KILLED
proof of input_OqOammL4Dm.trs
# AProVE Commit ID: aff8ecad908e01718a4c36e68d2e55d5e0f16e15 fuhs 20220216 unpublished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) CpxTrsToCdtProof [UPPER BOUND(ID), 0 ms]
(6) CdtProblem
    (7) CdtToCpxRelTrsProof [BOTH BOUNDS(ID, ID), 0 ms]
    (8) CpxRelTRS
    (9) RenamingProof [BOTH BOUNDS(ID, ID), 0 ms]
    (10) CpxRelTRS
        (11) TypeInferenceProof [BOTH BOUNDS(ID, ID), 0 ms]
        (12) typed CpxTrs
        (13) OrderProof [LOWER BOUND(ID), 8 ms]
        (14) typed CpxTrs
    (15) RelTrsToDecreasingLoopProblemProof [LOWER BOUND(ID), 0 ms]
    (16) TRS for Loop Detection
(17) RelTrsToWeightedTrsProof [UPPER BOUND(ID), 0 ms]
(18) CpxWeightedTrs
    (19) TypeInferenceProof [BOTH BOUNDS(ID, ID), 0 ms]
    (20) CpxTypedWeightedTrs
    (21) CompletionProof [UPPER BOUND(ID), 0 ms]
    (22) CpxTypedWeightedCompleteTrs
        (23) CpxTypedWeightedTrsToRntsProof [UPPER BOUND(ID), 0 ms]
        (24) CpxRNTS
    (25) CompletionProof [UPPER BOUND(ID), 0 ms]
    (26) CpxTypedWeightedCompleteTrs
        (27) NarrowingProof [BOTH BOUNDS(ID, ID), 0 ms]
        (28) CpxTypedWeightedCompleteTrs
        (29) CpxTypedWeightedTrsToRntsProof [UPPER BOUND(ID), 0 ms]
        (30) CpxRNTS
        (31) SimplificationProof [BOTH BOUNDS(ID, ID), 0 ms]
        (32) CpxRNTS
(33) CpxTrsToCdtProof [UPPER BOUND(ID), 0 ms]
(34) CdtProblem
    (35) CdtLeafRemovalProof [BOTH BOUNDS(ID, ID), 0 ms]
    (36) CdtProblem
    (37) CdtToCpxRelTrsProof [BOTH BOUNDS(ID, ID), 0 ms]
    (38) CpxRelTRS
        (39) RelTrsToTrsProof [UPPER BOUND(ID), 0 ms]
        (40) CpxTRS
        (41) RelTrsToWeightedTrsProof [BOTH BOUNDS(ID, ID), 0 ms]
        (42) CpxWeightedTrs
            (43) TypeInferenceProof [BOTH BOUNDS(ID, ID), 0 ms]
            (44) CpxTypedWeightedTrs
            (45) CompletionProof [UPPER BOUND(ID), 0 ms]
            (46) CpxTypedWeightedCompleteTrs
                (47) NarrowingProof [BOTH BOUNDS(ID, ID), 73 ms]
                (48) CpxTypedWeightedCompleteTrs
                (49) CpxTypedWeightedTrsToRntsProof [UPPER BOUND(ID), 0 ms]
                (50) CpxRNTS
                (51) SimplificationProof [BOTH BOUNDS(ID, ID), 0 ms]
                (52) CpxRNTS
            (53) CompletionProof [UPPER BOUND(ID), 0 ms]
            (54) CpxTypedWeightedCompleteTrs
                (55) CpxTypedWeightedTrsToRntsProof [UPPER BOUND(ID), 0 ms]
                (56) CpxRNTS
    (57) CdtNarrowingProof [BOTH BOUNDS(ID, ID), 1 ms]
    (58) CdtProblem
        (59) CdtRhsSimplificationProcessorProof [BOTH BOUNDS(ID, ID), 0 ms]
        (60) CdtProblem
        (61) CdtNarrowingProof [BOTH BOUNDS(ID, ID), 0 ms]
        (62) CdtProblem
        (63) CdtLeafRemovalProof [BOTH BOUNDS(ID, ID), 0 ms]
        (64) CdtProblem
        (65) CdtRhsSimplificationProcessorProof [BOTH BOUNDS(ID, ID), 0 ms]
        (66) CdtProblem
        (67) CdtNarrowingProof [BOTH BOUNDS(ID, ID), 0 ms]
        (68) CdtProblem
        (69) CdtRhsSimplificationProcessorProof [BOTH BOUNDS(ID, ID), 0 ms]
        (70) CdtProblem
        (71) CdtNarrowingProof [BOTH BOUNDS(ID, ID), 0 ms]
        (72) CdtProblem
        (73) CdtLeafRemovalProof [BOTH BOUNDS(ID, ID), 0 ms]
        (74) CdtProblem
        (75) CdtRhsSimplificationProcessorProof [BOTH BOUNDS(ID, ID), 1 ms]
        (76) CdtProblem
        (77) CdtNarrowingProof [BOTH BOUNDS(ID, ID), 0 ms]
        (78) CdtProblem
        (79) CdtRhsSimplificationProcessorProof [BOTH BOUNDS(ID, ID), 0 ms]
        (80) CdtProblem
        (81) CdtNarrowingProof [BOTH BOUNDS(ID, ID), 5 ms]
        (82) CdtProblem
        (83) CdtRhsSimplificationProcessorProof [BOTH BOUNDS(ID, ID), 0 ms]
        (84) CdtProblem
        (85) CdtNarrowingProof [BOTH BOUNDS(ID, ID), 1 ms]
        (86) CdtProblem
        (87) CdtRhsSimplificationProcessorProof [BOTH BOUNDS(ID, ID), 0 ms]
        (88) CdtProblem
        (89) CdtNarrowingProof [BOTH BOUNDS(ID, ID), 18 ms]
        (90) CdtProblem
        (91) CdtRhsSimplificationProcessorProof [BOTH BOUNDS(ID, ID), 0 ms]
        (92) CdtProblem
        (93) CdtNarrowingProof [BOTH BOUNDS(ID, ID), 19 ms]
        (94) CdtProblem
        (95) CdtRhsSimplificationProcessorProof [BOTH BOUNDS(ID, ID), 0 ms]
        (96) CdtProblem
        (97) CdtNarrowingProof [BOTH BOUNDS(ID, ID), 0 ms]
        (98) CdtProblem
        (99) CdtRhsSimplificationProcessorProof [BOTH BOUNDS(ID, ID), 0 ms]
        (100) CdtProblem
        (101) CdtNarrowingProof [BOTH BOUNDS(ID, ID), 0 ms]
        (102) CdtProblem
        (103) CdtLeafRemovalProof [BOTH BOUNDS(ID, ID), 0 ms]
        (104) CdtProblem
        (105) CdtNarrowingProof [BOTH BOUNDS(ID, ID), 10 ms]
        (106) CdtProblem
        (107) CdtRhsSimplificationProcessorProof [BOTH BOUNDS(ID, ID), 0 ms]
        (108) CdtProblem
        (109) CdtNarrowingProof [BOTH BOUNDS(ID, ID), 64 ms]
        (110) CdtProblem
        (111) CdtRhsSimplificationProcessorProof [BOTH BOUNDS(ID, ID), 0 ms]
        (112) CdtProblem
        (113) CdtNarrowingProof [BOTH BOUNDS(ID, ID), 4 ms]
        (114) CdtProblem
        (115) CdtRhsSimplificationProcessorProof [BOTH BOUNDS(ID, ID), 0 ms]
        (116) CdtProblem
        (117) CdtNarrowingProof [BOTH BOUNDS(ID, ID), 5 ms]
        (118) CdtProblem
        (119) CdtLeafRemovalProof [BOTH BOUNDS(ID, ID), 0 ms]
        (120) CdtProblem
        (121) CdtRhsSimplificationProcessorProof [BOTH BOUNDS(ID, ID), 11 ms]
        (122) CdtProblem
        (123) CdtNarrowingProof [BOTH BOUNDS(ID, ID), 45 ms]
        (124) CdtProblem
        (125) CdtLeafRemovalProof [BOTH BOUNDS(ID, ID), 0 ms]
        (126) CdtProblem
        (127) CdtRhsSimplificationProcessorProof [BOTH BOUNDS(ID, ID), 17 ms]
        (128) CdtProblem
        (129) CdtNarrowingProof [BOTH BOUNDS(ID, ID), 0 ms]
        (130) CdtProblem
        (131) CdtLeafRemovalProof [BOTH BOUNDS(ID, ID), 6 ms]
        (132) CdtProblem
        (133) CdtRhsSimplificationProcessorProof [BOTH BOUNDS(ID, ID), 0 ms]
        (134) CdtProblem
        (135) CdtNarrowingProof [BOTH BOUNDS(ID, ID), 0 ms]
        (136) CdtProblem
        (137) CdtLeafRemovalProof [BOTH BOUNDS(ID, ID), 0 ms]
        (138) CdtProblem
        (139) CdtRhsSimplificationProcessorProof [BOTH BOUNDS(ID, ID), 0 ms]
        (140) CdtProblem
        (141) CdtNarrowingProof [BOTH BOUNDS(ID, ID), 15 ms]
        (142) CdtProblem
        (143) CdtRhsSimplificationProcessorProof [BOTH BOUNDS(ID, ID), 0 ms]
        (144) CdtProblem
        (145) CdtNarrowingProof [BOTH BOUNDS(ID, ID), 17 ms]
        (146) CdtProblem
        (147) CdtRhsSimplificationProcessorProof [BOTH BOUNDS(ID, ID), 0 ms]
        (148) CdtProblem
        (149) CdtNarrowingProof [BOTH BOUNDS(ID, ID), 44 ms]
        (150) CdtProblem
        (151) CdtRhsSimplificationProcessorProof [BOTH BOUNDS(ID, ID), 0 ms]
        (152) CdtProblem
        (153) CdtNarrowingProof [BOTH BOUNDS(ID, ID), 38 ms]
        (154) CdtProblem
        (155) CdtRhsSimplificationProcessorProof [BOTH BOUNDS(ID, ID), 0 ms]
        (156) CdtProblem
        (157) CdtNarrowingProof [BOTH BOUNDS(ID, ID), 51 ms]
        (158) CdtProblem
        (159) CdtRhsSimplificationProcessorProof [BOTH BOUNDS(ID, ID), 4 ms]
        (160) CdtProblem
        (161) CdtNarrowingProof [BOTH BOUNDS(ID, ID), 49 ms]
        (162) CdtProblem
        (163) CdtRhsSimplificationProcessorProof [BOTH BOUNDS(ID, ID), 0 ms]
        (164) CdtProblem
        (165) CdtNarrowingProof [BOTH BOUNDS(ID, ID), 0 ms]
        (166) CdtProblem
        (167) CdtLeafRemovalProof [BOTH BOUNDS(ID, ID), 0 ms]
        (168) CdtProblem
        (169) CdtNarrowingProof [BOTH BOUNDS(ID, ID), 40 ms]
        (170) CdtProblem
        (171) CdtRhsSimplificationProcessorProof [BOTH BOUNDS(ID, ID), 0 ms]
        (172) CdtProblem
        (173) CdtNarrowingProof [BOTH BOUNDS(ID, ID), 78 ms]
        (174) CdtProblem
        (175) CdtRhsSimplificationProcessorProof [BOTH BOUNDS(ID, ID), 12 ms]
        (176) CdtProblem
        (177) CdtNarrowingProof [BOTH BOUNDS(ID, ID), 72 ms]
        (178) CdtProblem
        (179) CdtRhsSimplificationProcessorProof [BOTH BOUNDS(ID, ID), 0 ms]
        (180) CdtProblem
        (181) CdtNarrowingProof [BOTH BOUNDS(ID, ID), 105 ms]
        (182) CdtProblem
        (183) CdtLeafRemovalProof [BOTH BOUNDS(ID, ID), 0 ms]
        (184) CdtProblem
        (185) CdtRhsSimplificationProcessorProof [BOTH BOUNDS(ID, ID), 12 ms]
        (186) CdtProblem
        (187) CdtNarrowingProof [BOTH BOUNDS(ID, ID), 99 ms]
        (188) CdtProblem
        (189) CdtLeafRemovalProof [BOTH BOUNDS(ID, ID), 0 ms]
        (190) CdtProblem
        (191) CdtRhsSimplificationProcessorProof [BOTH BOUNDS(ID, ID), 0 ms]
        (192) CdtProblem
        (193) CdtNarrowingProof [BOTH BOUNDS(ID, ID), 114 ms]
        (194) CdtProblem
        (195) CdtLeafRemovalProof [BOTH BOUNDS(ID, ID), 0 ms]
        (196) CdtProblem
        (197) CdtRhsSimplificationProcessorProof [BOTH BOUNDS(ID, ID), 0 ms]
        (198) CdtProblem
        (199) CdtNarrowingProof [BOTH BOUNDS(ID, ID), 68 ms]
        (200) CdtProblem
        (201) CdtLeafRemovalProof [BOTH BOUNDS(ID, ID), 0 ms]
        (202) CdtProblem
        (203) CdtRhsSimplificationProcessorProof [BOTH BOUNDS(ID, ID), 16 ms]
        (204) CdtProblem
        (205) CdtForwardInstantiationProof [BOTH BOUNDS(ID, ID), 206 ms]
        (206) CdtProblem
        (207) CdtNarrowingProof [BOTH BOUNDS(ID, ID), 35 ms]
        (208) CdtProblem
        (209) CdtLeafRemovalProof [BOTH BOUNDS(ID, ID), 0 ms]
        (210) CdtProblem
        (211) CdtRhsSimplificationProcessorProof [BOTH BOUNDS(ID, ID), 0 ms]
        (212) 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__from(X) -> cons(mark(X), from(s(X)))
   a__sel(0, cons(X, Y)) -> mark(X)
   a__sel(s(X), cons(Y, Z)) -> a__sel(mark(X), mark(Z))
   mark(from(X)) -> a__from(mark(X))
   mark(sel(X1, X2)) -> a__sel(mark(X1), mark(X2))
   mark(cons(X1, X2)) -> cons(mark(X1), X2)
   mark(s(X)) -> s(mark(X))
   mark(0) -> 0
   a__from(X) -> from(X)
   a__sel(X1, X2) -> sel(X1, X2)

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__from(X) -> cons(mark(X), from(s(X)))
   a__sel(0', cons(X, Y)) -> mark(X)
   a__sel(s(X), cons(Y, Z)) -> a__sel(mark(X), mark(Z))
   mark(from(X)) -> a__from(mark(X))
   mark(sel(X1, X2)) -> a__sel(mark(X1), mark(X2))
   mark(cons(X1, X2)) -> cons(mark(X1), X2)
   mark(s(X)) -> s(mark(X))
   mark(0') -> 0'
   a__from(X) -> from(X)
   a__sel(X1, X2) -> sel(X1, X2)

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__from(X) -> cons(mark(X), from(s(X)))
   a__sel(0, cons(X, Y)) -> mark(X)
   a__sel(s(X), cons(Y, Z)) -> a__sel(mark(X), mark(Z))
   mark(from(X)) -> a__from(mark(X))
   mark(sel(X1, X2)) -> a__sel(mark(X1), mark(X2))
   mark(cons(X1, X2)) -> cons(mark(X1), X2)
   mark(s(X)) -> s(mark(X))
   mark(0) -> 0
   a__from(X) -> from(X)
   a__sel(X1, X2) -> sel(X1, X2)

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

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

(6)
Obligation:
Complexity Dependency Tuples Problem

Rules:
   a__from(z0) -> cons(mark(z0), from(s(z0)))
   a__from(z0) -> from(z0)
   a__sel(0, cons(z0, z1)) -> mark(z0)
   a__sel(s(z0), cons(z1, z2)) -> a__sel(mark(z0), mark(z2))
   a__sel(z0, z1) -> sel(z0, z1)
   mark(from(z0)) -> a__from(mark(z0))
   mark(sel(z0, z1)) -> a__sel(mark(z0), mark(z1))
   mark(cons(z0, z1)) -> cons(mark(z0), z1)
   mark(s(z0)) -> s(mark(z0))
   mark(0) -> 0
Tuples:
   A__FROM(z0) -> c(MARK(z0))
   A__FROM(z0) -> c1
   A__SEL(0, cons(z0, z1)) -> c2(MARK(z0))
   A__SEL(s(z0), cons(z1, z2)) -> c3(A__SEL(mark(z0), mark(z2)), MARK(z0))
   A__SEL(s(z0), cons(z1, z2)) -> c4(A__SEL(mark(z0), mark(z2)), MARK(z2))
   A__SEL(z0, z1) -> c5
   MARK(from(z0)) -> c6(A__FROM(mark(z0)), MARK(z0))
   MARK(sel(z0, z1)) -> c7(A__SEL(mark(z0), mark(z1)), MARK(z0))
   MARK(sel(z0, z1)) -> c8(A__SEL(mark(z0), mark(z1)), MARK(z1))
   MARK(cons(z0, z1)) -> c9(MARK(z0))
   MARK(s(z0)) -> c10(MARK(z0))
   MARK(0) -> c11
S tuples:
   A__FROM(z0) -> c(MARK(z0))
   A__FROM(z0) -> c1
   A__SEL(0, cons(z0, z1)) -> c2(MARK(z0))
   A__SEL(s(z0), cons(z1, z2)) -> c3(A__SEL(mark(z0), mark(z2)), MARK(z0))
   A__SEL(s(z0), cons(z1, z2)) -> c4(A__SEL(mark(z0), mark(z2)), MARK(z2))
   A__SEL(z0, z1) -> c5
   MARK(from(z0)) -> c6(A__FROM(mark(z0)), MARK(z0))
   MARK(sel(z0, z1)) -> c7(A__SEL(mark(z0), mark(z1)), MARK(z0))
   MARK(sel(z0, z1)) -> c8(A__SEL(mark(z0), mark(z1)), MARK(z1))
   MARK(cons(z0, z1)) -> c9(MARK(z0))
   MARK(s(z0)) -> c10(MARK(z0))
   MARK(0) -> c11
K tuples:none
Defined Rule Symbols:   a__from_1, a__sel_2, mark_1

Defined Pair Symbols:   A__FROM_1, A__SEL_2, MARK_1

Compound Symbols:   c_1, c1, c2_1, c3_2, c4_2, c5, c6_2, c7_2, c8_2, c9_1, c10_1, c11


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

(7) CdtToCpxRelTrsProof (BOTH BOUNDS(ID, ID))
Converted S to standard rules, and D \ S as well as R to relative rules.
----------------------------------------

(8)
Obligation:
The Runtime Complexity (innermost) of the given CpxRelTRS could be proven to be BOUNDS(1, INF).


The TRS R consists of the following rules:

   A__FROM(z0) -> c(MARK(z0))
   A__FROM(z0) -> c1
   A__SEL(0, cons(z0, z1)) -> c2(MARK(z0))
   A__SEL(s(z0), cons(z1, z2)) -> c3(A__SEL(mark(z0), mark(z2)), MARK(z0))
   A__SEL(s(z0), cons(z1, z2)) -> c4(A__SEL(mark(z0), mark(z2)), MARK(z2))
   A__SEL(z0, z1) -> c5
   MARK(from(z0)) -> c6(A__FROM(mark(z0)), MARK(z0))
   MARK(sel(z0, z1)) -> c7(A__SEL(mark(z0), mark(z1)), MARK(z0))
   MARK(sel(z0, z1)) -> c8(A__SEL(mark(z0), mark(z1)), MARK(z1))
   MARK(cons(z0, z1)) -> c9(MARK(z0))
   MARK(s(z0)) -> c10(MARK(z0))
   MARK(0) -> c11

The (relative) TRS S consists of the following rules:

   a__from(z0) -> cons(mark(z0), from(s(z0)))
   a__from(z0) -> from(z0)
   a__sel(0, cons(z0, z1)) -> mark(z0)
   a__sel(s(z0), cons(z1, z2)) -> a__sel(mark(z0), mark(z2))
   a__sel(z0, z1) -> sel(z0, z1)
   mark(from(z0)) -> a__from(mark(z0))
   mark(sel(z0, z1)) -> a__sel(mark(z0), mark(z1))
   mark(cons(z0, z1)) -> cons(mark(z0), z1)
   mark(s(z0)) -> s(mark(z0))
   mark(0) -> 0

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

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

(10)
Obligation:
The Runtime Complexity (innermost) of the given CpxRelTRS could be proven to be BOUNDS(1, INF).


The TRS R consists of the following rules:

   A__FROM(z0) -> c(MARK(z0))
   A__FROM(z0) -> c1
   A__SEL(0', cons(z0, z1)) -> c2(MARK(z0))
   A__SEL(s(z0), cons(z1, z2)) -> c3(A__SEL(mark(z0), mark(z2)), MARK(z0))
   A__SEL(s(z0), cons(z1, z2)) -> c4(A__SEL(mark(z0), mark(z2)), MARK(z2))
   A__SEL(z0, z1) -> c5
   MARK(from(z0)) -> c6(A__FROM(mark(z0)), MARK(z0))
   MARK(sel(z0, z1)) -> c7(A__SEL(mark(z0), mark(z1)), MARK(z0))
   MARK(sel(z0, z1)) -> c8(A__SEL(mark(z0), mark(z1)), MARK(z1))
   MARK(cons(z0, z1)) -> c9(MARK(z0))
   MARK(s(z0)) -> c10(MARK(z0))
   MARK(0') -> c11

The (relative) TRS S consists of the following rules:

   a__from(z0) -> cons(mark(z0), from(s(z0)))
   a__from(z0) -> from(z0)
   a__sel(0', cons(z0, z1)) -> mark(z0)
   a__sel(s(z0), cons(z1, z2)) -> a__sel(mark(z0), mark(z2))
   a__sel(z0, z1) -> sel(z0, z1)
   mark(from(z0)) -> a__from(mark(z0))
   mark(sel(z0, z1)) -> a__sel(mark(z0), mark(z1))
   mark(cons(z0, z1)) -> cons(mark(z0), z1)
   mark(s(z0)) -> s(mark(z0))
   mark(0') -> 0'

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

(11) TypeInferenceProof (BOTH BOUNDS(ID, ID))
Inferred types.
----------------------------------------

(12)
Obligation:
Innermost TRS:
Rules:
A__FROM(z0) -> c(MARK(z0))
A__FROM(z0) -> c1
A__SEL(0', cons(z0, z1)) -> c2(MARK(z0))
A__SEL(s(z0), cons(z1, z2)) -> c3(A__SEL(mark(z0), mark(z2)), MARK(z0))
A__SEL(s(z0), cons(z1, z2)) -> c4(A__SEL(mark(z0), mark(z2)), MARK(z2))
A__SEL(z0, z1) -> c5
MARK(from(z0)) -> c6(A__FROM(mark(z0)), MARK(z0))
MARK(sel(z0, z1)) -> c7(A__SEL(mark(z0), mark(z1)), MARK(z0))
MARK(sel(z0, z1)) -> c8(A__SEL(mark(z0), mark(z1)), MARK(z1))
MARK(cons(z0, z1)) -> c9(MARK(z0))
MARK(s(z0)) -> c10(MARK(z0))
MARK(0') -> c11
a__from(z0) -> cons(mark(z0), from(s(z0)))
a__from(z0) -> from(z0)
a__sel(0', cons(z0, z1)) -> mark(z0)
a__sel(s(z0), cons(z1, z2)) -> a__sel(mark(z0), mark(z2))
a__sel(z0, z1) -> sel(z0, z1)
mark(from(z0)) -> a__from(mark(z0))
mark(sel(z0, z1)) -> a__sel(mark(z0), mark(z1))
mark(cons(z0, z1)) -> cons(mark(z0), z1)
mark(s(z0)) -> s(mark(z0))
mark(0') -> 0'

Types:
A__FROM :: 0':cons:s:from:sel -> c:c1
c :: c6:c7:c8:c9:c10:c11 -> c:c1
MARK :: 0':cons:s:from:sel -> c6:c7:c8:c9:c10:c11
c1 :: c:c1
A__SEL :: 0':cons:s:from:sel -> 0':cons:s:from:sel -> c2:c3:c4:c5
0' :: 0':cons:s:from:sel
cons :: 0':cons:s:from:sel -> 0':cons:s:from:sel -> 0':cons:s:from:sel
c2 :: c6:c7:c8:c9:c10:c11 -> c2:c3:c4:c5
s :: 0':cons:s:from:sel -> 0':cons:s:from:sel
c3 :: c2:c3:c4:c5 -> c6:c7:c8:c9:c10:c11 -> c2:c3:c4:c5
mark :: 0':cons:s:from:sel -> 0':cons:s:from:sel
c4 :: c2:c3:c4:c5 -> c6:c7:c8:c9:c10:c11 -> c2:c3:c4:c5
c5 :: c2:c3:c4:c5
from :: 0':cons:s:from:sel -> 0':cons:s:from:sel
c6 :: c:c1 -> c6:c7:c8:c9:c10:c11 -> c6:c7:c8:c9:c10:c11
sel :: 0':cons:s:from:sel -> 0':cons:s:from:sel -> 0':cons:s:from:sel
c7 :: c2:c3:c4:c5 -> c6:c7:c8:c9:c10:c11 -> c6:c7:c8:c9:c10:c11
c8 :: c2:c3:c4:c5 -> c6:c7:c8:c9:c10:c11 -> c6:c7:c8:c9:c10:c11
c9 :: c6:c7:c8:c9:c10:c11 -> c6:c7:c8:c9:c10:c11
c10 :: c6:c7:c8:c9:c10:c11 -> c6:c7:c8:c9:c10:c11
c11 :: c6:c7:c8:c9:c10:c11
a__from :: 0':cons:s:from:sel -> 0':cons:s:from:sel
a__sel :: 0':cons:s:from:sel -> 0':cons:s:from:sel -> 0':cons:s:from:sel
hole_c:c11_12 :: c:c1
hole_0':cons:s:from:sel2_12 :: 0':cons:s:from:sel
hole_c6:c7:c8:c9:c10:c113_12 :: c6:c7:c8:c9:c10:c11
hole_c2:c3:c4:c54_12 :: c2:c3:c4:c5
gen_0':cons:s:from:sel5_12 :: Nat -> 0':cons:s:from:sel
gen_c6:c7:c8:c9:c10:c116_12 :: Nat -> c6:c7:c8:c9:c10:c11
gen_c2:c3:c4:c57_12 :: Nat -> c2:c3:c4:c5

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

(13) OrderProof (LOWER BOUND(ID))
Heuristically decided to analyse the following defined symbols:
A__FROM, MARK, A__SEL, mark, a__from, a__sel

They will be analysed ascendingly in the following order:
A__FROM = MARK
A__FROM = A__SEL
MARK = A__SEL
mark < MARK
mark < A__SEL
mark = a__from
mark = a__sel
a__from = a__sel

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

(14)
Obligation:
Innermost TRS:
Rules:
A__FROM(z0) -> c(MARK(z0))
A__FROM(z0) -> c1
A__SEL(0', cons(z0, z1)) -> c2(MARK(z0))
A__SEL(s(z0), cons(z1, z2)) -> c3(A__SEL(mark(z0), mark(z2)), MARK(z0))
A__SEL(s(z0), cons(z1, z2)) -> c4(A__SEL(mark(z0), mark(z2)), MARK(z2))
A__SEL(z0, z1) -> c5
MARK(from(z0)) -> c6(A__FROM(mark(z0)), MARK(z0))
MARK(sel(z0, z1)) -> c7(A__SEL(mark(z0), mark(z1)), MARK(z0))
MARK(sel(z0, z1)) -> c8(A__SEL(mark(z0), mark(z1)), MARK(z1))
MARK(cons(z0, z1)) -> c9(MARK(z0))
MARK(s(z0)) -> c10(MARK(z0))
MARK(0') -> c11
a__from(z0) -> cons(mark(z0), from(s(z0)))
a__from(z0) -> from(z0)
a__sel(0', cons(z0, z1)) -> mark(z0)
a__sel(s(z0), cons(z1, z2)) -> a__sel(mark(z0), mark(z2))
a__sel(z0, z1) -> sel(z0, z1)
mark(from(z0)) -> a__from(mark(z0))
mark(sel(z0, z1)) -> a__sel(mark(z0), mark(z1))
mark(cons(z0, z1)) -> cons(mark(z0), z1)
mark(s(z0)) -> s(mark(z0))
mark(0') -> 0'

Types:
A__FROM :: 0':cons:s:from:sel -> c:c1
c :: c6:c7:c8:c9:c10:c11 -> c:c1
MARK :: 0':cons:s:from:sel -> c6:c7:c8:c9:c10:c11
c1 :: c:c1
A__SEL :: 0':cons:s:from:sel -> 0':cons:s:from:sel -> c2:c3:c4:c5
0' :: 0':cons:s:from:sel
cons :: 0':cons:s:from:sel -> 0':cons:s:from:sel -> 0':cons:s:from:sel
c2 :: c6:c7:c8:c9:c10:c11 -> c2:c3:c4:c5
s :: 0':cons:s:from:sel -> 0':cons:s:from:sel
c3 :: c2:c3:c4:c5 -> c6:c7:c8:c9:c10:c11 -> c2:c3:c4:c5
mark :: 0':cons:s:from:sel -> 0':cons:s:from:sel
c4 :: c2:c3:c4:c5 -> c6:c7:c8:c9:c10:c11 -> c2:c3:c4:c5
c5 :: c2:c3:c4:c5
from :: 0':cons:s:from:sel -> 0':cons:s:from:sel
c6 :: c:c1 -> c6:c7:c8:c9:c10:c11 -> c6:c7:c8:c9:c10:c11
sel :: 0':cons:s:from:sel -> 0':cons:s:from:sel -> 0':cons:s:from:sel
c7 :: c2:c3:c4:c5 -> c6:c7:c8:c9:c10:c11 -> c6:c7:c8:c9:c10:c11
c8 :: c2:c3:c4:c5 -> c6:c7:c8:c9:c10:c11 -> c6:c7:c8:c9:c10:c11
c9 :: c6:c7:c8:c9:c10:c11 -> c6:c7:c8:c9:c10:c11
c10 :: c6:c7:c8:c9:c10:c11 -> c6:c7:c8:c9:c10:c11
c11 :: c6:c7:c8:c9:c10:c11
a__from :: 0':cons:s:from:sel -> 0':cons:s:from:sel
a__sel :: 0':cons:s:from:sel -> 0':cons:s:from:sel -> 0':cons:s:from:sel
hole_c:c11_12 :: c:c1
hole_0':cons:s:from:sel2_12 :: 0':cons:s:from:sel
hole_c6:c7:c8:c9:c10:c113_12 :: c6:c7:c8:c9:c10:c11
hole_c2:c3:c4:c54_12 :: c2:c3:c4:c5
gen_0':cons:s:from:sel5_12 :: Nat -> 0':cons:s:from:sel
gen_c6:c7:c8:c9:c10:c116_12 :: Nat -> c6:c7:c8:c9:c10:c11
gen_c2:c3:c4:c57_12 :: Nat -> c2:c3:c4:c5


Generator Equations:
gen_0':cons:s:from:sel5_12(0) <=> 0'
gen_0':cons:s:from:sel5_12(+(x, 1)) <=> cons(0', gen_0':cons:s:from:sel5_12(x))
gen_c6:c7:c8:c9:c10:c116_12(0) <=> c11
gen_c6:c7:c8:c9:c10:c116_12(+(x, 1)) <=> c6(c(c11), gen_c6:c7:c8:c9:c10:c116_12(x))
gen_c2:c3:c4:c57_12(0) <=> c2(c11)
gen_c2:c3:c4:c57_12(+(x, 1)) <=> c3(gen_c2:c3:c4:c57_12(x), c11)


The following defined symbols remain to be analysed:
a__from, A__FROM, MARK, A__SEL, mark, a__sel

They will be analysed ascendingly in the following order:
A__FROM = MARK
A__FROM = A__SEL
MARK = A__SEL
mark < MARK
mark < A__SEL
mark = a__from
mark = a__sel
a__from = a__sel

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

(15) RelTrsToDecreasingLoopProblemProof (LOWER BOUND(ID))
Transformed a relative TRS into a decreasing-loop problem.
----------------------------------------

(16)
Obligation:
Analyzing the following TRS for decreasing loops:

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


The TRS R consists of the following rules:

   A__FROM(z0) -> c(MARK(z0))
   A__FROM(z0) -> c1
   A__SEL(0, cons(z0, z1)) -> c2(MARK(z0))
   A__SEL(s(z0), cons(z1, z2)) -> c3(A__SEL(mark(z0), mark(z2)), MARK(z0))
   A__SEL(s(z0), cons(z1, z2)) -> c4(A__SEL(mark(z0), mark(z2)), MARK(z2))
   A__SEL(z0, z1) -> c5
   MARK(from(z0)) -> c6(A__FROM(mark(z0)), MARK(z0))
   MARK(sel(z0, z1)) -> c7(A__SEL(mark(z0), mark(z1)), MARK(z0))
   MARK(sel(z0, z1)) -> c8(A__SEL(mark(z0), mark(z1)), MARK(z1))
   MARK(cons(z0, z1)) -> c9(MARK(z0))
   MARK(s(z0)) -> c10(MARK(z0))
   MARK(0) -> c11

The (relative) TRS S consists of the following rules:

   a__from(z0) -> cons(mark(z0), from(s(z0)))
   a__from(z0) -> from(z0)
   a__sel(0, cons(z0, z1)) -> mark(z0)
   a__sel(s(z0), cons(z1, z2)) -> a__sel(mark(z0), mark(z2))
   a__sel(z0, z1) -> sel(z0, z1)
   mark(from(z0)) -> a__from(mark(z0))
   mark(sel(z0, z1)) -> a__sel(mark(z0), mark(z1))
   mark(cons(z0, z1)) -> cons(mark(z0), z1)
   mark(s(z0)) -> s(mark(z0))
   mark(0) -> 0

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

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

(18)
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__from(X) -> cons(mark(X), from(s(X))) [1]
   a__sel(0, cons(X, Y)) -> mark(X) [1]
   a__sel(s(X), cons(Y, Z)) -> a__sel(mark(X), mark(Z)) [1]
   mark(from(X)) -> a__from(mark(X)) [1]
   mark(sel(X1, X2)) -> a__sel(mark(X1), mark(X2)) [1]
   mark(cons(X1, X2)) -> cons(mark(X1), X2) [1]
   mark(s(X)) -> s(mark(X)) [1]
   mark(0) -> 0 [1]
   a__from(X) -> from(X) [1]
   a__sel(X1, X2) -> sel(X1, X2) [1]

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

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

(20)
Obligation:
Runtime Complexity Weighted TRS with Types.
The TRS R consists of the following rules:

   a__from(X) -> cons(mark(X), from(s(X))) [1]
   a__sel(0, cons(X, Y)) -> mark(X) [1]
   a__sel(s(X), cons(Y, Z)) -> a__sel(mark(X), mark(Z)) [1]
   mark(from(X)) -> a__from(mark(X)) [1]
   mark(sel(X1, X2)) -> a__sel(mark(X1), mark(X2)) [1]
   mark(cons(X1, X2)) -> cons(mark(X1), X2) [1]
   mark(s(X)) -> s(mark(X)) [1]
   mark(0) -> 0 [1]
   a__from(X) -> from(X) [1]
   a__sel(X1, X2) -> sel(X1, X2) [1]

The TRS has the following type information:
a__from :: s:from:cons:0:sel -> s:from:cons:0:sel
cons :: s:from:cons:0:sel -> s:from:cons:0:sel -> s:from:cons:0:sel
mark :: s:from:cons:0:sel -> s:from:cons:0:sel
from :: s:from:cons:0:sel -> s:from:cons:0:sel
s :: s:from:cons:0:sel -> s:from:cons:0:sel
a__sel :: s:from:cons:0:sel -> s:from:cons:0:sel -> s:from:cons:0:sel
0 :: s:from:cons:0:sel
sel :: s:from:cons:0:sel -> s:from:cons:0:sel -> s:from:cons:0:sel

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

(21) 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

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

(22)
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__from(X) -> cons(mark(X), from(s(X))) [1]
   a__sel(0, cons(X, Y)) -> mark(X) [1]
   a__sel(s(X), cons(Y, Z)) -> a__sel(mark(X), mark(Z)) [1]
   mark(from(X)) -> a__from(mark(X)) [1]
   mark(sel(X1, X2)) -> a__sel(mark(X1), mark(X2)) [1]
   mark(cons(X1, X2)) -> cons(mark(X1), X2) [1]
   mark(s(X)) -> s(mark(X)) [1]
   mark(0) -> 0 [1]
   a__from(X) -> from(X) [1]
   a__sel(X1, X2) -> sel(X1, X2) [1]

The TRS has the following type information:
a__from :: s:from:cons:0:sel -> s:from:cons:0:sel
cons :: s:from:cons:0:sel -> s:from:cons:0:sel -> s:from:cons:0:sel
mark :: s:from:cons:0:sel -> s:from:cons:0:sel
from :: s:from:cons:0:sel -> s:from:cons:0:sel
s :: s:from:cons:0:sel -> s:from:cons:0:sel
a__sel :: s:from:cons:0:sel -> s:from:cons:0:sel -> s:from:cons:0:sel
0 :: s:from:cons:0:sel
sel :: s:from:cons:0:sel -> s:from:cons:0:sel -> s:from:cons:0:sel

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

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

   0 => 0

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

(24)
Obligation:
Complexity RNTS consisting of the following rules:

   a__from(z) -{ 1 }-> 1 + X :|: X >= 0, z = X
   a__from(z) -{ 1 }-> 1 + mark(X) + (1 + (1 + X)) :|: X >= 0, z = X
   a__sel(z, z') -{ 1 }-> mark(X) :|: Y >= 0, X >= 0, z' = 1 + X + Y, z = 0
   a__sel(z, z') -{ 1 }-> a__sel(mark(X), mark(Z)) :|: Z >= 0, z = 1 + X, Y >= 0, X >= 0, z' = 1 + Y + Z
   a__sel(z, z') -{ 1 }-> 1 + X1 + X2 :|: X1 >= 0, X2 >= 0, z = X1, z' = X2
   mark(z) -{ 1 }-> a__sel(mark(X1), mark(X2)) :|: X1 >= 0, X2 >= 0, z = 1 + X1 + X2
   mark(z) -{ 1 }-> a__from(mark(X)) :|: z = 1 + X, X >= 0
   mark(z) -{ 1 }-> 0 :|: z = 0
   mark(z) -{ 1 }-> 1 + mark(X) :|: z = 1 + X, X >= 0
   mark(z) -{ 1 }-> 1 + mark(X1) + X2 :|: X1 >= 0, X2 >= 0, z = 1 + X1 + X2

Only complete derivations are relevant for the runtime complexity.

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

(25) 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__from_1
   a__sel_2

Due to the following rules being added:
none

And the following fresh constants: none

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

(26)
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__from(X) -> cons(mark(X), from(s(X))) [1]
   a__sel(0, cons(X, Y)) -> mark(X) [1]
   a__sel(s(X), cons(Y, Z)) -> a__sel(mark(X), mark(Z)) [1]
   mark(from(X)) -> a__from(mark(X)) [1]
   mark(sel(X1, X2)) -> a__sel(mark(X1), mark(X2)) [1]
   mark(cons(X1, X2)) -> cons(mark(X1), X2) [1]
   mark(s(X)) -> s(mark(X)) [1]
   mark(0) -> 0 [1]
   a__from(X) -> from(X) [1]
   a__sel(X1, X2) -> sel(X1, X2) [1]

The TRS has the following type information:
a__from :: s:from:cons:0:sel -> s:from:cons:0:sel
cons :: s:from:cons:0:sel -> s:from:cons:0:sel -> s:from:cons:0:sel
mark :: s:from:cons:0:sel -> s:from:cons:0:sel
from :: s:from:cons:0:sel -> s:from:cons:0:sel
s :: s:from:cons:0:sel -> s:from:cons:0:sel
a__sel :: s:from:cons:0:sel -> s:from:cons:0:sel -> s:from:cons:0:sel
0 :: s:from:cons:0:sel
sel :: s:from:cons:0:sel -> s:from:cons:0:sel -> s:from:cons:0:sel

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

(27) NarrowingProof (BOTH BOUNDS(ID, ID))
Narrowed the inner basic terms of all right-hand sides by a single narrowing step.
----------------------------------------

(28)
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__from(X) -> cons(mark(X), from(s(X))) [1]
   a__sel(0, cons(X, Y)) -> mark(X) [1]
   a__sel(s(X), cons(Y, Z)) -> a__sel(mark(X), mark(Z)) [1]
   mark(from(from(X30))) -> a__from(a__from(mark(X30))) [2]
   mark(from(sel(X112, X211))) -> a__from(a__sel(mark(X112), mark(X211))) [2]
   mark(from(cons(X113, X212))) -> a__from(cons(mark(X113), X212)) [2]
   mark(from(s(X31))) -> a__from(s(mark(X31))) [2]
   mark(from(0)) -> a__from(0) [2]
   mark(sel(X1, X2)) -> a__sel(mark(X1), mark(X2)) [1]
   mark(cons(X1, X2)) -> cons(mark(X1), X2) [1]
   mark(s(X)) -> s(mark(X)) [1]
   mark(0) -> 0 [1]
   a__from(X) -> from(X) [1]
   a__sel(X1, X2) -> sel(X1, X2) [1]

The TRS has the following type information:
a__from :: s:from:cons:0:sel -> s:from:cons:0:sel
cons :: s:from:cons:0:sel -> s:from:cons:0:sel -> s:from:cons:0:sel
mark :: s:from:cons:0:sel -> s:from:cons:0:sel
from :: s:from:cons:0:sel -> s:from:cons:0:sel
s :: s:from:cons:0:sel -> s:from:cons:0:sel
a__sel :: s:from:cons:0:sel -> s:from:cons:0:sel -> s:from:cons:0:sel
0 :: s:from:cons:0:sel
sel :: s:from:cons:0:sel -> s:from:cons:0:sel -> s:from:cons:0:sel

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

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

   0 => 0

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

(30)
Obligation:
Complexity RNTS consisting of the following rules:

   a__from(z) -{ 1 }-> 1 + X :|: X >= 0, z = X
   a__from(z) -{ 1 }-> 1 + mark(X) + (1 + (1 + X)) :|: X >= 0, z = X
   a__sel(z, z') -{ 1 }-> mark(X) :|: Y >= 0, X >= 0, z' = 1 + X + Y, z = 0
   a__sel(z, z') -{ 1 }-> a__sel(mark(X), mark(Z)) :|: Z >= 0, z = 1 + X, Y >= 0, X >= 0, z' = 1 + Y + Z
   a__sel(z, z') -{ 1 }-> 1 + X1 + X2 :|: X1 >= 0, X2 >= 0, z = X1, z' = X2
   mark(z) -{ 1 }-> a__sel(mark(X1), mark(X2)) :|: X1 >= 0, X2 >= 0, z = 1 + X1 + X2
   mark(z) -{ 2 }-> a__from(a__sel(mark(X112), mark(X211))) :|: z = 1 + (1 + X112 + X211), X112 >= 0, X211 >= 0
   mark(z) -{ 2 }-> a__from(a__from(mark(X30))) :|: z = 1 + (1 + X30), X30 >= 0
   mark(z) -{ 2 }-> a__from(0) :|: z = 1 + 0
   mark(z) -{ 2 }-> a__from(1 + mark(X31)) :|: X31 >= 0, z = 1 + (1 + X31)
   mark(z) -{ 2 }-> a__from(1 + mark(X113) + X212) :|: X113 >= 0, X212 >= 0, z = 1 + (1 + X113 + X212)
   mark(z) -{ 1 }-> 0 :|: z = 0
   mark(z) -{ 1 }-> 1 + mark(X) :|: z = 1 + X, X >= 0
   mark(z) -{ 1 }-> 1 + mark(X1) + X2 :|: X1 >= 0, X2 >= 0, z = 1 + X1 + X2


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

(31) SimplificationProof (BOTH BOUNDS(ID, ID))
Simplified the RNTS by moving equalities from the constraints into the right-hand sides.
----------------------------------------

(32)
Obligation:
Complexity RNTS consisting of the following rules:

   a__from(z) -{ 1 }-> 1 + z :|: z >= 0
   a__from(z) -{ 1 }-> 1 + mark(z) + (1 + (1 + z)) :|: z >= 0
   a__sel(z, z') -{ 1 }-> mark(X) :|: Y >= 0, X >= 0, z' = 1 + X + Y, z = 0
   a__sel(z, z') -{ 1 }-> a__sel(mark(z - 1), mark(Z)) :|: Z >= 0, Y >= 0, z - 1 >= 0, z' = 1 + Y + Z
   a__sel(z, z') -{ 1 }-> 1 + z + z' :|: z >= 0, z' >= 0
   mark(z) -{ 1 }-> a__sel(mark(X1), mark(X2)) :|: X1 >= 0, X2 >= 0, z = 1 + X1 + X2
   mark(z) -{ 2 }-> a__from(a__sel(mark(X112), mark(X211))) :|: z = 1 + (1 + X112 + X211), X112 >= 0, X211 >= 0
   mark(z) -{ 2 }-> a__from(a__from(mark(z - 2))) :|: z - 2 >= 0
   mark(z) -{ 2 }-> a__from(0) :|: z = 1 + 0
   mark(z) -{ 2 }-> a__from(1 + mark(z - 2)) :|: z - 2 >= 0
   mark(z) -{ 2 }-> a__from(1 + mark(X113) + X212) :|: X113 >= 0, X212 >= 0, z = 1 + (1 + X113 + X212)
   mark(z) -{ 1 }-> 0 :|: z = 0
   mark(z) -{ 1 }-> 1 + mark(z - 1) :|: z - 1 >= 0
   mark(z) -{ 1 }-> 1 + mark(X1) + X2 :|: X1 >= 0, X2 >= 0, z = 1 + X1 + X2


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

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

(34)
Obligation:
Complexity Dependency Tuples Problem

Rules:
   a__from(z0) -> cons(mark(z0), from(s(z0)))
   a__from(z0) -> from(z0)
   a__sel(0, cons(z0, z1)) -> mark(z0)
   a__sel(s(z0), cons(z1, z2)) -> a__sel(mark(z0), mark(z2))
   a__sel(z0, z1) -> sel(z0, z1)
   mark(from(z0)) -> a__from(mark(z0))
   mark(sel(z0, z1)) -> a__sel(mark(z0), mark(z1))
   mark(cons(z0, z1)) -> cons(mark(z0), z1)
   mark(s(z0)) -> s(mark(z0))
   mark(0) -> 0
Tuples:
   A__FROM(z0) -> c(MARK(z0))
   A__FROM(z0) -> c1
   A__SEL(0, cons(z0, z1)) -> c2(MARK(z0))
   A__SEL(s(z0), cons(z1, z2)) -> c3(A__SEL(mark(z0), mark(z2)), MARK(z0))
   A__SEL(s(z0), cons(z1, z2)) -> c4(A__SEL(mark(z0), mark(z2)), MARK(z2))
   A__SEL(z0, z1) -> c5
   MARK(from(z0)) -> c6(A__FROM(mark(z0)), MARK(z0))
   MARK(sel(z0, z1)) -> c7(A__SEL(mark(z0), mark(z1)), MARK(z0))
   MARK(sel(z0, z1)) -> c8(A__SEL(mark(z0), mark(z1)), MARK(z1))
   MARK(cons(z0, z1)) -> c9(MARK(z0))
   MARK(s(z0)) -> c10(MARK(z0))
   MARK(0) -> c11
S tuples:
   A__FROM(z0) -> c(MARK(z0))
   A__FROM(z0) -> c1
   A__SEL(0, cons(z0, z1)) -> c2(MARK(z0))
   A__SEL(s(z0), cons(z1, z2)) -> c3(A__SEL(mark(z0), mark(z2)), MARK(z0))
   A__SEL(s(z0), cons(z1, z2)) -> c4(A__SEL(mark(z0), mark(z2)), MARK(z2))
   A__SEL(z0, z1) -> c5
   MARK(from(z0)) -> c6(A__FROM(mark(z0)), MARK(z0))
   MARK(sel(z0, z1)) -> c7(A__SEL(mark(z0), mark(z1)), MARK(z0))
   MARK(sel(z0, z1)) -> c8(A__SEL(mark(z0), mark(z1)), MARK(z1))
   MARK(cons(z0, z1)) -> c9(MARK(z0))
   MARK(s(z0)) -> c10(MARK(z0))
   MARK(0) -> c11
K tuples:none
Defined Rule Symbols:   a__from_1, a__sel_2, mark_1

Defined Pair Symbols:   A__FROM_1, A__SEL_2, MARK_1

Compound Symbols:   c_1, c1, c2_1, c3_2, c4_2, c5, c6_2, c7_2, c8_2, c9_1, c10_1, c11


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

(35) CdtLeafRemovalProof (BOTH BOUNDS(ID, ID))
Removed 3 trailing nodes:
   A__FROM(z0) -> c1
   A__SEL(z0, z1) -> c5
   MARK(0) -> c11

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

(36)
Obligation:
Complexity Dependency Tuples Problem

Rules:
   a__from(z0) -> cons(mark(z0), from(s(z0)))
   a__from(z0) -> from(z0)
   a__sel(0, cons(z0, z1)) -> mark(z0)
   a__sel(s(z0), cons(z1, z2)) -> a__sel(mark(z0), mark(z2))
   a__sel(z0, z1) -> sel(z0, z1)
   mark(from(z0)) -> a__from(mark(z0))
   mark(sel(z0, z1)) -> a__sel(mark(z0), mark(z1))
   mark(cons(z0, z1)) -> cons(mark(z0), z1)
   mark(s(z0)) -> s(mark(z0))
   mark(0) -> 0
Tuples:
   A__FROM(z0) -> c(MARK(z0))
   A__SEL(0, cons(z0, z1)) -> c2(MARK(z0))
   A__SEL(s(z0), cons(z1, z2)) -> c3(A__SEL(mark(z0), mark(z2)), MARK(z0))
   A__SEL(s(z0), cons(z1, z2)) -> c4(A__SEL(mark(z0), mark(z2)), MARK(z2))
   MARK(from(z0)) -> c6(A__FROM(mark(z0)), MARK(z0))
   MARK(sel(z0, z1)) -> c7(A__SEL(mark(z0), mark(z1)), MARK(z0))
   MARK(sel(z0, z1)) -> c8(A__SEL(mark(z0), mark(z1)), MARK(z1))
   MARK(cons(z0, z1)) -> c9(MARK(z0))
   MARK(s(z0)) -> c10(MARK(z0))
S tuples:
   A__FROM(z0) -> c(MARK(z0))
   A__SEL(0, cons(z0, z1)) -> c2(MARK(z0))
   A__SEL(s(z0), cons(z1, z2)) -> c3(A__SEL(mark(z0), mark(z2)), MARK(z0))
   A__SEL(s(z0), cons(z1, z2)) -> c4(A__SEL(mark(z0), mark(z2)), MARK(z2))
   MARK(from(z0)) -> c6(A__FROM(mark(z0)), MARK(z0))
   MARK(sel(z0, z1)) -> c7(A__SEL(mark(z0), mark(z1)), MARK(z0))
   MARK(sel(z0, z1)) -> c8(A__SEL(mark(z0), mark(z1)), MARK(z1))
   MARK(cons(z0, z1)) -> c9(MARK(z0))
   MARK(s(z0)) -> c10(MARK(z0))
K tuples:none
Defined Rule Symbols:   a__from_1, a__sel_2, mark_1

Defined Pair Symbols:   A__FROM_1, A__SEL_2, MARK_1

Compound Symbols:   c_1, c2_1, c3_2, c4_2, c6_2, c7_2, c8_2, c9_1, c10_1


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

(37) CdtToCpxRelTrsProof (BOTH BOUNDS(ID, ID))
Converted S to standard rules, and D \ S as well as R to relative rules.
----------------------------------------

(38)
Obligation:
The Runtime Complexity (innermost) of the given CpxRelTRS could be proven to be BOUNDS(1, INF).


The TRS R consists of the following rules:

   A__FROM(z0) -> c(MARK(z0))
   A__SEL(0, cons(z0, z1)) -> c2(MARK(z0))
   A__SEL(s(z0), cons(z1, z2)) -> c3(A__SEL(mark(z0), mark(z2)), MARK(z0))
   A__SEL(s(z0), cons(z1, z2)) -> c4(A__SEL(mark(z0), mark(z2)), MARK(z2))
   MARK(from(z0)) -> c6(A__FROM(mark(z0)), MARK(z0))
   MARK(sel(z0, z1)) -> c7(A__SEL(mark(z0), mark(z1)), MARK(z0))
   MARK(sel(z0, z1)) -> c8(A__SEL(mark(z0), mark(z1)), MARK(z1))
   MARK(cons(z0, z1)) -> c9(MARK(z0))
   MARK(s(z0)) -> c10(MARK(z0))

The (relative) TRS S consists of the following rules:

   a__from(z0) -> cons(mark(z0), from(s(z0)))
   a__from(z0) -> from(z0)
   a__sel(0, cons(z0, z1)) -> mark(z0)
   a__sel(s(z0), cons(z1, z2)) -> a__sel(mark(z0), mark(z2))
   a__sel(z0, z1) -> sel(z0, z1)
   mark(from(z0)) -> a__from(mark(z0))
   mark(sel(z0, z1)) -> a__sel(mark(z0), mark(z1))
   mark(cons(z0, z1)) -> cons(mark(z0), z1)
   mark(s(z0)) -> s(mark(z0))
   mark(0) -> 0

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

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

(40)
Obligation:
The Runtime Complexity (innermost) of the given CpxTRS could be proven to be BOUNDS(1, INF).


The TRS R consists of the following rules:

   A__FROM(z0) -> c(MARK(z0))
   A__SEL(0, cons(z0, z1)) -> c2(MARK(z0))
   A__SEL(s(z0), cons(z1, z2)) -> c3(A__SEL(mark(z0), mark(z2)), MARK(z0))
   A__SEL(s(z0), cons(z1, z2)) -> c4(A__SEL(mark(z0), mark(z2)), MARK(z2))
   MARK(from(z0)) -> c6(A__FROM(mark(z0)), MARK(z0))
   MARK(sel(z0, z1)) -> c7(A__SEL(mark(z0), mark(z1)), MARK(z0))
   MARK(sel(z0, z1)) -> c8(A__SEL(mark(z0), mark(z1)), MARK(z1))
   MARK(cons(z0, z1)) -> c9(MARK(z0))
   MARK(s(z0)) -> c10(MARK(z0))
   a__from(z0) -> cons(mark(z0), from(s(z0)))
   a__from(z0) -> from(z0)
   a__sel(0, cons(z0, z1)) -> mark(z0)
   a__sel(s(z0), cons(z1, z2)) -> a__sel(mark(z0), mark(z2))
   a__sel(z0, z1) -> sel(z0, z1)
   mark(from(z0)) -> a__from(mark(z0))
   mark(sel(z0, z1)) -> a__sel(mark(z0), mark(z1))
   mark(cons(z0, z1)) -> cons(mark(z0), z1)
   mark(s(z0)) -> s(mark(z0))
   mark(0) -> 0

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

(41) RelTrsToWeightedTrsProof (BOTH BOUNDS(ID, ID))
Transformed relative TRS to weighted TRS
----------------------------------------

(42)
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__FROM(z0) -> c(MARK(z0)) [1]
   A__SEL(0, cons(z0, z1)) -> c2(MARK(z0)) [1]
   A__SEL(s(z0), cons(z1, z2)) -> c3(A__SEL(mark(z0), mark(z2)), MARK(z0)) [1]
   A__SEL(s(z0), cons(z1, z2)) -> c4(A__SEL(mark(z0), mark(z2)), MARK(z2)) [1]
   MARK(from(z0)) -> c6(A__FROM(mark(z0)), MARK(z0)) [1]
   MARK(sel(z0, z1)) -> c7(A__SEL(mark(z0), mark(z1)), MARK(z0)) [1]
   MARK(sel(z0, z1)) -> c8(A__SEL(mark(z0), mark(z1)), MARK(z1)) [1]
   MARK(cons(z0, z1)) -> c9(MARK(z0)) [1]
   MARK(s(z0)) -> c10(MARK(z0)) [1]
   a__from(z0) -> cons(mark(z0), from(s(z0))) [0]
   a__from(z0) -> from(z0) [0]
   a__sel(0, cons(z0, z1)) -> mark(z0) [0]
   a__sel(s(z0), cons(z1, z2)) -> a__sel(mark(z0), mark(z2)) [0]
   a__sel(z0, z1) -> sel(z0, z1) [0]
   mark(from(z0)) -> a__from(mark(z0)) [0]
   mark(sel(z0, z1)) -> a__sel(mark(z0), mark(z1)) [0]
   mark(cons(z0, z1)) -> cons(mark(z0), z1) [0]
   mark(s(z0)) -> s(mark(z0)) [0]
   mark(0) -> 0 [0]

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

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

(44)
Obligation:
Runtime Complexity Weighted TRS with Types.
The TRS R consists of the following rules:

   A__FROM(z0) -> c(MARK(z0)) [1]
   A__SEL(0, cons(z0, z1)) -> c2(MARK(z0)) [1]
   A__SEL(s(z0), cons(z1, z2)) -> c3(A__SEL(mark(z0), mark(z2)), MARK(z0)) [1]
   A__SEL(s(z0), cons(z1, z2)) -> c4(A__SEL(mark(z0), mark(z2)), MARK(z2)) [1]
   MARK(from(z0)) -> c6(A__FROM(mark(z0)), MARK(z0)) [1]
   MARK(sel(z0, z1)) -> c7(A__SEL(mark(z0), mark(z1)), MARK(z0)) [1]
   MARK(sel(z0, z1)) -> c8(A__SEL(mark(z0), mark(z1)), MARK(z1)) [1]
   MARK(cons(z0, z1)) -> c9(MARK(z0)) [1]
   MARK(s(z0)) -> c10(MARK(z0)) [1]
   a__from(z0) -> cons(mark(z0), from(s(z0))) [0]
   a__from(z0) -> from(z0) [0]
   a__sel(0, cons(z0, z1)) -> mark(z0) [0]
   a__sel(s(z0), cons(z1, z2)) -> a__sel(mark(z0), mark(z2)) [0]
   a__sel(z0, z1) -> sel(z0, z1) [0]
   mark(from(z0)) -> a__from(mark(z0)) [0]
   mark(sel(z0, z1)) -> a__sel(mark(z0), mark(z1)) [0]
   mark(cons(z0, z1)) -> cons(mark(z0), z1) [0]
   mark(s(z0)) -> s(mark(z0)) [0]
   mark(0) -> 0 [0]

The TRS has the following type information:
A__FROM :: 0:cons:s:from:sel -> c
c :: c6:c7:c8:c9:c10 -> c
MARK :: 0:cons:s:from:sel -> c6:c7:c8:c9:c10
A__SEL :: 0:cons:s:from:sel -> 0:cons:s:from:sel -> c2:c3:c4
0 :: 0:cons:s:from:sel
cons :: 0:cons:s:from:sel -> 0:cons:s:from:sel -> 0:cons:s:from:sel
c2 :: c6:c7:c8:c9:c10 -> c2:c3:c4
s :: 0:cons:s:from:sel -> 0:cons:s:from:sel
c3 :: c2:c3:c4 -> c6:c7:c8:c9:c10 -> c2:c3:c4
mark :: 0:cons:s:from:sel -> 0:cons:s:from:sel
c4 :: c2:c3:c4 -> c6:c7:c8:c9:c10 -> c2:c3:c4
from :: 0:cons:s:from:sel -> 0:cons:s:from:sel
c6 :: c -> c6:c7:c8:c9:c10 -> c6:c7:c8:c9:c10
sel :: 0:cons:s:from:sel -> 0:cons:s:from:sel -> 0:cons:s:from:sel
c7 :: c2:c3:c4 -> c6:c7:c8:c9:c10 -> c6:c7:c8:c9:c10
c8 :: c2:c3:c4 -> c6:c7:c8:c9:c10 -> c6:c7:c8:c9:c10
c9 :: c6:c7:c8:c9:c10 -> c6:c7:c8:c9:c10
c10 :: c6:c7:c8:c9:c10 -> c6:c7:c8:c9:c10
a__from :: 0:cons:s:from:sel -> 0:cons:s:from:sel
a__sel :: 0:cons:s:from:sel -> 0:cons:s:from:sel -> 0:cons:s:from:sel

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

(45) 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:

   A__FROM_1
   A__SEL_2
   MARK_1

(c) The following functions are completely defined:

   a__from_1
   a__sel_2
   mark_1

Due to the following rules being added:

   a__from(v0) -> 0 [0]
   a__sel(v0, v1) -> 0 [0]
   mark(v0) -> 0 [0]

And the following fresh constants:    const, const1, const2

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

(46)
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__FROM(z0) -> c(MARK(z0)) [1]
   A__SEL(0, cons(z0, z1)) -> c2(MARK(z0)) [1]
   A__SEL(s(z0), cons(z1, z2)) -> c3(A__SEL(mark(z0), mark(z2)), MARK(z0)) [1]
   A__SEL(s(z0), cons(z1, z2)) -> c4(A__SEL(mark(z0), mark(z2)), MARK(z2)) [1]
   MARK(from(z0)) -> c6(A__FROM(mark(z0)), MARK(z0)) [1]
   MARK(sel(z0, z1)) -> c7(A__SEL(mark(z0), mark(z1)), MARK(z0)) [1]
   MARK(sel(z0, z1)) -> c8(A__SEL(mark(z0), mark(z1)), MARK(z1)) [1]
   MARK(cons(z0, z1)) -> c9(MARK(z0)) [1]
   MARK(s(z0)) -> c10(MARK(z0)) [1]
   a__from(z0) -> cons(mark(z0), from(s(z0))) [0]
   a__from(z0) -> from(z0) [0]
   a__sel(0, cons(z0, z1)) -> mark(z0) [0]
   a__sel(s(z0), cons(z1, z2)) -> a__sel(mark(z0), mark(z2)) [0]
   a__sel(z0, z1) -> sel(z0, z1) [0]
   mark(from(z0)) -> a__from(mark(z0)) [0]
   mark(sel(z0, z1)) -> a__sel(mark(z0), mark(z1)) [0]
   mark(cons(z0, z1)) -> cons(mark(z0), z1) [0]
   mark(s(z0)) -> s(mark(z0)) [0]
   mark(0) -> 0 [0]
   a__from(v0) -> 0 [0]
   a__sel(v0, v1) -> 0 [0]
   mark(v0) -> 0 [0]

The TRS has the following type information:
A__FROM :: 0:cons:s:from:sel -> c
c :: c6:c7:c8:c9:c10 -> c
MARK :: 0:cons:s:from:sel -> c6:c7:c8:c9:c10
A__SEL :: 0:cons:s:from:sel -> 0:cons:s:from:sel -> c2:c3:c4
0 :: 0:cons:s:from:sel
cons :: 0:cons:s:from:sel -> 0:cons:s:from:sel -> 0:cons:s:from:sel
c2 :: c6:c7:c8:c9:c10 -> c2:c3:c4
s :: 0:cons:s:from:sel -> 0:cons:s:from:sel
c3 :: c2:c3:c4 -> c6:c7:c8:c9:c10 -> c2:c3:c4
mark :: 0:cons:s:from:sel -> 0:cons:s:from:sel
c4 :: c2:c3:c4 -> c6:c7:c8:c9:c10 -> c2:c3:c4
from :: 0:cons:s:from:sel -> 0:cons:s:from:sel
c6 :: c -> c6:c7:c8:c9:c10 -> c6:c7:c8:c9:c10
sel :: 0:cons:s:from:sel -> 0:cons:s:from:sel -> 0:cons:s:from:sel
c7 :: c2:c3:c4 -> c6:c7:c8:c9:c10 -> c6:c7:c8:c9:c10
c8 :: c2:c3:c4 -> c6:c7:c8:c9:c10 -> c6:c7:c8:c9:c10
c9 :: c6:c7:c8:c9:c10 -> c6:c7:c8:c9:c10
c10 :: c6:c7:c8:c9:c10 -> c6:c7:c8:c9:c10
a__from :: 0:cons:s:from:sel -> 0:cons:s:from:sel
a__sel :: 0:cons:s:from:sel -> 0:cons:s:from:sel -> 0:cons:s:from:sel
const :: c
const1 :: c6:c7:c8:c9:c10
const2 :: c2:c3:c4

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

(47) NarrowingProof (BOTH BOUNDS(ID, ID))
Narrowed the inner basic terms of all right-hand sides by a single narrowing step.
----------------------------------------

(48)
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__FROM(z0) -> c(MARK(z0)) [1]
   A__SEL(0, cons(z0, z1)) -> c2(MARK(z0)) [1]
   A__SEL(s(z0), cons(z1, z2)) -> c3(A__SEL(mark(z0), mark(z2)), MARK(z0)) [1]
   A__SEL(s(z0), cons(z1, z2)) -> c4(A__SEL(mark(z0), mark(z2)), MARK(z2)) [1]
   MARK(from(from(z055))) -> c6(A__FROM(a__from(mark(z055))), MARK(from(z055))) [1]
   MARK(from(sel(z056, z127))) -> c6(A__FROM(a__sel(mark(z056), mark(z127))), MARK(sel(z056, z127))) [1]
   MARK(from(cons(z057, z128))) -> c6(A__FROM(cons(mark(z057), z128)), MARK(cons(z057, z128))) [1]
   MARK(from(s(z058))) -> c6(A__FROM(s(mark(z058))), MARK(s(z058))) [1]
   MARK(from(0)) -> c6(A__FROM(0), MARK(0)) [1]
   MARK(from(z0)) -> c6(A__FROM(0), MARK(z0)) [1]
   MARK(sel(z0, z1)) -> c7(A__SEL(mark(z0), mark(z1)), MARK(z0)) [1]
   MARK(sel(z0, z1)) -> c8(A__SEL(mark(z0), mark(z1)), MARK(z1)) [1]
   MARK(cons(z0, z1)) -> c9(MARK(z0)) [1]
   MARK(s(z0)) -> c10(MARK(z0)) [1]
   a__from(z0) -> cons(mark(z0), from(s(z0))) [0]
   a__from(z0) -> from(z0) [0]
   a__sel(0, cons(z0, z1)) -> mark(z0) [0]
   a__sel(s(z0), cons(z1, z2)) -> a__sel(mark(z0), mark(z2)) [0]
   a__sel(z0, z1) -> sel(z0, z1) [0]
   mark(from(from(z0143))) -> a__from(a__from(mark(z0143))) [0]
   mark(from(sel(z0144, z171))) -> a__from(a__sel(mark(z0144), mark(z171))) [0]
   mark(from(cons(z0145, z172))) -> a__from(cons(mark(z0145), z172)) [0]
   mark(from(s(z0146))) -> a__from(s(mark(z0146))) [0]
   mark(from(0)) -> a__from(0) [0]
   mark(from(z0)) -> a__from(0) [0]
   mark(sel(z0, z1)) -> a__sel(mark(z0), mark(z1)) [0]
   mark(cons(z0, z1)) -> cons(mark(z0), z1) [0]
   mark(s(z0)) -> s(mark(z0)) [0]
   mark(0) -> 0 [0]
   a__from(v0) -> 0 [0]
   a__sel(v0, v1) -> 0 [0]
   mark(v0) -> 0 [0]

The TRS has the following type information:
A__FROM :: 0:cons:s:from:sel -> c
c :: c6:c7:c8:c9:c10 -> c
MARK :: 0:cons:s:from:sel -> c6:c7:c8:c9:c10
A__SEL :: 0:cons:s:from:sel -> 0:cons:s:from:sel -> c2:c3:c4
0 :: 0:cons:s:from:sel
cons :: 0:cons:s:from:sel -> 0:cons:s:from:sel -> 0:cons:s:from:sel
c2 :: c6:c7:c8:c9:c10 -> c2:c3:c4
s :: 0:cons:s:from:sel -> 0:cons:s:from:sel
c3 :: c2:c3:c4 -> c6:c7:c8:c9:c10 -> c2:c3:c4
mark :: 0:cons:s:from:sel -> 0:cons:s:from:sel
c4 :: c2:c3:c4 -> c6:c7:c8:c9:c10 -> c2:c3:c4
from :: 0:cons:s:from:sel -> 0:cons:s:from:sel
c6 :: c -> c6:c7:c8:c9:c10 -> c6:c7:c8:c9:c10
sel :: 0:cons:s:from:sel -> 0:cons:s:from:sel -> 0:cons:s:from:sel
c7 :: c2:c3:c4 -> c6:c7:c8:c9:c10 -> c6:c7:c8:c9:c10
c8 :: c2:c3:c4 -> c6:c7:c8:c9:c10 -> c6:c7:c8:c9:c10
c9 :: c6:c7:c8:c9:c10 -> c6:c7:c8:c9:c10
c10 :: c6:c7:c8:c9:c10 -> c6:c7:c8:c9:c10
a__from :: 0:cons:s:from:sel -> 0:cons:s:from:sel
a__sel :: 0:cons:s:from:sel -> 0:cons:s:from:sel -> 0:cons:s:from:sel
const :: c
const1 :: c6:c7:c8:c9:c10
const2 :: c2:c3:c4

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

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

   0 => 0
   const => 0
   const1 => 0
   const2 => 0

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

(50)
Obligation:
Complexity RNTS consisting of the following rules:

   A__FROM(z) -{ 1 }-> 1 + MARK(z0) :|: z = z0, z0 >= 0
   A__SEL(z, z') -{ 1 }-> 1 + MARK(z0) :|: z' = 1 + z0 + z1, z1 >= 0, z0 >= 0, z = 0
   A__SEL(z, z') -{ 1 }-> 1 + A__SEL(mark(z0), mark(z2)) + MARK(z0) :|: z1 >= 0, z' = 1 + z1 + z2, z = 1 + z0, z0 >= 0, z2 >= 0
   A__SEL(z, z') -{ 1 }-> 1 + A__SEL(mark(z0), mark(z2)) + MARK(z2) :|: z1 >= 0, z' = 1 + z1 + z2, z = 1 + z0, z0 >= 0, z2 >= 0
   MARK(z) -{ 1 }-> 1 + MARK(z0) :|: z1 >= 0, z0 >= 0, z = 1 + z0 + z1
   MARK(z) -{ 1 }-> 1 + MARK(z0) :|: z = 1 + z0, z0 >= 0
   MARK(z) -{ 1 }-> 1 + A__SEL(mark(z0), mark(z1)) + MARK(z0) :|: z1 >= 0, z0 >= 0, z = 1 + z0 + z1
   MARK(z) -{ 1 }-> 1 + A__SEL(mark(z0), mark(z1)) + MARK(z1) :|: z1 >= 0, z0 >= 0, z = 1 + z0 + z1
   MARK(z) -{ 1 }-> 1 + A__FROM(a__sel(mark(z056), mark(z127))) + MARK(1 + z056 + z127) :|: z056 >= 0, z = 1 + (1 + z056 + z127), z127 >= 0
   MARK(z) -{ 1 }-> 1 + A__FROM(a__from(mark(z055))) + MARK(1 + z055) :|: z = 1 + (1 + z055), z055 >= 0
   MARK(z) -{ 1 }-> 1 + A__FROM(0) + MARK(z0) :|: z = 1 + z0, z0 >= 0
   MARK(z) -{ 1 }-> 1 + A__FROM(0) + MARK(0) :|: z = 1 + 0
   MARK(z) -{ 1 }-> 1 + A__FROM(1 + mark(z058)) + MARK(1 + z058) :|: z = 1 + (1 + z058), z058 >= 0
   MARK(z) -{ 1 }-> 1 + A__FROM(1 + mark(z057) + z128) + MARK(1 + z057 + z128) :|: z = 1 + (1 + z057 + z128), z128 >= 0, z057 >= 0
   a__from(z) -{ 0 }-> 0 :|: v0 >= 0, z = v0
   a__from(z) -{ 0 }-> 1 + z0 :|: z = z0, z0 >= 0
   a__from(z) -{ 0 }-> 1 + mark(z0) + (1 + (1 + z0)) :|: z = z0, z0 >= 0
   a__sel(z, z') -{ 0 }-> mark(z0) :|: z' = 1 + z0 + z1, z1 >= 0, z0 >= 0, z = 0
   a__sel(z, z') -{ 0 }-> a__sel(mark(z0), mark(z2)) :|: z1 >= 0, z' = 1 + z1 + z2, z = 1 + z0, z0 >= 0, z2 >= 0
   a__sel(z, z') -{ 0 }-> 0 :|: v0 >= 0, v1 >= 0, z = v0, z' = v1
   a__sel(z, z') -{ 0 }-> 1 + z0 + z1 :|: z = z0, z1 >= 0, z' = z1, z0 >= 0
   mark(z) -{ 0 }-> a__sel(mark(z0), mark(z1)) :|: z1 >= 0, z0 >= 0, z = 1 + z0 + z1
   mark(z) -{ 0 }-> a__from(a__sel(mark(z0144), mark(z171))) :|: z171 >= 0, z0144 >= 0, z = 1 + (1 + z0144 + z171)
   mark(z) -{ 0 }-> a__from(a__from(mark(z0143))) :|: z0143 >= 0, z = 1 + (1 + z0143)
   mark(z) -{ 0 }-> a__from(0) :|: z = 1 + 0
   mark(z) -{ 0 }-> a__from(0) :|: z = 1 + z0, z0 >= 0
   mark(z) -{ 0 }-> a__from(1 + mark(z0146)) :|: z0146 >= 0, z = 1 + (1 + z0146)
   mark(z) -{ 0 }-> a__from(1 + mark(z0145) + z172) :|: z = 1 + (1 + z0145 + z172), z172 >= 0, z0145 >= 0
   mark(z) -{ 0 }-> 0 :|: z = 0
   mark(z) -{ 0 }-> 0 :|: v0 >= 0, z = v0
   mark(z) -{ 0 }-> 1 + mark(z0) :|: z = 1 + z0, z0 >= 0
   mark(z) -{ 0 }-> 1 + mark(z0) + z1 :|: z1 >= 0, z0 >= 0, z = 1 + z0 + z1


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

(51) SimplificationProof (BOTH BOUNDS(ID, ID))
Simplified the RNTS by moving equalities from the constraints into the right-hand sides.
----------------------------------------

(52)
Obligation:
Complexity RNTS consisting of the following rules:

   A__FROM(z) -{ 1 }-> 1 + MARK(z) :|: z >= 0
   A__SEL(z, z') -{ 1 }-> 1 + MARK(z0) :|: z' = 1 + z0 + z1, z1 >= 0, z0 >= 0, z = 0
   A__SEL(z, z') -{ 1 }-> 1 + A__SEL(mark(z - 1), mark(z2)) + MARK(z2) :|: z1 >= 0, z' = 1 + z1 + z2, z - 1 >= 0, z2 >= 0
   A__SEL(z, z') -{ 1 }-> 1 + A__SEL(mark(z - 1), mark(z2)) + MARK(z - 1) :|: z1 >= 0, z' = 1 + z1 + z2, z - 1 >= 0, z2 >= 0
   MARK(z) -{ 1 }-> 1 + MARK(z0) :|: z1 >= 0, z0 >= 0, z = 1 + z0 + z1
   MARK(z) -{ 1 }-> 1 + MARK(z - 1) :|: z - 1 >= 0
   MARK(z) -{ 1 }-> 1 + A__SEL(mark(z0), mark(z1)) + MARK(z0) :|: z1 >= 0, z0 >= 0, z = 1 + z0 + z1
   MARK(z) -{ 1 }-> 1 + A__SEL(mark(z0), mark(z1)) + MARK(z1) :|: z1 >= 0, z0 >= 0, z = 1 + z0 + z1
   MARK(z) -{ 1 }-> 1 + A__FROM(a__sel(mark(z056), mark(z127))) + MARK(1 + z056 + z127) :|: z056 >= 0, z = 1 + (1 + z056 + z127), z127 >= 0
   MARK(z) -{ 1 }-> 1 + A__FROM(a__from(mark(z - 2))) + MARK(1 + (z - 2)) :|: z - 2 >= 0
   MARK(z) -{ 1 }-> 1 + A__FROM(0) + MARK(0) :|: z = 1 + 0
   MARK(z) -{ 1 }-> 1 + A__FROM(0) + MARK(z - 1) :|: z - 1 >= 0
   MARK(z) -{ 1 }-> 1 + A__FROM(1 + mark(z - 2)) + MARK(1 + (z - 2)) :|: z - 2 >= 0
   MARK(z) -{ 1 }-> 1 + A__FROM(1 + mark(z057) + z128) + MARK(1 + z057 + z128) :|: z = 1 + (1 + z057 + z128), z128 >= 0, z057 >= 0
   a__from(z) -{ 0 }-> 0 :|: z >= 0
   a__from(z) -{ 0 }-> 1 + z :|: z >= 0
   a__from(z) -{ 0 }-> 1 + mark(z) + (1 + (1 + z)) :|: z >= 0
   a__sel(z, z') -{ 0 }-> mark(z0) :|: z' = 1 + z0 + z1, z1 >= 0, z0 >= 0, z = 0
   a__sel(z, z') -{ 0 }-> a__sel(mark(z - 1), mark(z2)) :|: z1 >= 0, z' = 1 + z1 + z2, z - 1 >= 0, z2 >= 0
   a__sel(z, z') -{ 0 }-> 0 :|: z >= 0, z' >= 0
   a__sel(z, z') -{ 0 }-> 1 + z + z' :|: z' >= 0, z >= 0
   mark(z) -{ 0 }-> a__sel(mark(z0), mark(z1)) :|: z1 >= 0, z0 >= 0, z = 1 + z0 + z1
   mark(z) -{ 0 }-> a__from(a__sel(mark(z0144), mark(z171))) :|: z171 >= 0, z0144 >= 0, z = 1 + (1 + z0144 + z171)
   mark(z) -{ 0 }-> a__from(a__from(mark(z - 2))) :|: z - 2 >= 0
   mark(z) -{ 0 }-> a__from(0) :|: z = 1 + 0
   mark(z) -{ 0 }-> a__from(0) :|: z - 1 >= 0
   mark(z) -{ 0 }-> a__from(1 + mark(z - 2)) :|: z - 2 >= 0
   mark(z) -{ 0 }-> a__from(1 + mark(z0145) + z172) :|: z = 1 + (1 + z0145 + z172), z172 >= 0, z0145 >= 0
   mark(z) -{ 0 }-> 0 :|: z = 0
   mark(z) -{ 0 }-> 0 :|: z >= 0
   mark(z) -{ 0 }-> 1 + mark(z - 1) :|: z - 1 >= 0
   mark(z) -{ 0 }-> 1 + mark(z0) + z1 :|: z1 >= 0, z0 >= 0, z = 1 + z0 + z1


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

(53) 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:

   a__from(v0) -> null_a__from [0]
   a__sel(v0, v1) -> null_a__sel [0]
   mark(v0) -> null_mark [0]
   A__SEL(v0, v1) -> null_A__SEL [0]
   MARK(v0) -> null_MARK [0]

And the following fresh constants:    null_a__from, null_a__sel, null_mark, null_A__SEL, null_MARK, const

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

(54)
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__FROM(z0) -> c(MARK(z0)) [1]
   A__SEL(0, cons(z0, z1)) -> c2(MARK(z0)) [1]
   A__SEL(s(z0), cons(z1, z2)) -> c3(A__SEL(mark(z0), mark(z2)), MARK(z0)) [1]
   A__SEL(s(z0), cons(z1, z2)) -> c4(A__SEL(mark(z0), mark(z2)), MARK(z2)) [1]
   MARK(from(z0)) -> c6(A__FROM(mark(z0)), MARK(z0)) [1]
   MARK(sel(z0, z1)) -> c7(A__SEL(mark(z0), mark(z1)), MARK(z0)) [1]
   MARK(sel(z0, z1)) -> c8(A__SEL(mark(z0), mark(z1)), MARK(z1)) [1]
   MARK(cons(z0, z1)) -> c9(MARK(z0)) [1]
   MARK(s(z0)) -> c10(MARK(z0)) [1]
   a__from(z0) -> cons(mark(z0), from(s(z0))) [0]
   a__from(z0) -> from(z0) [0]
   a__sel(0, cons(z0, z1)) -> mark(z0) [0]
   a__sel(s(z0), cons(z1, z2)) -> a__sel(mark(z0), mark(z2)) [0]
   a__sel(z0, z1) -> sel(z0, z1) [0]
   mark(from(z0)) -> a__from(mark(z0)) [0]
   mark(sel(z0, z1)) -> a__sel(mark(z0), mark(z1)) [0]
   mark(cons(z0, z1)) -> cons(mark(z0), z1) [0]
   mark(s(z0)) -> s(mark(z0)) [0]
   mark(0) -> 0 [0]
   a__from(v0) -> null_a__from [0]
   a__sel(v0, v1) -> null_a__sel [0]
   mark(v0) -> null_mark [0]
   A__SEL(v0, v1) -> null_A__SEL [0]
   MARK(v0) -> null_MARK [0]

The TRS has the following type information:
A__FROM :: 0:cons:s:from:sel:null_a__from:null_a__sel:null_mark -> c
c :: c6:c7:c8:c9:c10:null_MARK -> c
MARK :: 0:cons:s:from:sel:null_a__from:null_a__sel:null_mark -> c6:c7:c8:c9:c10:null_MARK
A__SEL :: 0:cons:s:from:sel:null_a__from:null_a__sel:null_mark -> 0:cons:s:from:sel:null_a__from:null_a__sel:null_mark -> c2:c3:c4:null_A__SEL
0 :: 0:cons:s:from:sel:null_a__from:null_a__sel:null_mark
cons :: 0:cons:s:from:sel:null_a__from:null_a__sel:null_mark -> 0:cons:s:from:sel:null_a__from:null_a__sel:null_mark -> 0:cons:s:from:sel:null_a__from:null_a__sel:null_mark
c2 :: c6:c7:c8:c9:c10:null_MARK -> c2:c3:c4:null_A__SEL
s :: 0:cons:s:from:sel:null_a__from:null_a__sel:null_mark -> 0:cons:s:from:sel:null_a__from:null_a__sel:null_mark
c3 :: c2:c3:c4:null_A__SEL -> c6:c7:c8:c9:c10:null_MARK -> c2:c3:c4:null_A__SEL
mark :: 0:cons:s:from:sel:null_a__from:null_a__sel:null_mark -> 0:cons:s:from:sel:null_a__from:null_a__sel:null_mark
c4 :: c2:c3:c4:null_A__SEL -> c6:c7:c8:c9:c10:null_MARK -> c2:c3:c4:null_A__SEL
from :: 0:cons:s:from:sel:null_a__from:null_a__sel:null_mark -> 0:cons:s:from:sel:null_a__from:null_a__sel:null_mark
c6 :: c -> c6:c7:c8:c9:c10:null_MARK -> c6:c7:c8:c9:c10:null_MARK
sel :: 0:cons:s:from:sel:null_a__from:null_a__sel:null_mark -> 0:cons:s:from:sel:null_a__from:null_a__sel:null_mark -> 0:cons:s:from:sel:null_a__from:null_a__sel:null_mark
c7 :: c2:c3:c4:null_A__SEL -> c6:c7:c8:c9:c10:null_MARK -> c6:c7:c8:c9:c10:null_MARK
c8 :: c2:c3:c4:null_A__SEL -> c6:c7:c8:c9:c10:null_MARK -> c6:c7:c8:c9:c10:null_MARK
c9 :: c6:c7:c8:c9:c10:null_MARK -> c6:c7:c8:c9:c10:null_MARK
c10 :: c6:c7:c8:c9:c10:null_MARK -> c6:c7:c8:c9:c10:null_MARK
a__from :: 0:cons:s:from:sel:null_a__from:null_a__sel:null_mark -> 0:cons:s:from:sel:null_a__from:null_a__sel:null_mark
a__sel :: 0:cons:s:from:sel:null_a__from:null_a__sel:null_mark -> 0:cons:s:from:sel:null_a__from:null_a__sel:null_mark -> 0:cons:s:from:sel:null_a__from:null_a__sel:null_mark
null_a__from :: 0:cons:s:from:sel:null_a__from:null_a__sel:null_mark
null_a__sel :: 0:cons:s:from:sel:null_a__from:null_a__sel:null_mark
null_mark :: 0:cons:s:from:sel:null_a__from:null_a__sel:null_mark
null_A__SEL :: c2:c3:c4:null_A__SEL
null_MARK :: c6:c7:c8:c9:c10:null_MARK
const :: c

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

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

   0 => 0
   null_a__from => 0
   null_a__sel => 0
   null_mark => 0
   null_A__SEL => 0
   null_MARK => 0
   const => 0

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

(56)
Obligation:
Complexity RNTS consisting of the following rules:

   A__FROM(z) -{ 1 }-> 1 + MARK(z0) :|: z = z0, z0 >= 0
   A__SEL(z, z') -{ 0 }-> 0 :|: v0 >= 0, v1 >= 0, z = v0, z' = v1
   A__SEL(z, z') -{ 1 }-> 1 + MARK(z0) :|: z' = 1 + z0 + z1, z1 >= 0, z0 >= 0, z = 0
   A__SEL(z, z') -{ 1 }-> 1 + A__SEL(mark(z0), mark(z2)) + MARK(z0) :|: z1 >= 0, z' = 1 + z1 + z2, z = 1 + z0, z0 >= 0, z2 >= 0
   A__SEL(z, z') -{ 1 }-> 1 + A__SEL(mark(z0), mark(z2)) + MARK(z2) :|: z1 >= 0, z' = 1 + z1 + z2, z = 1 + z0, z0 >= 0, z2 >= 0
   MARK(z) -{ 0 }-> 0 :|: v0 >= 0, z = v0
   MARK(z) -{ 1 }-> 1 + MARK(z0) :|: z1 >= 0, z0 >= 0, z = 1 + z0 + z1
   MARK(z) -{ 1 }-> 1 + MARK(z0) :|: z = 1 + z0, z0 >= 0
   MARK(z) -{ 1 }-> 1 + A__SEL(mark(z0), mark(z1)) + MARK(z0) :|: z1 >= 0, z0 >= 0, z = 1 + z0 + z1
   MARK(z) -{ 1 }-> 1 + A__SEL(mark(z0), mark(z1)) + MARK(z1) :|: z1 >= 0, z0 >= 0, z = 1 + z0 + z1
   MARK(z) -{ 1 }-> 1 + A__FROM(mark(z0)) + MARK(z0) :|: z = 1 + z0, z0 >= 0
   a__from(z) -{ 0 }-> 0 :|: v0 >= 0, z = v0
   a__from(z) -{ 0 }-> 1 + z0 :|: z = z0, z0 >= 0
   a__from(z) -{ 0 }-> 1 + mark(z0) + (1 + (1 + z0)) :|: z = z0, z0 >= 0
   a__sel(z, z') -{ 0 }-> mark(z0) :|: z' = 1 + z0 + z1, z1 >= 0, z0 >= 0, z = 0
   a__sel(z, z') -{ 0 }-> a__sel(mark(z0), mark(z2)) :|: z1 >= 0, z' = 1 + z1 + z2, z = 1 + z0, z0 >= 0, z2 >= 0
   a__sel(z, z') -{ 0 }-> 0 :|: v0 >= 0, v1 >= 0, z = v0, z' = v1
   a__sel(z, z') -{ 0 }-> 1 + z0 + z1 :|: z = z0, z1 >= 0, z' = z1, z0 >= 0
   mark(z) -{ 0 }-> a__sel(mark(z0), mark(z1)) :|: z1 >= 0, z0 >= 0, z = 1 + z0 + z1
   mark(z) -{ 0 }-> a__from(mark(z0)) :|: z = 1 + z0, z0 >= 0
   mark(z) -{ 0 }-> 0 :|: z = 0
   mark(z) -{ 0 }-> 0 :|: v0 >= 0, z = v0
   mark(z) -{ 0 }-> 1 + mark(z0) :|: z = 1 + z0, z0 >= 0
   mark(z) -{ 0 }-> 1 + mark(z0) + z1 :|: z1 >= 0, z0 >= 0, z = 1 + z0 + z1

Only complete derivations are relevant for the runtime complexity.

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

(57) CdtNarrowingProof (BOTH BOUNDS(ID, ID))
Use narrowing to replace A__SEL(s(z0), cons(z1, z2)) -> c3(A__SEL(mark(z0), mark(z2)), MARK(z0)) by 
   A__SEL(s(x0), cons(x1, from(z0))) -> c3(A__SEL(mark(x0), a__from(mark(z0))), MARK(x0))
   A__SEL(s(x0), cons(x1, sel(z0, z1))) -> c3(A__SEL(mark(x0), a__sel(mark(z0), mark(z1))), MARK(x0))
   A__SEL(s(x0), cons(x1, cons(z0, z1))) -> c3(A__SEL(mark(x0), cons(mark(z0), z1)), MARK(x0))
   A__SEL(s(x0), cons(x1, s(z0))) -> c3(A__SEL(mark(x0), s(mark(z0))), MARK(x0))
   A__SEL(s(x0), cons(x1, 0)) -> c3(A__SEL(mark(x0), 0), MARK(x0))
   A__SEL(s(from(z0)), cons(x1, x2)) -> c3(A__SEL(a__from(mark(z0)), mark(x2)), MARK(from(z0)))
   A__SEL(s(sel(z0, z1)), cons(x1, x2)) -> c3(A__SEL(a__sel(mark(z0), mark(z1)), mark(x2)), MARK(sel(z0, z1)))
   A__SEL(s(cons(z0, z1)), cons(x1, x2)) -> c3(A__SEL(cons(mark(z0), z1), mark(x2)), MARK(cons(z0, z1)))
   A__SEL(s(s(z0)), cons(x1, x2)) -> c3(A__SEL(s(mark(z0)), mark(x2)), MARK(s(z0)))
   A__SEL(s(0), cons(x1, x2)) -> c3(A__SEL(0, mark(x2)), MARK(0))

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

(58)
Obligation:
Complexity Dependency Tuples Problem

Rules:
   a__from(z0) -> cons(mark(z0), from(s(z0)))
   a__from(z0) -> from(z0)
   a__sel(0, cons(z0, z1)) -> mark(z0)
   a__sel(s(z0), cons(z1, z2)) -> a__sel(mark(z0), mark(z2))
   a__sel(z0, z1) -> sel(z0, z1)
   mark(from(z0)) -> a__from(mark(z0))
   mark(sel(z0, z1)) -> a__sel(mark(z0), mark(z1))
   mark(cons(z0, z1)) -> cons(mark(z0), z1)
   mark(s(z0)) -> s(mark(z0))
   mark(0) -> 0
Tuples:
   A__FROM(z0) -> c(MARK(z0))
   A__SEL(0, cons(z0, z1)) -> c2(MARK(z0))
   A__SEL(s(z0), cons(z1, z2)) -> c4(A__SEL(mark(z0), mark(z2)), MARK(z2))
   MARK(from(z0)) -> c6(A__FROM(mark(z0)), MARK(z0))
   MARK(sel(z0, z1)) -> c7(A__SEL(mark(z0), mark(z1)), MARK(z0))
   MARK(sel(z0, z1)) -> c8(A__SEL(mark(z0), mark(z1)), MARK(z1))
   MARK(cons(z0, z1)) -> c9(MARK(z0))
   MARK(s(z0)) -> c10(MARK(z0))
   A__SEL(s(x0), cons(x1, from(z0))) -> c3(A__SEL(mark(x0), a__from(mark(z0))), MARK(x0))
   A__SEL(s(x0), cons(x1, sel(z0, z1))) -> c3(A__SEL(mark(x0), a__sel(mark(z0), mark(z1))), MARK(x0))
   A__SEL(s(x0), cons(x1, cons(z0, z1))) -> c3(A__SEL(mark(x0), cons(mark(z0), z1)), MARK(x0))
   A__SEL(s(x0), cons(x1, s(z0))) -> c3(A__SEL(mark(x0), s(mark(z0))), MARK(x0))
   A__SEL(s(x0), cons(x1, 0)) -> c3(A__SEL(mark(x0), 0), MARK(x0))
   A__SEL(s(from(z0)), cons(x1, x2)) -> c3(A__SEL(a__from(mark(z0)), mark(x2)), MARK(from(z0)))
   A__SEL(s(sel(z0, z1)), cons(x1, x2)) -> c3(A__SEL(a__sel(mark(z0), mark(z1)), mark(x2)), MARK(sel(z0, z1)))
   A__SEL(s(cons(z0, z1)), cons(x1, x2)) -> c3(A__SEL(cons(mark(z0), z1), mark(x2)), MARK(cons(z0, z1)))
   A__SEL(s(s(z0)), cons(x1, x2)) -> c3(A__SEL(s(mark(z0)), mark(x2)), MARK(s(z0)))
   A__SEL(s(0), cons(x1, x2)) -> c3(A__SEL(0, mark(x2)), MARK(0))
S tuples:
   A__FROM(z0) -> c(MARK(z0))
   A__SEL(0, cons(z0, z1)) -> c2(MARK(z0))
   A__SEL(s(z0), cons(z1, z2)) -> c4(A__SEL(mark(z0), mark(z2)), MARK(z2))
   MARK(from(z0)) -> c6(A__FROM(mark(z0)), MARK(z0))
   MARK(sel(z0, z1)) -> c7(A__SEL(mark(z0), mark(z1)), MARK(z0))
   MARK(sel(z0, z1)) -> c8(A__SEL(mark(z0), mark(z1)), MARK(z1))
   MARK(cons(z0, z1)) -> c9(MARK(z0))
   MARK(s(z0)) -> c10(MARK(z0))
   A__SEL(s(x0), cons(x1, from(z0))) -> c3(A__SEL(mark(x0), a__from(mark(z0))), MARK(x0))
   A__SEL(s(x0), cons(x1, sel(z0, z1))) -> c3(A__SEL(mark(x0), a__sel(mark(z0), mark(z1))), MARK(x0))
   A__SEL(s(x0), cons(x1, cons(z0, z1))) -> c3(A__SEL(mark(x0), cons(mark(z0), z1)), MARK(x0))
   A__SEL(s(x0), cons(x1, s(z0))) -> c3(A__SEL(mark(x0), s(mark(z0))), MARK(x0))
   A__SEL(s(x0), cons(x1, 0)) -> c3(A__SEL(mark(x0), 0), MARK(x0))
   A__SEL(s(from(z0)), cons(x1, x2)) -> c3(A__SEL(a__from(mark(z0)), mark(x2)), MARK(from(z0)))
   A__SEL(s(sel(z0, z1)), cons(x1, x2)) -> c3(A__SEL(a__sel(mark(z0), mark(z1)), mark(x2)), MARK(sel(z0, z1)))
   A__SEL(s(cons(z0, z1)), cons(x1, x2)) -> c3(A__SEL(cons(mark(z0), z1), mark(x2)), MARK(cons(z0, z1)))
   A__SEL(s(s(z0)), cons(x1, x2)) -> c3(A__SEL(s(mark(z0)), mark(x2)), MARK(s(z0)))
   A__SEL(s(0), cons(x1, x2)) -> c3(A__SEL(0, mark(x2)), MARK(0))
K tuples:none
Defined Rule Symbols:   a__from_1, a__sel_2, mark_1

Defined Pair Symbols:   A__FROM_1, A__SEL_2, MARK_1

Compound Symbols:   c_1, c2_1, c4_2, c6_2, c7_2, c8_2, c9_1, c10_1, c3_2


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

(59) CdtRhsSimplificationProcessorProof (BOTH BOUNDS(ID, ID))
Removed 4 trailing tuple parts
----------------------------------------

(60)
Obligation:
Complexity Dependency Tuples Problem

Rules:
   a__from(z0) -> cons(mark(z0), from(s(z0)))
   a__from(z0) -> from(z0)
   a__sel(0, cons(z0, z1)) -> mark(z0)
   a__sel(s(z0), cons(z1, z2)) -> a__sel(mark(z0), mark(z2))
   a__sel(z0, z1) -> sel(z0, z1)
   mark(from(z0)) -> a__from(mark(z0))
   mark(sel(z0, z1)) -> a__sel(mark(z0), mark(z1))
   mark(cons(z0, z1)) -> cons(mark(z0), z1)
   mark(s(z0)) -> s(mark(z0))
   mark(0) -> 0
Tuples:
   A__FROM(z0) -> c(MARK(z0))
   A__SEL(0, cons(z0, z1)) -> c2(MARK(z0))
   A__SEL(s(z0), cons(z1, z2)) -> c4(A__SEL(mark(z0), mark(z2)), MARK(z2))
   MARK(from(z0)) -> c6(A__FROM(mark(z0)), MARK(z0))
   MARK(sel(z0, z1)) -> c7(A__SEL(mark(z0), mark(z1)), MARK(z0))
   MARK(sel(z0, z1)) -> c8(A__SEL(mark(z0), mark(z1)), MARK(z1))
   MARK(cons(z0, z1)) -> c9(MARK(z0))
   MARK(s(z0)) -> c10(MARK(z0))
   A__SEL(s(x0), cons(x1, from(z0))) -> c3(A__SEL(mark(x0), a__from(mark(z0))), MARK(x0))
   A__SEL(s(x0), cons(x1, sel(z0, z1))) -> c3(A__SEL(mark(x0), a__sel(mark(z0), mark(z1))), MARK(x0))
   A__SEL(s(x0), cons(x1, cons(z0, z1))) -> c3(A__SEL(mark(x0), cons(mark(z0), z1)), MARK(x0))
   A__SEL(s(from(z0)), cons(x1, x2)) -> c3(A__SEL(a__from(mark(z0)), mark(x2)), MARK(from(z0)))
   A__SEL(s(sel(z0, z1)), cons(x1, x2)) -> c3(A__SEL(a__sel(mark(z0), mark(z1)), mark(x2)), MARK(sel(z0, z1)))
   A__SEL(s(s(z0)), cons(x1, x2)) -> c3(A__SEL(s(mark(z0)), mark(x2)), MARK(s(z0)))
   A__SEL(s(x0), cons(x1, s(z0))) -> c3(MARK(x0))
   A__SEL(s(x0), cons(x1, 0)) -> c3(MARK(x0))
   A__SEL(s(cons(z0, z1)), cons(x1, x2)) -> c3(MARK(cons(z0, z1)))
   A__SEL(s(0), cons(x1, x2)) -> c3(A__SEL(0, mark(x2)))
S tuples:
   A__FROM(z0) -> c(MARK(z0))
   A__SEL(0, cons(z0, z1)) -> c2(MARK(z0))
   A__SEL(s(z0), cons(z1, z2)) -> c4(A__SEL(mark(z0), mark(z2)), MARK(z2))
   MARK(from(z0)) -> c6(A__FROM(mark(z0)), MARK(z0))
   MARK(sel(z0, z1)) -> c7(A__SEL(mark(z0), mark(z1)), MARK(z0))
   MARK(sel(z0, z1)) -> c8(A__SEL(mark(z0), mark(z1)), MARK(z1))
   MARK(cons(z0, z1)) -> c9(MARK(z0))
   MARK(s(z0)) -> c10(MARK(z0))
   A__SEL(s(x0), cons(x1, from(z0))) -> c3(A__SEL(mark(x0), a__from(mark(z0))), MARK(x0))
   A__SEL(s(x0), cons(x1, sel(z0, z1))) -> c3(A__SEL(mark(x0), a__sel(mark(z0), mark(z1))), MARK(x0))
   A__SEL(s(x0), cons(x1, cons(z0, z1))) -> c3(A__SEL(mark(x0), cons(mark(z0), z1)), MARK(x0))
   A__SEL(s(from(z0)), cons(x1, x2)) -> c3(A__SEL(a__from(mark(z0)), mark(x2)), MARK(from(z0)))
   A__SEL(s(sel(z0, z1)), cons(x1, x2)) -> c3(A__SEL(a__sel(mark(z0), mark(z1)), mark(x2)), MARK(sel(z0, z1)))
   A__SEL(s(s(z0)), cons(x1, x2)) -> c3(A__SEL(s(mark(z0)), mark(x2)), MARK(s(z0)))
   A__SEL(s(x0), cons(x1, s(z0))) -> c3(MARK(x0))
   A__SEL(s(x0), cons(x1, 0)) -> c3(MARK(x0))
   A__SEL(s(cons(z0, z1)), cons(x1, x2)) -> c3(MARK(cons(z0, z1)))
   A__SEL(s(0), cons(x1, x2)) -> c3(A__SEL(0, mark(x2)))
K tuples:none
Defined Rule Symbols:   a__from_1, a__sel_2, mark_1

Defined Pair Symbols:   A__FROM_1, A__SEL_2, MARK_1

Compound Symbols:   c_1, c2_1, c4_2, c6_2, c7_2, c8_2, c9_1, c10_1, c3_2, c3_1


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

(61) CdtNarrowingProof (BOTH BOUNDS(ID, ID))
Use narrowing to replace A__SEL(s(z0), cons(z1, z2)) -> c4(A__SEL(mark(z0), mark(z2)), MARK(z2)) by 
   A__SEL(s(x0), cons(x1, from(z0))) -> c4(A__SEL(mark(x0), a__from(mark(z0))), MARK(from(z0)))
   A__SEL(s(x0), cons(x1, sel(z0, z1))) -> c4(A__SEL(mark(x0), a__sel(mark(z0), mark(z1))), MARK(sel(z0, z1)))
   A__SEL(s(x0), cons(x1, cons(z0, z1))) -> c4(A__SEL(mark(x0), cons(mark(z0), z1)), MARK(cons(z0, z1)))
   A__SEL(s(x0), cons(x1, s(z0))) -> c4(A__SEL(mark(x0), s(mark(z0))), MARK(s(z0)))
   A__SEL(s(x0), cons(x1, 0)) -> c4(A__SEL(mark(x0), 0), MARK(0))
   A__SEL(s(from(z0)), cons(x1, x2)) -> c4(A__SEL(a__from(mark(z0)), mark(x2)), MARK(x2))
   A__SEL(s(sel(z0, z1)), cons(x1, x2)) -> c4(A__SEL(a__sel(mark(z0), mark(z1)), mark(x2)), MARK(x2))
   A__SEL(s(cons(z0, z1)), cons(x1, x2)) -> c4(A__SEL(cons(mark(z0), z1), mark(x2)), MARK(x2))
   A__SEL(s(s(z0)), cons(x1, x2)) -> c4(A__SEL(s(mark(z0)), mark(x2)), MARK(x2))
   A__SEL(s(0), cons(x1, x2)) -> c4(A__SEL(0, mark(x2)), MARK(x2))

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

(62)
Obligation:
Complexity Dependency Tuples Problem

Rules:
   a__from(z0) -> cons(mark(z0), from(s(z0)))
   a__from(z0) -> from(z0)
   a__sel(0, cons(z0, z1)) -> mark(z0)
   a__sel(s(z0), cons(z1, z2)) -> a__sel(mark(z0), mark(z2))
   a__sel(z0, z1) -> sel(z0, z1)
   mark(from(z0)) -> a__from(mark(z0))
   mark(sel(z0, z1)) -> a__sel(mark(z0), mark(z1))
   mark(cons(z0, z1)) -> cons(mark(z0), z1)
   mark(s(z0)) -> s(mark(z0))
   mark(0) -> 0
Tuples:
   A__FROM(z0) -> c(MARK(z0))
   A__SEL(0, cons(z0, z1)) -> c2(MARK(z0))
   MARK(from(z0)) -> c6(A__FROM(mark(z0)), MARK(z0))
   MARK(sel(z0, z1)) -> c7(A__SEL(mark(z0), mark(z1)), MARK(z0))
   MARK(sel(z0, z1)) -> c8(A__SEL(mark(z0), mark(z1)), MARK(z1))
   MARK(cons(z0, z1)) -> c9(MARK(z0))
   MARK(s(z0)) -> c10(MARK(z0))
   A__SEL(s(x0), cons(x1, from(z0))) -> c3(A__SEL(mark(x0), a__from(mark(z0))), MARK(x0))
   A__SEL(s(x0), cons(x1, sel(z0, z1))) -> c3(A__SEL(mark(x0), a__sel(mark(z0), mark(z1))), MARK(x0))
   A__SEL(s(x0), cons(x1, cons(z0, z1))) -> c3(A__SEL(mark(x0), cons(mark(z0), z1)), MARK(x0))
   A__SEL(s(from(z0)), cons(x1, x2)) -> c3(A__SEL(a__from(mark(z0)), mark(x2)), MARK(from(z0)))
   A__SEL(s(sel(z0, z1)), cons(x1, x2)) -> c3(A__SEL(a__sel(mark(z0), mark(z1)), mark(x2)), MARK(sel(z0, z1)))
   A__SEL(s(s(z0)), cons(x1, x2)) -> c3(A__SEL(s(mark(z0)), mark(x2)), MARK(s(z0)))
   A__SEL(s(x0), cons(x1, s(z0))) -> c3(MARK(x0))
   A__SEL(s(x0), cons(x1, 0)) -> c3(MARK(x0))
   A__SEL(s(cons(z0, z1)), cons(x1, x2)) -> c3(MARK(cons(z0, z1)))
   A__SEL(s(0), cons(x1, x2)) -> c3(A__SEL(0, mark(x2)))
   A__SEL(s(x0), cons(x1, from(z0))) -> c4(A__SEL(mark(x0), a__from(mark(z0))), MARK(from(z0)))
   A__SEL(s(x0), cons(x1, sel(z0, z1))) -> c4(A__SEL(mark(x0), a__sel(mark(z0), mark(z1))), MARK(sel(z0, z1)))
   A__SEL(s(x0), cons(x1, cons(z0, z1))) -> c4(A__SEL(mark(x0), cons(mark(z0), z1)), MARK(cons(z0, z1)))
   A__SEL(s(x0), cons(x1, s(z0))) -> c4(A__SEL(mark(x0), s(mark(z0))), MARK(s(z0)))
   A__SEL(s(x0), cons(x1, 0)) -> c4(A__SEL(mark(x0), 0), MARK(0))
   A__SEL(s(from(z0)), cons(x1, x2)) -> c4(A__SEL(a__from(mark(z0)), mark(x2)), MARK(x2))
   A__SEL(s(sel(z0, z1)), cons(x1, x2)) -> c4(A__SEL(a__sel(mark(z0), mark(z1)), mark(x2)), MARK(x2))
   A__SEL(s(cons(z0, z1)), cons(x1, x2)) -> c4(A__SEL(cons(mark(z0), z1), mark(x2)), MARK(x2))
   A__SEL(s(s(z0)), cons(x1, x2)) -> c4(A__SEL(s(mark(z0)), mark(x2)), MARK(x2))
   A__SEL(s(0), cons(x1, x2)) -> c4(A__SEL(0, mark(x2)), MARK(x2))
S tuples:
   A__FROM(z0) -> c(MARK(z0))
   A__SEL(0, cons(z0, z1)) -> c2(MARK(z0))
   MARK(from(z0)) -> c6(A__FROM(mark(z0)), MARK(z0))
   MARK(sel(z0, z1)) -> c7(A__SEL(mark(z0), mark(z1)), MARK(z0))
   MARK(sel(z0, z1)) -> c8(A__SEL(mark(z0), mark(z1)), MARK(z1))
   MARK(cons(z0, z1)) -> c9(MARK(z0))
   MARK(s(z0)) -> c10(MARK(z0))
   A__SEL(s(x0), cons(x1, from(z0))) -> c3(A__SEL(mark(x0), a__from(mark(z0))), MARK(x0))
   A__SEL(s(x0), cons(x1, sel(z0, z1))) -> c3(A__SEL(mark(x0), a__sel(mark(z0), mark(z1))), MARK(x0))
   A__SEL(s(x0), cons(x1, cons(z0, z1))) -> c3(A__SEL(mark(x0), cons(mark(z0), z1)), MARK(x0))
   A__SEL(s(from(z0)), cons(x1, x2)) -> c3(A__SEL(a__from(mark(z0)), mark(x2)), MARK(from(z0)))
   A__SEL(s(sel(z0, z1)), cons(x1, x2)) -> c3(A__SEL(a__sel(mark(z0), mark(z1)), mark(x2)), MARK(sel(z0, z1)))
   A__SEL(s(s(z0)), cons(x1, x2)) -> c3(A__SEL(s(mark(z0)), mark(x2)), MARK(s(z0)))
   A__SEL(s(x0), cons(x1, s(z0))) -> c3(MARK(x0))
   A__SEL(s(x0), cons(x1, 0)) -> c3(MARK(x0))
   A__SEL(s(cons(z0, z1)), cons(x1, x2)) -> c3(MARK(cons(z0, z1)))
   A__SEL(s(0), cons(x1, x2)) -> c3(A__SEL(0, mark(x2)))
   A__SEL(s(x0), cons(x1, from(z0))) -> c4(A__SEL(mark(x0), a__from(mark(z0))), MARK(from(z0)))
   A__SEL(s(x0), cons(x1, sel(z0, z1))) -> c4(A__SEL(mark(x0), a__sel(mark(z0), mark(z1))), MARK(sel(z0, z1)))
   A__SEL(s(x0), cons(x1, cons(z0, z1))) -> c4(A__SEL(mark(x0), cons(mark(z0), z1)), MARK(cons(z0, z1)))
   A__SEL(s(x0), cons(x1, s(z0))) -> c4(A__SEL(mark(x0), s(mark(z0))), MARK(s(z0)))
   A__SEL(s(x0), cons(x1, 0)) -> c4(A__SEL(mark(x0), 0), MARK(0))
   A__SEL(s(from(z0)), cons(x1, x2)) -> c4(A__SEL(a__from(mark(z0)), mark(x2)), MARK(x2))
   A__SEL(s(sel(z0, z1)), cons(x1, x2)) -> c4(A__SEL(a__sel(mark(z0), mark(z1)), mark(x2)), MARK(x2))
   A__SEL(s(cons(z0, z1)), cons(x1, x2)) -> c4(A__SEL(cons(mark(z0), z1), mark(x2)), MARK(x2))
   A__SEL(s(s(z0)), cons(x1, x2)) -> c4(A__SEL(s(mark(z0)), mark(x2)), MARK(x2))
   A__SEL(s(0), cons(x1, x2)) -> c4(A__SEL(0, mark(x2)), MARK(x2))
K tuples:none
Defined Rule Symbols:   a__from_1, a__sel_2, mark_1

Defined Pair Symbols:   A__FROM_1, A__SEL_2, MARK_1

Compound Symbols:   c_1, c2_1, c6_2, c7_2, c8_2, c9_1, c10_1, c3_2, c3_1, c4_2


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

(63) CdtLeafRemovalProof (BOTH BOUNDS(ID, ID))
Removed 1 trailing nodes:
   A__SEL(s(x0), cons(x1, 0)) -> c4(A__SEL(mark(x0), 0), MARK(0))

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

(64)
Obligation:
Complexity Dependency Tuples Problem

Rules:
   a__from(z0) -> cons(mark(z0), from(s(z0)))
   a__from(z0) -> from(z0)
   a__sel(0, cons(z0, z1)) -> mark(z0)
   a__sel(s(z0), cons(z1, z2)) -> a__sel(mark(z0), mark(z2))
   a__sel(z0, z1) -> sel(z0, z1)
   mark(from(z0)) -> a__from(mark(z0))
   mark(sel(z0, z1)) -> a__sel(mark(z0), mark(z1))
   mark(cons(z0, z1)) -> cons(mark(z0), z1)
   mark(s(z0)) -> s(mark(z0))
   mark(0) -> 0
Tuples:
   A__FROM(z0) -> c(MARK(z0))
   A__SEL(0, cons(z0, z1)) -> c2(MARK(z0))
   MARK(from(z0)) -> c6(A__FROM(mark(z0)), MARK(z0))
   MARK(sel(z0, z1)) -> c7(A__SEL(mark(z0), mark(z1)), MARK(z0))
   MARK(sel(z0, z1)) -> c8(A__SEL(mark(z0), mark(z1)), MARK(z1))
   MARK(cons(z0, z1)) -> c9(MARK(z0))
   MARK(s(z0)) -> c10(MARK(z0))
   A__SEL(s(x0), cons(x1, from(z0))) -> c3(A__SEL(mark(x0), a__from(mark(z0))), MARK(x0))
   A__SEL(s(x0), cons(x1, sel(z0, z1))) -> c3(A__SEL(mark(x0), a__sel(mark(z0), mark(z1))), MARK(x0))
   A__SEL(s(x0), cons(x1, cons(z0, z1))) -> c3(A__SEL(mark(x0), cons(mark(z0), z1)), MARK(x0))
   A__SEL(s(from(z0)), cons(x1, x2)) -> c3(A__SEL(a__from(mark(z0)), mark(x2)), MARK(from(z0)))
   A__SEL(s(sel(z0, z1)), cons(x1, x2)) -> c3(A__SEL(a__sel(mark(z0), mark(z1)), mark(x2)), MARK(sel(z0, z1)))
   A__SEL(s(s(z0)), cons(x1, x2)) -> c3(A__SEL(s(mark(z0)), mark(x2)), MARK(s(z0)))
   A__SEL(s(x0), cons(x1, s(z0))) -> c3(MARK(x0))
   A__SEL(s(x0), cons(x1, 0)) -> c3(MARK(x0))
   A__SEL(s(cons(z0, z1)), cons(x1, x2)) -> c3(MARK(cons(z0, z1)))
   A__SEL(s(0), cons(x1, x2)) -> c3(A__SEL(0, mark(x2)))
   A__SEL(s(x0), cons(x1, from(z0))) -> c4(A__SEL(mark(x0), a__from(mark(z0))), MARK(from(z0)))
   A__SEL(s(x0), cons(x1, sel(z0, z1))) -> c4(A__SEL(mark(x0), a__sel(mark(z0), mark(z1))), MARK(sel(z0, z1)))
   A__SEL(s(x0), cons(x1, cons(z0, z1))) -> c4(A__SEL(mark(x0), cons(mark(z0), z1)), MARK(cons(z0, z1)))
   A__SEL(s(x0), cons(x1, s(z0))) -> c4(A__SEL(mark(x0), s(mark(z0))), MARK(s(z0)))
   A__SEL(s(from(z0)), cons(x1, x2)) -> c4(A__SEL(a__from(mark(z0)), mark(x2)), MARK(x2))
   A__SEL(s(sel(z0, z1)), cons(x1, x2)) -> c4(A__SEL(a__sel(mark(z0), mark(z1)), mark(x2)), MARK(x2))
   A__SEL(s(cons(z0, z1)), cons(x1, x2)) -> c4(A__SEL(cons(mark(z0), z1), mark(x2)), MARK(x2))
   A__SEL(s(s(z0)), cons(x1, x2)) -> c4(A__SEL(s(mark(z0)), mark(x2)), MARK(x2))
   A__SEL(s(0), cons(x1, x2)) -> c4(A__SEL(0, mark(x2)), MARK(x2))
S tuples:
   A__FROM(z0) -> c(MARK(z0))
   A__SEL(0, cons(z0, z1)) -> c2(MARK(z0))
   MARK(from(z0)) -> c6(A__FROM(mark(z0)), MARK(z0))
   MARK(sel(z0, z1)) -> c7(A__SEL(mark(z0), mark(z1)), MARK(z0))
   MARK(sel(z0, z1)) -> c8(A__SEL(mark(z0), mark(z1)), MARK(z1))
   MARK(cons(z0, z1)) -> c9(MARK(z0))
   MARK(s(z0)) -> c10(MARK(z0))
   A__SEL(s(x0), cons(x1, from(z0))) -> c3(A__SEL(mark(x0), a__from(mark(z0))), MARK(x0))
   A__SEL(s(x0), cons(x1, sel(z0, z1))) -> c3(A__SEL(mark(x0), a__sel(mark(z0), mark(z1))), MARK(x0))
   A__SEL(s(x0), cons(x1, cons(z0, z1))) -> c3(A__SEL(mark(x0), cons(mark(z0), z1)), MARK(x0))
   A__SEL(s(from(z0)), cons(x1, x2)) -> c3(A__SEL(a__from(mark(z0)), mark(x2)), MARK(from(z0)))
   A__SEL(s(sel(z0, z1)), cons(x1, x2)) -> c3(A__SEL(a__sel(mark(z0), mark(z1)), mark(x2)), MARK(sel(z0, z1)))
   A__SEL(s(s(z0)), cons(x1, x2)) -> c3(A__SEL(s(mark(z0)), mark(x2)), MARK(s(z0)))
   A__SEL(s(x0), cons(x1, s(z0))) -> c3(MARK(x0))
   A__SEL(s(x0), cons(x1, 0)) -> c3(MARK(x0))
   A__SEL(s(cons(z0, z1)), cons(x1, x2)) -> c3(MARK(cons(z0, z1)))
   A__SEL(s(0), cons(x1, x2)) -> c3(A__SEL(0, mark(x2)))
   A__SEL(s(x0), cons(x1, from(z0))) -> c4(A__SEL(mark(x0), a__from(mark(z0))), MARK(from(z0)))
   A__SEL(s(x0), cons(x1, sel(z0, z1))) -> c4(A__SEL(mark(x0), a__sel(mark(z0), mark(z1))), MARK(sel(z0, z1)))
   A__SEL(s(x0), cons(x1, cons(z0, z1))) -> c4(A__SEL(mark(x0), cons(mark(z0), z1)), MARK(cons(z0, z1)))
   A__SEL(s(x0), cons(x1, s(z0))) -> c4(A__SEL(mark(x0), s(mark(z0))), MARK(s(z0)))
   A__SEL(s(from(z0)), cons(x1, x2)) -> c4(A__SEL(a__from(mark(z0)), mark(x2)), MARK(x2))
   A__SEL(s(sel(z0, z1)), cons(x1, x2)) -> c4(A__SEL(a__sel(mark(z0), mark(z1)), mark(x2)), MARK(x2))
   A__SEL(s(cons(z0, z1)), cons(x1, x2)) -> c4(A__SEL(cons(mark(z0), z1), mark(x2)), MARK(x2))
   A__SEL(s(s(z0)), cons(x1, x2)) -> c4(A__SEL(s(mark(z0)), mark(x2)), MARK(x2))
   A__SEL(s(0), cons(x1, x2)) -> c4(A__SEL(0, mark(x2)), MARK(x2))
K tuples:none
Defined Rule Symbols:   a__from_1, a__sel_2, mark_1

Defined Pair Symbols:   A__FROM_1, A__SEL_2, MARK_1

Compound Symbols:   c_1, c2_1, c6_2, c7_2, c8_2, c9_1, c10_1, c3_2, c3_1, c4_2


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

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

(66)
Obligation:
Complexity Dependency Tuples Problem

Rules:
   a__from(z0) -> cons(mark(z0), from(s(z0)))
   a__from(z0) -> from(z0)
   a__sel(0, cons(z0, z1)) -> mark(z0)
   a__sel(s(z0), cons(z1, z2)) -> a__sel(mark(z0), mark(z2))
   a__sel(z0, z1) -> sel(z0, z1)
   mark(from(z0)) -> a__from(mark(z0))
   mark(sel(z0, z1)) -> a__sel(mark(z0), mark(z1))
   mark(cons(z0, z1)) -> cons(mark(z0), z1)
   mark(s(z0)) -> s(mark(z0))
   mark(0) -> 0
Tuples:
   A__FROM(z0) -> c(MARK(z0))
   A__SEL(0, cons(z0, z1)) -> c2(MARK(z0))
   MARK(from(z0)) -> c6(A__FROM(mark(z0)), MARK(z0))
   MARK(sel(z0, z1)) -> c7(A__SEL(mark(z0), mark(z1)), MARK(z0))
   MARK(sel(z0, z1)) -> c8(A__SEL(mark(z0), mark(z1)), MARK(z1))
   MARK(cons(z0, z1)) -> c9(MARK(z0))
   MARK(s(z0)) -> c10(MARK(z0))
   A__SEL(s(x0), cons(x1, from(z0))) -> c3(A__SEL(mark(x0), a__from(mark(z0))), MARK(x0))
   A__SEL(s(x0), cons(x1, sel(z0, z1))) -> c3(A__SEL(mark(x0), a__sel(mark(z0), mark(z1))), MARK(x0))
   A__SEL(s(x0), cons(x1, cons(z0, z1))) -> c3(A__SEL(mark(x0), cons(mark(z0), z1)), MARK(x0))
   A__SEL(s(from(z0)), cons(x1, x2)) -> c3(A__SEL(a__from(mark(z0)), mark(x2)), MARK(from(z0)))
   A__SEL(s(sel(z0, z1)), cons(x1, x2)) -> c3(A__SEL(a__sel(mark(z0), mark(z1)), mark(x2)), MARK(sel(z0, z1)))
   A__SEL(s(s(z0)), cons(x1, x2)) -> c3(A__SEL(s(mark(z0)), mark(x2)), MARK(s(z0)))
   A__SEL(s(x0), cons(x1, s(z0))) -> c3(MARK(x0))
   A__SEL(s(x0), cons(x1, 0)) -> c3(MARK(x0))
   A__SEL(s(cons(z0, z1)), cons(x1, x2)) -> c3(MARK(cons(z0, z1)))
   A__SEL(s(0), cons(x1, x2)) -> c3(A__SEL(0, mark(x2)))
   A__SEL(s(x0), cons(x1, from(z0))) -> c4(A__SEL(mark(x0), a__from(mark(z0))), MARK(from(z0)))
   A__SEL(s(x0), cons(x1, sel(z0, z1))) -> c4(A__SEL(mark(x0), a__sel(mark(z0), mark(z1))), MARK(sel(z0, z1)))
   A__SEL(s(x0), cons(x1, cons(z0, z1))) -> c4(A__SEL(mark(x0), cons(mark(z0), z1)), MARK(cons(z0, z1)))
   A__SEL(s(from(z0)), cons(x1, x2)) -> c4(A__SEL(a__from(mark(z0)), mark(x2)), MARK(x2))
   A__SEL(s(sel(z0, z1)), cons(x1, x2)) -> c4(A__SEL(a__sel(mark(z0), mark(z1)), mark(x2)), MARK(x2))
   A__SEL(s(s(z0)), cons(x1, x2)) -> c4(A__SEL(s(mark(z0)), mark(x2)), MARK(x2))
   A__SEL(s(0), cons(x1, x2)) -> c4(A__SEL(0, mark(x2)), MARK(x2))
   A__SEL(s(x0), cons(x1, s(z0))) -> c4(MARK(s(z0)))
   A__SEL(s(cons(z0, z1)), cons(x1, x2)) -> c4(MARK(x2))
S tuples:
   A__FROM(z0) -> c(MARK(z0))
   A__SEL(0, cons(z0, z1)) -> c2(MARK(z0))
   MARK(from(z0)) -> c6(A__FROM(mark(z0)), MARK(z0))
   MARK(sel(z0, z1)) -> c7(A__SEL(mark(z0), mark(z1)), MARK(z0))
   MARK(sel(z0, z1)) -> c8(A__SEL(mark(z0), mark(z1)), MARK(z1))
   MARK(cons(z0, z1)) -> c9(MARK(z0))
   MARK(s(z0)) -> c10(MARK(z0))
   A__SEL(s(x0), cons(x1, from(z0))) -> c3(A__SEL(mark(x0), a__from(mark(z0))), MARK(x0))
   A__SEL(s(x0), cons(x1, sel(z0, z1))) -> c3(A__SEL(mark(x0), a__sel(mark(z0), mark(z1))), MARK(x0))
   A__SEL(s(x0), cons(x1, cons(z0, z1))) -> c3(A__SEL(mark(x0), cons(mark(z0), z1)), MARK(x0))
   A__SEL(s(from(z0)), cons(x1, x2)) -> c3(A__SEL(a__from(mark(z0)), mark(x2)), MARK(from(z0)))
   A__SEL(s(sel(z0, z1)), cons(x1, x2)) -> c3(A__SEL(a__sel(mark(z0), mark(z1)), mark(x2)), MARK(sel(z0, z1)))
   A__SEL(s(s(z0)), cons(x1, x2)) -> c3(A__SEL(s(mark(z0)), mark(x2)), MARK(s(z0)))
   A__SEL(s(x0), cons(x1, s(z0))) -> c3(MARK(x0))
   A__SEL(s(x0), cons(x1, 0)) -> c3(MARK(x0))
   A__SEL(s(cons(z0, z1)), cons(x1, x2)) -> c3(MARK(cons(z0, z1)))
   A__SEL(s(0), cons(x1, x2)) -> c3(A__SEL(0, mark(x2)))
   A__SEL(s(x0), cons(x1, from(z0))) -> c4(A__SEL(mark(x0), a__from(mark(z0))), MARK(from(z0)))
   A__SEL(s(x0), cons(x1, sel(z0, z1))) -> c4(A__SEL(mark(x0), a__sel(mark(z0), mark(z1))), MARK(sel(z0, z1)))
   A__SEL(s(x0), cons(x1, cons(z0, z1))) -> c4(A__SEL(mark(x0), cons(mark(z0), z1)), MARK(cons(z0, z1)))
   A__SEL(s(from(z0)), cons(x1, x2)) -> c4(A__SEL(a__from(mark(z0)), mark(x2)), MARK(x2))
   A__SEL(s(sel(z0, z1)), cons(x1, x2)) -> c4(A__SEL(a__sel(mark(z0), mark(z1)), mark(x2)), MARK(x2))
   A__SEL(s(s(z0)), cons(x1, x2)) -> c4(A__SEL(s(mark(z0)), mark(x2)), MARK(x2))
   A__SEL(s(0), cons(x1, x2)) -> c4(A__SEL(0, mark(x2)), MARK(x2))
   A__SEL(s(x0), cons(x1, s(z0))) -> c4(MARK(s(z0)))
   A__SEL(s(cons(z0, z1)), cons(x1, x2)) -> c4(MARK(x2))
K tuples:none
Defined Rule Symbols:   a__from_1, a__sel_2, mark_1

Defined Pair Symbols:   A__FROM_1, A__SEL_2, MARK_1

Compound Symbols:   c_1, c2_1, c6_2, c7_2, c8_2, c9_1, c10_1, c3_2, c3_1, c4_2, c4_1


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

(67) CdtNarrowingProof (BOTH BOUNDS(ID, ID))
Use narrowing to replace MARK(sel(z0, z1)) -> c7(A__SEL(mark(z0), mark(z1)), MARK(z0)) by 
   MARK(sel(x0, from(z0))) -> c7(A__SEL(mark(x0), a__from(mark(z0))), MARK(x0))
   MARK(sel(x0, sel(z0, z1))) -> c7(A__SEL(mark(x0), a__sel(mark(z0), mark(z1))), MARK(x0))
   MARK(sel(x0, cons(z0, z1))) -> c7(A__SEL(mark(x0), cons(mark(z0), z1)), MARK(x0))
   MARK(sel(x0, s(z0))) -> c7(A__SEL(mark(x0), s(mark(z0))), MARK(x0))
   MARK(sel(x0, 0)) -> c7(A__SEL(mark(x0), 0), MARK(x0))
   MARK(sel(from(z0), x1)) -> c7(A__SEL(a__from(mark(z0)), mark(x1)), MARK(from(z0)))
   MARK(sel(sel(z0, z1), x1)) -> c7(A__SEL(a__sel(mark(z0), mark(z1)), mark(x1)), MARK(sel(z0, z1)))
   MARK(sel(cons(z0, z1), x1)) -> c7(A__SEL(cons(mark(z0), z1), mark(x1)), MARK(cons(z0, z1)))
   MARK(sel(s(z0), x1)) -> c7(A__SEL(s(mark(z0)), mark(x1)), MARK(s(z0)))
   MARK(sel(0, x1)) -> c7(A__SEL(0, mark(x1)), MARK(0))

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

(68)
Obligation:
Complexity Dependency Tuples Problem

Rules:
   a__from(z0) -> cons(mark(z0), from(s(z0)))
   a__from(z0) -> from(z0)
   a__sel(0, cons(z0, z1)) -> mark(z0)
   a__sel(s(z0), cons(z1, z2)) -> a__sel(mark(z0), mark(z2))
   a__sel(z0, z1) -> sel(z0, z1)
   mark(from(z0)) -> a__from(mark(z0))
   mark(sel(z0, z1)) -> a__sel(mark(z0), mark(z1))
   mark(cons(z0, z1)) -> cons(mark(z0), z1)
   mark(s(z0)) -> s(mark(z0))
   mark(0) -> 0
Tuples:
   A__FROM(z0) -> c(MARK(z0))
   A__SEL(0, cons(z0, z1)) -> c2(MARK(z0))
   MARK(from(z0)) -> c6(A__FROM(mark(z0)), MARK(z0))
   MARK(sel(z0, z1)) -> c8(A__SEL(mark(z0), mark(z1)), MARK(z1))
   MARK(cons(z0, z1)) -> c9(MARK(z0))
   MARK(s(z0)) -> c10(MARK(z0))
   A__SEL(s(x0), cons(x1, from(z0))) -> c3(A__SEL(mark(x0), a__from(mark(z0))), MARK(x0))
   A__SEL(s(x0), cons(x1, sel(z0, z1))) -> c3(A__SEL(mark(x0), a__sel(mark(z0), mark(z1))), MARK(x0))
   A__SEL(s(x0), cons(x1, cons(z0, z1))) -> c3(A__SEL(mark(x0), cons(mark(z0), z1)), MARK(x0))
   A__SEL(s(from(z0)), cons(x1, x2)) -> c3(A__SEL(a__from(mark(z0)), mark(x2)), MARK(from(z0)))
   A__SEL(s(sel(z0, z1)), cons(x1, x2)) -> c3(A__SEL(a__sel(mark(z0), mark(z1)), mark(x2)), MARK(sel(z0, z1)))
   A__SEL(s(s(z0)), cons(x1, x2)) -> c3(A__SEL(s(mark(z0)), mark(x2)), MARK(s(z0)))
   A__SEL(s(x0), cons(x1, s(z0))) -> c3(MARK(x0))
   A__SEL(s(x0), cons(x1, 0)) -> c3(MARK(x0))
   A__SEL(s(cons(z0, z1)), cons(x1, x2)) -> c3(MARK(cons(z0, z1)))
   A__SEL(s(0), cons(x1, x2)) -> c3(A__SEL(0, mark(x2)))
   A__SEL(s(x0), cons(x1, from(z0))) -> c4(A__SEL(mark(x0), a__from(mark(z0))), MARK(from(z0)))
   A__SEL(s(x0), cons(x1, sel(z0, z1))) -> c4(A__SEL(mark(x0), a__sel(mark(z0), mark(z1))), MARK(sel(z0, z1)))
   A__SEL(s(x0), cons(x1, cons(z0, z1))) -> c4(A__SEL(mark(x0), cons(mark(z0), z1)), MARK(cons(z0, z1)))
   A__SEL(s(from(z0)), cons(x1, x2)) -> c4(A__SEL(a__from(mark(z0)), mark(x2)), MARK(x2))
   A__SEL(s(sel(z0, z1)), cons(x1, x2)) -> c4(A__SEL(a__sel(mark(z0), mark(z1)), mark(x2)), MARK(x2))
   A__SEL(s(s(z0)), cons(x1, x2)) -> c4(A__SEL(s(mark(z0)), mark(x2)), MARK(x2))
   A__SEL(s(0), cons(x1, x2)) -> c4(A__SEL(0, mark(x2)), MARK(x2))
   A__SEL(s(x0), cons(x1, s(z0))) -> c4(MARK(s(z0)))
   A__SEL(s(cons(z0, z1)), cons(x1, x2)) -> c4(MARK(x2))
   MARK(sel(x0, from(z0))) -> c7(A__SEL(mark(x0), a__from(mark(z0))), MARK(x0))
   MARK(sel(x0, sel(z0, z1))) -> c7(A__SEL(mark(x0), a__sel(mark(z0), mark(z1))), MARK(x0))
   MARK(sel(x0, cons(z0, z1))) -> c7(A__SEL(mark(x0), cons(mark(z0), z1)), MARK(x0))
   MARK(sel(x0, s(z0))) -> c7(A__SEL(mark(x0), s(mark(z0))), MARK(x0))
   MARK(sel(x0, 0)) -> c7(A__SEL(mark(x0), 0), MARK(x0))
   MARK(sel(from(z0), x1)) -> c7(A__SEL(a__from(mark(z0)), mark(x1)), MARK(from(z0)))
   MARK(sel(sel(z0, z1), x1)) -> c7(A__SEL(a__sel(mark(z0), mark(z1)), mark(x1)), MARK(sel(z0, z1)))
   MARK(sel(cons(z0, z1), x1)) -> c7(A__SEL(cons(mark(z0), z1), mark(x1)), MARK(cons(z0, z1)))
   MARK(sel(s(z0), x1)) -> c7(A__SEL(s(mark(z0)), mark(x1)), MARK(s(z0)))
   MARK(sel(0, x1)) -> c7(A__SEL(0, mark(x1)), MARK(0))
S tuples:
   A__FROM(z0) -> c(MARK(z0))
   A__SEL(0, cons(z0, z1)) -> c2(MARK(z0))
   MARK(from(z0)) -> c6(A__FROM(mark(z0)), MARK(z0))
   MARK(sel(z0, z1)) -> c8(A__SEL(mark(z0), mark(z1)), MARK(z1))
   MARK(cons(z0, z1)) -> c9(MARK(z0))
   MARK(s(z0)) -> c10(MARK(z0))
   A__SEL(s(x0), cons(x1, from(z0))) -> c3(A__SEL(mark(x0), a__from(mark(z0))), MARK(x0))
   A__SEL(s(x0), cons(x1, sel(z0, z1))) -> c3(A__SEL(mark(x0), a__sel(mark(z0), mark(z1))), MARK(x0))
   A__SEL(s(x0), cons(x1, cons(z0, z1))) -> c3(A__SEL(mark(x0), cons(mark(z0), z1)), MARK(x0))
   A__SEL(s(from(z0)), cons(x1, x2)) -> c3(A__SEL(a__from(mark(z0)), mark(x2)), MARK(from(z0)))
   A__SEL(s(sel(z0, z1)), cons(x1, x2)) -> c3(A__SEL(a__sel(mark(z0), mark(z1)), mark(x2)), MARK(sel(z0, z1)))
   A__SEL(s(s(z0)), cons(x1, x2)) -> c3(A__SEL(s(mark(z0)), mark(x2)), MARK(s(z0)))
   A__SEL(s(x0), cons(x1, s(z0))) -> c3(MARK(x0))
   A__SEL(s(x0), cons(x1, 0)) -> c3(MARK(x0))
   A__SEL(s(cons(z0, z1)), cons(x1, x2)) -> c3(MARK(cons(z0, z1)))
   A__SEL(s(0), cons(x1, x2)) -> c3(A__SEL(0, mark(x2)))
   A__SEL(s(x0), cons(x1, from(z0))) -> c4(A__SEL(mark(x0), a__from(mark(z0))), MARK(from(z0)))
   A__SEL(s(x0), cons(x1, sel(z0, z1))) -> c4(A__SEL(mark(x0), a__sel(mark(z0), mark(z1))), MARK(sel(z0, z1)))
   A__SEL(s(x0), cons(x1, cons(z0, z1))) -> c4(A__SEL(mark(x0), cons(mark(z0), z1)), MARK(cons(z0, z1)))
   A__SEL(s(from(z0)), cons(x1, x2)) -> c4(A__SEL(a__from(mark(z0)), mark(x2)), MARK(x2))
   A__SEL(s(sel(z0, z1)), cons(x1, x2)) -> c4(A__SEL(a__sel(mark(z0), mark(z1)), mark(x2)), MARK(x2))
   A__SEL(s(s(z0)), cons(x1, x2)) -> c4(A__SEL(s(mark(z0)), mark(x2)), MARK(x2))
   A__SEL(s(0), cons(x1, x2)) -> c4(A__SEL(0, mark(x2)), MARK(x2))
   A__SEL(s(x0), cons(x1, s(z0))) -> c4(MARK(s(z0)))
   A__SEL(s(cons(z0, z1)), cons(x1, x2)) -> c4(MARK(x2))
   MARK(sel(x0, from(z0))) -> c7(A__SEL(mark(x0), a__from(mark(z0))), MARK(x0))
   MARK(sel(x0, sel(z0, z1))) -> c7(A__SEL(mark(x0), a__sel(mark(z0), mark(z1))), MARK(x0))
   MARK(sel(x0, cons(z0, z1))) -> c7(A__SEL(mark(x0), cons(mark(z0), z1)), MARK(x0))
   MARK(sel(x0, s(z0))) -> c7(A__SEL(mark(x0), s(mark(z0))), MARK(x0))
   MARK(sel(x0, 0)) -> c7(A__SEL(mark(x0), 0), MARK(x0))
   MARK(sel(from(z0), x1)) -> c7(A__SEL(a__from(mark(z0)), mark(x1)), MARK(from(z0)))
   MARK(sel(sel(z0, z1), x1)) -> c7(A__SEL(a__sel(mark(z0), mark(z1)), mark(x1)), MARK(sel(z0, z1)))
   MARK(sel(cons(z0, z1), x1)) -> c7(A__SEL(cons(mark(z0), z1), mark(x1)), MARK(cons(z0, z1)))
   MARK(sel(s(z0), x1)) -> c7(A__SEL(s(mark(z0)), mark(x1)), MARK(s(z0)))
   MARK(sel(0, x1)) -> c7(A__SEL(0, mark(x1)), MARK(0))
K tuples:none
Defined Rule Symbols:   a__from_1, a__sel_2, mark_1

Defined Pair Symbols:   A__FROM_1, A__SEL_2, MARK_1

Compound Symbols:   c_1, c2_1, c6_2, c8_2, c9_1, c10_1, c3_2, c3_1, c4_2, c4_1, c7_2


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

(69) CdtRhsSimplificationProcessorProof (BOTH BOUNDS(ID, ID))
Removed 4 trailing tuple parts
----------------------------------------

(70)
Obligation:
Complexity Dependency Tuples Problem

Rules:
   a__from(z0) -> cons(mark(z0), from(s(z0)))
   a__from(z0) -> from(z0)
   a__sel(0, cons(z0, z1)) -> mark(z0)
   a__sel(s(z0), cons(z1, z2)) -> a__sel(mark(z0), mark(z2))
   a__sel(z0, z1) -> sel(z0, z1)
   mark(from(z0)) -> a__from(mark(z0))
   mark(sel(z0, z1)) -> a__sel(mark(z0), mark(z1))
   mark(cons(z0, z1)) -> cons(mark(z0), z1)
   mark(s(z0)) -> s(mark(z0))
   mark(0) -> 0
Tuples:
   A__FROM(z0) -> c(MARK(z0))
   A__SEL(0, cons(z0, z1)) -> c2(MARK(z0))
   MARK(from(z0)) -> c6(A__FROM(mark(z0)), MARK(z0))
   MARK(sel(z0, z1)) -> c8(A__SEL(mark(z0), mark(z1)), MARK(z1))
   MARK(cons(z0, z1)) -> c9(MARK(z0))
   MARK(s(z0)) -> c10(MARK(z0))
   A__SEL(s(x0), cons(x1, from(z0))) -> c3(A__SEL(mark(x0), a__from(mark(z0))), MARK(x0))
   A__SEL(s(x0), cons(x1, sel(z0, z1))) -> c3(A__SEL(mark(x0), a__sel(mark(z0), mark(z1))), MARK(x0))
   A__SEL(s(x0), cons(x1, cons(z0, z1))) -> c3(A__SEL(mark(x0), cons(mark(z0), z1)), MARK(x0))
   A__SEL(s(from(z0)), cons(x1, x2)) -> c3(A__SEL(a__from(mark(z0)), mark(x2)), MARK(from(z0)))
   A__SEL(s(sel(z0, z1)), cons(x1, x2)) -> c3(A__SEL(a__sel(mark(z0), mark(z1)), mark(x2)), MARK(sel(z0, z1)))
   A__SEL(s(s(z0)), cons(x1, x2)) -> c3(A__SEL(s(mark(z0)), mark(x2)), MARK(s(z0)))
   A__SEL(s(x0), cons(x1, s(z0))) -> c3(MARK(x0))
   A__SEL(s(x0), cons(x1, 0)) -> c3(MARK(x0))
   A__SEL(s(cons(z0, z1)), cons(x1, x2)) -> c3(MARK(cons(z0, z1)))
   A__SEL(s(0), cons(x1, x2)) -> c3(A__SEL(0, mark(x2)))
   A__SEL(s(x0), cons(x1, from(z0))) -> c4(A__SEL(mark(x0), a__from(mark(z0))), MARK(from(z0)))
   A__SEL(s(x0), cons(x1, sel(z0, z1))) -> c4(A__SEL(mark(x0), a__sel(mark(z0), mark(z1))), MARK(sel(z0, z1)))
   A__SEL(s(x0), cons(x1, cons(z0, z1))) -> c4(A__SEL(mark(x0), cons(mark(z0), z1)), MARK(cons(z0, z1)))
   A__SEL(s(from(z0)), cons(x1, x2)) -> c4(A__SEL(a__from(mark(z0)), mark(x2)), MARK(x2))
   A__SEL(s(sel(z0, z1)), cons(x1, x2)) -> c4(A__SEL(a__sel(mark(z0), mark(z1)), mark(x2)), MARK(x2))
   A__SEL(s(s(z0)), cons(x1, x2)) -> c4(A__SEL(s(mark(z0)), mark(x2)), MARK(x2))
   A__SEL(s(0), cons(x1, x2)) -> c4(A__SEL(0, mark(x2)), MARK(x2))
   A__SEL(s(x0), cons(x1, s(z0))) -> c4(MARK(s(z0)))
   A__SEL(s(cons(z0, z1)), cons(x1, x2)) -> c4(MARK(x2))
   MARK(sel(x0, from(z0))) -> c7(A__SEL(mark(x0), a__from(mark(z0))), MARK(x0))
   MARK(sel(x0, sel(z0, z1))) -> c7(A__SEL(mark(x0), a__sel(mark(z0), mark(z1))), MARK(x0))
   MARK(sel(x0, cons(z0, z1))) -> c7(A__SEL(mark(x0), cons(mark(z0), z1)), MARK(x0))
   MARK(sel(from(z0), x1)) -> c7(A__SEL(a__from(mark(z0)), mark(x1)), MARK(from(z0)))
   MARK(sel(sel(z0, z1), x1)) -> c7(A__SEL(a__sel(mark(z0), mark(z1)), mark(x1)), MARK(sel(z0, z1)))
   MARK(sel(s(z0), x1)) -> c7(A__SEL(s(mark(z0)), mark(x1)), MARK(s(z0)))
   MARK(sel(x0, s(z0))) -> c7(MARK(x0))
   MARK(sel(x0, 0)) -> c7(MARK(x0))
   MARK(sel(cons(z0, z1), x1)) -> c7(MARK(cons(z0, z1)))
   MARK(sel(0, x1)) -> c7(A__SEL(0, mark(x1)))
S tuples:
   A__FROM(z0) -> c(MARK(z0))
   A__SEL(0, cons(z0, z1)) -> c2(MARK(z0))
   MARK(from(z0)) -> c6(A__FROM(mark(z0)), MARK(z0))
   MARK(sel(z0, z1)) -> c8(A__SEL(mark(z0), mark(z1)), MARK(z1))
   MARK(cons(z0, z1)) -> c9(MARK(z0))
   MARK(s(z0)) -> c10(MARK(z0))
   A__SEL(s(x0), cons(x1, from(z0))) -> c3(A__SEL(mark(x0), a__from(mark(z0))), MARK(x0))
   A__SEL(s(x0), cons(x1, sel(z0, z1))) -> c3(A__SEL(mark(x0), a__sel(mark(z0), mark(z1))), MARK(x0))
   A__SEL(s(x0), cons(x1, cons(z0, z1))) -> c3(A__SEL(mark(x0), cons(mark(z0), z1)), MARK(x0))
   A__SEL(s(from(z0)), cons(x1, x2)) -> c3(A__SEL(a__from(mark(z0)), mark(x2)), MARK(from(z0)))
   A__SEL(s(sel(z0, z1)), cons(x1, x2)) -> c3(A__SEL(a__sel(mark(z0), mark(z1)), mark(x2)), MARK(sel(z0, z1)))
   A__SEL(s(s(z0)), cons(x1, x2)) -> c3(A__SEL(s(mark(z0)), mark(x2)), MARK(s(z0)))
   A__SEL(s(x0), cons(x1, s(z0))) -> c3(MARK(x0))
   A__SEL(s(x0), cons(x1, 0)) -> c3(MARK(x0))
   A__SEL(s(cons(z0, z1)), cons(x1, x2)) -> c3(MARK(cons(z0, z1)))
   A__SEL(s(0), cons(x1, x2)) -> c3(A__SEL(0, mark(x2)))
   A__SEL(s(x0), cons(x1, from(z0))) -> c4(A__SEL(mark(x0), a__from(mark(z0))), MARK(from(z0)))
   A__SEL(s(x0), cons(x1, sel(z0, z1))) -> c4(A__SEL(mark(x0), a__sel(mark(z0), mark(z1))), MARK(sel(z0, z1)))
   A__SEL(s(x0), cons(x1, cons(z0, z1))) -> c4(A__SEL(mark(x0), cons(mark(z0), z1)), MARK(cons(z0, z1)))
   A__SEL(s(from(z0)), cons(x1, x2)) -> c4(A__SEL(a__from(mark(z0)), mark(x2)), MARK(x2))
   A__SEL(s(sel(z0, z1)), cons(x1, x2)) -> c4(A__SEL(a__sel(mark(z0), mark(z1)), mark(x2)), MARK(x2))
   A__SEL(s(s(z0)), cons(x1, x2)) -> c4(A__SEL(s(mark(z0)), mark(x2)), MARK(x2))
   A__SEL(s(0), cons(x1, x2)) -> c4(A__SEL(0, mark(x2)), MARK(x2))
   A__SEL(s(x0), cons(x1, s(z0))) -> c4(MARK(s(z0)))
   A__SEL(s(cons(z0, z1)), cons(x1, x2)) -> c4(MARK(x2))
   MARK(sel(x0, from(z0))) -> c7(A__SEL(mark(x0), a__from(mark(z0))), MARK(x0))
   MARK(sel(x0, sel(z0, z1))) -> c7(A__SEL(mark(x0), a__sel(mark(z0), mark(z1))), MARK(x0))
   MARK(sel(x0, cons(z0, z1))) -> c7(A__SEL(mark(x0), cons(mark(z0), z1)), MARK(x0))
   MARK(sel(from(z0), x1)) -> c7(A__SEL(a__from(mark(z0)), mark(x1)), MARK(from(z0)))
   MARK(sel(sel(z0, z1), x1)) -> c7(A__SEL(a__sel(mark(z0), mark(z1)), mark(x1)), MARK(sel(z0, z1)))
   MARK(sel(s(z0), x1)) -> c7(A__SEL(s(mark(z0)), mark(x1)), MARK(s(z0)))
   MARK(sel(x0, s(z0))) -> c7(MARK(x0))
   MARK(sel(x0, 0)) -> c7(MARK(x0))
   MARK(sel(cons(z0, z1), x1)) -> c7(MARK(cons(z0, z1)))
   MARK(sel(0, x1)) -> c7(A__SEL(0, mark(x1)))
K tuples:none
Defined Rule Symbols:   a__from_1, a__sel_2, mark_1

Defined Pair Symbols:   A__FROM_1, A__SEL_2, MARK_1

Compound Symbols:   c_1, c2_1, c6_2, c8_2, c9_1, c10_1, c3_2, c3_1, c4_2, c4_1, c7_2, c7_1


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

(71) CdtNarrowingProof (BOTH BOUNDS(ID, ID))
Use narrowing to replace MARK(sel(z0, z1)) -> c8(A__SEL(mark(z0), mark(z1)), MARK(z1)) by 
   MARK(sel(x0, from(z0))) -> c8(A__SEL(mark(x0), a__from(mark(z0))), MARK(from(z0)))
   MARK(sel(x0, sel(z0, z1))) -> c8(A__SEL(mark(x0), a__sel(mark(z0), mark(z1))), MARK(sel(z0, z1)))
   MARK(sel(x0, cons(z0, z1))) -> c8(A__SEL(mark(x0), cons(mark(z0), z1)), MARK(cons(z0, z1)))
   MARK(sel(x0, s(z0))) -> c8(A__SEL(mark(x0), s(mark(z0))), MARK(s(z0)))
   MARK(sel(x0, 0)) -> c8(A__SEL(mark(x0), 0), MARK(0))
   MARK(sel(from(z0), x1)) -> c8(A__SEL(a__from(mark(z0)), mark(x1)), MARK(x1))
   MARK(sel(sel(z0, z1), x1)) -> c8(A__SEL(a__sel(mark(z0), mark(z1)), mark(x1)), MARK(x1))
   MARK(sel(cons(z0, z1), x1)) -> c8(A__SEL(cons(mark(z0), z1), mark(x1)), MARK(x1))
   MARK(sel(s(z0), x1)) -> c8(A__SEL(s(mark(z0)), mark(x1)), MARK(x1))
   MARK(sel(0, x1)) -> c8(A__SEL(0, mark(x1)), MARK(x1))

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

(72)
Obligation:
Complexity Dependency Tuples Problem

Rules:
   a__from(z0) -> cons(mark(z0), from(s(z0)))
   a__from(z0) -> from(z0)
   a__sel(0, cons(z0, z1)) -> mark(z0)
   a__sel(s(z0), cons(z1, z2)) -> a__sel(mark(z0), mark(z2))
   a__sel(z0, z1) -> sel(z0, z1)
   mark(from(z0)) -> a__from(mark(z0))
   mark(sel(z0, z1)) -> a__sel(mark(z0), mark(z1))
   mark(cons(z0, z1)) -> cons(mark(z0), z1)
   mark(s(z0)) -> s(mark(z0))
   mark(0) -> 0
Tuples:
   A__FROM(z0) -> c(MARK(z0))
   A__SEL(0, cons(z0, z1)) -> c2(MARK(z0))
   MARK(from(z0)) -> c6(A__FROM(mark(z0)), MARK(z0))
   MARK(cons(z0, z1)) -> c9(MARK(z0))
   MARK(s(z0)) -> c10(MARK(z0))
   A__SEL(s(x0), cons(x1, from(z0))) -> c3(A__SEL(mark(x0), a__from(mark(z0))), MARK(x0))
   A__SEL(s(x0), cons(x1, sel(z0, z1))) -> c3(A__SEL(mark(x0), a__sel(mark(z0), mark(z1))), MARK(x0))
   A__SEL(s(x0), cons(x1, cons(z0, z1))) -> c3(A__SEL(mark(x0), cons(mark(z0), z1)), MARK(x0))
   A__SEL(s(from(z0)), cons(x1, x2)) -> c3(A__SEL(a__from(mark(z0)), mark(x2)), MARK(from(z0)))
   A__SEL(s(sel(z0, z1)), cons(x1, x2)) -> c3(A__SEL(a__sel(mark(z0), mark(z1)), mark(x2)), MARK(sel(z0, z1)))
   A__SEL(s(s(z0)), cons(x1, x2)) -> c3(A__SEL(s(mark(z0)), mark(x2)), MARK(s(z0)))
   A__SEL(s(x0), cons(x1, s(z0))) -> c3(MARK(x0))
   A__SEL(s(x0), cons(x1, 0)) -> c3(MARK(x0))
   A__SEL(s(cons(z0, z1)), cons(x1, x2)) -> c3(MARK(cons(z0, z1)))
   A__SEL(s(0), cons(x1, x2)) -> c3(A__SEL(0, mark(x2)))
   A__SEL(s(x0), cons(x1, from(z0))) -> c4(A__SEL(mark(x0), a__from(mark(z0))), MARK(from(z0)))
   A__SEL(s(x0), cons(x1, sel(z0, z1))) -> c4(A__SEL(mark(x0), a__sel(mark(z0), mark(z1))), MARK(sel(z0, z1)))
   A__SEL(s(x0), cons(x1, cons(z0, z1))) -> c4(A__SEL(mark(x0), cons(mark(z0), z1)), MARK(cons(z0, z1)))
   A__SEL(s(from(z0)), cons(x1, x2)) -> c4(A__SEL(a__from(mark(z0)), mark(x2)), MARK(x2))
   A__SEL(s(sel(z0, z1)), cons(x1, x2)) -> c4(A__SEL(a__sel(mark(z0), mark(z1)), mark(x2)), MARK(x2))
   A__SEL(s(s(z0)), cons(x1, x2)) -> c4(A__SEL(s(mark(z0)), mark(x2)), MARK(x2))
   A__SEL(s(0), cons(x1, x2)) -> c4(A__SEL(0, mark(x2)), MARK(x2))
   A__SEL(s(x0), cons(x1, s(z0))) -> c4(MARK(s(z0)))
   A__SEL(s(cons(z0, z1)), cons(x1, x2)) -> c4(MARK(x2))
   MARK(sel(x0, from(z0))) -> c7(A__SEL(mark(x0), a__from(mark(z0))), MARK(x0))
   MARK(sel(x0, sel(z0, z1))) -> c7(A__SEL(mark(x0), a__sel(mark(z0), mark(z1))), MARK(x0))
   MARK(sel(x0, cons(z0, z1))) -> c7(A__SEL(mark(x0), cons(mark(z0), z1)), MARK(x0))
   MARK(sel(from(z0), x1)) -> c7(A__SEL(a__from(mark(z0)), mark(x1)), MARK(from(z0)))
   MARK(sel(sel(z0, z1), x1)) -> c7(A__SEL(a__sel(mark(z0), mark(z1)), mark(x1)), MARK(sel(z0, z1)))
   MARK(sel(s(z0), x1)) -> c7(A__SEL(s(mark(z0)), mark(x1)), MARK(s(z0)))
   MARK(sel(x0, s(z0))) -> c7(MARK(x0))
   MARK(sel(x0, 0)) -> c7(MARK(x0))
   MARK(sel(cons(z0, z1), x1)) -> c7(MARK(cons(z0, z1)))
   MARK(sel(0, x1)) -> c7(A__SEL(0, mark(x1)))
   MARK(sel(x0, from(z0))) -> c8(A__SEL(mark(x0), a__from(mark(z0))), MARK(from(z0)))
   MARK(sel(x0, sel(z0, z1))) -> c8(A__SEL(mark(x0), a__sel(mark(z0), mark(z1))), MARK(sel(z0, z1)))
   MARK(sel(x0, cons(z0, z1))) -> c8(A__SEL(mark(x0), cons(mark(z0), z1)), MARK(cons(z0, z1)))
   MARK(sel(x0, s(z0))) -> c8(A__SEL(mark(x0), s(mark(z0))), MARK(s(z0)))
   MARK(sel(x0, 0)) -> c8(A__SEL(mark(x0), 0), MARK(0))
   MARK(sel(from(z0), x1)) -> c8(A__SEL(a__from(mark(z0)), mark(x1)), MARK(x1))
   MARK(sel(sel(z0, z1), x1)) -> c8(A__SEL(a__sel(mark(z0), mark(z1)), mark(x1)), MARK(x1))
   MARK(sel(cons(z0, z1), x1)) -> c8(A__SEL(cons(mark(z0), z1), mark(x1)), MARK(x1))
   MARK(sel(s(z0), x1)) -> c8(A__SEL(s(mark(z0)), mark(x1)), MARK(x1))
   MARK(sel(0, x1)) -> c8(A__SEL(0, mark(x1)), MARK(x1))
S tuples:
   A__FROM(z0) -> c(MARK(z0))
   A__SEL(0, cons(z0, z1)) -> c2(MARK(z0))
   MARK(from(z0)) -> c6(A__FROM(mark(z0)), MARK(z0))
   MARK(cons(z0, z1)) -> c9(MARK(z0))
   MARK(s(z0)) -> c10(MARK(z0))
   A__SEL(s(x0), cons(x1, from(z0))) -> c3(A__SEL(mark(x0), a__from(mark(z0))), MARK(x0))
   A__SEL(s(x0), cons(x1, sel(z0, z1))) -> c3(A__SEL(mark(x0), a__sel(mark(z0), mark(z1))), MARK(x0))
   A__SEL(s(x0), cons(x1, cons(z0, z1))) -> c3(A__SEL(mark(x0), cons(mark(z0), z1)), MARK(x0))
   A__SEL(s(from(z0)), cons(x1, x2)) -> c3(A__SEL(a__from(mark(z0)), mark(x2)), MARK(from(z0)))
   A__SEL(s(sel(z0, z1)), cons(x1, x2)) -> c3(A__SEL(a__sel(mark(z0), mark(z1)), mark(x2)), MARK(sel(z0, z1)))
   A__SEL(s(s(z0)), cons(x1, x2)) -> c3(A__SEL(s(mark(z0)), mark(x2)), MARK(s(z0)))
   A__SEL(s(x0), cons(x1, s(z0))) -> c3(MARK(x0))
   A__SEL(s(x0), cons(x1, 0)) -> c3(MARK(x0))
   A__SEL(s(cons(z0, z1)), cons(x1, x2)) -> c3(MARK(cons(z0, z1)))
   A__SEL(s(0), cons(x1, x2)) -> c3(A__SEL(0, mark(x2)))
   A__SEL(s(x0), cons(x1, from(z0))) -> c4(A__SEL(mark(x0), a__from(mark(z0))), MARK(from(z0)))
   A__SEL(s(x0), cons(x1, sel(z0, z1))) -> c4(A__SEL(mark(x0), a__sel(mark(z0), mark(z1))), MARK(sel(z0, z1)))
   A__SEL(s(x0), cons(x1, cons(z0, z1))) -> c4(A__SEL(mark(x0), cons(mark(z0), z1)), MARK(cons(z0, z1)))
   A__SEL(s(from(z0)), cons(x1, x2)) -> c4(A__SEL(a__from(mark(z0)), mark(x2)), MARK(x2))
   A__SEL(s(sel(z0, z1)), cons(x1, x2)) -> c4(A__SEL(a__sel(mark(z0), mark(z1)), mark(x2)), MARK(x2))
   A__SEL(s(s(z0)), cons(x1, x2)) -> c4(A__SEL(s(mark(z0)), mark(x2)), MARK(x2))
   A__SEL(s(0), cons(x1, x2)) -> c4(A__SEL(0, mark(x2)), MARK(x2))
   A__SEL(s(x0), cons(x1, s(z0))) -> c4(MARK(s(z0)))
   A__SEL(s(cons(z0, z1)), cons(x1, x2)) -> c4(MARK(x2))
   MARK(sel(x0, from(z0))) -> c7(A__SEL(mark(x0), a__from(mark(z0))), MARK(x0))
   MARK(sel(x0, sel(z0, z1))) -> c7(A__SEL(mark(x0), a__sel(mark(z0), mark(z1))), MARK(x0))
   MARK(sel(x0, cons(z0, z1))) -> c7(A__SEL(mark(x0), cons(mark(z0), z1)), MARK(x0))
   MARK(sel(from(z0), x1)) -> c7(A__SEL(a__from(mark(z0)), mark(x1)), MARK(from(z0)))
   MARK(sel(sel(z0, z1), x1)) -> c7(A__SEL(a__sel(mark(z0), mark(z1)), mark(x1)), MARK(sel(z0, z1)))
   MARK(sel(s(z0), x1)) -> c7(A__SEL(s(mark(z0)), mark(x1)), MARK(s(z0)))
   MARK(sel(x0, s(z0))) -> c7(MARK(x0))
   MARK(sel(x0, 0)) -> c7(MARK(x0))
   MARK(sel(cons(z0, z1), x1)) -> c7(MARK(cons(z0, z1)))
   MARK(sel(0, x1)) -> c7(A__SEL(0, mark(x1)))
   MARK(sel(x0, from(z0))) -> c8(A__SEL(mark(x0), a__from(mark(z0))), MARK(from(z0)))
   MARK(sel(x0, sel(z0, z1))) -> c8(A__SEL(mark(x0), a__sel(mark(z0), mark(z1))), MARK(sel(z0, z1)))
   MARK(sel(x0, cons(z0, z1))) -> c8(A__SEL(mark(x0), cons(mark(z0), z1)), MARK(cons(z0, z1)))
   MARK(sel(x0, s(z0))) -> c8(A__SEL(mark(x0), s(mark(z0))), MARK(s(z0)))
   MARK(sel(x0, 0)) -> c8(A__SEL(mark(x0), 0), MARK(0))
   MARK(sel(from(z0), x1)) -> c8(A__SEL(a__from(mark(z0)), mark(x1)), MARK(x1))
   MARK(sel(sel(z0, z1), x1)) -> c8(A__SEL(a__sel(mark(z0), mark(z1)), mark(x1)), MARK(x1))
   MARK(sel(cons(z0, z1), x1)) -> c8(A__SEL(cons(mark(z0), z1), mark(x1)), MARK(x1))
   MARK(sel(s(z0), x1)) -> c8(A__SEL(s(mark(z0)), mark(x1)), MARK(x1))
   MARK(sel(0, x1)) -> c8(A__SEL(0, mark(x1)), MARK(x1))
K tuples:none
Defined Rule Symbols:   a__from_1, a__sel_2, mark_1

Defined Pair Symbols:   A__FROM_1, A__SEL_2, MARK_1

Compound Symbols:   c_1, c2_1, c6_2, c9_1, c10_1, c3_2, c3_1, c4_2, c4_1, c7_2, c7_1, c8_2


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

(73) CdtLeafRemovalProof (BOTH BOUNDS(ID, ID))
Removed 1 trailing nodes:
   MARK(sel(x0, 0)) -> c8(A__SEL(mark(x0), 0), MARK(0))

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

(74)
Obligation:
Complexity Dependency Tuples Problem

Rules:
   a__from(z0) -> cons(mark(z0), from(s(z0)))
   a__from(z0) -> from(z0)
   a__sel(0, cons(z0, z1)) -> mark(z0)
   a__sel(s(z0), cons(z1, z2)) -> a__sel(mark(z0), mark(z2))
   a__sel(z0, z1) -> sel(z0, z1)
   mark(from(z0)) -> a__from(mark(z0))
   mark(sel(z0, z1)) -> a__sel(mark(z0), mark(z1))
   mark(cons(z0, z1)) -> cons(mark(z0), z1)
   mark(s(z0)) -> s(mark(z0))
   mark(0) -> 0
Tuples:
   A__FROM(z0) -> c(MARK(z0))
   A__SEL(0, cons(z0, z1)) -> c2(MARK(z0))
   MARK(from(z0)) -> c6(A__FROM(mark(z0)), MARK(z0))
   MARK(cons(z0, z1)) -> c9(MARK(z0))
   MARK(s(z0)) -> c10(MARK(z0))
   A__SEL(s(x0), cons(x1, from(z0))) -> c3(A__SEL(mark(x0), a__from(mark(z0))), MARK(x0))
   A__SEL(s(x0), cons(x1, sel(z0, z1))) -> c3(A__SEL(mark(x0), a__sel(mark(z0), mark(z1))), MARK(x0))
   A__SEL(s(x0), cons(x1, cons(z0, z1))) -> c3(A__SEL(mark(x0), cons(mark(z0), z1)), MARK(x0))
   A__SEL(s(from(z0)), cons(x1, x2)) -> c3(A__SEL(a__from(mark(z0)), mark(x2)), MARK(from(z0)))
   A__SEL(s(sel(z0, z1)), cons(x1, x2)) -> c3(A__SEL(a__sel(mark(z0), mark(z1)), mark(x2)), MARK(sel(z0, z1)))
   A__SEL(s(s(z0)), cons(x1, x2)) -> c3(A__SEL(s(mark(z0)), mark(x2)), MARK(s(z0)))
   A__SEL(s(x0), cons(x1, s(z0))) -> c3(MARK(x0))
   A__SEL(s(x0), cons(x1, 0)) -> c3(MARK(x0))
   A__SEL(s(cons(z0, z1)), cons(x1, x2)) -> c3(MARK(cons(z0, z1)))
   A__SEL(s(0), cons(x1, x2)) -> c3(A__SEL(0, mark(x2)))
   A__SEL(s(x0), cons(x1, from(z0))) -> c4(A__SEL(mark(x0), a__from(mark(z0))), MARK(from(z0)))
   A__SEL(s(x0), cons(x1, sel(z0, z1))) -> c4(A__SEL(mark(x0), a__sel(mark(z0), mark(z1))), MARK(sel(z0, z1)))
   A__SEL(s(x0), cons(x1, cons(z0, z1))) -> c4(A__SEL(mark(x0), cons(mark(z0), z1)), MARK(cons(z0, z1)))
   A__SEL(s(from(z0)), cons(x1, x2)) -> c4(A__SEL(a__from(mark(z0)), mark(x2)), MARK(x2))
   A__SEL(s(sel(z0, z1)), cons(x1, x2)) -> c4(A__SEL(a__sel(mark(z0), mark(z1)), mark(x2)), MARK(x2))
   A__SEL(s(s(z0)), cons(x1, x2)) -> c4(A__SEL(s(mark(z0)), mark(x2)), MARK(x2))
   A__SEL(s(0), cons(x1, x2)) -> c4(A__SEL(0, mark(x2)), MARK(x2))
   A__SEL(s(x0), cons(x1, s(z0))) -> c4(MARK(s(z0)))
   A__SEL(s(cons(z0, z1)), cons(x1, x2)) -> c4(MARK(x2))
   MARK(sel(x0, from(z0))) -> c7(A__SEL(mark(x0), a__from(mark(z0))), MARK(x0))
   MARK(sel(x0, sel(z0, z1))) -> c7(A__SEL(mark(x0), a__sel(mark(z0), mark(z1))), MARK(x0))
   MARK(sel(x0, cons(z0, z1))) -> c7(A__SEL(mark(x0), cons(mark(z0), z1)), MARK(x0))
   MARK(sel(from(z0), x1)) -> c7(A__SEL(a__from(mark(z0)), mark(x1)), MARK(from(z0)))
   MARK(sel(sel(z0, z1), x1)) -> c7(A__SEL(a__sel(mark(z0), mark(z1)), mark(x1)), MARK(sel(z0, z1)))
   MARK(sel(s(z0), x1)) -> c7(A__SEL(s(mark(z0)), mark(x1)), MARK(s(z0)))
   MARK(sel(x0, s(z0))) -> c7(MARK(x0))
   MARK(sel(x0, 0)) -> c7(MARK(x0))
   MARK(sel(cons(z0, z1), x1)) -> c7(MARK(cons(z0, z1)))
   MARK(sel(0, x1)) -> c7(A__SEL(0, mark(x1)))
   MARK(sel(x0, from(z0))) -> c8(A__SEL(mark(x0), a__from(mark(z0))), MARK(from(z0)))
   MARK(sel(x0, sel(z0, z1))) -> c8(A__SEL(mark(x0), a__sel(mark(z0), mark(z1))), MARK(sel(z0, z1)))
   MARK(sel(x0, cons(z0, z1))) -> c8(A__SEL(mark(x0), cons(mark(z0), z1)), MARK(cons(z0, z1)))
   MARK(sel(x0, s(z0))) -> c8(A__SEL(mark(x0), s(mark(z0))), MARK(s(z0)))
   MARK(sel(from(z0), x1)) -> c8(A__SEL(a__from(mark(z0)), mark(x1)), MARK(x1))
   MARK(sel(sel(z0, z1), x1)) -> c8(A__SEL(a__sel(mark(z0), mark(z1)), mark(x1)), MARK(x1))
   MARK(sel(cons(z0, z1), x1)) -> c8(A__SEL(cons(mark(z0), z1), mark(x1)), MARK(x1))
   MARK(sel(s(z0), x1)) -> c8(A__SEL(s(mark(z0)), mark(x1)), MARK(x1))
   MARK(sel(0, x1)) -> c8(A__SEL(0, mark(x1)), MARK(x1))
S tuples:
   A__FROM(z0) -> c(MARK(z0))
   A__SEL(0, cons(z0, z1)) -> c2(MARK(z0))
   MARK(from(z0)) -> c6(A__FROM(mark(z0)), MARK(z0))
   MARK(cons(z0, z1)) -> c9(MARK(z0))
   MARK(s(z0)) -> c10(MARK(z0))
   A__SEL(s(x0), cons(x1, from(z0))) -> c3(A__SEL(mark(x0), a__from(mark(z0))), MARK(x0))
   A__SEL(s(x0), cons(x1, sel(z0, z1))) -> c3(A__SEL(mark(x0), a__sel(mark(z0), mark(z1))), MARK(x0))
   A__SEL(s(x0), cons(x1, cons(z0, z1))) -> c3(A__SEL(mark(x0), cons(mark(z0), z1)), MARK(x0))
   A__SEL(s(from(z0)), cons(x1, x2)) -> c3(A__SEL(a__from(mark(z0)), mark(x2)), MARK(from(z0)))
   A__SEL(s(sel(z0, z1)), cons(x1, x2)) -> c3(A__SEL(a__sel(mark(z0), mark(z1)), mark(x2)), MARK(sel(z0, z1)))
   A__SEL(s(s(z0)), cons(x1, x2)) -> c3(A__SEL(s(mark(z0)), mark(x2)), MARK(s(z0)))
   A__SEL(s(x0), cons(x1, s(z0))) -> c3(MARK(x0))
   A__SEL(s(x0), cons(x1, 0)) -> c3(MARK(x0))
   A__SEL(s(cons(z0, z1)), cons(x1, x2)) -> c3(MARK(cons(z0, z1)))
   A__SEL(s(0), cons(x1, x2)) -> c3(A__SEL(0, mark(x2)))
   A__SEL(s(x0), cons(x1, from(z0))) -> c4(A__SEL(mark(x0), a__from(mark(z0))), MARK(from(z0)))
   A__SEL(s(x0), cons(x1, sel(z0, z1))) -> c4(A__SEL(mark(x0), a__sel(mark(z0), mark(z1))), MARK(sel(z0, z1)))
   A__SEL(s(x0), cons(x1, cons(z0, z1))) -> c4(A__SEL(mark(x0), cons(mark(z0), z1)), MARK(cons(z0, z1)))
   A__SEL(s(from(z0)), cons(x1, x2)) -> c4(A__SEL(a__from(mark(z0)), mark(x2)), MARK(x2))
   A__SEL(s(sel(z0, z1)), cons(x1, x2)) -> c4(A__SEL(a__sel(mark(z0), mark(z1)), mark(x2)), MARK(x2))
   A__SEL(s(s(z0)), cons(x1, x2)) -> c4(A__SEL(s(mark(z0)), mark(x2)), MARK(x2))
   A__SEL(s(0), cons(x1, x2)) -> c4(A__SEL(0, mark(x2)), MARK(x2))
   A__SEL(s(x0), cons(x1, s(z0))) -> c4(MARK(s(z0)))
   A__SEL(s(cons(z0, z1)), cons(x1, x2)) -> c4(MARK(x2))
   MARK(sel(x0, from(z0))) -> c7(A__SEL(mark(x0), a__from(mark(z0))), MARK(x0))
   MARK(sel(x0, sel(z0, z1))) -> c7(A__SEL(mark(x0), a__sel(mark(z0), mark(z1))), MARK(x0))
   MARK(sel(x0, cons(z0, z1))) -> c7(A__SEL(mark(x0), cons(mark(z0), z1)), MARK(x0))
   MARK(sel(from(z0), x1)) -> c7(A__SEL(a__from(mark(z0)), mark(x1)), MARK(from(z0)))
   MARK(sel(sel(z0, z1), x1)) -> c7(A__SEL(a__sel(mark(z0), mark(z1)), mark(x1)), MARK(sel(z0, z1)))
   MARK(sel(s(z0), x1)) -> c7(A__SEL(s(mark(z0)), mark(x1)), MARK(s(z0)))
   MARK(sel(x0, s(z0))) -> c7(MARK(x0))
   MARK(sel(x0, 0)) -> c7(MARK(x0))
   MARK(sel(cons(z0, z1), x1)) -> c7(MARK(cons(z0, z1)))
   MARK(sel(0, x1)) -> c7(A__SEL(0, mark(x1)))
   MARK(sel(x0, from(z0))) -> c8(A__SEL(mark(x0), a__from(mark(z0))), MARK(from(z0)))
   MARK(sel(x0, sel(z0, z1))) -> c8(A__SEL(mark(x0), a__sel(mark(z0), mark(z1))), MARK(sel(z0, z1)))
   MARK(sel(x0, cons(z0, z1))) -> c8(A__SEL(mark(x0), cons(mark(z0), z1)), MARK(cons(z0, z1)))
   MARK(sel(x0, s(z0))) -> c8(A__SEL(mark(x0), s(mark(z0))), MARK(s(z0)))
   MARK(sel(from(z0), x1)) -> c8(A__SEL(a__from(mark(z0)), mark(x1)), MARK(x1))
   MARK(sel(sel(z0, z1), x1)) -> c8(A__SEL(a__sel(mark(z0), mark(z1)), mark(x1)), MARK(x1))
   MARK(sel(cons(z0, z1), x1)) -> c8(A__SEL(cons(mark(z0), z1), mark(x1)), MARK(x1))
   MARK(sel(s(z0), x1)) -> c8(A__SEL(s(mark(z0)), mark(x1)), MARK(x1))
   MARK(sel(0, x1)) -> c8(A__SEL(0, mark(x1)), MARK(x1))
K tuples:none
Defined Rule Symbols:   a__from_1, a__sel_2, mark_1

Defined Pair Symbols:   A__FROM_1, A__SEL_2, MARK_1

Compound Symbols:   c_1, c2_1, c6_2, c9_1, c10_1, c3_2, c3_1, c4_2, c4_1, c7_2, c7_1, c8_2


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

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

(76)
Obligation:
Complexity Dependency Tuples Problem

Rules:
   a__from(z0) -> cons(mark(z0), from(s(z0)))
   a__from(z0) -> from(z0)
   a__sel(0, cons(z0, z1)) -> mark(z0)
   a__sel(s(z0), cons(z1, z2)) -> a__sel(mark(z0), mark(z2))
   a__sel(z0, z1) -> sel(z0, z1)
   mark(from(z0)) -> a__from(mark(z0))
   mark(sel(z0, z1)) -> a__sel(mark(z0), mark(z1))
   mark(cons(z0, z1)) -> cons(mark(z0), z1)
   mark(s(z0)) -> s(mark(z0))
   mark(0) -> 0
Tuples:
   A__FROM(z0) -> c(MARK(z0))
   A__SEL(0, cons(z0, z1)) -> c2(MARK(z0))
   MARK(from(z0)) -> c6(A__FROM(mark(z0)), MARK(z0))
   MARK(cons(z0, z1)) -> c9(MARK(z0))
   MARK(s(z0)) -> c10(MARK(z0))
   A__SEL(s(x0), cons(x1, from(z0))) -> c3(A__SEL(mark(x0), a__from(mark(z0))), MARK(x0))
   A__SEL(s(x0), cons(x1, sel(z0, z1))) -> c3(A__SEL(mark(x0), a__sel(mark(z0), mark(z1))), MARK(x0))
   A__SEL(s(x0), cons(x1, cons(z0, z1))) -> c3(A__SEL(mark(x0), cons(mark(z0), z1)), MARK(x0))
   A__SEL(s(from(z0)), cons(x1, x2)) -> c3(A__SEL(a__from(mark(z0)), mark(x2)), MARK(from(z0)))
   A__SEL(s(sel(z0, z1)), cons(x1, x2)) -> c3(A__SEL(a__sel(mark(z0), mark(z1)), mark(x2)), MARK(sel(z0, z1)))
   A__SEL(s(s(z0)), cons(x1, x2)) -> c3(A__SEL(s(mark(z0)), mark(x2)), MARK(s(z0)))
   A__SEL(s(x0), cons(x1, s(z0))) -> c3(MARK(x0))
   A__SEL(s(x0), cons(x1, 0)) -> c3(MARK(x0))
   A__SEL(s(cons(z0, z1)), cons(x1, x2)) -> c3(MARK(cons(z0, z1)))
   A__SEL(s(0), cons(x1, x2)) -> c3(A__SEL(0, mark(x2)))
   A__SEL(s(x0), cons(x1, from(z0))) -> c4(A__SEL(mark(x0), a__from(mark(z0))), MARK(from(z0)))
   A__SEL(s(x0), cons(x1, sel(z0, z1))) -> c4(A__SEL(mark(x0), a__sel(mark(z0), mark(z1))), MARK(sel(z0, z1)))
   A__SEL(s(x0), cons(x1, cons(z0, z1))) -> c4(A__SEL(mark(x0), cons(mark(z0), z1)), MARK(cons(z0, z1)))
   A__SEL(s(from(z0)), cons(x1, x2)) -> c4(A__SEL(a__from(mark(z0)), mark(x2)), MARK(x2))
   A__SEL(s(sel(z0, z1)), cons(x1, x2)) -> c4(A__SEL(a__sel(mark(z0), mark(z1)), mark(x2)), MARK(x2))
   A__SEL(s(s(z0)), cons(x1, x2)) -> c4(A__SEL(s(mark(z0)), mark(x2)), MARK(x2))
   A__SEL(s(0), cons(x1, x2)) -> c4(A__SEL(0, mark(x2)), MARK(x2))
   A__SEL(s(x0), cons(x1, s(z0))) -> c4(MARK(s(z0)))
   A__SEL(s(cons(z0, z1)), cons(x1, x2)) -> c4(MARK(x2))
   MARK(sel(x0, from(z0))) -> c7(A__SEL(mark(x0), a__from(mark(z0))), MARK(x0))
   MARK(sel(x0, sel(z0, z1))) -> c7(A__SEL(mark(x0), a__sel(mark(z0), mark(z1))), MARK(x0))
   MARK(sel(x0, cons(z0, z1))) -> c7(A__SEL(mark(x0), cons(mark(z0), z1)), MARK(x0))
   MARK(sel(from(z0), x1)) -> c7(A__SEL(a__from(mark(z0)), mark(x1)), MARK(from(z0)))
   MARK(sel(sel(z0, z1), x1)) -> c7(A__SEL(a__sel(mark(z0), mark(z1)), mark(x1)), MARK(sel(z0, z1)))
   MARK(sel(s(z0), x1)) -> c7(A__SEL(s(mark(z0)), mark(x1)), MARK(s(z0)))
   MARK(sel(x0, s(z0))) -> c7(MARK(x0))
   MARK(sel(x0, 0)) -> c7(MARK(x0))
   MARK(sel(cons(z0, z1), x1)) -> c7(MARK(cons(z0, z1)))
   MARK(sel(0, x1)) -> c7(A__SEL(0, mark(x1)))
   MARK(sel(x0, from(z0))) -> c8(A__SEL(mark(x0), a__from(mark(z0))), MARK(from(z0)))
   MARK(sel(x0, sel(z0, z1))) -> c8(A__SEL(mark(x0), a__sel(mark(z0), mark(z1))), MARK(sel(z0, z1)))
   MARK(sel(x0, cons(z0, z1))) -> c8(A__SEL(mark(x0), cons(mark(z0), z1)), MARK(cons(z0, z1)))
   MARK(sel(from(z0), x1)) -> c8(A__SEL(a__from(mark(z0)), mark(x1)), MARK(x1))
   MARK(sel(sel(z0, z1), x1)) -> c8(A__SEL(a__sel(mark(z0), mark(z1)), mark(x1)), MARK(x1))
   MARK(sel(s(z0), x1)) -> c8(A__SEL(s(mark(z0)), mark(x1)), MARK(x1))
   MARK(sel(0, x1)) -> c8(A__SEL(0, mark(x1)), MARK(x1))
   MARK(sel(x0, s(z0))) -> c8(MARK(s(z0)))
   MARK(sel(cons(z0, z1), x1)) -> c8(MARK(x1))
S tuples:
   A__FROM(z0) -> c(MARK(z0))
   A__SEL(0, cons(z0, z1)) -> c2(MARK(z0))
   MARK(from(z0)) -> c6(A__FROM(mark(z0)), MARK(z0))
   MARK(cons(z0, z1)) -> c9(MARK(z0))
   MARK(s(z0)) -> c10(MARK(z0))
   A__SEL(s(x0), cons(x1, from(z0))) -> c3(A__SEL(mark(x0), a__from(mark(z0))), MARK(x0))
   A__SEL(s(x0), cons(x1, sel(z0, z1))) -> c3(A__SEL(mark(x0), a__sel(mark(z0), mark(z1))), MARK(x0))
   A__SEL(s(x0), cons(x1, cons(z0, z1))) -> c3(A__SEL(mark(x0), cons(mark(z0), z1)), MARK(x0))
   A__SEL(s(from(z0)), cons(x1, x2)) -> c3(A__SEL(a__from(mark(z0)), mark(x2)), MARK(from(z0)))
   A__SEL(s(sel(z0, z1)), cons(x1, x2)) -> c3(A__SEL(a__sel(mark(z0), mark(z1)), mark(x2)), MARK(sel(z0, z1)))
   A__SEL(s(s(z0)), cons(x1, x2)) -> c3(A__SEL(s(mark(z0)), mark(x2)), MARK(s(z0)))
   A__SEL(s(x0), cons(x1, s(z0))) -> c3(MARK(x0))
   A__SEL(s(x0), cons(x1, 0)) -> c3(MARK(x0))
   A__SEL(s(cons(z0, z1)), cons(x1, x2)) -> c3(MARK(cons(z0, z1)))
   A__SEL(s(0), cons(x1, x2)) -> c3(A__SEL(0, mark(x2)))
   A__SEL(s(x0), cons(x1, from(z0))) -> c4(A__SEL(mark(x0), a__from(mark(z0))), MARK(from(z0)))
   A__SEL(s(x0), cons(x1, sel(z0, z1))) -> c4(A__SEL(mark(x0), a__sel(mark(z0), mark(z1))), MARK(sel(z0, z1)))
   A__SEL(s(x0), cons(x1, cons(z0, z1))) -> c4(A__SEL(mark(x0), cons(mark(z0), z1)), MARK(cons(z0, z1)))
   A__SEL(s(from(z0)), cons(x1, x2)) -> c4(A__SEL(a__from(mark(z0)), mark(x2)), MARK(x2))
   A__SEL(s(sel(z0, z1)), cons(x1, x2)) -> c4(A__SEL(a__sel(mark(z0), mark(z1)), mark(x2)), MARK(x2))
   A__SEL(s(s(z0)), cons(x1, x2)) -> c4(A__SEL(s(mark(z0)), mark(x2)), MARK(x2))
   A__SEL(s(0), cons(x1, x2)) -> c4(A__SEL(0, mark(x2)), MARK(x2))
   A__SEL(s(x0), cons(x1, s(z0))) -> c4(MARK(s(z0)))
   A__SEL(s(cons(z0, z1)), cons(x1, x2)) -> c4(MARK(x2))
   MARK(sel(x0, from(z0))) -> c7(A__SEL(mark(x0), a__from(mark(z0))), MARK(x0))
   MARK(sel(x0, sel(z0, z1))) -> c7(A__SEL(mark(x0), a__sel(mark(z0), mark(z1))), MARK(x0))
   MARK(sel(x0, cons(z0, z1))) -> c7(A__SEL(mark(x0), cons(mark(z0), z1)), MARK(x0))
   MARK(sel(from(z0), x1)) -> c7(A__SEL(a__from(mark(z0)), mark(x1)), MARK(from(z0)))
   MARK(sel(sel(z0, z1), x1)) -> c7(A__SEL(a__sel(mark(z0), mark(z1)), mark(x1)), MARK(sel(z0, z1)))
   MARK(sel(s(z0), x1)) -> c7(A__SEL(s(mark(z0)), mark(x1)), MARK(s(z0)))
   MARK(sel(x0, s(z0))) -> c7(MARK(x0))
   MARK(sel(x0, 0)) -> c7(MARK(x0))
   MARK(sel(cons(z0, z1), x1)) -> c7(MARK(cons(z0, z1)))
   MARK(sel(0, x1)) -> c7(A__SEL(0, mark(x1)))
   MARK(sel(x0, from(z0))) -> c8(A__SEL(mark(x0), a__from(mark(z0))), MARK(from(z0)))
   MARK(sel(x0, sel(z0, z1))) -> c8(A__SEL(mark(x0), a__sel(mark(z0), mark(z1))), MARK(sel(z0, z1)))
   MARK(sel(x0, cons(z0, z1))) -> c8(A__SEL(mark(x0), cons(mark(z0), z1)), MARK(cons(z0, z1)))
   MARK(sel(from(z0), x1)) -> c8(A__SEL(a__from(mark(z0)), mark(x1)), MARK(x1))
   MARK(sel(sel(z0, z1), x1)) -> c8(A__SEL(a__sel(mark(z0), mark(z1)), mark(x1)), MARK(x1))
   MARK(sel(s(z0), x1)) -> c8(A__SEL(s(mark(z0)), mark(x1)), MARK(x1))
   MARK(sel(0, x1)) -> c8(A__SEL(0, mark(x1)), MARK(x1))
   MARK(sel(x0, s(z0))) -> c8(MARK(s(z0)))
   MARK(sel(cons(z0, z1), x1)) -> c8(MARK(x1))
K tuples:none
Defined Rule Symbols:   a__from_1, a__sel_2, mark_1

Defined Pair Symbols:   A__FROM_1, A__SEL_2, MARK_1

Compound Symbols:   c_1, c2_1, c6_2, c9_1, c10_1, c3_2, c3_1, c4_2, c4_1, c7_2, c7_1, c8_2, c8_1


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

(77) CdtNarrowingProof (BOTH BOUNDS(ID, ID))
Use narrowing to replace A__SEL(s(x0), cons(x1, from(z0))) -> c3(A__SEL(mark(x0), a__from(mark(z0))), MARK(x0)) by 
   A__SEL(s(x0), cons(x1, from(x2))) -> c3(A__SEL(mark(x0), cons(mark(mark(x2)), from(s(mark(x2))))), MARK(x0))
   A__SEL(s(x0), cons(x1, from(x2))) -> c3(A__SEL(mark(x0), from(mark(x2))), MARK(x0))
   A__SEL(s(x0), cons(x1, from(from(z0)))) -> c3(A__SEL(mark(x0), a__from(a__from(mark(z0)))), MARK(x0))
   A__SEL(s(x0), cons(x1, from(sel(z0, z1)))) -> c3(A__SEL(mark(x0), a__from(a__sel(mark(z0), mark(z1)))), MARK(x0))
   A__SEL(s(x0), cons(x1, from(cons(z0, z1)))) -> c3(A__SEL(mark(x0), a__from(cons(mark(z0), z1))), MARK(x0))
   A__SEL(s(x0), cons(x1, from(s(z0)))) -> c3(A__SEL(mark(x0), a__from(s(mark(z0)))), MARK(x0))
   A__SEL(s(x0), cons(x1, from(0))) -> c3(A__SEL(mark(x0), a__from(0)), MARK(x0))
   A__SEL(s(from(z0)), cons(x1, from(x2))) -> c3(A__SEL(a__from(mark(z0)), a__from(mark(x2))), MARK(from(z0)))
   A__SEL(s(sel(z0, z1)), cons(x1, from(x2))) -> c3(A__SEL(a__sel(mark(z0), mark(z1)), a__from(mark(x2))), MARK(sel(z0, z1)))
   A__SEL(s(cons(z0, z1)), cons(x1, from(x2))) -> c3(A__SEL(cons(mark(z0), z1), a__from(mark(x2))), MARK(cons(z0, z1)))
   A__SEL(s(s(z0)), cons(x1, from(x2))) -> c3(A__SEL(s(mark(z0)), a__from(mark(x2))), MARK(s(z0)))
   A__SEL(s(0), cons(x1, from(x2))) -> c3(A__SEL(0, a__from(mark(x2))), MARK(0))

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

(78)
Obligation:
Complexity Dependency Tuples Problem

Rules:
   a__from(z0) -> cons(mark(z0), from(s(z0)))
   a__from(z0) -> from(z0)
   a__sel(0, cons(z0, z1)) -> mark(z0)
   a__sel(s(z0), cons(z1, z2)) -> a__sel(mark(z0), mark(z2))
   a__sel(z0, z1) -> sel(z0, z1)
   mark(from(z0)) -> a__from(mark(z0))
   mark(sel(z0, z1)) -> a__sel(mark(z0), mark(z1))
   mark(cons(z0, z1)) -> cons(mark(z0), z1)
   mark(s(z0)) -> s(mark(z0))
   mark(0) -> 0
Tuples:
   A__FROM(z0) -> c(MARK(z0))
   A__SEL(0, cons(z0, z1)) -> c2(MARK(z0))
   MARK(from(z0)) -> c6(A__FROM(mark(z0)), MARK(z0))
   MARK(cons(z0, z1)) -> c9(MARK(z0))
   MARK(s(z0)) -> c10(MARK(z0))
   A__SEL(s(x0), cons(x1, sel(z0, z1))) -> c3(A__SEL(mark(x0), a__sel(mark(z0), mark(z1))), MARK(x0))
   A__SEL(s(x0), cons(x1, cons(z0, z1))) -> c3(A__SEL(mark(x0), cons(mark(z0), z1)), MARK(x0))
   A__SEL(s(from(z0)), cons(x1, x2)) -> c3(A__SEL(a__from(mark(z0)), mark(x2)), MARK(from(z0)))
   A__SEL(s(sel(z0, z1)), cons(x1, x2)) -> c3(A__SEL(a__sel(mark(z0), mark(z1)), mark(x2)), MARK(sel(z0, z1)))
   A__SEL(s(s(z0)), cons(x1, x2)) -> c3(A__SEL(s(mark(z0)), mark(x2)), MARK(s(z0)))
   A__SEL(s(x0), cons(x1, s(z0))) -> c3(MARK(x0))
   A__SEL(s(x0), cons(x1, 0)) -> c3(MARK(x0))
   A__SEL(s(cons(z0, z1)), cons(x1, x2)) -> c3(MARK(cons(z0, z1)))
   A__SEL(s(0), cons(x1, x2)) -> c3(A__SEL(0, mark(x2)))
   A__SEL(s(x0), cons(x1, from(z0))) -> c4(A__SEL(mark(x0), a__from(mark(z0))), MARK(from(z0)))
   A__SEL(s(x0), cons(x1, sel(z0, z1))) -> c4(A__SEL(mark(x0), a__sel(mark(z0), mark(z1))), MARK(sel(z0, z1)))
   A__SEL(s(x0), cons(x1, cons(z0, z1))) -> c4(A__SEL(mark(x0), cons(mark(z0), z1)), MARK(cons(z0, z1)))
   A__SEL(s(from(z0)), cons(x1, x2)) -> c4(A__SEL(a__from(mark(z0)), mark(x2)), MARK(x2))
   A__SEL(s(sel(z0, z1)), cons(x1, x2)) -> c4(A__SEL(a__sel(mark(z0), mark(z1)), mark(x2)), MARK(x2))
   A__SEL(s(s(z0)), cons(x1, x2)) -> c4(A__SEL(s(mark(z0)), mark(x2)), MARK(x2))
   A__SEL(s(0), cons(x1, x2)) -> c4(A__SEL(0, mark(x2)), MARK(x2))
   A__SEL(s(x0), cons(x1, s(z0))) -> c4(MARK(s(z0)))
   A__SEL(s(cons(z0, z1)), cons(x1, x2)) -> c4(MARK(x2))
   MARK(sel(x0, from(z0))) -> c7(A__SEL(mark(x0), a__from(mark(z0))), MARK(x0))
   MARK(sel(x0, sel(z0, z1))) -> c7(A__SEL(mark(x0), a__sel(mark(z0), mark(z1))), MARK(x0))
   MARK(sel(x0, cons(z0, z1))) -> c7(A__SEL(mark(x0), cons(mark(z0), z1)), MARK(x0))
   MARK(sel(from(z0), x1)) -> c7(A__SEL(a__from(mark(z0)), mark(x1)), MARK(from(z0)))
   MARK(sel(sel(z0, z1), x1)) -> c7(A__SEL(a__sel(mark(z0), mark(z1)), mark(x1)), MARK(sel(z0, z1)))
   MARK(sel(s(z0), x1)) -> c7(A__SEL(s(mark(z0)), mark(x1)), MARK(s(z0)))
   MARK(sel(x0, s(z0))) -> c7(MARK(x0))
   MARK(sel(x0, 0)) -> c7(MARK(x0))
   MARK(sel(cons(z0, z1), x1)) -> c7(MARK(cons(z0, z1)))
   MARK(sel(0, x1)) -> c7(A__SEL(0, mark(x1)))
   MARK(sel(x0, from(z0))) -> c8(A__SEL(mark(x0), a__from(mark(z0))), MARK(from(z0)))
   MARK(sel(x0, sel(z0, z1))) -> c8(A__SEL(mark(x0), a__sel(mark(z0), mark(z1))), MARK(sel(z0, z1)))
   MARK(sel(x0, cons(z0, z1))) -> c8(A__SEL(mark(x0), cons(mark(z0), z1)), MARK(cons(z0, z1)))
   MARK(sel(from(z0), x1)) -> c8(A__SEL(a__from(mark(z0)), mark(x1)), MARK(x1))
   MARK(sel(sel(z0, z1), x1)) -> c8(A__SEL(a__sel(mark(z0), mark(z1)), mark(x1)), MARK(x1))
   MARK(sel(s(z0), x1)) -> c8(A__SEL(s(mark(z0)), mark(x1)), MARK(x1))
   MARK(sel(0, x1)) -> c8(A__SEL(0, mark(x1)), MARK(x1))
   MARK(sel(x0, s(z0))) -> c8(MARK(s(z0)))
   MARK(sel(cons(z0, z1), x1)) -> c8(MARK(x1))
   A__SEL(s(x0), cons(x1, from(x2))) -> c3(A__SEL(mark(x0), cons(mark(mark(x2)), from(s(mark(x2))))), MARK(x0))
   A__SEL(s(x0), cons(x1, from(x2))) -> c3(A__SEL(mark(x0), from(mark(x2))), MARK(x0))
   A__SEL(s(x0), cons(x1, from(from(z0)))) -> c3(A__SEL(mark(x0), a__from(a__from(mark(z0)))), MARK(x0))
   A__SEL(s(x0), cons(x1, from(sel(z0, z1)))) -> c3(A__SEL(mark(x0), a__from(a__sel(mark(z0), mark(z1)))), MARK(x0))
   A__SEL(s(x0), cons(x1, from(cons(z0, z1)))) -> c3(A__SEL(mark(x0), a__from(cons(mark(z0), z1))), MARK(x0))
   A__SEL(s(x0), cons(x1, from(s(z0)))) -> c3(A__SEL(mark(x0), a__from(s(mark(z0)))), MARK(x0))
   A__SEL(s(x0), cons(x1, from(0))) -> c3(A__SEL(mark(x0), a__from(0)), MARK(x0))
   A__SEL(s(from(z0)), cons(x1, from(x2))) -> c3(A__SEL(a__from(mark(z0)), a__from(mark(x2))), MARK(from(z0)))
   A__SEL(s(sel(z0, z1)), cons(x1, from(x2))) -> c3(A__SEL(a__sel(mark(z0), mark(z1)), a__from(mark(x2))), MARK(sel(z0, z1)))
   A__SEL(s(cons(z0, z1)), cons(x1, from(x2))) -> c3(A__SEL(cons(mark(z0), z1), a__from(mark(x2))), MARK(cons(z0, z1)))
   A__SEL(s(s(z0)), cons(x1, from(x2))) -> c3(A__SEL(s(mark(z0)), a__from(mark(x2))), MARK(s(z0)))
   A__SEL(s(0), cons(x1, from(x2))) -> c3(A__SEL(0, a__from(mark(x2))), MARK(0))
S tuples:
   A__FROM(z0) -> c(MARK(z0))
   A__SEL(0, cons(z0, z1)) -> c2(MARK(z0))
   MARK(from(z0)) -> c6(A__FROM(mark(z0)), MARK(z0))
   MARK(cons(z0, z1)) -> c9(MARK(z0))
   MARK(s(z0)) -> c10(MARK(z0))
   A__SEL(s(x0), cons(x1, sel(z0, z1))) -> c3(A__SEL(mark(x0), a__sel(mark(z0), mark(z1))), MARK(x0))
   A__SEL(s(x0), cons(x1, cons(z0, z1))) -> c3(A__SEL(mark(x0), cons(mark(z0), z1)), MARK(x0))
   A__SEL(s(from(z0)), cons(x1, x2)) -> c3(A__SEL(a__from(mark(z0)), mark(x2)), MARK(from(z0)))
   A__SEL(s(sel(z0, z1)), cons(x1, x2)) -> c3(A__SEL(a__sel(mark(z0), mark(z1)), mark(x2)), MARK(sel(z0, z1)))
   A__SEL(s(s(z0)), cons(x1, x2)) -> c3(A__SEL(s(mark(z0)), mark(x2)), MARK(s(z0)))
   A__SEL(s(x0), cons(x1, s(z0))) -> c3(MARK(x0))
   A__SEL(s(x0), cons(x1, 0)) -> c3(MARK(x0))
   A__SEL(s(cons(z0, z1)), cons(x1, x2)) -> c3(MARK(cons(z0, z1)))
   A__SEL(s(0), cons(x1, x2)) -> c3(A__SEL(0, mark(x2)))
   A__SEL(s(x0), cons(x1, from(z0))) -> c4(A__SEL(mark(x0), a__from(mark(z0))), MARK(from(z0)))
   A__SEL(s(x0), cons(x1, sel(z0, z1))) -> c4(A__SEL(mark(x0), a__sel(mark(z0), mark(z1))), MARK(sel(z0, z1)))
   A__SEL(s(x0), cons(x1, cons(z0, z1))) -> c4(A__SEL(mark(x0), cons(mark(z0), z1)), MARK(cons(z0, z1)))
   A__SEL(s(from(z0)), cons(x1, x2)) -> c4(A__SEL(a__from(mark(z0)), mark(x2)), MARK(x2))
   A__SEL(s(sel(z0, z1)), cons(x1, x2)) -> c4(A__SEL(a__sel(mark(z0), mark(z1)), mark(x2)), MARK(x2))
   A__SEL(s(s(z0)), cons(x1, x2)) -> c4(A__SEL(s(mark(z0)), mark(x2)), MARK(x2))
   A__SEL(s(0), cons(x1, x2)) -> c4(A__SEL(0, mark(x2)), MARK(x2))
   A__SEL(s(x0), cons(x1, s(z0))) -> c4(MARK(s(z0)))
   A__SEL(s(cons(z0, z1)), cons(x1, x2)) -> c4(MARK(x2))
   MARK(sel(x0, from(z0))) -> c7(A__SEL(mark(x0), a__from(mark(z0))), MARK(x0))
   MARK(sel(x0, sel(z0, z1))) -> c7(A__SEL(mark(x0), a__sel(mark(z0), mark(z1))), MARK(x0))
   MARK(sel(x0, cons(z0, z1))) -> c7(A__SEL(mark(x0), cons(mark(z0), z1)), MARK(x0))
   MARK(sel(from(z0), x1)) -> c7(A__SEL(a__from(mark(z0)), mark(x1)), MARK(from(z0)))
   MARK(sel(sel(z0, z1), x1)) -> c7(A__SEL(a__sel(mark(z0), mark(z1)), mark(x1)), MARK(sel(z0, z1)))
   MARK(sel(s(z0), x1)) -> c7(A__SEL(s(mark(z0)), mark(x1)), MARK(s(z0)))
   MARK(sel(x0, s(z0))) -> c7(MARK(x0))
   MARK(sel(x0, 0)) -> c7(MARK(x0))
   MARK(sel(cons(z0, z1), x1)) -> c7(MARK(cons(z0, z1)))
   MARK(sel(0, x1)) -> c7(A__SEL(0, mark(x1)))
   MARK(sel(x0, from(z0))) -> c8(A__SEL(mark(x0), a__from(mark(z0))), MARK(from(z0)))
   MARK(sel(x0, sel(z0, z1))) -> c8(A__SEL(mark(x0), a__sel(mark(z0), mark(z1))), MARK(sel(z0, z1)))
   MARK(sel(x0, cons(z0, z1))) -> c8(A__SEL(mark(x0), cons(mark(z0), z1)), MARK(cons(z0, z1)))
   MARK(sel(from(z0), x1)) -> c8(A__SEL(a__from(mark(z0)), mark(x1)), MARK(x1))
   MARK(sel(sel(z0, z1), x1)) -> c8(A__SEL(a__sel(mark(z0), mark(z1)), mark(x1)), MARK(x1))
   MARK(sel(s(z0), x1)) -> c8(A__SEL(s(mark(z0)), mark(x1)), MARK(x1))
   MARK(sel(0, x1)) -> c8(A__SEL(0, mark(x1)), MARK(x1))
   MARK(sel(x0, s(z0))) -> c8(MARK(s(z0)))
   MARK(sel(cons(z0, z1), x1)) -> c8(MARK(x1))
   A__SEL(s(x0), cons(x1, from(x2))) -> c3(A__SEL(mark(x0), cons(mark(mark(x2)), from(s(mark(x2))))), MARK(x0))
   A__SEL(s(x0), cons(x1, from(x2))) -> c3(A__SEL(mark(x0), from(mark(x2))), MARK(x0))
   A__SEL(s(x0), cons(x1, from(from(z0)))) -> c3(A__SEL(mark(x0), a__from(a__from(mark(z0)))), MARK(x0))
   A__SEL(s(x0), cons(x1, from(sel(z0, z1)))) -> c3(A__SEL(mark(x0), a__from(a__sel(mark(z0), mark(z1)))), MARK(x0))
   A__SEL(s(x0), cons(x1, from(cons(z0, z1)))) -> c3(A__SEL(mark(x0), a__from(cons(mark(z0), z1))), MARK(x0))
   A__SEL(s(x0), cons(x1, from(s(z0)))) -> c3(A__SEL(mark(x0), a__from(s(mark(z0)))), MARK(x0))
   A__SEL(s(x0), cons(x1, from(0))) -> c3(A__SEL(mark(x0), a__from(0)), MARK(x0))
   A__SEL(s(from(z0)), cons(x1, from(x2))) -> c3(A__SEL(a__from(mark(z0)), a__from(mark(x2))), MARK(from(z0)))
   A__SEL(s(sel(z0, z1)), cons(x1, from(x2))) -> c3(A__SEL(a__sel(mark(z0), mark(z1)), a__from(mark(x2))), MARK(sel(z0, z1)))
   A__SEL(s(cons(z0, z1)), cons(x1, from(x2))) -> c3(A__SEL(cons(mark(z0), z1), a__from(mark(x2))), MARK(cons(z0, z1)))
   A__SEL(s(s(z0)), cons(x1, from(x2))) -> c3(A__SEL(s(mark(z0)), a__from(mark(x2))), MARK(s(z0)))
   A__SEL(s(0), cons(x1, from(x2))) -> c3(A__SEL(0, a__from(mark(x2))), MARK(0))
K tuples:none
Defined Rule Symbols:   a__from_1, a__sel_2, mark_1

Defined Pair Symbols:   A__FROM_1, A__SEL_2, MARK_1

Compound Symbols:   c_1, c2_1, c6_2, c9_1, c10_1, c3_2, c3_1, c4_2, c4_1, c7_2, c7_1, c8_2, c8_1


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

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

(80)
Obligation:
Complexity Dependency Tuples Problem

Rules:
   a__from(z0) -> cons(mark(z0), from(s(z0)))
   a__from(z0) -> from(z0)
   a__sel(0, cons(z0, z1)) -> mark(z0)
   a__sel(s(z0), cons(z1, z2)) -> a__sel(mark(z0), mark(z2))
   a__sel(z0, z1) -> sel(z0, z1)
   mark(from(z0)) -> a__from(mark(z0))
   mark(sel(z0, z1)) -> a__sel(mark(z0), mark(z1))
   mark(cons(z0, z1)) -> cons(mark(z0), z1)
   mark(s(z0)) -> s(mark(z0))
   mark(0) -> 0
Tuples:
   A__FROM(z0) -> c(MARK(z0))
   A__SEL(0, cons(z0, z1)) -> c2(MARK(z0))
   MARK(from(z0)) -> c6(A__FROM(mark(z0)), MARK(z0))
   MARK(cons(z0, z1)) -> c9(MARK(z0))
   MARK(s(z0)) -> c10(MARK(z0))
   A__SEL(s(x0), cons(x1, sel(z0, z1))) -> c3(A__SEL(mark(x0), a__sel(mark(z0), mark(z1))), MARK(x0))
   A__SEL(s(x0), cons(x1, cons(z0, z1))) -> c3(A__SEL(mark(x0), cons(mark(z0), z1)), MARK(x0))
   A__SEL(s(from(z0)), cons(x1, x2)) -> c3(A__SEL(a__from(mark(z0)), mark(x2)), MARK(from(z0)))
   A__SEL(s(sel(z0, z1)), cons(x1, x2)) -> c3(A__SEL(a__sel(mark(z0), mark(z1)), mark(x2)), MARK(sel(z0, z1)))
   A__SEL(s(s(z0)), cons(x1, x2)) -> c3(A__SEL(s(mark(z0)), mark(x2)), MARK(s(z0)))
   A__SEL(s(x0), cons(x1, s(z0))) -> c3(MARK(x0))
   A__SEL(s(x0), cons(x1, 0)) -> c3(MARK(x0))
   A__SEL(s(cons(z0, z1)), cons(x1, x2)) -> c3(MARK(cons(z0, z1)))
   A__SEL(s(0), cons(x1, x2)) -> c3(A__SEL(0, mark(x2)))
   A__SEL(s(x0), cons(x1, from(z0))) -> c4(A__SEL(mark(x0), a__from(mark(z0))), MARK(from(z0)))
   A__SEL(s(x0), cons(x1, sel(z0, z1))) -> c4(A__SEL(mark(x0), a__sel(mark(z0), mark(z1))), MARK(sel(z0, z1)))
   A__SEL(s(x0), cons(x1, cons(z0, z1))) -> c4(A__SEL(mark(x0), cons(mark(z0), z1)), MARK(cons(z0, z1)))
   A__SEL(s(from(z0)), cons(x1, x2)) -> c4(A__SEL(a__from(mark(z0)), mark(x2)), MARK(x2))
   A__SEL(s(sel(z0, z1)), cons(x1, x2)) -> c4(A__SEL(a__sel(mark(z0), mark(z1)), mark(x2)), MARK(x2))
   A__SEL(s(s(z0)), cons(x1, x2)) -> c4(A__SEL(s(mark(z0)), mark(x2)), MARK(x2))
   A__SEL(s(0), cons(x1, x2)) -> c4(A__SEL(0, mark(x2)), MARK(x2))
   A__SEL(s(x0), cons(x1, s(z0))) -> c4(MARK(s(z0)))
   A__SEL(s(cons(z0, z1)), cons(x1, x2)) -> c4(MARK(x2))
   MARK(sel(x0, from(z0))) -> c7(A__SEL(mark(x0), a__from(mark(z0))), MARK(x0))
   MARK(sel(x0, sel(z0, z1))) -> c7(A__SEL(mark(x0), a__sel(mark(z0), mark(z1))), MARK(x0))
   MARK(sel(x0, cons(z0, z1))) -> c7(A__SEL(mark(x0), cons(mark(z0), z1)), MARK(x0))
   MARK(sel(from(z0), x1)) -> c7(A__SEL(a__from(mark(z0)), mark(x1)), MARK(from(z0)))
   MARK(sel(sel(z0, z1), x1)) -> c7(A__SEL(a__sel(mark(z0), mark(z1)), mark(x1)), MARK(sel(z0, z1)))
   MARK(sel(s(z0), x1)) -> c7(A__SEL(s(mark(z0)), mark(x1)), MARK(s(z0)))
   MARK(sel(x0, s(z0))) -> c7(MARK(x0))
   MARK(sel(x0, 0)) -> c7(MARK(x0))
   MARK(sel(cons(z0, z1), x1)) -> c7(MARK(cons(z0, z1)))
   MARK(sel(0, x1)) -> c7(A__SEL(0, mark(x1)))
   MARK(sel(x0, from(z0))) -> c8(A__SEL(mark(x0), a__from(mark(z0))), MARK(from(z0)))
   MARK(sel(x0, sel(z0, z1))) -> c8(A__SEL(mark(x0), a__sel(mark(z0), mark(z1))), MARK(sel(z0, z1)))
   MARK(sel(x0, cons(z0, z1))) -> c8(A__SEL(mark(x0), cons(mark(z0), z1)), MARK(cons(z0, z1)))
   MARK(sel(from(z0), x1)) -> c8(A__SEL(a__from(mark(z0)), mark(x1)), MARK(x1))
   MARK(sel(sel(z0, z1), x1)) -> c8(A__SEL(a__sel(mark(z0), mark(z1)), mark(x1)), MARK(x1))
   MARK(sel(s(z0), x1)) -> c8(A__SEL(s(mark(z0)), mark(x1)), MARK(x1))
   MARK(sel(0, x1)) -> c8(A__SEL(0, mark(x1)), MARK(x1))
   MARK(sel(x0, s(z0))) -> c8(MARK(s(z0)))
   MARK(sel(cons(z0, z1), x1)) -> c8(MARK(x1))
   A__SEL(s(x0), cons(x1, from(x2))) -> c3(A__SEL(mark(x0), cons(mark(mark(x2)), from(s(mark(x2))))), MARK(x0))
   A__SEL(s(x0), cons(x1, from(from(z0)))) -> c3(A__SEL(mark(x0), a__from(a__from(mark(z0)))), MARK(x0))
   A__SEL(s(x0), cons(x1, from(sel(z0, z1)))) -> c3(A__SEL(mark(x0), a__from(a__sel(mark(z0), mark(z1)))), MARK(x0))
   A__SEL(s(x0), cons(x1, from(cons(z0, z1)))) -> c3(A__SEL(mark(x0), a__from(cons(mark(z0), z1))), MARK(x0))
   A__SEL(s(x0), cons(x1, from(s(z0)))) -> c3(A__SEL(mark(x0), a__from(s(mark(z0)))), MARK(x0))
   A__SEL(s(x0), cons(x1, from(0))) -> c3(A__SEL(mark(x0), a__from(0)), MARK(x0))
   A__SEL(s(from(z0)), cons(x1, from(x2))) -> c3(A__SEL(a__from(mark(z0)), a__from(mark(x2))), MARK(from(z0)))
   A__SEL(s(sel(z0, z1)), cons(x1, from(x2))) -> c3(A__SEL(a__sel(mark(z0), mark(z1)), a__from(mark(x2))), MARK(sel(z0, z1)))
   A__SEL(s(s(z0)), cons(x1, from(x2))) -> c3(A__SEL(s(mark(z0)), a__from(mark(x2))), MARK(s(z0)))
   A__SEL(s(x0), cons(x1, from(x2))) -> c3(MARK(x0))
   A__SEL(s(cons(z0, z1)), cons(x1, from(x2))) -> c3(MARK(cons(z0, z1)))
   A__SEL(s(0), cons(x1, from(x2))) -> c3(A__SEL(0, a__from(mark(x2))))
S tuples:
   A__FROM(z0) -> c(MARK(z0))
   A__SEL(0, cons(z0, z1)) -> c2(MARK(z0))
   MARK(from(z0)) -> c6(A__FROM(mark(z0)), MARK(z0))
   MARK(cons(z0, z1)) -> c9(MARK(z0))
   MARK(s(z0)) -> c10(MARK(z0))
   A__SEL(s(x0), cons(x1, sel(z0, z1))) -> c3(A__SEL(mark(x0), a__sel(mark(z0), mark(z1))), MARK(x0))
   A__SEL(s(x0), cons(x1, cons(z0, z1))) -> c3(A__SEL(mark(x0), cons(mark(z0), z1)), MARK(x0))
   A__SEL(s(from(z0)), cons(x1, x2)) -> c3(A__SEL(a__from(mark(z0)), mark(x2)), MARK(from(z0)))
   A__SEL(s(sel(z0, z1)), cons(x1, x2)) -> c3(A__SEL(a__sel(mark(z0), mark(z1)), mark(x2)), MARK(sel(z0, z1)))
   A__SEL(s(s(z0)), cons(x1, x2)) -> c3(A__SEL(s(mark(z0)), mark(x2)), MARK(s(z0)))
   A__SEL(s(x0), cons(x1, s(z0))) -> c3(MARK(x0))
   A__SEL(s(x0), cons(x1, 0)) -> c3(MARK(x0))
   A__SEL(s(cons(z0, z1)), cons(x1, x2)) -> c3(MARK(cons(z0, z1)))
   A__SEL(s(0), cons(x1, x2)) -> c3(A__SEL(0, mark(x2)))
   A__SEL(s(x0), cons(x1, from(z0))) -> c4(A__SEL(mark(x0), a__from(mark(z0))), MARK(from(z0)))
   A__SEL(s(x0), cons(x1, sel(z0, z1))) -> c4(A__SEL(mark(x0), a__sel(mark(z0), mark(z1))), MARK(sel(z0, z1)))
   A__SEL(s(x0), cons(x1, cons(z0, z1))) -> c4(A__SEL(mark(x0), cons(mark(z0), z1)), MARK(cons(z0, z1)))
   A__SEL(s(from(z0)), cons(x1, x2)) -> c4(A__SEL(a__from(mark(z0)), mark(x2)), MARK(x2))
   A__SEL(s(sel(z0, z1)), cons(x1, x2)) -> c4(A__SEL(a__sel(mark(z0), mark(z1)), mark(x2)), MARK(x2))
   A__SEL(s(s(z0)), cons(x1, x2)) -> c4(A__SEL(s(mark(z0)), mark(x2)), MARK(x2))
   A__SEL(s(0), cons(x1, x2)) -> c4(A__SEL(0, mark(x2)), MARK(x2))
   A__SEL(s(x0), cons(x1, s(z0))) -> c4(MARK(s(z0)))
   A__SEL(s(cons(z0, z1)), cons(x1, x2)) -> c4(MARK(x2))
   MARK(sel(x0, from(z0))) -> c7(A__SEL(mark(x0), a__from(mark(z0))), MARK(x0))
   MARK(sel(x0, sel(z0, z1))) -> c7(A__SEL(mark(x0), a__sel(mark(z0), mark(z1))), MARK(x0))
   MARK(sel(x0, cons(z0, z1))) -> c7(A__SEL(mark(x0), cons(mark(z0), z1)), MARK(x0))
   MARK(sel(from(z0), x1)) -> c7(A__SEL(a__from(mark(z0)), mark(x1)), MARK(from(z0)))
   MARK(sel(sel(z0, z1), x1)) -> c7(A__SEL(a__sel(mark(z0), mark(z1)), mark(x1)), MARK(sel(z0, z1)))
   MARK(sel(s(z0), x1)) -> c7(A__SEL(s(mark(z0)), mark(x1)), MARK(s(z0)))
   MARK(sel(x0, s(z0))) -> c7(MARK(x0))
   MARK(sel(x0, 0)) -> c7(MARK(x0))
   MARK(sel(cons(z0, z1), x1)) -> c7(MARK(cons(z0, z1)))
   MARK(sel(0, x1)) -> c7(A__SEL(0, mark(x1)))
   MARK(sel(x0, from(z0))) -> c8(A__SEL(mark(x0), a__from(mark(z0))), MARK(from(z0)))
   MARK(sel(x0, sel(z0, z1))) -> c8(A__SEL(mark(x0), a__sel(mark(z0), mark(z1))), MARK(sel(z0, z1)))
   MARK(sel(x0, cons(z0, z1))) -> c8(A__SEL(mark(x0), cons(mark(z0), z1)), MARK(cons(z0, z1)))
   MARK(sel(from(z0), x1)) -> c8(A__SEL(a__from(mark(z0)), mark(x1)), MARK(x1))
   MARK(sel(sel(z0, z1), x1)) -> c8(A__SEL(a__sel(mark(z0), mark(z1)), mark(x1)), MARK(x1))
   MARK(sel(s(z0), x1)) -> c8(A__SEL(s(mark(z0)), mark(x1)), MARK(x1))
   MARK(sel(0, x1)) -> c8(A__SEL(0, mark(x1)), MARK(x1))
   MARK(sel(x0, s(z0))) -> c8(MARK(s(z0)))
   MARK(sel(cons(z0, z1), x1)) -> c8(MARK(x1))
   A__SEL(s(x0), cons(x1, from(x2))) -> c3(A__SEL(mark(x0), cons(mark(mark(x2)), from(s(mark(x2))))), MARK(x0))
   A__SEL(s(x0), cons(x1, from(from(z0)))) -> c3(A__SEL(mark(x0), a__from(a__from(mark(z0)))), MARK(x0))
   A__SEL(s(x0), cons(x1, from(sel(z0, z1)))) -> c3(A__SEL(mark(x0), a__from(a__sel(mark(z0), mark(z1)))), MARK(x0))
   A__SEL(s(x0), cons(x1, from(cons(z0, z1)))) -> c3(A__SEL(mark(x0), a__from(cons(mark(z0), z1))), MARK(x0))
   A__SEL(s(x0), cons(x1, from(s(z0)))) -> c3(A__SEL(mark(x0), a__from(s(mark(z0)))), MARK(x0))
   A__SEL(s(x0), cons(x1, from(0))) -> c3(A__SEL(mark(x0), a__from(0)), MARK(x0))
   A__SEL(s(from(z0)), cons(x1, from(x2))) -> c3(A__SEL(a__from(mark(z0)), a__from(mark(x2))), MARK(from(z0)))
   A__SEL(s(sel(z0, z1)), cons(x1, from(x2))) -> c3(A__SEL(a__sel(mark(z0), mark(z1)), a__from(mark(x2))), MARK(sel(z0, z1)))
   A__SEL(s(s(z0)), cons(x1, from(x2))) -> c3(A__SEL(s(mark(z0)), a__from(mark(x2))), MARK(s(z0)))
   A__SEL(s(x0), cons(x1, from(x2))) -> c3(MARK(x0))
   A__SEL(s(cons(z0, z1)), cons(x1, from(x2))) -> c3(MARK(cons(z0, z1)))
   A__SEL(s(0), cons(x1, from(x2))) -> c3(A__SEL(0, a__from(mark(x2))))
K tuples:none
Defined Rule Symbols:   a__from_1, a__sel_2, mark_1

Defined Pair Symbols:   A__FROM_1, A__SEL_2, MARK_1

Compound Symbols:   c_1, c2_1, c6_2, c9_1, c10_1, c3_2, c3_1, c4_2, c4_1, c7_2, c7_1, c8_2, c8_1


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

(81) CdtNarrowingProof (BOTH BOUNDS(ID, ID))
Use narrowing to replace A__SEL(s(x0), cons(x1, sel(z0, z1))) -> c3(A__SEL(mark(x0), a__sel(mark(z0), mark(z1))), MARK(x0)) by 
   A__SEL(s(x0), cons(x1, sel(x2, x3))) -> c3(A__SEL(mark(x0), sel(mark(x2), mark(x3))), MARK(x0))
   A__SEL(s(x0), cons(x1, sel(x2, from(z0)))) -> c3(A__SEL(mark(x0), a__sel(mark(x2), a__from(mark(z0)))), MARK(x0))
   A__SEL(s(x0), cons(x1, sel(x2, sel(z0, z1)))) -> c3(A__SEL(mark(x0), a__sel(mark(x2), a__sel(mark(z0), mark(z1)))), MARK(x0))
   A__SEL(s(x0), cons(x1, sel(x2, cons(z0, z1)))) -> c3(A__SEL(mark(x0), a__sel(mark(x2), cons(mark(z0), z1))), MARK(x0))
   A__SEL(s(x0), cons(x1, sel(x2, s(z0)))) -> c3(A__SEL(mark(x0), a__sel(mark(x2), s(mark(z0)))), MARK(x0))
   A__SEL(s(x0), cons(x1, sel(x2, 0))) -> c3(A__SEL(mark(x0), a__sel(mark(x2), 0)), MARK(x0))
   A__SEL(s(x0), cons(x1, sel(from(z0), x3))) -> c3(A__SEL(mark(x0), a__sel(a__from(mark(z0)), mark(x3))), MARK(x0))
   A__SEL(s(x0), cons(x1, sel(sel(z0, z1), x3))) -> c3(A__SEL(mark(x0), a__sel(a__sel(mark(z0), mark(z1)), mark(x3))), MARK(x0))
   A__SEL(s(x0), cons(x1, sel(cons(z0, z1), x3))) -> c3(A__SEL(mark(x0), a__sel(cons(mark(z0), z1), mark(x3))), MARK(x0))
   A__SEL(s(x0), cons(x1, sel(s(z0), x3))) -> c3(A__SEL(mark(x0), a__sel(s(mark(z0)), mark(x3))), MARK(x0))
   A__SEL(s(x0), cons(x1, sel(0, x3))) -> c3(A__SEL(mark(x0), a__sel(0, mark(x3))), MARK(x0))
   A__SEL(s(from(z0)), cons(x1, sel(x2, x3))) -> c3(A__SEL(a__from(mark(z0)), a__sel(mark(x2), mark(x3))), MARK(from(z0)))
   A__SEL(s(sel(z0, z1)), cons(x1, sel(x2, x3))) -> c3(A__SEL(a__sel(mark(z0), mark(z1)), a__sel(mark(x2), mark(x3))), MARK(sel(z0, z1)))
   A__SEL(s(cons(z0, z1)), cons(x1, sel(x2, x3))) -> c3(A__SEL(cons(mark(z0), z1), a__sel(mark(x2), mark(x3))), MARK(cons(z0, z1)))
   A__SEL(s(s(z0)), cons(x1, sel(x2, x3))) -> c3(A__SEL(s(mark(z0)), a__sel(mark(x2), mark(x3))), MARK(s(z0)))
   A__SEL(s(0), cons(x1, sel(x2, x3))) -> c3(A__SEL(0, a__sel(mark(x2), mark(x3))), MARK(0))

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

(82)
Obligation:
Complexity Dependency Tuples Problem

Rules:
   a__from(z0) -> cons(mark(z0), from(s(z0)))
   a__from(z0) -> from(z0)
   a__sel(0, cons(z0, z1)) -> mark(z0)
   a__sel(s(z0), cons(z1, z2)) -> a__sel(mark(z0), mark(z2))
   a__sel(z0, z1) -> sel(z0, z1)
   mark(from(z0)) -> a__from(mark(z0))
   mark(sel(z0, z1)) -> a__sel(mark(z0), mark(z1))
   mark(cons(z0, z1)) -> cons(mark(z0), z1)
   mark(s(z0)) -> s(mark(z0))
   mark(0) -> 0
Tuples:
   A__FROM(z0) -> c(MARK(z0))
   A__SEL(0, cons(z0, z1)) -> c2(MARK(z0))
   MARK(from(z0)) -> c6(A__FROM(mark(z0)), MARK(z0))
   MARK(cons(z0, z1)) -> c9(MARK(z0))
   MARK(s(z0)) -> c10(MARK(z0))
   A__SEL(s(x0), cons(x1, cons(z0, z1))) -> c3(A__SEL(mark(x0), cons(mark(z0), z1)), MARK(x0))
   A__SEL(s(from(z0)), cons(x1, x2)) -> c3(A__SEL(a__from(mark(z0)), mark(x2)), MARK(from(z0)))
   A__SEL(s(sel(z0, z1)), cons(x1, x2)) -> c3(A__SEL(a__sel(mark(z0), mark(z1)), mark(x2)), MARK(sel(z0, z1)))
   A__SEL(s(s(z0)), cons(x1, x2)) -> c3(A__SEL(s(mark(z0)), mark(x2)), MARK(s(z0)))
   A__SEL(s(x0), cons(x1, s(z0))) -> c3(MARK(x0))
   A__SEL(s(x0), cons(x1, 0)) -> c3(MARK(x0))
   A__SEL(s(cons(z0, z1)), cons(x1, x2)) -> c3(MARK(cons(z0, z1)))
   A__SEL(s(0), cons(x1, x2)) -> c3(A__SEL(0, mark(x2)))
   A__SEL(s(x0), cons(x1, from(z0))) -> c4(A__SEL(mark(x0), a__from(mark(z0))), MARK(from(z0)))
   A__SEL(s(x0), cons(x1, sel(z0, z1))) -> c4(A__SEL(mark(x0), a__sel(mark(z0), mark(z1))), MARK(sel(z0, z1)))
   A__SEL(s(x0), cons(x1, cons(z0, z1))) -> c4(A__SEL(mark(x0), cons(mark(z0), z1)), MARK(cons(z0, z1)))
   A__SEL(s(from(z0)), cons(x1, x2)) -> c4(A__SEL(a__from(mark(z0)), mark(x2)), MARK(x2))
   A__SEL(s(sel(z0, z1)), cons(x1, x2)) -> c4(A__SEL(a__sel(mark(z0), mark(z1)), mark(x2)), MARK(x2))
   A__SEL(s(s(z0)), cons(x1, x2)) -> c4(A__SEL(s(mark(z0)), mark(x2)), MARK(x2))
   A__SEL(s(0), cons(x1, x2)) -> c4(A__SEL(0, mark(x2)), MARK(x2))
   A__SEL(s(x0), cons(x1, s(z0))) -> c4(MARK(s(z0)))
   A__SEL(s(cons(z0, z1)), cons(x1, x2)) -> c4(MARK(x2))
   MARK(sel(x0, from(z0))) -> c7(A__SEL(mark(x0), a__from(mark(z0))), MARK(x0))
   MARK(sel(x0, sel(z0, z1))) -> c7(A__SEL(mark(x0), a__sel(mark(z0), mark(z1))), MARK(x0))
   MARK(sel(x0, cons(z0, z1))) -> c7(A__SEL(mark(x0), cons(mark(z0), z1)), MARK(x0))
   MARK(sel(from(z0), x1)) -> c7(A__SEL(a__from(mark(z0)), mark(x1)), MARK(from(z0)))
   MARK(sel(sel(z0, z1), x1)) -> c7(A__SEL(a__sel(mark(z0), mark(z1)), mark(x1)), MARK(sel(z0, z1)))
   MARK(sel(s(z0), x1)) -> c7(A__SEL(s(mark(z0)), mark(x1)), MARK(s(z0)))
   MARK(sel(x0, s(z0))) -> c7(MARK(x0))
   MARK(sel(x0, 0)) -> c7(MARK(x0))
   MARK(sel(cons(z0, z1), x1)) -> c7(MARK(cons(z0, z1)))
   MARK(sel(0, x1)) -> c7(A__SEL(0, mark(x1)))
   MARK(sel(x0, from(z0))) -> c8(A__SEL(mark(x0), a__from(mark(z0))), MARK(from(z0)))
   MARK(sel(x0, sel(z0, z1))) -> c8(A__SEL(mark(x0), a__sel(mark(z0), mark(z1))), MARK(sel(z0, z1)))
   MARK(sel(x0, cons(z0, z1))) -> c8(A__SEL(mark(x0), cons(mark(z0), z1)), MARK(cons(z0, z1)))
   MARK(sel(from(z0), x1)) -> c8(A__SEL(a__from(mark(z0)), mark(x1)), MARK(x1))
   MARK(sel(sel(z0, z1), x1)) -> c8(A__SEL(a__sel(mark(z0), mark(z1)), mark(x1)), MARK(x1))
   MARK(sel(s(z0), x1)) -> c8(A__SEL(s(mark(z0)), mark(x1)), MARK(x1))
   MARK(sel(0, x1)) -> c8(A__SEL(0, mark(x1)), MARK(x1))
   MARK(sel(x0, s(z0))) -> c8(MARK(s(z0)))
   MARK(sel(cons(z0, z1), x1)) -> c8(MARK(x1))
   A__SEL(s(x0), cons(x1, from(x2))) -> c3(A__SEL(mark(x0), cons(mark(mark(x2)), from(s(mark(x2))))), MARK(x0))
   A__SEL(s(x0), cons(x1, from(from(z0)))) -> c3(A__SEL(mark(x0), a__from(a__from(mark(z0)))), MARK(x0))
   A__SEL(s(x0), cons(x1, from(sel(z0, z1)))) -> c3(A__SEL(mark(x0), a__from(a__sel(mark(z0), mark(z1)))), MARK(x0))
   A__SEL(s(x0), cons(x1, from(cons(z0, z1)))) -> c3(A__SEL(mark(x0), a__from(cons(mark(z0), z1))), MARK(x0))
   A__SEL(s(x0), cons(x1, from(s(z0)))) -> c3(A__SEL(mark(x0), a__from(s(mark(z0)))), MARK(x0))
   A__SEL(s(x0), cons(x1, from(0))) -> c3(A__SEL(mark(x0), a__from(0)), MARK(x0))
   A__SEL(s(from(z0)), cons(x1, from(x2))) -> c3(A__SEL(a__from(mark(z0)), a__from(mark(x2))), MARK(from(z0)))
   A__SEL(s(sel(z0, z1)), cons(x1, from(x2))) -> c3(A__SEL(a__sel(mark(z0), mark(z1)), a__from(mark(x2))), MARK(sel(z0, z1)))
   A__SEL(s(s(z0)), cons(x1, from(x2))) -> c3(A__SEL(s(mark(z0)), a__from(mark(x2))), MARK(s(z0)))
   A__SEL(s(x0), cons(x1, from(x2))) -> c3(MARK(x0))
   A__SEL(s(cons(z0, z1)), cons(x1, from(x2))) -> c3(MARK(cons(z0, z1)))
   A__SEL(s(0), cons(x1, from(x2))) -> c3(A__SEL(0, a__from(mark(x2))))
   A__SEL(s(x0), cons(x1, sel(x2, x3))) -> c3(A__SEL(mark(x0), sel(mark(x2), mark(x3))), MARK(x0))
   A__SEL(s(x0), cons(x1, sel(x2, from(z0)))) -> c3(A__SEL(mark(x0), a__sel(mark(x2), a__from(mark(z0)))), MARK(x0))
   A__SEL(s(x0), cons(x1, sel(x2, sel(z0, z1)))) -> c3(A__SEL(mark(x0), a__sel(mark(x2), a__sel(mark(z0), mark(z1)))), MARK(x0))
   A__SEL(s(x0), cons(x1, sel(x2, cons(z0, z1)))) -> c3(A__SEL(mark(x0), a__sel(mark(x2), cons(mark(z0), z1))), MARK(x0))
   A__SEL(s(x0), cons(x1, sel(x2, s(z0)))) -> c3(A__SEL(mark(x0), a__sel(mark(x2), s(mark(z0)))), MARK(x0))
   A__SEL(s(x0), cons(x1, sel(x2, 0))) -> c3(A__SEL(mark(x0), a__sel(mark(x2), 0)), MARK(x0))
   A__SEL(s(x0), cons(x1, sel(from(z0), x3))) -> c3(A__SEL(mark(x0), a__sel(a__from(mark(z0)), mark(x3))), MARK(x0))
   A__SEL(s(x0), cons(x1, sel(sel(z0, z1), x3))) -> c3(A__SEL(mark(x0), a__sel(a__sel(mark(z0), mark(z1)), mark(x3))), MARK(x0))
   A__SEL(s(x0), cons(x1, sel(cons(z0, z1), x3))) -> c3(A__SEL(mark(x0), a__sel(cons(mark(z0), z1), mark(x3))), MARK(x0))
   A__SEL(s(x0), cons(x1, sel(s(z0), x3))) -> c3(A__SEL(mark(x0), a__sel(s(mark(z0)), mark(x3))), MARK(x0))
   A__SEL(s(x0), cons(x1, sel(0, x3))) -> c3(A__SEL(mark(x0), a__sel(0, mark(x3))), MARK(x0))
   A__SEL(s(from(z0)), cons(x1, sel(x2, x3))) -> c3(A__SEL(a__from(mark(z0)), a__sel(mark(x2), mark(x3))), MARK(from(z0)))
   A__SEL(s(sel(z0, z1)), cons(x1, sel(x2, x3))) -> c3(A__SEL(a__sel(mark(z0), mark(z1)), a__sel(mark(x2), mark(x3))), MARK(sel(z0, z1)))
   A__SEL(s(cons(z0, z1)), cons(x1, sel(x2, x3))) -> c3(A__SEL(cons(mark(z0), z1), a__sel(mark(x2), mark(x3))), MARK(cons(z0, z1)))
   A__SEL(s(s(z0)), cons(x1, sel(x2, x3))) -> c3(A__SEL(s(mark(z0)), a__sel(mark(x2), mark(x3))), MARK(s(z0)))
   A__SEL(s(0), cons(x1, sel(x2, x3))) -> c3(A__SEL(0, a__sel(mark(x2), mark(x3))), MARK(0))
S tuples:
   A__FROM(z0) -> c(MARK(z0))
   A__SEL(0, cons(z0, z1)) -> c2(MARK(z0))
   MARK(from(z0)) -> c6(A__FROM(mark(z0)), MARK(z0))
   MARK(cons(z0, z1)) -> c9(MARK(z0))
   MARK(s(z0)) -> c10(MARK(z0))
   A__SEL(s(x0), cons(x1, cons(z0, z1))) -> c3(A__SEL(mark(x0), cons(mark(z0), z1)), MARK(x0))
   A__SEL(s(from(z0)), cons(x1, x2)) -> c3(A__SEL(a__from(mark(z0)), mark(x2)), MARK(from(z0)))
   A__SEL(s(sel(z0, z1)), cons(x1, x2)) -> c3(A__SEL(a__sel(mark(z0), mark(z1)), mark(x2)), MARK(sel(z0, z1)))
   A__SEL(s(s(z0)), cons(x1, x2)) -> c3(A__SEL(s(mark(z0)), mark(x2)), MARK(s(z0)))
   A__SEL(s(x0), cons(x1, s(z0))) -> c3(MARK(x0))
   A__SEL(s(x0), cons(x1, 0)) -> c3(MARK(x0))
   A__SEL(s(cons(z0, z1)), cons(x1, x2)) -> c3(MARK(cons(z0, z1)))
   A__SEL(s(0), cons(x1, x2)) -> c3(A__SEL(0, mark(x2)))
   A__SEL(s(x0), cons(x1, from(z0))) -> c4(A__SEL(mark(x0), a__from(mark(z0))), MARK(from(z0)))
   A__SEL(s(x0), cons(x1, sel(z0, z1))) -> c4(A__SEL(mark(x0), a__sel(mark(z0), mark(z1))), MARK(sel(z0, z1)))
   A__SEL(s(x0), cons(x1, cons(z0, z1))) -> c4(A__SEL(mark(x0), cons(mark(z0), z1)), MARK(cons(z0, z1)))
   A__SEL(s(from(z0)), cons(x1, x2)) -> c4(A__SEL(a__from(mark(z0)), mark(x2)), MARK(x2))
   A__SEL(s(sel(z0, z1)), cons(x1, x2)) -> c4(A__SEL(a__sel(mark(z0), mark(z1)), mark(x2)), MARK(x2))
   A__SEL(s(s(z0)), cons(x1, x2)) -> c4(A__SEL(s(mark(z0)), mark(x2)), MARK(x2))
   A__SEL(s(0), cons(x1, x2)) -> c4(A__SEL(0, mark(x2)), MARK(x2))
   A__SEL(s(x0), cons(x1, s(z0))) -> c4(MARK(s(z0)))
   A__SEL(s(cons(z0, z1)), cons(x1, x2)) -> c4(MARK(x2))
   MARK(sel(x0, from(z0))) -> c7(A__SEL(mark(x0), a__from(mark(z0))), MARK(x0))
   MARK(sel(x0, sel(z0, z1))) -> c7(A__SEL(mark(x0), a__sel(mark(z0), mark(z1))), MARK(x0))
   MARK(sel(x0, cons(z0, z1))) -> c7(A__SEL(mark(x0), cons(mark(z0), z1)), MARK(x0))
   MARK(sel(from(z0), x1)) -> c7(A__SEL(a__from(mark(z0)), mark(x1)), MARK(from(z0)))
   MARK(sel(sel(z0, z1), x1)) -> c7(A__SEL(a__sel(mark(z0), mark(z1)), mark(x1)), MARK(sel(z0, z1)))
   MARK(sel(s(z0), x1)) -> c7(A__SEL(s(mark(z0)), mark(x1)), MARK(s(z0)))
   MARK(sel(x0, s(z0))) -> c7(MARK(x0))
   MARK(sel(x0, 0)) -> c7(MARK(x0))
   MARK(sel(cons(z0, z1), x1)) -> c7(MARK(cons(z0, z1)))
   MARK(sel(0, x1)) -> c7(A__SEL(0, mark(x1)))
   MARK(sel(x0, from(z0))) -> c8(A__SEL(mark(x0), a__from(mark(z0))), MARK(from(z0)))
   MARK(sel(x0, sel(z0, z1))) -> c8(A__SEL(mark(x0), a__sel(mark(z0), mark(z1))), MARK(sel(z0, z1)))
   MARK(sel(x0, cons(z0, z1))) -> c8(A__SEL(mark(x0), cons(mark(z0), z1)), MARK(cons(z0, z1)))
   MARK(sel(from(z0), x1)) -> c8(A__SEL(a__from(mark(z0)), mark(x1)), MARK(x1))
   MARK(sel(sel(z0, z1), x1)) -> c8(A__SEL(a__sel(mark(z0), mark(z1)), mark(x1)), MARK(x1))
   MARK(sel(s(z0), x1)) -> c8(A__SEL(s(mark(z0)), mark(x1)), MARK(x1))
   MARK(sel(0, x1)) -> c8(A__SEL(0, mark(x1)), MARK(x1))
   MARK(sel(x0, s(z0))) -> c8(MARK(s(z0)))
   MARK(sel(cons(z0, z1), x1)) -> c8(MARK(x1))
   A__SEL(s(x0), cons(x1, from(x2))) -> c3(A__SEL(mark(x0), cons(mark(mark(x2)), from(s(mark(x2))))), MARK(x0))
   A__SEL(s(x0), cons(x1, from(from(z0)))) -> c3(A__SEL(mark(x0), a__from(a__from(mark(z0)))), MARK(x0))
   A__SEL(s(x0), cons(x1, from(sel(z0, z1)))) -> c3(A__SEL(mark(x0), a__from(a__sel(mark(z0), mark(z1)))), MARK(x0))
   A__SEL(s(x0), cons(x1, from(cons(z0, z1)))) -> c3(A__SEL(mark(x0), a__from(cons(mark(z0), z1))), MARK(x0))
   A__SEL(s(x0), cons(x1, from(s(z0)))) -> c3(A__SEL(mark(x0), a__from(s(mark(z0)))), MARK(x0))
   A__SEL(s(x0), cons(x1, from(0))) -> c3(A__SEL(mark(x0), a__from(0)), MARK(x0))
   A__SEL(s(from(z0)), cons(x1, from(x2))) -> c3(A__SEL(a__from(mark(z0)), a__from(mark(x2))), MARK(from(z0)))
   A__SEL(s(sel(z0, z1)), cons(x1, from(x2))) -> c3(A__SEL(a__sel(mark(z0), mark(z1)), a__from(mark(x2))), MARK(sel(z0, z1)))
   A__SEL(s(s(z0)), cons(x1, from(x2))) -> c3(A__SEL(s(mark(z0)), a__from(mark(x2))), MARK(s(z0)))
   A__SEL(s(x0), cons(x1, from(x2))) -> c3(MARK(x0))
   A__SEL(s(cons(z0, z1)), cons(x1, from(x2))) -> c3(MARK(cons(z0, z1)))
   A__SEL(s(0), cons(x1, from(x2))) -> c3(A__SEL(0, a__from(mark(x2))))
   A__SEL(s(x0), cons(x1, sel(x2, x3))) -> c3(A__SEL(mark(x0), sel(mark(x2), mark(x3))), MARK(x0))
   A__SEL(s(x0), cons(x1, sel(x2, from(z0)))) -> c3(A__SEL(mark(x0), a__sel(mark(x2), a__from(mark(z0)))), MARK(x0))
   A__SEL(s(x0), cons(x1, sel(x2, sel(z0, z1)))) -> c3(A__SEL(mark(x0), a__sel(mark(x2), a__sel(mark(z0), mark(z1)))), MARK(x0))
   A__SEL(s(x0), cons(x1, sel(x2, cons(z0, z1)))) -> c3(A__SEL(mark(x0), a__sel(mark(x2), cons(mark(z0), z1))), MARK(x0))
   A__SEL(s(x0), cons(x1, sel(x2, s(z0)))) -> c3(A__SEL(mark(x0), a__sel(mark(x2), s(mark(z0)))), MARK(x0))
   A__SEL(s(x0), cons(x1, sel(x2, 0))) -> c3(A__SEL(mark(x0), a__sel(mark(x2), 0)), MARK(x0))
   A__SEL(s(x0), cons(x1, sel(from(z0), x3))) -> c3(A__SEL(mark(x0), a__sel(a__from(mark(z0)), mark(x3))), MARK(x0))
   A__SEL(s(x0), cons(x1, sel(sel(z0, z1), x3))) -> c3(A__SEL(mark(x0), a__sel(a__sel(mark(z0), mark(z1)), mark(x3))), MARK(x0))
   A__SEL(s(x0), cons(x1, sel(cons(z0, z1), x3))) -> c3(A__SEL(mark(x0), a__sel(cons(mark(z0), z1), mark(x3))), MARK(x0))
   A__SEL(s(x0), cons(x1, sel(s(z0), x3))) -> c3(A__SEL(mark(x0), a__sel(s(mark(z0)), mark(x3))), MARK(x0))
   A__SEL(s(x0), cons(x1, sel(0, x3))) -> c3(A__SEL(mark(x0), a__sel(0, mark(x3))), MARK(x0))
   A__SEL(s(from(z0)), cons(x1, sel(x2, x3))) -> c3(A__SEL(a__from(mark(z0)), a__sel(mark(x2), mark(x3))), MARK(from(z0)))
   A__SEL(s(sel(z0, z1)), cons(x1, sel(x2, x3))) -> c3(A__SEL(a__sel(mark(z0), mark(z1)), a__sel(mark(x2), mark(x3))), MARK(sel(z0, z1)))
   A__SEL(s(cons(z0, z1)), cons(x1, sel(x2, x3))) -> c3(A__SEL(cons(mark(z0), z1), a__sel(mark(x2), mark(x3))), MARK(cons(z0, z1)))
   A__SEL(s(s(z0)), cons(x1, sel(x2, x3))) -> c3(A__SEL(s(mark(z0)), a__sel(mark(x2), mark(x3))), MARK(s(z0)))
   A__SEL(s(0), cons(x1, sel(x2, x3))) -> c3(A__SEL(0, a__sel(mark(x2), mark(x3))), MARK(0))
K tuples:none
Defined Rule Symbols:   a__from_1, a__sel_2, mark_1

Defined Pair Symbols:   A__FROM_1, A__SEL_2, MARK_1

Compound Symbols:   c_1, c2_1, c6_2, c9_1, c10_1, c3_2, c3_1, c4_2, c4_1, c7_2, c7_1, c8_2, c8_1


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

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

(84)
Obligation:
Complexity Dependency Tuples Problem

Rules:
   a__from(z0) -> cons(mark(z0), from(s(z0)))
   a__from(z0) -> from(z0)
   a__sel(0, cons(z0, z1)) -> mark(z0)
   a__sel(s(z0), cons(z1, z2)) -> a__sel(mark(z0), mark(z2))
   a__sel(z0, z1) -> sel(z0, z1)
   mark(from(z0)) -> a__from(mark(z0))
   mark(sel(z0, z1)) -> a__sel(mark(z0), mark(z1))
   mark(cons(z0, z1)) -> cons(mark(z0), z1)
   mark(s(z0)) -> s(mark(z0))
   mark(0) -> 0
Tuples:
   A__FROM(z0) -> c(MARK(z0))
   A__SEL(0, cons(z0, z1)) -> c2(MARK(z0))
   MARK(from(z0)) -> c6(A__FROM(mark(z0)), MARK(z0))
   MARK(cons(z0, z1)) -> c9(MARK(z0))
   MARK(s(z0)) -> c10(MARK(z0))
   A__SEL(s(x0), cons(x1, cons(z0, z1))) -> c3(A__SEL(mark(x0), cons(mark(z0), z1)), MARK(x0))
   A__SEL(s(from(z0)), cons(x1, x2)) -> c3(A__SEL(a__from(mark(z0)), mark(x2)), MARK(from(z0)))
   A__SEL(s(sel(z0, z1)), cons(x1, x2)) -> c3(A__SEL(a__sel(mark(z0), mark(z1)), mark(x2)), MARK(sel(z0, z1)))
   A__SEL(s(s(z0)), cons(x1, x2)) -> c3(A__SEL(s(mark(z0)), mark(x2)), MARK(s(z0)))
   A__SEL(s(x0), cons(x1, s(z0))) -> c3(MARK(x0))
   A__SEL(s(x0), cons(x1, 0)) -> c3(MARK(x0))
   A__SEL(s(cons(z0, z1)), cons(x1, x2)) -> c3(MARK(cons(z0, z1)))
   A__SEL(s(0), cons(x1, x2)) -> c3(A__SEL(0, mark(x2)))
   A__SEL(s(x0), cons(x1, from(z0))) -> c4(A__SEL(mark(x0), a__from(mark(z0))), MARK(from(z0)))
   A__SEL(s(x0), cons(x1, sel(z0, z1))) -> c4(A__SEL(mark(x0), a__sel(mark(z0), mark(z1))), MARK(sel(z0, z1)))
   A__SEL(s(x0), cons(x1, cons(z0, z1))) -> c4(A__SEL(mark(x0), cons(mark(z0), z1)), MARK(cons(z0, z1)))
   A__SEL(s(from(z0)), cons(x1, x2)) -> c4(A__SEL(a__from(mark(z0)), mark(x2)), MARK(x2))
   A__SEL(s(sel(z0, z1)), cons(x1, x2)) -> c4(A__SEL(a__sel(mark(z0), mark(z1)), mark(x2)), MARK(x2))
   A__SEL(s(s(z0)), cons(x1, x2)) -> c4(A__SEL(s(mark(z0)), mark(x2)), MARK(x2))
   A__SEL(s(0), cons(x1, x2)) -> c4(A__SEL(0, mark(x2)), MARK(x2))
   A__SEL(s(x0), cons(x1, s(z0))) -> c4(MARK(s(z0)))
   A__SEL(s(cons(z0, z1)), cons(x1, x2)) -> c4(MARK(x2))
   MARK(sel(x0, from(z0))) -> c7(A__SEL(mark(x0), a__from(mark(z0))), MARK(x0))
   MARK(sel(x0, sel(z0, z1))) -> c7(A__SEL(mark(x0), a__sel(mark(z0), mark(z1))), MARK(x0))
   MARK(sel(x0, cons(z0, z1))) -> c7(A__SEL(mark(x0), cons(mark(z0), z1)), MARK(x0))
   MARK(sel(from(z0), x1)) -> c7(A__SEL(a__from(mark(z0)), mark(x1)), MARK(from(z0)))
   MARK(sel(sel(z0, z1), x1)) -> c7(A__SEL(a__sel(mark(z0), mark(z1)), mark(x1)), MARK(sel(z0, z1)))
   MARK(sel(s(z0), x1)) -> c7(A__SEL(s(mark(z0)), mark(x1)), MARK(s(z0)))
   MARK(sel(x0, s(z0))) -> c7(MARK(x0))
   MARK(sel(x0, 0)) -> c7(MARK(x0))
   MARK(sel(cons(z0, z1), x1)) -> c7(MARK(cons(z0, z1)))
   MARK(sel(0, x1)) -> c7(A__SEL(0, mark(x1)))
   MARK(sel(x0, from(z0))) -> c8(A__SEL(mark(x0), a__from(mark(z0))), MARK(from(z0)))
   MARK(sel(x0, sel(z0, z1))) -> c8(A__SEL(mark(x0), a__sel(mark(z0), mark(z1))), MARK(sel(z0, z1)))
   MARK(sel(x0, cons(z0, z1))) -> c8(A__SEL(mark(x0), cons(mark(z0), z1)), MARK(cons(z0, z1)))
   MARK(sel(from(z0), x1)) -> c8(A__SEL(a__from(mark(z0)), mark(x1)), MARK(x1))
   MARK(sel(sel(z0, z1), x1)) -> c8(A__SEL(a__sel(mark(z0), mark(z1)), mark(x1)), MARK(x1))
   MARK(sel(s(z0), x1)) -> c8(A__SEL(s(mark(z0)), mark(x1)), MARK(x1))
   MARK(sel(0, x1)) -> c8(A__SEL(0, mark(x1)), MARK(x1))
   MARK(sel(x0, s(z0))) -> c8(MARK(s(z0)))
   MARK(sel(cons(z0, z1), x1)) -> c8(MARK(x1))
   A__SEL(s(x0), cons(x1, from(x2))) -> c3(A__SEL(mark(x0), cons(mark(mark(x2)), from(s(mark(x2))))), MARK(x0))
   A__SEL(s(x0), cons(x1, from(from(z0)))) -> c3(A__SEL(mark(x0), a__from(a__from(mark(z0)))), MARK(x0))
   A__SEL(s(x0), cons(x1, from(sel(z0, z1)))) -> c3(A__SEL(mark(x0), a__from(a__sel(mark(z0), mark(z1)))), MARK(x0))
   A__SEL(s(x0), cons(x1, from(cons(z0, z1)))) -> c3(A__SEL(mark(x0), a__from(cons(mark(z0), z1))), MARK(x0))
   A__SEL(s(x0), cons(x1, from(s(z0)))) -> c3(A__SEL(mark(x0), a__from(s(mark(z0)))), MARK(x0))
   A__SEL(s(x0), cons(x1, from(0))) -> c3(A__SEL(mark(x0), a__from(0)), MARK(x0))
   A__SEL(s(from(z0)), cons(x1, from(x2))) -> c3(A__SEL(a__from(mark(z0)), a__from(mark(x2))), MARK(from(z0)))
   A__SEL(s(sel(z0, z1)), cons(x1, from(x2))) -> c3(A__SEL(a__sel(mark(z0), mark(z1)), a__from(mark(x2))), MARK(sel(z0, z1)))
   A__SEL(s(s(z0)), cons(x1, from(x2))) -> c3(A__SEL(s(mark(z0)), a__from(mark(x2))), MARK(s(z0)))
   A__SEL(s(x0), cons(x1, from(x2))) -> c3(MARK(x0))
   A__SEL(s(cons(z0, z1)), cons(x1, from(x2))) -> c3(MARK(cons(z0, z1)))
   A__SEL(s(0), cons(x1, from(x2))) -> c3(A__SEL(0, a__from(mark(x2))))
   A__SEL(s(x0), cons(x1, sel(x2, from(z0)))) -> c3(A__SEL(mark(x0), a__sel(mark(x2), a__from(mark(z0)))), MARK(x0))
   A__SEL(s(x0), cons(x1, sel(x2, sel(z0, z1)))) -> c3(A__SEL(mark(x0), a__sel(mark(x2), a__sel(mark(z0), mark(z1)))), MARK(x0))
   A__SEL(s(x0), cons(x1, sel(x2, cons(z0, z1)))) -> c3(A__SEL(mark(x0), a__sel(mark(x2), cons(mark(z0), z1))), MARK(x0))
   A__SEL(s(x0), cons(x1, sel(x2, s(z0)))) -> c3(A__SEL(mark(x0), a__sel(mark(x2), s(mark(z0)))), MARK(x0))
   A__SEL(s(x0), cons(x1, sel(x2, 0))) -> c3(A__SEL(mark(x0), a__sel(mark(x2), 0)), MARK(x0))
   A__SEL(s(x0), cons(x1, sel(from(z0), x3))) -> c3(A__SEL(mark(x0), a__sel(a__from(mark(z0)), mark(x3))), MARK(x0))
   A__SEL(s(x0), cons(x1, sel(sel(z0, z1), x3))) -> c3(A__SEL(mark(x0), a__sel(a__sel(mark(z0), mark(z1)), mark(x3))), MARK(x0))
   A__SEL(s(x0), cons(x1, sel(cons(z0, z1), x3))) -> c3(A__SEL(mark(x0), a__sel(cons(mark(z0), z1), mark(x3))), MARK(x0))
   A__SEL(s(x0), cons(x1, sel(s(z0), x3))) -> c3(A__SEL(mark(x0), a__sel(s(mark(z0)), mark(x3))), MARK(x0))
   A__SEL(s(x0), cons(x1, sel(0, x3))) -> c3(A__SEL(mark(x0), a__sel(0, mark(x3))), MARK(x0))
   A__SEL(s(from(z0)), cons(x1, sel(x2, x3))) -> c3(A__SEL(a__from(mark(z0)), a__sel(mark(x2), mark(x3))), MARK(from(z0)))
   A__SEL(s(sel(z0, z1)), cons(x1, sel(x2, x3))) -> c3(A__SEL(a__sel(mark(z0), mark(z1)), a__sel(mark(x2), mark(x3))), MARK(sel(z0, z1)))
   A__SEL(s(s(z0)), cons(x1, sel(x2, x3))) -> c3(A__SEL(s(mark(z0)), a__sel(mark(x2), mark(x3))), MARK(s(z0)))
   A__SEL(s(x0), cons(x1, sel(x2, x3))) -> c3(MARK(x0))
   A__SEL(s(cons(z0, z1)), cons(x1, sel(x2, x3))) -> c3(MARK(cons(z0, z1)))
   A__SEL(s(0), cons(x1, sel(x2, x3))) -> c3(A__SEL(0, a__sel(mark(x2), mark(x3))))
S tuples:
   A__FROM(z0) -> c(MARK(z0))
   A__SEL(0, cons(z0, z1)) -> c2(MARK(z0))
   MARK(from(z0)) -> c6(A__FROM(mark(z0)), MARK(z0))
   MARK(cons(z0, z1)) -> c9(MARK(z0))
   MARK(s(z0)) -> c10(MARK(z0))
   A__SEL(s(x0), cons(x1, cons(z0, z1))) -> c3(A__SEL(mark(x0), cons(mark(z0), z1)), MARK(x0))
   A__SEL(s(from(z0)), cons(x1, x2)) -> c3(A__SEL(a__from(mark(z0)), mark(x2)), MARK(from(z0)))
   A__SEL(s(sel(z0, z1)), cons(x1, x2)) -> c3(A__SEL(a__sel(mark(z0), mark(z1)), mark(x2)), MARK(sel(z0, z1)))
   A__SEL(s(s(z0)), cons(x1, x2)) -> c3(A__SEL(s(mark(z0)), mark(x2)), MARK(s(z0)))
   A__SEL(s(x0), cons(x1, s(z0))) -> c3(MARK(x0))
   A__SEL(s(x0), cons(x1, 0)) -> c3(MARK(x0))
   A__SEL(s(cons(z0, z1)), cons(x1, x2)) -> c3(MARK(cons(z0, z1)))
   A__SEL(s(0), cons(x1, x2)) -> c3(A__SEL(0, mark(x2)))
   A__SEL(s(x0), cons(x1, from(z0))) -> c4(A__SEL(mark(x0), a__from(mark(z0))), MARK(from(z0)))
   A__SEL(s(x0), cons(x1, sel(z0, z1))) -> c4(A__SEL(mark(x0), a__sel(mark(z0), mark(z1))), MARK(sel(z0, z1)))
   A__SEL(s(x0), cons(x1, cons(z0, z1))) -> c4(A__SEL(mark(x0), cons(mark(z0), z1)), MARK(cons(z0, z1)))
   A__SEL(s(from(z0)), cons(x1, x2)) -> c4(A__SEL(a__from(mark(z0)), mark(x2)), MARK(x2))
   A__SEL(s(sel(z0, z1)), cons(x1, x2)) -> c4(A__SEL(a__sel(mark(z0), mark(z1)), mark(x2)), MARK(x2))
   A__SEL(s(s(z0)), cons(x1, x2)) -> c4(A__SEL(s(mark(z0)), mark(x2)), MARK(x2))
   A__SEL(s(0), cons(x1, x2)) -> c4(A__SEL(0, mark(x2)), MARK(x2))
   A__SEL(s(x0), cons(x1, s(z0))) -> c4(MARK(s(z0)))
   A__SEL(s(cons(z0, z1)), cons(x1, x2)) -> c4(MARK(x2))
   MARK(sel(x0, from(z0))) -> c7(A__SEL(mark(x0), a__from(mark(z0))), MARK(x0))
   MARK(sel(x0, sel(z0, z1))) -> c7(A__SEL(mark(x0), a__sel(mark(z0), mark(z1))), MARK(x0))
   MARK(sel(x0, cons(z0, z1))) -> c7(A__SEL(mark(x0), cons(mark(z0), z1)), MARK(x0))
   MARK(sel(from(z0), x1)) -> c7(A__SEL(a__from(mark(z0)), mark(x1)), MARK(from(z0)))
   MARK(sel(sel(z0, z1), x1)) -> c7(A__SEL(a__sel(mark(z0), mark(z1)), mark(x1)), MARK(sel(z0, z1)))
   MARK(sel(s(z0), x1)) -> c7(A__SEL(s(mark(z0)), mark(x1)), MARK(s(z0)))
   MARK(sel(x0, s(z0))) -> c7(MARK(x0))
   MARK(sel(x0, 0)) -> c7(MARK(x0))
   MARK(sel(cons(z0, z1), x1)) -> c7(MARK(cons(z0, z1)))
   MARK(sel(0, x1)) -> c7(A__SEL(0, mark(x1)))
   MARK(sel(x0, from(z0))) -> c8(A__SEL(mark(x0), a__from(mark(z0))), MARK(from(z0)))
   MARK(sel(x0, sel(z0, z1))) -> c8(A__SEL(mark(x0), a__sel(mark(z0), mark(z1))), MARK(sel(z0, z1)))
   MARK(sel(x0, cons(z0, z1))) -> c8(A__SEL(mark(x0), cons(mark(z0), z1)), MARK(cons(z0, z1)))
   MARK(sel(from(z0), x1)) -> c8(A__SEL(a__from(mark(z0)), mark(x1)), MARK(x1))
   MARK(sel(sel(z0, z1), x1)) -> c8(A__SEL(a__sel(mark(z0), mark(z1)), mark(x1)), MARK(x1))
   MARK(sel(s(z0), x1)) -> c8(A__SEL(s(mark(z0)), mark(x1)), MARK(x1))
   MARK(sel(0, x1)) -> c8(A__SEL(0, mark(x1)), MARK(x1))
   MARK(sel(x0, s(z0))) -> c8(MARK(s(z0)))
   MARK(sel(cons(z0, z1), x1)) -> c8(MARK(x1))
   A__SEL(s(x0), cons(x1, from(x2))) -> c3(A__SEL(mark(x0), cons(mark(mark(x2)), from(s(mark(x2))))), MARK(x0))
   A__SEL(s(x0), cons(x1, from(from(z0)))) -> c3(A__SEL(mark(x0), a__from(a__from(mark(z0)))), MARK(x0))
   A__SEL(s(x0), cons(x1, from(sel(z0, z1)))) -> c3(A__SEL(mark(x0), a__from(a__sel(mark(z0), mark(z1)))), MARK(x0))
   A__SEL(s(x0), cons(x1, from(cons(z0, z1)))) -> c3(A__SEL(mark(x0), a__from(cons(mark(z0), z1))), MARK(x0))
   A__SEL(s(x0), cons(x1, from(s(z0)))) -> c3(A__SEL(mark(x0), a__from(s(mark(z0)))), MARK(x0))
   A__SEL(s(x0), cons(x1, from(0))) -> c3(A__SEL(mark(x0), a__from(0)), MARK(x0))
   A__SEL(s(from(z0)), cons(x1, from(x2))) -> c3(A__SEL(a__from(mark(z0)), a__from(mark(x2))), MARK(from(z0)))
   A__SEL(s(sel(z0, z1)), cons(x1, from(x2))) -> c3(A__SEL(a__sel(mark(z0), mark(z1)), a__from(mark(x2))), MARK(sel(z0, z1)))
   A__SEL(s(s(z0)), cons(x1, from(x2))) -> c3(A__SEL(s(mark(z0)), a__from(mark(x2))), MARK(s(z0)))
   A__SEL(s(x0), cons(x1, from(x2))) -> c3(MARK(x0))
   A__SEL(s(cons(z0, z1)), cons(x1, from(x2))) -> c3(MARK(cons(z0, z1)))
   A__SEL(s(0), cons(x1, from(x2))) -> c3(A__SEL(0, a__from(mark(x2))))
   A__SEL(s(x0), cons(x1, sel(x2, from(z0)))) -> c3(A__SEL(mark(x0), a__sel(mark(x2), a__from(mark(z0)))), MARK(x0))
   A__SEL(s(x0), cons(x1, sel(x2, sel(z0, z1)))) -> c3(A__SEL(mark(x0), a__sel(mark(x2), a__sel(mark(z0), mark(z1)))), MARK(x0))
   A__SEL(s(x0), cons(x1, sel(x2, cons(z0, z1)))) -> c3(A__SEL(mark(x0), a__sel(mark(x2), cons(mark(z0), z1))), MARK(x0))
   A__SEL(s(x0), cons(x1, sel(x2, s(z0)))) -> c3(A__SEL(mark(x0), a__sel(mark(x2), s(mark(z0)))), MARK(x0))
   A__SEL(s(x0), cons(x1, sel(x2, 0))) -> c3(A__SEL(mark(x0), a__sel(mark(x2), 0)), MARK(x0))
   A__SEL(s(x0), cons(x1, sel(from(z0), x3))) -> c3(A__SEL(mark(x0), a__sel(a__from(mark(z0)), mark(x3))), MARK(x0))
   A__SEL(s(x0), cons(x1, sel(sel(z0, z1), x3))) -> c3(A__SEL(mark(x0), a__sel(a__sel(mark(z0), mark(z1)), mark(x3))), MARK(x0))
   A__SEL(s(x0), cons(x1, sel(cons(z0, z1), x3))) -> c3(A__SEL(mark(x0), a__sel(cons(mark(z0), z1), mark(x3))), MARK(x0))
   A__SEL(s(x0), cons(x1, sel(s(z0), x3))) -> c3(A__SEL(mark(x0), a__sel(s(mark(z0)), mark(x3))), MARK(x0))
   A__SEL(s(x0), cons(x1, sel(0, x3))) -> c3(A__SEL(mark(x0), a__sel(0, mark(x3))), MARK(x0))
   A__SEL(s(from(z0)), cons(x1, sel(x2, x3))) -> c3(A__SEL(a__from(mark(z0)), a__sel(mark(x2), mark(x3))), MARK(from(z0)))
   A__SEL(s(sel(z0, z1)), cons(x1, sel(x2, x3))) -> c3(A__SEL(a__sel(mark(z0), mark(z1)), a__sel(mark(x2), mark(x3))), MARK(sel(z0, z1)))
   A__SEL(s(s(z0)), cons(x1, sel(x2, x3))) -> c3(A__SEL(s(mark(z0)), a__sel(mark(x2), mark(x3))), MARK(s(z0)))
   A__SEL(s(x0), cons(x1, sel(x2, x3))) -> c3(MARK(x0))
   A__SEL(s(cons(z0, z1)), cons(x1, sel(x2, x3))) -> c3(MARK(cons(z0, z1)))
   A__SEL(s(0), cons(x1, sel(x2, x3))) -> c3(A__SEL(0, a__sel(mark(x2), mark(x3))))
K tuples:none
Defined Rule Symbols:   a__from_1, a__sel_2, mark_1

Defined Pair Symbols:   A__FROM_1, A__SEL_2, MARK_1

Compound Symbols:   c_1, c2_1, c6_2, c9_1, c10_1, c3_2, c3_1, c4_2, c4_1, c7_2, c7_1, c8_2, c8_1


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

(85) CdtNarrowingProof (BOTH BOUNDS(ID, ID))
Use narrowing to replace A__SEL(s(x0), cons(x1, cons(z0, z1))) -> c3(A__SEL(mark(x0), cons(mark(z0), z1)), MARK(x0)) by 
   A__SEL(s(x0), cons(x1, cons(from(z0), x3))) -> c3(A__SEL(mark(x0), cons(a__from(mark(z0)), x3)), MARK(x0))
   A__SEL(s(x0), cons(x1, cons(sel(z0, z1), x3))) -> c3(A__SEL(mark(x0), cons(a__sel(mark(z0), mark(z1)), x3)), MARK(x0))
   A__SEL(s(x0), cons(x1, cons(cons(z0, z1), x3))) -> c3(A__SEL(mark(x0), cons(cons(mark(z0), z1), x3)), MARK(x0))
   A__SEL(s(x0), cons(x1, cons(s(z0), x3))) -> c3(A__SEL(mark(x0), cons(s(mark(z0)), x3)), MARK(x0))
   A__SEL(s(x0), cons(x1, cons(0, x3))) -> c3(A__SEL(mark(x0), cons(0, x3)), MARK(x0))
   A__SEL(s(from(z0)), cons(x1, cons(x2, x3))) -> c3(A__SEL(a__from(mark(z0)), cons(mark(x2), x3)), MARK(from(z0)))
   A__SEL(s(sel(z0, z1)), cons(x1, cons(x2, x3))) -> c3(A__SEL(a__sel(mark(z0), mark(z1)), cons(mark(x2), x3)), MARK(sel(z0, z1)))
   A__SEL(s(cons(z0, z1)), cons(x1, cons(x2, x3))) -> c3(A__SEL(cons(mark(z0), z1), cons(mark(x2), x3)), MARK(cons(z0, z1)))
   A__SEL(s(s(z0)), cons(x1, cons(x2, x3))) -> c3(A__SEL(s(mark(z0)), cons(mark(x2), x3)), MARK(s(z0)))
   A__SEL(s(0), cons(x1, cons(x2, x3))) -> c3(A__SEL(0, cons(mark(x2), x3)), MARK(0))

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

(86)
Obligation:
Complexity Dependency Tuples Problem

Rules:
   a__from(z0) -> cons(mark(z0), from(s(z0)))
   a__from(z0) -> from(z0)
   a__sel(0, cons(z0, z1)) -> mark(z0)
   a__sel(s(z0), cons(z1, z2)) -> a__sel(mark(z0), mark(z2))
   a__sel(z0, z1) -> sel(z0, z1)
   mark(from(z0)) -> a__from(mark(z0))
   mark(sel(z0, z1)) -> a__sel(mark(z0), mark(z1))
   mark(cons(z0, z1)) -> cons(mark(z0), z1)
   mark(s(z0)) -> s(mark(z0))
   mark(0) -> 0
Tuples:
   A__FROM(z0) -> c(MARK(z0))
   A__SEL(0, cons(z0, z1)) -> c2(MARK(z0))
   MARK(from(z0)) -> c6(A__FROM(mark(z0)), MARK(z0))
   MARK(cons(z0, z1)) -> c9(MARK(z0))
   MARK(s(z0)) -> c10(MARK(z0))
   A__SEL(s(from(z0)), cons(x1, x2)) -> c3(A__SEL(a__from(mark(z0)), mark(x2)), MARK(from(z0)))
   A__SEL(s(sel(z0, z1)), cons(x1, x2)) -> c3(A__SEL(a__sel(mark(z0), mark(z1)), mark(x2)), MARK(sel(z0, z1)))
   A__SEL(s(s(z0)), cons(x1, x2)) -> c3(A__SEL(s(mark(z0)), mark(x2)), MARK(s(z0)))
   A__SEL(s(x0), cons(x1, s(z0))) -> c3(MARK(x0))
   A__SEL(s(x0), cons(x1, 0)) -> c3(MARK(x0))
   A__SEL(s(cons(z0, z1)), cons(x1, x2)) -> c3(MARK(cons(z0, z1)))
   A__SEL(s(0), cons(x1, x2)) -> c3(A__SEL(0, mark(x2)))
   A__SEL(s(x0), cons(x1, from(z0))) -> c4(A__SEL(mark(x0), a__from(mark(z0))), MARK(from(z0)))
   A__SEL(s(x0), cons(x1, sel(z0, z1))) -> c4(A__SEL(mark(x0), a__sel(mark(z0), mark(z1))), MARK(sel(z0, z1)))
   A__SEL(s(x0), cons(x1, cons(z0, z1))) -> c4(A__SEL(mark(x0), cons(mark(z0), z1)), MARK(cons(z0, z1)))
   A__SEL(s(from(z0)), cons(x1, x2)) -> c4(A__SEL(a__from(mark(z0)), mark(x2)), MARK(x2))
   A__SEL(s(sel(z0, z1)), cons(x1, x2)) -> c4(A__SEL(a__sel(mark(z0), mark(z1)), mark(x2)), MARK(x2))
   A__SEL(s(s(z0)), cons(x1, x2)) -> c4(A__SEL(s(mark(z0)), mark(x2)), MARK(x2))
   A__SEL(s(0), cons(x1, x2)) -> c4(A__SEL(0, mark(x2)), MARK(x2))
   A__SEL(s(x0), cons(x1, s(z0))) -> c4(MARK(s(z0)))
   A__SEL(s(cons(z0, z1)), cons(x1, x2)) -> c4(MARK(x2))
   MARK(sel(x0, from(z0))) -> c7(A__SEL(mark(x0), a__from(mark(z0))), MARK(x0))
   MARK(sel(x0, sel(z0, z1))) -> c7(A__SEL(mark(x0), a__sel(mark(z0), mark(z1))), MARK(x0))
   MARK(sel(x0, cons(z0, z1))) -> c7(A__SEL(mark(x0), cons(mark(z0), z1)), MARK(x0))
   MARK(sel(from(z0), x1)) -> c7(A__SEL(a__from(mark(z0)), mark(x1)), MARK(from(z0)))
   MARK(sel(sel(z0, z1), x1)) -> c7(A__SEL(a__sel(mark(z0), mark(z1)), mark(x1)), MARK(sel(z0, z1)))
   MARK(sel(s(z0), x1)) -> c7(A__SEL(s(mark(z0)), mark(x1)), MARK(s(z0)))
   MARK(sel(x0, s(z0))) -> c7(MARK(x0))
   MARK(sel(x0, 0)) -> c7(MARK(x0))
   MARK(sel(cons(z0, z1), x1)) -> c7(MARK(cons(z0, z1)))
   MARK(sel(0, x1)) -> c7(A__SEL(0, mark(x1)))
   MARK(sel(x0, from(z0))) -> c8(A__SEL(mark(x0), a__from(mark(z0))), MARK(from(z0)))
   MARK(sel(x0, sel(z0, z1))) -> c8(A__SEL(mark(x0), a__sel(mark(z0), mark(z1))), MARK(sel(z0, z1)))
   MARK(sel(x0, cons(z0, z1))) -> c8(A__SEL(mark(x0), cons(mark(z0), z1)), MARK(cons(z0, z1)))
   MARK(sel(from(z0), x1)) -> c8(A__SEL(a__from(mark(z0)), mark(x1)), MARK(x1))
   MARK(sel(sel(z0, z1), x1)) -> c8(A__SEL(a__sel(mark(z0), mark(z1)), mark(x1)), MARK(x1))
   MARK(sel(s(z0), x1)) -> c8(A__SEL(s(mark(z0)), mark(x1)), MARK(x1))
   MARK(sel(0, x1)) -> c8(A__SEL(0, mark(x1)), MARK(x1))
   MARK(sel(x0, s(z0))) -> c8(MARK(s(z0)))
   MARK(sel(cons(z0, z1), x1)) -> c8(MARK(x1))
   A__SEL(s(x0), cons(x1, from(x2))) -> c3(A__SEL(mark(x0), cons(mark(mark(x2)), from(s(mark(x2))))), MARK(x0))
   A__SEL(s(x0), cons(x1, from(from(z0)))) -> c3(A__SEL(mark(x0), a__from(a__from(mark(z0)))), MARK(x0))
   A__SEL(s(x0), cons(x1, from(sel(z0, z1)))) -> c3(A__SEL(mark(x0), a__from(a__sel(mark(z0), mark(z1)))), MARK(x0))
   A__SEL(s(x0), cons(x1, from(cons(z0, z1)))) -> c3(A__SEL(mark(x0), a__from(cons(mark(z0), z1))), MARK(x0))
   A__SEL(s(x0), cons(x1, from(s(z0)))) -> c3(A__SEL(mark(x0), a__from(s(mark(z0)))), MARK(x0))
   A__SEL(s(x0), cons(x1, from(0))) -> c3(A__SEL(mark(x0), a__from(0)), MARK(x0))
   A__SEL(s(from(z0)), cons(x1, from(x2))) -> c3(A__SEL(a__from(mark(z0)), a__from(mark(x2))), MARK(from(z0)))
   A__SEL(s(sel(z0, z1)), cons(x1, from(x2))) -> c3(A__SEL(a__sel(mark(z0), mark(z1)), a__from(mark(x2))), MARK(sel(z0, z1)))
   A__SEL(s(s(z0)), cons(x1, from(x2))) -> c3(A__SEL(s(mark(z0)), a__from(mark(x2))), MARK(s(z0)))
   A__SEL(s(x0), cons(x1, from(x2))) -> c3(MARK(x0))
   A__SEL(s(cons(z0, z1)), cons(x1, from(x2))) -> c3(MARK(cons(z0, z1)))
   A__SEL(s(0), cons(x1, from(x2))) -> c3(A__SEL(0, a__from(mark(x2))))
   A__SEL(s(x0), cons(x1, sel(x2, from(z0)))) -> c3(A__SEL(mark(x0), a__sel(mark(x2), a__from(mark(z0)))), MARK(x0))
   A__SEL(s(x0), cons(x1, sel(x2, sel(z0, z1)))) -> c3(A__SEL(mark(x0), a__sel(mark(x2), a__sel(mark(z0), mark(z1)))), MARK(x0))
   A__SEL(s(x0), cons(x1, sel(x2, cons(z0, z1)))) -> c3(A__SEL(mark(x0), a__sel(mark(x2), cons(mark(z0), z1))), MARK(x0))
   A__SEL(s(x0), cons(x1, sel(x2, s(z0)))) -> c3(A__SEL(mark(x0), a__sel(mark(x2), s(mark(z0)))), MARK(x0))
   A__SEL(s(x0), cons(x1, sel(x2, 0))) -> c3(A__SEL(mark(x0), a__sel(mark(x2), 0)), MARK(x0))
   A__SEL(s(x0), cons(x1, sel(from(z0), x3))) -> c3(A__SEL(mark(x0), a__sel(a__from(mark(z0)), mark(x3))), MARK(x0))
   A__SEL(s(x0), cons(x1, sel(sel(z0, z1), x3))) -> c3(A__SEL(mark(x0), a__sel(a__sel(mark(z0), mark(z1)), mark(x3))), MARK(x0))
   A__SEL(s(x0), cons(x1, sel(cons(z0, z1), x3))) -> c3(A__SEL(mark(x0), a__sel(cons(mark(z0), z1), mark(x3))), MARK(x0))
   A__SEL(s(x0), cons(x1, sel(s(z0), x3))) -> c3(A__SEL(mark(x0), a__sel(s(mark(z0)), mark(x3))), MARK(x0))
   A__SEL(s(x0), cons(x1, sel(0, x3))) -> c3(A__SEL(mark(x0), a__sel(0, mark(x3))), MARK(x0))
   A__SEL(s(from(z0)), cons(x1, sel(x2, x3))) -> c3(A__SEL(a__from(mark(z0)), a__sel(mark(x2), mark(x3))), MARK(from(z0)))
   A__SEL(s(sel(z0, z1)), cons(x1, sel(x2, x3))) -> c3(A__SEL(a__sel(mark(z0), mark(z1)), a__sel(mark(x2), mark(x3))), MARK(sel(z0, z1)))
   A__SEL(s(s(z0)), cons(x1, sel(x2, x3))) -> c3(A__SEL(s(mark(z0)), a__sel(mark(x2), mark(x3))), MARK(s(z0)))
   A__SEL(s(x0), cons(x1, sel(x2, x3))) -> c3(MARK(x0))
   A__SEL(s(cons(z0, z1)), cons(x1, sel(x2, x3))) -> c3(MARK(cons(z0, z1)))
   A__SEL(s(0), cons(x1, sel(x2, x3))) -> c3(A__SEL(0, a__sel(mark(x2), mark(x3))))
   A__SEL(s(x0), cons(x1, cons(from(z0), x3))) -> c3(A__SEL(mark(x0), cons(a__from(mark(z0)), x3)), MARK(x0))
   A__SEL(s(x0), cons(x1, cons(sel(z0, z1), x3))) -> c3(A__SEL(mark(x0), cons(a__sel(mark(z0), mark(z1)), x3)), MARK(x0))
   A__SEL(s(x0), cons(x1, cons(cons(z0, z1), x3))) -> c3(A__SEL(mark(x0), cons(cons(mark(z0), z1), x3)), MARK(x0))
   A__SEL(s(x0), cons(x1, cons(s(z0), x3))) -> c3(A__SEL(mark(x0), cons(s(mark(z0)), x3)), MARK(x0))
   A__SEL(s(x0), cons(x1, cons(0, x3))) -> c3(A__SEL(mark(x0), cons(0, x3)), MARK(x0))
   A__SEL(s(from(z0)), cons(x1, cons(x2, x3))) -> c3(A__SEL(a__from(mark(z0)), cons(mark(x2), x3)), MARK(from(z0)))
   A__SEL(s(sel(z0, z1)), cons(x1, cons(x2, x3))) -> c3(A__SEL(a__sel(mark(z0), mark(z1)), cons(mark(x2), x3)), MARK(sel(z0, z1)))
   A__SEL(s(cons(z0, z1)), cons(x1, cons(x2, x3))) -> c3(A__SEL(cons(mark(z0), z1), cons(mark(x2), x3)), MARK(cons(z0, z1)))
   A__SEL(s(s(z0)), cons(x1, cons(x2, x3))) -> c3(A__SEL(s(mark(z0)), cons(mark(x2), x3)), MARK(s(z0)))
   A__SEL(s(0), cons(x1, cons(x2, x3))) -> c3(A__SEL(0, cons(mark(x2), x3)), MARK(0))
S tuples:
   A__FROM(z0) -> c(MARK(z0))
   A__SEL(0, cons(z0, z1)) -> c2(MARK(z0))
   MARK(from(z0)) -> c6(A__FROM(mark(z0)), MARK(z0))
   MARK(cons(z0, z1)) -> c9(MARK(z0))
   MARK(s(z0)) -> c10(MARK(z0))
   A__SEL(s(from(z0)), cons(x1, x2)) -> c3(A__SEL(a__from(mark(z0)), mark(x2)), MARK(from(z0)))
   A__SEL(s(sel(z0, z1)), cons(x1, x2)) -> c3(A__SEL(a__sel(mark(z0), mark(z1)), mark(x2)), MARK(sel(z0, z1)))
   A__SEL(s(s(z0)), cons(x1, x2)) -> c3(A__SEL(s(mark(z0)), mark(x2)), MARK(s(z0)))
   A__SEL(s(x0), cons(x1, s(z0))) -> c3(MARK(x0))
   A__SEL(s(x0), cons(x1, 0)) -> c3(MARK(x0))
   A__SEL(s(cons(z0, z1)), cons(x1, x2)) -> c3(MARK(cons(z0, z1)))
   A__SEL(s(0), cons(x1, x2)) -> c3(A__SEL(0, mark(x2)))
   A__SEL(s(x0), cons(x1, from(z0))) -> c4(A__SEL(mark(x0), a__from(mark(z0))), MARK(from(z0)))
   A__SEL(s(x0), cons(x1, sel(z0, z1))) -> c4(A__SEL(mark(x0), a__sel(mark(z0), mark(z1))), MARK(sel(z0, z1)))
   A__SEL(s(x0), cons(x1, cons(z0, z1))) -> c4(A__SEL(mark(x0), cons(mark(z0), z1)), MARK(cons(z0, z1)))
   A__SEL(s(from(z0)), cons(x1, x2)) -> c4(A__SEL(a__from(mark(z0)), mark(x2)), MARK(x2))
   A__SEL(s(sel(z0, z1)), cons(x1, x2)) -> c4(A__SEL(a__sel(mark(z0), mark(z1)), mark(x2)), MARK(x2))
   A__SEL(s(s(z0)), cons(x1, x2)) -> c4(A__SEL(s(mark(z0)), mark(x2)), MARK(x2))
   A__SEL(s(0), cons(x1, x2)) -> c4(A__SEL(0, mark(x2)), MARK(x2))
   A__SEL(s(x0), cons(x1, s(z0))) -> c4(MARK(s(z0)))
   A__SEL(s(cons(z0, z1)), cons(x1, x2)) -> c4(MARK(x2))
   MARK(sel(x0, from(z0))) -> c7(A__SEL(mark(x0), a__from(mark(z0))), MARK(x0))
   MARK(sel(x0, sel(z0, z1))) -> c7(A__SEL(mark(x0), a__sel(mark(z0), mark(z1))), MARK(x0))
   MARK(sel(x0, cons(z0, z1))) -> c7(A__SEL(mark(x0), cons(mark(z0), z1)), MARK(x0))
   MARK(sel(from(z0), x1)) -> c7(A__SEL(a__from(mark(z0)), mark(x1)), MARK(from(z0)))
   MARK(sel(sel(z0, z1), x1)) -> c7(A__SEL(a__sel(mark(z0), mark(z1)), mark(x1)), MARK(sel(z0, z1)))
   MARK(sel(s(z0), x1)) -> c7(A__SEL(s(mark(z0)), mark(x1)), MARK(s(z0)))
   MARK(sel(x0, s(z0))) -> c7(MARK(x0))
   MARK(sel(x0, 0)) -> c7(MARK(x0))
   MARK(sel(cons(z0, z1), x1)) -> c7(MARK(cons(z0, z1)))
   MARK(sel(0, x1)) -> c7(A__SEL(0, mark(x1)))
   MARK(sel(x0, from(z0))) -> c8(A__SEL(mark(x0), a__from(mark(z0))), MARK(from(z0)))
   MARK(sel(x0, sel(z0, z1))) -> c8(A__SEL(mark(x0), a__sel(mark(z0), mark(z1))), MARK(sel(z0, z1)))
   MARK(sel(x0, cons(z0, z1))) -> c8(A__SEL(mark(x0), cons(mark(z0), z1)), MARK(cons(z0, z1)))
   MARK(sel(from(z0), x1)) -> c8(A__SEL(a__from(mark(z0)), mark(x1)), MARK(x1))
   MARK(sel(sel(z0, z1), x1)) -> c8(A__SEL(a__sel(mark(z0), mark(z1)), mark(x1)), MARK(x1))
   MARK(sel(s(z0), x1)) -> c8(A__SEL(s(mark(z0)), mark(x1)), MARK(x1))
   MARK(sel(0, x1)) -> c8(A__SEL(0, mark(x1)), MARK(x1))
   MARK(sel(x0, s(z0))) -> c8(MARK(s(z0)))
   MARK(sel(cons(z0, z1), x1)) -> c8(MARK(x1))
   A__SEL(s(x0), cons(x1, from(x2))) -> c3(A__SEL(mark(x0), cons(mark(mark(x2)), from(s(mark(x2))))), MARK(x0))
   A__SEL(s(x0), cons(x1, from(from(z0)))) -> c3(A__SEL(mark(x0), a__from(a__from(mark(z0)))), MARK(x0))
   A__SEL(s(x0), cons(x1, from(sel(z0, z1)))) -> c3(A__SEL(mark(x0), a__from(a__sel(mark(z0), mark(z1)))), MARK(x0))
   A__SEL(s(x0), cons(x1, from(cons(z0, z1)))) -> c3(A__SEL(mark(x0), a__from(cons(mark(z0), z1))), MARK(x0))
   A__SEL(s(x0), cons(x1, from(s(z0)))) -> c3(A__SEL(mark(x0), a__from(s(mark(z0)))), MARK(x0))
   A__SEL(s(x0), cons(x1, from(0))) -> c3(A__SEL(mark(x0), a__from(0)), MARK(x0))
   A__SEL(s(from(z0)), cons(x1, from(x2))) -> c3(A__SEL(a__from(mark(z0)), a__from(mark(x2))), MARK(from(z0)))
   A__SEL(s(sel(z0, z1)), cons(x1, from(x2))) -> c3(A__SEL(a__sel(mark(z0), mark(z1)), a__from(mark(x2))), MARK(sel(z0, z1)))
   A__SEL(s(s(z0)), cons(x1, from(x2))) -> c3(A__SEL(s(mark(z0)), a__from(mark(x2))), MARK(s(z0)))
   A__SEL(s(x0), cons(x1, from(x2))) -> c3(MARK(x0))
   A__SEL(s(cons(z0, z1)), cons(x1, from(x2))) -> c3(MARK(cons(z0, z1)))
   A__SEL(s(0), cons(x1, from(x2))) -> c3(A__SEL(0, a__from(mark(x2))))
   A__SEL(s(x0), cons(x1, sel(x2, from(z0)))) -> c3(A__SEL(mark(x0), a__sel(mark(x2), a__from(mark(z0)))), MARK(x0))
   A__SEL(s(x0), cons(x1, sel(x2, sel(z0, z1)))) -> c3(A__SEL(mark(x0), a__sel(mark(x2), a__sel(mark(z0), mark(z1)))), MARK(x0))
   A__SEL(s(x0), cons(x1, sel(x2, cons(z0, z1)))) -> c3(A__SEL(mark(x0), a__sel(mark(x2), cons(mark(z0), z1))), MARK(x0))
   A__SEL(s(x0), cons(x1, sel(x2, s(z0)))) -> c3(A__SEL(mark(x0), a__sel(mark(x2), s(mark(z0)))), MARK(x0))
   A__SEL(s(x0), cons(x1, sel(x2, 0))) -> c3(A__SEL(mark(x0), a__sel(mark(x2), 0)), MARK(x0))
   A__SEL(s(x0), cons(x1, sel(from(z0), x3))) -> c3(A__SEL(mark(x0), a__sel(a__from(mark(z0)), mark(x3))), MARK(x0))
   A__SEL(s(x0), cons(x1, sel(sel(z0, z1), x3))) -> c3(A__SEL(mark(x0), a__sel(a__sel(mark(z0), mark(z1)), mark(x3))), MARK(x0))
   A__SEL(s(x0), cons(x1, sel(cons(z0, z1), x3))) -> c3(A__SEL(mark(x0), a__sel(cons(mark(z0), z1), mark(x3))), MARK(x0))
   A__SEL(s(x0), cons(x1, sel(s(z0), x3))) -> c3(A__SEL(mark(x0), a__sel(s(mark(z0)), mark(x3))), MARK(x0))
   A__SEL(s(x0), cons(x1, sel(0, x3))) -> c3(A__SEL(mark(x0), a__sel(0, mark(x3))), MARK(x0))
   A__SEL(s(from(z0)), cons(x1, sel(x2, x3))) -> c3(A__SEL(a__from(mark(z0)), a__sel(mark(x2), mark(x3))), MARK(from(z0)))
   A__SEL(s(sel(z0, z1)), cons(x1, sel(x2, x3))) -> c3(A__SEL(a__sel(mark(z0), mark(z1)), a__sel(mark(x2), mark(x3))), MARK(sel(z0, z1)))
   A__SEL(s(s(z0)), cons(x1, sel(x2, x3))) -> c3(A__SEL(s(mark(z0)), a__sel(mark(x2), mark(x3))), MARK(s(z0)))
   A__SEL(s(x0), cons(x1, sel(x2, x3))) -> c3(MARK(x0))
   A__SEL(s(cons(z0, z1)), cons(x1, sel(x2, x3))) -> c3(MARK(cons(z0, z1)))
   A__SEL(s(0), cons(x1, sel(x2, x3))) -> c3(A__SEL(0, a__sel(mark(x2), mark(x3))))
   A__SEL(s(x0), cons(x1, cons(from(z0), x3))) -> c3(A__SEL(mark(x0), cons(a__from(mark(z0)), x3)), MARK(x0))
   A__SEL(s(x0), cons(x1, cons(sel(z0, z1), x3))) -> c3(A__SEL(mark(x0), cons(a__sel(mark(z0), mark(z1)), x3)), MARK(x0))
   A__SEL(s(x0), cons(x1, cons(cons(z0, z1), x3))) -> c3(A__SEL(mark(x0), cons(cons(mark(z0), z1), x3)), MARK(x0))
   A__SEL(s(x0), cons(x1, cons(s(z0), x3))) -> c3(A__SEL(mark(x0), cons(s(mark(z0)), x3)), MARK(x0))
   A__SEL(s(x0), cons(x1, cons(0, x3))) -> c3(A__SEL(mark(x0), cons(0, x3)), MARK(x0))
   A__SEL(s(from(z0)), cons(x1, cons(x2, x3))) -> c3(A__SEL(a__from(mark(z0)), cons(mark(x2), x3)), MARK(from(z0)))
   A__SEL(s(sel(z0, z1)), cons(x1, cons(x2, x3))) -> c3(A__SEL(a__sel(mark(z0), mark(z1)), cons(mark(x2), x3)), MARK(sel(z0, z1)))
   A__SEL(s(cons(z0, z1)), cons(x1, cons(x2, x3))) -> c3(A__SEL(cons(mark(z0), z1), cons(mark(x2), x3)), MARK(cons(z0, z1)))
   A__SEL(s(s(z0)), cons(x1, cons(x2, x3))) -> c3(A__SEL(s(mark(z0)), cons(mark(x2), x3)), MARK(s(z0)))
   A__SEL(s(0), cons(x1, cons(x2, x3))) -> c3(A__SEL(0, cons(mark(x2), x3)), MARK(0))
K tuples:none
Defined Rule Symbols:   a__from_1, a__sel_2, mark_1

Defined Pair Symbols:   A__FROM_1, A__SEL_2, MARK_1

Compound Symbols:   c_1, c2_1, c6_2, c9_1, c10_1, c3_2, c3_1, c4_2, c4_1, c7_2, c7_1, c8_2, c8_1


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

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

(88)
Obligation:
Complexity Dependency Tuples Problem

Rules:
   a__from(z0) -> cons(mark(z0), from(s(z0)))
   a__from(z0) -> from(z0)
   a__sel(0, cons(z0, z1)) -> mark(z0)
   a__sel(s(z0), cons(z1, z2)) -> a__sel(mark(z0), mark(z2))
   a__sel(z0, z1) -> sel(z0, z1)
   mark(from(z0)) -> a__from(mark(z0))
   mark(sel(z0, z1)) -> a__sel(mark(z0), mark(z1))
   mark(cons(z0, z1)) -> cons(mark(z0), z1)
   mark(s(z0)) -> s(mark(z0))
   mark(0) -> 0
Tuples:
   A__FROM(z0) -> c(MARK(z0))
   A__SEL(0, cons(z0, z1)) -> c2(MARK(z0))
   MARK(from(z0)) -> c6(A__FROM(mark(z0)), MARK(z0))
   MARK(cons(z0, z1)) -> c9(MARK(z0))
   MARK(s(z0)) -> c10(MARK(z0))
   A__SEL(s(from(z0)), cons(x1, x2)) -> c3(A__SEL(a__from(mark(z0)), mark(x2)), MARK(from(z0)))
   A__SEL(s(sel(z0, z1)), cons(x1, x2)) -> c3(A__SEL(a__sel(mark(z0), mark(z1)), mark(x2)), MARK(sel(z0, z1)))
   A__SEL(s(s(z0)), cons(x1, x2)) -> c3(A__SEL(s(mark(z0)), mark(x2)), MARK(s(z0)))
   A__SEL(s(x0), cons(x1, s(z0))) -> c3(MARK(x0))
   A__SEL(s(x0), cons(x1, 0)) -> c3(MARK(x0))
   A__SEL(s(cons(z0, z1)), cons(x1, x2)) -> c3(MARK(cons(z0, z1)))
   A__SEL(s(0), cons(x1, x2)) -> c3(A__SEL(0, mark(x2)))
   A__SEL(s(x0), cons(x1, from(z0))) -> c4(A__SEL(mark(x0), a__from(mark(z0))), MARK(from(z0)))
   A__SEL(s(x0), cons(x1, sel(z0, z1))) -> c4(A__SEL(mark(x0), a__sel(mark(z0), mark(z1))), MARK(sel(z0, z1)))
   A__SEL(s(x0), cons(x1, cons(z0, z1))) -> c4(A__SEL(mark(x0), cons(mark(z0), z1)), MARK(cons(z0, z1)))
   A__SEL(s(from(z0)), cons(x1, x2)) -> c4(A__SEL(a__from(mark(z0)), mark(x2)), MARK(x2))
   A__SEL(s(sel(z0, z1)), cons(x1, x2)) -> c4(A__SEL(a__sel(mark(z0), mark(z1)), mark(x2)), MARK(x2))
   A__SEL(s(s(z0)), cons(x1, x2)) -> c4(A__SEL(s(mark(z0)), mark(x2)), MARK(x2))
   A__SEL(s(0), cons(x1, x2)) -> c4(A__SEL(0, mark(x2)), MARK(x2))
   A__SEL(s(x0), cons(x1, s(z0))) -> c4(MARK(s(z0)))
   A__SEL(s(cons(z0, z1)), cons(x1, x2)) -> c4(MARK(x2))
   MARK(sel(x0, from(z0))) -> c7(A__SEL(mark(x0), a__from(mark(z0))), MARK(x0))
   MARK(sel(x0, sel(z0, z1))) -> c7(A__SEL(mark(x0), a__sel(mark(z0), mark(z1))), MARK(x0))
   MARK(sel(x0, cons(z0, z1))) -> c7(A__SEL(mark(x0), cons(mark(z0), z1)), MARK(x0))
   MARK(sel(from(z0), x1)) -> c7(A__SEL(a__from(mark(z0)), mark(x1)), MARK(from(z0)))
   MARK(sel(sel(z0, z1), x1)) -> c7(A__SEL(a__sel(mark(z0), mark(z1)), mark(x1)), MARK(sel(z0, z1)))
   MARK(sel(s(z0), x1)) -> c7(A__SEL(s(mark(z0)), mark(x1)), MARK(s(z0)))
   MARK(sel(x0, s(z0))) -> c7(MARK(x0))
   MARK(sel(x0, 0)) -> c7(MARK(x0))
   MARK(sel(cons(z0, z1), x1)) -> c7(MARK(cons(z0, z1)))
   MARK(sel(0, x1)) -> c7(A__SEL(0, mark(x1)))
   MARK(sel(x0, from(z0))) -> c8(A__SEL(mark(x0), a__from(mark(z0))), MARK(from(z0)))
   MARK(sel(x0, sel(z0, z1))) -> c8(A__SEL(mark(x0), a__sel(mark(z0), mark(z1))), MARK(sel(z0, z1)))
   MARK(sel(x0, cons(z0, z1))) -> c8(A__SEL(mark(x0), cons(mark(z0), z1)), MARK(cons(z0, z1)))
   MARK(sel(from(z0), x1)) -> c8(A__SEL(a__from(mark(z0)), mark(x1)), MARK(x1))
   MARK(sel(sel(z0, z1), x1)) -> c8(A__SEL(a__sel(mark(z0), mark(z1)), mark(x1)), MARK(x1))
   MARK(sel(s(z0), x1)) -> c8(A__SEL(s(mark(z0)), mark(x1)), MARK(x1))
   MARK(sel(0, x1)) -> c8(A__SEL(0, mark(x1)), MARK(x1))
   MARK(sel(x0, s(z0))) -> c8(MARK(s(z0)))
   MARK(sel(cons(z0, z1), x1)) -> c8(MARK(x1))
   A__SEL(s(x0), cons(x1, from(x2))) -> c3(A__SEL(mark(x0), cons(mark(mark(x2)), from(s(mark(x2))))), MARK(x0))
   A__SEL(s(x0), cons(x1, from(from(z0)))) -> c3(A__SEL(mark(x0), a__from(a__from(mark(z0)))), MARK(x0))
   A__SEL(s(x0), cons(x1, from(sel(z0, z1)))) -> c3(A__SEL(mark(x0), a__from(a__sel(mark(z0), mark(z1)))), MARK(x0))
   A__SEL(s(x0), cons(x1, from(cons(z0, z1)))) -> c3(A__SEL(mark(x0), a__from(cons(mark(z0), z1))), MARK(x0))
   A__SEL(s(x0), cons(x1, from(s(z0)))) -> c3(A__SEL(mark(x0), a__from(s(mark(z0)))), MARK(x0))
   A__SEL(s(x0), cons(x1, from(0))) -> c3(A__SEL(mark(x0), a__from(0)), MARK(x0))
   A__SEL(s(from(z0)), cons(x1, from(x2))) -> c3(A__SEL(a__from(mark(z0)), a__from(mark(x2))), MARK(from(z0)))
   A__SEL(s(sel(z0, z1)), cons(x1, from(x2))) -> c3(A__SEL(a__sel(mark(z0), mark(z1)), a__from(mark(x2))), MARK(sel(z0, z1)))
   A__SEL(s(s(z0)), cons(x1, from(x2))) -> c3(A__SEL(s(mark(z0)), a__from(mark(x2))), MARK(s(z0)))
   A__SEL(s(x0), cons(x1, from(x2))) -> c3(MARK(x0))
   A__SEL(s(cons(z0, z1)), cons(x1, from(x2))) -> c3(MARK(cons(z0, z1)))
   A__SEL(s(0), cons(x1, from(x2))) -> c3(A__SEL(0, a__from(mark(x2))))
   A__SEL(s(x0), cons(x1, sel(x2, from(z0)))) -> c3(A__SEL(mark(x0), a__sel(mark(x2), a__from(mark(z0)))), MARK(x0))
   A__SEL(s(x0), cons(x1, sel(x2, sel(z0, z1)))) -> c3(A__SEL(mark(x0), a__sel(mark(x2), a__sel(mark(z0), mark(z1)))), MARK(x0))
   A__SEL(s(x0), cons(x1, sel(x2, cons(z0, z1)))) -> c3(A__SEL(mark(x0), a__sel(mark(x2), cons(mark(z0), z1))), MARK(x0))
   A__SEL(s(x0), cons(x1, sel(x2, s(z0)))) -> c3(A__SEL(mark(x0), a__sel(mark(x2), s(mark(z0)))), MARK(x0))
   A__SEL(s(x0), cons(x1, sel(x2, 0))) -> c3(A__SEL(mark(x0), a__sel(mark(x2), 0)), MARK(x0))
   A__SEL(s(x0), cons(x1, sel(from(z0), x3))) -> c3(A__SEL(mark(x0), a__sel(a__from(mark(z0)), mark(x3))), MARK(x0))
   A__SEL(s(x0), cons(x1, sel(sel(z0, z1), x3))) -> c3(A__SEL(mark(x0), a__sel(a__sel(mark(z0), mark(z1)), mark(x3))), MARK(x0))
   A__SEL(s(x0), cons(x1, sel(cons(z0, z1), x3))) -> c3(A__SEL(mark(x0), a__sel(cons(mark(z0), z1), mark(x3))), MARK(x0))
   A__SEL(s(x0), cons(x1, sel(s(z0), x3))) -> c3(A__SEL(mark(x0), a__sel(s(mark(z0)), mark(x3))), MARK(x0))
   A__SEL(s(x0), cons(x1, sel(0, x3))) -> c3(A__SEL(mark(x0), a__sel(0, mark(x3))), MARK(x0))
   A__SEL(s(from(z0)), cons(x1, sel(x2, x3))) -> c3(A__SEL(a__from(mark(z0)), a__sel(mark(x2), mark(x3))), MARK(from(z0)))
   A__SEL(s(sel(z0, z1)), cons(x1, sel(x2, x3))) -> c3(A__SEL(a__sel(mark(z0), mark(z1)), a__sel(mark(x2), mark(x3))), MARK(sel(z0, z1)))
   A__SEL(s(s(z0)), cons(x1, sel(x2, x3))) -> c3(A__SEL(s(mark(z0)), a__sel(mark(x2), mark(x3))), MARK(s(z0)))
   A__SEL(s(x0), cons(x1, sel(x2, x3))) -> c3(MARK(x0))
   A__SEL(s(cons(z0, z1)), cons(x1, sel(x2, x3))) -> c3(MARK(cons(z0, z1)))
   A__SEL(s(0), cons(x1, sel(x2, x3))) -> c3(A__SEL(0, a__sel(mark(x2), mark(x3))))
   A__SEL(s(x0), cons(x1, cons(from(z0), x3))) -> c3(A__SEL(mark(x0), cons(a__from(mark(z0)), x3)), MARK(x0))
   A__SEL(s(x0), cons(x1, cons(sel(z0, z1), x3))) -> c3(A__SEL(mark(x0), cons(a__sel(mark(z0), mark(z1)), x3)), MARK(x0))
   A__SEL(s(x0), cons(x1, cons(cons(z0, z1), x3))) -> c3(A__SEL(mark(x0), cons(cons(mark(z0), z1), x3)), MARK(x0))
   A__SEL(s(x0), cons(x1, cons(s(z0), x3))) -> c3(A__SEL(mark(x0), cons(s(mark(z0)), x3)), MARK(x0))
   A__SEL(s(x0), cons(x1, cons(0, x3))) -> c3(A__SEL(mark(x0), cons(0, x3)), MARK(x0))
   A__SEL(s(from(z0)), cons(x1, cons(x2, x3))) -> c3(A__SEL(a__from(mark(z0)), cons(mark(x2), x3)), MARK(from(z0)))
   A__SEL(s(sel(z0, z1)), cons(x1, cons(x2, x3))) -> c3(A__SEL(a__sel(mark(z0), mark(z1)), cons(mark(x2), x3)), MARK(sel(z0, z1)))
   A__SEL(s(s(z0)), cons(x1, cons(x2, x3))) -> c3(A__SEL(s(mark(z0)), cons(mark(x2), x3)), MARK(s(z0)))
   A__SEL(s(cons(z0, z1)), cons(x1, cons(x2, x3))) -> c3(MARK(cons(z0, z1)))
   A__SEL(s(0), cons(x1, cons(x2, x3))) -> c3(A__SEL(0, cons(mark(x2), x3)))
S tuples:
   A__FROM(z0) -> c(MARK(z0))
   A__SEL(0, cons(z0, z1)) -> c2(MARK(z0))
   MARK(from(z0)) -> c6(A__FROM(mark(z0)), MARK(z0))
   MARK(cons(z0, z1)) -> c9(MARK(z0))
   MARK(s(z0)) -> c10(MARK(z0))
   A__SEL(s(from(z0)), cons(x1, x2)) -> c3(A__SEL(a__from(mark(z0)), mark(x2)), MARK(from(z0)))
   A__SEL(s(sel(z0, z1)), cons(x1, x2)) -> c3(A__SEL(a__sel(mark(z0), mark(z1)), mark(x2)), MARK(sel(z0, z1)))
   A__SEL(s(s(z0)), cons(x1, x2)) -> c3(A__SEL(s(mark(z0)), mark(x2)), MARK(s(z0)))
   A__SEL(s(x0), cons(x1, s(z0))) -> c3(MARK(x0))
   A__SEL(s(x0), cons(x1, 0)) -> c3(MARK(x0))
   A__SEL(s(cons(z0, z1)), cons(x1, x2)) -> c3(MARK(cons(z0, z1)))
   A__SEL(s(0), cons(x1, x2)) -> c3(A__SEL(0, mark(x2)))
   A__SEL(s(x0), cons(x1, from(z0))) -> c4(A__SEL(mark(x0), a__from(mark(z0))), MARK(from(z0)))
   A__SEL(s(x0), cons(x1, sel(z0, z1))) -> c4(A__SEL(mark(x0), a__sel(mark(z0), mark(z1))), MARK(sel(z0, z1)))
   A__SEL(s(x0), cons(x1, cons(z0, z1))) -> c4(A__SEL(mark(x0), cons(mark(z0), z1)), MARK(cons(z0, z1)))
   A__SEL(s(from(z0)), cons(x1, x2)) -> c4(A__SEL(a__from(mark(z0)), mark(x2)), MARK(x2))
   A__SEL(s(sel(z0, z1)), cons(x1, x2)) -> c4(A__SEL(a__sel(mark(z0), mark(z1)), mark(x2)), MARK(x2))
   A__SEL(s(s(z0)), cons(x1, x2)) -> c4(A__SEL(s(mark(z0)), mark(x2)), MARK(x2))
   A__SEL(s(0), cons(x1, x2)) -> c4(A__SEL(0, mark(x2)), MARK(x2))
   A__SEL(s(x0), cons(x1, s(z0))) -> c4(MARK(s(z0)))
   A__SEL(s(cons(z0, z1)), cons(x1, x2)) -> c4(MARK(x2))
   MARK(sel(x0, from(z0))) -> c7(A__SEL(mark(x0), a__from(mark(z0))), MARK(x0))
   MARK(sel(x0, sel(z0, z1))) -> c7(A__SEL(mark(x0), a__sel(mark(z0), mark(z1))), MARK(x0))
   MARK(sel(x0, cons(z0, z1))) -> c7(A__SEL(mark(x0), cons(mark(z0), z1)), MARK(x0))
   MARK(sel(from(z0), x1)) -> c7(A__SEL(a__from(mark(z0)), mark(x1)), MARK(from(z0)))
   MARK(sel(sel(z0, z1), x1)) -> c7(A__SEL(a__sel(mark(z0), mark(z1)), mark(x1)), MARK(sel(z0, z1)))
   MARK(sel(s(z0), x1)) -> c7(A__SEL(s(mark(z0)), mark(x1)), MARK(s(z0)))
   MARK(sel(x0, s(z0))) -> c7(MARK(x0))
   MARK(sel(x0, 0)) -> c7(MARK(x0))
   MARK(sel(cons(z0, z1), x1)) -> c7(MARK(cons(z0, z1)))
   MARK(sel(0, x1)) -> c7(A__SEL(0, mark(x1)))
   MARK(sel(x0, from(z0))) -> c8(A__SEL(mark(x0), a__from(mark(z0))), MARK(from(z0)))
   MARK(sel(x0, sel(z0, z1))) -> c8(A__SEL(mark(x0), a__sel(mark(z0), mark(z1))), MARK(sel(z0, z1)))
   MARK(sel(x0, cons(z0, z1))) -> c8(A__SEL(mark(x0), cons(mark(z0), z1)), MARK(cons(z0, z1)))
   MARK(sel(from(z0), x1)) -> c8(A__SEL(a__from(mark(z0)), mark(x1)), MARK(x1))
   MARK(sel(sel(z0, z1), x1)) -> c8(A__SEL(a__sel(mark(z0), mark(z1)), mark(x1)), MARK(x1))
   MARK(sel(s(z0), x1)) -> c8(A__SEL(s(mark(z0)), mark(x1)), MARK(x1))
   MARK(sel(0, x1)) -> c8(A__SEL(0, mark(x1)), MARK(x1))
   MARK(sel(x0, s(z0))) -> c8(MARK(s(z0)))
   MARK(sel(cons(z0, z1), x1)) -> c8(MARK(x1))
   A__SEL(s(x0), cons(x1, from(x2))) -> c3(A__SEL(mark(x0), cons(mark(mark(x2)), from(s(mark(x2))))), MARK(x0))
   A__SEL(s(x0), cons(x1, from(from(z0)))) -> c3(A__SEL(mark(x0), a__from(a__from(mark(z0)))), MARK(x0))
   A__SEL(s(x0), cons(x1, from(sel(z0, z1)))) -> c3(A__SEL(mark(x0), a__from(a__sel(mark(z0), mark(z1)))), MARK(x0))
   A__SEL(s(x0), cons(x1, from(cons(z0, z1)))) -> c3(A__SEL(mark(x0), a__from(cons(mark(z0), z1))), MARK(x0))
   A__SEL(s(x0), cons(x1, from(s(z0)))) -> c3(A__SEL(mark(x0), a__from(s(mark(z0)))), MARK(x0))
   A__SEL(s(x0), cons(x1, from(0))) -> c3(A__SEL(mark(x0), a__from(0)), MARK(x0))
   A__SEL(s(from(z0)), cons(x1, from(x2))) -> c3(A__SEL(a__from(mark(z0)), a__from(mark(x2))), MARK(from(z0)))
   A__SEL(s(sel(z0, z1)), cons(x1, from(x2))) -> c3(A__SEL(a__sel(mark(z0), mark(z1)), a__from(mark(x2))), MARK(sel(z0, z1)))
   A__SEL(s(s(z0)), cons(x1, from(x2))) -> c3(A__SEL(s(mark(z0)), a__from(mark(x2))), MARK(s(z0)))
   A__SEL(s(x0), cons(x1, from(x2))) -> c3(MARK(x0))
   A__SEL(s(cons(z0, z1)), cons(x1, from(x2))) -> c3(MARK(cons(z0, z1)))
   A__SEL(s(0), cons(x1, from(x2))) -> c3(A__SEL(0, a__from(mark(x2))))
   A__SEL(s(x0), cons(x1, sel(x2, from(z0)))) -> c3(A__SEL(mark(x0), a__sel(mark(x2), a__from(mark(z0)))), MARK(x0))
   A__SEL(s(x0), cons(x1, sel(x2, sel(z0, z1)))) -> c3(A__SEL(mark(x0), a__sel(mark(x2), a__sel(mark(z0), mark(z1)))), MARK(x0))
   A__SEL(s(x0), cons(x1, sel(x2, cons(z0, z1)))) -> c3(A__SEL(mark(x0), a__sel(mark(x2), cons(mark(z0), z1))), MARK(x0))
   A__SEL(s(x0), cons(x1, sel(x2, s(z0)))) -> c3(A__SEL(mark(x0), a__sel(mark(x2), s(mark(z0)))), MARK(x0))
   A__SEL(s(x0), cons(x1, sel(x2, 0))) -> c3(A__SEL(mark(x0), a__sel(mark(x2), 0)), MARK(x0))
   A__SEL(s(x0), cons(x1, sel(from(z0), x3))) -> c3(A__SEL(mark(x0), a__sel(a__from(mark(z0)), mark(x3))), MARK(x0))
   A__SEL(s(x0), cons(x1, sel(sel(z0, z1), x3))) -> c3(A__SEL(mark(x0), a__sel(a__sel(mark(z0), mark(z1)), mark(x3))), MARK(x0))
   A__SEL(s(x0), cons(x1, sel(cons(z0, z1), x3))) -> c3(A__SEL(mark(x0), a__sel(cons(mark(z0), z1), mark(x3))), MARK(x0))
   A__SEL(s(x0), cons(x1, sel(s(z0), x3))) -> c3(A__SEL(mark(x0), a__sel(s(mark(z0)), mark(x3))), MARK(x0))
   A__SEL(s(x0), cons(x1, sel(0, x3))) -> c3(A__SEL(mark(x0), a__sel(0, mark(x3))), MARK(x0))
   A__SEL(s(from(z0)), cons(x1, sel(x2, x3))) -> c3(A__SEL(a__from(mark(z0)), a__sel(mark(x2), mark(x3))), MARK(from(z0)))
   A__SEL(s(sel(z0, z1)), cons(x1, sel(x2, x3))) -> c3(A__SEL(a__sel(mark(z0), mark(z1)), a__sel(mark(x2), mark(x3))), MARK(sel(z0, z1)))
   A__SEL(s(s(z0)), cons(x1, sel(x2, x3))) -> c3(A__SEL(s(mark(z0)), a__sel(mark(x2), mark(x3))), MARK(s(z0)))
   A__SEL(s(x0), cons(x1, sel(x2, x3))) -> c3(MARK(x0))
   A__SEL(s(cons(z0, z1)), cons(x1, sel(x2, x3))) -> c3(MARK(cons(z0, z1)))
   A__SEL(s(0), cons(x1, sel(x2, x3))) -> c3(A__SEL(0, a__sel(mark(x2), mark(x3))))
   A__SEL(s(x0), cons(x1, cons(from(z0), x3))) -> c3(A__SEL(mark(x0), cons(a__from(mark(z0)), x3)), MARK(x0))
   A__SEL(s(x0), cons(x1, cons(sel(z0, z1), x3))) -> c3(A__SEL(mark(x0), cons(a__sel(mark(z0), mark(z1)), x3)), MARK(x0))
   A__SEL(s(x0), cons(x1, cons(cons(z0, z1), x3))) -> c3(A__SEL(mark(x0), cons(cons(mark(z0), z1), x3)), MARK(x0))
   A__SEL(s(x0), cons(x1, cons(s(z0), x3))) -> c3(A__SEL(mark(x0), cons(s(mark(z0)), x3)), MARK(x0))
   A__SEL(s(x0), cons(x1, cons(0, x3))) -> c3(A__SEL(mark(x0), cons(0, x3)), MARK(x0))
   A__SEL(s(from(z0)), cons(x1, cons(x2, x3))) -> c3(A__SEL(a__from(mark(z0)), cons(mark(x2), x3)), MARK(from(z0)))
   A__SEL(s(sel(z0, z1)), cons(x1, cons(x2, x3))) -> c3(A__SEL(a__sel(mark(z0), mark(z1)), cons(mark(x2), x3)), MARK(sel(z0, z1)))
   A__SEL(s(s(z0)), cons(x1, cons(x2, x3))) -> c3(A__SEL(s(mark(z0)), cons(mark(x2), x3)), MARK(s(z0)))
   A__SEL(s(cons(z0, z1)), cons(x1, cons(x2, x3))) -> c3(MARK(cons(z0, z1)))
   A__SEL(s(0), cons(x1, cons(x2, x3))) -> c3(A__SEL(0, cons(mark(x2), x3)))
K tuples:none
Defined Rule Symbols:   a__from_1, a__sel_2, mark_1

Defined Pair Symbols:   A__FROM_1, A__SEL_2, MARK_1

Compound Symbols:   c_1, c2_1, c6_2, c9_1, c10_1, c3_2, c3_1, c4_2, c4_1, c7_2, c7_1, c8_2, c8_1


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

(89) CdtNarrowingProof (BOTH BOUNDS(ID, ID))
Use narrowing to replace A__SEL(s(from(z0)), cons(x1, x2)) -> c3(A__SEL(a__from(mark(z0)), mark(x2)), MARK(from(z0))) by 
   A__SEL(s(from(x0)), cons(x1, from(z0))) -> c3(A__SEL(a__from(mark(x0)), a__from(mark(z0))), MARK(from(x0)))
   A__SEL(s(from(x0)), cons(x1, sel(z0, z1))) -> c3(A__SEL(a__from(mark(x0)), a__sel(mark(z0), mark(z1))), MARK(from(x0)))
   A__SEL(s(from(x0)), cons(x1, cons(z0, z1))) -> c3(A__SEL(a__from(mark(x0)), cons(mark(z0), z1)), MARK(from(x0)))
   A__SEL(s(from(x0)), cons(x1, s(z0))) -> c3(A__SEL(a__from(mark(x0)), s(mark(z0))), MARK(from(x0)))
   A__SEL(s(from(x0)), cons(x1, 0)) -> c3(A__SEL(a__from(mark(x0)), 0), MARK(from(x0)))
   A__SEL(s(from(x0)), cons(x1, x2)) -> c3(A__SEL(cons(mark(mark(x0)), from(s(mark(x0)))), mark(x2)), MARK(from(x0)))
   A__SEL(s(from(x0)), cons(x1, x2)) -> c3(A__SEL(from(mark(x0)), mark(x2)), MARK(from(x0)))
   A__SEL(s(from(from(z0))), cons(x1, x2)) -> c3(A__SEL(a__from(a__from(mark(z0))), mark(x2)), MARK(from(from(z0))))
   A__SEL(s(from(sel(z0, z1))), cons(x1, x2)) -> c3(A__SEL(a__from(a__sel(mark(z0), mark(z1))), mark(x2)), MARK(from(sel(z0, z1))))
   A__SEL(s(from(cons(z0, z1))), cons(x1, x2)) -> c3(A__SEL(a__from(cons(mark(z0), z1)), mark(x2)), MARK(from(cons(z0, z1))))
   A__SEL(s(from(s(z0))), cons(x1, x2)) -> c3(A__SEL(a__from(s(mark(z0))), mark(x2)), MARK(from(s(z0))))
   A__SEL(s(from(0)), cons(x1, x2)) -> c3(A__SEL(a__from(0), mark(x2)), MARK(from(0)))
   A__SEL(s(from(x0)), cons(x1, x2)) -> c3(MARK(from(x0)))

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

(90)
Obligation:
Complexity Dependency Tuples Problem

Rules:
   a__from(z0) -> cons(mark(z0), from(s(z0)))
   a__from(z0) -> from(z0)
   a__sel(0, cons(z0, z1)) -> mark(z0)
   a__sel(s(z0), cons(z1, z2)) -> a__sel(mark(z0), mark(z2))
   a__sel(z0, z1) -> sel(z0, z1)
   mark(from(z0)) -> a__from(mark(z0))
   mark(sel(z0, z1)) -> a__sel(mark(z0), mark(z1))
   mark(cons(z0, z1)) -> cons(mark(z0), z1)
   mark(s(z0)) -> s(mark(z0))
   mark(0) -> 0
Tuples:
   A__FROM(z0) -> c(MARK(z0))
   A__SEL(0, cons(z0, z1)) -> c2(MARK(z0))
   MARK(from(z0)) -> c6(A__FROM(mark(z0)), MARK(z0))
   MARK(cons(z0, z1)) -> c9(MARK(z0))
   MARK(s(z0)) -> c10(MARK(z0))
   A__SEL(s(sel(z0, z1)), cons(x1, x2)) -> c3(A__SEL(a__sel(mark(z0), mark(z1)), mark(x2)), MARK(sel(z0, z1)))
   A__SEL(s(s(z0)), cons(x1, x2)) -> c3(A__SEL(s(mark(z0)), mark(x2)), MARK(s(z0)))
   A__SEL(s(x0), cons(x1, s(z0))) -> c3(MARK(x0))
   A__SEL(s(x0), cons(x1, 0)) -> c3(MARK(x0))
   A__SEL(s(cons(z0, z1)), cons(x1, x2)) -> c3(MARK(cons(z0, z1)))
   A__SEL(s(0), cons(x1, x2)) -> c3(A__SEL(0, mark(x2)))
   A__SEL(s(x0), cons(x1, from(z0))) -> c4(A__SEL(mark(x0), a__from(mark(z0))), MARK(from(z0)))
   A__SEL(s(x0), cons(x1, sel(z0, z1))) -> c4(A__SEL(mark(x0), a__sel(mark(z0), mark(z1))), MARK(sel(z0, z1)))
   A__SEL(s(x0), cons(x1, cons(z0, z1))) -> c4(A__SEL(mark(x0), cons(mark(z0), z1)), MARK(cons(z0, z1)))
   A__SEL(s(from(z0)), cons(x1, x2)) -> c4(A__SEL(a__from(mark(z0)), mark(x2)), MARK(x2))
   A__SEL(s(sel(z0, z1)), cons(x1, x2)) -> c4(A__SEL(a__sel(mark(z0), mark(z1)), mark(x2)), MARK(x2))
   A__SEL(s(s(z0)), cons(x1, x2)) -> c4(A__SEL(s(mark(z0)), mark(x2)), MARK(x2))
   A__SEL(s(0), cons(x1, x2)) -> c4(A__SEL(0, mark(x2)), MARK(x2))
   A__SEL(s(x0), cons(x1, s(z0))) -> c4(MARK(s(z0)))
   A__SEL(s(cons(z0, z1)), cons(x1, x2)) -> c4(MARK(x2))
   MARK(sel(x0, from(z0))) -> c7(A__SEL(mark(x0), a__from(mark(z0))), MARK(x0))
   MARK(sel(x0, sel(z0, z1))) -> c7(A__SEL(mark(x0), a__sel(mark(z0), mark(z1))), MARK(x0))
   MARK(sel(x0, cons(z0, z1))) -> c7(A__SEL(mark(x0), cons(mark(z0), z1)), MARK(x0))
   MARK(sel(from(z0), x1)) -> c7(A__SEL(a__from(mark(z0)), mark(x1)), MARK(from(z0)))
   MARK(sel(sel(z0, z1), x1)) -> c7(A__SEL(a__sel(mark(z0), mark(z1)), mark(x1)), MARK(sel(z0, z1)))
   MARK(sel(s(z0), x1)) -> c7(A__SEL(s(mark(z0)), mark(x1)), MARK(s(z0)))
   MARK(sel(x0, s(z0))) -> c7(MARK(x0))
   MARK(sel(x0, 0)) -> c7(MARK(x0))
   MARK(sel(cons(z0, z1), x1)) -> c7(MARK(cons(z0, z1)))
   MARK(sel(0, x1)) -> c7(A__SEL(0, mark(x1)))
   MARK(sel(x0, from(z0))) -> c8(A__SEL(mark(x0), a__from(mark(z0))), MARK(from(z0)))
   MARK(sel(x0, sel(z0, z1))) -> c8(A__SEL(mark(x0), a__sel(mark(z0), mark(z1))), MARK(sel(z0, z1)))
   MARK(sel(x0, cons(z0, z1))) -> c8(A__SEL(mark(x0), cons(mark(z0), z1)), MARK(cons(z0, z1)))
   MARK(sel(from(z0), x1)) -> c8(A__SEL(a__from(mark(z0)), mark(x1)), MARK(x1))
   MARK(sel(sel(z0, z1), x1)) -> c8(A__SEL(a__sel(mark(z0), mark(z1)), mark(x1)), MARK(x1))
   MARK(sel(s(z0), x1)) -> c8(A__SEL(s(mark(z0)), mark(x1)), MARK(x1))
   MARK(sel(0, x1)) -> c8(A__SEL(0, mark(x1)), MARK(x1))
   MARK(sel(x0, s(z0))) -> c8(MARK(s(z0)))
   MARK(sel(cons(z0, z1), x1)) -> c8(MARK(x1))
   A__SEL(s(x0), cons(x1, from(x2))) -> c3(A__SEL(mark(x0), cons(mark(mark(x2)), from(s(mark(x2))))), MARK(x0))
   A__SEL(s(x0), cons(x1, from(from(z0)))) -> c3(A__SEL(mark(x0), a__from(a__from(mark(z0)))), MARK(x0))
   A__SEL(s(x0), cons(x1, from(sel(z0, z1)))) -> c3(A__SEL(mark(x0), a__from(a__sel(mark(z0), mark(z1)))), MARK(x0))
   A__SEL(s(x0), cons(x1, from(cons(z0, z1)))) -> c3(A__SEL(mark(x0), a__from(cons(mark(z0), z1))), MARK(x0))
   A__SEL(s(x0), cons(x1, from(s(z0)))) -> c3(A__SEL(mark(x0), a__from(s(mark(z0)))), MARK(x0))
   A__SEL(s(x0), cons(x1, from(0))) -> c3(A__SEL(mark(x0), a__from(0)), MARK(x0))
   A__SEL(s(from(z0)), cons(x1, from(x2))) -> c3(A__SEL(a__from(mark(z0)), a__from(mark(x2))), MARK(from(z0)))
   A__SEL(s(sel(z0, z1)), cons(x1, from(x2))) -> c3(A__SEL(a__sel(mark(z0), mark(z1)), a__from(mark(x2))), MARK(sel(z0, z1)))
   A__SEL(s(s(z0)), cons(x1, from(x2))) -> c3(A__SEL(s(mark(z0)), a__from(mark(x2))), MARK(s(z0)))
   A__SEL(s(x0), cons(x1, from(x2))) -> c3(MARK(x0))
   A__SEL(s(cons(z0, z1)), cons(x1, from(x2))) -> c3(MARK(cons(z0, z1)))
   A__SEL(s(0), cons(x1, from(x2))) -> c3(A__SEL(0, a__from(mark(x2))))
   A__SEL(s(x0), cons(x1, sel(x2, from(z0)))) -> c3(A__SEL(mark(x0), a__sel(mark(x2), a__from(mark(z0)))), MARK(x0))
   A__SEL(s(x0), cons(x1, sel(x2, sel(z0, z1)))) -> c3(A__SEL(mark(x0), a__sel(mark(x2), a__sel(mark(z0), mark(z1)))), MARK(x0))
   A__SEL(s(x0), cons(x1, sel(x2, cons(z0, z1)))) -> c3(A__SEL(mark(x0), a__sel(mark(x2), cons(mark(z0), z1))), MARK(x0))
   A__SEL(s(x0), cons(x1, sel(x2, s(z0)))) -> c3(A__SEL(mark(x0), a__sel(mark(x2), s(mark(z0)))), MARK(x0))
   A__SEL(s(x0), cons(x1, sel(x2, 0))) -> c3(A__SEL(mark(x0), a__sel(mark(x2), 0)), MARK(x0))
   A__SEL(s(x0), cons(x1, sel(from(z0), x3))) -> c3(A__SEL(mark(x0), a__sel(a__from(mark(z0)), mark(x3))), MARK(x0))
   A__SEL(s(x0), cons(x1, sel(sel(z0, z1), x3))) -> c3(A__SEL(mark(x0), a__sel(a__sel(mark(z0), mark(z1)), mark(x3))), MARK(x0))
   A__SEL(s(x0), cons(x1, sel(cons(z0, z1), x3))) -> c3(A__SEL(mark(x0), a__sel(cons(mark(z0), z1), mark(x3))), MARK(x0))
   A__SEL(s(x0), cons(x1, sel(s(z0), x3))) -> c3(A__SEL(mark(x0), a__sel(s(mark(z0)), mark(x3))), MARK(x0))
   A__SEL(s(x0), cons(x1, sel(0, x3))) -> c3(A__SEL(mark(x0), a__sel(0, mark(x3))), MARK(x0))
   A__SEL(s(from(z0)), cons(x1, sel(x2, x3))) -> c3(A__SEL(a__from(mark(z0)), a__sel(mark(x2), mark(x3))), MARK(from(z0)))
   A__SEL(s(sel(z0, z1)), cons(x1, sel(x2, x3))) -> c3(A__SEL(a__sel(mark(z0), mark(z1)), a__sel(mark(x2), mark(x3))), MARK(sel(z0, z1)))
   A__SEL(s(s(z0)), cons(x1, sel(x2, x3))) -> c3(A__SEL(s(mark(z0)), a__sel(mark(x2), mark(x3))), MARK(s(z0)))
   A__SEL(s(x0), cons(x1, sel(x2, x3))) -> c3(MARK(x0))
   A__SEL(s(cons(z0, z1)), cons(x1, sel(x2, x3))) -> c3(MARK(cons(z0, z1)))
   A__SEL(s(0), cons(x1, sel(x2, x3))) -> c3(A__SEL(0, a__sel(mark(x2), mark(x3))))
   A__SEL(s(x0), cons(x1, cons(from(z0), x3))) -> c3(A__SEL(mark(x0), cons(a__from(mark(z0)), x3)), MARK(x0))
   A__SEL(s(x0), cons(x1, cons(sel(z0, z1), x3))) -> c3(A__SEL(mark(x0), cons(a__sel(mark(z0), mark(z1)), x3)), MARK(x0))
   A__SEL(s(x0), cons(x1, cons(cons(z0, z1), x3))) -> c3(A__SEL(mark(x0), cons(cons(mark(z0), z1), x3)), MARK(x0))
   A__SEL(s(x0), cons(x1, cons(s(z0), x3))) -> c3(A__SEL(mark(x0), cons(s(mark(z0)), x3)), MARK(x0))
   A__SEL(s(x0), cons(x1, cons(0, x3))) -> c3(A__SEL(mark(x0), cons(0, x3)), MARK(x0))
   A__SEL(s(from(z0)), cons(x1, cons(x2, x3))) -> c3(A__SEL(a__from(mark(z0)), cons(mark(x2), x3)), MARK(from(z0)))
   A__SEL(s(sel(z0, z1)), cons(x1, cons(x2, x3))) -> c3(A__SEL(a__sel(mark(z0), mark(z1)), cons(mark(x2), x3)), MARK(sel(z0, z1)))
   A__SEL(s(s(z0)), cons(x1, cons(x2, x3))) -> c3(A__SEL(s(mark(z0)), cons(mark(x2), x3)), MARK(s(z0)))
   A__SEL(s(cons(z0, z1)), cons(x1, cons(x2, x3))) -> c3(MARK(cons(z0, z1)))
   A__SEL(s(0), cons(x1, cons(x2, x3))) -> c3(A__SEL(0, cons(mark(x2), x3)))
   A__SEL(s(from(x0)), cons(x1, s(z0))) -> c3(A__SEL(a__from(mark(x0)), s(mark(z0))), MARK(from(x0)))
   A__SEL(s(from(x0)), cons(x1, 0)) -> c3(A__SEL(a__from(mark(x0)), 0), MARK(from(x0)))
   A__SEL(s(from(x0)), cons(x1, x2)) -> c3(A__SEL(cons(mark(mark(x0)), from(s(mark(x0)))), mark(x2)), MARK(from(x0)))
   A__SEL(s(from(x0)), cons(x1, x2)) -> c3(A__SEL(from(mark(x0)), mark(x2)), MARK(from(x0)))
   A__SEL(s(from(from(z0))), cons(x1, x2)) -> c3(A__SEL(a__from(a__from(mark(z0))), mark(x2)), MARK(from(from(z0))))
   A__SEL(s(from(sel(z0, z1))), cons(x1, x2)) -> c3(A__SEL(a__from(a__sel(mark(z0), mark(z1))), mark(x2)), MARK(from(sel(z0, z1))))
   A__SEL(s(from(cons(z0, z1))), cons(x1, x2)) -> c3(A__SEL(a__from(cons(mark(z0), z1)), mark(x2)), MARK(from(cons(z0, z1))))
   A__SEL(s(from(s(z0))), cons(x1, x2)) -> c3(A__SEL(a__from(s(mark(z0))), mark(x2)), MARK(from(s(z0))))
   A__SEL(s(from(0)), cons(x1, x2)) -> c3(A__SEL(a__from(0), mark(x2)), MARK(from(0)))
   A__SEL(s(from(x0)), cons(x1, x2)) -> c3(MARK(from(x0)))
S tuples:
   A__FROM(z0) -> c(MARK(z0))
   A__SEL(0, cons(z0, z1)) -> c2(MARK(z0))
   MARK(from(z0)) -> c6(A__FROM(mark(z0)), MARK(z0))
   MARK(cons(z0, z1)) -> c9(MARK(z0))
   MARK(s(z0)) -> c10(MARK(z0))
   A__SEL(s(sel(z0, z1)), cons(x1, x2)) -> c3(A__SEL(a__sel(mark(z0), mark(z1)), mark(x2)), MARK(sel(z0, z1)))
   A__SEL(s(s(z0)), cons(x1, x2)) -> c3(A__SEL(s(mark(z0)), mark(x2)), MARK(s(z0)))
   A__SEL(s(x0), cons(x1, s(z0))) -> c3(MARK(x0))
   A__SEL(s(x0), cons(x1, 0)) -> c3(MARK(x0))
   A__SEL(s(cons(z0, z1)), cons(x1, x2)) -> c3(MARK(cons(z0, z1)))
   A__SEL(s(0), cons(x1, x2)) -> c3(A__SEL(0, mark(x2)))
   A__SEL(s(x0), cons(x1, from(z0))) -> c4(A__SEL(mark(x0), a__from(mark(z0))), MARK(from(z0)))
   A__SEL(s(x0), cons(x1, sel(z0, z1))) -> c4(A__SEL(mark(x0), a__sel(mark(z0), mark(z1))), MARK(sel(z0, z1)))
   A__SEL(s(x0), cons(x1, cons(z0, z1))) -> c4(A__SEL(mark(x0), cons(mark(z0), z1)), MARK(cons(z0, z1)))
   A__SEL(s(from(z0)), cons(x1, x2)) -> c4(A__SEL(a__from(mark(z0)), mark(x2)), MARK(x2))
   A__SEL(s(sel(z0, z1)), cons(x1, x2)) -> c4(A__SEL(a__sel(mark(z0), mark(z1)), mark(x2)), MARK(x2))
   A__SEL(s(s(z0)), cons(x1, x2)) -> c4(A__SEL(s(mark(z0)), mark(x2)), MARK(x2))
   A__SEL(s(0), cons(x1, x2)) -> c4(A__SEL(0, mark(x2)), MARK(x2))
   A__SEL(s(x0), cons(x1, s(z0))) -> c4(MARK(s(z0)))
   A__SEL(s(cons(z0, z1)), cons(x1, x2)) -> c4(MARK(x2))
   MARK(sel(x0, from(z0))) -> c7(A__SEL(mark(x0), a__from(mark(z0))), MARK(x0))
   MARK(sel(x0, sel(z0, z1))) -> c7(A__SEL(mark(x0), a__sel(mark(z0), mark(z1))), MARK(x0))
   MARK(sel(x0, cons(z0, z1))) -> c7(A__SEL(mark(x0), cons(mark(z0), z1)), MARK(x0))
   MARK(sel(from(z0), x1)) -> c7(A__SEL(a__from(mark(z0)), mark(x1)), MARK(from(z0)))
   MARK(sel(sel(z0, z1), x1)) -> c7(A__SEL(a__sel(mark(z0), mark(z1)), mark(x1)), MARK(sel(z0, z1)))
   MARK(sel(s(z0), x1)) -> c7(A__SEL(s(mark(z0)), mark(x1)), MARK(s(z0)))
   MARK(sel(x0, s(z0))) -> c7(MARK(x0))
   MARK(sel(x0, 0)) -> c7(MARK(x0))
   MARK(sel(cons(z0, z1), x1)) -> c7(MARK(cons(z0, z1)))
   MARK(sel(0, x1)) -> c7(A__SEL(0, mark(x1)))
   MARK(sel(x0, from(z0))) -> c8(A__SEL(mark(x0), a__from(mark(z0))), MARK(from(z0)))
   MARK(sel(x0, sel(z0, z1))) -> c8(A__SEL(mark(x0), a__sel(mark(z0), mark(z1))), MARK(sel(z0, z1)))
   MARK(sel(x0, cons(z0, z1))) -> c8(A__SEL(mark(x0), cons(mark(z0), z1)), MARK(cons(z0, z1)))
   MARK(sel(from(z0), x1)) -> c8(A__SEL(a__from(mark(z0)), mark(x1)), MARK(x1))
   MARK(sel(sel(z0, z1), x1)) -> c8(A__SEL(a__sel(mark(z0), mark(z1)), mark(x1)), MARK(x1))
   MARK(sel(s(z0), x1)) -> c8(A__SEL(s(mark(z0)), mark(x1)), MARK(x1))
   MARK(sel(0, x1)) -> c8(A__SEL(0, mark(x1)), MARK(x1))
   MARK(sel(x0, s(z0))) -> c8(MARK(s(z0)))
   MARK(sel(cons(z0, z1), x1)) -> c8(MARK(x1))
   A__SEL(s(x0), cons(x1, from(x2))) -> c3(A__SEL(mark(x0), cons(mark(mark(x2)), from(s(mark(x2))))), MARK(x0))
   A__SEL(s(x0), cons(x1, from(from(z0)))) -> c3(A__SEL(mark(x0), a__from(a__from(mark(z0)))), MARK(x0))
   A__SEL(s(x0), cons(x1, from(sel(z0, z1)))) -> c3(A__SEL(mark(x0), a__from(a__sel(mark(z0), mark(z1)))), MARK(x0))
   A__SEL(s(x0), cons(x1, from(cons(z0, z1)))) -> c3(A__SEL(mark(x0), a__from(cons(mark(z0), z1))), MARK(x0))
   A__SEL(s(x0), cons(x1, from(s(z0)))) -> c3(A__SEL(mark(x0), a__from(s(mark(z0)))), MARK(x0))
   A__SEL(s(x0), cons(x1, from(0))) -> c3(A__SEL(mark(x0), a__from(0)), MARK(x0))
   A__SEL(s(from(z0)), cons(x1, from(x2))) -> c3(A__SEL(a__from(mark(z0)), a__from(mark(x2))), MARK(from(z0)))
   A__SEL(s(sel(z0, z1)), cons(x1, from(x2))) -> c3(A__SEL(a__sel(mark(z0), mark(z1)), a__from(mark(x2))), MARK(sel(z0, z1)))
   A__SEL(s(s(z0)), cons(x1, from(x2))) -> c3(A__SEL(s(mark(z0)), a__from(mark(x2))), MARK(s(z0)))
   A__SEL(s(x0), cons(x1, from(x2))) -> c3(MARK(x0))
   A__SEL(s(cons(z0, z1)), cons(x1, from(x2))) -> c3(MARK(cons(z0, z1)))
   A__SEL(s(0), cons(x1, from(x2))) -> c3(A__SEL(0, a__from(mark(x2))))
   A__SEL(s(x0), cons(x1, sel(x2, from(z0)))) -> c3(A__SEL(mark(x0), a__sel(mark(x2), a__from(mark(z0)))), MARK(x0))
   A__SEL(s(x0), cons(x1, sel(x2, sel(z0, z1)))) -> c3(A__SEL(mark(x0), a__sel(mark(x2), a__sel(mark(z0), mark(z1)))), MARK(x0))
   A__SEL(s(x0), cons(x1, sel(x2, cons(z0, z1)))) -> c3(A__SEL(mark(x0), a__sel(mark(x2), cons(mark(z0), z1))), MARK(x0))
   A__SEL(s(x0), cons(x1, sel(x2, s(z0)))) -> c3(A__SEL(mark(x0), a__sel(mark(x2), s(mark(z0)))), MARK(x0))
   A__SEL(s(x0), cons(x1, sel(x2, 0))) -> c3(A__SEL(mark(x0), a__sel(mark(x2), 0)), MARK(x0))
   A__SEL(s(x0), cons(x1, sel(from(z0), x3))) -> c3(A__SEL(mark(x0), a__sel(a__from(mark(z0)), mark(x3))), MARK(x0))
   A__SEL(s(x0), cons(x1, sel(sel(z0, z1), x3))) -> c3(A__SEL(mark(x0), a__sel(a__sel(mark(z0), mark(z1)), mark(x3))), MARK(x0))
   A__SEL(s(x0), cons(x1, sel(cons(z0, z1), x3))) -> c3(A__SEL(mark(x0), a__sel(cons(mark(z0), z1), mark(x3))), MARK(x0))
   A__SEL(s(x0), cons(x1, sel(s(z0), x3))) -> c3(A__SEL(mark(x0), a__sel(s(mark(z0)), mark(x3))), MARK(x0))
   A__SEL(s(x0), cons(x1, sel(0, x3))) -> c3(A__SEL(mark(x0), a__sel(0, mark(x3))), MARK(x0))
   A__SEL(s(from(z0)), cons(x1, sel(x2, x3))) -> c3(A__SEL(a__from(mark(z0)), a__sel(mark(x2), mark(x3))), MARK(from(z0)))
   A__SEL(s(sel(z0, z1)), cons(x1, sel(x2, x3))) -> c3(A__SEL(a__sel(mark(z0), mark(z1)), a__sel(mark(x2), mark(x3))), MARK(sel(z0, z1)))
   A__SEL(s(s(z0)), cons(x1, sel(x2, x3))) -> c3(A__SEL(s(mark(z0)), a__sel(mark(x2), mark(x3))), MARK(s(z0)))
   A__SEL(s(x0), cons(x1, sel(x2, x3))) -> c3(MARK(x0))
   A__SEL(s(cons(z0, z1)), cons(x1, sel(x2, x3))) -> c3(MARK(cons(z0, z1)))
   A__SEL(s(0), cons(x1, sel(x2, x3))) -> c3(A__SEL(0, a__sel(mark(x2), mark(x3))))
   A__SEL(s(x0), cons(x1, cons(from(z0), x3))) -> c3(A__SEL(mark(x0), cons(a__from(mark(z0)), x3)), MARK(x0))
   A__SEL(s(x0), cons(x1, cons(sel(z0, z1), x3))) -> c3(A__SEL(mark(x0), cons(a__sel(mark(z0), mark(z1)), x3)), MARK(x0))
   A__SEL(s(x0), cons(x1, cons(cons(z0, z1), x3))) -> c3(A__SEL(mark(x0), cons(cons(mark(z0), z1), x3)), MARK(x0))
   A__SEL(s(x0), cons(x1, cons(s(z0), x3))) -> c3(A__SEL(mark(x0), cons(s(mark(z0)), x3)), MARK(x0))
   A__SEL(s(x0), cons(x1, cons(0, x3))) -> c3(A__SEL(mark(x0), cons(0, x3)), MARK(x0))
   A__SEL(s(from(z0)), cons(x1, cons(x2, x3))) -> c3(A__SEL(a__from(mark(z0)), cons(mark(x2), x3)), MARK(from(z0)))
   A__SEL(s(sel(z0, z1)), cons(x1, cons(x2, x3))) -> c3(A__SEL(a__sel(mark(z0), mark(z1)), cons(mark(x2), x3)), MARK(sel(z0, z1)))
   A__SEL(s(s(z0)), cons(x1, cons(x2, x3))) -> c3(A__SEL(s(mark(z0)), cons(mark(x2), x3)), MARK(s(z0)))
   A__SEL(s(cons(z0, z1)), cons(x1, cons(x2, x3))) -> c3(MARK(cons(z0, z1)))
   A__SEL(s(0), cons(x1, cons(x2, x3))) -> c3(A__SEL(0, cons(mark(x2), x3)))
   A__SEL(s(from(x0)), cons(x1, s(z0))) -> c3(A__SEL(a__from(mark(x0)), s(mark(z0))), MARK(from(x0)))
   A__SEL(s(from(x0)), cons(x1, 0)) -> c3(A__SEL(a__from(mark(x0)), 0), MARK(from(x0)))
   A__SEL(s(from(x0)), cons(x1, x2)) -> c3(A__SEL(cons(mark(mark(x0)), from(s(mark(x0)))), mark(x2)), MARK(from(x0)))
   A__SEL(s(from(x0)), cons(x1, x2)) -> c3(A__SEL(from(mark(x0)), mark(x2)), MARK(from(x0)))
   A__SEL(s(from(from(z0))), cons(x1, x2)) -> c3(A__SEL(a__from(a__from(mark(z0))), mark(x2)), MARK(from(from(z0))))
   A__SEL(s(from(sel(z0, z1))), cons(x1, x2)) -> c3(A__SEL(a__from(a__sel(mark(z0), mark(z1))), mark(x2)), MARK(from(sel(z0, z1))))
   A__SEL(s(from(cons(z0, z1))), cons(x1, x2)) -> c3(A__SEL(a__from(cons(mark(z0), z1)), mark(x2)), MARK(from(cons(z0, z1))))
   A__SEL(s(from(s(z0))), cons(x1, x2)) -> c3(A__SEL(a__from(s(mark(z0))), mark(x2)), MARK(from(s(z0))))
   A__SEL(s(from(0)), cons(x1, x2)) -> c3(A__SEL(a__from(0), mark(x2)), MARK(from(0)))
   A__SEL(s(from(x0)), cons(x1, x2)) -> c3(MARK(from(x0)))
K tuples:none
Defined Rule Symbols:   a__from_1, a__sel_2, mark_1

Defined Pair Symbols:   A__FROM_1, A__SEL_2, MARK_1

Compound Symbols:   c_1, c2_1, c6_2, c9_1, c10_1, c3_2, c3_1, c4_2, c4_1, c7_2, c7_1, c8_2, c8_1


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

(91) CdtRhsSimplificationProcessorProof (BOTH BOUNDS(ID, ID))
Removed 4 trailing tuple parts
----------------------------------------

(92)
Obligation:
Complexity Dependency Tuples Problem

Rules:
   a__from(z0) -> cons(mark(z0), from(s(z0)))
   a__from(z0) -> from(z0)
   a__sel(0, cons(z0, z1)) -> mark(z0)
   a__sel(s(z0), cons(z1, z2)) -> a__sel(mark(z0), mark(z2))
   a__sel(z0, z1) -> sel(z0, z1)
   mark(from(z0)) -> a__from(mark(z0))
   mark(sel(z0, z1)) -> a__sel(mark(z0), mark(z1))
   mark(cons(z0, z1)) -> cons(mark(z0), z1)
   mark(s(z0)) -> s(mark(z0))
   mark(0) -> 0
Tuples:
   A__FROM(z0) -> c(MARK(z0))
   A__SEL(0, cons(z0, z1)) -> c2(MARK(z0))
   MARK(from(z0)) -> c6(A__FROM(mark(z0)), MARK(z0))
   MARK(cons(z0, z1)) -> c9(MARK(z0))
   MARK(s(z0)) -> c10(MARK(z0))
   A__SEL(s(sel(z0, z1)), cons(x1, x2)) -> c3(A__SEL(a__sel(mark(z0), mark(z1)), mark(x2)), MARK(sel(z0, z1)))
   A__SEL(s(s(z0)), cons(x1, x2)) -> c3(A__SEL(s(mark(z0)), mark(x2)), MARK(s(z0)))
   A__SEL(s(x0), cons(x1, s(z0))) -> c3(MARK(x0))
   A__SEL(s(x0), cons(x1, 0)) -> c3(MARK(x0))
   A__SEL(s(cons(z0, z1)), cons(x1, x2)) -> c3(MARK(cons(z0, z1)))
   A__SEL(s(0), cons(x1, x2)) -> c3(A__SEL(0, mark(x2)))
   A__SEL(s(x0), cons(x1, from(z0))) -> c4(A__SEL(mark(x0), a__from(mark(z0))), MARK(from(z0)))
   A__SEL(s(x0), cons(x1, sel(z0, z1))) -> c4(A__SEL(mark(x0), a__sel(mark(z0), mark(z1))), MARK(sel(z0, z1)))
   A__SEL(s(x0), cons(x1, cons(z0, z1))) -> c4(A__SEL(mark(x0), cons(mark(z0), z1)), MARK(cons(z0, z1)))
   A__SEL(s(from(z0)), cons(x1, x2)) -> c4(A__SEL(a__from(mark(z0)), mark(x2)), MARK(x2))
   A__SEL(s(sel(z0, z1)), cons(x1, x2)) -> c4(A__SEL(a__sel(mark(z0), mark(z1)), mark(x2)), MARK(x2))
   A__SEL(s(s(z0)), cons(x1, x2)) -> c4(A__SEL(s(mark(z0)), mark(x2)), MARK(x2))
   A__SEL(s(0), cons(x1, x2)) -> c4(A__SEL(0, mark(x2)), MARK(x2))
   A__SEL(s(x0), cons(x1, s(z0))) -> c4(MARK(s(z0)))
   A__SEL(s(cons(z0, z1)), cons(x1, x2)) -> c4(MARK(x2))
   MARK(sel(x0, from(z0))) -> c7(A__SEL(mark(x0), a__from(mark(z0))), MARK(x0))
   MARK(sel(x0, sel(z0, z1))) -> c7(A__SEL(mark(x0), a__sel(mark(z0), mark(z1))), MARK(x0))
   MARK(sel(x0, cons(z0, z1))) -> c7(A__SEL(mark(x0), cons(mark(z0), z1)), MARK(x0))
   MARK(sel(from(z0), x1)) -> c7(A__SEL(a__from(mark(z0)), mark(x1)), MARK(from(z0)))
   MARK(sel(sel(z0, z1), x1)) -> c7(A__SEL(a__sel(mark(z0), mark(z1)), mark(x1)), MARK(sel(z0, z1)))
   MARK(sel(s(z0), x1)) -> c7(A__SEL(s(mark(z0)), mark(x1)), MARK(s(z0)))
   MARK(sel(x0, s(z0))) -> c7(MARK(x0))
   MARK(sel(x0, 0)) -> c7(MARK(x0))
   MARK(sel(cons(z0, z1), x1)) -> c7(MARK(cons(z0, z1)))
   MARK(sel(0, x1)) -> c7(A__SEL(0, mark(x1)))
   MARK(sel(x0, from(z0))) -> c8(A__SEL(mark(x0), a__from(mark(z0))), MARK(from(z0)))
   MARK(sel(x0, sel(z0, z1))) -> c8(A__SEL(mark(x0), a__sel(mark(z0), mark(z1))), MARK(sel(z0, z1)))
   MARK(sel(x0, cons(z0, z1))) -> c8(A__SEL(mark(x0), cons(mark(z0), z1)), MARK(cons(z0, z1)))
   MARK(sel(from(z0), x1)) -> c8(A__SEL(a__from(mark(z0)), mark(x1)), MARK(x1))
   MARK(sel(sel(z0, z1), x1)) -> c8(A__SEL(a__sel(mark(z0), mark(z1)), mark(x1)), MARK(x1))
   MARK(sel(s(z0), x1)) -> c8(A__SEL(s(mark(z0)), mark(x1)), MARK(x1))
   MARK(sel(0, x1)) -> c8(A__SEL(0, mark(x1)), MARK(x1))
   MARK(sel(x0, s(z0))) -> c8(MARK(s(z0)))
   MARK(sel(cons(z0, z1), x1)) -> c8(MARK(x1))
   A__SEL(s(x0), cons(x1, from(x2))) -> c3(A__SEL(mark(x0), cons(mark(mark(x2)), from(s(mark(x2))))), MARK(x0))
   A__SEL(s(x0), cons(x1, from(from(z0)))) -> c3(A__SEL(mark(x0), a__from(a__from(mark(z0)))), MARK(x0))
   A__SEL(s(x0), cons(x1, from(sel(z0, z1)))) -> c3(A__SEL(mark(x0), a__from(a__sel(mark(z0), mark(z1)))), MARK(x0))
   A__SEL(s(x0), cons(x1, from(cons(z0, z1)))) -> c3(A__SEL(mark(x0), a__from(cons(mark(z0), z1))), MARK(x0))
   A__SEL(s(x0), cons(x1, from(s(z0)))) -> c3(A__SEL(mark(x0), a__from(s(mark(z0)))), MARK(x0))
   A__SEL(s(x0), cons(x1, from(0))) -> c3(A__SEL(mark(x0), a__from(0)), MARK(x0))
   A__SEL(s(from(z0)), cons(x1, from(x2))) -> c3(A__SEL(a__from(mark(z0)), a__from(mark(x2))), MARK(from(z0)))
   A__SEL(s(sel(z0, z1)), cons(x1, from(x2))) -> c3(A__SEL(a__sel(mark(z0), mark(z1)), a__from(mark(x2))), MARK(sel(z0, z1)))
   A__SEL(s(s(z0)), cons(x1, from(x2))) -> c3(A__SEL(s(mark(z0)), a__from(mark(x2))), MARK(s(z0)))
   A__SEL(s(x0), cons(x1, from(x2))) -> c3(MARK(x0))
   A__SEL(s(cons(z0, z1)), cons(x1, from(x2))) -> c3(MARK(cons(z0, z1)))
   A__SEL(s(0), cons(x1, from(x2))) -> c3(A__SEL(0, a__from(mark(x2))))
   A__SEL(s(x0), cons(x1, sel(x2, from(z0)))) -> c3(A__SEL(mark(x0), a__sel(mark(x2), a__from(mark(z0)))), MARK(x0))
   A__SEL(s(x0), cons(x1, sel(x2, sel(z0, z1)))) -> c3(A__SEL(mark(x0), a__sel(mark(x2), a__sel(mark(z0), mark(z1)))), MARK(x0))
   A__SEL(s(x0), cons(x1, sel(x2, cons(z0, z1)))) -> c3(A__SEL(mark(x0), a__sel(mark(x2), cons(mark(z0), z1))), MARK(x0))
   A__SEL(s(x0), cons(x1, sel(x2, s(z0)))) -> c3(A__SEL(mark(x0), a__sel(mark(x2), s(mark(z0)))), MARK(x0))
   A__SEL(s(x0), cons(x1, sel(x2, 0))) -> c3(A__SEL(mark(x0), a__sel(mark(x2), 0)), MARK(x0))
   A__SEL(s(x0), cons(x1, sel(from(z0), x3))) -> c3(A__SEL(mark(x0), a__sel(a__from(mark(z0)), mark(x3))), MARK(x0))
   A__SEL(s(x0), cons(x1, sel(sel(z0, z1), x3))) -> c3(A__SEL(mark(x0), a__sel(a__sel(mark(z0), mark(z1)), mark(x3))), MARK(x0))
   A__SEL(s(x0), cons(x1, sel(cons(z0, z1), x3))) -> c3(A__SEL(mark(x0), a__sel(cons(mark(z0), z1), mark(x3))), MARK(x0))
   A__SEL(s(x0), cons(x1, sel(s(z0), x3))) -> c3(A__SEL(mark(x0), a__sel(s(mark(z0)), mark(x3))), MARK(x0))
   A__SEL(s(x0), cons(x1, sel(0, x3))) -> c3(A__SEL(mark(x0), a__sel(0, mark(x3))), MARK(x0))
   A__SEL(s(from(z0)), cons(x1, sel(x2, x3))) -> c3(A__SEL(a__from(mark(z0)), a__sel(mark(x2), mark(x3))), MARK(from(z0)))
   A__SEL(s(sel(z0, z1)), cons(x1, sel(x2, x3))) -> c3(A__SEL(a__sel(mark(z0), mark(z1)), a__sel(mark(x2), mark(x3))), MARK(sel(z0, z1)))
   A__SEL(s(s(z0)), cons(x1, sel(x2, x3))) -> c3(A__SEL(s(mark(z0)), a__sel(mark(x2), mark(x3))), MARK(s(z0)))
   A__SEL(s(x0), cons(x1, sel(x2, x3))) -> c3(MARK(x0))
   A__SEL(s(cons(z0, z1)), cons(x1, sel(x2, x3))) -> c3(MARK(cons(z0, z1)))
   A__SEL(s(0), cons(x1, sel(x2, x3))) -> c3(A__SEL(0, a__sel(mark(x2), mark(x3))))
   A__SEL(s(x0), cons(x1, cons(from(z0), x3))) -> c3(A__SEL(mark(x0), cons(a__from(mark(z0)), x3)), MARK(x0))
   A__SEL(s(x0), cons(x1, cons(sel(z0, z1), x3))) -> c3(A__SEL(mark(x0), cons(a__sel(mark(z0), mark(z1)), x3)), MARK(x0))
   A__SEL(s(x0), cons(x1, cons(cons(z0, z1), x3))) -> c3(A__SEL(mark(x0), cons(cons(mark(z0), z1), x3)), MARK(x0))
   A__SEL(s(x0), cons(x1, cons(s(z0), x3))) -> c3(A__SEL(mark(x0), cons(s(mark(z0)), x3)), MARK(x0))
   A__SEL(s(x0), cons(x1, cons(0, x3))) -> c3(A__SEL(mark(x0), cons(0, x3)), MARK(x0))
   A__SEL(s(from(z0)), cons(x1, cons(x2, x3))) -> c3(A__SEL(a__from(mark(z0)), cons(mark(x2), x3)), MARK(from(z0)))
   A__SEL(s(sel(z0, z1)), cons(x1, cons(x2, x3))) -> c3(A__SEL(a__sel(mark(z0), mark(z1)), cons(mark(x2), x3)), MARK(sel(z0, z1)))
   A__SEL(s(s(z0)), cons(x1, cons(x2, x3))) -> c3(A__SEL(s(mark(z0)), cons(mark(x2), x3)), MARK(s(z0)))
   A__SEL(s(cons(z0, z1)), cons(x1, cons(x2, x3))) -> c3(MARK(cons(z0, z1)))
   A__SEL(s(0), cons(x1, cons(x2, x3))) -> c3(A__SEL(0, cons(mark(x2), x3)))
   A__SEL(s(from(from(z0))), cons(x1, x2)) -> c3(A__SEL(a__from(a__from(mark(z0))), mark(x2)), MARK(from(from(z0))))
   A__SEL(s(from(sel(z0, z1))), cons(x1, x2)) -> c3(A__SEL(a__from(a__sel(mark(z0), mark(z1))), mark(x2)), MARK(from(sel(z0, z1))))
   A__SEL(s(from(cons(z0, z1))), cons(x1, x2)) -> c3(A__SEL(a__from(cons(mark(z0), z1)), mark(x2)), MARK(from(cons(z0, z1))))
   A__SEL(s(from(s(z0))), cons(x1, x2)) -> c3(A__SEL(a__from(s(mark(z0))), mark(x2)), MARK(from(s(z0))))
   A__SEL(s(from(0)), cons(x1, x2)) -> c3(A__SEL(a__from(0), mark(x2)), MARK(from(0)))
   A__SEL(s(from(x0)), cons(x1, x2)) -> c3(MARK(from(x0)))
   A__SEL(s(from(x0)), cons(x1, s(z0))) -> c3(MARK(from(x0)))
   A__SEL(s(from(x0)), cons(x1, 0)) -> c3(MARK(from(x0)))
S tuples:
   A__FROM(z0) -> c(MARK(z0))
   A__SEL(0, cons(z0, z1)) -> c2(MARK(z0))
   MARK(from(z0)) -> c6(A__FROM(mark(z0)), MARK(z0))
   MARK(cons(z0, z1)) -> c9(MARK(z0))
   MARK(s(z0)) -> c10(MARK(z0))
   A__SEL(s(sel(z0, z1)), cons(x1, x2)) -> c3(A__SEL(a__sel(mark(z0), mark(z1)), mark(x2)), MARK(sel(z0, z1)))
   A__SEL(s(s(z0)), cons(x1, x2)) -> c3(A__SEL(s(mark(z0)), mark(x2)), MARK(s(z0)))
   A__SEL(s(x0), cons(x1, s(z0))) -> c3(MARK(x0))
   A__SEL(s(x0), cons(x1, 0)) -> c3(MARK(x0))
   A__SEL(s(cons(z0, z1)), cons(x1, x2)) -> c3(MARK(cons(z0, z1)))
   A__SEL(s(0), cons(x1, x2)) -> c3(A__SEL(0, mark(x2)))
   A__SEL(s(x0), cons(x1, from(z0))) -> c4(A__SEL(mark(x0), a__from(mark(z0))), MARK(from(z0)))
   A__SEL(s(x0), cons(x1, sel(z0, z1))) -> c4(A__SEL(mark(x0), a__sel(mark(z0), mark(z1))), MARK(sel(z0, z1)))
   A__SEL(s(x0), cons(x1, cons(z0, z1))) -> c4(A__SEL(mark(x0), cons(mark(z0), z1)), MARK(cons(z0, z1)))
   A__SEL(s(from(z0)), cons(x1, x2)) -> c4(A__SEL(a__from(mark(z0)), mark(x2)), MARK(x2))
   A__SEL(s(sel(z0, z1)), cons(x1, x2)) -> c4(A__SEL(a__sel(mark(z0), mark(z1)), mark(x2)), MARK(x2))
   A__SEL(s(s(z0)), cons(x1, x2)) -> c4(A__SEL(s(mark(z0)), mark(x2)), MARK(x2))
   A__SEL(s(0), cons(x1, x2)) -> c4(A__SEL(0, mark(x2)), MARK(x2))
   A__SEL(s(x0), cons(x1, s(z0))) -> c4(MARK(s(z0)))
   A__SEL(s(cons(z0, z1)), cons(x1, x2)) -> c4(MARK(x2))
   MARK(sel(x0, from(z0))) -> c7(A__SEL(mark(x0), a__from(mark(z0))), MARK(x0))
   MARK(sel(x0, sel(z0, z1))) -> c7(A__SEL(mark(x0), a__sel(mark(z0), mark(z1))), MARK(x0))
   MARK(sel(x0, cons(z0, z1))) -> c7(A__SEL(mark(x0), cons(mark(z0), z1)), MARK(x0))
   MARK(sel(from(z0), x1)) -> c7(A__SEL(a__from(mark(z0)), mark(x1)), MARK(from(z0)))
   MARK(sel(sel(z0, z1), x1)) -> c7(A__SEL(a__sel(mark(z0), mark(z1)), mark(x1)), MARK(sel(z0, z1)))
   MARK(sel(s(z0), x1)) -> c7(A__SEL(s(mark(z0)), mark(x1)), MARK(s(z0)))
   MARK(sel(x0, s(z0))) -> c7(MARK(x0))
   MARK(sel(x0, 0)) -> c7(MARK(x0))
   MARK(sel(cons(z0, z1), x1)) -> c7(MARK(cons(z0, z1)))
   MARK(sel(0, x1)) -> c7(A__SEL(0, mark(x1)))
   MARK(sel(x0, from(z0))) -> c8(A__SEL(mark(x0), a__from(mark(z0))), MARK(from(z0)))
   MARK(sel(x0, sel(z0, z1))) -> c8(A__SEL(mark(x0), a__sel(mark(z0), mark(z1))), MARK(sel(z0, z1)))
   MARK(sel(x0, cons(z0, z1))) -> c8(A__SEL(mark(x0), cons(mark(z0), z1)), MARK(cons(z0, z1)))
   MARK(sel(from(z0), x1)) -> c8(A__SEL(a__from(mark(z0)), mark(x1)), MARK(x1))
   MARK(sel(sel(z0, z1), x1)) -> c8(A__SEL(a__sel(mark(z0), mark(z1)), mark(x1)), MARK(x1))
   MARK(sel(s(z0), x1)) -> c8(A__SEL(s(mark(z0)), mark(x1)), MARK(x1))
   MARK(sel(0, x1)) -> c8(A__SEL(0, mark(x1)), MARK(x1))
   MARK(sel(x0, s(z0))) -> c8(MARK(s(z0)))
   MARK(sel(cons(z0, z1), x1)) -> c8(MARK(x1))
   A__SEL(s(x0), cons(x1, from(x2))) -> c3(A__SEL(mark(x0), cons(mark(mark(x2)), from(s(mark(x2))))), MARK(x0))
   A__SEL(s(x0), cons(x1, from(from(z0)))) -> c3(A__SEL(mark(x0), a__from(a__from(mark(z0)))), MARK(x0))
   A__SEL(s(x0), cons(x1, from(sel(z0, z1)))) -> c3(A__SEL(mark(x0), a__from(a__sel(mark(z0), mark(z1)))), MARK(x0))
   A__SEL(s(x0), cons(x1, from(cons(z0, z1)))) -> c3(A__SEL(mark(x0), a__from(cons(mark(z0), z1))), MARK(x0))
   A__SEL(s(x0), cons(x1, from(s(z0)))) -> c3(A__SEL(mark(x0), a__from(s(mark(z0)))), MARK(x0))
   A__SEL(s(x0), cons(x1, from(0))) -> c3(A__SEL(mark(x0), a__from(0)), MARK(x0))
   A__SEL(s(from(z0)), cons(x1, from(x2))) -> c3(A__SEL(a__from(mark(z0)), a__from(mark(x2))), MARK(from(z0)))
   A__SEL(s(sel(z0, z1)), cons(x1, from(x2))) -> c3(A__SEL(a__sel(mark(z0), mark(z1)), a__from(mark(x2))), MARK(sel(z0, z1)))
   A__SEL(s(s(z0)), cons(x1, from(x2))) -> c3(A__SEL(s(mark(z0)), a__from(mark(x2))), MARK(s(z0)))
   A__SEL(s(x0), cons(x1, from(x2))) -> c3(MARK(x0))
   A__SEL(s(cons(z0, z1)), cons(x1, from(x2))) -> c3(MARK(cons(z0, z1)))
   A__SEL(s(0), cons(x1, from(x2))) -> c3(A__SEL(0, a__from(mark(x2))))
   A__SEL(s(x0), cons(x1, sel(x2, from(z0)))) -> c3(A__SEL(mark(x0), a__sel(mark(x2), a__from(mark(z0)))), MARK(x0))
   A__SEL(s(x0), cons(x1, sel(x2, sel(z0, z1)))) -> c3(A__SEL(mark(x0), a__sel(mark(x2), a__sel(mark(z0), mark(z1)))), MARK(x0))
   A__SEL(s(x0), cons(x1, sel(x2, cons(z0, z1)))) -> c3(A__SEL(mark(x0), a__sel(mark(x2), cons(mark(z0), z1))), MARK(x0))
   A__SEL(s(x0), cons(x1, sel(x2, s(z0)))) -> c3(A__SEL(mark(x0), a__sel(mark(x2), s(mark(z0)))), MARK(x0))
   A__SEL(s(x0), cons(x1, sel(x2, 0))) -> c3(A__SEL(mark(x0), a__sel(mark(x2), 0)), MARK(x0))
   A__SEL(s(x0), cons(x1, sel(from(z0), x3))) -> c3(A__SEL(mark(x0), a__sel(a__from(mark(z0)), mark(x3))), MARK(x0))
   A__SEL(s(x0), cons(x1, sel(sel(z0, z1), x3))) -> c3(A__SEL(mark(x0), a__sel(a__sel(mark(z0), mark(z1)), mark(x3))), MARK(x0))
   A__SEL(s(x0), cons(x1, sel(cons(z0, z1), x3))) -> c3(A__SEL(mark(x0), a__sel(cons(mark(z0), z1), mark(x3))), MARK(x0))
   A__SEL(s(x0), cons(x1, sel(s(z0), x3))) -> c3(A__SEL(mark(x0), a__sel(s(mark(z0)), mark(x3))), MARK(x0))
   A__SEL(s(x0), cons(x1, sel(0, x3))) -> c3(A__SEL(mark(x0), a__sel(0, mark(x3))), MARK(x0))
   A__SEL(s(from(z0)), cons(x1, sel(x2, x3))) -> c3(A__SEL(a__from(mark(z0)), a__sel(mark(x2), mark(x3))), MARK(from(z0)))
   A__SEL(s(sel(z0, z1)), cons(x1, sel(x2, x3))) -> c3(A__SEL(a__sel(mark(z0), mark(z1)), a__sel(mark(x2), mark(x3))), MARK(sel(z0, z1)))
   A__SEL(s(s(z0)), cons(x1, sel(x2, x3))) -> c3(A__SEL(s(mark(z0)), a__sel(mark(x2), mark(x3))), MARK(s(z0)))
   A__SEL(s(x0), cons(x1, sel(x2, x3))) -> c3(MARK(x0))
   A__SEL(s(cons(z0, z1)), cons(x1, sel(x2, x3))) -> c3(MARK(cons(z0, z1)))
   A__SEL(s(0), cons(x1, sel(x2, x3))) -> c3(A__SEL(0, a__sel(mark(x2), mark(x3))))
   A__SEL(s(x0), cons(x1, cons(from(z0), x3))) -> c3(A__SEL(mark(x0), cons(a__from(mark(z0)), x3)), MARK(x0))
   A__SEL(s(x0), cons(x1, cons(sel(z0, z1), x3))) -> c3(A__SEL(mark(x0), cons(a__sel(mark(z0), mark(z1)), x3)), MARK(x0))
   A__SEL(s(x0), cons(x1, cons(cons(z0, z1), x3))) -> c3(A__SEL(mark(x0), cons(cons(mark(z0), z1), x3)), MARK(x0))
   A__SEL(s(x0), cons(x1, cons(s(z0), x3))) -> c3(A__SEL(mark(x0), cons(s(mark(z0)), x3)), MARK(x0))
   A__SEL(s(x0), cons(x1, cons(0, x3))) -> c3(A__SEL(mark(x0), cons(0, x3)), MARK(x0))
   A__SEL(s(from(z0)), cons(x1, cons(x2, x3))) -> c3(A__SEL(a__from(mark(z0)), cons(mark(x2), x3)), MARK(from(z0)))
   A__SEL(s(sel(z0, z1)), cons(x1, cons(x2, x3))) -> c3(A__SEL(a__sel(mark(z0), mark(z1)), cons(mark(x2), x3)), MARK(sel(z0, z1)))
   A__SEL(s(s(z0)), cons(x1, cons(x2, x3))) -> c3(A__SEL(s(mark(z0)), cons(mark(x2), x3)), MARK(s(z0)))
   A__SEL(s(cons(z0, z1)), cons(x1, cons(x2, x3))) -> c3(MARK(cons(z0, z1)))
   A__SEL(s(0), cons(x1, cons(x2, x3))) -> c3(A__SEL(0, cons(mark(x2), x3)))
   A__SEL(s(from(from(z0))), cons(x1, x2)) -> c3(A__SEL(a__from(a__from(mark(z0))), mark(x2)), MARK(from(from(z0))))
   A__SEL(s(from(sel(z0, z1))), cons(x1, x2)) -> c3(A__SEL(a__from(a__sel(mark(z0), mark(z1))), mark(x2)), MARK(from(sel(z0, z1))))
   A__SEL(s(from(cons(z0, z1))), cons(x1, x2)) -> c3(A__SEL(a__from(cons(mark(z0), z1)), mark(x2)), MARK(from(cons(z0, z1))))
   A__SEL(s(from(s(z0))), cons(x1, x2)) -> c3(A__SEL(a__from(s(mark(z0))), mark(x2)), MARK(from(s(z0))))
   A__SEL(s(from(0)), cons(x1, x2)) -> c3(A__SEL(a__from(0), mark(x2)), MARK(from(0)))
   A__SEL(s(from(x0)), cons(x1, x2)) -> c3(MARK(from(x0)))
   A__SEL(s(from(x0)), cons(x1, s(z0))) -> c3(MARK(from(x0)))
   A__SEL(s(from(x0)), cons(x1, 0)) -> c3(MARK(from(x0)))
K tuples:none
Defined Rule Symbols:   a__from_1, a__sel_2, mark_1

Defined Pair Symbols:   A__FROM_1, A__SEL_2, MARK_1

Compound Symbols:   c_1, c2_1, c6_2, c9_1, c10_1, c3_2, c3_1, c4_2, c4_1, c7_2, c7_1, c8_2, c8_1


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

(93) CdtNarrowingProof (BOTH BOUNDS(ID, ID))
Use narrowing to replace A__SEL(s(sel(z0, z1)), cons(x1, x2)) -> c3(A__SEL(a__sel(mark(z0), mark(z1)), mark(x2)), MARK(sel(z0, z1))) by 
   A__SEL(s(sel(x0, x1)), cons(x2, from(z0))) -> c3(A__SEL(a__sel(mark(x0), mark(x1)), a__from(mark(z0))), MARK(sel(x0, x1)))
   A__SEL(s(sel(x0, x1)), cons(x2, sel(z0, z1))) -> c3(A__SEL(a__sel(mark(x0), mark(x1)), a__sel(mark(z0), mark(z1))), MARK(sel(x0, x1)))
   A__SEL(s(sel(x0, x1)), cons(x2, cons(z0, z1))) -> c3(A__SEL(a__sel(mark(x0), mark(x1)), cons(mark(z0), z1)), MARK(sel(x0, x1)))
   A__SEL(s(sel(x0, x1)), cons(x2, s(z0))) -> c3(A__SEL(a__sel(mark(x0), mark(x1)), s(mark(z0))), MARK(sel(x0, x1)))
   A__SEL(s(sel(x0, x1)), cons(x2, 0)) -> c3(A__SEL(a__sel(mark(x0), mark(x1)), 0), MARK(sel(x0, x1)))
   A__SEL(s(sel(x0, x1)), cons(x2, x3)) -> c3(A__SEL(sel(mark(x0), mark(x1)), mark(x3)), MARK(sel(x0, x1)))
   A__SEL(s(sel(x0, from(z0))), cons(x2, x3)) -> c3(A__SEL(a__sel(mark(x0), a__from(mark(z0))), mark(x3)), MARK(sel(x0, from(z0))))
   A__SEL(s(sel(x0, sel(z0, z1))), cons(x2, x3)) -> c3(A__SEL(a__sel(mark(x0), a__sel(mark(z0), mark(z1))), mark(x3)), MARK(sel(x0, sel(z0, z1))))
   A__SEL(s(sel(x0, cons(z0, z1))), cons(x2, x3)) -> c3(A__SEL(a__sel(mark(x0), cons(mark(z0), z1)), mark(x3)), MARK(sel(x0, cons(z0, z1))))
   A__SEL(s(sel(x0, s(z0))), cons(x2, x3)) -> c3(A__SEL(a__sel(mark(x0), s(mark(z0))), mark(x3)), MARK(sel(x0, s(z0))))
   A__SEL(s(sel(x0, 0)), cons(x2, x3)) -> c3(A__SEL(a__sel(mark(x0), 0), mark(x3)), MARK(sel(x0, 0)))
   A__SEL(s(sel(from(z0), x1)), cons(x2, x3)) -> c3(A__SEL(a__sel(a__from(mark(z0)), mark(x1)), mark(x3)), MARK(sel(from(z0), x1)))
   A__SEL(s(sel(sel(z0, z1), x1)), cons(x2, x3)) -> c3(A__SEL(a__sel(a__sel(mark(z0), mark(z1)), mark(x1)), mark(x3)), MARK(sel(sel(z0, z1), x1)))
   A__SEL(s(sel(cons(z0, z1), x1)), cons(x2, x3)) -> c3(A__SEL(a__sel(cons(mark(z0), z1), mark(x1)), mark(x3)), MARK(sel(cons(z0, z1), x1)))
   A__SEL(s(sel(s(z0), x1)), cons(x2, x3)) -> c3(A__SEL(a__sel(s(mark(z0)), mark(x1)), mark(x3)), MARK(sel(s(z0), x1)))
   A__SEL(s(sel(0, x1)), cons(x2, x3)) -> c3(A__SEL(a__sel(0, mark(x1)), mark(x3)), MARK(sel(0, x1)))

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

(94)
Obligation:
Complexity Dependency Tuples Problem

Rules:
   a__from(z0) -> cons(mark(z0), from(s(z0)))
   a__from(z0) -> from(z0)
   a__sel(0, cons(z0, z1)) -> mark(z0)
   a__sel(s(z0), cons(z1, z2)) -> a__sel(mark(z0), mark(z2))
   a__sel(z0, z1) -> sel(z0, z1)
   mark(from(z0)) -> a__from(mark(z0))
   mark(sel(z0, z1)) -> a__sel(mark(z0), mark(z1))
   mark(cons(z0, z1)) -> cons(mark(z0), z1)
   mark(s(z0)) -> s(mark(z0))
   mark(0) -> 0
Tuples:
   A__FROM(z0) -> c(MARK(z0))
   A__SEL(0, cons(z0, z1)) -> c2(MARK(z0))
   MARK(from(z0)) -> c6(A__FROM(mark(z0)), MARK(z0))
   MARK(cons(z0, z1)) -> c9(MARK(z0))
   MARK(s(z0)) -> c10(MARK(z0))
   A__SEL(s(s(z0)), cons(x1, x2)) -> c3(A__SEL(s(mark(z0)), mark(x2)), MARK(s(z0)))
   A__SEL(s(x0), cons(x1, s(z0))) -> c3(MARK(x0))
   A__SEL(s(x0), cons(x1, 0)) -> c3(MARK(x0))
   A__SEL(s(cons(z0, z1)), cons(x1, x2)) -> c3(MARK(cons(z0, z1)))
   A__SEL(s(0), cons(x1, x2)) -> c3(A__SEL(0, mark(x2)))
   A__SEL(s(x0), cons(x1, from(z0))) -> c4(A__SEL(mark(x0), a__from(mark(z0))), MARK(from(z0)))
   A__SEL(s(x0), cons(x1, sel(z0, z1))) -> c4(A__SEL(mark(x0), a__sel(mark(z0), mark(z1))), MARK(sel(z0, z1)))
   A__SEL(s(x0), cons(x1, cons(z0, z1))) -> c4(A__SEL(mark(x0), cons(mark(z0), z1)), MARK(cons(z0, z1)))
   A__SEL(s(from(z0)), cons(x1, x2)) -> c4(A__SEL(a__from(mark(z0)), mark(x2)), MARK(x2))
   A__SEL(s(sel(z0, z1)), cons(x1, x2)) -> c4(A__SEL(a__sel(mark(z0), mark(z1)), mark(x2)), MARK(x2))
   A__SEL(s(s(z0)), cons(x1, x2)) -> c4(A__SEL(s(mark(z0)), mark(x2)), MARK(x2))
   A__SEL(s(0), cons(x1, x2)) -> c4(A__SEL(0, mark(x2)), MARK(x2))
   A__SEL(s(x0), cons(x1, s(z0))) -> c4(MARK(s(z0)))
   A__SEL(s(cons(z0, z1)), cons(x1, x2)) -> c4(MARK(x2))
   MARK(sel(x0, from(z0))) -> c7(A__SEL(mark(x0), a__from(mark(z0))), MARK(x0))
   MARK(sel(x0, sel(z0, z1))) -> c7(A__SEL(mark(x0), a__sel(mark(z0), mark(z1))), MARK(x0))
   MARK(sel(x0, cons(z0, z1))) -> c7(A__SEL(mark(x0), cons(mark(z0), z1)), MARK(x0))
   MARK(sel(from(z0), x1)) -> c7(A__SEL(a__from(mark(z0)), mark(x1)), MARK(from(z0)))
   MARK(sel(sel(z0, z1), x1)) -> c7(A__SEL(a__sel(mark(z0), mark(z1)), mark(x1)), MARK(sel(z0, z1)))
   MARK(sel(s(z0), x1)) -> c7(A__SEL(s(mark(z0)), mark(x1)), MARK(s(z0)))
   MARK(sel(x0, s(z0))) -> c7(MARK(x0))
   MARK(sel(x0, 0)) -> c7(MARK(x0))
   MARK(sel(cons(z0, z1), x1)) -> c7(MARK(cons(z0, z1)))
   MARK(sel(0, x1)) -> c7(A__SEL(0, mark(x1)))
   MARK(sel(x0, from(z0))) -> c8(A__SEL(mark(x0), a__from(mark(z0))), MARK(from(z0)))
   MARK(sel(x0, sel(z0, z1))) -> c8(A__SEL(mark(x0), a__sel(mark(z0), mark(z1))), MARK(sel(z0, z1)))
   MARK(sel(x0, cons(z0, z1))) -> c8(A__SEL(mark(x0), cons(mark(z0), z1)), MARK(cons(z0, z1)))
   MARK(sel(from(z0), x1)) -> c8(A__SEL(a__from(mark(z0)), mark(x1)), MARK(x1))
   MARK(sel(sel(z0, z1), x1)) -> c8(A__SEL(a__sel(mark(z0), mark(z1)), mark(x1)), MARK(x1))
   MARK(sel(s(z0), x1)) -> c8(A__SEL(s(mark(z0)), mark(x1)), MARK(x1))
   MARK(sel(0, x1)) -> c8(A__SEL(0, mark(x1)), MARK(x1))
   MARK(sel(x0, s(z0))) -> c8(MARK(s(z0)))
   MARK(sel(cons(z0, z1), x1)) -> c8(MARK(x1))
   A__SEL(s(x0), cons(x1, from(x2))) -> c3(A__SEL(mark(x0), cons(mark(mark(x2)), from(s(mark(x2))))), MARK(x0))
   A__SEL(s(x0), cons(x1, from(from(z0)))) -> c3(A__SEL(mark(x0), a__from(a__from(mark(z0)))), MARK(x0))
   A__SEL(s(x0), cons(x1, from(sel(z0, z1)))) -> c3(A__SEL(mark(x0), a__from(a__sel(mark(z0), mark(z1)))), MARK(x0))
   A__SEL(s(x0), cons(x1, from(cons(z0, z1)))) -> c3(A__SEL(mark(x0), a__from(cons(mark(z0), z1))), MARK(x0))
   A__SEL(s(x0), cons(x1, from(s(z0)))) -> c3(A__SEL(mark(x0), a__from(s(mark(z0)))), MARK(x0))
   A__SEL(s(x0), cons(x1, from(0))) -> c3(A__SEL(mark(x0), a__from(0)), MARK(x0))
   A__SEL(s(from(z0)), cons(x1, from(x2))) -> c3(A__SEL(a__from(mark(z0)), a__from(mark(x2))), MARK(from(z0)))
   A__SEL(s(sel(z0, z1)), cons(x1, from(x2))) -> c3(A__SEL(a__sel(mark(z0), mark(z1)), a__from(mark(x2))), MARK(sel(z0, z1)))
   A__SEL(s(s(z0)), cons(x1, from(x2))) -> c3(A__SEL(s(mark(z0)), a__from(mark(x2))), MARK(s(z0)))
   A__SEL(s(x0), cons(x1, from(x2))) -> c3(MARK(x0))
   A__SEL(s(cons(z0, z1)), cons(x1, from(x2))) -> c3(MARK(cons(z0, z1)))
   A__SEL(s(0), cons(x1, from(x2))) -> c3(A__SEL(0, a__from(mark(x2))))
   A__SEL(s(x0), cons(x1, sel(x2, from(z0)))) -> c3(A__SEL(mark(x0), a__sel(mark(x2), a__from(mark(z0)))), MARK(x0))
   A__SEL(s(x0), cons(x1, sel(x2, sel(z0, z1)))) -> c3(A__SEL(mark(x0), a__sel(mark(x2), a__sel(mark(z0), mark(z1)))), MARK(x0))
   A__SEL(s(x0), cons(x1, sel(x2, cons(z0, z1)))) -> c3(A__SEL(mark(x0), a__sel(mark(x2), cons(mark(z0), z1))), MARK(x0))
   A__SEL(s(x0), cons(x1, sel(x2, s(z0)))) -> c3(A__SEL(mark(x0), a__sel(mark(x2), s(mark(z0)))), MARK(x0))
   A__SEL(s(x0), cons(x1, sel(x2, 0))) -> c3(A__SEL(mark(x0), a__sel(mark(x2), 0)), MARK(x0))
   A__SEL(s(x0), cons(x1, sel(from(z0), x3))) -> c3(A__SEL(mark(x0), a__sel(a__from(mark(z0)), mark(x3))), MARK(x0))
   A__SEL(s(x0), cons(x1, sel(sel(z0, z1), x3))) -> c3(A__SEL(mark(x0), a__sel(a__sel(mark(z0), mark(z1)), mark(x3))), MARK(x0))
   A__SEL(s(x0), cons(x1, sel(cons(z0, z1), x3))) -> c3(A__SEL(mark(x0), a__sel(cons(mark(z0), z1), mark(x3))), MARK(x0))
   A__SEL(s(x0), cons(x1, sel(s(z0), x3))) -> c3(A__SEL(mark(x0), a__sel(s(mark(z0)), mark(x3))), MARK(x0))
   A__SEL(s(x0), cons(x1, sel(0, x3))) -> c3(A__SEL(mark(x0), a__sel(0, mark(x3))), MARK(x0))
   A__SEL(s(from(z0)), cons(x1, sel(x2, x3))) -> c3(A__SEL(a__from(mark(z0)), a__sel(mark(x2), mark(x3))), MARK(from(z0)))
   A__SEL(s(sel(z0, z1)), cons(x1, sel(x2, x3))) -> c3(A__SEL(a__sel(mark(z0), mark(z1)), a__sel(mark(x2), mark(x3))), MARK(sel(z0, z1)))
   A__SEL(s(s(z0)), cons(x1, sel(x2, x3))) -> c3(A__SEL(s(mark(z0)), a__sel(mark(x2), mark(x3))), MARK(s(z0)))
   A__SEL(s(x0), cons(x1, sel(x2, x3))) -> c3(MARK(x0))
   A__SEL(s(cons(z0, z1)), cons(x1, sel(x2, x3))) -> c3(MARK(cons(z0, z1)))
   A__SEL(s(0), cons(x1, sel(x2, x3))) -> c3(A__SEL(0, a__sel(mark(x2), mark(x3))))
   A__SEL(s(x0), cons(x1, cons(from(z0), x3))) -> c3(A__SEL(mark(x0), cons(a__from(mark(z0)), x3)), MARK(x0))
   A__SEL(s(x0), cons(x1, cons(sel(z0, z1), x3))) -> c3(A__SEL(mark(x0), cons(a__sel(mark(z0), mark(z1)), x3)), MARK(x0))
   A__SEL(s(x0), cons(x1, cons(cons(z0, z1), x3))) -> c3(A__SEL(mark(x0), cons(cons(mark(z0), z1), x3)), MARK(x0))
   A__SEL(s(x0), cons(x1, cons(s(z0), x3))) -> c3(A__SEL(mark(x0), cons(s(mark(z0)), x3)), MARK(x0))
   A__SEL(s(x0), cons(x1, cons(0, x3))) -> c3(A__SEL(mark(x0), cons(0, x3)), MARK(x0))
   A__SEL(s(from(z0)), cons(x1, cons(x2, x3))) -> c3(A__SEL(a__from(mark(z0)), cons(mark(x2), x3)), MARK(from(z0)))
   A__SEL(s(sel(z0, z1)), cons(x1, cons(x2, x3))) -> c3(A__SEL(a__sel(mark(z0), mark(z1)), cons(mark(x2), x3)), MARK(sel(z0, z1)))
   A__SEL(s(s(z0)), cons(x1, cons(x2, x3))) -> c3(A__SEL(s(mark(z0)), cons(mark(x2), x3)), MARK(s(z0)))
   A__SEL(s(cons(z0, z1)), cons(x1, cons(x2, x3))) -> c3(MARK(cons(z0, z1)))
   A__SEL(s(0), cons(x1, cons(x2, x3))) -> c3(A__SEL(0, cons(mark(x2), x3)))
   A__SEL(s(from(from(z0))), cons(x1, x2)) -> c3(A__SEL(a__from(a__from(mark(z0))), mark(x2)), MARK(from(from(z0))))
   A__SEL(s(from(sel(z0, z1))), cons(x1, x2)) -> c3(A__SEL(a__from(a__sel(mark(z0), mark(z1))), mark(x2)), MARK(from(sel(z0, z1))))
   A__SEL(s(from(cons(z0, z1))), cons(x1, x2)) -> c3(A__SEL(a__from(cons(mark(z0), z1)), mark(x2)), MARK(from(cons(z0, z1))))
   A__SEL(s(from(s(z0))), cons(x1, x2)) -> c3(A__SEL(a__from(s(mark(z0))), mark(x2)), MARK(from(s(z0))))
   A__SEL(s(from(0)), cons(x1, x2)) -> c3(A__SEL(a__from(0), mark(x2)), MARK(from(0)))
   A__SEL(s(from(x0)), cons(x1, x2)) -> c3(MARK(from(x0)))
   A__SEL(s(from(x0)), cons(x1, s(z0))) -> c3(MARK(from(x0)))
   A__SEL(s(from(x0)), cons(x1, 0)) -> c3(MARK(from(x0)))
   A__SEL(s(sel(x0, x1)), cons(x2, s(z0))) -> c3(A__SEL(a__sel(mark(x0), mark(x1)), s(mark(z0))), MARK(sel(x0, x1)))
   A__SEL(s(sel(x0, x1)), cons(x2, 0)) -> c3(A__SEL(a__sel(mark(x0), mark(x1)), 0), MARK(sel(x0, x1)))
   A__SEL(s(sel(x0, x1)), cons(x2, x3)) -> c3(A__SEL(sel(mark(x0), mark(x1)), mark(x3)), MARK(sel(x0, x1)))
   A__SEL(s(sel(x0, from(z0))), cons(x2, x3)) -> c3(A__SEL(a__sel(mark(x0), a__from(mark(z0))), mark(x3)), MARK(sel(x0, from(z0))))
   A__SEL(s(sel(x0, sel(z0, z1))), cons(x2, x3)) -> c3(A__SEL(a__sel(mark(x0), a__sel(mark(z0), mark(z1))), mark(x3)), MARK(sel(x0, sel(z0, z1))))
   A__SEL(s(sel(x0, cons(z0, z1))), cons(x2, x3)) -> c3(A__SEL(a__sel(mark(x0), cons(mark(z0), z1)), mark(x3)), MARK(sel(x0, cons(z0, z1))))
   A__SEL(s(sel(x0, s(z0))), cons(x2, x3)) -> c3(A__SEL(a__sel(mark(x0), s(mark(z0))), mark(x3)), MARK(sel(x0, s(z0))))
   A__SEL(s(sel(x0, 0)), cons(x2, x3)) -> c3(A__SEL(a__sel(mark(x0), 0), mark(x3)), MARK(sel(x0, 0)))
   A__SEL(s(sel(from(z0), x1)), cons(x2, x3)) -> c3(A__SEL(a__sel(a__from(mark(z0)), mark(x1)), mark(x3)), MARK(sel(from(z0), x1)))
   A__SEL(s(sel(sel(z0, z1), x1)), cons(x2, x3)) -> c3(A__SEL(a__sel(a__sel(mark(z0), mark(z1)), mark(x1)), mark(x3)), MARK(sel(sel(z0, z1), x1)))
   A__SEL(s(sel(cons(z0, z1), x1)), cons(x2, x3)) -> c3(A__SEL(a__sel(cons(mark(z0), z1), mark(x1)), mark(x3)), MARK(sel(cons(z0, z1), x1)))
   A__SEL(s(sel(s(z0), x1)), cons(x2, x3)) -> c3(A__SEL(a__sel(s(mark(z0)), mark(x1)), mark(x3)), MARK(sel(s(z0), x1)))
   A__SEL(s(sel(0, x1)), cons(x2, x3)) -> c3(A__SEL(a__sel(0, mark(x1)), mark(x3)), MARK(sel(0, x1)))
S tuples:
   A__FROM(z0) -> c(MARK(z0))
   A__SEL(0, cons(z0, z1)) -> c2(MARK(z0))
   MARK(from(z0)) -> c6(A__FROM(mark(z0)), MARK(z0))
   MARK(cons(z0, z1)) -> c9(MARK(z0))
   MARK(s(z0)) -> c10(MARK(z0))
   A__SEL(s(s(z0)), cons(x1, x2)) -> c3(A__SEL(s(mark(z0)), mark(x2)), MARK(s(z0)))
   A__SEL(s(x0), cons(x1, s(z0))) -> c3(MARK(x0))
   A__SEL(s(x0), cons(x1, 0)) -> c3(MARK(x0))
   A__SEL(s(cons(z0, z1)), cons(x1, x2)) -> c3(MARK(cons(z0, z1)))
   A__SEL(s(0), cons(x1, x2)) -> c3(A__SEL(0, mark(x2)))
   A__SEL(s(x0), cons(x1, from(z0))) -> c4(A__SEL(mark(x0), a__from(mark(z0))), MARK(from(z0)))
   A__SEL(s(x0), cons(x1, sel(z0, z1))) -> c4(A__SEL(mark(x0), a__sel(mark(z0), mark(z1))), MARK(sel(z0, z1)))
   A__SEL(s(x0), cons(x1, cons(z0, z1))) -> c4(A__SEL(mark(x0), cons(mark(z0), z1)), MARK(cons(z0, z1)))
   A__SEL(s(from(z0)), cons(x1, x2)) -> c4(A__SEL(a__from(mark(z0)), mark(x2)), MARK(x2))
   A__SEL(s(sel(z0, z1)), cons(x1, x2)) -> c4(A__SEL(a__sel(mark(z0), mark(z1)), mark(x2)), MARK(x2))
   A__SEL(s(s(z0)), cons(x1, x2)) -> c4(A__SEL(s(mark(z0)), mark(x2)), MARK(x2))
   A__SEL(s(0), cons(x1, x2)) -> c4(A__SEL(0, mark(x2)), MARK(x2))
   A__SEL(s(x0), cons(x1, s(z0))) -> c4(MARK(s(z0)))
   A__SEL(s(cons(z0, z1)), cons(x1, x2)) -> c4(MARK(x2))
   MARK(sel(x0, from(z0))) -> c7(A__SEL(mark(x0), a__from(mark(z0))), MARK(x0))
   MARK(sel(x0, sel(z0, z1))) -> c7(A__SEL(mark(x0), a__sel(mark(z0), mark(z1))), MARK(x0))
   MARK(sel(x0, cons(z0, z1))) -> c7(A__SEL(mark(x0), cons(mark(z0), z1)), MARK(x0))
   MARK(sel(from(z0), x1)) -> c7(A__SEL(a__from(mark(z0)), mark(x1)), MARK(from(z0)))
   MARK(sel(sel(z0, z1), x1)) -> c7(A__SEL(a__sel(mark(z0), mark(z1)), mark(x1)), MARK(sel(z0, z1)))
   MARK(sel(s(z0), x1)) -> c7(A__SEL(s(mark(z0)), mark(x1)), MARK(s(z0)))
   MARK(sel(x0, s(z0))) -> c7(MARK(x0))
   MARK(sel(x0, 0)) -> c7(MARK(x0))
   MARK(sel(cons(z0, z1), x1)) -> c7(MARK(cons(z0, z1)))
   MARK(sel(0, x1)) -> c7(A__SEL(0, mark(x1)))
   MARK(sel(x0, from(z0))) -> c8(A__SEL(mark(x0), a__from(mark(z0))), MARK(from(z0)))
   MARK(sel(x0, sel(z0, z1))) -> c8(A__SEL(mark(x0), a__sel(mark(z0), mark(z1))), MARK(sel(z0, z1)))
   MARK(sel(x0, cons(z0, z1))) -> c8(A__SEL(mark(x0), cons(mark(z0), z1)), MARK(cons(z0, z1)))
   MARK(sel(from(z0), x1)) -> c8(A__SEL(a__from(mark(z0)), mark(x1)), MARK(x1))
   MARK(sel(sel(z0, z1), x1)) -> c8(A__SEL(a__sel(mark(z0), mark(z1)), mark(x1)), MARK(x1))
   MARK(sel(s(z0), x1)) -> c8(A__SEL(s(mark(z0)), mark(x1)), MARK(x1))
   MARK(sel(0, x1)) -> c8(A__SEL(0, mark(x1)), MARK(x1))
   MARK(sel(x0, s(z0))) -> c8(MARK(s(z0)))
   MARK(sel(cons(z0, z1), x1)) -> c8(MARK(x1))
   A__SEL(s(x0), cons(x1, from(x2))) -> c3(A__SEL(mark(x0), cons(mark(mark(x2)), from(s(mark(x2))))), MARK(x0))
   A__SEL(s(x0), cons(x1, from(from(z0)))) -> c3(A__SEL(mark(x0), a__from(a__from(mark(z0)))), MARK(x0))
   A__SEL(s(x0), cons(x1, from(sel(z0, z1)))) -> c3(A__SEL(mark(x0), a__from(a__sel(mark(z0), mark(z1)))), MARK(x0))
   A__SEL(s(x0), cons(x1, from(cons(z0, z1)))) -> c3(A__SEL(mark(x0), a__from(cons(mark(z0), z1))), MARK(x0))
   A__SEL(s(x0), cons(x1, from(s(z0)))) -> c3(A__SEL(mark(x0), a__from(s(mark(z0)))), MARK(x0))
   A__SEL(s(x0), cons(x1, from(0))) -> c3(A__SEL(mark(x0), a__from(0)), MARK(x0))
   A__SEL(s(from(z0)), cons(x1, from(x2))) -> c3(A__SEL(a__from(mark(z0)), a__from(mark(x2))), MARK(from(z0)))
   A__SEL(s(sel(z0, z1)), cons(x1, from(x2))) -> c3(A__SEL(a__sel(mark(z0), mark(z1)), a__from(mark(x2))), MARK(sel(z0, z1)))
   A__SEL(s(s(z0)), cons(x1, from(x2))) -> c3(A__SEL(s(mark(z0)), a__from(mark(x2))), MARK(s(z0)))
   A__SEL(s(x0), cons(x1, from(x2))) -> c3(MARK(x0))
   A__SEL(s(cons(z0, z1)), cons(x1, from(x2))) -> c3(MARK(cons(z0, z1)))
   A__SEL(s(0), cons(x1, from(x2))) -> c3(A__SEL(0, a__from(mark(x2))))
   A__SEL(s(x0), cons(x1, sel(x2, from(z0)))) -> c3(A__SEL(mark(x0), a__sel(mark(x2), a__from(mark(z0)))), MARK(x0))
   A__SEL(s(x0), cons(x1, sel(x2, sel(z0, z1)))) -> c3(A__SEL(mark(x0), a__sel(mark(x2), a__sel(mark(z0), mark(z1)))), MARK(x0))
   A__SEL(s(x0), cons(x1, sel(x2, cons(z0, z1)))) -> c3(A__SEL(mark(x0), a__sel(mark(x2), cons(mark(z0), z1))), MARK(x0))
   A__SEL(s(x0), cons(x1, sel(x2, s(z0)))) -> c3(A__SEL(mark(x0), a__sel(mark(x2), s(mark(z0)))), MARK(x0))
   A__SEL(s(x0), cons(x1, sel(x2, 0))) -> c3(A__SEL(mark(x0), a__sel(mark(x2), 0)), MARK(x0))
   A__SEL(s(x0), cons(x1, sel(from(z0), x3))) -> c3(A__SEL(mark(x0), a__sel(a__from(mark(z0)), mark(x3))), MARK(x0))
   A__SEL(s(x0), cons(x1, sel(sel(z0, z1), x3))) -> c3(A__SEL(mark(x0), a__sel(a__sel(mark(z0), mark(z1)), mark(x3))), MARK(x0))
   A__SEL(s(x0), cons(x1, sel(cons(z0, z1), x3))) -> c3(A__SEL(mark(x0), a__sel(cons(mark(z0), z1), mark(x3))), MARK(x0))
   A__SEL(s(x0), cons(x1, sel(s(z0), x3))) -> c3(A__SEL(mark(x0), a__sel(s(mark(z0)), mark(x3))), MARK(x0))
   A__SEL(s(x0), cons(x1, sel(0, x3))) -> c3(A__SEL(mark(x0), a__sel(0, mark(x3))), MARK(x0))
   A__SEL(s(from(z0)), cons(x1, sel(x2, x3))) -> c3(A__SEL(a__from(mark(z0)), a__sel(mark(x2), mark(x3))), MARK(from(z0)))
   A__SEL(s(sel(z0, z1)), cons(x1, sel(x2, x3))) -> c3(A__SEL(a__sel(mark(z0), mark(z1)), a__sel(mark(x2), mark(x3))), MARK(sel(z0, z1)))
   A__SEL(s(s(z0)), cons(x1, sel(x2, x3))) -> c3(A__SEL(s(mark(z0)), a__sel(mark(x2), mark(x3))), MARK(s(z0)))
   A__SEL(s(x0), cons(x1, sel(x2, x3))) -> c3(MARK(x0))
   A__SEL(s(cons(z0, z1)), cons(x1, sel(x2, x3))) -> c3(MARK(cons(z0, z1)))
   A__SEL(s(0), cons(x1, sel(x2, x3))) -> c3(A__SEL(0, a__sel(mark(x2), mark(x3))))
   A__SEL(s(x0), cons(x1, cons(from(z0), x3))) -> c3(A__SEL(mark(x0), cons(a__from(mark(z0)), x3)), MARK(x0))
   A__SEL(s(x0), cons(x1, cons(sel(z0, z1), x3))) -> c3(A__SEL(mark(x0), cons(a__sel(mark(z0), mark(z1)), x3)), MARK(x0))
   A__SEL(s(x0), cons(x1, cons(cons(z0, z1), x3))) -> c3(A__SEL(mark(x0), cons(cons(mark(z0), z1), x3)), MARK(x0))
   A__SEL(s(x0), cons(x1, cons(s(z0), x3))) -> c3(A__SEL(mark(x0), cons(s(mark(z0)), x3)), MARK(x0))
   A__SEL(s(x0), cons(x1, cons(0, x3))) -> c3(A__SEL(mark(x0), cons(0, x3)), MARK(x0))
   A__SEL(s(from(z0)), cons(x1, cons(x2, x3))) -> c3(A__SEL(a__from(mark(z0)), cons(mark(x2), x3)), MARK(from(z0)))
   A__SEL(s(sel(z0, z1)), cons(x1, cons(x2, x3))) -> c3(A__SEL(a__sel(mark(z0), mark(z1)), cons(mark(x2), x3)), MARK(sel(z0, z1)))
   A__SEL(s(s(z0)), cons(x1, cons(x2, x3))) -> c3(A__SEL(s(mark(z0)), cons(mark(x2), x3)), MARK(s(z0)))
   A__SEL(s(cons(z0, z1)), cons(x1, cons(x2, x3))) -> c3(MARK(cons(z0, z1)))
   A__SEL(s(0), cons(x1, cons(x2, x3))) -> c3(A__SEL(0, cons(mark(x2), x3)))
   A__SEL(s(from(from(z0))), cons(x1, x2)) -> c3(A__SEL(a__from(a__from(mark(z0))), mark(x2)), MARK(from(from(z0))))
   A__SEL(s(from(sel(z0, z1))), cons(x1, x2)) -> c3(A__SEL(a__from(a__sel(mark(z0), mark(z1))), mark(x2)), MARK(from(sel(z0, z1))))
   A__SEL(s(from(cons(z0, z1))), cons(x1, x2)) -> c3(A__SEL(a__from(cons(mark(z0), z1)), mark(x2)), MARK(from(cons(z0, z1))))
   A__SEL(s(from(s(z0))), cons(x1, x2)) -> c3(A__SEL(a__from(s(mark(z0))), mark(x2)), MARK(from(s(z0))))
   A__SEL(s(from(0)), cons(x1, x2)) -> c3(A__SEL(a__from(0), mark(x2)), MARK(from(0)))
   A__SEL(s(from(x0)), cons(x1, x2)) -> c3(MARK(from(x0)))
   A__SEL(s(from(x0)), cons(x1, s(z0))) -> c3(MARK(from(x0)))
   A__SEL(s(from(x0)), cons(x1, 0)) -> c3(MARK(from(x0)))
   A__SEL(s(sel(x0, x1)), cons(x2, s(z0))) -> c3(A__SEL(a__sel(mark(x0), mark(x1)), s(mark(z0))), MARK(sel(x0, x1)))
   A__SEL(s(sel(x0, x1)), cons(x2, 0)) -> c3(A__SEL(a__sel(mark(x0), mark(x1)), 0), MARK(sel(x0, x1)))
   A__SEL(s(sel(x0, x1)), cons(x2, x3)) -> c3(A__SEL(sel(mark(x0), mark(x1)), mark(x3)), MARK(sel(x0, x1)))
   A__SEL(s(sel(x0, from(z0))), cons(x2, x3)) -> c3(A__SEL(a__sel(mark(x0), a__from(mark(z0))), mark(x3)), MARK(sel(x0, from(z0))))
   A__SEL(s(sel(x0, sel(z0, z1))), cons(x2, x3)) -> c3(A__SEL(a__sel(mark(x0), a__sel(mark(z0), mark(z1))), mark(x3)), MARK(sel(x0, sel(z0, z1))))
   A__SEL(s(sel(x0, cons(z0, z1))), cons(x2, x3)) -> c3(A__SEL(a__sel(mark(x0), cons(mark(z0), z1)), mark(x3)), MARK(sel(x0, cons(z0, z1))))
   A__SEL(s(sel(x0, s(z0))), cons(x2, x3)) -> c3(A__SEL(a__sel(mark(x0), s(mark(z0))), mark(x3)), MARK(sel(x0, s(z0))))
   A__SEL(s(sel(x0, 0)), cons(x2, x3)) -> c3(A__SEL(a__sel(mark(x0), 0), mark(x3)), MARK(sel(x0, 0)))
   A__SEL(s(sel(from(z0), x1)), cons(x2, x3)) -> c3(A__SEL(a__sel(a__from(mark(z0)), mark(x1)), mark(x3)), MARK(sel(from(z0), x1)))
   A__SEL(s(sel(sel(z0, z1), x1)), cons(x2, x3)) -> c3(A__SEL(a__sel(a__sel(mark(z0), mark(z1)), mark(x1)), mark(x3)), MARK(sel(sel(z0, z1), x1)))
   A__SEL(s(sel(cons(z0, z1), x1)), cons(x2, x3)) -> c3(A__SEL(a__sel(cons(mark(z0), z1), mark(x1)), mark(x3)), MARK(sel(cons(z0, z1), x1)))
   A__SEL(s(sel(s(z0), x1)), cons(x2, x3)) -> c3(A__SEL(a__sel(s(mark(z0)), mark(x1)), mark(x3)), MARK(sel(s(z0), x1)))
   A__SEL(s(sel(0, x1)), cons(x2, x3)) -> c3(A__SEL(a__sel(0, mark(x1)), mark(x3)), MARK(sel(0, x1)))
K tuples:none
Defined Rule Symbols:   a__from_1, a__sel_2, mark_1

Defined Pair Symbols:   A__FROM_1, A__SEL_2, MARK_1

Compound Symbols:   c_1, c2_1, c6_2, c9_1, c10_1, c3_2, c3_1, c4_2, c4_1, c7_2, c7_1, c8_2, c8_1


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

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

(96)
Obligation:
Complexity Dependency Tuples Problem

Rules:
   a__from(z0) -> cons(mark(z0), from(s(z0)))
   a__from(z0) -> from(z0)
   a__sel(0, cons(z0, z1)) -> mark(z0)
   a__sel(s(z0), cons(z1, z2)) -> a__sel(mark(z0), mark(z2))
   a__sel(z0, z1) -> sel(z0, z1)
   mark(from(z0)) -> a__from(mark(z0))
   mark(sel(z0, z1)) -> a__sel(mark(z0), mark(z1))
   mark(cons(z0, z1)) -> cons(mark(z0), z1)
   mark(s(z0)) -> s(mark(z0))
   mark(0) -> 0
Tuples:
   A__FROM(z0) -> c(MARK(z0))
   A__SEL(0, cons(z0, z1)) -> c2(MARK(z0))
   MARK(from(z0)) -> c6(A__FROM(mark(z0)), MARK(z0))
   MARK(cons(z0, z1)) -> c9(MARK(z0))
   MARK(s(z0)) -> c10(MARK(z0))
   A__SEL(s(s(z0)), cons(x1, x2)) -> c3(A__SEL(s(mark(z0)), mark(x2)), MARK(s(z0)))
   A__SEL(s(x0), cons(x1, s(z0))) -> c3(MARK(x0))
   A__SEL(s(x0), cons(x1, 0)) -> c3(MARK(x0))
   A__SEL(s(cons(z0, z1)), cons(x1, x2)) -> c3(MARK(cons(z0, z1)))
   A__SEL(s(0), cons(x1, x2)) -> c3(A__SEL(0, mark(x2)))
   A__SEL(s(x0), cons(x1, from(z0))) -> c4(A__SEL(mark(x0), a__from(mark(z0))), MARK(from(z0)))
   A__SEL(s(x0), cons(x1, sel(z0, z1))) -> c4(A__SEL(mark(x0), a__sel(mark(z0), mark(z1))), MARK(sel(z0, z1)))
   A__SEL(s(x0), cons(x1, cons(z0, z1))) -> c4(A__SEL(mark(x0), cons(mark(z0), z1)), MARK(cons(z0, z1)))
   A__SEL(s(from(z0)), cons(x1, x2)) -> c4(A__SEL(a__from(mark(z0)), mark(x2)), MARK(x2))
   A__SEL(s(sel(z0, z1)), cons(x1, x2)) -> c4(A__SEL(a__sel(mark(z0), mark(z1)), mark(x2)), MARK(x2))
   A__SEL(s(s(z0)), cons(x1, x2)) -> c4(A__SEL(s(mark(z0)), mark(x2)), MARK(x2))
   A__SEL(s(0), cons(x1, x2)) -> c4(A__SEL(0, mark(x2)), MARK(x2))
   A__SEL(s(x0), cons(x1, s(z0))) -> c4(MARK(s(z0)))
   A__SEL(s(cons(z0, z1)), cons(x1, x2)) -> c4(MARK(x2))
   MARK(sel(x0, from(z0))) -> c7(A__SEL(mark(x0), a__from(mark(z0))), MARK(x0))
   MARK(sel(x0, sel(z0, z1))) -> c7(A__SEL(mark(x0), a__sel(mark(z0), mark(z1))), MARK(x0))
   MARK(sel(x0, cons(z0, z1))) -> c7(A__SEL(mark(x0), cons(mark(z0), z1)), MARK(x0))
   MARK(sel(from(z0), x1)) -> c7(A__SEL(a__from(mark(z0)), mark(x1)), MARK(from(z0)))
   MARK(sel(sel(z0, z1), x1)) -> c7(A__SEL(a__sel(mark(z0), mark(z1)), mark(x1)), MARK(sel(z0, z1)))
   MARK(sel(s(z0), x1)) -> c7(A__SEL(s(mark(z0)), mark(x1)), MARK(s(z0)))
   MARK(sel(x0, s(z0))) -> c7(MARK(x0))
   MARK(sel(x0, 0)) -> c7(MARK(x0))
   MARK(sel(cons(z0, z1), x1)) -> c7(MARK(cons(z0, z1)))
   MARK(sel(0, x1)) -> c7(A__SEL(0, mark(x1)))
   MARK(sel(x0, from(z0))) -> c8(A__SEL(mark(x0), a__from(mark(z0))), MARK(from(z0)))
   MARK(sel(x0, sel(z0, z1))) -> c8(A__SEL(mark(x0), a__sel(mark(z0), mark(z1))), MARK(sel(z0, z1)))
   MARK(sel(x0, cons(z0, z1))) -> c8(A__SEL(mark(x0), cons(mark(z0), z1)), MARK(cons(z0, z1)))
   MARK(sel(from(z0), x1)) -> c8(A__SEL(a__from(mark(z0)), mark(x1)), MARK(x1))
   MARK(sel(sel(z0, z1), x1)) -> c8(A__SEL(a__sel(mark(z0), mark(z1)), mark(x1)), MARK(x1))
   MARK(sel(s(z0), x1)) -> c8(A__SEL(s(mark(z0)), mark(x1)), MARK(x1))
   MARK(sel(0, x1)) -> c8(A__SEL(0, mark(x1)), MARK(x1))
   MARK(sel(x0, s(z0))) -> c8(MARK(s(z0)))
   MARK(sel(cons(z0, z1), x1)) -> c8(MARK(x1))
   A__SEL(s(x0), cons(x1, from(x2))) -> c3(A__SEL(mark(x0), cons(mark(mark(x2)), from(s(mark(x2))))), MARK(x0))
   A__SEL(s(x0), cons(x1, from(from(z0)))) -> c3(A__SEL(mark(x0), a__from(a__from(mark(z0)))), MARK(x0))
   A__SEL(s(x0), cons(x1, from(sel(z0, z1)))) -> c3(A__SEL(mark(x0), a__from(a__sel(mark(z0), mark(z1)))), MARK(x0))
   A__SEL(s(x0), cons(x1, from(cons(z0, z1)))) -> c3(A__SEL(mark(x0), a__from(cons(mark(z0), z1))), MARK(x0))
   A__SEL(s(x0), cons(x1, from(s(z0)))) -> c3(A__SEL(mark(x0), a__from(s(mark(z0)))), MARK(x0))
   A__SEL(s(x0), cons(x1, from(0))) -> c3(A__SEL(mark(x0), a__from(0)), MARK(x0))
   A__SEL(s(from(z0)), cons(x1, from(x2))) -> c3(A__SEL(a__from(mark(z0)), a__from(mark(x2))), MARK(from(z0)))
   A__SEL(s(sel(z0, z1)), cons(x1, from(x2))) -> c3(A__SEL(a__sel(mark(z0), mark(z1)), a__from(mark(x2))), MARK(sel(z0, z1)))
   A__SEL(s(s(z0)), cons(x1, from(x2))) -> c3(A__SEL(s(mark(z0)), a__from(mark(x2))), MARK(s(z0)))
   A__SEL(s(x0), cons(x1, from(x2))) -> c3(MARK(x0))
   A__SEL(s(cons(z0, z1)), cons(x1, from(x2))) -> c3(MARK(cons(z0, z1)))
   A__SEL(s(0), cons(x1, from(x2))) -> c3(A__SEL(0, a__from(mark(x2))))
   A__SEL(s(x0), cons(x1, sel(x2, from(z0)))) -> c3(A__SEL(mark(x0), a__sel(mark(x2), a__from(mark(z0)))), MARK(x0))
   A__SEL(s(x0), cons(x1, sel(x2, sel(z0, z1)))) -> c3(A__SEL(mark(x0), a__sel(mark(x2), a__sel(mark(z0), mark(z1)))), MARK(x0))
   A__SEL(s(x0), cons(x1, sel(x2, cons(z0, z1)))) -> c3(A__SEL(mark(x0), a__sel(mark(x2), cons(mark(z0), z1))), MARK(x0))
   A__SEL(s(x0), cons(x1, sel(x2, s(z0)))) -> c3(A__SEL(mark(x0), a__sel(mark(x2), s(mark(z0)))), MARK(x0))
   A__SEL(s(x0), cons(x1, sel(x2, 0))) -> c3(A__SEL(mark(x0), a__sel(mark(x2), 0)), MARK(x0))
   A__SEL(s(x0), cons(x1, sel(from(z0), x3))) -> c3(A__SEL(mark(x0), a__sel(a__from(mark(z0)), mark(x3))), MARK(x0))
   A__SEL(s(x0), cons(x1, sel(sel(z0, z1), x3))) -> c3(A__SEL(mark(x0), a__sel(a__sel(mark(z0), mark(z1)), mark(x3))), MARK(x0))
   A__SEL(s(x0), cons(x1, sel(cons(z0, z1), x3))) -> c3(A__SEL(mark(x0), a__sel(cons(mark(z0), z1), mark(x3))), MARK(x0))
   A__SEL(s(x0), cons(x1, sel(s(z0), x3))) -> c3(A__SEL(mark(x0), a__sel(s(mark(z0)), mark(x3))), MARK(x0))
   A__SEL(s(x0), cons(x1, sel(0, x3))) -> c3(A__SEL(mark(x0), a__sel(0, mark(x3))), MARK(x0))
   A__SEL(s(from(z0)), cons(x1, sel(x2, x3))) -> c3(A__SEL(a__from(mark(z0)), a__sel(mark(x2), mark(x3))), MARK(from(z0)))
   A__SEL(s(sel(z0, z1)), cons(x1, sel(x2, x3))) -> c3(A__SEL(a__sel(mark(z0), mark(z1)), a__sel(mark(x2), mark(x3))), MARK(sel(z0, z1)))
   A__SEL(s(s(z0)), cons(x1, sel(x2, x3))) -> c3(A__SEL(s(mark(z0)), a__sel(mark(x2), mark(x3))), MARK(s(z0)))
   A__SEL(s(x0), cons(x1, sel(x2, x3))) -> c3(MARK(x0))
   A__SEL(s(cons(z0, z1)), cons(x1, sel(x2, x3))) -> c3(MARK(cons(z0, z1)))
   A__SEL(s(0), cons(x1, sel(x2, x3))) -> c3(A__SEL(0, a__sel(mark(x2), mark(x3))))
   A__SEL(s(x0), cons(x1, cons(from(z0), x3))) -> c3(A__SEL(mark(x0), cons(a__from(mark(z0)), x3)), MARK(x0))
   A__SEL(s(x0), cons(x1, cons(sel(z0, z1), x3))) -> c3(A__SEL(mark(x0), cons(a__sel(mark(z0), mark(z1)), x3)), MARK(x0))
   A__SEL(s(x0), cons(x1, cons(cons(z0, z1), x3))) -> c3(A__SEL(mark(x0), cons(cons(mark(z0), z1), x3)), MARK(x0))
   A__SEL(s(x0), cons(x1, cons(s(z0), x3))) -> c3(A__SEL(mark(x0), cons(s(mark(z0)), x3)), MARK(x0))
   A__SEL(s(x0), cons(x1, cons(0, x3))) -> c3(A__SEL(mark(x0), cons(0, x3)), MARK(x0))
   A__SEL(s(from(z0)), cons(x1, cons(x2, x3))) -> c3(A__SEL(a__from(mark(z0)), cons(mark(x2), x3)), MARK(from(z0)))
   A__SEL(s(sel(z0, z1)), cons(x1, cons(x2, x3))) -> c3(A__SEL(a__sel(mark(z0), mark(z1)), cons(mark(x2), x3)), MARK(sel(z0, z1)))
   A__SEL(s(s(z0)), cons(x1, cons(x2, x3))) -> c3(A__SEL(s(mark(z0)), cons(mark(x2), x3)), MARK(s(z0)))
   A__SEL(s(cons(z0, z1)), cons(x1, cons(x2, x3))) -> c3(MARK(cons(z0, z1)))
   A__SEL(s(0), cons(x1, cons(x2, x3))) -> c3(A__SEL(0, cons(mark(x2), x3)))
   A__SEL(s(from(from(z0))), cons(x1, x2)) -> c3(A__SEL(a__from(a__from(mark(z0))), mark(x2)), MARK(from(from(z0))))
   A__SEL(s(from(sel(z0, z1))), cons(x1, x2)) -> c3(A__SEL(a__from(a__sel(mark(z0), mark(z1))), mark(x2)), MARK(from(sel(z0, z1))))
   A__SEL(s(from(cons(z0, z1))), cons(x1, x2)) -> c3(A__SEL(a__from(cons(mark(z0), z1)), mark(x2)), MARK(from(cons(z0, z1))))
   A__SEL(s(from(s(z0))), cons(x1, x2)) -> c3(A__SEL(a__from(s(mark(z0))), mark(x2)), MARK(from(s(z0))))
   A__SEL(s(from(0)), cons(x1, x2)) -> c3(A__SEL(a__from(0), mark(x2)), MARK(from(0)))
   A__SEL(s(from(x0)), cons(x1, x2)) -> c3(MARK(from(x0)))
   A__SEL(s(from(x0)), cons(x1, s(z0))) -> c3(MARK(from(x0)))
   A__SEL(s(from(x0)), cons(x1, 0)) -> c3(MARK(from(x0)))
   A__SEL(s(sel(x0, from(z0))), cons(x2, x3)) -> c3(A__SEL(a__sel(mark(x0), a__from(mark(z0))), mark(x3)), MARK(sel(x0, from(z0))))
   A__SEL(s(sel(x0, sel(z0, z1))), cons(x2, x3)) -> c3(A__SEL(a__sel(mark(x0), a__sel(mark(z0), mark(z1))), mark(x3)), MARK(sel(x0, sel(z0, z1))))
   A__SEL(s(sel(x0, cons(z0, z1))), cons(x2, x3)) -> c3(A__SEL(a__sel(mark(x0), cons(mark(z0), z1)), mark(x3)), MARK(sel(x0, cons(z0, z1))))
   A__SEL(s(sel(x0, s(z0))), cons(x2, x3)) -> c3(A__SEL(a__sel(mark(x0), s(mark(z0))), mark(x3)), MARK(sel(x0, s(z0))))
   A__SEL(s(sel(x0, 0)), cons(x2, x3)) -> c3(A__SEL(a__sel(mark(x0), 0), mark(x3)), MARK(sel(x0, 0)))
   A__SEL(s(sel(from(z0), x1)), cons(x2, x3)) -> c3(A__SEL(a__sel(a__from(mark(z0)), mark(x1)), mark(x3)), MARK(sel(from(z0), x1)))
   A__SEL(s(sel(sel(z0, z1), x1)), cons(x2, x3)) -> c3(A__SEL(a__sel(a__sel(mark(z0), mark(z1)), mark(x1)), mark(x3)), MARK(sel(sel(z0, z1), x1)))
   A__SEL(s(sel(cons(z0, z1), x1)), cons(x2, x3)) -> c3(A__SEL(a__sel(cons(mark(z0), z1), mark(x1)), mark(x3)), MARK(sel(cons(z0, z1), x1)))
   A__SEL(s(sel(s(z0), x1)), cons(x2, x3)) -> c3(A__SEL(a__sel(s(mark(z0)), mark(x1)), mark(x3)), MARK(sel(s(z0), x1)))
   A__SEL(s(sel(0, x1)), cons(x2, x3)) -> c3(A__SEL(a__sel(0, mark(x1)), mark(x3)), MARK(sel(0, x1)))
   A__SEL(s(sel(x0, x1)), cons(x2, s(z0))) -> c3(MARK(sel(x0, x1)))
   A__SEL(s(sel(x0, x1)), cons(x2, 0)) -> c3(MARK(sel(x0, x1)))
   A__SEL(s(sel(x0, x1)), cons(x2, x3)) -> c3(MARK(sel(x0, x1)))
S tuples:
   A__FROM(z0) -> c(MARK(z0))
   A__SEL(0, cons(z0, z1)) -> c2(MARK(z0))
   MARK(from(z0)) -> c6(A__FROM(mark(z0)), MARK(z0))
   MARK(cons(z0, z1)) -> c9(MARK(z0))
   MARK(s(z0)) -> c10(MARK(z0))
   A__SEL(s(s(z0)), cons(x1, x2)) -> c3(A__SEL(s(mark(z0)), mark(x2)), MARK(s(z0)))
   A__SEL(s(x0), cons(x1, s(z0))) -> c3(MARK(x0))
   A__SEL(s(x0), cons(x1, 0)) -> c3(MARK(x0))
   A__SEL(s(cons(z0, z1)), cons(x1, x2)) -> c3(MARK(cons(z0, z1)))
   A__SEL(s(0), cons(x1, x2)) -> c3(A__SEL(0, mark(x2)))
   A__SEL(s(x0), cons(x1, from(z0))) -> c4(A__SEL(mark(x0), a__from(mark(z0))), MARK(from(z0)))
   A__SEL(s(x0), cons(x1, sel(z0, z1))) -> c4(A__SEL(mark(x0), a__sel(mark(z0), mark(z1))), MARK(sel(z0, z1)))
   A__SEL(s(x0), cons(x1, cons(z0, z1))) -> c4(A__SEL(mark(x0), cons(mark(z0), z1)), MARK(cons(z0, z1)))
   A__SEL(s(from(z0)), cons(x1, x2)) -> c4(A__SEL(a__from(mark(z0)), mark(x2)), MARK(x2))
   A__SEL(s(sel(z0, z1)), cons(x1, x2)) -> c4(A__SEL(a__sel(mark(z0), mark(z1)), mark(x2)), MARK(x2))
   A__SEL(s(s(z0)), cons(x1, x2)) -> c4(A__SEL(s(mark(z0)), mark(x2)), MARK(x2))
   A__SEL(s(0), cons(x1, x2)) -> c4(A__SEL(0, mark(x2)), MARK(x2))
   A__SEL(s(x0), cons(x1, s(z0))) -> c4(MARK(s(z0)))
   A__SEL(s(cons(z0, z1)), cons(x1, x2)) -> c4(MARK(x2))
   MARK(sel(x0, from(z0))) -> c7(A__SEL(mark(x0), a__from(mark(z0))), MARK(x0))
   MARK(sel(x0, sel(z0, z1))) -> c7(A__SEL(mark(x0), a__sel(mark(z0), mark(z1))), MARK(x0))
   MARK(sel(x0, cons(z0, z1))) -> c7(A__SEL(mark(x0), cons(mark(z0), z1)), MARK(x0))
   MARK(sel(from(z0), x1)) -> c7(A__SEL(a__from(mark(z0)), mark(x1)), MARK(from(z0)))
   MARK(sel(sel(z0, z1), x1)) -> c7(A__SEL(a__sel(mark(z0), mark(z1)), mark(x1)), MARK(sel(z0, z1)))
   MARK(sel(s(z0), x1)) -> c7(A__SEL(s(mark(z0)), mark(x1)), MARK(s(z0)))
   MARK(sel(x0, s(z0))) -> c7(MARK(x0))
   MARK(sel(x0, 0)) -> c7(MARK(x0))
   MARK(sel(cons(z0, z1), x1)) -> c7(MARK(cons(z0, z1)))
   MARK(sel(0, x1)) -> c7(A__SEL(0, mark(x1)))
   MARK(sel(x0, from(z0))) -> c8(A__SEL(mark(x0), a__from(mark(z0))), MARK(from(z0)))
   MARK(sel(x0, sel(z0, z1))) -> c8(A__SEL(mark(x0), a__sel(mark(z0), mark(z1))), MARK(sel(z0, z1)))
   MARK(sel(x0, cons(z0, z1))) -> c8(A__SEL(mark(x0), cons(mark(z0), z1)), MARK(cons(z0, z1)))
   MARK(sel(from(z0), x1)) -> c8(A__SEL(a__from(mark(z0)), mark(x1)), MARK(x1))
   MARK(sel(sel(z0, z1), x1)) -> c8(A__SEL(a__sel(mark(z0), mark(z1)), mark(x1)), MARK(x1))
   MARK(sel(s(z0), x1)) -> c8(A__SEL(s(mark(z0)), mark(x1)), MARK(x1))
   MARK(sel(0, x1)) -> c8(A__SEL(0, mark(x1)), MARK(x1))
   MARK(sel(x0, s(z0))) -> c8(MARK(s(z0)))
   MARK(sel(cons(z0, z1), x1)) -> c8(MARK(x1))
   A__SEL(s(x0), cons(x1, from(x2))) -> c3(A__SEL(mark(x0), cons(mark(mark(x2)), from(s(mark(x2))))), MARK(x0))
   A__SEL(s(x0), cons(x1, from(from(z0)))) -> c3(A__SEL(mark(x0), a__from(a__from(mark(z0)))), MARK(x0))
   A__SEL(s(x0), cons(x1, from(sel(z0, z1)))) -> c3(A__SEL(mark(x0), a__from(a__sel(mark(z0), mark(z1)))), MARK(x0))
   A__SEL(s(x0), cons(x1, from(cons(z0, z1)))) -> c3(A__SEL(mark(x0), a__from(cons(mark(z0), z1))), MARK(x0))
   A__SEL(s(x0), cons(x1, from(s(z0)))) -> c3(A__SEL(mark(x0), a__from(s(mark(z0)))), MARK(x0))
   A__SEL(s(x0), cons(x1, from(0))) -> c3(A__SEL(mark(x0), a__from(0)), MARK(x0))
   A__SEL(s(from(z0)), cons(x1, from(x2))) -> c3(A__SEL(a__from(mark(z0)), a__from(mark(x2))), MARK(from(z0)))
   A__SEL(s(sel(z0, z1)), cons(x1, from(x2))) -> c3(A__SEL(a__sel(mark(z0), mark(z1)), a__from(mark(x2))), MARK(sel(z0, z1)))
   A__SEL(s(s(z0)), cons(x1, from(x2))) -> c3(A__SEL(s(mark(z0)), a__from(mark(x2))), MARK(s(z0)))
   A__SEL(s(x0), cons(x1, from(x2))) -> c3(MARK(x0))
   A__SEL(s(cons(z0, z1)), cons(x1, from(x2))) -> c3(MARK(cons(z0, z1)))
   A__SEL(s(0), cons(x1, from(x2))) -> c3(A__SEL(0, a__from(mark(x2))))
   A__SEL(s(x0), cons(x1, sel(x2, from(z0)))) -> c3(A__SEL(mark(x0), a__sel(mark(x2), a__from(mark(z0)))), MARK(x0))
   A__SEL(s(x0), cons(x1, sel(x2, sel(z0, z1)))) -> c3(A__SEL(mark(x0), a__sel(mark(x2), a__sel(mark(z0), mark(z1)))), MARK(x0))
   A__SEL(s(x0), cons(x1, sel(x2, cons(z0, z1)))) -> c3(A__SEL(mark(x0), a__sel(mark(x2), cons(mark(z0), z1))), MARK(x0))
   A__SEL(s(x0), cons(x1, sel(x2, s(z0)))) -> c3(A__SEL(mark(x0), a__sel(mark(x2), s(mark(z0)))), MARK(x0))
   A__SEL(s(x0), cons(x1, sel(x2, 0))) -> c3(A__SEL(mark(x0), a__sel(mark(x2), 0)), MARK(x0))
   A__SEL(s(x0), cons(x1, sel(from(z0), x3))) -> c3(A__SEL(mark(x0), a__sel(a__from(mark(z0)), mark(x3))), MARK(x0))
   A__SEL(s(x0), cons(x1, sel(sel(z0, z1), x3))) -> c3(A__SEL(mark(x0), a__sel(a__sel(mark(z0), mark(z1)), mark(x3))), MARK(x0))
   A__SEL(s(x0), cons(x1, sel(cons(z0, z1), x3))) -> c3(A__SEL(mark(x0), a__sel(cons(mark(z0), z1), mark(x3))), MARK(x0))
   A__SEL(s(x0), cons(x1, sel(s(z0), x3))) -> c3(A__SEL(mark(x0), a__sel(s(mark(z0)), mark(x3))), MARK(x0))
   A__SEL(s(x0), cons(x1, sel(0, x3))) -> c3(A__SEL(mark(x0), a__sel(0, mark(x3))), MARK(x0))
   A__SEL(s(from(z0)), cons(x1, sel(x2, x3))) -> c3(A__SEL(a__from(mark(z0)), a__sel(mark(x2), mark(x3))), MARK(from(z0)))
   A__SEL(s(sel(z0, z1)), cons(x1, sel(x2, x3))) -> c3(A__SEL(a__sel(mark(z0), mark(z1)), a__sel(mark(x2), mark(x3))), MARK(sel(z0, z1)))
   A__SEL(s(s(z0)), cons(x1, sel(x2, x3))) -> c3(A__SEL(s(mark(z0)), a__sel(mark(x2), mark(x3))), MARK(s(z0)))
   A__SEL(s(x0), cons(x1, sel(x2, x3))) -> c3(MARK(x0))
   A__SEL(s(cons(z0, z1)), cons(x1, sel(x2, x3))) -> c3(MARK(cons(z0, z1)))
   A__SEL(s(0), cons(x1, sel(x2, x3))) -> c3(A__SEL(0, a__sel(mark(x2), mark(x3))))
   A__SEL(s(x0), cons(x1, cons(from(z0), x3))) -> c3(A__SEL(mark(x0), cons(a__from(mark(z0)), x3)), MARK(x0))
   A__SEL(s(x0), cons(x1, cons(sel(z0, z1), x3))) -> c3(A__SEL(mark(x0), cons(a__sel(mark(z0), mark(z1)), x3)), MARK(x0))
   A__SEL(s(x0), cons(x1, cons(cons(z0, z1), x3))) -> c3(A__SEL(mark(x0), cons(cons(mark(z0), z1), x3)), MARK(x0))
   A__SEL(s(x0), cons(x1, cons(s(z0), x3))) -> c3(A__SEL(mark(x0), cons(s(mark(z0)), x3)), MARK(x0))
   A__SEL(s(x0), cons(x1, cons(0, x3))) -> c3(A__SEL(mark(x0), cons(0, x3)), MARK(x0))
   A__SEL(s(from(z0)), cons(x1, cons(x2, x3))) -> c3(A__SEL(a__from(mark(z0)), cons(mark(x2), x3)), MARK(from(z0)))
   A__SEL(s(sel(z0, z1)), cons(x1, cons(x2, x3))) -> c3(A__SEL(a__sel(mark(z0), mark(z1)), cons(mark(x2), x3)), MARK(sel(z0, z1)))
   A__SEL(s(s(z0)), cons(x1, cons(x2, x3))) -> c3(A__SEL(s(mark(z0)), cons(mark(x2), x3)), MARK(s(z0)))
   A__SEL(s(cons(z0, z1)), cons(x1, cons(x2, x3))) -> c3(MARK(cons(z0, z1)))
   A__SEL(s(0), cons(x1, cons(x2, x3))) -> c3(A__SEL(0, cons(mark(x2), x3)))
   A__SEL(s(from(from(z0))), cons(x1, x2)) -> c3(A__SEL(a__from(a__from(mark(z0))), mark(x2)), MARK(from(from(z0))))
   A__SEL(s(from(sel(z0, z1))), cons(x1, x2)) -> c3(A__SEL(a__from(a__sel(mark(z0), mark(z1))), mark(x2)), MARK(from(sel(z0, z1))))
   A__SEL(s(from(cons(z0, z1))), cons(x1, x2)) -> c3(A__SEL(a__from(cons(mark(z0), z1)), mark(x2)), MARK(from(cons(z0, z1))))
   A__SEL(s(from(s(z0))), cons(x1, x2)) -> c3(A__SEL(a__from(s(mark(z0))), mark(x2)), MARK(from(s(z0))))
   A__SEL(s(from(0)), cons(x1, x2)) -> c3(A__SEL(a__from(0), mark(x2)), MARK(from(0)))
   A__SEL(s(from(x0)), cons(x1, x2)) -> c3(MARK(from(x0)))
   A__SEL(s(from(x0)), cons(x1, s(z0))) -> c3(MARK(from(x0)))
   A__SEL(s(from(x0)), cons(x1, 0)) -> c3(MARK(from(x0)))
   A__SEL(s(sel(x0, from(z0))), cons(x2, x3)) -> c3(A__SEL(a__sel(mark(x0), a__from(mark(z0))), mark(x3)), MARK(sel(x0, from(z0))))
   A__SEL(s(sel(x0, sel(z0, z1))), cons(x2, x3)) -> c3(A__SEL(a__sel(mark(x0), a__sel(mark(z0), mark(z1))), mark(x3)), MARK(sel(x0, sel(z0, z1))))
   A__SEL(s(sel(x0, cons(z0, z1))), cons(x2, x3)) -> c3(A__SEL(a__sel(mark(x0), cons(mark(z0), z1)), mark(x3)), MARK(sel(x0, cons(z0, z1))))
   A__SEL(s(sel(x0, s(z0))), cons(x2, x3)) -> c3(A__SEL(a__sel(mark(x0), s(mark(z0))), mark(x3)), MARK(sel(x0, s(z0))))
   A__SEL(s(sel(x0, 0)), cons(x2, x3)) -> c3(A__SEL(a__sel(mark(x0), 0), mark(x3)), MARK(sel(x0, 0)))
   A__SEL(s(sel(from(z0), x1)), cons(x2, x3)) -> c3(A__SEL(a__sel(a__from(mark(z0)), mark(x1)), mark(x3)), MARK(sel(from(z0), x1)))
   A__SEL(s(sel(sel(z0, z1), x1)), cons(x2, x3)) -> c3(A__SEL(a__sel(a__sel(mark(z0), mark(z1)), mark(x1)), mark(x3)), MARK(sel(sel(z0, z1), x1)))
   A__SEL(s(sel(cons(z0, z1), x1)), cons(x2, x3)) -> c3(A__SEL(a__sel(cons(mark(z0), z1), mark(x1)), mark(x3)), MARK(sel(cons(z0, z1), x1)))
   A__SEL(s(sel(s(z0), x1)), cons(x2, x3)) -> c3(A__SEL(a__sel(s(mark(z0)), mark(x1)), mark(x3)), MARK(sel(s(z0), x1)))
   A__SEL(s(sel(0, x1)), cons(x2, x3)) -> c3(A__SEL(a__sel(0, mark(x1)), mark(x3)), MARK(sel(0, x1)))
   A__SEL(s(sel(x0, x1)), cons(x2, s(z0))) -> c3(MARK(sel(x0, x1)))
   A__SEL(s(sel(x0, x1)), cons(x2, 0)) -> c3(MARK(sel(x0, x1)))
   A__SEL(s(sel(x0, x1)), cons(x2, x3)) -> c3(MARK(sel(x0, x1)))
K tuples:none
Defined Rule Symbols:   a__from_1, a__sel_2, mark_1

Defined Pair Symbols:   A__FROM_1, A__SEL_2, MARK_1

Compound Symbols:   c_1, c2_1, c6_2, c9_1, c10_1, c3_2, c3_1, c4_2, c4_1, c7_2, c7_1, c8_2, c8_1


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(97) CdtNarrowingProof (BOTH BOUNDS(ID, ID))
Use narrowing to replace A__SEL(s(s(z0)), cons(x1, x2)) -> c3(A__SEL(s(mark(z0)), mark(x2)), MARK(s(z0))) by 
   A__SEL(s(s(x0)), cons(x1, from(z0))) -> c3(A__SEL(s(mark(x0)), a__from(mark(z0))), MARK(s(x0)))
   A__SEL(s(s(x0)), cons(x1, sel(z0, z1))) -> c3(A__SEL(s(mark(x0)), a__sel(mark(z0), mark(z1))), MARK(s(x0)))
   A__SEL(s(s(x0)), cons(x1, cons(z0, z1))) -> c3(A__SEL(s(mark(x0)), cons(mark(z0), z1)), MARK(s(x0)))
   A__SEL(s(s(x0)), cons(x1, s(z0))) -> c3(A__SEL(s(mark(x0)), s(mark(z0))), MARK(s(x0)))
   A__SEL(s(s(x0)), cons(x1, 0)) -> c3(A__SEL(s(mark(x0)), 0), MARK(s(x0)))
   A__SEL(s(s(from(z0))), cons(x1, x2)) -> c3(A__SEL(s(a__from(mark(z0))), mark(x2)), MARK(s(from(z0))))
   A__SEL(s(s(sel(z0, z1))), cons(x1, x2)) -> c3(A__SEL(s(a__sel(mark(z0), mark(z1))), mark(x2)), MARK(s(sel(z0, z1))))
   A__SEL(s(s(cons(z0, z1))), cons(x1, x2)) -> c3(A__SEL(s(cons(mark(z0), z1)), mark(x2)), MARK(s(cons(z0, z1))))
   A__SEL(s(s(s(z0))), cons(x1, x2)) -> c3(A__SEL(s(s(mark(z0))), mark(x2)), MARK(s(s(z0))))
   A__SEL(s(s(0)), cons(x1, x2)) -> c3(A__SEL(s(0), mark(x2)), MARK(s(0)))
   A__SEL(s(s(x0)), cons(x1, x2)) -> c3(MARK(s(x0)))

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

(98)
Obligation:
Complexity Dependency Tuples Problem

Rules:
   a__from(z0) -> cons(mark(z0), from(s(z0)))
   a__from(z0) -> from(z0)
   a__sel(0, cons(z0, z1)) -> mark(z0)
   a__sel(s(z0), cons(z1, z2)) -> a__sel(mark(z0), mark(z2))
   a__sel(z0, z1) -> sel(z0, z1)
   mark(from(z0)) -> a__from(mark(z0))
   mark(sel(z0, z1)) -> a__sel(mark(z0), mark(z1))
   mark(cons(z0, z1)) -> cons(mark(z0), z1)
   mark(s(z0)) -> s(mark(z0))
   mark(0) -> 0
Tuples:
   A__FROM(z0) -> c(MARK(z0))
   A__SEL(0, cons(z0, z1)) -> c2(MARK(z0))
   MARK(from(z0)) -> c6(A__FROM(mark(z0)), MARK(z0))
   MARK(cons(z0, z1)) -> c9(MARK(z0))
   MARK(s(z0)) -> c10(MARK(z0))
   A__SEL(s(x0), cons(x1, s(z0))) -> c3(MARK(x0))
   A__SEL(s(x0), cons(x1, 0)) -> c3(MARK(x0))
   A__SEL(s(cons(z0, z1)), cons(x1, x2)) -> c3(MARK(cons(z0, z1)))
   A__SEL(s(0), cons(x1, x2)) -> c3(A__SEL(0, mark(x2)))
   A__SEL(s(x0), cons(x1, from(z0))) -> c4(A__SEL(mark(x0), a__from(mark(z0))), MARK(from(z0)))
   A__SEL(s(x0), cons(x1, sel(z0, z1))) -> c4(A__SEL(mark(x0), a__sel(mark(z0), mark(z1))), MARK(sel(z0, z1)))
   A__SEL(s(x0), cons(x1, cons(z0, z1))) -> c4(A__SEL(mark(x0), cons(mark(z0), z1)), MARK(cons(z0, z1)))
   A__SEL(s(from(z0)), cons(x1, x2)) -> c4(A__SEL(a__from(mark(z0)), mark(x2)), MARK(x2))
   A__SEL(s(sel(z0, z1)), cons(x1, x2)) -> c4(A__SEL(a__sel(mark(z0), mark(z1)), mark(x2)), MARK(x2))
   A__SEL(s(s(z0)), cons(x1, x2)) -> c4(A__SEL(s(mark(z0)), mark(x2)), MARK(x2))
   A__SEL(s(0), cons(x1, x2)) -> c4(A__SEL(0, mark(x2)), MARK(x2))
   A__SEL(s(x0), cons(x1, s(z0))) -> c4(MARK(s(z0)))
   A__SEL(s(cons(z0, z1)), cons(x1, x2)) -> c4(MARK(x2))
   MARK(sel(x0, from(z0))) -> c7(A__SEL(mark(x0), a__from(mark(z0))), MARK(x0))
   MARK(sel(x0, sel(z0, z1))) -> c7(A__SEL(mark(x0), a__sel(mark(z0), mark(z1))), MARK(x0))
   MARK(sel(x0, cons(z0, z1))) -> c7(A__SEL(mark(x0), cons(mark(z0), z1)), MARK(x0))
   MARK(sel(from(z0), x1)) -> c7(A__SEL(a__from(mark(z0)), mark(x1)), MARK(from(z0)))
   MARK(sel(sel(z0, z1), x1)) -> c7(A__SEL(a__sel(mark(z0), mark(z1)), mark(x1)), MARK(sel(z0, z1)))
   MARK(sel(s(z0), x1)) -> c7(A__SEL(s(mark(z0)), mark(x1)), MARK(s(z0)))
   MARK(sel(x0, s(z0))) -> c7(MARK(x0))
   MARK(sel(x0, 0)) -> c7(MARK(x0))
   MARK(sel(cons(z0, z1), x1)) -> c7(MARK(cons(z0, z1)))
   MARK(sel(0, x1)) -> c7(A__SEL(0, mark(x1)))
   MARK(sel(x0, from(z0))) -> c8(A__SEL(mark(x0), a__from(mark(z0))), MARK(from(z0)))
   MARK(sel(x0, sel(z0, z1))) -> c8(A__SEL(mark(x0), a__sel(mark(z0), mark(z1))), MARK(sel(z0, z1)))
   MARK(sel(x0, cons(z0, z1))) -> c8(A__SEL(mark(x0), cons(mark(z0), z1)), MARK(cons(z0, z1)))
   MARK(sel(from(z0), x1)) -> c8(A__SEL(a__from(mark(z0)), mark(x1)), MARK(x1))
   MARK(sel(sel(z0, z1), x1)) -> c8(A__SEL(a__sel(mark(z0), mark(z1)), mark(x1)), MARK(x1))
   MARK(sel(s(z0), x1)) -> c8(A__SEL(s(mark(z0)), mark(x1)), MARK(x1))
   MARK(sel(0, x1)) -> c8(A__SEL(0, mark(x1)), MARK(x1))
   MARK(sel(x0, s(z0))) -> c8(MARK(s(z0)))
   MARK(sel(cons(z0, z1), x1)) -> c8(MARK(x1))
   A__SEL(s(x0), cons(x1, from(x2))) -> c3(A__SEL(mark(x0), cons(mark(mark(x2)), from(s(mark(x2))))), MARK(x0))
   A__SEL(s(x0), cons(x1, from(from(z0)))) -> c3(A__SEL(mark(x0), a__from(a__from(mark(z0)))), MARK(x0))
   A__SEL(s(x0), cons(x1, from(sel(z0, z1)))) -> c3(A__SEL(mark(x0), a__from(a__sel(mark(z0), mark(z1)))), MARK(x0))
   A__SEL(s(x0), cons(x1, from(cons(z0, z1)))) -> c3(A__SEL(mark(x0), a__from(cons(mark(z0), z1))), MARK(x0))
   A__SEL(s(x0), cons(x1, from(s(z0)))) -> c3(A__SEL(mark(x0), a__from(s(mark(z0)))), MARK(x0))
   A__SEL(s(x0), cons(x1, from(0))) -> c3(A__SEL(mark(x0), a__from(0)), MARK(x0))
   A__SEL(s(from(z0)), cons(x1, from(x2))) -> c3(A__SEL(a__from(mark(z0)), a__from(mark(x2))), MARK(from(z0)))
   A__SEL(s(sel(z0, z1)), cons(x1, from(x2))) -> c3(A__SEL(a__sel(mark(z0), mark(z1)), a__from(mark(x2))), MARK(sel(z0, z1)))
   A__SEL(s(s(z0)), cons(x1, from(x2))) -> c3(A__SEL(s(mark(z0)), a__from(mark(x2))), MARK(s(z0)))
   A__SEL(s(x0), cons(x1, from(x2))) -> c3(MARK(x0))
   A__SEL(s(cons(z0, z1)), cons(x1, from(x2))) -> c3(MARK(cons(z0, z1)))
   A__SEL(s(0), cons(x1, from(x2))) -> c3(A__SEL(0, a__from(mark(x2))))
   A__SEL(s(x0), cons(x1, sel(x2, from(z0)))) -> c3(A__SEL(mark(x0), a__sel(mark(x2), a__from(mark(z0)))), MARK(x0))
   A__SEL(s(x0), cons(x1, sel(x2, sel(z0, z1)))) -> c3(A__SEL(mark(x0), a__sel(mark(x2), a__sel(mark(z0), mark(z1)))), MARK(x0))
   A__SEL(s(x0), cons(x1, sel(x2, cons(z0, z1)))) -> c3(A__SEL(mark(x0), a__sel(mark(x2), cons(mark(z0), z1))), MARK(x0))
   A__SEL(s(x0), cons(x1, sel(x2, s(z0)))) -> c3(A__SEL(mark(x0), a__sel(mark(x2), s(mark(z0)))), MARK(x0))
   A__SEL(s(x0), cons(x1, sel(x2, 0))) -> c3(A__SEL(mark(x0), a__sel(mark(x2), 0)), MARK(x0))
   A__SEL(s(x0), cons(x1, sel(from(z0), x3))) -> c3(A__SEL(mark(x0), a__sel(a__from(mark(z0)), mark(x3))), MARK(x0))
   A__SEL(s(x0), cons(x1, sel(sel(z0, z1), x3))) -> c3(A__SEL(mark(x0), a__sel(a__sel(mark(z0), mark(z1)), mark(x3))), MARK(x0))
   A__SEL(s(x0), cons(x1, sel(cons(z0, z1), x3))) -> c3(A__SEL(mark(x0), a__sel(cons(mark(z0), z1), mark(x3))), MARK(x0))
   A__SEL(s(x0), cons(x1, sel(s(z0), x3))) -> c3(A__SEL(mark(x0), a__sel(s(mark(z0)), mark(x3))), MARK(x0))
   A__SEL(s(x0), cons(x1, sel(0, x3))) -> c3(A__SEL(mark(x0), a__sel(0, mark(x3))), MARK(x0))
   A__SEL(s(from(z0)), cons(x1, sel(x2, x3))) -> c3(A__SEL(a__from(mark(z0)), a__sel(mark(x2), mark(x3))), MARK(from(z0)))
   A__SEL(s(sel(z0, z1)), cons(x1, sel(x2, x3))) -> c3(A__SEL(a__sel(mark(z0), mark(z1)), a__sel(mark(x2), mark(x3))), MARK(sel(z0, z1)))
   A__SEL(s(s(z0)), cons(x1, sel(x2, x3))) -> c3(A__SEL(s(mark(z0)), a__sel(mark(x2), mark(x3))), MARK(s(z0)))
   A__SEL(s(x0), cons(x1, sel(x2, x3))) -> c3(MARK(x0))
   A__SEL(s(cons(z0, z1)), cons(x1, sel(x2, x3))) -> c3(MARK(cons(z0, z1)))
   A__SEL(s(0), cons(x1, sel(x2, x3))) -> c3(A__SEL(0, a__sel(mark(x2), mark(x3))))
   A__SEL(s(x0), cons(x1, cons(from(z0), x3))) -> c3(A__SEL(mark(x0), cons(a__from(mark(z0)), x3)), MARK(x0))
   A__SEL(s(x0), cons(x1, cons(sel(z0, z1), x3))) -> c3(A__SEL(mark(x0), cons(a__sel(mark(z0), mark(z1)), x3)), MARK(x0))
   A__SEL(s(x0), cons(x1, cons(cons(z0, z1), x3))) -> c3(A__SEL(mark(x0), cons(cons(mark(z0), z1), x3)), MARK(x0))
   A__SEL(s(x0), cons(x1, cons(s(z0), x3))) -> c3(A__SEL(mark(x0), cons(s(mark(z0)), x3)), MARK(x0))
   A__SEL(s(x0), cons(x1, cons(0, x3))) -> c3(A__SEL(mark(x0), cons(0, x3)), MARK(x0))
   A__SEL(s(from(z0)), cons(x1, cons(x2, x3))) -> c3(A__SEL(a__from(mark(z0)), cons(mark(x2), x3)), MARK(from(z0)))
   A__SEL(s(sel(z0, z1)), cons(x1, cons(x2, x3))) -> c3(A__SEL(a__sel(mark(z0), mark(z1)), cons(mark(x2), x3)), MARK(sel(z0, z1)))
   A__SEL(s(s(z0)), cons(x1, cons(x2, x3))) -> c3(A__SEL(s(mark(z0)), cons(mark(x2), x3)), MARK(s(z0)))
   A__SEL(s(cons(z0, z1)), cons(x1, cons(x2, x3))) -> c3(MARK(cons(z0, z1)))
   A__SEL(s(0), cons(x1, cons(x2, x3))) -> c3(A__SEL(0, cons(mark(x2), x3)))
   A__SEL(s(from(from(z0))), cons(x1, x2)) -> c3(A__SEL(a__from(a__from(mark(z0))), mark(x2)), MARK(from(from(z0))))
   A__SEL(s(from(sel(z0, z1))), cons(x1, x2)) -> c3(A__SEL(a__from(a__sel(mark(z0), mark(z1))), mark(x2)), MARK(from(sel(z0, z1))))
   A__SEL(s(from(cons(z0, z1))), cons(x1, x2)) -> c3(A__SEL(a__from(cons(mark(z0), z1)), mark(x2)), MARK(from(cons(z0, z1))))
   A__SEL(s(from(s(z0))), cons(x1, x2)) -> c3(A__SEL(a__from(s(mark(z0))), mark(x2)), MARK(from(s(z0))))
   A__SEL(s(from(0)), cons(x1, x2)) -> c3(A__SEL(a__from(0), mark(x2)), MARK(from(0)))
   A__SEL(s(from(x0)), cons(x1, x2)) -> c3(MARK(from(x0)))
   A__SEL(s(from(x0)), cons(x1, s(z0))) -> c3(MARK(from(x0)))
   A__SEL(s(from(x0)), cons(x1, 0)) -> c3(MARK(from(x0)))
   A__SEL(s(sel(x0, from(z0))), cons(x2, x3)) -> c3(A__SEL(a__sel(mark(x0), a__from(mark(z0))), mark(x3)), MARK(sel(x0, from(z0))))
   A__SEL(s(sel(x0, sel(z0, z1))), cons(x2, x3)) -> c3(A__SEL(a__sel(mark(x0), a__sel(mark(z0), mark(z1))), mark(x3)), MARK(sel(x0, sel(z0, z1))))
   A__SEL(s(sel(x0, cons(z0, z1))), cons(x2, x3)) -> c3(A__SEL(a__sel(mark(x0), cons(mark(z0), z1)), mark(x3)), MARK(sel(x0, cons(z0, z1))))
   A__SEL(s(sel(x0, s(z0))), cons(x2, x3)) -> c3(A__SEL(a__sel(mark(x0), s(mark(z0))), mark(x3)), MARK(sel(x0, s(z0))))
   A__SEL(s(sel(x0, 0)), cons(x2, x3)) -> c3(A__SEL(a__sel(mark(x0), 0), mark(x3)), MARK(sel(x0, 0)))
   A__SEL(s(sel(from(z0), x1)), cons(x2, x3)) -> c3(A__SEL(a__sel(a__from(mark(z0)), mark(x1)), mark(x3)), MARK(sel(from(z0), x1)))
   A__SEL(s(sel(sel(z0, z1), x1)), cons(x2, x3)) -> c3(A__SEL(a__sel(a__sel(mark(z0), mark(z1)), mark(x1)), mark(x3)), MARK(sel(sel(z0, z1), x1)))
   A__SEL(s(sel(cons(z0, z1), x1)), cons(x2, x3)) -> c3(A__SEL(a__sel(cons(mark(z0), z1), mark(x1)), mark(x3)), MARK(sel(cons(z0, z1), x1)))
   A__SEL(s(sel(s(z0), x1)), cons(x2, x3)) -> c3(A__SEL(a__sel(s(mark(z0)), mark(x1)), mark(x3)), MARK(sel(s(z0), x1)))
   A__SEL(s(sel(0, x1)), cons(x2, x3)) -> c3(A__SEL(a__sel(0, mark(x1)), mark(x3)), MARK(sel(0, x1)))
   A__SEL(s(sel(x0, x1)), cons(x2, s(z0))) -> c3(MARK(sel(x0, x1)))
   A__SEL(s(sel(x0, x1)), cons(x2, 0)) -> c3(MARK(sel(x0, x1)))
   A__SEL(s(sel(x0, x1)), cons(x2, x3)) -> c3(MARK(sel(x0, x1)))
   A__SEL(s(s(x0)), cons(x1, s(z0))) -> c3(A__SEL(s(mark(x0)), s(mark(z0))), MARK(s(x0)))
   A__SEL(s(s(x0)), cons(x1, 0)) -> c3(A__SEL(s(mark(x0)), 0), MARK(s(x0)))
   A__SEL(s(s(from(z0))), cons(x1, x2)) -> c3(A__SEL(s(a__from(mark(z0))), mark(x2)), MARK(s(from(z0))))
   A__SEL(s(s(sel(z0, z1))), cons(x1, x2)) -> c3(A__SEL(s(a__sel(mark(z0), mark(z1))), mark(x2)), MARK(s(sel(z0, z1))))
   A__SEL(s(s(cons(z0, z1))), cons(x1, x2)) -> c3(A__SEL(s(cons(mark(z0), z1)), mark(x2)), MARK(s(cons(z0, z1))))
   A__SEL(s(s(s(z0))), cons(x1, x2)) -> c3(A__SEL(s(s(mark(z0))), mark(x2)), MARK(s(s(z0))))
   A__SEL(s(s(0)), cons(x1, x2)) -> c3(A__SEL(s(0), mark(x2)), MARK(s(0)))
   A__SEL(s(s(x0)), cons(x1, x2)) -> c3(MARK(s(x0)))
S tuples:
   A__FROM(z0) -> c(MARK(z0))
   A__SEL(0, cons(z0, z1)) -> c2(MARK(z0))
   MARK(from(z0)) -> c6(A__FROM(mark(z0)), MARK(z0))
   MARK(cons(z0, z1)) -> c9(MARK(z0))
   MARK(s(z0)) -> c10(MARK(z0))
   A__SEL(s(x0), cons(x1, s(z0))) -> c3(MARK(x0))
   A__SEL(s(x0), cons(x1, 0)) -> c3(MARK(x0))
   A__SEL(s(cons(z0, z1)), cons(x1, x2)) -> c3(MARK(cons(z0, z1)))
   A__SEL(s(0), cons(x1, x2)) -> c3(A__SEL(0, mark(x2)))
   A__SEL(s(x0), cons(x1, from(z0))) -> c4(A__SEL(mark(x0), a__from(mark(z0))), MARK(from(z0)))
   A__SEL(s(x0), cons(x1, sel(z0, z1))) -> c4(A__SEL(mark(x0), a__sel(mark(z0), mark(z1))), MARK(sel(z0, z1)))
   A__SEL(s(x0), cons(x1, cons(z0, z1))) -> c4(A__SEL(mark(x0), cons(mark(z0), z1)), MARK(cons(z0, z1)))
   A__SEL(s(from(z0)), cons(x1, x2)) -> c4(A__SEL(a__from(mark(z0)), mark(x2)), MARK(x2))
   A__SEL(s(sel(z0, z1)), cons(x1, x2)) -> c4(A__SEL(a__sel(mark(z0), mark(z1)), mark(x2)), MARK(x2))
   A__SEL(s(s(z0)), cons(x1, x2)) -> c4(A__SEL(s(mark(z0)), mark(x2)), MARK(x2))
   A__SEL(s(0), cons(x1, x2)) -> c4(A__SEL(0, mark(x2)), MARK(x2))
   A__SEL(s(x0), cons(x1, s(z0))) -> c4(MARK(s(z0)))
   A__SEL(s(cons(z0, z1)), cons(x1, x2)) -> c4(MARK(x2))
   MARK(sel(x0, from(z0))) -> c7(A__SEL(mark(x0), a__from(mark(z0))), MARK(x0))
   MARK(sel(x0, sel(z0, z1))) -> c7(A__SEL(mark(x0), a__sel(mark(z0), mark(z1))), MARK(x0))
   MARK(sel(x0, cons(z0, z1))) -> c7(A__SEL(mark(x0), cons(mark(z0), z1)), MARK(x0))
   MARK(sel(from(z0), x1)) -> c7(A__SEL(a__from(mark(z0)), mark(x1)), MARK(from(z0)))
   MARK(sel(sel(z0, z1), x1)) -> c7(A__SEL(a__sel(mark(z0), mark(z1)), mark(x1)), MARK(sel(z0, z1)))
   MARK(sel(s(z0), x1)) -> c7(A__SEL(s(mark(z0)), mark(x1)), MARK(s(z0)))
   MARK(sel(x0, s(z0))) -> c7(MARK(x0))
   MARK(sel(x0, 0)) -> c7(MARK(x0))
   MARK(sel(cons(z0, z1), x1)) -> c7(MARK(cons(z0, z1)))
   MARK(sel(0, x1)) -> c7(A__SEL(0, mark(x1)))
   MARK(sel(x0, from(z0))) -> c8(A__SEL(mark(x0), a__from(mark(z0))), MARK(from(z0)))
   MARK(sel(x0, sel(z0, z1))) -> c8(A__SEL(mark(x0), a__sel(mark(z0), mark(z1))), MARK(sel(z0, z1)))
   MARK(sel(x0, cons(z0, z1))) -> c8(A__SEL(mark(x0), cons(mark(z0), z1)), MARK(cons(z0, z1)))
   MARK(sel(from(z0), x1)) -> c8(A__SEL(a__from(mark(z0)), mark(x1)), MARK(x1))
   MARK(sel(sel(z0, z1), x1)) -> c8(A__SEL(a__sel(mark(z0), mark(z1)), mark(x1)), MARK(x1))
   MARK(sel(s(z0), x1)) -> c8(A__SEL(s(mark(z0)), mark(x1)), MARK(x1))
   MARK(sel(0, x1)) -> c8(A__SEL(0, mark(x1)), MARK(x1))
   MARK(sel(x0, s(z0))) -> c8(MARK(s(z0)))
   MARK(sel(cons(z0, z1), x1)) -> c8(MARK(x1))
   A__SEL(s(x0), cons(x1, from(x2))) -> c3(A__SEL(mark(x0), cons(mark(mark(x2)), from(s(mark(x2))))), MARK(x0))
   A__SEL(s(x0), cons(x1, from(from(z0)))) -> c3(A__SEL(mark(x0), a__from(a__from(mark(z0)))), MARK(x0))
   A__SEL(s(x0), cons(x1, from(sel(z0, z1)))) -> c3(A__SEL(mark(x0), a__from(a__sel(mark(z0), mark(z1)))), MARK(x0))
   A__SEL(s(x0), cons(x1, from(cons(z0, z1)))) -> c3(A__SEL(mark(x0), a__from(cons(mark(z0), z1))), MARK(x0))
   A__SEL(s(x0), cons(x1, from(s(z0)))) -> c3(A__SEL(mark(x0), a__from(s(mark(z0)))), MARK(x0))
   A__SEL(s(x0), cons(x1, from(0))) -> c3(A__SEL(mark(x0), a__from(0)), MARK(x0))
   A__SEL(s(from(z0)), cons(x1, from(x2))) -> c3(A__SEL(a__from(mark(z0)), a__from(mark(x2))), MARK(from(z0)))
   A__SEL(s(sel(z0, z1)), cons(x1, from(x2))) -> c3(A__SEL(a__sel(mark(z0), mark(z1)), a__from(mark(x2))), MARK(sel(z0, z1)))
   A__SEL(s(s(z0)), cons(x1, from(x2))) -> c3(A__SEL(s(mark(z0)), a__from(mark(x2))), MARK(s(z0)))
   A__SEL(s(x0), cons(x1, from(x2))) -> c3(MARK(x0))
   A__SEL(s(cons(z0, z1)), cons(x1, from(x2))) -> c3(MARK(cons(z0, z1)))
   A__SEL(s(0), cons(x1, from(x2))) -> c3(A__SEL(0, a__from(mark(x2))))
   A__SEL(s(x0), cons(x1, sel(x2, from(z0)))) -> c3(A__SEL(mark(x0), a__sel(mark(x2), a__from(mark(z0)))), MARK(x0))
   A__SEL(s(x0), cons(x1, sel(x2, sel(z0, z1)))) -> c3(A__SEL(mark(x0), a__sel(mark(x2), a__sel(mark(z0), mark(z1)))), MARK(x0))
   A__SEL(s(x0), cons(x1, sel(x2, cons(z0, z1)))) -> c3(A__SEL(mark(x0), a__sel(mark(x2), cons(mark(z0), z1))), MARK(x0))
   A__SEL(s(x0), cons(x1, sel(x2, s(z0)))) -> c3(A__SEL(mark(x0), a__sel(mark(x2), s(mark(z0)))), MARK(x0))
   A__SEL(s(x0), cons(x1, sel(x2, 0))) -> c3(A__SEL(mark(x0), a__sel(mark(x2), 0)), MARK(x0))
   A__SEL(s(x0), cons(x1, sel(from(z0), x3))) -> c3(A__SEL(mark(x0), a__sel(a__from(mark(z0)), mark(x3))), MARK(x0))
   A__SEL(s(x0), cons(x1, sel(sel(z0, z1), x3))) -> c3(A__SEL(mark(x0), a__sel(a__sel(mark(z0), mark(z1)), mark(x3))), MARK(x0))
   A__SEL(s(x0), cons(x1, sel(cons(z0, z1), x3))) -> c3(A__SEL(mark(x0), a__sel(cons(mark(z0), z1), mark(x3))), MARK(x0))
   A__SEL(s(x0), cons(x1, sel(s(z0), x3))) -> c3(A__SEL(mark(x0), a__sel(s(mark(z0)), mark(x3))), MARK(x0))
   A__SEL(s(x0), cons(x1, sel(0, x3))) -> c3(A__SEL(mark(x0), a__sel(0, mark(x3))), MARK(x0))
   A__SEL(s(from(z0)), cons(x1, sel(x2, x3))) -> c3(A__SEL(a__from(mark(z0)), a__sel(mark(x2), mark(x3))), MARK(from(z0)))
   A__SEL(s(sel(z0, z1)), cons(x1, sel(x2, x3))) -> c3(A__SEL(a__sel(mark(z0), mark(z1)), a__sel(mark(x2), mark(x3))), MARK(sel(z0, z1)))
   A__SEL(s(s(z0)), cons(x1, sel(x2, x3))) -> c3(A__SEL(s(mark(z0)), a__sel(mark(x2), mark(x3))), MARK(s(z0)))
   A__SEL(s(x0), cons(x1, sel(x2, x3))) -> c3(MARK(x0))
   A__SEL(s(cons(z0, z1)), cons(x1, sel(x2, x3))) -> c3(MARK(cons(z0, z1)))
   A__SEL(s(0), cons(x1, sel(x2, x3))) -> c3(A__SEL(0, a__sel(mark(x2), mark(x3))))
   A__SEL(s(x0), cons(x1, cons(from(z0), x3))) -> c3(A__SEL(mark(x0), cons(a__from(mark(z0)), x3)), MARK(x0))
   A__SEL(s(x0), cons(x1, cons(sel(z0, z1), x3))) -> c3(A__SEL(mark(x0), cons(a__sel(mark(z0), mark(z1)), x3)), MARK(x0))
   A__SEL(s(x0), cons(x1, cons(cons(z0, z1), x3))) -> c3(A__SEL(mark(x0), cons(cons(mark(z0), z1), x3)), MARK(x0))
   A__SEL(s(x0), cons(x1, cons(s(z0), x3))) -> c3(A__SEL(mark(x0), cons(s(mark(z0)), x3)), MARK(x0))
   A__SEL(s(x0), cons(x1, cons(0, x3))) -> c3(A__SEL(mark(x0), cons(0, x3)), MARK(x0))
   A__SEL(s(from(z0)), cons(x1, cons(x2, x3))) -> c3(A__SEL(a__from(mark(z0)), cons(mark(x2), x3)), MARK(from(z0)))
   A__SEL(s(sel(z0, z1)), cons(x1, cons(x2, x3))) -> c3(A__SEL(a__sel(mark(z0), mark(z1)), cons(mark(x2), x3)), MARK(sel(z0, z1)))
   A__SEL(s(s(z0)), cons(x1, cons(x2, x3))) -> c3(A__SEL(s(mark(z0)), cons(mark(x2), x3)), MARK(s(z0)))
   A__SEL(s(cons(z0, z1)), cons(x1, cons(x2, x3))) -> c3(MARK(cons(z0, z1)))
   A__SEL(s(0), cons(x1, cons(x2, x3))) -> c3(A__SEL(0, cons(mark(x2), x3)))
   A__SEL(s(from(from(z0))), cons(x1, x2)) -> c3(A__SEL(a__from(a__from(mark(z0))), mark(x2)), MARK(from(from(z0))))
   A__SEL(s(from(sel(z0, z1))), cons(x1, x2)) -> c3(A__SEL(a__from(a__sel(mark(z0), mark(z1))), mark(x2)), MARK(from(sel(z0, z1))))
   A__SEL(s(from(cons(z0, z1))), cons(x1, x2)) -> c3(A__SEL(a__from(cons(mark(z0), z1)), mark(x2)), MARK(from(cons(z0, z1))))
   A__SEL(s(from(s(z0))), cons(x1, x2)) -> c3(A__SEL(a__from(s(mark(z0))), mark(x2)), MARK(from(s(z0))))
   A__SEL(s(from(0)), cons(x1, x2)) -> c3(A__SEL(a__from(0), mark(x2)), MARK(from(0)))
   A__SEL(s(from(x0)), cons(x1, x2)) -> c3(MARK(from(x0)))
   A__SEL(s(from(x0)), cons(x1, s(z0))) -> c3(MARK(from(x0)))
   A__SEL(s(from(x0)), cons(x1, 0)) -> c3(MARK(from(x0)))
   A__SEL(s(sel(x0, from(z0))), cons(x2, x3)) -> c3(A__SEL(a__sel(mark(x0), a__from(mark(z0))), mark(x3)), MARK(sel(x0, from(z0))))
   A__SEL(s(sel(x0, sel(z0, z1))), cons(x2, x3)) -> c3(A__SEL(a__sel(mark(x0), a__sel(mark(z0), mark(z1))), mark(x3)), MARK(sel(x0, sel(z0, z1))))
   A__SEL(s(sel(x0, cons(z0, z1))), cons(x2, x3)) -> c3(A__SEL(a__sel(mark(x0), cons(mark(z0), z1)), mark(x3)), MARK(sel(x0, cons(z0, z1))))
   A__SEL(s(sel(x0, s(z0))), cons(x2, x3)) -> c3(A__SEL(a__sel(mark(x0), s(mark(z0))), mark(x3)), MARK(sel(x0, s(z0))))
   A__SEL(s(sel(x0, 0)), cons(x2, x3)) -> c3(A__SEL(a__sel(mark(x0), 0), mark(x3)), MARK(sel(x0, 0)))
   A__SEL(s(sel(from(z0), x1)), cons(x2, x3)) -> c3(A__SEL(a__sel(a__from(mark(z0)), mark(x1)), mark(x3)), MARK(sel(from(z0), x1)))
   A__SEL(s(sel(sel(z0, z1), x1)), cons(x2, x3)) -> c3(A__SEL(a__sel(a__sel(mark(z0), mark(z1)), mark(x1)), mark(x3)), MARK(sel(sel(z0, z1), x1)))
   A__SEL(s(sel(cons(z0, z1), x1)), cons(x2, x3)) -> c3(A__SEL(a__sel(cons(mark(z0), z1), mark(x1)), mark(x3)), MARK(sel(cons(z0, z1), x1)))
   A__SEL(s(sel(s(z0), x1)), cons(x2, x3)) -> c3(A__SEL(a__sel(s(mark(z0)), mark(x1)), mark(x3)), MARK(sel(s(z0), x1)))
   A__SEL(s(sel(0, x1)), cons(x2, x3)) -> c3(A__SEL(a__sel(0, mark(x1)), mark(x3)), MARK(sel(0, x1)))
   A__SEL(s(sel(x0, x1)), cons(x2, s(z0))) -> c3(MARK(sel(x0, x1)))
   A__SEL(s(sel(x0, x1)), cons(x2, 0)) -> c3(MARK(sel(x0, x1)))
   A__SEL(s(sel(x0, x1)), cons(x2, x3)) -> c3(MARK(sel(x0, x1)))
   A__SEL(s(s(x0)), cons(x1, s(z0))) -> c3(A__SEL(s(mark(x0)), s(mark(z0))), MARK(s(x0)))
   A__SEL(s(s(x0)), cons(x1, 0)) -> c3(A__SEL(s(mark(x0)), 0), MARK(s(x0)))
   A__SEL(s(s(from(z0))), cons(x1, x2)) -> c3(A__SEL(s(a__from(mark(z0))), mark(x2)), MARK(s(from(z0))))
   A__SEL(s(s(sel(z0, z1))), cons(x1, x2)) -> c3(A__SEL(s(a__sel(mark(z0), mark(z1))), mark(x2)), MARK(s(sel(z0, z1))))
   A__SEL(s(s(cons(z0, z1))), cons(x1, x2)) -> c3(A__SEL(s(cons(mark(z0), z1)), mark(x2)), MARK(s(cons(z0, z1))))
   A__SEL(s(s(s(z0))), cons(x1, x2)) -> c3(A__SEL(s(s(mark(z0))), mark(x2)), MARK(s(s(z0))))
   A__SEL(s(s(0)), cons(x1, x2)) -> c3(A__SEL(s(0), mark(x2)), MARK(s(0)))
   A__SEL(s(s(x0)), cons(x1, x2)) -> c3(MARK(s(x0)))
K tuples:none
Defined Rule Symbols:   a__from_1, a__sel_2, mark_1

Defined Pair Symbols:   A__FROM_1, A__SEL_2, MARK_1

Compound Symbols:   c_1, c2_1, c6_2, c9_1, c10_1, c3_1, c4_2, c4_1, c7_2, c7_1, c8_2, c8_1, c3_2


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

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

(100)
Obligation:
Complexity Dependency Tuples Problem

Rules:
   a__from(z0) -> cons(mark(z0), from(s(z0)))
   a__from(z0) -> from(z0)
   a__sel(0, cons(z0, z1)) -> mark(z0)
   a__sel(s(z0), cons(z1, z2)) -> a__sel(mark(z0), mark(z2))
   a__sel(z0, z1) -> sel(z0, z1)
   mark(from(z0)) -> a__from(mark(z0))
   mark(sel(z0, z1)) -> a__sel(mark(z0), mark(z1))
   mark(cons(z0, z1)) -> cons(mark(z0), z1)
   mark(s(z0)) -> s(mark(z0))
   mark(0) -> 0
Tuples:
   A__FROM(z0) -> c(MARK(z0))
   A__SEL(0, cons(z0, z1)) -> c2(MARK(z0))
   MARK(from(z0)) -> c6(A__FROM(mark(z0)), MARK(z0))
   MARK(cons(z0, z1)) -> c9(MARK(z0))
   MARK(s(z0)) -> c10(MARK(z0))
   A__SEL(s(x0), cons(x1, s(z0))) -> c3(MARK(x0))
   A__SEL(s(x0), cons(x1, 0)) -> c3(MARK(x0))
   A__SEL(s(cons(z0, z1)), cons(x1, x2)) -> c3(MARK(cons(z0, z1)))
   A__SEL(s(0), cons(x1, x2)) -> c3(A__SEL(0, mark(x2)))
   A__SEL(s(x0), cons(x1, from(z0))) -> c4(A__SEL(mark(x0), a__from(mark(z0))), MARK(from(z0)))
   A__SEL(s(x0), cons(x1, sel(z0, z1))) -> c4(A__SEL(mark(x0), a__sel(mark(z0), mark(z1))), MARK(sel(z0, z1)))
   A__SEL(s(x0), cons(x1, cons(z0, z1))) -> c4(A__SEL(mark(x0), cons(mark(z0), z1)), MARK(cons(z0, z1)))
   A__SEL(s(from(z0)), cons(x1, x2)) -> c4(A__SEL(a__from(mark(z0)), mark(x2)), MARK(x2))
   A__SEL(s(sel(z0, z1)), cons(x1, x2)) -> c4(A__SEL(a__sel(mark(z0), mark(z1)), mark(x2)), MARK(x2))
   A__SEL(s(s(z0)), cons(x1, x2)) -> c4(A__SEL(s(mark(z0)), mark(x2)), MARK(x2))
   A__SEL(s(0), cons(x1, x2)) -> c4(A__SEL(0, mark(x2)), MARK(x2))
   A__SEL(s(x0), cons(x1, s(z0))) -> c4(MARK(s(z0)))
   A__SEL(s(cons(z0, z1)), cons(x1, x2)) -> c4(MARK(x2))
   MARK(sel(x0, from(z0))) -> c7(A__SEL(mark(x0), a__from(mark(z0))), MARK(x0))
   MARK(sel(x0, sel(z0, z1))) -> c7(A__SEL(mark(x0), a__sel(mark(z0), mark(z1))), MARK(x0))
   MARK(sel(x0, cons(z0, z1))) -> c7(A__SEL(mark(x0), cons(mark(z0), z1)), MARK(x0))
   MARK(sel(from(z0), x1)) -> c7(A__SEL(a__from(mark(z0)), mark(x1)), MARK(from(z0)))
   MARK(sel(sel(z0, z1), x1)) -> c7(A__SEL(a__sel(mark(z0), mark(z1)), mark(x1)), MARK(sel(z0, z1)))
   MARK(sel(s(z0), x1)) -> c7(A__SEL(s(mark(z0)), mark(x1)), MARK(s(z0)))
   MARK(sel(x0, s(z0))) -> c7(MARK(x0))
   MARK(sel(x0, 0)) -> c7(MARK(x0))
   MARK(sel(cons(z0, z1), x1)) -> c7(MARK(cons(z0, z1)))
   MARK(sel(0, x1)) -> c7(A__SEL(0, mark(x1)))
   MARK(sel(x0, from(z0))) -> c8(A__SEL(mark(x0), a__from(mark(z0))), MARK(from(z0)))
   MARK(sel(x0, sel(z0, z1))) -> c8(A__SEL(mark(x0), a__sel(mark(z0), mark(z1))), MARK(sel(z0, z1)))
   MARK(sel(x0, cons(z0, z1))) -> c8(A__SEL(mark(x0), cons(mark(z0), z1)), MARK(cons(z0, z1)))
   MARK(sel(from(z0), x1)) -> c8(A__SEL(a__from(mark(z0)), mark(x1)), MARK(x1))
   MARK(sel(sel(z0, z1), x1)) -> c8(A__SEL(a__sel(mark(z0), mark(z1)), mark(x1)), MARK(x1))
   MARK(sel(s(z0), x1)) -> c8(A__SEL(s(mark(z0)), mark(x1)), MARK(x1))
   MARK(sel(0, x1)) -> c8(A__SEL(0, mark(x1)), MARK(x1))
   MARK(sel(x0, s(z0))) -> c8(MARK(s(z0)))
   MARK(sel(cons(z0, z1), x1)) -> c8(MARK(x1))
   A__SEL(s(x0), cons(x1, from(x2))) -> c3(A__SEL(mark(x0), cons(mark(mark(x2)), from(s(mark(x2))))), MARK(x0))
   A__SEL(s(x0), cons(x1, from(from(z0)))) -> c3(A__SEL(mark(x0), a__from(a__from(mark(z0)))), MARK(x0))
   A__SEL(s(x0), cons(x1, from(sel(z0, z1)))) -> c3(A__SEL(mark(x0), a__from(a__sel(mark(z0), mark(z1)))), MARK(x0))
   A__SEL(s(x0), cons(x1, from(cons(z0, z1)))) -> c3(A__SEL(mark(x0), a__from(cons(mark(z0), z1))), MARK(x0))
   A__SEL(s(x0), cons(x1, from(s(z0)))) -> c3(A__SEL(mark(x0), a__from(s(mark(z0)))), MARK(x0))
   A__SEL(s(x0), cons(x1, from(0))) -> c3(A__SEL(mark(x0), a__from(0)), MARK(x0))
   A__SEL(s(from(z0)), cons(x1, from(x2))) -> c3(A__SEL(a__from(mark(z0)), a__from(mark(x2))), MARK(from(z0)))
   A__SEL(s(sel(z0, z1)), cons(x1, from(x2))) -> c3(A__SEL(a__sel(mark(z0), mark(z1)), a__from(mark(x2))), MARK(sel(z0, z1)))
   A__SEL(s(s(z0)), cons(x1, from(x2))) -> c3(A__SEL(s(mark(z0)), a__from(mark(x2))), MARK(s(z0)))
   A__SEL(s(x0), cons(x1, from(x2))) -> c3(MARK(x0))
   A__SEL(s(cons(z0, z1)), cons(x1, from(x2))) -> c3(MARK(cons(z0, z1)))
   A__SEL(s(0), cons(x1, from(x2))) -> c3(A__SEL(0, a__from(mark(x2))))
   A__SEL(s(x0), cons(x1, sel(x2, from(z0)))) -> c3(A__SEL(mark(x0), a__sel(mark(x2), a__from(mark(z0)))), MARK(x0))
   A__SEL(s(x0), cons(x1, sel(x2, sel(z0, z1)))) -> c3(A__SEL(mark(x0), a__sel(mark(x2), a__sel(mark(z0), mark(z1)))), MARK(x0))
   A__SEL(s(x0), cons(x1, sel(x2, cons(z0, z1)))) -> c3(A__SEL(mark(x0), a__sel(mark(x2), cons(mark(z0), z1))), MARK(x0))
   A__SEL(s(x0), cons(x1, sel(x2, s(z0)))) -> c3(A__SEL(mark(x0), a__sel(mark(x2), s(mark(z0)))), MARK(x0))
   A__SEL(s(x0), cons(x1, sel(x2, 0))) -> c3(A__SEL(mark(x0), a__sel(mark(x2), 0)), MARK(x0))
   A__SEL(s(x0), cons(x1, sel(from(z0), x3))) -> c3(A__SEL(mark(x0), a__sel(a__from(mark(z0)), mark(x3))), MARK(x0))
   A__SEL(s(x0), cons(x1, sel(sel(z0, z1), x3))) -> c3(A__SEL(mark(x0), a__sel(a__sel(mark(z0), mark(z1)), mark(x3))), MARK(x0))
   A__SEL(s(x0), cons(x1, sel(cons(z0, z1), x3))) -> c3(A__SEL(mark(x0), a__sel(cons(mark(z0), z1), mark(x3))), MARK(x0))
   A__SEL(s(x0), cons(x1, sel(s(z0), x3))) -> c3(A__SEL(mark(x0), a__sel(s(mark(z0)), mark(x3))), MARK(x0))
   A__SEL(s(x0), cons(x1, sel(0, x3))) -> c3(A__SEL(mark(x0), a__sel(0, mark(x3))), MARK(x0))
   A__SEL(s(from(z0)), cons(x1, sel(x2, x3))) -> c3(A__SEL(a__from(mark(z0)), a__sel(mark(x2), mark(x3))), MARK(from(z0)))
   A__SEL(s(sel(z0, z1)), cons(x1, sel(x2, x3))) -> c3(A__SEL(a__sel(mark(z0), mark(z1)), a__sel(mark(x2), mark(x3))), MARK(sel(z0, z1)))
   A__SEL(s(s(z0)), cons(x1, sel(x2, x3))) -> c3(A__SEL(s(mark(z0)), a__sel(mark(x2), mark(x3))), MARK(s(z0)))
   A__SEL(s(x0), cons(x1, sel(x2, x3))) -> c3(MARK(x0))
   A__SEL(s(cons(z0, z1)), cons(x1, sel(x2, x3))) -> c3(MARK(cons(z0, z1)))
   A__SEL(s(0), cons(x1, sel(x2, x3))) -> c3(A__SEL(0, a__sel(mark(x2), mark(x3))))
   A__SEL(s(x0), cons(x1, cons(from(z0), x3))) -> c3(A__SEL(mark(x0), cons(a__from(mark(z0)), x3)), MARK(x0))
   A__SEL(s(x0), cons(x1, cons(sel(z0, z1), x3))) -> c3(A__SEL(mark(x0), cons(a__sel(mark(z0), mark(z1)), x3)), MARK(x0))
   A__SEL(s(x0), cons(x1, cons(cons(z0, z1), x3))) -> c3(A__SEL(mark(x0), cons(cons(mark(z0), z1), x3)), MARK(x0))
   A__SEL(s(x0), cons(x1, cons(s(z0), x3))) -> c3(A__SEL(mark(x0), cons(s(mark(z0)), x3)), MARK(x0))
   A__SEL(s(x0), cons(x1, cons(0, x3))) -> c3(A__SEL(mark(x0), cons(0, x3)), MARK(x0))
   A__SEL(s(from(z0)), cons(x1, cons(x2, x3))) -> c3(A__SEL(a__from(mark(z0)), cons(mark(x2), x3)), MARK(from(z0)))
   A__SEL(s(sel(z0, z1)), cons(x1, cons(x2, x3))) -> c3(A__SEL(a__sel(mark(z0), mark(z1)), cons(mark(x2), x3)), MARK(sel(z0, z1)))
   A__SEL(s(s(z0)), cons(x1, cons(x2, x3))) -> c3(A__SEL(s(mark(z0)), cons(mark(x2), x3)), MARK(s(z0)))
   A__SEL(s(cons(z0, z1)), cons(x1, cons(x2, x3))) -> c3(MARK(cons(z0, z1)))
   A__SEL(s(0), cons(x1, cons(x2, x3))) -> c3(A__SEL(0, cons(mark(x2), x3)))
   A__SEL(s(from(from(z0))), cons(x1, x2)) -> c3(A__SEL(a__from(a__from(mark(z0))), mark(x2)), MARK(from(from(z0))))
   A__SEL(s(from(sel(z0, z1))), cons(x1, x2)) -> c3(A__SEL(a__from(a__sel(mark(z0), mark(z1))), mark(x2)), MARK(from(sel(z0, z1))))
   A__SEL(s(from(cons(z0, z1))), cons(x1, x2)) -> c3(A__SEL(a__from(cons(mark(z0), z1)), mark(x2)), MARK(from(cons(z0, z1))))
   A__SEL(s(from(s(z0))), cons(x1, x2)) -> c3(A__SEL(a__from(s(mark(z0))), mark(x2)), MARK(from(s(z0))))
   A__SEL(s(from(0)), cons(x1, x2)) -> c3(A__SEL(a__from(0), mark(x2)), MARK(from(0)))
   A__SEL(s(from(x0)), cons(x1, x2)) -> c3(MARK(from(x0)))
   A__SEL(s(from(x0)), cons(x1, s(z0))) -> c3(MARK(from(x0)))
   A__SEL(s(from(x0)), cons(x1, 0)) -> c3(MARK(from(x0)))
   A__SEL(s(sel(x0, from(z0))), cons(x2, x3)) -> c3(A__SEL(a__sel(mark(x0), a__from(mark(z0))), mark(x3)), MARK(sel(x0, from(z0))))
   A__SEL(s(sel(x0, sel(z0, z1))), cons(x2, x3)) -> c3(A__SEL(a__sel(mark(x0), a__sel(mark(z0), mark(z1))), mark(x3)), MARK(sel(x0, sel(z0, z1))))
   A__SEL(s(sel(x0, cons(z0, z1))), cons(x2, x3)) -> c3(A__SEL(a__sel(mark(x0), cons(mark(z0), z1)), mark(x3)), MARK(sel(x0, cons(z0, z1))))
   A__SEL(s(sel(x0, s(z0))), cons(x2, x3)) -> c3(A__SEL(a__sel(mark(x0), s(mark(z0))), mark(x3)), MARK(sel(x0, s(z0))))
   A__SEL(s(sel(x0, 0)), cons(x2, x3)) -> c3(A__SEL(a__sel(mark(x0), 0), mark(x3)), MARK(sel(x0, 0)))
   A__SEL(s(sel(from(z0), x1)), cons(x2, x3)) -> c3(A__SEL(a__sel(a__from(mark(z0)), mark(x1)), mark(x3)), MARK(sel(from(z0), x1)))
   A__SEL(s(sel(sel(z0, z1), x1)), cons(x2, x3)) -> c3(A__SEL(a__sel(a__sel(mark(z0), mark(z1)), mark(x1)), mark(x3)), MARK(sel(sel(z0, z1), x1)))
   A__SEL(s(sel(cons(z0, z1), x1)), cons(x2, x3)) -> c3(A__SEL(a__sel(cons(mark(z0), z1), mark(x1)), mark(x3)), MARK(sel(cons(z0, z1), x1)))
   A__SEL(s(sel(s(z0), x1)), cons(x2, x3)) -> c3(A__SEL(a__sel(s(mark(z0)), mark(x1)), mark(x3)), MARK(sel(s(z0), x1)))
   A__SEL(s(sel(0, x1)), cons(x2, x3)) -> c3(A__SEL(a__sel(0, mark(x1)), mark(x3)), MARK(sel(0, x1)))
   A__SEL(s(sel(x0, x1)), cons(x2, s(z0))) -> c3(MARK(sel(x0, x1)))
   A__SEL(s(sel(x0, x1)), cons(x2, 0)) -> c3(MARK(sel(x0, x1)))
   A__SEL(s(sel(x0, x1)), cons(x2, x3)) -> c3(MARK(sel(x0, x1)))
   A__SEL(s(s(from(z0))), cons(x1, x2)) -> c3(A__SEL(s(a__from(mark(z0))), mark(x2)), MARK(s(from(z0))))
   A__SEL(s(s(sel(z0, z1))), cons(x1, x2)) -> c3(A__SEL(s(a__sel(mark(z0), mark(z1))), mark(x2)), MARK(s(sel(z0, z1))))
   A__SEL(s(s(cons(z0, z1))), cons(x1, x2)) -> c3(A__SEL(s(cons(mark(z0), z1)), mark(x2)), MARK(s(cons(z0, z1))))
   A__SEL(s(s(s(z0))), cons(x1, x2)) -> c3(A__SEL(s(s(mark(z0))), mark(x2)), MARK(s(s(z0))))
   A__SEL(s(s(0)), cons(x1, x2)) -> c3(A__SEL(s(0), mark(x2)), MARK(s(0)))
   A__SEL(s(s(x0)), cons(x1, x2)) -> c3(MARK(s(x0)))
   A__SEL(s(s(x0)), cons(x1, s(z0))) -> c3(MARK(s(x0)))
   A__SEL(s(s(x0)), cons(x1, 0)) -> c3(MARK(s(x0)))
S tuples:
   A__FROM(z0) -> c(MARK(z0))
   A__SEL(0, cons(z0, z1)) -> c2(MARK(z0))
   MARK(from(z0)) -> c6(A__FROM(mark(z0)), MARK(z0))
   MARK(cons(z0, z1)) -> c9(MARK(z0))
   MARK(s(z0)) -> c10(MARK(z0))
   A__SEL(s(x0), cons(x1, s(z0))) -> c3(MARK(x0))
   A__SEL(s(x0), cons(x1, 0)) -> c3(MARK(x0))
   A__SEL(s(cons(z0, z1)), cons(x1, x2)) -> c3(MARK(cons(z0, z1)))
   A__SEL(s(0), cons(x1, x2)) -> c3(A__SEL(0, mark(x2)))
   A__SEL(s(x0), cons(x1, from(z0))) -> c4(A__SEL(mark(x0), a__from(mark(z0))), MARK(from(z0)))
   A__SEL(s(x0), cons(x1, sel(z0, z1))) -> c4(A__SEL(mark(x0), a__sel(mark(z0), mark(z1))), MARK(sel(z0, z1)))
   A__SEL(s(x0), cons(x1, cons(z0, z1))) -> c4(A__SEL(mark(x0), cons(mark(z0), z1)), MARK(cons(z0, z1)))
   A__SEL(s(from(z0)), cons(x1, x2)) -> c4(A__SEL(a__from(mark(z0)), mark(x2)), MARK(x2))
   A__SEL(s(sel(z0, z1)), cons(x1, x2)) -> c4(A__SEL(a__sel(mark(z0), mark(z1)), mark(x2)), MARK(x2))
   A__SEL(s(s(z0)), cons(x1, x2)) -> c4(A__SEL(s(mark(z0)), mark(x2)), MARK(x2))
   A__SEL(s(0), cons(x1, x2)) -> c4(A__SEL(0, mark(x2)), MARK(x2))
   A__SEL(s(x0), cons(x1, s(z0))) -> c4(MARK(s(z0)))
   A__SEL(s(cons(z0, z1)), cons(x1, x2)) -> c4(MARK(x2))
   MARK(sel(x0, from(z0))) -> c7(A__SEL(mark(x0), a__from(mark(z0))), MARK(x0))
   MARK(sel(x0, sel(z0, z1))) -> c7(A__SEL(mark(x0), a__sel(mark(z0), mark(z1))), MARK(x0))
   MARK(sel(x0, cons(z0, z1))) -> c7(A__SEL(mark(x0), cons(mark(z0), z1)), MARK(x0))
   MARK(sel(from(z0), x1)) -> c7(A__SEL(a__from(mark(z0)), mark(x1)), MARK(from(z0)))
   MARK(sel(sel(z0, z1), x1)) -> c7(A__SEL(a__sel(mark(z0), mark(z1)), mark(x1)), MARK(sel(z0, z1)))
   MARK(sel(s(z0), x1)) -> c7(A__SEL(s(mark(z0)), mark(x1)), MARK(s(z0)))
   MARK(sel(x0, s(z0))) -> c7(MARK(x0))
   MARK(sel(x0, 0)) -> c7(MARK(x0))
   MARK(sel(cons(z0, z1), x1)) -> c7(MARK(cons(z0, z1)))
   MARK(sel(0, x1)) -> c7(A__SEL(0, mark(x1)))
   MARK(sel(x0, from(z0))) -> c8(A__SEL(mark(x0), a__from(mark(z0))), MARK(from(z0)))
   MARK(sel(x0, sel(z0, z1))) -> c8(A__SEL(mark(x0), a__sel(mark(z0), mark(z1))), MARK(sel(z0, z1)))
   MARK(sel(x0, cons(z0, z1))) -> c8(A__SEL(mark(x0), cons(mark(z0), z1)), MARK(cons(z0, z1)))
   MARK(sel(from(z0), x1)) -> c8(A__SEL(a__from(mark(z0)), mark(x1)), MARK(x1))
   MARK(sel(sel(z0, z1), x1)) -> c8(A__SEL(a__sel(mark(z0), mark(z1)), mark(x1)), MARK(x1))
   MARK(sel(s(z0), x1)) -> c8(A__SEL(s(mark(z0)), mark(x1)), MARK(x1))
   MARK(sel(0, x1)) -> c8(A__SEL(0, mark(x1)), MARK(x1))
   MARK(sel(x0, s(z0))) -> c8(MARK(s(z0)))
   MARK(sel(cons(z0, z1), x1)) -> c8(MARK(x1))
   A__SEL(s(x0), cons(x1, from(x2))) -> c3(A__SEL(mark(x0), cons(mark(mark(x2)), from(s(mark(x2))))), MARK(x0))
   A__SEL(s(x0), cons(x1, from(from(z0)))) -> c3(A__SEL(mark(x0), a__from(a__from(mark(z0)))), MARK(x0))
   A__SEL(s(x0), cons(x1, from(sel(z0, z1)))) -> c3(A__SEL(mark(x0), a__from(a__sel(mark(z0), mark(z1)))), MARK(x0))
   A__SEL(s(x0), cons(x1, from(cons(z0, z1)))) -> c3(A__SEL(mark(x0), a__from(cons(mark(z0), z1))), MARK(x0))
   A__SEL(s(x0), cons(x1, from(s(z0)))) -> c3(A__SEL(mark(x0), a__from(s(mark(z0)))), MARK(x0))
   A__SEL(s(x0), cons(x1, from(0))) -> c3(A__SEL(mark(x0), a__from(0)), MARK(x0))
   A__SEL(s(from(z0)), cons(x1, from(x2))) -> c3(A__SEL(a__from(mark(z0)), a__from(mark(x2))), MARK(from(z0)))
   A__SEL(s(sel(z0, z1)), cons(x1, from(x2))) -> c3(A__SEL(a__sel(mark(z0), mark(z1)), a__from(mark(x2))), MARK(sel(z0, z1)))
   A__SEL(s(s(z0)), cons(x1, from(x2))) -> c3(A__SEL(s(mark(z0)), a__from(mark(x2))), MARK(s(z0)))
   A__SEL(s(x0), cons(x1, from(x2))) -> c3(MARK(x0))
   A__SEL(s(cons(z0, z1)), cons(x1, from(x2))) -> c3(MARK(cons(z0, z1)))
   A__SEL(s(0), cons(x1, from(x2))) -> c3(A__SEL(0, a__from(mark(x2))))
   A__SEL(s(x0), cons(x1, sel(x2, from(z0)))) -> c3(A__SEL(mark(x0), a__sel(mark(x2), a__from(mark(z0)))), MARK(x0))
   A__SEL(s(x0), cons(x1, sel(x2, sel(z0, z1)))) -> c3(A__SEL(mark(x0), a__sel(mark(x2), a__sel(mark(z0), mark(z1)))), MARK(x0))
   A__SEL(s(x0), cons(x1, sel(x2, cons(z0, z1)))) -> c3(A__SEL(mark(x0), a__sel(mark(x2), cons(mark(z0), z1))), MARK(x0))
   A__SEL(s(x0), cons(x1, sel(x2, s(z0)))) -> c3(A__SEL(mark(x0), a__sel(mark(x2), s(mark(z0)))), MARK(x0))
   A__SEL(s(x0), cons(x1, sel(x2, 0))) -> c3(A__SEL(mark(x0), a__sel(mark(x2), 0)), MARK(x0))
   A__SEL(s(x0), cons(x1, sel(from(z0), x3))) -> c3(A__SEL(mark(x0), a__sel(a__from(mark(z0)), mark(x3))), MARK(x0))
   A__SEL(s(x0), cons(x1, sel(sel(z0, z1), x3))) -> c3(A__SEL(mark(x0), a__sel(a__sel(mark(z0), mark(z1)), mark(x3))), MARK(x0))
   A__SEL(s(x0), cons(x1, sel(cons(z0, z1), x3))) -> c3(A__SEL(mark(x0), a__sel(cons(mark(z0), z1), mark(x3))), MARK(x0))
   A__SEL(s(x0), cons(x1, sel(s(z0), x3))) -> c3(A__SEL(mark(x0), a__sel(s(mark(z0)), mark(x3))), MARK(x0))
   A__SEL(s(x0), cons(x1, sel(0, x3))) -> c3(A__SEL(mark(x0), a__sel(0, mark(x3))), MARK(x0))
   A__SEL(s(from(z0)), cons(x1, sel(x2, x3))) -> c3(A__SEL(a__from(mark(z0)), a__sel(mark(x2), mark(x3))), MARK(from(z0)))
   A__SEL(s(sel(z0, z1)), cons(x1, sel(x2, x3))) -> c3(A__SEL(a__sel(mark(z0), mark(z1)), a__sel(mark(x2), mark(x3))), MARK(sel(z0, z1)))
   A__SEL(s(s(z0)), cons(x1, sel(x2, x3))) -> c3(A__SEL(s(mark(z0)), a__sel(mark(x2), mark(x3))), MARK(s(z0)))
   A__SEL(s(x0), cons(x1, sel(x2, x3))) -> c3(MARK(x0))
   A__SEL(s(cons(z0, z1)), cons(x1, sel(x2, x3))) -> c3(MARK(cons(z0, z1)))
   A__SEL(s(0), cons(x1, sel(x2, x3))) -> c3(A__SEL(0, a__sel(mark(x2), mark(x3))))
   A__SEL(s(x0), cons(x1, cons(from(z0), x3))) -> c3(A__SEL(mark(x0), cons(a__from(mark(z0)), x3)), MARK(x0))
   A__SEL(s(x0), cons(x1, cons(sel(z0, z1), x3))) -> c3(A__SEL(mark(x0), cons(a__sel(mark(z0), mark(z1)), x3)), MARK(x0))
   A__SEL(s(x0), cons(x1, cons(cons(z0, z1), x3))) -> c3(A__SEL(mark(x0), cons(cons(mark(z0), z1), x3)), MARK(x0))
   A__SEL(s(x0), cons(x1, cons(s(z0), x3))) -> c3(A__SEL(mark(x0), cons(s(mark(z0)), x3)), MARK(x0))
   A__SEL(s(x0), cons(x1, cons(0, x3))) -> c3(A__SEL(mark(x0), cons(0, x3)), MARK(x0))
   A__SEL(s(from(z0)), cons(x1, cons(x2, x3))) -> c3(A__SEL(a__from(mark(z0)), cons(mark(x2), x3)), MARK(from(z0)))
   A__SEL(s(sel(z0, z1)), cons(x1, cons(x2, x3))) -> c3(A__SEL(a__sel(mark(z0), mark(z1)), cons(mark(x2), x3)), MARK(sel(z0, z1)))
   A__SEL(s(s(z0)), cons(x1, cons(x2, x3))) -> c3(A__SEL(s(mark(z0)), cons(mark(x2), x3)), MARK(s(z0)))
   A__SEL(s(cons(z0, z1)), cons(x1, cons(x2, x3))) -> c3(MARK(cons(z0, z1)))
   A__SEL(s(0), cons(x1, cons(x2, x3))) -> c3(A__SEL(0, cons(mark(x2), x3)))
   A__SEL(s(from(from(z0))), cons(x1, x2)) -> c3(A__SEL(a__from(a__from(mark(z0))), mark(x2)), MARK(from(from(z0))))
   A__SEL(s(from(sel(z0, z1))), cons(x1, x2)) -> c3(A__SEL(a__from(a__sel(mark(z0), mark(z1))), mark(x2)), MARK(from(sel(z0, z1))))
   A__SEL(s(from(cons(z0, z1))), cons(x1, x2)) -> c3(A__SEL(a__from(cons(mark(z0), z1)), mark(x2)), MARK(from(cons(z0, z1))))
   A__SEL(s(from(s(z0))), cons(x1, x2)) -> c3(A__SEL(a__from(s(mark(z0))), mark(x2)), MARK(from(s(z0))))
   A__SEL(s(from(0)), cons(x1, x2)) -> c3(A__SEL(a__from(0), mark(x2)), MARK(from(0)))
   A__SEL(s(from(x0)), cons(x1, x2)) -> c3(MARK(from(x0)))
   A__SEL(s(from(x0)), cons(x1, s(z0))) -> c3(MARK(from(x0)))
   A__SEL(s(from(x0)), cons(x1, 0)) -> c3(MARK(from(x0)))
   A__SEL(s(sel(x0, from(z0))), cons(x2, x3)) -> c3(A__SEL(a__sel(mark(x0), a__from(mark(z0))), mark(x3)), MARK(sel(x0, from(z0))))
   A__SEL(s(sel(x0, sel(z0, z1))), cons(x2, x3)) -> c3(A__SEL(a__sel(mark(x0), a__sel(mark(z0), mark(z1))), mark(x3)), MARK(sel(x0, sel(z0, z1))))
   A__SEL(s(sel(x0, cons(z0, z1))), cons(x2, x3)) -> c3(A__SEL(a__sel(mark(x0), cons(mark(z0), z1)), mark(x3)), MARK(sel(x0, cons(z0, z1))))
   A__SEL(s(sel(x0, s(z0))), cons(x2, x3)) -> c3(A__SEL(a__sel(mark(x0), s(mark(z0))), mark(x3)), MARK(sel(x0, s(z0))))
   A__SEL(s(sel(x0, 0)), cons(x2, x3)) -> c3(A__SEL(a__sel(mark(x0), 0), mark(x3)), MARK(sel(x0, 0)))
   A__SEL(s(sel(from(z0), x1)), cons(x2, x3)) -> c3(A__SEL(a__sel(a__from(mark(z0)), mark(x1)), mark(x3)), MARK(sel(from(z0), x1)))
   A__SEL(s(sel(sel(z0, z1), x1)), cons(x2, x3)) -> c3(A__SEL(a__sel(a__sel(mark(z0), mark(z1)), mark(x1)), mark(x3)), MARK(sel(sel(z0, z1), x1)))
   A__SEL(s(sel(cons(z0, z1), x1)), cons(x2, x3)) -> c3(A__SEL(a__sel(cons(mark(z0), z1), mark(x1)), mark(x3)), MARK(sel(cons(z0, z1), x1)))
   A__SEL(s(sel(s(z0), x1)), cons(x2, x3)) -> c3(A__SEL(a__sel(s(mark(z0)), mark(x1)), mark(x3)), MARK(sel(s(z0), x1)))
   A__SEL(s(sel(0, x1)), cons(x2, x3)) -> c3(A__SEL(a__sel(0, mark(x1)), mark(x3)), MARK(sel(0, x1)))
   A__SEL(s(sel(x0, x1)), cons(x2, s(z0))) -> c3(MARK(sel(x0, x1)))
   A__SEL(s(sel(x0, x1)), cons(x2, 0)) -> c3(MARK(sel(x0, x1)))
   A__SEL(s(sel(x0, x1)), cons(x2, x3)) -> c3(MARK(sel(x0, x1)))
   A__SEL(s(s(from(z0))), cons(x1, x2)) -> c3(A__SEL(s(a__from(mark(z0))), mark(x2)), MARK(s(from(z0))))
   A__SEL(s(s(sel(z0, z1))), cons(x1, x2)) -> c3(A__SEL(s(a__sel(mark(z0), mark(z1))), mark(x2)), MARK(s(sel(z0, z1))))
   A__SEL(s(s(cons(z0, z1))), cons(x1, x2)) -> c3(A__SEL(s(cons(mark(z0), z1)), mark(x2)), MARK(s(cons(z0, z1))))
   A__SEL(s(s(s(z0))), cons(x1, x2)) -> c3(A__SEL(s(s(mark(z0))), mark(x2)), MARK(s(s(z0))))
   A__SEL(s(s(0)), cons(x1, x2)) -> c3(A__SEL(s(0), mark(x2)), MARK(s(0)))
   A__SEL(s(s(x0)), cons(x1, x2)) -> c3(MARK(s(x0)))
   A__SEL(s(s(x0)), cons(x1, s(z0))) -> c3(MARK(s(x0)))
   A__SEL(s(s(x0)), cons(x1, 0)) -> c3(MARK(s(x0)))
K tuples:none
Defined Rule Symbols:   a__from_1, a__sel_2, mark_1

Defined Pair Symbols:   A__FROM_1, A__SEL_2, MARK_1

Compound Symbols:   c_1, c2_1, c6_2, c9_1, c10_1, c3_1, c4_2, c4_1, c7_2, c7_1, c8_2, c8_1, c3_2


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

(101) CdtNarrowingProof (BOTH BOUNDS(ID, ID))
Use narrowing to replace A__SEL(s(0), cons(x1, x2)) -> c3(A__SEL(0, mark(x2))) by 
   A__SEL(s(0), cons(x0, from(z0))) -> c3(A__SEL(0, a__from(mark(z0))))
   A__SEL(s(0), cons(x0, sel(z0, z1))) -> c3(A__SEL(0, a__sel(mark(z0), mark(z1))))
   A__SEL(s(0), cons(x0, cons(z0, z1))) -> c3(A__SEL(0, cons(mark(z0), z1)))
   A__SEL(s(0), cons(x0, s(z0))) -> c3(A__SEL(0, s(mark(z0))))
   A__SEL(s(0), cons(x0, 0)) -> c3(A__SEL(0, 0))

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

(102)
Obligation:
Complexity Dependency Tuples Problem

Rules:
   a__from(z0) -> cons(mark(z0), from(s(z0)))
   a__from(z0) -> from(z0)
   a__sel(0, cons(z0, z1)) -> mark(z0)
   a__sel(s(z0), cons(z1, z2)) -> a__sel(mark(z0), mark(z2))
   a__sel(z0, z1) -> sel(z0, z1)
   mark(from(z0)) -> a__from(mark(z0))
   mark(sel(z0, z1)) -> a__sel(mark(z0), mark(z1))
   mark(cons(z0, z1)) -> cons(mark(z0), z1)
   mark(s(z0)) -> s(mark(z0))
   mark(0) -> 0
Tuples:
   A__FROM(z0) -> c(MARK(z0))
   A__SEL(0, cons(z0, z1)) -> c2(MARK(z0))
   MARK(from(z0)) -> c6(A__FROM(mark(z0)), MARK(z0))
   MARK(cons(z0, z1)) -> c9(MARK(z0))
   MARK(s(z0)) -> c10(MARK(z0))
   A__SEL(s(x0), cons(x1, s(z0))) -> c3(MARK(x0))
   A__SEL(s(x0), cons(x1, 0)) -> c3(MARK(x0))
   A__SEL(s(cons(z0, z1)), cons(x1, x2)) -> c3(MARK(cons(z0, z1)))
   A__SEL(s(x0), cons(x1, from(z0))) -> c4(A__SEL(mark(x0), a__from(mark(z0))), MARK(from(z0)))
   A__SEL(s(x0), cons(x1, sel(z0, z1))) -> c4(A__SEL(mark(x0), a__sel(mark(z0), mark(z1))), MARK(sel(z0, z1)))
   A__SEL(s(x0), cons(x1, cons(z0, z1))) -> c4(A__SEL(mark(x0), cons(mark(z0), z1)), MARK(cons(z0, z1)))
   A__SEL(s(from(z0)), cons(x1, x2)) -> c4(A__SEL(a__from(mark(z0)), mark(x2)), MARK(x2))
   A__SEL(s(sel(z0, z1)), cons(x1, x2)) -> c4(A__SEL(a__sel(mark(z0), mark(z1)), mark(x2)), MARK(x2))
   A__SEL(s(s(z0)), cons(x1, x2)) -> c4(A__SEL(s(mark(z0)), mark(x2)), MARK(x2))
   A__SEL(s(0), cons(x1, x2)) -> c4(A__SEL(0, mark(x2)), MARK(x2))
   A__SEL(s(x0), cons(x1, s(z0))) -> c4(MARK(s(z0)))
   A__SEL(s(cons(z0, z1)), cons(x1, x2)) -> c4(MARK(x2))
   MARK(sel(x0, from(z0))) -> c7(A__SEL(mark(x0), a__from(mark(z0))), MARK(x0))
   MARK(sel(x0, sel(z0, z1))) -> c7(A__SEL(mark(x0), a__sel(mark(z0), mark(z1))), MARK(x0))
   MARK(sel(x0, cons(z0, z1))) -> c7(A__SEL(mark(x0), cons(mark(z0), z1)), MARK(x0))
   MARK(sel(from(z0), x1)) -> c7(A__SEL(a__from(mark(z0)), mark(x1)), MARK(from(z0)))
   MARK(sel(sel(z0, z1), x1)) -> c7(A__SEL(a__sel(mark(z0), mark(z1)), mark(x1)), MARK(sel(z0, z1)))
   MARK(sel(s(z0), x1)) -> c7(A__SEL(s(mark(z0)), mark(x1)), MARK(s(z0)))
   MARK(sel(x0, s(z0))) -> c7(MARK(x0))
   MARK(sel(x0, 0)) -> c7(MARK(x0))
   MARK(sel(cons(z0, z1), x1)) -> c7(MARK(cons(z0, z1)))
   MARK(sel(0, x1)) -> c7(A__SEL(0, mark(x1)))
   MARK(sel(x0, from(z0))) -> c8(A__SEL(mark(x0), a__from(mark(z0))), MARK(from(z0)))
   MARK(sel(x0, sel(z0, z1))) -> c8(A__SEL(mark(x0), a__sel(mark(z0), mark(z1))), MARK(sel(z0, z1)))
   MARK(sel(x0, cons(z0, z1))) -> c8(A__SEL(mark(x0), cons(mark(z0), z1)), MARK(cons(z0, z1)))
   MARK(sel(from(z0), x1)) -> c8(A__SEL(a__from(mark(z0)), mark(x1)), MARK(x1))
   MARK(sel(sel(z0, z1), x1)) -> c8(A__SEL(a__sel(mark(z0), mark(z1)), mark(x1)), MARK(x1))
   MARK(sel(s(z0), x1)) -> c8(A__SEL(s(mark(z0)), mark(x1)), MARK(x1))
   MARK(sel(0, x1)) -> c8(A__SEL(0, mark(x1)), MARK(x1))
   MARK(sel(x0, s(z0))) -> c8(MARK(s(z0)))
   MARK(sel(cons(z0, z1), x1)) -> c8(MARK(x1))
   A__SEL(s(x0), cons(x1, from(x2))) -> c3(A__SEL(mark(x0), cons(mark(mark(x2)), from(s(mark(x2))))), MARK(x0))
   A__SEL(s(x0), cons(x1, from(from(z0)))) -> c3(A__SEL(mark(x0), a__from(a__from(mark(z0)))), MARK(x0))
   A__SEL(s(x0), cons(x1, from(sel(z0, z1)))) -> c3(A__SEL(mark(x0), a__from(a__sel(mark(z0), mark(z1)))), MARK(x0))
   A__SEL(s(x0), cons(x1, from(cons(z0, z1)))) -> c3(A__SEL(mark(x0), a__from(cons(mark(z0), z1))), MARK(x0))
   A__SEL(s(x0), cons(x1, from(s(z0)))) -> c3(A__SEL(mark(x0), a__from(s(mark(z0)))), MARK(x0))
   A__SEL(s(x0), cons(x1, from(0))) -> c3(A__SEL(mark(x0), a__from(0)), MARK(x0))
   A__SEL(s(from(z0)), cons(x1, from(x2))) -> c3(A__SEL(a__from(mark(z0)), a__from(mark(x2))), MARK(from(z0)))
   A__SEL(s(sel(z0, z1)), cons(x1, from(x2))) -> c3(A__SEL(a__sel(mark(z0), mark(z1)), a__from(mark(x2))), MARK(sel(z0, z1)))
   A__SEL(s(s(z0)), cons(x1, from(x2))) -> c3(A__SEL(s(mark(z0)), a__from(mark(x2))), MARK(s(z0)))
   A__SEL(s(x0), cons(x1, from(x2))) -> c3(MARK(x0))
   A__SEL(s(cons(z0, z1)), cons(x1, from(x2))) -> c3(MARK(cons(z0, z1)))
   A__SEL(s(0), cons(x1, from(x2))) -> c3(A__SEL(0, a__from(mark(x2))))
   A__SEL(s(x0), cons(x1, sel(x2, from(z0)))) -> c3(A__SEL(mark(x0), a__sel(mark(x2), a__from(mark(z0)))), MARK(x0))
   A__SEL(s(x0), cons(x1, sel(x2, sel(z0, z1)))) -> c3(A__SEL(mark(x0), a__sel(mark(x2), a__sel(mark(z0), mark(z1)))), MARK(x0))
   A__SEL(s(x0), cons(x1, sel(x2, cons(z0, z1)))) -> c3(A__SEL(mark(x0), a__sel(mark(x2), cons(mark(z0), z1))), MARK(x0))
   A__SEL(s(x0), cons(x1, sel(x2, s(z0)))) -> c3(A__SEL(mark(x0), a__sel(mark(x2), s(mark(z0)))), MARK(x0))
   A__SEL(s(x0), cons(x1, sel(x2, 0))) -> c3(A__SEL(mark(x0), a__sel(mark(x2), 0)), MARK(x0))
   A__SEL(s(x0), cons(x1, sel(from(z0), x3))) -> c3(A__SEL(mark(x0), a__sel(a__from(mark(z0)), mark(x3))), MARK(x0))
   A__SEL(s(x0), cons(x1, sel(sel(z0, z1), x3))) -> c3(A__SEL(mark(x0), a__sel(a__sel(mark(z0), mark(z1)), mark(x3))), MARK(x0))
   A__SEL(s(x0), cons(x1, sel(cons(z0, z1), x3))) -> c3(A__SEL(mark(x0), a__sel(cons(mark(z0), z1), mark(x3))), MARK(x0))
   A__SEL(s(x0), cons(x1, sel(s(z0), x3))) -> c3(A__SEL(mark(x0), a__sel(s(mark(z0)), mark(x3))), MARK(x0))
   A__SEL(s(x0), cons(x1, sel(0, x3))) -> c3(A__SEL(mark(x0), a__sel(0, mark(x3))), MARK(x0))
   A__SEL(s(from(z0)), cons(x1, sel(x2, x3))) -> c3(A__SEL(a__from(mark(z0)), a__sel(mark(x2), mark(x3))), MARK(from(z0)))
   A__SEL(s(sel(z0, z1)), cons(x1, sel(x2, x3))) -> c3(A__SEL(a__sel(mark(z0), mark(z1)), a__sel(mark(x2), mark(x3))), MARK(sel(z0, z1)))
   A__SEL(s(s(z0)), cons(x1, sel(x2, x3))) -> c3(A__SEL(s(mark(z0)), a__sel(mark(x2), mark(x3))), MARK(s(z0)))
   A__SEL(s(x0), cons(x1, sel(x2, x3))) -> c3(MARK(x0))
   A__SEL(s(cons(z0, z1)), cons(x1, sel(x2, x3))) -> c3(MARK(cons(z0, z1)))
   A__SEL(s(0), cons(x1, sel(x2, x3))) -> c3(A__SEL(0, a__sel(mark(x2), mark(x3))))
   A__SEL(s(x0), cons(x1, cons(from(z0), x3))) -> c3(A__SEL(mark(x0), cons(a__from(mark(z0)), x3)), MARK(x0))
   A__SEL(s(x0), cons(x1, cons(sel(z0, z1), x3))) -> c3(A__SEL(mark(x0), cons(a__sel(mark(z0), mark(z1)), x3)), MARK(x0))
   A__SEL(s(x0), cons(x1, cons(cons(z0, z1), x3))) -> c3(A__SEL(mark(x0), cons(cons(mark(z0), z1), x3)), MARK(x0))
   A__SEL(s(x0), cons(x1, cons(s(z0), x3))) -> c3(A__SEL(mark(x0), cons(s(mark(z0)), x3)), MARK(x0))
   A__SEL(s(x0), cons(x1, cons(0, x3))) -> c3(A__SEL(mark(x0), cons(0, x3)), MARK(x0))
   A__SEL(s(from(z0)), cons(x1, cons(x2, x3))) -> c3(A__SEL(a__from(mark(z0)), cons(mark(x2), x3)), MARK(from(z0)))
   A__SEL(s(sel(z0, z1)), cons(x1, cons(x2, x3))) -> c3(A__SEL(a__sel(mark(z0), mark(z1)), cons(mark(x2), x3)), MARK(sel(z0, z1)))
   A__SEL(s(s(z0)), cons(x1, cons(x2, x3))) -> c3(A__SEL(s(mark(z0)), cons(mark(x2), x3)), MARK(s(z0)))
   A__SEL(s(cons(z0, z1)), cons(x1, cons(x2, x3))) -> c3(MARK(cons(z0, z1)))
   A__SEL(s(0), cons(x1, cons(x2, x3))) -> c3(A__SEL(0, cons(mark(x2), x3)))
   A__SEL(s(from(from(z0))), cons(x1, x2)) -> c3(A__SEL(a__from(a__from(mark(z0))), mark(x2)), MARK(from(from(z0))))
   A__SEL(s(from(sel(z0, z1))), cons(x1, x2)) -> c3(A__SEL(a__from(a__sel(mark(z0), mark(z1))), mark(x2)), MARK(from(sel(z0, z1))))
   A__SEL(s(from(cons(z0, z1))), cons(x1, x2)) -> c3(A__SEL(a__from(cons(mark(z0), z1)), mark(x2)), MARK(from(cons(z0, z1))))
   A__SEL(s(from(s(z0))), cons(x1, x2)) -> c3(A__SEL(a__from(s(mark(z0))), mark(x2)), MARK(from(s(z0))))
   A__SEL(s(from(0)), cons(x1, x2)) -> c3(A__SEL(a__from(0), mark(x2)), MARK(from(0)))
   A__SEL(s(from(x0)), cons(x1, x2)) -> c3(MARK(from(x0)))
   A__SEL(s(from(x0)), cons(x1, s(z0))) -> c3(MARK(from(x0)))
   A__SEL(s(from(x0)), cons(x1, 0)) -> c3(MARK(from(x0)))
   A__SEL(s(sel(x0, from(z0))), cons(x2, x3)) -> c3(A__SEL(a__sel(mark(x0), a__from(mark(z0))), mark(x3)), MARK(sel(x0, from(z0))))
   A__SEL(s(sel(x0, sel(z0, z1))), cons(x2, x3)) -> c3(A__SEL(a__sel(mark(x0), a__sel(mark(z0), mark(z1))), mark(x3)), MARK(sel(x0, sel(z0, z1))))
   A__SEL(s(sel(x0, cons(z0, z1))), cons(x2, x3)) -> c3(A__SEL(a__sel(mark(x0), cons(mark(z0), z1)), mark(x3)), MARK(sel(x0, cons(z0, z1))))
   A__SEL(s(sel(x0, s(z0))), cons(x2, x3)) -> c3(A__SEL(a__sel(mark(x0), s(mark(z0))), mark(x3)), MARK(sel(x0, s(z0))))
   A__SEL(s(sel(x0, 0)), cons(x2, x3)) -> c3(A__SEL(a__sel(mark(x0), 0), mark(x3)), MARK(sel(x0, 0)))
   A__SEL(s(sel(from(z0), x1)), cons(x2, x3)) -> c3(A__SEL(a__sel(a__from(mark(z0)), mark(x1)), mark(x3)), MARK(sel(from(z0), x1)))
   A__SEL(s(sel(sel(z0, z1), x1)), cons(x2, x3)) -> c3(A__SEL(a__sel(a__sel(mark(z0), mark(z1)), mark(x1)), mark(x3)), MARK(sel(sel(z0, z1), x1)))
   A__SEL(s(sel(cons(z0, z1), x1)), cons(x2, x3)) -> c3(A__SEL(a__sel(cons(mark(z0), z1), mark(x1)), mark(x3)), MARK(sel(cons(z0, z1), x1)))
   A__SEL(s(sel(s(z0), x1)), cons(x2, x3)) -> c3(A__SEL(a__sel(s(mark(z0)), mark(x1)), mark(x3)), MARK(sel(s(z0), x1)))
   A__SEL(s(sel(0, x1)), cons(x2, x3)) -> c3(A__SEL(a__sel(0, mark(x1)), mark(x3)), MARK(sel(0, x1)))
   A__SEL(s(sel(x0, x1)), cons(x2, s(z0))) -> c3(MARK(sel(x0, x1)))
   A__SEL(s(sel(x0, x1)), cons(x2, 0)) -> c3(MARK(sel(x0, x1)))
   A__SEL(s(sel(x0, x1)), cons(x2, x3)) -> c3(MARK(sel(x0, x1)))
   A__SEL(s(s(from(z0))), cons(x1, x2)) -> c3(A__SEL(s(a__from(mark(z0))), mark(x2)), MARK(s(from(z0))))
   A__SEL(s(s(sel(z0, z1))), cons(x1, x2)) -> c3(A__SEL(s(a__sel(mark(z0), mark(z1))), mark(x2)), MARK(s(sel(z0, z1))))
   A__SEL(s(s(cons(z0, z1))), cons(x1, x2)) -> c3(A__SEL(s(cons(mark(z0), z1)), mark(x2)), MARK(s(cons(z0, z1))))
   A__SEL(s(s(s(z0))), cons(x1, x2)) -> c3(A__SEL(s(s(mark(z0))), mark(x2)), MARK(s(s(z0))))
   A__SEL(s(s(0)), cons(x1, x2)) -> c3(A__SEL(s(0), mark(x2)), MARK(s(0)))
   A__SEL(s(s(x0)), cons(x1, x2)) -> c3(MARK(s(x0)))
   A__SEL(s(s(x0)), cons(x1, s(z0))) -> c3(MARK(s(x0)))
   A__SEL(s(s(x0)), cons(x1, 0)) -> c3(MARK(s(x0)))
   A__SEL(s(0), cons(x0, s(z0))) -> c3(A__SEL(0, s(mark(z0))))
   A__SEL(s(0), cons(x0, 0)) -> c3(A__SEL(0, 0))
S tuples:
   A__FROM(z0) -> c(MARK(z0))
   A__SEL(0, cons(z0, z1)) -> c2(MARK(z0))
   MARK(from(z0)) -> c6(A__FROM(mark(z0)), MARK(z0))
   MARK(cons(z0, z1)) -> c9(MARK(z0))
   MARK(s(z0)) -> c10(MARK(z0))
   A__SEL(s(x0), cons(x1, s(z0))) -> c3(MARK(x0))
   A__SEL(s(x0), cons(x1, 0)) -> c3(MARK(x0))
   A__SEL(s(cons(z0, z1)), cons(x1, x2)) -> c3(MARK(cons(z0, z1)))
   A__SEL(s(x0), cons(x1, from(z0))) -> c4(A__SEL(mark(x0), a__from(mark(z0))), MARK(from(z0)))
   A__SEL(s(x0), cons(x1, sel(z0, z1))) -> c4(A__SEL(mark(x0), a__sel(mark(z0), mark(z1))), MARK(sel(z0, z1)))
   A__SEL(s(x0), cons(x1, cons(z0, z1))) -> c4(A__SEL(mark(x0), cons(mark(z0), z1)), MARK(cons(z0, z1)))
   A__SEL(s(from(z0)), cons(x1, x2)) -> c4(A__SEL(a__from(mark(z0)), mark(x2)), MARK(x2))
   A__SEL(s(sel(z0, z1)), cons(x1, x2)) -> c4(A__SEL(a__sel(mark(z0), mark(z1)), mark(x2)), MARK(x2))
   A__SEL(s(s(z0)), cons(x1, x2)) -> c4(A__SEL(s(mark(z0)), mark(x2)), MARK(x2))
   A__SEL(s(0), cons(x1, x2)) -> c4(A__SEL(0, mark(x2)), MARK(x2))
   A__SEL(s(x0), cons(x1, s(z0))) -> c4(MARK(s(z0)))
   A__SEL(s(cons(z0, z1)), cons(x1, x2)) -> c4(MARK(x2))
   MARK(sel(x0, from(z0))) -> c7(A__SEL(mark(x0), a__from(mark(z0))), MARK(x0))
   MARK(sel(x0, sel(z0, z1))) -> c7(A__SEL(mark(x0), a__sel(mark(z0), mark(z1))), MARK(x0))
   MARK(sel(x0, cons(z0, z1))) -> c7(A__SEL(mark(x0), cons(mark(z0), z1)), MARK(x0))
   MARK(sel(from(z0), x1)) -> c7(A__SEL(a__from(mark(z0)), mark(x1)), MARK(from(z0)))
   MARK(sel(sel(z0, z1), x1)) -> c7(A__SEL(a__sel(mark(z0), mark(z1)), mark(x1)), MARK(sel(z0, z1)))
   MARK(sel(s(z0), x1)) -> c7(A__SEL(s(mark(z0)), mark(x1)), MARK(s(z0)))
   MARK(sel(x0, s(z0))) -> c7(MARK(x0))
   MARK(sel(x0, 0)) -> c7(MARK(x0))
   MARK(sel(cons(z0, z1), x1)) -> c7(MARK(cons(z0, z1)))
   MARK(sel(0, x1)) -> c7(A__SEL(0, mark(x1)))
   MARK(sel(x0, from(z0))) -> c8(A__SEL(mark(x0), a__from(mark(z0))), MARK(from(z0)))
   MARK(sel(x0, sel(z0, z1))) -> c8(A__SEL(mark(x0), a__sel(mark(z0), mark(z1))), MARK(sel(z0, z1)))
   MARK(sel(x0, cons(z0, z1))) -> c8(A__SEL(mark(x0), cons(mark(z0), z1)), MARK(cons(z0, z1)))
   MARK(sel(from(z0), x1)) -> c8(A__SEL(a__from(mark(z0)), mark(x1)), MARK(x1))
   MARK(sel(sel(z0, z1), x1)) -> c8(A__SEL(a__sel(mark(z0), mark(z1)), mark(x1)), MARK(x1))
   MARK(sel(s(z0), x1)) -> c8(A__SEL(s(mark(z0)), mark(x1)), MARK(x1))
   MARK(sel(0, x1)) -> c8(A__SEL(0, mark(x1)), MARK(x1))
   MARK(sel(x0, s(z0))) -> c8(MARK(s(z0)))
   MARK(sel(cons(z0, z1), x1)) -> c8(MARK(x1))
   A__SEL(s(x0), cons(x1, from(x2))) -> c3(A__SEL(mark(x0), cons(mark(mark(x2)), from(s(mark(x2))))), MARK(x0))
   A__SEL(s(x0), cons(x1, from(from(z0)))) -> c3(A__SEL(mark(x0), a__from(a__from(mark(z0)))), MARK(x0))
   A__SEL(s(x0), cons(x1, from(sel(z0, z1)))) -> c3(A__SEL(mark(x0), a__from(a__sel(mark(z0), mark(z1)))), MARK(x0))
   A__SEL(s(x0), cons(x1, from(cons(z0, z1)))) -> c3(A__SEL(mark(x0), a__from(cons(mark(z0), z1))), MARK(x0))
   A__SEL(s(x0), cons(x1, from(s(z0)))) -> c3(A__SEL(mark(x0), a__from(s(mark(z0)))), MARK(x0))
   A__SEL(s(x0), cons(x1, from(0))) -> c3(A__SEL(mark(x0), a__from(0)), MARK(x0))
   A__SEL(s(from(z0)), cons(x1, from(x2))) -> c3(A__SEL(a__from(mark(z0)), a__from(mark(x2))), MARK(from(z0)))
   A__SEL(s(sel(z0, z1)), cons(x1, from(x2))) -> c3(A__SEL(a__sel(mark(z0), mark(z1)), a__from(mark(x2))), MARK(sel(z0, z1)))
   A__SEL(s(s(z0)), cons(x1, from(x2))) -> c3(A__SEL(s(mark(z0)), a__from(mark(x2))), MARK(s(z0)))
   A__SEL(s(x0), cons(x1, from(x2))) -> c3(MARK(x0))
   A__SEL(s(cons(z0, z1)), cons(x1, from(x2))) -> c3(MARK(cons(z0, z1)))
   A__SEL(s(0), cons(x1, from(x2))) -> c3(A__SEL(0, a__from(mark(x2))))
   A__SEL(s(x0), cons(x1, sel(x2, from(z0)))) -> c3(A__SEL(mark(x0), a__sel(mark(x2), a__from(mark(z0)))), MARK(x0))
   A__SEL(s(x0), cons(x1, sel(x2, sel(z0, z1)))) -> c3(A__SEL(mark(x0), a__sel(mark(x2), a__sel(mark(z0), mark(z1)))), MARK(x0))
   A__SEL(s(x0), cons(x1, sel(x2, cons(z0, z1)))) -> c3(A__SEL(mark(x0), a__sel(mark(x2), cons(mark(z0), z1))), MARK(x0))
   A__SEL(s(x0), cons(x1, sel(x2, s(z0)))) -> c3(A__SEL(mark(x0), a__sel(mark(x2), s(mark(z0)))), MARK(x0))
   A__SEL(s(x0), cons(x1, sel(x2, 0))) -> c3(A__SEL(mark(x0), a__sel(mark(x2), 0)), MARK(x0))
   A__SEL(s(x0), cons(x1, sel(from(z0), x3))) -> c3(A__SEL(mark(x0), a__sel(a__from(mark(z0)), mark(x3))), MARK(x0))
   A__SEL(s(x0), cons(x1, sel(sel(z0, z1), x3))) -> c3(A__SEL(mark(x0), a__sel(a__sel(mark(z0), mark(z1)), mark(x3))), MARK(x0))
   A__SEL(s(x0), cons(x1, sel(cons(z0, z1), x3))) -> c3(A__SEL(mark(x0), a__sel(cons(mark(z0), z1), mark(x3))), MARK(x0))
   A__SEL(s(x0), cons(x1, sel(s(z0), x3))) -> c3(A__SEL(mark(x0), a__sel(s(mark(z0)), mark(x3))), MARK(x0))
   A__SEL(s(x0), cons(x1, sel(0, x3))) -> c3(A__SEL(mark(x0), a__sel(0, mark(x3))), MARK(x0))
   A__SEL(s(from(z0)), cons(x1, sel(x2, x3))) -> c3(A__SEL(a__from(mark(z0)), a__sel(mark(x2), mark(x3))), MARK(from(z0)))
   A__SEL(s(sel(z0, z1)), cons(x1, sel(x2, x3))) -> c3(A__SEL(a__sel(mark(z0), mark(z1)), a__sel(mark(x2), mark(x3))), MARK(sel(z0, z1)))
   A__SEL(s(s(z0)), cons(x1, sel(x2, x3))) -> c3(A__SEL(s(mark(z0)), a__sel(mark(x2), mark(x3))), MARK(s(z0)))
   A__SEL(s(x0), cons(x1, sel(x2, x3))) -> c3(MARK(x0))
   A__SEL(s(cons(z0, z1)), cons(x1, sel(x2, x3))) -> c3(MARK(cons(z0, z1)))
   A__SEL(s(0), cons(x1, sel(x2, x3))) -> c3(A__SEL(0, a__sel(mark(x2), mark(x3))))
   A__SEL(s(x0), cons(x1, cons(from(z0), x3))) -> c3(A__SEL(mark(x0), cons(a__from(mark(z0)), x3)), MARK(x0))
   A__SEL(s(x0), cons(x1, cons(sel(z0, z1), x3))) -> c3(A__SEL(mark(x0), cons(a__sel(mark(z0), mark(z1)), x3)), MARK(x0))
   A__SEL(s(x0), cons(x1, cons(cons(z0, z1), x3))) -> c3(A__SEL(mark(x0), cons(cons(mark(z0), z1), x3)), MARK(x0))
   A__SEL(s(x0), cons(x1, cons(s(z0), x3))) -> c3(A__SEL(mark(x0), cons(s(mark(z0)), x3)), MARK(x0))
   A__SEL(s(x0), cons(x1, cons(0, x3))) -> c3(A__SEL(mark(x0), cons(0, x3)), MARK(x0))
   A__SEL(s(from(z0)), cons(x1, cons(x2, x3))) -> c3(A__SEL(a__from(mark(z0)), cons(mark(x2), x3)), MARK(from(z0)))
   A__SEL(s(sel(z0, z1)), cons(x1, cons(x2, x3))) -> c3(A__SEL(a__sel(mark(z0), mark(z1)), cons(mark(x2), x3)), MARK(sel(z0, z1)))
   A__SEL(s(s(z0)), cons(x1, cons(x2, x3))) -> c3(A__SEL(s(mark(z0)), cons(mark(x2), x3)), MARK(s(z0)))
   A__SEL(s(cons(z0, z1)), cons(x1, cons(x2, x3))) -> c3(MARK(cons(z0, z1)))
   A__SEL(s(0), cons(x1, cons(x2, x3))) -> c3(A__SEL(0, cons(mark(x2), x3)))
   A__SEL(s(from(from(z0))), cons(x1, x2)) -> c3(A__SEL(a__from(a__from(mark(z0))), mark(x2)), MARK(from(from(z0))))
   A__SEL(s(from(sel(z0, z1))), cons(x1, x2)) -> c3(A__SEL(a__from(a__sel(mark(z0), mark(z1))), mark(x2)), MARK(from(sel(z0, z1))))
   A__SEL(s(from(cons(z0, z1))), cons(x1, x2)) -> c3(A__SEL(a__from(cons(mark(z0), z1)), mark(x2)), MARK(from(cons(z0, z1))))
   A__SEL(s(from(s(z0))), cons(x1, x2)) -> c3(A__SEL(a__from(s(mark(z0))), mark(x2)), MARK(from(s(z0))))
   A__SEL(s(from(0)), cons(x1, x2)) -> c3(A__SEL(a__from(0), mark(x2)), MARK(from(0)))
   A__SEL(s(from(x0)), cons(x1, x2)) -> c3(MARK(from(x0)))
   A__SEL(s(from(x0)), cons(x1, s(z0))) -> c3(MARK(from(x0)))
   A__SEL(s(from(x0)), cons(x1, 0)) -> c3(MARK(from(x0)))
   A__SEL(s(sel(x0, from(z0))), cons(x2, x3)) -> c3(A__SEL(a__sel(mark(x0), a__from(mark(z0))), mark(x3)), MARK(sel(x0, from(z0))))
   A__SEL(s(sel(x0, sel(z0, z1))), cons(x2, x3)) -> c3(A__SEL(a__sel(mark(x0), a__sel(mark(z0), mark(z1))), mark(x3)), MARK(sel(x0, sel(z0, z1))))
   A__SEL(s(sel(x0, cons(z0, z1))), cons(x2, x3)) -> c3(A__SEL(a__sel(mark(x0), cons(mark(z0), z1)), mark(x3)), MARK(sel(x0, cons(z0, z1))))
   A__SEL(s(sel(x0, s(z0))), cons(x2, x3)) -> c3(A__SEL(a__sel(mark(x0), s(mark(z0))), mark(x3)), MARK(sel(x0, s(z0))))
   A__SEL(s(sel(x0, 0)), cons(x2, x3)) -> c3(A__SEL(a__sel(mark(x0), 0), mark(x3)), MARK(sel(x0, 0)))
   A__SEL(s(sel(from(z0), x1)), cons(x2, x3)) -> c3(A__SEL(a__sel(a__from(mark(z0)), mark(x1)), mark(x3)), MARK(sel(from(z0), x1)))
   A__SEL(s(sel(sel(z0, z1), x1)), cons(x2, x3)) -> c3(A__SEL(a__sel(a__sel(mark(z0), mark(z1)), mark(x1)), mark(x3)), MARK(sel(sel(z0, z1), x1)))
   A__SEL(s(sel(cons(z0, z1), x1)), cons(x2, x3)) -> c3(A__SEL(a__sel(cons(mark(z0), z1), mark(x1)), mark(x3)), MARK(sel(cons(z0, z1), x1)))
   A__SEL(s(sel(s(z0), x1)), cons(x2, x3)) -> c3(A__SEL(a__sel(s(mark(z0)), mark(x1)), mark(x3)), MARK(sel(s(z0), x1)))
   A__SEL(s(sel(0, x1)), cons(x2, x3)) -> c3(A__SEL(a__sel(0, mark(x1)), mark(x3)), MARK(sel(0, x1)))
   A__SEL(s(sel(x0, x1)), cons(x2, s(z0))) -> c3(MARK(sel(x0, x1)))
   A__SEL(s(sel(x0, x1)), cons(x2, 0)) -> c3(MARK(sel(x0, x1)))
   A__SEL(s(sel(x0, x1)), cons(x2, x3)) -> c3(MARK(sel(x0, x1)))
   A__SEL(s(s(from(z0))), cons(x1, x2)) -> c3(A__SEL(s(a__from(mark(z0))), mark(x2)), MARK(s(from(z0))))
   A__SEL(s(s(sel(z0, z1))), cons(x1, x2)) -> c3(A__SEL(s(a__sel(mark(z0), mark(z1))), mark(x2)), MARK(s(sel(z0, z1))))
   A__SEL(s(s(cons(z0, z1))), cons(x1, x2)) -> c3(A__SEL(s(cons(mark(z0), z1)), mark(x2)), MARK(s(cons(z0, z1))))
   A__SEL(s(s(s(z0))), cons(x1, x2)) -> c3(A__SEL(s(s(mark(z0))), mark(x2)), MARK(s(s(z0))))
   A__SEL(s(s(0)), cons(x1, x2)) -> c3(A__SEL(s(0), mark(x2)), MARK(s(0)))
   A__SEL(s(s(x0)), cons(x1, x2)) -> c3(MARK(s(x0)))
   A__SEL(s(s(x0)), cons(x1, s(z0))) -> c3(MARK(s(x0)))
   A__SEL(s(s(x0)), cons(x1, 0)) -> c3(MARK(s(x0)))
   A__SEL(s(0), cons(x0, s(z0))) -> c3(A__SEL(0, s(mark(z0))))
   A__SEL(s(0), cons(x0, 0)) -> c3(A__SEL(0, 0))
K tuples:none
Defined Rule Symbols:   a__from_1, a__sel_2, mark_1

Defined Pair Symbols:   A__FROM_1, A__SEL_2, MARK_1

Compound Symbols:   c_1, c2_1, c6_2, c9_1, c10_1, c3_1, c4_2, c4_1, c7_2, c7_1, c8_2, c8_1, c3_2


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

(103) CdtLeafRemovalProof (BOTH BOUNDS(ID, ID))
Removed 2 trailing nodes:
   A__SEL(s(0), cons(x0, 0)) -> c3(A__SEL(0, 0))
   A__SEL(s(0), cons(x0, s(z0))) -> c3(A__SEL(0, s(mark(z0))))

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

(104)
Obligation:
Complexity Dependency Tuples Problem

Rules:
   a__from(z0) -> cons(mark(z0), from(s(z0)))
   a__from(z0) -> from(z0)
   a__sel(0, cons(z0, z1)) -> mark(z0)
   a__sel(s(z0), cons(z1, z2)) -> a__sel(mark(z0), mark(z2))
   a__sel(z0, z1) -> sel(z0, z1)
   mark(from(z0)) -> a__from(mark(z0))
   mark(sel(z0, z1)) -> a__sel(mark(z0), mark(z1))
   mark(cons(z0, z1)) -> cons(mark(z0), z1)
   mark(s(z0)) -> s(mark(z0))
   mark(0) -> 0
Tuples:
   A__FROM(z0) -> c(MARK(z0))
   A__SEL(0, cons(z0, z1)) -> c2(MARK(z0))
   MARK(from(z0)) -> c6(A__FROM(mark(z0)), MARK(z0))
   MARK(cons(z0, z1)) -> c9(MARK(z0))
   MARK(s(z0)) -> c10(MARK(z0))
   A__SEL(s(x0), cons(x1, s(z0))) -> c3(MARK(x0))
   A__SEL(s(x0), cons(x1, 0)) -> c3(MARK(x0))
   A__SEL(s(cons(z0, z1)), cons(x1, x2)) -> c3(MARK(cons(z0, z1)))
   A__SEL(s(x0), cons(x1, from(z0))) -> c4(A__SEL(mark(x0), a__from(mark(z0))), MARK(from(z0)))
   A__SEL(s(x0), cons(x1, sel(z0, z1))) -> c4(A__SEL(mark(x0), a__sel(mark(z0), mark(z1))), MARK(sel(z0, z1)))
   A__SEL(s(x0), cons(x1, cons(z0, z1))) -> c4(A__SEL(mark(x0), cons(mark(z0), z1)), MARK(cons(z0, z1)))
   A__SEL(s(from(z0)), cons(x1, x2)) -> c4(A__SEL(a__from(mark(z0)), mark(x2)), MARK(x2))
   A__SEL(s(sel(z0, z1)), cons(x1, x2)) -> c4(A__SEL(a__sel(mark(z0), mark(z1)), mark(x2)), MARK(x2))
   A__SEL(s(s(z0)), cons(x1, x2)) -> c4(A__SEL(s(mark(z0)), mark(x2)), MARK(x2))
   A__SEL(s(0), cons(x1, x2)) -> c4(A__SEL(0, mark(x2)), MARK(x2))
   A__SEL(s(x0), cons(x1, s(z0))) -> c4(MARK(s(z0)))
   A__SEL(s(cons(z0, z1)), cons(x1, x2)) -> c4(MARK(x2))
   MARK(sel(x0, from(z0))) -> c7(A__SEL(mark(x0), a__from(mark(z0))), MARK(x0))
   MARK(sel(x0, sel(z0, z1))) -> c7(A__SEL(mark(x0), a__sel(mark(z0), mark(z1))), MARK(x0))
   MARK(sel(x0, cons(z0, z1))) -> c7(A__SEL(mark(x0), cons(mark(z0), z1)), MARK(x0))
   MARK(sel(from(z0), x1)) -> c7(A__SEL(a__from(mark(z0)), mark(x1)), MARK(from(z0)))
   MARK(sel(sel(z0, z1), x1)) -> c7(A__SEL(a__sel(mark(z0), mark(z1)), mark(x1)), MARK(sel(z0, z1)))
   MARK(sel(s(z0), x1)) -> c7(A__SEL(s(mark(z0)), mark(x1)), MARK(s(z0)))
   MARK(sel(x0, s(z0))) -> c7(MARK(x0))
   MARK(sel(x0, 0)) -> c7(MARK(x0))
   MARK(sel(cons(z0, z1), x1)) -> c7(MARK(cons(z0, z1)))
   MARK(sel(0, x1)) -> c7(A__SEL(0, mark(x1)))
   MARK(sel(x0, from(z0))) -> c8(A__SEL(mark(x0), a__from(mark(z0))), MARK(from(z0)))
   MARK(sel(x0, sel(z0, z1))) -> c8(A__SEL(mark(x0), a__sel(mark(z0), mark(z1))), MARK(sel(z0, z1)))
   MARK(sel(x0, cons(z0, z1))) -> c8(A__SEL(mark(x0), cons(mark(z0), z1)), MARK(cons(z0, z1)))
   MARK(sel(from(z0), x1)) -> c8(A__SEL(a__from(mark(z0)), mark(x1)), MARK(x1))
   MARK(sel(sel(z0, z1), x1)) -> c8(A__SEL(a__sel(mark(z0), mark(z1)), mark(x1)), MARK(x1))
   MARK(sel(s(z0), x1)) -> c8(A__SEL(s(mark(z0)), mark(x1)), MARK(x1))
   MARK(sel(0, x1)) -> c8(A__SEL(0, mark(x1)), MARK(x1))
   MARK(sel(x0, s(z0))) -> c8(MARK(s(z0)))
   MARK(sel(cons(z0, z1), x1)) -> c8(MARK(x1))
   A__SEL(s(x0), cons(x1, from(x2))) -> c3(A__SEL(mark(x0), cons(mark(mark(x2)), from(s(mark(x2))))), MARK(x0))
   A__SEL(s(x0), cons(x1, from(from(z0)))) -> c3(A__SEL(mark(x0), a__from(a__from(mark(z0)))), MARK(x0))
   A__SEL(s(x0), cons(x1, from(sel(z0, z1)))) -> c3(A__SEL(mark(x0), a__from(a__sel(mark(z0), mark(z1)))), MARK(x0))
   A__SEL(s(x0), cons(x1, from(cons(z0, z1)))) -> c3(A__SEL(mark(x0), a__from(cons(mark(z0), z1))), MARK(x0))
   A__SEL(s(x0), cons(x1, from(s(z0)))) -> c3(A__SEL(mark(x0), a__from(s(mark(z0)))), MARK(x0))
   A__SEL(s(x0), cons(x1, from(0))) -> c3(A__SEL(mark(x0), a__from(0)), MARK(x0))
   A__SEL(s(from(z0)), cons(x1, from(x2))) -> c3(A__SEL(a__from(mark(z0)), a__from(mark(x2))), MARK(from(z0)))
   A__SEL(s(sel(z0, z1)), cons(x1, from(x2))) -> c3(A__SEL(a__sel(mark(z0), mark(z1)), a__from(mark(x2))), MARK(sel(z0, z1)))
   A__SEL(s(s(z0)), cons(x1, from(x2))) -> c3(A__SEL(s(mark(z0)), a__from(mark(x2))), MARK(s(z0)))
   A__SEL(s(x0), cons(x1, from(x2))) -> c3(MARK(x0))
   A__SEL(s(cons(z0, z1)), cons(x1, from(x2))) -> c3(MARK(cons(z0, z1)))
   A__SEL(s(0), cons(x1, from(x2))) -> c3(A__SEL(0, a__from(mark(x2))))
   A__SEL(s(x0), cons(x1, sel(x2, from(z0)))) -> c3(A__SEL(mark(x0), a__sel(mark(x2), a__from(mark(z0)))), MARK(x0))
   A__SEL(s(x0), cons(x1, sel(x2, sel(z0, z1)))) -> c3(A__SEL(mark(x0), a__sel(mark(x2), a__sel(mark(z0), mark(z1)))), MARK(x0))
   A__SEL(s(x0), cons(x1, sel(x2, cons(z0, z1)))) -> c3(A__SEL(mark(x0), a__sel(mark(x2), cons(mark(z0), z1))), MARK(x0))
   A__SEL(s(x0), cons(x1, sel(x2, s(z0)))) -> c3(A__SEL(mark(x0), a__sel(mark(x2), s(mark(z0)))), MARK(x0))
   A__SEL(s(x0), cons(x1, sel(x2, 0))) -> c3(A__SEL(mark(x0), a__sel(mark(x2), 0)), MARK(x0))
   A__SEL(s(x0), cons(x1, sel(from(z0), x3))) -> c3(A__SEL(mark(x0), a__sel(a__from(mark(z0)), mark(x3))), MARK(x0))
   A__SEL(s(x0), cons(x1, sel(sel(z0, z1), x3))) -> c3(A__SEL(mark(x0), a__sel(a__sel(mark(z0), mark(z1)), mark(x3))), MARK(x0))
   A__SEL(s(x0), cons(x1, sel(cons(z0, z1), x3))) -> c3(A__SEL(mark(x0), a__sel(cons(mark(z0), z1), mark(x3))), MARK(x0))
   A__SEL(s(x0), cons(x1, sel(s(z0), x3))) -> c3(A__SEL(mark(x0), a__sel(s(mark(z0)), mark(x3))), MARK(x0))
   A__SEL(s(x0), cons(x1, sel(0, x3))) -> c3(A__SEL(mark(x0), a__sel(0, mark(x3))), MARK(x0))
   A__SEL(s(from(z0)), cons(x1, sel(x2, x3))) -> c3(A__SEL(a__from(mark(z0)), a__sel(mark(x2), mark(x3))), MARK(from(z0)))
   A__SEL(s(sel(z0, z1)), cons(x1, sel(x2, x3))) -> c3(A__SEL(a__sel(mark(z0), mark(z1)), a__sel(mark(x2), mark(x3))), MARK(sel(z0, z1)))
   A__SEL(s(s(z0)), cons(x1, sel(x2, x3))) -> c3(A__SEL(s(mark(z0)), a__sel(mark(x2), mark(x3))), MARK(s(z0)))
   A__SEL(s(x0), cons(x1, sel(x2, x3))) -> c3(MARK(x0))
   A__SEL(s(cons(z0, z1)), cons(x1, sel(x2, x3))) -> c3(MARK(cons(z0, z1)))
   A__SEL(s(0), cons(x1, sel(x2, x3))) -> c3(A__SEL(0, a__sel(mark(x2), mark(x3))))
   A__SEL(s(x0), cons(x1, cons(from(z0), x3))) -> c3(A__SEL(mark(x0), cons(a__from(mark(z0)), x3)), MARK(x0))
   A__SEL(s(x0), cons(x1, cons(sel(z0, z1), x3))) -> c3(A__SEL(mark(x0), cons(a__sel(mark(z0), mark(z1)), x3)), MARK(x0))
   A__SEL(s(x0), cons(x1, cons(cons(z0, z1), x3))) -> c3(A__SEL(mark(x0), cons(cons(mark(z0), z1), x3)), MARK(x0))
   A__SEL(s(x0), cons(x1, cons(s(z0), x3))) -> c3(A__SEL(mark(x0), cons(s(mark(z0)), x3)), MARK(x0))
   A__SEL(s(x0), cons(x1, cons(0, x3))) -> c3(A__SEL(mark(x0), cons(0, x3)), MARK(x0))
   A__SEL(s(from(z0)), cons(x1, cons(x2, x3))) -> c3(A__SEL(a__from(mark(z0)), cons(mark(x2), x3)), MARK(from(z0)))
   A__SEL(s(sel(z0, z1)), cons(x1, cons(x2, x3))) -> c3(A__SEL(a__sel(mark(z0), mark(z1)), cons(mark(x2), x3)), MARK(sel(z0, z1)))
   A__SEL(s(s(z0)), cons(x1, cons(x2, x3))) -> c3(A__SEL(s(mark(z0)), cons(mark(x2), x3)), MARK(s(z0)))
   A__SEL(s(cons(z0, z1)), cons(x1, cons(x2, x3))) -> c3(MARK(cons(z0, z1)))
   A__SEL(s(0), cons(x1, cons(x2, x3))) -> c3(A__SEL(0, cons(mark(x2), x3)))
   A__SEL(s(from(from(z0))), cons(x1, x2)) -> c3(A__SEL(a__from(a__from(mark(z0))), mark(x2)), MARK(from(from(z0))))
   A__SEL(s(from(sel(z0, z1))), cons(x1, x2)) -> c3(A__SEL(a__from(a__sel(mark(z0), mark(z1))), mark(x2)), MARK(from(sel(z0, z1))))
   A__SEL(s(from(cons(z0, z1))), cons(x1, x2)) -> c3(A__SEL(a__from(cons(mark(z0), z1)), mark(x2)), MARK(from(cons(z0, z1))))
   A__SEL(s(from(s(z0))), cons(x1, x2)) -> c3(A__SEL(a__from(s(mark(z0))), mark(x2)), MARK(from(s(z0))))
   A__SEL(s(from(0)), cons(x1, x2)) -> c3(A__SEL(a__from(0), mark(x2)), MARK(from(0)))
   A__SEL(s(from(x0)), cons(x1, x2)) -> c3(MARK(from(x0)))
   A__SEL(s(from(x0)), cons(x1, s(z0))) -> c3(MARK(from(x0)))
   A__SEL(s(from(x0)), cons(x1, 0)) -> c3(MARK(from(x0)))
   A__SEL(s(sel(x0, from(z0))), cons(x2, x3)) -> c3(A__SEL(a__sel(mark(x0), a__from(mark(z0))), mark(x3)), MARK(sel(x0, from(z0))))
   A__SEL(s(sel(x0, sel(z0, z1))), cons(x2, x3)) -> c3(A__SEL(a__sel(mark(x0), a__sel(mark(z0), mark(z1))), mark(x3)), MARK(sel(x0, sel(z0, z1))))
   A__SEL(s(sel(x0, cons(z0, z1))), cons(x2, x3)) -> c3(A__SEL(a__sel(mark(x0), cons(mark(z0), z1)), mark(x3)), MARK(sel(x0, cons(z0, z1))))
   A__SEL(s(sel(x0, s(z0))), cons(x2, x3)) -> c3(A__SEL(a__sel(mark(x0), s(mark(z0))), mark(x3)), MARK(sel(x0, s(z0))))
   A__SEL(s(sel(x0, 0)), cons(x2, x3)) -> c3(A__SEL(a__sel(mark(x0), 0), mark(x3)), MARK(sel(x0, 0)))
   A__SEL(s(sel(from(z0), x1)), cons(x2, x3)) -> c3(A__SEL(a__sel(a__from(mark(z0)), mark(x1)), mark(x3)), MARK(sel(from(z0), x1)))
   A__SEL(s(sel(sel(z0, z1), x1)), cons(x2, x3)) -> c3(A__SEL(a__sel(a__sel(mark(z0), mark(z1)), mark(x1)), mark(x3)), MARK(sel(sel(z0, z1), x1)))
   A__SEL(s(sel(cons(z0, z1), x1)), cons(x2, x3)) -> c3(A__SEL(a__sel(cons(mark(z0), z1), mark(x1)), mark(x3)), MARK(sel(cons(z0, z1), x1)))
   A__SEL(s(sel(s(z0), x1)), cons(x2, x3)) -> c3(A__SEL(a__sel(s(mark(z0)), mark(x1)), mark(x3)), MARK(sel(s(z0), x1)))
   A__SEL(s(sel(0, x1)), cons(x2, x3)) -> c3(A__SEL(a__sel(0, mark(x1)), mark(x3)), MARK(sel(0, x1)))
   A__SEL(s(sel(x0, x1)), cons(x2, s(z0))) -> c3(MARK(sel(x0, x1)))
   A__SEL(s(sel(x0, x1)), cons(x2, 0)) -> c3(MARK(sel(x0, x1)))
   A__SEL(s(sel(x0, x1)), cons(x2, x3)) -> c3(MARK(sel(x0, x1)))
   A__SEL(s(s(from(z0))), cons(x1, x2)) -> c3(A__SEL(s(a__from(mark(z0))), mark(x2)), MARK(s(from(z0))))
   A__SEL(s(s(sel(z0, z1))), cons(x1, x2)) -> c3(A__SEL(s(a__sel(mark(z0), mark(z1))), mark(x2)), MARK(s(sel(z0, z1))))
   A__SEL(s(s(cons(z0, z1))), cons(x1, x2)) -> c3(A__SEL(s(cons(mark(z0), z1)), mark(x2)), MARK(s(cons(z0, z1))))
   A__SEL(s(s(s(z0))), cons(x1, x2)) -> c3(A__SEL(s(s(mark(z0))), mark(x2)), MARK(s(s(z0))))
   A__SEL(s(s(0)), cons(x1, x2)) -> c3(A__SEL(s(0), mark(x2)), MARK(s(0)))
   A__SEL(s(s(x0)), cons(x1, x2)) -> c3(MARK(s(x0)))
   A__SEL(s(s(x0)), cons(x1, s(z0))) -> c3(MARK(s(x0)))
   A__SEL(s(s(x0)), cons(x1, 0)) -> c3(MARK(s(x0)))
S tuples:
   A__FROM(z0) -> c(MARK(z0))
   A__SEL(0, cons(z0, z1)) -> c2(MARK(z0))
   MARK(from(z0)) -> c6(A__FROM(mark(z0)), MARK(z0))
   MARK(cons(z0, z1)) -> c9(MARK(z0))
   MARK(s(z0)) -> c10(MARK(z0))
   A__SEL(s(x0), cons(x1, s(z0))) -> c3(MARK(x0))
   A__SEL(s(x0), cons(x1, 0)) -> c3(MARK(x0))
   A__SEL(s(cons(z0, z1)), cons(x1, x2)) -> c3(MARK(cons(z0, z1)))
   A__SEL(s(x0), cons(x1, from(z0))) -> c4(A__SEL(mark(x0), a__from(mark(z0))), MARK(from(z0)))
   A__SEL(s(x0), cons(x1, sel(z0, z1))) -> c4(A__SEL(mark(x0), a__sel(mark(z0), mark(z1))), MARK(sel(z0, z1)))
   A__SEL(s(x0), cons(x1, cons(z0, z1))) -> c4(A__SEL(mark(x0), cons(mark(z0), z1)), MARK(cons(z0, z1)))
   A__SEL(s(from(z0)), cons(x1, x2)) -> c4(A__SEL(a__from(mark(z0)), mark(x2)), MARK(x2))
   A__SEL(s(sel(z0, z1)), cons(x1, x2)) -> c4(A__SEL(a__sel(mark(z0), mark(z1)), mark(x2)), MARK(x2))
   A__SEL(s(s(z0)), cons(x1, x2)) -> c4(A__SEL(s(mark(z0)), mark(x2)), MARK(x2))
   A__SEL(s(0), cons(x1, x2)) -> c4(A__SEL(0, mark(x2)), MARK(x2))
   A__SEL(s(x0), cons(x1, s(z0))) -> c4(MARK(s(z0)))
   A__SEL(s(cons(z0, z1)), cons(x1, x2)) -> c4(MARK(x2))
   MARK(sel(x0, from(z0))) -> c7(A__SEL(mark(x0), a__from(mark(z0))), MARK(x0))
   MARK(sel(x0, sel(z0, z1))) -> c7(A__SEL(mark(x0), a__sel(mark(z0), mark(z1))), MARK(x0))
   MARK(sel(x0, cons(z0, z1))) -> c7(A__SEL(mark(x0), cons(mark(z0), z1)), MARK(x0))
   MARK(sel(from(z0), x1)) -> c7(A__SEL(a__from(mark(z0)), mark(x1)), MARK(from(z0)))
   MARK(sel(sel(z0, z1), x1)) -> c7(A__SEL(a__sel(mark(z0), mark(z1)), mark(x1)), MARK(sel(z0, z1)))
   MARK(sel(s(z0), x1)) -> c7(A__SEL(s(mark(z0)), mark(x1)), MARK(s(z0)))
   MARK(sel(x0, s(z0))) -> c7(MARK(x0))
   MARK(sel(x0, 0)) -> c7(MARK(x0))
   MARK(sel(cons(z0, z1), x1)) -> c7(MARK(cons(z0, z1)))
   MARK(sel(0, x1)) -> c7(A__SEL(0, mark(x1)))
   MARK(sel(x0, from(z0))) -> c8(A__SEL(mark(x0), a__from(mark(z0))), MARK(from(z0)))
   MARK(sel(x0, sel(z0, z1))) -> c8(A__SEL(mark(x0), a__sel(mark(z0), mark(z1))), MARK(sel(z0, z1)))
   MARK(sel(x0, cons(z0, z1))) -> c8(A__SEL(mark(x0), cons(mark(z0), z1)), MARK(cons(z0, z1)))
   MARK(sel(from(z0), x1)) -> c8(A__SEL(a__from(mark(z0)), mark(x1)), MARK(x1))
   MARK(sel(sel(z0, z1), x1)) -> c8(A__SEL(a__sel(mark(z0), mark(z1)), mark(x1)), MARK(x1))
   MARK(sel(s(z0), x1)) -> c8(A__SEL(s(mark(z0)), mark(x1)), MARK(x1))
   MARK(sel(0, x1)) -> c8(A__SEL(0, mark(x1)), MARK(x1))
   MARK(sel(x0, s(z0))) -> c8(MARK(s(z0)))
   MARK(sel(cons(z0, z1), x1)) -> c8(MARK(x1))
   A__SEL(s(x0), cons(x1, from(x2))) -> c3(A__SEL(mark(x0), cons(mark(mark(x2)), from(s(mark(x2))))), MARK(x0))
   A__SEL(s(x0), cons(x1, from(from(z0)))) -> c3(A__SEL(mark(x0), a__from(a__from(mark(z0)))), MARK(x0))
   A__SEL(s(x0), cons(x1, from(sel(z0, z1)))) -> c3(A__SEL(mark(x0), a__from(a__sel(mark(z0), mark(z1)))), MARK(x0))
   A__SEL(s(x0), cons(x1, from(cons(z0, z1)))) -> c3(A__SEL(mark(x0), a__from(cons(mark(z0), z1))), MARK(x0))
   A__SEL(s(x0), cons(x1, from(s(z0)))) -> c3(A__SEL(mark(x0), a__from(s(mark(z0)))), MARK(x0))
   A__SEL(s(x0), cons(x1, from(0))) -> c3(A__SEL(mark(x0), a__from(0)), MARK(x0))
   A__SEL(s(from(z0)), cons(x1, from(x2))) -> c3(A__SEL(a__from(mark(z0)), a__from(mark(x2))), MARK(from(z0)))
   A__SEL(s(sel(z0, z1)), cons(x1, from(x2))) -> c3(A__SEL(a__sel(mark(z0), mark(z1)), a__from(mark(x2))), MARK(sel(z0, z1)))
   A__SEL(s(s(z0)), cons(x1, from(x2))) -> c3(A__SEL(s(mark(z0)), a__from(mark(x2))), MARK(s(z0)))
   A__SEL(s(x0), cons(x1, from(x2))) -> c3(MARK(x0))
   A__SEL(s(cons(z0, z1)), cons(x1, from(x2))) -> c3(MARK(cons(z0, z1)))
   A__SEL(s(0), cons(x1, from(x2))) -> c3(A__SEL(0, a__from(mark(x2))))
   A__SEL(s(x0), cons(x1, sel(x2, from(z0)))) -> c3(A__SEL(mark(x0), a__sel(mark(x2), a__from(mark(z0)))), MARK(x0))
   A__SEL(s(x0), cons(x1, sel(x2, sel(z0, z1)))) -> c3(A__SEL(mark(x0), a__sel(mark(x2), a__sel(mark(z0), mark(z1)))), MARK(x0))
   A__SEL(s(x0), cons(x1, sel(x2, cons(z0, z1)))) -> c3(A__SEL(mark(x0), a__sel(mark(x2), cons(mark(z0), z1))), MARK(x0))
   A__SEL(s(x0), cons(x1, sel(x2, s(z0)))) -> c3(A__SEL(mark(x0), a__sel(mark(x2), s(mark(z0)))), MARK(x0))
   A__SEL(s(x0), cons(x1, sel(x2, 0))) -> c3(A__SEL(mark(x0), a__sel(mark(x2), 0)), MARK(x0))
   A__SEL(s(x0), cons(x1, sel(from(z0), x3))) -> c3(A__SEL(mark(x0), a__sel(a__from(mark(z0)), mark(x3))), MARK(x0))
   A__SEL(s(x0), cons(x1, sel(sel(z0, z1), x3))) -> c3(A__SEL(mark(x0), a__sel(a__sel(mark(z0), mark(z1)), mark(x3))), MARK(x0))
   A__SEL(s(x0), cons(x1, sel(cons(z0, z1), x3))) -> c3(A__SEL(mark(x0), a__sel(cons(mark(z0), z1), mark(x3))), MARK(x0))
   A__SEL(s(x0), cons(x1, sel(s(z0), x3))) -> c3(A__SEL(mark(x0), a__sel(s(mark(z0)), mark(x3))), MARK(x0))
   A__SEL(s(x0), cons(x1, sel(0, x3))) -> c3(A__SEL(mark(x0), a__sel(0, mark(x3))), MARK(x0))
   A__SEL(s(from(z0)), cons(x1, sel(x2, x3))) -> c3(A__SEL(a__from(mark(z0)), a__sel(mark(x2), mark(x3))), MARK(from(z0)))
   A__SEL(s(sel(z0, z1)), cons(x1, sel(x2, x3))) -> c3(A__SEL(a__sel(mark(z0), mark(z1)), a__sel(mark(x2), mark(x3))), MARK(sel(z0, z1)))
   A__SEL(s(s(z0)), cons(x1, sel(x2, x3))) -> c3(A__SEL(s(mark(z0)), a__sel(mark(x2), mark(x3))), MARK(s(z0)))
   A__SEL(s(x0), cons(x1, sel(x2, x3))) -> c3(MARK(x0))
   A__SEL(s(cons(z0, z1)), cons(x1, sel(x2, x3))) -> c3(MARK(cons(z0, z1)))
   A__SEL(s(0), cons(x1, sel(x2, x3))) -> c3(A__SEL(0, a__sel(mark(x2), mark(x3))))
   A__SEL(s(x0), cons(x1, cons(from(z0), x3))) -> c3(A__SEL(mark(x0), cons(a__from(mark(z0)), x3)), MARK(x0))
   A__SEL(s(x0), cons(x1, cons(sel(z0, z1), x3))) -> c3(A__SEL(mark(x0), cons(a__sel(mark(z0), mark(z1)), x3)), MARK(x0))
   A__SEL(s(x0), cons(x1, cons(cons(z0, z1), x3))) -> c3(A__SEL(mark(x0), cons(cons(mark(z0), z1), x3)), MARK(x0))
   A__SEL(s(x0), cons(x1, cons(s(z0), x3))) -> c3(A__SEL(mark(x0), cons(s(mark(z0)), x3)), MARK(x0))
   A__SEL(s(x0), cons(x1, cons(0, x3))) -> c3(A__SEL(mark(x0), cons(0, x3)), MARK(x0))
   A__SEL(s(from(z0)), cons(x1, cons(x2, x3))) -> c3(A__SEL(a__from(mark(z0)), cons(mark(x2), x3)), MARK(from(z0)))
   A__SEL(s(sel(z0, z1)), cons(x1, cons(x2, x3))) -> c3(A__SEL(a__sel(mark(z0), mark(z1)), cons(mark(x2), x3)), MARK(sel(z0, z1)))
   A__SEL(s(s(z0)), cons(x1, cons(x2, x3))) -> c3(A__SEL(s(mark(z0)), cons(mark(x2), x3)), MARK(s(z0)))
   A__SEL(s(cons(z0, z1)), cons(x1, cons(x2, x3))) -> c3(MARK(cons(z0, z1)))
   A__SEL(s(0), cons(x1, cons(x2, x3))) -> c3(A__SEL(0, cons(mark(x2), x3)))
   A__SEL(s(from(from(z0))), cons(x1, x2)) -> c3(A__SEL(a__from(a__from(mark(z0))), mark(x2)), MARK(from(from(z0))))
   A__SEL(s(from(sel(z0, z1))), cons(x1, x2)) -> c3(A__SEL(a__from(a__sel(mark(z0), mark(z1))), mark(x2)), MARK(from(sel(z0, z1))))
   A__SEL(s(from(cons(z0, z1))), cons(x1, x2)) -> c3(A__SEL(a__from(cons(mark(z0), z1)), mark(x2)), MARK(from(cons(z0, z1))))
   A__SEL(s(from(s(z0))), cons(x1, x2)) -> c3(A__SEL(a__from(s(mark(z0))), mark(x2)), MARK(from(s(z0))))
   A__SEL(s(from(0)), cons(x1, x2)) -> c3(A__SEL(a__from(0), mark(x2)), MARK(from(0)))
   A__SEL(s(from(x0)), cons(x1, x2)) -> c3(MARK(from(x0)))
   A__SEL(s(from(x0)), cons(x1, s(z0))) -> c3(MARK(from(x0)))
   A__SEL(s(from(x0)), cons(x1, 0)) -> c3(MARK(from(x0)))
   A__SEL(s(sel(x0, from(z0))), cons(x2, x3)) -> c3(A__SEL(a__sel(mark(x0), a__from(mark(z0))), mark(x3)), MARK(sel(x0, from(z0))))
   A__SEL(s(sel(x0, sel(z0, z1))), cons(x2, x3)) -> c3(A__SEL(a__sel(mark(x0), a__sel(mark(z0), mark(z1))), mark(x3)), MARK(sel(x0, sel(z0, z1))))
   A__SEL(s(sel(x0, cons(z0, z1))), cons(x2, x3)) -> c3(A__SEL(a__sel(mark(x0), cons(mark(z0), z1)), mark(x3)), MARK(sel(x0, cons(z0, z1))))
   A__SEL(s(sel(x0, s(z0))), cons(x2, x3)) -> c3(A__SEL(a__sel(mark(x0), s(mark(z0))), mark(x3)), MARK(sel(x0, s(z0))))
   A__SEL(s(sel(x0, 0)), cons(x2, x3)) -> c3(A__SEL(a__sel(mark(x0), 0), mark(x3)), MARK(sel(x0, 0)))
   A__SEL(s(sel(from(z0), x1)), cons(x2, x3)) -> c3(A__SEL(a__sel(a__from(mark(z0)), mark(x1)), mark(x3)), MARK(sel(from(z0), x1)))
   A__SEL(s(sel(sel(z0, z1), x1)), cons(x2, x3)) -> c3(A__SEL(a__sel(a__sel(mark(z0), mark(z1)), mark(x1)), mark(x3)), MARK(sel(sel(z0, z1), x1)))
   A__SEL(s(sel(cons(z0, z1), x1)), cons(x2, x3)) -> c3(A__SEL(a__sel(cons(mark(z0), z1), mark(x1)), mark(x3)), MARK(sel(cons(z0, z1), x1)))
   A__SEL(s(sel(s(z0), x1)), cons(x2, x3)) -> c3(A__SEL(a__sel(s(mark(z0)), mark(x1)), mark(x3)), MARK(sel(s(z0), x1)))
   A__SEL(s(sel(0, x1)), cons(x2, x3)) -> c3(A__SEL(a__sel(0, mark(x1)), mark(x3)), MARK(sel(0, x1)))
   A__SEL(s(sel(x0, x1)), cons(x2, s(z0))) -> c3(MARK(sel(x0, x1)))
   A__SEL(s(sel(x0, x1)), cons(x2, 0)) -> c3(MARK(sel(x0, x1)))
   A__SEL(s(sel(x0, x1)), cons(x2, x3)) -> c3(MARK(sel(x0, x1)))
   A__SEL(s(s(from(z0))), cons(x1, x2)) -> c3(A__SEL(s(a__from(mark(z0))), mark(x2)), MARK(s(from(z0))))
   A__SEL(s(s(sel(z0, z1))), cons(x1, x2)) -> c3(A__SEL(s(a__sel(mark(z0), mark(z1))), mark(x2)), MARK(s(sel(z0, z1))))
   A__SEL(s(s(cons(z0, z1))), cons(x1, x2)) -> c3(A__SEL(s(cons(mark(z0), z1)), mark(x2)), MARK(s(cons(z0, z1))))
   A__SEL(s(s(s(z0))), cons(x1, x2)) -> c3(A__SEL(s(s(mark(z0))), mark(x2)), MARK(s(s(z0))))
   A__SEL(s(s(0)), cons(x1, x2)) -> c3(A__SEL(s(0), mark(x2)), MARK(s(0)))
   A__SEL(s(s(x0)), cons(x1, x2)) -> c3(MARK(s(x0)))
   A__SEL(s(s(x0)), cons(x1, s(z0))) -> c3(MARK(s(x0)))
   A__SEL(s(s(x0)), cons(x1, 0)) -> c3(MARK(s(x0)))
K tuples:none
Defined Rule Symbols:   a__from_1, a__sel_2, mark_1

Defined Pair Symbols:   A__FROM_1, A__SEL_2, MARK_1

Compound Symbols:   c_1, c2_1, c6_2, c9_1, c10_1, c3_1, c4_2, c4_1, c7_2, c7_1, c8_2, c8_1, c3_2


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

(105) CdtNarrowingProof (BOTH BOUNDS(ID, ID))
Use narrowing to replace A__SEL(s(x0), cons(x1, from(z0))) -> c4(A__SEL(mark(x0), a__from(mark(z0))), MARK(from(z0))) by 
   A__SEL(s(x0), cons(x1, from(x2))) -> c4(A__SEL(mark(x0), cons(mark(mark(x2)), from(s(mark(x2))))), MARK(from(x2)))
   A__SEL(s(x0), cons(x1, from(x2))) -> c4(A__SEL(mark(x0), from(mark(x2))), MARK(from(x2)))
   A__SEL(s(x0), cons(x1, from(from(z0)))) -> c4(A__SEL(mark(x0), a__from(a__from(mark(z0)))), MARK(from(from(z0))))
   A__SEL(s(x0), cons(x1, from(sel(z0, z1)))) -> c4(A__SEL(mark(x0), a__from(a__sel(mark(z0), mark(z1)))), MARK(from(sel(z0, z1))))
   A__SEL(s(x0), cons(x1, from(cons(z0, z1)))) -> c4(A__SEL(mark(x0), a__from(cons(mark(z0), z1))), MARK(from(cons(z0, z1))))
   A__SEL(s(x0), cons(x1, from(s(z0)))) -> c4(A__SEL(mark(x0), a__from(s(mark(z0)))), MARK(from(s(z0))))
   A__SEL(s(x0), cons(x1, from(0))) -> c4(A__SEL(mark(x0), a__from(0)), MARK(from(0)))
   A__SEL(s(from(z0)), cons(x1, from(x2))) -> c4(A__SEL(a__from(mark(z0)), a__from(mark(x2))), MARK(from(x2)))
   A__SEL(s(sel(z0, z1)), cons(x1, from(x2))) -> c4(A__SEL(a__sel(mark(z0), mark(z1)), a__from(mark(x2))), MARK(from(x2)))
   A__SEL(s(cons(z0, z1)), cons(x1, from(x2))) -> c4(A__SEL(cons(mark(z0), z1), a__from(mark(x2))), MARK(from(x2)))
   A__SEL(s(s(z0)), cons(x1, from(x2))) -> c4(A__SEL(s(mark(z0)), a__from(mark(x2))), MARK(from(x2)))
   A__SEL(s(0), cons(x1, from(x2))) -> c4(A__SEL(0, a__from(mark(x2))), MARK(from(x2)))
   A__SEL(s(x0), cons(x1, from(x2))) -> c4(MARK(from(x2)))

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

(106)
Obligation:
Complexity Dependency Tuples Problem

Rules:
   a__from(z0) -> cons(mark(z0), from(s(z0)))
   a__from(z0) -> from(z0)
   a__sel(0, cons(z0, z1)) -> mark(z0)
   a__sel(s(z0), cons(z1, z2)) -> a__sel(mark(z0), mark(z2))
   a__sel(z0, z1) -> sel(z0, z1)
   mark(from(z0)) -> a__from(mark(z0))
   mark(sel(z0, z1)) -> a__sel(mark(z0), mark(z1))
   mark(cons(z0, z1)) -> cons(mark(z0), z1)
   mark(s(z0)) -> s(mark(z0))
   mark(0) -> 0
Tuples:
   A__FROM(z0) -> c(MARK(z0))
   A__SEL(0, cons(z0, z1)) -> c2(MARK(z0))
   MARK(from(z0)) -> c6(A__FROM(mark(z0)), MARK(z0))
   MARK(cons(z0, z1)) -> c9(MARK(z0))
   MARK(s(z0)) -> c10(MARK(z0))
   A__SEL(s(x0), cons(x1, s(z0))) -> c3(MARK(x0))
   A__SEL(s(x0), cons(x1, 0)) -> c3(MARK(x0))
   A__SEL(s(cons(z0, z1)), cons(x1, x2)) -> c3(MARK(cons(z0, z1)))
   A__SEL(s(x0), cons(x1, sel(z0, z1))) -> c4(A__SEL(mark(x0), a__sel(mark(z0), mark(z1))), MARK(sel(z0, z1)))
   A__SEL(s(x0), cons(x1, cons(z0, z1))) -> c4(A__SEL(mark(x0), cons(mark(z0), z1)), MARK(cons(z0, z1)))
   A__SEL(s(from(z0)), cons(x1, x2)) -> c4(A__SEL(a__from(mark(z0)), mark(x2)), MARK(x2))
   A__SEL(s(sel(z0, z1)), cons(x1, x2)) -> c4(A__SEL(a__sel(mark(z0), mark(z1)), mark(x2)), MARK(x2))
   A__SEL(s(s(z0)), cons(x1, x2)) -> c4(A__SEL(s(mark(z0)), mark(x2)), MARK(x2))
   A__SEL(s(0), cons(x1, x2)) -> c4(A__SEL(0, mark(x2)), MARK(x2))
   A__SEL(s(x0), cons(x1, s(z0))) -> c4(MARK(s(z0)))
   A__SEL(s(cons(z0, z1)), cons(x1, x2)) -> c4(MARK(x2))
   MARK(sel(x0, from(z0))) -> c7(A__SEL(mark(x0), a__from(mark(z0))), MARK(x0))
   MARK(sel(x0, sel(z0, z1))) -> c7(A__SEL(mark(x0), a__sel(mark(z0), mark(z1))), MARK(x0))
   MARK(sel(x0, cons(z0, z1))) -> c7(A__SEL(mark(x0), cons(mark(z0), z1)), MARK(x0))
   MARK(sel(from(z0), x1)) -> c7(A__SEL(a__from(mark(z0)), mark(x1)), MARK(from(z0)))
   MARK(sel(sel(z0, z1), x1)) -> c7(A__SEL(a__sel(mark(z0), mark(z1)), mark(x1)), MARK(sel(z0, z1)))
   MARK(sel(s(z0), x1)) -> c7(A__SEL(s(mark(z0)), mark(x1)), MARK(s(z0)))
   MARK(sel(x0, s(z0))) -> c7(MARK(x0))
   MARK(sel(x0, 0)) -> c7(MARK(x0))
   MARK(sel(cons(z0, z1), x1)) -> c7(MARK(cons(z0, z1)))
   MARK(sel(0, x1)) -> c7(A__SEL(0, mark(x1)))
   MARK(sel(x0, from(z0))) -> c8(A__SEL(mark(x0), a__from(mark(z0))), MARK(from(z0)))
   MARK(sel(x0, sel(z0, z1))) -> c8(A__SEL(mark(x0), a__sel(mark(z0), mark(z1))), MARK(sel(z0, z1)))
   MARK(sel(x0, cons(z0, z1))) -> c8(A__SEL(mark(x0), cons(mark(z0), z1)), MARK(cons(z0, z1)))
   MARK(sel(from(z0), x1)) -> c8(A__SEL(a__from(mark(z0)), mark(x1)), MARK(x1))
   MARK(sel(sel(z0, z1), x1)) -> c8(A__SEL(a__sel(mark(z0), mark(z1)), mark(x1)), MARK(x1))
   MARK(sel(s(z0), x1)) -> c8(A__SEL(s(mark(z0)), mark(x1)), MARK(x1))
   MARK(sel(0, x1)) -> c8(A__SEL(0, mark(x1)), MARK(x1))
   MARK(sel(x0, s(z0))) -> c8(MARK(s(z0)))
   MARK(sel(cons(z0, z1), x1)) -> c8(MARK(x1))
   A__SEL(s(x0), cons(x1, from(x2))) -> c3(A__SEL(mark(x0), cons(mark(mark(x2)), from(s(mark(x2))))), MARK(x0))
   A__SEL(s(x0), cons(x1, from(from(z0)))) -> c3(A__SEL(mark(x0), a__from(a__from(mark(z0)))), MARK(x0))
   A__SEL(s(x0), cons(x1, from(sel(z0, z1)))) -> c3(A__SEL(mark(x0), a__from(a__sel(mark(z0), mark(z1)))), MARK(x0))
   A__SEL(s(x0), cons(x1, from(cons(z0, z1)))) -> c3(A__SEL(mark(x0), a__from(cons(mark(z0), z1))), MARK(x0))
   A__SEL(s(x0), cons(x1, from(s(z0)))) -> c3(A__SEL(mark(x0), a__from(s(mark(z0)))), MARK(x0))
   A__SEL(s(x0), cons(x1, from(0))) -> c3(A__SEL(mark(x0), a__from(0)), MARK(x0))
   A__SEL(s(from(z0)), cons(x1, from(x2))) -> c3(A__SEL(a__from(mark(z0)), a__from(mark(x2))), MARK(from(z0)))
   A__SEL(s(sel(z0, z1)), cons(x1, from(x2))) -> c3(A__SEL(a__sel(mark(z0), mark(z1)), a__from(mark(x2))), MARK(sel(z0, z1)))
   A__SEL(s(s(z0)), cons(x1, from(x2))) -> c3(A__SEL(s(mark(z0)), a__from(mark(x2))), MARK(s(z0)))
   A__SEL(s(x0), cons(x1, from(x2))) -> c3(MARK(x0))
   A__SEL(s(cons(z0, z1)), cons(x1, from(x2))) -> c3(MARK(cons(z0, z1)))
   A__SEL(s(0), cons(x1, from(x2))) -> c3(A__SEL(0, a__from(mark(x2))))
   A__SEL(s(x0), cons(x1, sel(x2, from(z0)))) -> c3(A__SEL(mark(x0), a__sel(mark(x2), a__from(mark(z0)))), MARK(x0))
   A__SEL(s(x0), cons(x1, sel(x2, sel(z0, z1)))) -> c3(A__SEL(mark(x0), a__sel(mark(x2), a__sel(mark(z0), mark(z1)))), MARK(x0))
   A__SEL(s(x0), cons(x1, sel(x2, cons(z0, z1)))) -> c3(A__SEL(mark(x0), a__sel(mark(x2), cons(mark(z0), z1))), MARK(x0))
   A__SEL(s(x0), cons(x1, sel(x2, s(z0)))) -> c3(A__SEL(mark(x0), a__sel(mark(x2), s(mark(z0)))), MARK(x0))
   A__SEL(s(x0), cons(x1, sel(x2, 0))) -> c3(A__SEL(mark(x0), a__sel(mark(x2), 0)), MARK(x0))
   A__SEL(s(x0), cons(x1, sel(from(z0), x3))) -> c3(A__SEL(mark(x0), a__sel(a__from(mark(z0)), mark(x3))), MARK(x0))
   A__SEL(s(x0), cons(x1, sel(sel(z0, z1), x3))) -> c3(A__SEL(mark(x0), a__sel(a__sel(mark(z0), mark(z1)), mark(x3))), MARK(x0))
   A__SEL(s(x0), cons(x1, sel(cons(z0, z1), x3))) -> c3(A__SEL(mark(x0), a__sel(cons(mark(z0), z1), mark(x3))), MARK(x0))
   A__SEL(s(x0), cons(x1, sel(s(z0), x3))) -> c3(A__SEL(mark(x0), a__sel(s(mark(z0)), mark(x3))), MARK(x0))
   A__SEL(s(x0), cons(x1, sel(0, x3))) -> c3(A__SEL(mark(x0), a__sel(0, mark(x3))), MARK(x0))
   A__SEL(s(from(z0)), cons(x1, sel(x2, x3))) -> c3(A__SEL(a__from(mark(z0)), a__sel(mark(x2), mark(x3))), MARK(from(z0)))
   A__SEL(s(sel(z0, z1)), cons(x1, sel(x2, x3))) -> c3(A__SEL(a__sel(mark(z0), mark(z1)), a__sel(mark(x2), mark(x3))), MARK(sel(z0, z1)))
   A__SEL(s(s(z0)), cons(x1, sel(x2, x3))) -> c3(A__SEL(s(mark(z0)), a__sel(mark(x2), mark(x3))), MARK(s(z0)))
   A__SEL(s(x0), cons(x1, sel(x2, x3))) -> c3(MARK(x0))
   A__SEL(s(cons(z0, z1)), cons(x1, sel(x2, x3))) -> c3(MARK(cons(z0, z1)))
   A__SEL(s(0), cons(x1, sel(x2, x3))) -> c3(A__SEL(0, a__sel(mark(x2), mark(x3))))
   A__SEL(s(x0), cons(x1, cons(from(z0), x3))) -> c3(A__SEL(mark(x0), cons(a__from(mark(z0)), x3)), MARK(x0))
   A__SEL(s(x0), cons(x1, cons(sel(z0, z1), x3))) -> c3(A__SEL(mark(x0), cons(a__sel(mark(z0), mark(z1)), x3)), MARK(x0))
   A__SEL(s(x0), cons(x1, cons(cons(z0, z1), x3))) -> c3(A__SEL(mark(x0), cons(cons(mark(z0), z1), x3)), MARK(x0))
   A__SEL(s(x0), cons(x1, cons(s(z0), x3))) -> c3(A__SEL(mark(x0), cons(s(mark(z0)), x3)), MARK(x0))
   A__SEL(s(x0), cons(x1, cons(0, x3))) -> c3(A__SEL(mark(x0), cons(0, x3)), MARK(x0))
   A__SEL(s(from(z0)), cons(x1, cons(x2, x3))) -> c3(A__SEL(a__from(mark(z0)), cons(mark(x2), x3)), MARK(from(z0)))
   A__SEL(s(sel(z0, z1)), cons(x1, cons(x2, x3))) -> c3(A__SEL(a__sel(mark(z0), mark(z1)), cons(mark(x2), x3)), MARK(sel(z0, z1)))
   A__SEL(s(s(z0)), cons(x1, cons(x2, x3))) -> c3(A__SEL(s(mark(z0)), cons(mark(x2), x3)), MARK(s(z0)))
   A__SEL(s(cons(z0, z1)), cons(x1, cons(x2, x3))) -> c3(MARK(cons(z0, z1)))
   A__SEL(s(0), cons(x1, cons(x2, x3))) -> c3(A__SEL(0, cons(mark(x2), x3)))
   A__SEL(s(from(from(z0))), cons(x1, x2)) -> c3(A__SEL(a__from(a__from(mark(z0))), mark(x2)), MARK(from(from(z0))))
   A__SEL(s(from(sel(z0, z1))), cons(x1, x2)) -> c3(A__SEL(a__from(a__sel(mark(z0), mark(z1))), mark(x2)), MARK(from(sel(z0, z1))))
   A__SEL(s(from(cons(z0, z1))), cons(x1, x2)) -> c3(A__SEL(a__from(cons(mark(z0), z1)), mark(x2)), MARK(from(cons(z0, z1))))
   A__SEL(s(from(s(z0))), cons(x1, x2)) -> c3(A__SEL(a__from(s(mark(z0))), mark(x2)), MARK(from(s(z0))))
   A__SEL(s(from(0)), cons(x1, x2)) -> c3(A__SEL(a__from(0), mark(x2)), MARK(from(0)))
   A__SEL(s(from(x0)), cons(x1, x2)) -> c3(MARK(from(x0)))
   A__SEL(s(from(x0)), cons(x1, s(z0))) -> c3(MARK(from(x0)))
   A__SEL(s(from(x0)), cons(x1, 0)) -> c3(MARK(from(x0)))
   A__SEL(s(sel(x0, from(z0))), cons(x2, x3)) -> c3(A__SEL(a__sel(mark(x0), a__from(mark(z0))), mark(x3)), MARK(sel(x0, from(z0))))
   A__SEL(s(sel(x0, sel(z0, z1))), cons(x2, x3)) -> c3(A__SEL(a__sel(mark(x0), a__sel(mark(z0), mark(z1))), mark(x3)), MARK(sel(x0, sel(z0, z1))))
   A__SEL(s(sel(x0, cons(z0, z1))), cons(x2, x3)) -> c3(A__SEL(a__sel(mark(x0), cons(mark(z0), z1)), mark(x3)), MARK(sel(x0, cons(z0, z1))))
   A__SEL(s(sel(x0, s(z0))), cons(x2, x3)) -> c3(A__SEL(a__sel(mark(x0), s(mark(z0))), mark(x3)), MARK(sel(x0, s(z0))))
   A__SEL(s(sel(x0, 0)), cons(x2, x3)) -> c3(A__SEL(a__sel(mark(x0), 0), mark(x3)), MARK(sel(x0, 0)))
   A__SEL(s(sel(from(z0), x1)), cons(x2, x3)) -> c3(A__SEL(a__sel(a__from(mark(z0)), mark(x1)), mark(x3)), MARK(sel(from(z0), x1)))
   A__SEL(s(sel(sel(z0, z1), x1)), cons(x2, x3)) -> c3(A__SEL(a__sel(a__sel(mark(z0), mark(z1)), mark(x1)), mark(x3)), MARK(sel(sel(z0, z1), x1)))
   A__SEL(s(sel(cons(z0, z1), x1)), cons(x2, x3)) -> c3(A__SEL(a__sel(cons(mark(z0), z1), mark(x1)), mark(x3)), MARK(sel(cons(z0, z1), x1)))
   A__SEL(s(sel(s(z0), x1)), cons(x2, x3)) -> c3(A__SEL(a__sel(s(mark(z0)), mark(x1)), mark(x3)), MARK(sel(s(z0), x1)))
   A__SEL(s(sel(0, x1)), cons(x2, x3)) -> c3(A__SEL(a__sel(0, mark(x1)), mark(x3)), MARK(sel(0, x1)))
   A__SEL(s(sel(x0, x1)), cons(x2, s(z0))) -> c3(MARK(sel(x0, x1)))
   A__SEL(s(sel(x0, x1)), cons(x2, 0)) -> c3(MARK(sel(x0, x1)))
   A__SEL(s(sel(x0, x1)), cons(x2, x3)) -> c3(MARK(sel(x0, x1)))
   A__SEL(s(s(from(z0))), cons(x1, x2)) -> c3(A__SEL(s(a__from(mark(z0))), mark(x2)), MARK(s(from(z0))))
   A__SEL(s(s(sel(z0, z1))), cons(x1, x2)) -> c3(A__SEL(s(a__sel(mark(z0), mark(z1))), mark(x2)), MARK(s(sel(z0, z1))))
   A__SEL(s(s(cons(z0, z1))), cons(x1, x2)) -> c3(A__SEL(s(cons(mark(z0), z1)), mark(x2)), MARK(s(cons(z0, z1))))
   A__SEL(s(s(s(z0))), cons(x1, x2)) -> c3(A__SEL(s(s(mark(z0))), mark(x2)), MARK(s(s(z0))))
   A__SEL(s(s(0)), cons(x1, x2)) -> c3(A__SEL(s(0), mark(x2)), MARK(s(0)))
   A__SEL(s(s(x0)), cons(x1, x2)) -> c3(MARK(s(x0)))
   A__SEL(s(s(x0)), cons(x1, s(z0))) -> c3(MARK(s(x0)))
   A__SEL(s(s(x0)), cons(x1, 0)) -> c3(MARK(s(x0)))
   A__SEL(s(x0), cons(x1, from(x2))) -> c4(A__SEL(mark(x0), cons(mark(mark(x2)), from(s(mark(x2))))), MARK(from(x2)))
   A__SEL(s(x0), cons(x1, from(x2))) -> c4(A__SEL(mark(x0), from(mark(x2))), MARK(from(x2)))
   A__SEL(s(x0), cons(x1, from(from(z0)))) -> c4(A__SEL(mark(x0), a__from(a__from(mark(z0)))), MARK(from(from(z0))))
   A__SEL(s(x0), cons(x1, from(sel(z0, z1)))) -> c4(A__SEL(mark(x0), a__from(a__sel(mark(z0), mark(z1)))), MARK(from(sel(z0, z1))))
   A__SEL(s(x0), cons(x1, from(cons(z0, z1)))) -> c4(A__SEL(mark(x0), a__from(cons(mark(z0), z1))), MARK(from(cons(z0, z1))))
   A__SEL(s(x0), cons(x1, from(s(z0)))) -> c4(A__SEL(mark(x0), a__from(s(mark(z0)))), MARK(from(s(z0))))
   A__SEL(s(x0), cons(x1, from(0))) -> c4(A__SEL(mark(x0), a__from(0)), MARK(from(0)))
   A__SEL(s(from(z0)), cons(x1, from(x2))) -> c4(A__SEL(a__from(mark(z0)), a__from(mark(x2))), MARK(from(x2)))
   A__SEL(s(sel(z0, z1)), cons(x1, from(x2))) -> c4(A__SEL(a__sel(mark(z0), mark(z1)), a__from(mark(x2))), MARK(from(x2)))
   A__SEL(s(cons(z0, z1)), cons(x1, from(x2))) -> c4(A__SEL(cons(mark(z0), z1), a__from(mark(x2))), MARK(from(x2)))
   A__SEL(s(s(z0)), cons(x1, from(x2))) -> c4(A__SEL(s(mark(z0)), a__from(mark(x2))), MARK(from(x2)))
   A__SEL(s(0), cons(x1, from(x2))) -> c4(A__SEL(0, a__from(mark(x2))), MARK(from(x2)))
   A__SEL(s(x0), cons(x1, from(x2))) -> c4(MARK(from(x2)))
S tuples:
   A__FROM(z0) -> c(MARK(z0))
   A__SEL(0, cons(z0, z1)) -> c2(MARK(z0))
   MARK(from(z0)) -> c6(A__FROM(mark(z0)), MARK(z0))
   MARK(cons(z0, z1)) -> c9(MARK(z0))
   MARK(s(z0)) -> c10(MARK(z0))
   A__SEL(s(x0), cons(x1, s(z0))) -> c3(MARK(x0))
   A__SEL(s(x0), cons(x1, 0)) -> c3(MARK(x0))
   A__SEL(s(cons(z0, z1)), cons(x1, x2)) -> c3(MARK(cons(z0, z1)))
   A__SEL(s(x0), cons(x1, sel(z0, z1))) -> c4(A__SEL(mark(x0), a__sel(mark(z0), mark(z1))), MARK(sel(z0, z1)))
   A__SEL(s(x0), cons(x1, cons(z0, z1))) -> c4(A__SEL(mark(x0), cons(mark(z0), z1)), MARK(cons(z0, z1)))
   A__SEL(s(from(z0)), cons(x1, x2)) -> c4(A__SEL(a__from(mark(z0)), mark(x2)), MARK(x2))
   A__SEL(s(sel(z0, z1)), cons(x1, x2)) -> c4(A__SEL(a__sel(mark(z0), mark(z1)), mark(x2)), MARK(x2))
   A__SEL(s(s(z0)), cons(x1, x2)) -> c4(A__SEL(s(mark(z0)), mark(x2)), MARK(x2))
   A__SEL(s(0), cons(x1, x2)) -> c4(A__SEL(0, mark(x2)), MARK(x2))
   A__SEL(s(x0), cons(x1, s(z0))) -> c4(MARK(s(z0)))
   A__SEL(s(cons(z0, z1)), cons(x1, x2)) -> c4(MARK(x2))
   MARK(sel(x0, from(z0))) -> c7(A__SEL(mark(x0), a__from(mark(z0))), MARK(x0))
   MARK(sel(x0, sel(z0, z1))) -> c7(A__SEL(mark(x0), a__sel(mark(z0), mark(z1))), MARK(x0))
   MARK(sel(x0, cons(z0, z1))) -> c7(A__SEL(mark(x0), cons(mark(z0), z1)), MARK(x0))
   MARK(sel(from(z0), x1)) -> c7(A__SEL(a__from(mark(z0)), mark(x1)), MARK(from(z0)))
   MARK(sel(sel(z0, z1), x1)) -> c7(A__SEL(a__sel(mark(z0), mark(z1)), mark(x1)), MARK(sel(z0, z1)))
   MARK(sel(s(z0), x1)) -> c7(A__SEL(s(mark(z0)), mark(x1)), MARK(s(z0)))
   MARK(sel(x0, s(z0))) -> c7(MARK(x0))
   MARK(sel(x0, 0)) -> c7(MARK(x0))
   MARK(sel(cons(z0, z1), x1)) -> c7(MARK(cons(z0, z1)))
   MARK(sel(0, x1)) -> c7(A__SEL(0, mark(x1)))
   MARK(sel(x0, from(z0))) -> c8(A__SEL(mark(x0), a__from(mark(z0))), MARK(from(z0)))
   MARK(sel(x0, sel(z0, z1))) -> c8(A__SEL(mark(x0), a__sel(mark(z0), mark(z1))), MARK(sel(z0, z1)))
   MARK(sel(x0, cons(z0, z1))) -> c8(A__SEL(mark(x0), cons(mark(z0), z1)), MARK(cons(z0, z1)))
   MARK(sel(from(z0), x1)) -> c8(A__SEL(a__from(mark(z0)), mark(x1)), MARK(x1))
   MARK(sel(sel(z0, z1), x1)) -> c8(A__SEL(a__sel(mark(z0), mark(z1)), mark(x1)), MARK(x1))
   MARK(sel(s(z0), x1)) -> c8(A__SEL(s(mark(z0)), mark(x1)), MARK(x1))
   MARK(sel(0, x1)) -> c8(A__SEL(0, mark(x1)), MARK(x1))
   MARK(sel(x0, s(z0))) -> c8(MARK(s(z0)))
   MARK(sel(cons(z0, z1), x1)) -> c8(MARK(x1))
   A__SEL(s(x0), cons(x1, from(x2))) -> c3(A__SEL(mark(x0), cons(mark(mark(x2)), from(s(mark(x2))))), MARK(x0))
   A__SEL(s(x0), cons(x1, from(from(z0)))) -> c3(A__SEL(mark(x0), a__from(a__from(mark(z0)))), MARK(x0))
   A__SEL(s(x0), cons(x1, from(sel(z0, z1)))) -> c3(A__SEL(mark(x0), a__from(a__sel(mark(z0), mark(z1)))), MARK(x0))
   A__SEL(s(x0), cons(x1, from(cons(z0, z1)))) -> c3(A__SEL(mark(x0), a__from(cons(mark(z0), z1))), MARK(x0))
   A__SEL(s(x0), cons(x1, from(s(z0)))) -> c3(A__SEL(mark(x0), a__from(s(mark(z0)))), MARK(x0))
   A__SEL(s(x0), cons(x1, from(0))) -> c3(A__SEL(mark(x0), a__from(0)), MARK(x0))
   A__SEL(s(from(z0)), cons(x1, from(x2))) -> c3(A__SEL(a__from(mark(z0)), a__from(mark(x2))), MARK(from(z0)))
   A__SEL(s(sel(z0, z1)), cons(x1, from(x2))) -> c3(A__SEL(a__sel(mark(z0), mark(z1)), a__from(mark(x2))), MARK(sel(z0, z1)))
   A__SEL(s(s(z0)), cons(x1, from(x2))) -> c3(A__SEL(s(mark(z0)), a__from(mark(x2))), MARK(s(z0)))
   A__SEL(s(x0), cons(x1, from(x2))) -> c3(MARK(x0))
   A__SEL(s(cons(z0, z1)), cons(x1, from(x2))) -> c3(MARK(cons(z0, z1)))
   A__SEL(s(0), cons(x1, from(x2))) -> c3(A__SEL(0, a__from(mark(x2))))
   A__SEL(s(x0), cons(x1, sel(x2, from(z0)))) -> c3(A__SEL(mark(x0), a__sel(mark(x2), a__from(mark(z0)))), MARK(x0))
   A__SEL(s(x0), cons(x1, sel(x2, sel(z0, z1)))) -> c3(A__SEL(mark(x0), a__sel(mark(x2), a__sel(mark(z0), mark(z1)))), MARK(x0))
   A__SEL(s(x0), cons(x1, sel(x2, cons(z0, z1)))) -> c3(A__SEL(mark(x0), a__sel(mark(x2), cons(mark(z0), z1))), MARK(x0))
   A__SEL(s(x0), cons(x1, sel(x2, s(z0)))) -> c3(A__SEL(mark(x0), a__sel(mark(x2), s(mark(z0)))), MARK(x0))
   A__SEL(s(x0), cons(x1, sel(x2, 0))) -> c3(A__SEL(mark(x0), a__sel(mark(x2), 0)), MARK(x0))
   A__SEL(s(x0), cons(x1, sel(from(z0), x3))) -> c3(A__SEL(mark(x0), a__sel(a__from(mark(z0)), mark(x3))), MARK(x0))
   A__SEL(s(x0), cons(x1, sel(sel(z0, z1), x3))) -> c3(A__SEL(mark(x0), a__sel(a__sel(mark(z0), mark(z1)), mark(x3))), MARK(x0))
   A__SEL(s(x0), cons(x1, sel(cons(z0, z1), x3))) -> c3(A__SEL(mark(x0), a__sel(cons(mark(z0), z1), mark(x3))), MARK(x0))
   A__SEL(s(x0), cons(x1, sel(s(z0), x3))) -> c3(A__SEL(mark(x0), a__sel(s(mark(z0)), mark(x3))), MARK(x0))
   A__SEL(s(x0), cons(x1, sel(0, x3))) -> c3(A__SEL(mark(x0), a__sel(0, mark(x3))), MARK(x0))
   A__SEL(s(from(z0)), cons(x1, sel(x2, x3))) -> c3(A__SEL(a__from(mark(z0)), a__sel(mark(x2), mark(x3))), MARK(from(z0)))
   A__SEL(s(sel(z0, z1)), cons(x1, sel(x2, x3))) -> c3(A__SEL(a__sel(mark(z0), mark(z1)), a__sel(mark(x2), mark(x3))), MARK(sel(z0, z1)))
   A__SEL(s(s(z0)), cons(x1, sel(x2, x3))) -> c3(A__SEL(s(mark(z0)), a__sel(mark(x2), mark(x3))), MARK(s(z0)))
   A__SEL(s(x0), cons(x1, sel(x2, x3))) -> c3(MARK(x0))
   A__SEL(s(cons(z0, z1)), cons(x1, sel(x2, x3))) -> c3(MARK(cons(z0, z1)))
   A__SEL(s(0), cons(x1, sel(x2, x3))) -> c3(A__SEL(0, a__sel(mark(x2), mark(x3))))
   A__SEL(s(x0), cons(x1, cons(from(z0), x3))) -> c3(A__SEL(mark(x0), cons(a__from(mark(z0)), x3)), MARK(x0))
   A__SEL(s(x0), cons(x1, cons(sel(z0, z1), x3))) -> c3(A__SEL(mark(x0), cons(a__sel(mark(z0), mark(z1)), x3)), MARK(x0))
   A__SEL(s(x0), cons(x1, cons(cons(z0, z1), x3))) -> c3(A__SEL(mark(x0), cons(cons(mark(z0), z1), x3)), MARK(x0))
   A__SEL(s(x0), cons(x1, cons(s(z0), x3))) -> c3(A__SEL(mark(x0), cons(s(mark(z0)), x3)), MARK(x0))
   A__SEL(s(x0), cons(x1, cons(0, x3))) -> c3(A__SEL(mark(x0), cons(0, x3)), MARK(x0))
   A__SEL(s(from(z0)), cons(x1, cons(x2, x3))) -> c3(A__SEL(a__from(mark(z0)), cons(mark(x2), x3)), MARK(from(z0)))
   A__SEL(s(sel(z0, z1)), cons(x1, cons(x2, x3))) -> c3(A__SEL(a__sel(mark(z0), mark(z1)), cons(mark(x2), x3)), MARK(sel(z0, z1)))
   A__SEL(s(s(z0)), cons(x1, cons(x2, x3))) -> c3(A__SEL(s(mark(z0)), cons(mark(x2), x3)), MARK(s(z0)))
   A__SEL(s(cons(z0, z1)), cons(x1, cons(x2, x3))) -> c3(MARK(cons(z0, z1)))
   A__SEL(s(0), cons(x1, cons(x2, x3))) -> c3(A__SEL(0, cons(mark(x2), x3)))
   A__SEL(s(from(from(z0))), cons(x1, x2)) -> c3(A__SEL(a__from(a__from(mark(z0))), mark(x2)), MARK(from(from(z0))))
   A__SEL(s(from(sel(z0, z1))), cons(x1, x2)) -> c3(A__SEL(a__from(a__sel(mark(z0), mark(z1))), mark(x2)), MARK(from(sel(z0, z1))))
   A__SEL(s(from(cons(z0, z1))), cons(x1, x2)) -> c3(A__SEL(a__from(cons(mark(z0), z1)), mark(x2)), MARK(from(cons(z0, z1))))
   A__SEL(s(from(s(z0))), cons(x1, x2)) -> c3(A__SEL(a__from(s(mark(z0))), mark(x2)), MARK(from(s(z0))))
   A__SEL(s(from(0)), cons(x1, x2)) -> c3(A__SEL(a__from(0), mark(x2)), MARK(from(0)))
   A__SEL(s(from(x0)), cons(x1, x2)) -> c3(MARK(from(x0)))
   A__SEL(s(from(x0)), cons(x1, s(z0))) -> c3(MARK(from(x0)))
   A__SEL(s(from(x0)), cons(x1, 0)) -> c3(MARK(from(x0)))
   A__SEL(s(sel(x0, from(z0))), cons(x2, x3)) -> c3(A__SEL(a__sel(mark(x0), a__from(mark(z0))), mark(x3)), MARK(sel(x0, from(z0))))
   A__SEL(s(sel(x0, sel(z0, z1))), cons(x2, x3)) -> c3(A__SEL(a__sel(mark(x0), a__sel(mark(z0), mark(z1))), mark(x3)), MARK(sel(x0, sel(z0, z1))))
   A__SEL(s(sel(x0, cons(z0, z1))), cons(x2, x3)) -> c3(A__SEL(a__sel(mark(x0), cons(mark(z0), z1)), mark(x3)), MARK(sel(x0, cons(z0, z1))))
   A__SEL(s(sel(x0, s(z0))), cons(x2, x3)) -> c3(A__SEL(a__sel(mark(x0), s(mark(z0))), mark(x3)), MARK(sel(x0, s(z0))))
   A__SEL(s(sel(x0, 0)), cons(x2, x3)) -> c3(A__SEL(a__sel(mark(x0), 0), mark(x3)), MARK(sel(x0, 0)))
   A__SEL(s(sel(from(z0), x1)), cons(x2, x3)) -> c3(A__SEL(a__sel(a__from(mark(z0)), mark(x1)), mark(x3)), MARK(sel(from(z0), x1)))
   A__SEL(s(sel(sel(z0, z1), x1)), cons(x2, x3)) -> c3(A__SEL(a__sel(a__sel(mark(z0), mark(z1)), mark(x1)), mark(x3)), MARK(sel(sel(z0, z1), x1)))
   A__SEL(s(sel(cons(z0, z1), x1)), cons(x2, x3)) -> c3(A__SEL(a__sel(cons(mark(z0), z1), mark(x1)), mark(x3)), MARK(sel(cons(z0, z1), x1)))
   A__SEL(s(sel(s(z0), x1)), cons(x2, x3)) -> c3(A__SEL(a__sel(s(mark(z0)), mark(x1)), mark(x3)), MARK(sel(s(z0), x1)))
   A__SEL(s(sel(0, x1)), cons(x2, x3)) -> c3(A__SEL(a__sel(0, mark(x1)), mark(x3)), MARK(sel(0, x1)))
   A__SEL(s(sel(x0, x1)), cons(x2, s(z0))) -> c3(MARK(sel(x0, x1)))
   A__SEL(s(sel(x0, x1)), cons(x2, 0)) -> c3(MARK(sel(x0, x1)))
   A__SEL(s(sel(x0, x1)), cons(x2, x3)) -> c3(MARK(sel(x0, x1)))
   A__SEL(s(s(from(z0))), cons(x1, x2)) -> c3(A__SEL(s(a__from(mark(z0))), mark(x2)), MARK(s(from(z0))))
   A__SEL(s(s(sel(z0, z1))), cons(x1, x2)) -> c3(A__SEL(s(a__sel(mark(z0), mark(z1))), mark(x2)), MARK(s(sel(z0, z1))))
   A__SEL(s(s(cons(z0, z1))), cons(x1, x2)) -> c3(A__SEL(s(cons(mark(z0), z1)), mark(x2)), MARK(s(cons(z0, z1))))
   A__SEL(s(s(s(z0))), cons(x1, x2)) -> c3(A__SEL(s(s(mark(z0))), mark(x2)), MARK(s(s(z0))))
   A__SEL(s(s(0)), cons(x1, x2)) -> c3(A__SEL(s(0), mark(x2)), MARK(s(0)))
   A__SEL(s(s(x0)), cons(x1, x2)) -> c3(MARK(s(x0)))
   A__SEL(s(s(x0)), cons(x1, s(z0))) -> c3(MARK(s(x0)))
   A__SEL(s(s(x0)), cons(x1, 0)) -> c3(MARK(s(x0)))
   A__SEL(s(x0), cons(x1, from(x2))) -> c4(A__SEL(mark(x0), cons(mark(mark(x2)), from(s(mark(x2))))), MARK(from(x2)))
   A__SEL(s(x0), cons(x1, from(x2))) -> c4(A__SEL(mark(x0), from(mark(x2))), MARK(from(x2)))
   A__SEL(s(x0), cons(x1, from(from(z0)))) -> c4(A__SEL(mark(x0), a__from(a__from(mark(z0)))), MARK(from(from(z0))))
   A__SEL(s(x0), cons(x1, from(sel(z0, z1)))) -> c4(A__SEL(mark(x0), a__from(a__sel(mark(z0), mark(z1)))), MARK(from(sel(z0, z1))))
   A__SEL(s(x0), cons(x1, from(cons(z0, z1)))) -> c4(A__SEL(mark(x0), a__from(cons(mark(z0), z1))), MARK(from(cons(z0, z1))))
   A__SEL(s(x0), cons(x1, from(s(z0)))) -> c4(A__SEL(mark(x0), a__from(s(mark(z0)))), MARK(from(s(z0))))
   A__SEL(s(x0), cons(x1, from(0))) -> c4(A__SEL(mark(x0), a__from(0)), MARK(from(0)))
   A__SEL(s(from(z0)), cons(x1, from(x2))) -> c4(A__SEL(a__from(mark(z0)), a__from(mark(x2))), MARK(from(x2)))
   A__SEL(s(sel(z0, z1)), cons(x1, from(x2))) -> c4(A__SEL(a__sel(mark(z0), mark(z1)), a__from(mark(x2))), MARK(from(x2)))
   A__SEL(s(cons(z0, z1)), cons(x1, from(x2))) -> c4(A__SEL(cons(mark(z0), z1), a__from(mark(x2))), MARK(from(x2)))
   A__SEL(s(s(z0)), cons(x1, from(x2))) -> c4(A__SEL(s(mark(z0)), a__from(mark(x2))), MARK(from(x2)))
   A__SEL(s(0), cons(x1, from(x2))) -> c4(A__SEL(0, a__from(mark(x2))), MARK(from(x2)))
   A__SEL(s(x0), cons(x1, from(x2))) -> c4(MARK(from(x2)))
K tuples:none
Defined Rule Symbols:   a__from_1, a__sel_2, mark_1

Defined Pair Symbols:   A__FROM_1, A__SEL_2, MARK_1

Compound Symbols:   c_1, c2_1, c6_2, c9_1, c10_1, c3_1, c4_2, c4_1, c7_2, c7_1, c8_2, c8_1, c3_2


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

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

(108)
Obligation:
Complexity Dependency Tuples Problem

Rules:
   a__from(z0) -> cons(mark(z0), from(s(z0)))
   a__from(z0) -> from(z0)
   a__sel(0, cons(z0, z1)) -> mark(z0)
   a__sel(s(z0), cons(z1, z2)) -> a__sel(mark(z0), mark(z2))
   a__sel(z0, z1) -> sel(z0, z1)
   mark(from(z0)) -> a__from(mark(z0))
   mark(sel(z0, z1)) -> a__sel(mark(z0), mark(z1))
   mark(cons(z0, z1)) -> cons(mark(z0), z1)
   mark(s(z0)) -> s(mark(z0))
   mark(0) -> 0
Tuples:
   A__FROM(z0) -> c(MARK(z0))
   A__SEL(0, cons(z0, z1)) -> c2(MARK(z0))
   MARK(from(z0)) -> c6(A__FROM(mark(z0)), MARK(z0))
   MARK(cons(z0, z1)) -> c9(MARK(z0))
   MARK(s(z0)) -> c10(MARK(z0))
   A__SEL(s(x0), cons(x1, s(z0))) -> c3(MARK(x0))
   A__SEL(s(x0), cons(x1, 0)) -> c3(MARK(x0))
   A__SEL(s(cons(z0, z1)), cons(x1, x2)) -> c3(MARK(cons(z0, z1)))
   A__SEL(s(x0), cons(x1, sel(z0, z1))) -> c4(A__SEL(mark(x0), a__sel(mark(z0), mark(z1))), MARK(sel(z0, z1)))
   A__SEL(s(x0), cons(x1, cons(z0, z1))) -> c4(A__SEL(mark(x0), cons(mark(z0), z1)), MARK(cons(z0, z1)))
   A__SEL(s(from(z0)), cons(x1, x2)) -> c4(A__SEL(a__from(mark(z0)), mark(x2)), MARK(x2))
   A__SEL(s(sel(z0, z1)), cons(x1, x2)) -> c4(A__SEL(a__sel(mark(z0), mark(z1)), mark(x2)), MARK(x2))
   A__SEL(s(s(z0)), cons(x1, x2)) -> c4(A__SEL(s(mark(z0)), mark(x2)), MARK(x2))
   A__SEL(s(0), cons(x1, x2)) -> c4(A__SEL(0, mark(x2)), MARK(x2))
   A__SEL(s(x0), cons(x1, s(z0))) -> c4(MARK(s(z0)))
   A__SEL(s(cons(z0, z1)), cons(x1, x2)) -> c4(MARK(x2))
   MARK(sel(x0, from(z0))) -> c7(A__SEL(mark(x0), a__from(mark(z0))), MARK(x0))
   MARK(sel(x0, sel(z0, z1))) -> c7(A__SEL(mark(x0), a__sel(mark(z0), mark(z1))), MARK(x0))
   MARK(sel(x0, cons(z0, z1))) -> c7(A__SEL(mark(x0), cons(mark(z0), z1)), MARK(x0))
   MARK(sel(from(z0), x1)) -> c7(A__SEL(a__from(mark(z0)), mark(x1)), MARK(from(z0)))
   MARK(sel(sel(z0, z1), x1)) -> c7(A__SEL(a__sel(mark(z0), mark(z1)), mark(x1)), MARK(sel(z0, z1)))
   MARK(sel(s(z0), x1)) -> c7(A__SEL(s(mark(z0)), mark(x1)), MARK(s(z0)))
   MARK(sel(x0, s(z0))) -> c7(MARK(x0))
   MARK(sel(x0, 0)) -> c7(MARK(x0))
   MARK(sel(cons(z0, z1), x1)) -> c7(MARK(cons(z0, z1)))
   MARK(sel(0, x1)) -> c7(A__SEL(0, mark(x1)))
   MARK(sel(x0, from(z0))) -> c8(A__SEL(mark(x0), a__from(mark(z0))), MARK(from(z0)))
   MARK(sel(x0, sel(z0, z1))) -> c8(A__SEL(mark(x0), a__sel(mark(z0), mark(z1))), MARK(sel(z0, z1)))
   MARK(sel(x0, cons(z0, z1))) -> c8(A__SEL(mark(x0), cons(mark(z0), z1)), MARK(cons(z0, z1)))
   MARK(sel(from(z0), x1)) -> c8(A__SEL(a__from(mark(z0)), mark(x1)), MARK(x1))
   MARK(sel(sel(z0, z1), x1)) -> c8(A__SEL(a__sel(mark(z0), mark(z1)), mark(x1)), MARK(x1))
   MARK(sel(s(z0), x1)) -> c8(A__SEL(s(mark(z0)), mark(x1)), MARK(x1))
   MARK(sel(0, x1)) -> c8(A__SEL(0, mark(x1)), MARK(x1))
   MARK(sel(x0, s(z0))) -> c8(MARK(s(z0)))
   MARK(sel(cons(z0, z1), x1)) -> c8(MARK(x1))
   A__SEL(s(x0), cons(x1, from(x2))) -> c3(A__SEL(mark(x0), cons(mark(mark(x2)), from(s(mark(x2))))), MARK(x0))
   A__SEL(s(x0), cons(x1, from(from(z0)))) -> c3(A__SEL(mark(x0), a__from(a__from(mark(z0)))), MARK(x0))
   A__SEL(s(x0), cons(x1, from(sel(z0, z1)))) -> c3(A__SEL(mark(x0), a__from(a__sel(mark(z0), mark(z1)))), MARK(x0))
   A__SEL(s(x0), cons(x1, from(cons(z0, z1)))) -> c3(A__SEL(mark(x0), a__from(cons(mark(z0), z1))), MARK(x0))
   A__SEL(s(x0), cons(x1, from(s(z0)))) -> c3(A__SEL(mark(x0), a__from(s(mark(z0)))), MARK(x0))
   A__SEL(s(x0), cons(x1, from(0))) -> c3(A__SEL(mark(x0), a__from(0)), MARK(x0))
   A__SEL(s(from(z0)), cons(x1, from(x2))) -> c3(A__SEL(a__from(mark(z0)), a__from(mark(x2))), MARK(from(z0)))
   A__SEL(s(sel(z0, z1)), cons(x1, from(x2))) -> c3(A__SEL(a__sel(mark(z0), mark(z1)), a__from(mark(x2))), MARK(sel(z0, z1)))
   A__SEL(s(s(z0)), cons(x1, from(x2))) -> c3(A__SEL(s(mark(z0)), a__from(mark(x2))), MARK(s(z0)))
   A__SEL(s(x0), cons(x1, from(x2))) -> c3(MARK(x0))
   A__SEL(s(cons(z0, z1)), cons(x1, from(x2))) -> c3(MARK(cons(z0, z1)))
   A__SEL(s(0), cons(x1, from(x2))) -> c3(A__SEL(0, a__from(mark(x2))))
   A__SEL(s(x0), cons(x1, sel(x2, from(z0)))) -> c3(A__SEL(mark(x0), a__sel(mark(x2), a__from(mark(z0)))), MARK(x0))
   A__SEL(s(x0), cons(x1, sel(x2, sel(z0, z1)))) -> c3(A__SEL(mark(x0), a__sel(mark(x2), a__sel(mark(z0), mark(z1)))), MARK(x0))
   A__SEL(s(x0), cons(x1, sel(x2, cons(z0, z1)))) -> c3(A__SEL(mark(x0), a__sel(mark(x2), cons(mark(z0), z1))), MARK(x0))
   A__SEL(s(x0), cons(x1, sel(x2, s(z0)))) -> c3(A__SEL(mark(x0), a__sel(mark(x2), s(mark(z0)))), MARK(x0))
   A__SEL(s(x0), cons(x1, sel(x2, 0))) -> c3(A__SEL(mark(x0), a__sel(mark(x2), 0)), MARK(x0))
   A__SEL(s(x0), cons(x1, sel(from(z0), x3))) -> c3(A__SEL(mark(x0), a__sel(a__from(mark(z0)), mark(x3))), MARK(x0))
   A__SEL(s(x0), cons(x1, sel(sel(z0, z1), x3))) -> c3(A__SEL(mark(x0), a__sel(a__sel(mark(z0), mark(z1)), mark(x3))), MARK(x0))
   A__SEL(s(x0), cons(x1, sel(cons(z0, z1), x3))) -> c3(A__SEL(mark(x0), a__sel(cons(mark(z0), z1), mark(x3))), MARK(x0))
   A__SEL(s(x0), cons(x1, sel(s(z0), x3))) -> c3(A__SEL(mark(x0), a__sel(s(mark(z0)), mark(x3))), MARK(x0))
   A__SEL(s(x0), cons(x1, sel(0, x3))) -> c3(A__SEL(mark(x0), a__sel(0, mark(x3))), MARK(x0))
   A__SEL(s(from(z0)), cons(x1, sel(x2, x3))) -> c3(A__SEL(a__from(mark(z0)), a__sel(mark(x2), mark(x3))), MARK(from(z0)))
   A__SEL(s(sel(z0, z1)), cons(x1, sel(x2, x3))) -> c3(A__SEL(a__sel(mark(z0), mark(z1)), a__sel(mark(x2), mark(x3))), MARK(sel(z0, z1)))
   A__SEL(s(s(z0)), cons(x1, sel(x2, x3))) -> c3(A__SEL(s(mark(z0)), a__sel(mark(x2), mark(x3))), MARK(s(z0)))
   A__SEL(s(x0), cons(x1, sel(x2, x3))) -> c3(MARK(x0))
   A__SEL(s(cons(z0, z1)), cons(x1, sel(x2, x3))) -> c3(MARK(cons(z0, z1)))
   A__SEL(s(0), cons(x1, sel(x2, x3))) -> c3(A__SEL(0, a__sel(mark(x2), mark(x3))))
   A__SEL(s(x0), cons(x1, cons(from(z0), x3))) -> c3(A__SEL(mark(x0), cons(a__from(mark(z0)), x3)), MARK(x0))
   A__SEL(s(x0), cons(x1, cons(sel(z0, z1), x3))) -> c3(A__SEL(mark(x0), cons(a__sel(mark(z0), mark(z1)), x3)), MARK(x0))
   A__SEL(s(x0), cons(x1, cons(cons(z0, z1), x3))) -> c3(A__SEL(mark(x0), cons(cons(mark(z0), z1), x3)), MARK(x0))
   A__SEL(s(x0), cons(x1, cons(s(z0), x3))) -> c3(A__SEL(mark(x0), cons(s(mark(z0)), x3)), MARK(x0))
   A__SEL(s(x0), cons(x1, cons(0, x3))) -> c3(A__SEL(mark(x0), cons(0, x3)), MARK(x0))
   A__SEL(s(from(z0)), cons(x1, cons(x2, x3))) -> c3(A__SEL(a__from(mark(z0)), cons(mark(x2), x3)), MARK(from(z0)))
   A__SEL(s(sel(z0, z1)), cons(x1, cons(x2, x3))) -> c3(A__SEL(a__sel(mark(z0), mark(z1)), cons(mark(x2), x3)), MARK(sel(z0, z1)))
   A__SEL(s(s(z0)), cons(x1, cons(x2, x3))) -> c3(A__SEL(s(mark(z0)), cons(mark(x2), x3)), MARK(s(z0)))
   A__SEL(s(cons(z0, z1)), cons(x1, cons(x2, x3))) -> c3(MARK(cons(z0, z1)))
   A__SEL(s(0), cons(x1, cons(x2, x3))) -> c3(A__SEL(0, cons(mark(x2), x3)))
   A__SEL(s(from(from(z0))), cons(x1, x2)) -> c3(A__SEL(a__from(a__from(mark(z0))), mark(x2)), MARK(from(from(z0))))
   A__SEL(s(from(sel(z0, z1))), cons(x1, x2)) -> c3(A__SEL(a__from(a__sel(mark(z0), mark(z1))), mark(x2)), MARK(from(sel(z0, z1))))
   A__SEL(s(from(cons(z0, z1))), cons(x1, x2)) -> c3(A__SEL(a__from(cons(mark(z0), z1)), mark(x2)), MARK(from(cons(z0, z1))))
   A__SEL(s(from(s(z0))), cons(x1, x2)) -> c3(A__SEL(a__from(s(mark(z0))), mark(x2)), MARK(from(s(z0))))
   A__SEL(s(from(0)), cons(x1, x2)) -> c3(A__SEL(a__from(0), mark(x2)), MARK(from(0)))
   A__SEL(s(from(x0)), cons(x1, x2)) -> c3(MARK(from(x0)))
   A__SEL(s(from(x0)), cons(x1, s(z0))) -> c3(MARK(from(x0)))
   A__SEL(s(from(x0)), cons(x1, 0)) -> c3(MARK(from(x0)))
   A__SEL(s(sel(x0, from(z0))), cons(x2, x3)) -> c3(A__SEL(a__sel(mark(x0), a__from(mark(z0))), mark(x3)), MARK(sel(x0, from(z0))))
   A__SEL(s(sel(x0, sel(z0, z1))), cons(x2, x3)) -> c3(A__SEL(a__sel(mark(x0), a__sel(mark(z0), mark(z1))), mark(x3)), MARK(sel(x0, sel(z0, z1))))
   A__SEL(s(sel(x0, cons(z0, z1))), cons(x2, x3)) -> c3(A__SEL(a__sel(mark(x0), cons(mark(z0), z1)), mark(x3)), MARK(sel(x0, cons(z0, z1))))
   A__SEL(s(sel(x0, s(z0))), cons(x2, x3)) -> c3(A__SEL(a__sel(mark(x0), s(mark(z0))), mark(x3)), MARK(sel(x0, s(z0))))
   A__SEL(s(sel(x0, 0)), cons(x2, x3)) -> c3(A__SEL(a__sel(mark(x0), 0), mark(x3)), MARK(sel(x0, 0)))
   A__SEL(s(sel(from(z0), x1)), cons(x2, x3)) -> c3(A__SEL(a__sel(a__from(mark(z0)), mark(x1)), mark(x3)), MARK(sel(from(z0), x1)))
   A__SEL(s(sel(sel(z0, z1), x1)), cons(x2, x3)) -> c3(A__SEL(a__sel(a__sel(mark(z0), mark(z1)), mark(x1)), mark(x3)), MARK(sel(sel(z0, z1), x1)))
   A__SEL(s(sel(cons(z0, z1), x1)), cons(x2, x3)) -> c3(A__SEL(a__sel(cons(mark(z0), z1), mark(x1)), mark(x3)), MARK(sel(cons(z0, z1), x1)))
   A__SEL(s(sel(s(z0), x1)), cons(x2, x3)) -> c3(A__SEL(a__sel(s(mark(z0)), mark(x1)), mark(x3)), MARK(sel(s(z0), x1)))
   A__SEL(s(sel(0, x1)), cons(x2, x3)) -> c3(A__SEL(a__sel(0, mark(x1)), mark(x3)), MARK(sel(0, x1)))
   A__SEL(s(sel(x0, x1)), cons(x2, s(z0))) -> c3(MARK(sel(x0, x1)))
   A__SEL(s(sel(x0, x1)), cons(x2, 0)) -> c3(MARK(sel(x0, x1)))
   A__SEL(s(sel(x0, x1)), cons(x2, x3)) -> c3(MARK(sel(x0, x1)))
   A__SEL(s(s(from(z0))), cons(x1, x2)) -> c3(A__SEL(s(a__from(mark(z0))), mark(x2)), MARK(s(from(z0))))
   A__SEL(s(s(sel(z0, z1))), cons(x1, x2)) -> c3(A__SEL(s(a__sel(mark(z0), mark(z1))), mark(x2)), MARK(s(sel(z0, z1))))
   A__SEL(s(s(cons(z0, z1))), cons(x1, x2)) -> c3(A__SEL(s(cons(mark(z0), z1)), mark(x2)), MARK(s(cons(z0, z1))))
   A__SEL(s(s(s(z0))), cons(x1, x2)) -> c3(A__SEL(s(s(mark(z0))), mark(x2)), MARK(s(s(z0))))
   A__SEL(s(s(0)), cons(x1, x2)) -> c3(A__SEL(s(0), mark(x2)), MARK(s(0)))
   A__SEL(s(s(x0)), cons(x1, x2)) -> c3(MARK(s(x0)))
   A__SEL(s(s(x0)), cons(x1, s(z0))) -> c3(MARK(s(x0)))
   A__SEL(s(s(x0)), cons(x1, 0)) -> c3(MARK(s(x0)))
   A__SEL(s(x0), cons(x1, from(x2))) -> c4(A__SEL(mark(x0), cons(mark(mark(x2)), from(s(mark(x2))))), MARK(from(x2)))
   A__SEL(s(x0), cons(x1, from(from(z0)))) -> c4(A__SEL(mark(x0), a__from(a__from(mark(z0)))), MARK(from(from(z0))))
   A__SEL(s(x0), cons(x1, from(sel(z0, z1)))) -> c4(A__SEL(mark(x0), a__from(a__sel(mark(z0), mark(z1)))), MARK(from(sel(z0, z1))))
   A__SEL(s(x0), cons(x1, from(cons(z0, z1)))) -> c4(A__SEL(mark(x0), a__from(cons(mark(z0), z1))), MARK(from(cons(z0, z1))))
   A__SEL(s(x0), cons(x1, from(s(z0)))) -> c4(A__SEL(mark(x0), a__from(s(mark(z0)))), MARK(from(s(z0))))
   A__SEL(s(x0), cons(x1, from(0))) -> c4(A__SEL(mark(x0), a__from(0)), MARK(from(0)))
   A__SEL(s(from(z0)), cons(x1, from(x2))) -> c4(A__SEL(a__from(mark(z0)), a__from(mark(x2))), MARK(from(x2)))
   A__SEL(s(sel(z0, z1)), cons(x1, from(x2))) -> c4(A__SEL(a__sel(mark(z0), mark(z1)), a__from(mark(x2))), MARK(from(x2)))
   A__SEL(s(s(z0)), cons(x1, from(x2))) -> c4(A__SEL(s(mark(z0)), a__from(mark(x2))), MARK(from(x2)))
   A__SEL(s(0), cons(x1, from(x2))) -> c4(A__SEL(0, a__from(mark(x2))), MARK(from(x2)))
   A__SEL(s(x0), cons(x1, from(x2))) -> c4(MARK(from(x2)))
   A__SEL(s(cons(z0, z1)), cons(x1, from(x2))) -> c4(MARK(from(x2)))
S tuples:
   A__FROM(z0) -> c(MARK(z0))
   A__SEL(0, cons(z0, z1)) -> c2(MARK(z0))
   MARK(from(z0)) -> c6(A__FROM(mark(z0)), MARK(z0))
   MARK(cons(z0, z1)) -> c9(MARK(z0))
   MARK(s(z0)) -> c10(MARK(z0))
   A__SEL(s(x0), cons(x1, s(z0))) -> c3(MARK(x0))
   A__SEL(s(x0), cons(x1, 0)) -> c3(MARK(x0))
   A__SEL(s(cons(z0, z1)), cons(x1, x2)) -> c3(MARK(cons(z0, z1)))
   A__SEL(s(x0), cons(x1, sel(z0, z1))) -> c4(A__SEL(mark(x0), a__sel(mark(z0), mark(z1))), MARK(sel(z0, z1)))
   A__SEL(s(x0), cons(x1, cons(z0, z1))) -> c4(A__SEL(mark(x0), cons(mark(z0), z1)), MARK(cons(z0, z1)))
   A__SEL(s(from(z0)), cons(x1, x2)) -> c4(A__SEL(a__from(mark(z0)), mark(x2)), MARK(x2))
   A__SEL(s(sel(z0, z1)), cons(x1, x2)) -> c4(A__SEL(a__sel(mark(z0), mark(z1)), mark(x2)), MARK(x2))
   A__SEL(s(s(z0)), cons(x1, x2)) -> c4(A__SEL(s(mark(z0)), mark(x2)), MARK(x2))
   A__SEL(s(0), cons(x1, x2)) -> c4(A__SEL(0, mark(x2)), MARK(x2))
   A__SEL(s(x0), cons(x1, s(z0))) -> c4(MARK(s(z0)))
   A__SEL(s(cons(z0, z1)), cons(x1, x2)) -> c4(MARK(x2))
   MARK(sel(x0, from(z0))) -> c7(A__SEL(mark(x0), a__from(mark(z0))), MARK(x0))
   MARK(sel(x0, sel(z0, z1))) -> c7(A__SEL(mark(x0), a__sel(mark(z0), mark(z1))), MARK(x0))
   MARK(sel(x0, cons(z0, z1))) -> c7(A__SEL(mark(x0), cons(mark(z0), z1)), MARK(x0))
   MARK(sel(from(z0), x1)) -> c7(A__SEL(a__from(mark(z0)), mark(x1)), MARK(from(z0)))
   MARK(sel(sel(z0, z1), x1)) -> c7(A__SEL(a__sel(mark(z0), mark(z1)), mark(x1)), MARK(sel(z0, z1)))
   MARK(sel(s(z0), x1)) -> c7(A__SEL(s(mark(z0)), mark(x1)), MARK(s(z0)))
   MARK(sel(x0, s(z0))) -> c7(MARK(x0))
   MARK(sel(x0, 0)) -> c7(MARK(x0))
   MARK(sel(cons(z0, z1), x1)) -> c7(MARK(cons(z0, z1)))
   MARK(sel(0, x1)) -> c7(A__SEL(0, mark(x1)))
   MARK(sel(x0, from(z0))) -> c8(A__SEL(mark(x0), a__from(mark(z0))), MARK(from(z0)))
   MARK(sel(x0, sel(z0, z1))) -> c8(A__SEL(mark(x0), a__sel(mark(z0), mark(z1))), MARK(sel(z0, z1)))
   MARK(sel(x0, cons(z0, z1))) -> c8(A__SEL(mark(x0), cons(mark(z0), z1)), MARK(cons(z0, z1)))
   MARK(sel(from(z0), x1)) -> c8(A__SEL(a__from(mark(z0)), mark(x1)), MARK(x1))
   MARK(sel(sel(z0, z1), x1)) -> c8(A__SEL(a__sel(mark(z0), mark(z1)), mark(x1)), MARK(x1))
   MARK(sel(s(z0), x1)) -> c8(A__SEL(s(mark(z0)), mark(x1)), MARK(x1))
   MARK(sel(0, x1)) -> c8(A__SEL(0, mark(x1)), MARK(x1))
   MARK(sel(x0, s(z0))) -> c8(MARK(s(z0)))
   MARK(sel(cons(z0, z1), x1)) -> c8(MARK(x1))
   A__SEL(s(x0), cons(x1, from(x2))) -> c3(A__SEL(mark(x0), cons(mark(mark(x2)), from(s(mark(x2))))), MARK(x0))
   A__SEL(s(x0), cons(x1, from(from(z0)))) -> c3(A__SEL(mark(x0), a__from(a__from(mark(z0)))), MARK(x0))
   A__SEL(s(x0), cons(x1, from(sel(z0, z1)))) -> c3(A__SEL(mark(x0), a__from(a__sel(mark(z0), mark(z1)))), MARK(x0))
   A__SEL(s(x0), cons(x1, from(cons(z0, z1)))) -> c3(A__SEL(mark(x0), a__from(cons(mark(z0), z1))), MARK(x0))
   A__SEL(s(x0), cons(x1, from(s(z0)))) -> c3(A__SEL(mark(x0), a__from(s(mark(z0)))), MARK(x0))
   A__SEL(s(x0), cons(x1, from(0))) -> c3(A__SEL(mark(x0), a__from(0)), MARK(x0))
   A__SEL(s(from(z0)), cons(x1, from(x2))) -> c3(A__SEL(a__from(mark(z0)), a__from(mark(x2))), MARK(from(z0)))
   A__SEL(s(sel(z0, z1)), cons(x1, from(x2))) -> c3(A__SEL(a__sel(mark(z0), mark(z1)), a__from(mark(x2))), MARK(sel(z0, z1)))
   A__SEL(s(s(z0)), cons(x1, from(x2))) -> c3(A__SEL(s(mark(z0)), a__from(mark(x2))), MARK(s(z0)))
   A__SEL(s(x0), cons(x1, from(x2))) -> c3(MARK(x0))
   A__SEL(s(cons(z0, z1)), cons(x1, from(x2))) -> c3(MARK(cons(z0, z1)))
   A__SEL(s(0), cons(x1, from(x2))) -> c3(A__SEL(0, a__from(mark(x2))))
   A__SEL(s(x0), cons(x1, sel(x2, from(z0)))) -> c3(A__SEL(mark(x0), a__sel(mark(x2), a__from(mark(z0)))), MARK(x0))
   A__SEL(s(x0), cons(x1, sel(x2, sel(z0, z1)))) -> c3(A__SEL(mark(x0), a__sel(mark(x2), a__sel(mark(z0), mark(z1)))), MARK(x0))
   A__SEL(s(x0), cons(x1, sel(x2, cons(z0, z1)))) -> c3(A__SEL(mark(x0), a__sel(mark(x2), cons(mark(z0), z1))), MARK(x0))
   A__SEL(s(x0), cons(x1, sel(x2, s(z0)))) -> c3(A__SEL(mark(x0), a__sel(mark(x2), s(mark(z0)))), MARK(x0))
   A__SEL(s(x0), cons(x1, sel(x2, 0))) -> c3(A__SEL(mark(x0), a__sel(mark(x2), 0)), MARK(x0))
   A__SEL(s(x0), cons(x1, sel(from(z0), x3))) -> c3(A__SEL(mark(x0), a__sel(a__from(mark(z0)), mark(x3))), MARK(x0))
   A__SEL(s(x0), cons(x1, sel(sel(z0, z1), x3))) -> c3(A__SEL(mark(x0), a__sel(a__sel(mark(z0), mark(z1)), mark(x3))), MARK(x0))
   A__SEL(s(x0), cons(x1, sel(cons(z0, z1), x3))) -> c3(A__SEL(mark(x0), a__sel(cons(mark(z0), z1), mark(x3))), MARK(x0))
   A__SEL(s(x0), cons(x1, sel(s(z0), x3))) -> c3(A__SEL(mark(x0), a__sel(s(mark(z0)), mark(x3))), MARK(x0))
   A__SEL(s(x0), cons(x1, sel(0, x3))) -> c3(A__SEL(mark(x0), a__sel(0, mark(x3))), MARK(x0))
   A__SEL(s(from(z0)), cons(x1, sel(x2, x3))) -> c3(A__SEL(a__from(mark(z0)), a__sel(mark(x2), mark(x3))), MARK(from(z0)))
   A__SEL(s(sel(z0, z1)), cons(x1, sel(x2, x3))) -> c3(A__SEL(a__sel(mark(z0), mark(z1)), a__sel(mark(x2), mark(x3))), MARK(sel(z0, z1)))
   A__SEL(s(s(z0)), cons(x1, sel(x2, x3))) -> c3(A__SEL(s(mark(z0)), a__sel(mark(x2), mark(x3))), MARK(s(z0)))
   A__SEL(s(x0), cons(x1, sel(x2, x3))) -> c3(MARK(x0))
   A__SEL(s(cons(z0, z1)), cons(x1, sel(x2, x3))) -> c3(MARK(cons(z0, z1)))
   A__SEL(s(0), cons(x1, sel(x2, x3))) -> c3(A__SEL(0, a__sel(mark(x2), mark(x3))))
   A__SEL(s(x0), cons(x1, cons(from(z0), x3))) -> c3(A__SEL(mark(x0), cons(a__from(mark(z0)), x3)), MARK(x0))
   A__SEL(s(x0), cons(x1, cons(sel(z0, z1), x3))) -> c3(A__SEL(mark(x0), cons(a__sel(mark(z0), mark(z1)), x3)), MARK(x0))
   A__SEL(s(x0), cons(x1, cons(cons(z0, z1), x3))) -> c3(A__SEL(mark(x0), cons(cons(mark(z0), z1), x3)), MARK(x0))
   A__SEL(s(x0), cons(x1, cons(s(z0), x3))) -> c3(A__SEL(mark(x0), cons(s(mark(z0)), x3)), MARK(x0))
   A__SEL(s(x0), cons(x1, cons(0, x3))) -> c3(A__SEL(mark(x0), cons(0, x3)), MARK(x0))
   A__SEL(s(from(z0)), cons(x1, cons(x2, x3))) -> c3(A__SEL(a__from(mark(z0)), cons(mark(x2), x3)), MARK(from(z0)))
   A__SEL(s(sel(z0, z1)), cons(x1, cons(x2, x3))) -> c3(A__SEL(a__sel(mark(z0), mark(z1)), cons(mark(x2), x3)), MARK(sel(z0, z1)))
   A__SEL(s(s(z0)), cons(x1, cons(x2, x3))) -> c3(A__SEL(s(mark(z0)), cons(mark(x2), x3)), MARK(s(z0)))
   A__SEL(s(cons(z0, z1)), cons(x1, cons(x2, x3))) -> c3(MARK(cons(z0, z1)))
   A__SEL(s(0), cons(x1, cons(x2, x3))) -> c3(A__SEL(0, cons(mark(x2), x3)))
   A__SEL(s(from(from(z0))), cons(x1, x2)) -> c3(A__SEL(a__from(a__from(mark(z0))), mark(x2)), MARK(from(from(z0))))
   A__SEL(s(from(sel(z0, z1))), cons(x1, x2)) -> c3(A__SEL(a__from(a__sel(mark(z0), mark(z1))), mark(x2)), MARK(from(sel(z0, z1))))
   A__SEL(s(from(cons(z0, z1))), cons(x1, x2)) -> c3(A__SEL(a__from(cons(mark(z0), z1)), mark(x2)), MARK(from(cons(z0, z1))))
   A__SEL(s(from(s(z0))), cons(x1, x2)) -> c3(A__SEL(a__from(s(mark(z0))), mark(x2)), MARK(from(s(z0))))
   A__SEL(s(from(0)), cons(x1, x2)) -> c3(A__SEL(a__from(0), mark(x2)), MARK(from(0)))
   A__SEL(s(from(x0)), cons(x1, x2)) -> c3(MARK(from(x0)))
   A__SEL(s(from(x0)), cons(x1, s(z0))) -> c3(MARK(from(x0)))
   A__SEL(s(from(x0)), cons(x1, 0)) -> c3(MARK(from(x0)))
   A__SEL(s(sel(x0, from(z0))), cons(x2, x3)) -> c3(A__SEL(a__sel(mark(x0), a__from(mark(z0))), mark(x3)), MARK(sel(x0, from(z0))))
   A__SEL(s(sel(x0, sel(z0, z1))), cons(x2, x3)) -> c3(A__SEL(a__sel(mark(x0), a__sel(mark(z0), mark(z1))), mark(x3)), MARK(sel(x0, sel(z0, z1))))
   A__SEL(s(sel(x0, cons(z0, z1))), cons(x2, x3)) -> c3(A__SEL(a__sel(mark(x0), cons(mark(z0), z1)), mark(x3)), MARK(sel(x0, cons(z0, z1))))
   A__SEL(s(sel(x0, s(z0))), cons(x2, x3)) -> c3(A__SEL(a__sel(mark(x0), s(mark(z0))), mark(x3)), MARK(sel(x0, s(z0))))
   A__SEL(s(sel(x0, 0)), cons(x2, x3)) -> c3(A__SEL(a__sel(mark(x0), 0), mark(x3)), MARK(sel(x0, 0)))
   A__SEL(s(sel(from(z0), x1)), cons(x2, x3)) -> c3(A__SEL(a__sel(a__from(mark(z0)), mark(x1)), mark(x3)), MARK(sel(from(z0), x1)))
   A__SEL(s(sel(sel(z0, z1), x1)), cons(x2, x3)) -> c3(A__SEL(a__sel(a__sel(mark(z0), mark(z1)), mark(x1)), mark(x3)), MARK(sel(sel(z0, z1), x1)))
   A__SEL(s(sel(cons(z0, z1), x1)), cons(x2, x3)) -> c3(A__SEL(a__sel(cons(mark(z0), z1), mark(x1)), mark(x3)), MARK(sel(cons(z0, z1), x1)))
   A__SEL(s(sel(s(z0), x1)), cons(x2, x3)) -> c3(A__SEL(a__sel(s(mark(z0)), mark(x1)), mark(x3)), MARK(sel(s(z0), x1)))
   A__SEL(s(sel(0, x1)), cons(x2, x3)) -> c3(A__SEL(a__sel(0, mark(x1)), mark(x3)), MARK(sel(0, x1)))
   A__SEL(s(sel(x0, x1)), cons(x2, s(z0))) -> c3(MARK(sel(x0, x1)))
   A__SEL(s(sel(x0, x1)), cons(x2, 0)) -> c3(MARK(sel(x0, x1)))
   A__SEL(s(sel(x0, x1)), cons(x2, x3)) -> c3(MARK(sel(x0, x1)))
   A__SEL(s(s(from(z0))), cons(x1, x2)) -> c3(A__SEL(s(a__from(mark(z0))), mark(x2)), MARK(s(from(z0))))
   A__SEL(s(s(sel(z0, z1))), cons(x1, x2)) -> c3(A__SEL(s(a__sel(mark(z0), mark(z1))), mark(x2)), MARK(s(sel(z0, z1))))
   A__SEL(s(s(cons(z0, z1))), cons(x1, x2)) -> c3(A__SEL(s(cons(mark(z0), z1)), mark(x2)), MARK(s(cons(z0, z1))))
   A__SEL(s(s(s(z0))), cons(x1, x2)) -> c3(A__SEL(s(s(mark(z0))), mark(x2)), MARK(s(s(z0))))
   A__SEL(s(s(0)), cons(x1, x2)) -> c3(A__SEL(s(0), mark(x2)), MARK(s(0)))
   A__SEL(s(s(x0)), cons(x1, x2)) -> c3(MARK(s(x0)))
   A__SEL(s(s(x0)), cons(x1, s(z0))) -> c3(MARK(s(x0)))
   A__SEL(s(s(x0)), cons(x1, 0)) -> c3(MARK(s(x0)))
   A__SEL(s(x0), cons(x1, from(x2))) -> c4(A__SEL(mark(x0), cons(mark(mark(x2)), from(s(mark(x2))))), MARK(from(x2)))
   A__SEL(s(x0), cons(x1, from(from(z0)))) -> c4(A__SEL(mark(x0), a__from(a__from(mark(z0)))), MARK(from(from(z0))))
   A__SEL(s(x0), cons(x1, from(sel(z0, z1)))) -> c4(A__SEL(mark(x0), a__from(a__sel(mark(z0), mark(z1)))), MARK(from(sel(z0, z1))))
   A__SEL(s(x0), cons(x1, from(cons(z0, z1)))) -> c4(A__SEL(mark(x0), a__from(cons(mark(z0), z1))), MARK(from(cons(z0, z1))))
   A__SEL(s(x0), cons(x1, from(s(z0)))) -> c4(A__SEL(mark(x0), a__from(s(mark(z0)))), MARK(from(s(z0))))
   A__SEL(s(x0), cons(x1, from(0))) -> c4(A__SEL(mark(x0), a__from(0)), MARK(from(0)))
   A__SEL(s(from(z0)), cons(x1, from(x2))) -> c4(A__SEL(a__from(mark(z0)), a__from(mark(x2))), MARK(from(x2)))
   A__SEL(s(sel(z0, z1)), cons(x1, from(x2))) -> c4(A__SEL(a__sel(mark(z0), mark(z1)), a__from(mark(x2))), MARK(from(x2)))
   A__SEL(s(s(z0)), cons(x1, from(x2))) -> c4(A__SEL(s(mark(z0)), a__from(mark(x2))), MARK(from(x2)))
   A__SEL(s(0), cons(x1, from(x2))) -> c4(A__SEL(0, a__from(mark(x2))), MARK(from(x2)))
   A__SEL(s(x0), cons(x1, from(x2))) -> c4(MARK(from(x2)))
   A__SEL(s(cons(z0, z1)), cons(x1, from(x2))) -> c4(MARK(from(x2)))
K tuples:none
Defined Rule Symbols:   a__from_1, a__sel_2, mark_1

Defined Pair Symbols:   A__FROM_1, A__SEL_2, MARK_1

Compound Symbols:   c_1, c2_1, c6_2, c9_1, c10_1, c3_1, c4_2, c4_1, c7_2, c7_1, c8_2, c8_1, c3_2


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

(109) CdtNarrowingProof (BOTH BOUNDS(ID, ID))
Use narrowing to replace A__SEL(s(x0), cons(x1, sel(z0, z1))) -> c4(A__SEL(mark(x0), a__sel(mark(z0), mark(z1))), MARK(sel(z0, z1))) by 
   A__SEL(s(x0), cons(x1, sel(x2, x3))) -> c4(A__SEL(mark(x0), sel(mark(x2), mark(x3))), MARK(sel(x2, x3)))
   A__SEL(s(x0), cons(x1, sel(x2, from(z0)))) -> c4(A__SEL(mark(x0), a__sel(mark(x2), a__from(mark(z0)))), MARK(sel(x2, from(z0))))
   A__SEL(s(x0), cons(x1, sel(x2, sel(z0, z1)))) -> c4(A__SEL(mark(x0), a__sel(mark(x2), a__sel(mark(z0), mark(z1)))), MARK(sel(x2, sel(z0, z1))))
   A__SEL(s(x0), cons(x1, sel(x2, cons(z0, z1)))) -> c4(A__SEL(mark(x0), a__sel(mark(x2), cons(mark(z0), z1))), MARK(sel(x2, cons(z0, z1))))
   A__SEL(s(x0), cons(x1, sel(x2, s(z0)))) -> c4(A__SEL(mark(x0), a__sel(mark(x2), s(mark(z0)))), MARK(sel(x2, s(z0))))
   A__SEL(s(x0), cons(x1, sel(x2, 0))) -> c4(A__SEL(mark(x0), a__sel(mark(x2), 0)), MARK(sel(x2, 0)))
   A__SEL(s(x0), cons(x1, sel(from(z0), x3))) -> c4(A__SEL(mark(x0), a__sel(a__from(mark(z0)), mark(x3))), MARK(sel(from(z0), x3)))
   A__SEL(s(x0), cons(x1, sel(sel(z0, z1), x3))) -> c4(A__SEL(mark(x0), a__sel(a__sel(mark(z0), mark(z1)), mark(x3))), MARK(sel(sel(z0, z1), x3)))
   A__SEL(s(x0), cons(x1, sel(cons(z0, z1), x3))) -> c4(A__SEL(mark(x0), a__sel(cons(mark(z0), z1), mark(x3))), MARK(sel(cons(z0, z1), x3)))
   A__SEL(s(x0), cons(x1, sel(s(z0), x3))) -> c4(A__SEL(mark(x0), a__sel(s(mark(z0)), mark(x3))), MARK(sel(s(z0), x3)))
   A__SEL(s(x0), cons(x1, sel(0, x3))) -> c4(A__SEL(mark(x0), a__sel(0, mark(x3))), MARK(sel(0, x3)))
   A__SEL(s(from(z0)), cons(x1, sel(x2, x3))) -> c4(A__SEL(a__from(mark(z0)), a__sel(mark(x2), mark(x3))), MARK(sel(x2, x3)))
   A__SEL(s(sel(z0, z1)), cons(x1, sel(x2, x3))) -> c4(A__SEL(a__sel(mark(z0), mark(z1)), a__sel(mark(x2), mark(x3))), MARK(sel(x2, x3)))
   A__SEL(s(cons(z0, z1)), cons(x1, sel(x2, x3))) -> c4(A__SEL(cons(mark(z0), z1), a__sel(mark(x2), mark(x3))), MARK(sel(x2, x3)))
   A__SEL(s(s(z0)), cons(x1, sel(x2, x3))) -> c4(A__SEL(s(mark(z0)), a__sel(mark(x2), mark(x3))), MARK(sel(x2, x3)))
   A__SEL(s(0), cons(x1, sel(x2, x3))) -> c4(A__SEL(0, a__sel(mark(x2), mark(x3))), MARK(sel(x2, x3)))

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

(110)
Obligation:
Complexity Dependency Tuples Problem

Rules:
   a__from(z0) -> cons(mark(z0), from(s(z0)))
   a__from(z0) -> from(z0)
   a__sel(0, cons(z0, z1)) -> mark(z0)
   a__sel(s(z0), cons(z1, z2)) -> a__sel(mark(z0), mark(z2))
   a__sel(z0, z1) -> sel(z0, z1)
   mark(from(z0)) -> a__from(mark(z0))
   mark(sel(z0, z1)) -> a__sel(mark(z0), mark(z1))
   mark(cons(z0, z1)) -> cons(mark(z0), z1)
   mark(s(z0)) -> s(mark(z0))
   mark(0) -> 0
Tuples:
   A__FROM(z0) -> c(MARK(z0))
   A__SEL(0, cons(z0, z1)) -> c2(MARK(z0))
   MARK(from(z0)) -> c6(A__FROM(mark(z0)), MARK(z0))
   MARK(cons(z0, z1)) -> c9(MARK(z0))
   MARK(s(z0)) -> c10(MARK(z0))
   A__SEL(s(x0), cons(x1, s(z0))) -> c3(MARK(x0))
   A__SEL(s(x0), cons(x1, 0)) -> c3(MARK(x0))
   A__SEL(s(cons(z0, z1)), cons(x1, x2)) -> c3(MARK(cons(z0, z1)))
   A__SEL(s(x0), cons(x1, cons(z0, z1))) -> c4(A__SEL(mark(x0), cons(mark(z0), z1)), MARK(cons(z0, z1)))
   A__SEL(s(from(z0)), cons(x1, x2)) -> c4(A__SEL(a__from(mark(z0)), mark(x2)), MARK(x2))
   A__SEL(s(sel(z0, z1)), cons(x1, x2)) -> c4(A__SEL(a__sel(mark(z0), mark(z1)), mark(x2)), MARK(x2))
   A__SEL(s(s(z0)), cons(x1, x2)) -> c4(A__SEL(s(mark(z0)), mark(x2)), MARK(x2))
   A__SEL(s(0), cons(x1, x2)) -> c4(A__SEL(0, mark(x2)), MARK(x2))
   A__SEL(s(x0), cons(x1, s(z0))) -> c4(MARK(s(z0)))
   A__SEL(s(cons(z0, z1)), cons(x1, x2)) -> c4(MARK(x2))
   MARK(sel(x0, from(z0))) -> c7(A__SEL(mark(x0), a__from(mark(z0))), MARK(x0))
   MARK(sel(x0, sel(z0, z1))) -> c7(A__SEL(mark(x0), a__sel(mark(z0), mark(z1))), MARK(x0))
   MARK(sel(x0, cons(z0, z1))) -> c7(A__SEL(mark(x0), cons(mark(z0), z1)), MARK(x0))
   MARK(sel(from(z0), x1)) -> c7(A__SEL(a__from(mark(z0)), mark(x1)), MARK(from(z0)))
   MARK(sel(sel(z0, z1), x1)) -> c7(A__SEL(a__sel(mark(z0), mark(z1)), mark(x1)), MARK(sel(z0, z1)))
   MARK(sel(s(z0), x1)) -> c7(A__SEL(s(mark(z0)), mark(x1)), MARK(s(z0)))
   MARK(sel(x0, s(z0))) -> c7(MARK(x0))
   MARK(sel(x0, 0)) -> c7(MARK(x0))
   MARK(sel(cons(z0, z1), x1)) -> c7(MARK(cons(z0, z1)))
   MARK(sel(0, x1)) -> c7(A__SEL(0, mark(x1)))
   MARK(sel(x0, from(z0))) -> c8(A__SEL(mark(x0), a__from(mark(z0))), MARK(from(z0)))
   MARK(sel(x0, sel(z0, z1))) -> c8(A__SEL(mark(x0), a__sel(mark(z0), mark(z1))), MARK(sel(z0, z1)))
   MARK(sel(x0, cons(z0, z1))) -> c8(A__SEL(mark(x0), cons(mark(z0), z1)), MARK(cons(z0, z1)))
   MARK(sel(from(z0), x1)) -> c8(A__SEL(a__from(mark(z0)), mark(x1)), MARK(x1))
   MARK(sel(sel(z0, z1), x1)) -> c8(A__SEL(a__sel(mark(z0), mark(z1)), mark(x1)), MARK(x1))
   MARK(sel(s(z0), x1)) -> c8(A__SEL(s(mark(z0)), mark(x1)), MARK(x1))
   MARK(sel(0, x1)) -> c8(A__SEL(0, mark(x1)), MARK(x1))
   MARK(sel(x0, s(z0))) -> c8(MARK(s(z0)))
   MARK(sel(cons(z0, z1), x1)) -> c8(MARK(x1))
   A__SEL(s(x0), cons(x1, from(x2))) -> c3(A__SEL(mark(x0), cons(mark(mark(x2)), from(s(mark(x2))))), MARK(x0))
   A__SEL(s(x0), cons(x1, from(from(z0)))) -> c3(A__SEL(mark(x0), a__from(a__from(mark(z0)))), MARK(x0))
   A__SEL(s(x0), cons(x1, from(sel(z0, z1)))) -> c3(A__SEL(mark(x0), a__from(a__sel(mark(z0), mark(z1)))), MARK(x0))
   A__SEL(s(x0), cons(x1, from(cons(z0, z1)))) -> c3(A__SEL(mark(x0), a__from(cons(mark(z0), z1))), MARK(x0))
   A__SEL(s(x0), cons(x1, from(s(z0)))) -> c3(A__SEL(mark(x0), a__from(s(mark(z0)))), MARK(x0))
   A__SEL(s(x0), cons(x1, from(0))) -> c3(A__SEL(mark(x0), a__from(0)), MARK(x0))
   A__SEL(s(from(z0)), cons(x1, from(x2))) -> c3(A__SEL(a__from(mark(z0)), a__from(mark(x2))), MARK(from(z0)))
   A__SEL(s(sel(z0, z1)), cons(x1, from(x2))) -> c3(A__SEL(a__sel(mark(z0), mark(z1)), a__from(mark(x2))), MARK(sel(z0, z1)))
   A__SEL(s(s(z0)), cons(x1, from(x2))) -> c3(A__SEL(s(mark(z0)), a__from(mark(x2))), MARK(s(z0)))
   A__SEL(s(x0), cons(x1, from(x2))) -> c3(MARK(x0))
   A__SEL(s(cons(z0, z1)), cons(x1, from(x2))) -> c3(MARK(cons(z0, z1)))
   A__SEL(s(0), cons(x1, from(x2))) -> c3(A__SEL(0, a__from(mark(x2))))
   A__SEL(s(x0), cons(x1, sel(x2, from(z0)))) -> c3(A__SEL(mark(x0), a__sel(mark(x2), a__from(mark(z0)))), MARK(x0))
   A__SEL(s(x0), cons(x1, sel(x2, sel(z0, z1)))) -> c3(A__SEL(mark(x0), a__sel(mark(x2), a__sel(mark(z0), mark(z1)))), MARK(x0))
   A__SEL(s(x0), cons(x1, sel(x2, cons(z0, z1)))) -> c3(A__SEL(mark(x0), a__sel(mark(x2), cons(mark(z0), z1))), MARK(x0))
   A__SEL(s(x0), cons(x1, sel(x2, s(z0)))) -> c3(A__SEL(mark(x0), a__sel(mark(x2), s(mark(z0)))), MARK(x0))
   A__SEL(s(x0), cons(x1, sel(x2, 0))) -> c3(A__SEL(mark(x0), a__sel(mark(x2), 0)), MARK(x0))
   A__SEL(s(x0), cons(x1, sel(from(z0), x3))) -> c3(A__SEL(mark(x0), a__sel(a__from(mark(z0)), mark(x3))), MARK(x0))
   A__SEL(s(x0), cons(x1, sel(sel(z0, z1), x3))) -> c3(A__SEL(mark(x0), a__sel(a__sel(mark(z0), mark(z1)), mark(x3))), MARK(x0))
   A__SEL(s(x0), cons(x1, sel(cons(z0, z1), x3))) -> c3(A__SEL(mark(x0), a__sel(cons(mark(z0), z1), mark(x3))), MARK(x0))
   A__SEL(s(x0), cons(x1, sel(s(z0), x3))) -> c3(A__SEL(mark(x0), a__sel(s(mark(z0)), mark(x3))), MARK(x0))
   A__SEL(s(x0), cons(x1, sel(0, x3))) -> c3(A__SEL(mark(x0), a__sel(0, mark(x3))), MARK(x0))
   A__SEL(s(from(z0)), cons(x1, sel(x2, x3))) -> c3(A__SEL(a__from(mark(z0)), a__sel(mark(x2), mark(x3))), MARK(from(z0)))
   A__SEL(s(sel(z0, z1)), cons(x1, sel(x2, x3))) -> c3(A__SEL(a__sel(mark(z0), mark(z1)), a__sel(mark(x2), mark(x3))), MARK(sel(z0, z1)))
   A__SEL(s(s(z0)), cons(x1, sel(x2, x3))) -> c3(A__SEL(s(mark(z0)), a__sel(mark(x2), mark(x3))), MARK(s(z0)))
   A__SEL(s(x0), cons(x1, sel(x2, x3))) -> c3(MARK(x0))
   A__SEL(s(cons(z0, z1)), cons(x1, sel(x2, x3))) -> c3(MARK(cons(z0, z1)))
   A__SEL(s(0), cons(x1, sel(x2, x3))) -> c3(A__SEL(0, a__sel(mark(x2), mark(x3))))
   A__SEL(s(x0), cons(x1, cons(from(z0), x3))) -> c3(A__SEL(mark(x0), cons(a__from(mark(z0)), x3)), MARK(x0))
   A__SEL(s(x0), cons(x1, cons(sel(z0, z1), x3))) -> c3(A__SEL(mark(x0), cons(a__sel(mark(z0), mark(z1)), x3)), MARK(x0))
   A__SEL(s(x0), cons(x1, cons(cons(z0, z1), x3))) -> c3(A__SEL(mark(x0), cons(cons(mark(z0), z1), x3)), MARK(x0))
   A__SEL(s(x0), cons(x1, cons(s(z0), x3))) -> c3(A__SEL(mark(x0), cons(s(mark(z0)), x3)), MARK(x0))
   A__SEL(s(x0), cons(x1, cons(0, x3))) -> c3(A__SEL(mark(x0), cons(0, x3)), MARK(x0))
   A__SEL(s(from(z0)), cons(x1, cons(x2, x3))) -> c3(A__SEL(a__from(mark(z0)), cons(mark(x2), x3)), MARK(from(z0)))
   A__SEL(s(sel(z0, z1)), cons(x1, cons(x2, x3))) -> c3(A__SEL(a__sel(mark(z0), mark(z1)), cons(mark(x2), x3)), MARK(sel(z0, z1)))
   A__SEL(s(s(z0)), cons(x1, cons(x2, x3))) -> c3(A__SEL(s(mark(z0)), cons(mark(x2), x3)), MARK(s(z0)))
   A__SEL(s(cons(z0, z1)), cons(x1, cons(x2, x3))) -> c3(MARK(cons(z0, z1)))
   A__SEL(s(0), cons(x1, cons(x2, x3))) -> c3(A__SEL(0, cons(mark(x2), x3)))
   A__SEL(s(from(from(z0))), cons(x1, x2)) -> c3(A__SEL(a__from(a__from(mark(z0))), mark(x2)), MARK(from(from(z0))))
   A__SEL(s(from(sel(z0, z1))), cons(x1, x2)) -> c3(A__SEL(a__from(a__sel(mark(z0), mark(z1))), mark(x2)), MARK(from(sel(z0, z1))))
   A__SEL(s(from(cons(z0, z1))), cons(x1, x2)) -> c3(A__SEL(a__from(cons(mark(z0), z1)), mark(x2)), MARK(from(cons(z0, z1))))
   A__SEL(s(from(s(z0))), cons(x1, x2)) -> c3(A__SEL(a__from(s(mark(z0))), mark(x2)), MARK(from(s(z0))))
   A__SEL(s(from(0)), cons(x1, x2)) -> c3(A__SEL(a__from(0), mark(x2)), MARK(from(0)))
   A__SEL(s(from(x0)), cons(x1, x2)) -> c3(MARK(from(x0)))
   A__SEL(s(from(x0)), cons(x1, s(z0))) -> c3(MARK(from(x0)))
   A__SEL(s(from(x0)), cons(x1, 0)) -> c3(MARK(from(x0)))
   A__SEL(s(sel(x0, from(z0))), cons(x2, x3)) -> c3(A__SEL(a__sel(mark(x0), a__from(mark(z0))), mark(x3)), MARK(sel(x0, from(z0))))
   A__SEL(s(sel(x0, sel(z0, z1))), cons(x2, x3)) -> c3(A__SEL(a__sel(mark(x0), a__sel(mark(z0), mark(z1))), mark(x3)), MARK(sel(x0, sel(z0, z1))))
   A__SEL(s(sel(x0, cons(z0, z1))), cons(x2, x3)) -> c3(A__SEL(a__sel(mark(x0), cons(mark(z0), z1)), mark(x3)), MARK(sel(x0, cons(z0, z1))))
   A__SEL(s(sel(x0, s(z0))), cons(x2, x3)) -> c3(A__SEL(a__sel(mark(x0), s(mark(z0))), mark(x3)), MARK(sel(x0, s(z0))))
   A__SEL(s(sel(x0, 0)), cons(x2, x3)) -> c3(A__SEL(a__sel(mark(x0), 0), mark(x3)), MARK(sel(x0, 0)))
   A__SEL(s(sel(from(z0), x1)), cons(x2, x3)) -> c3(A__SEL(a__sel(a__from(mark(z0)), mark(x1)), mark(x3)), MARK(sel(from(z0), x1)))
   A__SEL(s(sel(sel(z0, z1), x1)), cons(x2, x3)) -> c3(A__SEL(a__sel(a__sel(mark(z0), mark(z1)), mark(x1)), mark(x3)), MARK(sel(sel(z0, z1), x1)))
   A__SEL(s(sel(cons(z0, z1), x1)), cons(x2, x3)) -> c3(A__SEL(a__sel(cons(mark(z0), z1), mark(x1)), mark(x3)), MARK(sel(cons(z0, z1), x1)))
   A__SEL(s(sel(s(z0), x1)), cons(x2, x3)) -> c3(A__SEL(a__sel(s(mark(z0)), mark(x1)), mark(x3)), MARK(sel(s(z0), x1)))
   A__SEL(s(sel(0, x1)), cons(x2, x3)) -> c3(A__SEL(a__sel(0, mark(x1)), mark(x3)), MARK(sel(0, x1)))
   A__SEL(s(sel(x0, x1)), cons(x2, s(z0))) -> c3(MARK(sel(x0, x1)))
   A__SEL(s(sel(x0, x1)), cons(x2, 0)) -> c3(MARK(sel(x0, x1)))
   A__SEL(s(sel(x0, x1)), cons(x2, x3)) -> c3(MARK(sel(x0, x1)))
   A__SEL(s(s(from(z0))), cons(x1, x2)) -> c3(A__SEL(s(a__from(mark(z0))), mark(x2)), MARK(s(from(z0))))
   A__SEL(s(s(sel(z0, z1))), cons(x1, x2)) -> c3(A__SEL(s(a__sel(mark(z0), mark(z1))), mark(x2)), MARK(s(sel(z0, z1))))
   A__SEL(s(s(cons(z0, z1))), cons(x1, x2)) -> c3(A__SEL(s(cons(mark(z0), z1)), mark(x2)), MARK(s(cons(z0, z1))))
   A__SEL(s(s(s(z0))), cons(x1, x2)) -> c3(A__SEL(s(s(mark(z0))), mark(x2)), MARK(s(s(z0))))
   A__SEL(s(s(0)), cons(x1, x2)) -> c3(A__SEL(s(0), mark(x2)), MARK(s(0)))
   A__SEL(s(s(x0)), cons(x1, x2)) -> c3(MARK(s(x0)))
   A__SEL(s(s(x0)), cons(x1, s(z0))) -> c3(MARK(s(x0)))
   A__SEL(s(s(x0)), cons(x1, 0)) -> c3(MARK(s(x0)))
   A__SEL(s(x0), cons(x1, from(x2))) -> c4(A__SEL(mark(x0), cons(mark(mark(x2)), from(s(mark(x2))))), MARK(from(x2)))
   A__SEL(s(x0), cons(x1, from(from(z0)))) -> c4(A__SEL(mark(x0), a__from(a__from(mark(z0)))), MARK(from(from(z0))))
   A__SEL(s(x0), cons(x1, from(sel(z0, z1)))) -> c4(A__SEL(mark(x0), a__from(a__sel(mark(z0), mark(z1)))), MARK(from(sel(z0, z1))))
   A__SEL(s(x0), cons(x1, from(cons(z0, z1)))) -> c4(A__SEL(mark(x0), a__from(cons(mark(z0), z1))), MARK(from(cons(z0, z1))))
   A__SEL(s(x0), cons(x1, from(s(z0)))) -> c4(A__SEL(mark(x0), a__from(s(mark(z0)))), MARK(from(s(z0))))
   A__SEL(s(x0), cons(x1, from(0))) -> c4(A__SEL(mark(x0), a__from(0)), MARK(from(0)))
   A__SEL(s(from(z0)), cons(x1, from(x2))) -> c4(A__SEL(a__from(mark(z0)), a__from(mark(x2))), MARK(from(x2)))
   A__SEL(s(sel(z0, z1)), cons(x1, from(x2))) -> c4(A__SEL(a__sel(mark(z0), mark(z1)), a__from(mark(x2))), MARK(from(x2)))
   A__SEL(s(s(z0)), cons(x1, from(x2))) -> c4(A__SEL(s(mark(z0)), a__from(mark(x2))), MARK(from(x2)))
   A__SEL(s(0), cons(x1, from(x2))) -> c4(A__SEL(0, a__from(mark(x2))), MARK(from(x2)))
   A__SEL(s(x0), cons(x1, from(x2))) -> c4(MARK(from(x2)))
   A__SEL(s(cons(z0, z1)), cons(x1, from(x2))) -> c4(MARK(from(x2)))
   A__SEL(s(x0), cons(x1, sel(x2, x3))) -> c4(A__SEL(mark(x0), sel(mark(x2), mark(x3))), MARK(sel(x2, x3)))
   A__SEL(s(x0), cons(x1, sel(x2, from(z0)))) -> c4(A__SEL(mark(x0), a__sel(mark(x2), a__from(mark(z0)))), MARK(sel(x2, from(z0))))
   A__SEL(s(x0), cons(x1, sel(x2, sel(z0, z1)))) -> c4(A__SEL(mark(x0), a__sel(mark(x2), a__sel(mark(z0), mark(z1)))), MARK(sel(x2, sel(z0, z1))))
   A__SEL(s(x0), cons(x1, sel(x2, cons(z0, z1)))) -> c4(A__SEL(mark(x0), a__sel(mark(x2), cons(mark(z0), z1))), MARK(sel(x2, cons(z0, z1))))
   A__SEL(s(x0), cons(x1, sel(x2, s(z0)))) -> c4(A__SEL(mark(x0), a__sel(mark(x2), s(mark(z0)))), MARK(sel(x2, s(z0))))
   A__SEL(s(x0), cons(x1, sel(x2, 0))) -> c4(A__SEL(mark(x0), a__sel(mark(x2), 0)), MARK(sel(x2, 0)))
   A__SEL(s(x0), cons(x1, sel(from(z0), x3))) -> c4(A__SEL(mark(x0), a__sel(a__from(mark(z0)), mark(x3))), MARK(sel(from(z0), x3)))
   A__SEL(s(x0), cons(x1, sel(sel(z0, z1), x3))) -> c4(A__SEL(mark(x0), a__sel(a__sel(mark(z0), mark(z1)), mark(x3))), MARK(sel(sel(z0, z1), x3)))
   A__SEL(s(x0), cons(x1, sel(cons(z0, z1), x3))) -> c4(A__SEL(mark(x0), a__sel(cons(mark(z0), z1), mark(x3))), MARK(sel(cons(z0, z1), x3)))
   A__SEL(s(x0), cons(x1, sel(s(z0), x3))) -> c4(A__SEL(mark(x0), a__sel(s(mark(z0)), mark(x3))), MARK(sel(s(z0), x3)))
   A__SEL(s(x0), cons(x1, sel(0, x3))) -> c4(A__SEL(mark(x0), a__sel(0, mark(x3))), MARK(sel(0, x3)))
   A__SEL(s(from(z0)), cons(x1, sel(x2, x3))) -> c4(A__SEL(a__from(mark(z0)), a__sel(mark(x2), mark(x3))), MARK(sel(x2, x3)))
   A__SEL(s(sel(z0, z1)), cons(x1, sel(x2, x3))) -> c4(A__SEL(a__sel(mark(z0), mark(z1)), a__sel(mark(x2), mark(x3))), MARK(sel(x2, x3)))
   A__SEL(s(cons(z0, z1)), cons(x1, sel(x2, x3))) -> c4(A__SEL(cons(mark(z0), z1), a__sel(mark(x2), mark(x3))), MARK(sel(x2, x3)))
   A__SEL(s(s(z0)), cons(x1, sel(x2, x3))) -> c4(A__SEL(s(mark(z0)), a__sel(mark(x2), mark(x3))), MARK(sel(x2, x3)))
   A__SEL(s(0), cons(x1, sel(x2, x3))) -> c4(A__SEL(0, a__sel(mark(x2), mark(x3))), MARK(sel(x2, x3)))
S tuples:
   A__FROM(z0) -> c(MARK(z0))
   A__SEL(0, cons(z0, z1)) -> c2(MARK(z0))
   MARK(from(z0)) -> c6(A__FROM(mark(z0)), MARK(z0))
   MARK(cons(z0, z1)) -> c9(MARK(z0))
   MARK(s(z0)) -> c10(MARK(z0))
   A__SEL(s(x0), cons(x1, s(z0))) -> c3(MARK(x0))
   A__SEL(s(x0), cons(x1, 0)) -> c3(MARK(x0))
   A__SEL(s(cons(z0, z1)), cons(x1, x2)) -> c3(MARK(cons(z0, z1)))
   A__SEL(s(x0), cons(x1, cons(z0, z1))) -> c4(A__SEL(mark(x0), cons(mark(z0), z1)), MARK(cons(z0, z1)))
   A__SEL(s(from(z0)), cons(x1, x2)) -> c4(A__SEL(a__from(mark(z0)), mark(x2)), MARK(x2))
   A__SEL(s(sel(z0, z1)), cons(x1, x2)) -> c4(A__SEL(a__sel(mark(z0), mark(z1)), mark(x2)), MARK(x2))
   A__SEL(s(s(z0)), cons(x1, x2)) -> c4(A__SEL(s(mark(z0)), mark(x2)), MARK(x2))
   A__SEL(s(0), cons(x1, x2)) -> c4(A__SEL(0, mark(x2)), MARK(x2))
   A__SEL(s(x0), cons(x1, s(z0))) -> c4(MARK(s(z0)))
   A__SEL(s(cons(z0, z1)), cons(x1, x2)) -> c4(MARK(x2))
   MARK(sel(x0, from(z0))) -> c7(A__SEL(mark(x0), a__from(mark(z0))), MARK(x0))
   MARK(sel(x0, sel(z0, z1))) -> c7(A__SEL(mark(x0), a__sel(mark(z0), mark(z1))), MARK(x0))
   MARK(sel(x0, cons(z0, z1))) -> c7(A__SEL(mark(x0), cons(mark(z0), z1)), MARK(x0))
   MARK(sel(from(z0), x1)) -> c7(A__SEL(a__from(mark(z0)), mark(x1)), MARK(from(z0)))
   MARK(sel(sel(z0, z1), x1)) -> c7(A__SEL(a__sel(mark(z0), mark(z1)), mark(x1)), MARK(sel(z0, z1)))
   MARK(sel(s(z0), x1)) -> c7(A__SEL(s(mark(z0)), mark(x1)), MARK(s(z0)))
   MARK(sel(x0, s(z0))) -> c7(MARK(x0))
   MARK(sel(x0, 0)) -> c7(MARK(x0))
   MARK(sel(cons(z0, z1), x1)) -> c7(MARK(cons(z0, z1)))
   MARK(sel(0, x1)) -> c7(A__SEL(0, mark(x1)))
   MARK(sel(x0, from(z0))) -> c8(A__SEL(mark(x0), a__from(mark(z0))), MARK(from(z0)))
   MARK(sel(x0, sel(z0, z1))) -> c8(A__SEL(mark(x0), a__sel(mark(z0), mark(z1))), MARK(sel(z0, z1)))
   MARK(sel(x0, cons(z0, z1))) -> c8(A__SEL(mark(x0), cons(mark(z0), z1)), MARK(cons(z0, z1)))
   MARK(sel(from(z0), x1)) -> c8(A__SEL(a__from(mark(z0)), mark(x1)), MARK(x1))
   MARK(sel(sel(z0, z1), x1)) -> c8(A__SEL(a__sel(mark(z0), mark(z1)), mark(x1)), MARK(x1))
   MARK(sel(s(z0), x1)) -> c8(A__SEL(s(mark(z0)), mark(x1)), MARK(x1))
   MARK(sel(0, x1)) -> c8(A__SEL(0, mark(x1)), MARK(x1))
   MARK(sel(x0, s(z0))) -> c8(MARK(s(z0)))
   MARK(sel(cons(z0, z1), x1)) -> c8(MARK(x1))
   A__SEL(s(x0), cons(x1, from(x2))) -> c3(A__SEL(mark(x0), cons(mark(mark(x2)), from(s(mark(x2))))), MARK(x0))
   A__SEL(s(x0), cons(x1, from(from(z0)))) -> c3(A__SEL(mark(x0), a__from(a__from(mark(z0)))), MARK(x0))
   A__SEL(s(x0), cons(x1, from(sel(z0, z1)))) -> c3(A__SEL(mark(x0), a__from(a__sel(mark(z0), mark(z1)))), MARK(x0))
   A__SEL(s(x0), cons(x1, from(cons(z0, z1)))) -> c3(A__SEL(mark(x0), a__from(cons(mark(z0), z1))), MARK(x0))
   A__SEL(s(x0), cons(x1, from(s(z0)))) -> c3(A__SEL(mark(x0), a__from(s(mark(z0)))), MARK(x0))
   A__SEL(s(x0), cons(x1, from(0))) -> c3(A__SEL(mark(x0), a__from(0)), MARK(x0))
   A__SEL(s(from(z0)), cons(x1, from(x2))) -> c3(A__SEL(a__from(mark(z0)), a__from(mark(x2))), MARK(from(z0)))
   A__SEL(s(sel(z0, z1)), cons(x1, from(x2))) -> c3(A__SEL(a__sel(mark(z0), mark(z1)), a__from(mark(x2))), MARK(sel(z0, z1)))
   A__SEL(s(s(z0)), cons(x1, from(x2))) -> c3(A__SEL(s(mark(z0)), a__from(mark(x2))), MARK(s(z0)))
   A__SEL(s(x0), cons(x1, from(x2))) -> c3(MARK(x0))
   A__SEL(s(cons(z0, z1)), cons(x1, from(x2))) -> c3(MARK(cons(z0, z1)))
   A__SEL(s(0), cons(x1, from(x2))) -> c3(A__SEL(0, a__from(mark(x2))))
   A__SEL(s(x0), cons(x1, sel(x2, from(z0)))) -> c3(A__SEL(mark(x0), a__sel(mark(x2), a__from(mark(z0)))), MARK(x0))
   A__SEL(s(x0), cons(x1, sel(x2, sel(z0, z1)))) -> c3(A__SEL(mark(x0), a__sel(mark(x2), a__sel(mark(z0), mark(z1)))), MARK(x0))
   A__SEL(s(x0), cons(x1, sel(x2, cons(z0, z1)))) -> c3(A__SEL(mark(x0), a__sel(mark(x2), cons(mark(z0), z1))), MARK(x0))
   A__SEL(s(x0), cons(x1, sel(x2, s(z0)))) -> c3(A__SEL(mark(x0), a__sel(mark(x2), s(mark(z0)))), MARK(x0))
   A__SEL(s(x0), cons(x1, sel(x2, 0))) -> c3(A__SEL(mark(x0), a__sel(mark(x2), 0)), MARK(x0))
   A__SEL(s(x0), cons(x1, sel(from(z0), x3))) -> c3(A__SEL(mark(x0), a__sel(a__from(mark(z0)), mark(x3))), MARK(x0))
   A__SEL(s(x0), cons(x1, sel(sel(z0, z1), x3))) -> c3(A__SEL(mark(x0), a__sel(a__sel(mark(z0), mark(z1)), mark(x3))), MARK(x0))
   A__SEL(s(x0), cons(x1, sel(cons(z0, z1), x3))) -> c3(A__SEL(mark(x0), a__sel(cons(mark(z0), z1), mark(x3))), MARK(x0))
   A__SEL(s(x0), cons(x1, sel(s(z0), x3))) -> c3(A__SEL(mark(x0), a__sel(s(mark(z0)), mark(x3))), MARK(x0))
   A__SEL(s(x0), cons(x1, sel(0, x3))) -> c3(A__SEL(mark(x0), a__sel(0, mark(x3))), MARK(x0))
   A__SEL(s(from(z0)), cons(x1, sel(x2, x3))) -> c3(A__SEL(a__from(mark(z0)), a__sel(mark(x2), mark(x3))), MARK(from(z0)))
   A__SEL(s(sel(z0, z1)), cons(x1, sel(x2, x3))) -> c3(A__SEL(a__sel(mark(z0), mark(z1)), a__sel(mark(x2), mark(x3))), MARK(sel(z0, z1)))
   A__SEL(s(s(z0)), cons(x1, sel(x2, x3))) -> c3(A__SEL(s(mark(z0)), a__sel(mark(x2), mark(x3))), MARK(s(z0)))
   A__SEL(s(x0), cons(x1, sel(x2, x3))) -> c3(MARK(x0))
   A__SEL(s(cons(z0, z1)), cons(x1, sel(x2, x3))) -> c3(MARK(cons(z0, z1)))
   A__SEL(s(0), cons(x1, sel(x2, x3))) -> c3(A__SEL(0, a__sel(mark(x2), mark(x3))))
   A__SEL(s(x0), cons(x1, cons(from(z0), x3))) -> c3(A__SEL(mark(x0), cons(a__from(mark(z0)), x3)), MARK(x0))
   A__SEL(s(x0), cons(x1, cons(sel(z0, z1), x3))) -> c3(A__SEL(mark(x0), cons(a__sel(mark(z0), mark(z1)), x3)), MARK(x0))
   A__SEL(s(x0), cons(x1, cons(cons(z0, z1), x3))) -> c3(A__SEL(mark(x0), cons(cons(mark(z0), z1), x3)), MARK(x0))
   A__SEL(s(x0), cons(x1, cons(s(z0), x3))) -> c3(A__SEL(mark(x0), cons(s(mark(z0)), x3)), MARK(x0))
   A__SEL(s(x0), cons(x1, cons(0, x3))) -> c3(A__SEL(mark(x0), cons(0, x3)), MARK(x0))
   A__SEL(s(from(z0)), cons(x1, cons(x2, x3))) -> c3(A__SEL(a__from(mark(z0)), cons(mark(x2), x3)), MARK(from(z0)))
   A__SEL(s(sel(z0, z1)), cons(x1, cons(x2, x3))) -> c3(A__SEL(a__sel(mark(z0), mark(z1)), cons(mark(x2), x3)), MARK(sel(z0, z1)))
   A__SEL(s(s(z0)), cons(x1, cons(x2, x3))) -> c3(A__SEL(s(mark(z0)), cons(mark(x2), x3)), MARK(s(z0)))
   A__SEL(s(cons(z0, z1)), cons(x1, cons(x2, x3))) -> c3(MARK(cons(z0, z1)))
   A__SEL(s(0), cons(x1, cons(x2, x3))) -> c3(A__SEL(0, cons(mark(x2), x3)))
   A__SEL(s(from(from(z0))), cons(x1, x2)) -> c3(A__SEL(a__from(a__from(mark(z0))), mark(x2)), MARK(from(from(z0))))
   A__SEL(s(from(sel(z0, z1))), cons(x1, x2)) -> c3(A__SEL(a__from(a__sel(mark(z0), mark(z1))), mark(x2)), MARK(from(sel(z0, z1))))
   A__SEL(s(from(cons(z0, z1))), cons(x1, x2)) -> c3(A__SEL(a__from(cons(mark(z0), z1)), mark(x2)), MARK(from(cons(z0, z1))))
   A__SEL(s(from(s(z0))), cons(x1, x2)) -> c3(A__SEL(a__from(s(mark(z0))), mark(x2)), MARK(from(s(z0))))
   A__SEL(s(from(0)), cons(x1, x2)) -> c3(A__SEL(a__from(0), mark(x2)), MARK(from(0)))
   A__SEL(s(from(x0)), cons(x1, x2)) -> c3(MARK(from(x0)))
   A__SEL(s(from(x0)), cons(x1, s(z0))) -> c3(MARK(from(x0)))
   A__SEL(s(from(x0)), cons(x1, 0)) -> c3(MARK(from(x0)))
   A__SEL(s(sel(x0, from(z0))), cons(x2, x3)) -> c3(A__SEL(a__sel(mark(x0), a__from(mark(z0))), mark(x3)), MARK(sel(x0, from(z0))))
   A__SEL(s(sel(x0, sel(z0, z1))), cons(x2, x3)) -> c3(A__SEL(a__sel(mark(x0), a__sel(mark(z0), mark(z1))), mark(x3)), MARK(sel(x0, sel(z0, z1))))
   A__SEL(s(sel(x0, cons(z0, z1))), cons(x2, x3)) -> c3(A__SEL(a__sel(mark(x0), cons(mark(z0), z1)), mark(x3)), MARK(sel(x0, cons(z0, z1))))
   A__SEL(s(sel(x0, s(z0))), cons(x2, x3)) -> c3(A__SEL(a__sel(mark(x0), s(mark(z0))), mark(x3)), MARK(sel(x0, s(z0))))
   A__SEL(s(sel(x0, 0)), cons(x2, x3)) -> c3(A__SEL(a__sel(mark(x0), 0), mark(x3)), MARK(sel(x0, 0)))
   A__SEL(s(sel(from(z0), x1)), cons(x2, x3)) -> c3(A__SEL(a__sel(a__from(mark(z0)), mark(x1)), mark(x3)), MARK(sel(from(z0), x1)))
   A__SEL(s(sel(sel(z0, z1), x1)), cons(x2, x3)) -> c3(A__SEL(a__sel(a__sel(mark(z0), mark(z1)), mark(x1)), mark(x3)), MARK(sel(sel(z0, z1), x1)))
   A__SEL(s(sel(cons(z0, z1), x1)), cons(x2, x3)) -> c3(A__SEL(a__sel(cons(mark(z0), z1), mark(x1)), mark(x3)), MARK(sel(cons(z0, z1), x1)))
   A__SEL(s(sel(s(z0), x1)), cons(x2, x3)) -> c3(A__SEL(a__sel(s(mark(z0)), mark(x1)), mark(x3)), MARK(sel(s(z0), x1)))
   A__SEL(s(sel(0, x1)), cons(x2, x3)) -> c3(A__SEL(a__sel(0, mark(x1)), mark(x3)), MARK(sel(0, x1)))
   A__SEL(s(sel(x0, x1)), cons(x2, s(z0))) -> c3(MARK(sel(x0, x1)))
   A__SEL(s(sel(x0, x1)), cons(x2, 0)) -> c3(MARK(sel(x0, x1)))
   A__SEL(s(sel(x0, x1)), cons(x2, x3)) -> c3(MARK(sel(x0, x1)))
   A__SEL(s(s(from(z0))), cons(x1, x2)) -> c3(A__SEL(s(a__from(mark(z0))), mark(x2)), MARK(s(from(z0))))
   A__SEL(s(s(sel(z0, z1))), cons(x1, x2)) -> c3(A__SEL(s(a__sel(mark(z0), mark(z1))), mark(x2)), MARK(s(sel(z0, z1))))
   A__SEL(s(s(cons(z0, z1))), cons(x1, x2)) -> c3(A__SEL(s(cons(mark(z0), z1)), mark(x2)), MARK(s(cons(z0, z1))))
   A__SEL(s(s(s(z0))), cons(x1, x2)) -> c3(A__SEL(s(s(mark(z0))), mark(x2)), MARK(s(s(z0))))
   A__SEL(s(s(0)), cons(x1, x2)) -> c3(A__SEL(s(0), mark(x2)), MARK(s(0)))
   A__SEL(s(s(x0)), cons(x1, x2)) -> c3(MARK(s(x0)))
   A__SEL(s(s(x0)), cons(x1, s(z0))) -> c3(MARK(s(x0)))
   A__SEL(s(s(x0)), cons(x1, 0)) -> c3(MARK(s(x0)))
   A__SEL(s(x0), cons(x1, from(x2))) -> c4(A__SEL(mark(x0), cons(mark(mark(x2)), from(s(mark(x2))))), MARK(from(x2)))
   A__SEL(s(x0), cons(x1, from(from(z0)))) -> c4(A__SEL(mark(x0), a__from(a__from(mark(z0)))), MARK(from(from(z0))))
   A__SEL(s(x0), cons(x1, from(sel(z0, z1)))) -> c4(A__SEL(mark(x0), a__from(a__sel(mark(z0), mark(z1)))), MARK(from(sel(z0, z1))))
   A__SEL(s(x0), cons(x1, from(cons(z0, z1)))) -> c4(A__SEL(mark(x0), a__from(cons(mark(z0), z1))), MARK(from(cons(z0, z1))))
   A__SEL(s(x0), cons(x1, from(s(z0)))) -> c4(A__SEL(mark(x0), a__from(s(mark(z0)))), MARK(from(s(z0))))
   A__SEL(s(x0), cons(x1, from(0))) -> c4(A__SEL(mark(x0), a__from(0)), MARK(from(0)))
   A__SEL(s(from(z0)), cons(x1, from(x2))) -> c4(A__SEL(a__from(mark(z0)), a__from(mark(x2))), MARK(from(x2)))
   A__SEL(s(sel(z0, z1)), cons(x1, from(x2))) -> c4(A__SEL(a__sel(mark(z0), mark(z1)), a__from(mark(x2))), MARK(from(x2)))
   A__SEL(s(s(z0)), cons(x1, from(x2))) -> c4(A__SEL(s(mark(z0)), a__from(mark(x2))), MARK(from(x2)))
   A__SEL(s(0), cons(x1, from(x2))) -> c4(A__SEL(0, a__from(mark(x2))), MARK(from(x2)))
   A__SEL(s(x0), cons(x1, from(x2))) -> c4(MARK(from(x2)))
   A__SEL(s(cons(z0, z1)), cons(x1, from(x2))) -> c4(MARK(from(x2)))
   A__SEL(s(x0), cons(x1, sel(x2, x3))) -> c4(A__SEL(mark(x0), sel(mark(x2), mark(x3))), MARK(sel(x2, x3)))
   A__SEL(s(x0), cons(x1, sel(x2, from(z0)))) -> c4(A__SEL(mark(x0), a__sel(mark(x2), a__from(mark(z0)))), MARK(sel(x2, from(z0))))
   A__SEL(s(x0), cons(x1, sel(x2, sel(z0, z1)))) -> c4(A__SEL(mark(x0), a__sel(mark(x2), a__sel(mark(z0), mark(z1)))), MARK(sel(x2, sel(z0, z1))))
   A__SEL(s(x0), cons(x1, sel(x2, cons(z0, z1)))) -> c4(A__SEL(mark(x0), a__sel(mark(x2), cons(mark(z0), z1))), MARK(sel(x2, cons(z0, z1))))
   A__SEL(s(x0), cons(x1, sel(x2, s(z0)))) -> c4(A__SEL(mark(x0), a__sel(mark(x2), s(mark(z0)))), MARK(sel(x2, s(z0))))
   A__SEL(s(x0), cons(x1, sel(x2, 0))) -> c4(A__SEL(mark(x0), a__sel(mark(x2), 0)), MARK(sel(x2, 0)))
   A__SEL(s(x0), cons(x1, sel(from(z0), x3))) -> c4(A__SEL(mark(x0), a__sel(a__from(mark(z0)), mark(x3))), MARK(sel(from(z0), x3)))
   A__SEL(s(x0), cons(x1, sel(sel(z0, z1), x3))) -> c4(A__SEL(mark(x0), a__sel(a__sel(mark(z0), mark(z1)), mark(x3))), MARK(sel(sel(z0, z1), x3)))
   A__SEL(s(x0), cons(x1, sel(cons(z0, z1), x3))) -> c4(A__SEL(mark(x0), a__sel(cons(mark(z0), z1), mark(x3))), MARK(sel(cons(z0, z1), x3)))
   A__SEL(s(x0), cons(x1, sel(s(z0), x3))) -> c4(A__SEL(mark(x0), a__sel(s(mark(z0)), mark(x3))), MARK(sel(s(z0), x3)))
   A__SEL(s(x0), cons(x1, sel(0, x3))) -> c4(A__SEL(mark(x0), a__sel(0, mark(x3))), MARK(sel(0, x3)))
   A__SEL(s(from(z0)), cons(x1, sel(x2, x3))) -> c4(A__SEL(a__from(mark(z0)), a__sel(mark(x2), mark(x3))), MARK(sel(x2, x3)))
   A__SEL(s(sel(z0, z1)), cons(x1, sel(x2, x3))) -> c4(A__SEL(a__sel(mark(z0), mark(z1)), a__sel(mark(x2), mark(x3))), MARK(sel(x2, x3)))
   A__SEL(s(cons(z0, z1)), cons(x1, sel(x2, x3))) -> c4(A__SEL(cons(mark(z0), z1), a__sel(mark(x2), mark(x3))), MARK(sel(x2, x3)))
   A__SEL(s(s(z0)), cons(x1, sel(x2, x3))) -> c4(A__SEL(s(mark(z0)), a__sel(mark(x2), mark(x3))), MARK(sel(x2, x3)))
   A__SEL(s(0), cons(x1, sel(x2, x3))) -> c4(A__SEL(0, a__sel(mark(x2), mark(x3))), MARK(sel(x2, x3)))
K tuples:none
Defined Rule Symbols:   a__from_1, a__sel_2, mark_1

Defined Pair Symbols:   A__FROM_1, A__SEL_2, MARK_1

Compound Symbols:   c_1, c2_1, c6_2, c9_1, c10_1, c3_1, c4_2, c4_1, c7_2, c7_1, c8_2, c8_1, c3_2


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

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

(112)
Obligation:
Complexity Dependency Tuples Problem

Rules:
   a__from(z0) -> cons(mark(z0), from(s(z0)))
   a__from(z0) -> from(z0)
   a__sel(0, cons(z0, z1)) -> mark(z0)
   a__sel(s(z0), cons(z1, z2)) -> a__sel(mark(z0), mark(z2))
   a__sel(z0, z1) -> sel(z0, z1)
   mark(from(z0)) -> a__from(mark(z0))
   mark(sel(z0, z1)) -> a__sel(mark(z0), mark(z1))
   mark(cons(z0, z1)) -> cons(mark(z0), z1)
   mark(s(z0)) -> s(mark(z0))
   mark(0) -> 0
Tuples:
   A__FROM(z0) -> c(MARK(z0))
   A__SEL(0, cons(z0, z1)) -> c2(MARK(z0))
   MARK(from(z0)) -> c6(A__FROM(mark(z0)), MARK(z0))
   MARK(cons(z0, z1)) -> c9(MARK(z0))
   MARK(s(z0)) -> c10(MARK(z0))
   A__SEL(s(x0), cons(x1, s(z0))) -> c3(MARK(x0))
   A__SEL(s(x0), cons(x1, 0)) -> c3(MARK(x0))
   A__SEL(s(cons(z0, z1)), cons(x1, x2)) -> c3(MARK(cons(z0, z1)))
   A__SEL(s(x0), cons(x1, cons(z0, z1))) -> c4(A__SEL(mark(x0), cons(mark(z0), z1)), MARK(cons(z0, z1)))
   A__SEL(s(from(z0)), cons(x1, x2)) -> c4(A__SEL(a__from(mark(z0)), mark(x2)), MARK(x2))
   A__SEL(s(sel(z0, z1)), cons(x1, x2)) -> c4(A__SEL(a__sel(mark(z0), mark(z1)), mark(x2)), MARK(x2))
   A__SEL(s(s(z0)), cons(x1, x2)) -> c4(A__SEL(s(mark(z0)), mark(x2)), MARK(x2))
   A__SEL(s(0), cons(x1, x2)) -> c4(A__SEL(0, mark(x2)), MARK(x2))
   A__SEL(s(x0), cons(x1, s(z0))) -> c4(MARK(s(z0)))
   A__SEL(s(cons(z0, z1)), cons(x1, x2)) -> c4(MARK(x2))
   MARK(sel(x0, from(z0))) -> c7(A__SEL(mark(x0), a__from(mark(z0))), MARK(x0))
   MARK(sel(x0, sel(z0, z1))) -> c7(A__SEL(mark(x0), a__sel(mark(z0), mark(z1))), MARK(x0))
   MARK(sel(x0, cons(z0, z1))) -> c7(A__SEL(mark(x0), cons(mark(z0), z1)), MARK(x0))
   MARK(sel(from(z0), x1)) -> c7(A__SEL(a__from(mark(z0)), mark(x1)), MARK(from(z0)))
   MARK(sel(sel(z0, z1), x1)) -> c7(A__SEL(a__sel(mark(z0), mark(z1)), mark(x1)), MARK(sel(z0, z1)))
   MARK(sel(s(z0), x1)) -> c7(A__SEL(s(mark(z0)), mark(x1)), MARK(s(z0)))
   MARK(sel(x0, s(z0))) -> c7(MARK(x0))
   MARK(sel(x0, 0)) -> c7(MARK(x0))
   MARK(sel(cons(z0, z1), x1)) -> c7(MARK(cons(z0, z1)))
   MARK(sel(0, x1)) -> c7(A__SEL(0, mark(x1)))
   MARK(sel(x0, from(z0))) -> c8(A__SEL(mark(x0), a__from(mark(z0))), MARK(from(z0)))
   MARK(sel(x0, sel(z0, z1))) -> c8(A__SEL(mark(x0), a__sel(mark(z0), mark(z1))), MARK(sel(z0, z1)))
   MARK(sel(x0, cons(z0, z1))) -> c8(A__SEL(mark(x0), cons(mark(z0), z1)), MARK(cons(z0, z1)))
   MARK(sel(from(z0), x1)) -> c8(A__SEL(a__from(mark(z0)), mark(x1)), MARK(x1))
   MARK(sel(sel(z0, z1), x1)) -> c8(A__SEL(a__sel(mark(z0), mark(z1)), mark(x1)), MARK(x1))
   MARK(sel(s(z0), x1)) -> c8(A__SEL(s(mark(z0)), mark(x1)), MARK(x1))
   MARK(sel(0, x1)) -> c8(A__SEL(0, mark(x1)), MARK(x1))
   MARK(sel(x0, s(z0))) -> c8(MARK(s(z0)))
   MARK(sel(cons(z0, z1), x1)) -> c8(MARK(x1))
   A__SEL(s(x0), cons(x1, from(x2))) -> c3(A__SEL(mark(x0), cons(mark(mark(x2)), from(s(mark(x2))))), MARK(x0))
   A__SEL(s(x0), cons(x1, from(from(z0)))) -> c3(A__SEL(mark(x0), a__from(a__from(mark(z0)))), MARK(x0))
   A__SEL(s(x0), cons(x1, from(sel(z0, z1)))) -> c3(A__SEL(mark(x0), a__from(a__sel(mark(z0), mark(z1)))), MARK(x0))
   A__SEL(s(x0), cons(x1, from(cons(z0, z1)))) -> c3(A__SEL(mark(x0), a__from(cons(mark(z0), z1))), MARK(x0))
   A__SEL(s(x0), cons(x1, from(s(z0)))) -> c3(A__SEL(mark(x0), a__from(s(mark(z0)))), MARK(x0))
   A__SEL(s(x0), cons(x1, from(0))) -> c3(A__SEL(mark(x0), a__from(0)), MARK(x0))
   A__SEL(s(from(z0)), cons(x1, from(x2))) -> c3(A__SEL(a__from(mark(z0)), a__from(mark(x2))), MARK(from(z0)))
   A__SEL(s(sel(z0, z1)), cons(x1, from(x2))) -> c3(A__SEL(a__sel(mark(z0), mark(z1)), a__from(mark(x2))), MARK(sel(z0, z1)))
   A__SEL(s(s(z0)), cons(x1, from(x2))) -> c3(A__SEL(s(mark(z0)), a__from(mark(x2))), MARK(s(z0)))
   A__SEL(s(x0), cons(x1, from(x2))) -> c3(MARK(x0))
   A__SEL(s(cons(z0, z1)), cons(x1, from(x2))) -> c3(MARK(cons(z0, z1)))
   A__SEL(s(0), cons(x1, from(x2))) -> c3(A__SEL(0, a__from(mark(x2))))
   A__SEL(s(x0), cons(x1, sel(x2, from(z0)))) -> c3(A__SEL(mark(x0), a__sel(mark(x2), a__from(mark(z0)))), MARK(x0))
   A__SEL(s(x0), cons(x1, sel(x2, sel(z0, z1)))) -> c3(A__SEL(mark(x0), a__sel(mark(x2), a__sel(mark(z0), mark(z1)))), MARK(x0))
   A__SEL(s(x0), cons(x1, sel(x2, cons(z0, z1)))) -> c3(A__SEL(mark(x0), a__sel(mark(x2), cons(mark(z0), z1))), MARK(x0))
   A__SEL(s(x0), cons(x1, sel(x2, s(z0)))) -> c3(A__SEL(mark(x0), a__sel(mark(x2), s(mark(z0)))), MARK(x0))
   A__SEL(s(x0), cons(x1, sel(x2, 0))) -> c3(A__SEL(mark(x0), a__sel(mark(x2), 0)), MARK(x0))
   A__SEL(s(x0), cons(x1, sel(from(z0), x3))) -> c3(A__SEL(mark(x0), a__sel(a__from(mark(z0)), mark(x3))), MARK(x0))
   A__SEL(s(x0), cons(x1, sel(sel(z0, z1), x3))) -> c3(A__SEL(mark(x0), a__sel(a__sel(mark(z0), mark(z1)), mark(x3))), MARK(x0))
   A__SEL(s(x0), cons(x1, sel(cons(z0, z1), x3))) -> c3(A__SEL(mark(x0), a__sel(cons(mark(z0), z1), mark(x3))), MARK(x0))
   A__SEL(s(x0), cons(x1, sel(s(z0), x3))) -> c3(A__SEL(mark(x0), a__sel(s(mark(z0)), mark(x3))), MARK(x0))
   A__SEL(s(x0), cons(x1, sel(0, x3))) -> c3(A__SEL(mark(x0), a__sel(0, mark(x3))), MARK(x0))
   A__SEL(s(from(z0)), cons(x1, sel(x2, x3))) -> c3(A__SEL(a__from(mark(z0)), a__sel(mark(x2), mark(x3))), MARK(from(z0)))
   A__SEL(s(sel(z0, z1)), cons(x1, sel(x2, x3))) -> c3(A__SEL(a__sel(mark(z0), mark(z1)), a__sel(mark(x2), mark(x3))), MARK(sel(z0, z1)))
   A__SEL(s(s(z0)), cons(x1, sel(x2, x3))) -> c3(A__SEL(s(mark(z0)), a__sel(mark(x2), mark(x3))), MARK(s(z0)))
   A__SEL(s(x0), cons(x1, sel(x2, x3))) -> c3(MARK(x0))
   A__SEL(s(cons(z0, z1)), cons(x1, sel(x2, x3))) -> c3(MARK(cons(z0, z1)))
   A__SEL(s(0), cons(x1, sel(x2, x3))) -> c3(A__SEL(0, a__sel(mark(x2), mark(x3))))
   A__SEL(s(x0), cons(x1, cons(from(z0), x3))) -> c3(A__SEL(mark(x0), cons(a__from(mark(z0)), x3)), MARK(x0))
   A__SEL(s(x0), cons(x1, cons(sel(z0, z1), x3))) -> c3(A__SEL(mark(x0), cons(a__sel(mark(z0), mark(z1)), x3)), MARK(x0))
   A__SEL(s(x0), cons(x1, cons(cons(z0, z1), x3))) -> c3(A__SEL(mark(x0), cons(cons(mark(z0), z1), x3)), MARK(x0))
   A__SEL(s(x0), cons(x1, cons(s(z0), x3))) -> c3(A__SEL(mark(x0), cons(s(mark(z0)), x3)), MARK(x0))
   A__SEL(s(x0), cons(x1, cons(0, x3))) -> c3(A__SEL(mark(x0), cons(0, x3)), MARK(x0))
   A__SEL(s(from(z0)), cons(x1, cons(x2, x3))) -> c3(A__SEL(a__from(mark(z0)), cons(mark(x2), x3)), MARK(from(z0)))
   A__SEL(s(sel(z0, z1)), cons(x1, cons(x2, x3))) -> c3(A__SEL(a__sel(mark(z0), mark(z1)), cons(mark(x2), x3)), MARK(sel(z0, z1)))
   A__SEL(s(s(z0)), cons(x1, cons(x2, x3))) -> c3(A__SEL(s(mark(z0)), cons(mark(x2), x3)), MARK(s(z0)))
   A__SEL(s(cons(z0, z1)), cons(x1, cons(x2, x3))) -> c3(MARK(cons(z0, z1)))
   A__SEL(s(0), cons(x1, cons(x2, x3))) -> c3(A__SEL(0, cons(mark(x2), x3)))
   A__SEL(s(from(from(z0))), cons(x1, x2)) -> c3(A__SEL(a__from(a__from(mark(z0))), mark(x2)), MARK(from(from(z0))))
   A__SEL(s(from(sel(z0, z1))), cons(x1, x2)) -> c3(A__SEL(a__from(a__sel(mark(z0), mark(z1))), mark(x2)), MARK(from(sel(z0, z1))))
   A__SEL(s(from(cons(z0, z1))), cons(x1, x2)) -> c3(A__SEL(a__from(cons(mark(z0), z1)), mark(x2)), MARK(from(cons(z0, z1))))
   A__SEL(s(from(s(z0))), cons(x1, x2)) -> c3(A__SEL(a__from(s(mark(z0))), mark(x2)), MARK(from(s(z0))))
   A__SEL(s(from(0)), cons(x1, x2)) -> c3(A__SEL(a__from(0), mark(x2)), MARK(from(0)))
   A__SEL(s(from(x0)), cons(x1, x2)) -> c3(MARK(from(x0)))
   A__SEL(s(from(x0)), cons(x1, s(z0))) -> c3(MARK(from(x0)))
   A__SEL(s(from(x0)), cons(x1, 0)) -> c3(MARK(from(x0)))
   A__SEL(s(sel(x0, from(z0))), cons(x2, x3)) -> c3(A__SEL(a__sel(mark(x0), a__from(mark(z0))), mark(x3)), MARK(sel(x0, from(z0))))
   A__SEL(s(sel(x0, sel(z0, z1))), cons(x2, x3)) -> c3(A__SEL(a__sel(mark(x0), a__sel(mark(z0), mark(z1))), mark(x3)), MARK(sel(x0, sel(z0, z1))))
   A__SEL(s(sel(x0, cons(z0, z1))), cons(x2, x3)) -> c3(A__SEL(a__sel(mark(x0), cons(mark(z0), z1)), mark(x3)), MARK(sel(x0, cons(z0, z1))))
   A__SEL(s(sel(x0, s(z0))), cons(x2, x3)) -> c3(A__SEL(a__sel(mark(x0), s(mark(z0))), mark(x3)), MARK(sel(x0, s(z0))))
   A__SEL(s(sel(x0, 0)), cons(x2, x3)) -> c3(A__SEL(a__sel(mark(x0), 0), mark(x3)), MARK(sel(x0, 0)))
   A__SEL(s(sel(from(z0), x1)), cons(x2, x3)) -> c3(A__SEL(a__sel(a__from(mark(z0)), mark(x1)), mark(x3)), MARK(sel(from(z0), x1)))
   A__SEL(s(sel(sel(z0, z1), x1)), cons(x2, x3)) -> c3(A__SEL(a__sel(a__sel(mark(z0), mark(z1)), mark(x1)), mark(x3)), MARK(sel(sel(z0, z1), x1)))
   A__SEL(s(sel(cons(z0, z1), x1)), cons(x2, x3)) -> c3(A__SEL(a__sel(cons(mark(z0), z1), mark(x1)), mark(x3)), MARK(sel(cons(z0, z1), x1)))
   A__SEL(s(sel(s(z0), x1)), cons(x2, x3)) -> c3(A__SEL(a__sel(s(mark(z0)), mark(x1)), mark(x3)), MARK(sel(s(z0), x1)))
   A__SEL(s(sel(0, x1)), cons(x2, x3)) -> c3(A__SEL(a__sel(0, mark(x1)), mark(x3)), MARK(sel(0, x1)))
   A__SEL(s(sel(x0, x1)), cons(x2, s(z0))) -> c3(MARK(sel(x0, x1)))
   A__SEL(s(sel(x0, x1)), cons(x2, 0)) -> c3(MARK(sel(x0, x1)))
   A__SEL(s(sel(x0, x1)), cons(x2, x3)) -> c3(MARK(sel(x0, x1)))
   A__SEL(s(s(from(z0))), cons(x1, x2)) -> c3(A__SEL(s(a__from(mark(z0))), mark(x2)), MARK(s(from(z0))))
   A__SEL(s(s(sel(z0, z1))), cons(x1, x2)) -> c3(A__SEL(s(a__sel(mark(z0), mark(z1))), mark(x2)), MARK(s(sel(z0, z1))))
   A__SEL(s(s(cons(z0, z1))), cons(x1, x2)) -> c3(A__SEL(s(cons(mark(z0), z1)), mark(x2)), MARK(s(cons(z0, z1))))
   A__SEL(s(s(s(z0))), cons(x1, x2)) -> c3(A__SEL(s(s(mark(z0))), mark(x2)), MARK(s(s(z0))))
   A__SEL(s(s(0)), cons(x1, x2)) -> c3(A__SEL(s(0), mark(x2)), MARK(s(0)))
   A__SEL(s(s(x0)), cons(x1, x2)) -> c3(MARK(s(x0)))
   A__SEL(s(s(x0)), cons(x1, s(z0))) -> c3(MARK(s(x0)))
   A__SEL(s(s(x0)), cons(x1, 0)) -> c3(MARK(s(x0)))
   A__SEL(s(x0), cons(x1, from(x2))) -> c4(A__SEL(mark(x0), cons(mark(mark(x2)), from(s(mark(x2))))), MARK(from(x2)))
   A__SEL(s(x0), cons(x1, from(from(z0)))) -> c4(A__SEL(mark(x0), a__from(a__from(mark(z0)))), MARK(from(from(z0))))
   A__SEL(s(x0), cons(x1, from(sel(z0, z1)))) -> c4(A__SEL(mark(x0), a__from(a__sel(mark(z0), mark(z1)))), MARK(from(sel(z0, z1))))
   A__SEL(s(x0), cons(x1, from(cons(z0, z1)))) -> c4(A__SEL(mark(x0), a__from(cons(mark(z0), z1))), MARK(from(cons(z0, z1))))
   A__SEL(s(x0), cons(x1, from(s(z0)))) -> c4(A__SEL(mark(x0), a__from(s(mark(z0)))), MARK(from(s(z0))))
   A__SEL(s(x0), cons(x1, from(0))) -> c4(A__SEL(mark(x0), a__from(0)), MARK(from(0)))
   A__SEL(s(from(z0)), cons(x1, from(x2))) -> c4(A__SEL(a__from(mark(z0)), a__from(mark(x2))), MARK(from(x2)))
   A__SEL(s(sel(z0, z1)), cons(x1, from(x2))) -> c4(A__SEL(a__sel(mark(z0), mark(z1)), a__from(mark(x2))), MARK(from(x2)))
   A__SEL(s(s(z0)), cons(x1, from(x2))) -> c4(A__SEL(s(mark(z0)), a__from(mark(x2))), MARK(from(x2)))
   A__SEL(s(0), cons(x1, from(x2))) -> c4(A__SEL(0, a__from(mark(x2))), MARK(from(x2)))
   A__SEL(s(x0), cons(x1, from(x2))) -> c4(MARK(from(x2)))
   A__SEL(s(cons(z0, z1)), cons(x1, from(x2))) -> c4(MARK(from(x2)))
   A__SEL(s(x0), cons(x1, sel(x2, from(z0)))) -> c4(A__SEL(mark(x0), a__sel(mark(x2), a__from(mark(z0)))), MARK(sel(x2, from(z0))))
   A__SEL(s(x0), cons(x1, sel(x2, sel(z0, z1)))) -> c4(A__SEL(mark(x0), a__sel(mark(x2), a__sel(mark(z0), mark(z1)))), MARK(sel(x2, sel(z0, z1))))
   A__SEL(s(x0), cons(x1, sel(x2, cons(z0, z1)))) -> c4(A__SEL(mark(x0), a__sel(mark(x2), cons(mark(z0), z1))), MARK(sel(x2, cons(z0, z1))))
   A__SEL(s(x0), cons(x1, sel(x2, s(z0)))) -> c4(A__SEL(mark(x0), a__sel(mark(x2), s(mark(z0)))), MARK(sel(x2, s(z0))))
   A__SEL(s(x0), cons(x1, sel(x2, 0))) -> c4(A__SEL(mark(x0), a__sel(mark(x2), 0)), MARK(sel(x2, 0)))
   A__SEL(s(x0), cons(x1, sel(from(z0), x3))) -> c4(A__SEL(mark(x0), a__sel(a__from(mark(z0)), mark(x3))), MARK(sel(from(z0), x3)))
   A__SEL(s(x0), cons(x1, sel(sel(z0, z1), x3))) -> c4(A__SEL(mark(x0), a__sel(a__sel(mark(z0), mark(z1)), mark(x3))), MARK(sel(sel(z0, z1), x3)))
   A__SEL(s(x0), cons(x1, sel(cons(z0, z1), x3))) -> c4(A__SEL(mark(x0), a__sel(cons(mark(z0), z1), mark(x3))), MARK(sel(cons(z0, z1), x3)))
   A__SEL(s(x0), cons(x1, sel(s(z0), x3))) -> c4(A__SEL(mark(x0), a__sel(s(mark(z0)), mark(x3))), MARK(sel(s(z0), x3)))
   A__SEL(s(x0), cons(x1, sel(0, x3))) -> c4(A__SEL(mark(x0), a__sel(0, mark(x3))), MARK(sel(0, x3)))
   A__SEL(s(from(z0)), cons(x1, sel(x2, x3))) -> c4(A__SEL(a__from(mark(z0)), a__sel(mark(x2), mark(x3))), MARK(sel(x2, x3)))
   A__SEL(s(sel(z0, z1)), cons(x1, sel(x2, x3))) -> c4(A__SEL(a__sel(mark(z0), mark(z1)), a__sel(mark(x2), mark(x3))), MARK(sel(x2, x3)))
   A__SEL(s(s(z0)), cons(x1, sel(x2, x3))) -> c4(A__SEL(s(mark(z0)), a__sel(mark(x2), mark(x3))), MARK(sel(x2, x3)))
   A__SEL(s(0), cons(x1, sel(x2, x3))) -> c4(A__SEL(0, a__sel(mark(x2), mark(x3))), MARK(sel(x2, x3)))
   A__SEL(s(x0), cons(x1, sel(x2, x3))) -> c4(MARK(sel(x2, x3)))
   A__SEL(s(cons(z0, z1)), cons(x1, sel(x2, x3))) -> c4(MARK(sel(x2, x3)))
S tuples:
   A__FROM(z0) -> c(MARK(z0))
   A__SEL(0, cons(z0, z1)) -> c2(MARK(z0))
   MARK(from(z0)) -> c6(A__FROM(mark(z0)), MARK(z0))
   MARK(cons(z0, z1)) -> c9(MARK(z0))
   MARK(s(z0)) -> c10(MARK(z0))
   A__SEL(s(x0), cons(x1, s(z0))) -> c3(MARK(x0))
   A__SEL(s(x0), cons(x1, 0)) -> c3(MARK(x0))
   A__SEL(s(cons(z0, z1)), cons(x1, x2)) -> c3(MARK(cons(z0, z1)))
   A__SEL(s(x0), cons(x1, cons(z0, z1))) -> c4(A__SEL(mark(x0), cons(mark(z0), z1)), MARK(cons(z0, z1)))
   A__SEL(s(from(z0)), cons(x1, x2)) -> c4(A__SEL(a__from(mark(z0)), mark(x2)), MARK(x2))
   A__SEL(s(sel(z0, z1)), cons(x1, x2)) -> c4(A__SEL(a__sel(mark(z0), mark(z1)), mark(x2)), MARK(x2))
   A__SEL(s(s(z0)), cons(x1, x2)) -> c4(A__SEL(s(mark(z0)), mark(x2)), MARK(x2))
   A__SEL(s(0), cons(x1, x2)) -> c4(A__SEL(0, mark(x2)), MARK(x2))
   A__SEL(s(x0), cons(x1, s(z0))) -> c4(MARK(s(z0)))
   A__SEL(s(cons(z0, z1)), cons(x1, x2)) -> c4(MARK(x2))
   MARK(sel(x0, from(z0))) -> c7(A__SEL(mark(x0), a__from(mark(z0))), MARK(x0))
   MARK(sel(x0, sel(z0, z1))) -> c7(A__SEL(mark(x0), a__sel(mark(z0), mark(z1))), MARK(x0))
   MARK(sel(x0, cons(z0, z1))) -> c7(A__SEL(mark(x0), cons(mark(z0), z1)), MARK(x0))
   MARK(sel(from(z0), x1)) -> c7(A__SEL(a__from(mark(z0)), mark(x1)), MARK(from(z0)))
   MARK(sel(sel(z0, z1), x1)) -> c7(A__SEL(a__sel(mark(z0), mark(z1)), mark(x1)), MARK(sel(z0, z1)))
   MARK(sel(s(z0), x1)) -> c7(A__SEL(s(mark(z0)), mark(x1)), MARK(s(z0)))
   MARK(sel(x0, s(z0))) -> c7(MARK(x0))
   MARK(sel(x0, 0)) -> c7(MARK(x0))
   MARK(sel(cons(z0, z1), x1)) -> c7(MARK(cons(z0, z1)))
   MARK(sel(0, x1)) -> c7(A__SEL(0, mark(x1)))
   MARK(sel(x0, from(z0))) -> c8(A__SEL(mark(x0), a__from(mark(z0))), MARK(from(z0)))
   MARK(sel(x0, sel(z0, z1))) -> c8(A__SEL(mark(x0), a__sel(mark(z0), mark(z1))), MARK(sel(z0, z1)))
   MARK(sel(x0, cons(z0, z1))) -> c8(A__SEL(mark(x0), cons(mark(z0), z1)), MARK(cons(z0, z1)))
   MARK(sel(from(z0), x1)) -> c8(A__SEL(a__from(mark(z0)), mark(x1)), MARK(x1))
   MARK(sel(sel(z0, z1), x1)) -> c8(A__SEL(a__sel(mark(z0), mark(z1)), mark(x1)), MARK(x1))
   MARK(sel(s(z0), x1)) -> c8(A__SEL(s(mark(z0)), mark(x1)), MARK(x1))
   MARK(sel(0, x1)) -> c8(A__SEL(0, mark(x1)), MARK(x1))
   MARK(sel(x0, s(z0))) -> c8(MARK(s(z0)))
   MARK(sel(cons(z0, z1), x1)) -> c8(MARK(x1))
   A__SEL(s(x0), cons(x1, from(x2))) -> c3(A__SEL(mark(x0), cons(mark(mark(x2)), from(s(mark(x2))))), MARK(x0))
   A__SEL(s(x0), cons(x1, from(from(z0)))) -> c3(A__SEL(mark(x0), a__from(a__from(mark(z0)))), MARK(x0))
   A__SEL(s(x0), cons(x1, from(sel(z0, z1)))) -> c3(A__SEL(mark(x0), a__from(a__sel(mark(z0), mark(z1)))), MARK(x0))
   A__SEL(s(x0), cons(x1, from(cons(z0, z1)))) -> c3(A__SEL(mark(x0), a__from(cons(mark(z0), z1))), MARK(x0))
   A__SEL(s(x0), cons(x1, from(s(z0)))) -> c3(A__SEL(mark(x0), a__from(s(mark(z0)))), MARK(x0))
   A__SEL(s(x0), cons(x1, from(0))) -> c3(A__SEL(mark(x0), a__from(0)), MARK(x0))
   A__SEL(s(from(z0)), cons(x1, from(x2))) -> c3(A__SEL(a__from(mark(z0)), a__from(mark(x2))), MARK(from(z0)))
   A__SEL(s(sel(z0, z1)), cons(x1, from(x2))) -> c3(A__SEL(a__sel(mark(z0), mark(z1)), a__from(mark(x2))), MARK(sel(z0, z1)))
   A__SEL(s(s(z0)), cons(x1, from(x2))) -> c3(A__SEL(s(mark(z0)), a__from(mark(x2))), MARK(s(z0)))
   A__SEL(s(x0), cons(x1, from(x2))) -> c3(MARK(x0))
   A__SEL(s(cons(z0, z1)), cons(x1, from(x2))) -> c3(MARK(cons(z0, z1)))
   A__SEL(s(0), cons(x1, from(x2))) -> c3(A__SEL(0, a__from(mark(x2))))
   A__SEL(s(x0), cons(x1, sel(x2, from(z0)))) -> c3(A__SEL(mark(x0), a__sel(mark(x2), a__from(mark(z0)))), MARK(x0))
   A__SEL(s(x0), cons(x1, sel(x2, sel(z0, z1)))) -> c3(A__SEL(mark(x0), a__sel(mark(x2), a__sel(mark(z0), mark(z1)))), MARK(x0))
   A__SEL(s(x0), cons(x1, sel(x2, cons(z0, z1)))) -> c3(A__SEL(mark(x0), a__sel(mark(x2), cons(mark(z0), z1))), MARK(x0))
   A__SEL(s(x0), cons(x1, sel(x2, s(z0)))) -> c3(A__SEL(mark(x0), a__sel(mark(x2), s(mark(z0)))), MARK(x0))
   A__SEL(s(x0), cons(x1, sel(x2, 0))) -> c3(A__SEL(mark(x0), a__sel(mark(x2), 0)), MARK(x0))
   A__SEL(s(x0), cons(x1, sel(from(z0), x3))) -> c3(A__SEL(mark(x0), a__sel(a__from(mark(z0)), mark(x3))), MARK(x0))
   A__SEL(s(x0), cons(x1, sel(sel(z0, z1), x3))) -> c3(A__SEL(mark(x0), a__sel(a__sel(mark(z0), mark(z1)), mark(x3))), MARK(x0))
   A__SEL(s(x0), cons(x1, sel(cons(z0, z1), x3))) -> c3(A__SEL(mark(x0), a__sel(cons(mark(z0), z1), mark(x3))), MARK(x0))
   A__SEL(s(x0), cons(x1, sel(s(z0), x3))) -> c3(A__SEL(mark(x0), a__sel(s(mark(z0)), mark(x3))), MARK(x0))
   A__SEL(s(x0), cons(x1, sel(0, x3))) -> c3(A__SEL(mark(x0), a__sel(0, mark(x3))), MARK(x0))
   A__SEL(s(from(z0)), cons(x1, sel(x2, x3))) -> c3(A__SEL(a__from(mark(z0)), a__sel(mark(x2), mark(x3))), MARK(from(z0)))
   A__SEL(s(sel(z0, z1)), cons(x1, sel(x2, x3))) -> c3(A__SEL(a__sel(mark(z0), mark(z1)), a__sel(mark(x2), mark(x3))), MARK(sel(z0, z1)))
   A__SEL(s(s(z0)), cons(x1, sel(x2, x3))) -> c3(A__SEL(s(mark(z0)), a__sel(mark(x2), mark(x3))), MARK(s(z0)))
   A__SEL(s(x0), cons(x1, sel(x2, x3))) -> c3(MARK(x0))
   A__SEL(s(cons(z0, z1)), cons(x1, sel(x2, x3))) -> c3(MARK(cons(z0, z1)))
   A__SEL(s(0), cons(x1, sel(x2, x3))) -> c3(A__SEL(0, a__sel(mark(x2), mark(x3))))
   A__SEL(s(x0), cons(x1, cons(from(z0), x3))) -> c3(A__SEL(mark(x0), cons(a__from(mark(z0)), x3)), MARK(x0))
   A__SEL(s(x0), cons(x1, cons(sel(z0, z1), x3))) -> c3(A__SEL(mark(x0), cons(a__sel(mark(z0), mark(z1)), x3)), MARK(x0))
   A__SEL(s(x0), cons(x1, cons(cons(z0, z1), x3))) -> c3(A__SEL(mark(x0), cons(cons(mark(z0), z1), x3)), MARK(x0))
   A__SEL(s(x0), cons(x1, cons(s(z0), x3))) -> c3(A__SEL(mark(x0), cons(s(mark(z0)), x3)), MARK(x0))
   A__SEL(s(x0), cons(x1, cons(0, x3))) -> c3(A__SEL(mark(x0), cons(0, x3)), MARK(x0))
   A__SEL(s(from(z0)), cons(x1, cons(x2, x3))) -> c3(A__SEL(a__from(mark(z0)), cons(mark(x2), x3)), MARK(from(z0)))
   A__SEL(s(sel(z0, z1)), cons(x1, cons(x2, x3))) -> c3(A__SEL(a__sel(mark(z0), mark(z1)), cons(mark(x2), x3)), MARK(sel(z0, z1)))
   A__SEL(s(s(z0)), cons(x1, cons(x2, x3))) -> c3(A__SEL(s(mark(z0)), cons(mark(x2), x3)), MARK(s(z0)))
   A__SEL(s(cons(z0, z1)), cons(x1, cons(x2, x3))) -> c3(MARK(cons(z0, z1)))
   A__SEL(s(0), cons(x1, cons(x2, x3))) -> c3(A__SEL(0, cons(mark(x2), x3)))
   A__SEL(s(from(from(z0))), cons(x1, x2)) -> c3(A__SEL(a__from(a__from(mark(z0))), mark(x2)), MARK(from(from(z0))))
   A__SEL(s(from(sel(z0, z1))), cons(x1, x2)) -> c3(A__SEL(a__from(a__sel(mark(z0), mark(z1))), mark(x2)), MARK(from(sel(z0, z1))))
   A__SEL(s(from(cons(z0, z1))), cons(x1, x2)) -> c3(A__SEL(a__from(cons(mark(z0), z1)), mark(x2)), MARK(from(cons(z0, z1))))
   A__SEL(s(from(s(z0))), cons(x1, x2)) -> c3(A__SEL(a__from(s(mark(z0))), mark(x2)), MARK(from(s(z0))))
   A__SEL(s(from(0)), cons(x1, x2)) -> c3(A__SEL(a__from(0), mark(x2)), MARK(from(0)))
   A__SEL(s(from(x0)), cons(x1, x2)) -> c3(MARK(from(x0)))
   A__SEL(s(from(x0)), cons(x1, s(z0))) -> c3(MARK(from(x0)))
   A__SEL(s(from(x0)), cons(x1, 0)) -> c3(MARK(from(x0)))
   A__SEL(s(sel(x0, from(z0))), cons(x2, x3)) -> c3(A__SEL(a__sel(mark(x0), a__from(mark(z0))), mark(x3)), MARK(sel(x0, from(z0))))
   A__SEL(s(sel(x0, sel(z0, z1))), cons(x2, x3)) -> c3(A__SEL(a__sel(mark(x0), a__sel(mark(z0), mark(z1))), mark(x3)), MARK(sel(x0, sel(z0, z1))))
   A__SEL(s(sel(x0, cons(z0, z1))), cons(x2, x3)) -> c3(A__SEL(a__sel(mark(x0), cons(mark(z0), z1)), mark(x3)), MARK(sel(x0, cons(z0, z1))))
   A__SEL(s(sel(x0, s(z0))), cons(x2, x3)) -> c3(A__SEL(a__sel(mark(x0), s(mark(z0))), mark(x3)), MARK(sel(x0, s(z0))))
   A__SEL(s(sel(x0, 0)), cons(x2, x3)) -> c3(A__SEL(a__sel(mark(x0), 0), mark(x3)), MARK(sel(x0, 0)))
   A__SEL(s(sel(from(z0), x1)), cons(x2, x3)) -> c3(A__SEL(a__sel(a__from(mark(z0)), mark(x1)), mark(x3)), MARK(sel(from(z0), x1)))
   A__SEL(s(sel(sel(z0, z1), x1)), cons(x2, x3)) -> c3(A__SEL(a__sel(a__sel(mark(z0), mark(z1)), mark(x1)), mark(x3)), MARK(sel(sel(z0, z1), x1)))
   A__SEL(s(sel(cons(z0, z1), x1)), cons(x2, x3)) -> c3(A__SEL(a__sel(cons(mark(z0), z1), mark(x1)), mark(x3)), MARK(sel(cons(z0, z1), x1)))
   A__SEL(s(sel(s(z0), x1)), cons(x2, x3)) -> c3(A__SEL(a__sel(s(mark(z0)), mark(x1)), mark(x3)), MARK(sel(s(z0), x1)))
   A__SEL(s(sel(0, x1)), cons(x2, x3)) -> c3(A__SEL(a__sel(0, mark(x1)), mark(x3)), MARK(sel(0, x1)))
   A__SEL(s(sel(x0, x1)), cons(x2, s(z0))) -> c3(MARK(sel(x0, x1)))
   A__SEL(s(sel(x0, x1)), cons(x2, 0)) -> c3(MARK(sel(x0, x1)))
   A__SEL(s(sel(x0, x1)), cons(x2, x3)) -> c3(MARK(sel(x0, x1)))
   A__SEL(s(s(from(z0))), cons(x1, x2)) -> c3(A__SEL(s(a__from(mark(z0))), mark(x2)), MARK(s(from(z0))))
   A__SEL(s(s(sel(z0, z1))), cons(x1, x2)) -> c3(A__SEL(s(a__sel(mark(z0), mark(z1))), mark(x2)), MARK(s(sel(z0, z1))))
   A__SEL(s(s(cons(z0, z1))), cons(x1, x2)) -> c3(A__SEL(s(cons(mark(z0), z1)), mark(x2)), MARK(s(cons(z0, z1))))
   A__SEL(s(s(s(z0))), cons(x1, x2)) -> c3(A__SEL(s(s(mark(z0))), mark(x2)), MARK(s(s(z0))))
   A__SEL(s(s(0)), cons(x1, x2)) -> c3(A__SEL(s(0), mark(x2)), MARK(s(0)))
   A__SEL(s(s(x0)), cons(x1, x2)) -> c3(MARK(s(x0)))
   A__SEL(s(s(x0)), cons(x1, s(z0))) -> c3(MARK(s(x0)))
   A__SEL(s(s(x0)), cons(x1, 0)) -> c3(MARK(s(x0)))
   A__SEL(s(x0), cons(x1, from(x2))) -> c4(A__SEL(mark(x0), cons(mark(mark(x2)), from(s(mark(x2))))), MARK(from(x2)))
   A__SEL(s(x0), cons(x1, from(from(z0)))) -> c4(A__SEL(mark(x0), a__from(a__from(mark(z0)))), MARK(from(from(z0))))
   A__SEL(s(x0), cons(x1, from(sel(z0, z1)))) -> c4(A__SEL(mark(x0), a__from(a__sel(mark(z0), mark(z1)))), MARK(from(sel(z0, z1))))
   A__SEL(s(x0), cons(x1, from(cons(z0, z1)))) -> c4(A__SEL(mark(x0), a__from(cons(mark(z0), z1))), MARK(from(cons(z0, z1))))
   A__SEL(s(x0), cons(x1, from(s(z0)))) -> c4(A__SEL(mark(x0), a__from(s(mark(z0)))), MARK(from(s(z0))))
   A__SEL(s(x0), cons(x1, from(0))) -> c4(A__SEL(mark(x0), a__from(0)), MARK(from(0)))
   A__SEL(s(from(z0)), cons(x1, from(x2))) -> c4(A__SEL(a__from(mark(z0)), a__from(mark(x2))), MARK(from(x2)))
   A__SEL(s(sel(z0, z1)), cons(x1, from(x2))) -> c4(A__SEL(a__sel(mark(z0), mark(z1)), a__from(mark(x2))), MARK(from(x2)))
   A__SEL(s(s(z0)), cons(x1, from(x2))) -> c4(A__SEL(s(mark(z0)), a__from(mark(x2))), MARK(from(x2)))
   A__SEL(s(0), cons(x1, from(x2))) -> c4(A__SEL(0, a__from(mark(x2))), MARK(from(x2)))
   A__SEL(s(x0), cons(x1, from(x2))) -> c4(MARK(from(x2)))
   A__SEL(s(cons(z0, z1)), cons(x1, from(x2))) -> c4(MARK(from(x2)))
   A__SEL(s(x0), cons(x1, sel(x2, from(z0)))) -> c4(A__SEL(mark(x0), a__sel(mark(x2), a__from(mark(z0)))), MARK(sel(x2, from(z0))))
   A__SEL(s(x0), cons(x1, sel(x2, sel(z0, z1)))) -> c4(A__SEL(mark(x0), a__sel(mark(x2), a__sel(mark(z0), mark(z1)))), MARK(sel(x2, sel(z0, z1))))
   A__SEL(s(x0), cons(x1, sel(x2, cons(z0, z1)))) -> c4(A__SEL(mark(x0), a__sel(mark(x2), cons(mark(z0), z1))), MARK(sel(x2, cons(z0, z1))))
   A__SEL(s(x0), cons(x1, sel(x2, s(z0)))) -> c4(A__SEL(mark(x0), a__sel(mark(x2), s(mark(z0)))), MARK(sel(x2, s(z0))))
   A__SEL(s(x0), cons(x1, sel(x2, 0))) -> c4(A__SEL(mark(x0), a__sel(mark(x2), 0)), MARK(sel(x2, 0)))
   A__SEL(s(x0), cons(x1, sel(from(z0), x3))) -> c4(A__SEL(mark(x0), a__sel(a__from(mark(z0)), mark(x3))), MARK(sel(from(z0), x3)))
   A__SEL(s(x0), cons(x1, sel(sel(z0, z1), x3))) -> c4(A__SEL(mark(x0), a__sel(a__sel(mark(z0), mark(z1)), mark(x3))), MARK(sel(sel(z0, z1), x3)))
   A__SEL(s(x0), cons(x1, sel(cons(z0, z1), x3))) -> c4(A__SEL(mark(x0), a__sel(cons(mark(z0), z1), mark(x3))), MARK(sel(cons(z0, z1), x3)))
   A__SEL(s(x0), cons(x1, sel(s(z0), x3))) -> c4(A__SEL(mark(x0), a__sel(s(mark(z0)), mark(x3))), MARK(sel(s(z0), x3)))
   A__SEL(s(x0), cons(x1, sel(0, x3))) -> c4(A__SEL(mark(x0), a__sel(0, mark(x3))), MARK(sel(0, x3)))
   A__SEL(s(from(z0)), cons(x1, sel(x2, x3))) -> c4(A__SEL(a__from(mark(z0)), a__sel(mark(x2), mark(x3))), MARK(sel(x2, x3)))
   A__SEL(s(sel(z0, z1)), cons(x1, sel(x2, x3))) -> c4(A__SEL(a__sel(mark(z0), mark(z1)), a__sel(mark(x2), mark(x3))), MARK(sel(x2, x3)))
   A__SEL(s(s(z0)), cons(x1, sel(x2, x3))) -> c4(A__SEL(s(mark(z0)), a__sel(mark(x2), mark(x3))), MARK(sel(x2, x3)))
   A__SEL(s(0), cons(x1, sel(x2, x3))) -> c4(A__SEL(0, a__sel(mark(x2), mark(x3))), MARK(sel(x2, x3)))
   A__SEL(s(x0), cons(x1, sel(x2, x3))) -> c4(MARK(sel(x2, x3)))
   A__SEL(s(cons(z0, z1)), cons(x1, sel(x2, x3))) -> c4(MARK(sel(x2, x3)))
K tuples:none
Defined Rule Symbols:   a__from_1, a__sel_2, mark_1

Defined Pair Symbols:   A__FROM_1, A__SEL_2, MARK_1

Compound Symbols:   c_1, c2_1, c6_2, c9_1, c10_1, c3_1, c4_2, c4_1, c7_2, c7_1, c8_2, c8_1, c3_2


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

(113) CdtNarrowingProof (BOTH BOUNDS(ID, ID))
Use narrowing to replace A__SEL(s(x0), cons(x1, cons(z0, z1))) -> c4(A__SEL(mark(x0), cons(mark(z0), z1)), MARK(cons(z0, z1))) by 
   A__SEL(s(x0), cons(x1, cons(from(z0), x3))) -> c4(A__SEL(mark(x0), cons(a__from(mark(z0)), x3)), MARK(cons(from(z0), x3)))
   A__SEL(s(x0), cons(x1, cons(sel(z0, z1), x3))) -> c4(A__SEL(mark(x0), cons(a__sel(mark(z0), mark(z1)), x3)), MARK(cons(sel(z0, z1), x3)))
   A__SEL(s(x0), cons(x1, cons(cons(z0, z1), x3))) -> c4(A__SEL(mark(x0), cons(cons(mark(z0), z1), x3)), MARK(cons(cons(z0, z1), x3)))
   A__SEL(s(x0), cons(x1, cons(s(z0), x3))) -> c4(A__SEL(mark(x0), cons(s(mark(z0)), x3)), MARK(cons(s(z0), x3)))
   A__SEL(s(x0), cons(x1, cons(0, x3))) -> c4(A__SEL(mark(x0), cons(0, x3)), MARK(cons(0, x3)))
   A__SEL(s(from(z0)), cons(x1, cons(x2, x3))) -> c4(A__SEL(a__from(mark(z0)), cons(mark(x2), x3)), MARK(cons(x2, x3)))
   A__SEL(s(sel(z0, z1)), cons(x1, cons(x2, x3))) -> c4(A__SEL(a__sel(mark(z0), mark(z1)), cons(mark(x2), x3)), MARK(cons(x2, x3)))
   A__SEL(s(cons(z0, z1)), cons(x1, cons(x2, x3))) -> c4(A__SEL(cons(mark(z0), z1), cons(mark(x2), x3)), MARK(cons(x2, x3)))
   A__SEL(s(s(z0)), cons(x1, cons(x2, x3))) -> c4(A__SEL(s(mark(z0)), cons(mark(x2), x3)), MARK(cons(x2, x3)))
   A__SEL(s(0), cons(x1, cons(x2, x3))) -> c4(A__SEL(0, cons(mark(x2), x3)), MARK(cons(x2, x3)))
   A__SEL(s(x0), cons(x1, cons(x2, x3))) -> c4(MARK(cons(x2, x3)))

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

(114)
Obligation:
Complexity Dependency Tuples Problem

Rules:
   a__from(z0) -> cons(mark(z0), from(s(z0)))
   a__from(z0) -> from(z0)
   a__sel(0, cons(z0, z1)) -> mark(z0)
   a__sel(s(z0), cons(z1, z2)) -> a__sel(mark(z0), mark(z2))
   a__sel(z0, z1) -> sel(z0, z1)
   mark(from(z0)) -> a__from(mark(z0))
   mark(sel(z0, z1)) -> a__sel(mark(z0), mark(z1))
   mark(cons(z0, z1)) -> cons(mark(z0), z1)
   mark(s(z0)) -> s(mark(z0))
   mark(0) -> 0
Tuples:
   A__FROM(z0) -> c(MARK(z0))
   A__SEL(0, cons(z0, z1)) -> c2(MARK(z0))
   MARK(from(z0)) -> c6(A__FROM(mark(z0)), MARK(z0))
   MARK(cons(z0, z1)) -> c9(MARK(z0))
   MARK(s(z0)) -> c10(MARK(z0))
   A__SEL(s(x0), cons(x1, s(z0))) -> c3(MARK(x0))
   A__SEL(s(x0), cons(x1, 0)) -> c3(MARK(x0))
   A__SEL(s(cons(z0, z1)), cons(x1, x2)) -> c3(MARK(cons(z0, z1)))
   A__SEL(s(from(z0)), cons(x1, x2)) -> c4(A__SEL(a__from(mark(z0)), mark(x2)), MARK(x2))
   A__SEL(s(sel(z0, z1)), cons(x1, x2)) -> c4(A__SEL(a__sel(mark(z0), mark(z1)), mark(x2)), MARK(x2))
   A__SEL(s(s(z0)), cons(x1, x2)) -> c4(A__SEL(s(mark(z0)), mark(x2)), MARK(x2))
   A__SEL(s(0), cons(x1, x2)) -> c4(A__SEL(0, mark(x2)), MARK(x2))
   A__SEL(s(x0), cons(x1, s(z0))) -> c4(MARK(s(z0)))
   A__SEL(s(cons(z0, z1)), cons(x1, x2)) -> c4(MARK(x2))
   MARK(sel(x0, from(z0))) -> c7(A__SEL(mark(x0), a__from(mark(z0))), MARK(x0))
   MARK(sel(x0, sel(z0, z1))) -> c7(A__SEL(mark(x0), a__sel(mark(z0), mark(z1))), MARK(x0))
   MARK(sel(x0, cons(z0, z1))) -> c7(A__SEL(mark(x0), cons(mark(z0), z1)), MARK(x0))
   MARK(sel(from(z0), x1)) -> c7(A__SEL(a__from(mark(z0)), mark(x1)), MARK(from(z0)))
   MARK(sel(sel(z0, z1), x1)) -> c7(A__SEL(a__sel(mark(z0), mark(z1)), mark(x1)), MARK(sel(z0, z1)))
   MARK(sel(s(z0), x1)) -> c7(A__SEL(s(mark(z0)), mark(x1)), MARK(s(z0)))
   MARK(sel(x0, s(z0))) -> c7(MARK(x0))
   MARK(sel(x0, 0)) -> c7(MARK(x0))
   MARK(sel(cons(z0, z1), x1)) -> c7(MARK(cons(z0, z1)))
   MARK(sel(0, x1)) -> c7(A__SEL(0, mark(x1)))
   MARK(sel(x0, from(z0))) -> c8(A__SEL(mark(x0), a__from(mark(z0))), MARK(from(z0)))
   MARK(sel(x0, sel(z0, z1))) -> c8(A__SEL(mark(x0), a__sel(mark(z0), mark(z1))), MARK(sel(z0, z1)))
   MARK(sel(x0, cons(z0, z1))) -> c8(A__SEL(mark(x0), cons(mark(z0), z1)), MARK(cons(z0, z1)))
   MARK(sel(from(z0), x1)) -> c8(A__SEL(a__from(mark(z0)), mark(x1)), MARK(x1))
   MARK(sel(sel(z0, z1), x1)) -> c8(A__SEL(a__sel(mark(z0), mark(z1)), mark(x1)), MARK(x1))
   MARK(sel(s(z0), x1)) -> c8(A__SEL(s(mark(z0)), mark(x1)), MARK(x1))
   MARK(sel(0, x1)) -> c8(A__SEL(0, mark(x1)), MARK(x1))
   MARK(sel(x0, s(z0))) -> c8(MARK(s(z0)))
   MARK(sel(cons(z0, z1), x1)) -> c8(MARK(x1))
   A__SEL(s(x0), cons(x1, from(x2))) -> c3(A__SEL(mark(x0), cons(mark(mark(x2)), from(s(mark(x2))))), MARK(x0))
   A__SEL(s(x0), cons(x1, from(from(z0)))) -> c3(A__SEL(mark(x0), a__from(a__from(mark(z0)))), MARK(x0))
   A__SEL(s(x0), cons(x1, from(sel(z0, z1)))) -> c3(A__SEL(mark(x0), a__from(a__sel(mark(z0), mark(z1)))), MARK(x0))
   A__SEL(s(x0), cons(x1, from(cons(z0, z1)))) -> c3(A__SEL(mark(x0), a__from(cons(mark(z0), z1))), MARK(x0))
   A__SEL(s(x0), cons(x1, from(s(z0)))) -> c3(A__SEL(mark(x0), a__from(s(mark(z0)))), MARK(x0))
   A__SEL(s(x0), cons(x1, from(0))) -> c3(A__SEL(mark(x0), a__from(0)), MARK(x0))
   A__SEL(s(from(z0)), cons(x1, from(x2))) -> c3(A__SEL(a__from(mark(z0)), a__from(mark(x2))), MARK(from(z0)))
   A__SEL(s(sel(z0, z1)), cons(x1, from(x2))) -> c3(A__SEL(a__sel(mark(z0), mark(z1)), a__from(mark(x2))), MARK(sel(z0, z1)))
   A__SEL(s(s(z0)), cons(x1, from(x2))) -> c3(A__SEL(s(mark(z0)), a__from(mark(x2))), MARK(s(z0)))
   A__SEL(s(x0), cons(x1, from(x2))) -> c3(MARK(x0))
   A__SEL(s(cons(z0, z1)), cons(x1, from(x2))) -> c3(MARK(cons(z0, z1)))
   A__SEL(s(0), cons(x1, from(x2))) -> c3(A__SEL(0, a__from(mark(x2))))
   A__SEL(s(x0), cons(x1, sel(x2, from(z0)))) -> c3(A__SEL(mark(x0), a__sel(mark(x2), a__from(mark(z0)))), MARK(x0))
   A__SEL(s(x0), cons(x1, sel(x2, sel(z0, z1)))) -> c3(A__SEL(mark(x0), a__sel(mark(x2), a__sel(mark(z0), mark(z1)))), MARK(x0))
   A__SEL(s(x0), cons(x1, sel(x2, cons(z0, z1)))) -> c3(A__SEL(mark(x0), a__sel(mark(x2), cons(mark(z0), z1))), MARK(x0))
   A__SEL(s(x0), cons(x1, sel(x2, s(z0)))) -> c3(A__SEL(mark(x0), a__sel(mark(x2), s(mark(z0)))), MARK(x0))
   A__SEL(s(x0), cons(x1, sel(x2, 0))) -> c3(A__SEL(mark(x0), a__sel(mark(x2), 0)), MARK(x0))
   A__SEL(s(x0), cons(x1, sel(from(z0), x3))) -> c3(A__SEL(mark(x0), a__sel(a__from(mark(z0)), mark(x3))), MARK(x0))
   A__SEL(s(x0), cons(x1, sel(sel(z0, z1), x3))) -> c3(A__SEL(mark(x0), a__sel(a__sel(mark(z0), mark(z1)), mark(x3))), MARK(x0))
   A__SEL(s(x0), cons(x1, sel(cons(z0, z1), x3))) -> c3(A__SEL(mark(x0), a__sel(cons(mark(z0), z1), mark(x3))), MARK(x0))
   A__SEL(s(x0), cons(x1, sel(s(z0), x3))) -> c3(A__SEL(mark(x0), a__sel(s(mark(z0)), mark(x3))), MARK(x0))
   A__SEL(s(x0), cons(x1, sel(0, x3))) -> c3(A__SEL(mark(x0), a__sel(0, mark(x3))), MARK(x0))
   A__SEL(s(from(z0)), cons(x1, sel(x2, x3))) -> c3(A__SEL(a__from(mark(z0)), a__sel(mark(x2), mark(x3))), MARK(from(z0)))
   A__SEL(s(sel(z0, z1)), cons(x1, sel(x2, x3))) -> c3(A__SEL(a__sel(mark(z0), mark(z1)), a__sel(mark(x2), mark(x3))), MARK(sel(z0, z1)))
   A__SEL(s(s(z0)), cons(x1, sel(x2, x3))) -> c3(A__SEL(s(mark(z0)), a__sel(mark(x2), mark(x3))), MARK(s(z0)))
   A__SEL(s(x0), cons(x1, sel(x2, x3))) -> c3(MARK(x0))
   A__SEL(s(cons(z0, z1)), cons(x1, sel(x2, x3))) -> c3(MARK(cons(z0, z1)))
   A__SEL(s(0), cons(x1, sel(x2, x3))) -> c3(A__SEL(0, a__sel(mark(x2), mark(x3))))
   A__SEL(s(x0), cons(x1, cons(from(z0), x3))) -> c3(A__SEL(mark(x0), cons(a__from(mark(z0)), x3)), MARK(x0))
   A__SEL(s(x0), cons(x1, cons(sel(z0, z1), x3))) -> c3(A__SEL(mark(x0), cons(a__sel(mark(z0), mark(z1)), x3)), MARK(x0))
   A__SEL(s(x0), cons(x1, cons(cons(z0, z1), x3))) -> c3(A__SEL(mark(x0), cons(cons(mark(z0), z1), x3)), MARK(x0))
   A__SEL(s(x0), cons(x1, cons(s(z0), x3))) -> c3(A__SEL(mark(x0), cons(s(mark(z0)), x3)), MARK(x0))
   A__SEL(s(x0), cons(x1, cons(0, x3))) -> c3(A__SEL(mark(x0), cons(0, x3)), MARK(x0))
   A__SEL(s(from(z0)), cons(x1, cons(x2, x3))) -> c3(A__SEL(a__from(mark(z0)), cons(mark(x2), x3)), MARK(from(z0)))
   A__SEL(s(sel(z0, z1)), cons(x1, cons(x2, x3))) -> c3(A__SEL(a__sel(mark(z0), mark(z1)), cons(mark(x2), x3)), MARK(sel(z0, z1)))
   A__SEL(s(s(z0)), cons(x1, cons(x2, x3))) -> c3(A__SEL(s(mark(z0)), cons(mark(x2), x3)), MARK(s(z0)))
   A__SEL(s(cons(z0, z1)), cons(x1, cons(x2, x3))) -> c3(MARK(cons(z0, z1)))
   A__SEL(s(0), cons(x1, cons(x2, x3))) -> c3(A__SEL(0, cons(mark(x2), x3)))
   A__SEL(s(from(from(z0))), cons(x1, x2)) -> c3(A__SEL(a__from(a__from(mark(z0))), mark(x2)), MARK(from(from(z0))))
   A__SEL(s(from(sel(z0, z1))), cons(x1, x2)) -> c3(A__SEL(a__from(a__sel(mark(z0), mark(z1))), mark(x2)), MARK(from(sel(z0, z1))))
   A__SEL(s(from(cons(z0, z1))), cons(x1, x2)) -> c3(A__SEL(a__from(cons(mark(z0), z1)), mark(x2)), MARK(from(cons(z0, z1))))
   A__SEL(s(from(s(z0))), cons(x1, x2)) -> c3(A__SEL(a__from(s(mark(z0))), mark(x2)), MARK(from(s(z0))))
   A__SEL(s(from(0)), cons(x1, x2)) -> c3(A__SEL(a__from(0), mark(x2)), MARK(from(0)))
   A__SEL(s(from(x0)), cons(x1, x2)) -> c3(MARK(from(x0)))
   A__SEL(s(from(x0)), cons(x1, s(z0))) -> c3(MARK(from(x0)))
   A__SEL(s(from(x0)), cons(x1, 0)) -> c3(MARK(from(x0)))
   A__SEL(s(sel(x0, from(z0))), cons(x2, x3)) -> c3(A__SEL(a__sel(mark(x0), a__from(mark(z0))), mark(x3)), MARK(sel(x0, from(z0))))
   A__SEL(s(sel(x0, sel(z0, z1))), cons(x2, x3)) -> c3(A__SEL(a__sel(mark(x0), a__sel(mark(z0), mark(z1))), mark(x3)), MARK(sel(x0, sel(z0, z1))))
   A__SEL(s(sel(x0, cons(z0, z1))), cons(x2, x3)) -> c3(A__SEL(a__sel(mark(x0), cons(mark(z0), z1)), mark(x3)), MARK(sel(x0, cons(z0, z1))))
   A__SEL(s(sel(x0, s(z0))), cons(x2, x3)) -> c3(A__SEL(a__sel(mark(x0), s(mark(z0))), mark(x3)), MARK(sel(x0, s(z0))))
   A__SEL(s(sel(x0, 0)), cons(x2, x3)) -> c3(A__SEL(a__sel(mark(x0), 0), mark(x3)), MARK(sel(x0, 0)))
   A__SEL(s(sel(from(z0), x1)), cons(x2, x3)) -> c3(A__SEL(a__sel(a__from(mark(z0)), mark(x1)), mark(x3)), MARK(sel(from(z0), x1)))
   A__SEL(s(sel(sel(z0, z1), x1)), cons(x2, x3)) -> c3(A__SEL(a__sel(a__sel(mark(z0), mark(z1)), mark(x1)), mark(x3)), MARK(sel(sel(z0, z1), x1)))
   A__SEL(s(sel(cons(z0, z1), x1)), cons(x2, x3)) -> c3(A__SEL(a__sel(cons(mark(z0), z1), mark(x1)), mark(x3)), MARK(sel(cons(z0, z1), x1)))
   A__SEL(s(sel(s(z0), x1)), cons(x2, x3)) -> c3(A__SEL(a__sel(s(mark(z0)), mark(x1)), mark(x3)), MARK(sel(s(z0), x1)))
   A__SEL(s(sel(0, x1)), cons(x2, x3)) -> c3(A__SEL(a__sel(0, mark(x1)), mark(x3)), MARK(sel(0, x1)))
   A__SEL(s(sel(x0, x1)), cons(x2, s(z0))) -> c3(MARK(sel(x0, x1)))
   A__SEL(s(sel(x0, x1)), cons(x2, 0)) -> c3(MARK(sel(x0, x1)))
   A__SEL(s(sel(x0, x1)), cons(x2, x3)) -> c3(MARK(sel(x0, x1)))
   A__SEL(s(s(from(z0))), cons(x1, x2)) -> c3(A__SEL(s(a__from(mark(z0))), mark(x2)), MARK(s(from(z0))))
   A__SEL(s(s(sel(z0, z1))), cons(x1, x2)) -> c3(A__SEL(s(a__sel(mark(z0), mark(z1))), mark(x2)), MARK(s(sel(z0, z1))))
   A__SEL(s(s(cons(z0, z1))), cons(x1, x2)) -> c3(A__SEL(s(cons(mark(z0), z1)), mark(x2)), MARK(s(cons(z0, z1))))
   A__SEL(s(s(s(z0))), cons(x1, x2)) -> c3(A__SEL(s(s(mark(z0))), mark(x2)), MARK(s(s(z0))))
   A__SEL(s(s(0)), cons(x1, x2)) -> c3(A__SEL(s(0), mark(x2)), MARK(s(0)))
   A__SEL(s(s(x0)), cons(x1, x2)) -> c3(MARK(s(x0)))
   A__SEL(s(s(x0)), cons(x1, s(z0))) -> c3(MARK(s(x0)))
   A__SEL(s(s(x0)), cons(x1, 0)) -> c3(MARK(s(x0)))
   A__SEL(s(x0), cons(x1, from(x2))) -> c4(A__SEL(mark(x0), cons(mark(mark(x2)), from(s(mark(x2))))), MARK(from(x2)))
   A__SEL(s(x0), cons(x1, from(from(z0)))) -> c4(A__SEL(mark(x0), a__from(a__from(mark(z0)))), MARK(from(from(z0))))
   A__SEL(s(x0), cons(x1, from(sel(z0, z1)))) -> c4(A__SEL(mark(x0), a__from(a__sel(mark(z0), mark(z1)))), MARK(from(sel(z0, z1))))
   A__SEL(s(x0), cons(x1, from(cons(z0, z1)))) -> c4(A__SEL(mark(x0), a__from(cons(mark(z0), z1))), MARK(from(cons(z0, z1))))
   A__SEL(s(x0), cons(x1, from(s(z0)))) -> c4(A__SEL(mark(x0), a__from(s(mark(z0)))), MARK(from(s(z0))))
   A__SEL(s(x0), cons(x1, from(0))) -> c4(A__SEL(mark(x0), a__from(0)), MARK(from(0)))
   A__SEL(s(from(z0)), cons(x1, from(x2))) -> c4(A__SEL(a__from(mark(z0)), a__from(mark(x2))), MARK(from(x2)))
   A__SEL(s(sel(z0, z1)), cons(x1, from(x2))) -> c4(A__SEL(a__sel(mark(z0), mark(z1)), a__from(mark(x2))), MARK(from(x2)))
   A__SEL(s(s(z0)), cons(x1, from(x2))) -> c4(A__SEL(s(mark(z0)), a__from(mark(x2))), MARK(from(x2)))
   A__SEL(s(0), cons(x1, from(x2))) -> c4(A__SEL(0, a__from(mark(x2))), MARK(from(x2)))
   A__SEL(s(x0), cons(x1, from(x2))) -> c4(MARK(from(x2)))
   A__SEL(s(cons(z0, z1)), cons(x1, from(x2))) -> c4(MARK(from(x2)))
   A__SEL(s(x0), cons(x1, sel(x2, from(z0)))) -> c4(A__SEL(mark(x0), a__sel(mark(x2), a__from(mark(z0)))), MARK(sel(x2, from(z0))))
   A__SEL(s(x0), cons(x1, sel(x2, sel(z0, z1)))) -> c4(A__SEL(mark(x0), a__sel(mark(x2), a__sel(mark(z0), mark(z1)))), MARK(sel(x2, sel(z0, z1))))
   A__SEL(s(x0), cons(x1, sel(x2, cons(z0, z1)))) -> c4(A__SEL(mark(x0), a__sel(mark(x2), cons(mark(z0), z1))), MARK(sel(x2, cons(z0, z1))))
   A__SEL(s(x0), cons(x1, sel(x2, s(z0)))) -> c4(A__SEL(mark(x0), a__sel(mark(x2), s(mark(z0)))), MARK(sel(x2, s(z0))))
   A__SEL(s(x0), cons(x1, sel(x2, 0))) -> c4(A__SEL(mark(x0), a__sel(mark(x2), 0)), MARK(sel(x2, 0)))
   A__SEL(s(x0), cons(x1, sel(from(z0), x3))) -> c4(A__SEL(mark(x0), a__sel(a__from(mark(z0)), mark(x3))), MARK(sel(from(z0), x3)))
   A__SEL(s(x0), cons(x1, sel(sel(z0, z1), x3))) -> c4(A__SEL(mark(x0), a__sel(a__sel(mark(z0), mark(z1)), mark(x3))), MARK(sel(sel(z0, z1), x3)))
   A__SEL(s(x0), cons(x1, sel(cons(z0, z1), x3))) -> c4(A__SEL(mark(x0), a__sel(cons(mark(z0), z1), mark(x3))), MARK(sel(cons(z0, z1), x3)))
   A__SEL(s(x0), cons(x1, sel(s(z0), x3))) -> c4(A__SEL(mark(x0), a__sel(s(mark(z0)), mark(x3))), MARK(sel(s(z0), x3)))
   A__SEL(s(x0), cons(x1, sel(0, x3))) -> c4(A__SEL(mark(x0), a__sel(0, mark(x3))), MARK(sel(0, x3)))
   A__SEL(s(from(z0)), cons(x1, sel(x2, x3))) -> c4(A__SEL(a__from(mark(z0)), a__sel(mark(x2), mark(x3))), MARK(sel(x2, x3)))
   A__SEL(s(sel(z0, z1)), cons(x1, sel(x2, x3))) -> c4(A__SEL(a__sel(mark(z0), mark(z1)), a__sel(mark(x2), mark(x3))), MARK(sel(x2, x3)))
   A__SEL(s(s(z0)), cons(x1, sel(x2, x3))) -> c4(A__SEL(s(mark(z0)), a__sel(mark(x2), mark(x3))), MARK(sel(x2, x3)))
   A__SEL(s(0), cons(x1, sel(x2, x3))) -> c4(A__SEL(0, a__sel(mark(x2), mark(x3))), MARK(sel(x2, x3)))
   A__SEL(s(x0), cons(x1, sel(x2, x3))) -> c4(MARK(sel(x2, x3)))
   A__SEL(s(cons(z0, z1)), cons(x1, sel(x2, x3))) -> c4(MARK(sel(x2, x3)))
   A__SEL(s(x0), cons(x1, cons(from(z0), x3))) -> c4(A__SEL(mark(x0), cons(a__from(mark(z0)), x3)), MARK(cons(from(z0), x3)))
   A__SEL(s(x0), cons(x1, cons(sel(z0, z1), x3))) -> c4(A__SEL(mark(x0), cons(a__sel(mark(z0), mark(z1)), x3)), MARK(cons(sel(z0, z1), x3)))
   A__SEL(s(x0), cons(x1, cons(cons(z0, z1), x3))) -> c4(A__SEL(mark(x0), cons(cons(mark(z0), z1), x3)), MARK(cons(cons(z0, z1), x3)))
   A__SEL(s(x0), cons(x1, cons(s(z0), x3))) -> c4(A__SEL(mark(x0), cons(s(mark(z0)), x3)), MARK(cons(s(z0), x3)))
   A__SEL(s(x0), cons(x1, cons(0, x3))) -> c4(A__SEL(mark(x0), cons(0, x3)), MARK(cons(0, x3)))
   A__SEL(s(from(z0)), cons(x1, cons(x2, x3))) -> c4(A__SEL(a__from(mark(z0)), cons(mark(x2), x3)), MARK(cons(x2, x3)))
   A__SEL(s(sel(z0, z1)), cons(x1, cons(x2, x3))) -> c4(A__SEL(a__sel(mark(z0), mark(z1)), cons(mark(x2), x3)), MARK(cons(x2, x3)))
   A__SEL(s(cons(z0, z1)), cons(x1, cons(x2, x3))) -> c4(A__SEL(cons(mark(z0), z1), cons(mark(x2), x3)), MARK(cons(x2, x3)))
   A__SEL(s(s(z0)), cons(x1, cons(x2, x3))) -> c4(A__SEL(s(mark(z0)), cons(mark(x2), x3)), MARK(cons(x2, x3)))
   A__SEL(s(0), cons(x1, cons(x2, x3))) -> c4(A__SEL(0, cons(mark(x2), x3)), MARK(cons(x2, x3)))
   A__SEL(s(x0), cons(x1, cons(x2, x3))) -> c4(MARK(cons(x2, x3)))
S tuples:
   A__FROM(z0) -> c(MARK(z0))
   A__SEL(0, cons(z0, z1)) -> c2(MARK(z0))
   MARK(from(z0)) -> c6(A__FROM(mark(z0)), MARK(z0))
   MARK(cons(z0, z1)) -> c9(MARK(z0))
   MARK(s(z0)) -> c10(MARK(z0))
   A__SEL(s(x0), cons(x1, s(z0))) -> c3(MARK(x0))
   A__SEL(s(x0), cons(x1, 0)) -> c3(MARK(x0))
   A__SEL(s(cons(z0, z1)), cons(x1, x2)) -> c3(MARK(cons(z0, z1)))
   A__SEL(s(from(z0)), cons(x1, x2)) -> c4(A__SEL(a__from(mark(z0)), mark(x2)), MARK(x2))
   A__SEL(s(sel(z0, z1)), cons(x1, x2)) -> c4(A__SEL(a__sel(mark(z0), mark(z1)), mark(x2)), MARK(x2))
   A__SEL(s(s(z0)), cons(x1, x2)) -> c4(A__SEL(s(mark(z0)), mark(x2)), MARK(x2))
   A__SEL(s(0), cons(x1, x2)) -> c4(A__SEL(0, mark(x2)), MARK(x2))
   A__SEL(s(x0), cons(x1, s(z0))) -> c4(MARK(s(z0)))
   A__SEL(s(cons(z0, z1)), cons(x1, x2)) -> c4(MARK(x2))
   MARK(sel(x0, from(z0))) -> c7(A__SEL(mark(x0), a__from(mark(z0))), MARK(x0))
   MARK(sel(x0, sel(z0, z1))) -> c7(A__SEL(mark(x0), a__sel(mark(z0), mark(z1))), MARK(x0))
   MARK(sel(x0, cons(z0, z1))) -> c7(A__SEL(mark(x0), cons(mark(z0), z1)), MARK(x0))
   MARK(sel(from(z0), x1)) -> c7(A__SEL(a__from(mark(z0)), mark(x1)), MARK(from(z0)))
   MARK(sel(sel(z0, z1), x1)) -> c7(A__SEL(a__sel(mark(z0), mark(z1)), mark(x1)), MARK(sel(z0, z1)))
   MARK(sel(s(z0), x1)) -> c7(A__SEL(s(mark(z0)), mark(x1)), MARK(s(z0)))
   MARK(sel(x0, s(z0))) -> c7(MARK(x0))
   MARK(sel(x0, 0)) -> c7(MARK(x0))
   MARK(sel(cons(z0, z1), x1)) -> c7(MARK(cons(z0, z1)))
   MARK(sel(0, x1)) -> c7(A__SEL(0, mark(x1)))
   MARK(sel(x0, from(z0))) -> c8(A__SEL(mark(x0), a__from(mark(z0))), MARK(from(z0)))
   MARK(sel(x0, sel(z0, z1))) -> c8(A__SEL(mark(x0), a__sel(mark(z0), mark(z1))), MARK(sel(z0, z1)))
   MARK(sel(x0, cons(z0, z1))) -> c8(A__SEL(mark(x0), cons(mark(z0), z1)), MARK(cons(z0, z1)))
   MARK(sel(from(z0), x1)) -> c8(A__SEL(a__from(mark(z0)), mark(x1)), MARK(x1))
   MARK(sel(sel(z0, z1), x1)) -> c8(A__SEL(a__sel(mark(z0), mark(z1)), mark(x1)), MARK(x1))
   MARK(sel(s(z0), x1)) -> c8(A__SEL(s(mark(z0)), mark(x1)), MARK(x1))
   MARK(sel(0, x1)) -> c8(A__SEL(0, mark(x1)), MARK(x1))
   MARK(sel(x0, s(z0))) -> c8(MARK(s(z0)))
   MARK(sel(cons(z0, z1), x1)) -> c8(MARK(x1))
   A__SEL(s(x0), cons(x1, from(x2))) -> c3(A__SEL(mark(x0), cons(mark(mark(x2)), from(s(mark(x2))))), MARK(x0))
   A__SEL(s(x0), cons(x1, from(from(z0)))) -> c3(A__SEL(mark(x0), a__from(a__from(mark(z0)))), MARK(x0))
   A__SEL(s(x0), cons(x1, from(sel(z0, z1)))) -> c3(A__SEL(mark(x0), a__from(a__sel(mark(z0), mark(z1)))), MARK(x0))
   A__SEL(s(x0), cons(x1, from(cons(z0, z1)))) -> c3(A__SEL(mark(x0), a__from(cons(mark(z0), z1))), MARK(x0))
   A__SEL(s(x0), cons(x1, from(s(z0)))) -> c3(A__SEL(mark(x0), a__from(s(mark(z0)))), MARK(x0))
   A__SEL(s(x0), cons(x1, from(0))) -> c3(A__SEL(mark(x0), a__from(0)), MARK(x0))
   A__SEL(s(from(z0)), cons(x1, from(x2))) -> c3(A__SEL(a__from(mark(z0)), a__from(mark(x2))), MARK(from(z0)))
   A__SEL(s(sel(z0, z1)), cons(x1, from(x2))) -> c3(A__SEL(a__sel(mark(z0), mark(z1)), a__from(mark(x2))), MARK(sel(z0, z1)))
   A__SEL(s(s(z0)), cons(x1, from(x2))) -> c3(A__SEL(s(mark(z0)), a__from(mark(x2))), MARK(s(z0)))
   A__SEL(s(x0), cons(x1, from(x2))) -> c3(MARK(x0))
   A__SEL(s(cons(z0, z1)), cons(x1, from(x2))) -> c3(MARK(cons(z0, z1)))
   A__SEL(s(0), cons(x1, from(x2))) -> c3(A__SEL(0, a__from(mark(x2))))
   A__SEL(s(x0), cons(x1, sel(x2, from(z0)))) -> c3(A__SEL(mark(x0), a__sel(mark(x2), a__from(mark(z0)))), MARK(x0))
   A__SEL(s(x0), cons(x1, sel(x2, sel(z0, z1)))) -> c3(A__SEL(mark(x0), a__sel(mark(x2), a__sel(mark(z0), mark(z1)))), MARK(x0))
   A__SEL(s(x0), cons(x1, sel(x2, cons(z0, z1)))) -> c3(A__SEL(mark(x0), a__sel(mark(x2), cons(mark(z0), z1))), MARK(x0))
   A__SEL(s(x0), cons(x1, sel(x2, s(z0)))) -> c3(A__SEL(mark(x0), a__sel(mark(x2), s(mark(z0)))), MARK(x0))
   A__SEL(s(x0), cons(x1, sel(x2, 0))) -> c3(A__SEL(mark(x0), a__sel(mark(x2), 0)), MARK(x0))
   A__SEL(s(x0), cons(x1, sel(from(z0), x3))) -> c3(A__SEL(mark(x0), a__sel(a__from(mark(z0)), mark(x3))), MARK(x0))
   A__SEL(s(x0), cons(x1, sel(sel(z0, z1), x3))) -> c3(A__SEL(mark(x0), a__sel(a__sel(mark(z0), mark(z1)), mark(x3))), MARK(x0))
   A__SEL(s(x0), cons(x1, sel(cons(z0, z1), x3))) -> c3(A__SEL(mark(x0), a__sel(cons(mark(z0), z1), mark(x3))), MARK(x0))
   A__SEL(s(x0), cons(x1, sel(s(z0), x3))) -> c3(A__SEL(mark(x0), a__sel(s(mark(z0)), mark(x3))), MARK(x0))
   A__SEL(s(x0), cons(x1, sel(0, x3))) -> c3(A__SEL(mark(x0), a__sel(0, mark(x3))), MARK(x0))
   A__SEL(s(from(z0)), cons(x1, sel(x2, x3))) -> c3(A__SEL(a__from(mark(z0)), a__sel(mark(x2), mark(x3))), MARK(from(z0)))
   A__SEL(s(sel(z0, z1)), cons(x1, sel(x2, x3))) -> c3(A__SEL(a__sel(mark(z0), mark(z1)), a__sel(mark(x2), mark(x3))), MARK(sel(z0, z1)))
   A__SEL(s(s(z0)), cons(x1, sel(x2, x3))) -> c3(A__SEL(s(mark(z0)), a__sel(mark(x2), mark(x3))), MARK(s(z0)))
   A__SEL(s(x0), cons(x1, sel(x2, x3))) -> c3(MARK(x0))
   A__SEL(s(cons(z0, z1)), cons(x1, sel(x2, x3))) -> c3(MARK(cons(z0, z1)))
   A__SEL(s(0), cons(x1, sel(x2, x3))) -> c3(A__SEL(0, a__sel(mark(x2), mark(x3))))
   A__SEL(s(x0), cons(x1, cons(from(z0), x3))) -> c3(A__SEL(mark(x0), cons(a__from(mark(z0)), x3)), MARK(x0))
   A__SEL(s(x0), cons(x1, cons(sel(z0, z1), x3))) -> c3(A__SEL(mark(x0), cons(a__sel(mark(z0), mark(z1)), x3)), MARK(x0))
   A__SEL(s(x0), cons(x1, cons(cons(z0, z1), x3))) -> c3(A__SEL(mark(x0), cons(cons(mark(z0), z1), x3)), MARK(x0))
   A__SEL(s(x0), cons(x1, cons(s(z0), x3))) -> c3(A__SEL(mark(x0), cons(s(mark(z0)), x3)), MARK(x0))
   A__SEL(s(x0), cons(x1, cons(0, x3))) -> c3(A__SEL(mark(x0), cons(0, x3)), MARK(x0))
   A__SEL(s(from(z0)), cons(x1, cons(x2, x3))) -> c3(A__SEL(a__from(mark(z0)), cons(mark(x2), x3)), MARK(from(z0)))
   A__SEL(s(sel(z0, z1)), cons(x1, cons(x2, x3))) -> c3(A__SEL(a__sel(mark(z0), mark(z1)), cons(mark(x2), x3)), MARK(sel(z0, z1)))
   A__SEL(s(s(z0)), cons(x1, cons(x2, x3))) -> c3(A__SEL(s(mark(z0)), cons(mark(x2), x3)), MARK(s(z0)))
   A__SEL(s(cons(z0, z1)), cons(x1, cons(x2, x3))) -> c3(MARK(cons(z0, z1)))
   A__SEL(s(0), cons(x1, cons(x2, x3))) -> c3(A__SEL(0, cons(mark(x2), x3)))
   A__SEL(s(from(from(z0))), cons(x1, x2)) -> c3(A__SEL(a__from(a__from(mark(z0))), mark(x2)), MARK(from(from(z0))))
   A__SEL(s(from(sel(z0, z1))), cons(x1, x2)) -> c3(A__SEL(a__from(a__sel(mark(z0), mark(z1))), mark(x2)), MARK(from(sel(z0, z1))))
   A__SEL(s(from(cons(z0, z1))), cons(x1, x2)) -> c3(A__SEL(a__from(cons(mark(z0), z1)), mark(x2)), MARK(from(cons(z0, z1))))
   A__SEL(s(from(s(z0))), cons(x1, x2)) -> c3(A__SEL(a__from(s(mark(z0))), mark(x2)), MARK(from(s(z0))))
   A__SEL(s(from(0)), cons(x1, x2)) -> c3(A__SEL(a__from(0), mark(x2)), MARK(from(0)))
   A__SEL(s(from(x0)), cons(x1, x2)) -> c3(MARK(from(x0)))
   A__SEL(s(from(x0)), cons(x1, s(z0))) -> c3(MARK(from(x0)))
   A__SEL(s(from(x0)), cons(x1, 0)) -> c3(MARK(from(x0)))
   A__SEL(s(sel(x0, from(z0))), cons(x2, x3)) -> c3(A__SEL(a__sel(mark(x0), a__from(mark(z0))), mark(x3)), MARK(sel(x0, from(z0))))
   A__SEL(s(sel(x0, sel(z0, z1))), cons(x2, x3)) -> c3(A__SEL(a__sel(mark(x0), a__sel(mark(z0), mark(z1))), mark(x3)), MARK(sel(x0, sel(z0, z1))))
   A__SEL(s(sel(x0, cons(z0, z1))), cons(x2, x3)) -> c3(A__SEL(a__sel(mark(x0), cons(mark(z0), z1)), mark(x3)), MARK(sel(x0, cons(z0, z1))))
   A__SEL(s(sel(x0, s(z0))), cons(x2, x3)) -> c3(A__SEL(a__sel(mark(x0), s(mark(z0))), mark(x3)), MARK(sel(x0, s(z0))))
   A__SEL(s(sel(x0, 0)), cons(x2, x3)) -> c3(A__SEL(a__sel(mark(x0), 0), mark(x3)), MARK(sel(x0, 0)))
   A__SEL(s(sel(from(z0), x1)), cons(x2, x3)) -> c3(A__SEL(a__sel(a__from(mark(z0)), mark(x1)), mark(x3)), MARK(sel(from(z0), x1)))
   A__SEL(s(sel(sel(z0, z1), x1)), cons(x2, x3)) -> c3(A__SEL(a__sel(a__sel(mark(z0), mark(z1)), mark(x1)), mark(x3)), MARK(sel(sel(z0, z1), x1)))
   A__SEL(s(sel(cons(z0, z1), x1)), cons(x2, x3)) -> c3(A__SEL(a__sel(cons(mark(z0), z1), mark(x1)), mark(x3)), MARK(sel(cons(z0, z1), x1)))
   A__SEL(s(sel(s(z0), x1)), cons(x2, x3)) -> c3(A__SEL(a__sel(s(mark(z0)), mark(x1)), mark(x3)), MARK(sel(s(z0), x1)))
   A__SEL(s(sel(0, x1)), cons(x2, x3)) -> c3(A__SEL(a__sel(0, mark(x1)), mark(x3)), MARK(sel(0, x1)))
   A__SEL(s(sel(x0, x1)), cons(x2, s(z0))) -> c3(MARK(sel(x0, x1)))
   A__SEL(s(sel(x0, x1)), cons(x2, 0)) -> c3(MARK(sel(x0, x1)))
   A__SEL(s(sel(x0, x1)), cons(x2, x3)) -> c3(MARK(sel(x0, x1)))
   A__SEL(s(s(from(z0))), cons(x1, x2)) -> c3(A__SEL(s(a__from(mark(z0))), mark(x2)), MARK(s(from(z0))))
   A__SEL(s(s(sel(z0, z1))), cons(x1, x2)) -> c3(A__SEL(s(a__sel(mark(z0), mark(z1))), mark(x2)), MARK(s(sel(z0, z1))))
   A__SEL(s(s(cons(z0, z1))), cons(x1, x2)) -> c3(A__SEL(s(cons(mark(z0), z1)), mark(x2)), MARK(s(cons(z0, z1))))
   A__SEL(s(s(s(z0))), cons(x1, x2)) -> c3(A__SEL(s(s(mark(z0))), mark(x2)), MARK(s(s(z0))))
   A__SEL(s(s(0)), cons(x1, x2)) -> c3(A__SEL(s(0), mark(x2)), MARK(s(0)))
   A__SEL(s(s(x0)), cons(x1, x2)) -> c3(MARK(s(x0)))
   A__SEL(s(s(x0)), cons(x1, s(z0))) -> c3(MARK(s(x0)))
   A__SEL(s(s(x0)), cons(x1, 0)) -> c3(MARK(s(x0)))
   A__SEL(s(x0), cons(x1, from(x2))) -> c4(A__SEL(mark(x0), cons(mark(mark(x2)), from(s(mark(x2))))), MARK(from(x2)))
   A__SEL(s(x0), cons(x1, from(from(z0)))) -> c4(A__SEL(mark(x0), a__from(a__from(mark(z0)))), MARK(from(from(z0))))
   A__SEL(s(x0), cons(x1, from(sel(z0, z1)))) -> c4(A__SEL(mark(x0), a__from(a__sel(mark(z0), mark(z1)))), MARK(from(sel(z0, z1))))
   A__SEL(s(x0), cons(x1, from(cons(z0, z1)))) -> c4(A__SEL(mark(x0), a__from(cons(mark(z0), z1))), MARK(from(cons(z0, z1))))
   A__SEL(s(x0), cons(x1, from(s(z0)))) -> c4(A__SEL(mark(x0), a__from(s(mark(z0)))), MARK(from(s(z0))))
   A__SEL(s(x0), cons(x1, from(0))) -> c4(A__SEL(mark(x0), a__from(0)), MARK(from(0)))
   A__SEL(s(from(z0)), cons(x1, from(x2))) -> c4(A__SEL(a__from(mark(z0)), a__from(mark(x2))), MARK(from(x2)))
   A__SEL(s(sel(z0, z1)), cons(x1, from(x2))) -> c4(A__SEL(a__sel(mark(z0), mark(z1)), a__from(mark(x2))), MARK(from(x2)))
   A__SEL(s(s(z0)), cons(x1, from(x2))) -> c4(A__SEL(s(mark(z0)), a__from(mark(x2))), MARK(from(x2)))
   A__SEL(s(0), cons(x1, from(x2))) -> c4(A__SEL(0, a__from(mark(x2))), MARK(from(x2)))
   A__SEL(s(x0), cons(x1, from(x2))) -> c4(MARK(from(x2)))
   A__SEL(s(cons(z0, z1)), cons(x1, from(x2))) -> c4(MARK(from(x2)))
   A__SEL(s(x0), cons(x1, sel(x2, from(z0)))) -> c4(A__SEL(mark(x0), a__sel(mark(x2), a__from(mark(z0)))), MARK(sel(x2, from(z0))))
   A__SEL(s(x0), cons(x1, sel(x2, sel(z0, z1)))) -> c4(A__SEL(mark(x0), a__sel(mark(x2), a__sel(mark(z0), mark(z1)))), MARK(sel(x2, sel(z0, z1))))
   A__SEL(s(x0), cons(x1, sel(x2, cons(z0, z1)))) -> c4(A__SEL(mark(x0), a__sel(mark(x2), cons(mark(z0), z1))), MARK(sel(x2, cons(z0, z1))))
   A__SEL(s(x0), cons(x1, sel(x2, s(z0)))) -> c4(A__SEL(mark(x0), a__sel(mark(x2), s(mark(z0)))), MARK(sel(x2, s(z0))))
   A__SEL(s(x0), cons(x1, sel(x2, 0))) -> c4(A__SEL(mark(x0), a__sel(mark(x2), 0)), MARK(sel(x2, 0)))
   A__SEL(s(x0), cons(x1, sel(from(z0), x3))) -> c4(A__SEL(mark(x0), a__sel(a__from(mark(z0)), mark(x3))), MARK(sel(from(z0), x3)))
   A__SEL(s(x0), cons(x1, sel(sel(z0, z1), x3))) -> c4(A__SEL(mark(x0), a__sel(a__sel(mark(z0), mark(z1)), mark(x3))), MARK(sel(sel(z0, z1), x3)))
   A__SEL(s(x0), cons(x1, sel(cons(z0, z1), x3))) -> c4(A__SEL(mark(x0), a__sel(cons(mark(z0), z1), mark(x3))), MARK(sel(cons(z0, z1), x3)))
   A__SEL(s(x0), cons(x1, sel(s(z0), x3))) -> c4(A__SEL(mark(x0), a__sel(s(mark(z0)), mark(x3))), MARK(sel(s(z0), x3)))
   A__SEL(s(x0), cons(x1, sel(0, x3))) -> c4(A__SEL(mark(x0), a__sel(0, mark(x3))), MARK(sel(0, x3)))
   A__SEL(s(from(z0)), cons(x1, sel(x2, x3))) -> c4(A__SEL(a__from(mark(z0)), a__sel(mark(x2), mark(x3))), MARK(sel(x2, x3)))
   A__SEL(s(sel(z0, z1)), cons(x1, sel(x2, x3))) -> c4(A__SEL(a__sel(mark(z0), mark(z1)), a__sel(mark(x2), mark(x3))), MARK(sel(x2, x3)))
   A__SEL(s(s(z0)), cons(x1, sel(x2, x3))) -> c4(A__SEL(s(mark(z0)), a__sel(mark(x2), mark(x3))), MARK(sel(x2, x3)))
   A__SEL(s(0), cons(x1, sel(x2, x3))) -> c4(A__SEL(0, a__sel(mark(x2), mark(x3))), MARK(sel(x2, x3)))
   A__SEL(s(x0), cons(x1, sel(x2, x3))) -> c4(MARK(sel(x2, x3)))
   A__SEL(s(cons(z0, z1)), cons(x1, sel(x2, x3))) -> c4(MARK(sel(x2, x3)))
   A__SEL(s(x0), cons(x1, cons(from(z0), x3))) -> c4(A__SEL(mark(x0), cons(a__from(mark(z0)), x3)), MARK(cons(from(z0), x3)))
   A__SEL(s(x0), cons(x1, cons(sel(z0, z1), x3))) -> c4(A__SEL(mark(x0), cons(a__sel(mark(z0), mark(z1)), x3)), MARK(cons(sel(z0, z1), x3)))
   A__SEL(s(x0), cons(x1, cons(cons(z0, z1), x3))) -> c4(A__SEL(mark(x0), cons(cons(mark(z0), z1), x3)), MARK(cons(cons(z0, z1), x3)))
   A__SEL(s(x0), cons(x1, cons(s(z0), x3))) -> c4(A__SEL(mark(x0), cons(s(mark(z0)), x3)), MARK(cons(s(z0), x3)))
   A__SEL(s(x0), cons(x1, cons(0, x3))) -> c4(A__SEL(mark(x0), cons(0, x3)), MARK(cons(0, x3)))
   A__SEL(s(from(z0)), cons(x1, cons(x2, x3))) -> c4(A__SEL(a__from(mark(z0)), cons(mark(x2), x3)), MARK(cons(x2, x3)))
   A__SEL(s(sel(z0, z1)), cons(x1, cons(x2, x3))) -> c4(A__SEL(a__sel(mark(z0), mark(z1)), cons(mark(x2), x3)), MARK(cons(x2, x3)))
   A__SEL(s(cons(z0, z1)), cons(x1, cons(x2, x3))) -> c4(A__SEL(cons(mark(z0), z1), cons(mark(x2), x3)), MARK(cons(x2, x3)))
   A__SEL(s(s(z0)), cons(x1, cons(x2, x3))) -> c4(A__SEL(s(mark(z0)), cons(mark(x2), x3)), MARK(cons(x2, x3)))
   A__SEL(s(0), cons(x1, cons(x2, x3))) -> c4(A__SEL(0, cons(mark(x2), x3)), MARK(cons(x2, x3)))
   A__SEL(s(x0), cons(x1, cons(x2, x3))) -> c4(MARK(cons(x2, x3)))
K tuples:none
Defined Rule Symbols:   a__from_1, a__sel_2, mark_1

Defined Pair Symbols:   A__FROM_1, A__SEL_2, MARK_1

Compound Symbols:   c_1, c2_1, c6_2, c9_1, c10_1, c3_1, c4_2, c4_1, c7_2, c7_1, c8_2, c8_1, c3_2


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

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

(116)
Obligation:
Complexity Dependency Tuples Problem

Rules:
   a__from(z0) -> cons(mark(z0), from(s(z0)))
   a__from(z0) -> from(z0)
   a__sel(0, cons(z0, z1)) -> mark(z0)
   a__sel(s(z0), cons(z1, z2)) -> a__sel(mark(z0), mark(z2))
   a__sel(z0, z1) -> sel(z0, z1)
   mark(from(z0)) -> a__from(mark(z0))
   mark(sel(z0, z1)) -> a__sel(mark(z0), mark(z1))
   mark(cons(z0, z1)) -> cons(mark(z0), z1)
   mark(s(z0)) -> s(mark(z0))
   mark(0) -> 0
Tuples:
   A__FROM(z0) -> c(MARK(z0))
   A__SEL(0, cons(z0, z1)) -> c2(MARK(z0))
   MARK(from(z0)) -> c6(A__FROM(mark(z0)), MARK(z0))
   MARK(cons(z0, z1)) -> c9(MARK(z0))
   MARK(s(z0)) -> c10(MARK(z0))
   A__SEL(s(x0), cons(x1, s(z0))) -> c3(MARK(x0))
   A__SEL(s(x0), cons(x1, 0)) -> c3(MARK(x0))
   A__SEL(s(cons(z0, z1)), cons(x1, x2)) -> c3(MARK(cons(z0, z1)))
   A__SEL(s(from(z0)), cons(x1, x2)) -> c4(A__SEL(a__from(mark(z0)), mark(x2)), MARK(x2))
   A__SEL(s(sel(z0, z1)), cons(x1, x2)) -> c4(A__SEL(a__sel(mark(z0), mark(z1)), mark(x2)), MARK(x2))
   A__SEL(s(s(z0)), cons(x1, x2)) -> c4(A__SEL(s(mark(z0)), mark(x2)), MARK(x2))
   A__SEL(s(0), cons(x1, x2)) -> c4(A__SEL(0, mark(x2)), MARK(x2))
   A__SEL(s(x0), cons(x1, s(z0))) -> c4(MARK(s(z0)))
   A__SEL(s(cons(z0, z1)), cons(x1, x2)) -> c4(MARK(x2))
   MARK(sel(x0, from(z0))) -> c7(A__SEL(mark(x0), a__from(mark(z0))), MARK(x0))
   MARK(sel(x0, sel(z0, z1))) -> c7(A__SEL(mark(x0), a__sel(mark(z0), mark(z1))), MARK(x0))
   MARK(sel(x0, cons(z0, z1))) -> c7(A__SEL(mark(x0), cons(mark(z0), z1)), MARK(x0))
   MARK(sel(from(z0), x1)) -> c7(A__SEL(a__from(mark(z0)), mark(x1)), MARK(from(z0)))
   MARK(sel(sel(z0, z1), x1)) -> c7(A__SEL(a__sel(mark(z0), mark(z1)), mark(x1)), MARK(sel(z0, z1)))
   MARK(sel(s(z0), x1)) -> c7(A__SEL(s(mark(z0)), mark(x1)), MARK(s(z0)))
   MARK(sel(x0, s(z0))) -> c7(MARK(x0))
   MARK(sel(x0, 0)) -> c7(MARK(x0))
   MARK(sel(cons(z0, z1), x1)) -> c7(MARK(cons(z0, z1)))
   MARK(sel(0, x1)) -> c7(A__SEL(0, mark(x1)))
   MARK(sel(x0, from(z0))) -> c8(A__SEL(mark(x0), a__from(mark(z0))), MARK(from(z0)))
   MARK(sel(x0, sel(z0, z1))) -> c8(A__SEL(mark(x0), a__sel(mark(z0), mark(z1))), MARK(sel(z0, z1)))
   MARK(sel(x0, cons(z0, z1))) -> c8(A__SEL(mark(x0), cons(mark(z0), z1)), MARK(cons(z0, z1)))
   MARK(sel(from(z0), x1)) -> c8(A__SEL(a__from(mark(z0)), mark(x1)), MARK(x1))
   MARK(sel(sel(z0, z1), x1)) -> c8(A__SEL(a__sel(mark(z0), mark(z1)), mark(x1)), MARK(x1))
   MARK(sel(s(z0), x1)) -> c8(A__SEL(s(mark(z0)), mark(x1)), MARK(x1))
   MARK(sel(0, x1)) -> c8(A__SEL(0, mark(x1)), MARK(x1))
   MARK(sel(x0, s(z0))) -> c8(MARK(s(z0)))
   MARK(sel(cons(z0, z1), x1)) -> c8(MARK(x1))
   A__SEL(s(x0), cons(x1, from(x2))) -> c3(A__SEL(mark(x0), cons(mark(mark(x2)), from(s(mark(x2))))), MARK(x0))
   A__SEL(s(x0), cons(x1, from(from(z0)))) -> c3(A__SEL(mark(x0), a__from(a__from(mark(z0)))), MARK(x0))
   A__SEL(s(x0), cons(x1, from(sel(z0, z1)))) -> c3(A__SEL(mark(x0), a__from(a__sel(mark(z0), mark(z1)))), MARK(x0))
   A__SEL(s(x0), cons(x1, from(cons(z0, z1)))) -> c3(A__SEL(mark(x0), a__from(cons(mark(z0), z1))), MARK(x0))
   A__SEL(s(x0), cons(x1, from(s(z0)))) -> c3(A__SEL(mark(x0), a__from(s(mark(z0)))), MARK(x0))
   A__SEL(s(x0), cons(x1, from(0))) -> c3(A__SEL(mark(x0), a__from(0)), MARK(x0))
   A__SEL(s(from(z0)), cons(x1, from(x2))) -> c3(A__SEL(a__from(mark(z0)), a__from(mark(x2))), MARK(from(z0)))
   A__SEL(s(sel(z0, z1)), cons(x1, from(x2))) -> c3(A__SEL(a__sel(mark(z0), mark(z1)), a__from(mark(x2))), MARK(sel(z0, z1)))
   A__SEL(s(s(z0)), cons(x1, from(x2))) -> c3(A__SEL(s(mark(z0)), a__from(mark(x2))), MARK(s(z0)))
   A__SEL(s(x0), cons(x1, from(x2))) -> c3(MARK(x0))
   A__SEL(s(cons(z0, z1)), cons(x1, from(x2))) -> c3(MARK(cons(z0, z1)))
   A__SEL(s(0), cons(x1, from(x2))) -> c3(A__SEL(0, a__from(mark(x2))))
   A__SEL(s(x0), cons(x1, sel(x2, from(z0)))) -> c3(A__SEL(mark(x0), a__sel(mark(x2), a__from(mark(z0)))), MARK(x0))
   A__SEL(s(x0), cons(x1, sel(x2, sel(z0, z1)))) -> c3(A__SEL(mark(x0), a__sel(mark(x2), a__sel(mark(z0), mark(z1)))), MARK(x0))
   A__SEL(s(x0), cons(x1, sel(x2, cons(z0, z1)))) -> c3(A__SEL(mark(x0), a__sel(mark(x2), cons(mark(z0), z1))), MARK(x0))
   A__SEL(s(x0), cons(x1, sel(x2, s(z0)))) -> c3(A__SEL(mark(x0), a__sel(mark(x2), s(mark(z0)))), MARK(x0))
   A__SEL(s(x0), cons(x1, sel(x2, 0))) -> c3(A__SEL(mark(x0), a__sel(mark(x2), 0)), MARK(x0))
   A__SEL(s(x0), cons(x1, sel(from(z0), x3))) -> c3(A__SEL(mark(x0), a__sel(a__from(mark(z0)), mark(x3))), MARK(x0))
   A__SEL(s(x0), cons(x1, sel(sel(z0, z1), x3))) -> c3(A__SEL(mark(x0), a__sel(a__sel(mark(z0), mark(z1)), mark(x3))), MARK(x0))
   A__SEL(s(x0), cons(x1, sel(cons(z0, z1), x3))) -> c3(A__SEL(mark(x0), a__sel(cons(mark(z0), z1), mark(x3))), MARK(x0))
   A__SEL(s(x0), cons(x1, sel(s(z0), x3))) -> c3(A__SEL(mark(x0), a__sel(s(mark(z0)), mark(x3))), MARK(x0))
   A__SEL(s(x0), cons(x1, sel(0, x3))) -> c3(A__SEL(mark(x0), a__sel(0, mark(x3))), MARK(x0))
   A__SEL(s(from(z0)), cons(x1, sel(x2, x3))) -> c3(A__SEL(a__from(mark(z0)), a__sel(mark(x2), mark(x3))), MARK(from(z0)))
   A__SEL(s(sel(z0, z1)), cons(x1, sel(x2, x3))) -> c3(A__SEL(a__sel(mark(z0), mark(z1)), a__sel(mark(x2), mark(x3))), MARK(sel(z0, z1)))
   A__SEL(s(s(z0)), cons(x1, sel(x2, x3))) -> c3(A__SEL(s(mark(z0)), a__sel(mark(x2), mark(x3))), MARK(s(z0)))
   A__SEL(s(x0), cons(x1, sel(x2, x3))) -> c3(MARK(x0))
   A__SEL(s(cons(z0, z1)), cons(x1, sel(x2, x3))) -> c3(MARK(cons(z0, z1)))
   A__SEL(s(0), cons(x1, sel(x2, x3))) -> c3(A__SEL(0, a__sel(mark(x2), mark(x3))))
   A__SEL(s(x0), cons(x1, cons(from(z0), x3))) -> c3(A__SEL(mark(x0), cons(a__from(mark(z0)), x3)), MARK(x0))
   A__SEL(s(x0), cons(x1, cons(sel(z0, z1), x3))) -> c3(A__SEL(mark(x0), cons(a__sel(mark(z0), mark(z1)), x3)), MARK(x0))
   A__SEL(s(x0), cons(x1, cons(cons(z0, z1), x3))) -> c3(A__SEL(mark(x0), cons(cons(mark(z0), z1), x3)), MARK(x0))
   A__SEL(s(x0), cons(x1, cons(s(z0), x3))) -> c3(A__SEL(mark(x0), cons(s(mark(z0)), x3)), MARK(x0))
   A__SEL(s(x0), cons(x1, cons(0, x3))) -> c3(A__SEL(mark(x0), cons(0, x3)), MARK(x0))
   A__SEL(s(from(z0)), cons(x1, cons(x2, x3))) -> c3(A__SEL(a__from(mark(z0)), cons(mark(x2), x3)), MARK(from(z0)))
   A__SEL(s(sel(z0, z1)), cons(x1, cons(x2, x3))) -> c3(A__SEL(a__sel(mark(z0), mark(z1)), cons(mark(x2), x3)), MARK(sel(z0, z1)))
   A__SEL(s(s(z0)), cons(x1, cons(x2, x3))) -> c3(A__SEL(s(mark(z0)), cons(mark(x2), x3)), MARK(s(z0)))
   A__SEL(s(cons(z0, z1)), cons(x1, cons(x2, x3))) -> c3(MARK(cons(z0, z1)))
   A__SEL(s(0), cons(x1, cons(x2, x3))) -> c3(A__SEL(0, cons(mark(x2), x3)))
   A__SEL(s(from(from(z0))), cons(x1, x2)) -> c3(A__SEL(a__from(a__from(mark(z0))), mark(x2)), MARK(from(from(z0))))
   A__SEL(s(from(sel(z0, z1))), cons(x1, x2)) -> c3(A__SEL(a__from(a__sel(mark(z0), mark(z1))), mark(x2)), MARK(from(sel(z0, z1))))
   A__SEL(s(from(cons(z0, z1))), cons(x1, x2)) -> c3(A__SEL(a__from(cons(mark(z0), z1)), mark(x2)), MARK(from(cons(z0, z1))))
   A__SEL(s(from(s(z0))), cons(x1, x2)) -> c3(A__SEL(a__from(s(mark(z0))), mark(x2)), MARK(from(s(z0))))
   A__SEL(s(from(0)), cons(x1, x2)) -> c3(A__SEL(a__from(0), mark(x2)), MARK(from(0)))
   A__SEL(s(from(x0)), cons(x1, x2)) -> c3(MARK(from(x0)))
   A__SEL(s(from(x0)), cons(x1, s(z0))) -> c3(MARK(from(x0)))
   A__SEL(s(from(x0)), cons(x1, 0)) -> c3(MARK(from(x0)))
   A__SEL(s(sel(x0, from(z0))), cons(x2, x3)) -> c3(A__SEL(a__sel(mark(x0), a__from(mark(z0))), mark(x3)), MARK(sel(x0, from(z0))))
   A__SEL(s(sel(x0, sel(z0, z1))), cons(x2, x3)) -> c3(A__SEL(a__sel(mark(x0), a__sel(mark(z0), mark(z1))), mark(x3)), MARK(sel(x0, sel(z0, z1))))
   A__SEL(s(sel(x0, cons(z0, z1))), cons(x2, x3)) -> c3(A__SEL(a__sel(mark(x0), cons(mark(z0), z1)), mark(x3)), MARK(sel(x0, cons(z0, z1))))
   A__SEL(s(sel(x0, s(z0))), cons(x2, x3)) -> c3(A__SEL(a__sel(mark(x0), s(mark(z0))), mark(x3)), MARK(sel(x0, s(z0))))
   A__SEL(s(sel(x0, 0)), cons(x2, x3)) -> c3(A__SEL(a__sel(mark(x0), 0), mark(x3)), MARK(sel(x0, 0)))
   A__SEL(s(sel(from(z0), x1)), cons(x2, x3)) -> c3(A__SEL(a__sel(a__from(mark(z0)), mark(x1)), mark(x3)), MARK(sel(from(z0), x1)))
   A__SEL(s(sel(sel(z0, z1), x1)), cons(x2, x3)) -> c3(A__SEL(a__sel(a__sel(mark(z0), mark(z1)), mark(x1)), mark(x3)), MARK(sel(sel(z0, z1), x1)))
   A__SEL(s(sel(cons(z0, z1), x1)), cons(x2, x3)) -> c3(A__SEL(a__sel(cons(mark(z0), z1), mark(x1)), mark(x3)), MARK(sel(cons(z0, z1), x1)))
   A__SEL(s(sel(s(z0), x1)), cons(x2, x3)) -> c3(A__SEL(a__sel(s(mark(z0)), mark(x1)), mark(x3)), MARK(sel(s(z0), x1)))
   A__SEL(s(sel(0, x1)), cons(x2, x3)) -> c3(A__SEL(a__sel(0, mark(x1)), mark(x3)), MARK(sel(0, x1)))
   A__SEL(s(sel(x0, x1)), cons(x2, s(z0))) -> c3(MARK(sel(x0, x1)))
   A__SEL(s(sel(x0, x1)), cons(x2, 0)) -> c3(MARK(sel(x0, x1)))
   A__SEL(s(sel(x0, x1)), cons(x2, x3)) -> c3(MARK(sel(x0, x1)))
   A__SEL(s(s(from(z0))), cons(x1, x2)) -> c3(A__SEL(s(a__from(mark(z0))), mark(x2)), MARK(s(from(z0))))
   A__SEL(s(s(sel(z0, z1))), cons(x1, x2)) -> c3(A__SEL(s(a__sel(mark(z0), mark(z1))), mark(x2)), MARK(s(sel(z0, z1))))
   A__SEL(s(s(cons(z0, z1))), cons(x1, x2)) -> c3(A__SEL(s(cons(mark(z0), z1)), mark(x2)), MARK(s(cons(z0, z1))))
   A__SEL(s(s(s(z0))), cons(x1, x2)) -> c3(A__SEL(s(s(mark(z0))), mark(x2)), MARK(s(s(z0))))
   A__SEL(s(s(0)), cons(x1, x2)) -> c3(A__SEL(s(0), mark(x2)), MARK(s(0)))
   A__SEL(s(s(x0)), cons(x1, x2)) -> c3(MARK(s(x0)))
   A__SEL(s(s(x0)), cons(x1, s(z0))) -> c3(MARK(s(x0)))
   A__SEL(s(s(x0)), cons(x1, 0)) -> c3(MARK(s(x0)))
   A__SEL(s(x0), cons(x1, from(x2))) -> c4(A__SEL(mark(x0), cons(mark(mark(x2)), from(s(mark(x2))))), MARK(from(x2)))
   A__SEL(s(x0), cons(x1, from(from(z0)))) -> c4(A__SEL(mark(x0), a__from(a__from(mark(z0)))), MARK(from(from(z0))))
   A__SEL(s(x0), cons(x1, from(sel(z0, z1)))) -> c4(A__SEL(mark(x0), a__from(a__sel(mark(z0), mark(z1)))), MARK(from(sel(z0, z1))))
   A__SEL(s(x0), cons(x1, from(cons(z0, z1)))) -> c4(A__SEL(mark(x0), a__from(cons(mark(z0), z1))), MARK(from(cons(z0, z1))))
   A__SEL(s(x0), cons(x1, from(s(z0)))) -> c4(A__SEL(mark(x0), a__from(s(mark(z0)))), MARK(from(s(z0))))
   A__SEL(s(x0), cons(x1, from(0))) -> c4(A__SEL(mark(x0), a__from(0)), MARK(from(0)))
   A__SEL(s(from(z0)), cons(x1, from(x2))) -> c4(A__SEL(a__from(mark(z0)), a__from(mark(x2))), MARK(from(x2)))
   A__SEL(s(sel(z0, z1)), cons(x1, from(x2))) -> c4(A__SEL(a__sel(mark(z0), mark(z1)), a__from(mark(x2))), MARK(from(x2)))
   A__SEL(s(s(z0)), cons(x1, from(x2))) -> c4(A__SEL(s(mark(z0)), a__from(mark(x2))), MARK(from(x2)))
   A__SEL(s(0), cons(x1, from(x2))) -> c4(A__SEL(0, a__from(mark(x2))), MARK(from(x2)))
   A__SEL(s(x0), cons(x1, from(x2))) -> c4(MARK(from(x2)))
   A__SEL(s(cons(z0, z1)), cons(x1, from(x2))) -> c4(MARK(from(x2)))
   A__SEL(s(x0), cons(x1, sel(x2, from(z0)))) -> c4(A__SEL(mark(x0), a__sel(mark(x2), a__from(mark(z0)))), MARK(sel(x2, from(z0))))
   A__SEL(s(x0), cons(x1, sel(x2, sel(z0, z1)))) -> c4(A__SEL(mark(x0), a__sel(mark(x2), a__sel(mark(z0), mark(z1)))), MARK(sel(x2, sel(z0, z1))))
   A__SEL(s(x0), cons(x1, sel(x2, cons(z0, z1)))) -> c4(A__SEL(mark(x0), a__sel(mark(x2), cons(mark(z0), z1))), MARK(sel(x2, cons(z0, z1))))
   A__SEL(s(x0), cons(x1, sel(x2, s(z0)))) -> c4(A__SEL(mark(x0), a__sel(mark(x2), s(mark(z0)))), MARK(sel(x2, s(z0))))
   A__SEL(s(x0), cons(x1, sel(x2, 0))) -> c4(A__SEL(mark(x0), a__sel(mark(x2), 0)), MARK(sel(x2, 0)))
   A__SEL(s(x0), cons(x1, sel(from(z0), x3))) -> c4(A__SEL(mark(x0), a__sel(a__from(mark(z0)), mark(x3))), MARK(sel(from(z0), x3)))
   A__SEL(s(x0), cons(x1, sel(sel(z0, z1), x3))) -> c4(A__SEL(mark(x0), a__sel(a__sel(mark(z0), mark(z1)), mark(x3))), MARK(sel(sel(z0, z1), x3)))
   A__SEL(s(x0), cons(x1, sel(cons(z0, z1), x3))) -> c4(A__SEL(mark(x0), a__sel(cons(mark(z0), z1), mark(x3))), MARK(sel(cons(z0, z1), x3)))
   A__SEL(s(x0), cons(x1, sel(s(z0), x3))) -> c4(A__SEL(mark(x0), a__sel(s(mark(z0)), mark(x3))), MARK(sel(s(z0), x3)))
   A__SEL(s(x0), cons(x1, sel(0, x3))) -> c4(A__SEL(mark(x0), a__sel(0, mark(x3))), MARK(sel(0, x3)))
   A__SEL(s(from(z0)), cons(x1, sel(x2, x3))) -> c4(A__SEL(a__from(mark(z0)), a__sel(mark(x2), mark(x3))), MARK(sel(x2, x3)))
   A__SEL(s(sel(z0, z1)), cons(x1, sel(x2, x3))) -> c4(A__SEL(a__sel(mark(z0), mark(z1)), a__sel(mark(x2), mark(x3))), MARK(sel(x2, x3)))
   A__SEL(s(s(z0)), cons(x1, sel(x2, x3))) -> c4(A__SEL(s(mark(z0)), a__sel(mark(x2), mark(x3))), MARK(sel(x2, x3)))
   A__SEL(s(0), cons(x1, sel(x2, x3))) -> c4(A__SEL(0, a__sel(mark(x2), mark(x3))), MARK(sel(x2, x3)))
   A__SEL(s(x0), cons(x1, sel(x2, x3))) -> c4(MARK(sel(x2, x3)))
   A__SEL(s(cons(z0, z1)), cons(x1, sel(x2, x3))) -> c4(MARK(sel(x2, x3)))
   A__SEL(s(x0), cons(x1, cons(from(z0), x3))) -> c4(A__SEL(mark(x0), cons(a__from(mark(z0)), x3)), MARK(cons(from(z0), x3)))
   A__SEL(s(x0), cons(x1, cons(sel(z0, z1), x3))) -> c4(A__SEL(mark(x0), cons(a__sel(mark(z0), mark(z1)), x3)), MARK(cons(sel(z0, z1), x3)))
   A__SEL(s(x0), cons(x1, cons(cons(z0, z1), x3))) -> c4(A__SEL(mark(x0), cons(cons(mark(z0), z1), x3)), MARK(cons(cons(z0, z1), x3)))
   A__SEL(s(x0), cons(x1, cons(s(z0), x3))) -> c4(A__SEL(mark(x0), cons(s(mark(z0)), x3)), MARK(cons(s(z0), x3)))
   A__SEL(s(x0), cons(x1, cons(0, x3))) -> c4(A__SEL(mark(x0), cons(0, x3)), MARK(cons(0, x3)))
   A__SEL(s(from(z0)), cons(x1, cons(x2, x3))) -> c4(A__SEL(a__from(mark(z0)), cons(mark(x2), x3)), MARK(cons(x2, x3)))
   A__SEL(s(sel(z0, z1)), cons(x1, cons(x2, x3))) -> c4(A__SEL(a__sel(mark(z0), mark(z1)), cons(mark(x2), x3)), MARK(cons(x2, x3)))
   A__SEL(s(s(z0)), cons(x1, cons(x2, x3))) -> c4(A__SEL(s(mark(z0)), cons(mark(x2), x3)), MARK(cons(x2, x3)))
   A__SEL(s(0), cons(x1, cons(x2, x3))) -> c4(A__SEL(0, cons(mark(x2), x3)), MARK(cons(x2, x3)))
   A__SEL(s(x0), cons(x1, cons(x2, x3))) -> c4(MARK(cons(x2, x3)))
   A__SEL(s(cons(z0, z1)), cons(x1, cons(x2, x3))) -> c4(MARK(cons(x2, x3)))
S tuples:
   A__FROM(z0) -> c(MARK(z0))
   A__SEL(0, cons(z0, z1)) -> c2(MARK(z0))
   MARK(from(z0)) -> c6(A__FROM(mark(z0)), MARK(z0))
   MARK(cons(z0, z1)) -> c9(MARK(z0))
   MARK(s(z0)) -> c10(MARK(z0))
   A__SEL(s(x0), cons(x1, s(z0))) -> c3(MARK(x0))
   A__SEL(s(x0), cons(x1, 0)) -> c3(MARK(x0))
   A__SEL(s(cons(z0, z1)), cons(x1, x2)) -> c3(MARK(cons(z0, z1)))
   A__SEL(s(from(z0)), cons(x1, x2)) -> c4(A__SEL(a__from(mark(z0)), mark(x2)), MARK(x2))
   A__SEL(s(sel(z0, z1)), cons(x1, x2)) -> c4(A__SEL(a__sel(mark(z0), mark(z1)), mark(x2)), MARK(x2))
   A__SEL(s(s(z0)), cons(x1, x2)) -> c4(A__SEL(s(mark(z0)), mark(x2)), MARK(x2))
   A__SEL(s(0), cons(x1, x2)) -> c4(A__SEL(0, mark(x2)), MARK(x2))
   A__SEL(s(x0), cons(x1, s(z0))) -> c4(MARK(s(z0)))
   A__SEL(s(cons(z0, z1)), cons(x1, x2)) -> c4(MARK(x2))
   MARK(sel(x0, from(z0))) -> c7(A__SEL(mark(x0), a__from(mark(z0))), MARK(x0))
   MARK(sel(x0, sel(z0, z1))) -> c7(A__SEL(mark(x0), a__sel(mark(z0), mark(z1))), MARK(x0))
   MARK(sel(x0, cons(z0, z1))) -> c7(A__SEL(mark(x0), cons(mark(z0), z1)), MARK(x0))
   MARK(sel(from(z0), x1)) -> c7(A__SEL(a__from(mark(z0)), mark(x1)), MARK(from(z0)))
   MARK(sel(sel(z0, z1), x1)) -> c7(A__SEL(a__sel(mark(z0), mark(z1)), mark(x1)), MARK(sel(z0, z1)))
   MARK(sel(s(z0), x1)) -> c7(A__SEL(s(mark(z0)), mark(x1)), MARK(s(z0)))
   MARK(sel(x0, s(z0))) -> c7(MARK(x0))
   MARK(sel(x0, 0)) -> c7(MARK(x0))
   MARK(sel(cons(z0, z1), x1)) -> c7(MARK(cons(z0, z1)))
   MARK(sel(0, x1)) -> c7(A__SEL(0, mark(x1)))
   MARK(sel(x0, from(z0))) -> c8(A__SEL(mark(x0), a__from(mark(z0))), MARK(from(z0)))
   MARK(sel(x0, sel(z0, z1))) -> c8(A__SEL(mark(x0), a__sel(mark(z0), mark(z1))), MARK(sel(z0, z1)))
   MARK(sel(x0, cons(z0, z1))) -> c8(A__SEL(mark(x0), cons(mark(z0), z1)), MARK(cons(z0, z1)))
   MARK(sel(from(z0), x1)) -> c8(A__SEL(a__from(mark(z0)), mark(x1)), MARK(x1))
   MARK(sel(sel(z0, z1), x1)) -> c8(A__SEL(a__sel(mark(z0), mark(z1)), mark(x1)), MARK(x1))
   MARK(sel(s(z0), x1)) -> c8(A__SEL(s(mark(z0)), mark(x1)), MARK(x1))
   MARK(sel(0, x1)) -> c8(A__SEL(0, mark(x1)), MARK(x1))
   MARK(sel(x0, s(z0))) -> c8(MARK(s(z0)))
   MARK(sel(cons(z0, z1), x1)) -> c8(MARK(x1))
   A__SEL(s(x0), cons(x1, from(x2))) -> c3(A__SEL(mark(x0), cons(mark(mark(x2)), from(s(mark(x2))))), MARK(x0))
   A__SEL(s(x0), cons(x1, from(from(z0)))) -> c3(A__SEL(mark(x0), a__from(a__from(mark(z0)))), MARK(x0))
   A__SEL(s(x0), cons(x1, from(sel(z0, z1)))) -> c3(A__SEL(mark(x0), a__from(a__sel(mark(z0), mark(z1)))), MARK(x0))
   A__SEL(s(x0), cons(x1, from(cons(z0, z1)))) -> c3(A__SEL(mark(x0), a__from(cons(mark(z0), z1))), MARK(x0))
   A__SEL(s(x0), cons(x1, from(s(z0)))) -> c3(A__SEL(mark(x0), a__from(s(mark(z0)))), MARK(x0))
   A__SEL(s(x0), cons(x1, from(0))) -> c3(A__SEL(mark(x0), a__from(0)), MARK(x0))
   A__SEL(s(from(z0)), cons(x1, from(x2))) -> c3(A__SEL(a__from(mark(z0)), a__from(mark(x2))), MARK(from(z0)))
   A__SEL(s(sel(z0, z1)), cons(x1, from(x2))) -> c3(A__SEL(a__sel(mark(z0), mark(z1)), a__from(mark(x2))), MARK(sel(z0, z1)))
   A__SEL(s(s(z0)), cons(x1, from(x2))) -> c3(A__SEL(s(mark(z0)), a__from(mark(x2))), MARK(s(z0)))
   A__SEL(s(x0), cons(x1, from(x2))) -> c3(MARK(x0))
   A__SEL(s(cons(z0, z1)), cons(x1, from(x2))) -> c3(MARK(cons(z0, z1)))
   A__SEL(s(0), cons(x1, from(x2))) -> c3(A__SEL(0, a__from(mark(x2))))
   A__SEL(s(x0), cons(x1, sel(x2, from(z0)))) -> c3(A__SEL(mark(x0), a__sel(mark(x2), a__from(mark(z0)))), MARK(x0))
   A__SEL(s(x0), cons(x1, sel(x2, sel(z0, z1)))) -> c3(A__SEL(mark(x0), a__sel(mark(x2), a__sel(mark(z0), mark(z1)))), MARK(x0))
   A__SEL(s(x0), cons(x1, sel(x2, cons(z0, z1)))) -> c3(A__SEL(mark(x0), a__sel(mark(x2), cons(mark(z0), z1))), MARK(x0))
   A__SEL(s(x0), cons(x1, sel(x2, s(z0)))) -> c3(A__SEL(mark(x0), a__sel(mark(x2), s(mark(z0)))), MARK(x0))
   A__SEL(s(x0), cons(x1, sel(x2, 0))) -> c3(A__SEL(mark(x0), a__sel(mark(x2), 0)), MARK(x0))
   A__SEL(s(x0), cons(x1, sel(from(z0), x3))) -> c3(A__SEL(mark(x0), a__sel(a__from(mark(z0)), mark(x3))), MARK(x0))
   A__SEL(s(x0), cons(x1, sel(sel(z0, z1), x3))) -> c3(A__SEL(mark(x0), a__sel(a__sel(mark(z0), mark(z1)), mark(x3))), MARK(x0))
   A__SEL(s(x0), cons(x1, sel(cons(z0, z1), x3))) -> c3(A__SEL(mark(x0), a__sel(cons(mark(z0), z1), mark(x3))), MARK(x0))
   A__SEL(s(x0), cons(x1, sel(s(z0), x3))) -> c3(A__SEL(mark(x0), a__sel(s(mark(z0)), mark(x3))), MARK(x0))
   A__SEL(s(x0), cons(x1, sel(0, x3))) -> c3(A__SEL(mark(x0), a__sel(0, mark(x3))), MARK(x0))
   A__SEL(s(from(z0)), cons(x1, sel(x2, x3))) -> c3(A__SEL(a__from(mark(z0)), a__sel(mark(x2), mark(x3))), MARK(from(z0)))
   A__SEL(s(sel(z0, z1)), cons(x1, sel(x2, x3))) -> c3(A__SEL(a__sel(mark(z0), mark(z1)), a__sel(mark(x2), mark(x3))), MARK(sel(z0, z1)))
   A__SEL(s(s(z0)), cons(x1, sel(x2, x3))) -> c3(A__SEL(s(mark(z0)), a__sel(mark(x2), mark(x3))), MARK(s(z0)))
   A__SEL(s(x0), cons(x1, sel(x2, x3))) -> c3(MARK(x0))
   A__SEL(s(cons(z0, z1)), cons(x1, sel(x2, x3))) -> c3(MARK(cons(z0, z1)))
   A__SEL(s(0), cons(x1, sel(x2, x3))) -> c3(A__SEL(0, a__sel(mark(x2), mark(x3))))
   A__SEL(s(x0), cons(x1, cons(from(z0), x3))) -> c3(A__SEL(mark(x0), cons(a__from(mark(z0)), x3)), MARK(x0))
   A__SEL(s(x0), cons(x1, cons(sel(z0, z1), x3))) -> c3(A__SEL(mark(x0), cons(a__sel(mark(z0), mark(z1)), x3)), MARK(x0))
   A__SEL(s(x0), cons(x1, cons(cons(z0, z1), x3))) -> c3(A__SEL(mark(x0), cons(cons(mark(z0), z1), x3)), MARK(x0))
   A__SEL(s(x0), cons(x1, cons(s(z0), x3))) -> c3(A__SEL(mark(x0), cons(s(mark(z0)), x3)), MARK(x0))
   A__SEL(s(x0), cons(x1, cons(0, x3))) -> c3(A__SEL(mark(x0), cons(0, x3)), MARK(x0))
   A__SEL(s(from(z0)), cons(x1, cons(x2, x3))) -> c3(A__SEL(a__from(mark(z0)), cons(mark(x2), x3)), MARK(from(z0)))
   A__SEL(s(sel(z0, z1)), cons(x1, cons(x2, x3))) -> c3(A__SEL(a__sel(mark(z0), mark(z1)), cons(mark(x2), x3)), MARK(sel(z0, z1)))
   A__SEL(s(s(z0)), cons(x1, cons(x2, x3))) -> c3(A__SEL(s(mark(z0)), cons(mark(x2), x3)), MARK(s(z0)))
   A__SEL(s(cons(z0, z1)), cons(x1, cons(x2, x3))) -> c3(MARK(cons(z0, z1)))
   A__SEL(s(0), cons(x1, cons(x2, x3))) -> c3(A__SEL(0, cons(mark(x2), x3)))
   A__SEL(s(from(from(z0))), cons(x1, x2)) -> c3(A__SEL(a__from(a__from(mark(z0))), mark(x2)), MARK(from(from(z0))))
   A__SEL(s(from(sel(z0, z1))), cons(x1, x2)) -> c3(A__SEL(a__from(a__sel(mark(z0), mark(z1))), mark(x2)), MARK(from(sel(z0, z1))))
   A__SEL(s(from(cons(z0, z1))), cons(x1, x2)) -> c3(A__SEL(a__from(cons(mark(z0), z1)), mark(x2)), MARK(from(cons(z0, z1))))
   A__SEL(s(from(s(z0))), cons(x1, x2)) -> c3(A__SEL(a__from(s(mark(z0))), mark(x2)), MARK(from(s(z0))))
   A__SEL(s(from(0)), cons(x1, x2)) -> c3(A__SEL(a__from(0), mark(x2)), MARK(from(0)))
   A__SEL(s(from(x0)), cons(x1, x2)) -> c3(MARK(from(x0)))
   A__SEL(s(from(x0)), cons(x1, s(z0))) -> c3(MARK(from(x0)))
   A__SEL(s(from(x0)), cons(x1, 0)) -> c3(MARK(from(x0)))
   A__SEL(s(sel(x0, from(z0))), cons(x2, x3)) -> c3(A__SEL(a__sel(mark(x0), a__from(mark(z0))), mark(x3)), MARK(sel(x0, from(z0))))
   A__SEL(s(sel(x0, sel(z0, z1))), cons(x2, x3)) -> c3(A__SEL(a__sel(mark(x0), a__sel(mark(z0), mark(z1))), mark(x3)), MARK(sel(x0, sel(z0, z1))))
   A__SEL(s(sel(x0, cons(z0, z1))), cons(x2, x3)) -> c3(A__SEL(a__sel(mark(x0), cons(mark(z0), z1)), mark(x3)), MARK(sel(x0, cons(z0, z1))))
   A__SEL(s(sel(x0, s(z0))), cons(x2, x3)) -> c3(A__SEL(a__sel(mark(x0), s(mark(z0))), mark(x3)), MARK(sel(x0, s(z0))))
   A__SEL(s(sel(x0, 0)), cons(x2, x3)) -> c3(A__SEL(a__sel(mark(x0), 0), mark(x3)), MARK(sel(x0, 0)))
   A__SEL(s(sel(from(z0), x1)), cons(x2, x3)) -> c3(A__SEL(a__sel(a__from(mark(z0)), mark(x1)), mark(x3)), MARK(sel(from(z0), x1)))
   A__SEL(s(sel(sel(z0, z1), x1)), cons(x2, x3)) -> c3(A__SEL(a__sel(a__sel(mark(z0), mark(z1)), mark(x1)), mark(x3)), MARK(sel(sel(z0, z1), x1)))
   A__SEL(s(sel(cons(z0, z1), x1)), cons(x2, x3)) -> c3(A__SEL(a__sel(cons(mark(z0), z1), mark(x1)), mark(x3)), MARK(sel(cons(z0, z1), x1)))
   A__SEL(s(sel(s(z0), x1)), cons(x2, x3)) -> c3(A__SEL(a__sel(s(mark(z0)), mark(x1)), mark(x3)), MARK(sel(s(z0), x1)))
   A__SEL(s(sel(0, x1)), cons(x2, x3)) -> c3(A__SEL(a__sel(0, mark(x1)), mark(x3)), MARK(sel(0, x1)))
   A__SEL(s(sel(x0, x1)), cons(x2, s(z0))) -> c3(MARK(sel(x0, x1)))
   A__SEL(s(sel(x0, x1)), cons(x2, 0)) -> c3(MARK(sel(x0, x1)))
   A__SEL(s(sel(x0, x1)), cons(x2, x3)) -> c3(MARK(sel(x0, x1)))
   A__SEL(s(s(from(z0))), cons(x1, x2)) -> c3(A__SEL(s(a__from(mark(z0))), mark(x2)), MARK(s(from(z0))))
   A__SEL(s(s(sel(z0, z1))), cons(x1, x2)) -> c3(A__SEL(s(a__sel(mark(z0), mark(z1))), mark(x2)), MARK(s(sel(z0, z1))))
   A__SEL(s(s(cons(z0, z1))), cons(x1, x2)) -> c3(A__SEL(s(cons(mark(z0), z1)), mark(x2)), MARK(s(cons(z0, z1))))
   A__SEL(s(s(s(z0))), cons(x1, x2)) -> c3(A__SEL(s(s(mark(z0))), mark(x2)), MARK(s(s(z0))))
   A__SEL(s(s(0)), cons(x1, x2)) -> c3(A__SEL(s(0), mark(x2)), MARK(s(0)))
   A__SEL(s(s(x0)), cons(x1, x2)) -> c3(MARK(s(x0)))
   A__SEL(s(s(x0)), cons(x1, s(z0))) -> c3(MARK(s(x0)))
   A__SEL(s(s(x0)), cons(x1, 0)) -> c3(MARK(s(x0)))
   A__SEL(s(x0), cons(x1, from(x2))) -> c4(A__SEL(mark(x0), cons(mark(mark(x2)), from(s(mark(x2))))), MARK(from(x2)))
   A__SEL(s(x0), cons(x1, from(from(z0)))) -> c4(A__SEL(mark(x0), a__from(a__from(mark(z0)))), MARK(from(from(z0))))
   A__SEL(s(x0), cons(x1, from(sel(z0, z1)))) -> c4(A__SEL(mark(x0), a__from(a__sel(mark(z0), mark(z1)))), MARK(from(sel(z0, z1))))
   A__SEL(s(x0), cons(x1, from(cons(z0, z1)))) -> c4(A__SEL(mark(x0), a__from(cons(mark(z0), z1))), MARK(from(cons(z0, z1))))
   A__SEL(s(x0), cons(x1, from(s(z0)))) -> c4(A__SEL(mark(x0), a__from(s(mark(z0)))), MARK(from(s(z0))))
   A__SEL(s(x0), cons(x1, from(0))) -> c4(A__SEL(mark(x0), a__from(0)), MARK(from(0)))
   A__SEL(s(from(z0)), cons(x1, from(x2))) -> c4(A__SEL(a__from(mark(z0)), a__from(mark(x2))), MARK(from(x2)))
   A__SEL(s(sel(z0, z1)), cons(x1, from(x2))) -> c4(A__SEL(a__sel(mark(z0), mark(z1)), a__from(mark(x2))), MARK(from(x2)))
   A__SEL(s(s(z0)), cons(x1, from(x2))) -> c4(A__SEL(s(mark(z0)), a__from(mark(x2))), MARK(from(x2)))
   A__SEL(s(0), cons(x1, from(x2))) -> c4(A__SEL(0, a__from(mark(x2))), MARK(from(x2)))
   A__SEL(s(x0), cons(x1, from(x2))) -> c4(MARK(from(x2)))
   A__SEL(s(cons(z0, z1)), cons(x1, from(x2))) -> c4(MARK(from(x2)))
   A__SEL(s(x0), cons(x1, sel(x2, from(z0)))) -> c4(A__SEL(mark(x0), a__sel(mark(x2), a__from(mark(z0)))), MARK(sel(x2, from(z0))))
   A__SEL(s(x0), cons(x1, sel(x2, sel(z0, z1)))) -> c4(A__SEL(mark(x0), a__sel(mark(x2), a__sel(mark(z0), mark(z1)))), MARK(sel(x2, sel(z0, z1))))
   A__SEL(s(x0), cons(x1, sel(x2, cons(z0, z1)))) -> c4(A__SEL(mark(x0), a__sel(mark(x2), cons(mark(z0), z1))), MARK(sel(x2, cons(z0, z1))))
   A__SEL(s(x0), cons(x1, sel(x2, s(z0)))) -> c4(A__SEL(mark(x0), a__sel(mark(x2), s(mark(z0)))), MARK(sel(x2, s(z0))))
   A__SEL(s(x0), cons(x1, sel(x2, 0))) -> c4(A__SEL(mark(x0), a__sel(mark(x2), 0)), MARK(sel(x2, 0)))
   A__SEL(s(x0), cons(x1, sel(from(z0), x3))) -> c4(A__SEL(mark(x0), a__sel(a__from(mark(z0)), mark(x3))), MARK(sel(from(z0), x3)))
   A__SEL(s(x0), cons(x1, sel(sel(z0, z1), x3))) -> c4(A__SEL(mark(x0), a__sel(a__sel(mark(z0), mark(z1)), mark(x3))), MARK(sel(sel(z0, z1), x3)))
   A__SEL(s(x0), cons(x1, sel(cons(z0, z1), x3))) -> c4(A__SEL(mark(x0), a__sel(cons(mark(z0), z1), mark(x3))), MARK(sel(cons(z0, z1), x3)))
   A__SEL(s(x0), cons(x1, sel(s(z0), x3))) -> c4(A__SEL(mark(x0), a__sel(s(mark(z0)), mark(x3))), MARK(sel(s(z0), x3)))
   A__SEL(s(x0), cons(x1, sel(0, x3))) -> c4(A__SEL(mark(x0), a__sel(0, mark(x3))), MARK(sel(0, x3)))
   A__SEL(s(from(z0)), cons(x1, sel(x2, x3))) -> c4(A__SEL(a__from(mark(z0)), a__sel(mark(x2), mark(x3))), MARK(sel(x2, x3)))
   A__SEL(s(sel(z0, z1)), cons(x1, sel(x2, x3))) -> c4(A__SEL(a__sel(mark(z0), mark(z1)), a__sel(mark(x2), mark(x3))), MARK(sel(x2, x3)))
   A__SEL(s(s(z0)), cons(x1, sel(x2, x3))) -> c4(A__SEL(s(mark(z0)), a__sel(mark(x2), mark(x3))), MARK(sel(x2, x3)))
   A__SEL(s(0), cons(x1, sel(x2, x3))) -> c4(A__SEL(0, a__sel(mark(x2), mark(x3))), MARK(sel(x2, x3)))
   A__SEL(s(x0), cons(x1, sel(x2, x3))) -> c4(MARK(sel(x2, x3)))
   A__SEL(s(cons(z0, z1)), cons(x1, sel(x2, x3))) -> c4(MARK(sel(x2, x3)))
   A__SEL(s(x0), cons(x1, cons(from(z0), x3))) -> c4(A__SEL(mark(x0), cons(a__from(mark(z0)), x3)), MARK(cons(from(z0), x3)))
   A__SEL(s(x0), cons(x1, cons(sel(z0, z1), x3))) -> c4(A__SEL(mark(x0), cons(a__sel(mark(z0), mark(z1)), x3)), MARK(cons(sel(z0, z1), x3)))
   A__SEL(s(x0), cons(x1, cons(cons(z0, z1), x3))) -> c4(A__SEL(mark(x0), cons(cons(mark(z0), z1), x3)), MARK(cons(cons(z0, z1), x3)))
   A__SEL(s(x0), cons(x1, cons(s(z0), x3))) -> c4(A__SEL(mark(x0), cons(s(mark(z0)), x3)), MARK(cons(s(z0), x3)))
   A__SEL(s(x0), cons(x1, cons(0, x3))) -> c4(A__SEL(mark(x0), cons(0, x3)), MARK(cons(0, x3)))
   A__SEL(s(from(z0)), cons(x1, cons(x2, x3))) -> c4(A__SEL(a__from(mark(z0)), cons(mark(x2), x3)), MARK(cons(x2, x3)))
   A__SEL(s(sel(z0, z1)), cons(x1, cons(x2, x3))) -> c4(A__SEL(a__sel(mark(z0), mark(z1)), cons(mark(x2), x3)), MARK(cons(x2, x3)))
   A__SEL(s(s(z0)), cons(x1, cons(x2, x3))) -> c4(A__SEL(s(mark(z0)), cons(mark(x2), x3)), MARK(cons(x2, x3)))
   A__SEL(s(0), cons(x1, cons(x2, x3))) -> c4(A__SEL(0, cons(mark(x2), x3)), MARK(cons(x2, x3)))
   A__SEL(s(x0), cons(x1, cons(x2, x3))) -> c4(MARK(cons(x2, x3)))
   A__SEL(s(cons(z0, z1)), cons(x1, cons(x2, x3))) -> c4(MARK(cons(x2, x3)))
K tuples:none
Defined Rule Symbols:   a__from_1, a__sel_2, mark_1

Defined Pair Symbols:   A__FROM_1, A__SEL_2, MARK_1

Compound Symbols:   c_1, c2_1, c6_2, c9_1, c10_1, c3_1, c4_2, c4_1, c7_2, c7_1, c8_2, c8_1, c3_2


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

(117) CdtNarrowingProof (BOTH BOUNDS(ID, ID))
Use narrowing to replace A__SEL(s(from(z0)), cons(x1, x2)) -> c4(A__SEL(a__from(mark(z0)), mark(x2)), MARK(x2)) by 
   A__SEL(s(from(x0)), cons(x1, from(z0))) -> c4(A__SEL(a__from(mark(x0)), a__from(mark(z0))), MARK(from(z0)))
   A__SEL(s(from(x0)), cons(x1, sel(z0, z1))) -> c4(A__SEL(a__from(mark(x0)), a__sel(mark(z0), mark(z1))), MARK(sel(z0, z1)))
   A__SEL(s(from(x0)), cons(x1, cons(z0, z1))) -> c4(A__SEL(a__from(mark(x0)), cons(mark(z0), z1)), MARK(cons(z0, z1)))
   A__SEL(s(from(x0)), cons(x1, s(z0))) -> c4(A__SEL(a__from(mark(x0)), s(mark(z0))), MARK(s(z0)))
   A__SEL(s(from(x0)), cons(x1, 0)) -> c4(A__SEL(a__from(mark(x0)), 0), MARK(0))
   A__SEL(s(from(x0)), cons(x1, x2)) -> c4(A__SEL(cons(mark(mark(x0)), from(s(mark(x0)))), mark(x2)), MARK(x2))
   A__SEL(s(from(x0)), cons(x1, x2)) -> c4(A__SEL(from(mark(x0)), mark(x2)), MARK(x2))
   A__SEL(s(from(from(z0))), cons(x1, x2)) -> c4(A__SEL(a__from(a__from(mark(z0))), mark(x2)), MARK(x2))
   A__SEL(s(from(sel(z0, z1))), cons(x1, x2)) -> c4(A__SEL(a__from(a__sel(mark(z0), mark(z1))), mark(x2)), MARK(x2))
   A__SEL(s(from(cons(z0, z1))), cons(x1, x2)) -> c4(A__SEL(a__from(cons(mark(z0), z1)), mark(x2)), MARK(x2))
   A__SEL(s(from(s(z0))), cons(x1, x2)) -> c4(A__SEL(a__from(s(mark(z0))), mark(x2)), MARK(x2))
   A__SEL(s(from(0)), cons(x1, x2)) -> c4(A__SEL(a__from(0), mark(x2)), MARK(x2))

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

(118)
Obligation:
Complexity Dependency Tuples Problem

Rules:
   a__from(z0) -> cons(mark(z0), from(s(z0)))
   a__from(z0) -> from(z0)
   a__sel(0, cons(z0, z1)) -> mark(z0)
   a__sel(s(z0), cons(z1, z2)) -> a__sel(mark(z0), mark(z2))
   a__sel(z0, z1) -> sel(z0, z1)
   mark(from(z0)) -> a__from(mark(z0))
   mark(sel(z0, z1)) -> a__sel(mark(z0), mark(z1))
   mark(cons(z0, z1)) -> cons(mark(z0), z1)
   mark(s(z0)) -> s(mark(z0))
   mark(0) -> 0
Tuples:
   A__FROM(z0) -> c(MARK(z0))
   A__SEL(0, cons(z0, z1)) -> c2(MARK(z0))
   MARK(from(z0)) -> c6(A__FROM(mark(z0)), MARK(z0))
   MARK(cons(z0, z1)) -> c9(MARK(z0))
   MARK(s(z0)) -> c10(MARK(z0))
   A__SEL(s(x0), cons(x1, s(z0))) -> c3(MARK(x0))
   A__SEL(s(x0), cons(x1, 0)) -> c3(MARK(x0))
   A__SEL(s(cons(z0, z1)), cons(x1, x2)) -> c3(MARK(cons(z0, z1)))
   A__SEL(s(sel(z0, z1)), cons(x1, x2)) -> c4(A__SEL(a__sel(mark(z0), mark(z1)), mark(x2)), MARK(x2))
   A__SEL(s(s(z0)), cons(x1, x2)) -> c4(A__SEL(s(mark(z0)), mark(x2)), MARK(x2))
   A__SEL(s(0), cons(x1, x2)) -> c4(A__SEL(0, mark(x2)), MARK(x2))
   A__SEL(s(x0), cons(x1, s(z0))) -> c4(MARK(s(z0)))
   A__SEL(s(cons(z0, z1)), cons(x1, x2)) -> c4(MARK(x2))
   MARK(sel(x0, from(z0))) -> c7(A__SEL(mark(x0), a__from(mark(z0))), MARK(x0))
   MARK(sel(x0, sel(z0, z1))) -> c7(A__SEL(mark(x0), a__sel(mark(z0), mark(z1))), MARK(x0))
   MARK(sel(x0, cons(z0, z1))) -> c7(A__SEL(mark(x0), cons(mark(z0), z1)), MARK(x0))
   MARK(sel(from(z0), x1)) -> c7(A__SEL(a__from(mark(z0)), mark(x1)), MARK(from(z0)))
   MARK(sel(sel(z0, z1), x1)) -> c7(A__SEL(a__sel(mark(z0), mark(z1)), mark(x1)), MARK(sel(z0, z1)))
   MARK(sel(s(z0), x1)) -> c7(A__SEL(s(mark(z0)), mark(x1)), MARK(s(z0)))
   MARK(sel(x0, s(z0))) -> c7(MARK(x0))
   MARK(sel(x0, 0)) -> c7(MARK(x0))
   MARK(sel(cons(z0, z1), x1)) -> c7(MARK(cons(z0, z1)))
   MARK(sel(0, x1)) -> c7(A__SEL(0, mark(x1)))
   MARK(sel(x0, from(z0))) -> c8(A__SEL(mark(x0), a__from(mark(z0))), MARK(from(z0)))
   MARK(sel(x0, sel(z0, z1))) -> c8(A__SEL(mark(x0), a__sel(mark(z0), mark(z1))), MARK(sel(z0, z1)))
   MARK(sel(x0, cons(z0, z1))) -> c8(A__SEL(mark(x0), cons(mark(z0), z1)), MARK(cons(z0, z1)))
   MARK(sel(from(z0), x1)) -> c8(A__SEL(a__from(mark(z0)), mark(x1)), MARK(x1))
   MARK(sel(sel(z0, z1), x1)) -> c8(A__SEL(a__sel(mark(z0), mark(z1)), mark(x1)), MARK(x1))
   MARK(sel(s(z0), x1)) -> c8(A__SEL(s(mark(z0)), mark(x1)), MARK(x1))
   MARK(sel(0, x1)) -> c8(A__SEL(0, mark(x1)), MARK(x1))
   MARK(sel(x0, s(z0))) -> c8(MARK(s(z0)))
   MARK(sel(cons(z0, z1), x1)) -> c8(MARK(x1))
   A__SEL(s(x0), cons(x1, from(x2))) -> c3(A__SEL(mark(x0), cons(mark(mark(x2)), from(s(mark(x2))))), MARK(x0))
   A__SEL(s(x0), cons(x1, from(from(z0)))) -> c3(A__SEL(mark(x0), a__from(a__from(mark(z0)))), MARK(x0))
   A__SEL(s(x0), cons(x1, from(sel(z0, z1)))) -> c3(A__SEL(mark(x0), a__from(a__sel(mark(z0), mark(z1)))), MARK(x0))
   A__SEL(s(x0), cons(x1, from(cons(z0, z1)))) -> c3(A__SEL(mark(x0), a__from(cons(mark(z0), z1))), MARK(x0))
   A__SEL(s(x0), cons(x1, from(s(z0)))) -> c3(A__SEL(mark(x0), a__from(s(mark(z0)))), MARK(x0))
   A__SEL(s(x0), cons(x1, from(0))) -> c3(A__SEL(mark(x0), a__from(0)), MARK(x0))
   A__SEL(s(from(z0)), cons(x1, from(x2))) -> c3(A__SEL(a__from(mark(z0)), a__from(mark(x2))), MARK(from(z0)))
   A__SEL(s(sel(z0, z1)), cons(x1, from(x2))) -> c3(A__SEL(a__sel(mark(z0), mark(z1)), a__from(mark(x2))), MARK(sel(z0, z1)))
   A__SEL(s(s(z0)), cons(x1, from(x2))) -> c3(A__SEL(s(mark(z0)), a__from(mark(x2))), MARK(s(z0)))
   A__SEL(s(x0), cons(x1, from(x2))) -> c3(MARK(x0))
   A__SEL(s(cons(z0, z1)), cons(x1, from(x2))) -> c3(MARK(cons(z0, z1)))
   A__SEL(s(0), cons(x1, from(x2))) -> c3(A__SEL(0, a__from(mark(x2))))
   A__SEL(s(x0), cons(x1, sel(x2, from(z0)))) -> c3(A__SEL(mark(x0), a__sel(mark(x2), a__from(mark(z0)))), MARK(x0))
   A__SEL(s(x0), cons(x1, sel(x2, sel(z0, z1)))) -> c3(A__SEL(mark(x0), a__sel(mark(x2), a__sel(mark(z0), mark(z1)))), MARK(x0))
   A__SEL(s(x0), cons(x1, sel(x2, cons(z0, z1)))) -> c3(A__SEL(mark(x0), a__sel(mark(x2), cons(mark(z0), z1))), MARK(x0))
   A__SEL(s(x0), cons(x1, sel(x2, s(z0)))) -> c3(A__SEL(mark(x0), a__sel(mark(x2), s(mark(z0)))), MARK(x0))
   A__SEL(s(x0), cons(x1, sel(x2, 0))) -> c3(A__SEL(mark(x0), a__sel(mark(x2), 0)), MARK(x0))
   A__SEL(s(x0), cons(x1, sel(from(z0), x3))) -> c3(A__SEL(mark(x0), a__sel(a__from(mark(z0)), mark(x3))), MARK(x0))
   A__SEL(s(x0), cons(x1, sel(sel(z0, z1), x3))) -> c3(A__SEL(mark(x0), a__sel(a__sel(mark(z0), mark(z1)), mark(x3))), MARK(x0))
   A__SEL(s(x0), cons(x1, sel(cons(z0, z1), x3))) -> c3(A__SEL(mark(x0), a__sel(cons(mark(z0), z1), mark(x3))), MARK(x0))
   A__SEL(s(x0), cons(x1, sel(s(z0), x3))) -> c3(A__SEL(mark(x0), a__sel(s(mark(z0)), mark(x3))), MARK(x0))
   A__SEL(s(x0), cons(x1, sel(0, x3))) -> c3(A__SEL(mark(x0), a__sel(0, mark(x3))), MARK(x0))
   A__SEL(s(from(z0)), cons(x1, sel(x2, x3))) -> c3(A__SEL(a__from(mark(z0)), a__sel(mark(x2), mark(x3))), MARK(from(z0)))
   A__SEL(s(sel(z0, z1)), cons(x1, sel(x2, x3))) -> c3(A__SEL(a__sel(mark(z0), mark(z1)), a__sel(mark(x2), mark(x3))), MARK(sel(z0, z1)))
   A__SEL(s(s(z0)), cons(x1, sel(x2, x3))) -> c3(A__SEL(s(mark(z0)), a__sel(mark(x2), mark(x3))), MARK(s(z0)))
   A__SEL(s(x0), cons(x1, sel(x2, x3))) -> c3(MARK(x0))
   A__SEL(s(cons(z0, z1)), cons(x1, sel(x2, x3))) -> c3(MARK(cons(z0, z1)))
   A__SEL(s(0), cons(x1, sel(x2, x3))) -> c3(A__SEL(0, a__sel(mark(x2), mark(x3))))
   A__SEL(s(x0), cons(x1, cons(from(z0), x3))) -> c3(A__SEL(mark(x0), cons(a__from(mark(z0)), x3)), MARK(x0))
   A__SEL(s(x0), cons(x1, cons(sel(z0, z1), x3))) -> c3(A__SEL(mark(x0), cons(a__sel(mark(z0), mark(z1)), x3)), MARK(x0))
   A__SEL(s(x0), cons(x1, cons(cons(z0, z1), x3))) -> c3(A__SEL(mark(x0), cons(cons(mark(z0), z1), x3)), MARK(x0))
   A__SEL(s(x0), cons(x1, cons(s(z0), x3))) -> c3(A__SEL(mark(x0), cons(s(mark(z0)), x3)), MARK(x0))
   A__SEL(s(x0), cons(x1, cons(0, x3))) -> c3(A__SEL(mark(x0), cons(0, x3)), MARK(x0))
   A__SEL(s(from(z0)), cons(x1, cons(x2, x3))) -> c3(A__SEL(a__from(mark(z0)), cons(mark(x2), x3)), MARK(from(z0)))
   A__SEL(s(sel(z0, z1)), cons(x1, cons(x2, x3))) -> c3(A__SEL(a__sel(mark(z0), mark(z1)), cons(mark(x2), x3)), MARK(sel(z0, z1)))
   A__SEL(s(s(z0)), cons(x1, cons(x2, x3))) -> c3(A__SEL(s(mark(z0)), cons(mark(x2), x3)), MARK(s(z0)))
   A__SEL(s(cons(z0, z1)), cons(x1, cons(x2, x3))) -> c3(MARK(cons(z0, z1)))
   A__SEL(s(0), cons(x1, cons(x2, x3))) -> c3(A__SEL(0, cons(mark(x2), x3)))
   A__SEL(s(from(from(z0))), cons(x1, x2)) -> c3(A__SEL(a__from(a__from(mark(z0))), mark(x2)), MARK(from(from(z0))))
   A__SEL(s(from(sel(z0, z1))), cons(x1, x2)) -> c3(A__SEL(a__from(a__sel(mark(z0), mark(z1))), mark(x2)), MARK(from(sel(z0, z1))))
   A__SEL(s(from(cons(z0, z1))), cons(x1, x2)) -> c3(A__SEL(a__from(cons(mark(z0), z1)), mark(x2)), MARK(from(cons(z0, z1))))
   A__SEL(s(from(s(z0))), cons(x1, x2)) -> c3(A__SEL(a__from(s(mark(z0))), mark(x2)), MARK(from(s(z0))))
   A__SEL(s(from(0)), cons(x1, x2)) -> c3(A__SEL(a__from(0), mark(x2)), MARK(from(0)))
   A__SEL(s(from(x0)), cons(x1, x2)) -> c3(MARK(from(x0)))
   A__SEL(s(from(x0)), cons(x1, s(z0))) -> c3(MARK(from(x0)))
   A__SEL(s(from(x0)), cons(x1, 0)) -> c3(MARK(from(x0)))
   A__SEL(s(sel(x0, from(z0))), cons(x2, x3)) -> c3(A__SEL(a__sel(mark(x0), a__from(mark(z0))), mark(x3)), MARK(sel(x0, from(z0))))
   A__SEL(s(sel(x0, sel(z0, z1))), cons(x2, x3)) -> c3(A__SEL(a__sel(mark(x0), a__sel(mark(z0), mark(z1))), mark(x3)), MARK(sel(x0, sel(z0, z1))))
   A__SEL(s(sel(x0, cons(z0, z1))), cons(x2, x3)) -> c3(A__SEL(a__sel(mark(x0), cons(mark(z0), z1)), mark(x3)), MARK(sel(x0, cons(z0, z1))))
   A__SEL(s(sel(x0, s(z0))), cons(x2, x3)) -> c3(A__SEL(a__sel(mark(x0), s(mark(z0))), mark(x3)), MARK(sel(x0, s(z0))))
   A__SEL(s(sel(x0, 0)), cons(x2, x3)) -> c3(A__SEL(a__sel(mark(x0), 0), mark(x3)), MARK(sel(x0, 0)))
   A__SEL(s(sel(from(z0), x1)), cons(x2, x3)) -> c3(A__SEL(a__sel(a__from(mark(z0)), mark(x1)), mark(x3)), MARK(sel(from(z0), x1)))
   A__SEL(s(sel(sel(z0, z1), x1)), cons(x2, x3)) -> c3(A__SEL(a__sel(a__sel(mark(z0), mark(z1)), mark(x1)), mark(x3)), MARK(sel(sel(z0, z1), x1)))
   A__SEL(s(sel(cons(z0, z1), x1)), cons(x2, x3)) -> c3(A__SEL(a__sel(cons(mark(z0), z1), mark(x1)), mark(x3)), MARK(sel(cons(z0, z1), x1)))
   A__SEL(s(sel(s(z0), x1)), cons(x2, x3)) -> c3(A__SEL(a__sel(s(mark(z0)), mark(x1)), mark(x3)), MARK(sel(s(z0), x1)))
   A__SEL(s(sel(0, x1)), cons(x2, x3)) -> c3(A__SEL(a__sel(0, mark(x1)), mark(x3)), MARK(sel(0, x1)))
   A__SEL(s(sel(x0, x1)), cons(x2, s(z0))) -> c3(MARK(sel(x0, x1)))
   A__SEL(s(sel(x0, x1)), cons(x2, 0)) -> c3(MARK(sel(x0, x1)))
   A__SEL(s(sel(x0, x1)), cons(x2, x3)) -> c3(MARK(sel(x0, x1)))
   A__SEL(s(s(from(z0))), cons(x1, x2)) -> c3(A__SEL(s(a__from(mark(z0))), mark(x2)), MARK(s(from(z0))))
   A__SEL(s(s(sel(z0, z1))), cons(x1, x2)) -> c3(A__SEL(s(a__sel(mark(z0), mark(z1))), mark(x2)), MARK(s(sel(z0, z1))))
   A__SEL(s(s(cons(z0, z1))), cons(x1, x2)) -> c3(A__SEL(s(cons(mark(z0), z1)), mark(x2)), MARK(s(cons(z0, z1))))
   A__SEL(s(s(s(z0))), cons(x1, x2)) -> c3(A__SEL(s(s(mark(z0))), mark(x2)), MARK(s(s(z0))))
   A__SEL(s(s(0)), cons(x1, x2)) -> c3(A__SEL(s(0), mark(x2)), MARK(s(0)))
   A__SEL(s(s(x0)), cons(x1, x2)) -> c3(MARK(s(x0)))
   A__SEL(s(s(x0)), cons(x1, s(z0))) -> c3(MARK(s(x0)))
   A__SEL(s(s(x0)), cons(x1, 0)) -> c3(MARK(s(x0)))
   A__SEL(s(x0), cons(x1, from(x2))) -> c4(A__SEL(mark(x0), cons(mark(mark(x2)), from(s(mark(x2))))), MARK(from(x2)))
   A__SEL(s(x0), cons(x1, from(from(z0)))) -> c4(A__SEL(mark(x0), a__from(a__from(mark(z0)))), MARK(from(from(z0))))
   A__SEL(s(x0), cons(x1, from(sel(z0, z1)))) -> c4(A__SEL(mark(x0), a__from(a__sel(mark(z0), mark(z1)))), MARK(from(sel(z0, z1))))
   A__SEL(s(x0), cons(x1, from(cons(z0, z1)))) -> c4(A__SEL(mark(x0), a__from(cons(mark(z0), z1))), MARK(from(cons(z0, z1))))
   A__SEL(s(x0), cons(x1, from(s(z0)))) -> c4(A__SEL(mark(x0), a__from(s(mark(z0)))), MARK(from(s(z0))))
   A__SEL(s(x0), cons(x1, from(0))) -> c4(A__SEL(mark(x0), a__from(0)), MARK(from(0)))
   A__SEL(s(from(z0)), cons(x1, from(x2))) -> c4(A__SEL(a__from(mark(z0)), a__from(mark(x2))), MARK(from(x2)))
   A__SEL(s(sel(z0, z1)), cons(x1, from(x2))) -> c4(A__SEL(a__sel(mark(z0), mark(z1)), a__from(mark(x2))), MARK(from(x2)))
   A__SEL(s(s(z0)), cons(x1, from(x2))) -> c4(A__SEL(s(mark(z0)), a__from(mark(x2))), MARK(from(x2)))
   A__SEL(s(0), cons(x1, from(x2))) -> c4(A__SEL(0, a__from(mark(x2))), MARK(from(x2)))
   A__SEL(s(x0), cons(x1, from(x2))) -> c4(MARK(from(x2)))
   A__SEL(s(cons(z0, z1)), cons(x1, from(x2))) -> c4(MARK(from(x2)))
   A__SEL(s(x0), cons(x1, sel(x2, from(z0)))) -> c4(A__SEL(mark(x0), a__sel(mark(x2), a__from(mark(z0)))), MARK(sel(x2, from(z0))))
   A__SEL(s(x0), cons(x1, sel(x2, sel(z0, z1)))) -> c4(A__SEL(mark(x0), a__sel(mark(x2), a__sel(mark(z0), mark(z1)))), MARK(sel(x2, sel(z0, z1))))
   A__SEL(s(x0), cons(x1, sel(x2, cons(z0, z1)))) -> c4(A__SEL(mark(x0), a__sel(mark(x2), cons(mark(z0), z1))), MARK(sel(x2, cons(z0, z1))))
   A__SEL(s(x0), cons(x1, sel(x2, s(z0)))) -> c4(A__SEL(mark(x0), a__sel(mark(x2), s(mark(z0)))), MARK(sel(x2, s(z0))))
   A__SEL(s(x0), cons(x1, sel(x2, 0))) -> c4(A__SEL(mark(x0), a__sel(mark(x2), 0)), MARK(sel(x2, 0)))
   A__SEL(s(x0), cons(x1, sel(from(z0), x3))) -> c4(A__SEL(mark(x0), a__sel(a__from(mark(z0)), mark(x3))), MARK(sel(from(z0), x3)))
   A__SEL(s(x0), cons(x1, sel(sel(z0, z1), x3))) -> c4(A__SEL(mark(x0), a__sel(a__sel(mark(z0), mark(z1)), mark(x3))), MARK(sel(sel(z0, z1), x3)))
   A__SEL(s(x0), cons(x1, sel(cons(z0, z1), x3))) -> c4(A__SEL(mark(x0), a__sel(cons(mark(z0), z1), mark(x3))), MARK(sel(cons(z0, z1), x3)))
   A__SEL(s(x0), cons(x1, sel(s(z0), x3))) -> c4(A__SEL(mark(x0), a__sel(s(mark(z0)), mark(x3))), MARK(sel(s(z0), x3)))
   A__SEL(s(x0), cons(x1, sel(0, x3))) -> c4(A__SEL(mark(x0), a__sel(0, mark(x3))), MARK(sel(0, x3)))
   A__SEL(s(from(z0)), cons(x1, sel(x2, x3))) -> c4(A__SEL(a__from(mark(z0)), a__sel(mark(x2), mark(x3))), MARK(sel(x2, x3)))
   A__SEL(s(sel(z0, z1)), cons(x1, sel(x2, x3))) -> c4(A__SEL(a__sel(mark(z0), mark(z1)), a__sel(mark(x2), mark(x3))), MARK(sel(x2, x3)))
   A__SEL(s(s(z0)), cons(x1, sel(x2, x3))) -> c4(A__SEL(s(mark(z0)), a__sel(mark(x2), mark(x3))), MARK(sel(x2, x3)))
   A__SEL(s(0), cons(x1, sel(x2, x3))) -> c4(A__SEL(0, a__sel(mark(x2), mark(x3))), MARK(sel(x2, x3)))
   A__SEL(s(x0), cons(x1, sel(x2, x3))) -> c4(MARK(sel(x2, x3)))
   A__SEL(s(cons(z0, z1)), cons(x1, sel(x2, x3))) -> c4(MARK(sel(x2, x3)))
   A__SEL(s(x0), cons(x1, cons(from(z0), x3))) -> c4(A__SEL(mark(x0), cons(a__from(mark(z0)), x3)), MARK(cons(from(z0), x3)))
   A__SEL(s(x0), cons(x1, cons(sel(z0, z1), x3))) -> c4(A__SEL(mark(x0), cons(a__sel(mark(z0), mark(z1)), x3)), MARK(cons(sel(z0, z1), x3)))
   A__SEL(s(x0), cons(x1, cons(cons(z0, z1), x3))) -> c4(A__SEL(mark(x0), cons(cons(mark(z0), z1), x3)), MARK(cons(cons(z0, z1), x3)))
   A__SEL(s(x0), cons(x1, cons(s(z0), x3))) -> c4(A__SEL(mark(x0), cons(s(mark(z0)), x3)), MARK(cons(s(z0), x3)))
   A__SEL(s(x0), cons(x1, cons(0, x3))) -> c4(A__SEL(mark(x0), cons(0, x3)), MARK(cons(0, x3)))
   A__SEL(s(from(z0)), cons(x1, cons(x2, x3))) -> c4(A__SEL(a__from(mark(z0)), cons(mark(x2), x3)), MARK(cons(x2, x3)))
   A__SEL(s(sel(z0, z1)), cons(x1, cons(x2, x3))) -> c4(A__SEL(a__sel(mark(z0), mark(z1)), cons(mark(x2), x3)), MARK(cons(x2, x3)))
   A__SEL(s(s(z0)), cons(x1, cons(x2, x3))) -> c4(A__SEL(s(mark(z0)), cons(mark(x2), x3)), MARK(cons(x2, x3)))
   A__SEL(s(0), cons(x1, cons(x2, x3))) -> c4(A__SEL(0, cons(mark(x2), x3)), MARK(cons(x2, x3)))
   A__SEL(s(x0), cons(x1, cons(x2, x3))) -> c4(MARK(cons(x2, x3)))
   A__SEL(s(cons(z0, z1)), cons(x1, cons(x2, x3))) -> c4(MARK(cons(x2, x3)))
   A__SEL(s(from(x0)), cons(x1, s(z0))) -> c4(A__SEL(a__from(mark(x0)), s(mark(z0))), MARK(s(z0)))
   A__SEL(s(from(x0)), cons(x1, 0)) -> c4(A__SEL(a__from(mark(x0)), 0), MARK(0))
   A__SEL(s(from(x0)), cons(x1, x2)) -> c4(A__SEL(cons(mark(mark(x0)), from(s(mark(x0)))), mark(x2)), MARK(x2))
   A__SEL(s(from(x0)), cons(x1, x2)) -> c4(A__SEL(from(mark(x0)), mark(x2)), MARK(x2))
   A__SEL(s(from(from(z0))), cons(x1, x2)) -> c4(A__SEL(a__from(a__from(mark(z0))), mark(x2)), MARK(x2))
   A__SEL(s(from(sel(z0, z1))), cons(x1, x2)) -> c4(A__SEL(a__from(a__sel(mark(z0), mark(z1))), mark(x2)), MARK(x2))
   A__SEL(s(from(cons(z0, z1))), cons(x1, x2)) -> c4(A__SEL(a__from(cons(mark(z0), z1)), mark(x2)), MARK(x2))
   A__SEL(s(from(s(z0))), cons(x1, x2)) -> c4(A__SEL(a__from(s(mark(z0))), mark(x2)), MARK(x2))
   A__SEL(s(from(0)), cons(x1, x2)) -> c4(A__SEL(a__from(0), mark(x2)), MARK(x2))
S tuples:
   A__FROM(z0) -> c(MARK(z0))
   A__SEL(0, cons(z0, z1)) -> c2(MARK(z0))
   MARK(from(z0)) -> c6(A__FROM(mark(z0)), MARK(z0))
   MARK(cons(z0, z1)) -> c9(MARK(z0))
   MARK(s(z0)) -> c10(MARK(z0))
   A__SEL(s(x0), cons(x1, s(z0))) -> c3(MARK(x0))
   A__SEL(s(x0), cons(x1, 0)) -> c3(MARK(x0))
   A__SEL(s(cons(z0, z1)), cons(x1, x2)) -> c3(MARK(cons(z0, z1)))
   A__SEL(s(sel(z0, z1)), cons(x1, x2)) -> c4(A__SEL(a__sel(mark(z0), mark(z1)), mark(x2)), MARK(x2))
   A__SEL(s(s(z0)), cons(x1, x2)) -> c4(A__SEL(s(mark(z0)), mark(x2)), MARK(x2))
   A__SEL(s(0), cons(x1, x2)) -> c4(A__SEL(0, mark(x2)), MARK(x2))
   A__SEL(s(x0), cons(x1, s(z0))) -> c4(MARK(s(z0)))
   A__SEL(s(cons(z0, z1)), cons(x1, x2)) -> c4(MARK(x2))
   MARK(sel(x0, from(z0))) -> c7(A__SEL(mark(x0), a__from(mark(z0))), MARK(x0))
   MARK(sel(x0, sel(z0, z1))) -> c7(A__SEL(mark(x0), a__sel(mark(z0), mark(z1))), MARK(x0))
   MARK(sel(x0, cons(z0, z1))) -> c7(A__SEL(mark(x0), cons(mark(z0), z1)), MARK(x0))
   MARK(sel(from(z0), x1)) -> c7(A__SEL(a__from(mark(z0)), mark(x1)), MARK(from(z0)))
   MARK(sel(sel(z0, z1), x1)) -> c7(A__SEL(a__sel(mark(z0), mark(z1)), mark(x1)), MARK(sel(z0, z1)))
   MARK(sel(s(z0), x1)) -> c7(A__SEL(s(mark(z0)), mark(x1)), MARK(s(z0)))
   MARK(sel(x0, s(z0))) -> c7(MARK(x0))
   MARK(sel(x0, 0)) -> c7(MARK(x0))
   MARK(sel(cons(z0, z1), x1)) -> c7(MARK(cons(z0, z1)))
   MARK(sel(0, x1)) -> c7(A__SEL(0, mark(x1)))
   MARK(sel(x0, from(z0))) -> c8(A__SEL(mark(x0), a__from(mark(z0))), MARK(from(z0)))
   MARK(sel(x0, sel(z0, z1))) -> c8(A__SEL(mark(x0), a__sel(mark(z0), mark(z1))), MARK(sel(z0, z1)))
   MARK(sel(x0, cons(z0, z1))) -> c8(A__SEL(mark(x0), cons(mark(z0), z1)), MARK(cons(z0, z1)))
   MARK(sel(from(z0), x1)) -> c8(A__SEL(a__from(mark(z0)), mark(x1)), MARK(x1))
   MARK(sel(sel(z0, z1), x1)) -> c8(A__SEL(a__sel(mark(z0), mark(z1)), mark(x1)), MARK(x1))
   MARK(sel(s(z0), x1)) -> c8(A__SEL(s(mark(z0)), mark(x1)), MARK(x1))
   MARK(sel(0, x1)) -> c8(A__SEL(0, mark(x1)), MARK(x1))
   MARK(sel(x0, s(z0))) -> c8(MARK(s(z0)))
   MARK(sel(cons(z0, z1), x1)) -> c8(MARK(x1))
   A__SEL(s(x0), cons(x1, from(x2))) -> c3(A__SEL(mark(x0), cons(mark(mark(x2)), from(s(mark(x2))))), MARK(x0))
   A__SEL(s(x0), cons(x1, from(from(z0)))) -> c3(A__SEL(mark(x0), a__from(a__from(mark(z0)))), MARK(x0))
   A__SEL(s(x0), cons(x1, from(sel(z0, z1)))) -> c3(A__SEL(mark(x0), a__from(a__sel(mark(z0), mark(z1)))), MARK(x0))
   A__SEL(s(x0), cons(x1, from(cons(z0, z1)))) -> c3(A__SEL(mark(x0), a__from(cons(mark(z0), z1))), MARK(x0))
   A__SEL(s(x0), cons(x1, from(s(z0)))) -> c3(A__SEL(mark(x0), a__from(s(mark(z0)))), MARK(x0))
   A__SEL(s(x0), cons(x1, from(0))) -> c3(A__SEL(mark(x0), a__from(0)), MARK(x0))
   A__SEL(s(from(z0)), cons(x1, from(x2))) -> c3(A__SEL(a__from(mark(z0)), a__from(mark(x2))), MARK(from(z0)))
   A__SEL(s(sel(z0, z1)), cons(x1, from(x2))) -> c3(A__SEL(a__sel(mark(z0), mark(z1)), a__from(mark(x2))), MARK(sel(z0, z1)))
   A__SEL(s(s(z0)), cons(x1, from(x2))) -> c3(A__SEL(s(mark(z0)), a__from(mark(x2))), MARK(s(z0)))
   A__SEL(s(x0), cons(x1, from(x2))) -> c3(MARK(x0))
   A__SEL(s(cons(z0, z1)), cons(x1, from(x2))) -> c3(MARK(cons(z0, z1)))
   A__SEL(s(0), cons(x1, from(x2))) -> c3(A__SEL(0, a__from(mark(x2))))
   A__SEL(s(x0), cons(x1, sel(x2, from(z0)))) -> c3(A__SEL(mark(x0), a__sel(mark(x2), a__from(mark(z0)))), MARK(x0))
   A__SEL(s(x0), cons(x1, sel(x2, sel(z0, z1)))) -> c3(A__SEL(mark(x0), a__sel(mark(x2), a__sel(mark(z0), mark(z1)))), MARK(x0))
   A__SEL(s(x0), cons(x1, sel(x2, cons(z0, z1)))) -> c3(A__SEL(mark(x0), a__sel(mark(x2), cons(mark(z0), z1))), MARK(x0))
   A__SEL(s(x0), cons(x1, sel(x2, s(z0)))) -> c3(A__SEL(mark(x0), a__sel(mark(x2), s(mark(z0)))), MARK(x0))
   A__SEL(s(x0), cons(x1, sel(x2, 0))) -> c3(A__SEL(mark(x0), a__sel(mark(x2), 0)), MARK(x0))
   A__SEL(s(x0), cons(x1, sel(from(z0), x3))) -> c3(A__SEL(mark(x0), a__sel(a__from(mark(z0)), mark(x3))), MARK(x0))
   A__SEL(s(x0), cons(x1, sel(sel(z0, z1), x3))) -> c3(A__SEL(mark(x0), a__sel(a__sel(mark(z0), mark(z1)), mark(x3))), MARK(x0))
   A__SEL(s(x0), cons(x1, sel(cons(z0, z1), x3))) -> c3(A__SEL(mark(x0), a__sel(cons(mark(z0), z1), mark(x3))), MARK(x0))
   A__SEL(s(x0), cons(x1, sel(s(z0), x3))) -> c3(A__SEL(mark(x0), a__sel(s(mark(z0)), mark(x3))), MARK(x0))
   A__SEL(s(x0), cons(x1, sel(0, x3))) -> c3(A__SEL(mark(x0), a__sel(0, mark(x3))), MARK(x0))
   A__SEL(s(from(z0)), cons(x1, sel(x2, x3))) -> c3(A__SEL(a__from(mark(z0)), a__sel(mark(x2), mark(x3))), MARK(from(z0)))
   A__SEL(s(sel(z0, z1)), cons(x1, sel(x2, x3))) -> c3(A__SEL(a__sel(mark(z0), mark(z1)), a__sel(mark(x2), mark(x3))), MARK(sel(z0, z1)))
   A__SEL(s(s(z0)), cons(x1, sel(x2, x3))) -> c3(A__SEL(s(mark(z0)), a__sel(mark(x2), mark(x3))), MARK(s(z0)))
   A__SEL(s(x0), cons(x1, sel(x2, x3))) -> c3(MARK(x0))
   A__SEL(s(cons(z0, z1)), cons(x1, sel(x2, x3))) -> c3(MARK(cons(z0, z1)))
   A__SEL(s(0), cons(x1, sel(x2, x3))) -> c3(A__SEL(0, a__sel(mark(x2), mark(x3))))
   A__SEL(s(x0), cons(x1, cons(from(z0), x3))) -> c3(A__SEL(mark(x0), cons(a__from(mark(z0)), x3)), MARK(x0))
   A__SEL(s(x0), cons(x1, cons(sel(z0, z1), x3))) -> c3(A__SEL(mark(x0), cons(a__sel(mark(z0), mark(z1)), x3)), MARK(x0))
   A__SEL(s(x0), cons(x1, cons(cons(z0, z1), x3))) -> c3(A__SEL(mark(x0), cons(cons(mark(z0), z1), x3)), MARK(x0))
   A__SEL(s(x0), cons(x1, cons(s(z0), x3))) -> c3(A__SEL(mark(x0), cons(s(mark(z0)), x3)), MARK(x0))
   A__SEL(s(x0), cons(x1, cons(0, x3))) -> c3(A__SEL(mark(x0), cons(0, x3)), MARK(x0))
   A__SEL(s(from(z0)), cons(x1, cons(x2, x3))) -> c3(A__SEL(a__from(mark(z0)), cons(mark(x2), x3)), MARK(from(z0)))
   A__SEL(s(sel(z0, z1)), cons(x1, cons(x2, x3))) -> c3(A__SEL(a__sel(mark(z0), mark(z1)), cons(mark(x2), x3)), MARK(sel(z0, z1)))
   A__SEL(s(s(z0)), cons(x1, cons(x2, x3))) -> c3(A__SEL(s(mark(z0)), cons(mark(x2), x3)), MARK(s(z0)))
   A__SEL(s(cons(z0, z1)), cons(x1, cons(x2, x3))) -> c3(MARK(cons(z0, z1)))
   A__SEL(s(0), cons(x1, cons(x2, x3))) -> c3(A__SEL(0, cons(mark(x2), x3)))
   A__SEL(s(from(from(z0))), cons(x1, x2)) -> c3(A__SEL(a__from(a__from(mark(z0))), mark(x2)), MARK(from(from(z0))))
   A__SEL(s(from(sel(z0, z1))), cons(x1, x2)) -> c3(A__SEL(a__from(a__sel(mark(z0), mark(z1))), mark(x2)), MARK(from(sel(z0, z1))))
   A__SEL(s(from(cons(z0, z1))), cons(x1, x2)) -> c3(A__SEL(a__from(cons(mark(z0), z1)), mark(x2)), MARK(from(cons(z0, z1))))
   A__SEL(s(from(s(z0))), cons(x1, x2)) -> c3(A__SEL(a__from(s(mark(z0))), mark(x2)), MARK(from(s(z0))))
   A__SEL(s(from(0)), cons(x1, x2)) -> c3(A__SEL(a__from(0), mark(x2)), MARK(from(0)))
   A__SEL(s(from(x0)), cons(x1, x2)) -> c3(MARK(from(x0)))
   A__SEL(s(from(x0)), cons(x1, s(z0))) -> c3(MARK(from(x0)))
   A__SEL(s(from(x0)), cons(x1, 0)) -> c3(MARK(from(x0)))
   A__SEL(s(sel(x0, from(z0))), cons(x2, x3)) -> c3(A__SEL(a__sel(mark(x0), a__from(mark(z0))), mark(x3)), MARK(sel(x0, from(z0))))
   A__SEL(s(sel(x0, sel(z0, z1))), cons(x2, x3)) -> c3(A__SEL(a__sel(mark(x0), a__sel(mark(z0), mark(z1))), mark(x3)), MARK(sel(x0, sel(z0, z1))))
   A__SEL(s(sel(x0, cons(z0, z1))), cons(x2, x3)) -> c3(A__SEL(a__sel(mark(x0), cons(mark(z0), z1)), mark(x3)), MARK(sel(x0, cons(z0, z1))))
   A__SEL(s(sel(x0, s(z0))), cons(x2, x3)) -> c3(A__SEL(a__sel(mark(x0), s(mark(z0))), mark(x3)), MARK(sel(x0, s(z0))))
   A__SEL(s(sel(x0, 0)), cons(x2, x3)) -> c3(A__SEL(a__sel(mark(x0), 0), mark(x3)), MARK(sel(x0, 0)))
   A__SEL(s(sel(from(z0), x1)), cons(x2, x3)) -> c3(A__SEL(a__sel(a__from(mark(z0)), mark(x1)), mark(x3)), MARK(sel(from(z0), x1)))
   A__SEL(s(sel(sel(z0, z1), x1)), cons(x2, x3)) -> c3(A__SEL(a__sel(a__sel(mark(z0), mark(z1)), mark(x1)), mark(x3)), MARK(sel(sel(z0, z1), x1)))
   A__SEL(s(sel(cons(z0, z1), x1)), cons(x2, x3)) -> c3(A__SEL(a__sel(cons(mark(z0), z1), mark(x1)), mark(x3)), MARK(sel(cons(z0, z1), x1)))
   A__SEL(s(sel(s(z0), x1)), cons(x2, x3)) -> c3(A__SEL(a__sel(s(mark(z0)), mark(x1)), mark(x3)), MARK(sel(s(z0), x1)))
   A__SEL(s(sel(0, x1)), cons(x2, x3)) -> c3(A__SEL(a__sel(0, mark(x1)), mark(x3)), MARK(sel(0, x1)))
   A__SEL(s(sel(x0, x1)), cons(x2, s(z0))) -> c3(MARK(sel(x0, x1)))
   A__SEL(s(sel(x0, x1)), cons(x2, 0)) -> c3(MARK(sel(x0, x1)))
   A__SEL(s(sel(x0, x1)), cons(x2, x3)) -> c3(MARK(sel(x0, x1)))
   A__SEL(s(s(from(z0))), cons(x1, x2)) -> c3(A__SEL(s(a__from(mark(z0))), mark(x2)), MARK(s(from(z0))))
   A__SEL(s(s(sel(z0, z1))), cons(x1, x2)) -> c3(A__SEL(s(a__sel(mark(z0), mark(z1))), mark(x2)), MARK(s(sel(z0, z1))))
   A__SEL(s(s(cons(z0, z1))), cons(x1, x2)) -> c3(A__SEL(s(cons(mark(z0), z1)), mark(x2)), MARK(s(cons(z0, z1))))
   A__SEL(s(s(s(z0))), cons(x1, x2)) -> c3(A__SEL(s(s(mark(z0))), mark(x2)), MARK(s(s(z0))))
   A__SEL(s(s(0)), cons(x1, x2)) -> c3(A__SEL(s(0), mark(x2)), MARK(s(0)))
   A__SEL(s(s(x0)), cons(x1, x2)) -> c3(MARK(s(x0)))
   A__SEL(s(s(x0)), cons(x1, s(z0))) -> c3(MARK(s(x0)))
   A__SEL(s(s(x0)), cons(x1, 0)) -> c3(MARK(s(x0)))
   A__SEL(s(x0), cons(x1, from(x2))) -> c4(A__SEL(mark(x0), cons(mark(mark(x2)), from(s(mark(x2))))), MARK(from(x2)))
   A__SEL(s(x0), cons(x1, from(from(z0)))) -> c4(A__SEL(mark(x0), a__from(a__from(mark(z0)))), MARK(from(from(z0))))
   A__SEL(s(x0), cons(x1, from(sel(z0, z1)))) -> c4(A__SEL(mark(x0), a__from(a__sel(mark(z0), mark(z1)))), MARK(from(sel(z0, z1))))
   A__SEL(s(x0), cons(x1, from(cons(z0, z1)))) -> c4(A__SEL(mark(x0), a__from(cons(mark(z0), z1))), MARK(from(cons(z0, z1))))
   A__SEL(s(x0), cons(x1, from(s(z0)))) -> c4(A__SEL(mark(x0), a__from(s(mark(z0)))), MARK(from(s(z0))))
   A__SEL(s(x0), cons(x1, from(0))) -> c4(A__SEL(mark(x0), a__from(0)), MARK(from(0)))
   A__SEL(s(from(z0)), cons(x1, from(x2))) -> c4(A__SEL(a__from(mark(z0)), a__from(mark(x2))), MARK(from(x2)))
   A__SEL(s(sel(z0, z1)), cons(x1, from(x2))) -> c4(A__SEL(a__sel(mark(z0), mark(z1)), a__from(mark(x2))), MARK(from(x2)))
   A__SEL(s(s(z0)), cons(x1, from(x2))) -> c4(A__SEL(s(mark(z0)), a__from(mark(x2))), MARK(from(x2)))
   A__SEL(s(0), cons(x1, from(x2))) -> c4(A__SEL(0, a__from(mark(x2))), MARK(from(x2)))
   A__SEL(s(x0), cons(x1, from(x2))) -> c4(MARK(from(x2)))
   A__SEL(s(cons(z0, z1)), cons(x1, from(x2))) -> c4(MARK(from(x2)))
   A__SEL(s(x0), cons(x1, sel(x2, from(z0)))) -> c4(A__SEL(mark(x0), a__sel(mark(x2), a__from(mark(z0)))), MARK(sel(x2, from(z0))))
   A__SEL(s(x0), cons(x1, sel(x2, sel(z0, z1)))) -> c4(A__SEL(mark(x0), a__sel(mark(x2), a__sel(mark(z0), mark(z1)))), MARK(sel(x2, sel(z0, z1))))
   A__SEL(s(x0), cons(x1, sel(x2, cons(z0, z1)))) -> c4(A__SEL(mark(x0), a__sel(mark(x2), cons(mark(z0), z1))), MARK(sel(x2, cons(z0, z1))))
   A__SEL(s(x0), cons(x1, sel(x2, s(z0)))) -> c4(A__SEL(mark(x0), a__sel(mark(x2), s(mark(z0)))), MARK(sel(x2, s(z0))))
   A__SEL(s(x0), cons(x1, sel(x2, 0))) -> c4(A__SEL(mark(x0), a__sel(mark(x2), 0)), MARK(sel(x2, 0)))
   A__SEL(s(x0), cons(x1, sel(from(z0), x3))) -> c4(A__SEL(mark(x0), a__sel(a__from(mark(z0)), mark(x3))), MARK(sel(from(z0), x3)))
   A__SEL(s(x0), cons(x1, sel(sel(z0, z1), x3))) -> c4(A__SEL(mark(x0), a__sel(a__sel(mark(z0), mark(z1)), mark(x3))), MARK(sel(sel(z0, z1), x3)))
   A__SEL(s(x0), cons(x1, sel(cons(z0, z1), x3))) -> c4(A__SEL(mark(x0), a__sel(cons(mark(z0), z1), mark(x3))), MARK(sel(cons(z0, z1), x3)))
   A__SEL(s(x0), cons(x1, sel(s(z0), x3))) -> c4(A__SEL(mark(x0), a__sel(s(mark(z0)), mark(x3))), MARK(sel(s(z0), x3)))
   A__SEL(s(x0), cons(x1, sel(0, x3))) -> c4(A__SEL(mark(x0), a__sel(0, mark(x3))), MARK(sel(0, x3)))
   A__SEL(s(from(z0)), cons(x1, sel(x2, x3))) -> c4(A__SEL(a__from(mark(z0)), a__sel(mark(x2), mark(x3))), MARK(sel(x2, x3)))
   A__SEL(s(sel(z0, z1)), cons(x1, sel(x2, x3))) -> c4(A__SEL(a__sel(mark(z0), mark(z1)), a__sel(mark(x2), mark(x3))), MARK(sel(x2, x3)))
   A__SEL(s(s(z0)), cons(x1, sel(x2, x3))) -> c4(A__SEL(s(mark(z0)), a__sel(mark(x2), mark(x3))), MARK(sel(x2, x3)))
   A__SEL(s(0), cons(x1, sel(x2, x3))) -> c4(A__SEL(0, a__sel(mark(x2), mark(x3))), MARK(sel(x2, x3)))
   A__SEL(s(x0), cons(x1, sel(x2, x3))) -> c4(MARK(sel(x2, x3)))
   A__SEL(s(cons(z0, z1)), cons(x1, sel(x2, x3))) -> c4(MARK(sel(x2, x3)))
   A__SEL(s(x0), cons(x1, cons(from(z0), x3))) -> c4(A__SEL(mark(x0), cons(a__from(mark(z0)), x3)), MARK(cons(from(z0), x3)))
   A__SEL(s(x0), cons(x1, cons(sel(z0, z1), x3))) -> c4(A__SEL(mark(x0), cons(a__sel(mark(z0), mark(z1)), x3)), MARK(cons(sel(z0, z1), x3)))
   A__SEL(s(x0), cons(x1, cons(cons(z0, z1), x3))) -> c4(A__SEL(mark(x0), cons(cons(mark(z0), z1), x3)), MARK(cons(cons(z0, z1), x3)))
   A__SEL(s(x0), cons(x1, cons(s(z0), x3))) -> c4(A__SEL(mark(x0), cons(s(mark(z0)), x3)), MARK(cons(s(z0), x3)))
   A__SEL(s(x0), cons(x1, cons(0, x3))) -> c4(A__SEL(mark(x0), cons(0, x3)), MARK(cons(0, x3)))
   A__SEL(s(from(z0)), cons(x1, cons(x2, x3))) -> c4(A__SEL(a__from(mark(z0)), cons(mark(x2), x3)), MARK(cons(x2, x3)))
   A__SEL(s(sel(z0, z1)), cons(x1, cons(x2, x3))) -> c4(A__SEL(a__sel(mark(z0), mark(z1)), cons(mark(x2), x3)), MARK(cons(x2, x3)))
   A__SEL(s(s(z0)), cons(x1, cons(x2, x3))) -> c4(A__SEL(s(mark(z0)), cons(mark(x2), x3)), MARK(cons(x2, x3)))
   A__SEL(s(0), cons(x1, cons(x2, x3))) -> c4(A__SEL(0, cons(mark(x2), x3)), MARK(cons(x2, x3)))
   A__SEL(s(x0), cons(x1, cons(x2, x3))) -> c4(MARK(cons(x2, x3)))
   A__SEL(s(cons(z0, z1)), cons(x1, cons(x2, x3))) -> c4(MARK(cons(x2, x3)))
   A__SEL(s(from(x0)), cons(x1, s(z0))) -> c4(A__SEL(a__from(mark(x0)), s(mark(z0))), MARK(s(z0)))
   A__SEL(s(from(x0)), cons(x1, 0)) -> c4(A__SEL(a__from(mark(x0)), 0), MARK(0))
   A__SEL(s(from(x0)), cons(x1, x2)) -> c4(A__SEL(cons(mark(mark(x0)), from(s(mark(x0)))), mark(x2)), MARK(x2))
   A__SEL(s(from(x0)), cons(x1, x2)) -> c4(A__SEL(from(mark(x0)), mark(x2)), MARK(x2))
   A__SEL(s(from(from(z0))), cons(x1, x2)) -> c4(A__SEL(a__from(a__from(mark(z0))), mark(x2)), MARK(x2))
   A__SEL(s(from(sel(z0, z1))), cons(x1, x2)) -> c4(A__SEL(a__from(a__sel(mark(z0), mark(z1))), mark(x2)), MARK(x2))
   A__SEL(s(from(cons(z0, z1))), cons(x1, x2)) -> c4(A__SEL(a__from(cons(mark(z0), z1)), mark(x2)), MARK(x2))
   A__SEL(s(from(s(z0))), cons(x1, x2)) -> c4(A__SEL(a__from(s(mark(z0))), mark(x2)), MARK(x2))
   A__SEL(s(from(0)), cons(x1, x2)) -> c4(A__SEL(a__from(0), mark(x2)), MARK(x2))
K tuples:none
Defined Rule Symbols:   a__from_1, a__sel_2, mark_1

Defined Pair Symbols:   A__FROM_1, A__SEL_2, MARK_1

Compound Symbols:   c_1, c2_1, c6_2, c9_1, c10_1, c3_1, c4_2, c4_1, c7_2, c7_1, c8_2, c8_1, c3_2


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

(119) CdtLeafRemovalProof (BOTH BOUNDS(ID, ID))
Removed 1 trailing nodes:
   A__SEL(s(from(x0)), cons(x1, 0)) -> c4(A__SEL(a__from(mark(x0)), 0), MARK(0))

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

(120)
Obligation:
Complexity Dependency Tuples Problem

Rules:
   a__from(z0) -> cons(mark(z0), from(s(z0)))
   a__from(z0) -> from(z0)
   a__sel(0, cons(z0, z1)) -> mark(z0)
   a__sel(s(z0), cons(z1, z2)) -> a__sel(mark(z0), mark(z2))
   a__sel(z0, z1) -> sel(z0, z1)
   mark(from(z0)) -> a__from(mark(z0))
   mark(sel(z0, z1)) -> a__sel(mark(z0), mark(z1))
   mark(cons(z0, z1)) -> cons(mark(z0), z1)
   mark(s(z0)) -> s(mark(z0))
   mark(0) -> 0
Tuples:
   A__FROM(z0) -> c(MARK(z0))
   A__SEL(0, cons(z0, z1)) -> c2(MARK(z0))
   MARK(from(z0)) -> c6(A__FROM(mark(z0)), MARK(z0))
   MARK(cons(z0, z1)) -> c9(MARK(z0))
   MARK(s(z0)) -> c10(MARK(z0))
   A__SEL(s(x0), cons(x1, s(z0))) -> c3(MARK(x0))
   A__SEL(s(x0), cons(x1, 0)) -> c3(MARK(x0))
   A__SEL(s(cons(z0, z1)), cons(x1, x2)) -> c3(MARK(cons(z0, z1)))
   A__SEL(s(sel(z0, z1)), cons(x1, x2)) -> c4(A__SEL(a__sel(mark(z0), mark(z1)), mark(x2)), MARK(x2))
   A__SEL(s(s(z0)), cons(x1, x2)) -> c4(A__SEL(s(mark(z0)), mark(x2)), MARK(x2))
   A__SEL(s(0), cons(x1, x2)) -> c4(A__SEL(0, mark(x2)), MARK(x2))
   A__SEL(s(x0), cons(x1, s(z0))) -> c4(MARK(s(z0)))
   A__SEL(s(cons(z0, z1)), cons(x1, x2)) -> c4(MARK(x2))
   MARK(sel(x0, from(z0))) -> c7(A__SEL(mark(x0), a__from(mark(z0))), MARK(x0))
   MARK(sel(x0, sel(z0, z1))) -> c7(A__SEL(mark(x0), a__sel(mark(z0), mark(z1))), MARK(x0))
   MARK(sel(x0, cons(z0, z1))) -> c7(A__SEL(mark(x0), cons(mark(z0), z1)), MARK(x0))
   MARK(sel(from(z0), x1)) -> c7(A__SEL(a__from(mark(z0)), mark(x1)), MARK(from(z0)))
   MARK(sel(sel(z0, z1), x1)) -> c7(A__SEL(a__sel(mark(z0), mark(z1)), mark(x1)), MARK(sel(z0, z1)))
   MARK(sel(s(z0), x1)) -> c7(A__SEL(s(mark(z0)), mark(x1)), MARK(s(z0)))
   MARK(sel(x0, s(z0))) -> c7(MARK(x0))
   MARK(sel(x0, 0)) -> c7(MARK(x0))
   MARK(sel(cons(z0, z1), x1)) -> c7(MARK(cons(z0, z1)))
   MARK(sel(0, x1)) -> c7(A__SEL(0, mark(x1)))
   MARK(sel(x0, from(z0))) -> c8(A__SEL(mark(x0), a__from(mark(z0))), MARK(from(z0)))
   MARK(sel(x0, sel(z0, z1))) -> c8(A__SEL(mark(x0), a__sel(mark(z0), mark(z1))), MARK(sel(z0, z1)))
   MARK(sel(x0, cons(z0, z1))) -> c8(A__SEL(mark(x0), cons(mark(z0), z1)), MARK(cons(z0, z1)))
   MARK(sel(from(z0), x1)) -> c8(A__SEL(a__from(mark(z0)), mark(x1)), MARK(x1))
   MARK(sel(sel(z0, z1), x1)) -> c8(A__SEL(a__sel(mark(z0), mark(z1)), mark(x1)), MARK(x1))
   MARK(sel(s(z0), x1)) -> c8(A__SEL(s(mark(z0)), mark(x1)), MARK(x1))
   MARK(sel(0, x1)) -> c8(A__SEL(0, mark(x1)), MARK(x1))
   MARK(sel(x0, s(z0))) -> c8(MARK(s(z0)))
   MARK(sel(cons(z0, z1), x1)) -> c8(MARK(x1))
   A__SEL(s(x0), cons(x1, from(x2))) -> c3(A__SEL(mark(x0), cons(mark(mark(x2)), from(s(mark(x2))))), MARK(x0))
   A__SEL(s(x0), cons(x1, from(from(z0)))) -> c3(A__SEL(mark(x0), a__from(a__from(mark(z0)))), MARK(x0))
   A__SEL(s(x0), cons(x1, from(sel(z0, z1)))) -> c3(A__SEL(mark(x0), a__from(a__sel(mark(z0), mark(z1)))), MARK(x0))
   A__SEL(s(x0), cons(x1, from(cons(z0, z1)))) -> c3(A__SEL(mark(x0), a__from(cons(mark(z0), z1))), MARK(x0))
   A__SEL(s(x0), cons(x1, from(s(z0)))) -> c3(A__SEL(mark(x0), a__from(s(mark(z0)))), MARK(x0))
   A__SEL(s(x0), cons(x1, from(0))) -> c3(A__SEL(mark(x0), a__from(0)), MARK(x0))
   A__SEL(s(from(z0)), cons(x1, from(x2))) -> c3(A__SEL(a__from(mark(z0)), a__from(mark(x2))), MARK(from(z0)))
   A__SEL(s(sel(z0, z1)), cons(x1, from(x2))) -> c3(A__SEL(a__sel(mark(z0), mark(z1)), a__from(mark(x2))), MARK(sel(z0, z1)))
   A__SEL(s(s(z0)), cons(x1, from(x2))) -> c3(A__SEL(s(mark(z0)), a__from(mark(x2))), MARK(s(z0)))
   A__SEL(s(x0), cons(x1, from(x2))) -> c3(MARK(x0))
   A__SEL(s(cons(z0, z1)), cons(x1, from(x2))) -> c3(MARK(cons(z0, z1)))
   A__SEL(s(0), cons(x1, from(x2))) -> c3(A__SEL(0, a__from(mark(x2))))
   A__SEL(s(x0), cons(x1, sel(x2, from(z0)))) -> c3(A__SEL(mark(x0), a__sel(mark(x2), a__from(mark(z0)))), MARK(x0))
   A__SEL(s(x0), cons(x1, sel(x2, sel(z0, z1)))) -> c3(A__SEL(mark(x0), a__sel(mark(x2), a__sel(mark(z0), mark(z1)))), MARK(x0))
   A__SEL(s(x0), cons(x1, sel(x2, cons(z0, z1)))) -> c3(A__SEL(mark(x0), a__sel(mark(x2), cons(mark(z0), z1))), MARK(x0))
   A__SEL(s(x0), cons(x1, sel(x2, s(z0)))) -> c3(A__SEL(mark(x0), a__sel(mark(x2), s(mark(z0)))), MARK(x0))
   A__SEL(s(x0), cons(x1, sel(x2, 0))) -> c3(A__SEL(mark(x0), a__sel(mark(x2), 0)), MARK(x0))
   A__SEL(s(x0), cons(x1, sel(from(z0), x3))) -> c3(A__SEL(mark(x0), a__sel(a__from(mark(z0)), mark(x3))), MARK(x0))
   A__SEL(s(x0), cons(x1, sel(sel(z0, z1), x3))) -> c3(A__SEL(mark(x0), a__sel(a__sel(mark(z0), mark(z1)), mark(x3))), MARK(x0))
   A__SEL(s(x0), cons(x1, sel(cons(z0, z1), x3))) -> c3(A__SEL(mark(x0), a__sel(cons(mark(z0), z1), mark(x3))), MARK(x0))
   A__SEL(s(x0), cons(x1, sel(s(z0), x3))) -> c3(A__SEL(mark(x0), a__sel(s(mark(z0)), mark(x3))), MARK(x0))
   A__SEL(s(x0), cons(x1, sel(0, x3))) -> c3(A__SEL(mark(x0), a__sel(0, mark(x3))), MARK(x0))
   A__SEL(s(from(z0)), cons(x1, sel(x2, x3))) -> c3(A__SEL(a__from(mark(z0)), a__sel(mark(x2), mark(x3))), MARK(from(z0)))
   A__SEL(s(sel(z0, z1)), cons(x1, sel(x2, x3))) -> c3(A__SEL(a__sel(mark(z0), mark(z1)), a__sel(mark(x2), mark(x3))), MARK(sel(z0, z1)))
   A__SEL(s(s(z0)), cons(x1, sel(x2, x3))) -> c3(A__SEL(s(mark(z0)), a__sel(mark(x2), mark(x3))), MARK(s(z0)))
   A__SEL(s(x0), cons(x1, sel(x2, x3))) -> c3(MARK(x0))
   A__SEL(s(cons(z0, z1)), cons(x1, sel(x2, x3))) -> c3(MARK(cons(z0, z1)))
   A__SEL(s(0), cons(x1, sel(x2, x3))) -> c3(A__SEL(0, a__sel(mark(x2), mark(x3))))
   A__SEL(s(x0), cons(x1, cons(from(z0), x3))) -> c3(A__SEL(mark(x0), cons(a__from(mark(z0)), x3)), MARK(x0))
   A__SEL(s(x0), cons(x1, cons(sel(z0, z1), x3))) -> c3(A__SEL(mark(x0), cons(a__sel(mark(z0), mark(z1)), x3)), MARK(x0))
   A__SEL(s(x0), cons(x1, cons(cons(z0, z1), x3))) -> c3(A__SEL(mark(x0), cons(cons(mark(z0), z1), x3)), MARK(x0))
   A__SEL(s(x0), cons(x1, cons(s(z0), x3))) -> c3(A__SEL(mark(x0), cons(s(mark(z0)), x3)), MARK(x0))
   A__SEL(s(x0), cons(x1, cons(0, x3))) -> c3(A__SEL(mark(x0), cons(0, x3)), MARK(x0))
   A__SEL(s(from(z0)), cons(x1, cons(x2, x3))) -> c3(A__SEL(a__from(mark(z0)), cons(mark(x2), x3)), MARK(from(z0)))
   A__SEL(s(sel(z0, z1)), cons(x1, cons(x2, x3))) -> c3(A__SEL(a__sel(mark(z0), mark(z1)), cons(mark(x2), x3)), MARK(sel(z0, z1)))
   A__SEL(s(s(z0)), cons(x1, cons(x2, x3))) -> c3(A__SEL(s(mark(z0)), cons(mark(x2), x3)), MARK(s(z0)))
   A__SEL(s(cons(z0, z1)), cons(x1, cons(x2, x3))) -> c3(MARK(cons(z0, z1)))
   A__SEL(s(0), cons(x1, cons(x2, x3))) -> c3(A__SEL(0, cons(mark(x2), x3)))
   A__SEL(s(from(from(z0))), cons(x1, x2)) -> c3(A__SEL(a__from(a__from(mark(z0))), mark(x2)), MARK(from(from(z0))))
   A__SEL(s(from(sel(z0, z1))), cons(x1, x2)) -> c3(A__SEL(a__from(a__sel(mark(z0), mark(z1))), mark(x2)), MARK(from(sel(z0, z1))))
   A__SEL(s(from(cons(z0, z1))), cons(x1, x2)) -> c3(A__SEL(a__from(cons(mark(z0), z1)), mark(x2)), MARK(from(cons(z0, z1))))
   A__SEL(s(from(s(z0))), cons(x1, x2)) -> c3(A__SEL(a__from(s(mark(z0))), mark(x2)), MARK(from(s(z0))))
   A__SEL(s(from(0)), cons(x1, x2)) -> c3(A__SEL(a__from(0), mark(x2)), MARK(from(0)))
   A__SEL(s(from(x0)), cons(x1, x2)) -> c3(MARK(from(x0)))
   A__SEL(s(from(x0)), cons(x1, s(z0))) -> c3(MARK(from(x0)))
   A__SEL(s(from(x0)), cons(x1, 0)) -> c3(MARK(from(x0)))
   A__SEL(s(sel(x0, from(z0))), cons(x2, x3)) -> c3(A__SEL(a__sel(mark(x0), a__from(mark(z0))), mark(x3)), MARK(sel(x0, from(z0))))
   A__SEL(s(sel(x0, sel(z0, z1))), cons(x2, x3)) -> c3(A__SEL(a__sel(mark(x0), a__sel(mark(z0), mark(z1))), mark(x3)), MARK(sel(x0, sel(z0, z1))))
   A__SEL(s(sel(x0, cons(z0, z1))), cons(x2, x3)) -> c3(A__SEL(a__sel(mark(x0), cons(mark(z0), z1)), mark(x3)), MARK(sel(x0, cons(z0, z1))))
   A__SEL(s(sel(x0, s(z0))), cons(x2, x3)) -> c3(A__SEL(a__sel(mark(x0), s(mark(z0))), mark(x3)), MARK(sel(x0, s(z0))))
   A__SEL(s(sel(x0, 0)), cons(x2, x3)) -> c3(A__SEL(a__sel(mark(x0), 0), mark(x3)), MARK(sel(x0, 0)))
   A__SEL(s(sel(from(z0), x1)), cons(x2, x3)) -> c3(A__SEL(a__sel(a__from(mark(z0)), mark(x1)), mark(x3)), MARK(sel(from(z0), x1)))
   A__SEL(s(sel(sel(z0, z1), x1)), cons(x2, x3)) -> c3(A__SEL(a__sel(a__sel(mark(z0), mark(z1)), mark(x1)), mark(x3)), MARK(sel(sel(z0, z1), x1)))
   A__SEL(s(sel(cons(z0, z1), x1)), cons(x2, x3)) -> c3(A__SEL(a__sel(cons(mark(z0), z1), mark(x1)), mark(x3)), MARK(sel(cons(z0, z1), x1)))
   A__SEL(s(sel(s(z0), x1)), cons(x2, x3)) -> c3(A__SEL(a__sel(s(mark(z0)), mark(x1)), mark(x3)), MARK(sel(s(z0), x1)))
   A__SEL(s(sel(0, x1)), cons(x2, x3)) -> c3(A__SEL(a__sel(0, mark(x1)), mark(x3)), MARK(sel(0, x1)))
   A__SEL(s(sel(x0, x1)), cons(x2, s(z0))) -> c3(MARK(sel(x0, x1)))
   A__SEL(s(sel(x0, x1)), cons(x2, 0)) -> c3(MARK(sel(x0, x1)))
   A__SEL(s(sel(x0, x1)), cons(x2, x3)) -> c3(MARK(sel(x0, x1)))
   A__SEL(s(s(from(z0))), cons(x1, x2)) -> c3(A__SEL(s(a__from(mark(z0))), mark(x2)), MARK(s(from(z0))))
   A__SEL(s(s(sel(z0, z1))), cons(x1, x2)) -> c3(A__SEL(s(a__sel(mark(z0), mark(z1))), mark(x2)), MARK(s(sel(z0, z1))))
   A__SEL(s(s(cons(z0, z1))), cons(x1, x2)) -> c3(A__SEL(s(cons(mark(z0), z1)), mark(x2)), MARK(s(cons(z0, z1))))
   A__SEL(s(s(s(z0))), cons(x1, x2)) -> c3(A__SEL(s(s(mark(z0))), mark(x2)), MARK(s(s(z0))))
   A__SEL(s(s(0)), cons(x1, x2)) -> c3(A__SEL(s(0), mark(x2)), MARK(s(0)))
   A__SEL(s(s(x0)), cons(x1, x2)) -> c3(MARK(s(x0)))
   A__SEL(s(s(x0)), cons(x1, s(z0))) -> c3(MARK(s(x0)))
   A__SEL(s(s(x0)), cons(x1, 0)) -> c3(MARK(s(x0)))
   A__SEL(s(x0), cons(x1, from(x2))) -> c4(A__SEL(mark(x0), cons(mark(mark(x2)), from(s(mark(x2))))), MARK(from(x2)))
   A__SEL(s(x0), cons(x1, from(from(z0)))) -> c4(A__SEL(mark(x0), a__from(a__from(mark(z0)))), MARK(from(from(z0))))
   A__SEL(s(x0), cons(x1, from(sel(z0, z1)))) -> c4(A__SEL(mark(x0), a__from(a__sel(mark(z0), mark(z1)))), MARK(from(sel(z0, z1))))
   A__SEL(s(x0), cons(x1, from(cons(z0, z1)))) -> c4(A__SEL(mark(x0), a__from(cons(mark(z0), z1))), MARK(from(cons(z0, z1))))
   A__SEL(s(x0), cons(x1, from(s(z0)))) -> c4(A__SEL(mark(x0), a__from(s(mark(z0)))), MARK(from(s(z0))))
   A__SEL(s(x0), cons(x1, from(0))) -> c4(A__SEL(mark(x0), a__from(0)), MARK(from(0)))
   A__SEL(s(from(z0)), cons(x1, from(x2))) -> c4(A__SEL(a__from(mark(z0)), a__from(mark(x2))), MARK(from(x2)))
   A__SEL(s(sel(z0, z1)), cons(x1, from(x2))) -> c4(A__SEL(a__sel(mark(z0), mark(z1)), a__from(mark(x2))), MARK(from(x2)))
   A__SEL(s(s(z0)), cons(x1, from(x2))) -> c4(A__SEL(s(mark(z0)), a__from(mark(x2))), MARK(from(x2)))
   A__SEL(s(0), cons(x1, from(x2))) -> c4(A__SEL(0, a__from(mark(x2))), MARK(from(x2)))
   A__SEL(s(x0), cons(x1, from(x2))) -> c4(MARK(from(x2)))
   A__SEL(s(cons(z0, z1)), cons(x1, from(x2))) -> c4(MARK(from(x2)))
   A__SEL(s(x0), cons(x1, sel(x2, from(z0)))) -> c4(A__SEL(mark(x0), a__sel(mark(x2), a__from(mark(z0)))), MARK(sel(x2, from(z0))))
   A__SEL(s(x0), cons(x1, sel(x2, sel(z0, z1)))) -> c4(A__SEL(mark(x0), a__sel(mark(x2), a__sel(mark(z0), mark(z1)))), MARK(sel(x2, sel(z0, z1))))
   A__SEL(s(x0), cons(x1, sel(x2, cons(z0, z1)))) -> c4(A__SEL(mark(x0), a__sel(mark(x2), cons(mark(z0), z1))), MARK(sel(x2, cons(z0, z1))))
   A__SEL(s(x0), cons(x1, sel(x2, s(z0)))) -> c4(A__SEL(mark(x0), a__sel(mark(x2), s(mark(z0)))), MARK(sel(x2, s(z0))))
   A__SEL(s(x0), cons(x1, sel(x2, 0))) -> c4(A__SEL(mark(x0), a__sel(mark(x2), 0)), MARK(sel(x2, 0)))
   A__SEL(s(x0), cons(x1, sel(from(z0), x3))) -> c4(A__SEL(mark(x0), a__sel(a__from(mark(z0)), mark(x3))), MARK(sel(from(z0), x3)))
   A__SEL(s(x0), cons(x1, sel(sel(z0, z1), x3))) -> c4(A__SEL(mark(x0), a__sel(a__sel(mark(z0), mark(z1)), mark(x3))), MARK(sel(sel(z0, z1), x3)))
   A__SEL(s(x0), cons(x1, sel(cons(z0, z1), x3))) -> c4(A__SEL(mark(x0), a__sel(cons(mark(z0), z1), mark(x3))), MARK(sel(cons(z0, z1), x3)))
   A__SEL(s(x0), cons(x1, sel(s(z0), x3))) -> c4(A__SEL(mark(x0), a__sel(s(mark(z0)), mark(x3))), MARK(sel(s(z0), x3)))
   A__SEL(s(x0), cons(x1, sel(0, x3))) -> c4(A__SEL(mark(x0), a__sel(0, mark(x3))), MARK(sel(0, x3)))
   A__SEL(s(from(z0)), cons(x1, sel(x2, x3))) -> c4(A__SEL(a__from(mark(z0)), a__sel(mark(x2), mark(x3))), MARK(sel(x2, x3)))
   A__SEL(s(sel(z0, z1)), cons(x1, sel(x2, x3))) -> c4(A__SEL(a__sel(mark(z0), mark(z1)), a__sel(mark(x2), mark(x3))), MARK(sel(x2, x3)))
   A__SEL(s(s(z0)), cons(x1, sel(x2, x3))) -> c4(A__SEL(s(mark(z0)), a__sel(mark(x2), mark(x3))), MARK(sel(x2, x3)))
   A__SEL(s(0), cons(x1, sel(x2, x3))) -> c4(A__SEL(0, a__sel(mark(x2), mark(x3))), MARK(sel(x2, x3)))
   A__SEL(s(x0), cons(x1, sel(x2, x3))) -> c4(MARK(sel(x2, x3)))
   A__SEL(s(cons(z0, z1)), cons(x1, sel(x2, x3))) -> c4(MARK(sel(x2, x3)))
   A__SEL(s(x0), cons(x1, cons(from(z0), x3))) -> c4(A__SEL(mark(x0), cons(a__from(mark(z0)), x3)), MARK(cons(from(z0), x3)))
   A__SEL(s(x0), cons(x1, cons(sel(z0, z1), x3))) -> c4(A__SEL(mark(x0), cons(a__sel(mark(z0), mark(z1)), x3)), MARK(cons(sel(z0, z1), x3)))
   A__SEL(s(x0), cons(x1, cons(cons(z0, z1), x3))) -> c4(A__SEL(mark(x0), cons(cons(mark(z0), z1), x3)), MARK(cons(cons(z0, z1), x3)))
   A__SEL(s(x0), cons(x1, cons(s(z0), x3))) -> c4(A__SEL(mark(x0), cons(s(mark(z0)), x3)), MARK(cons(s(z0), x3)))
   A__SEL(s(x0), cons(x1, cons(0, x3))) -> c4(A__SEL(mark(x0), cons(0, x3)), MARK(cons(0, x3)))
   A__SEL(s(from(z0)), cons(x1, cons(x2, x3))) -> c4(A__SEL(a__from(mark(z0)), cons(mark(x2), x3)), MARK(cons(x2, x3)))
   A__SEL(s(sel(z0, z1)), cons(x1, cons(x2, x3))) -> c4(A__SEL(a__sel(mark(z0), mark(z1)), cons(mark(x2), x3)), MARK(cons(x2, x3)))
   A__SEL(s(s(z0)), cons(x1, cons(x2, x3))) -> c4(A__SEL(s(mark(z0)), cons(mark(x2), x3)), MARK(cons(x2, x3)))
   A__SEL(s(0), cons(x1, cons(x2, x3))) -> c4(A__SEL(0, cons(mark(x2), x3)), MARK(cons(x2, x3)))
   A__SEL(s(x0), cons(x1, cons(x2, x3))) -> c4(MARK(cons(x2, x3)))
   A__SEL(s(cons(z0, z1)), cons(x1, cons(x2, x3))) -> c4(MARK(cons(x2, x3)))
   A__SEL(s(from(x0)), cons(x1, s(z0))) -> c4(A__SEL(a__from(mark(x0)), s(mark(z0))), MARK(s(z0)))
   A__SEL(s(from(x0)), cons(x1, x2)) -> c4(A__SEL(cons(mark(mark(x0)), from(s(mark(x0)))), mark(x2)), MARK(x2))
   A__SEL(s(from(x0)), cons(x1, x2)) -> c4(A__SEL(from(mark(x0)), mark(x2)), MARK(x2))
   A__SEL(s(from(from(z0))), cons(x1, x2)) -> c4(A__SEL(a__from(a__from(mark(z0))), mark(x2)), MARK(x2))
   A__SEL(s(from(sel(z0, z1))), cons(x1, x2)) -> c4(A__SEL(a__from(a__sel(mark(z0), mark(z1))), mark(x2)), MARK(x2))
   A__SEL(s(from(cons(z0, z1))), cons(x1, x2)) -> c4(A__SEL(a__from(cons(mark(z0), z1)), mark(x2)), MARK(x2))
   A__SEL(s(from(s(z0))), cons(x1, x2)) -> c4(A__SEL(a__from(s(mark(z0))), mark(x2)), MARK(x2))
   A__SEL(s(from(0)), cons(x1, x2)) -> c4(A__SEL(a__from(0), mark(x2)), MARK(x2))
S tuples:
   A__FROM(z0) -> c(MARK(z0))
   A__SEL(0, cons(z0, z1)) -> c2(MARK(z0))
   MARK(from(z0)) -> c6(A__FROM(mark(z0)), MARK(z0))
   MARK(cons(z0, z1)) -> c9(MARK(z0))
   MARK(s(z0)) -> c10(MARK(z0))
   A__SEL(s(x0), cons(x1, s(z0))) -> c3(MARK(x0))
   A__SEL(s(x0), cons(x1, 0)) -> c3(MARK(x0))
   A__SEL(s(cons(z0, z1)), cons(x1, x2)) -> c3(MARK(cons(z0, z1)))
   A__SEL(s(sel(z0, z1)), cons(x1, x2)) -> c4(A__SEL(a__sel(mark(z0), mark(z1)), mark(x2)), MARK(x2))
   A__SEL(s(s(z0)), cons(x1, x2)) -> c4(A__SEL(s(mark(z0)), mark(x2)), MARK(x2))
   A__SEL(s(0), cons(x1, x2)) -> c4(A__SEL(0, mark(x2)), MARK(x2))
   A__SEL(s(x0), cons(x1, s(z0))) -> c4(MARK(s(z0)))
   A__SEL(s(cons(z0, z1)), cons(x1, x2)) -> c4(MARK(x2))
   MARK(sel(x0, from(z0))) -> c7(A__SEL(mark(x0), a__from(mark(z0))), MARK(x0))
   MARK(sel(x0, sel(z0, z1))) -> c7(A__SEL(mark(x0), a__sel(mark(z0), mark(z1))), MARK(x0))
   MARK(sel(x0, cons(z0, z1))) -> c7(A__SEL(mark(x0), cons(mark(z0), z1)), MARK(x0))
   MARK(sel(from(z0), x1)) -> c7(A__SEL(a__from(mark(z0)), mark(x1)), MARK(from(z0)))
   MARK(sel(sel(z0, z1), x1)) -> c7(A__SEL(a__sel(mark(z0), mark(z1)), mark(x1)), MARK(sel(z0, z1)))
   MARK(sel(s(z0), x1)) -> c7(A__SEL(s(mark(z0)), mark(x1)), MARK(s(z0)))
   MARK(sel(x0, s(z0))) -> c7(MARK(x0))
   MARK(sel(x0, 0)) -> c7(MARK(x0))
   MARK(sel(cons(z0, z1), x1)) -> c7(MARK(cons(z0, z1)))
   MARK(sel(0, x1)) -> c7(A__SEL(0, mark(x1)))
   MARK(sel(x0, from(z0))) -> c8(A__SEL(mark(x0), a__from(mark(z0))), MARK(from(z0)))
   MARK(sel(x0, sel(z0, z1))) -> c8(A__SEL(mark(x0), a__sel(mark(z0), mark(z1))), MARK(sel(z0, z1)))
   MARK(sel(x0, cons(z0, z1))) -> c8(A__SEL(mark(x0), cons(mark(z0), z1)), MARK(cons(z0, z1)))
   MARK(sel(from(z0), x1)) -> c8(A__SEL(a__from(mark(z0)), mark(x1)), MARK(x1))
   MARK(sel(sel(z0, z1), x1)) -> c8(A__SEL(a__sel(mark(z0), mark(z1)), mark(x1)), MARK(x1))
   MARK(sel(s(z0), x1)) -> c8(A__SEL(s(mark(z0)), mark(x1)), MARK(x1))
   MARK(sel(0, x1)) -> c8(A__SEL(0, mark(x1)), MARK(x1))
   MARK(sel(x0, s(z0))) -> c8(MARK(s(z0)))
   MARK(sel(cons(z0, z1), x1)) -> c8(MARK(x1))
   A__SEL(s(x0), cons(x1, from(x2))) -> c3(A__SEL(mark(x0), cons(mark(mark(x2)), from(s(mark(x2))))), MARK(x0))
   A__SEL(s(x0), cons(x1, from(from(z0)))) -> c3(A__SEL(mark(x0), a__from(a__from(mark(z0)))), MARK(x0))
   A__SEL(s(x0), cons(x1, from(sel(z0, z1)))) -> c3(A__SEL(mark(x0), a__from(a__sel(mark(z0), mark(z1)))), MARK(x0))
   A__SEL(s(x0), cons(x1, from(cons(z0, z1)))) -> c3(A__SEL(mark(x0), a__from(cons(mark(z0), z1))), MARK(x0))
   A__SEL(s(x0), cons(x1, from(s(z0)))) -> c3(A__SEL(mark(x0), a__from(s(mark(z0)))), MARK(x0))
   A__SEL(s(x0), cons(x1, from(0))) -> c3(A__SEL(mark(x0), a__from(0)), MARK(x0))
   A__SEL(s(from(z0)), cons(x1, from(x2))) -> c3(A__SEL(a__from(mark(z0)), a__from(mark(x2))), MARK(from(z0)))
   A__SEL(s(sel(z0, z1)), cons(x1, from(x2))) -> c3(A__SEL(a__sel(mark(z0), mark(z1)), a__from(mark(x2))), MARK(sel(z0, z1)))
   A__SEL(s(s(z0)), cons(x1, from(x2))) -> c3(A__SEL(s(mark(z0)), a__from(mark(x2))), MARK(s(z0)))
   A__SEL(s(x0), cons(x1, from(x2))) -> c3(MARK(x0))
   A__SEL(s(cons(z0, z1)), cons(x1, from(x2))) -> c3(MARK(cons(z0, z1)))
   A__SEL(s(0), cons(x1, from(x2))) -> c3(A__SEL(0, a__from(mark(x2))))
   A__SEL(s(x0), cons(x1, sel(x2, from(z0)))) -> c3(A__SEL(mark(x0), a__sel(mark(x2), a__from(mark(z0)))), MARK(x0))
   A__SEL(s(x0), cons(x1, sel(x2, sel(z0, z1)))) -> c3(A__SEL(mark(x0), a__sel(mark(x2), a__sel(mark(z0), mark(z1)))), MARK(x0))
   A__SEL(s(x0), cons(x1, sel(x2, cons(z0, z1)))) -> c3(A__SEL(mark(x0), a__sel(mark(x2), cons(mark(z0), z1))), MARK(x0))
   A__SEL(s(x0), cons(x1, sel(x2, s(z0)))) -> c3(A__SEL(mark(x0), a__sel(mark(x2), s(mark(z0)))), MARK(x0))
   A__SEL(s(x0), cons(x1, sel(x2, 0))) -> c3(A__SEL(mark(x0), a__sel(mark(x2), 0)), MARK(x0))
   A__SEL(s(x0), cons(x1, sel(from(z0), x3))) -> c3(A__SEL(mark(x0), a__sel(a__from(mark(z0)), mark(x3))), MARK(x0))
   A__SEL(s(x0), cons(x1, sel(sel(z0, z1), x3))) -> c3(A__SEL(mark(x0), a__sel(a__sel(mark(z0), mark(z1)), mark(x3))), MARK(x0))
   A__SEL(s(x0), cons(x1, sel(cons(z0, z1), x3))) -> c3(A__SEL(mark(x0), a__sel(cons(mark(z0), z1), mark(x3))), MARK(x0))
   A__SEL(s(x0), cons(x1, sel(s(z0), x3))) -> c3(A__SEL(mark(x0), a__sel(s(mark(z0)), mark(x3))), MARK(x0))
   A__SEL(s(x0), cons(x1, sel(0, x3))) -> c3(A__SEL(mark(x0), a__sel(0, mark(x3))), MARK(x0))
   A__SEL(s(from(z0)), cons(x1, sel(x2, x3))) -> c3(A__SEL(a__from(mark(z0)), a__sel(mark(x2), mark(x3))), MARK(from(z0)))
   A__SEL(s(sel(z0, z1)), cons(x1, sel(x2, x3))) -> c3(A__SEL(a__sel(mark(z0), mark(z1)), a__sel(mark(x2), mark(x3))), MARK(sel(z0, z1)))
   A__SEL(s(s(z0)), cons(x1, sel(x2, x3))) -> c3(A__SEL(s(mark(z0)), a__sel(mark(x2), mark(x3))), MARK(s(z0)))
   A__SEL(s(x0), cons(x1, sel(x2, x3))) -> c3(MARK(x0))
   A__SEL(s(cons(z0, z1)), cons(x1, sel(x2, x3))) -> c3(MARK(cons(z0, z1)))
   A__SEL(s(0), cons(x1, sel(x2, x3))) -> c3(A__SEL(0, a__sel(mark(x2), mark(x3))))
   A__SEL(s(x0), cons(x1, cons(from(z0), x3))) -> c3(A__SEL(mark(x0), cons(a__from(mark(z0)), x3)), MARK(x0))
   A__SEL(s(x0), cons(x1, cons(sel(z0, z1), x3))) -> c3(A__SEL(mark(x0), cons(a__sel(mark(z0), mark(z1)), x3)), MARK(x0))
   A__SEL(s(x0), cons(x1, cons(cons(z0, z1), x3))) -> c3(A__SEL(mark(x0), cons(cons(mark(z0), z1), x3)), MARK(x0))
   A__SEL(s(x0), cons(x1, cons(s(z0), x3))) -> c3(A__SEL(mark(x0), cons(s(mark(z0)), x3)), MARK(x0))
   A__SEL(s(x0), cons(x1, cons(0, x3))) -> c3(A__SEL(mark(x0), cons(0, x3)), MARK(x0))
   A__SEL(s(from(z0)), cons(x1, cons(x2, x3))) -> c3(A__SEL(a__from(mark(z0)), cons(mark(x2), x3)), MARK(from(z0)))
   A__SEL(s(sel(z0, z1)), cons(x1, cons(x2, x3))) -> c3(A__SEL(a__sel(mark(z0), mark(z1)), cons(mark(x2), x3)), MARK(sel(z0, z1)))
   A__SEL(s(s(z0)), cons(x1, cons(x2, x3))) -> c3(A__SEL(s(mark(z0)), cons(mark(x2), x3)), MARK(s(z0)))
   A__SEL(s(cons(z0, z1)), cons(x1, cons(x2, x3))) -> c3(MARK(cons(z0, z1)))
   A__SEL(s(0), cons(x1, cons(x2, x3))) -> c3(A__SEL(0, cons(mark(x2), x3)))
   A__SEL(s(from(from(z0))), cons(x1, x2)) -> c3(A__SEL(a__from(a__from(mark(z0))), mark(x2)), MARK(from(from(z0))))
   A__SEL(s(from(sel(z0, z1))), cons(x1, x2)) -> c3(A__SEL(a__from(a__sel(mark(z0), mark(z1))), mark(x2)), MARK(from(sel(z0, z1))))
   A__SEL(s(from(cons(z0, z1))), cons(x1, x2)) -> c3(A__SEL(a__from(cons(mark(z0), z1)), mark(x2)), MARK(from(cons(z0, z1))))
   A__SEL(s(from(s(z0))), cons(x1, x2)) -> c3(A__SEL(a__from(s(mark(z0))), mark(x2)), MARK(from(s(z0))))
   A__SEL(s(from(0)), cons(x1, x2)) -> c3(A__SEL(a__from(0), mark(x2)), MARK(from(0)))
   A__SEL(s(from(x0)), cons(x1, x2)) -> c3(MARK(from(x0)))
   A__SEL(s(from(x0)), cons(x1, s(z0))) -> c3(MARK(from(x0)))
   A__SEL(s(from(x0)), cons(x1, 0)) -> c3(MARK(from(x0)))
   A__SEL(s(sel(x0, from(z0))), cons(x2, x3)) -> c3(A__SEL(a__sel(mark(x0), a__from(mark(z0))), mark(x3)), MARK(sel(x0, from(z0))))
   A__SEL(s(sel(x0, sel(z0, z1))), cons(x2, x3)) -> c3(A__SEL(a__sel(mark(x0), a__sel(mark(z0), mark(z1))), mark(x3)), MARK(sel(x0, sel(z0, z1))))
   A__SEL(s(sel(x0, cons(z0, z1))), cons(x2, x3)) -> c3(A__SEL(a__sel(mark(x0), cons(mark(z0), z1)), mark(x3)), MARK(sel(x0, cons(z0, z1))))
   A__SEL(s(sel(x0, s(z0))), cons(x2, x3)) -> c3(A__SEL(a__sel(mark(x0), s(mark(z0))), mark(x3)), MARK(sel(x0, s(z0))))
   A__SEL(s(sel(x0, 0)), cons(x2, x3)) -> c3(A__SEL(a__sel(mark(x0), 0), mark(x3)), MARK(sel(x0, 0)))
   A__SEL(s(sel(from(z0), x1)), cons(x2, x3)) -> c3(A__SEL(a__sel(a__from(mark(z0)), mark(x1)), mark(x3)), MARK(sel(from(z0), x1)))
   A__SEL(s(sel(sel(z0, z1), x1)), cons(x2, x3)) -> c3(A__SEL(a__sel(a__sel(mark(z0), mark(z1)), mark(x1)), mark(x3)), MARK(sel(sel(z0, z1), x1)))
   A__SEL(s(sel(cons(z0, z1), x1)), cons(x2, x3)) -> c3(A__SEL(a__sel(cons(mark(z0), z1), mark(x1)), mark(x3)), MARK(sel(cons(z0, z1), x1)))
   A__SEL(s(sel(s(z0), x1)), cons(x2, x3)) -> c3(A__SEL(a__sel(s(mark(z0)), mark(x1)), mark(x3)), MARK(sel(s(z0), x1)))
   A__SEL(s(sel(0, x1)), cons(x2, x3)) -> c3(A__SEL(a__sel(0, mark(x1)), mark(x3)), MARK(sel(0, x1)))
   A__SEL(s(sel(x0, x1)), cons(x2, s(z0))) -> c3(MARK(sel(x0, x1)))
   A__SEL(s(sel(x0, x1)), cons(x2, 0)) -> c3(MARK(sel(x0, x1)))
   A__SEL(s(sel(x0, x1)), cons(x2, x3)) -> c3(MARK(sel(x0, x1)))
   A__SEL(s(s(from(z0))), cons(x1, x2)) -> c3(A__SEL(s(a__from(mark(z0))), mark(x2)), MARK(s(from(z0))))
   A__SEL(s(s(sel(z0, z1))), cons(x1, x2)) -> c3(A__SEL(s(a__sel(mark(z0), mark(z1))), mark(x2)), MARK(s(sel(z0, z1))))
   A__SEL(s(s(cons(z0, z1))), cons(x1, x2)) -> c3(A__SEL(s(cons(mark(z0), z1)), mark(x2)), MARK(s(cons(z0, z1))))
   A__SEL(s(s(s(z0))), cons(x1, x2)) -> c3(A__SEL(s(s(mark(z0))), mark(x2)), MARK(s(s(z0))))
   A__SEL(s(s(0)), cons(x1, x2)) -> c3(A__SEL(s(0), mark(x2)), MARK(s(0)))
   A__SEL(s(s(x0)), cons(x1, x2)) -> c3(MARK(s(x0)))
   A__SEL(s(s(x0)), cons(x1, s(z0))) -> c3(MARK(s(x0)))
   A__SEL(s(s(x0)), cons(x1, 0)) -> c3(MARK(s(x0)))
   A__SEL(s(x0), cons(x1, from(x2))) -> c4(A__SEL(mark(x0), cons(mark(mark(x2)), from(s(mark(x2))))), MARK(from(x2)))
   A__SEL(s(x0), cons(x1, from(from(z0)))) -> c4(A__SEL(mark(x0), a__from(a__from(mark(z0)))), MARK(from(from(z0))))
   A__SEL(s(x0), cons(x1, from(sel(z0, z1)))) -> c4(A__SEL(mark(x0), a__from(a__sel(mark(z0), mark(z1)))), MARK(from(sel(z0, z1))))
   A__SEL(s(x0), cons(x1, from(cons(z0, z1)))) -> c4(A__SEL(mark(x0), a__from(cons(mark(z0), z1))), MARK(from(cons(z0, z1))))
   A__SEL(s(x0), cons(x1, from(s(z0)))) -> c4(A__SEL(mark(x0), a__from(s(mark(z0)))), MARK(from(s(z0))))
   A__SEL(s(x0), cons(x1, from(0))) -> c4(A__SEL(mark(x0), a__from(0)), MARK(from(0)))
   A__SEL(s(from(z0)), cons(x1, from(x2))) -> c4(A__SEL(a__from(mark(z0)), a__from(mark(x2))), MARK(from(x2)))
   A__SEL(s(sel(z0, z1)), cons(x1, from(x2))) -> c4(A__SEL(a__sel(mark(z0), mark(z1)), a__from(mark(x2))), MARK(from(x2)))
   A__SEL(s(s(z0)), cons(x1, from(x2))) -> c4(A__SEL(s(mark(z0)), a__from(mark(x2))), MARK(from(x2)))
   A__SEL(s(0), cons(x1, from(x2))) -> c4(A__SEL(0, a__from(mark(x2))), MARK(from(x2)))
   A__SEL(s(x0), cons(x1, from(x2))) -> c4(MARK(from(x2)))
   A__SEL(s(cons(z0, z1)), cons(x1, from(x2))) -> c4(MARK(from(x2)))
   A__SEL(s(x0), cons(x1, sel(x2, from(z0)))) -> c4(A__SEL(mark(x0), a__sel(mark(x2), a__from(mark(z0)))), MARK(sel(x2, from(z0))))
   A__SEL(s(x0), cons(x1, sel(x2, sel(z0, z1)))) -> c4(A__SEL(mark(x0), a__sel(mark(x2), a__sel(mark(z0), mark(z1)))), MARK(sel(x2, sel(z0, z1))))
   A__SEL(s(x0), cons(x1, sel(x2, cons(z0, z1)))) -> c4(A__SEL(mark(x0), a__sel(mark(x2), cons(mark(z0), z1))), MARK(sel(x2, cons(z0, z1))))
   A__SEL(s(x0), cons(x1, sel(x2, s(z0)))) -> c4(A__SEL(mark(x0), a__sel(mark(x2), s(mark(z0)))), MARK(sel(x2, s(z0))))
   A__SEL(s(x0), cons(x1, sel(x2, 0))) -> c4(A__SEL(mark(x0), a__sel(mark(x2), 0)), MARK(sel(x2, 0)))
   A__SEL(s(x0), cons(x1, sel(from(z0), x3))) -> c4(A__SEL(mark(x0), a__sel(a__from(mark(z0)), mark(x3))), MARK(sel(from(z0), x3)))
   A__SEL(s(x0), cons(x1, sel(sel(z0, z1), x3))) -> c4(A__SEL(mark(x0), a__sel(a__sel(mark(z0), mark(z1)), mark(x3))), MARK(sel(sel(z0, z1), x3)))
   A__SEL(s(x0), cons(x1, sel(cons(z0, z1), x3))) -> c4(A__SEL(mark(x0), a__sel(cons(mark(z0), z1), mark(x3))), MARK(sel(cons(z0, z1), x3)))
   A__SEL(s(x0), cons(x1, sel(s(z0), x3))) -> c4(A__SEL(mark(x0), a__sel(s(mark(z0)), mark(x3))), MARK(sel(s(z0), x3)))
   A__SEL(s(x0), cons(x1, sel(0, x3))) -> c4(A__SEL(mark(x0), a__sel(0, mark(x3))), MARK(sel(0, x3)))
   A__SEL(s(from(z0)), cons(x1, sel(x2, x3))) -> c4(A__SEL(a__from(mark(z0)), a__sel(mark(x2), mark(x3))), MARK(sel(x2, x3)))
   A__SEL(s(sel(z0, z1)), cons(x1, sel(x2, x3))) -> c4(A__SEL(a__sel(mark(z0), mark(z1)), a__sel(mark(x2), mark(x3))), MARK(sel(x2, x3)))
   A__SEL(s(s(z0)), cons(x1, sel(x2, x3))) -> c4(A__SEL(s(mark(z0)), a__sel(mark(x2), mark(x3))), MARK(sel(x2, x3)))
   A__SEL(s(0), cons(x1, sel(x2, x3))) -> c4(A__SEL(0, a__sel(mark(x2), mark(x3))), MARK(sel(x2, x3)))
   A__SEL(s(x0), cons(x1, sel(x2, x3))) -> c4(MARK(sel(x2, x3)))
   A__SEL(s(cons(z0, z1)), cons(x1, sel(x2, x3))) -> c4(MARK(sel(x2, x3)))
   A__SEL(s(x0), cons(x1, cons(from(z0), x3))) -> c4(A__SEL(mark(x0), cons(a__from(mark(z0)), x3)), MARK(cons(from(z0), x3)))
   A__SEL(s(x0), cons(x1, cons(sel(z0, z1), x3))) -> c4(A__SEL(mark(x0), cons(a__sel(mark(z0), mark(z1)), x3)), MARK(cons(sel(z0, z1), x3)))
   A__SEL(s(x0), cons(x1, cons(cons(z0, z1), x3))) -> c4(A__SEL(mark(x0), cons(cons(mark(z0), z1), x3)), MARK(cons(cons(z0, z1), x3)))
   A__SEL(s(x0), cons(x1, cons(s(z0), x3))) -> c4(A__SEL(mark(x0), cons(s(mark(z0)), x3)), MARK(cons(s(z0), x3)))
   A__SEL(s(x0), cons(x1, cons(0, x3))) -> c4(A__SEL(mark(x0), cons(0, x3)), MARK(cons(0, x3)))
   A__SEL(s(from(z0)), cons(x1, cons(x2, x3))) -> c4(A__SEL(a__from(mark(z0)), cons(mark(x2), x3)), MARK(cons(x2, x3)))
   A__SEL(s(sel(z0, z1)), cons(x1, cons(x2, x3))) -> c4(A__SEL(a__sel(mark(z0), mark(z1)), cons(mark(x2), x3)), MARK(cons(x2, x3)))
   A__SEL(s(s(z0)), cons(x1, cons(x2, x3))) -> c4(A__SEL(s(mark(z0)), cons(mark(x2), x3)), MARK(cons(x2, x3)))
   A__SEL(s(0), cons(x1, cons(x2, x3))) -> c4(A__SEL(0, cons(mark(x2), x3)), MARK(cons(x2, x3)))
   A__SEL(s(x0), cons(x1, cons(x2, x3))) -> c4(MARK(cons(x2, x3)))
   A__SEL(s(cons(z0, z1)), cons(x1, cons(x2, x3))) -> c4(MARK(cons(x2, x3)))
   A__SEL(s(from(x0)), cons(x1, s(z0))) -> c4(A__SEL(a__from(mark(x0)), s(mark(z0))), MARK(s(z0)))
   A__SEL(s(from(x0)), cons(x1, x2)) -> c4(A__SEL(cons(mark(mark(x0)), from(s(mark(x0)))), mark(x2)), MARK(x2))
   A__SEL(s(from(x0)), cons(x1, x2)) -> c4(A__SEL(from(mark(x0)), mark(x2)), MARK(x2))
   A__SEL(s(from(from(z0))), cons(x1, x2)) -> c4(A__SEL(a__from(a__from(mark(z0))), mark(x2)), MARK(x2))
   A__SEL(s(from(sel(z0, z1))), cons(x1, x2)) -> c4(A__SEL(a__from(a__sel(mark(z0), mark(z1))), mark(x2)), MARK(x2))
   A__SEL(s(from(cons(z0, z1))), cons(x1, x2)) -> c4(A__SEL(a__from(cons(mark(z0), z1)), mark(x2)), MARK(x2))
   A__SEL(s(from(s(z0))), cons(x1, x2)) -> c4(A__SEL(a__from(s(mark(z0))), mark(x2)), MARK(x2))
   A__SEL(s(from(0)), cons(x1, x2)) -> c4(A__SEL(a__from(0), mark(x2)), MARK(x2))
K tuples:none
Defined Rule Symbols:   a__from_1, a__sel_2, mark_1

Defined Pair Symbols:   A__FROM_1, A__SEL_2, MARK_1

Compound Symbols:   c_1, c2_1, c6_2, c9_1, c10_1, c3_1, c4_2, c4_1, c7_2, c7_1, c8_2, c8_1, c3_2


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

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

(122)
Obligation:
Complexity Dependency Tuples Problem

Rules:
   a__from(z0) -> cons(mark(z0), from(s(z0)))
   a__from(z0) -> from(z0)
   a__sel(0, cons(z0, z1)) -> mark(z0)
   a__sel(s(z0), cons(z1, z2)) -> a__sel(mark(z0), mark(z2))
   a__sel(z0, z1) -> sel(z0, z1)
   mark(from(z0)) -> a__from(mark(z0))
   mark(sel(z0, z1)) -> a__sel(mark(z0), mark(z1))
   mark(cons(z0, z1)) -> cons(mark(z0), z1)
   mark(s(z0)) -> s(mark(z0))
   mark(0) -> 0
Tuples:
   A__FROM(z0) -> c(MARK(z0))
   A__SEL(0, cons(z0, z1)) -> c2(MARK(z0))
   MARK(from(z0)) -> c6(A__FROM(mark(z0)), MARK(z0))
   MARK(cons(z0, z1)) -> c9(MARK(z0))
   MARK(s(z0)) -> c10(MARK(z0))
   A__SEL(s(x0), cons(x1, s(z0))) -> c3(MARK(x0))
   A__SEL(s(x0), cons(x1, 0)) -> c3(MARK(x0))
   A__SEL(s(cons(z0, z1)), cons(x1, x2)) -> c3(MARK(cons(z0, z1)))
   A__SEL(s(sel(z0, z1)), cons(x1, x2)) -> c4(A__SEL(a__sel(mark(z0), mark(z1)), mark(x2)), MARK(x2))
   A__SEL(s(s(z0)), cons(x1, x2)) -> c4(A__SEL(s(mark(z0)), mark(x2)), MARK(x2))
   A__SEL(s(0), cons(x1, x2)) -> c4(A__SEL(0, mark(x2)), MARK(x2))
   A__SEL(s(x0), cons(x1, s(z0))) -> c4(MARK(s(z0)))
   A__SEL(s(cons(z0, z1)), cons(x1, x2)) -> c4(MARK(x2))
   MARK(sel(x0, from(z0))) -> c7(A__SEL(mark(x0), a__from(mark(z0))), MARK(x0))
   MARK(sel(x0, sel(z0, z1))) -> c7(A__SEL(mark(x0), a__sel(mark(z0), mark(z1))), MARK(x0))
   MARK(sel(x0, cons(z0, z1))) -> c7(A__SEL(mark(x0), cons(mark(z0), z1)), MARK(x0))
   MARK(sel(from(z0), x1)) -> c7(A__SEL(a__from(mark(z0)), mark(x1)), MARK(from(z0)))
   MARK(sel(sel(z0, z1), x1)) -> c7(A__SEL(a__sel(mark(z0), mark(z1)), mark(x1)), MARK(sel(z0, z1)))
   MARK(sel(s(z0), x1)) -> c7(A__SEL(s(mark(z0)), mark(x1)), MARK(s(z0)))
   MARK(sel(x0, s(z0))) -> c7(MARK(x0))
   MARK(sel(x0, 0)) -> c7(MARK(x0))
   MARK(sel(cons(z0, z1), x1)) -> c7(MARK(cons(z0, z1)))
   MARK(sel(0, x1)) -> c7(A__SEL(0, mark(x1)))
   MARK(sel(x0, from(z0))) -> c8(A__SEL(mark(x0), a__from(mark(z0))), MARK(from(z0)))
   MARK(sel(x0, sel(z0, z1))) -> c8(A__SEL(mark(x0), a__sel(mark(z0), mark(z1))), MARK(sel(z0, z1)))
   MARK(sel(x0, cons(z0, z1))) -> c8(A__SEL(mark(x0), cons(mark(z0), z1)), MARK(cons(z0, z1)))
   MARK(sel(from(z0), x1)) -> c8(A__SEL(a__from(mark(z0)), mark(x1)), MARK(x1))
   MARK(sel(sel(z0, z1), x1)) -> c8(A__SEL(a__sel(mark(z0), mark(z1)), mark(x1)), MARK(x1))
   MARK(sel(s(z0), x1)) -> c8(A__SEL(s(mark(z0)), mark(x1)), MARK(x1))
   MARK(sel(0, x1)) -> c8(A__SEL(0, mark(x1)), MARK(x1))
   MARK(sel(x0, s(z0))) -> c8(MARK(s(z0)))
   MARK(sel(cons(z0, z1), x1)) -> c8(MARK(x1))
   A__SEL(s(x0), cons(x1, from(x2))) -> c3(A__SEL(mark(x0), cons(mark(mark(x2)), from(s(mark(x2))))), MARK(x0))
   A__SEL(s(x0), cons(x1, from(from(z0)))) -> c3(A__SEL(mark(x0), a__from(a__from(mark(z0)))), MARK(x0))
   A__SEL(s(x0), cons(x1, from(sel(z0, z1)))) -> c3(A__SEL(mark(x0), a__from(a__sel(mark(z0), mark(z1)))), MARK(x0))
   A__SEL(s(x0), cons(x1, from(cons(z0, z1)))) -> c3(A__SEL(mark(x0), a__from(cons(mark(z0), z1))), MARK(x0))
   A__SEL(s(x0), cons(x1, from(s(z0)))) -> c3(A__SEL(mark(x0), a__from(s(mark(z0)))), MARK(x0))
   A__SEL(s(x0), cons(x1, from(0))) -> c3(A__SEL(mark(x0), a__from(0)), MARK(x0))
   A__SEL(s(from(z0)), cons(x1, from(x2))) -> c3(A__SEL(a__from(mark(z0)), a__from(mark(x2))), MARK(from(z0)))
   A__SEL(s(sel(z0, z1)), cons(x1, from(x2))) -> c3(A__SEL(a__sel(mark(z0), mark(z1)), a__from(mark(x2))), MARK(sel(z0, z1)))
   A__SEL(s(s(z0)), cons(x1, from(x2))) -> c3(A__SEL(s(mark(z0)), a__from(mark(x2))), MARK(s(z0)))
   A__SEL(s(x0), cons(x1, from(x2))) -> c3(MARK(x0))
   A__SEL(s(cons(z0, z1)), cons(x1, from(x2))) -> c3(MARK(cons(z0, z1)))
   A__SEL(s(0), cons(x1, from(x2))) -> c3(A__SEL(0, a__from(mark(x2))))
   A__SEL(s(x0), cons(x1, sel(x2, from(z0)))) -> c3(A__SEL(mark(x0), a__sel(mark(x2), a__from(mark(z0)))), MARK(x0))
   A__SEL(s(x0), cons(x1, sel(x2, sel(z0, z1)))) -> c3(A__SEL(mark(x0), a__sel(mark(x2), a__sel(mark(z0), mark(z1)))), MARK(x0))
   A__SEL(s(x0), cons(x1, sel(x2, cons(z0, z1)))) -> c3(A__SEL(mark(x0), a__sel(mark(x2), cons(mark(z0), z1))), MARK(x0))
   A__SEL(s(x0), cons(x1, sel(x2, s(z0)))) -> c3(A__SEL(mark(x0), a__sel(mark(x2), s(mark(z0)))), MARK(x0))
   A__SEL(s(x0), cons(x1, sel(x2, 0))) -> c3(A__SEL(mark(x0), a__sel(mark(x2), 0)), MARK(x0))
   A__SEL(s(x0), cons(x1, sel(from(z0), x3))) -> c3(A__SEL(mark(x0), a__sel(a__from(mark(z0)), mark(x3))), MARK(x0))
   A__SEL(s(x0), cons(x1, sel(sel(z0, z1), x3))) -> c3(A__SEL(mark(x0), a__sel(a__sel(mark(z0), mark(z1)), mark(x3))), MARK(x0))
   A__SEL(s(x0), cons(x1, sel(cons(z0, z1), x3))) -> c3(A__SEL(mark(x0), a__sel(cons(mark(z0), z1), mark(x3))), MARK(x0))
   A__SEL(s(x0), cons(x1, sel(s(z0), x3))) -> c3(A__SEL(mark(x0), a__sel(s(mark(z0)), mark(x3))), MARK(x0))
   A__SEL(s(x0), cons(x1, sel(0, x3))) -> c3(A__SEL(mark(x0), a__sel(0, mark(x3))), MARK(x0))
   A__SEL(s(from(z0)), cons(x1, sel(x2, x3))) -> c3(A__SEL(a__from(mark(z0)), a__sel(mark(x2), mark(x3))), MARK(from(z0)))
   A__SEL(s(sel(z0, z1)), cons(x1, sel(x2, x3))) -> c3(A__SEL(a__sel(mark(z0), mark(z1)), a__sel(mark(x2), mark(x3))), MARK(sel(z0, z1)))
   A__SEL(s(s(z0)), cons(x1, sel(x2, x3))) -> c3(A__SEL(s(mark(z0)), a__sel(mark(x2), mark(x3))), MARK(s(z0)))
   A__SEL(s(x0), cons(x1, sel(x2, x3))) -> c3(MARK(x0))
   A__SEL(s(cons(z0, z1)), cons(x1, sel(x2, x3))) -> c3(MARK(cons(z0, z1)))
   A__SEL(s(0), cons(x1, sel(x2, x3))) -> c3(A__SEL(0, a__sel(mark(x2), mark(x3))))
   A__SEL(s(x0), cons(x1, cons(from(z0), x3))) -> c3(A__SEL(mark(x0), cons(a__from(mark(z0)), x3)), MARK(x0))
   A__SEL(s(x0), cons(x1, cons(sel(z0, z1), x3))) -> c3(A__SEL(mark(x0), cons(a__sel(mark(z0), mark(z1)), x3)), MARK(x0))
   A__SEL(s(x0), cons(x1, cons(cons(z0, z1), x3))) -> c3(A__SEL(mark(x0), cons(cons(mark(z0), z1), x3)), MARK(x0))
   A__SEL(s(x0), cons(x1, cons(s(z0), x3))) -> c3(A__SEL(mark(x0), cons(s(mark(z0)), x3)), MARK(x0))
   A__SEL(s(x0), cons(x1, cons(0, x3))) -> c3(A__SEL(mark(x0), cons(0, x3)), MARK(x0))
   A__SEL(s(from(z0)), cons(x1, cons(x2, x3))) -> c3(A__SEL(a__from(mark(z0)), cons(mark(x2), x3)), MARK(from(z0)))
   A__SEL(s(sel(z0, z1)), cons(x1, cons(x2, x3))) -> c3(A__SEL(a__sel(mark(z0), mark(z1)), cons(mark(x2), x3)), MARK(sel(z0, z1)))
   A__SEL(s(s(z0)), cons(x1, cons(x2, x3))) -> c3(A__SEL(s(mark(z0)), cons(mark(x2), x3)), MARK(s(z0)))
   A__SEL(s(cons(z0, z1)), cons(x1, cons(x2, x3))) -> c3(MARK(cons(z0, z1)))
   A__SEL(s(0), cons(x1, cons(x2, x3))) -> c3(A__SEL(0, cons(mark(x2), x3)))
   A__SEL(s(from(from(z0))), cons(x1, x2)) -> c3(A__SEL(a__from(a__from(mark(z0))), mark(x2)), MARK(from(from(z0))))
   A__SEL(s(from(sel(z0, z1))), cons(x1, x2)) -> c3(A__SEL(a__from(a__sel(mark(z0), mark(z1))), mark(x2)), MARK(from(sel(z0, z1))))
   A__SEL(s(from(cons(z0, z1))), cons(x1, x2)) -> c3(A__SEL(a__from(cons(mark(z0), z1)), mark(x2)), MARK(from(cons(z0, z1))))
   A__SEL(s(from(s(z0))), cons(x1, x2)) -> c3(A__SEL(a__from(s(mark(z0))), mark(x2)), MARK(from(s(z0))))
   A__SEL(s(from(0)), cons(x1, x2)) -> c3(A__SEL(a__from(0), mark(x2)), MARK(from(0)))
   A__SEL(s(from(x0)), cons(x1, x2)) -> c3(MARK(from(x0)))
   A__SEL(s(from(x0)), cons(x1, s(z0))) -> c3(MARK(from(x0)))
   A__SEL(s(from(x0)), cons(x1, 0)) -> c3(MARK(from(x0)))
   A__SEL(s(sel(x0, from(z0))), cons(x2, x3)) -> c3(A__SEL(a__sel(mark(x0), a__from(mark(z0))), mark(x3)), MARK(sel(x0, from(z0))))
   A__SEL(s(sel(x0, sel(z0, z1))), cons(x2, x3)) -> c3(A__SEL(a__sel(mark(x0), a__sel(mark(z0), mark(z1))), mark(x3)), MARK(sel(x0, sel(z0, z1))))
   A__SEL(s(sel(x0, cons(z0, z1))), cons(x2, x3)) -> c3(A__SEL(a__sel(mark(x0), cons(mark(z0), z1)), mark(x3)), MARK(sel(x0, cons(z0, z1))))
   A__SEL(s(sel(x0, s(z0))), cons(x2, x3)) -> c3(A__SEL(a__sel(mark(x0), s(mark(z0))), mark(x3)), MARK(sel(x0, s(z0))))
   A__SEL(s(sel(x0, 0)), cons(x2, x3)) -> c3(A__SEL(a__sel(mark(x0), 0), mark(x3)), MARK(sel(x0, 0)))
   A__SEL(s(sel(from(z0), x1)), cons(x2, x3)) -> c3(A__SEL(a__sel(a__from(mark(z0)), mark(x1)), mark(x3)), MARK(sel(from(z0), x1)))
   A__SEL(s(sel(sel(z0, z1), x1)), cons(x2, x3)) -> c3(A__SEL(a__sel(a__sel(mark(z0), mark(z1)), mark(x1)), mark(x3)), MARK(sel(sel(z0, z1), x1)))
   A__SEL(s(sel(cons(z0, z1), x1)), cons(x2, x3)) -> c3(A__SEL(a__sel(cons(mark(z0), z1), mark(x1)), mark(x3)), MARK(sel(cons(z0, z1), x1)))
   A__SEL(s(sel(s(z0), x1)), cons(x2, x3)) -> c3(A__SEL(a__sel(s(mark(z0)), mark(x1)), mark(x3)), MARK(sel(s(z0), x1)))
   A__SEL(s(sel(0, x1)), cons(x2, x3)) -> c3(A__SEL(a__sel(0, mark(x1)), mark(x3)), MARK(sel(0, x1)))
   A__SEL(s(sel(x0, x1)), cons(x2, s(z0))) -> c3(MARK(sel(x0, x1)))
   A__SEL(s(sel(x0, x1)), cons(x2, 0)) -> c3(MARK(sel(x0, x1)))
   A__SEL(s(sel(x0, x1)), cons(x2, x3)) -> c3(MARK(sel(x0, x1)))
   A__SEL(s(s(from(z0))), cons(x1, x2)) -> c3(A__SEL(s(a__from(mark(z0))), mark(x2)), MARK(s(from(z0))))
   A__SEL(s(s(sel(z0, z1))), cons(x1, x2)) -> c3(A__SEL(s(a__sel(mark(z0), mark(z1))), mark(x2)), MARK(s(sel(z0, z1))))
   A__SEL(s(s(cons(z0, z1))), cons(x1, x2)) -> c3(A__SEL(s(cons(mark(z0), z1)), mark(x2)), MARK(s(cons(z0, z1))))
   A__SEL(s(s(s(z0))), cons(x1, x2)) -> c3(A__SEL(s(s(mark(z0))), mark(x2)), MARK(s(s(z0))))
   A__SEL(s(s(0)), cons(x1, x2)) -> c3(A__SEL(s(0), mark(x2)), MARK(s(0)))
   A__SEL(s(s(x0)), cons(x1, x2)) -> c3(MARK(s(x0)))
   A__SEL(s(s(x0)), cons(x1, s(z0))) -> c3(MARK(s(x0)))
   A__SEL(s(s(x0)), cons(x1, 0)) -> c3(MARK(s(x0)))
   A__SEL(s(x0), cons(x1, from(x2))) -> c4(A__SEL(mark(x0), cons(mark(mark(x2)), from(s(mark(x2))))), MARK(from(x2)))
   A__SEL(s(x0), cons(x1, from(from(z0)))) -> c4(A__SEL(mark(x0), a__from(a__from(mark(z0)))), MARK(from(from(z0))))
   A__SEL(s(x0), cons(x1, from(sel(z0, z1)))) -> c4(A__SEL(mark(x0), a__from(a__sel(mark(z0), mark(z1)))), MARK(from(sel(z0, z1))))
   A__SEL(s(x0), cons(x1, from(cons(z0, z1)))) -> c4(A__SEL(mark(x0), a__from(cons(mark(z0), z1))), MARK(from(cons(z0, z1))))
   A__SEL(s(x0), cons(x1, from(s(z0)))) -> c4(A__SEL(mark(x0), a__from(s(mark(z0)))), MARK(from(s(z0))))
   A__SEL(s(x0), cons(x1, from(0))) -> c4(A__SEL(mark(x0), a__from(0)), MARK(from(0)))
   A__SEL(s(from(z0)), cons(x1, from(x2))) -> c4(A__SEL(a__from(mark(z0)), a__from(mark(x2))), MARK(from(x2)))
   A__SEL(s(sel(z0, z1)), cons(x1, from(x2))) -> c4(A__SEL(a__sel(mark(z0), mark(z1)), a__from(mark(x2))), MARK(from(x2)))
   A__SEL(s(s(z0)), cons(x1, from(x2))) -> c4(A__SEL(s(mark(z0)), a__from(mark(x2))), MARK(from(x2)))
   A__SEL(s(0), cons(x1, from(x2))) -> c4(A__SEL(0, a__from(mark(x2))), MARK(from(x2)))
   A__SEL(s(x0), cons(x1, from(x2))) -> c4(MARK(from(x2)))
   A__SEL(s(cons(z0, z1)), cons(x1, from(x2))) -> c4(MARK(from(x2)))
   A__SEL(s(x0), cons(x1, sel(x2, from(z0)))) -> c4(A__SEL(mark(x0), a__sel(mark(x2), a__from(mark(z0)))), MARK(sel(x2, from(z0))))
   A__SEL(s(x0), cons(x1, sel(x2, sel(z0, z1)))) -> c4(A__SEL(mark(x0), a__sel(mark(x2), a__sel(mark(z0), mark(z1)))), MARK(sel(x2, sel(z0, z1))))
   A__SEL(s(x0), cons(x1, sel(x2, cons(z0, z1)))) -> c4(A__SEL(mark(x0), a__sel(mark(x2), cons(mark(z0), z1))), MARK(sel(x2, cons(z0, z1))))
   A__SEL(s(x0), cons(x1, sel(x2, s(z0)))) -> c4(A__SEL(mark(x0), a__sel(mark(x2), s(mark(z0)))), MARK(sel(x2, s(z0))))
   A__SEL(s(x0), cons(x1, sel(x2, 0))) -> c4(A__SEL(mark(x0), a__sel(mark(x2), 0)), MARK(sel(x2, 0)))
   A__SEL(s(x0), cons(x1, sel(from(z0), x3))) -> c4(A__SEL(mark(x0), a__sel(a__from(mark(z0)), mark(x3))), MARK(sel(from(z0), x3)))
   A__SEL(s(x0), cons(x1, sel(sel(z0, z1), x3))) -> c4(A__SEL(mark(x0), a__sel(a__sel(mark(z0), mark(z1)), mark(x3))), MARK(sel(sel(z0, z1), x3)))
   A__SEL(s(x0), cons(x1, sel(cons(z0, z1), x3))) -> c4(A__SEL(mark(x0), a__sel(cons(mark(z0), z1), mark(x3))), MARK(sel(cons(z0, z1), x3)))
   A__SEL(s(x0), cons(x1, sel(s(z0), x3))) -> c4(A__SEL(mark(x0), a__sel(s(mark(z0)), mark(x3))), MARK(sel(s(z0), x3)))
   A__SEL(s(x0), cons(x1, sel(0, x3))) -> c4(A__SEL(mark(x0), a__sel(0, mark(x3))), MARK(sel(0, x3)))
   A__SEL(s(from(z0)), cons(x1, sel(x2, x3))) -> c4(A__SEL(a__from(mark(z0)), a__sel(mark(x2), mark(x3))), MARK(sel(x2, x3)))
   A__SEL(s(sel(z0, z1)), cons(x1, sel(x2, x3))) -> c4(A__SEL(a__sel(mark(z0), mark(z1)), a__sel(mark(x2), mark(x3))), MARK(sel(x2, x3)))
   A__SEL(s(s(z0)), cons(x1, sel(x2, x3))) -> c4(A__SEL(s(mark(z0)), a__sel(mark(x2), mark(x3))), MARK(sel(x2, x3)))
   A__SEL(s(0), cons(x1, sel(x2, x3))) -> c4(A__SEL(0, a__sel(mark(x2), mark(x3))), MARK(sel(x2, x3)))
   A__SEL(s(x0), cons(x1, sel(x2, x3))) -> c4(MARK(sel(x2, x3)))
   A__SEL(s(cons(z0, z1)), cons(x1, sel(x2, x3))) -> c4(MARK(sel(x2, x3)))
   A__SEL(s(x0), cons(x1, cons(from(z0), x3))) -> c4(A__SEL(mark(x0), cons(a__from(mark(z0)), x3)), MARK(cons(from(z0), x3)))
   A__SEL(s(x0), cons(x1, cons(sel(z0, z1), x3))) -> c4(A__SEL(mark(x0), cons(a__sel(mark(z0), mark(z1)), x3)), MARK(cons(sel(z0, z1), x3)))
   A__SEL(s(x0), cons(x1, cons(cons(z0, z1), x3))) -> c4(A__SEL(mark(x0), cons(cons(mark(z0), z1), x3)), MARK(cons(cons(z0, z1), x3)))
   A__SEL(s(x0), cons(x1, cons(s(z0), x3))) -> c4(A__SEL(mark(x0), cons(s(mark(z0)), x3)), MARK(cons(s(z0), x3)))
   A__SEL(s(x0), cons(x1, cons(0, x3))) -> c4(A__SEL(mark(x0), cons(0, x3)), MARK(cons(0, x3)))
   A__SEL(s(from(z0)), cons(x1, cons(x2, x3))) -> c4(A__SEL(a__from(mark(z0)), cons(mark(x2), x3)), MARK(cons(x2, x3)))
   A__SEL(s(sel(z0, z1)), cons(x1, cons(x2, x3))) -> c4(A__SEL(a__sel(mark(z0), mark(z1)), cons(mark(x2), x3)), MARK(cons(x2, x3)))
   A__SEL(s(s(z0)), cons(x1, cons(x2, x3))) -> c4(A__SEL(s(mark(z0)), cons(mark(x2), x3)), MARK(cons(x2, x3)))
   A__SEL(s(0), cons(x1, cons(x2, x3))) -> c4(A__SEL(0, cons(mark(x2), x3)), MARK(cons(x2, x3)))
   A__SEL(s(x0), cons(x1, cons(x2, x3))) -> c4(MARK(cons(x2, x3)))
   A__SEL(s(cons(z0, z1)), cons(x1, cons(x2, x3))) -> c4(MARK(cons(x2, x3)))
   A__SEL(s(from(from(z0))), cons(x1, x2)) -> c4(A__SEL(a__from(a__from(mark(z0))), mark(x2)), MARK(x2))
   A__SEL(s(from(sel(z0, z1))), cons(x1, x2)) -> c4(A__SEL(a__from(a__sel(mark(z0), mark(z1))), mark(x2)), MARK(x2))
   A__SEL(s(from(cons(z0, z1))), cons(x1, x2)) -> c4(A__SEL(a__from(cons(mark(z0), z1)), mark(x2)), MARK(x2))
   A__SEL(s(from(s(z0))), cons(x1, x2)) -> c4(A__SEL(a__from(s(mark(z0))), mark(x2)), MARK(x2))
   A__SEL(s(from(0)), cons(x1, x2)) -> c4(A__SEL(a__from(0), mark(x2)), MARK(x2))
   A__SEL(s(from(x0)), cons(x1, s(z0))) -> c4(MARK(s(z0)))
   A__SEL(s(from(x0)), cons(x1, x2)) -> c4(MARK(x2))
S tuples:
   A__FROM(z0) -> c(MARK(z0))
   A__SEL(0, cons(z0, z1)) -> c2(MARK(z0))
   MARK(from(z0)) -> c6(A__FROM(mark(z0)), MARK(z0))
   MARK(cons(z0, z1)) -> c9(MARK(z0))
   MARK(s(z0)) -> c10(MARK(z0))
   A__SEL(s(x0), cons(x1, s(z0))) -> c3(MARK(x0))
   A__SEL(s(x0), cons(x1, 0)) -> c3(MARK(x0))
   A__SEL(s(cons(z0, z1)), cons(x1, x2)) -> c3(MARK(cons(z0, z1)))
   A__SEL(s(sel(z0, z1)), cons(x1, x2)) -> c4(A__SEL(a__sel(mark(z0), mark(z1)), mark(x2)), MARK(x2))
   A__SEL(s(s(z0)), cons(x1, x2)) -> c4(A__SEL(s(mark(z0)), mark(x2)), MARK(x2))
   A__SEL(s(0), cons(x1, x2)) -> c4(A__SEL(0, mark(x2)), MARK(x2))
   A__SEL(s(x0), cons(x1, s(z0))) -> c4(MARK(s(z0)))
   A__SEL(s(cons(z0, z1)), cons(x1, x2)) -> c4(MARK(x2))
   MARK(sel(x0, from(z0))) -> c7(A__SEL(mark(x0), a__from(mark(z0))), MARK(x0))
   MARK(sel(x0, sel(z0, z1))) -> c7(A__SEL(mark(x0), a__sel(mark(z0), mark(z1))), MARK(x0))
   MARK(sel(x0, cons(z0, z1))) -> c7(A__SEL(mark(x0), cons(mark(z0), z1)), MARK(x0))
   MARK(sel(from(z0), x1)) -> c7(A__SEL(a__from(mark(z0)), mark(x1)), MARK(from(z0)))
   MARK(sel(sel(z0, z1), x1)) -> c7(A__SEL(a__sel(mark(z0), mark(z1)), mark(x1)), MARK(sel(z0, z1)))
   MARK(sel(s(z0), x1)) -> c7(A__SEL(s(mark(z0)), mark(x1)), MARK(s(z0)))
   MARK(sel(x0, s(z0))) -> c7(MARK(x0))
   MARK(sel(x0, 0)) -> c7(MARK(x0))
   MARK(sel(cons(z0, z1), x1)) -> c7(MARK(cons(z0, z1)))
   MARK(sel(0, x1)) -> c7(A__SEL(0, mark(x1)))
   MARK(sel(x0, from(z0))) -> c8(A__SEL(mark(x0), a__from(mark(z0))), MARK(from(z0)))
   MARK(sel(x0, sel(z0, z1))) -> c8(A__SEL(mark(x0), a__sel(mark(z0), mark(z1))), MARK(sel(z0, z1)))
   MARK(sel(x0, cons(z0, z1))) -> c8(A__SEL(mark(x0), cons(mark(z0), z1)), MARK(cons(z0, z1)))
   MARK(sel(from(z0), x1)) -> c8(A__SEL(a__from(mark(z0)), mark(x1)), MARK(x1))
   MARK(sel(sel(z0, z1), x1)) -> c8(A__SEL(a__sel(mark(z0), mark(z1)), mark(x1)), MARK(x1))
   MARK(sel(s(z0), x1)) -> c8(A__SEL(s(mark(z0)), mark(x1)), MARK(x1))
   MARK(sel(0, x1)) -> c8(A__SEL(0, mark(x1)), MARK(x1))
   MARK(sel(x0, s(z0))) -> c8(MARK(s(z0)))
   MARK(sel(cons(z0, z1), x1)) -> c8(MARK(x1))
   A__SEL(s(x0), cons(x1, from(x2))) -> c3(A__SEL(mark(x0), cons(mark(mark(x2)), from(s(mark(x2))))), MARK(x0))
   A__SEL(s(x0), cons(x1, from(from(z0)))) -> c3(A__SEL(mark(x0), a__from(a__from(mark(z0)))), MARK(x0))
   A__SEL(s(x0), cons(x1, from(sel(z0, z1)))) -> c3(A__SEL(mark(x0), a__from(a__sel(mark(z0), mark(z1)))), MARK(x0))
   A__SEL(s(x0), cons(x1, from(cons(z0, z1)))) -> c3(A__SEL(mark(x0), a__from(cons(mark(z0), z1))), MARK(x0))
   A__SEL(s(x0), cons(x1, from(s(z0)))) -> c3(A__SEL(mark(x0), a__from(s(mark(z0)))), MARK(x0))
   A__SEL(s(x0), cons(x1, from(0))) -> c3(A__SEL(mark(x0), a__from(0)), MARK(x0))
   A__SEL(s(from(z0)), cons(x1, from(x2))) -> c3(A__SEL(a__from(mark(z0)), a__from(mark(x2))), MARK(from(z0)))
   A__SEL(s(sel(z0, z1)), cons(x1, from(x2))) -> c3(A__SEL(a__sel(mark(z0), mark(z1)), a__from(mark(x2))), MARK(sel(z0, z1)))
   A__SEL(s(s(z0)), cons(x1, from(x2))) -> c3(A__SEL(s(mark(z0)), a__from(mark(x2))), MARK(s(z0)))
   A__SEL(s(x0), cons(x1, from(x2))) -> c3(MARK(x0))
   A__SEL(s(cons(z0, z1)), cons(x1, from(x2))) -> c3(MARK(cons(z0, z1)))
   A__SEL(s(0), cons(x1, from(x2))) -> c3(A__SEL(0, a__from(mark(x2))))
   A__SEL(s(x0), cons(x1, sel(x2, from(z0)))) -> c3(A__SEL(mark(x0), a__sel(mark(x2), a__from(mark(z0)))), MARK(x0))
   A__SEL(s(x0), cons(x1, sel(x2, sel(z0, z1)))) -> c3(A__SEL(mark(x0), a__sel(mark(x2), a__sel(mark(z0), mark(z1)))), MARK(x0))
   A__SEL(s(x0), cons(x1, sel(x2, cons(z0, z1)))) -> c3(A__SEL(mark(x0), a__sel(mark(x2), cons(mark(z0), z1))), MARK(x0))
   A__SEL(s(x0), cons(x1, sel(x2, s(z0)))) -> c3(A__SEL(mark(x0), a__sel(mark(x2), s(mark(z0)))), MARK(x0))
   A__SEL(s(x0), cons(x1, sel(x2, 0))) -> c3(A__SEL(mark(x0), a__sel(mark(x2), 0)), MARK(x0))
   A__SEL(s(x0), cons(x1, sel(from(z0), x3))) -> c3(A__SEL(mark(x0), a__sel(a__from(mark(z0)), mark(x3))), MARK(x0))
   A__SEL(s(x0), cons(x1, sel(sel(z0, z1), x3))) -> c3(A__SEL(mark(x0), a__sel(a__sel(mark(z0), mark(z1)), mark(x3))), MARK(x0))
   A__SEL(s(x0), cons(x1, sel(cons(z0, z1), x3))) -> c3(A__SEL(mark(x0), a__sel(cons(mark(z0), z1), mark(x3))), MARK(x0))
   A__SEL(s(x0), cons(x1, sel(s(z0), x3))) -> c3(A__SEL(mark(x0), a__sel(s(mark(z0)), mark(x3))), MARK(x0))
   A__SEL(s(x0), cons(x1, sel(0, x3))) -> c3(A__SEL(mark(x0), a__sel(0, mark(x3))), MARK(x0))
   A__SEL(s(from(z0)), cons(x1, sel(x2, x3))) -> c3(A__SEL(a__from(mark(z0)), a__sel(mark(x2), mark(x3))), MARK(from(z0)))
   A__SEL(s(sel(z0, z1)), cons(x1, sel(x2, x3))) -> c3(A__SEL(a__sel(mark(z0), mark(z1)), a__sel(mark(x2), mark(x3))), MARK(sel(z0, z1)))
   A__SEL(s(s(z0)), cons(x1, sel(x2, x3))) -> c3(A__SEL(s(mark(z0)), a__sel(mark(x2), mark(x3))), MARK(s(z0)))
   A__SEL(s(x0), cons(x1, sel(x2, x3))) -> c3(MARK(x0))
   A__SEL(s(cons(z0, z1)), cons(x1, sel(x2, x3))) -> c3(MARK(cons(z0, z1)))
   A__SEL(s(0), cons(x1, sel(x2, x3))) -> c3(A__SEL(0, a__sel(mark(x2), mark(x3))))
   A__SEL(s(x0), cons(x1, cons(from(z0), x3))) -> c3(A__SEL(mark(x0), cons(a__from(mark(z0)), x3)), MARK(x0))
   A__SEL(s(x0), cons(x1, cons(sel(z0, z1), x3))) -> c3(A__SEL(mark(x0), cons(a__sel(mark(z0), mark(z1)), x3)), MARK(x0))
   A__SEL(s(x0), cons(x1, cons(cons(z0, z1), x3))) -> c3(A__SEL(mark(x0), cons(cons(mark(z0), z1), x3)), MARK(x0))
   A__SEL(s(x0), cons(x1, cons(s(z0), x3))) -> c3(A__SEL(mark(x0), cons(s(mark(z0)), x3)), MARK(x0))
   A__SEL(s(x0), cons(x1, cons(0, x3))) -> c3(A__SEL(mark(x0), cons(0, x3)), MARK(x0))
   A__SEL(s(from(z0)), cons(x1, cons(x2, x3))) -> c3(A__SEL(a__from(mark(z0)), cons(mark(x2), x3)), MARK(from(z0)))
   A__SEL(s(sel(z0, z1)), cons(x1, cons(x2, x3))) -> c3(A__SEL(a__sel(mark(z0), mark(z1)), cons(mark(x2), x3)), MARK(sel(z0, z1)))
   A__SEL(s(s(z0)), cons(x1, cons(x2, x3))) -> c3(A__SEL(s(mark(z0)), cons(mark(x2), x3)), MARK(s(z0)))
   A__SEL(s(cons(z0, z1)), cons(x1, cons(x2, x3))) -> c3(MARK(cons(z0, z1)))
   A__SEL(s(0), cons(x1, cons(x2, x3))) -> c3(A__SEL(0, cons(mark(x2), x3)))
   A__SEL(s(from(from(z0))), cons(x1, x2)) -> c3(A__SEL(a__from(a__from(mark(z0))), mark(x2)), MARK(from(from(z0))))
   A__SEL(s(from(sel(z0, z1))), cons(x1, x2)) -> c3(A__SEL(a__from(a__sel(mark(z0), mark(z1))), mark(x2)), MARK(from(sel(z0, z1))))
   A__SEL(s(from(cons(z0, z1))), cons(x1, x2)) -> c3(A__SEL(a__from(cons(mark(z0), z1)), mark(x2)), MARK(from(cons(z0, z1))))
   A__SEL(s(from(s(z0))), cons(x1, x2)) -> c3(A__SEL(a__from(s(mark(z0))), mark(x2)), MARK(from(s(z0))))
   A__SEL(s(from(0)), cons(x1, x2)) -> c3(A__SEL(a__from(0), mark(x2)), MARK(from(0)))
   A__SEL(s(from(x0)), cons(x1, x2)) -> c3(MARK(from(x0)))
   A__SEL(s(from(x0)), cons(x1, s(z0))) -> c3(MARK(from(x0)))
   A__SEL(s(from(x0)), cons(x1, 0)) -> c3(MARK(from(x0)))
   A__SEL(s(sel(x0, from(z0))), cons(x2, x3)) -> c3(A__SEL(a__sel(mark(x0), a__from(mark(z0))), mark(x3)), MARK(sel(x0, from(z0))))
   A__SEL(s(sel(x0, sel(z0, z1))), cons(x2, x3)) -> c3(A__SEL(a__sel(mark(x0), a__sel(mark(z0), mark(z1))), mark(x3)), MARK(sel(x0, sel(z0, z1))))
   A__SEL(s(sel(x0, cons(z0, z1))), cons(x2, x3)) -> c3(A__SEL(a__sel(mark(x0), cons(mark(z0), z1)), mark(x3)), MARK(sel(x0, cons(z0, z1))))
   A__SEL(s(sel(x0, s(z0))), cons(x2, x3)) -> c3(A__SEL(a__sel(mark(x0), s(mark(z0))), mark(x3)), MARK(sel(x0, s(z0))))
   A__SEL(s(sel(x0, 0)), cons(x2, x3)) -> c3(A__SEL(a__sel(mark(x0), 0), mark(x3)), MARK(sel(x0, 0)))
   A__SEL(s(sel(from(z0), x1)), cons(x2, x3)) -> c3(A__SEL(a__sel(a__from(mark(z0)), mark(x1)), mark(x3)), MARK(sel(from(z0), x1)))
   A__SEL(s(sel(sel(z0, z1), x1)), cons(x2, x3)) -> c3(A__SEL(a__sel(a__sel(mark(z0), mark(z1)), mark(x1)), mark(x3)), MARK(sel(sel(z0, z1), x1)))
   A__SEL(s(sel(cons(z0, z1), x1)), cons(x2, x3)) -> c3(A__SEL(a__sel(cons(mark(z0), z1), mark(x1)), mark(x3)), MARK(sel(cons(z0, z1), x1)))
   A__SEL(s(sel(s(z0), x1)), cons(x2, x3)) -> c3(A__SEL(a__sel(s(mark(z0)), mark(x1)), mark(x3)), MARK(sel(s(z0), x1)))
   A__SEL(s(sel(0, x1)), cons(x2, x3)) -> c3(A__SEL(a__sel(0, mark(x1)), mark(x3)), MARK(sel(0, x1)))
   A__SEL(s(sel(x0, x1)), cons(x2, s(z0))) -> c3(MARK(sel(x0, x1)))
   A__SEL(s(sel(x0, x1)), cons(x2, 0)) -> c3(MARK(sel(x0, x1)))
   A__SEL(s(sel(x0, x1)), cons(x2, x3)) -> c3(MARK(sel(x0, x1)))
   A__SEL(s(s(from(z0))), cons(x1, x2)) -> c3(A__SEL(s(a__from(mark(z0))), mark(x2)), MARK(s(from(z0))))
   A__SEL(s(s(sel(z0, z1))), cons(x1, x2)) -> c3(A__SEL(s(a__sel(mark(z0), mark(z1))), mark(x2)), MARK(s(sel(z0, z1))))
   A__SEL(s(s(cons(z0, z1))), cons(x1, x2)) -> c3(A__SEL(s(cons(mark(z0), z1)), mark(x2)), MARK(s(cons(z0, z1))))
   A__SEL(s(s(s(z0))), cons(x1, x2)) -> c3(A__SEL(s(s(mark(z0))), mark(x2)), MARK(s(s(z0))))
   A__SEL(s(s(0)), cons(x1, x2)) -> c3(A__SEL(s(0), mark(x2)), MARK(s(0)))
   A__SEL(s(s(x0)), cons(x1, x2)) -> c3(MARK(s(x0)))
   A__SEL(s(s(x0)), cons(x1, s(z0))) -> c3(MARK(s(x0)))
   A__SEL(s(s(x0)), cons(x1, 0)) -> c3(MARK(s(x0)))
   A__SEL(s(x0), cons(x1, from(x2))) -> c4(A__SEL(mark(x0), cons(mark(mark(x2)), from(s(mark(x2))))), MARK(from(x2)))
   A__SEL(s(x0), cons(x1, from(from(z0)))) -> c4(A__SEL(mark(x0), a__from(a__from(mark(z0)))), MARK(from(from(z0))))
   A__SEL(s(x0), cons(x1, from(sel(z0, z1)))) -> c4(A__SEL(mark(x0), a__from(a__sel(mark(z0), mark(z1)))), MARK(from(sel(z0, z1))))
   A__SEL(s(x0), cons(x1, from(cons(z0, z1)))) -> c4(A__SEL(mark(x0), a__from(cons(mark(z0), z1))), MARK(from(cons(z0, z1))))
   A__SEL(s(x0), cons(x1, from(s(z0)))) -> c4(A__SEL(mark(x0), a__from(s(mark(z0)))), MARK(from(s(z0))))
   A__SEL(s(x0), cons(x1, from(0))) -> c4(A__SEL(mark(x0), a__from(0)), MARK(from(0)))
   A__SEL(s(from(z0)), cons(x1, from(x2))) -> c4(A__SEL(a__from(mark(z0)), a__from(mark(x2))), MARK(from(x2)))
   A__SEL(s(sel(z0, z1)), cons(x1, from(x2))) -> c4(A__SEL(a__sel(mark(z0), mark(z1)), a__from(mark(x2))), MARK(from(x2)))
   A__SEL(s(s(z0)), cons(x1, from(x2))) -> c4(A__SEL(s(mark(z0)), a__from(mark(x2))), MARK(from(x2)))
   A__SEL(s(0), cons(x1, from(x2))) -> c4(A__SEL(0, a__from(mark(x2))), MARK(from(x2)))
   A__SEL(s(x0), cons(x1, from(x2))) -> c4(MARK(from(x2)))
   A__SEL(s(cons(z0, z1)), cons(x1, from(x2))) -> c4(MARK(from(x2)))
   A__SEL(s(x0), cons(x1, sel(x2, from(z0)))) -> c4(A__SEL(mark(x0), a__sel(mark(x2), a__from(mark(z0)))), MARK(sel(x2, from(z0))))
   A__SEL(s(x0), cons(x1, sel(x2, sel(z0, z1)))) -> c4(A__SEL(mark(x0), a__sel(mark(x2), a__sel(mark(z0), mark(z1)))), MARK(sel(x2, sel(z0, z1))))
   A__SEL(s(x0), cons(x1, sel(x2, cons(z0, z1)))) -> c4(A__SEL(mark(x0), a__sel(mark(x2), cons(mark(z0), z1))), MARK(sel(x2, cons(z0, z1))))
   A__SEL(s(x0), cons(x1, sel(x2, s(z0)))) -> c4(A__SEL(mark(x0), a__sel(mark(x2), s(mark(z0)))), MARK(sel(x2, s(z0))))
   A__SEL(s(x0), cons(x1, sel(x2, 0))) -> c4(A__SEL(mark(x0), a__sel(mark(x2), 0)), MARK(sel(x2, 0)))
   A__SEL(s(x0), cons(x1, sel(from(z0), x3))) -> c4(A__SEL(mark(x0), a__sel(a__from(mark(z0)), mark(x3))), MARK(sel(from(z0), x3)))
   A__SEL(s(x0), cons(x1, sel(sel(z0, z1), x3))) -> c4(A__SEL(mark(x0), a__sel(a__sel(mark(z0), mark(z1)), mark(x3))), MARK(sel(sel(z0, z1), x3)))
   A__SEL(s(x0), cons(x1, sel(cons(z0, z1), x3))) -> c4(A__SEL(mark(x0), a__sel(cons(mark(z0), z1), mark(x3))), MARK(sel(cons(z0, z1), x3)))
   A__SEL(s(x0), cons(x1, sel(s(z0), x3))) -> c4(A__SEL(mark(x0), a__sel(s(mark(z0)), mark(x3))), MARK(sel(s(z0), x3)))
   A__SEL(s(x0), cons(x1, sel(0, x3))) -> c4(A__SEL(mark(x0), a__sel(0, mark(x3))), MARK(sel(0, x3)))
   A__SEL(s(from(z0)), cons(x1, sel(x2, x3))) -> c4(A__SEL(a__from(mark(z0)), a__sel(mark(x2), mark(x3))), MARK(sel(x2, x3)))
   A__SEL(s(sel(z0, z1)), cons(x1, sel(x2, x3))) -> c4(A__SEL(a__sel(mark(z0), mark(z1)), a__sel(mark(x2), mark(x3))), MARK(sel(x2, x3)))
   A__SEL(s(s(z0)), cons(x1, sel(x2, x3))) -> c4(A__SEL(s(mark(z0)), a__sel(mark(x2), mark(x3))), MARK(sel(x2, x3)))
   A__SEL(s(0), cons(x1, sel(x2, x3))) -> c4(A__SEL(0, a__sel(mark(x2), mark(x3))), MARK(sel(x2, x3)))
   A__SEL(s(x0), cons(x1, sel(x2, x3))) -> c4(MARK(sel(x2, x3)))
   A__SEL(s(cons(z0, z1)), cons(x1, sel(x2, x3))) -> c4(MARK(sel(x2, x3)))
   A__SEL(s(x0), cons(x1, cons(from(z0), x3))) -> c4(A__SEL(mark(x0), cons(a__from(mark(z0)), x3)), MARK(cons(from(z0), x3)))
   A__SEL(s(x0), cons(x1, cons(sel(z0, z1), x3))) -> c4(A__SEL(mark(x0), cons(a__sel(mark(z0), mark(z1)), x3)), MARK(cons(sel(z0, z1), x3)))
   A__SEL(s(x0), cons(x1, cons(cons(z0, z1), x3))) -> c4(A__SEL(mark(x0), cons(cons(mark(z0), z1), x3)), MARK(cons(cons(z0, z1), x3)))
   A__SEL(s(x0), cons(x1, cons(s(z0), x3))) -> c4(A__SEL(mark(x0), cons(s(mark(z0)), x3)), MARK(cons(s(z0), x3)))
   A__SEL(s(x0), cons(x1, cons(0, x3))) -> c4(A__SEL(mark(x0), cons(0, x3)), MARK(cons(0, x3)))
   A__SEL(s(from(z0)), cons(x1, cons(x2, x3))) -> c4(A__SEL(a__from(mark(z0)), cons(mark(x2), x3)), MARK(cons(x2, x3)))
   A__SEL(s(sel(z0, z1)), cons(x1, cons(x2, x3))) -> c4(A__SEL(a__sel(mark(z0), mark(z1)), cons(mark(x2), x3)), MARK(cons(x2, x3)))
   A__SEL(s(s(z0)), cons(x1, cons(x2, x3))) -> c4(A__SEL(s(mark(z0)), cons(mark(x2), x3)), MARK(cons(x2, x3)))
   A__SEL(s(0), cons(x1, cons(x2, x3))) -> c4(A__SEL(0, cons(mark(x2), x3)), MARK(cons(x2, x3)))
   A__SEL(s(x0), cons(x1, cons(x2, x3))) -> c4(MARK(cons(x2, x3)))
   A__SEL(s(cons(z0, z1)), cons(x1, cons(x2, x3))) -> c4(MARK(cons(x2, x3)))
   A__SEL(s(from(from(z0))), cons(x1, x2)) -> c4(A__SEL(a__from(a__from(mark(z0))), mark(x2)), MARK(x2))
   A__SEL(s(from(sel(z0, z1))), cons(x1, x2)) -> c4(A__SEL(a__from(a__sel(mark(z0), mark(z1))), mark(x2)), MARK(x2))
   A__SEL(s(from(cons(z0, z1))), cons(x1, x2)) -> c4(A__SEL(a__from(cons(mark(z0), z1)), mark(x2)), MARK(x2))
   A__SEL(s(from(s(z0))), cons(x1, x2)) -> c4(A__SEL(a__from(s(mark(z0))), mark(x2)), MARK(x2))
   A__SEL(s(from(0)), cons(x1, x2)) -> c4(A__SEL(a__from(0), mark(x2)), MARK(x2))
   A__SEL(s(from(x0)), cons(x1, s(z0))) -> c4(MARK(s(z0)))
   A__SEL(s(from(x0)), cons(x1, x2)) -> c4(MARK(x2))
K tuples:none
Defined Rule Symbols:   a__from_1, a__sel_2, mark_1

Defined Pair Symbols:   A__FROM_1, A__SEL_2, MARK_1

Compound Symbols:   c_1, c2_1, c6_2, c9_1, c10_1, c3_1, c4_2, c4_1, c7_2, c7_1, c8_2, c8_1, c3_2


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

(123) CdtNarrowingProof (BOTH BOUNDS(ID, ID))
Use narrowing to replace A__SEL(s(sel(z0, z1)), cons(x1, x2)) -> c4(A__SEL(a__sel(mark(z0), mark(z1)), mark(x2)), MARK(x2)) by 
   A__SEL(s(sel(x0, x1)), cons(x2, from(z0))) -> c4(A__SEL(a__sel(mark(x0), mark(x1)), a__from(mark(z0))), MARK(from(z0)))
   A__SEL(s(sel(x0, x1)), cons(x2, sel(z0, z1))) -> c4(A__SEL(a__sel(mark(x0), mark(x1)), a__sel(mark(z0), mark(z1))), MARK(sel(z0, z1)))
   A__SEL(s(sel(x0, x1)), cons(x2, cons(z0, z1))) -> c4(A__SEL(a__sel(mark(x0), mark(x1)), cons(mark(z0), z1)), MARK(cons(z0, z1)))
   A__SEL(s(sel(x0, x1)), cons(x2, s(z0))) -> c4(A__SEL(a__sel(mark(x0), mark(x1)), s(mark(z0))), MARK(s(z0)))
   A__SEL(s(sel(x0, x1)), cons(x2, 0)) -> c4(A__SEL(a__sel(mark(x0), mark(x1)), 0), MARK(0))
   A__SEL(s(sel(x0, x1)), cons(x2, x3)) -> c4(A__SEL(sel(mark(x0), mark(x1)), mark(x3)), MARK(x3))
   A__SEL(s(sel(x0, from(z0))), cons(x2, x3)) -> c4(A__SEL(a__sel(mark(x0), a__from(mark(z0))), mark(x3)), MARK(x3))
   A__SEL(s(sel(x0, sel(z0, z1))), cons(x2, x3)) -> c4(A__SEL(a__sel(mark(x0), a__sel(mark(z0), mark(z1))), mark(x3)), MARK(x3))
   A__SEL(s(sel(x0, cons(z0, z1))), cons(x2, x3)) -> c4(A__SEL(a__sel(mark(x0), cons(mark(z0), z1)), mark(x3)), MARK(x3))
   A__SEL(s(sel(x0, s(z0))), cons(x2, x3)) -> c4(A__SEL(a__sel(mark(x0), s(mark(z0))), mark(x3)), MARK(x3))
   A__SEL(s(sel(x0, 0)), cons(x2, x3)) -> c4(A__SEL(a__sel(mark(x0), 0), mark(x3)), MARK(x3))
   A__SEL(s(sel(from(z0), x1)), cons(x2, x3)) -> c4(A__SEL(a__sel(a__from(mark(z0)), mark(x1)), mark(x3)), MARK(x3))
   A__SEL(s(sel(sel(z0, z1), x1)), cons(x2, x3)) -> c4(A__SEL(a__sel(a__sel(mark(z0), mark(z1)), mark(x1)), mark(x3)), MARK(x3))
   A__SEL(s(sel(cons(z0, z1), x1)), cons(x2, x3)) -> c4(A__SEL(a__sel(cons(mark(z0), z1), mark(x1)), mark(x3)), MARK(x3))
   A__SEL(s(sel(s(z0), x1)), cons(x2, x3)) -> c4(A__SEL(a__sel(s(mark(z0)), mark(x1)), mark(x3)), MARK(x3))
   A__SEL(s(sel(0, x1)), cons(x2, x3)) -> c4(A__SEL(a__sel(0, mark(x1)), mark(x3)), MARK(x3))

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

(124)
Obligation:
Complexity Dependency Tuples Problem

Rules:
   a__from(z0) -> cons(mark(z0), from(s(z0)))
   a__from(z0) -> from(z0)
   a__sel(0, cons(z0, z1)) -> mark(z0)
   a__sel(s(z0), cons(z1, z2)) -> a__sel(mark(z0), mark(z2))
   a__sel(z0, z1) -> sel(z0, z1)
   mark(from(z0)) -> a__from(mark(z0))
   mark(sel(z0, z1)) -> a__sel(mark(z0), mark(z1))
   mark(cons(z0, z1)) -> cons(mark(z0), z1)
   mark(s(z0)) -> s(mark(z0))
   mark(0) -> 0
Tuples:
   A__FROM(z0) -> c(MARK(z0))
   A__SEL(0, cons(z0, z1)) -> c2(MARK(z0))
   MARK(from(z0)) -> c6(A__FROM(mark(z0)), MARK(z0))
   MARK(cons(z0, z1)) -> c9(MARK(z0))
   MARK(s(z0)) -> c10(MARK(z0))
   A__SEL(s(x0), cons(x1, s(z0))) -> c3(MARK(x0))
   A__SEL(s(x0), cons(x1, 0)) -> c3(MARK(x0))
   A__SEL(s(cons(z0, z1)), cons(x1, x2)) -> c3(MARK(cons(z0, z1)))
   A__SEL(s(s(z0)), cons(x1, x2)) -> c4(A__SEL(s(mark(z0)), mark(x2)), MARK(x2))
   A__SEL(s(0), cons(x1, x2)) -> c4(A__SEL(0, mark(x2)), MARK(x2))
   A__SEL(s(x0), cons(x1, s(z0))) -> c4(MARK(s(z0)))
   A__SEL(s(cons(z0, z1)), cons(x1, x2)) -> c4(MARK(x2))
   MARK(sel(x0, from(z0))) -> c7(A__SEL(mark(x0), a__from(mark(z0))), MARK(x0))
   MARK(sel(x0, sel(z0, z1))) -> c7(A__SEL(mark(x0), a__sel(mark(z0), mark(z1))), MARK(x0))
   MARK(sel(x0, cons(z0, z1))) -> c7(A__SEL(mark(x0), cons(mark(z0), z1)), MARK(x0))
   MARK(sel(from(z0), x1)) -> c7(A__SEL(a__from(mark(z0)), mark(x1)), MARK(from(z0)))
   MARK(sel(sel(z0, z1), x1)) -> c7(A__SEL(a__sel(mark(z0), mark(z1)), mark(x1)), MARK(sel(z0, z1)))
   MARK(sel(s(z0), x1)) -> c7(A__SEL(s(mark(z0)), mark(x1)), MARK(s(z0)))
   MARK(sel(x0, s(z0))) -> c7(MARK(x0))
   MARK(sel(x0, 0)) -> c7(MARK(x0))
   MARK(sel(cons(z0, z1), x1)) -> c7(MARK(cons(z0, z1)))
   MARK(sel(0, x1)) -> c7(A__SEL(0, mark(x1)))
   MARK(sel(x0, from(z0))) -> c8(A__SEL(mark(x0), a__from(mark(z0))), MARK(from(z0)))
   MARK(sel(x0, sel(z0, z1))) -> c8(A__SEL(mark(x0), a__sel(mark(z0), mark(z1))), MARK(sel(z0, z1)))
   MARK(sel(x0, cons(z0, z1))) -> c8(A__SEL(mark(x0), cons(mark(z0), z1)), MARK(cons(z0, z1)))
   MARK(sel(from(z0), x1)) -> c8(A__SEL(a__from(mark(z0)), mark(x1)), MARK(x1))
   MARK(sel(sel(z0, z1), x1)) -> c8(A__SEL(a__sel(mark(z0), mark(z1)), mark(x1)), MARK(x1))
   MARK(sel(s(z0), x1)) -> c8(A__SEL(s(mark(z0)), mark(x1)), MARK(x1))
   MARK(sel(0, x1)) -> c8(A__SEL(0, mark(x1)), MARK(x1))
   MARK(sel(x0, s(z0))) -> c8(MARK(s(z0)))
   MARK(sel(cons(z0, z1), x1)) -> c8(MARK(x1))
   A__SEL(s(x0), cons(x1, from(x2))) -> c3(A__SEL(mark(x0), cons(mark(mark(x2)), from(s(mark(x2))))), MARK(x0))
   A__SEL(s(x0), cons(x1, from(from(z0)))) -> c3(A__SEL(mark(x0), a__from(a__from(mark(z0)))), MARK(x0))
   A__SEL(s(x0), cons(x1, from(sel(z0, z1)))) -> c3(A__SEL(mark(x0), a__from(a__sel(mark(z0), mark(z1)))), MARK(x0))
   A__SEL(s(x0), cons(x1, from(cons(z0, z1)))) -> c3(A__SEL(mark(x0), a__from(cons(mark(z0), z1))), MARK(x0))
   A__SEL(s(x0), cons(x1, from(s(z0)))) -> c3(A__SEL(mark(x0), a__from(s(mark(z0)))), MARK(x0))
   A__SEL(s(x0), cons(x1, from(0))) -> c3(A__SEL(mark(x0), a__from(0)), MARK(x0))
   A__SEL(s(from(z0)), cons(x1, from(x2))) -> c3(A__SEL(a__from(mark(z0)), a__from(mark(x2))), MARK(from(z0)))
   A__SEL(s(sel(z0, z1)), cons(x1, from(x2))) -> c3(A__SEL(a__sel(mark(z0), mark(z1)), a__from(mark(x2))), MARK(sel(z0, z1)))
   A__SEL(s(s(z0)), cons(x1, from(x2))) -> c3(A__SEL(s(mark(z0)), a__from(mark(x2))), MARK(s(z0)))
   A__SEL(s(x0), cons(x1, from(x2))) -> c3(MARK(x0))
   A__SEL(s(cons(z0, z1)), cons(x1, from(x2))) -> c3(MARK(cons(z0, z1)))
   A__SEL(s(0), cons(x1, from(x2))) -> c3(A__SEL(0, a__from(mark(x2))))
   A__SEL(s(x0), cons(x1, sel(x2, from(z0)))) -> c3(A__SEL(mark(x0), a__sel(mark(x2), a__from(mark(z0)))), MARK(x0))
   A__SEL(s(x0), cons(x1, sel(x2, sel(z0, z1)))) -> c3(A__SEL(mark(x0), a__sel(mark(x2), a__sel(mark(z0), mark(z1)))), MARK(x0))
   A__SEL(s(x0), cons(x1, sel(x2, cons(z0, z1)))) -> c3(A__SEL(mark(x0), a__sel(mark(x2), cons(mark(z0), z1))), MARK(x0))
   A__SEL(s(x0), cons(x1, sel(x2, s(z0)))) -> c3(A__SEL(mark(x0), a__sel(mark(x2), s(mark(z0)))), MARK(x0))
   A__SEL(s(x0), cons(x1, sel(x2, 0))) -> c3(A__SEL(mark(x0), a__sel(mark(x2), 0)), MARK(x0))
   A__SEL(s(x0), cons(x1, sel(from(z0), x3))) -> c3(A__SEL(mark(x0), a__sel(a__from(mark(z0)), mark(x3))), MARK(x0))
   A__SEL(s(x0), cons(x1, sel(sel(z0, z1), x3))) -> c3(A__SEL(mark(x0), a__sel(a__sel(mark(z0), mark(z1)), mark(x3))), MARK(x0))
   A__SEL(s(x0), cons(x1, sel(cons(z0, z1), x3))) -> c3(A__SEL(mark(x0), a__sel(cons(mark(z0), z1), mark(x3))), MARK(x0))
   A__SEL(s(x0), cons(x1, sel(s(z0), x3))) -> c3(A__SEL(mark(x0), a__sel(s(mark(z0)), mark(x3))), MARK(x0))
   A__SEL(s(x0), cons(x1, sel(0, x3))) -> c3(A__SEL(mark(x0), a__sel(0, mark(x3))), MARK(x0))
   A__SEL(s(from(z0)), cons(x1, sel(x2, x3))) -> c3(A__SEL(a__from(mark(z0)), a__sel(mark(x2), mark(x3))), MARK(from(z0)))
   A__SEL(s(sel(z0, z1)), cons(x1, sel(x2, x3))) -> c3(A__SEL(a__sel(mark(z0), mark(z1)), a__sel(mark(x2), mark(x3))), MARK(sel(z0, z1)))
   A__SEL(s(s(z0)), cons(x1, sel(x2, x3))) -> c3(A__SEL(s(mark(z0)), a__sel(mark(x2), mark(x3))), MARK(s(z0)))
   A__SEL(s(x0), cons(x1, sel(x2, x3))) -> c3(MARK(x0))
   A__SEL(s(cons(z0, z1)), cons(x1, sel(x2, x3))) -> c3(MARK(cons(z0, z1)))
   A__SEL(s(0), cons(x1, sel(x2, x3))) -> c3(A__SEL(0, a__sel(mark(x2), mark(x3))))
   A__SEL(s(x0), cons(x1, cons(from(z0), x3))) -> c3(A__SEL(mark(x0), cons(a__from(mark(z0)), x3)), MARK(x0))
   A__SEL(s(x0), cons(x1, cons(sel(z0, z1), x3))) -> c3(A__SEL(mark(x0), cons(a__sel(mark(z0), mark(z1)), x3)), MARK(x0))
   A__SEL(s(x0), cons(x1, cons(cons(z0, z1), x3))) -> c3(A__SEL(mark(x0), cons(cons(mark(z0), z1), x3)), MARK(x0))
   A__SEL(s(x0), cons(x1, cons(s(z0), x3))) -> c3(A__SEL(mark(x0), cons(s(mark(z0)), x3)), MARK(x0))
   A__SEL(s(x0), cons(x1, cons(0, x3))) -> c3(A__SEL(mark(x0), cons(0, x3)), MARK(x0))
   A__SEL(s(from(z0)), cons(x1, cons(x2, x3))) -> c3(A__SEL(a__from(mark(z0)), cons(mark(x2), x3)), MARK(from(z0)))
   A__SEL(s(sel(z0, z1)), cons(x1, cons(x2, x3))) -> c3(A__SEL(a__sel(mark(z0), mark(z1)), cons(mark(x2), x3)), MARK(sel(z0, z1)))
   A__SEL(s(s(z0)), cons(x1, cons(x2, x3))) -> c3(A__SEL(s(mark(z0)), cons(mark(x2), x3)), MARK(s(z0)))
   A__SEL(s(cons(z0, z1)), cons(x1, cons(x2, x3))) -> c3(MARK(cons(z0, z1)))
   A__SEL(s(0), cons(x1, cons(x2, x3))) -> c3(A__SEL(0, cons(mark(x2), x3)))
   A__SEL(s(from(from(z0))), cons(x1, x2)) -> c3(A__SEL(a__from(a__from(mark(z0))), mark(x2)), MARK(from(from(z0))))
   A__SEL(s(from(sel(z0, z1))), cons(x1, x2)) -> c3(A__SEL(a__from(a__sel(mark(z0), mark(z1))), mark(x2)), MARK(from(sel(z0, z1))))
   A__SEL(s(from(cons(z0, z1))), cons(x1, x2)) -> c3(A__SEL(a__from(cons(mark(z0), z1)), mark(x2)), MARK(from(cons(z0, z1))))
   A__SEL(s(from(s(z0))), cons(x1, x2)) -> c3(A__SEL(a__from(s(mark(z0))), mark(x2)), MARK(from(s(z0))))
   A__SEL(s(from(0)), cons(x1, x2)) -> c3(A__SEL(a__from(0), mark(x2)), MARK(from(0)))
   A__SEL(s(from(x0)), cons(x1, x2)) -> c3(MARK(from(x0)))
   A__SEL(s(from(x0)), cons(x1, s(z0))) -> c3(MARK(from(x0)))
   A__SEL(s(from(x0)), cons(x1, 0)) -> c3(MARK(from(x0)))
   A__SEL(s(sel(x0, from(z0))), cons(x2, x3)) -> c3(A__SEL(a__sel(mark(x0), a__from(mark(z0))), mark(x3)), MARK(sel(x0, from(z0))))
   A__SEL(s(sel(x0, sel(z0, z1))), cons(x2, x3)) -> c3(A__SEL(a__sel(mark(x0), a__sel(mark(z0), mark(z1))), mark(x3)), MARK(sel(x0, sel(z0, z1))))
   A__SEL(s(sel(x0, cons(z0, z1))), cons(x2, x3)) -> c3(A__SEL(a__sel(mark(x0), cons(mark(z0), z1)), mark(x3)), MARK(sel(x0, cons(z0, z1))))
   A__SEL(s(sel(x0, s(z0))), cons(x2, x3)) -> c3(A__SEL(a__sel(mark(x0), s(mark(z0))), mark(x3)), MARK(sel(x0, s(z0))))
   A__SEL(s(sel(x0, 0)), cons(x2, x3)) -> c3(A__SEL(a__sel(mark(x0), 0), mark(x3)), MARK(sel(x0, 0)))
   A__SEL(s(sel(from(z0), x1)), cons(x2, x3)) -> c3(A__SEL(a__sel(a__from(mark(z0)), mark(x1)), mark(x3)), MARK(sel(from(z0), x1)))
   A__SEL(s(sel(sel(z0, z1), x1)), cons(x2, x3)) -> c3(A__SEL(a__sel(a__sel(mark(z0), mark(z1)), mark(x1)), mark(x3)), MARK(sel(sel(z0, z1), x1)))
   A__SEL(s(sel(cons(z0, z1), x1)), cons(x2, x3)) -> c3(A__SEL(a__sel(cons(mark(z0), z1), mark(x1)), mark(x3)), MARK(sel(cons(z0, z1), x1)))
   A__SEL(s(sel(s(z0), x1)), cons(x2, x3)) -> c3(A__SEL(a__sel(s(mark(z0)), mark(x1)), mark(x3)), MARK(sel(s(z0), x1)))
   A__SEL(s(sel(0, x1)), cons(x2, x3)) -> c3(A__SEL(a__sel(0, mark(x1)), mark(x3)), MARK(sel(0, x1)))
   A__SEL(s(sel(x0, x1)), cons(x2, s(z0))) -> c3(MARK(sel(x0, x1)))
   A__SEL(s(sel(x0, x1)), cons(x2, 0)) -> c3(MARK(sel(x0, x1)))
   A__SEL(s(sel(x0, x1)), cons(x2, x3)) -> c3(MARK(sel(x0, x1)))
   A__SEL(s(s(from(z0))), cons(x1, x2)) -> c3(A__SEL(s(a__from(mark(z0))), mark(x2)), MARK(s(from(z0))))
   A__SEL(s(s(sel(z0, z1))), cons(x1, x2)) -> c3(A__SEL(s(a__sel(mark(z0), mark(z1))), mark(x2)), MARK(s(sel(z0, z1))))
   A__SEL(s(s(cons(z0, z1))), cons(x1, x2)) -> c3(A__SEL(s(cons(mark(z0), z1)), mark(x2)), MARK(s(cons(z0, z1))))
   A__SEL(s(s(s(z0))), cons(x1, x2)) -> c3(A__SEL(s(s(mark(z0))), mark(x2)), MARK(s(s(z0))))
   A__SEL(s(s(0)), cons(x1, x2)) -> c3(A__SEL(s(0), mark(x2)), MARK(s(0)))
   A__SEL(s(s(x0)), cons(x1, x2)) -> c3(MARK(s(x0)))
   A__SEL(s(s(x0)), cons(x1, s(z0))) -> c3(MARK(s(x0)))
   A__SEL(s(s(x0)), cons(x1, 0)) -> c3(MARK(s(x0)))
   A__SEL(s(x0), cons(x1, from(x2))) -> c4(A__SEL(mark(x0), cons(mark(mark(x2)), from(s(mark(x2))))), MARK(from(x2)))
   A__SEL(s(x0), cons(x1, from(from(z0)))) -> c4(A__SEL(mark(x0), a__from(a__from(mark(z0)))), MARK(from(from(z0))))
   A__SEL(s(x0), cons(x1, from(sel(z0, z1)))) -> c4(A__SEL(mark(x0), a__from(a__sel(mark(z0), mark(z1)))), MARK(from(sel(z0, z1))))
   A__SEL(s(x0), cons(x1, from(cons(z0, z1)))) -> c4(A__SEL(mark(x0), a__from(cons(mark(z0), z1))), MARK(from(cons(z0, z1))))
   A__SEL(s(x0), cons(x1, from(s(z0)))) -> c4(A__SEL(mark(x0), a__from(s(mark(z0)))), MARK(from(s(z0))))
   A__SEL(s(x0), cons(x1, from(0))) -> c4(A__SEL(mark(x0), a__from(0)), MARK(from(0)))
   A__SEL(s(from(z0)), cons(x1, from(x2))) -> c4(A__SEL(a__from(mark(z0)), a__from(mark(x2))), MARK(from(x2)))
   A__SEL(s(sel(z0, z1)), cons(x1, from(x2))) -> c4(A__SEL(a__sel(mark(z0), mark(z1)), a__from(mark(x2))), MARK(from(x2)))
   A__SEL(s(s(z0)), cons(x1, from(x2))) -> c4(A__SEL(s(mark(z0)), a__from(mark(x2))), MARK(from(x2)))
   A__SEL(s(0), cons(x1, from(x2))) -> c4(A__SEL(0, a__from(mark(x2))), MARK(from(x2)))
   A__SEL(s(x0), cons(x1, from(x2))) -> c4(MARK(from(x2)))
   A__SEL(s(cons(z0, z1)), cons(x1, from(x2))) -> c4(MARK(from(x2)))
   A__SEL(s(x0), cons(x1, sel(x2, from(z0)))) -> c4(A__SEL(mark(x0), a__sel(mark(x2), a__from(mark(z0)))), MARK(sel(x2, from(z0))))
   A__SEL(s(x0), cons(x1, sel(x2, sel(z0, z1)))) -> c4(A__SEL(mark(x0), a__sel(mark(x2), a__sel(mark(z0), mark(z1)))), MARK(sel(x2, sel(z0, z1))))
   A__SEL(s(x0), cons(x1, sel(x2, cons(z0, z1)))) -> c4(A__SEL(mark(x0), a__sel(mark(x2), cons(mark(z0), z1))), MARK(sel(x2, cons(z0, z1))))
   A__SEL(s(x0), cons(x1, sel(x2, s(z0)))) -> c4(A__SEL(mark(x0), a__sel(mark(x2), s(mark(z0)))), MARK(sel(x2, s(z0))))
   A__SEL(s(x0), cons(x1, sel(x2, 0))) -> c4(A__SEL(mark(x0), a__sel(mark(x2), 0)), MARK(sel(x2, 0)))
   A__SEL(s(x0), cons(x1, sel(from(z0), x3))) -> c4(A__SEL(mark(x0), a__sel(a__from(mark(z0)), mark(x3))), MARK(sel(from(z0), x3)))
   A__SEL(s(x0), cons(x1, sel(sel(z0, z1), x3))) -> c4(A__SEL(mark(x0), a__sel(a__sel(mark(z0), mark(z1)), mark(x3))), MARK(sel(sel(z0, z1), x3)))
   A__SEL(s(x0), cons(x1, sel(cons(z0, z1), x3))) -> c4(A__SEL(mark(x0), a__sel(cons(mark(z0), z1), mark(x3))), MARK(sel(cons(z0, z1), x3)))
   A__SEL(s(x0), cons(x1, sel(s(z0), x3))) -> c4(A__SEL(mark(x0), a__sel(s(mark(z0)), mark(x3))), MARK(sel(s(z0), x3)))
   A__SEL(s(x0), cons(x1, sel(0, x3))) -> c4(A__SEL(mark(x0), a__sel(0, mark(x3))), MARK(sel(0, x3)))
   A__SEL(s(from(z0)), cons(x1, sel(x2, x3))) -> c4(A__SEL(a__from(mark(z0)), a__sel(mark(x2), mark(x3))), MARK(sel(x2, x3)))
   A__SEL(s(sel(z0, z1)), cons(x1, sel(x2, x3))) -> c4(A__SEL(a__sel(mark(z0), mark(z1)), a__sel(mark(x2), mark(x3))), MARK(sel(x2, x3)))
   A__SEL(s(s(z0)), cons(x1, sel(x2, x3))) -> c4(A__SEL(s(mark(z0)), a__sel(mark(x2), mark(x3))), MARK(sel(x2, x3)))
   A__SEL(s(0), cons(x1, sel(x2, x3))) -> c4(A__SEL(0, a__sel(mark(x2), mark(x3))), MARK(sel(x2, x3)))
   A__SEL(s(x0), cons(x1, sel(x2, x3))) -> c4(MARK(sel(x2, x3)))
   A__SEL(s(cons(z0, z1)), cons(x1, sel(x2, x3))) -> c4(MARK(sel(x2, x3)))
   A__SEL(s(x0), cons(x1, cons(from(z0), x3))) -> c4(A__SEL(mark(x0), cons(a__from(mark(z0)), x3)), MARK(cons(from(z0), x3)))
   A__SEL(s(x0), cons(x1, cons(sel(z0, z1), x3))) -> c4(A__SEL(mark(x0), cons(a__sel(mark(z0), mark(z1)), x3)), MARK(cons(sel(z0, z1), x3)))
   A__SEL(s(x0), cons(x1, cons(cons(z0, z1), x3))) -> c4(A__SEL(mark(x0), cons(cons(mark(z0), z1), x3)), MARK(cons(cons(z0, z1), x3)))
   A__SEL(s(x0), cons(x1, cons(s(z0), x3))) -> c4(A__SEL(mark(x0), cons(s(mark(z0)), x3)), MARK(cons(s(z0), x3)))
   A__SEL(s(x0), cons(x1, cons(0, x3))) -> c4(A__SEL(mark(x0), cons(0, x3)), MARK(cons(0, x3)))
   A__SEL(s(from(z0)), cons(x1, cons(x2, x3))) -> c4(A__SEL(a__from(mark(z0)), cons(mark(x2), x3)), MARK(cons(x2, x3)))
   A__SEL(s(sel(z0, z1)), cons(x1, cons(x2, x3))) -> c4(A__SEL(a__sel(mark(z0), mark(z1)), cons(mark(x2), x3)), MARK(cons(x2, x3)))
   A__SEL(s(s(z0)), cons(x1, cons(x2, x3))) -> c4(A__SEL(s(mark(z0)), cons(mark(x2), x3)), MARK(cons(x2, x3)))
   A__SEL(s(0), cons(x1, cons(x2, x3))) -> c4(A__SEL(0, cons(mark(x2), x3)), MARK(cons(x2, x3)))
   A__SEL(s(x0), cons(x1, cons(x2, x3))) -> c4(MARK(cons(x2, x3)))
   A__SEL(s(cons(z0, z1)), cons(x1, cons(x2, x3))) -> c4(MARK(cons(x2, x3)))
   A__SEL(s(from(from(z0))), cons(x1, x2)) -> c4(A__SEL(a__from(a__from(mark(z0))), mark(x2)), MARK(x2))
   A__SEL(s(from(sel(z0, z1))), cons(x1, x2)) -> c4(A__SEL(a__from(a__sel(mark(z0), mark(z1))), mark(x2)), MARK(x2))
   A__SEL(s(from(cons(z0, z1))), cons(x1, x2)) -> c4(A__SEL(a__from(cons(mark(z0), z1)), mark(x2)), MARK(x2))
   A__SEL(s(from(s(z0))), cons(x1, x2)) -> c4(A__SEL(a__from(s(mark(z0))), mark(x2)), MARK(x2))
   A__SEL(s(from(0)), cons(x1, x2)) -> c4(A__SEL(a__from(0), mark(x2)), MARK(x2))
   A__SEL(s(from(x0)), cons(x1, s(z0))) -> c4(MARK(s(z0)))
   A__SEL(s(from(x0)), cons(x1, x2)) -> c4(MARK(x2))
   A__SEL(s(sel(x0, x1)), cons(x2, s(z0))) -> c4(A__SEL(a__sel(mark(x0), mark(x1)), s(mark(z0))), MARK(s(z0)))
   A__SEL(s(sel(x0, x1)), cons(x2, 0)) -> c4(A__SEL(a__sel(mark(x0), mark(x1)), 0), MARK(0))
   A__SEL(s(sel(x0, x1)), cons(x2, x3)) -> c4(A__SEL(sel(mark(x0), mark(x1)), mark(x3)), MARK(x3))
   A__SEL(s(sel(x0, from(z0))), cons(x2, x3)) -> c4(A__SEL(a__sel(mark(x0), a__from(mark(z0))), mark(x3)), MARK(x3))
   A__SEL(s(sel(x0, sel(z0, z1))), cons(x2, x3)) -> c4(A__SEL(a__sel(mark(x0), a__sel(mark(z0), mark(z1))), mark(x3)), MARK(x3))
   A__SEL(s(sel(x0, cons(z0, z1))), cons(x2, x3)) -> c4(A__SEL(a__sel(mark(x0), cons(mark(z0), z1)), mark(x3)), MARK(x3))
   A__SEL(s(sel(x0, s(z0))), cons(x2, x3)) -> c4(A__SEL(a__sel(mark(x0), s(mark(z0))), mark(x3)), MARK(x3))
   A__SEL(s(sel(x0, 0)), cons(x2, x3)) -> c4(A__SEL(a__sel(mark(x0), 0), mark(x3)), MARK(x3))
   A__SEL(s(sel(from(z0), x1)), cons(x2, x3)) -> c4(A__SEL(a__sel(a__from(mark(z0)), mark(x1)), mark(x3)), MARK(x3))
   A__SEL(s(sel(sel(z0, z1), x1)), cons(x2, x3)) -> c4(A__SEL(a__sel(a__sel(mark(z0), mark(z1)), mark(x1)), mark(x3)), MARK(x3))
   A__SEL(s(sel(cons(z0, z1), x1)), cons(x2, x3)) -> c4(A__SEL(a__sel(cons(mark(z0), z1), mark(x1)), mark(x3)), MARK(x3))
   A__SEL(s(sel(s(z0), x1)), cons(x2, x3)) -> c4(A__SEL(a__sel(s(mark(z0)), mark(x1)), mark(x3)), MARK(x3))
   A__SEL(s(sel(0, x1)), cons(x2, x3)) -> c4(A__SEL(a__sel(0, mark(x1)), mark(x3)), MARK(x3))
S tuples:
   A__FROM(z0) -> c(MARK(z0))
   A__SEL(0, cons(z0, z1)) -> c2(MARK(z0))
   MARK(from(z0)) -> c6(A__FROM(mark(z0)), MARK(z0))
   MARK(cons(z0, z1)) -> c9(MARK(z0))
   MARK(s(z0)) -> c10(MARK(z0))
   A__SEL(s(x0), cons(x1, s(z0))) -> c3(MARK(x0))
   A__SEL(s(x0), cons(x1, 0)) -> c3(MARK(x0))
   A__SEL(s(cons(z0, z1)), cons(x1, x2)) -> c3(MARK(cons(z0, z1)))
   A__SEL(s(s(z0)), cons(x1, x2)) -> c4(A__SEL(s(mark(z0)), mark(x2)), MARK(x2))
   A__SEL(s(0), cons(x1, x2)) -> c4(A__SEL(0, mark(x2)), MARK(x2))
   A__SEL(s(x0), cons(x1, s(z0))) -> c4(MARK(s(z0)))
   A__SEL(s(cons(z0, z1)), cons(x1, x2)) -> c4(MARK(x2))
   MARK(sel(x0, from(z0))) -> c7(A__SEL(mark(x0), a__from(mark(z0))), MARK(x0))
   MARK(sel(x0, sel(z0, z1))) -> c7(A__SEL(mark(x0), a__sel(mark(z0), mark(z1))), MARK(x0))
   MARK(sel(x0, cons(z0, z1))) -> c7(A__SEL(mark(x0), cons(mark(z0), z1)), MARK(x0))
   MARK(sel(from(z0), x1)) -> c7(A__SEL(a__from(mark(z0)), mark(x1)), MARK(from(z0)))
   MARK(sel(sel(z0, z1), x1)) -> c7(A__SEL(a__sel(mark(z0), mark(z1)), mark(x1)), MARK(sel(z0, z1)))
   MARK(sel(s(z0), x1)) -> c7(A__SEL(s(mark(z0)), mark(x1)), MARK(s(z0)))
   MARK(sel(x0, s(z0))) -> c7(MARK(x0))
   MARK(sel(x0, 0)) -> c7(MARK(x0))
   MARK(sel(cons(z0, z1), x1)) -> c7(MARK(cons(z0, z1)))
   MARK(sel(0, x1)) -> c7(A__SEL(0, mark(x1)))
   MARK(sel(x0, from(z0))) -> c8(A__SEL(mark(x0), a__from(mark(z0))), MARK(from(z0)))
   MARK(sel(x0, sel(z0, z1))) -> c8(A__SEL(mark(x0), a__sel(mark(z0), mark(z1))), MARK(sel(z0, z1)))
   MARK(sel(x0, cons(z0, z1))) -> c8(A__SEL(mark(x0), cons(mark(z0), z1)), MARK(cons(z0, z1)))
   MARK(sel(from(z0), x1)) -> c8(A__SEL(a__from(mark(z0)), mark(x1)), MARK(x1))
   MARK(sel(sel(z0, z1), x1)) -> c8(A__SEL(a__sel(mark(z0), mark(z1)), mark(x1)), MARK(x1))
   MARK(sel(s(z0), x1)) -> c8(A__SEL(s(mark(z0)), mark(x1)), MARK(x1))
   MARK(sel(0, x1)) -> c8(A__SEL(0, mark(x1)), MARK(x1))
   MARK(sel(x0, s(z0))) -> c8(MARK(s(z0)))
   MARK(sel(cons(z0, z1), x1)) -> c8(MARK(x1))
   A__SEL(s(x0), cons(x1, from(x2))) -> c3(A__SEL(mark(x0), cons(mark(mark(x2)), from(s(mark(x2))))), MARK(x0))
   A__SEL(s(x0), cons(x1, from(from(z0)))) -> c3(A__SEL(mark(x0), a__from(a__from(mark(z0)))), MARK(x0))
   A__SEL(s(x0), cons(x1, from(sel(z0, z1)))) -> c3(A__SEL(mark(x0), a__from(a__sel(mark(z0), mark(z1)))), MARK(x0))
   A__SEL(s(x0), cons(x1, from(cons(z0, z1)))) -> c3(A__SEL(mark(x0), a__from(cons(mark(z0), z1))), MARK(x0))
   A__SEL(s(x0), cons(x1, from(s(z0)))) -> c3(A__SEL(mark(x0), a__from(s(mark(z0)))), MARK(x0))
   A__SEL(s(x0), cons(x1, from(0))) -> c3(A__SEL(mark(x0), a__from(0)), MARK(x0))
   A__SEL(s(from(z0)), cons(x1, from(x2))) -> c3(A__SEL(a__from(mark(z0)), a__from(mark(x2))), MARK(from(z0)))
   A__SEL(s(sel(z0, z1)), cons(x1, from(x2))) -> c3(A__SEL(a__sel(mark(z0), mark(z1)), a__from(mark(x2))), MARK(sel(z0, z1)))
   A__SEL(s(s(z0)), cons(x1, from(x2))) -> c3(A__SEL(s(mark(z0)), a__from(mark(x2))), MARK(s(z0)))
   A__SEL(s(x0), cons(x1, from(x2))) -> c3(MARK(x0))
   A__SEL(s(cons(z0, z1)), cons(x1, from(x2))) -> c3(MARK(cons(z0, z1)))
   A__SEL(s(0), cons(x1, from(x2))) -> c3(A__SEL(0, a__from(mark(x2))))
   A__SEL(s(x0), cons(x1, sel(x2, from(z0)))) -> c3(A__SEL(mark(x0), a__sel(mark(x2), a__from(mark(z0)))), MARK(x0))
   A__SEL(s(x0), cons(x1, sel(x2, sel(z0, z1)))) -> c3(A__SEL(mark(x0), a__sel(mark(x2), a__sel(mark(z0), mark(z1)))), MARK(x0))
   A__SEL(s(x0), cons(x1, sel(x2, cons(z0, z1)))) -> c3(A__SEL(mark(x0), a__sel(mark(x2), cons(mark(z0), z1))), MARK(x0))
   A__SEL(s(x0), cons(x1, sel(x2, s(z0)))) -> c3(A__SEL(mark(x0), a__sel(mark(x2), s(mark(z0)))), MARK(x0))
   A__SEL(s(x0), cons(x1, sel(x2, 0))) -> c3(A__SEL(mark(x0), a__sel(mark(x2), 0)), MARK(x0))
   A__SEL(s(x0), cons(x1, sel(from(z0), x3))) -> c3(A__SEL(mark(x0), a__sel(a__from(mark(z0)), mark(x3))), MARK(x0))
   A__SEL(s(x0), cons(x1, sel(sel(z0, z1), x3))) -> c3(A__SEL(mark(x0), a__sel(a__sel(mark(z0), mark(z1)), mark(x3))), MARK(x0))
   A__SEL(s(x0), cons(x1, sel(cons(z0, z1), x3))) -> c3(A__SEL(mark(x0), a__sel(cons(mark(z0), z1), mark(x3))), MARK(x0))
   A__SEL(s(x0), cons(x1, sel(s(z0), x3))) -> c3(A__SEL(mark(x0), a__sel(s(mark(z0)), mark(x3))), MARK(x0))
   A__SEL(s(x0), cons(x1, sel(0, x3))) -> c3(A__SEL(mark(x0), a__sel(0, mark(x3))), MARK(x0))
   A__SEL(s(from(z0)), cons(x1, sel(x2, x3))) -> c3(A__SEL(a__from(mark(z0)), a__sel(mark(x2), mark(x3))), MARK(from(z0)))
   A__SEL(s(sel(z0, z1)), cons(x1, sel(x2, x3))) -> c3(A__SEL(a__sel(mark(z0), mark(z1)), a__sel(mark(x2), mark(x3))), MARK(sel(z0, z1)))
   A__SEL(s(s(z0)), cons(x1, sel(x2, x3))) -> c3(A__SEL(s(mark(z0)), a__sel(mark(x2), mark(x3))), MARK(s(z0)))
   A__SEL(s(x0), cons(x1, sel(x2, x3))) -> c3(MARK(x0))
   A__SEL(s(cons(z0, z1)), cons(x1, sel(x2, x3))) -> c3(MARK(cons(z0, z1)))
   A__SEL(s(0), cons(x1, sel(x2, x3))) -> c3(A__SEL(0, a__sel(mark(x2), mark(x3))))
   A__SEL(s(x0), cons(x1, cons(from(z0), x3))) -> c3(A__SEL(mark(x0), cons(a__from(mark(z0)), x3)), MARK(x0))
   A__SEL(s(x0), cons(x1, cons(sel(z0, z1), x3))) -> c3(A__SEL(mark(x0), cons(a__sel(mark(z0), mark(z1)), x3)), MARK(x0))
   A__SEL(s(x0), cons(x1, cons(cons(z0, z1), x3))) -> c3(A__SEL(mark(x0), cons(cons(mark(z0), z1), x3)), MARK(x0))
   A__SEL(s(x0), cons(x1, cons(s(z0), x3))) -> c3(A__SEL(mark(x0), cons(s(mark(z0)), x3)), MARK(x0))
   A__SEL(s(x0), cons(x1, cons(0, x3))) -> c3(A__SEL(mark(x0), cons(0, x3)), MARK(x0))
   A__SEL(s(from(z0)), cons(x1, cons(x2, x3))) -> c3(A__SEL(a__from(mark(z0)), cons(mark(x2), x3)), MARK(from(z0)))
   A__SEL(s(sel(z0, z1)), cons(x1, cons(x2, x3))) -> c3(A__SEL(a__sel(mark(z0), mark(z1)), cons(mark(x2), x3)), MARK(sel(z0, z1)))
   A__SEL(s(s(z0)), cons(x1, cons(x2, x3))) -> c3(A__SEL(s(mark(z0)), cons(mark(x2), x3)), MARK(s(z0)))
   A__SEL(s(cons(z0, z1)), cons(x1, cons(x2, x3))) -> c3(MARK(cons(z0, z1)))
   A__SEL(s(0), cons(x1, cons(x2, x3))) -> c3(A__SEL(0, cons(mark(x2), x3)))
   A__SEL(s(from(from(z0))), cons(x1, x2)) -> c3(A__SEL(a__from(a__from(mark(z0))), mark(x2)), MARK(from(from(z0))))
   A__SEL(s(from(sel(z0, z1))), cons(x1, x2)) -> c3(A__SEL(a__from(a__sel(mark(z0), mark(z1))), mark(x2)), MARK(from(sel(z0, z1))))
   A__SEL(s(from(cons(z0, z1))), cons(x1, x2)) -> c3(A__SEL(a__from(cons(mark(z0), z1)), mark(x2)), MARK(from(cons(z0, z1))))
   A__SEL(s(from(s(z0))), cons(x1, x2)) -> c3(A__SEL(a__from(s(mark(z0))), mark(x2)), MARK(from(s(z0))))
   A__SEL(s(from(0)), cons(x1, x2)) -> c3(A__SEL(a__from(0), mark(x2)), MARK(from(0)))
   A__SEL(s(from(x0)), cons(x1, x2)) -> c3(MARK(from(x0)))
   A__SEL(s(from(x0)), cons(x1, s(z0))) -> c3(MARK(from(x0)))
   A__SEL(s(from(x0)), cons(x1, 0)) -> c3(MARK(from(x0)))
   A__SEL(s(sel(x0, from(z0))), cons(x2, x3)) -> c3(A__SEL(a__sel(mark(x0), a__from(mark(z0))), mark(x3)), MARK(sel(x0, from(z0))))
   A__SEL(s(sel(x0, sel(z0, z1))), cons(x2, x3)) -> c3(A__SEL(a__sel(mark(x0), a__sel(mark(z0), mark(z1))), mark(x3)), MARK(sel(x0, sel(z0, z1))))
   A__SEL(s(sel(x0, cons(z0, z1))), cons(x2, x3)) -> c3(A__SEL(a__sel(mark(x0), cons(mark(z0), z1)), mark(x3)), MARK(sel(x0, cons(z0, z1))))
   A__SEL(s(sel(x0, s(z0))), cons(x2, x3)) -> c3(A__SEL(a__sel(mark(x0), s(mark(z0))), mark(x3)), MARK(sel(x0, s(z0))))
   A__SEL(s(sel(x0, 0)), cons(x2, x3)) -> c3(A__SEL(a__sel(mark(x0), 0), mark(x3)), MARK(sel(x0, 0)))
   A__SEL(s(sel(from(z0), x1)), cons(x2, x3)) -> c3(A__SEL(a__sel(a__from(mark(z0)), mark(x1)), mark(x3)), MARK(sel(from(z0), x1)))
   A__SEL(s(sel(sel(z0, z1), x1)), cons(x2, x3)) -> c3(A__SEL(a__sel(a__sel(mark(z0), mark(z1)), mark(x1)), mark(x3)), MARK(sel(sel(z0, z1), x1)))
   A__SEL(s(sel(cons(z0, z1), x1)), cons(x2, x3)) -> c3(A__SEL(a__sel(cons(mark(z0), z1), mark(x1)), mark(x3)), MARK(sel(cons(z0, z1), x1)))
   A__SEL(s(sel(s(z0), x1)), cons(x2, x3)) -> c3(A__SEL(a__sel(s(mark(z0)), mark(x1)), mark(x3)), MARK(sel(s(z0), x1)))
   A__SEL(s(sel(0, x1)), cons(x2, x3)) -> c3(A__SEL(a__sel(0, mark(x1)), mark(x3)), MARK(sel(0, x1)))
   A__SEL(s(sel(x0, x1)), cons(x2, s(z0))) -> c3(MARK(sel(x0, x1)))
   A__SEL(s(sel(x0, x1)), cons(x2, 0)) -> c3(MARK(sel(x0, x1)))
   A__SEL(s(sel(x0, x1)), cons(x2, x3)) -> c3(MARK(sel(x0, x1)))
   A__SEL(s(s(from(z0))), cons(x1, x2)) -> c3(A__SEL(s(a__from(mark(z0))), mark(x2)), MARK(s(from(z0))))
   A__SEL(s(s(sel(z0, z1))), cons(x1, x2)) -> c3(A__SEL(s(a__sel(mark(z0), mark(z1))), mark(x2)), MARK(s(sel(z0, z1))))
   A__SEL(s(s(cons(z0, z1))), cons(x1, x2)) -> c3(A__SEL(s(cons(mark(z0), z1)), mark(x2)), MARK(s(cons(z0, z1))))
   A__SEL(s(s(s(z0))), cons(x1, x2)) -> c3(A__SEL(s(s(mark(z0))), mark(x2)), MARK(s(s(z0))))
   A__SEL(s(s(0)), cons(x1, x2)) -> c3(A__SEL(s(0), mark(x2)), MARK(s(0)))
   A__SEL(s(s(x0)), cons(x1, x2)) -> c3(MARK(s(x0)))
   A__SEL(s(s(x0)), cons(x1, s(z0))) -> c3(MARK(s(x0)))
   A__SEL(s(s(x0)), cons(x1, 0)) -> c3(MARK(s(x0)))
   A__SEL(s(x0), cons(x1, from(x2))) -> c4(A__SEL(mark(x0), cons(mark(mark(x2)), from(s(mark(x2))))), MARK(from(x2)))
   A__SEL(s(x0), cons(x1, from(from(z0)))) -> c4(A__SEL(mark(x0), a__from(a__from(mark(z0)))), MARK(from(from(z0))))
   A__SEL(s(x0), cons(x1, from(sel(z0, z1)))) -> c4(A__SEL(mark(x0), a__from(a__sel(mark(z0), mark(z1)))), MARK(from(sel(z0, z1))))
   A__SEL(s(x0), cons(x1, from(cons(z0, z1)))) -> c4(A__SEL(mark(x0), a__from(cons(mark(z0), z1))), MARK(from(cons(z0, z1))))
   A__SEL(s(x0), cons(x1, from(s(z0)))) -> c4(A__SEL(mark(x0), a__from(s(mark(z0)))), MARK(from(s(z0))))
   A__SEL(s(x0), cons(x1, from(0))) -> c4(A__SEL(mark(x0), a__from(0)), MARK(from(0)))
   A__SEL(s(from(z0)), cons(x1, from(x2))) -> c4(A__SEL(a__from(mark(z0)), a__from(mark(x2))), MARK(from(x2)))
   A__SEL(s(sel(z0, z1)), cons(x1, from(x2))) -> c4(A__SEL(a__sel(mark(z0), mark(z1)), a__from(mark(x2))), MARK(from(x2)))
   A__SEL(s(s(z0)), cons(x1, from(x2))) -> c4(A__SEL(s(mark(z0)), a__from(mark(x2))), MARK(from(x2)))
   A__SEL(s(0), cons(x1, from(x2))) -> c4(A__SEL(0, a__from(mark(x2))), MARK(from(x2)))
   A__SEL(s(x0), cons(x1, from(x2))) -> c4(MARK(from(x2)))
   A__SEL(s(cons(z0, z1)), cons(x1, from(x2))) -> c4(MARK(from(x2)))
   A__SEL(s(x0), cons(x1, sel(x2, from(z0)))) -> c4(A__SEL(mark(x0), a__sel(mark(x2), a__from(mark(z0)))), MARK(sel(x2, from(z0))))
   A__SEL(s(x0), cons(x1, sel(x2, sel(z0, z1)))) -> c4(A__SEL(mark(x0), a__sel(mark(x2), a__sel(mark(z0), mark(z1)))), MARK(sel(x2, sel(z0, z1))))
   A__SEL(s(x0), cons(x1, sel(x2, cons(z0, z1)))) -> c4(A__SEL(mark(x0), a__sel(mark(x2), cons(mark(z0), z1))), MARK(sel(x2, cons(z0, z1))))
   A__SEL(s(x0), cons(x1, sel(x2, s(z0)))) -> c4(A__SEL(mark(x0), a__sel(mark(x2), s(mark(z0)))), MARK(sel(x2, s(z0))))
   A__SEL(s(x0), cons(x1, sel(x2, 0))) -> c4(A__SEL(mark(x0), a__sel(mark(x2), 0)), MARK(sel(x2, 0)))
   A__SEL(s(x0), cons(x1, sel(from(z0), x3))) -> c4(A__SEL(mark(x0), a__sel(a__from(mark(z0)), mark(x3))), MARK(sel(from(z0), x3)))
   A__SEL(s(x0), cons(x1, sel(sel(z0, z1), x3))) -> c4(A__SEL(mark(x0), a__sel(a__sel(mark(z0), mark(z1)), mark(x3))), MARK(sel(sel(z0, z1), x3)))
   A__SEL(s(x0), cons(x1, sel(cons(z0, z1), x3))) -> c4(A__SEL(mark(x0), a__sel(cons(mark(z0), z1), mark(x3))), MARK(sel(cons(z0, z1), x3)))
   A__SEL(s(x0), cons(x1, sel(s(z0), x3))) -> c4(A__SEL(mark(x0), a__sel(s(mark(z0)), mark(x3))), MARK(sel(s(z0), x3)))
   A__SEL(s(x0), cons(x1, sel(0, x3))) -> c4(A__SEL(mark(x0), a__sel(0, mark(x3))), MARK(sel(0, x3)))
   A__SEL(s(from(z0)), cons(x1, sel(x2, x3))) -> c4(A__SEL(a__from(mark(z0)), a__sel(mark(x2), mark(x3))), MARK(sel(x2, x3)))
   A__SEL(s(sel(z0, z1)), cons(x1, sel(x2, x3))) -> c4(A__SEL(a__sel(mark(z0), mark(z1)), a__sel(mark(x2), mark(x3))), MARK(sel(x2, x3)))
   A__SEL(s(s(z0)), cons(x1, sel(x2, x3))) -> c4(A__SEL(s(mark(z0)), a__sel(mark(x2), mark(x3))), MARK(sel(x2, x3)))
   A__SEL(s(0), cons(x1, sel(x2, x3))) -> c4(A__SEL(0, a__sel(mark(x2), mark(x3))), MARK(sel(x2, x3)))
   A__SEL(s(x0), cons(x1, sel(x2, x3))) -> c4(MARK(sel(x2, x3)))
   A__SEL(s(cons(z0, z1)), cons(x1, sel(x2, x3))) -> c4(MARK(sel(x2, x3)))
   A__SEL(s(x0), cons(x1, cons(from(z0), x3))) -> c4(A__SEL(mark(x0), cons(a__from(mark(z0)), x3)), MARK(cons(from(z0), x3)))
   A__SEL(s(x0), cons(x1, cons(sel(z0, z1), x3))) -> c4(A__SEL(mark(x0), cons(a__sel(mark(z0), mark(z1)), x3)), MARK(cons(sel(z0, z1), x3)))
   A__SEL(s(x0), cons(x1, cons(cons(z0, z1), x3))) -> c4(A__SEL(mark(x0), cons(cons(mark(z0), z1), x3)), MARK(cons(cons(z0, z1), x3)))
   A__SEL(s(x0), cons(x1, cons(s(z0), x3))) -> c4(A__SEL(mark(x0), cons(s(mark(z0)), x3)), MARK(cons(s(z0), x3)))
   A__SEL(s(x0), cons(x1, cons(0, x3))) -> c4(A__SEL(mark(x0), cons(0, x3)), MARK(cons(0, x3)))
   A__SEL(s(from(z0)), cons(x1, cons(x2, x3))) -> c4(A__SEL(a__from(mark(z0)), cons(mark(x2), x3)), MARK(cons(x2, x3)))
   A__SEL(s(sel(z0, z1)), cons(x1, cons(x2, x3))) -> c4(A__SEL(a__sel(mark(z0), mark(z1)), cons(mark(x2), x3)), MARK(cons(x2, x3)))
   A__SEL(s(s(z0)), cons(x1, cons(x2, x3))) -> c4(A__SEL(s(mark(z0)), cons(mark(x2), x3)), MARK(cons(x2, x3)))
   A__SEL(s(0), cons(x1, cons(x2, x3))) -> c4(A__SEL(0, cons(mark(x2), x3)), MARK(cons(x2, x3)))
   A__SEL(s(x0), cons(x1, cons(x2, x3))) -> c4(MARK(cons(x2, x3)))
   A__SEL(s(cons(z0, z1)), cons(x1, cons(x2, x3))) -> c4(MARK(cons(x2, x3)))
   A__SEL(s(from(from(z0))), cons(x1, x2)) -> c4(A__SEL(a__from(a__from(mark(z0))), mark(x2)), MARK(x2))
   A__SEL(s(from(sel(z0, z1))), cons(x1, x2)) -> c4(A__SEL(a__from(a__sel(mark(z0), mark(z1))), mark(x2)), MARK(x2))
   A__SEL(s(from(cons(z0, z1))), cons(x1, x2)) -> c4(A__SEL(a__from(cons(mark(z0), z1)), mark(x2)), MARK(x2))
   A__SEL(s(from(s(z0))), cons(x1, x2)) -> c4(A__SEL(a__from(s(mark(z0))), mark(x2)), MARK(x2))
   A__SEL(s(from(0)), cons(x1, x2)) -> c4(A__SEL(a__from(0), mark(x2)), MARK(x2))
   A__SEL(s(from(x0)), cons(x1, s(z0))) -> c4(MARK(s(z0)))
   A__SEL(s(from(x0)), cons(x1, x2)) -> c4(MARK(x2))
   A__SEL(s(sel(x0, x1)), cons(x2, s(z0))) -> c4(A__SEL(a__sel(mark(x0), mark(x1)), s(mark(z0))), MARK(s(z0)))
   A__SEL(s(sel(x0, x1)), cons(x2, 0)) -> c4(A__SEL(a__sel(mark(x0), mark(x1)), 0), MARK(0))
   A__SEL(s(sel(x0, x1)), cons(x2, x3)) -> c4(A__SEL(sel(mark(x0), mark(x1)), mark(x3)), MARK(x3))
   A__SEL(s(sel(x0, from(z0))), cons(x2, x3)) -> c4(A__SEL(a__sel(mark(x0), a__from(mark(z0))), mark(x3)), MARK(x3))
   A__SEL(s(sel(x0, sel(z0, z1))), cons(x2, x3)) -> c4(A__SEL(a__sel(mark(x0), a__sel(mark(z0), mark(z1))), mark(x3)), MARK(x3))
   A__SEL(s(sel(x0, cons(z0, z1))), cons(x2, x3)) -> c4(A__SEL(a__sel(mark(x0), cons(mark(z0), z1)), mark(x3)), MARK(x3))
   A__SEL(s(sel(x0, s(z0))), cons(x2, x3)) -> c4(A__SEL(a__sel(mark(x0), s(mark(z0))), mark(x3)), MARK(x3))
   A__SEL(s(sel(x0, 0)), cons(x2, x3)) -> c4(A__SEL(a__sel(mark(x0), 0), mark(x3)), MARK(x3))
   A__SEL(s(sel(from(z0), x1)), cons(x2, x3)) -> c4(A__SEL(a__sel(a__from(mark(z0)), mark(x1)), mark(x3)), MARK(x3))
   A__SEL(s(sel(sel(z0, z1), x1)), cons(x2, x3)) -> c4(A__SEL(a__sel(a__sel(mark(z0), mark(z1)), mark(x1)), mark(x3)), MARK(x3))
   A__SEL(s(sel(cons(z0, z1), x1)), cons(x2, x3)) -> c4(A__SEL(a__sel(cons(mark(z0), z1), mark(x1)), mark(x3)), MARK(x3))
   A__SEL(s(sel(s(z0), x1)), cons(x2, x3)) -> c4(A__SEL(a__sel(s(mark(z0)), mark(x1)), mark(x3)), MARK(x3))
   A__SEL(s(sel(0, x1)), cons(x2, x3)) -> c4(A__SEL(a__sel(0, mark(x1)), mark(x3)), MARK(x3))
K tuples:none
Defined Rule Symbols:   a__from_1, a__sel_2, mark_1

Defined Pair Symbols:   A__FROM_1, A__SEL_2, MARK_1

Compound Symbols:   c_1, c2_1, c6_2, c9_1, c10_1, c3_1, c4_2, c4_1, c7_2, c7_1, c8_2, c8_1, c3_2


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

(125) CdtLeafRemovalProof (BOTH BOUNDS(ID, ID))
Removed 1 trailing nodes:
   A__SEL(s(sel(x0, x1)), cons(x2, 0)) -> c4(A__SEL(a__sel(mark(x0), mark(x1)), 0), MARK(0))

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

(126)
Obligation:
Complexity Dependency Tuples Problem

Rules:
   a__from(z0) -> cons(mark(z0), from(s(z0)))
   a__from(z0) -> from(z0)
   a__sel(0, cons(z0, z1)) -> mark(z0)
   a__sel(s(z0), cons(z1, z2)) -> a__sel(mark(z0), mark(z2))
   a__sel(z0, z1) -> sel(z0, z1)
   mark(from(z0)) -> a__from(mark(z0))
   mark(sel(z0, z1)) -> a__sel(mark(z0), mark(z1))
   mark(cons(z0, z1)) -> cons(mark(z0), z1)
   mark(s(z0)) -> s(mark(z0))
   mark(0) -> 0
Tuples:
   A__FROM(z0) -> c(MARK(z0))
   A__SEL(0, cons(z0, z1)) -> c2(MARK(z0))
   MARK(from(z0)) -> c6(A__FROM(mark(z0)), MARK(z0))
   MARK(cons(z0, z1)) -> c9(MARK(z0))
   MARK(s(z0)) -> c10(MARK(z0))
   A__SEL(s(x0), cons(x1, s(z0))) -> c3(MARK(x0))
   A__SEL(s(x0), cons(x1, 0)) -> c3(MARK(x0))
   A__SEL(s(cons(z0, z1)), cons(x1, x2)) -> c3(MARK(cons(z0, z1)))
   A__SEL(s(s(z0)), cons(x1, x2)) -> c4(A__SEL(s(mark(z0)), mark(x2)), MARK(x2))
   A__SEL(s(0), cons(x1, x2)) -> c4(A__SEL(0, mark(x2)), MARK(x2))
   A__SEL(s(x0), cons(x1, s(z0))) -> c4(MARK(s(z0)))
   A__SEL(s(cons(z0, z1)), cons(x1, x2)) -> c4(MARK(x2))
   MARK(sel(x0, from(z0))) -> c7(A__SEL(mark(x0), a__from(mark(z0))), MARK(x0))
   MARK(sel(x0, sel(z0, z1))) -> c7(A__SEL(mark(x0), a__sel(mark(z0), mark(z1))), MARK(x0))
   MARK(sel(x0, cons(z0, z1))) -> c7(A__SEL(mark(x0), cons(mark(z0), z1)), MARK(x0))
   MARK(sel(from(z0), x1)) -> c7(A__SEL(a__from(mark(z0)), mark(x1)), MARK(from(z0)))
   MARK(sel(sel(z0, z1), x1)) -> c7(A__SEL(a__sel(mark(z0), mark(z1)), mark(x1)), MARK(sel(z0, z1)))
   MARK(sel(s(z0), x1)) -> c7(A__SEL(s(mark(z0)), mark(x1)), MARK(s(z0)))
   MARK(sel(x0, s(z0))) -> c7(MARK(x0))
   MARK(sel(x0, 0)) -> c7(MARK(x0))
   MARK(sel(cons(z0, z1), x1)) -> c7(MARK(cons(z0, z1)))
   MARK(sel(0, x1)) -> c7(A__SEL(0, mark(x1)))
   MARK(sel(x0, from(z0))) -> c8(A__SEL(mark(x0), a__from(mark(z0))), MARK(from(z0)))
   MARK(sel(x0, sel(z0, z1))) -> c8(A__SEL(mark(x0), a__sel(mark(z0), mark(z1))), MARK(sel(z0, z1)))
   MARK(sel(x0, cons(z0, z1))) -> c8(A__SEL(mark(x0), cons(mark(z0), z1)), MARK(cons(z0, z1)))
   MARK(sel(from(z0), x1)) -> c8(A__SEL(a__from(mark(z0)), mark(x1)), MARK(x1))
   MARK(sel(sel(z0, z1), x1)) -> c8(A__SEL(a__sel(mark(z0), mark(z1)), mark(x1)), MARK(x1))
   MARK(sel(s(z0), x1)) -> c8(A__SEL(s(mark(z0)), mark(x1)), MARK(x1))
   MARK(sel(0, x1)) -> c8(A__SEL(0, mark(x1)), MARK(x1))
   MARK(sel(x0, s(z0))) -> c8(MARK(s(z0)))
   MARK(sel(cons(z0, z1), x1)) -> c8(MARK(x1))
   A__SEL(s(x0), cons(x1, from(x2))) -> c3(A__SEL(mark(x0), cons(mark(mark(x2)), from(s(mark(x2))))), MARK(x0))
   A__SEL(s(x0), cons(x1, from(from(z0)))) -> c3(A__SEL(mark(x0), a__from(a__from(mark(z0)))), MARK(x0))
   A__SEL(s(x0), cons(x1, from(sel(z0, z1)))) -> c3(A__SEL(mark(x0), a__from(a__sel(mark(z0), mark(z1)))), MARK(x0))
   A__SEL(s(x0), cons(x1, from(cons(z0, z1)))) -> c3(A__SEL(mark(x0), a__from(cons(mark(z0), z1))), MARK(x0))
   A__SEL(s(x0), cons(x1, from(s(z0)))) -> c3(A__SEL(mark(x0), a__from(s(mark(z0)))), MARK(x0))
   A__SEL(s(x0), cons(x1, from(0))) -> c3(A__SEL(mark(x0), a__from(0)), MARK(x0))
   A__SEL(s(from(z0)), cons(x1, from(x2))) -> c3(A__SEL(a__from(mark(z0)), a__from(mark(x2))), MARK(from(z0)))
   A__SEL(s(sel(z0, z1)), cons(x1, from(x2))) -> c3(A__SEL(a__sel(mark(z0), mark(z1)), a__from(mark(x2))), MARK(sel(z0, z1)))
   A__SEL(s(s(z0)), cons(x1, from(x2))) -> c3(A__SEL(s(mark(z0)), a__from(mark(x2))), MARK(s(z0)))
   A__SEL(s(x0), cons(x1, from(x2))) -> c3(MARK(x0))
   A__SEL(s(cons(z0, z1)), cons(x1, from(x2))) -> c3(MARK(cons(z0, z1)))
   A__SEL(s(0), cons(x1, from(x2))) -> c3(A__SEL(0, a__from(mark(x2))))
   A__SEL(s(x0), cons(x1, sel(x2, from(z0)))) -> c3(A__SEL(mark(x0), a__sel(mark(x2), a__from(mark(z0)))), MARK(x0))
   A__SEL(s(x0), cons(x1, sel(x2, sel(z0, z1)))) -> c3(A__SEL(mark(x0), a__sel(mark(x2), a__sel(mark(z0), mark(z1)))), MARK(x0))
   A__SEL(s(x0), cons(x1, sel(x2, cons(z0, z1)))) -> c3(A__SEL(mark(x0), a__sel(mark(x2), cons(mark(z0), z1))), MARK(x0))
   A__SEL(s(x0), cons(x1, sel(x2, s(z0)))) -> c3(A__SEL(mark(x0), a__sel(mark(x2), s(mark(z0)))), MARK(x0))
   A__SEL(s(x0), cons(x1, sel(x2, 0))) -> c3(A__SEL(mark(x0), a__sel(mark(x2), 0)), MARK(x0))
   A__SEL(s(x0), cons(x1, sel(from(z0), x3))) -> c3(A__SEL(mark(x0), a__sel(a__from(mark(z0)), mark(x3))), MARK(x0))
   A__SEL(s(x0), cons(x1, sel(sel(z0, z1), x3))) -> c3(A__SEL(mark(x0), a__sel(a__sel(mark(z0), mark(z1)), mark(x3))), MARK(x0))
   A__SEL(s(x0), cons(x1, sel(cons(z0, z1), x3))) -> c3(A__SEL(mark(x0), a__sel(cons(mark(z0), z1), mark(x3))), MARK(x0))
   A__SEL(s(x0), cons(x1, sel(s(z0), x3))) -> c3(A__SEL(mark(x0), a__sel(s(mark(z0)), mark(x3))), MARK(x0))
   A__SEL(s(x0), cons(x1, sel(0, x3))) -> c3(A__SEL(mark(x0), a__sel(0, mark(x3))), MARK(x0))
   A__SEL(s(from(z0)), cons(x1, sel(x2, x3))) -> c3(A__SEL(a__from(mark(z0)), a__sel(mark(x2), mark(x3))), MARK(from(z0)))
   A__SEL(s(sel(z0, z1)), cons(x1, sel(x2, x3))) -> c3(A__SEL(a__sel(mark(z0), mark(z1)), a__sel(mark(x2), mark(x3))), MARK(sel(z0, z1)))
   A__SEL(s(s(z0)), cons(x1, sel(x2, x3))) -> c3(A__SEL(s(mark(z0)), a__sel(mark(x2), mark(x3))), MARK(s(z0)))
   A__SEL(s(x0), cons(x1, sel(x2, x3))) -> c3(MARK(x0))
   A__SEL(s(cons(z0, z1)), cons(x1, sel(x2, x3))) -> c3(MARK(cons(z0, z1)))
   A__SEL(s(0), cons(x1, sel(x2, x3))) -> c3(A__SEL(0, a__sel(mark(x2), mark(x3))))
   A__SEL(s(x0), cons(x1, cons(from(z0), x3))) -> c3(A__SEL(mark(x0), cons(a__from(mark(z0)), x3)), MARK(x0))
   A__SEL(s(x0), cons(x1, cons(sel(z0, z1), x3))) -> c3(A__SEL(mark(x0), cons(a__sel(mark(z0), mark(z1)), x3)), MARK(x0))
   A__SEL(s(x0), cons(x1, cons(cons(z0, z1), x3))) -> c3(A__SEL(mark(x0), cons(cons(mark(z0), z1), x3)), MARK(x0))
   A__SEL(s(x0), cons(x1, cons(s(z0), x3))) -> c3(A__SEL(mark(x0), cons(s(mark(z0)), x3)), MARK(x0))
   A__SEL(s(x0), cons(x1, cons(0, x3))) -> c3(A__SEL(mark(x0), cons(0, x3)), MARK(x0))
   A__SEL(s(from(z0)), cons(x1, cons(x2, x3))) -> c3(A__SEL(a__from(mark(z0)), cons(mark(x2), x3)), MARK(from(z0)))
   A__SEL(s(sel(z0, z1)), cons(x1, cons(x2, x3))) -> c3(A__SEL(a__sel(mark(z0), mark(z1)), cons(mark(x2), x3)), MARK(sel(z0, z1)))
   A__SEL(s(s(z0)), cons(x1, cons(x2, x3))) -> c3(A__SEL(s(mark(z0)), cons(mark(x2), x3)), MARK(s(z0)))
   A__SEL(s(cons(z0, z1)), cons(x1, cons(x2, x3))) -> c3(MARK(cons(z0, z1)))
   A__SEL(s(0), cons(x1, cons(x2, x3))) -> c3(A__SEL(0, cons(mark(x2), x3)))
   A__SEL(s(from(from(z0))), cons(x1, x2)) -> c3(A__SEL(a__from(a__from(mark(z0))), mark(x2)), MARK(from(from(z0))))
   A__SEL(s(from(sel(z0, z1))), cons(x1, x2)) -> c3(A__SEL(a__from(a__sel(mark(z0), mark(z1))), mark(x2)), MARK(from(sel(z0, z1))))
   A__SEL(s(from(cons(z0, z1))), cons(x1, x2)) -> c3(A__SEL(a__from(cons(mark(z0), z1)), mark(x2)), MARK(from(cons(z0, z1))))
   A__SEL(s(from(s(z0))), cons(x1, x2)) -> c3(A__SEL(a__from(s(mark(z0))), mark(x2)), MARK(from(s(z0))))
   A__SEL(s(from(0)), cons(x1, x2)) -> c3(A__SEL(a__from(0), mark(x2)), MARK(from(0)))
   A__SEL(s(from(x0)), cons(x1, x2)) -> c3(MARK(from(x0)))
   A__SEL(s(from(x0)), cons(x1, s(z0))) -> c3(MARK(from(x0)))
   A__SEL(s(from(x0)), cons(x1, 0)) -> c3(MARK(from(x0)))
   A__SEL(s(sel(x0, from(z0))), cons(x2, x3)) -> c3(A__SEL(a__sel(mark(x0), a__from(mark(z0))), mark(x3)), MARK(sel(x0, from(z0))))
   A__SEL(s(sel(x0, sel(z0, z1))), cons(x2, x3)) -> c3(A__SEL(a__sel(mark(x0), a__sel(mark(z0), mark(z1))), mark(x3)), MARK(sel(x0, sel(z0, z1))))
   A__SEL(s(sel(x0, cons(z0, z1))), cons(x2, x3)) -> c3(A__SEL(a__sel(mark(x0), cons(mark(z0), z1)), mark(x3)), MARK(sel(x0, cons(z0, z1))))
   A__SEL(s(sel(x0, s(z0))), cons(x2, x3)) -> c3(A__SEL(a__sel(mark(x0), s(mark(z0))), mark(x3)), MARK(sel(x0, s(z0))))
   A__SEL(s(sel(x0, 0)), cons(x2, x3)) -> c3(A__SEL(a__sel(mark(x0), 0), mark(x3)), MARK(sel(x0, 0)))
   A__SEL(s(sel(from(z0), x1)), cons(x2, x3)) -> c3(A__SEL(a__sel(a__from(mark(z0)), mark(x1)), mark(x3)), MARK(sel(from(z0), x1)))
   A__SEL(s(sel(sel(z0, z1), x1)), cons(x2, x3)) -> c3(A__SEL(a__sel(a__sel(mark(z0), mark(z1)), mark(x1)), mark(x3)), MARK(sel(sel(z0, z1), x1)))
   A__SEL(s(sel(cons(z0, z1), x1)), cons(x2, x3)) -> c3(A__SEL(a__sel(cons(mark(z0), z1), mark(x1)), mark(x3)), MARK(sel(cons(z0, z1), x1)))
   A__SEL(s(sel(s(z0), x1)), cons(x2, x3)) -> c3(A__SEL(a__sel(s(mark(z0)), mark(x1)), mark(x3)), MARK(sel(s(z0), x1)))
   A__SEL(s(sel(0, x1)), cons(x2, x3)) -> c3(A__SEL(a__sel(0, mark(x1)), mark(x3)), MARK(sel(0, x1)))
   A__SEL(s(sel(x0, x1)), cons(x2, s(z0))) -> c3(MARK(sel(x0, x1)))
   A__SEL(s(sel(x0, x1)), cons(x2, 0)) -> c3(MARK(sel(x0, x1)))
   A__SEL(s(sel(x0, x1)), cons(x2, x3)) -> c3(MARK(sel(x0, x1)))
   A__SEL(s(s(from(z0))), cons(x1, x2)) -> c3(A__SEL(s(a__from(mark(z0))), mark(x2)), MARK(s(from(z0))))
   A__SEL(s(s(sel(z0, z1))), cons(x1, x2)) -> c3(A__SEL(s(a__sel(mark(z0), mark(z1))), mark(x2)), MARK(s(sel(z0, z1))))
   A__SEL(s(s(cons(z0, z1))), cons(x1, x2)) -> c3(A__SEL(s(cons(mark(z0), z1)), mark(x2)), MARK(s(cons(z0, z1))))
   A__SEL(s(s(s(z0))), cons(x1, x2)) -> c3(A__SEL(s(s(mark(z0))), mark(x2)), MARK(s(s(z0))))
   A__SEL(s(s(0)), cons(x1, x2)) -> c3(A__SEL(s(0), mark(x2)), MARK(s(0)))
   A__SEL(s(s(x0)), cons(x1, x2)) -> c3(MARK(s(x0)))
   A__SEL(s(s(x0)), cons(x1, s(z0))) -> c3(MARK(s(x0)))
   A__SEL(s(s(x0)), cons(x1, 0)) -> c3(MARK(s(x0)))
   A__SEL(s(x0), cons(x1, from(x2))) -> c4(A__SEL(mark(x0), cons(mark(mark(x2)), from(s(mark(x2))))), MARK(from(x2)))
   A__SEL(s(x0), cons(x1, from(from(z0)))) -> c4(A__SEL(mark(x0), a__from(a__from(mark(z0)))), MARK(from(from(z0))))
   A__SEL(s(x0), cons(x1, from(sel(z0, z1)))) -> c4(A__SEL(mark(x0), a__from(a__sel(mark(z0), mark(z1)))), MARK(from(sel(z0, z1))))
   A__SEL(s(x0), cons(x1, from(cons(z0, z1)))) -> c4(A__SEL(mark(x0), a__from(cons(mark(z0), z1))), MARK(from(cons(z0, z1))))
   A__SEL(s(x0), cons(x1, from(s(z0)))) -> c4(A__SEL(mark(x0), a__from(s(mark(z0)))), MARK(from(s(z0))))
   A__SEL(s(x0), cons(x1, from(0))) -> c4(A__SEL(mark(x0), a__from(0)), MARK(from(0)))
   A__SEL(s(from(z0)), cons(x1, from(x2))) -> c4(A__SEL(a__from(mark(z0)), a__from(mark(x2))), MARK(from(x2)))
   A__SEL(s(sel(z0, z1)), cons(x1, from(x2))) -> c4(A__SEL(a__sel(mark(z0), mark(z1)), a__from(mark(x2))), MARK(from(x2)))
   A__SEL(s(s(z0)), cons(x1, from(x2))) -> c4(A__SEL(s(mark(z0)), a__from(mark(x2))), MARK(from(x2)))
   A__SEL(s(0), cons(x1, from(x2))) -> c4(A__SEL(0, a__from(mark(x2))), MARK(from(x2)))
   A__SEL(s(x0), cons(x1, from(x2))) -> c4(MARK(from(x2)))
   A__SEL(s(cons(z0, z1)), cons(x1, from(x2))) -> c4(MARK(from(x2)))
   A__SEL(s(x0), cons(x1, sel(x2, from(z0)))) -> c4(A__SEL(mark(x0), a__sel(mark(x2), a__from(mark(z0)))), MARK(sel(x2, from(z0))))
   A__SEL(s(x0), cons(x1, sel(x2, sel(z0, z1)))) -> c4(A__SEL(mark(x0), a__sel(mark(x2), a__sel(mark(z0), mark(z1)))), MARK(sel(x2, sel(z0, z1))))
   A__SEL(s(x0), cons(x1, sel(x2, cons(z0, z1)))) -> c4(A__SEL(mark(x0), a__sel(mark(x2), cons(mark(z0), z1))), MARK(sel(x2, cons(z0, z1))))
   A__SEL(s(x0), cons(x1, sel(x2, s(z0)))) -> c4(A__SEL(mark(x0), a__sel(mark(x2), s(mark(z0)))), MARK(sel(x2, s(z0))))
   A__SEL(s(x0), cons(x1, sel(x2, 0))) -> c4(A__SEL(mark(x0), a__sel(mark(x2), 0)), MARK(sel(x2, 0)))
   A__SEL(s(x0), cons(x1, sel(from(z0), x3))) -> c4(A__SEL(mark(x0), a__sel(a__from(mark(z0)), mark(x3))), MARK(sel(from(z0), x3)))
   A__SEL(s(x0), cons(x1, sel(sel(z0, z1), x3))) -> c4(A__SEL(mark(x0), a__sel(a__sel(mark(z0), mark(z1)), mark(x3))), MARK(sel(sel(z0, z1), x3)))
   A__SEL(s(x0), cons(x1, sel(cons(z0, z1), x3))) -> c4(A__SEL(mark(x0), a__sel(cons(mark(z0), z1), mark(x3))), MARK(sel(cons(z0, z1), x3)))
   A__SEL(s(x0), cons(x1, sel(s(z0), x3))) -> c4(A__SEL(mark(x0), a__sel(s(mark(z0)), mark(x3))), MARK(sel(s(z0), x3)))
   A__SEL(s(x0), cons(x1, sel(0, x3))) -> c4(A__SEL(mark(x0), a__sel(0, mark(x3))), MARK(sel(0, x3)))
   A__SEL(s(from(z0)), cons(x1, sel(x2, x3))) -> c4(A__SEL(a__from(mark(z0)), a__sel(mark(x2), mark(x3))), MARK(sel(x2, x3)))
   A__SEL(s(sel(z0, z1)), cons(x1, sel(x2, x3))) -> c4(A__SEL(a__sel(mark(z0), mark(z1)), a__sel(mark(x2), mark(x3))), MARK(sel(x2, x3)))
   A__SEL(s(s(z0)), cons(x1, sel(x2, x3))) -> c4(A__SEL(s(mark(z0)), a__sel(mark(x2), mark(x3))), MARK(sel(x2, x3)))
   A__SEL(s(0), cons(x1, sel(x2, x3))) -> c4(A__SEL(0, a__sel(mark(x2), mark(x3))), MARK(sel(x2, x3)))
   A__SEL(s(x0), cons(x1, sel(x2, x3))) -> c4(MARK(sel(x2, x3)))
   A__SEL(s(cons(z0, z1)), cons(x1, sel(x2, x3))) -> c4(MARK(sel(x2, x3)))
   A__SEL(s(x0), cons(x1, cons(from(z0), x3))) -> c4(A__SEL(mark(x0), cons(a__from(mark(z0)), x3)), MARK(cons(from(z0), x3)))
   A__SEL(s(x0), cons(x1, cons(sel(z0, z1), x3))) -> c4(A__SEL(mark(x0), cons(a__sel(mark(z0), mark(z1)), x3)), MARK(cons(sel(z0, z1), x3)))
   A__SEL(s(x0), cons(x1, cons(cons(z0, z1), x3))) -> c4(A__SEL(mark(x0), cons(cons(mark(z0), z1), x3)), MARK(cons(cons(z0, z1), x3)))
   A__SEL(s(x0), cons(x1, cons(s(z0), x3))) -> c4(A__SEL(mark(x0), cons(s(mark(z0)), x3)), MARK(cons(s(z0), x3)))
   A__SEL(s(x0), cons(x1, cons(0, x3))) -> c4(A__SEL(mark(x0), cons(0, x3)), MARK(cons(0, x3)))
   A__SEL(s(from(z0)), cons(x1, cons(x2, x3))) -> c4(A__SEL(a__from(mark(z0)), cons(mark(x2), x3)), MARK(cons(x2, x3)))
   A__SEL(s(sel(z0, z1)), cons(x1, cons(x2, x3))) -> c4(A__SEL(a__sel(mark(z0), mark(z1)), cons(mark(x2), x3)), MARK(cons(x2, x3)))
   A__SEL(s(s(z0)), cons(x1, cons(x2, x3))) -> c4(A__SEL(s(mark(z0)), cons(mark(x2), x3)), MARK(cons(x2, x3)))
   A__SEL(s(0), cons(x1, cons(x2, x3))) -> c4(A__SEL(0, cons(mark(x2), x3)), MARK(cons(x2, x3)))
   A__SEL(s(x0), cons(x1, cons(x2, x3))) -> c4(MARK(cons(x2, x3)))
   A__SEL(s(cons(z0, z1)), cons(x1, cons(x2, x3))) -> c4(MARK(cons(x2, x3)))
   A__SEL(s(from(from(z0))), cons(x1, x2)) -> c4(A__SEL(a__from(a__from(mark(z0))), mark(x2)), MARK(x2))
   A__SEL(s(from(sel(z0, z1))), cons(x1, x2)) -> c4(A__SEL(a__from(a__sel(mark(z0), mark(z1))), mark(x2)), MARK(x2))
   A__SEL(s(from(cons(z0, z1))), cons(x1, x2)) -> c4(A__SEL(a__from(cons(mark(z0), z1)), mark(x2)), MARK(x2))
   A__SEL(s(from(s(z0))), cons(x1, x2)) -> c4(A__SEL(a__from(s(mark(z0))), mark(x2)), MARK(x2))
   A__SEL(s(from(0)), cons(x1, x2)) -> c4(A__SEL(a__from(0), mark(x2)), MARK(x2))
   A__SEL(s(from(x0)), cons(x1, s(z0))) -> c4(MARK(s(z0)))
   A__SEL(s(from(x0)), cons(x1, x2)) -> c4(MARK(x2))
   A__SEL(s(sel(x0, x1)), cons(x2, s(z0))) -> c4(A__SEL(a__sel(mark(x0), mark(x1)), s(mark(z0))), MARK(s(z0)))
   A__SEL(s(sel(x0, x1)), cons(x2, x3)) -> c4(A__SEL(sel(mark(x0), mark(x1)), mark(x3)), MARK(x3))
   A__SEL(s(sel(x0, from(z0))), cons(x2, x3)) -> c4(A__SEL(a__sel(mark(x0), a__from(mark(z0))), mark(x3)), MARK(x3))
   A__SEL(s(sel(x0, sel(z0, z1))), cons(x2, x3)) -> c4(A__SEL(a__sel(mark(x0), a__sel(mark(z0), mark(z1))), mark(x3)), MARK(x3))
   A__SEL(s(sel(x0, cons(z0, z1))), cons(x2, x3)) -> c4(A__SEL(a__sel(mark(x0), cons(mark(z0), z1)), mark(x3)), MARK(x3))
   A__SEL(s(sel(x0, s(z0))), cons(x2, x3)) -> c4(A__SEL(a__sel(mark(x0), s(mark(z0))), mark(x3)), MARK(x3))
   A__SEL(s(sel(x0, 0)), cons(x2, x3)) -> c4(A__SEL(a__sel(mark(x0), 0), mark(x3)), MARK(x3))
   A__SEL(s(sel(from(z0), x1)), cons(x2, x3)) -> c4(A__SEL(a__sel(a__from(mark(z0)), mark(x1)), mark(x3)), MARK(x3))
   A__SEL(s(sel(sel(z0, z1), x1)), cons(x2, x3)) -> c4(A__SEL(a__sel(a__sel(mark(z0), mark(z1)), mark(x1)), mark(x3)), MARK(x3))
   A__SEL(s(sel(cons(z0, z1), x1)), cons(x2, x3)) -> c4(A__SEL(a__sel(cons(mark(z0), z1), mark(x1)), mark(x3)), MARK(x3))
   A__SEL(s(sel(s(z0), x1)), cons(x2, x3)) -> c4(A__SEL(a__sel(s(mark(z0)), mark(x1)), mark(x3)), MARK(x3))
   A__SEL(s(sel(0, x1)), cons(x2, x3)) -> c4(A__SEL(a__sel(0, mark(x1)), mark(x3)), MARK(x3))
S tuples:
   A__FROM(z0) -> c(MARK(z0))
   A__SEL(0, cons(z0, z1)) -> c2(MARK(z0))
   MARK(from(z0)) -> c6(A__FROM(mark(z0)), MARK(z0))
   MARK(cons(z0, z1)) -> c9(MARK(z0))
   MARK(s(z0)) -> c10(MARK(z0))
   A__SEL(s(x0), cons(x1, s(z0))) -> c3(MARK(x0))
   A__SEL(s(x0), cons(x1, 0)) -> c3(MARK(x0))
   A__SEL(s(cons(z0, z1)), cons(x1, x2)) -> c3(MARK(cons(z0, z1)))
   A__SEL(s(s(z0)), cons(x1, x2)) -> c4(A__SEL(s(mark(z0)), mark(x2)), MARK(x2))
   A__SEL(s(0), cons(x1, x2)) -> c4(A__SEL(0, mark(x2)), MARK(x2))
   A__SEL(s(x0), cons(x1, s(z0))) -> c4(MARK(s(z0)))
   A__SEL(s(cons(z0, z1)), cons(x1, x2)) -> c4(MARK(x2))
   MARK(sel(x0, from(z0))) -> c7(A__SEL(mark(x0), a__from(mark(z0))), MARK(x0))
   MARK(sel(x0, sel(z0, z1))) -> c7(A__SEL(mark(x0), a__sel(mark(z0), mark(z1))), MARK(x0))
   MARK(sel(x0, cons(z0, z1))) -> c7(A__SEL(mark(x0), cons(mark(z0), z1)), MARK(x0))
   MARK(sel(from(z0), x1)) -> c7(A__SEL(a__from(mark(z0)), mark(x1)), MARK(from(z0)))
   MARK(sel(sel(z0, z1), x1)) -> c7(A__SEL(a__sel(mark(z0), mark(z1)), mark(x1)), MARK(sel(z0, z1)))
   MARK(sel(s(z0), x1)) -> c7(A__SEL(s(mark(z0)), mark(x1)), MARK(s(z0)))
   MARK(sel(x0, s(z0))) -> c7(MARK(x0))
   MARK(sel(x0, 0)) -> c7(MARK(x0))
   MARK(sel(cons(z0, z1), x1)) -> c7(MARK(cons(z0, z1)))
   MARK(sel(0, x1)) -> c7(A__SEL(0, mark(x1)))
   MARK(sel(x0, from(z0))) -> c8(A__SEL(mark(x0), a__from(mark(z0))), MARK(from(z0)))
   MARK(sel(x0, sel(z0, z1))) -> c8(A__SEL(mark(x0), a__sel(mark(z0), mark(z1))), MARK(sel(z0, z1)))
   MARK(sel(x0, cons(z0, z1))) -> c8(A__SEL(mark(x0), cons(mark(z0), z1)), MARK(cons(z0, z1)))
   MARK(sel(from(z0), x1)) -> c8(A__SEL(a__from(mark(z0)), mark(x1)), MARK(x1))
   MARK(sel(sel(z0, z1), x1)) -> c8(A__SEL(a__sel(mark(z0), mark(z1)), mark(x1)), MARK(x1))
   MARK(sel(s(z0), x1)) -> c8(A__SEL(s(mark(z0)), mark(x1)), MARK(x1))
   MARK(sel(0, x1)) -> c8(A__SEL(0, mark(x1)), MARK(x1))
   MARK(sel(x0, s(z0))) -> c8(MARK(s(z0)))
   MARK(sel(cons(z0, z1), x1)) -> c8(MARK(x1))
   A__SEL(s(x0), cons(x1, from(x2))) -> c3(A__SEL(mark(x0), cons(mark(mark(x2)), from(s(mark(x2))))), MARK(x0))
   A__SEL(s(x0), cons(x1, from(from(z0)))) -> c3(A__SEL(mark(x0), a__from(a__from(mark(z0)))), MARK(x0))
   A__SEL(s(x0), cons(x1, from(sel(z0, z1)))) -> c3(A__SEL(mark(x0), a__from(a__sel(mark(z0), mark(z1)))), MARK(x0))
   A__SEL(s(x0), cons(x1, from(cons(z0, z1)))) -> c3(A__SEL(mark(x0), a__from(cons(mark(z0), z1))), MARK(x0))
   A__SEL(s(x0), cons(x1, from(s(z0)))) -> c3(A__SEL(mark(x0), a__from(s(mark(z0)))), MARK(x0))
   A__SEL(s(x0), cons(x1, from(0))) -> c3(A__SEL(mark(x0), a__from(0)), MARK(x0))
   A__SEL(s(from(z0)), cons(x1, from(x2))) -> c3(A__SEL(a__from(mark(z0)), a__from(mark(x2))), MARK(from(z0)))
   A__SEL(s(sel(z0, z1)), cons(x1, from(x2))) -> c3(A__SEL(a__sel(mark(z0), mark(z1)), a__from(mark(x2))), MARK(sel(z0, z1)))
   A__SEL(s(s(z0)), cons(x1, from(x2))) -> c3(A__SEL(s(mark(z0)), a__from(mark(x2))), MARK(s(z0)))
   A__SEL(s(x0), cons(x1, from(x2))) -> c3(MARK(x0))
   A__SEL(s(cons(z0, z1)), cons(x1, from(x2))) -> c3(MARK(cons(z0, z1)))
   A__SEL(s(0), cons(x1, from(x2))) -> c3(A__SEL(0, a__from(mark(x2))))
   A__SEL(s(x0), cons(x1, sel(x2, from(z0)))) -> c3(A__SEL(mark(x0), a__sel(mark(x2), a__from(mark(z0)))), MARK(x0))
   A__SEL(s(x0), cons(x1, sel(x2, sel(z0, z1)))) -> c3(A__SEL(mark(x0), a__sel(mark(x2), a__sel(mark(z0), mark(z1)))), MARK(x0))
   A__SEL(s(x0), cons(x1, sel(x2, cons(z0, z1)))) -> c3(A__SEL(mark(x0), a__sel(mark(x2), cons(mark(z0), z1))), MARK(x0))
   A__SEL(s(x0), cons(x1, sel(x2, s(z0)))) -> c3(A__SEL(mark(x0), a__sel(mark(x2), s(mark(z0)))), MARK(x0))
   A__SEL(s(x0), cons(x1, sel(x2, 0))) -> c3(A__SEL(mark(x0), a__sel(mark(x2), 0)), MARK(x0))
   A__SEL(s(x0), cons(x1, sel(from(z0), x3))) -> c3(A__SEL(mark(x0), a__sel(a__from(mark(z0)), mark(x3))), MARK(x0))
   A__SEL(s(x0), cons(x1, sel(sel(z0, z1), x3))) -> c3(A__SEL(mark(x0), a__sel(a__sel(mark(z0), mark(z1)), mark(x3))), MARK(x0))
   A__SEL(s(x0), cons(x1, sel(cons(z0, z1), x3))) -> c3(A__SEL(mark(x0), a__sel(cons(mark(z0), z1), mark(x3))), MARK(x0))
   A__SEL(s(x0), cons(x1, sel(s(z0), x3))) -> c3(A__SEL(mark(x0), a__sel(s(mark(z0)), mark(x3))), MARK(x0))
   A__SEL(s(x0), cons(x1, sel(0, x3))) -> c3(A__SEL(mark(x0), a__sel(0, mark(x3))), MARK(x0))
   A__SEL(s(from(z0)), cons(x1, sel(x2, x3))) -> c3(A__SEL(a__from(mark(z0)), a__sel(mark(x2), mark(x3))), MARK(from(z0)))
   A__SEL(s(sel(z0, z1)), cons(x1, sel(x2, x3))) -> c3(A__SEL(a__sel(mark(z0), mark(z1)), a__sel(mark(x2), mark(x3))), MARK(sel(z0, z1)))
   A__SEL(s(s(z0)), cons(x1, sel(x2, x3))) -> c3(A__SEL(s(mark(z0)), a__sel(mark(x2), mark(x3))), MARK(s(z0)))
   A__SEL(s(x0), cons(x1, sel(x2, x3))) -> c3(MARK(x0))
   A__SEL(s(cons(z0, z1)), cons(x1, sel(x2, x3))) -> c3(MARK(cons(z0, z1)))
   A__SEL(s(0), cons(x1, sel(x2, x3))) -> c3(A__SEL(0, a__sel(mark(x2), mark(x3))))
   A__SEL(s(x0), cons(x1, cons(from(z0), x3))) -> c3(A__SEL(mark(x0), cons(a__from(mark(z0)), x3)), MARK(x0))
   A__SEL(s(x0), cons(x1, cons(sel(z0, z1), x3))) -> c3(A__SEL(mark(x0), cons(a__sel(mark(z0), mark(z1)), x3)), MARK(x0))
   A__SEL(s(x0), cons(x1, cons(cons(z0, z1), x3))) -> c3(A__SEL(mark(x0), cons(cons(mark(z0), z1), x3)), MARK(x0))
   A__SEL(s(x0), cons(x1, cons(s(z0), x3))) -> c3(A__SEL(mark(x0), cons(s(mark(z0)), x3)), MARK(x0))
   A__SEL(s(x0), cons(x1, cons(0, x3))) -> c3(A__SEL(mark(x0), cons(0, x3)), MARK(x0))
   A__SEL(s(from(z0)), cons(x1, cons(x2, x3))) -> c3(A__SEL(a__from(mark(z0)), cons(mark(x2), x3)), MARK(from(z0)))
   A__SEL(s(sel(z0, z1)), cons(x1, cons(x2, x3))) -> c3(A__SEL(a__sel(mark(z0), mark(z1)), cons(mark(x2), x3)), MARK(sel(z0, z1)))
   A__SEL(s(s(z0)), cons(x1, cons(x2, x3))) -> c3(A__SEL(s(mark(z0)), cons(mark(x2), x3)), MARK(s(z0)))
   A__SEL(s(cons(z0, z1)), cons(x1, cons(x2, x3))) -> c3(MARK(cons(z0, z1)))
   A__SEL(s(0), cons(x1, cons(x2, x3))) -> c3(A__SEL(0, cons(mark(x2), x3)))
   A__SEL(s(from(from(z0))), cons(x1, x2)) -> c3(A__SEL(a__from(a__from(mark(z0))), mark(x2)), MARK(from(from(z0))))
   A__SEL(s(from(sel(z0, z1))), cons(x1, x2)) -> c3(A__SEL(a__from(a__sel(mark(z0), mark(z1))), mark(x2)), MARK(from(sel(z0, z1))))
   A__SEL(s(from(cons(z0, z1))), cons(x1, x2)) -> c3(A__SEL(a__from(cons(mark(z0), z1)), mark(x2)), MARK(from(cons(z0, z1))))
   A__SEL(s(from(s(z0))), cons(x1, x2)) -> c3(A__SEL(a__from(s(mark(z0))), mark(x2)), MARK(from(s(z0))))
   A__SEL(s(from(0)), cons(x1, x2)) -> c3(A__SEL(a__from(0), mark(x2)), MARK(from(0)))
   A__SEL(s(from(x0)), cons(x1, x2)) -> c3(MARK(from(x0)))
   A__SEL(s(from(x0)), cons(x1, s(z0))) -> c3(MARK(from(x0)))
   A__SEL(s(from(x0)), cons(x1, 0)) -> c3(MARK(from(x0)))
   A__SEL(s(sel(x0, from(z0))), cons(x2, x3)) -> c3(A__SEL(a__sel(mark(x0), a__from(mark(z0))), mark(x3)), MARK(sel(x0, from(z0))))
   A__SEL(s(sel(x0, sel(z0, z1))), cons(x2, x3)) -> c3(A__SEL(a__sel(mark(x0), a__sel(mark(z0), mark(z1))), mark(x3)), MARK(sel(x0, sel(z0, z1))))
   A__SEL(s(sel(x0, cons(z0, z1))), cons(x2, x3)) -> c3(A__SEL(a__sel(mark(x0), cons(mark(z0), z1)), mark(x3)), MARK(sel(x0, cons(z0, z1))))
   A__SEL(s(sel(x0, s(z0))), cons(x2, x3)) -> c3(A__SEL(a__sel(mark(x0), s(mark(z0))), mark(x3)), MARK(sel(x0, s(z0))))
   A__SEL(s(sel(x0, 0)), cons(x2, x3)) -> c3(A__SEL(a__sel(mark(x0), 0), mark(x3)), MARK(sel(x0, 0)))
   A__SEL(s(sel(from(z0), x1)), cons(x2, x3)) -> c3(A__SEL(a__sel(a__from(mark(z0)), mark(x1)), mark(x3)), MARK(sel(from(z0), x1)))
   A__SEL(s(sel(sel(z0, z1), x1)), cons(x2, x3)) -> c3(A__SEL(a__sel(a__sel(mark(z0), mark(z1)), mark(x1)), mark(x3)), MARK(sel(sel(z0, z1), x1)))
   A__SEL(s(sel(cons(z0, z1), x1)), cons(x2, x3)) -> c3(A__SEL(a__sel(cons(mark(z0), z1), mark(x1)), mark(x3)), MARK(sel(cons(z0, z1), x1)))
   A__SEL(s(sel(s(z0), x1)), cons(x2, x3)) -> c3(A__SEL(a__sel(s(mark(z0)), mark(x1)), mark(x3)), MARK(sel(s(z0), x1)))
   A__SEL(s(sel(0, x1)), cons(x2, x3)) -> c3(A__SEL(a__sel(0, mark(x1)), mark(x3)), MARK(sel(0, x1)))
   A__SEL(s(sel(x0, x1)), cons(x2, s(z0))) -> c3(MARK(sel(x0, x1)))
   A__SEL(s(sel(x0, x1)), cons(x2, 0)) -> c3(MARK(sel(x0, x1)))
   A__SEL(s(sel(x0, x1)), cons(x2, x3)) -> c3(MARK(sel(x0, x1)))
   A__SEL(s(s(from(z0))), cons(x1, x2)) -> c3(A__SEL(s(a__from(mark(z0))), mark(x2)), MARK(s(from(z0))))
   A__SEL(s(s(sel(z0, z1))), cons(x1, x2)) -> c3(A__SEL(s(a__sel(mark(z0), mark(z1))), mark(x2)), MARK(s(sel(z0, z1))))
   A__SEL(s(s(cons(z0, z1))), cons(x1, x2)) -> c3(A__SEL(s(cons(mark(z0), z1)), mark(x2)), MARK(s(cons(z0, z1))))
   A__SEL(s(s(s(z0))), cons(x1, x2)) -> c3(A__SEL(s(s(mark(z0))), mark(x2)), MARK(s(s(z0))))
   A__SEL(s(s(0)), cons(x1, x2)) -> c3(A__SEL(s(0), mark(x2)), MARK(s(0)))
   A__SEL(s(s(x0)), cons(x1, x2)) -> c3(MARK(s(x0)))
   A__SEL(s(s(x0)), cons(x1, s(z0))) -> c3(MARK(s(x0)))
   A__SEL(s(s(x0)), cons(x1, 0)) -> c3(MARK(s(x0)))
   A__SEL(s(x0), cons(x1, from(x2))) -> c4(A__SEL(mark(x0), cons(mark(mark(x2)), from(s(mark(x2))))), MARK(from(x2)))
   A__SEL(s(x0), cons(x1, from(from(z0)))) -> c4(A__SEL(mark(x0), a__from(a__from(mark(z0)))), MARK(from(from(z0))))
   A__SEL(s(x0), cons(x1, from(sel(z0, z1)))) -> c4(A__SEL(mark(x0), a__from(a__sel(mark(z0), mark(z1)))), MARK(from(sel(z0, z1))))
   A__SEL(s(x0), cons(x1, from(cons(z0, z1)))) -> c4(A__SEL(mark(x0), a__from(cons(mark(z0), z1))), MARK(from(cons(z0, z1))))
   A__SEL(s(x0), cons(x1, from(s(z0)))) -> c4(A__SEL(mark(x0), a__from(s(mark(z0)))), MARK(from(s(z0))))
   A__SEL(s(x0), cons(x1, from(0))) -> c4(A__SEL(mark(x0), a__from(0)), MARK(from(0)))
   A__SEL(s(from(z0)), cons(x1, from(x2))) -> c4(A__SEL(a__from(mark(z0)), a__from(mark(x2))), MARK(from(x2)))
   A__SEL(s(sel(z0, z1)), cons(x1, from(x2))) -> c4(A__SEL(a__sel(mark(z0), mark(z1)), a__from(mark(x2))), MARK(from(x2)))
   A__SEL(s(s(z0)), cons(x1, from(x2))) -> c4(A__SEL(s(mark(z0)), a__from(mark(x2))), MARK(from(x2)))
   A__SEL(s(0), cons(x1, from(x2))) -> c4(A__SEL(0, a__from(mark(x2))), MARK(from(x2)))
   A__SEL(s(x0), cons(x1, from(x2))) -> c4(MARK(from(x2)))
   A__SEL(s(cons(z0, z1)), cons(x1, from(x2))) -> c4(MARK(from(x2)))
   A__SEL(s(x0), cons(x1, sel(x2, from(z0)))) -> c4(A__SEL(mark(x0), a__sel(mark(x2), a__from(mark(z0)))), MARK(sel(x2, from(z0))))
   A__SEL(s(x0), cons(x1, sel(x2, sel(z0, z1)))) -> c4(A__SEL(mark(x0), a__sel(mark(x2), a__sel(mark(z0), mark(z1)))), MARK(sel(x2, sel(z0, z1))))
   A__SEL(s(x0), cons(x1, sel(x2, cons(z0, z1)))) -> c4(A__SEL(mark(x0), a__sel(mark(x2), cons(mark(z0), z1))), MARK(sel(x2, cons(z0, z1))))
   A__SEL(s(x0), cons(x1, sel(x2, s(z0)))) -> c4(A__SEL(mark(x0), a__sel(mark(x2), s(mark(z0)))), MARK(sel(x2, s(z0))))
   A__SEL(s(x0), cons(x1, sel(x2, 0))) -> c4(A__SEL(mark(x0), a__sel(mark(x2), 0)), MARK(sel(x2, 0)))
   A__SEL(s(x0), cons(x1, sel(from(z0), x3))) -> c4(A__SEL(mark(x0), a__sel(a__from(mark(z0)), mark(x3))), MARK(sel(from(z0), x3)))
   A__SEL(s(x0), cons(x1, sel(sel(z0, z1), x3))) -> c4(A__SEL(mark(x0), a__sel(a__sel(mark(z0), mark(z1)), mark(x3))), MARK(sel(sel(z0, z1), x3)))
   A__SEL(s(x0), cons(x1, sel(cons(z0, z1), x3))) -> c4(A__SEL(mark(x0), a__sel(cons(mark(z0), z1), mark(x3))), MARK(sel(cons(z0, z1), x3)))
   A__SEL(s(x0), cons(x1, sel(s(z0), x3))) -> c4(A__SEL(mark(x0), a__sel(s(mark(z0)), mark(x3))), MARK(sel(s(z0), x3)))
   A__SEL(s(x0), cons(x1, sel(0, x3))) -> c4(A__SEL(mark(x0), a__sel(0, mark(x3))), MARK(sel(0, x3)))
   A__SEL(s(from(z0)), cons(x1, sel(x2, x3))) -> c4(A__SEL(a__from(mark(z0)), a__sel(mark(x2), mark(x3))), MARK(sel(x2, x3)))
   A__SEL(s(sel(z0, z1)), cons(x1, sel(x2, x3))) -> c4(A__SEL(a__sel(mark(z0), mark(z1)), a__sel(mark(x2), mark(x3))), MARK(sel(x2, x3)))
   A__SEL(s(s(z0)), cons(x1, sel(x2, x3))) -> c4(A__SEL(s(mark(z0)), a__sel(mark(x2), mark(x3))), MARK(sel(x2, x3)))
   A__SEL(s(0), cons(x1, sel(x2, x3))) -> c4(A__SEL(0, a__sel(mark(x2), mark(x3))), MARK(sel(x2, x3)))
   A__SEL(s(x0), cons(x1, sel(x2, x3))) -> c4(MARK(sel(x2, x3)))
   A__SEL(s(cons(z0, z1)), cons(x1, sel(x2, x3))) -> c4(MARK(sel(x2, x3)))
   A__SEL(s(x0), cons(x1, cons(from(z0), x3))) -> c4(A__SEL(mark(x0), cons(a__from(mark(z0)), x3)), MARK(cons(from(z0), x3)))
   A__SEL(s(x0), cons(x1, cons(sel(z0, z1), x3))) -> c4(A__SEL(mark(x0), cons(a__sel(mark(z0), mark(z1)), x3)), MARK(cons(sel(z0, z1), x3)))
   A__SEL(s(x0), cons(x1, cons(cons(z0, z1), x3))) -> c4(A__SEL(mark(x0), cons(cons(mark(z0), z1), x3)), MARK(cons(cons(z0, z1), x3)))
   A__SEL(s(x0), cons(x1, cons(s(z0), x3))) -> c4(A__SEL(mark(x0), cons(s(mark(z0)), x3)), MARK(cons(s(z0), x3)))
   A__SEL(s(x0), cons(x1, cons(0, x3))) -> c4(A__SEL(mark(x0), cons(0, x3)), MARK(cons(0, x3)))
   A__SEL(s(from(z0)), cons(x1, cons(x2, x3))) -> c4(A__SEL(a__from(mark(z0)), cons(mark(x2), x3)), MARK(cons(x2, x3)))
   A__SEL(s(sel(z0, z1)), cons(x1, cons(x2, x3))) -> c4(A__SEL(a__sel(mark(z0), mark(z1)), cons(mark(x2), x3)), MARK(cons(x2, x3)))
   A__SEL(s(s(z0)), cons(x1, cons(x2, x3))) -> c4(A__SEL(s(mark(z0)), cons(mark(x2), x3)), MARK(cons(x2, x3)))
   A__SEL(s(0), cons(x1, cons(x2, x3))) -> c4(A__SEL(0, cons(mark(x2), x3)), MARK(cons(x2, x3)))
   A__SEL(s(x0), cons(x1, cons(x2, x3))) -> c4(MARK(cons(x2, x3)))
   A__SEL(s(cons(z0, z1)), cons(x1, cons(x2, x3))) -> c4(MARK(cons(x2, x3)))
   A__SEL(s(from(from(z0))), cons(x1, x2)) -> c4(A__SEL(a__from(a__from(mark(z0))), mark(x2)), MARK(x2))
   A__SEL(s(from(sel(z0, z1))), cons(x1, x2)) -> c4(A__SEL(a__from(a__sel(mark(z0), mark(z1))), mark(x2)), MARK(x2))
   A__SEL(s(from(cons(z0, z1))), cons(x1, x2)) -> c4(A__SEL(a__from(cons(mark(z0), z1)), mark(x2)), MARK(x2))
   A__SEL(s(from(s(z0))), cons(x1, x2)) -> c4(A__SEL(a__from(s(mark(z0))), mark(x2)), MARK(x2))
   A__SEL(s(from(0)), cons(x1, x2)) -> c4(A__SEL(a__from(0), mark(x2)), MARK(x2))
   A__SEL(s(from(x0)), cons(x1, s(z0))) -> c4(MARK(s(z0)))
   A__SEL(s(from(x0)), cons(x1, x2)) -> c4(MARK(x2))
   A__SEL(s(sel(x0, x1)), cons(x2, s(z0))) -> c4(A__SEL(a__sel(mark(x0), mark(x1)), s(mark(z0))), MARK(s(z0)))
   A__SEL(s(sel(x0, x1)), cons(x2, x3)) -> c4(A__SEL(sel(mark(x0), mark(x1)), mark(x3)), MARK(x3))
   A__SEL(s(sel(x0, from(z0))), cons(x2, x3)) -> c4(A__SEL(a__sel(mark(x0), a__from(mark(z0))), mark(x3)), MARK(x3))
   A__SEL(s(sel(x0, sel(z0, z1))), cons(x2, x3)) -> c4(A__SEL(a__sel(mark(x0), a__sel(mark(z0), mark(z1))), mark(x3)), MARK(x3))
   A__SEL(s(sel(x0, cons(z0, z1))), cons(x2, x3)) -> c4(A__SEL(a__sel(mark(x0), cons(mark(z0), z1)), mark(x3)), MARK(x3))
   A__SEL(s(sel(x0, s(z0))), cons(x2, x3)) -> c4(A__SEL(a__sel(mark(x0), s(mark(z0))), mark(x3)), MARK(x3))
   A__SEL(s(sel(x0, 0)), cons(x2, x3)) -> c4(A__SEL(a__sel(mark(x0), 0), mark(x3)), MARK(x3))
   A__SEL(s(sel(from(z0), x1)), cons(x2, x3)) -> c4(A__SEL(a__sel(a__from(mark(z0)), mark(x1)), mark(x3)), MARK(x3))
   A__SEL(s(sel(sel(z0, z1), x1)), cons(x2, x3)) -> c4(A__SEL(a__sel(a__sel(mark(z0), mark(z1)), mark(x1)), mark(x3)), MARK(x3))
   A__SEL(s(sel(cons(z0, z1), x1)), cons(x2, x3)) -> c4(A__SEL(a__sel(cons(mark(z0), z1), mark(x1)), mark(x3)), MARK(x3))
   A__SEL(s(sel(s(z0), x1)), cons(x2, x3)) -> c4(A__SEL(a__sel(s(mark(z0)), mark(x1)), mark(x3)), MARK(x3))
   A__SEL(s(sel(0, x1)), cons(x2, x3)) -> c4(A__SEL(a__sel(0, mark(x1)), mark(x3)), MARK(x3))
K tuples:none
Defined Rule Symbols:   a__from_1, a__sel_2, mark_1

Defined Pair Symbols:   A__FROM_1, A__SEL_2, MARK_1

Compound Symbols:   c_1, c2_1, c6_2, c9_1, c10_1, c3_1, c4_2, c4_1, c7_2, c7_1, c8_2, c8_1, c3_2


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

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

(128)
Obligation:
Complexity Dependency Tuples Problem

Rules:
   a__from(z0) -> cons(mark(z0), from(s(z0)))
   a__from(z0) -> from(z0)
   a__sel(0, cons(z0, z1)) -> mark(z0)
   a__sel(s(z0), cons(z1, z2)) -> a__sel(mark(z0), mark(z2))
   a__sel(z0, z1) -> sel(z0, z1)
   mark(from(z0)) -> a__from(mark(z0))
   mark(sel(z0, z1)) -> a__sel(mark(z0), mark(z1))
   mark(cons(z0, z1)) -> cons(mark(z0), z1)
   mark(s(z0)) -> s(mark(z0))
   mark(0) -> 0
Tuples:
   A__FROM(z0) -> c(MARK(z0))
   A__SEL(0, cons(z0, z1)) -> c2(MARK(z0))
   MARK(from(z0)) -> c6(A__FROM(mark(z0)), MARK(z0))
   MARK(cons(z0, z1)) -> c9(MARK(z0))
   MARK(s(z0)) -> c10(MARK(z0))
   A__SEL(s(x0), cons(x1, s(z0))) -> c3(MARK(x0))
   A__SEL(s(x0), cons(x1, 0)) -> c3(MARK(x0))
   A__SEL(s(cons(z0, z1)), cons(x1, x2)) -> c3(MARK(cons(z0, z1)))
   A__SEL(s(s(z0)), cons(x1, x2)) -> c4(A__SEL(s(mark(z0)), mark(x2)), MARK(x2))
   A__SEL(s(0), cons(x1, x2)) -> c4(A__SEL(0, mark(x2)), MARK(x2))
   A__SEL(s(x0), cons(x1, s(z0))) -> c4(MARK(s(z0)))
   A__SEL(s(cons(z0, z1)), cons(x1, x2)) -> c4(MARK(x2))
   MARK(sel(x0, from(z0))) -> c7(A__SEL(mark(x0), a__from(mark(z0))), MARK(x0))
   MARK(sel(x0, sel(z0, z1))) -> c7(A__SEL(mark(x0), a__sel(mark(z0), mark(z1))), MARK(x0))
   MARK(sel(x0, cons(z0, z1))) -> c7(A__SEL(mark(x0), cons(mark(z0), z1)), MARK(x0))
   MARK(sel(from(z0), x1)) -> c7(A__SEL(a__from(mark(z0)), mark(x1)), MARK(from(z0)))
   MARK(sel(sel(z0, z1), x1)) -> c7(A__SEL(a__sel(mark(z0), mark(z1)), mark(x1)), MARK(sel(z0, z1)))
   MARK(sel(s(z0), x1)) -> c7(A__SEL(s(mark(z0)), mark(x1)), MARK(s(z0)))
   MARK(sel(x0, s(z0))) -> c7(MARK(x0))
   MARK(sel(x0, 0)) -> c7(MARK(x0))
   MARK(sel(cons(z0, z1), x1)) -> c7(MARK(cons(z0, z1)))
   MARK(sel(0, x1)) -> c7(A__SEL(0, mark(x1)))
   MARK(sel(x0, from(z0))) -> c8(A__SEL(mark(x0), a__from(mark(z0))), MARK(from(z0)))
   MARK(sel(x0, sel(z0, z1))) -> c8(A__SEL(mark(x0), a__sel(mark(z0), mark(z1))), MARK(sel(z0, z1)))
   MARK(sel(x0, cons(z0, z1))) -> c8(A__SEL(mark(x0), cons(mark(z0), z1)), MARK(cons(z0, z1)))
   MARK(sel(from(z0), x1)) -> c8(A__SEL(a__from(mark(z0)), mark(x1)), MARK(x1))
   MARK(sel(sel(z0, z1), x1)) -> c8(A__SEL(a__sel(mark(z0), mark(z1)), mark(x1)), MARK(x1))
   MARK(sel(s(z0), x1)) -> c8(A__SEL(s(mark(z0)), mark(x1)), MARK(x1))
   MARK(sel(0, x1)) -> c8(A__SEL(0, mark(x1)), MARK(x1))
   MARK(sel(x0, s(z0))) -> c8(MARK(s(z0)))
   MARK(sel(cons(z0, z1), x1)) -> c8(MARK(x1))
   A__SEL(s(x0), cons(x1, from(x2))) -> c3(A__SEL(mark(x0), cons(mark(mark(x2)), from(s(mark(x2))))), MARK(x0))
   A__SEL(s(x0), cons(x1, from(from(z0)))) -> c3(A__SEL(mark(x0), a__from(a__from(mark(z0)))), MARK(x0))
   A__SEL(s(x0), cons(x1, from(sel(z0, z1)))) -> c3(A__SEL(mark(x0), a__from(a__sel(mark(z0), mark(z1)))), MARK(x0))
   A__SEL(s(x0), cons(x1, from(cons(z0, z1)))) -> c3(A__SEL(mark(x0), a__from(cons(mark(z0), z1))), MARK(x0))
   A__SEL(s(x0), cons(x1, from(s(z0)))) -> c3(A__SEL(mark(x0), a__from(s(mark(z0)))), MARK(x0))
   A__SEL(s(x0), cons(x1, from(0))) -> c3(A__SEL(mark(x0), a__from(0)), MARK(x0))
   A__SEL(s(from(z0)), cons(x1, from(x2))) -> c3(A__SEL(a__from(mark(z0)), a__from(mark(x2))), MARK(from(z0)))
   A__SEL(s(sel(z0, z1)), cons(x1, from(x2))) -> c3(A__SEL(a__sel(mark(z0), mark(z1)), a__from(mark(x2))), MARK(sel(z0, z1)))
   A__SEL(s(s(z0)), cons(x1, from(x2))) -> c3(A__SEL(s(mark(z0)), a__from(mark(x2))), MARK(s(z0)))
   A__SEL(s(x0), cons(x1, from(x2))) -> c3(MARK(x0))
   A__SEL(s(cons(z0, z1)), cons(x1, from(x2))) -> c3(MARK(cons(z0, z1)))
   A__SEL(s(0), cons(x1, from(x2))) -> c3(A__SEL(0, a__from(mark(x2))))
   A__SEL(s(x0), cons(x1, sel(x2, from(z0)))) -> c3(A__SEL(mark(x0), a__sel(mark(x2), a__from(mark(z0)))), MARK(x0))
   A__SEL(s(x0), cons(x1, sel(x2, sel(z0, z1)))) -> c3(A__SEL(mark(x0), a__sel(mark(x2), a__sel(mark(z0), mark(z1)))), MARK(x0))
   A__SEL(s(x0), cons(x1, sel(x2, cons(z0, z1)))) -> c3(A__SEL(mark(x0), a__sel(mark(x2), cons(mark(z0), z1))), MARK(x0))
   A__SEL(s(x0), cons(x1, sel(x2, s(z0)))) -> c3(A__SEL(mark(x0), a__sel(mark(x2), s(mark(z0)))), MARK(x0))
   A__SEL(s(x0), cons(x1, sel(x2, 0))) -> c3(A__SEL(mark(x0), a__sel(mark(x2), 0)), MARK(x0))
   A__SEL(s(x0), cons(x1, sel(from(z0), x3))) -> c3(A__SEL(mark(x0), a__sel(a__from(mark(z0)), mark(x3))), MARK(x0))
   A__SEL(s(x0), cons(x1, sel(sel(z0, z1), x3))) -> c3(A__SEL(mark(x0), a__sel(a__sel(mark(z0), mark(z1)), mark(x3))), MARK(x0))
   A__SEL(s(x0), cons(x1, sel(cons(z0, z1), x3))) -> c3(A__SEL(mark(x0), a__sel(cons(mark(z0), z1), mark(x3))), MARK(x0))
   A__SEL(s(x0), cons(x1, sel(s(z0), x3))) -> c3(A__SEL(mark(x0), a__sel(s(mark(z0)), mark(x3))), MARK(x0))
   A__SEL(s(x0), cons(x1, sel(0, x3))) -> c3(A__SEL(mark(x0), a__sel(0, mark(x3))), MARK(x0))
   A__SEL(s(from(z0)), cons(x1, sel(x2, x3))) -> c3(A__SEL(a__from(mark(z0)), a__sel(mark(x2), mark(x3))), MARK(from(z0)))
   A__SEL(s(sel(z0, z1)), cons(x1, sel(x2, x3))) -> c3(A__SEL(a__sel(mark(z0), mark(z1)), a__sel(mark(x2), mark(x3))), MARK(sel(z0, z1)))
   A__SEL(s(s(z0)), cons(x1, sel(x2, x3))) -> c3(A__SEL(s(mark(z0)), a__sel(mark(x2), mark(x3))), MARK(s(z0)))
   A__SEL(s(x0), cons(x1, sel(x2, x3))) -> c3(MARK(x0))
   A__SEL(s(cons(z0, z1)), cons(x1, sel(x2, x3))) -> c3(MARK(cons(z0, z1)))
   A__SEL(s(0), cons(x1, sel(x2, x3))) -> c3(A__SEL(0, a__sel(mark(x2), mark(x3))))
   A__SEL(s(x0), cons(x1, cons(from(z0), x3))) -> c3(A__SEL(mark(x0), cons(a__from(mark(z0)), x3)), MARK(x0))
   A__SEL(s(x0), cons(x1, cons(sel(z0, z1), x3))) -> c3(A__SEL(mark(x0), cons(a__sel(mark(z0), mark(z1)), x3)), MARK(x0))
   A__SEL(s(x0), cons(x1, cons(cons(z0, z1), x3))) -> c3(A__SEL(mark(x0), cons(cons(mark(z0), z1), x3)), MARK(x0))
   A__SEL(s(x0), cons(x1, cons(s(z0), x3))) -> c3(A__SEL(mark(x0), cons(s(mark(z0)), x3)), MARK(x0))
   A__SEL(s(x0), cons(x1, cons(0, x3))) -> c3(A__SEL(mark(x0), cons(0, x3)), MARK(x0))
   A__SEL(s(from(z0)), cons(x1, cons(x2, x3))) -> c3(A__SEL(a__from(mark(z0)), cons(mark(x2), x3)), MARK(from(z0)))
   A__SEL(s(sel(z0, z1)), cons(x1, cons(x2, x3))) -> c3(A__SEL(a__sel(mark(z0), mark(z1)), cons(mark(x2), x3)), MARK(sel(z0, z1)))
   A__SEL(s(s(z0)), cons(x1, cons(x2, x3))) -> c3(A__SEL(s(mark(z0)), cons(mark(x2), x3)), MARK(s(z0)))
   A__SEL(s(cons(z0, z1)), cons(x1, cons(x2, x3))) -> c3(MARK(cons(z0, z1)))
   A__SEL(s(0), cons(x1, cons(x2, x3))) -> c3(A__SEL(0, cons(mark(x2), x3)))
   A__SEL(s(from(from(z0))), cons(x1, x2)) -> c3(A__SEL(a__from(a__from(mark(z0))), mark(x2)), MARK(from(from(z0))))
   A__SEL(s(from(sel(z0, z1))), cons(x1, x2)) -> c3(A__SEL(a__from(a__sel(mark(z0), mark(z1))), mark(x2)), MARK(from(sel(z0, z1))))
   A__SEL(s(from(cons(z0, z1))), cons(x1, x2)) -> c3(A__SEL(a__from(cons(mark(z0), z1)), mark(x2)), MARK(from(cons(z0, z1))))
   A__SEL(s(from(s(z0))), cons(x1, x2)) -> c3(A__SEL(a__from(s(mark(z0))), mark(x2)), MARK(from(s(z0))))
   A__SEL(s(from(0)), cons(x1, x2)) -> c3(A__SEL(a__from(0), mark(x2)), MARK(from(0)))
   A__SEL(s(from(x0)), cons(x1, x2)) -> c3(MARK(from(x0)))
   A__SEL(s(from(x0)), cons(x1, s(z0))) -> c3(MARK(from(x0)))
   A__SEL(s(from(x0)), cons(x1, 0)) -> c3(MARK(from(x0)))
   A__SEL(s(sel(x0, from(z0))), cons(x2, x3)) -> c3(A__SEL(a__sel(mark(x0), a__from(mark(z0))), mark(x3)), MARK(sel(x0, from(z0))))
   A__SEL(s(sel(x0, sel(z0, z1))), cons(x2, x3)) -> c3(A__SEL(a__sel(mark(x0), a__sel(mark(z0), mark(z1))), mark(x3)), MARK(sel(x0, sel(z0, z1))))
   A__SEL(s(sel(x0, cons(z0, z1))), cons(x2, x3)) -> c3(A__SEL(a__sel(mark(x0), cons(mark(z0), z1)), mark(x3)), MARK(sel(x0, cons(z0, z1))))
   A__SEL(s(sel(x0, s(z0))), cons(x2, x3)) -> c3(A__SEL(a__sel(mark(x0), s(mark(z0))), mark(x3)), MARK(sel(x0, s(z0))))
   A__SEL(s(sel(x0, 0)), cons(x2, x3)) -> c3(A__SEL(a__sel(mark(x0), 0), mark(x3)), MARK(sel(x0, 0)))
   A__SEL(s(sel(from(z0), x1)), cons(x2, x3)) -> c3(A__SEL(a__sel(a__from(mark(z0)), mark(x1)), mark(x3)), MARK(sel(from(z0), x1)))
   A__SEL(s(sel(sel(z0, z1), x1)), cons(x2, x3)) -> c3(A__SEL(a__sel(a__sel(mark(z0), mark(z1)), mark(x1)), mark(x3)), MARK(sel(sel(z0, z1), x1)))
   A__SEL(s(sel(cons(z0, z1), x1)), cons(x2, x3)) -> c3(A__SEL(a__sel(cons(mark(z0), z1), mark(x1)), mark(x3)), MARK(sel(cons(z0, z1), x1)))
   A__SEL(s(sel(s(z0), x1)), cons(x2, x3)) -> c3(A__SEL(a__sel(s(mark(z0)), mark(x1)), mark(x3)), MARK(sel(s(z0), x1)))
   A__SEL(s(sel(0, x1)), cons(x2, x3)) -> c3(A__SEL(a__sel(0, mark(x1)), mark(x3)), MARK(sel(0, x1)))
   A__SEL(s(sel(x0, x1)), cons(x2, s(z0))) -> c3(MARK(sel(x0, x1)))
   A__SEL(s(sel(x0, x1)), cons(x2, 0)) -> c3(MARK(sel(x0, x1)))
   A__SEL(s(sel(x0, x1)), cons(x2, x3)) -> c3(MARK(sel(x0, x1)))
   A__SEL(s(s(from(z0))), cons(x1, x2)) -> c3(A__SEL(s(a__from(mark(z0))), mark(x2)), MARK(s(from(z0))))
   A__SEL(s(s(sel(z0, z1))), cons(x1, x2)) -> c3(A__SEL(s(a__sel(mark(z0), mark(z1))), mark(x2)), MARK(s(sel(z0, z1))))
   A__SEL(s(s(cons(z0, z1))), cons(x1, x2)) -> c3(A__SEL(s(cons(mark(z0), z1)), mark(x2)), MARK(s(cons(z0, z1))))
   A__SEL(s(s(s(z0))), cons(x1, x2)) -> c3(A__SEL(s(s(mark(z0))), mark(x2)), MARK(s(s(z0))))
   A__SEL(s(s(0)), cons(x1, x2)) -> c3(A__SEL(s(0), mark(x2)), MARK(s(0)))
   A__SEL(s(s(x0)), cons(x1, x2)) -> c3(MARK(s(x0)))
   A__SEL(s(s(x0)), cons(x1, s(z0))) -> c3(MARK(s(x0)))
   A__SEL(s(s(x0)), cons(x1, 0)) -> c3(MARK(s(x0)))
   A__SEL(s(x0), cons(x1, from(x2))) -> c4(A__SEL(mark(x0), cons(mark(mark(x2)), from(s(mark(x2))))), MARK(from(x2)))
   A__SEL(s(x0), cons(x1, from(from(z0)))) -> c4(A__SEL(mark(x0), a__from(a__from(mark(z0)))), MARK(from(from(z0))))
   A__SEL(s(x0), cons(x1, from(sel(z0, z1)))) -> c4(A__SEL(mark(x0), a__from(a__sel(mark(z0), mark(z1)))), MARK(from(sel(z0, z1))))
   A__SEL(s(x0), cons(x1, from(cons(z0, z1)))) -> c4(A__SEL(mark(x0), a__from(cons(mark(z0), z1))), MARK(from(cons(z0, z1))))
   A__SEL(s(x0), cons(x1, from(s(z0)))) -> c4(A__SEL(mark(x0), a__from(s(mark(z0)))), MARK(from(s(z0))))
   A__SEL(s(x0), cons(x1, from(0))) -> c4(A__SEL(mark(x0), a__from(0)), MARK(from(0)))
   A__SEL(s(from(z0)), cons(x1, from(x2))) -> c4(A__SEL(a__from(mark(z0)), a__from(mark(x2))), MARK(from(x2)))
   A__SEL(s(sel(z0, z1)), cons(x1, from(x2))) -> c4(A__SEL(a__sel(mark(z0), mark(z1)), a__from(mark(x2))), MARK(from(x2)))
   A__SEL(s(s(z0)), cons(x1, from(x2))) -> c4(A__SEL(s(mark(z0)), a__from(mark(x2))), MARK(from(x2)))
   A__SEL(s(0), cons(x1, from(x2))) -> c4(A__SEL(0, a__from(mark(x2))), MARK(from(x2)))
   A__SEL(s(x0), cons(x1, from(x2))) -> c4(MARK(from(x2)))
   A__SEL(s(cons(z0, z1)), cons(x1, from(x2))) -> c4(MARK(from(x2)))
   A__SEL(s(x0), cons(x1, sel(x2, from(z0)))) -> c4(A__SEL(mark(x0), a__sel(mark(x2), a__from(mark(z0)))), MARK(sel(x2, from(z0))))
   A__SEL(s(x0), cons(x1, sel(x2, sel(z0, z1)))) -> c4(A__SEL(mark(x0), a__sel(mark(x2), a__sel(mark(z0), mark(z1)))), MARK(sel(x2, sel(z0, z1))))
   A__SEL(s(x0), cons(x1, sel(x2, cons(z0, z1)))) -> c4(A__SEL(mark(x0), a__sel(mark(x2), cons(mark(z0), z1))), MARK(sel(x2, cons(z0, z1))))
   A__SEL(s(x0), cons(x1, sel(x2, s(z0)))) -> c4(A__SEL(mark(x0), a__sel(mark(x2), s(mark(z0)))), MARK(sel(x2, s(z0))))
   A__SEL(s(x0), cons(x1, sel(x2, 0))) -> c4(A__SEL(mark(x0), a__sel(mark(x2), 0)), MARK(sel(x2, 0)))
   A__SEL(s(x0), cons(x1, sel(from(z0), x3))) -> c4(A__SEL(mark(x0), a__sel(a__from(mark(z0)), mark(x3))), MARK(sel(from(z0), x3)))
   A__SEL(s(x0), cons(x1, sel(sel(z0, z1), x3))) -> c4(A__SEL(mark(x0), a__sel(a__sel(mark(z0), mark(z1)), mark(x3))), MARK(sel(sel(z0, z1), x3)))
   A__SEL(s(x0), cons(x1, sel(cons(z0, z1), x3))) -> c4(A__SEL(mark(x0), a__sel(cons(mark(z0), z1), mark(x3))), MARK(sel(cons(z0, z1), x3)))
   A__SEL(s(x0), cons(x1, sel(s(z0), x3))) -> c4(A__SEL(mark(x0), a__sel(s(mark(z0)), mark(x3))), MARK(sel(s(z0), x3)))
   A__SEL(s(x0), cons(x1, sel(0, x3))) -> c4(A__SEL(mark(x0), a__sel(0, mark(x3))), MARK(sel(0, x3)))
   A__SEL(s(from(z0)), cons(x1, sel(x2, x3))) -> c4(A__SEL(a__from(mark(z0)), a__sel(mark(x2), mark(x3))), MARK(sel(x2, x3)))
   A__SEL(s(sel(z0, z1)), cons(x1, sel(x2, x3))) -> c4(A__SEL(a__sel(mark(z0), mark(z1)), a__sel(mark(x2), mark(x3))), MARK(sel(x2, x3)))
   A__SEL(s(s(z0)), cons(x1, sel(x2, x3))) -> c4(A__SEL(s(mark(z0)), a__sel(mark(x2), mark(x3))), MARK(sel(x2, x3)))
   A__SEL(s(0), cons(x1, sel(x2, x3))) -> c4(A__SEL(0, a__sel(mark(x2), mark(x3))), MARK(sel(x2, x3)))
   A__SEL(s(x0), cons(x1, sel(x2, x3))) -> c4(MARK(sel(x2, x3)))
   A__SEL(s(cons(z0, z1)), cons(x1, sel(x2, x3))) -> c4(MARK(sel(x2, x3)))
   A__SEL(s(x0), cons(x1, cons(from(z0), x3))) -> c4(A__SEL(mark(x0), cons(a__from(mark(z0)), x3)), MARK(cons(from(z0), x3)))
   A__SEL(s(x0), cons(x1, cons(sel(z0, z1), x3))) -> c4(A__SEL(mark(x0), cons(a__sel(mark(z0), mark(z1)), x3)), MARK(cons(sel(z0, z1), x3)))
   A__SEL(s(x0), cons(x1, cons(cons(z0, z1), x3))) -> c4(A__SEL(mark(x0), cons(cons(mark(z0), z1), x3)), MARK(cons(cons(z0, z1), x3)))
   A__SEL(s(x0), cons(x1, cons(s(z0), x3))) -> c4(A__SEL(mark(x0), cons(s(mark(z0)), x3)), MARK(cons(s(z0), x3)))
   A__SEL(s(x0), cons(x1, cons(0, x3))) -> c4(A__SEL(mark(x0), cons(0, x3)), MARK(cons(0, x3)))
   A__SEL(s(from(z0)), cons(x1, cons(x2, x3))) -> c4(A__SEL(a__from(mark(z0)), cons(mark(x2), x3)), MARK(cons(x2, x3)))
   A__SEL(s(sel(z0, z1)), cons(x1, cons(x2, x3))) -> c4(A__SEL(a__sel(mark(z0), mark(z1)), cons(mark(x2), x3)), MARK(cons(x2, x3)))
   A__SEL(s(s(z0)), cons(x1, cons(x2, x3))) -> c4(A__SEL(s(mark(z0)), cons(mark(x2), x3)), MARK(cons(x2, x3)))
   A__SEL(s(0), cons(x1, cons(x2, x3))) -> c4(A__SEL(0, cons(mark(x2), x3)), MARK(cons(x2, x3)))
   A__SEL(s(x0), cons(x1, cons(x2, x3))) -> c4(MARK(cons(x2, x3)))
   A__SEL(s(cons(z0, z1)), cons(x1, cons(x2, x3))) -> c4(MARK(cons(x2, x3)))
   A__SEL(s(from(from(z0))), cons(x1, x2)) -> c4(A__SEL(a__from(a__from(mark(z0))), mark(x2)), MARK(x2))
   A__SEL(s(from(sel(z0, z1))), cons(x1, x2)) -> c4(A__SEL(a__from(a__sel(mark(z0), mark(z1))), mark(x2)), MARK(x2))
   A__SEL(s(from(cons(z0, z1))), cons(x1, x2)) -> c4(A__SEL(a__from(cons(mark(z0), z1)), mark(x2)), MARK(x2))
   A__SEL(s(from(s(z0))), cons(x1, x2)) -> c4(A__SEL(a__from(s(mark(z0))), mark(x2)), MARK(x2))
   A__SEL(s(from(0)), cons(x1, x2)) -> c4(A__SEL(a__from(0), mark(x2)), MARK(x2))
   A__SEL(s(from(x0)), cons(x1, s(z0))) -> c4(MARK(s(z0)))
   A__SEL(s(from(x0)), cons(x1, x2)) -> c4(MARK(x2))
   A__SEL(s(sel(x0, from(z0))), cons(x2, x3)) -> c4(A__SEL(a__sel(mark(x0), a__from(mark(z0))), mark(x3)), MARK(x3))
   A__SEL(s(sel(x0, sel(z0, z1))), cons(x2, x3)) -> c4(A__SEL(a__sel(mark(x0), a__sel(mark(z0), mark(z1))), mark(x3)), MARK(x3))
   A__SEL(s(sel(x0, cons(z0, z1))), cons(x2, x3)) -> c4(A__SEL(a__sel(mark(x0), cons(mark(z0), z1)), mark(x3)), MARK(x3))
   A__SEL(s(sel(x0, s(z0))), cons(x2, x3)) -> c4(A__SEL(a__sel(mark(x0), s(mark(z0))), mark(x3)), MARK(x3))
   A__SEL(s(sel(x0, 0)), cons(x2, x3)) -> c4(A__SEL(a__sel(mark(x0), 0), mark(x3)), MARK(x3))
   A__SEL(s(sel(from(z0), x1)), cons(x2, x3)) -> c4(A__SEL(a__sel(a__from(mark(z0)), mark(x1)), mark(x3)), MARK(x3))
   A__SEL(s(sel(sel(z0, z1), x1)), cons(x2, x3)) -> c4(A__SEL(a__sel(a__sel(mark(z0), mark(z1)), mark(x1)), mark(x3)), MARK(x3))
   A__SEL(s(sel(cons(z0, z1), x1)), cons(x2, x3)) -> c4(A__SEL(a__sel(cons(mark(z0), z1), mark(x1)), mark(x3)), MARK(x3))
   A__SEL(s(sel(s(z0), x1)), cons(x2, x3)) -> c4(A__SEL(a__sel(s(mark(z0)), mark(x1)), mark(x3)), MARK(x3))
   A__SEL(s(sel(0, x1)), cons(x2, x3)) -> c4(A__SEL(a__sel(0, mark(x1)), mark(x3)), MARK(x3))
   A__SEL(s(sel(x0, x1)), cons(x2, s(z0))) -> c4(MARK(s(z0)))
   A__SEL(s(sel(x0, x1)), cons(x2, x3)) -> c4(MARK(x3))
S tuples:
   A__FROM(z0) -> c(MARK(z0))
   A__SEL(0, cons(z0, z1)) -> c2(MARK(z0))
   MARK(from(z0)) -> c6(A__FROM(mark(z0)), MARK(z0))
   MARK(cons(z0, z1)) -> c9(MARK(z0))
   MARK(s(z0)) -> c10(MARK(z0))
   A__SEL(s(x0), cons(x1, s(z0))) -> c3(MARK(x0))
   A__SEL(s(x0), cons(x1, 0)) -> c3(MARK(x0))
   A__SEL(s(cons(z0, z1)), cons(x1, x2)) -> c3(MARK(cons(z0, z1)))
   A__SEL(s(s(z0)), cons(x1, x2)) -> c4(A__SEL(s(mark(z0)), mark(x2)), MARK(x2))
   A__SEL(s(0), cons(x1, x2)) -> c4(A__SEL(0, mark(x2)), MARK(x2))
   A__SEL(s(x0), cons(x1, s(z0))) -> c4(MARK(s(z0)))
   A__SEL(s(cons(z0, z1)), cons(x1, x2)) -> c4(MARK(x2))
   MARK(sel(x0, from(z0))) -> c7(A__SEL(mark(x0), a__from(mark(z0))), MARK(x0))
   MARK(sel(x0, sel(z0, z1))) -> c7(A__SEL(mark(x0), a__sel(mark(z0), mark(z1))), MARK(x0))
   MARK(sel(x0, cons(z0, z1))) -> c7(A__SEL(mark(x0), cons(mark(z0), z1)), MARK(x0))
   MARK(sel(from(z0), x1)) -> c7(A__SEL(a__from(mark(z0)), mark(x1)), MARK(from(z0)))
   MARK(sel(sel(z0, z1), x1)) -> c7(A__SEL(a__sel(mark(z0), mark(z1)), mark(x1)), MARK(sel(z0, z1)))
   MARK(sel(s(z0), x1)) -> c7(A__SEL(s(mark(z0)), mark(x1)), MARK(s(z0)))
   MARK(sel(x0, s(z0))) -> c7(MARK(x0))
   MARK(sel(x0, 0)) -> c7(MARK(x0))
   MARK(sel(cons(z0, z1), x1)) -> c7(MARK(cons(z0, z1)))
   MARK(sel(0, x1)) -> c7(A__SEL(0, mark(x1)))
   MARK(sel(x0, from(z0))) -> c8(A__SEL(mark(x0), a__from(mark(z0))), MARK(from(z0)))
   MARK(sel(x0, sel(z0, z1))) -> c8(A__SEL(mark(x0), a__sel(mark(z0), mark(z1))), MARK(sel(z0, z1)))
   MARK(sel(x0, cons(z0, z1))) -> c8(A__SEL(mark(x0), cons(mark(z0), z1)), MARK(cons(z0, z1)))
   MARK(sel(from(z0), x1)) -> c8(A__SEL(a__from(mark(z0)), mark(x1)), MARK(x1))
   MARK(sel(sel(z0, z1), x1)) -> c8(A__SEL(a__sel(mark(z0), mark(z1)), mark(x1)), MARK(x1))
   MARK(sel(s(z0), x1)) -> c8(A__SEL(s(mark(z0)), mark(x1)), MARK(x1))
   MARK(sel(0, x1)) -> c8(A__SEL(0, mark(x1)), MARK(x1))
   MARK(sel(x0, s(z0))) -> c8(MARK(s(z0)))
   MARK(sel(cons(z0, z1), x1)) -> c8(MARK(x1))
   A__SEL(s(x0), cons(x1, from(x2))) -> c3(A__SEL(mark(x0), cons(mark(mark(x2)), from(s(mark(x2))))), MARK(x0))
   A__SEL(s(x0), cons(x1, from(from(z0)))) -> c3(A__SEL(mark(x0), a__from(a__from(mark(z0)))), MARK(x0))
   A__SEL(s(x0), cons(x1, from(sel(z0, z1)))) -> c3(A__SEL(mark(x0), a__from(a__sel(mark(z0), mark(z1)))), MARK(x0))
   A__SEL(s(x0), cons(x1, from(cons(z0, z1)))) -> c3(A__SEL(mark(x0), a__from(cons(mark(z0), z1))), MARK(x0))
   A__SEL(s(x0), cons(x1, from(s(z0)))) -> c3(A__SEL(mark(x0), a__from(s(mark(z0)))), MARK(x0))
   A__SEL(s(x0), cons(x1, from(0))) -> c3(A__SEL(mark(x0), a__from(0)), MARK(x0))
   A__SEL(s(from(z0)), cons(x1, from(x2))) -> c3(A__SEL(a__from(mark(z0)), a__from(mark(x2))), MARK(from(z0)))
   A__SEL(s(sel(z0, z1)), cons(x1, from(x2))) -> c3(A__SEL(a__sel(mark(z0), mark(z1)), a__from(mark(x2))), MARK(sel(z0, z1)))
   A__SEL(s(s(z0)), cons(x1, from(x2))) -> c3(A__SEL(s(mark(z0)), a__from(mark(x2))), MARK(s(z0)))
   A__SEL(s(x0), cons(x1, from(x2))) -> c3(MARK(x0))
   A__SEL(s(cons(z0, z1)), cons(x1, from(x2))) -> c3(MARK(cons(z0, z1)))
   A__SEL(s(0), cons(x1, from(x2))) -> c3(A__SEL(0, a__from(mark(x2))))
   A__SEL(s(x0), cons(x1, sel(x2, from(z0)))) -> c3(A__SEL(mark(x0), a__sel(mark(x2), a__from(mark(z0)))), MARK(x0))
   A__SEL(s(x0), cons(x1, sel(x2, sel(z0, z1)))) -> c3(A__SEL(mark(x0), a__sel(mark(x2), a__sel(mark(z0), mark(z1)))), MARK(x0))
   A__SEL(s(x0), cons(x1, sel(x2, cons(z0, z1)))) -> c3(A__SEL(mark(x0), a__sel(mark(x2), cons(mark(z0), z1))), MARK(x0))
   A__SEL(s(x0), cons(x1, sel(x2, s(z0)))) -> c3(A__SEL(mark(x0), a__sel(mark(x2), s(mark(z0)))), MARK(x0))
   A__SEL(s(x0), cons(x1, sel(x2, 0))) -> c3(A__SEL(mark(x0), a__sel(mark(x2), 0)), MARK(x0))
   A__SEL(s(x0), cons(x1, sel(from(z0), x3))) -> c3(A__SEL(mark(x0), a__sel(a__from(mark(z0)), mark(x3))), MARK(x0))
   A__SEL(s(x0), cons(x1, sel(sel(z0, z1), x3))) -> c3(A__SEL(mark(x0), a__sel(a__sel(mark(z0), mark(z1)), mark(x3))), MARK(x0))
   A__SEL(s(x0), cons(x1, sel(cons(z0, z1), x3))) -> c3(A__SEL(mark(x0), a__sel(cons(mark(z0), z1), mark(x3))), MARK(x0))
   A__SEL(s(x0), cons(x1, sel(s(z0), x3))) -> c3(A__SEL(mark(x0), a__sel(s(mark(z0)), mark(x3))), MARK(x0))
   A__SEL(s(x0), cons(x1, sel(0, x3))) -> c3(A__SEL(mark(x0), a__sel(0, mark(x3))), MARK(x0))
   A__SEL(s(from(z0)), cons(x1, sel(x2, x3))) -> c3(A__SEL(a__from(mark(z0)), a__sel(mark(x2), mark(x3))), MARK(from(z0)))
   A__SEL(s(sel(z0, z1)), cons(x1, sel(x2, x3))) -> c3(A__SEL(a__sel(mark(z0), mark(z1)), a__sel(mark(x2), mark(x3))), MARK(sel(z0, z1)))
   A__SEL(s(s(z0)), cons(x1, sel(x2, x3))) -> c3(A__SEL(s(mark(z0)), a__sel(mark(x2), mark(x3))), MARK(s(z0)))
   A__SEL(s(x0), cons(x1, sel(x2, x3))) -> c3(MARK(x0))
   A__SEL(s(cons(z0, z1)), cons(x1, sel(x2, x3))) -> c3(MARK(cons(z0, z1)))
   A__SEL(s(0), cons(x1, sel(x2, x3))) -> c3(A__SEL(0, a__sel(mark(x2), mark(x3))))
   A__SEL(s(x0), cons(x1, cons(from(z0), x3))) -> c3(A__SEL(mark(x0), cons(a__from(mark(z0)), x3)), MARK(x0))
   A__SEL(s(x0), cons(x1, cons(sel(z0, z1), x3))) -> c3(A__SEL(mark(x0), cons(a__sel(mark(z0), mark(z1)), x3)), MARK(x0))
   A__SEL(s(x0), cons(x1, cons(cons(z0, z1), x3))) -> c3(A__SEL(mark(x0), cons(cons(mark(z0), z1), x3)), MARK(x0))
   A__SEL(s(x0), cons(x1, cons(s(z0), x3))) -> c3(A__SEL(mark(x0), cons(s(mark(z0)), x3)), MARK(x0))
   A__SEL(s(x0), cons(x1, cons(0, x3))) -> c3(A__SEL(mark(x0), cons(0, x3)), MARK(x0))
   A__SEL(s(from(z0)), cons(x1, cons(x2, x3))) -> c3(A__SEL(a__from(mark(z0)), cons(mark(x2), x3)), MARK(from(z0)))
   A__SEL(s(sel(z0, z1)), cons(x1, cons(x2, x3))) -> c3(A__SEL(a__sel(mark(z0), mark(z1)), cons(mark(x2), x3)), MARK(sel(z0, z1)))
   A__SEL(s(s(z0)), cons(x1, cons(x2, x3))) -> c3(A__SEL(s(mark(z0)), cons(mark(x2), x3)), MARK(s(z0)))
   A__SEL(s(cons(z0, z1)), cons(x1, cons(x2, x3))) -> c3(MARK(cons(z0, z1)))
   A__SEL(s(0), cons(x1, cons(x2, x3))) -> c3(A__SEL(0, cons(mark(x2), x3)))
   A__SEL(s(from(from(z0))), cons(x1, x2)) -> c3(A__SEL(a__from(a__from(mark(z0))), mark(x2)), MARK(from(from(z0))))
   A__SEL(s(from(sel(z0, z1))), cons(x1, x2)) -> c3(A__SEL(a__from(a__sel(mark(z0), mark(z1))), mark(x2)), MARK(from(sel(z0, z1))))
   A__SEL(s(from(cons(z0, z1))), cons(x1, x2)) -> c3(A__SEL(a__from(cons(mark(z0), z1)), mark(x2)), MARK(from(cons(z0, z1))))
   A__SEL(s(from(s(z0))), cons(x1, x2)) -> c3(A__SEL(a__from(s(mark(z0))), mark(x2)), MARK(from(s(z0))))
   A__SEL(s(from(0)), cons(x1, x2)) -> c3(A__SEL(a__from(0), mark(x2)), MARK(from(0)))
   A__SEL(s(from(x0)), cons(x1, x2)) -> c3(MARK(from(x0)))
   A__SEL(s(from(x0)), cons(x1, s(z0))) -> c3(MARK(from(x0)))
   A__SEL(s(from(x0)), cons(x1, 0)) -> c3(MARK(from(x0)))
   A__SEL(s(sel(x0, from(z0))), cons(x2, x3)) -> c3(A__SEL(a__sel(mark(x0), a__from(mark(z0))), mark(x3)), MARK(sel(x0, from(z0))))
   A__SEL(s(sel(x0, sel(z0, z1))), cons(x2, x3)) -> c3(A__SEL(a__sel(mark(x0), a__sel(mark(z0), mark(z1))), mark(x3)), MARK(sel(x0, sel(z0, z1))))
   A__SEL(s(sel(x0, cons(z0, z1))), cons(x2, x3)) -> c3(A__SEL(a__sel(mark(x0), cons(mark(z0), z1)), mark(x3)), MARK(sel(x0, cons(z0, z1))))
   A__SEL(s(sel(x0, s(z0))), cons(x2, x3)) -> c3(A__SEL(a__sel(mark(x0), s(mark(z0))), mark(x3)), MARK(sel(x0, s(z0))))
   A__SEL(s(sel(x0, 0)), cons(x2, x3)) -> c3(A__SEL(a__sel(mark(x0), 0), mark(x3)), MARK(sel(x0, 0)))
   A__SEL(s(sel(from(z0), x1)), cons(x2, x3)) -> c3(A__SEL(a__sel(a__from(mark(z0)), mark(x1)), mark(x3)), MARK(sel(from(z0), x1)))
   A__SEL(s(sel(sel(z0, z1), x1)), cons(x2, x3)) -> c3(A__SEL(a__sel(a__sel(mark(z0), mark(z1)), mark(x1)), mark(x3)), MARK(sel(sel(z0, z1), x1)))
   A__SEL(s(sel(cons(z0, z1), x1)), cons(x2, x3)) -> c3(A__SEL(a__sel(cons(mark(z0), z1), mark(x1)), mark(x3)), MARK(sel(cons(z0, z1), x1)))
   A__SEL(s(sel(s(z0), x1)), cons(x2, x3)) -> c3(A__SEL(a__sel(s(mark(z0)), mark(x1)), mark(x3)), MARK(sel(s(z0), x1)))
   A__SEL(s(sel(0, x1)), cons(x2, x3)) -> c3(A__SEL(a__sel(0, mark(x1)), mark(x3)), MARK(sel(0, x1)))
   A__SEL(s(sel(x0, x1)), cons(x2, s(z0))) -> c3(MARK(sel(x0, x1)))
   A__SEL(s(sel(x0, x1)), cons(x2, 0)) -> c3(MARK(sel(x0, x1)))
   A__SEL(s(sel(x0, x1)), cons(x2, x3)) -> c3(MARK(sel(x0, x1)))
   A__SEL(s(s(from(z0))), cons(x1, x2)) -> c3(A__SEL(s(a__from(mark(z0))), mark(x2)), MARK(s(from(z0))))
   A__SEL(s(s(sel(z0, z1))), cons(x1, x2)) -> c3(A__SEL(s(a__sel(mark(z0), mark(z1))), mark(x2)), MARK(s(sel(z0, z1))))
   A__SEL(s(s(cons(z0, z1))), cons(x1, x2)) -> c3(A__SEL(s(cons(mark(z0), z1)), mark(x2)), MARK(s(cons(z0, z1))))
   A__SEL(s(s(s(z0))), cons(x1, x2)) -> c3(A__SEL(s(s(mark(z0))), mark(x2)), MARK(s(s(z0))))
   A__SEL(s(s(0)), cons(x1, x2)) -> c3(A__SEL(s(0), mark(x2)), MARK(s(0)))
   A__SEL(s(s(x0)), cons(x1, x2)) -> c3(MARK(s(x0)))
   A__SEL(s(s(x0)), cons(x1, s(z0))) -> c3(MARK(s(x0)))
   A__SEL(s(s(x0)), cons(x1, 0)) -> c3(MARK(s(x0)))
   A__SEL(s(x0), cons(x1, from(x2))) -> c4(A__SEL(mark(x0), cons(mark(mark(x2)), from(s(mark(x2))))), MARK(from(x2)))
   A__SEL(s(x0), cons(x1, from(from(z0)))) -> c4(A__SEL(mark(x0), a__from(a__from(mark(z0)))), MARK(from(from(z0))))
   A__SEL(s(x0), cons(x1, from(sel(z0, z1)))) -> c4(A__SEL(mark(x0), a__from(a__sel(mark(z0), mark(z1)))), MARK(from(sel(z0, z1))))
   A__SEL(s(x0), cons(x1, from(cons(z0, z1)))) -> c4(A__SEL(mark(x0), a__from(cons(mark(z0), z1))), MARK(from(cons(z0, z1))))
   A__SEL(s(x0), cons(x1, from(s(z0)))) -> c4(A__SEL(mark(x0), a__from(s(mark(z0)))), MARK(from(s(z0))))
   A__SEL(s(x0), cons(x1, from(0))) -> c4(A__SEL(mark(x0), a__from(0)), MARK(from(0)))
   A__SEL(s(from(z0)), cons(x1, from(x2))) -> c4(A__SEL(a__from(mark(z0)), a__from(mark(x2))), MARK(from(x2)))
   A__SEL(s(sel(z0, z1)), cons(x1, from(x2))) -> c4(A__SEL(a__sel(mark(z0), mark(z1)), a__from(mark(x2))), MARK(from(x2)))
   A__SEL(s(s(z0)), cons(x1, from(x2))) -> c4(A__SEL(s(mark(z0)), a__from(mark(x2))), MARK(from(x2)))
   A__SEL(s(0), cons(x1, from(x2))) -> c4(A__SEL(0, a__from(mark(x2))), MARK(from(x2)))
   A__SEL(s(x0), cons(x1, from(x2))) -> c4(MARK(from(x2)))
   A__SEL(s(cons(z0, z1)), cons(x1, from(x2))) -> c4(MARK(from(x2)))
   A__SEL(s(x0), cons(x1, sel(x2, from(z0)))) -> c4(A__SEL(mark(x0), a__sel(mark(x2), a__from(mark(z0)))), MARK(sel(x2, from(z0))))
   A__SEL(s(x0), cons(x1, sel(x2, sel(z0, z1)))) -> c4(A__SEL(mark(x0), a__sel(mark(x2), a__sel(mark(z0), mark(z1)))), MARK(sel(x2, sel(z0, z1))))
   A__SEL(s(x0), cons(x1, sel(x2, cons(z0, z1)))) -> c4(A__SEL(mark(x0), a__sel(mark(x2), cons(mark(z0), z1))), MARK(sel(x2, cons(z0, z1))))
   A__SEL(s(x0), cons(x1, sel(x2, s(z0)))) -> c4(A__SEL(mark(x0), a__sel(mark(x2), s(mark(z0)))), MARK(sel(x2, s(z0))))
   A__SEL(s(x0), cons(x1, sel(x2, 0))) -> c4(A__SEL(mark(x0), a__sel(mark(x2), 0)), MARK(sel(x2, 0)))
   A__SEL(s(x0), cons(x1, sel(from(z0), x3))) -> c4(A__SEL(mark(x0), a__sel(a__from(mark(z0)), mark(x3))), MARK(sel(from(z0), x3)))
   A__SEL(s(x0), cons(x1, sel(sel(z0, z1), x3))) -> c4(A__SEL(mark(x0), a__sel(a__sel(mark(z0), mark(z1)), mark(x3))), MARK(sel(sel(z0, z1), x3)))
   A__SEL(s(x0), cons(x1, sel(cons(z0, z1), x3))) -> c4(A__SEL(mark(x0), a__sel(cons(mark(z0), z1), mark(x3))), MARK(sel(cons(z0, z1), x3)))
   A__SEL(s(x0), cons(x1, sel(s(z0), x3))) -> c4(A__SEL(mark(x0), a__sel(s(mark(z0)), mark(x3))), MARK(sel(s(z0), x3)))
   A__SEL(s(x0), cons(x1, sel(0, x3))) -> c4(A__SEL(mark(x0), a__sel(0, mark(x3))), MARK(sel(0, x3)))
   A__SEL(s(from(z0)), cons(x1, sel(x2, x3))) -> c4(A__SEL(a__from(mark(z0)), a__sel(mark(x2), mark(x3))), MARK(sel(x2, x3)))
   A__SEL(s(sel(z0, z1)), cons(x1, sel(x2, x3))) -> c4(A__SEL(a__sel(mark(z0), mark(z1)), a__sel(mark(x2), mark(x3))), MARK(sel(x2, x3)))
   A__SEL(s(s(z0)), cons(x1, sel(x2, x3))) -> c4(A__SEL(s(mark(z0)), a__sel(mark(x2), mark(x3))), MARK(sel(x2, x3)))
   A__SEL(s(0), cons(x1, sel(x2, x3))) -> c4(A__SEL(0, a__sel(mark(x2), mark(x3))), MARK(sel(x2, x3)))
   A__SEL(s(x0), cons(x1, sel(x2, x3))) -> c4(MARK(sel(x2, x3)))
   A__SEL(s(cons(z0, z1)), cons(x1, sel(x2, x3))) -> c4(MARK(sel(x2, x3)))
   A__SEL(s(x0), cons(x1, cons(from(z0), x3))) -> c4(A__SEL(mark(x0), cons(a__from(mark(z0)), x3)), MARK(cons(from(z0), x3)))
   A__SEL(s(x0), cons(x1, cons(sel(z0, z1), x3))) -> c4(A__SEL(mark(x0), cons(a__sel(mark(z0), mark(z1)), x3)), MARK(cons(sel(z0, z1), x3)))
   A__SEL(s(x0), cons(x1, cons(cons(z0, z1), x3))) -> c4(A__SEL(mark(x0), cons(cons(mark(z0), z1), x3)), MARK(cons(cons(z0, z1), x3)))
   A__SEL(s(x0), cons(x1, cons(s(z0), x3))) -> c4(A__SEL(mark(x0), cons(s(mark(z0)), x3)), MARK(cons(s(z0), x3)))
   A__SEL(s(x0), cons(x1, cons(0, x3))) -> c4(A__SEL(mark(x0), cons(0, x3)), MARK(cons(0, x3)))
   A__SEL(s(from(z0)), cons(x1, cons(x2, x3))) -> c4(A__SEL(a__from(mark(z0)), cons(mark(x2), x3)), MARK(cons(x2, x3)))
   A__SEL(s(sel(z0, z1)), cons(x1, cons(x2, x3))) -> c4(A__SEL(a__sel(mark(z0), mark(z1)), cons(mark(x2), x3)), MARK(cons(x2, x3)))
   A__SEL(s(s(z0)), cons(x1, cons(x2, x3))) -> c4(A__SEL(s(mark(z0)), cons(mark(x2), x3)), MARK(cons(x2, x3)))
   A__SEL(s(0), cons(x1, cons(x2, x3))) -> c4(A__SEL(0, cons(mark(x2), x3)), MARK(cons(x2, x3)))
   A__SEL(s(x0), cons(x1, cons(x2, x3))) -> c4(MARK(cons(x2, x3)))
   A__SEL(s(cons(z0, z1)), cons(x1, cons(x2, x3))) -> c4(MARK(cons(x2, x3)))
   A__SEL(s(from(from(z0))), cons(x1, x2)) -> c4(A__SEL(a__from(a__from(mark(z0))), mark(x2)), MARK(x2))
   A__SEL(s(from(sel(z0, z1))), cons(x1, x2)) -> c4(A__SEL(a__from(a__sel(mark(z0), mark(z1))), mark(x2)), MARK(x2))
   A__SEL(s(from(cons(z0, z1))), cons(x1, x2)) -> c4(A__SEL(a__from(cons(mark(z0), z1)), mark(x2)), MARK(x2))
   A__SEL(s(from(s(z0))), cons(x1, x2)) -> c4(A__SEL(a__from(s(mark(z0))), mark(x2)), MARK(x2))
   A__SEL(s(from(0)), cons(x1, x2)) -> c4(A__SEL(a__from(0), mark(x2)), MARK(x2))
   A__SEL(s(from(x0)), cons(x1, s(z0))) -> c4(MARK(s(z0)))
   A__SEL(s(from(x0)), cons(x1, x2)) -> c4(MARK(x2))
   A__SEL(s(sel(x0, from(z0))), cons(x2, x3)) -> c4(A__SEL(a__sel(mark(x0), a__from(mark(z0))), mark(x3)), MARK(x3))
   A__SEL(s(sel(x0, sel(z0, z1))), cons(x2, x3)) -> c4(A__SEL(a__sel(mark(x0), a__sel(mark(z0), mark(z1))), mark(x3)), MARK(x3))
   A__SEL(s(sel(x0, cons(z0, z1))), cons(x2, x3)) -> c4(A__SEL(a__sel(mark(x0), cons(mark(z0), z1)), mark(x3)), MARK(x3))
   A__SEL(s(sel(x0, s(z0))), cons(x2, x3)) -> c4(A__SEL(a__sel(mark(x0), s(mark(z0))), mark(x3)), MARK(x3))
   A__SEL(s(sel(x0, 0)), cons(x2, x3)) -> c4(A__SEL(a__sel(mark(x0), 0), mark(x3)), MARK(x3))
   A__SEL(s(sel(from(z0), x1)), cons(x2, x3)) -> c4(A__SEL(a__sel(a__from(mark(z0)), mark(x1)), mark(x3)), MARK(x3))
   A__SEL(s(sel(sel(z0, z1), x1)), cons(x2, x3)) -> c4(A__SEL(a__sel(a__sel(mark(z0), mark(z1)), mark(x1)), mark(x3)), MARK(x3))
   A__SEL(s(sel(cons(z0, z1), x1)), cons(x2, x3)) -> c4(A__SEL(a__sel(cons(mark(z0), z1), mark(x1)), mark(x3)), MARK(x3))
   A__SEL(s(sel(s(z0), x1)), cons(x2, x3)) -> c4(A__SEL(a__sel(s(mark(z0)), mark(x1)), mark(x3)), MARK(x3))
   A__SEL(s(sel(0, x1)), cons(x2, x3)) -> c4(A__SEL(a__sel(0, mark(x1)), mark(x3)), MARK(x3))
   A__SEL(s(sel(x0, x1)), cons(x2, s(z0))) -> c4(MARK(s(z0)))
   A__SEL(s(sel(x0, x1)), cons(x2, x3)) -> c4(MARK(x3))
K tuples:none
Defined Rule Symbols:   a__from_1, a__sel_2, mark_1

Defined Pair Symbols:   A__FROM_1, A__SEL_2, MARK_1

Compound Symbols:   c_1, c2_1, c6_2, c9_1, c10_1, c3_1, c4_2, c4_1, c7_2, c7_1, c8_2, c8_1, c3_2


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

(129) CdtNarrowingProof (BOTH BOUNDS(ID, ID))
Use narrowing to replace A__SEL(s(s(z0)), cons(x1, x2)) -> c4(A__SEL(s(mark(z0)), mark(x2)), MARK(x2)) by 
   A__SEL(s(s(x0)), cons(x1, from(z0))) -> c4(A__SEL(s(mark(x0)), a__from(mark(z0))), MARK(from(z0)))
   A__SEL(s(s(x0)), cons(x1, sel(z0, z1))) -> c4(A__SEL(s(mark(x0)), a__sel(mark(z0), mark(z1))), MARK(sel(z0, z1)))
   A__SEL(s(s(x0)), cons(x1, cons(z0, z1))) -> c4(A__SEL(s(mark(x0)), cons(mark(z0), z1)), MARK(cons(z0, z1)))
   A__SEL(s(s(x0)), cons(x1, s(z0))) -> c4(A__SEL(s(mark(x0)), s(mark(z0))), MARK(s(z0)))
   A__SEL(s(s(x0)), cons(x1, 0)) -> c4(A__SEL(s(mark(x0)), 0), MARK(0))
   A__SEL(s(s(from(z0))), cons(x1, x2)) -> c4(A__SEL(s(a__from(mark(z0))), mark(x2)), MARK(x2))
   A__SEL(s(s(sel(z0, z1))), cons(x1, x2)) -> c4(A__SEL(s(a__sel(mark(z0), mark(z1))), mark(x2)), MARK(x2))
   A__SEL(s(s(cons(z0, z1))), cons(x1, x2)) -> c4(A__SEL(s(cons(mark(z0), z1)), mark(x2)), MARK(x2))
   A__SEL(s(s(s(z0))), cons(x1, x2)) -> c4(A__SEL(s(s(mark(z0))), mark(x2)), MARK(x2))
   A__SEL(s(s(0)), cons(x1, x2)) -> c4(A__SEL(s(0), mark(x2)), MARK(x2))

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

(130)
Obligation:
Complexity Dependency Tuples Problem

Rules:
   a__from(z0) -> cons(mark(z0), from(s(z0)))
   a__from(z0) -> from(z0)
   a__sel(0, cons(z0, z1)) -> mark(z0)
   a__sel(s(z0), cons(z1, z2)) -> a__sel(mark(z0), mark(z2))
   a__sel(z0, z1) -> sel(z0, z1)
   mark(from(z0)) -> a__from(mark(z0))
   mark(sel(z0, z1)) -> a__sel(mark(z0), mark(z1))
   mark(cons(z0, z1)) -> cons(mark(z0), z1)
   mark(s(z0)) -> s(mark(z0))
   mark(0) -> 0
Tuples:
   A__FROM(z0) -> c(MARK(z0))
   A__SEL(0, cons(z0, z1)) -> c2(MARK(z0))
   MARK(from(z0)) -> c6(A__FROM(mark(z0)), MARK(z0))
   MARK(cons(z0, z1)) -> c9(MARK(z0))
   MARK(s(z0)) -> c10(MARK(z0))
   A__SEL(s(x0), cons(x1, s(z0))) -> c3(MARK(x0))
   A__SEL(s(x0), cons(x1, 0)) -> c3(MARK(x0))
   A__SEL(s(cons(z0, z1)), cons(x1, x2)) -> c3(MARK(cons(z0, z1)))
   A__SEL(s(0), cons(x1, x2)) -> c4(A__SEL(0, mark(x2)), MARK(x2))
   A__SEL(s(x0), cons(x1, s(z0))) -> c4(MARK(s(z0)))
   A__SEL(s(cons(z0, z1)), cons(x1, x2)) -> c4(MARK(x2))
   MARK(sel(x0, from(z0))) -> c7(A__SEL(mark(x0), a__from(mark(z0))), MARK(x0))
   MARK(sel(x0, sel(z0, z1))) -> c7(A__SEL(mark(x0), a__sel(mark(z0), mark(z1))), MARK(x0))
   MARK(sel(x0, cons(z0, z1))) -> c7(A__SEL(mark(x0), cons(mark(z0), z1)), MARK(x0))
   MARK(sel(from(z0), x1)) -> c7(A__SEL(a__from(mark(z0)), mark(x1)), MARK(from(z0)))
   MARK(sel(sel(z0, z1), x1)) -> c7(A__SEL(a__sel(mark(z0), mark(z1)), mark(x1)), MARK(sel(z0, z1)))
   MARK(sel(s(z0), x1)) -> c7(A__SEL(s(mark(z0)), mark(x1)), MARK(s(z0)))
   MARK(sel(x0, s(z0))) -> c7(MARK(x0))
   MARK(sel(x0, 0)) -> c7(MARK(x0))
   MARK(sel(cons(z0, z1), x1)) -> c7(MARK(cons(z0, z1)))
   MARK(sel(0, x1)) -> c7(A__SEL(0, mark(x1)))
   MARK(sel(x0, from(z0))) -> c8(A__SEL(mark(x0), a__from(mark(z0))), MARK(from(z0)))
   MARK(sel(x0, sel(z0, z1))) -> c8(A__SEL(mark(x0), a__sel(mark(z0), mark(z1))), MARK(sel(z0, z1)))
   MARK(sel(x0, cons(z0, z1))) -> c8(A__SEL(mark(x0), cons(mark(z0), z1)), MARK(cons(z0, z1)))
   MARK(sel(from(z0), x1)) -> c8(A__SEL(a__from(mark(z0)), mark(x1)), MARK(x1))
   MARK(sel(sel(z0, z1), x1)) -> c8(A__SEL(a__sel(mark(z0), mark(z1)), mark(x1)), MARK(x1))
   MARK(sel(s(z0), x1)) -> c8(A__SEL(s(mark(z0)), mark(x1)), MARK(x1))
   MARK(sel(0, x1)) -> c8(A__SEL(0, mark(x1)), MARK(x1))
   MARK(sel(x0, s(z0))) -> c8(MARK(s(z0)))
   MARK(sel(cons(z0, z1), x1)) -> c8(MARK(x1))
   A__SEL(s(x0), cons(x1, from(x2))) -> c3(A__SEL(mark(x0), cons(mark(mark(x2)), from(s(mark(x2))))), MARK(x0))
   A__SEL(s(x0), cons(x1, from(from(z0)))) -> c3(A__SEL(mark(x0), a__from(a__from(mark(z0)))), MARK(x0))
   A__SEL(s(x0), cons(x1, from(sel(z0, z1)))) -> c3(A__SEL(mark(x0), a__from(a__sel(mark(z0), mark(z1)))), MARK(x0))
   A__SEL(s(x0), cons(x1, from(cons(z0, z1)))) -> c3(A__SEL(mark(x0), a__from(cons(mark(z0), z1))), MARK(x0))
   A__SEL(s(x0), cons(x1, from(s(z0)))) -> c3(A__SEL(mark(x0), a__from(s(mark(z0)))), MARK(x0))
   A__SEL(s(x0), cons(x1, from(0))) -> c3(A__SEL(mark(x0), a__from(0)), MARK(x0))
   A__SEL(s(from(z0)), cons(x1, from(x2))) -> c3(A__SEL(a__from(mark(z0)), a__from(mark(x2))), MARK(from(z0)))
   A__SEL(s(sel(z0, z1)), cons(x1, from(x2))) -> c3(A__SEL(a__sel(mark(z0), mark(z1)), a__from(mark(x2))), MARK(sel(z0, z1)))
   A__SEL(s(s(z0)), cons(x1, from(x2))) -> c3(A__SEL(s(mark(z0)), a__from(mark(x2))), MARK(s(z0)))
   A__SEL(s(x0), cons(x1, from(x2))) -> c3(MARK(x0))
   A__SEL(s(cons(z0, z1)), cons(x1, from(x2))) -> c3(MARK(cons(z0, z1)))
   A__SEL(s(0), cons(x1, from(x2))) -> c3(A__SEL(0, a__from(mark(x2))))
   A__SEL(s(x0), cons(x1, sel(x2, from(z0)))) -> c3(A__SEL(mark(x0), a__sel(mark(x2), a__from(mark(z0)))), MARK(x0))
   A__SEL(s(x0), cons(x1, sel(x2, sel(z0, z1)))) -> c3(A__SEL(mark(x0), a__sel(mark(x2), a__sel(mark(z0), mark(z1)))), MARK(x0))
   A__SEL(s(x0), cons(x1, sel(x2, cons(z0, z1)))) -> c3(A__SEL(mark(x0), a__sel(mark(x2), cons(mark(z0), z1))), MARK(x0))
   A__SEL(s(x0), cons(x1, sel(x2, s(z0)))) -> c3(A__SEL(mark(x0), a__sel(mark(x2), s(mark(z0)))), MARK(x0))
   A__SEL(s(x0), cons(x1, sel(x2, 0))) -> c3(A__SEL(mark(x0), a__sel(mark(x2), 0)), MARK(x0))
   A__SEL(s(x0), cons(x1, sel(from(z0), x3))) -> c3(A__SEL(mark(x0), a__sel(a__from(mark(z0)), mark(x3))), MARK(x0))
   A__SEL(s(x0), cons(x1, sel(sel(z0, z1), x3))) -> c3(A__SEL(mark(x0), a__sel(a__sel(mark(z0), mark(z1)), mark(x3))), MARK(x0))
   A__SEL(s(x0), cons(x1, sel(cons(z0, z1), x3))) -> c3(A__SEL(mark(x0), a__sel(cons(mark(z0), z1), mark(x3))), MARK(x0))
   A__SEL(s(x0), cons(x1, sel(s(z0), x3))) -> c3(A__SEL(mark(x0), a__sel(s(mark(z0)), mark(x3))), MARK(x0))
   A__SEL(s(x0), cons(x1, sel(0, x3))) -> c3(A__SEL(mark(x0), a__sel(0, mark(x3))), MARK(x0))
   A__SEL(s(from(z0)), cons(x1, sel(x2, x3))) -> c3(A__SEL(a__from(mark(z0)), a__sel(mark(x2), mark(x3))), MARK(from(z0)))
   A__SEL(s(sel(z0, z1)), cons(x1, sel(x2, x3))) -> c3(A__SEL(a__sel(mark(z0), mark(z1)), a__sel(mark(x2), mark(x3))), MARK(sel(z0, z1)))
   A__SEL(s(s(z0)), cons(x1, sel(x2, x3))) -> c3(A__SEL(s(mark(z0)), a__sel(mark(x2), mark(x3))), MARK(s(z0)))
   A__SEL(s(x0), cons(x1, sel(x2, x3))) -> c3(MARK(x0))
   A__SEL(s(cons(z0, z1)), cons(x1, sel(x2, x3))) -> c3(MARK(cons(z0, z1)))
   A__SEL(s(0), cons(x1, sel(x2, x3))) -> c3(A__SEL(0, a__sel(mark(x2), mark(x3))))
   A__SEL(s(x0), cons(x1, cons(from(z0), x3))) -> c3(A__SEL(mark(x0), cons(a__from(mark(z0)), x3)), MARK(x0))
   A__SEL(s(x0), cons(x1, cons(sel(z0, z1), x3))) -> c3(A__SEL(mark(x0), cons(a__sel(mark(z0), mark(z1)), x3)), MARK(x0))
   A__SEL(s(x0), cons(x1, cons(cons(z0, z1), x3))) -> c3(A__SEL(mark(x0), cons(cons(mark(z0), z1), x3)), MARK(x0))
   A__SEL(s(x0), cons(x1, cons(s(z0), x3))) -> c3(A__SEL(mark(x0), cons(s(mark(z0)), x3)), MARK(x0))
   A__SEL(s(x0), cons(x1, cons(0, x3))) -> c3(A__SEL(mark(x0), cons(0, x3)), MARK(x0))
   A__SEL(s(from(z0)), cons(x1, cons(x2, x3))) -> c3(A__SEL(a__from(mark(z0)), cons(mark(x2), x3)), MARK(from(z0)))
   A__SEL(s(sel(z0, z1)), cons(x1, cons(x2, x3))) -> c3(A__SEL(a__sel(mark(z0), mark(z1)), cons(mark(x2), x3)), MARK(sel(z0, z1)))
   A__SEL(s(s(z0)), cons(x1, cons(x2, x3))) -> c3(A__SEL(s(mark(z0)), cons(mark(x2), x3)), MARK(s(z0)))
   A__SEL(s(cons(z0, z1)), cons(x1, cons(x2, x3))) -> c3(MARK(cons(z0, z1)))
   A__SEL(s(0), cons(x1, cons(x2, x3))) -> c3(A__SEL(0, cons(mark(x2), x3)))
   A__SEL(s(from(from(z0))), cons(x1, x2)) -> c3(A__SEL(a__from(a__from(mark(z0))), mark(x2)), MARK(from(from(z0))))
   A__SEL(s(from(sel(z0, z1))), cons(x1, x2)) -> c3(A__SEL(a__from(a__sel(mark(z0), mark(z1))), mark(x2)), MARK(from(sel(z0, z1))))
   A__SEL(s(from(cons(z0, z1))), cons(x1, x2)) -> c3(A__SEL(a__from(cons(mark(z0), z1)), mark(x2)), MARK(from(cons(z0, z1))))
   A__SEL(s(from(s(z0))), cons(x1, x2)) -> c3(A__SEL(a__from(s(mark(z0))), mark(x2)), MARK(from(s(z0))))
   A__SEL(s(from(0)), cons(x1, x2)) -> c3(A__SEL(a__from(0), mark(x2)), MARK(from(0)))
   A__SEL(s(from(x0)), cons(x1, x2)) -> c3(MARK(from(x0)))
   A__SEL(s(from(x0)), cons(x1, s(z0))) -> c3(MARK(from(x0)))
   A__SEL(s(from(x0)), cons(x1, 0)) -> c3(MARK(from(x0)))
   A__SEL(s(sel(x0, from(z0))), cons(x2, x3)) -> c3(A__SEL(a__sel(mark(x0), a__from(mark(z0))), mark(x3)), MARK(sel(x0, from(z0))))
   A__SEL(s(sel(x0, sel(z0, z1))), cons(x2, x3)) -> c3(A__SEL(a__sel(mark(x0), a__sel(mark(z0), mark(z1))), mark(x3)), MARK(sel(x0, sel(z0, z1))))
   A__SEL(s(sel(x0, cons(z0, z1))), cons(x2, x3)) -> c3(A__SEL(a__sel(mark(x0), cons(mark(z0), z1)), mark(x3)), MARK(sel(x0, cons(z0, z1))))
   A__SEL(s(sel(x0, s(z0))), cons(x2, x3)) -> c3(A__SEL(a__sel(mark(x0), s(mark(z0))), mark(x3)), MARK(sel(x0, s(z0))))
   A__SEL(s(sel(x0, 0)), cons(x2, x3)) -> c3(A__SEL(a__sel(mark(x0), 0), mark(x3)), MARK(sel(x0, 0)))
   A__SEL(s(sel(from(z0), x1)), cons(x2, x3)) -> c3(A__SEL(a__sel(a__from(mark(z0)), mark(x1)), mark(x3)), MARK(sel(from(z0), x1)))
   A__SEL(s(sel(sel(z0, z1), x1)), cons(x2, x3)) -> c3(A__SEL(a__sel(a__sel(mark(z0), mark(z1)), mark(x1)), mark(x3)), MARK(sel(sel(z0, z1), x1)))
   A__SEL(s(sel(cons(z0, z1), x1)), cons(x2, x3)) -> c3(A__SEL(a__sel(cons(mark(z0), z1), mark(x1)), mark(x3)), MARK(sel(cons(z0, z1), x1)))
   A__SEL(s(sel(s(z0), x1)), cons(x2, x3)) -> c3(A__SEL(a__sel(s(mark(z0)), mark(x1)), mark(x3)), MARK(sel(s(z0), x1)))
   A__SEL(s(sel(0, x1)), cons(x2, x3)) -> c3(A__SEL(a__sel(0, mark(x1)), mark(x3)), MARK(sel(0, x1)))
   A__SEL(s(sel(x0, x1)), cons(x2, s(z0))) -> c3(MARK(sel(x0, x1)))
   A__SEL(s(sel(x0, x1)), cons(x2, 0)) -> c3(MARK(sel(x0, x1)))
   A__SEL(s(sel(x0, x1)), cons(x2, x3)) -> c3(MARK(sel(x0, x1)))
   A__SEL(s(s(from(z0))), cons(x1, x2)) -> c3(A__SEL(s(a__from(mark(z0))), mark(x2)), MARK(s(from(z0))))
   A__SEL(s(s(sel(z0, z1))), cons(x1, x2)) -> c3(A__SEL(s(a__sel(mark(z0), mark(z1))), mark(x2)), MARK(s(sel(z0, z1))))
   A__SEL(s(s(cons(z0, z1))), cons(x1, x2)) -> c3(A__SEL(s(cons(mark(z0), z1)), mark(x2)), MARK(s(cons(z0, z1))))
   A__SEL(s(s(s(z0))), cons(x1, x2)) -> c3(A__SEL(s(s(mark(z0))), mark(x2)), MARK(s(s(z0))))
   A__SEL(s(s(0)), cons(x1, x2)) -> c3(A__SEL(s(0), mark(x2)), MARK(s(0)))
   A__SEL(s(s(x0)), cons(x1, x2)) -> c3(MARK(s(x0)))
   A__SEL(s(s(x0)), cons(x1, s(z0))) -> c3(MARK(s(x0)))
   A__SEL(s(s(x0)), cons(x1, 0)) -> c3(MARK(s(x0)))
   A__SEL(s(x0), cons(x1, from(x2))) -> c4(A__SEL(mark(x0), cons(mark(mark(x2)), from(s(mark(x2))))), MARK(from(x2)))
   A__SEL(s(x0), cons(x1, from(from(z0)))) -> c4(A__SEL(mark(x0), a__from(a__from(mark(z0)))), MARK(from(from(z0))))
   A__SEL(s(x0), cons(x1, from(sel(z0, z1)))) -> c4(A__SEL(mark(x0), a__from(a__sel(mark(z0), mark(z1)))), MARK(from(sel(z0, z1))))
   A__SEL(s(x0), cons(x1, from(cons(z0, z1)))) -> c4(A__SEL(mark(x0), a__from(cons(mark(z0), z1))), MARK(from(cons(z0, z1))))
   A__SEL(s(x0), cons(x1, from(s(z0)))) -> c4(A__SEL(mark(x0), a__from(s(mark(z0)))), MARK(from(s(z0))))
   A__SEL(s(x0), cons(x1, from(0))) -> c4(A__SEL(mark(x0), a__from(0)), MARK(from(0)))
   A__SEL(s(from(z0)), cons(x1, from(x2))) -> c4(A__SEL(a__from(mark(z0)), a__from(mark(x2))), MARK(from(x2)))
   A__SEL(s(sel(z0, z1)), cons(x1, from(x2))) -> c4(A__SEL(a__sel(mark(z0), mark(z1)), a__from(mark(x2))), MARK(from(x2)))
   A__SEL(s(s(z0)), cons(x1, from(x2))) -> c4(A__SEL(s(mark(z0)), a__from(mark(x2))), MARK(from(x2)))
   A__SEL(s(0), cons(x1, from(x2))) -> c4(A__SEL(0, a__from(mark(x2))), MARK(from(x2)))
   A__SEL(s(x0), cons(x1, from(x2))) -> c4(MARK(from(x2)))
   A__SEL(s(cons(z0, z1)), cons(x1, from(x2))) -> c4(MARK(from(x2)))
   A__SEL(s(x0), cons(x1, sel(x2, from(z0)))) -> c4(A__SEL(mark(x0), a__sel(mark(x2), a__from(mark(z0)))), MARK(sel(x2, from(z0))))
   A__SEL(s(x0), cons(x1, sel(x2, sel(z0, z1)))) -> c4(A__SEL(mark(x0), a__sel(mark(x2), a__sel(mark(z0), mark(z1)))), MARK(sel(x2, sel(z0, z1))))
   A__SEL(s(x0), cons(x1, sel(x2, cons(z0, z1)))) -> c4(A__SEL(mark(x0), a__sel(mark(x2), cons(mark(z0), z1))), MARK(sel(x2, cons(z0, z1))))
   A__SEL(s(x0), cons(x1, sel(x2, s(z0)))) -> c4(A__SEL(mark(x0), a__sel(mark(x2), s(mark(z0)))), MARK(sel(x2, s(z0))))
   A__SEL(s(x0), cons(x1, sel(x2, 0))) -> c4(A__SEL(mark(x0), a__sel(mark(x2), 0)), MARK(sel(x2, 0)))
   A__SEL(s(x0), cons(x1, sel(from(z0), x3))) -> c4(A__SEL(mark(x0), a__sel(a__from(mark(z0)), mark(x3))), MARK(sel(from(z0), x3)))
   A__SEL(s(x0), cons(x1, sel(sel(z0, z1), x3))) -> c4(A__SEL(mark(x0), a__sel(a__sel(mark(z0), mark(z1)), mark(x3))), MARK(sel(sel(z0, z1), x3)))
   A__SEL(s(x0), cons(x1, sel(cons(z0, z1), x3))) -> c4(A__SEL(mark(x0), a__sel(cons(mark(z0), z1), mark(x3))), MARK(sel(cons(z0, z1), x3)))
   A__SEL(s(x0), cons(x1, sel(s(z0), x3))) -> c4(A__SEL(mark(x0), a__sel(s(mark(z0)), mark(x3))), MARK(sel(s(z0), x3)))
   A__SEL(s(x0), cons(x1, sel(0, x3))) -> c4(A__SEL(mark(x0), a__sel(0, mark(x3))), MARK(sel(0, x3)))
   A__SEL(s(from(z0)), cons(x1, sel(x2, x3))) -> c4(A__SEL(a__from(mark(z0)), a__sel(mark(x2), mark(x3))), MARK(sel(x2, x3)))
   A__SEL(s(sel(z0, z1)), cons(x1, sel(x2, x3))) -> c4(A__SEL(a__sel(mark(z0), mark(z1)), a__sel(mark(x2), mark(x3))), MARK(sel(x2, x3)))
   A__SEL(s(s(z0)), cons(x1, sel(x2, x3))) -> c4(A__SEL(s(mark(z0)), a__sel(mark(x2), mark(x3))), MARK(sel(x2, x3)))
   A__SEL(s(0), cons(x1, sel(x2, x3))) -> c4(A__SEL(0, a__sel(mark(x2), mark(x3))), MARK(sel(x2, x3)))
   A__SEL(s(x0), cons(x1, sel(x2, x3))) -> c4(MARK(sel(x2, x3)))
   A__SEL(s(cons(z0, z1)), cons(x1, sel(x2, x3))) -> c4(MARK(sel(x2, x3)))
   A__SEL(s(x0), cons(x1, cons(from(z0), x3))) -> c4(A__SEL(mark(x0), cons(a__from(mark(z0)), x3)), MARK(cons(from(z0), x3)))
   A__SEL(s(x0), cons(x1, cons(sel(z0, z1), x3))) -> c4(A__SEL(mark(x0), cons(a__sel(mark(z0), mark(z1)), x3)), MARK(cons(sel(z0, z1), x3)))
   A__SEL(s(x0), cons(x1, cons(cons(z0, z1), x3))) -> c4(A__SEL(mark(x0), cons(cons(mark(z0), z1), x3)), MARK(cons(cons(z0, z1), x3)))
   A__SEL(s(x0), cons(x1, cons(s(z0), x3))) -> c4(A__SEL(mark(x0), cons(s(mark(z0)), x3)), MARK(cons(s(z0), x3)))
   A__SEL(s(x0), cons(x1, cons(0, x3))) -> c4(A__SEL(mark(x0), cons(0, x3)), MARK(cons(0, x3)))
   A__SEL(s(from(z0)), cons(x1, cons(x2, x3))) -> c4(A__SEL(a__from(mark(z0)), cons(mark(x2), x3)), MARK(cons(x2, x3)))
   A__SEL(s(sel(z0, z1)), cons(x1, cons(x2, x3))) -> c4(A__SEL(a__sel(mark(z0), mark(z1)), cons(mark(x2), x3)), MARK(cons(x2, x3)))
   A__SEL(s(s(z0)), cons(x1, cons(x2, x3))) -> c4(A__SEL(s(mark(z0)), cons(mark(x2), x3)), MARK(cons(x2, x3)))
   A__SEL(s(0), cons(x1, cons(x2, x3))) -> c4(A__SEL(0, cons(mark(x2), x3)), MARK(cons(x2, x3)))
   A__SEL(s(x0), cons(x1, cons(x2, x3))) -> c4(MARK(cons(x2, x3)))
   A__SEL(s(cons(z0, z1)), cons(x1, cons(x2, x3))) -> c4(MARK(cons(x2, x3)))
   A__SEL(s(from(from(z0))), cons(x1, x2)) -> c4(A__SEL(a__from(a__from(mark(z0))), mark(x2)), MARK(x2))
   A__SEL(s(from(sel(z0, z1))), cons(x1, x2)) -> c4(A__SEL(a__from(a__sel(mark(z0), mark(z1))), mark(x2)), MARK(x2))
   A__SEL(s(from(cons(z0, z1))), cons(x1, x2)) -> c4(A__SEL(a__from(cons(mark(z0), z1)), mark(x2)), MARK(x2))
   A__SEL(s(from(s(z0))), cons(x1, x2)) -> c4(A__SEL(a__from(s(mark(z0))), mark(x2)), MARK(x2))
   A__SEL(s(from(0)), cons(x1, x2)) -> c4(A__SEL(a__from(0), mark(x2)), MARK(x2))
   A__SEL(s(from(x0)), cons(x1, s(z0))) -> c4(MARK(s(z0)))
   A__SEL(s(from(x0)), cons(x1, x2)) -> c4(MARK(x2))
   A__SEL(s(sel(x0, from(z0))), cons(x2, x3)) -> c4(A__SEL(a__sel(mark(x0), a__from(mark(z0))), mark(x3)), MARK(x3))
   A__SEL(s(sel(x0, sel(z0, z1))), cons(x2, x3)) -> c4(A__SEL(a__sel(mark(x0), a__sel(mark(z0), mark(z1))), mark(x3)), MARK(x3))
   A__SEL(s(sel(x0, cons(z0, z1))), cons(x2, x3)) -> c4(A__SEL(a__sel(mark(x0), cons(mark(z0), z1)), mark(x3)), MARK(x3))
   A__SEL(s(sel(x0, s(z0))), cons(x2, x3)) -> c4(A__SEL(a__sel(mark(x0), s(mark(z0))), mark(x3)), MARK(x3))
   A__SEL(s(sel(x0, 0)), cons(x2, x3)) -> c4(A__SEL(a__sel(mark(x0), 0), mark(x3)), MARK(x3))
   A__SEL(s(sel(from(z0), x1)), cons(x2, x3)) -> c4(A__SEL(a__sel(a__from(mark(z0)), mark(x1)), mark(x3)), MARK(x3))
   A__SEL(s(sel(sel(z0, z1), x1)), cons(x2, x3)) -> c4(A__SEL(a__sel(a__sel(mark(z0), mark(z1)), mark(x1)), mark(x3)), MARK(x3))
   A__SEL(s(sel(cons(z0, z1), x1)), cons(x2, x3)) -> c4(A__SEL(a__sel(cons(mark(z0), z1), mark(x1)), mark(x3)), MARK(x3))
   A__SEL(s(sel(s(z0), x1)), cons(x2, x3)) -> c4(A__SEL(a__sel(s(mark(z0)), mark(x1)), mark(x3)), MARK(x3))
   A__SEL(s(sel(0, x1)), cons(x2, x3)) -> c4(A__SEL(a__sel(0, mark(x1)), mark(x3)), MARK(x3))
   A__SEL(s(sel(x0, x1)), cons(x2, s(z0))) -> c4(MARK(s(z0)))
   A__SEL(s(sel(x0, x1)), cons(x2, x3)) -> c4(MARK(x3))
   A__SEL(s(s(x0)), cons(x1, s(z0))) -> c4(A__SEL(s(mark(x0)), s(mark(z0))), MARK(s(z0)))
   A__SEL(s(s(x0)), cons(x1, 0)) -> c4(A__SEL(s(mark(x0)), 0), MARK(0))
   A__SEL(s(s(from(z0))), cons(x1, x2)) -> c4(A__SEL(s(a__from(mark(z0))), mark(x2)), MARK(x2))
   A__SEL(s(s(sel(z0, z1))), cons(x1, x2)) -> c4(A__SEL(s(a__sel(mark(z0), mark(z1))), mark(x2)), MARK(x2))
   A__SEL(s(s(cons(z0, z1))), cons(x1, x2)) -> c4(A__SEL(s(cons(mark(z0), z1)), mark(x2)), MARK(x2))
   A__SEL(s(s(s(z0))), cons(x1, x2)) -> c4(A__SEL(s(s(mark(z0))), mark(x2)), MARK(x2))
   A__SEL(s(s(0)), cons(x1, x2)) -> c4(A__SEL(s(0), mark(x2)), MARK(x2))
S tuples:
   A__FROM(z0) -> c(MARK(z0))
   A__SEL(0, cons(z0, z1)) -> c2(MARK(z0))
   MARK(from(z0)) -> c6(A__FROM(mark(z0)), MARK(z0))
   MARK(cons(z0, z1)) -> c9(MARK(z0))
   MARK(s(z0)) -> c10(MARK(z0))
   A__SEL(s(x0), cons(x1, s(z0))) -> c3(MARK(x0))
   A__SEL(s(x0), cons(x1, 0)) -> c3(MARK(x0))
   A__SEL(s(cons(z0, z1)), cons(x1, x2)) -> c3(MARK(cons(z0, z1)))
   A__SEL(s(0), cons(x1, x2)) -> c4(A__SEL(0, mark(x2)), MARK(x2))
   A__SEL(s(x0), cons(x1, s(z0))) -> c4(MARK(s(z0)))
   A__SEL(s(cons(z0, z1)), cons(x1, x2)) -> c4(MARK(x2))
   MARK(sel(x0, from(z0))) -> c7(A__SEL(mark(x0), a__from(mark(z0))), MARK(x0))
   MARK(sel(x0, sel(z0, z1))) -> c7(A__SEL(mark(x0), a__sel(mark(z0), mark(z1))), MARK(x0))
   MARK(sel(x0, cons(z0, z1))) -> c7(A__SEL(mark(x0), cons(mark(z0), z1)), MARK(x0))
   MARK(sel(from(z0), x1)) -> c7(A__SEL(a__from(mark(z0)), mark(x1)), MARK(from(z0)))
   MARK(sel(sel(z0, z1), x1)) -> c7(A__SEL(a__sel(mark(z0), mark(z1)), mark(x1)), MARK(sel(z0, z1)))
   MARK(sel(s(z0), x1)) -> c7(A__SEL(s(mark(z0)), mark(x1)), MARK(s(z0)))
   MARK(sel(x0, s(z0))) -> c7(MARK(x0))
   MARK(sel(x0, 0)) -> c7(MARK(x0))
   MARK(sel(cons(z0, z1), x1)) -> c7(MARK(cons(z0, z1)))
   MARK(sel(0, x1)) -> c7(A__SEL(0, mark(x1)))
   MARK(sel(x0, from(z0))) -> c8(A__SEL(mark(x0), a__from(mark(z0))), MARK(from(z0)))
   MARK(sel(x0, sel(z0, z1))) -> c8(A__SEL(mark(x0), a__sel(mark(z0), mark(z1))), MARK(sel(z0, z1)))
   MARK(sel(x0, cons(z0, z1))) -> c8(A__SEL(mark(x0), cons(mark(z0), z1)), MARK(cons(z0, z1)))
   MARK(sel(from(z0), x1)) -> c8(A__SEL(a__from(mark(z0)), mark(x1)), MARK(x1))
   MARK(sel(sel(z0, z1), x1)) -> c8(A__SEL(a__sel(mark(z0), mark(z1)), mark(x1)), MARK(x1))
   MARK(sel(s(z0), x1)) -> c8(A__SEL(s(mark(z0)), mark(x1)), MARK(x1))
   MARK(sel(0, x1)) -> c8(A__SEL(0, mark(x1)), MARK(x1))
   MARK(sel(x0, s(z0))) -> c8(MARK(s(z0)))
   MARK(sel(cons(z0, z1), x1)) -> c8(MARK(x1))
   A__SEL(s(x0), cons(x1, from(x2))) -> c3(A__SEL(mark(x0), cons(mark(mark(x2)), from(s(mark(x2))))), MARK(x0))
   A__SEL(s(x0), cons(x1, from(from(z0)))) -> c3(A__SEL(mark(x0), a__from(a__from(mark(z0)))), MARK(x0))
   A__SEL(s(x0), cons(x1, from(sel(z0, z1)))) -> c3(A__SEL(mark(x0), a__from(a__sel(mark(z0), mark(z1)))), MARK(x0))
   A__SEL(s(x0), cons(x1, from(cons(z0, z1)))) -> c3(A__SEL(mark(x0), a__from(cons(mark(z0), z1))), MARK(x0))
   A__SEL(s(x0), cons(x1, from(s(z0)))) -> c3(A__SEL(mark(x0), a__from(s(mark(z0)))), MARK(x0))
   A__SEL(s(x0), cons(x1, from(0))) -> c3(A__SEL(mark(x0), a__from(0)), MARK(x0))
   A__SEL(s(from(z0)), cons(x1, from(x2))) -> c3(A__SEL(a__from(mark(z0)), a__from(mark(x2))), MARK(from(z0)))
   A__SEL(s(sel(z0, z1)), cons(x1, from(x2))) -> c3(A__SEL(a__sel(mark(z0), mark(z1)), a__from(mark(x2))), MARK(sel(z0, z1)))
   A__SEL(s(s(z0)), cons(x1, from(x2))) -> c3(A__SEL(s(mark(z0)), a__from(mark(x2))), MARK(s(z0)))
   A__SEL(s(x0), cons(x1, from(x2))) -> c3(MARK(x0))
   A__SEL(s(cons(z0, z1)), cons(x1, from(x2))) -> c3(MARK(cons(z0, z1)))
   A__SEL(s(0), cons(x1, from(x2))) -> c3(A__SEL(0, a__from(mark(x2))))
   A__SEL(s(x0), cons(x1, sel(x2, from(z0)))) -> c3(A__SEL(mark(x0), a__sel(mark(x2), a__from(mark(z0)))), MARK(x0))
   A__SEL(s(x0), cons(x1, sel(x2, sel(z0, z1)))) -> c3(A__SEL(mark(x0), a__sel(mark(x2), a__sel(mark(z0), mark(z1)))), MARK(x0))
   A__SEL(s(x0), cons(x1, sel(x2, cons(z0, z1)))) -> c3(A__SEL(mark(x0), a__sel(mark(x2), cons(mark(z0), z1))), MARK(x0))
   A__SEL(s(x0), cons(x1, sel(x2, s(z0)))) -> c3(A__SEL(mark(x0), a__sel(mark(x2), s(mark(z0)))), MARK(x0))
   A__SEL(s(x0), cons(x1, sel(x2, 0))) -> c3(A__SEL(mark(x0), a__sel(mark(x2), 0)), MARK(x0))
   A__SEL(s(x0), cons(x1, sel(from(z0), x3))) -> c3(A__SEL(mark(x0), a__sel(a__from(mark(z0)), mark(x3))), MARK(x0))
   A__SEL(s(x0), cons(x1, sel(sel(z0, z1), x3))) -> c3(A__SEL(mark(x0), a__sel(a__sel(mark(z0), mark(z1)), mark(x3))), MARK(x0))
   A__SEL(s(x0), cons(x1, sel(cons(z0, z1), x3))) -> c3(A__SEL(mark(x0), a__sel(cons(mark(z0), z1), mark(x3))), MARK(x0))
   A__SEL(s(x0), cons(x1, sel(s(z0), x3))) -> c3(A__SEL(mark(x0), a__sel(s(mark(z0)), mark(x3))), MARK(x0))
   A__SEL(s(x0), cons(x1, sel(0, x3))) -> c3(A__SEL(mark(x0), a__sel(0, mark(x3))), MARK(x0))
   A__SEL(s(from(z0)), cons(x1, sel(x2, x3))) -> c3(A__SEL(a__from(mark(z0)), a__sel(mark(x2), mark(x3))), MARK(from(z0)))
   A__SEL(s(sel(z0, z1)), cons(x1, sel(x2, x3))) -> c3(A__SEL(a__sel(mark(z0), mark(z1)), a__sel(mark(x2), mark(x3))), MARK(sel(z0, z1)))
   A__SEL(s(s(z0)), cons(x1, sel(x2, x3))) -> c3(A__SEL(s(mark(z0)), a__sel(mark(x2), mark(x3))), MARK(s(z0)))
   A__SEL(s(x0), cons(x1, sel(x2, x3))) -> c3(MARK(x0))
   A__SEL(s(cons(z0, z1)), cons(x1, sel(x2, x3))) -> c3(MARK(cons(z0, z1)))
   A__SEL(s(0), cons(x1, sel(x2, x3))) -> c3(A__SEL(0, a__sel(mark(x2), mark(x3))))
   A__SEL(s(x0), cons(x1, cons(from(z0), x3))) -> c3(A__SEL(mark(x0), cons(a__from(mark(z0)), x3)), MARK(x0))
   A__SEL(s(x0), cons(x1, cons(sel(z0, z1), x3))) -> c3(A__SEL(mark(x0), cons(a__sel(mark(z0), mark(z1)), x3)), MARK(x0))
   A__SEL(s(x0), cons(x1, cons(cons(z0, z1), x3))) -> c3(A__SEL(mark(x0), cons(cons(mark(z0), z1), x3)), MARK(x0))
   A__SEL(s(x0), cons(x1, cons(s(z0), x3))) -> c3(A__SEL(mark(x0), cons(s(mark(z0)), x3)), MARK(x0))
   A__SEL(s(x0), cons(x1, cons(0, x3))) -> c3(A__SEL(mark(x0), cons(0, x3)), MARK(x0))
   A__SEL(s(from(z0)), cons(x1, cons(x2, x3))) -> c3(A__SEL(a__from(mark(z0)), cons(mark(x2), x3)), MARK(from(z0)))
   A__SEL(s(sel(z0, z1)), cons(x1, cons(x2, x3))) -> c3(A__SEL(a__sel(mark(z0), mark(z1)), cons(mark(x2), x3)), MARK(sel(z0, z1)))
   A__SEL(s(s(z0)), cons(x1, cons(x2, x3))) -> c3(A__SEL(s(mark(z0)), cons(mark(x2), x3)), MARK(s(z0)))
   A__SEL(s(cons(z0, z1)), cons(x1, cons(x2, x3))) -> c3(MARK(cons(z0, z1)))
   A__SEL(s(0), cons(x1, cons(x2, x3))) -> c3(A__SEL(0, cons(mark(x2), x3)))
   A__SEL(s(from(from(z0))), cons(x1, x2)) -> c3(A__SEL(a__from(a__from(mark(z0))), mark(x2)), MARK(from(from(z0))))
   A__SEL(s(from(sel(z0, z1))), cons(x1, x2)) -> c3(A__SEL(a__from(a__sel(mark(z0), mark(z1))), mark(x2)), MARK(from(sel(z0, z1))))
   A__SEL(s(from(cons(z0, z1))), cons(x1, x2)) -> c3(A__SEL(a__from(cons(mark(z0), z1)), mark(x2)), MARK(from(cons(z0, z1))))
   A__SEL(s(from(s(z0))), cons(x1, x2)) -> c3(A__SEL(a__from(s(mark(z0))), mark(x2)), MARK(from(s(z0))))
   A__SEL(s(from(0)), cons(x1, x2)) -> c3(A__SEL(a__from(0), mark(x2)), MARK(from(0)))
   A__SEL(s(from(x0)), cons(x1, x2)) -> c3(MARK(from(x0)))
   A__SEL(s(from(x0)), cons(x1, s(z0))) -> c3(MARK(from(x0)))
   A__SEL(s(from(x0)), cons(x1, 0)) -> c3(MARK(from(x0)))
   A__SEL(s(sel(x0, from(z0))), cons(x2, x3)) -> c3(A__SEL(a__sel(mark(x0), a__from(mark(z0))), mark(x3)), MARK(sel(x0, from(z0))))
   A__SEL(s(sel(x0, sel(z0, z1))), cons(x2, x3)) -> c3(A__SEL(a__sel(mark(x0), a__sel(mark(z0), mark(z1))), mark(x3)), MARK(sel(x0, sel(z0, z1))))
   A__SEL(s(sel(x0, cons(z0, z1))), cons(x2, x3)) -> c3(A__SEL(a__sel(mark(x0), cons(mark(z0), z1)), mark(x3)), MARK(sel(x0, cons(z0, z1))))
   A__SEL(s(sel(x0, s(z0))), cons(x2, x3)) -> c3(A__SEL(a__sel(mark(x0), s(mark(z0))), mark(x3)), MARK(sel(x0, s(z0))))
   A__SEL(s(sel(x0, 0)), cons(x2, x3)) -> c3(A__SEL(a__sel(mark(x0), 0), mark(x3)), MARK(sel(x0, 0)))
   A__SEL(s(sel(from(z0), x1)), cons(x2, x3)) -> c3(A__SEL(a__sel(a__from(mark(z0)), mark(x1)), mark(x3)), MARK(sel(from(z0), x1)))
   A__SEL(s(sel(sel(z0, z1), x1)), cons(x2, x3)) -> c3(A__SEL(a__sel(a__sel(mark(z0), mark(z1)), mark(x1)), mark(x3)), MARK(sel(sel(z0, z1), x1)))
   A__SEL(s(sel(cons(z0, z1), x1)), cons(x2, x3)) -> c3(A__SEL(a__sel(cons(mark(z0), z1), mark(x1)), mark(x3)), MARK(sel(cons(z0, z1), x1)))
   A__SEL(s(sel(s(z0), x1)), cons(x2, x3)) -> c3(A__SEL(a__sel(s(mark(z0)), mark(x1)), mark(x3)), MARK(sel(s(z0), x1)))
   A__SEL(s(sel(0, x1)), cons(x2, x3)) -> c3(A__SEL(a__sel(0, mark(x1)), mark(x3)), MARK(sel(0, x1)))
   A__SEL(s(sel(x0, x1)), cons(x2, s(z0))) -> c3(MARK(sel(x0, x1)))
   A__SEL(s(sel(x0, x1)), cons(x2, 0)) -> c3(MARK(sel(x0, x1)))
   A__SEL(s(sel(x0, x1)), cons(x2, x3)) -> c3(MARK(sel(x0, x1)))
   A__SEL(s(s(from(z0))), cons(x1, x2)) -> c3(A__SEL(s(a__from(mark(z0))), mark(x2)), MARK(s(from(z0))))
   A__SEL(s(s(sel(z0, z1))), cons(x1, x2)) -> c3(A__SEL(s(a__sel(mark(z0), mark(z1))), mark(x2)), MARK(s(sel(z0, z1))))
   A__SEL(s(s(cons(z0, z1))), cons(x1, x2)) -> c3(A__SEL(s(cons(mark(z0), z1)), mark(x2)), MARK(s(cons(z0, z1))))
   A__SEL(s(s(s(z0))), cons(x1, x2)) -> c3(A__SEL(s(s(mark(z0))), mark(x2)), MARK(s(s(z0))))
   A__SEL(s(s(0)), cons(x1, x2)) -> c3(A__SEL(s(0), mark(x2)), MARK(s(0)))
   A__SEL(s(s(x0)), cons(x1, x2)) -> c3(MARK(s(x0)))
   A__SEL(s(s(x0)), cons(x1, s(z0))) -> c3(MARK(s(x0)))
   A__SEL(s(s(x0)), cons(x1, 0)) -> c3(MARK(s(x0)))
   A__SEL(s(x0), cons(x1, from(x2))) -> c4(A__SEL(mark(x0), cons(mark(mark(x2)), from(s(mark(x2))))), MARK(from(x2)))
   A__SEL(s(x0), cons(x1, from(from(z0)))) -> c4(A__SEL(mark(x0), a__from(a__from(mark(z0)))), MARK(from(from(z0))))
   A__SEL(s(x0), cons(x1, from(sel(z0, z1)))) -> c4(A__SEL(mark(x0), a__from(a__sel(mark(z0), mark(z1)))), MARK(from(sel(z0, z1))))
   A__SEL(s(x0), cons(x1, from(cons(z0, z1)))) -> c4(A__SEL(mark(x0), a__from(cons(mark(z0), z1))), MARK(from(cons(z0, z1))))
   A__SEL(s(x0), cons(x1, from(s(z0)))) -> c4(A__SEL(mark(x0), a__from(s(mark(z0)))), MARK(from(s(z0))))
   A__SEL(s(x0), cons(x1, from(0))) -> c4(A__SEL(mark(x0), a__from(0)), MARK(from(0)))
   A__SEL(s(from(z0)), cons(x1, from(x2))) -> c4(A__SEL(a__from(mark(z0)), a__from(mark(x2))), MARK(from(x2)))
   A__SEL(s(sel(z0, z1)), cons(x1, from(x2))) -> c4(A__SEL(a__sel(mark(z0), mark(z1)), a__from(mark(x2))), MARK(from(x2)))
   A__SEL(s(s(z0)), cons(x1, from(x2))) -> c4(A__SEL(s(mark(z0)), a__from(mark(x2))), MARK(from(x2)))
   A__SEL(s(0), cons(x1, from(x2))) -> c4(A__SEL(0, a__from(mark(x2))), MARK(from(x2)))
   A__SEL(s(x0), cons(x1, from(x2))) -> c4(MARK(from(x2)))
   A__SEL(s(cons(z0, z1)), cons(x1, from(x2))) -> c4(MARK(from(x2)))
   A__SEL(s(x0), cons(x1, sel(x2, from(z0)))) -> c4(A__SEL(mark(x0), a__sel(mark(x2), a__from(mark(z0)))), MARK(sel(x2, from(z0))))
   A__SEL(s(x0), cons(x1, sel(x2, sel(z0, z1)))) -> c4(A__SEL(mark(x0), a__sel(mark(x2), a__sel(mark(z0), mark(z1)))), MARK(sel(x2, sel(z0, z1))))
   A__SEL(s(x0), cons(x1, sel(x2, cons(z0, z1)))) -> c4(A__SEL(mark(x0), a__sel(mark(x2), cons(mark(z0), z1))), MARK(sel(x2, cons(z0, z1))))
   A__SEL(s(x0), cons(x1, sel(x2, s(z0)))) -> c4(A__SEL(mark(x0), a__sel(mark(x2), s(mark(z0)))), MARK(sel(x2, s(z0))))
   A__SEL(s(x0), cons(x1, sel(x2, 0))) -> c4(A__SEL(mark(x0), a__sel(mark(x2), 0)), MARK(sel(x2, 0)))
   A__SEL(s(x0), cons(x1, sel(from(z0), x3))) -> c4(A__SEL(mark(x0), a__sel(a__from(mark(z0)), mark(x3))), MARK(sel(from(z0), x3)))
   A__SEL(s(x0), cons(x1, sel(sel(z0, z1), x3))) -> c4(A__SEL(mark(x0), a__sel(a__sel(mark(z0), mark(z1)), mark(x3))), MARK(sel(sel(z0, z1), x3)))
   A__SEL(s(x0), cons(x1, sel(cons(z0, z1), x3))) -> c4(A__SEL(mark(x0), a__sel(cons(mark(z0), z1), mark(x3))), MARK(sel(cons(z0, z1), x3)))
   A__SEL(s(x0), cons(x1, sel(s(z0), x3))) -> c4(A__SEL(mark(x0), a__sel(s(mark(z0)), mark(x3))), MARK(sel(s(z0), x3)))
   A__SEL(s(x0), cons(x1, sel(0, x3))) -> c4(A__SEL(mark(x0), a__sel(0, mark(x3))), MARK(sel(0, x3)))
   A__SEL(s(from(z0)), cons(x1, sel(x2, x3))) -> c4(A__SEL(a__from(mark(z0)), a__sel(mark(x2), mark(x3))), MARK(sel(x2, x3)))
   A__SEL(s(sel(z0, z1)), cons(x1, sel(x2, x3))) -> c4(A__SEL(a__sel(mark(z0), mark(z1)), a__sel(mark(x2), mark(x3))), MARK(sel(x2, x3)))
   A__SEL(s(s(z0)), cons(x1, sel(x2, x3))) -> c4(A__SEL(s(mark(z0)), a__sel(mark(x2), mark(x3))), MARK(sel(x2, x3)))
   A__SEL(s(0), cons(x1, sel(x2, x3))) -> c4(A__SEL(0, a__sel(mark(x2), mark(x3))), MARK(sel(x2, x3)))
   A__SEL(s(x0), cons(x1, sel(x2, x3))) -> c4(MARK(sel(x2, x3)))
   A__SEL(s(cons(z0, z1)), cons(x1, sel(x2, x3))) -> c4(MARK(sel(x2, x3)))
   A__SEL(s(x0), cons(x1, cons(from(z0), x3))) -> c4(A__SEL(mark(x0), cons(a__from(mark(z0)), x3)), MARK(cons(from(z0), x3)))
   A__SEL(s(x0), cons(x1, cons(sel(z0, z1), x3))) -> c4(A__SEL(mark(x0), cons(a__sel(mark(z0), mark(z1)), x3)), MARK(cons(sel(z0, z1), x3)))
   A__SEL(s(x0), cons(x1, cons(cons(z0, z1), x3))) -> c4(A__SEL(mark(x0), cons(cons(mark(z0), z1), x3)), MARK(cons(cons(z0, z1), x3)))
   A__SEL(s(x0), cons(x1, cons(s(z0), x3))) -> c4(A__SEL(mark(x0), cons(s(mark(z0)), x3)), MARK(cons(s(z0), x3)))
   A__SEL(s(x0), cons(x1, cons(0, x3))) -> c4(A__SEL(mark(x0), cons(0, x3)), MARK(cons(0, x3)))
   A__SEL(s(from(z0)), cons(x1, cons(x2, x3))) -> c4(A__SEL(a__from(mark(z0)), cons(mark(x2), x3)), MARK(cons(x2, x3)))
   A__SEL(s(sel(z0, z1)), cons(x1, cons(x2, x3))) -> c4(A__SEL(a__sel(mark(z0), mark(z1)), cons(mark(x2), x3)), MARK(cons(x2, x3)))
   A__SEL(s(s(z0)), cons(x1, cons(x2, x3))) -> c4(A__SEL(s(mark(z0)), cons(mark(x2), x3)), MARK(cons(x2, x3)))
   A__SEL(s(0), cons(x1, cons(x2, x3))) -> c4(A__SEL(0, cons(mark(x2), x3)), MARK(cons(x2, x3)))
   A__SEL(s(x0), cons(x1, cons(x2, x3))) -> c4(MARK(cons(x2, x3)))
   A__SEL(s(cons(z0, z1)), cons(x1, cons(x2, x3))) -> c4(MARK(cons(x2, x3)))
   A__SEL(s(from(from(z0))), cons(x1, x2)) -> c4(A__SEL(a__from(a__from(mark(z0))), mark(x2)), MARK(x2))
   A__SEL(s(from(sel(z0, z1))), cons(x1, x2)) -> c4(A__SEL(a__from(a__sel(mark(z0), mark(z1))), mark(x2)), MARK(x2))
   A__SEL(s(from(cons(z0, z1))), cons(x1, x2)) -> c4(A__SEL(a__from(cons(mark(z0), z1)), mark(x2)), MARK(x2))
   A__SEL(s(from(s(z0))), cons(x1, x2)) -> c4(A__SEL(a__from(s(mark(z0))), mark(x2)), MARK(x2))
   A__SEL(s(from(0)), cons(x1, x2)) -> c4(A__SEL(a__from(0), mark(x2)), MARK(x2))
   A__SEL(s(from(x0)), cons(x1, s(z0))) -> c4(MARK(s(z0)))
   A__SEL(s(from(x0)), cons(x1, x2)) -> c4(MARK(x2))
   A__SEL(s(sel(x0, from(z0))), cons(x2, x3)) -> c4(A__SEL(a__sel(mark(x0), a__from(mark(z0))), mark(x3)), MARK(x3))
   A__SEL(s(sel(x0, sel(z0, z1))), cons(x2, x3)) -> c4(A__SEL(a__sel(mark(x0), a__sel(mark(z0), mark(z1))), mark(x3)), MARK(x3))
   A__SEL(s(sel(x0, cons(z0, z1))), cons(x2, x3)) -> c4(A__SEL(a__sel(mark(x0), cons(mark(z0), z1)), mark(x3)), MARK(x3))
   A__SEL(s(sel(x0, s(z0))), cons(x2, x3)) -> c4(A__SEL(a__sel(mark(x0), s(mark(z0))), mark(x3)), MARK(x3))
   A__SEL(s(sel(x0, 0)), cons(x2, x3)) -> c4(A__SEL(a__sel(mark(x0), 0), mark(x3)), MARK(x3))
   A__SEL(s(sel(from(z0), x1)), cons(x2, x3)) -> c4(A__SEL(a__sel(a__from(mark(z0)), mark(x1)), mark(x3)), MARK(x3))
   A__SEL(s(sel(sel(z0, z1), x1)), cons(x2, x3)) -> c4(A__SEL(a__sel(a__sel(mark(z0), mark(z1)), mark(x1)), mark(x3)), MARK(x3))
   A__SEL(s(sel(cons(z0, z1), x1)), cons(x2, x3)) -> c4(A__SEL(a__sel(cons(mark(z0), z1), mark(x1)), mark(x3)), MARK(x3))
   A__SEL(s(sel(s(z0), x1)), cons(x2, x3)) -> c4(A__SEL(a__sel(s(mark(z0)), mark(x1)), mark(x3)), MARK(x3))
   A__SEL(s(sel(0, x1)), cons(x2, x3)) -> c4(A__SEL(a__sel(0, mark(x1)), mark(x3)), MARK(x3))
   A__SEL(s(sel(x0, x1)), cons(x2, s(z0))) -> c4(MARK(s(z0)))
   A__SEL(s(sel(x0, x1)), cons(x2, x3)) -> c4(MARK(x3))
   A__SEL(s(s(x0)), cons(x1, s(z0))) -> c4(A__SEL(s(mark(x0)), s(mark(z0))), MARK(s(z0)))
   A__SEL(s(s(x0)), cons(x1, 0)) -> c4(A__SEL(s(mark(x0)), 0), MARK(0))
   A__SEL(s(s(from(z0))), cons(x1, x2)) -> c4(A__SEL(s(a__from(mark(z0))), mark(x2)), MARK(x2))
   A__SEL(s(s(sel(z0, z1))), cons(x1, x2)) -> c4(A__SEL(s(a__sel(mark(z0), mark(z1))), mark(x2)), MARK(x2))
   A__SEL(s(s(cons(z0, z1))), cons(x1, x2)) -> c4(A__SEL(s(cons(mark(z0), z1)), mark(x2)), MARK(x2))
   A__SEL(s(s(s(z0))), cons(x1, x2)) -> c4(A__SEL(s(s(mark(z0))), mark(x2)), MARK(x2))
   A__SEL(s(s(0)), cons(x1, x2)) -> c4(A__SEL(s(0), mark(x2)), MARK(x2))
K tuples:none
Defined Rule Symbols:   a__from_1, a__sel_2, mark_1

Defined Pair Symbols:   A__FROM_1, A__SEL_2, MARK_1

Compound Symbols:   c_1, c2_1, c6_2, c9_1, c10_1, c3_1, c4_2, c4_1, c7_2, c7_1, c8_2, c8_1, c3_2


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

(131) CdtLeafRemovalProof (BOTH BOUNDS(ID, ID))
Removed 1 trailing nodes:
   A__SEL(s(s(x0)), cons(x1, 0)) -> c4(A__SEL(s(mark(x0)), 0), MARK(0))

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

(132)
Obligation:
Complexity Dependency Tuples Problem

Rules:
   a__from(z0) -> cons(mark(z0), from(s(z0)))
   a__from(z0) -> from(z0)
   a__sel(0, cons(z0, z1)) -> mark(z0)
   a__sel(s(z0), cons(z1, z2)) -> a__sel(mark(z0), mark(z2))
   a__sel(z0, z1) -> sel(z0, z1)
   mark(from(z0)) -> a__from(mark(z0))
   mark(sel(z0, z1)) -> a__sel(mark(z0), mark(z1))
   mark(cons(z0, z1)) -> cons(mark(z0), z1)
   mark(s(z0)) -> s(mark(z0))
   mark(0) -> 0
Tuples:
   A__FROM(z0) -> c(MARK(z0))
   A__SEL(0, cons(z0, z1)) -> c2(MARK(z0))
   MARK(from(z0)) -> c6(A__FROM(mark(z0)), MARK(z0))
   MARK(cons(z0, z1)) -> c9(MARK(z0))
   MARK(s(z0)) -> c10(MARK(z0))
   A__SEL(s(x0), cons(x1, s(z0))) -> c3(MARK(x0))
   A__SEL(s(x0), cons(x1, 0)) -> c3(MARK(x0))
   A__SEL(s(cons(z0, z1)), cons(x1, x2)) -> c3(MARK(cons(z0, z1)))
   A__SEL(s(0), cons(x1, x2)) -> c4(A__SEL(0, mark(x2)), MARK(x2))
   A__SEL(s(x0), cons(x1, s(z0))) -> c4(MARK(s(z0)))
   A__SEL(s(cons(z0, z1)), cons(x1, x2)) -> c4(MARK(x2))
   MARK(sel(x0, from(z0))) -> c7(A__SEL(mark(x0), a__from(mark(z0))), MARK(x0))
   MARK(sel(x0, sel(z0, z1))) -> c7(A__SEL(mark(x0), a__sel(mark(z0), mark(z1))), MARK(x0))
   MARK(sel(x0, cons(z0, z1))) -> c7(A__SEL(mark(x0), cons(mark(z0), z1)), MARK(x0))
   MARK(sel(from(z0), x1)) -> c7(A__SEL(a__from(mark(z0)), mark(x1)), MARK(from(z0)))
   MARK(sel(sel(z0, z1), x1)) -> c7(A__SEL(a__sel(mark(z0), mark(z1)), mark(x1)), MARK(sel(z0, z1)))
   MARK(sel(s(z0), x1)) -> c7(A__SEL(s(mark(z0)), mark(x1)), MARK(s(z0)))
   MARK(sel(x0, s(z0))) -> c7(MARK(x0))
   MARK(sel(x0, 0)) -> c7(MARK(x0))
   MARK(sel(cons(z0, z1), x1)) -> c7(MARK(cons(z0, z1)))
   MARK(sel(0, x1)) -> c7(A__SEL(0, mark(x1)))
   MARK(sel(x0, from(z0))) -> c8(A__SEL(mark(x0), a__from(mark(z0))), MARK(from(z0)))
   MARK(sel(x0, sel(z0, z1))) -> c8(A__SEL(mark(x0), a__sel(mark(z0), mark(z1))), MARK(sel(z0, z1)))
   MARK(sel(x0, cons(z0, z1))) -> c8(A__SEL(mark(x0), cons(mark(z0), z1)), MARK(cons(z0, z1)))
   MARK(sel(from(z0), x1)) -> c8(A__SEL(a__from(mark(z0)), mark(x1)), MARK(x1))
   MARK(sel(sel(z0, z1), x1)) -> c8(A__SEL(a__sel(mark(z0), mark(z1)), mark(x1)), MARK(x1))
   MARK(sel(s(z0), x1)) -> c8(A__SEL(s(mark(z0)), mark(x1)), MARK(x1))
   MARK(sel(0, x1)) -> c8(A__SEL(0, mark(x1)), MARK(x1))
   MARK(sel(x0, s(z0))) -> c8(MARK(s(z0)))
   MARK(sel(cons(z0, z1), x1)) -> c8(MARK(x1))
   A__SEL(s(x0), cons(x1, from(x2))) -> c3(A__SEL(mark(x0), cons(mark(mark(x2)), from(s(mark(x2))))), MARK(x0))
   A__SEL(s(x0), cons(x1, from(from(z0)))) -> c3(A__SEL(mark(x0), a__from(a__from(mark(z0)))), MARK(x0))
   A__SEL(s(x0), cons(x1, from(sel(z0, z1)))) -> c3(A__SEL(mark(x0), a__from(a__sel(mark(z0), mark(z1)))), MARK(x0))
   A__SEL(s(x0), cons(x1, from(cons(z0, z1)))) -> c3(A__SEL(mark(x0), a__from(cons(mark(z0), z1))), MARK(x0))
   A__SEL(s(x0), cons(x1, from(s(z0)))) -> c3(A__SEL(mark(x0), a__from(s(mark(z0)))), MARK(x0))
   A__SEL(s(x0), cons(x1, from(0))) -> c3(A__SEL(mark(x0), a__from(0)), MARK(x0))
   A__SEL(s(from(z0)), cons(x1, from(x2))) -> c3(A__SEL(a__from(mark(z0)), a__from(mark(x2))), MARK(from(z0)))
   A__SEL(s(sel(z0, z1)), cons(x1, from(x2))) -> c3(A__SEL(a__sel(mark(z0), mark(z1)), a__from(mark(x2))), MARK(sel(z0, z1)))
   A__SEL(s(s(z0)), cons(x1, from(x2))) -> c3(A__SEL(s(mark(z0)), a__from(mark(x2))), MARK(s(z0)))
   A__SEL(s(x0), cons(x1, from(x2))) -> c3(MARK(x0))
   A__SEL(s(cons(z0, z1)), cons(x1, from(x2))) -> c3(MARK(cons(z0, z1)))
   A__SEL(s(0), cons(x1, from(x2))) -> c3(A__SEL(0, a__from(mark(x2))))
   A__SEL(s(x0), cons(x1, sel(x2, from(z0)))) -> c3(A__SEL(mark(x0), a__sel(mark(x2), a__from(mark(z0)))), MARK(x0))
   A__SEL(s(x0), cons(x1, sel(x2, sel(z0, z1)))) -> c3(A__SEL(mark(x0), a__sel(mark(x2), a__sel(mark(z0), mark(z1)))), MARK(x0))
   A__SEL(s(x0), cons(x1, sel(x2, cons(z0, z1)))) -> c3(A__SEL(mark(x0), a__sel(mark(x2), cons(mark(z0), z1))), MARK(x0))
   A__SEL(s(x0), cons(x1, sel(x2, s(z0)))) -> c3(A__SEL(mark(x0), a__sel(mark(x2), s(mark(z0)))), MARK(x0))
   A__SEL(s(x0), cons(x1, sel(x2, 0))) -> c3(A__SEL(mark(x0), a__sel(mark(x2), 0)), MARK(x0))
   A__SEL(s(x0), cons(x1, sel(from(z0), x3))) -> c3(A__SEL(mark(x0), a__sel(a__from(mark(z0)), mark(x3))), MARK(x0))
   A__SEL(s(x0), cons(x1, sel(sel(z0, z1), x3))) -> c3(A__SEL(mark(x0), a__sel(a__sel(mark(z0), mark(z1)), mark(x3))), MARK(x0))
   A__SEL(s(x0), cons(x1, sel(cons(z0, z1), x3))) -> c3(A__SEL(mark(x0), a__sel(cons(mark(z0), z1), mark(x3))), MARK(x0))
   A__SEL(s(x0), cons(x1, sel(s(z0), x3))) -> c3(A__SEL(mark(x0), a__sel(s(mark(z0)), mark(x3))), MARK(x0))
   A__SEL(s(x0), cons(x1, sel(0, x3))) -> c3(A__SEL(mark(x0), a__sel(0, mark(x3))), MARK(x0))
   A__SEL(s(from(z0)), cons(x1, sel(x2, x3))) -> c3(A__SEL(a__from(mark(z0)), a__sel(mark(x2), mark(x3))), MARK(from(z0)))
   A__SEL(s(sel(z0, z1)), cons(x1, sel(x2, x3))) -> c3(A__SEL(a__sel(mark(z0), mark(z1)), a__sel(mark(x2), mark(x3))), MARK(sel(z0, z1)))
   A__SEL(s(s(z0)), cons(x1, sel(x2, x3))) -> c3(A__SEL(s(mark(z0)), a__sel(mark(x2), mark(x3))), MARK(s(z0)))
   A__SEL(s(x0), cons(x1, sel(x2, x3))) -> c3(MARK(x0))
   A__SEL(s(cons(z0, z1)), cons(x1, sel(x2, x3))) -> c3(MARK(cons(z0, z1)))
   A__SEL(s(0), cons(x1, sel(x2, x3))) -> c3(A__SEL(0, a__sel(mark(x2), mark(x3))))
   A__SEL(s(x0), cons(x1, cons(from(z0), x3))) -> c3(A__SEL(mark(x0), cons(a__from(mark(z0)), x3)), MARK(x0))
   A__SEL(s(x0), cons(x1, cons(sel(z0, z1), x3))) -> c3(A__SEL(mark(x0), cons(a__sel(mark(z0), mark(z1)), x3)), MARK(x0))
   A__SEL(s(x0), cons(x1, cons(cons(z0, z1), x3))) -> c3(A__SEL(mark(x0), cons(cons(mark(z0), z1), x3)), MARK(x0))
   A__SEL(s(x0), cons(x1, cons(s(z0), x3))) -> c3(A__SEL(mark(x0), cons(s(mark(z0)), x3)), MARK(x0))
   A__SEL(s(x0), cons(x1, cons(0, x3))) -> c3(A__SEL(mark(x0), cons(0, x3)), MARK(x0))
   A__SEL(s(from(z0)), cons(x1, cons(x2, x3))) -> c3(A__SEL(a__from(mark(z0)), cons(mark(x2), x3)), MARK(from(z0)))
   A__SEL(s(sel(z0, z1)), cons(x1, cons(x2, x3))) -> c3(A__SEL(a__sel(mark(z0), mark(z1)), cons(mark(x2), x3)), MARK(sel(z0, z1)))
   A__SEL(s(s(z0)), cons(x1, cons(x2, x3))) -> c3(A__SEL(s(mark(z0)), cons(mark(x2), x3)), MARK(s(z0)))
   A__SEL(s(cons(z0, z1)), cons(x1, cons(x2, x3))) -> c3(MARK(cons(z0, z1)))
   A__SEL(s(0), cons(x1, cons(x2, x3))) -> c3(A__SEL(0, cons(mark(x2), x3)))
   A__SEL(s(from(from(z0))), cons(x1, x2)) -> c3(A__SEL(a__from(a__from(mark(z0))), mark(x2)), MARK(from(from(z0))))
   A__SEL(s(from(sel(z0, z1))), cons(x1, x2)) -> c3(A__SEL(a__from(a__sel(mark(z0), mark(z1))), mark(x2)), MARK(from(sel(z0, z1))))
   A__SEL(s(from(cons(z0, z1))), cons(x1, x2)) -> c3(A__SEL(a__from(cons(mark(z0), z1)), mark(x2)), MARK(from(cons(z0, z1))))
   A__SEL(s(from(s(z0))), cons(x1, x2)) -> c3(A__SEL(a__from(s(mark(z0))), mark(x2)), MARK(from(s(z0))))
   A__SEL(s(from(0)), cons(x1, x2)) -> c3(A__SEL(a__from(0), mark(x2)), MARK(from(0)))
   A__SEL(s(from(x0)), cons(x1, x2)) -> c3(MARK(from(x0)))
   A__SEL(s(from(x0)), cons(x1, s(z0))) -> c3(MARK(from(x0)))
   A__SEL(s(from(x0)), cons(x1, 0)) -> c3(MARK(from(x0)))
   A__SEL(s(sel(x0, from(z0))), cons(x2, x3)) -> c3(A__SEL(a__sel(mark(x0), a__from(mark(z0))), mark(x3)), MARK(sel(x0, from(z0))))
   A__SEL(s(sel(x0, sel(z0, z1))), cons(x2, x3)) -> c3(A__SEL(a__sel(mark(x0), a__sel(mark(z0), mark(z1))), mark(x3)), MARK(sel(x0, sel(z0, z1))))
   A__SEL(s(sel(x0, cons(z0, z1))), cons(x2, x3)) -> c3(A__SEL(a__sel(mark(x0), cons(mark(z0), z1)), mark(x3)), MARK(sel(x0, cons(z0, z1))))
   A__SEL(s(sel(x0, s(z0))), cons(x2, x3)) -> c3(A__SEL(a__sel(mark(x0), s(mark(z0))), mark(x3)), MARK(sel(x0, s(z0))))
   A__SEL(s(sel(x0, 0)), cons(x2, x3)) -> c3(A__SEL(a__sel(mark(x0), 0), mark(x3)), MARK(sel(x0, 0)))
   A__SEL(s(sel(from(z0), x1)), cons(x2, x3)) -> c3(A__SEL(a__sel(a__from(mark(z0)), mark(x1)), mark(x3)), MARK(sel(from(z0), x1)))
   A__SEL(s(sel(sel(z0, z1), x1)), cons(x2, x3)) -> c3(A__SEL(a__sel(a__sel(mark(z0), mark(z1)), mark(x1)), mark(x3)), MARK(sel(sel(z0, z1), x1)))
   A__SEL(s(sel(cons(z0, z1), x1)), cons(x2, x3)) -> c3(A__SEL(a__sel(cons(mark(z0), z1), mark(x1)), mark(x3)), MARK(sel(cons(z0, z1), x1)))
   A__SEL(s(sel(s(z0), x1)), cons(x2, x3)) -> c3(A__SEL(a__sel(s(mark(z0)), mark(x1)), mark(x3)), MARK(sel(s(z0), x1)))
   A__SEL(s(sel(0, x1)), cons(x2, x3)) -> c3(A__SEL(a__sel(0, mark(x1)), mark(x3)), MARK(sel(0, x1)))
   A__SEL(s(sel(x0, x1)), cons(x2, s(z0))) -> c3(MARK(sel(x0, x1)))
   A__SEL(s(sel(x0, x1)), cons(x2, 0)) -> c3(MARK(sel(x0, x1)))
   A__SEL(s(sel(x0, x1)), cons(x2, x3)) -> c3(MARK(sel(x0, x1)))
   A__SEL(s(s(from(z0))), cons(x1, x2)) -> c3(A__SEL(s(a__from(mark(z0))), mark(x2)), MARK(s(from(z0))))
   A__SEL(s(s(sel(z0, z1))), cons(x1, x2)) -> c3(A__SEL(s(a__sel(mark(z0), mark(z1))), mark(x2)), MARK(s(sel(z0, z1))))
   A__SEL(s(s(cons(z0, z1))), cons(x1, x2)) -> c3(A__SEL(s(cons(mark(z0), z1)), mark(x2)), MARK(s(cons(z0, z1))))
   A__SEL(s(s(s(z0))), cons(x1, x2)) -> c3(A__SEL(s(s(mark(z0))), mark(x2)), MARK(s(s(z0))))
   A__SEL(s(s(0)), cons(x1, x2)) -> c3(A__SEL(s(0), mark(x2)), MARK(s(0)))
   A__SEL(s(s(x0)), cons(x1, x2)) -> c3(MARK(s(x0)))
   A__SEL(s(s(x0)), cons(x1, s(z0))) -> c3(MARK(s(x0)))
   A__SEL(s(s(x0)), cons(x1, 0)) -> c3(MARK(s(x0)))
   A__SEL(s(x0), cons(x1, from(x2))) -> c4(A__SEL(mark(x0), cons(mark(mark(x2)), from(s(mark(x2))))), MARK(from(x2)))
   A__SEL(s(x0), cons(x1, from(from(z0)))) -> c4(A__SEL(mark(x0), a__from(a__from(mark(z0)))), MARK(from(from(z0))))
   A__SEL(s(x0), cons(x1, from(sel(z0, z1)))) -> c4(A__SEL(mark(x0), a__from(a__sel(mark(z0), mark(z1)))), MARK(from(sel(z0, z1))))
   A__SEL(s(x0), cons(x1, from(cons(z0, z1)))) -> c4(A__SEL(mark(x0), a__from(cons(mark(z0), z1))), MARK(from(cons(z0, z1))))
   A__SEL(s(x0), cons(x1, from(s(z0)))) -> c4(A__SEL(mark(x0), a__from(s(mark(z0)))), MARK(from(s(z0))))
   A__SEL(s(x0), cons(x1, from(0))) -> c4(A__SEL(mark(x0), a__from(0)), MARK(from(0)))
   A__SEL(s(from(z0)), cons(x1, from(x2))) -> c4(A__SEL(a__from(mark(z0)), a__from(mark(x2))), MARK(from(x2)))
   A__SEL(s(sel(z0, z1)), cons(x1, from(x2))) -> c4(A__SEL(a__sel(mark(z0), mark(z1)), a__from(mark(x2))), MARK(from(x2)))
   A__SEL(s(s(z0)), cons(x1, from(x2))) -> c4(A__SEL(s(mark(z0)), a__from(mark(x2))), MARK(from(x2)))
   A__SEL(s(0), cons(x1, from(x2))) -> c4(A__SEL(0, a__from(mark(x2))), MARK(from(x2)))
   A__SEL(s(x0), cons(x1, from(x2))) -> c4(MARK(from(x2)))
   A__SEL(s(cons(z0, z1)), cons(x1, from(x2))) -> c4(MARK(from(x2)))
   A__SEL(s(x0), cons(x1, sel(x2, from(z0)))) -> c4(A__SEL(mark(x0), a__sel(mark(x2), a__from(mark(z0)))), MARK(sel(x2, from(z0))))
   A__SEL(s(x0), cons(x1, sel(x2, sel(z0, z1)))) -> c4(A__SEL(mark(x0), a__sel(mark(x2), a__sel(mark(z0), mark(z1)))), MARK(sel(x2, sel(z0, z1))))
   A__SEL(s(x0), cons(x1, sel(x2, cons(z0, z1)))) -> c4(A__SEL(mark(x0), a__sel(mark(x2), cons(mark(z0), z1))), MARK(sel(x2, cons(z0, z1))))
   A__SEL(s(x0), cons(x1, sel(x2, s(z0)))) -> c4(A__SEL(mark(x0), a__sel(mark(x2), s(mark(z0)))), MARK(sel(x2, s(z0))))
   A__SEL(s(x0), cons(x1, sel(x2, 0))) -> c4(A__SEL(mark(x0), a__sel(mark(x2), 0)), MARK(sel(x2, 0)))
   A__SEL(s(x0), cons(x1, sel(from(z0), x3))) -> c4(A__SEL(mark(x0), a__sel(a__from(mark(z0)), mark(x3))), MARK(sel(from(z0), x3)))
   A__SEL(s(x0), cons(x1, sel(sel(z0, z1), x3))) -> c4(A__SEL(mark(x0), a__sel(a__sel(mark(z0), mark(z1)), mark(x3))), MARK(sel(sel(z0, z1), x3)))
   A__SEL(s(x0), cons(x1, sel(cons(z0, z1), x3))) -> c4(A__SEL(mark(x0), a__sel(cons(mark(z0), z1), mark(x3))), MARK(sel(cons(z0, z1), x3)))
   A__SEL(s(x0), cons(x1, sel(s(z0), x3))) -> c4(A__SEL(mark(x0), a__sel(s(mark(z0)), mark(x3))), MARK(sel(s(z0), x3)))
   A__SEL(s(x0), cons(x1, sel(0, x3))) -> c4(A__SEL(mark(x0), a__sel(0, mark(x3))), MARK(sel(0, x3)))
   A__SEL(s(from(z0)), cons(x1, sel(x2, x3))) -> c4(A__SEL(a__from(mark(z0)), a__sel(mark(x2), mark(x3))), MARK(sel(x2, x3)))
   A__SEL(s(sel(z0, z1)), cons(x1, sel(x2, x3))) -> c4(A__SEL(a__sel(mark(z0), mark(z1)), a__sel(mark(x2), mark(x3))), MARK(sel(x2, x3)))
   A__SEL(s(s(z0)), cons(x1, sel(x2, x3))) -> c4(A__SEL(s(mark(z0)), a__sel(mark(x2), mark(x3))), MARK(sel(x2, x3)))
   A__SEL(s(0), cons(x1, sel(x2, x3))) -> c4(A__SEL(0, a__sel(mark(x2), mark(x3))), MARK(sel(x2, x3)))
   A__SEL(s(x0), cons(x1, sel(x2, x3))) -> c4(MARK(sel(x2, x3)))
   A__SEL(s(cons(z0, z1)), cons(x1, sel(x2, x3))) -> c4(MARK(sel(x2, x3)))
   A__SEL(s(x0), cons(x1, cons(from(z0), x3))) -> c4(A__SEL(mark(x0), cons(a__from(mark(z0)), x3)), MARK(cons(from(z0), x3)))
   A__SEL(s(x0), cons(x1, cons(sel(z0, z1), x3))) -> c4(A__SEL(mark(x0), cons(a__sel(mark(z0), mark(z1)), x3)), MARK(cons(sel(z0, z1), x3)))
   A__SEL(s(x0), cons(x1, cons(cons(z0, z1), x3))) -> c4(A__SEL(mark(x0), cons(cons(mark(z0), z1), x3)), MARK(cons(cons(z0, z1), x3)))
   A__SEL(s(x0), cons(x1, cons(s(z0), x3))) -> c4(A__SEL(mark(x0), cons(s(mark(z0)), x3)), MARK(cons(s(z0), x3)))
   A__SEL(s(x0), cons(x1, cons(0, x3))) -> c4(A__SEL(mark(x0), cons(0, x3)), MARK(cons(0, x3)))
   A__SEL(s(from(z0)), cons(x1, cons(x2, x3))) -> c4(A__SEL(a__from(mark(z0)), cons(mark(x2), x3)), MARK(cons(x2, x3)))
   A__SEL(s(sel(z0, z1)), cons(x1, cons(x2, x3))) -> c4(A__SEL(a__sel(mark(z0), mark(z1)), cons(mark(x2), x3)), MARK(cons(x2, x3)))
   A__SEL(s(s(z0)), cons(x1, cons(x2, x3))) -> c4(A__SEL(s(mark(z0)), cons(mark(x2), x3)), MARK(cons(x2, x3)))
   A__SEL(s(0), cons(x1, cons(x2, x3))) -> c4(A__SEL(0, cons(mark(x2), x3)), MARK(cons(x2, x3)))
   A__SEL(s(x0), cons(x1, cons(x2, x3))) -> c4(MARK(cons(x2, x3)))
   A__SEL(s(cons(z0, z1)), cons(x1, cons(x2, x3))) -> c4(MARK(cons(x2, x3)))
   A__SEL(s(from(from(z0))), cons(x1, x2)) -> c4(A__SEL(a__from(a__from(mark(z0))), mark(x2)), MARK(x2))
   A__SEL(s(from(sel(z0, z1))), cons(x1, x2)) -> c4(A__SEL(a__from(a__sel(mark(z0), mark(z1))), mark(x2)), MARK(x2))
   A__SEL(s(from(cons(z0, z1))), cons(x1, x2)) -> c4(A__SEL(a__from(cons(mark(z0), z1)), mark(x2)), MARK(x2))
   A__SEL(s(from(s(z0))), cons(x1, x2)) -> c4(A__SEL(a__from(s(mark(z0))), mark(x2)), MARK(x2))
   A__SEL(s(from(0)), cons(x1, x2)) -> c4(A__SEL(a__from(0), mark(x2)), MARK(x2))
   A__SEL(s(from(x0)), cons(x1, s(z0))) -> c4(MARK(s(z0)))
   A__SEL(s(from(x0)), cons(x1, x2)) -> c4(MARK(x2))
   A__SEL(s(sel(x0, from(z0))), cons(x2, x3)) -> c4(A__SEL(a__sel(mark(x0), a__from(mark(z0))), mark(x3)), MARK(x3))
   A__SEL(s(sel(x0, sel(z0, z1))), cons(x2, x3)) -> c4(A__SEL(a__sel(mark(x0), a__sel(mark(z0), mark(z1))), mark(x3)), MARK(x3))
   A__SEL(s(sel(x0, cons(z0, z1))), cons(x2, x3)) -> c4(A__SEL(a__sel(mark(x0), cons(mark(z0), z1)), mark(x3)), MARK(x3))
   A__SEL(s(sel(x0, s(z0))), cons(x2, x3)) -> c4(A__SEL(a__sel(mark(x0), s(mark(z0))), mark(x3)), MARK(x3))
   A__SEL(s(sel(x0, 0)), cons(x2, x3)) -> c4(A__SEL(a__sel(mark(x0), 0), mark(x3)), MARK(x3))
   A__SEL(s(sel(from(z0), x1)), cons(x2, x3)) -> c4(A__SEL(a__sel(a__from(mark(z0)), mark(x1)), mark(x3)), MARK(x3))
   A__SEL(s(sel(sel(z0, z1), x1)), cons(x2, x3)) -> c4(A__SEL(a__sel(a__sel(mark(z0), mark(z1)), mark(x1)), mark(x3)), MARK(x3))
   A__SEL(s(sel(cons(z0, z1), x1)), cons(x2, x3)) -> c4(A__SEL(a__sel(cons(mark(z0), z1), mark(x1)), mark(x3)), MARK(x3))
   A__SEL(s(sel(s(z0), x1)), cons(x2, x3)) -> c4(A__SEL(a__sel(s(mark(z0)), mark(x1)), mark(x3)), MARK(x3))
   A__SEL(s(sel(0, x1)), cons(x2, x3)) -> c4(A__SEL(a__sel(0, mark(x1)), mark(x3)), MARK(x3))
   A__SEL(s(sel(x0, x1)), cons(x2, s(z0))) -> c4(MARK(s(z0)))
   A__SEL(s(sel(x0, x1)), cons(x2, x3)) -> c4(MARK(x3))
   A__SEL(s(s(x0)), cons(x1, s(z0))) -> c4(A__SEL(s(mark(x0)), s(mark(z0))), MARK(s(z0)))
   A__SEL(s(s(from(z0))), cons(x1, x2)) -> c4(A__SEL(s(a__from(mark(z0))), mark(x2)), MARK(x2))
   A__SEL(s(s(sel(z0, z1))), cons(x1, x2)) -> c4(A__SEL(s(a__sel(mark(z0), mark(z1))), mark(x2)), MARK(x2))
   A__SEL(s(s(cons(z0, z1))), cons(x1, x2)) -> c4(A__SEL(s(cons(mark(z0), z1)), mark(x2)), MARK(x2))
   A__SEL(s(s(s(z0))), cons(x1, x2)) -> c4(A__SEL(s(s(mark(z0))), mark(x2)), MARK(x2))
   A__SEL(s(s(0)), cons(x1, x2)) -> c4(A__SEL(s(0), mark(x2)), MARK(x2))
S tuples:
   A__FROM(z0) -> c(MARK(z0))
   A__SEL(0, cons(z0, z1)) -> c2(MARK(z0))
   MARK(from(z0)) -> c6(A__FROM(mark(z0)), MARK(z0))
   MARK(cons(z0, z1)) -> c9(MARK(z0))
   MARK(s(z0)) -> c10(MARK(z0))
   A__SEL(s(x0), cons(x1, s(z0))) -> c3(MARK(x0))
   A__SEL(s(x0), cons(x1, 0)) -> c3(MARK(x0))
   A__SEL(s(cons(z0, z1)), cons(x1, x2)) -> c3(MARK(cons(z0, z1)))
   A__SEL(s(0), cons(x1, x2)) -> c4(A__SEL(0, mark(x2)), MARK(x2))
   A__SEL(s(x0), cons(x1, s(z0))) -> c4(MARK(s(z0)))
   A__SEL(s(cons(z0, z1)), cons(x1, x2)) -> c4(MARK(x2))
   MARK(sel(x0, from(z0))) -> c7(A__SEL(mark(x0), a__from(mark(z0))), MARK(x0))
   MARK(sel(x0, sel(z0, z1))) -> c7(A__SEL(mark(x0), a__sel(mark(z0), mark(z1))), MARK(x0))
   MARK(sel(x0, cons(z0, z1))) -> c7(A__SEL(mark(x0), cons(mark(z0), z1)), MARK(x0))
   MARK(sel(from(z0), x1)) -> c7(A__SEL(a__from(mark(z0)), mark(x1)), MARK(from(z0)))
   MARK(sel(sel(z0, z1), x1)) -> c7(A__SEL(a__sel(mark(z0), mark(z1)), mark(x1)), MARK(sel(z0, z1)))
   MARK(sel(s(z0), x1)) -> c7(A__SEL(s(mark(z0)), mark(x1)), MARK(s(z0)))
   MARK(sel(x0, s(z0))) -> c7(MARK(x0))
   MARK(sel(x0, 0)) -> c7(MARK(x0))
   MARK(sel(cons(z0, z1), x1)) -> c7(MARK(cons(z0, z1)))
   MARK(sel(0, x1)) -> c7(A__SEL(0, mark(x1)))
   MARK(sel(x0, from(z0))) -> c8(A__SEL(mark(x0), a__from(mark(z0))), MARK(from(z0)))
   MARK(sel(x0, sel(z0, z1))) -> c8(A__SEL(mark(x0), a__sel(mark(z0), mark(z1))), MARK(sel(z0, z1)))
   MARK(sel(x0, cons(z0, z1))) -> c8(A__SEL(mark(x0), cons(mark(z0), z1)), MARK(cons(z0, z1)))
   MARK(sel(from(z0), x1)) -> c8(A__SEL(a__from(mark(z0)), mark(x1)), MARK(x1))
   MARK(sel(sel(z0, z1), x1)) -> c8(A__SEL(a__sel(mark(z0), mark(z1)), mark(x1)), MARK(x1))
   MARK(sel(s(z0), x1)) -> c8(A__SEL(s(mark(z0)), mark(x1)), MARK(x1))
   MARK(sel(0, x1)) -> c8(A__SEL(0, mark(x1)), MARK(x1))
   MARK(sel(x0, s(z0))) -> c8(MARK(s(z0)))
   MARK(sel(cons(z0, z1), x1)) -> c8(MARK(x1))
   A__SEL(s(x0), cons(x1, from(x2))) -> c3(A__SEL(mark(x0), cons(mark(mark(x2)), from(s(mark(x2))))), MARK(x0))
   A__SEL(s(x0), cons(x1, from(from(z0)))) -> c3(A__SEL(mark(x0), a__from(a__from(mark(z0)))), MARK(x0))
   A__SEL(s(x0), cons(x1, from(sel(z0, z1)))) -> c3(A__SEL(mark(x0), a__from(a__sel(mark(z0), mark(z1)))), MARK(x0))
   A__SEL(s(x0), cons(x1, from(cons(z0, z1)))) -> c3(A__SEL(mark(x0), a__from(cons(mark(z0), z1))), MARK(x0))
   A__SEL(s(x0), cons(x1, from(s(z0)))) -> c3(A__SEL(mark(x0), a__from(s(mark(z0)))), MARK(x0))
   A__SEL(s(x0), cons(x1, from(0))) -> c3(A__SEL(mark(x0), a__from(0)), MARK(x0))
   A__SEL(s(from(z0)), cons(x1, from(x2))) -> c3(A__SEL(a__from(mark(z0)), a__from(mark(x2))), MARK(from(z0)))
   A__SEL(s(sel(z0, z1)), cons(x1, from(x2))) -> c3(A__SEL(a__sel(mark(z0), mark(z1)), a__from(mark(x2))), MARK(sel(z0, z1)))
   A__SEL(s(s(z0)), cons(x1, from(x2))) -> c3(A__SEL(s(mark(z0)), a__from(mark(x2))), MARK(s(z0)))
   A__SEL(s(x0), cons(x1, from(x2))) -> c3(MARK(x0))
   A__SEL(s(cons(z0, z1)), cons(x1, from(x2))) -> c3(MARK(cons(z0, z1)))
   A__SEL(s(0), cons(x1, from(x2))) -> c3(A__SEL(0, a__from(mark(x2))))
   A__SEL(s(x0), cons(x1, sel(x2, from(z0)))) -> c3(A__SEL(mark(x0), a__sel(mark(x2), a__from(mark(z0)))), MARK(x0))
   A__SEL(s(x0), cons(x1, sel(x2, sel(z0, z1)))) -> c3(A__SEL(mark(x0), a__sel(mark(x2), a__sel(mark(z0), mark(z1)))), MARK(x0))
   A__SEL(s(x0), cons(x1, sel(x2, cons(z0, z1)))) -> c3(A__SEL(mark(x0), a__sel(mark(x2), cons(mark(z0), z1))), MARK(x0))
   A__SEL(s(x0), cons(x1, sel(x2, s(z0)))) -> c3(A__SEL(mark(x0), a__sel(mark(x2), s(mark(z0)))), MARK(x0))
   A__SEL(s(x0), cons(x1, sel(x2, 0))) -> c3(A__SEL(mark(x0), a__sel(mark(x2), 0)), MARK(x0))
   A__SEL(s(x0), cons(x1, sel(from(z0), x3))) -> c3(A__SEL(mark(x0), a__sel(a__from(mark(z0)), mark(x3))), MARK(x0))
   A__SEL(s(x0), cons(x1, sel(sel(z0, z1), x3))) -> c3(A__SEL(mark(x0), a__sel(a__sel(mark(z0), mark(z1)), mark(x3))), MARK(x0))
   A__SEL(s(x0), cons(x1, sel(cons(z0, z1), x3))) -> c3(A__SEL(mark(x0), a__sel(cons(mark(z0), z1), mark(x3))), MARK(x0))
   A__SEL(s(x0), cons(x1, sel(s(z0), x3))) -> c3(A__SEL(mark(x0), a__sel(s(mark(z0)), mark(x3))), MARK(x0))
   A__SEL(s(x0), cons(x1, sel(0, x3))) -> c3(A__SEL(mark(x0), a__sel(0, mark(x3))), MARK(x0))
   A__SEL(s(from(z0)), cons(x1, sel(x2, x3))) -> c3(A__SEL(a__from(mark(z0)), a__sel(mark(x2), mark(x3))), MARK(from(z0)))
   A__SEL(s(sel(z0, z1)), cons(x1, sel(x2, x3))) -> c3(A__SEL(a__sel(mark(z0), mark(z1)), a__sel(mark(x2), mark(x3))), MARK(sel(z0, z1)))
   A__SEL(s(s(z0)), cons(x1, sel(x2, x3))) -> c3(A__SEL(s(mark(z0)), a__sel(mark(x2), mark(x3))), MARK(s(z0)))
   A__SEL(s(x0), cons(x1, sel(x2, x3))) -> c3(MARK(x0))
   A__SEL(s(cons(z0, z1)), cons(x1, sel(x2, x3))) -> c3(MARK(cons(z0, z1)))
   A__SEL(s(0), cons(x1, sel(x2, x3))) -> c3(A__SEL(0, a__sel(mark(x2), mark(x3))))
   A__SEL(s(x0), cons(x1, cons(from(z0), x3))) -> c3(A__SEL(mark(x0), cons(a__from(mark(z0)), x3)), MARK(x0))
   A__SEL(s(x0), cons(x1, cons(sel(z0, z1), x3))) -> c3(A__SEL(mark(x0), cons(a__sel(mark(z0), mark(z1)), x3)), MARK(x0))
   A__SEL(s(x0), cons(x1, cons(cons(z0, z1), x3))) -> c3(A__SEL(mark(x0), cons(cons(mark(z0), z1), x3)), MARK(x0))
   A__SEL(s(x0), cons(x1, cons(s(z0), x3))) -> c3(A__SEL(mark(x0), cons(s(mark(z0)), x3)), MARK(x0))
   A__SEL(s(x0), cons(x1, cons(0, x3))) -> c3(A__SEL(mark(x0), cons(0, x3)), MARK(x0))
   A__SEL(s(from(z0)), cons(x1, cons(x2, x3))) -> c3(A__SEL(a__from(mark(z0)), cons(mark(x2), x3)), MARK(from(z0)))
   A__SEL(s(sel(z0, z1)), cons(x1, cons(x2, x3))) -> c3(A__SEL(a__sel(mark(z0), mark(z1)), cons(mark(x2), x3)), MARK(sel(z0, z1)))
   A__SEL(s(s(z0)), cons(x1, cons(x2, x3))) -> c3(A__SEL(s(mark(z0)), cons(mark(x2), x3)), MARK(s(z0)))
   A__SEL(s(cons(z0, z1)), cons(x1, cons(x2, x3))) -> c3(MARK(cons(z0, z1)))
   A__SEL(s(0), cons(x1, cons(x2, x3))) -> c3(A__SEL(0, cons(mark(x2), x3)))
   A__SEL(s(from(from(z0))), cons(x1, x2)) -> c3(A__SEL(a__from(a__from(mark(z0))), mark(x2)), MARK(from(from(z0))))
   A__SEL(s(from(sel(z0, z1))), cons(x1, x2)) -> c3(A__SEL(a__from(a__sel(mark(z0), mark(z1))), mark(x2)), MARK(from(sel(z0, z1))))
   A__SEL(s(from(cons(z0, z1))), cons(x1, x2)) -> c3(A__SEL(a__from(cons(mark(z0), z1)), mark(x2)), MARK(from(cons(z0, z1))))
   A__SEL(s(from(s(z0))), cons(x1, x2)) -> c3(A__SEL(a__from(s(mark(z0))), mark(x2)), MARK(from(s(z0))))
   A__SEL(s(from(0)), cons(x1, x2)) -> c3(A__SEL(a__from(0), mark(x2)), MARK(from(0)))
   A__SEL(s(from(x0)), cons(x1, x2)) -> c3(MARK(from(x0)))
   A__SEL(s(from(x0)), cons(x1, s(z0))) -> c3(MARK(from(x0)))
   A__SEL(s(from(x0)), cons(x1, 0)) -> c3(MARK(from(x0)))
   A__SEL(s(sel(x0, from(z0))), cons(x2, x3)) -> c3(A__SEL(a__sel(mark(x0), a__from(mark(z0))), mark(x3)), MARK(sel(x0, from(z0))))
   A__SEL(s(sel(x0, sel(z0, z1))), cons(x2, x3)) -> c3(A__SEL(a__sel(mark(x0), a__sel(mark(z0), mark(z1))), mark(x3)), MARK(sel(x0, sel(z0, z1))))
   A__SEL(s(sel(x0, cons(z0, z1))), cons(x2, x3)) -> c3(A__SEL(a__sel(mark(x0), cons(mark(z0), z1)), mark(x3)), MARK(sel(x0, cons(z0, z1))))
   A__SEL(s(sel(x0, s(z0))), cons(x2, x3)) -> c3(A__SEL(a__sel(mark(x0), s(mark(z0))), mark(x3)), MARK(sel(x0, s(z0))))
   A__SEL(s(sel(x0, 0)), cons(x2, x3)) -> c3(A__SEL(a__sel(mark(x0), 0), mark(x3)), MARK(sel(x0, 0)))
   A__SEL(s(sel(from(z0), x1)), cons(x2, x3)) -> c3(A__SEL(a__sel(a__from(mark(z0)), mark(x1)), mark(x3)), MARK(sel(from(z0), x1)))
   A__SEL(s(sel(sel(z0, z1), x1)), cons(x2, x3)) -> c3(A__SEL(a__sel(a__sel(mark(z0), mark(z1)), mark(x1)), mark(x3)), MARK(sel(sel(z0, z1), x1)))
   A__SEL(s(sel(cons(z0, z1), x1)), cons(x2, x3)) -> c3(A__SEL(a__sel(cons(mark(z0), z1), mark(x1)), mark(x3)), MARK(sel(cons(z0, z1), x1)))
   A__SEL(s(sel(s(z0), x1)), cons(x2, x3)) -> c3(A__SEL(a__sel(s(mark(z0)), mark(x1)), mark(x3)), MARK(sel(s(z0), x1)))
   A__SEL(s(sel(0, x1)), cons(x2, x3)) -> c3(A__SEL(a__sel(0, mark(x1)), mark(x3)), MARK(sel(0, x1)))
   A__SEL(s(sel(x0, x1)), cons(x2, s(z0))) -> c3(MARK(sel(x0, x1)))
   A__SEL(s(sel(x0, x1)), cons(x2, 0)) -> c3(MARK(sel(x0, x1)))
   A__SEL(s(sel(x0, x1)), cons(x2, x3)) -> c3(MARK(sel(x0, x1)))
   A__SEL(s(s(from(z0))), cons(x1, x2)) -> c3(A__SEL(s(a__from(mark(z0))), mark(x2)), MARK(s(from(z0))))
   A__SEL(s(s(sel(z0, z1))), cons(x1, x2)) -> c3(A__SEL(s(a__sel(mark(z0), mark(z1))), mark(x2)), MARK(s(sel(z0, z1))))
   A__SEL(s(s(cons(z0, z1))), cons(x1, x2)) -> c3(A__SEL(s(cons(mark(z0), z1)), mark(x2)), MARK(s(cons(z0, z1))))
   A__SEL(s(s(s(z0))), cons(x1, x2)) -> c3(A__SEL(s(s(mark(z0))), mark(x2)), MARK(s(s(z0))))
   A__SEL(s(s(0)), cons(x1, x2)) -> c3(A__SEL(s(0), mark(x2)), MARK(s(0)))
   A__SEL(s(s(x0)), cons(x1, x2)) -> c3(MARK(s(x0)))
   A__SEL(s(s(x0)), cons(x1, s(z0))) -> c3(MARK(s(x0)))
   A__SEL(s(s(x0)), cons(x1, 0)) -> c3(MARK(s(x0)))
   A__SEL(s(x0), cons(x1, from(x2))) -> c4(A__SEL(mark(x0), cons(mark(mark(x2)), from(s(mark(x2))))), MARK(from(x2)))
   A__SEL(s(x0), cons(x1, from(from(z0)))) -> c4(A__SEL(mark(x0), a__from(a__from(mark(z0)))), MARK(from(from(z0))))
   A__SEL(s(x0), cons(x1, from(sel(z0, z1)))) -> c4(A__SEL(mark(x0), a__from(a__sel(mark(z0), mark(z1)))), MARK(from(sel(z0, z1))))
   A__SEL(s(x0), cons(x1, from(cons(z0, z1)))) -> c4(A__SEL(mark(x0), a__from(cons(mark(z0), z1))), MARK(from(cons(z0, z1))))
   A__SEL(s(x0), cons(x1, from(s(z0)))) -> c4(A__SEL(mark(x0), a__from(s(mark(z0)))), MARK(from(s(z0))))
   A__SEL(s(x0), cons(x1, from(0))) -> c4(A__SEL(mark(x0), a__from(0)), MARK(from(0)))
   A__SEL(s(from(z0)), cons(x1, from(x2))) -> c4(A__SEL(a__from(mark(z0)), a__from(mark(x2))), MARK(from(x2)))
   A__SEL(s(sel(z0, z1)), cons(x1, from(x2))) -> c4(A__SEL(a__sel(mark(z0), mark(z1)), a__from(mark(x2))), MARK(from(x2)))
   A__SEL(s(s(z0)), cons(x1, from(x2))) -> c4(A__SEL(s(mark(z0)), a__from(mark(x2))), MARK(from(x2)))
   A__SEL(s(0), cons(x1, from(x2))) -> c4(A__SEL(0, a__from(mark(x2))), MARK(from(x2)))
   A__SEL(s(x0), cons(x1, from(x2))) -> c4(MARK(from(x2)))
   A__SEL(s(cons(z0, z1)), cons(x1, from(x2))) -> c4(MARK(from(x2)))
   A__SEL(s(x0), cons(x1, sel(x2, from(z0)))) -> c4(A__SEL(mark(x0), a__sel(mark(x2), a__from(mark(z0)))), MARK(sel(x2, from(z0))))
   A__SEL(s(x0), cons(x1, sel(x2, sel(z0, z1)))) -> c4(A__SEL(mark(x0), a__sel(mark(x2), a__sel(mark(z0), mark(z1)))), MARK(sel(x2, sel(z0, z1))))
   A__SEL(s(x0), cons(x1, sel(x2, cons(z0, z1)))) -> c4(A__SEL(mark(x0), a__sel(mark(x2), cons(mark(z0), z1))), MARK(sel(x2, cons(z0, z1))))
   A__SEL(s(x0), cons(x1, sel(x2, s(z0)))) -> c4(A__SEL(mark(x0), a__sel(mark(x2), s(mark(z0)))), MARK(sel(x2, s(z0))))
   A__SEL(s(x0), cons(x1, sel(x2, 0))) -> c4(A__SEL(mark(x0), a__sel(mark(x2), 0)), MARK(sel(x2, 0)))
   A__SEL(s(x0), cons(x1, sel(from(z0), x3))) -> c4(A__SEL(mark(x0), a__sel(a__from(mark(z0)), mark(x3))), MARK(sel(from(z0), x3)))
   A__SEL(s(x0), cons(x1, sel(sel(z0, z1), x3))) -> c4(A__SEL(mark(x0), a__sel(a__sel(mark(z0), mark(z1)), mark(x3))), MARK(sel(sel(z0, z1), x3)))
   A__SEL(s(x0), cons(x1, sel(cons(z0, z1), x3))) -> c4(A__SEL(mark(x0), a__sel(cons(mark(z0), z1), mark(x3))), MARK(sel(cons(z0, z1), x3)))
   A__SEL(s(x0), cons(x1, sel(s(z0), x3))) -> c4(A__SEL(mark(x0), a__sel(s(mark(z0)), mark(x3))), MARK(sel(s(z0), x3)))
   A__SEL(s(x0), cons(x1, sel(0, x3))) -> c4(A__SEL(mark(x0), a__sel(0, mark(x3))), MARK(sel(0, x3)))
   A__SEL(s(from(z0)), cons(x1, sel(x2, x3))) -> c4(A__SEL(a__from(mark(z0)), a__sel(mark(x2), mark(x3))), MARK(sel(x2, x3)))
   A__SEL(s(sel(z0, z1)), cons(x1, sel(x2, x3))) -> c4(A__SEL(a__sel(mark(z0), mark(z1)), a__sel(mark(x2), mark(x3))), MARK(sel(x2, x3)))
   A__SEL(s(s(z0)), cons(x1, sel(x2, x3))) -> c4(A__SEL(s(mark(z0)), a__sel(mark(x2), mark(x3))), MARK(sel(x2, x3)))
   A__SEL(s(0), cons(x1, sel(x2, x3))) -> c4(A__SEL(0, a__sel(mark(x2), mark(x3))), MARK(sel(x2, x3)))
   A__SEL(s(x0), cons(x1, sel(x2, x3))) -> c4(MARK(sel(x2, x3)))
   A__SEL(s(cons(z0, z1)), cons(x1, sel(x2, x3))) -> c4(MARK(sel(x2, x3)))
   A__SEL(s(x0), cons(x1, cons(from(z0), x3))) -> c4(A__SEL(mark(x0), cons(a__from(mark(z0)), x3)), MARK(cons(from(z0), x3)))
   A__SEL(s(x0), cons(x1, cons(sel(z0, z1), x3))) -> c4(A__SEL(mark(x0), cons(a__sel(mark(z0), mark(z1)), x3)), MARK(cons(sel(z0, z1), x3)))
   A__SEL(s(x0), cons(x1, cons(cons(z0, z1), x3))) -> c4(A__SEL(mark(x0), cons(cons(mark(z0), z1), x3)), MARK(cons(cons(z0, z1), x3)))
   A__SEL(s(x0), cons(x1, cons(s(z0), x3))) -> c4(A__SEL(mark(x0), cons(s(mark(z0)), x3)), MARK(cons(s(z0), x3)))
   A__SEL(s(x0), cons(x1, cons(0, x3))) -> c4(A__SEL(mark(x0), cons(0, x3)), MARK(cons(0, x3)))
   A__SEL(s(from(z0)), cons(x1, cons(x2, x3))) -> c4(A__SEL(a__from(mark(z0)), cons(mark(x2), x3)), MARK(cons(x2, x3)))
   A__SEL(s(sel(z0, z1)), cons(x1, cons(x2, x3))) -> c4(A__SEL(a__sel(mark(z0), mark(z1)), cons(mark(x2), x3)), MARK(cons(x2, x3)))
   A__SEL(s(s(z0)), cons(x1, cons(x2, x3))) -> c4(A__SEL(s(mark(z0)), cons(mark(x2), x3)), MARK(cons(x2, x3)))
   A__SEL(s(0), cons(x1, cons(x2, x3))) -> c4(A__SEL(0, cons(mark(x2), x3)), MARK(cons(x2, x3)))
   A__SEL(s(x0), cons(x1, cons(x2, x3))) -> c4(MARK(cons(x2, x3)))
   A__SEL(s(cons(z0, z1)), cons(x1, cons(x2, x3))) -> c4(MARK(cons(x2, x3)))
   A__SEL(s(from(from(z0))), cons(x1, x2)) -> c4(A__SEL(a__from(a__from(mark(z0))), mark(x2)), MARK(x2))
   A__SEL(s(from(sel(z0, z1))), cons(x1, x2)) -> c4(A__SEL(a__from(a__sel(mark(z0), mark(z1))), mark(x2)), MARK(x2))
   A__SEL(s(from(cons(z0, z1))), cons(x1, x2)) -> c4(A__SEL(a__from(cons(mark(z0), z1)), mark(x2)), MARK(x2))
   A__SEL(s(from(s(z0))), cons(x1, x2)) -> c4(A__SEL(a__from(s(mark(z0))), mark(x2)), MARK(x2))
   A__SEL(s(from(0)), cons(x1, x2)) -> c4(A__SEL(a__from(0), mark(x2)), MARK(x2))
   A__SEL(s(from(x0)), cons(x1, s(z0))) -> c4(MARK(s(z0)))
   A__SEL(s(from(x0)), cons(x1, x2)) -> c4(MARK(x2))
   A__SEL(s(sel(x0, from(z0))), cons(x2, x3)) -> c4(A__SEL(a__sel(mark(x0), a__from(mark(z0))), mark(x3)), MARK(x3))
   A__SEL(s(sel(x0, sel(z0, z1))), cons(x2, x3)) -> c4(A__SEL(a__sel(mark(x0), a__sel(mark(z0), mark(z1))), mark(x3)), MARK(x3))
   A__SEL(s(sel(x0, cons(z0, z1))), cons(x2, x3)) -> c4(A__SEL(a__sel(mark(x0), cons(mark(z0), z1)), mark(x3)), MARK(x3))
   A__SEL(s(sel(x0, s(z0))), cons(x2, x3)) -> c4(A__SEL(a__sel(mark(x0), s(mark(z0))), mark(x3)), MARK(x3))
   A__SEL(s(sel(x0, 0)), cons(x2, x3)) -> c4(A__SEL(a__sel(mark(x0), 0), mark(x3)), MARK(x3))
   A__SEL(s(sel(from(z0), x1)), cons(x2, x3)) -> c4(A__SEL(a__sel(a__from(mark(z0)), mark(x1)), mark(x3)), MARK(x3))
   A__SEL(s(sel(sel(z0, z1), x1)), cons(x2, x3)) -> c4(A__SEL(a__sel(a__sel(mark(z0), mark(z1)), mark(x1)), mark(x3)), MARK(x3))
   A__SEL(s(sel(cons(z0, z1), x1)), cons(x2, x3)) -> c4(A__SEL(a__sel(cons(mark(z0), z1), mark(x1)), mark(x3)), MARK(x3))
   A__SEL(s(sel(s(z0), x1)), cons(x2, x3)) -> c4(A__SEL(a__sel(s(mark(z0)), mark(x1)), mark(x3)), MARK(x3))
   A__SEL(s(sel(0, x1)), cons(x2, x3)) -> c4(A__SEL(a__sel(0, mark(x1)), mark(x3)), MARK(x3))
   A__SEL(s(sel(x0, x1)), cons(x2, s(z0))) -> c4(MARK(s(z0)))
   A__SEL(s(sel(x0, x1)), cons(x2, x3)) -> c4(MARK(x3))
   A__SEL(s(s(x0)), cons(x1, s(z0))) -> c4(A__SEL(s(mark(x0)), s(mark(z0))), MARK(s(z0)))
   A__SEL(s(s(from(z0))), cons(x1, x2)) -> c4(A__SEL(s(a__from(mark(z0))), mark(x2)), MARK(x2))
   A__SEL(s(s(sel(z0, z1))), cons(x1, x2)) -> c4(A__SEL(s(a__sel(mark(z0), mark(z1))), mark(x2)), MARK(x2))
   A__SEL(s(s(cons(z0, z1))), cons(x1, x2)) -> c4(A__SEL(s(cons(mark(z0), z1)), mark(x2)), MARK(x2))
   A__SEL(s(s(s(z0))), cons(x1, x2)) -> c4(A__SEL(s(s(mark(z0))), mark(x2)), MARK(x2))
   A__SEL(s(s(0)), cons(x1, x2)) -> c4(A__SEL(s(0), mark(x2)), MARK(x2))
K tuples:none
Defined Rule Symbols:   a__from_1, a__sel_2, mark_1

Defined Pair Symbols:   A__FROM_1, A__SEL_2, MARK_1

Compound Symbols:   c_1, c2_1, c6_2, c9_1, c10_1, c3_1, c4_2, c4_1, c7_2, c7_1, c8_2, c8_1, c3_2


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

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

(134)
Obligation:
Complexity Dependency Tuples Problem

Rules:
   a__from(z0) -> cons(mark(z0), from(s(z0)))
   a__from(z0) -> from(z0)
   a__sel(0, cons(z0, z1)) -> mark(z0)
   a__sel(s(z0), cons(z1, z2)) -> a__sel(mark(z0), mark(z2))
   a__sel(z0, z1) -> sel(z0, z1)
   mark(from(z0)) -> a__from(mark(z0))
   mark(sel(z0, z1)) -> a__sel(mark(z0), mark(z1))
   mark(cons(z0, z1)) -> cons(mark(z0), z1)
   mark(s(z0)) -> s(mark(z0))
   mark(0) -> 0
Tuples:
   A__FROM(z0) -> c(MARK(z0))
   A__SEL(0, cons(z0, z1)) -> c2(MARK(z0))
   MARK(from(z0)) -> c6(A__FROM(mark(z0)), MARK(z0))
   MARK(cons(z0, z1)) -> c9(MARK(z0))
   MARK(s(z0)) -> c10(MARK(z0))
   A__SEL(s(x0), cons(x1, s(z0))) -> c3(MARK(x0))
   A__SEL(s(x0), cons(x1, 0)) -> c3(MARK(x0))
   A__SEL(s(cons(z0, z1)), cons(x1, x2)) -> c3(MARK(cons(z0, z1)))
   A__SEL(s(0), cons(x1, x2)) -> c4(A__SEL(0, mark(x2)), MARK(x2))
   A__SEL(s(x0), cons(x1, s(z0))) -> c4(MARK(s(z0)))
   A__SEL(s(cons(z0, z1)), cons(x1, x2)) -> c4(MARK(x2))
   MARK(sel(x0, from(z0))) -> c7(A__SEL(mark(x0), a__from(mark(z0))), MARK(x0))
   MARK(sel(x0, sel(z0, z1))) -> c7(A__SEL(mark(x0), a__sel(mark(z0), mark(z1))), MARK(x0))
   MARK(sel(x0, cons(z0, z1))) -> c7(A__SEL(mark(x0), cons(mark(z0), z1)), MARK(x0))
   MARK(sel(from(z0), x1)) -> c7(A__SEL(a__from(mark(z0)), mark(x1)), MARK(from(z0)))
   MARK(sel(sel(z0, z1), x1)) -> c7(A__SEL(a__sel(mark(z0), mark(z1)), mark(x1)), MARK(sel(z0, z1)))
   MARK(sel(s(z0), x1)) -> c7(A__SEL(s(mark(z0)), mark(x1)), MARK(s(z0)))
   MARK(sel(x0, s(z0))) -> c7(MARK(x0))
   MARK(sel(x0, 0)) -> c7(MARK(x0))
   MARK(sel(cons(z0, z1), x1)) -> c7(MARK(cons(z0, z1)))
   MARK(sel(0, x1)) -> c7(A__SEL(0, mark(x1)))
   MARK(sel(x0, from(z0))) -> c8(A__SEL(mark(x0), a__from(mark(z0))), MARK(from(z0)))
   MARK(sel(x0, sel(z0, z1))) -> c8(A__SEL(mark(x0), a__sel(mark(z0), mark(z1))), MARK(sel(z0, z1)))
   MARK(sel(x0, cons(z0, z1))) -> c8(A__SEL(mark(x0), cons(mark(z0), z1)), MARK(cons(z0, z1)))
   MARK(sel(from(z0), x1)) -> c8(A__SEL(a__from(mark(z0)), mark(x1)), MARK(x1))
   MARK(sel(sel(z0, z1), x1)) -> c8(A__SEL(a__sel(mark(z0), mark(z1)), mark(x1)), MARK(x1))
   MARK(sel(s(z0), x1)) -> c8(A__SEL(s(mark(z0)), mark(x1)), MARK(x1))
   MARK(sel(0, x1)) -> c8(A__SEL(0, mark(x1)), MARK(x1))
   MARK(sel(x0, s(z0))) -> c8(MARK(s(z0)))
   MARK(sel(cons(z0, z1), x1)) -> c8(MARK(x1))
   A__SEL(s(x0), cons(x1, from(x2))) -> c3(A__SEL(mark(x0), cons(mark(mark(x2)), from(s(mark(x2))))), MARK(x0))
   A__SEL(s(x0), cons(x1, from(from(z0)))) -> c3(A__SEL(mark(x0), a__from(a__from(mark(z0)))), MARK(x0))
   A__SEL(s(x0), cons(x1, from(sel(z0, z1)))) -> c3(A__SEL(mark(x0), a__from(a__sel(mark(z0), mark(z1)))), MARK(x0))
   A__SEL(s(x0), cons(x1, from(cons(z0, z1)))) -> c3(A__SEL(mark(x0), a__from(cons(mark(z0), z1))), MARK(x0))
   A__SEL(s(x0), cons(x1, from(s(z0)))) -> c3(A__SEL(mark(x0), a__from(s(mark(z0)))), MARK(x0))
   A__SEL(s(x0), cons(x1, from(0))) -> c3(A__SEL(mark(x0), a__from(0)), MARK(x0))
   A__SEL(s(from(z0)), cons(x1, from(x2))) -> c3(A__SEL(a__from(mark(z0)), a__from(mark(x2))), MARK(from(z0)))
   A__SEL(s(sel(z0, z1)), cons(x1, from(x2))) -> c3(A__SEL(a__sel(mark(z0), mark(z1)), a__from(mark(x2))), MARK(sel(z0, z1)))
   A__SEL(s(s(z0)), cons(x1, from(x2))) -> c3(A__SEL(s(mark(z0)), a__from(mark(x2))), MARK(s(z0)))
   A__SEL(s(x0), cons(x1, from(x2))) -> c3(MARK(x0))
   A__SEL(s(cons(z0, z1)), cons(x1, from(x2))) -> c3(MARK(cons(z0, z1)))
   A__SEL(s(0), cons(x1, from(x2))) -> c3(A__SEL(0, a__from(mark(x2))))
   A__SEL(s(x0), cons(x1, sel(x2, from(z0)))) -> c3(A__SEL(mark(x0), a__sel(mark(x2), a__from(mark(z0)))), MARK(x0))
   A__SEL(s(x0), cons(x1, sel(x2, sel(z0, z1)))) -> c3(A__SEL(mark(x0), a__sel(mark(x2), a__sel(mark(z0), mark(z1)))), MARK(x0))
   A__SEL(s(x0), cons(x1, sel(x2, cons(z0, z1)))) -> c3(A__SEL(mark(x0), a__sel(mark(x2), cons(mark(z0), z1))), MARK(x0))
   A__SEL(s(x0), cons(x1, sel(x2, s(z0)))) -> c3(A__SEL(mark(x0), a__sel(mark(x2), s(mark(z0)))), MARK(x0))
   A__SEL(s(x0), cons(x1, sel(x2, 0))) -> c3(A__SEL(mark(x0), a__sel(mark(x2), 0)), MARK(x0))
   A__SEL(s(x0), cons(x1, sel(from(z0), x3))) -> c3(A__SEL(mark(x0), a__sel(a__from(mark(z0)), mark(x3))), MARK(x0))
   A__SEL(s(x0), cons(x1, sel(sel(z0, z1), x3))) -> c3(A__SEL(mark(x0), a__sel(a__sel(mark(z0), mark(z1)), mark(x3))), MARK(x0))
   A__SEL(s(x0), cons(x1, sel(cons(z0, z1), x3))) -> c3(A__SEL(mark(x0), a__sel(cons(mark(z0), z1), mark(x3))), MARK(x0))
   A__SEL(s(x0), cons(x1, sel(s(z0), x3))) -> c3(A__SEL(mark(x0), a__sel(s(mark(z0)), mark(x3))), MARK(x0))
   A__SEL(s(x0), cons(x1, sel(0, x3))) -> c3(A__SEL(mark(x0), a__sel(0, mark(x3))), MARK(x0))
   A__SEL(s(from(z0)), cons(x1, sel(x2, x3))) -> c3(A__SEL(a__from(mark(z0)), a__sel(mark(x2), mark(x3))), MARK(from(z0)))
   A__SEL(s(sel(z0, z1)), cons(x1, sel(x2, x3))) -> c3(A__SEL(a__sel(mark(z0), mark(z1)), a__sel(mark(x2), mark(x3))), MARK(sel(z0, z1)))
   A__SEL(s(s(z0)), cons(x1, sel(x2, x3))) -> c3(A__SEL(s(mark(z0)), a__sel(mark(x2), mark(x3))), MARK(s(z0)))
   A__SEL(s(x0), cons(x1, sel(x2, x3))) -> c3(MARK(x0))
   A__SEL(s(cons(z0, z1)), cons(x1, sel(x2, x3))) -> c3(MARK(cons(z0, z1)))
   A__SEL(s(0), cons(x1, sel(x2, x3))) -> c3(A__SEL(0, a__sel(mark(x2), mark(x3))))
   A__SEL(s(x0), cons(x1, cons(from(z0), x3))) -> c3(A__SEL(mark(x0), cons(a__from(mark(z0)), x3)), MARK(x0))
   A__SEL(s(x0), cons(x1, cons(sel(z0, z1), x3))) -> c3(A__SEL(mark(x0), cons(a__sel(mark(z0), mark(z1)), x3)), MARK(x0))
   A__SEL(s(x0), cons(x1, cons(cons(z0, z1), x3))) -> c3(A__SEL(mark(x0), cons(cons(mark(z0), z1), x3)), MARK(x0))
   A__SEL(s(x0), cons(x1, cons(s(z0), x3))) -> c3(A__SEL(mark(x0), cons(s(mark(z0)), x3)), MARK(x0))
   A__SEL(s(x0), cons(x1, cons(0, x3))) -> c3(A__SEL(mark(x0), cons(0, x3)), MARK(x0))
   A__SEL(s(from(z0)), cons(x1, cons(x2, x3))) -> c3(A__SEL(a__from(mark(z0)), cons(mark(x2), x3)), MARK(from(z0)))
   A__SEL(s(sel(z0, z1)), cons(x1, cons(x2, x3))) -> c3(A__SEL(a__sel(mark(z0), mark(z1)), cons(mark(x2), x3)), MARK(sel(z0, z1)))
   A__SEL(s(s(z0)), cons(x1, cons(x2, x3))) -> c3(A__SEL(s(mark(z0)), cons(mark(x2), x3)), MARK(s(z0)))
   A__SEL(s(cons(z0, z1)), cons(x1, cons(x2, x3))) -> c3(MARK(cons(z0, z1)))
   A__SEL(s(0), cons(x1, cons(x2, x3))) -> c3(A__SEL(0, cons(mark(x2), x3)))
   A__SEL(s(from(from(z0))), cons(x1, x2)) -> c3(A__SEL(a__from(a__from(mark(z0))), mark(x2)), MARK(from(from(z0))))
   A__SEL(s(from(sel(z0, z1))), cons(x1, x2)) -> c3(A__SEL(a__from(a__sel(mark(z0), mark(z1))), mark(x2)), MARK(from(sel(z0, z1))))
   A__SEL(s(from(cons(z0, z1))), cons(x1, x2)) -> c3(A__SEL(a__from(cons(mark(z0), z1)), mark(x2)), MARK(from(cons(z0, z1))))
   A__SEL(s(from(s(z0))), cons(x1, x2)) -> c3(A__SEL(a__from(s(mark(z0))), mark(x2)), MARK(from(s(z0))))
   A__SEL(s(from(0)), cons(x1, x2)) -> c3(A__SEL(a__from(0), mark(x2)), MARK(from(0)))
   A__SEL(s(from(x0)), cons(x1, x2)) -> c3(MARK(from(x0)))
   A__SEL(s(from(x0)), cons(x1, s(z0))) -> c3(MARK(from(x0)))
   A__SEL(s(from(x0)), cons(x1, 0)) -> c3(MARK(from(x0)))
   A__SEL(s(sel(x0, from(z0))), cons(x2, x3)) -> c3(A__SEL(a__sel(mark(x0), a__from(mark(z0))), mark(x3)), MARK(sel(x0, from(z0))))
   A__SEL(s(sel(x0, sel(z0, z1))), cons(x2, x3)) -> c3(A__SEL(a__sel(mark(x0), a__sel(mark(z0), mark(z1))), mark(x3)), MARK(sel(x0, sel(z0, z1))))
   A__SEL(s(sel(x0, cons(z0, z1))), cons(x2, x3)) -> c3(A__SEL(a__sel(mark(x0), cons(mark(z0), z1)), mark(x3)), MARK(sel(x0, cons(z0, z1))))
   A__SEL(s(sel(x0, s(z0))), cons(x2, x3)) -> c3(A__SEL(a__sel(mark(x0), s(mark(z0))), mark(x3)), MARK(sel(x0, s(z0))))
   A__SEL(s(sel(x0, 0)), cons(x2, x3)) -> c3(A__SEL(a__sel(mark(x0), 0), mark(x3)), MARK(sel(x0, 0)))
   A__SEL(s(sel(from(z0), x1)), cons(x2, x3)) -> c3(A__SEL(a__sel(a__from(mark(z0)), mark(x1)), mark(x3)), MARK(sel(from(z0), x1)))
   A__SEL(s(sel(sel(z0, z1), x1)), cons(x2, x3)) -> c3(A__SEL(a__sel(a__sel(mark(z0), mark(z1)), mark(x1)), mark(x3)), MARK(sel(sel(z0, z1), x1)))
   A__SEL(s(sel(cons(z0, z1), x1)), cons(x2, x3)) -> c3(A__SEL(a__sel(cons(mark(z0), z1), mark(x1)), mark(x3)), MARK(sel(cons(z0, z1), x1)))
   A__SEL(s(sel(s(z0), x1)), cons(x2, x3)) -> c3(A__SEL(a__sel(s(mark(z0)), mark(x1)), mark(x3)), MARK(sel(s(z0), x1)))
   A__SEL(s(sel(0, x1)), cons(x2, x3)) -> c3(A__SEL(a__sel(0, mark(x1)), mark(x3)), MARK(sel(0, x1)))
   A__SEL(s(sel(x0, x1)), cons(x2, s(z0))) -> c3(MARK(sel(x0, x1)))
   A__SEL(s(sel(x0, x1)), cons(x2, 0)) -> c3(MARK(sel(x0, x1)))
   A__SEL(s(sel(x0, x1)), cons(x2, x3)) -> c3(MARK(sel(x0, x1)))
   A__SEL(s(s(from(z0))), cons(x1, x2)) -> c3(A__SEL(s(a__from(mark(z0))), mark(x2)), MARK(s(from(z0))))
   A__SEL(s(s(sel(z0, z1))), cons(x1, x2)) -> c3(A__SEL(s(a__sel(mark(z0), mark(z1))), mark(x2)), MARK(s(sel(z0, z1))))
   A__SEL(s(s(cons(z0, z1))), cons(x1, x2)) -> c3(A__SEL(s(cons(mark(z0), z1)), mark(x2)), MARK(s(cons(z0, z1))))
   A__SEL(s(s(s(z0))), cons(x1, x2)) -> c3(A__SEL(s(s(mark(z0))), mark(x2)), MARK(s(s(z0))))
   A__SEL(s(s(0)), cons(x1, x2)) -> c3(A__SEL(s(0), mark(x2)), MARK(s(0)))
   A__SEL(s(s(x0)), cons(x1, x2)) -> c3(MARK(s(x0)))
   A__SEL(s(s(x0)), cons(x1, s(z0))) -> c3(MARK(s(x0)))
   A__SEL(s(s(x0)), cons(x1, 0)) -> c3(MARK(s(x0)))
   A__SEL(s(x0), cons(x1, from(x2))) -> c4(A__SEL(mark(x0), cons(mark(mark(x2)), from(s(mark(x2))))), MARK(from(x2)))
   A__SEL(s(x0), cons(x1, from(from(z0)))) -> c4(A__SEL(mark(x0), a__from(a__from(mark(z0)))), MARK(from(from(z0))))
   A__SEL(s(x0), cons(x1, from(sel(z0, z1)))) -> c4(A__SEL(mark(x0), a__from(a__sel(mark(z0), mark(z1)))), MARK(from(sel(z0, z1))))
   A__SEL(s(x0), cons(x1, from(cons(z0, z1)))) -> c4(A__SEL(mark(x0), a__from(cons(mark(z0), z1))), MARK(from(cons(z0, z1))))
   A__SEL(s(x0), cons(x1, from(s(z0)))) -> c4(A__SEL(mark(x0), a__from(s(mark(z0)))), MARK(from(s(z0))))
   A__SEL(s(x0), cons(x1, from(0))) -> c4(A__SEL(mark(x0), a__from(0)), MARK(from(0)))
   A__SEL(s(from(z0)), cons(x1, from(x2))) -> c4(A__SEL(a__from(mark(z0)), a__from(mark(x2))), MARK(from(x2)))
   A__SEL(s(sel(z0, z1)), cons(x1, from(x2))) -> c4(A__SEL(a__sel(mark(z0), mark(z1)), a__from(mark(x2))), MARK(from(x2)))
   A__SEL(s(s(z0)), cons(x1, from(x2))) -> c4(A__SEL(s(mark(z0)), a__from(mark(x2))), MARK(from(x2)))
   A__SEL(s(0), cons(x1, from(x2))) -> c4(A__SEL(0, a__from(mark(x2))), MARK(from(x2)))
   A__SEL(s(x0), cons(x1, from(x2))) -> c4(MARK(from(x2)))
   A__SEL(s(cons(z0, z1)), cons(x1, from(x2))) -> c4(MARK(from(x2)))
   A__SEL(s(x0), cons(x1, sel(x2, from(z0)))) -> c4(A__SEL(mark(x0), a__sel(mark(x2), a__from(mark(z0)))), MARK(sel(x2, from(z0))))
   A__SEL(s(x0), cons(x1, sel(x2, sel(z0, z1)))) -> c4(A__SEL(mark(x0), a__sel(mark(x2), a__sel(mark(z0), mark(z1)))), MARK(sel(x2, sel(z0, z1))))
   A__SEL(s(x0), cons(x1, sel(x2, cons(z0, z1)))) -> c4(A__SEL(mark(x0), a__sel(mark(x2), cons(mark(z0), z1))), MARK(sel(x2, cons(z0, z1))))
   A__SEL(s(x0), cons(x1, sel(x2, s(z0)))) -> c4(A__SEL(mark(x0), a__sel(mark(x2), s(mark(z0)))), MARK(sel(x2, s(z0))))
   A__SEL(s(x0), cons(x1, sel(x2, 0))) -> c4(A__SEL(mark(x0), a__sel(mark(x2), 0)), MARK(sel(x2, 0)))
   A__SEL(s(x0), cons(x1, sel(from(z0), x3))) -> c4(A__SEL(mark(x0), a__sel(a__from(mark(z0)), mark(x3))), MARK(sel(from(z0), x3)))
   A__SEL(s(x0), cons(x1, sel(sel(z0, z1), x3))) -> c4(A__SEL(mark(x0), a__sel(a__sel(mark(z0), mark(z1)), mark(x3))), MARK(sel(sel(z0, z1), x3)))
   A__SEL(s(x0), cons(x1, sel(cons(z0, z1), x3))) -> c4(A__SEL(mark(x0), a__sel(cons(mark(z0), z1), mark(x3))), MARK(sel(cons(z0, z1), x3)))
   A__SEL(s(x0), cons(x1, sel(s(z0), x3))) -> c4(A__SEL(mark(x0), a__sel(s(mark(z0)), mark(x3))), MARK(sel(s(z0), x3)))
   A__SEL(s(x0), cons(x1, sel(0, x3))) -> c4(A__SEL(mark(x0), a__sel(0, mark(x3))), MARK(sel(0, x3)))
   A__SEL(s(from(z0)), cons(x1, sel(x2, x3))) -> c4(A__SEL(a__from(mark(z0)), a__sel(mark(x2), mark(x3))), MARK(sel(x2, x3)))
   A__SEL(s(sel(z0, z1)), cons(x1, sel(x2, x3))) -> c4(A__SEL(a__sel(mark(z0), mark(z1)), a__sel(mark(x2), mark(x3))), MARK(sel(x2, x3)))
   A__SEL(s(s(z0)), cons(x1, sel(x2, x3))) -> c4(A__SEL(s(mark(z0)), a__sel(mark(x2), mark(x3))), MARK(sel(x2, x3)))
   A__SEL(s(0), cons(x1, sel(x2, x3))) -> c4(A__SEL(0, a__sel(mark(x2), mark(x3))), MARK(sel(x2, x3)))
   A__SEL(s(x0), cons(x1, sel(x2, x3))) -> c4(MARK(sel(x2, x3)))
   A__SEL(s(cons(z0, z1)), cons(x1, sel(x2, x3))) -> c4(MARK(sel(x2, x3)))
   A__SEL(s(x0), cons(x1, cons(from(z0), x3))) -> c4(A__SEL(mark(x0), cons(a__from(mark(z0)), x3)), MARK(cons(from(z0), x3)))
   A__SEL(s(x0), cons(x1, cons(sel(z0, z1), x3))) -> c4(A__SEL(mark(x0), cons(a__sel(mark(z0), mark(z1)), x3)), MARK(cons(sel(z0, z1), x3)))
   A__SEL(s(x0), cons(x1, cons(cons(z0, z1), x3))) -> c4(A__SEL(mark(x0), cons(cons(mark(z0), z1), x3)), MARK(cons(cons(z0, z1), x3)))
   A__SEL(s(x0), cons(x1, cons(s(z0), x3))) -> c4(A__SEL(mark(x0), cons(s(mark(z0)), x3)), MARK(cons(s(z0), x3)))
   A__SEL(s(x0), cons(x1, cons(0, x3))) -> c4(A__SEL(mark(x0), cons(0, x3)), MARK(cons(0, x3)))
   A__SEL(s(from(z0)), cons(x1, cons(x2, x3))) -> c4(A__SEL(a__from(mark(z0)), cons(mark(x2), x3)), MARK(cons(x2, x3)))
   A__SEL(s(sel(z0, z1)), cons(x1, cons(x2, x3))) -> c4(A__SEL(a__sel(mark(z0), mark(z1)), cons(mark(x2), x3)), MARK(cons(x2, x3)))
   A__SEL(s(s(z0)), cons(x1, cons(x2, x3))) -> c4(A__SEL(s(mark(z0)), cons(mark(x2), x3)), MARK(cons(x2, x3)))
   A__SEL(s(0), cons(x1, cons(x2, x3))) -> c4(A__SEL(0, cons(mark(x2), x3)), MARK(cons(x2, x3)))
   A__SEL(s(x0), cons(x1, cons(x2, x3))) -> c4(MARK(cons(x2, x3)))
   A__SEL(s(cons(z0, z1)), cons(x1, cons(x2, x3))) -> c4(MARK(cons(x2, x3)))
   A__SEL(s(from(from(z0))), cons(x1, x2)) -> c4(A__SEL(a__from(a__from(mark(z0))), mark(x2)), MARK(x2))
   A__SEL(s(from(sel(z0, z1))), cons(x1, x2)) -> c4(A__SEL(a__from(a__sel(mark(z0), mark(z1))), mark(x2)), MARK(x2))
   A__SEL(s(from(cons(z0, z1))), cons(x1, x2)) -> c4(A__SEL(a__from(cons(mark(z0), z1)), mark(x2)), MARK(x2))
   A__SEL(s(from(s(z0))), cons(x1, x2)) -> c4(A__SEL(a__from(s(mark(z0))), mark(x2)), MARK(x2))
   A__SEL(s(from(0)), cons(x1, x2)) -> c4(A__SEL(a__from(0), mark(x2)), MARK(x2))
   A__SEL(s(from(x0)), cons(x1, s(z0))) -> c4(MARK(s(z0)))
   A__SEL(s(from(x0)), cons(x1, x2)) -> c4(MARK(x2))
   A__SEL(s(sel(x0, from(z0))), cons(x2, x3)) -> c4(A__SEL(a__sel(mark(x0), a__from(mark(z0))), mark(x3)), MARK(x3))
   A__SEL(s(sel(x0, sel(z0, z1))), cons(x2, x3)) -> c4(A__SEL(a__sel(mark(x0), a__sel(mark(z0), mark(z1))), mark(x3)), MARK(x3))
   A__SEL(s(sel(x0, cons(z0, z1))), cons(x2, x3)) -> c4(A__SEL(a__sel(mark(x0), cons(mark(z0), z1)), mark(x3)), MARK(x3))
   A__SEL(s(sel(x0, s(z0))), cons(x2, x3)) -> c4(A__SEL(a__sel(mark(x0), s(mark(z0))), mark(x3)), MARK(x3))
   A__SEL(s(sel(x0, 0)), cons(x2, x3)) -> c4(A__SEL(a__sel(mark(x0), 0), mark(x3)), MARK(x3))
   A__SEL(s(sel(from(z0), x1)), cons(x2, x3)) -> c4(A__SEL(a__sel(a__from(mark(z0)), mark(x1)), mark(x3)), MARK(x3))
   A__SEL(s(sel(sel(z0, z1), x1)), cons(x2, x3)) -> c4(A__SEL(a__sel(a__sel(mark(z0), mark(z1)), mark(x1)), mark(x3)), MARK(x3))
   A__SEL(s(sel(cons(z0, z1), x1)), cons(x2, x3)) -> c4(A__SEL(a__sel(cons(mark(z0), z1), mark(x1)), mark(x3)), MARK(x3))
   A__SEL(s(sel(s(z0), x1)), cons(x2, x3)) -> c4(A__SEL(a__sel(s(mark(z0)), mark(x1)), mark(x3)), MARK(x3))
   A__SEL(s(sel(0, x1)), cons(x2, x3)) -> c4(A__SEL(a__sel(0, mark(x1)), mark(x3)), MARK(x3))
   A__SEL(s(sel(x0, x1)), cons(x2, s(z0))) -> c4(MARK(s(z0)))
   A__SEL(s(sel(x0, x1)), cons(x2, x3)) -> c4(MARK(x3))
   A__SEL(s(s(from(z0))), cons(x1, x2)) -> c4(A__SEL(s(a__from(mark(z0))), mark(x2)), MARK(x2))
   A__SEL(s(s(sel(z0, z1))), cons(x1, x2)) -> c4(A__SEL(s(a__sel(mark(z0), mark(z1))), mark(x2)), MARK(x2))
   A__SEL(s(s(cons(z0, z1))), cons(x1, x2)) -> c4(A__SEL(s(cons(mark(z0), z1)), mark(x2)), MARK(x2))
   A__SEL(s(s(s(z0))), cons(x1, x2)) -> c4(A__SEL(s(s(mark(z0))), mark(x2)), MARK(x2))
   A__SEL(s(s(0)), cons(x1, x2)) -> c4(A__SEL(s(0), mark(x2)), MARK(x2))
   A__SEL(s(s(x0)), cons(x1, s(z0))) -> c4(MARK(s(z0)))
S tuples:
   A__FROM(z0) -> c(MARK(z0))
   A__SEL(0, cons(z0, z1)) -> c2(MARK(z0))
   MARK(from(z0)) -> c6(A__FROM(mark(z0)), MARK(z0))
   MARK(cons(z0, z1)) -> c9(MARK(z0))
   MARK(s(z0)) -> c10(MARK(z0))
   A__SEL(s(x0), cons(x1, s(z0))) -> c3(MARK(x0))
   A__SEL(s(x0), cons(x1, 0)) -> c3(MARK(x0))
   A__SEL(s(cons(z0, z1)), cons(x1, x2)) -> c3(MARK(cons(z0, z1)))
   A__SEL(s(0), cons(x1, x2)) -> c4(A__SEL(0, mark(x2)), MARK(x2))
   A__SEL(s(x0), cons(x1, s(z0))) -> c4(MARK(s(z0)))
   A__SEL(s(cons(z0, z1)), cons(x1, x2)) -> c4(MARK(x2))
   MARK(sel(x0, from(z0))) -> c7(A__SEL(mark(x0), a__from(mark(z0))), MARK(x0))
   MARK(sel(x0, sel(z0, z1))) -> c7(A__SEL(mark(x0), a__sel(mark(z0), mark(z1))), MARK(x0))
   MARK(sel(x0, cons(z0, z1))) -> c7(A__SEL(mark(x0), cons(mark(z0), z1)), MARK(x0))
   MARK(sel(from(z0), x1)) -> c7(A__SEL(a__from(mark(z0)), mark(x1)), MARK(from(z0)))
   MARK(sel(sel(z0, z1), x1)) -> c7(A__SEL(a__sel(mark(z0), mark(z1)), mark(x1)), MARK(sel(z0, z1)))
   MARK(sel(s(z0), x1)) -> c7(A__SEL(s(mark(z0)), mark(x1)), MARK(s(z0)))
   MARK(sel(x0, s(z0))) -> c7(MARK(x0))
   MARK(sel(x0, 0)) -> c7(MARK(x0))
   MARK(sel(cons(z0, z1), x1)) -> c7(MARK(cons(z0, z1)))
   MARK(sel(0, x1)) -> c7(A__SEL(0, mark(x1)))
   MARK(sel(x0, from(z0))) -> c8(A__SEL(mark(x0), a__from(mark(z0))), MARK(from(z0)))
   MARK(sel(x0, sel(z0, z1))) -> c8(A__SEL(mark(x0), a__sel(mark(z0), mark(z1))), MARK(sel(z0, z1)))
   MARK(sel(x0, cons(z0, z1))) -> c8(A__SEL(mark(x0), cons(mark(z0), z1)), MARK(cons(z0, z1)))
   MARK(sel(from(z0), x1)) -> c8(A__SEL(a__from(mark(z0)), mark(x1)), MARK(x1))
   MARK(sel(sel(z0, z1), x1)) -> c8(A__SEL(a__sel(mark(z0), mark(z1)), mark(x1)), MARK(x1))
   MARK(sel(s(z0), x1)) -> c8(A__SEL(s(mark(z0)), mark(x1)), MARK(x1))
   MARK(sel(0, x1)) -> c8(A__SEL(0, mark(x1)), MARK(x1))
   MARK(sel(x0, s(z0))) -> c8(MARK(s(z0)))
   MARK(sel(cons(z0, z1), x1)) -> c8(MARK(x1))
   A__SEL(s(x0), cons(x1, from(x2))) -> c3(A__SEL(mark(x0), cons(mark(mark(x2)), from(s(mark(x2))))), MARK(x0))
   A__SEL(s(x0), cons(x1, from(from(z0)))) -> c3(A__SEL(mark(x0), a__from(a__from(mark(z0)))), MARK(x0))
   A__SEL(s(x0), cons(x1, from(sel(z0, z1)))) -> c3(A__SEL(mark(x0), a__from(a__sel(mark(z0), mark(z1)))), MARK(x0))
   A__SEL(s(x0), cons(x1, from(cons(z0, z1)))) -> c3(A__SEL(mark(x0), a__from(cons(mark(z0), z1))), MARK(x0))
   A__SEL(s(x0), cons(x1, from(s(z0)))) -> c3(A__SEL(mark(x0), a__from(s(mark(z0)))), MARK(x0))
   A__SEL(s(x0), cons(x1, from(0))) -> c3(A__SEL(mark(x0), a__from(0)), MARK(x0))
   A__SEL(s(from(z0)), cons(x1, from(x2))) -> c3(A__SEL(a__from(mark(z0)), a__from(mark(x2))), MARK(from(z0)))
   A__SEL(s(sel(z0, z1)), cons(x1, from(x2))) -> c3(A__SEL(a__sel(mark(z0), mark(z1)), a__from(mark(x2))), MARK(sel(z0, z1)))
   A__SEL(s(s(z0)), cons(x1, from(x2))) -> c3(A__SEL(s(mark(z0)), a__from(mark(x2))), MARK(s(z0)))
   A__SEL(s(x0), cons(x1, from(x2))) -> c3(MARK(x0))
   A__SEL(s(cons(z0, z1)), cons(x1, from(x2))) -> c3(MARK(cons(z0, z1)))
   A__SEL(s(0), cons(x1, from(x2))) -> c3(A__SEL(0, a__from(mark(x2))))
   A__SEL(s(x0), cons(x1, sel(x2, from(z0)))) -> c3(A__SEL(mark(x0), a__sel(mark(x2), a__from(mark(z0)))), MARK(x0))
   A__SEL(s(x0), cons(x1, sel(x2, sel(z0, z1)))) -> c3(A__SEL(mark(x0), a__sel(mark(x2), a__sel(mark(z0), mark(z1)))), MARK(x0))
   A__SEL(s(x0), cons(x1, sel(x2, cons(z0, z1)))) -> c3(A__SEL(mark(x0), a__sel(mark(x2), cons(mark(z0), z1))), MARK(x0))
   A__SEL(s(x0), cons(x1, sel(x2, s(z0)))) -> c3(A__SEL(mark(x0), a__sel(mark(x2), s(mark(z0)))), MARK(x0))
   A__SEL(s(x0), cons(x1, sel(x2, 0))) -> c3(A__SEL(mark(x0), a__sel(mark(x2), 0)), MARK(x0))
   A__SEL(s(x0), cons(x1, sel(from(z0), x3))) -> c3(A__SEL(mark(x0), a__sel(a__from(mark(z0)), mark(x3))), MARK(x0))
   A__SEL(s(x0), cons(x1, sel(sel(z0, z1), x3))) -> c3(A__SEL(mark(x0), a__sel(a__sel(mark(z0), mark(z1)), mark(x3))), MARK(x0))
   A__SEL(s(x0), cons(x1, sel(cons(z0, z1), x3))) -> c3(A__SEL(mark(x0), a__sel(cons(mark(z0), z1), mark(x3))), MARK(x0))
   A__SEL(s(x0), cons(x1, sel(s(z0), x3))) -> c3(A__SEL(mark(x0), a__sel(s(mark(z0)), mark(x3))), MARK(x0))
   A__SEL(s(x0), cons(x1, sel(0, x3))) -> c3(A__SEL(mark(x0), a__sel(0, mark(x3))), MARK(x0))
   A__SEL(s(from(z0)), cons(x1, sel(x2, x3))) -> c3(A__SEL(a__from(mark(z0)), a__sel(mark(x2), mark(x3))), MARK(from(z0)))
   A__SEL(s(sel(z0, z1)), cons(x1, sel(x2, x3))) -> c3(A__SEL(a__sel(mark(z0), mark(z1)), a__sel(mark(x2), mark(x3))), MARK(sel(z0, z1)))
   A__SEL(s(s(z0)), cons(x1, sel(x2, x3))) -> c3(A__SEL(s(mark(z0)), a__sel(mark(x2), mark(x3))), MARK(s(z0)))
   A__SEL(s(x0), cons(x1, sel(x2, x3))) -> c3(MARK(x0))
   A__SEL(s(cons(z0, z1)), cons(x1, sel(x2, x3))) -> c3(MARK(cons(z0, z1)))
   A__SEL(s(0), cons(x1, sel(x2, x3))) -> c3(A__SEL(0, a__sel(mark(x2), mark(x3))))
   A__SEL(s(x0), cons(x1, cons(from(z0), x3))) -> c3(A__SEL(mark(x0), cons(a__from(mark(z0)), x3)), MARK(x0))
   A__SEL(s(x0), cons(x1, cons(sel(z0, z1), x3))) -> c3(A__SEL(mark(x0), cons(a__sel(mark(z0), mark(z1)), x3)), MARK(x0))
   A__SEL(s(x0), cons(x1, cons(cons(z0, z1), x3))) -> c3(A__SEL(mark(x0), cons(cons(mark(z0), z1), x3)), MARK(x0))
   A__SEL(s(x0), cons(x1, cons(s(z0), x3))) -> c3(A__SEL(mark(x0), cons(s(mark(z0)), x3)), MARK(x0))
   A__SEL(s(x0), cons(x1, cons(0, x3))) -> c3(A__SEL(mark(x0), cons(0, x3)), MARK(x0))
   A__SEL(s(from(z0)), cons(x1, cons(x2, x3))) -> c3(A__SEL(a__from(mark(z0)), cons(mark(x2), x3)), MARK(from(z0)))
   A__SEL(s(sel(z0, z1)), cons(x1, cons(x2, x3))) -> c3(A__SEL(a__sel(mark(z0), mark(z1)), cons(mark(x2), x3)), MARK(sel(z0, z1)))
   A__SEL(s(s(z0)), cons(x1, cons(x2, x3))) -> c3(A__SEL(s(mark(z0)), cons(mark(x2), x3)), MARK(s(z0)))
   A__SEL(s(cons(z0, z1)), cons(x1, cons(x2, x3))) -> c3(MARK(cons(z0, z1)))
   A__SEL(s(0), cons(x1, cons(x2, x3))) -> c3(A__SEL(0, cons(mark(x2), x3)))
   A__SEL(s(from(from(z0))), cons(x1, x2)) -> c3(A__SEL(a__from(a__from(mark(z0))), mark(x2)), MARK(from(from(z0))))
   A__SEL(s(from(sel(z0, z1))), cons(x1, x2)) -> c3(A__SEL(a__from(a__sel(mark(z0), mark(z1))), mark(x2)), MARK(from(sel(z0, z1))))
   A__SEL(s(from(cons(z0, z1))), cons(x1, x2)) -> c3(A__SEL(a__from(cons(mark(z0), z1)), mark(x2)), MARK(from(cons(z0, z1))))
   A__SEL(s(from(s(z0))), cons(x1, x2)) -> c3(A__SEL(a__from(s(mark(z0))), mark(x2)), MARK(from(s(z0))))
   A__SEL(s(from(0)), cons(x1, x2)) -> c3(A__SEL(a__from(0), mark(x2)), MARK(from(0)))
   A__SEL(s(from(x0)), cons(x1, x2)) -> c3(MARK(from(x0)))
   A__SEL(s(from(x0)), cons(x1, s(z0))) -> c3(MARK(from(x0)))
   A__SEL(s(from(x0)), cons(x1, 0)) -> c3(MARK(from(x0)))
   A__SEL(s(sel(x0, from(z0))), cons(x2, x3)) -> c3(A__SEL(a__sel(mark(x0), a__from(mark(z0))), mark(x3)), MARK(sel(x0, from(z0))))
   A__SEL(s(sel(x0, sel(z0, z1))), cons(x2, x3)) -> c3(A__SEL(a__sel(mark(x0), a__sel(mark(z0), mark(z1))), mark(x3)), MARK(sel(x0, sel(z0, z1))))
   A__SEL(s(sel(x0, cons(z0, z1))), cons(x2, x3)) -> c3(A__SEL(a__sel(mark(x0), cons(mark(z0), z1)), mark(x3)), MARK(sel(x0, cons(z0, z1))))
   A__SEL(s(sel(x0, s(z0))), cons(x2, x3)) -> c3(A__SEL(a__sel(mark(x0), s(mark(z0))), mark(x3)), MARK(sel(x0, s(z0))))
   A__SEL(s(sel(x0, 0)), cons(x2, x3)) -> c3(A__SEL(a__sel(mark(x0), 0), mark(x3)), MARK(sel(x0, 0)))
   A__SEL(s(sel(from(z0), x1)), cons(x2, x3)) -> c3(A__SEL(a__sel(a__from(mark(z0)), mark(x1)), mark(x3)), MARK(sel(from(z0), x1)))
   A__SEL(s(sel(sel(z0, z1), x1)), cons(x2, x3)) -> c3(A__SEL(a__sel(a__sel(mark(z0), mark(z1)), mark(x1)), mark(x3)), MARK(sel(sel(z0, z1), x1)))
   A__SEL(s(sel(cons(z0, z1), x1)), cons(x2, x3)) -> c3(A__SEL(a__sel(cons(mark(z0), z1), mark(x1)), mark(x3)), MARK(sel(cons(z0, z1), x1)))
   A__SEL(s(sel(s(z0), x1)), cons(x2, x3)) -> c3(A__SEL(a__sel(s(mark(z0)), mark(x1)), mark(x3)), MARK(sel(s(z0), x1)))
   A__SEL(s(sel(0, x1)), cons(x2, x3)) -> c3(A__SEL(a__sel(0, mark(x1)), mark(x3)), MARK(sel(0, x1)))
   A__SEL(s(sel(x0, x1)), cons(x2, s(z0))) -> c3(MARK(sel(x0, x1)))
   A__SEL(s(sel(x0, x1)), cons(x2, 0)) -> c3(MARK(sel(x0, x1)))
   A__SEL(s(sel(x0, x1)), cons(x2, x3)) -> c3(MARK(sel(x0, x1)))
   A__SEL(s(s(from(z0))), cons(x1, x2)) -> c3(A__SEL(s(a__from(mark(z0))), mark(x2)), MARK(s(from(z0))))
   A__SEL(s(s(sel(z0, z1))), cons(x1, x2)) -> c3(A__SEL(s(a__sel(mark(z0), mark(z1))), mark(x2)), MARK(s(sel(z0, z1))))
   A__SEL(s(s(cons(z0, z1))), cons(x1, x2)) -> c3(A__SEL(s(cons(mark(z0), z1)), mark(x2)), MARK(s(cons(z0, z1))))
   A__SEL(s(s(s(z0))), cons(x1, x2)) -> c3(A__SEL(s(s(mark(z0))), mark(x2)), MARK(s(s(z0))))
   A__SEL(s(s(0)), cons(x1, x2)) -> c3(A__SEL(s(0), mark(x2)), MARK(s(0)))
   A__SEL(s(s(x0)), cons(x1, x2)) -> c3(MARK(s(x0)))
   A__SEL(s(s(x0)), cons(x1, s(z0))) -> c3(MARK(s(x0)))
   A__SEL(s(s(x0)), cons(x1, 0)) -> c3(MARK(s(x0)))
   A__SEL(s(x0), cons(x1, from(x2))) -> c4(A__SEL(mark(x0), cons(mark(mark(x2)), from(s(mark(x2))))), MARK(from(x2)))
   A__SEL(s(x0), cons(x1, from(from(z0)))) -> c4(A__SEL(mark(x0), a__from(a__from(mark(z0)))), MARK(from(from(z0))))
   A__SEL(s(x0), cons(x1, from(sel(z0, z1)))) -> c4(A__SEL(mark(x0), a__from(a__sel(mark(z0), mark(z1)))), MARK(from(sel(z0, z1))))
   A__SEL(s(x0), cons(x1, from(cons(z0, z1)))) -> c4(A__SEL(mark(x0), a__from(cons(mark(z0), z1))), MARK(from(cons(z0, z1))))
   A__SEL(s(x0), cons(x1, from(s(z0)))) -> c4(A__SEL(mark(x0), a__from(s(mark(z0)))), MARK(from(s(z0))))
   A__SEL(s(x0), cons(x1, from(0))) -> c4(A__SEL(mark(x0), a__from(0)), MARK(from(0)))
   A__SEL(s(from(z0)), cons(x1, from(x2))) -> c4(A__SEL(a__from(mark(z0)), a__from(mark(x2))), MARK(from(x2)))
   A__SEL(s(sel(z0, z1)), cons(x1, from(x2))) -> c4(A__SEL(a__sel(mark(z0), mark(z1)), a__from(mark(x2))), MARK(from(x2)))
   A__SEL(s(s(z0)), cons(x1, from(x2))) -> c4(A__SEL(s(mark(z0)), a__from(mark(x2))), MARK(from(x2)))
   A__SEL(s(0), cons(x1, from(x2))) -> c4(A__SEL(0, a__from(mark(x2))), MARK(from(x2)))
   A__SEL(s(x0), cons(x1, from(x2))) -> c4(MARK(from(x2)))
   A__SEL(s(cons(z0, z1)), cons(x1, from(x2))) -> c4(MARK(from(x2)))
   A__SEL(s(x0), cons(x1, sel(x2, from(z0)))) -> c4(A__SEL(mark(x0), a__sel(mark(x2), a__from(mark(z0)))), MARK(sel(x2, from(z0))))
   A__SEL(s(x0), cons(x1, sel(x2, sel(z0, z1)))) -> c4(A__SEL(mark(x0), a__sel(mark(x2), a__sel(mark(z0), mark(z1)))), MARK(sel(x2, sel(z0, z1))))
   A__SEL(s(x0), cons(x1, sel(x2, cons(z0, z1)))) -> c4(A__SEL(mark(x0), a__sel(mark(x2), cons(mark(z0), z1))), MARK(sel(x2, cons(z0, z1))))
   A__SEL(s(x0), cons(x1, sel(x2, s(z0)))) -> c4(A__SEL(mark(x0), a__sel(mark(x2), s(mark(z0)))), MARK(sel(x2, s(z0))))
   A__SEL(s(x0), cons(x1, sel(x2, 0))) -> c4(A__SEL(mark(x0), a__sel(mark(x2), 0)), MARK(sel(x2, 0)))
   A__SEL(s(x0), cons(x1, sel(from(z0), x3))) -> c4(A__SEL(mark(x0), a__sel(a__from(mark(z0)), mark(x3))), MARK(sel(from(z0), x3)))
   A__SEL(s(x0), cons(x1, sel(sel(z0, z1), x3))) -> c4(A__SEL(mark(x0), a__sel(a__sel(mark(z0), mark(z1)), mark(x3))), MARK(sel(sel(z0, z1), x3)))
   A__SEL(s(x0), cons(x1, sel(cons(z0, z1), x3))) -> c4(A__SEL(mark(x0), a__sel(cons(mark(z0), z1), mark(x3))), MARK(sel(cons(z0, z1), x3)))
   A__SEL(s(x0), cons(x1, sel(s(z0), x3))) -> c4(A__SEL(mark(x0), a__sel(s(mark(z0)), mark(x3))), MARK(sel(s(z0), x3)))
   A__SEL(s(x0), cons(x1, sel(0, x3))) -> c4(A__SEL(mark(x0), a__sel(0, mark(x3))), MARK(sel(0, x3)))
   A__SEL(s(from(z0)), cons(x1, sel(x2, x3))) -> c4(A__SEL(a__from(mark(z0)), a__sel(mark(x2), mark(x3))), MARK(sel(x2, x3)))
   A__SEL(s(sel(z0, z1)), cons(x1, sel(x2, x3))) -> c4(A__SEL(a__sel(mark(z0), mark(z1)), a__sel(mark(x2), mark(x3))), MARK(sel(x2, x3)))
   A__SEL(s(s(z0)), cons(x1, sel(x2, x3))) -> c4(A__SEL(s(mark(z0)), a__sel(mark(x2), mark(x3))), MARK(sel(x2, x3)))
   A__SEL(s(0), cons(x1, sel(x2, x3))) -> c4(A__SEL(0, a__sel(mark(x2), mark(x3))), MARK(sel(x2, x3)))
   A__SEL(s(x0), cons(x1, sel(x2, x3))) -> c4(MARK(sel(x2, x3)))
   A__SEL(s(cons(z0, z1)), cons(x1, sel(x2, x3))) -> c4(MARK(sel(x2, x3)))
   A__SEL(s(x0), cons(x1, cons(from(z0), x3))) -> c4(A__SEL(mark(x0), cons(a__from(mark(z0)), x3)), MARK(cons(from(z0), x3)))
   A__SEL(s(x0), cons(x1, cons(sel(z0, z1), x3))) -> c4(A__SEL(mark(x0), cons(a__sel(mark(z0), mark(z1)), x3)), MARK(cons(sel(z0, z1), x3)))
   A__SEL(s(x0), cons(x1, cons(cons(z0, z1), x3))) -> c4(A__SEL(mark(x0), cons(cons(mark(z0), z1), x3)), MARK(cons(cons(z0, z1), x3)))
   A__SEL(s(x0), cons(x1, cons(s(z0), x3))) -> c4(A__SEL(mark(x0), cons(s(mark(z0)), x3)), MARK(cons(s(z0), x3)))
   A__SEL(s(x0), cons(x1, cons(0, x3))) -> c4(A__SEL(mark(x0), cons(0, x3)), MARK(cons(0, x3)))
   A__SEL(s(from(z0)), cons(x1, cons(x2, x3))) -> c4(A__SEL(a__from(mark(z0)), cons(mark(x2), x3)), MARK(cons(x2, x3)))
   A__SEL(s(sel(z0, z1)), cons(x1, cons(x2, x3))) -> c4(A__SEL(a__sel(mark(z0), mark(z1)), cons(mark(x2), x3)), MARK(cons(x2, x3)))
   A__SEL(s(s(z0)), cons(x1, cons(x2, x3))) -> c4(A__SEL(s(mark(z0)), cons(mark(x2), x3)), MARK(cons(x2, x3)))
   A__SEL(s(0), cons(x1, cons(x2, x3))) -> c4(A__SEL(0, cons(mark(x2), x3)), MARK(cons(x2, x3)))
   A__SEL(s(x0), cons(x1, cons(x2, x3))) -> c4(MARK(cons(x2, x3)))
   A__SEL(s(cons(z0, z1)), cons(x1, cons(x2, x3))) -> c4(MARK(cons(x2, x3)))
   A__SEL(s(from(from(z0))), cons(x1, x2)) -> c4(A__SEL(a__from(a__from(mark(z0))), mark(x2)), MARK(x2))
   A__SEL(s(from(sel(z0, z1))), cons(x1, x2)) -> c4(A__SEL(a__from(a__sel(mark(z0), mark(z1))), mark(x2)), MARK(x2))
   A__SEL(s(from(cons(z0, z1))), cons(x1, x2)) -> c4(A__SEL(a__from(cons(mark(z0), z1)), mark(x2)), MARK(x2))
   A__SEL(s(from(s(z0))), cons(x1, x2)) -> c4(A__SEL(a__from(s(mark(z0))), mark(x2)), MARK(x2))
   A__SEL(s(from(0)), cons(x1, x2)) -> c4(A__SEL(a__from(0), mark(x2)), MARK(x2))
   A__SEL(s(from(x0)), cons(x1, s(z0))) -> c4(MARK(s(z0)))
   A__SEL(s(from(x0)), cons(x1, x2)) -> c4(MARK(x2))
   A__SEL(s(sel(x0, from(z0))), cons(x2, x3)) -> c4(A__SEL(a__sel(mark(x0), a__from(mark(z0))), mark(x3)), MARK(x3))
   A__SEL(s(sel(x0, sel(z0, z1))), cons(x2, x3)) -> c4(A__SEL(a__sel(mark(x0), a__sel(mark(z0), mark(z1))), mark(x3)), MARK(x3))
   A__SEL(s(sel(x0, cons(z0, z1))), cons(x2, x3)) -> c4(A__SEL(a__sel(mark(x0), cons(mark(z0), z1)), mark(x3)), MARK(x3))
   A__SEL(s(sel(x0, s(z0))), cons(x2, x3)) -> c4(A__SEL(a__sel(mark(x0), s(mark(z0))), mark(x3)), MARK(x3))
   A__SEL(s(sel(x0, 0)), cons(x2, x3)) -> c4(A__SEL(a__sel(mark(x0), 0), mark(x3)), MARK(x3))
   A__SEL(s(sel(from(z0), x1)), cons(x2, x3)) -> c4(A__SEL(a__sel(a__from(mark(z0)), mark(x1)), mark(x3)), MARK(x3))
   A__SEL(s(sel(sel(z0, z1), x1)), cons(x2, x3)) -> c4(A__SEL(a__sel(a__sel(mark(z0), mark(z1)), mark(x1)), mark(x3)), MARK(x3))
   A__SEL(s(sel(cons(z0, z1), x1)), cons(x2, x3)) -> c4(A__SEL(a__sel(cons(mark(z0), z1), mark(x1)), mark(x3)), MARK(x3))
   A__SEL(s(sel(s(z0), x1)), cons(x2, x3)) -> c4(A__SEL(a__sel(s(mark(z0)), mark(x1)), mark(x3)), MARK(x3))
   A__SEL(s(sel(0, x1)), cons(x2, x3)) -> c4(A__SEL(a__sel(0, mark(x1)), mark(x3)), MARK(x3))
   A__SEL(s(sel(x0, x1)), cons(x2, s(z0))) -> c4(MARK(s(z0)))
   A__SEL(s(sel(x0, x1)), cons(x2, x3)) -> c4(MARK(x3))
   A__SEL(s(s(from(z0))), cons(x1, x2)) -> c4(A__SEL(s(a__from(mark(z0))), mark(x2)), MARK(x2))
   A__SEL(s(s(sel(z0, z1))), cons(x1, x2)) -> c4(A__SEL(s(a__sel(mark(z0), mark(z1))), mark(x2)), MARK(x2))
   A__SEL(s(s(cons(z0, z1))), cons(x1, x2)) -> c4(A__SEL(s(cons(mark(z0), z1)), mark(x2)), MARK(x2))
   A__SEL(s(s(s(z0))), cons(x1, x2)) -> c4(A__SEL(s(s(mark(z0))), mark(x2)), MARK(x2))
   A__SEL(s(s(0)), cons(x1, x2)) -> c4(A__SEL(s(0), mark(x2)), MARK(x2))
   A__SEL(s(s(x0)), cons(x1, s(z0))) -> c4(MARK(s(z0)))
K tuples:none
Defined Rule Symbols:   a__from_1, a__sel_2, mark_1

Defined Pair Symbols:   A__FROM_1, A__SEL_2, MARK_1

Compound Symbols:   c_1, c2_1, c6_2, c9_1, c10_1, c3_1, c4_2, c4_1, c7_2, c7_1, c8_2, c8_1, c3_2


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

(135) CdtNarrowingProof (BOTH BOUNDS(ID, ID))
Use narrowing to replace A__SEL(s(0), cons(x1, x2)) -> c4(A__SEL(0, mark(x2)), MARK(x2)) by 
   A__SEL(s(0), cons(x0, from(z0))) -> c4(A__SEL(0, a__from(mark(z0))), MARK(from(z0)))
   A__SEL(s(0), cons(x0, sel(z0, z1))) -> c4(A__SEL(0, a__sel(mark(z0), mark(z1))), MARK(sel(z0, z1)))
   A__SEL(s(0), cons(x0, cons(z0, z1))) -> c4(A__SEL(0, cons(mark(z0), z1)), MARK(cons(z0, z1)))
   A__SEL(s(0), cons(x0, s(z0))) -> c4(A__SEL(0, s(mark(z0))), MARK(s(z0)))
   A__SEL(s(0), cons(x0, 0)) -> c4(A__SEL(0, 0), MARK(0))

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

(136)
Obligation:
Complexity Dependency Tuples Problem

Rules:
   a__from(z0) -> cons(mark(z0), from(s(z0)))
   a__from(z0) -> from(z0)
   a__sel(0, cons(z0, z1)) -> mark(z0)
   a__sel(s(z0), cons(z1, z2)) -> a__sel(mark(z0), mark(z2))
   a__sel(z0, z1) -> sel(z0, z1)
   mark(from(z0)) -> a__from(mark(z0))
   mark(sel(z0, z1)) -> a__sel(mark(z0), mark(z1))
   mark(cons(z0, z1)) -> cons(mark(z0), z1)
   mark(s(z0)) -> s(mark(z0))
   mark(0) -> 0
Tuples:
   A__FROM(z0) -> c(MARK(z0))
   A__SEL(0, cons(z0, z1)) -> c2(MARK(z0))
   MARK(from(z0)) -> c6(A__FROM(mark(z0)), MARK(z0))
   MARK(cons(z0, z1)) -> c9(MARK(z0))
   MARK(s(z0)) -> c10(MARK(z0))
   A__SEL(s(x0), cons(x1, s(z0))) -> c3(MARK(x0))
   A__SEL(s(x0), cons(x1, 0)) -> c3(MARK(x0))
   A__SEL(s(cons(z0, z1)), cons(x1, x2)) -> c3(MARK(cons(z0, z1)))
   A__SEL(s(x0), cons(x1, s(z0))) -> c4(MARK(s(z0)))
   A__SEL(s(cons(z0, z1)), cons(x1, x2)) -> c4(MARK(x2))
   MARK(sel(x0, from(z0))) -> c7(A__SEL(mark(x0), a__from(mark(z0))), MARK(x0))
   MARK(sel(x0, sel(z0, z1))) -> c7(A__SEL(mark(x0), a__sel(mark(z0), mark(z1))), MARK(x0))
   MARK(sel(x0, cons(z0, z1))) -> c7(A__SEL(mark(x0), cons(mark(z0), z1)), MARK(x0))
   MARK(sel(from(z0), x1)) -> c7(A__SEL(a__from(mark(z0)), mark(x1)), MARK(from(z0)))
   MARK(sel(sel(z0, z1), x1)) -> c7(A__SEL(a__sel(mark(z0), mark(z1)), mark(x1)), MARK(sel(z0, z1)))
   MARK(sel(s(z0), x1)) -> c7(A__SEL(s(mark(z0)), mark(x1)), MARK(s(z0)))
   MARK(sel(x0, s(z0))) -> c7(MARK(x0))
   MARK(sel(x0, 0)) -> c7(MARK(x0))
   MARK(sel(cons(z0, z1), x1)) -> c7(MARK(cons(z0, z1)))
   MARK(sel(0, x1)) -> c7(A__SEL(0, mark(x1)))
   MARK(sel(x0, from(z0))) -> c8(A__SEL(mark(x0), a__from(mark(z0))), MARK(from(z0)))
   MARK(sel(x0, sel(z0, z1))) -> c8(A__SEL(mark(x0), a__sel(mark(z0), mark(z1))), MARK(sel(z0, z1)))
   MARK(sel(x0, cons(z0, z1))) -> c8(A__SEL(mark(x0), cons(mark(z0), z1)), MARK(cons(z0, z1)))
   MARK(sel(from(z0), x1)) -> c8(A__SEL(a__from(mark(z0)), mark(x1)), MARK(x1))
   MARK(sel(sel(z0, z1), x1)) -> c8(A__SEL(a__sel(mark(z0), mark(z1)), mark(x1)), MARK(x1))
   MARK(sel(s(z0), x1)) -> c8(A__SEL(s(mark(z0)), mark(x1)), MARK(x1))
   MARK(sel(0, x1)) -> c8(A__SEL(0, mark(x1)), MARK(x1))
   MARK(sel(x0, s(z0))) -> c8(MARK(s(z0)))
   MARK(sel(cons(z0, z1), x1)) -> c8(MARK(x1))
   A__SEL(s(x0), cons(x1, from(x2))) -> c3(A__SEL(mark(x0), cons(mark(mark(x2)), from(s(mark(x2))))), MARK(x0))
   A__SEL(s(x0), cons(x1, from(from(z0)))) -> c3(A__SEL(mark(x0), a__from(a__from(mark(z0)))), MARK(x0))
   A__SEL(s(x0), cons(x1, from(sel(z0, z1)))) -> c3(A__SEL(mark(x0), a__from(a__sel(mark(z0), mark(z1)))), MARK(x0))
   A__SEL(s(x0), cons(x1, from(cons(z0, z1)))) -> c3(A__SEL(mark(x0), a__from(cons(mark(z0), z1))), MARK(x0))
   A__SEL(s(x0), cons(x1, from(s(z0)))) -> c3(A__SEL(mark(x0), a__from(s(mark(z0)))), MARK(x0))
   A__SEL(s(x0), cons(x1, from(0))) -> c3(A__SEL(mark(x0), a__from(0)), MARK(x0))
   A__SEL(s(from(z0)), cons(x1, from(x2))) -> c3(A__SEL(a__from(mark(z0)), a__from(mark(x2))), MARK(from(z0)))
   A__SEL(s(sel(z0, z1)), cons(x1, from(x2))) -> c3(A__SEL(a__sel(mark(z0), mark(z1)), a__from(mark(x2))), MARK(sel(z0, z1)))
   A__SEL(s(s(z0)), cons(x1, from(x2))) -> c3(A__SEL(s(mark(z0)), a__from(mark(x2))), MARK(s(z0)))
   A__SEL(s(x0), cons(x1, from(x2))) -> c3(MARK(x0))
   A__SEL(s(cons(z0, z1)), cons(x1, from(x2))) -> c3(MARK(cons(z0, z1)))
   A__SEL(s(0), cons(x1, from(x2))) -> c3(A__SEL(0, a__from(mark(x2))))
   A__SEL(s(x0), cons(x1, sel(x2, from(z0)))) -> c3(A__SEL(mark(x0), a__sel(mark(x2), a__from(mark(z0)))), MARK(x0))
   A__SEL(s(x0), cons(x1, sel(x2, sel(z0, z1)))) -> c3(A__SEL(mark(x0), a__sel(mark(x2), a__sel(mark(z0), mark(z1)))), MARK(x0))
   A__SEL(s(x0), cons(x1, sel(x2, cons(z0, z1)))) -> c3(A__SEL(mark(x0), a__sel(mark(x2), cons(mark(z0), z1))), MARK(x0))
   A__SEL(s(x0), cons(x1, sel(x2, s(z0)))) -> c3(A__SEL(mark(x0), a__sel(mark(x2), s(mark(z0)))), MARK(x0))
   A__SEL(s(x0), cons(x1, sel(x2, 0))) -> c3(A__SEL(mark(x0), a__sel(mark(x2), 0)), MARK(x0))
   A__SEL(s(x0), cons(x1, sel(from(z0), x3))) -> c3(A__SEL(mark(x0), a__sel(a__from(mark(z0)), mark(x3))), MARK(x0))
   A__SEL(s(x0), cons(x1, sel(sel(z0, z1), x3))) -> c3(A__SEL(mark(x0), a__sel(a__sel(mark(z0), mark(z1)), mark(x3))), MARK(x0))
   A__SEL(s(x0), cons(x1, sel(cons(z0, z1), x3))) -> c3(A__SEL(mark(x0), a__sel(cons(mark(z0), z1), mark(x3))), MARK(x0))
   A__SEL(s(x0), cons(x1, sel(s(z0), x3))) -> c3(A__SEL(mark(x0), a__sel(s(mark(z0)), mark(x3))), MARK(x0))
   A__SEL(s(x0), cons(x1, sel(0, x3))) -> c3(A__SEL(mark(x0), a__sel(0, mark(x3))), MARK(x0))
   A__SEL(s(from(z0)), cons(x1, sel(x2, x3))) -> c3(A__SEL(a__from(mark(z0)), a__sel(mark(x2), mark(x3))), MARK(from(z0)))
   A__SEL(s(sel(z0, z1)), cons(x1, sel(x2, x3))) -> c3(A__SEL(a__sel(mark(z0), mark(z1)), a__sel(mark(x2), mark(x3))), MARK(sel(z0, z1)))
   A__SEL(s(s(z0)), cons(x1, sel(x2, x3))) -> c3(A__SEL(s(mark(z0)), a__sel(mark(x2), mark(x3))), MARK(s(z0)))
   A__SEL(s(x0), cons(x1, sel(x2, x3))) -> c3(MARK(x0))
   A__SEL(s(cons(z0, z1)), cons(x1, sel(x2, x3))) -> c3(MARK(cons(z0, z1)))
   A__SEL(s(0), cons(x1, sel(x2, x3))) -> c3(A__SEL(0, a__sel(mark(x2), mark(x3))))
   A__SEL(s(x0), cons(x1, cons(from(z0), x3))) -> c3(A__SEL(mark(x0), cons(a__from(mark(z0)), x3)), MARK(x0))
   A__SEL(s(x0), cons(x1, cons(sel(z0, z1), x3))) -> c3(A__SEL(mark(x0), cons(a__sel(mark(z0), mark(z1)), x3)), MARK(x0))
   A__SEL(s(x0), cons(x1, cons(cons(z0, z1), x3))) -> c3(A__SEL(mark(x0), cons(cons(mark(z0), z1), x3)), MARK(x0))
   A__SEL(s(x0), cons(x1, cons(s(z0), x3))) -> c3(A__SEL(mark(x0), cons(s(mark(z0)), x3)), MARK(x0))
   A__SEL(s(x0), cons(x1, cons(0, x3))) -> c3(A__SEL(mark(x0), cons(0, x3)), MARK(x0))
   A__SEL(s(from(z0)), cons(x1, cons(x2, x3))) -> c3(A__SEL(a__from(mark(z0)), cons(mark(x2), x3)), MARK(from(z0)))
   A__SEL(s(sel(z0, z1)), cons(x1, cons(x2, x3))) -> c3(A__SEL(a__sel(mark(z0), mark(z1)), cons(mark(x2), x3)), MARK(sel(z0, z1)))
   A__SEL(s(s(z0)), cons(x1, cons(x2, x3))) -> c3(A__SEL(s(mark(z0)), cons(mark(x2), x3)), MARK(s(z0)))
   A__SEL(s(cons(z0, z1)), cons(x1, cons(x2, x3))) -> c3(MARK(cons(z0, z1)))
   A__SEL(s(0), cons(x1, cons(x2, x3))) -> c3(A__SEL(0, cons(mark(x2), x3)))
   A__SEL(s(from(from(z0))), cons(x1, x2)) -> c3(A__SEL(a__from(a__from(mark(z0))), mark(x2)), MARK(from(from(z0))))
   A__SEL(s(from(sel(z0, z1))), cons(x1, x2)) -> c3(A__SEL(a__from(a__sel(mark(z0), mark(z1))), mark(x2)), MARK(from(sel(z0, z1))))
   A__SEL(s(from(cons(z0, z1))), cons(x1, x2)) -> c3(A__SEL(a__from(cons(mark(z0), z1)), mark(x2)), MARK(from(cons(z0, z1))))
   A__SEL(s(from(s(z0))), cons(x1, x2)) -> c3(A__SEL(a__from(s(mark(z0))), mark(x2)), MARK(from(s(z0))))
   A__SEL(s(from(0)), cons(x1, x2)) -> c3(A__SEL(a__from(0), mark(x2)), MARK(from(0)))
   A__SEL(s(from(x0)), cons(x1, x2)) -> c3(MARK(from(x0)))
   A__SEL(s(from(x0)), cons(x1, s(z0))) -> c3(MARK(from(x0)))
   A__SEL(s(from(x0)), cons(x1, 0)) -> c3(MARK(from(x0)))
   A__SEL(s(sel(x0, from(z0))), cons(x2, x3)) -> c3(A__SEL(a__sel(mark(x0), a__from(mark(z0))), mark(x3)), MARK(sel(x0, from(z0))))
   A__SEL(s(sel(x0, sel(z0, z1))), cons(x2, x3)) -> c3(A__SEL(a__sel(mark(x0), a__sel(mark(z0), mark(z1))), mark(x3)), MARK(sel(x0, sel(z0, z1))))
   A__SEL(s(sel(x0, cons(z0, z1))), cons(x2, x3)) -> c3(A__SEL(a__sel(mark(x0), cons(mark(z0), z1)), mark(x3)), MARK(sel(x0, cons(z0, z1))))
   A__SEL(s(sel(x0, s(z0))), cons(x2, x3)) -> c3(A__SEL(a__sel(mark(x0), s(mark(z0))), mark(x3)), MARK(sel(x0, s(z0))))
   A__SEL(s(sel(x0, 0)), cons(x2, x3)) -> c3(A__SEL(a__sel(mark(x0), 0), mark(x3)), MARK(sel(x0, 0)))
   A__SEL(s(sel(from(z0), x1)), cons(x2, x3)) -> c3(A__SEL(a__sel(a__from(mark(z0)), mark(x1)), mark(x3)), MARK(sel(from(z0), x1)))
   A__SEL(s(sel(sel(z0, z1), x1)), cons(x2, x3)) -> c3(A__SEL(a__sel(a__sel(mark(z0), mark(z1)), mark(x1)), mark(x3)), MARK(sel(sel(z0, z1), x1)))
   A__SEL(s(sel(cons(z0, z1), x1)), cons(x2, x3)) -> c3(A__SEL(a__sel(cons(mark(z0), z1), mark(x1)), mark(x3)), MARK(sel(cons(z0, z1), x1)))
   A__SEL(s(sel(s(z0), x1)), cons(x2, x3)) -> c3(A__SEL(a__sel(s(mark(z0)), mark(x1)), mark(x3)), MARK(sel(s(z0), x1)))
   A__SEL(s(sel(0, x1)), cons(x2, x3)) -> c3(A__SEL(a__sel(0, mark(x1)), mark(x3)), MARK(sel(0, x1)))
   A__SEL(s(sel(x0, x1)), cons(x2, s(z0))) -> c3(MARK(sel(x0, x1)))
   A__SEL(s(sel(x0, x1)), cons(x2, 0)) -> c3(MARK(sel(x0, x1)))
   A__SEL(s(sel(x0, x1)), cons(x2, x3)) -> c3(MARK(sel(x0, x1)))
   A__SEL(s(s(from(z0))), cons(x1, x2)) -> c3(A__SEL(s(a__from(mark(z0))), mark(x2)), MARK(s(from(z0))))
   A__SEL(s(s(sel(z0, z1))), cons(x1, x2)) -> c3(A__SEL(s(a__sel(mark(z0), mark(z1))), mark(x2)), MARK(s(sel(z0, z1))))
   A__SEL(s(s(cons(z0, z1))), cons(x1, x2)) -> c3(A__SEL(s(cons(mark(z0), z1)), mark(x2)), MARK(s(cons(z0, z1))))
   A__SEL(s(s(s(z0))), cons(x1, x2)) -> c3(A__SEL(s(s(mark(z0))), mark(x2)), MARK(s(s(z0))))
   A__SEL(s(s(0)), cons(x1, x2)) -> c3(A__SEL(s(0), mark(x2)), MARK(s(0)))
   A__SEL(s(s(x0)), cons(x1, x2)) -> c3(MARK(s(x0)))
   A__SEL(s(s(x0)), cons(x1, s(z0))) -> c3(MARK(s(x0)))
   A__SEL(s(s(x0)), cons(x1, 0)) -> c3(MARK(s(x0)))
   A__SEL(s(x0), cons(x1, from(x2))) -> c4(A__SEL(mark(x0), cons(mark(mark(x2)), from(s(mark(x2))))), MARK(from(x2)))
   A__SEL(s(x0), cons(x1, from(from(z0)))) -> c4(A__SEL(mark(x0), a__from(a__from(mark(z0)))), MARK(from(from(z0))))
   A__SEL(s(x0), cons(x1, from(sel(z0, z1)))) -> c4(A__SEL(mark(x0), a__from(a__sel(mark(z0), mark(z1)))), MARK(from(sel(z0, z1))))
   A__SEL(s(x0), cons(x1, from(cons(z0, z1)))) -> c4(A__SEL(mark(x0), a__from(cons(mark(z0), z1))), MARK(from(cons(z0, z1))))
   A__SEL(s(x0), cons(x1, from(s(z0)))) -> c4(A__SEL(mark(x0), a__from(s(mark(z0)))), MARK(from(s(z0))))
   A__SEL(s(x0), cons(x1, from(0))) -> c4(A__SEL(mark(x0), a__from(0)), MARK(from(0)))
   A__SEL(s(from(z0)), cons(x1, from(x2))) -> c4(A__SEL(a__from(mark(z0)), a__from(mark(x2))), MARK(from(x2)))
   A__SEL(s(sel(z0, z1)), cons(x1, from(x2))) -> c4(A__SEL(a__sel(mark(z0), mark(z1)), a__from(mark(x2))), MARK(from(x2)))
   A__SEL(s(s(z0)), cons(x1, from(x2))) -> c4(A__SEL(s(mark(z0)), a__from(mark(x2))), MARK(from(x2)))
   A__SEL(s(0), cons(x1, from(x2))) -> c4(A__SEL(0, a__from(mark(x2))), MARK(from(x2)))
   A__SEL(s(x0), cons(x1, from(x2))) -> c4(MARK(from(x2)))
   A__SEL(s(cons(z0, z1)), cons(x1, from(x2))) -> c4(MARK(from(x2)))
   A__SEL(s(x0), cons(x1, sel(x2, from(z0)))) -> c4(A__SEL(mark(x0), a__sel(mark(x2), a__from(mark(z0)))), MARK(sel(x2, from(z0))))
   A__SEL(s(x0), cons(x1, sel(x2, sel(z0, z1)))) -> c4(A__SEL(mark(x0), a__sel(mark(x2), a__sel(mark(z0), mark(z1)))), MARK(sel(x2, sel(z0, z1))))
   A__SEL(s(x0), cons(x1, sel(x2, cons(z0, z1)))) -> c4(A__SEL(mark(x0), a__sel(mark(x2), cons(mark(z0), z1))), MARK(sel(x2, cons(z0, z1))))
   A__SEL(s(x0), cons(x1, sel(x2, s(z0)))) -> c4(A__SEL(mark(x0), a__sel(mark(x2), s(mark(z0)))), MARK(sel(x2, s(z0))))
   A__SEL(s(x0), cons(x1, sel(x2, 0))) -> c4(A__SEL(mark(x0), a__sel(mark(x2), 0)), MARK(sel(x2, 0)))
   A__SEL(s(x0), cons(x1, sel(from(z0), x3))) -> c4(A__SEL(mark(x0), a__sel(a__from(mark(z0)), mark(x3))), MARK(sel(from(z0), x3)))
   A__SEL(s(x0), cons(x1, sel(sel(z0, z1), x3))) -> c4(A__SEL(mark(x0), a__sel(a__sel(mark(z0), mark(z1)), mark(x3))), MARK(sel(sel(z0, z1), x3)))
   A__SEL(s(x0), cons(x1, sel(cons(z0, z1), x3))) -> c4(A__SEL(mark(x0), a__sel(cons(mark(z0), z1), mark(x3))), MARK(sel(cons(z0, z1), x3)))
   A__SEL(s(x0), cons(x1, sel(s(z0), x3))) -> c4(A__SEL(mark(x0), a__sel(s(mark(z0)), mark(x3))), MARK(sel(s(z0), x3)))
   A__SEL(s(x0), cons(x1, sel(0, x3))) -> c4(A__SEL(mark(x0), a__sel(0, mark(x3))), MARK(sel(0, x3)))
   A__SEL(s(from(z0)), cons(x1, sel(x2, x3))) -> c4(A__SEL(a__from(mark(z0)), a__sel(mark(x2), mark(x3))), MARK(sel(x2, x3)))
   A__SEL(s(sel(z0, z1)), cons(x1, sel(x2, x3))) -> c4(A__SEL(a__sel(mark(z0), mark(z1)), a__sel(mark(x2), mark(x3))), MARK(sel(x2, x3)))
   A__SEL(s(s(z0)), cons(x1, sel(x2, x3))) -> c4(A__SEL(s(mark(z0)), a__sel(mark(x2), mark(x3))), MARK(sel(x2, x3)))
   A__SEL(s(0), cons(x1, sel(x2, x3))) -> c4(A__SEL(0, a__sel(mark(x2), mark(x3))), MARK(sel(x2, x3)))
   A__SEL(s(x0), cons(x1, sel(x2, x3))) -> c4(MARK(sel(x2, x3)))
   A__SEL(s(cons(z0, z1)), cons(x1, sel(x2, x3))) -> c4(MARK(sel(x2, x3)))
   A__SEL(s(x0), cons(x1, cons(from(z0), x3))) -> c4(A__SEL(mark(x0), cons(a__from(mark(z0)), x3)), MARK(cons(from(z0), x3)))
   A__SEL(s(x0), cons(x1, cons(sel(z0, z1), x3))) -> c4(A__SEL(mark(x0), cons(a__sel(mark(z0), mark(z1)), x3)), MARK(cons(sel(z0, z1), x3)))
   A__SEL(s(x0), cons(x1, cons(cons(z0, z1), x3))) -> c4(A__SEL(mark(x0), cons(cons(mark(z0), z1), x3)), MARK(cons(cons(z0, z1), x3)))
   A__SEL(s(x0), cons(x1, cons(s(z0), x3))) -> c4(A__SEL(mark(x0), cons(s(mark(z0)), x3)), MARK(cons(s(z0), x3)))
   A__SEL(s(x0), cons(x1, cons(0, x3))) -> c4(A__SEL(mark(x0), cons(0, x3)), MARK(cons(0, x3)))
   A__SEL(s(from(z0)), cons(x1, cons(x2, x3))) -> c4(A__SEL(a__from(mark(z0)), cons(mark(x2), x3)), MARK(cons(x2, x3)))
   A__SEL(s(sel(z0, z1)), cons(x1, cons(x2, x3))) -> c4(A__SEL(a__sel(mark(z0), mark(z1)), cons(mark(x2), x3)), MARK(cons(x2, x3)))
   A__SEL(s(s(z0)), cons(x1, cons(x2, x3))) -> c4(A__SEL(s(mark(z0)), cons(mark(x2), x3)), MARK(cons(x2, x3)))
   A__SEL(s(0), cons(x1, cons(x2, x3))) -> c4(A__SEL(0, cons(mark(x2), x3)), MARK(cons(x2, x3)))
   A__SEL(s(x0), cons(x1, cons(x2, x3))) -> c4(MARK(cons(x2, x3)))
   A__SEL(s(cons(z0, z1)), cons(x1, cons(x2, x3))) -> c4(MARK(cons(x2, x3)))
   A__SEL(s(from(from(z0))), cons(x1, x2)) -> c4(A__SEL(a__from(a__from(mark(z0))), mark(x2)), MARK(x2))
   A__SEL(s(from(sel(z0, z1))), cons(x1, x2)) -> c4(A__SEL(a__from(a__sel(mark(z0), mark(z1))), mark(x2)), MARK(x2))
   A__SEL(s(from(cons(z0, z1))), cons(x1, x2)) -> c4(A__SEL(a__from(cons(mark(z0), z1)), mark(x2)), MARK(x2))
   A__SEL(s(from(s(z0))), cons(x1, x2)) -> c4(A__SEL(a__from(s(mark(z0))), mark(x2)), MARK(x2))
   A__SEL(s(from(0)), cons(x1, x2)) -> c4(A__SEL(a__from(0), mark(x2)), MARK(x2))
   A__SEL(s(from(x0)), cons(x1, s(z0))) -> c4(MARK(s(z0)))
   A__SEL(s(from(x0)), cons(x1, x2)) -> c4(MARK(x2))
   A__SEL(s(sel(x0, from(z0))), cons(x2, x3)) -> c4(A__SEL(a__sel(mark(x0), a__from(mark(z0))), mark(x3)), MARK(x3))
   A__SEL(s(sel(x0, sel(z0, z1))), cons(x2, x3)) -> c4(A__SEL(a__sel(mark(x0), a__sel(mark(z0), mark(z1))), mark(x3)), MARK(x3))
   A__SEL(s(sel(x0, cons(z0, z1))), cons(x2, x3)) -> c4(A__SEL(a__sel(mark(x0), cons(mark(z0), z1)), mark(x3)), MARK(x3))
   A__SEL(s(sel(x0, s(z0))), cons(x2, x3)) -> c4(A__SEL(a__sel(mark(x0), s(mark(z0))), mark(x3)), MARK(x3))
   A__SEL(s(sel(x0, 0)), cons(x2, x3)) -> c4(A__SEL(a__sel(mark(x0), 0), mark(x3)), MARK(x3))
   A__SEL(s(sel(from(z0), x1)), cons(x2, x3)) -> c4(A__SEL(a__sel(a__from(mark(z0)), mark(x1)), mark(x3)), MARK(x3))
   A__SEL(s(sel(sel(z0, z1), x1)), cons(x2, x3)) -> c4(A__SEL(a__sel(a__sel(mark(z0), mark(z1)), mark(x1)), mark(x3)), MARK(x3))
   A__SEL(s(sel(cons(z0, z1), x1)), cons(x2, x3)) -> c4(A__SEL(a__sel(cons(mark(z0), z1), mark(x1)), mark(x3)), MARK(x3))
   A__SEL(s(sel(s(z0), x1)), cons(x2, x3)) -> c4(A__SEL(a__sel(s(mark(z0)), mark(x1)), mark(x3)), MARK(x3))
   A__SEL(s(sel(0, x1)), cons(x2, x3)) -> c4(A__SEL(a__sel(0, mark(x1)), mark(x3)), MARK(x3))
   A__SEL(s(sel(x0, x1)), cons(x2, s(z0))) -> c4(MARK(s(z0)))
   A__SEL(s(sel(x0, x1)), cons(x2, x3)) -> c4(MARK(x3))
   A__SEL(s(s(from(z0))), cons(x1, x2)) -> c4(A__SEL(s(a__from(mark(z0))), mark(x2)), MARK(x2))
   A__SEL(s(s(sel(z0, z1))), cons(x1, x2)) -> c4(A__SEL(s(a__sel(mark(z0), mark(z1))), mark(x2)), MARK(x2))
   A__SEL(s(s(cons(z0, z1))), cons(x1, x2)) -> c4(A__SEL(s(cons(mark(z0), z1)), mark(x2)), MARK(x2))
   A__SEL(s(s(s(z0))), cons(x1, x2)) -> c4(A__SEL(s(s(mark(z0))), mark(x2)), MARK(x2))
   A__SEL(s(s(0)), cons(x1, x2)) -> c4(A__SEL(s(0), mark(x2)), MARK(x2))
   A__SEL(s(s(x0)), cons(x1, s(z0))) -> c4(MARK(s(z0)))
   A__SEL(s(0), cons(x0, s(z0))) -> c4(A__SEL(0, s(mark(z0))), MARK(s(z0)))
   A__SEL(s(0), cons(x0, 0)) -> c4(A__SEL(0, 0), MARK(0))
S tuples:
   A__FROM(z0) -> c(MARK(z0))
   A__SEL(0, cons(z0, z1)) -> c2(MARK(z0))
   MARK(from(z0)) -> c6(A__FROM(mark(z0)), MARK(z0))
   MARK(cons(z0, z1)) -> c9(MARK(z0))
   MARK(s(z0)) -> c10(MARK(z0))
   A__SEL(s(x0), cons(x1, s(z0))) -> c3(MARK(x0))
   A__SEL(s(x0), cons(x1, 0)) -> c3(MARK(x0))
   A__SEL(s(cons(z0, z1)), cons(x1, x2)) -> c3(MARK(cons(z0, z1)))
   A__SEL(s(x0), cons(x1, s(z0))) -> c4(MARK(s(z0)))
   A__SEL(s(cons(z0, z1)), cons(x1, x2)) -> c4(MARK(x2))
   MARK(sel(x0, from(z0))) -> c7(A__SEL(mark(x0), a__from(mark(z0))), MARK(x0))
   MARK(sel(x0, sel(z0, z1))) -> c7(A__SEL(mark(x0), a__sel(mark(z0), mark(z1))), MARK(x0))
   MARK(sel(x0, cons(z0, z1))) -> c7(A__SEL(mark(x0), cons(mark(z0), z1)), MARK(x0))
   MARK(sel(from(z0), x1)) -> c7(A__SEL(a__from(mark(z0)), mark(x1)), MARK(from(z0)))
   MARK(sel(sel(z0, z1), x1)) -> c7(A__SEL(a__sel(mark(z0), mark(z1)), mark(x1)), MARK(sel(z0, z1)))
   MARK(sel(s(z0), x1)) -> c7(A__SEL(s(mark(z0)), mark(x1)), MARK(s(z0)))
   MARK(sel(x0, s(z0))) -> c7(MARK(x0))
   MARK(sel(x0, 0)) -> c7(MARK(x0))
   MARK(sel(cons(z0, z1), x1)) -> c7(MARK(cons(z0, z1)))
   MARK(sel(0, x1)) -> c7(A__SEL(0, mark(x1)))
   MARK(sel(x0, from(z0))) -> c8(A__SEL(mark(x0), a__from(mark(z0))), MARK(from(z0)))
   MARK(sel(x0, sel(z0, z1))) -> c8(A__SEL(mark(x0), a__sel(mark(z0), mark(z1))), MARK(sel(z0, z1)))
   MARK(sel(x0, cons(z0, z1))) -> c8(A__SEL(mark(x0), cons(mark(z0), z1)), MARK(cons(z0, z1)))
   MARK(sel(from(z0), x1)) -> c8(A__SEL(a__from(mark(z0)), mark(x1)), MARK(x1))
   MARK(sel(sel(z0, z1), x1)) -> c8(A__SEL(a__sel(mark(z0), mark(z1)), mark(x1)), MARK(x1))
   MARK(sel(s(z0), x1)) -> c8(A__SEL(s(mark(z0)), mark(x1)), MARK(x1))
   MARK(sel(0, x1)) -> c8(A__SEL(0, mark(x1)), MARK(x1))
   MARK(sel(x0, s(z0))) -> c8(MARK(s(z0)))
   MARK(sel(cons(z0, z1), x1)) -> c8(MARK(x1))
   A__SEL(s(x0), cons(x1, from(x2))) -> c3(A__SEL(mark(x0), cons(mark(mark(x2)), from(s(mark(x2))))), MARK(x0))
   A__SEL(s(x0), cons(x1, from(from(z0)))) -> c3(A__SEL(mark(x0), a__from(a__from(mark(z0)))), MARK(x0))
   A__SEL(s(x0), cons(x1, from(sel(z0, z1)))) -> c3(A__SEL(mark(x0), a__from(a__sel(mark(z0), mark(z1)))), MARK(x0))
   A__SEL(s(x0), cons(x1, from(cons(z0, z1)))) -> c3(A__SEL(mark(x0), a__from(cons(mark(z0), z1))), MARK(x0))
   A__SEL(s(x0), cons(x1, from(s(z0)))) -> c3(A__SEL(mark(x0), a__from(s(mark(z0)))), MARK(x0))
   A__SEL(s(x0), cons(x1, from(0))) -> c3(A__SEL(mark(x0), a__from(0)), MARK(x0))
   A__SEL(s(from(z0)), cons(x1, from(x2))) -> c3(A__SEL(a__from(mark(z0)), a__from(mark(x2))), MARK(from(z0)))
   A__SEL(s(sel(z0, z1)), cons(x1, from(x2))) -> c3(A__SEL(a__sel(mark(z0), mark(z1)), a__from(mark(x2))), MARK(sel(z0, z1)))
   A__SEL(s(s(z0)), cons(x1, from(x2))) -> c3(A__SEL(s(mark(z0)), a__from(mark(x2))), MARK(s(z0)))
   A__SEL(s(x0), cons(x1, from(x2))) -> c3(MARK(x0))
   A__SEL(s(cons(z0, z1)), cons(x1, from(x2))) -> c3(MARK(cons(z0, z1)))
   A__SEL(s(0), cons(x1, from(x2))) -> c3(A__SEL(0, a__from(mark(x2))))
   A__SEL(s(x0), cons(x1, sel(x2, from(z0)))) -> c3(A__SEL(mark(x0), a__sel(mark(x2), a__from(mark(z0)))), MARK(x0))
   A__SEL(s(x0), cons(x1, sel(x2, sel(z0, z1)))) -> c3(A__SEL(mark(x0), a__sel(mark(x2), a__sel(mark(z0), mark(z1)))), MARK(x0))
   A__SEL(s(x0), cons(x1, sel(x2, cons(z0, z1)))) -> c3(A__SEL(mark(x0), a__sel(mark(x2), cons(mark(z0), z1))), MARK(x0))
   A__SEL(s(x0), cons(x1, sel(x2, s(z0)))) -> c3(A__SEL(mark(x0), a__sel(mark(x2), s(mark(z0)))), MARK(x0))
   A__SEL(s(x0), cons(x1, sel(x2, 0))) -> c3(A__SEL(mark(x0), a__sel(mark(x2), 0)), MARK(x0))
   A__SEL(s(x0), cons(x1, sel(from(z0), x3))) -> c3(A__SEL(mark(x0), a__sel(a__from(mark(z0)), mark(x3))), MARK(x0))
   A__SEL(s(x0), cons(x1, sel(sel(z0, z1), x3))) -> c3(A__SEL(mark(x0), a__sel(a__sel(mark(z0), mark(z1)), mark(x3))), MARK(x0))
   A__SEL(s(x0), cons(x1, sel(cons(z0, z1), x3))) -> c3(A__SEL(mark(x0), a__sel(cons(mark(z0), z1), mark(x3))), MARK(x0))
   A__SEL(s(x0), cons(x1, sel(s(z0), x3))) -> c3(A__SEL(mark(x0), a__sel(s(mark(z0)), mark(x3))), MARK(x0))
   A__SEL(s(x0), cons(x1, sel(0, x3))) -> c3(A__SEL(mark(x0), a__sel(0, mark(x3))), MARK(x0))
   A__SEL(s(from(z0)), cons(x1, sel(x2, x3))) -> c3(A__SEL(a__from(mark(z0)), a__sel(mark(x2), mark(x3))), MARK(from(z0)))
   A__SEL(s(sel(z0, z1)), cons(x1, sel(x2, x3))) -> c3(A__SEL(a__sel(mark(z0), mark(z1)), a__sel(mark(x2), mark(x3))), MARK(sel(z0, z1)))
   A__SEL(s(s(z0)), cons(x1, sel(x2, x3))) -> c3(A__SEL(s(mark(z0)), a__sel(mark(x2), mark(x3))), MARK(s(z0)))
   A__SEL(s(x0), cons(x1, sel(x2, x3))) -> c3(MARK(x0))
   A__SEL(s(cons(z0, z1)), cons(x1, sel(x2, x3))) -> c3(MARK(cons(z0, z1)))
   A__SEL(s(0), cons(x1, sel(x2, x3))) -> c3(A__SEL(0, a__sel(mark(x2), mark(x3))))
   A__SEL(s(x0), cons(x1, cons(from(z0), x3))) -> c3(A__SEL(mark(x0), cons(a__from(mark(z0)), x3)), MARK(x0))
   A__SEL(s(x0), cons(x1, cons(sel(z0, z1), x3))) -> c3(A__SEL(mark(x0), cons(a__sel(mark(z0), mark(z1)), x3)), MARK(x0))
   A__SEL(s(x0), cons(x1, cons(cons(z0, z1), x3))) -> c3(A__SEL(mark(x0), cons(cons(mark(z0), z1), x3)), MARK(x0))
   A__SEL(s(x0), cons(x1, cons(s(z0), x3))) -> c3(A__SEL(mark(x0), cons(s(mark(z0)), x3)), MARK(x0))
   A__SEL(s(x0), cons(x1, cons(0, x3))) -> c3(A__SEL(mark(x0), cons(0, x3)), MARK(x0))
   A__SEL(s(from(z0)), cons(x1, cons(x2, x3))) -> c3(A__SEL(a__from(mark(z0)), cons(mark(x2), x3)), MARK(from(z0)))
   A__SEL(s(sel(z0, z1)), cons(x1, cons(x2, x3))) -> c3(A__SEL(a__sel(mark(z0), mark(z1)), cons(mark(x2), x3)), MARK(sel(z0, z1)))
   A__SEL(s(s(z0)), cons(x1, cons(x2, x3))) -> c3(A__SEL(s(mark(z0)), cons(mark(x2), x3)), MARK(s(z0)))
   A__SEL(s(cons(z0, z1)), cons(x1, cons(x2, x3))) -> c3(MARK(cons(z0, z1)))
   A__SEL(s(0), cons(x1, cons(x2, x3))) -> c3(A__SEL(0, cons(mark(x2), x3)))
   A__SEL(s(from(from(z0))), cons(x1, x2)) -> c3(A__SEL(a__from(a__from(mark(z0))), mark(x2)), MARK(from(from(z0))))
   A__SEL(s(from(sel(z0, z1))), cons(x1, x2)) -> c3(A__SEL(a__from(a__sel(mark(z0), mark(z1))), mark(x2)), MARK(from(sel(z0, z1))))
   A__SEL(s(from(cons(z0, z1))), cons(x1, x2)) -> c3(A__SEL(a__from(cons(mark(z0), z1)), mark(x2)), MARK(from(cons(z0, z1))))
   A__SEL(s(from(s(z0))), cons(x1, x2)) -> c3(A__SEL(a__from(s(mark(z0))), mark(x2)), MARK(from(s(z0))))
   A__SEL(s(from(0)), cons(x1, x2)) -> c3(A__SEL(a__from(0), mark(x2)), MARK(from(0)))
   A__SEL(s(from(x0)), cons(x1, x2)) -> c3(MARK(from(x0)))
   A__SEL(s(from(x0)), cons(x1, s(z0))) -> c3(MARK(from(x0)))
   A__SEL(s(from(x0)), cons(x1, 0)) -> c3(MARK(from(x0)))
   A__SEL(s(sel(x0, from(z0))), cons(x2, x3)) -> c3(A__SEL(a__sel(mark(x0), a__from(mark(z0))), mark(x3)), MARK(sel(x0, from(z0))))
   A__SEL(s(sel(x0, sel(z0, z1))), cons(x2, x3)) -> c3(A__SEL(a__sel(mark(x0), a__sel(mark(z0), mark(z1))), mark(x3)), MARK(sel(x0, sel(z0, z1))))
   A__SEL(s(sel(x0, cons(z0, z1))), cons(x2, x3)) -> c3(A__SEL(a__sel(mark(x0), cons(mark(z0), z1)), mark(x3)), MARK(sel(x0, cons(z0, z1))))
   A__SEL(s(sel(x0, s(z0))), cons(x2, x3)) -> c3(A__SEL(a__sel(mark(x0), s(mark(z0))), mark(x3)), MARK(sel(x0, s(z0))))
   A__SEL(s(sel(x0, 0)), cons(x2, x3)) -> c3(A__SEL(a__sel(mark(x0), 0), mark(x3)), MARK(sel(x0, 0)))
   A__SEL(s(sel(from(z0), x1)), cons(x2, x3)) -> c3(A__SEL(a__sel(a__from(mark(z0)), mark(x1)), mark(x3)), MARK(sel(from(z0), x1)))
   A__SEL(s(sel(sel(z0, z1), x1)), cons(x2, x3)) -> c3(A__SEL(a__sel(a__sel(mark(z0), mark(z1)), mark(x1)), mark(x3)), MARK(sel(sel(z0, z1), x1)))
   A__SEL(s(sel(cons(z0, z1), x1)), cons(x2, x3)) -> c3(A__SEL(a__sel(cons(mark(z0), z1), mark(x1)), mark(x3)), MARK(sel(cons(z0, z1), x1)))
   A__SEL(s(sel(s(z0), x1)), cons(x2, x3)) -> c3(A__SEL(a__sel(s(mark(z0)), mark(x1)), mark(x3)), MARK(sel(s(z0), x1)))
   A__SEL(s(sel(0, x1)), cons(x2, x3)) -> c3(A__SEL(a__sel(0, mark(x1)), mark(x3)), MARK(sel(0, x1)))
   A__SEL(s(sel(x0, x1)), cons(x2, s(z0))) -> c3(MARK(sel(x0, x1)))
   A__SEL(s(sel(x0, x1)), cons(x2, 0)) -> c3(MARK(sel(x0, x1)))
   A__SEL(s(sel(x0, x1)), cons(x2, x3)) -> c3(MARK(sel(x0, x1)))
   A__SEL(s(s(from(z0))), cons(x1, x2)) -> c3(A__SEL(s(a__from(mark(z0))), mark(x2)), MARK(s(from(z0))))
   A__SEL(s(s(sel(z0, z1))), cons(x1, x2)) -> c3(A__SEL(s(a__sel(mark(z0), mark(z1))), mark(x2)), MARK(s(sel(z0, z1))))
   A__SEL(s(s(cons(z0, z1))), cons(x1, x2)) -> c3(A__SEL(s(cons(mark(z0), z1)), mark(x2)), MARK(s(cons(z0, z1))))
   A__SEL(s(s(s(z0))), cons(x1, x2)) -> c3(A__SEL(s(s(mark(z0))), mark(x2)), MARK(s(s(z0))))
   A__SEL(s(s(0)), cons(x1, x2)) -> c3(A__SEL(s(0), mark(x2)), MARK(s(0)))
   A__SEL(s(s(x0)), cons(x1, x2)) -> c3(MARK(s(x0)))
   A__SEL(s(s(x0)), cons(x1, s(z0))) -> c3(MARK(s(x0)))
   A__SEL(s(s(x0)), cons(x1, 0)) -> c3(MARK(s(x0)))
   A__SEL(s(x0), cons(x1, from(x2))) -> c4(A__SEL(mark(x0), cons(mark(mark(x2)), from(s(mark(x2))))), MARK(from(x2)))
   A__SEL(s(x0), cons(x1, from(from(z0)))) -> c4(A__SEL(mark(x0), a__from(a__from(mark(z0)))), MARK(from(from(z0))))
   A__SEL(s(x0), cons(x1, from(sel(z0, z1)))) -> c4(A__SEL(mark(x0), a__from(a__sel(mark(z0), mark(z1)))), MARK(from(sel(z0, z1))))
   A__SEL(s(x0), cons(x1, from(cons(z0, z1)))) -> c4(A__SEL(mark(x0), a__from(cons(mark(z0), z1))), MARK(from(cons(z0, z1))))
   A__SEL(s(x0), cons(x1, from(s(z0)))) -> c4(A__SEL(mark(x0), a__from(s(mark(z0)))), MARK(from(s(z0))))
   A__SEL(s(x0), cons(x1, from(0))) -> c4(A__SEL(mark(x0), a__from(0)), MARK(from(0)))
   A__SEL(s(from(z0)), cons(x1, from(x2))) -> c4(A__SEL(a__from(mark(z0)), a__from(mark(x2))), MARK(from(x2)))
   A__SEL(s(sel(z0, z1)), cons(x1, from(x2))) -> c4(A__SEL(a__sel(mark(z0), mark(z1)), a__from(mark(x2))), MARK(from(x2)))
   A__SEL(s(s(z0)), cons(x1, from(x2))) -> c4(A__SEL(s(mark(z0)), a__from(mark(x2))), MARK(from(x2)))
   A__SEL(s(0), cons(x1, from(x2))) -> c4(A__SEL(0, a__from(mark(x2))), MARK(from(x2)))
   A__SEL(s(x0), cons(x1, from(x2))) -> c4(MARK(from(x2)))
   A__SEL(s(cons(z0, z1)), cons(x1, from(x2))) -> c4(MARK(from(x2)))
   A__SEL(s(x0), cons(x1, sel(x2, from(z0)))) -> c4(A__SEL(mark(x0), a__sel(mark(x2), a__from(mark(z0)))), MARK(sel(x2, from(z0))))
   A__SEL(s(x0), cons(x1, sel(x2, sel(z0, z1)))) -> c4(A__SEL(mark(x0), a__sel(mark(x2), a__sel(mark(z0), mark(z1)))), MARK(sel(x2, sel(z0, z1))))
   A__SEL(s(x0), cons(x1, sel(x2, cons(z0, z1)))) -> c4(A__SEL(mark(x0), a__sel(mark(x2), cons(mark(z0), z1))), MARK(sel(x2, cons(z0, z1))))
   A__SEL(s(x0), cons(x1, sel(x2, s(z0)))) -> c4(A__SEL(mark(x0), a__sel(mark(x2), s(mark(z0)))), MARK(sel(x2, s(z0))))
   A__SEL(s(x0), cons(x1, sel(x2, 0))) -> c4(A__SEL(mark(x0), a__sel(mark(x2), 0)), MARK(sel(x2, 0)))
   A__SEL(s(x0), cons(x1, sel(from(z0), x3))) -> c4(A__SEL(mark(x0), a__sel(a__from(mark(z0)), mark(x3))), MARK(sel(from(z0), x3)))
   A__SEL(s(x0), cons(x1, sel(sel(z0, z1), x3))) -> c4(A__SEL(mark(x0), a__sel(a__sel(mark(z0), mark(z1)), mark(x3))), MARK(sel(sel(z0, z1), x3)))
   A__SEL(s(x0), cons(x1, sel(cons(z0, z1), x3))) -> c4(A__SEL(mark(x0), a__sel(cons(mark(z0), z1), mark(x3))), MARK(sel(cons(z0, z1), x3)))
   A__SEL(s(x0), cons(x1, sel(s(z0), x3))) -> c4(A__SEL(mark(x0), a__sel(s(mark(z0)), mark(x3))), MARK(sel(s(z0), x3)))
   A__SEL(s(x0), cons(x1, sel(0, x3))) -> c4(A__SEL(mark(x0), a__sel(0, mark(x3))), MARK(sel(0, x3)))
   A__SEL(s(from(z0)), cons(x1, sel(x2, x3))) -> c4(A__SEL(a__from(mark(z0)), a__sel(mark(x2), mark(x3))), MARK(sel(x2, x3)))
   A__SEL(s(sel(z0, z1)), cons(x1, sel(x2, x3))) -> c4(A__SEL(a__sel(mark(z0), mark(z1)), a__sel(mark(x2), mark(x3))), MARK(sel(x2, x3)))
   A__SEL(s(s(z0)), cons(x1, sel(x2, x3))) -> c4(A__SEL(s(mark(z0)), a__sel(mark(x2), mark(x3))), MARK(sel(x2, x3)))
   A__SEL(s(0), cons(x1, sel(x2, x3))) -> c4(A__SEL(0, a__sel(mark(x2), mark(x3))), MARK(sel(x2, x3)))
   A__SEL(s(x0), cons(x1, sel(x2, x3))) -> c4(MARK(sel(x2, x3)))
   A__SEL(s(cons(z0, z1)), cons(x1, sel(x2, x3))) -> c4(MARK(sel(x2, x3)))
   A__SEL(s(x0), cons(x1, cons(from(z0), x3))) -> c4(A__SEL(mark(x0), cons(a__from(mark(z0)), x3)), MARK(cons(from(z0), x3)))
   A__SEL(s(x0), cons(x1, cons(sel(z0, z1), x3))) -> c4(A__SEL(mark(x0), cons(a__sel(mark(z0), mark(z1)), x3)), MARK(cons(sel(z0, z1), x3)))
   A__SEL(s(x0), cons(x1, cons(cons(z0, z1), x3))) -> c4(A__SEL(mark(x0), cons(cons(mark(z0), z1), x3)), MARK(cons(cons(z0, z1), x3)))
   A__SEL(s(x0), cons(x1, cons(s(z0), x3))) -> c4(A__SEL(mark(x0), cons(s(mark(z0)), x3)), MARK(cons(s(z0), x3)))
   A__SEL(s(x0), cons(x1, cons(0, x3))) -> c4(A__SEL(mark(x0), cons(0, x3)), MARK(cons(0, x3)))
   A__SEL(s(from(z0)), cons(x1, cons(x2, x3))) -> c4(A__SEL(a__from(mark(z0)), cons(mark(x2), x3)), MARK(cons(x2, x3)))
   A__SEL(s(sel(z0, z1)), cons(x1, cons(x2, x3))) -> c4(A__SEL(a__sel(mark(z0), mark(z1)), cons(mark(x2), x3)), MARK(cons(x2, x3)))
   A__SEL(s(s(z0)), cons(x1, cons(x2, x3))) -> c4(A__SEL(s(mark(z0)), cons(mark(x2), x3)), MARK(cons(x2, x3)))
   A__SEL(s(0), cons(x1, cons(x2, x3))) -> c4(A__SEL(0, cons(mark(x2), x3)), MARK(cons(x2, x3)))
   A__SEL(s(x0), cons(x1, cons(x2, x3))) -> c4(MARK(cons(x2, x3)))
   A__SEL(s(cons(z0, z1)), cons(x1, cons(x2, x3))) -> c4(MARK(cons(x2, x3)))
   A__SEL(s(from(from(z0))), cons(x1, x2)) -> c4(A__SEL(a__from(a__from(mark(z0))), mark(x2)), MARK(x2))
   A__SEL(s(from(sel(z0, z1))), cons(x1, x2)) -> c4(A__SEL(a__from(a__sel(mark(z0), mark(z1))), mark(x2)), MARK(x2))
   A__SEL(s(from(cons(z0, z1))), cons(x1, x2)) -> c4(A__SEL(a__from(cons(mark(z0), z1)), mark(x2)), MARK(x2))
   A__SEL(s(from(s(z0))), cons(x1, x2)) -> c4(A__SEL(a__from(s(mark(z0))), mark(x2)), MARK(x2))
   A__SEL(s(from(0)), cons(x1, x2)) -> c4(A__SEL(a__from(0), mark(x2)), MARK(x2))
   A__SEL(s(from(x0)), cons(x1, s(z0))) -> c4(MARK(s(z0)))
   A__SEL(s(from(x0)), cons(x1, x2)) -> c4(MARK(x2))
   A__SEL(s(sel(x0, from(z0))), cons(x2, x3)) -> c4(A__SEL(a__sel(mark(x0), a__from(mark(z0))), mark(x3)), MARK(x3))
   A__SEL(s(sel(x0, sel(z0, z1))), cons(x2, x3)) -> c4(A__SEL(a__sel(mark(x0), a__sel(mark(z0), mark(z1))), mark(x3)), MARK(x3))
   A__SEL(s(sel(x0, cons(z0, z1))), cons(x2, x3)) -> c4(A__SEL(a__sel(mark(x0), cons(mark(z0), z1)), mark(x3)), MARK(x3))
   A__SEL(s(sel(x0, s(z0))), cons(x2, x3)) -> c4(A__SEL(a__sel(mark(x0), s(mark(z0))), mark(x3)), MARK(x3))
   A__SEL(s(sel(x0, 0)), cons(x2, x3)) -> c4(A__SEL(a__sel(mark(x0), 0), mark(x3)), MARK(x3))
   A__SEL(s(sel(from(z0), x1)), cons(x2, x3)) -> c4(A__SEL(a__sel(a__from(mark(z0)), mark(x1)), mark(x3)), MARK(x3))
   A__SEL(s(sel(sel(z0, z1), x1)), cons(x2, x3)) -> c4(A__SEL(a__sel(a__sel(mark(z0), mark(z1)), mark(x1)), mark(x3)), MARK(x3))
   A__SEL(s(sel(cons(z0, z1), x1)), cons(x2, x3)) -> c4(A__SEL(a__sel(cons(mark(z0), z1), mark(x1)), mark(x3)), MARK(x3))
   A__SEL(s(sel(s(z0), x1)), cons(x2, x3)) -> c4(A__SEL(a__sel(s(mark(z0)), mark(x1)), mark(x3)), MARK(x3))
   A__SEL(s(sel(0, x1)), cons(x2, x3)) -> c4(A__SEL(a__sel(0, mark(x1)), mark(x3)), MARK(x3))
   A__SEL(s(sel(x0, x1)), cons(x2, s(z0))) -> c4(MARK(s(z0)))
   A__SEL(s(sel(x0, x1)), cons(x2, x3)) -> c4(MARK(x3))
   A__SEL(s(s(from(z0))), cons(x1, x2)) -> c4(A__SEL(s(a__from(mark(z0))), mark(x2)), MARK(x2))
   A__SEL(s(s(sel(z0, z1))), cons(x1, x2)) -> c4(A__SEL(s(a__sel(mark(z0), mark(z1))), mark(x2)), MARK(x2))
   A__SEL(s(s(cons(z0, z1))), cons(x1, x2)) -> c4(A__SEL(s(cons(mark(z0), z1)), mark(x2)), MARK(x2))
   A__SEL(s(s(s(z0))), cons(x1, x2)) -> c4(A__SEL(s(s(mark(z0))), mark(x2)), MARK(x2))
   A__SEL(s(s(0)), cons(x1, x2)) -> c4(A__SEL(s(0), mark(x2)), MARK(x2))
   A__SEL(s(s(x0)), cons(x1, s(z0))) -> c4(MARK(s(z0)))
   A__SEL(s(0), cons(x0, s(z0))) -> c4(A__SEL(0, s(mark(z0))), MARK(s(z0)))
   A__SEL(s(0), cons(x0, 0)) -> c4(A__SEL(0, 0), MARK(0))
K tuples:none
Defined Rule Symbols:   a__from_1, a__sel_2, mark_1

Defined Pair Symbols:   A__FROM_1, A__SEL_2, MARK_1

Compound Symbols:   c_1, c2_1, c6_2, c9_1, c10_1, c3_1, c4_1, c7_2, c7_1, c8_2, c8_1, c3_2, c4_2


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

(137) CdtLeafRemovalProof (BOTH BOUNDS(ID, ID))
Removed 1 trailing nodes:
   A__SEL(s(0), cons(x0, 0)) -> c4(A__SEL(0, 0), MARK(0))

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

(138)
Obligation:
Complexity Dependency Tuples Problem

Rules:
   a__from(z0) -> cons(mark(z0), from(s(z0)))
   a__from(z0) -> from(z0)
   a__sel(0, cons(z0, z1)) -> mark(z0)
   a__sel(s(z0), cons(z1, z2)) -> a__sel(mark(z0), mark(z2))
   a__sel(z0, z1) -> sel(z0, z1)
   mark(from(z0)) -> a__from(mark(z0))
   mark(sel(z0, z1)) -> a__sel(mark(z0), mark(z1))
   mark(cons(z0, z1)) -> cons(mark(z0), z1)
   mark(s(z0)) -> s(mark(z0))
   mark(0) -> 0
Tuples:
   A__FROM(z0) -> c(MARK(z0))
   A__SEL(0, cons(z0, z1)) -> c2(MARK(z0))
   MARK(from(z0)) -> c6(A__FROM(mark(z0)), MARK(z0))
   MARK(cons(z0, z1)) -> c9(MARK(z0))
   MARK(s(z0)) -> c10(MARK(z0))
   A__SEL(s(x0), cons(x1, s(z0))) -> c3(MARK(x0))
   A__SEL(s(x0), cons(x1, 0)) -> c3(MARK(x0))
   A__SEL(s(cons(z0, z1)), cons(x1, x2)) -> c3(MARK(cons(z0, z1)))
   A__SEL(s(x0), cons(x1, s(z0))) -> c4(MARK(s(z0)))
   A__SEL(s(cons(z0, z1)), cons(x1, x2)) -> c4(MARK(x2))
   MARK(sel(x0, from(z0))) -> c7(A__SEL(mark(x0), a__from(mark(z0))), MARK(x0))
   MARK(sel(x0, sel(z0, z1))) -> c7(A__SEL(mark(x0), a__sel(mark(z0), mark(z1))), MARK(x0))
   MARK(sel(x0, cons(z0, z1))) -> c7(A__SEL(mark(x0), cons(mark(z0), z1)), MARK(x0))
   MARK(sel(from(z0), x1)) -> c7(A__SEL(a__from(mark(z0)), mark(x1)), MARK(from(z0)))
   MARK(sel(sel(z0, z1), x1)) -> c7(A__SEL(a__sel(mark(z0), mark(z1)), mark(x1)), MARK(sel(z0, z1)))
   MARK(sel(s(z0), x1)) -> c7(A__SEL(s(mark(z0)), mark(x1)), MARK(s(z0)))
   MARK(sel(x0, s(z0))) -> c7(MARK(x0))
   MARK(sel(x0, 0)) -> c7(MARK(x0))
   MARK(sel(cons(z0, z1), x1)) -> c7(MARK(cons(z0, z1)))
   MARK(sel(0, x1)) -> c7(A__SEL(0, mark(x1)))
   MARK(sel(x0, from(z0))) -> c8(A__SEL(mark(x0), a__from(mark(z0))), MARK(from(z0)))
   MARK(sel(x0, sel(z0, z1))) -> c8(A__SEL(mark(x0), a__sel(mark(z0), mark(z1))), MARK(sel(z0, z1)))
   MARK(sel(x0, cons(z0, z1))) -> c8(A__SEL(mark(x0), cons(mark(z0), z1)), MARK(cons(z0, z1)))
   MARK(sel(from(z0), x1)) -> c8(A__SEL(a__from(mark(z0)), mark(x1)), MARK(x1))
   MARK(sel(sel(z0, z1), x1)) -> c8(A__SEL(a__sel(mark(z0), mark(z1)), mark(x1)), MARK(x1))
   MARK(sel(s(z0), x1)) -> c8(A__SEL(s(mark(z0)), mark(x1)), MARK(x1))
   MARK(sel(0, x1)) -> c8(A__SEL(0, mark(x1)), MARK(x1))
   MARK(sel(x0, s(z0))) -> c8(MARK(s(z0)))
   MARK(sel(cons(z0, z1), x1)) -> c8(MARK(x1))
   A__SEL(s(x0), cons(x1, from(x2))) -> c3(A__SEL(mark(x0), cons(mark(mark(x2)), from(s(mark(x2))))), MARK(x0))
   A__SEL(s(x0), cons(x1, from(from(z0)))) -> c3(A__SEL(mark(x0), a__from(a__from(mark(z0)))), MARK(x0))
   A__SEL(s(x0), cons(x1, from(sel(z0, z1)))) -> c3(A__SEL(mark(x0), a__from(a__sel(mark(z0), mark(z1)))), MARK(x0))
   A__SEL(s(x0), cons(x1, from(cons(z0, z1)))) -> c3(A__SEL(mark(x0), a__from(cons(mark(z0), z1))), MARK(x0))
   A__SEL(s(x0), cons(x1, from(s(z0)))) -> c3(A__SEL(mark(x0), a__from(s(mark(z0)))), MARK(x0))
   A__SEL(s(x0), cons(x1, from(0))) -> c3(A__SEL(mark(x0), a__from(0)), MARK(x0))
   A__SEL(s(from(z0)), cons(x1, from(x2))) -> c3(A__SEL(a__from(mark(z0)), a__from(mark(x2))), MARK(from(z0)))
   A__SEL(s(sel(z0, z1)), cons(x1, from(x2))) -> c3(A__SEL(a__sel(mark(z0), mark(z1)), a__from(mark(x2))), MARK(sel(z0, z1)))
   A__SEL(s(s(z0)), cons(x1, from(x2))) -> c3(A__SEL(s(mark(z0)), a__from(mark(x2))), MARK(s(z0)))
   A__SEL(s(x0), cons(x1, from(x2))) -> c3(MARK(x0))
   A__SEL(s(cons(z0, z1)), cons(x1, from(x2))) -> c3(MARK(cons(z0, z1)))
   A__SEL(s(0), cons(x1, from(x2))) -> c3(A__SEL(0, a__from(mark(x2))))
   A__SEL(s(x0), cons(x1, sel(x2, from(z0)))) -> c3(A__SEL(mark(x0), a__sel(mark(x2), a__from(mark(z0)))), MARK(x0))
   A__SEL(s(x0), cons(x1, sel(x2, sel(z0, z1)))) -> c3(A__SEL(mark(x0), a__sel(mark(x2), a__sel(mark(z0), mark(z1)))), MARK(x0))
   A__SEL(s(x0), cons(x1, sel(x2, cons(z0, z1)))) -> c3(A__SEL(mark(x0), a__sel(mark(x2), cons(mark(z0), z1))), MARK(x0))
   A__SEL(s(x0), cons(x1, sel(x2, s(z0)))) -> c3(A__SEL(mark(x0), a__sel(mark(x2), s(mark(z0)))), MARK(x0))
   A__SEL(s(x0), cons(x1, sel(x2, 0))) -> c3(A__SEL(mark(x0), a__sel(mark(x2), 0)), MARK(x0))
   A__SEL(s(x0), cons(x1, sel(from(z0), x3))) -> c3(A__SEL(mark(x0), a__sel(a__from(mark(z0)), mark(x3))), MARK(x0))
   A__SEL(s(x0), cons(x1, sel(sel(z0, z1), x3))) -> c3(A__SEL(mark(x0), a__sel(a__sel(mark(z0), mark(z1)), mark(x3))), MARK(x0))
   A__SEL(s(x0), cons(x1, sel(cons(z0, z1), x3))) -> c3(A__SEL(mark(x0), a__sel(cons(mark(z0), z1), mark(x3))), MARK(x0))
   A__SEL(s(x0), cons(x1, sel(s(z0), x3))) -> c3(A__SEL(mark(x0), a__sel(s(mark(z0)), mark(x3))), MARK(x0))
   A__SEL(s(x0), cons(x1, sel(0, x3))) -> c3(A__SEL(mark(x0), a__sel(0, mark(x3))), MARK(x0))
   A__SEL(s(from(z0)), cons(x1, sel(x2, x3))) -> c3(A__SEL(a__from(mark(z0)), a__sel(mark(x2), mark(x3))), MARK(from(z0)))
   A__SEL(s(sel(z0, z1)), cons(x1, sel(x2, x3))) -> c3(A__SEL(a__sel(mark(z0), mark(z1)), a__sel(mark(x2), mark(x3))), MARK(sel(z0, z1)))
   A__SEL(s(s(z0)), cons(x1, sel(x2, x3))) -> c3(A__SEL(s(mark(z0)), a__sel(mark(x2), mark(x3))), MARK(s(z0)))
   A__SEL(s(x0), cons(x1, sel(x2, x3))) -> c3(MARK(x0))
   A__SEL(s(cons(z0, z1)), cons(x1, sel(x2, x3))) -> c3(MARK(cons(z0, z1)))
   A__SEL(s(0), cons(x1, sel(x2, x3))) -> c3(A__SEL(0, a__sel(mark(x2), mark(x3))))
   A__SEL(s(x0), cons(x1, cons(from(z0), x3))) -> c3(A__SEL(mark(x0), cons(a__from(mark(z0)), x3)), MARK(x0))
   A__SEL(s(x0), cons(x1, cons(sel(z0, z1), x3))) -> c3(A__SEL(mark(x0), cons(a__sel(mark(z0), mark(z1)), x3)), MARK(x0))
   A__SEL(s(x0), cons(x1, cons(cons(z0, z1), x3))) -> c3(A__SEL(mark(x0), cons(cons(mark(z0), z1), x3)), MARK(x0))
   A__SEL(s(x0), cons(x1, cons(s(z0), x3))) -> c3(A__SEL(mark(x0), cons(s(mark(z0)), x3)), MARK(x0))
   A__SEL(s(x0), cons(x1, cons(0, x3))) -> c3(A__SEL(mark(x0), cons(0, x3)), MARK(x0))
   A__SEL(s(from(z0)), cons(x1, cons(x2, x3))) -> c3(A__SEL(a__from(mark(z0)), cons(mark(x2), x3)), MARK(from(z0)))
   A__SEL(s(sel(z0, z1)), cons(x1, cons(x2, x3))) -> c3(A__SEL(a__sel(mark(z0), mark(z1)), cons(mark(x2), x3)), MARK(sel(z0, z1)))
   A__SEL(s(s(z0)), cons(x1, cons(x2, x3))) -> c3(A__SEL(s(mark(z0)), cons(mark(x2), x3)), MARK(s(z0)))
   A__SEL(s(cons(z0, z1)), cons(x1, cons(x2, x3))) -> c3(MARK(cons(z0, z1)))
   A__SEL(s(0), cons(x1, cons(x2, x3))) -> c3(A__SEL(0, cons(mark(x2), x3)))
   A__SEL(s(from(from(z0))), cons(x1, x2)) -> c3(A__SEL(a__from(a__from(mark(z0))), mark(x2)), MARK(from(from(z0))))
   A__SEL(s(from(sel(z0, z1))), cons(x1, x2)) -> c3(A__SEL(a__from(a__sel(mark(z0), mark(z1))), mark(x2)), MARK(from(sel(z0, z1))))
   A__SEL(s(from(cons(z0, z1))), cons(x1, x2)) -> c3(A__SEL(a__from(cons(mark(z0), z1)), mark(x2)), MARK(from(cons(z0, z1))))
   A__SEL(s(from(s(z0))), cons(x1, x2)) -> c3(A__SEL(a__from(s(mark(z0))), mark(x2)), MARK(from(s(z0))))
   A__SEL(s(from(0)), cons(x1, x2)) -> c3(A__SEL(a__from(0), mark(x2)), MARK(from(0)))
   A__SEL(s(from(x0)), cons(x1, x2)) -> c3(MARK(from(x0)))
   A__SEL(s(from(x0)), cons(x1, s(z0))) -> c3(MARK(from(x0)))
   A__SEL(s(from(x0)), cons(x1, 0)) -> c3(MARK(from(x0)))
   A__SEL(s(sel(x0, from(z0))), cons(x2, x3)) -> c3(A__SEL(a__sel(mark(x0), a__from(mark(z0))), mark(x3)), MARK(sel(x0, from(z0))))
   A__SEL(s(sel(x0, sel(z0, z1))), cons(x2, x3)) -> c3(A__SEL(a__sel(mark(x0), a__sel(mark(z0), mark(z1))), mark(x3)), MARK(sel(x0, sel(z0, z1))))
   A__SEL(s(sel(x0, cons(z0, z1))), cons(x2, x3)) -> c3(A__SEL(a__sel(mark(x0), cons(mark(z0), z1)), mark(x3)), MARK(sel(x0, cons(z0, z1))))
   A__SEL(s(sel(x0, s(z0))), cons(x2, x3)) -> c3(A__SEL(a__sel(mark(x0), s(mark(z0))), mark(x3)), MARK(sel(x0, s(z0))))
   A__SEL(s(sel(x0, 0)), cons(x2, x3)) -> c3(A__SEL(a__sel(mark(x0), 0), mark(x3)), MARK(sel(x0, 0)))
   A__SEL(s(sel(from(z0), x1)), cons(x2, x3)) -> c3(A__SEL(a__sel(a__from(mark(z0)), mark(x1)), mark(x3)), MARK(sel(from(z0), x1)))
   A__SEL(s(sel(sel(z0, z1), x1)), cons(x2, x3)) -> c3(A__SEL(a__sel(a__sel(mark(z0), mark(z1)), mark(x1)), mark(x3)), MARK(sel(sel(z0, z1), x1)))
   A__SEL(s(sel(cons(z0, z1), x1)), cons(x2, x3)) -> c3(A__SEL(a__sel(cons(mark(z0), z1), mark(x1)), mark(x3)), MARK(sel(cons(z0, z1), x1)))
   A__SEL(s(sel(s(z0), x1)), cons(x2, x3)) -> c3(A__SEL(a__sel(s(mark(z0)), mark(x1)), mark(x3)), MARK(sel(s(z0), x1)))
   A__SEL(s(sel(0, x1)), cons(x2, x3)) -> c3(A__SEL(a__sel(0, mark(x1)), mark(x3)), MARK(sel(0, x1)))
   A__SEL(s(sel(x0, x1)), cons(x2, s(z0))) -> c3(MARK(sel(x0, x1)))
   A__SEL(s(sel(x0, x1)), cons(x2, 0)) -> c3(MARK(sel(x0, x1)))
   A__SEL(s(sel(x0, x1)), cons(x2, x3)) -> c3(MARK(sel(x0, x1)))
   A__SEL(s(s(from(z0))), cons(x1, x2)) -> c3(A__SEL(s(a__from(mark(z0))), mark(x2)), MARK(s(from(z0))))
   A__SEL(s(s(sel(z0, z1))), cons(x1, x2)) -> c3(A__SEL(s(a__sel(mark(z0), mark(z1))), mark(x2)), MARK(s(sel(z0, z1))))
   A__SEL(s(s(cons(z0, z1))), cons(x1, x2)) -> c3(A__SEL(s(cons(mark(z0), z1)), mark(x2)), MARK(s(cons(z0, z1))))
   A__SEL(s(s(s(z0))), cons(x1, x2)) -> c3(A__SEL(s(s(mark(z0))), mark(x2)), MARK(s(s(z0))))
   A__SEL(s(s(0)), cons(x1, x2)) -> c3(A__SEL(s(0), mark(x2)), MARK(s(0)))
   A__SEL(s(s(x0)), cons(x1, x2)) -> c3(MARK(s(x0)))
   A__SEL(s(s(x0)), cons(x1, s(z0))) -> c3(MARK(s(x0)))
   A__SEL(s(s(x0)), cons(x1, 0)) -> c3(MARK(s(x0)))
   A__SEL(s(x0), cons(x1, from(x2))) -> c4(A__SEL(mark(x0), cons(mark(mark(x2)), from(s(mark(x2))))), MARK(from(x2)))
   A__SEL(s(x0), cons(x1, from(from(z0)))) -> c4(A__SEL(mark(x0), a__from(a__from(mark(z0)))), MARK(from(from(z0))))
   A__SEL(s(x0), cons(x1, from(sel(z0, z1)))) -> c4(A__SEL(mark(x0), a__from(a__sel(mark(z0), mark(z1)))), MARK(from(sel(z0, z1))))
   A__SEL(s(x0), cons(x1, from(cons(z0, z1)))) -> c4(A__SEL(mark(x0), a__from(cons(mark(z0), z1))), MARK(from(cons(z0, z1))))
   A__SEL(s(x0), cons(x1, from(s(z0)))) -> c4(A__SEL(mark(x0), a__from(s(mark(z0)))), MARK(from(s(z0))))
   A__SEL(s(x0), cons(x1, from(0))) -> c4(A__SEL(mark(x0), a__from(0)), MARK(from(0)))
   A__SEL(s(from(z0)), cons(x1, from(x2))) -> c4(A__SEL(a__from(mark(z0)), a__from(mark(x2))), MARK(from(x2)))
   A__SEL(s(sel(z0, z1)), cons(x1, from(x2))) -> c4(A__SEL(a__sel(mark(z0), mark(z1)), a__from(mark(x2))), MARK(from(x2)))
   A__SEL(s(s(z0)), cons(x1, from(x2))) -> c4(A__SEL(s(mark(z0)), a__from(mark(x2))), MARK(from(x2)))
   A__SEL(s(0), cons(x1, from(x2))) -> c4(A__SEL(0, a__from(mark(x2))), MARK(from(x2)))
   A__SEL(s(x0), cons(x1, from(x2))) -> c4(MARK(from(x2)))
   A__SEL(s(cons(z0, z1)), cons(x1, from(x2))) -> c4(MARK(from(x2)))
   A__SEL(s(x0), cons(x1, sel(x2, from(z0)))) -> c4(A__SEL(mark(x0), a__sel(mark(x2), a__from(mark(z0)))), MARK(sel(x2, from(z0))))
   A__SEL(s(x0), cons(x1, sel(x2, sel(z0, z1)))) -> c4(A__SEL(mark(x0), a__sel(mark(x2), a__sel(mark(z0), mark(z1)))), MARK(sel(x2, sel(z0, z1))))
   A__SEL(s(x0), cons(x1, sel(x2, cons(z0, z1)))) -> c4(A__SEL(mark(x0), a__sel(mark(x2), cons(mark(z0), z1))), MARK(sel(x2, cons(z0, z1))))
   A__SEL(s(x0), cons(x1, sel(x2, s(z0)))) -> c4(A__SEL(mark(x0), a__sel(mark(x2), s(mark(z0)))), MARK(sel(x2, s(z0))))
   A__SEL(s(x0), cons(x1, sel(x2, 0))) -> c4(A__SEL(mark(x0), a__sel(mark(x2), 0)), MARK(sel(x2, 0)))
   A__SEL(s(x0), cons(x1, sel(from(z0), x3))) -> c4(A__SEL(mark(x0), a__sel(a__from(mark(z0)), mark(x3))), MARK(sel(from(z0), x3)))
   A__SEL(s(x0), cons(x1, sel(sel(z0, z1), x3))) -> c4(A__SEL(mark(x0), a__sel(a__sel(mark(z0), mark(z1)), mark(x3))), MARK(sel(sel(z0, z1), x3)))
   A__SEL(s(x0), cons(x1, sel(cons(z0, z1), x3))) -> c4(A__SEL(mark(x0), a__sel(cons(mark(z0), z1), mark(x3))), MARK(sel(cons(z0, z1), x3)))
   A__SEL(s(x0), cons(x1, sel(s(z0), x3))) -> c4(A__SEL(mark(x0), a__sel(s(mark(z0)), mark(x3))), MARK(sel(s(z0), x3)))
   A__SEL(s(x0), cons(x1, sel(0, x3))) -> c4(A__SEL(mark(x0), a__sel(0, mark(x3))), MARK(sel(0, x3)))
   A__SEL(s(from(z0)), cons(x1, sel(x2, x3))) -> c4(A__SEL(a__from(mark(z0)), a__sel(mark(x2), mark(x3))), MARK(sel(x2, x3)))
   A__SEL(s(sel(z0, z1)), cons(x1, sel(x2, x3))) -> c4(A__SEL(a__sel(mark(z0), mark(z1)), a__sel(mark(x2), mark(x3))), MARK(sel(x2, x3)))
   A__SEL(s(s(z0)), cons(x1, sel(x2, x3))) -> c4(A__SEL(s(mark(z0)), a__sel(mark(x2), mark(x3))), MARK(sel(x2, x3)))
   A__SEL(s(0), cons(x1, sel(x2, x3))) -> c4(A__SEL(0, a__sel(mark(x2), mark(x3))), MARK(sel(x2, x3)))
   A__SEL(s(x0), cons(x1, sel(x2, x3))) -> c4(MARK(sel(x2, x3)))
   A__SEL(s(cons(z0, z1)), cons(x1, sel(x2, x3))) -> c4(MARK(sel(x2, x3)))
   A__SEL(s(x0), cons(x1, cons(from(z0), x3))) -> c4(A__SEL(mark(x0), cons(a__from(mark(z0)), x3)), MARK(cons(from(z0), x3)))
   A__SEL(s(x0), cons(x1, cons(sel(z0, z1), x3))) -> c4(A__SEL(mark(x0), cons(a__sel(mark(z0), mark(z1)), x3)), MARK(cons(sel(z0, z1), x3)))
   A__SEL(s(x0), cons(x1, cons(cons(z0, z1), x3))) -> c4(A__SEL(mark(x0), cons(cons(mark(z0), z1), x3)), MARK(cons(cons(z0, z1), x3)))
   A__SEL(s(x0), cons(x1, cons(s(z0), x3))) -> c4(A__SEL(mark(x0), cons(s(mark(z0)), x3)), MARK(cons(s(z0), x3)))
   A__SEL(s(x0), cons(x1, cons(0, x3))) -> c4(A__SEL(mark(x0), cons(0, x3)), MARK(cons(0, x3)))
   A__SEL(s(from(z0)), cons(x1, cons(x2, x3))) -> c4(A__SEL(a__from(mark(z0)), cons(mark(x2), x3)), MARK(cons(x2, x3)))
   A__SEL(s(sel(z0, z1)), cons(x1, cons(x2, x3))) -> c4(A__SEL(a__sel(mark(z0), mark(z1)), cons(mark(x2), x3)), MARK(cons(x2, x3)))
   A__SEL(s(s(z0)), cons(x1, cons(x2, x3))) -> c4(A__SEL(s(mark(z0)), cons(mark(x2), x3)), MARK(cons(x2, x3)))
   A__SEL(s(0), cons(x1, cons(x2, x3))) -> c4(A__SEL(0, cons(mark(x2), x3)), MARK(cons(x2, x3)))
   A__SEL(s(x0), cons(x1, cons(x2, x3))) -> c4(MARK(cons(x2, x3)))
   A__SEL(s(cons(z0, z1)), cons(x1, cons(x2, x3))) -> c4(MARK(cons(x2, x3)))
   A__SEL(s(from(from(z0))), cons(x1, x2)) -> c4(A__SEL(a__from(a__from(mark(z0))), mark(x2)), MARK(x2))
   A__SEL(s(from(sel(z0, z1))), cons(x1, x2)) -> c4(A__SEL(a__from(a__sel(mark(z0), mark(z1))), mark(x2)), MARK(x2))
   A__SEL(s(from(cons(z0, z1))), cons(x1, x2)) -> c4(A__SEL(a__from(cons(mark(z0), z1)), mark(x2)), MARK(x2))
   A__SEL(s(from(s(z0))), cons(x1, x2)) -> c4(A__SEL(a__from(s(mark(z0))), mark(x2)), MARK(x2))
   A__SEL(s(from(0)), cons(x1, x2)) -> c4(A__SEL(a__from(0), mark(x2)), MARK(x2))
   A__SEL(s(from(x0)), cons(x1, s(z0))) -> c4(MARK(s(z0)))
   A__SEL(s(from(x0)), cons(x1, x2)) -> c4(MARK(x2))
   A__SEL(s(sel(x0, from(z0))), cons(x2, x3)) -> c4(A__SEL(a__sel(mark(x0), a__from(mark(z0))), mark(x3)), MARK(x3))
   A__SEL(s(sel(x0, sel(z0, z1))), cons(x2, x3)) -> c4(A__SEL(a__sel(mark(x0), a__sel(mark(z0), mark(z1))), mark(x3)), MARK(x3))
   A__SEL(s(sel(x0, cons(z0, z1))), cons(x2, x3)) -> c4(A__SEL(a__sel(mark(x0), cons(mark(z0), z1)), mark(x3)), MARK(x3))
   A__SEL(s(sel(x0, s(z0))), cons(x2, x3)) -> c4(A__SEL(a__sel(mark(x0), s(mark(z0))), mark(x3)), MARK(x3))
   A__SEL(s(sel(x0, 0)), cons(x2, x3)) -> c4(A__SEL(a__sel(mark(x0), 0), mark(x3)), MARK(x3))
   A__SEL(s(sel(from(z0), x1)), cons(x2, x3)) -> c4(A__SEL(a__sel(a__from(mark(z0)), mark(x1)), mark(x3)), MARK(x3))
   A__SEL(s(sel(sel(z0, z1), x1)), cons(x2, x3)) -> c4(A__SEL(a__sel(a__sel(mark(z0), mark(z1)), mark(x1)), mark(x3)), MARK(x3))
   A__SEL(s(sel(cons(z0, z1), x1)), cons(x2, x3)) -> c4(A__SEL(a__sel(cons(mark(z0), z1), mark(x1)), mark(x3)), MARK(x3))
   A__SEL(s(sel(s(z0), x1)), cons(x2, x3)) -> c4(A__SEL(a__sel(s(mark(z0)), mark(x1)), mark(x3)), MARK(x3))
   A__SEL(s(sel(0, x1)), cons(x2, x3)) -> c4(A__SEL(a__sel(0, mark(x1)), mark(x3)), MARK(x3))
   A__SEL(s(sel(x0, x1)), cons(x2, s(z0))) -> c4(MARK(s(z0)))
   A__SEL(s(sel(x0, x1)), cons(x2, x3)) -> c4(MARK(x3))
   A__SEL(s(s(from(z0))), cons(x1, x2)) -> c4(A__SEL(s(a__from(mark(z0))), mark(x2)), MARK(x2))
   A__SEL(s(s(sel(z0, z1))), cons(x1, x2)) -> c4(A__SEL(s(a__sel(mark(z0), mark(z1))), mark(x2)), MARK(x2))
   A__SEL(s(s(cons(z0, z1))), cons(x1, x2)) -> c4(A__SEL(s(cons(mark(z0), z1)), mark(x2)), MARK(x2))
   A__SEL(s(s(s(z0))), cons(x1, x2)) -> c4(A__SEL(s(s(mark(z0))), mark(x2)), MARK(x2))
   A__SEL(s(s(0)), cons(x1, x2)) -> c4(A__SEL(s(0), mark(x2)), MARK(x2))
   A__SEL(s(s(x0)), cons(x1, s(z0))) -> c4(MARK(s(z0)))
   A__SEL(s(0), cons(x0, s(z0))) -> c4(A__SEL(0, s(mark(z0))), MARK(s(z0)))
S tuples:
   A__FROM(z0) -> c(MARK(z0))
   A__SEL(0, cons(z0, z1)) -> c2(MARK(z0))
   MARK(from(z0)) -> c6(A__FROM(mark(z0)), MARK(z0))
   MARK(cons(z0, z1)) -> c9(MARK(z0))
   MARK(s(z0)) -> c10(MARK(z0))
   A__SEL(s(x0), cons(x1, s(z0))) -> c3(MARK(x0))
   A__SEL(s(x0), cons(x1, 0)) -> c3(MARK(x0))
   A__SEL(s(cons(z0, z1)), cons(x1, x2)) -> c3(MARK(cons(z0, z1)))
   A__SEL(s(x0), cons(x1, s(z0))) -> c4(MARK(s(z0)))
   A__SEL(s(cons(z0, z1)), cons(x1, x2)) -> c4(MARK(x2))
   MARK(sel(x0, from(z0))) -> c7(A__SEL(mark(x0), a__from(mark(z0))), MARK(x0))
   MARK(sel(x0, sel(z0, z1))) -> c7(A__SEL(mark(x0), a__sel(mark(z0), mark(z1))), MARK(x0))
   MARK(sel(x0, cons(z0, z1))) -> c7(A__SEL(mark(x0), cons(mark(z0), z1)), MARK(x0))
   MARK(sel(from(z0), x1)) -> c7(A__SEL(a__from(mark(z0)), mark(x1)), MARK(from(z0)))
   MARK(sel(sel(z0, z1), x1)) -> c7(A__SEL(a__sel(mark(z0), mark(z1)), mark(x1)), MARK(sel(z0, z1)))
   MARK(sel(s(z0), x1)) -> c7(A__SEL(s(mark(z0)), mark(x1)), MARK(s(z0)))
   MARK(sel(x0, s(z0))) -> c7(MARK(x0))
   MARK(sel(x0, 0)) -> c7(MARK(x0))
   MARK(sel(cons(z0, z1), x1)) -> c7(MARK(cons(z0, z1)))
   MARK(sel(0, x1)) -> c7(A__SEL(0, mark(x1)))
   MARK(sel(x0, from(z0))) -> c8(A__SEL(mark(x0), a__from(mark(z0))), MARK(from(z0)))
   MARK(sel(x0, sel(z0, z1))) -> c8(A__SEL(mark(x0), a__sel(mark(z0), mark(z1))), MARK(sel(z0, z1)))
   MARK(sel(x0, cons(z0, z1))) -> c8(A__SEL(mark(x0), cons(mark(z0), z1)), MARK(cons(z0, z1)))
   MARK(sel(from(z0), x1)) -> c8(A__SEL(a__from(mark(z0)), mark(x1)), MARK(x1))
   MARK(sel(sel(z0, z1), x1)) -> c8(A__SEL(a__sel(mark(z0), mark(z1)), mark(x1)), MARK(x1))
   MARK(sel(s(z0), x1)) -> c8(A__SEL(s(mark(z0)), mark(x1)), MARK(x1))
   MARK(sel(0, x1)) -> c8(A__SEL(0, mark(x1)), MARK(x1))
   MARK(sel(x0, s(z0))) -> c8(MARK(s(z0)))
   MARK(sel(cons(z0, z1), x1)) -> c8(MARK(x1))
   A__SEL(s(x0), cons(x1, from(x2))) -> c3(A__SEL(mark(x0), cons(mark(mark(x2)), from(s(mark(x2))))), MARK(x0))
   A__SEL(s(x0), cons(x1, from(from(z0)))) -> c3(A__SEL(mark(x0), a__from(a__from(mark(z0)))), MARK(x0))
   A__SEL(s(x0), cons(x1, from(sel(z0, z1)))) -> c3(A__SEL(mark(x0), a__from(a__sel(mark(z0), mark(z1)))), MARK(x0))
   A__SEL(s(x0), cons(x1, from(cons(z0, z1)))) -> c3(A__SEL(mark(x0), a__from(cons(mark(z0), z1))), MARK(x0))
   A__SEL(s(x0), cons(x1, from(s(z0)))) -> c3(A__SEL(mark(x0), a__from(s(mark(z0)))), MARK(x0))
   A__SEL(s(x0), cons(x1, from(0))) -> c3(A__SEL(mark(x0), a__from(0)), MARK(x0))
   A__SEL(s(from(z0)), cons(x1, from(x2))) -> c3(A__SEL(a__from(mark(z0)), a__from(mark(x2))), MARK(from(z0)))
   A__SEL(s(sel(z0, z1)), cons(x1, from(x2))) -> c3(A__SEL(a__sel(mark(z0), mark(z1)), a__from(mark(x2))), MARK(sel(z0, z1)))
   A__SEL(s(s(z0)), cons(x1, from(x2))) -> c3(A__SEL(s(mark(z0)), a__from(mark(x2))), MARK(s(z0)))
   A__SEL(s(x0), cons(x1, from(x2))) -> c3(MARK(x0))
   A__SEL(s(cons(z0, z1)), cons(x1, from(x2))) -> c3(MARK(cons(z0, z1)))
   A__SEL(s(0), cons(x1, from(x2))) -> c3(A__SEL(0, a__from(mark(x2))))
   A__SEL(s(x0), cons(x1, sel(x2, from(z0)))) -> c3(A__SEL(mark(x0), a__sel(mark(x2), a__from(mark(z0)))), MARK(x0))
   A__SEL(s(x0), cons(x1, sel(x2, sel(z0, z1)))) -> c3(A__SEL(mark(x0), a__sel(mark(x2), a__sel(mark(z0), mark(z1)))), MARK(x0))
   A__SEL(s(x0), cons(x1, sel(x2, cons(z0, z1)))) -> c3(A__SEL(mark(x0), a__sel(mark(x2), cons(mark(z0), z1))), MARK(x0))
   A__SEL(s(x0), cons(x1, sel(x2, s(z0)))) -> c3(A__SEL(mark(x0), a__sel(mark(x2), s(mark(z0)))), MARK(x0))
   A__SEL(s(x0), cons(x1, sel(x2, 0))) -> c3(A__SEL(mark(x0), a__sel(mark(x2), 0)), MARK(x0))
   A__SEL(s(x0), cons(x1, sel(from(z0), x3))) -> c3(A__SEL(mark(x0), a__sel(a__from(mark(z0)), mark(x3))), MARK(x0))
   A__SEL(s(x0), cons(x1, sel(sel(z0, z1), x3))) -> c3(A__SEL(mark(x0), a__sel(a__sel(mark(z0), mark(z1)), mark(x3))), MARK(x0))
   A__SEL(s(x0), cons(x1, sel(cons(z0, z1), x3))) -> c3(A__SEL(mark(x0), a__sel(cons(mark(z0), z1), mark(x3))), MARK(x0))
   A__SEL(s(x0), cons(x1, sel(s(z0), x3))) -> c3(A__SEL(mark(x0), a__sel(s(mark(z0)), mark(x3))), MARK(x0))
   A__SEL(s(x0), cons(x1, sel(0, x3))) -> c3(A__SEL(mark(x0), a__sel(0, mark(x3))), MARK(x0))
   A__SEL(s(from(z0)), cons(x1, sel(x2, x3))) -> c3(A__SEL(a__from(mark(z0)), a__sel(mark(x2), mark(x3))), MARK(from(z0)))
   A__SEL(s(sel(z0, z1)), cons(x1, sel(x2, x3))) -> c3(A__SEL(a__sel(mark(z0), mark(z1)), a__sel(mark(x2), mark(x3))), MARK(sel(z0, z1)))
   A__SEL(s(s(z0)), cons(x1, sel(x2, x3))) -> c3(A__SEL(s(mark(z0)), a__sel(mark(x2), mark(x3))), MARK(s(z0)))
   A__SEL(s(x0), cons(x1, sel(x2, x3))) -> c3(MARK(x0))
   A__SEL(s(cons(z0, z1)), cons(x1, sel(x2, x3))) -> c3(MARK(cons(z0, z1)))
   A__SEL(s(0), cons(x1, sel(x2, x3))) -> c3(A__SEL(0, a__sel(mark(x2), mark(x3))))
   A__SEL(s(x0), cons(x1, cons(from(z0), x3))) -> c3(A__SEL(mark(x0), cons(a__from(mark(z0)), x3)), MARK(x0))
   A__SEL(s(x0), cons(x1, cons(sel(z0, z1), x3))) -> c3(A__SEL(mark(x0), cons(a__sel(mark(z0), mark(z1)), x3)), MARK(x0))
   A__SEL(s(x0), cons(x1, cons(cons(z0, z1), x3))) -> c3(A__SEL(mark(x0), cons(cons(mark(z0), z1), x3)), MARK(x0))
   A__SEL(s(x0), cons(x1, cons(s(z0), x3))) -> c3(A__SEL(mark(x0), cons(s(mark(z0)), x3)), MARK(x0))
   A__SEL(s(x0), cons(x1, cons(0, x3))) -> c3(A__SEL(mark(x0), cons(0, x3)), MARK(x0))
   A__SEL(s(from(z0)), cons(x1, cons(x2, x3))) -> c3(A__SEL(a__from(mark(z0)), cons(mark(x2), x3)), MARK(from(z0)))
   A__SEL(s(sel(z0, z1)), cons(x1, cons(x2, x3))) -> c3(A__SEL(a__sel(mark(z0), mark(z1)), cons(mark(x2), x3)), MARK(sel(z0, z1)))
   A__SEL(s(s(z0)), cons(x1, cons(x2, x3))) -> c3(A__SEL(s(mark(z0)), cons(mark(x2), x3)), MARK(s(z0)))
   A__SEL(s(cons(z0, z1)), cons(x1, cons(x2, x3))) -> c3(MARK(cons(z0, z1)))
   A__SEL(s(0), cons(x1, cons(x2, x3))) -> c3(A__SEL(0, cons(mark(x2), x3)))
   A__SEL(s(from(from(z0))), cons(x1, x2)) -> c3(A__SEL(a__from(a__from(mark(z0))), mark(x2)), MARK(from(from(z0))))
   A__SEL(s(from(sel(z0, z1))), cons(x1, x2)) -> c3(A__SEL(a__from(a__sel(mark(z0), mark(z1))), mark(x2)), MARK(from(sel(z0, z1))))
   A__SEL(s(from(cons(z0, z1))), cons(x1, x2)) -> c3(A__SEL(a__from(cons(mark(z0), z1)), mark(x2)), MARK(from(cons(z0, z1))))
   A__SEL(s(from(s(z0))), cons(x1, x2)) -> c3(A__SEL(a__from(s(mark(z0))), mark(x2)), MARK(from(s(z0))))
   A__SEL(s(from(0)), cons(x1, x2)) -> c3(A__SEL(a__from(0), mark(x2)), MARK(from(0)))
   A__SEL(s(from(x0)), cons(x1, x2)) -> c3(MARK(from(x0)))
   A__SEL(s(from(x0)), cons(x1, s(z0))) -> c3(MARK(from(x0)))
   A__SEL(s(from(x0)), cons(x1, 0)) -> c3(MARK(from(x0)))
   A__SEL(s(sel(x0, from(z0))), cons(x2, x3)) -> c3(A__SEL(a__sel(mark(x0), a__from(mark(z0))), mark(x3)), MARK(sel(x0, from(z0))))
   A__SEL(s(sel(x0, sel(z0, z1))), cons(x2, x3)) -> c3(A__SEL(a__sel(mark(x0), a__sel(mark(z0), mark(z1))), mark(x3)), MARK(sel(x0, sel(z0, z1))))
   A__SEL(s(sel(x0, cons(z0, z1))), cons(x2, x3)) -> c3(A__SEL(a__sel(mark(x0), cons(mark(z0), z1)), mark(x3)), MARK(sel(x0, cons(z0, z1))))
   A__SEL(s(sel(x0, s(z0))), cons(x2, x3)) -> c3(A__SEL(a__sel(mark(x0), s(mark(z0))), mark(x3)), MARK(sel(x0, s(z0))))
   A__SEL(s(sel(x0, 0)), cons(x2, x3)) -> c3(A__SEL(a__sel(mark(x0), 0), mark(x3)), MARK(sel(x0, 0)))
   A__SEL(s(sel(from(z0), x1)), cons(x2, x3)) -> c3(A__SEL(a__sel(a__from(mark(z0)), mark(x1)), mark(x3)), MARK(sel(from(z0), x1)))
   A__SEL(s(sel(sel(z0, z1), x1)), cons(x2, x3)) -> c3(A__SEL(a__sel(a__sel(mark(z0), mark(z1)), mark(x1)), mark(x3)), MARK(sel(sel(z0, z1), x1)))
   A__SEL(s(sel(cons(z0, z1), x1)), cons(x2, x3)) -> c3(A__SEL(a__sel(cons(mark(z0), z1), mark(x1)), mark(x3)), MARK(sel(cons(z0, z1), x1)))
   A__SEL(s(sel(s(z0), x1)), cons(x2, x3)) -> c3(A__SEL(a__sel(s(mark(z0)), mark(x1)), mark(x3)), MARK(sel(s(z0), x1)))
   A__SEL(s(sel(0, x1)), cons(x2, x3)) -> c3(A__SEL(a__sel(0, mark(x1)), mark(x3)), MARK(sel(0, x1)))
   A__SEL(s(sel(x0, x1)), cons(x2, s(z0))) -> c3(MARK(sel(x0, x1)))
   A__SEL(s(sel(x0, x1)), cons(x2, 0)) -> c3(MARK(sel(x0, x1)))
   A__SEL(s(sel(x0, x1)), cons(x2, x3)) -> c3(MARK(sel(x0, x1)))
   A__SEL(s(s(from(z0))), cons(x1, x2)) -> c3(A__SEL(s(a__from(mark(z0))), mark(x2)), MARK(s(from(z0))))
   A__SEL(s(s(sel(z0, z1))), cons(x1, x2)) -> c3(A__SEL(s(a__sel(mark(z0), mark(z1))), mark(x2)), MARK(s(sel(z0, z1))))
   A__SEL(s(s(cons(z0, z1))), cons(x1, x2)) -> c3(A__SEL(s(cons(mark(z0), z1)), mark(x2)), MARK(s(cons(z0, z1))))
   A__SEL(s(s(s(z0))), cons(x1, x2)) -> c3(A__SEL(s(s(mark(z0))), mark(x2)), MARK(s(s(z0))))
   A__SEL(s(s(0)), cons(x1, x2)) -> c3(A__SEL(s(0), mark(x2)), MARK(s(0)))
   A__SEL(s(s(x0)), cons(x1, x2)) -> c3(MARK(s(x0)))
   A__SEL(s(s(x0)), cons(x1, s(z0))) -> c3(MARK(s(x0)))
   A__SEL(s(s(x0)), cons(x1, 0)) -> c3(MARK(s(x0)))
   A__SEL(s(x0), cons(x1, from(x2))) -> c4(A__SEL(mark(x0), cons(mark(mark(x2)), from(s(mark(x2))))), MARK(from(x2)))
   A__SEL(s(x0), cons(x1, from(from(z0)))) -> c4(A__SEL(mark(x0), a__from(a__from(mark(z0)))), MARK(from(from(z0))))
   A__SEL(s(x0), cons(x1, from(sel(z0, z1)))) -> c4(A__SEL(mark(x0), a__from(a__sel(mark(z0), mark(z1)))), MARK(from(sel(z0, z1))))
   A__SEL(s(x0), cons(x1, from(cons(z0, z1)))) -> c4(A__SEL(mark(x0), a__from(cons(mark(z0), z1))), MARK(from(cons(z0, z1))))
   A__SEL(s(x0), cons(x1, from(s(z0)))) -> c4(A__SEL(mark(x0), a__from(s(mark(z0)))), MARK(from(s(z0))))
   A__SEL(s(x0), cons(x1, from(0))) -> c4(A__SEL(mark(x0), a__from(0)), MARK(from(0)))
   A__SEL(s(from(z0)), cons(x1, from(x2))) -> c4(A__SEL(a__from(mark(z0)), a__from(mark(x2))), MARK(from(x2)))
   A__SEL(s(sel(z0, z1)), cons(x1, from(x2))) -> c4(A__SEL(a__sel(mark(z0), mark(z1)), a__from(mark(x2))), MARK(from(x2)))
   A__SEL(s(s(z0)), cons(x1, from(x2))) -> c4(A__SEL(s(mark(z0)), a__from(mark(x2))), MARK(from(x2)))
   A__SEL(s(0), cons(x1, from(x2))) -> c4(A__SEL(0, a__from(mark(x2))), MARK(from(x2)))
   A__SEL(s(x0), cons(x1, from(x2))) -> c4(MARK(from(x2)))
   A__SEL(s(cons(z0, z1)), cons(x1, from(x2))) -> c4(MARK(from(x2)))
   A__SEL(s(x0), cons(x1, sel(x2, from(z0)))) -> c4(A__SEL(mark(x0), a__sel(mark(x2), a__from(mark(z0)))), MARK(sel(x2, from(z0))))
   A__SEL(s(x0), cons(x1, sel(x2, sel(z0, z1)))) -> c4(A__SEL(mark(x0), a__sel(mark(x2), a__sel(mark(z0), mark(z1)))), MARK(sel(x2, sel(z0, z1))))
   A__SEL(s(x0), cons(x1, sel(x2, cons(z0, z1)))) -> c4(A__SEL(mark(x0), a__sel(mark(x2), cons(mark(z0), z1))), MARK(sel(x2, cons(z0, z1))))
   A__SEL(s(x0), cons(x1, sel(x2, s(z0)))) -> c4(A__SEL(mark(x0), a__sel(mark(x2), s(mark(z0)))), MARK(sel(x2, s(z0))))
   A__SEL(s(x0), cons(x1, sel(x2, 0))) -> c4(A__SEL(mark(x0), a__sel(mark(x2), 0)), MARK(sel(x2, 0)))
   A__SEL(s(x0), cons(x1, sel(from(z0), x3))) -> c4(A__SEL(mark(x0), a__sel(a__from(mark(z0)), mark(x3))), MARK(sel(from(z0), x3)))
   A__SEL(s(x0), cons(x1, sel(sel(z0, z1), x3))) -> c4(A__SEL(mark(x0), a__sel(a__sel(mark(z0), mark(z1)), mark(x3))), MARK(sel(sel(z0, z1), x3)))
   A__SEL(s(x0), cons(x1, sel(cons(z0, z1), x3))) -> c4(A__SEL(mark(x0), a__sel(cons(mark(z0), z1), mark(x3))), MARK(sel(cons(z0, z1), x3)))
   A__SEL(s(x0), cons(x1, sel(s(z0), x3))) -> c4(A__SEL(mark(x0), a__sel(s(mark(z0)), mark(x3))), MARK(sel(s(z0), x3)))
   A__SEL(s(x0), cons(x1, sel(0, x3))) -> c4(A__SEL(mark(x0), a__sel(0, mark(x3))), MARK(sel(0, x3)))
   A__SEL(s(from(z0)), cons(x1, sel(x2, x3))) -> c4(A__SEL(a__from(mark(z0)), a__sel(mark(x2), mark(x3))), MARK(sel(x2, x3)))
   A__SEL(s(sel(z0, z1)), cons(x1, sel(x2, x3))) -> c4(A__SEL(a__sel(mark(z0), mark(z1)), a__sel(mark(x2), mark(x3))), MARK(sel(x2, x3)))
   A__SEL(s(s(z0)), cons(x1, sel(x2, x3))) -> c4(A__SEL(s(mark(z0)), a__sel(mark(x2), mark(x3))), MARK(sel(x2, x3)))
   A__SEL(s(0), cons(x1, sel(x2, x3))) -> c4(A__SEL(0, a__sel(mark(x2), mark(x3))), MARK(sel(x2, x3)))
   A__SEL(s(x0), cons(x1, sel(x2, x3))) -> c4(MARK(sel(x2, x3)))
   A__SEL(s(cons(z0, z1)), cons(x1, sel(x2, x3))) -> c4(MARK(sel(x2, x3)))
   A__SEL(s(x0), cons(x1, cons(from(z0), x3))) -> c4(A__SEL(mark(x0), cons(a__from(mark(z0)), x3)), MARK(cons(from(z0), x3)))
   A__SEL(s(x0), cons(x1, cons(sel(z0, z1), x3))) -> c4(A__SEL(mark(x0), cons(a__sel(mark(z0), mark(z1)), x3)), MARK(cons(sel(z0, z1), x3)))
   A__SEL(s(x0), cons(x1, cons(cons(z0, z1), x3))) -> c4(A__SEL(mark(x0), cons(cons(mark(z0), z1), x3)), MARK(cons(cons(z0, z1), x3)))
   A__SEL(s(x0), cons(x1, cons(s(z0), x3))) -> c4(A__SEL(mark(x0), cons(s(mark(z0)), x3)), MARK(cons(s(z0), x3)))
   A__SEL(s(x0), cons(x1, cons(0, x3))) -> c4(A__SEL(mark(x0), cons(0, x3)), MARK(cons(0, x3)))
   A__SEL(s(from(z0)), cons(x1, cons(x2, x3))) -> c4(A__SEL(a__from(mark(z0)), cons(mark(x2), x3)), MARK(cons(x2, x3)))
   A__SEL(s(sel(z0, z1)), cons(x1, cons(x2, x3))) -> c4(A__SEL(a__sel(mark(z0), mark(z1)), cons(mark(x2), x3)), MARK(cons(x2, x3)))
   A__SEL(s(s(z0)), cons(x1, cons(x2, x3))) -> c4(A__SEL(s(mark(z0)), cons(mark(x2), x3)), MARK(cons(x2, x3)))
   A__SEL(s(0), cons(x1, cons(x2, x3))) -> c4(A__SEL(0, cons(mark(x2), x3)), MARK(cons(x2, x3)))
   A__SEL(s(x0), cons(x1, cons(x2, x3))) -> c4(MARK(cons(x2, x3)))
   A__SEL(s(cons(z0, z1)), cons(x1, cons(x2, x3))) -> c4(MARK(cons(x2, x3)))
   A__SEL(s(from(from(z0))), cons(x1, x2)) -> c4(A__SEL(a__from(a__from(mark(z0))), mark(x2)), MARK(x2))
   A__SEL(s(from(sel(z0, z1))), cons(x1, x2)) -> c4(A__SEL(a__from(a__sel(mark(z0), mark(z1))), mark(x2)), MARK(x2))
   A__SEL(s(from(cons(z0, z1))), cons(x1, x2)) -> c4(A__SEL(a__from(cons(mark(z0), z1)), mark(x2)), MARK(x2))
   A__SEL(s(from(s(z0))), cons(x1, x2)) -> c4(A__SEL(a__from(s(mark(z0))), mark(x2)), MARK(x2))
   A__SEL(s(from(0)), cons(x1, x2)) -> c4(A__SEL(a__from(0), mark(x2)), MARK(x2))
   A__SEL(s(from(x0)), cons(x1, s(z0))) -> c4(MARK(s(z0)))
   A__SEL(s(from(x0)), cons(x1, x2)) -> c4(MARK(x2))
   A__SEL(s(sel(x0, from(z0))), cons(x2, x3)) -> c4(A__SEL(a__sel(mark(x0), a__from(mark(z0))), mark(x3)), MARK(x3))
   A__SEL(s(sel(x0, sel(z0, z1))), cons(x2, x3)) -> c4(A__SEL(a__sel(mark(x0), a__sel(mark(z0), mark(z1))), mark(x3)), MARK(x3))
   A__SEL(s(sel(x0, cons(z0, z1))), cons(x2, x3)) -> c4(A__SEL(a__sel(mark(x0), cons(mark(z0), z1)), mark(x3)), MARK(x3))
   A__SEL(s(sel(x0, s(z0))), cons(x2, x3)) -> c4(A__SEL(a__sel(mark(x0), s(mark(z0))), mark(x3)), MARK(x3))
   A__SEL(s(sel(x0, 0)), cons(x2, x3)) -> c4(A__SEL(a__sel(mark(x0), 0), mark(x3)), MARK(x3))
   A__SEL(s(sel(from(z0), x1)), cons(x2, x3)) -> c4(A__SEL(a__sel(a__from(mark(z0)), mark(x1)), mark(x3)), MARK(x3))
   A__SEL(s(sel(sel(z0, z1), x1)), cons(x2, x3)) -> c4(A__SEL(a__sel(a__sel(mark(z0), mark(z1)), mark(x1)), mark(x3)), MARK(x3))
   A__SEL(s(sel(cons(z0, z1), x1)), cons(x2, x3)) -> c4(A__SEL(a__sel(cons(mark(z0), z1), mark(x1)), mark(x3)), MARK(x3))
   A__SEL(s(sel(s(z0), x1)), cons(x2, x3)) -> c4(A__SEL(a__sel(s(mark(z0)), mark(x1)), mark(x3)), MARK(x3))
   A__SEL(s(sel(0, x1)), cons(x2, x3)) -> c4(A__SEL(a__sel(0, mark(x1)), mark(x3)), MARK(x3))
   A__SEL(s(sel(x0, x1)), cons(x2, s(z0))) -> c4(MARK(s(z0)))
   A__SEL(s(sel(x0, x1)), cons(x2, x3)) -> c4(MARK(x3))
   A__SEL(s(s(from(z0))), cons(x1, x2)) -> c4(A__SEL(s(a__from(mark(z0))), mark(x2)), MARK(x2))
   A__SEL(s(s(sel(z0, z1))), cons(x1, x2)) -> c4(A__SEL(s(a__sel(mark(z0), mark(z1))), mark(x2)), MARK(x2))
   A__SEL(s(s(cons(z0, z1))), cons(x1, x2)) -> c4(A__SEL(s(cons(mark(z0), z1)), mark(x2)), MARK(x2))
   A__SEL(s(s(s(z0))), cons(x1, x2)) -> c4(A__SEL(s(s(mark(z0))), mark(x2)), MARK(x2))
   A__SEL(s(s(0)), cons(x1, x2)) -> c4(A__SEL(s(0), mark(x2)), MARK(x2))
   A__SEL(s(s(x0)), cons(x1, s(z0))) -> c4(MARK(s(z0)))
   A__SEL(s(0), cons(x0, s(z0))) -> c4(A__SEL(0, s(mark(z0))), MARK(s(z0)))
K tuples:none
Defined Rule Symbols:   a__from_1, a__sel_2, mark_1

Defined Pair Symbols:   A__FROM_1, A__SEL_2, MARK_1

Compound Symbols:   c_1, c2_1, c6_2, c9_1, c10_1, c3_1, c4_1, c7_2, c7_1, c8_2, c8_1, c3_2, c4_2


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

(140)
Obligation:
Complexity Dependency Tuples Problem

Rules:
   a__from(z0) -> cons(mark(z0), from(s(z0)))
   a__from(z0) -> from(z0)
   a__sel(0, cons(z0, z1)) -> mark(z0)
   a__sel(s(z0), cons(z1, z2)) -> a__sel(mark(z0), mark(z2))
   a__sel(z0, z1) -> sel(z0, z1)
   mark(from(z0)) -> a__from(mark(z0))
   mark(sel(z0, z1)) -> a__sel(mark(z0), mark(z1))
   mark(cons(z0, z1)) -> cons(mark(z0), z1)
   mark(s(z0)) -> s(mark(z0))
   mark(0) -> 0
Tuples:
   A__FROM(z0) -> c(MARK(z0))
   A__SEL(0, cons(z0, z1)) -> c2(MARK(z0))
   MARK(from(z0)) -> c6(A__FROM(mark(z0)), MARK(z0))
   MARK(cons(z0, z1)) -> c9(MARK(z0))
   MARK(s(z0)) -> c10(MARK(z0))
   A__SEL(s(x0), cons(x1, s(z0))) -> c3(MARK(x0))
   A__SEL(s(x0), cons(x1, 0)) -> c3(MARK(x0))
   A__SEL(s(cons(z0, z1)), cons(x1, x2)) -> c3(MARK(cons(z0, z1)))
   A__SEL(s(x0), cons(x1, s(z0))) -> c4(MARK(s(z0)))
   A__SEL(s(cons(z0, z1)), cons(x1, x2)) -> c4(MARK(x2))
   MARK(sel(x0, from(z0))) -> c7(A__SEL(mark(x0), a__from(mark(z0))), MARK(x0))
   MARK(sel(x0, sel(z0, z1))) -> c7(A__SEL(mark(x0), a__sel(mark(z0), mark(z1))), MARK(x0))
   MARK(sel(x0, cons(z0, z1))) -> c7(A__SEL(mark(x0), cons(mark(z0), z1)), MARK(x0))
   MARK(sel(from(z0), x1)) -> c7(A__SEL(a__from(mark(z0)), mark(x1)), MARK(from(z0)))
   MARK(sel(sel(z0, z1), x1)) -> c7(A__SEL(a__sel(mark(z0), mark(z1)), mark(x1)), MARK(sel(z0, z1)))
   MARK(sel(s(z0), x1)) -> c7(A__SEL(s(mark(z0)), mark(x1)), MARK(s(z0)))
   MARK(sel(x0, s(z0))) -> c7(MARK(x0))
   MARK(sel(x0, 0)) -> c7(MARK(x0))
   MARK(sel(cons(z0, z1), x1)) -> c7(MARK(cons(z0, z1)))
   MARK(sel(0, x1)) -> c7(A__SEL(0, mark(x1)))
   MARK(sel(x0, from(z0))) -> c8(A__SEL(mark(x0), a__from(mark(z0))), MARK(from(z0)))
   MARK(sel(x0, sel(z0, z1))) -> c8(A__SEL(mark(x0), a__sel(mark(z0), mark(z1))), MARK(sel(z0, z1)))
   MARK(sel(x0, cons(z0, z1))) -> c8(A__SEL(mark(x0), cons(mark(z0), z1)), MARK(cons(z0, z1)))
   MARK(sel(from(z0), x1)) -> c8(A__SEL(a__from(mark(z0)), mark(x1)), MARK(x1))
   MARK(sel(sel(z0, z1), x1)) -> c8(A__SEL(a__sel(mark(z0), mark(z1)), mark(x1)), MARK(x1))
   MARK(sel(s(z0), x1)) -> c8(A__SEL(s(mark(z0)), mark(x1)), MARK(x1))
   MARK(sel(0, x1)) -> c8(A__SEL(0, mark(x1)), MARK(x1))
   MARK(sel(x0, s(z0))) -> c8(MARK(s(z0)))
   MARK(sel(cons(z0, z1), x1)) -> c8(MARK(x1))
   A__SEL(s(x0), cons(x1, from(x2))) -> c3(A__SEL(mark(x0), cons(mark(mark(x2)), from(s(mark(x2))))), MARK(x0))
   A__SEL(s(x0), cons(x1, from(from(z0)))) -> c3(A__SEL(mark(x0), a__from(a__from(mark(z0)))), MARK(x0))
   A__SEL(s(x0), cons(x1, from(sel(z0, z1)))) -> c3(A__SEL(mark(x0), a__from(a__sel(mark(z0), mark(z1)))), MARK(x0))
   A__SEL(s(x0), cons(x1, from(cons(z0, z1)))) -> c3(A__SEL(mark(x0), a__from(cons(mark(z0), z1))), MARK(x0))
   A__SEL(s(x0), cons(x1, from(s(z0)))) -> c3(A__SEL(mark(x0), a__from(s(mark(z0)))), MARK(x0))
   A__SEL(s(x0), cons(x1, from(0))) -> c3(A__SEL(mark(x0), a__from(0)), MARK(x0))
   A__SEL(s(from(z0)), cons(x1, from(x2))) -> c3(A__SEL(a__from(mark(z0)), a__from(mark(x2))), MARK(from(z0)))
   A__SEL(s(sel(z0, z1)), cons(x1, from(x2))) -> c3(A__SEL(a__sel(mark(z0), mark(z1)), a__from(mark(x2))), MARK(sel(z0, z1)))
   A__SEL(s(s(z0)), cons(x1, from(x2))) -> c3(A__SEL(s(mark(z0)), a__from(mark(x2))), MARK(s(z0)))
   A__SEL(s(x0), cons(x1, from(x2))) -> c3(MARK(x0))
   A__SEL(s(cons(z0, z1)), cons(x1, from(x2))) -> c3(MARK(cons(z0, z1)))
   A__SEL(s(0), cons(x1, from(x2))) -> c3(A__SEL(0, a__from(mark(x2))))
   A__SEL(s(x0), cons(x1, sel(x2, from(z0)))) -> c3(A__SEL(mark(x0), a__sel(mark(x2), a__from(mark(z0)))), MARK(x0))
   A__SEL(s(x0), cons(x1, sel(x2, sel(z0, z1)))) -> c3(A__SEL(mark(x0), a__sel(mark(x2), a__sel(mark(z0), mark(z1)))), MARK(x0))
   A__SEL(s(x0), cons(x1, sel(x2, cons(z0, z1)))) -> c3(A__SEL(mark(x0), a__sel(mark(x2), cons(mark(z0), z1))), MARK(x0))
   A__SEL(s(x0), cons(x1, sel(x2, s(z0)))) -> c3(A__SEL(mark(x0), a__sel(mark(x2), s(mark(z0)))), MARK(x0))
   A__SEL(s(x0), cons(x1, sel(x2, 0))) -> c3(A__SEL(mark(x0), a__sel(mark(x2), 0)), MARK(x0))
   A__SEL(s(x0), cons(x1, sel(from(z0), x3))) -> c3(A__SEL(mark(x0), a__sel(a__from(mark(z0)), mark(x3))), MARK(x0))
   A__SEL(s(x0), cons(x1, sel(sel(z0, z1), x3))) -> c3(A__SEL(mark(x0), a__sel(a__sel(mark(z0), mark(z1)), mark(x3))), MARK(x0))
   A__SEL(s(x0), cons(x1, sel(cons(z0, z1), x3))) -> c3(A__SEL(mark(x0), a__sel(cons(mark(z0), z1), mark(x3))), MARK(x0))
   A__SEL(s(x0), cons(x1, sel(s(z0), x3))) -> c3(A__SEL(mark(x0), a__sel(s(mark(z0)), mark(x3))), MARK(x0))
   A__SEL(s(x0), cons(x1, sel(0, x3))) -> c3(A__SEL(mark(x0), a__sel(0, mark(x3))), MARK(x0))
   A__SEL(s(from(z0)), cons(x1, sel(x2, x3))) -> c3(A__SEL(a__from(mark(z0)), a__sel(mark(x2), mark(x3))), MARK(from(z0)))
   A__SEL(s(sel(z0, z1)), cons(x1, sel(x2, x3))) -> c3(A__SEL(a__sel(mark(z0), mark(z1)), a__sel(mark(x2), mark(x3))), MARK(sel(z0, z1)))
   A__SEL(s(s(z0)), cons(x1, sel(x2, x3))) -> c3(A__SEL(s(mark(z0)), a__sel(mark(x2), mark(x3))), MARK(s(z0)))
   A__SEL(s(x0), cons(x1, sel(x2, x3))) -> c3(MARK(x0))
   A__SEL(s(cons(z0, z1)), cons(x1, sel(x2, x3))) -> c3(MARK(cons(z0, z1)))
   A__SEL(s(0), cons(x1, sel(x2, x3))) -> c3(A__SEL(0, a__sel(mark(x2), mark(x3))))
   A__SEL(s(x0), cons(x1, cons(from(z0), x3))) -> c3(A__SEL(mark(x0), cons(a__from(mark(z0)), x3)), MARK(x0))
   A__SEL(s(x0), cons(x1, cons(sel(z0, z1), x3))) -> c3(A__SEL(mark(x0), cons(a__sel(mark(z0), mark(z1)), x3)), MARK(x0))
   A__SEL(s(x0), cons(x1, cons(cons(z0, z1), x3))) -> c3(A__SEL(mark(x0), cons(cons(mark(z0), z1), x3)), MARK(x0))
   A__SEL(s(x0), cons(x1, cons(s(z0), x3))) -> c3(A__SEL(mark(x0), cons(s(mark(z0)), x3)), MARK(x0))
   A__SEL(s(x0), cons(x1, cons(0, x3))) -> c3(A__SEL(mark(x0), cons(0, x3)), MARK(x0))
   A__SEL(s(from(z0)), cons(x1, cons(x2, x3))) -> c3(A__SEL(a__from(mark(z0)), cons(mark(x2), x3)), MARK(from(z0)))
   A__SEL(s(sel(z0, z1)), cons(x1, cons(x2, x3))) -> c3(A__SEL(a__sel(mark(z0), mark(z1)), cons(mark(x2), x3)), MARK(sel(z0, z1)))
   A__SEL(s(s(z0)), cons(x1, cons(x2, x3))) -> c3(A__SEL(s(mark(z0)), cons(mark(x2), x3)), MARK(s(z0)))
   A__SEL(s(cons(z0, z1)), cons(x1, cons(x2, x3))) -> c3(MARK(cons(z0, z1)))
   A__SEL(s(0), cons(x1, cons(x2, x3))) -> c3(A__SEL(0, cons(mark(x2), x3)))
   A__SEL(s(from(from(z0))), cons(x1, x2)) -> c3(A__SEL(a__from(a__from(mark(z0))), mark(x2)), MARK(from(from(z0))))
   A__SEL(s(from(sel(z0, z1))), cons(x1, x2)) -> c3(A__SEL(a__from(a__sel(mark(z0), mark(z1))), mark(x2)), MARK(from(sel(z0, z1))))
   A__SEL(s(from(cons(z0, z1))), cons(x1, x2)) -> c3(A__SEL(a__from(cons(mark(z0), z1)), mark(x2)), MARK(from(cons(z0, z1))))
   A__SEL(s(from(s(z0))), cons(x1, x2)) -> c3(A__SEL(a__from(s(mark(z0))), mark(x2)), MARK(from(s(z0))))
   A__SEL(s(from(0)), cons(x1, x2)) -> c3(A__SEL(a__from(0), mark(x2)), MARK(from(0)))
   A__SEL(s(from(x0)), cons(x1, x2)) -> c3(MARK(from(x0)))
   A__SEL(s(from(x0)), cons(x1, s(z0))) -> c3(MARK(from(x0)))
   A__SEL(s(from(x0)), cons(x1, 0)) -> c3(MARK(from(x0)))
   A__SEL(s(sel(x0, from(z0))), cons(x2, x3)) -> c3(A__SEL(a__sel(mark(x0), a__from(mark(z0))), mark(x3)), MARK(sel(x0, from(z0))))
   A__SEL(s(sel(x0, sel(z0, z1))), cons(x2, x3)) -> c3(A__SEL(a__sel(mark(x0), a__sel(mark(z0), mark(z1))), mark(x3)), MARK(sel(x0, sel(z0, z1))))
   A__SEL(s(sel(x0, cons(z0, z1))), cons(x2, x3)) -> c3(A__SEL(a__sel(mark(x0), cons(mark(z0), z1)), mark(x3)), MARK(sel(x0, cons(z0, z1))))
   A__SEL(s(sel(x0, s(z0))), cons(x2, x3)) -> c3(A__SEL(a__sel(mark(x0), s(mark(z0))), mark(x3)), MARK(sel(x0, s(z0))))
   A__SEL(s(sel(x0, 0)), cons(x2, x3)) -> c3(A__SEL(a__sel(mark(x0), 0), mark(x3)), MARK(sel(x0, 0)))
   A__SEL(s(sel(from(z0), x1)), cons(x2, x3)) -> c3(A__SEL(a__sel(a__from(mark(z0)), mark(x1)), mark(x3)), MARK(sel(from(z0), x1)))
   A__SEL(s(sel(sel(z0, z1), x1)), cons(x2, x3)) -> c3(A__SEL(a__sel(a__sel(mark(z0), mark(z1)), mark(x1)), mark(x3)), MARK(sel(sel(z0, z1), x1)))
   A__SEL(s(sel(cons(z0, z1), x1)), cons(x2, x3)) -> c3(A__SEL(a__sel(cons(mark(z0), z1), mark(x1)), mark(x3)), MARK(sel(cons(z0, z1), x1)))
   A__SEL(s(sel(s(z0), x1)), cons(x2, x3)) -> c3(A__SEL(a__sel(s(mark(z0)), mark(x1)), mark(x3)), MARK(sel(s(z0), x1)))
   A__SEL(s(sel(0, x1)), cons(x2, x3)) -> c3(A__SEL(a__sel(0, mark(x1)), mark(x3)), MARK(sel(0, x1)))
   A__SEL(s(sel(x0, x1)), cons(x2, s(z0))) -> c3(MARK(sel(x0, x1)))
   A__SEL(s(sel(x0, x1)), cons(x2, 0)) -> c3(MARK(sel(x0, x1)))
   A__SEL(s(sel(x0, x1)), cons(x2, x3)) -> c3(MARK(sel(x0, x1)))
   A__SEL(s(s(from(z0))), cons(x1, x2)) -> c3(A__SEL(s(a__from(mark(z0))), mark(x2)), MARK(s(from(z0))))
   A__SEL(s(s(sel(z0, z1))), cons(x1, x2)) -> c3(A__SEL(s(a__sel(mark(z0), mark(z1))), mark(x2)), MARK(s(sel(z0, z1))))
   A__SEL(s(s(cons(z0, z1))), cons(x1, x2)) -> c3(A__SEL(s(cons(mark(z0), z1)), mark(x2)), MARK(s(cons(z0, z1))))
   A__SEL(s(s(s(z0))), cons(x1, x2)) -> c3(A__SEL(s(s(mark(z0))), mark(x2)), MARK(s(s(z0))))
   A__SEL(s(s(0)), cons(x1, x2)) -> c3(A__SEL(s(0), mark(x2)), MARK(s(0)))
   A__SEL(s(s(x0)), cons(x1, x2)) -> c3(MARK(s(x0)))
   A__SEL(s(s(x0)), cons(x1, s(z0))) -> c3(MARK(s(x0)))
   A__SEL(s(s(x0)), cons(x1, 0)) -> c3(MARK(s(x0)))
   A__SEL(s(x0), cons(x1, from(x2))) -> c4(A__SEL(mark(x0), cons(mark(mark(x2)), from(s(mark(x2))))), MARK(from(x2)))
   A__SEL(s(x0), cons(x1, from(from(z0)))) -> c4(A__SEL(mark(x0), a__from(a__from(mark(z0)))), MARK(from(from(z0))))
   A__SEL(s(x0), cons(x1, from(sel(z0, z1)))) -> c4(A__SEL(mark(x0), a__from(a__sel(mark(z0), mark(z1)))), MARK(from(sel(z0, z1))))
   A__SEL(s(x0), cons(x1, from(cons(z0, z1)))) -> c4(A__SEL(mark(x0), a__from(cons(mark(z0), z1))), MARK(from(cons(z0, z1))))
   A__SEL(s(x0), cons(x1, from(s(z0)))) -> c4(A__SEL(mark(x0), a__from(s(mark(z0)))), MARK(from(s(z0))))
   A__SEL(s(x0), cons(x1, from(0))) -> c4(A__SEL(mark(x0), a__from(0)), MARK(from(0)))
   A__SEL(s(from(z0)), cons(x1, from(x2))) -> c4(A__SEL(a__from(mark(z0)), a__from(mark(x2))), MARK(from(x2)))
   A__SEL(s(sel(z0, z1)), cons(x1, from(x2))) -> c4(A__SEL(a__sel(mark(z0), mark(z1)), a__from(mark(x2))), MARK(from(x2)))
   A__SEL(s(s(z0)), cons(x1, from(x2))) -> c4(A__SEL(s(mark(z0)), a__from(mark(x2))), MARK(from(x2)))
   A__SEL(s(0), cons(x1, from(x2))) -> c4(A__SEL(0, a__from(mark(x2))), MARK(from(x2)))
   A__SEL(s(x0), cons(x1, from(x2))) -> c4(MARK(from(x2)))
   A__SEL(s(cons(z0, z1)), cons(x1, from(x2))) -> c4(MARK(from(x2)))
   A__SEL(s(x0), cons(x1, sel(x2, from(z0)))) -> c4(A__SEL(mark(x0), a__sel(mark(x2), a__from(mark(z0)))), MARK(sel(x2, from(z0))))
   A__SEL(s(x0), cons(x1, sel(x2, sel(z0, z1)))) -> c4(A__SEL(mark(x0), a__sel(mark(x2), a__sel(mark(z0), mark(z1)))), MARK(sel(x2, sel(z0, z1))))
   A__SEL(s(x0), cons(x1, sel(x2, cons(z0, z1)))) -> c4(A__SEL(mark(x0), a__sel(mark(x2), cons(mark(z0), z1))), MARK(sel(x2, cons(z0, z1))))
   A__SEL(s(x0), cons(x1, sel(x2, s(z0)))) -> c4(A__SEL(mark(x0), a__sel(mark(x2), s(mark(z0)))), MARK(sel(x2, s(z0))))
   A__SEL(s(x0), cons(x1, sel(x2, 0))) -> c4(A__SEL(mark(x0), a__sel(mark(x2), 0)), MARK(sel(x2, 0)))
   A__SEL(s(x0), cons(x1, sel(from(z0), x3))) -> c4(A__SEL(mark(x0), a__sel(a__from(mark(z0)), mark(x3))), MARK(sel(from(z0), x3)))
   A__SEL(s(x0), cons(x1, sel(sel(z0, z1), x3))) -> c4(A__SEL(mark(x0), a__sel(a__sel(mark(z0), mark(z1)), mark(x3))), MARK(sel(sel(z0, z1), x3)))
   A__SEL(s(x0), cons(x1, sel(cons(z0, z1), x3))) -> c4(A__SEL(mark(x0), a__sel(cons(mark(z0), z1), mark(x3))), MARK(sel(cons(z0, z1), x3)))
   A__SEL(s(x0), cons(x1, sel(s(z0), x3))) -> c4(A__SEL(mark(x0), a__sel(s(mark(z0)), mark(x3))), MARK(sel(s(z0), x3)))
   A__SEL(s(x0), cons(x1, sel(0, x3))) -> c4(A__SEL(mark(x0), a__sel(0, mark(x3))), MARK(sel(0, x3)))
   A__SEL(s(from(z0)), cons(x1, sel(x2, x3))) -> c4(A__SEL(a__from(mark(z0)), a__sel(mark(x2), mark(x3))), MARK(sel(x2, x3)))
   A__SEL(s(sel(z0, z1)), cons(x1, sel(x2, x3))) -> c4(A__SEL(a__sel(mark(z0), mark(z1)), a__sel(mark(x2), mark(x3))), MARK(sel(x2, x3)))
   A__SEL(s(s(z0)), cons(x1, sel(x2, x3))) -> c4(A__SEL(s(mark(z0)), a__sel(mark(x2), mark(x3))), MARK(sel(x2, x3)))
   A__SEL(s(0), cons(x1, sel(x2, x3))) -> c4(A__SEL(0, a__sel(mark(x2), mark(x3))), MARK(sel(x2, x3)))
   A__SEL(s(x0), cons(x1, sel(x2, x3))) -> c4(MARK(sel(x2, x3)))
   A__SEL(s(cons(z0, z1)), cons(x1, sel(x2, x3))) -> c4(MARK(sel(x2, x3)))
   A__SEL(s(x0), cons(x1, cons(from(z0), x3))) -> c4(A__SEL(mark(x0), cons(a__from(mark(z0)), x3)), MARK(cons(from(z0), x3)))
   A__SEL(s(x0), cons(x1, cons(sel(z0, z1), x3))) -> c4(A__SEL(mark(x0), cons(a__sel(mark(z0), mark(z1)), x3)), MARK(cons(sel(z0, z1), x3)))
   A__SEL(s(x0), cons(x1, cons(cons(z0, z1), x3))) -> c4(A__SEL(mark(x0), cons(cons(mark(z0), z1), x3)), MARK(cons(cons(z0, z1), x3)))
   A__SEL(s(x0), cons(x1, cons(s(z0), x3))) -> c4(A__SEL(mark(x0), cons(s(mark(z0)), x3)), MARK(cons(s(z0), x3)))
   A__SEL(s(x0), cons(x1, cons(0, x3))) -> c4(A__SEL(mark(x0), cons(0, x3)), MARK(cons(0, x3)))
   A__SEL(s(from(z0)), cons(x1, cons(x2, x3))) -> c4(A__SEL(a__from(mark(z0)), cons(mark(x2), x3)), MARK(cons(x2, x3)))
   A__SEL(s(sel(z0, z1)), cons(x1, cons(x2, x3))) -> c4(A__SEL(a__sel(mark(z0), mark(z1)), cons(mark(x2), x3)), MARK(cons(x2, x3)))
   A__SEL(s(s(z0)), cons(x1, cons(x2, x3))) -> c4(A__SEL(s(mark(z0)), cons(mark(x2), x3)), MARK(cons(x2, x3)))
   A__SEL(s(0), cons(x1, cons(x2, x3))) -> c4(A__SEL(0, cons(mark(x2), x3)), MARK(cons(x2, x3)))
   A__SEL(s(x0), cons(x1, cons(x2, x3))) -> c4(MARK(cons(x2, x3)))
   A__SEL(s(cons(z0, z1)), cons(x1, cons(x2, x3))) -> c4(MARK(cons(x2, x3)))
   A__SEL(s(from(from(z0))), cons(x1, x2)) -> c4(A__SEL(a__from(a__from(mark(z0))), mark(x2)), MARK(x2))
   A__SEL(s(from(sel(z0, z1))), cons(x1, x2)) -> c4(A__SEL(a__from(a__sel(mark(z0), mark(z1))), mark(x2)), MARK(x2))
   A__SEL(s(from(cons(z0, z1))), cons(x1, x2)) -> c4(A__SEL(a__from(cons(mark(z0), z1)), mark(x2)), MARK(x2))
   A__SEL(s(from(s(z0))), cons(x1, x2)) -> c4(A__SEL(a__from(s(mark(z0))), mark(x2)), MARK(x2))
   A__SEL(s(from(0)), cons(x1, x2)) -> c4(A__SEL(a__from(0), mark(x2)), MARK(x2))
   A__SEL(s(from(x0)), cons(x1, s(z0))) -> c4(MARK(s(z0)))
   A__SEL(s(from(x0)), cons(x1, x2)) -> c4(MARK(x2))
   A__SEL(s(sel(x0, from(z0))), cons(x2, x3)) -> c4(A__SEL(a__sel(mark(x0), a__from(mark(z0))), mark(x3)), MARK(x3))
   A__SEL(s(sel(x0, sel(z0, z1))), cons(x2, x3)) -> c4(A__SEL(a__sel(mark(x0), a__sel(mark(z0), mark(z1))), mark(x3)), MARK(x3))
   A__SEL(s(sel(x0, cons(z0, z1))), cons(x2, x3)) -> c4(A__SEL(a__sel(mark(x0), cons(mark(z0), z1)), mark(x3)), MARK(x3))
   A__SEL(s(sel(x0, s(z0))), cons(x2, x3)) -> c4(A__SEL(a__sel(mark(x0), s(mark(z0))), mark(x3)), MARK(x3))
   A__SEL(s(sel(x0, 0)), cons(x2, x3)) -> c4(A__SEL(a__sel(mark(x0), 0), mark(x3)), MARK(x3))
   A__SEL(s(sel(from(z0), x1)), cons(x2, x3)) -> c4(A__SEL(a__sel(a__from(mark(z0)), mark(x1)), mark(x3)), MARK(x3))
   A__SEL(s(sel(sel(z0, z1), x1)), cons(x2, x3)) -> c4(A__SEL(a__sel(a__sel(mark(z0), mark(z1)), mark(x1)), mark(x3)), MARK(x3))
   A__SEL(s(sel(cons(z0, z1), x1)), cons(x2, x3)) -> c4(A__SEL(a__sel(cons(mark(z0), z1), mark(x1)), mark(x3)), MARK(x3))
   A__SEL(s(sel(s(z0), x1)), cons(x2, x3)) -> c4(A__SEL(a__sel(s(mark(z0)), mark(x1)), mark(x3)), MARK(x3))
   A__SEL(s(sel(0, x1)), cons(x2, x3)) -> c4(A__SEL(a__sel(0, mark(x1)), mark(x3)), MARK(x3))
   A__SEL(s(sel(x0, x1)), cons(x2, s(z0))) -> c4(MARK(s(z0)))
   A__SEL(s(sel(x0, x1)), cons(x2, x3)) -> c4(MARK(x3))
   A__SEL(s(s(from(z0))), cons(x1, x2)) -> c4(A__SEL(s(a__from(mark(z0))), mark(x2)), MARK(x2))
   A__SEL(s(s(sel(z0, z1))), cons(x1, x2)) -> c4(A__SEL(s(a__sel(mark(z0), mark(z1))), mark(x2)), MARK(x2))
   A__SEL(s(s(cons(z0, z1))), cons(x1, x2)) -> c4(A__SEL(s(cons(mark(z0), z1)), mark(x2)), MARK(x2))
   A__SEL(s(s(s(z0))), cons(x1, x2)) -> c4(A__SEL(s(s(mark(z0))), mark(x2)), MARK(x2))
   A__SEL(s(s(0)), cons(x1, x2)) -> c4(A__SEL(s(0), mark(x2)), MARK(x2))
   A__SEL(s(s(x0)), cons(x1, s(z0))) -> c4(MARK(s(z0)))
   A__SEL(s(0), cons(x0, s(z0))) -> c4(MARK(s(z0)))
S tuples:
   A__FROM(z0) -> c(MARK(z0))
   A__SEL(0, cons(z0, z1)) -> c2(MARK(z0))
   MARK(from(z0)) -> c6(A__FROM(mark(z0)), MARK(z0))
   MARK(cons(z0, z1)) -> c9(MARK(z0))
   MARK(s(z0)) -> c10(MARK(z0))
   A__SEL(s(x0), cons(x1, s(z0))) -> c3(MARK(x0))
   A__SEL(s(x0), cons(x1, 0)) -> c3(MARK(x0))
   A__SEL(s(cons(z0, z1)), cons(x1, x2)) -> c3(MARK(cons(z0, z1)))
   A__SEL(s(x0), cons(x1, s(z0))) -> c4(MARK(s(z0)))
   A__SEL(s(cons(z0, z1)), cons(x1, x2)) -> c4(MARK(x2))
   MARK(sel(x0, from(z0))) -> c7(A__SEL(mark(x0), a__from(mark(z0))), MARK(x0))
   MARK(sel(x0, sel(z0, z1))) -> c7(A__SEL(mark(x0), a__sel(mark(z0), mark(z1))), MARK(x0))
   MARK(sel(x0, cons(z0, z1))) -> c7(A__SEL(mark(x0), cons(mark(z0), z1)), MARK(x0))
   MARK(sel(from(z0), x1)) -> c7(A__SEL(a__from(mark(z0)), mark(x1)), MARK(from(z0)))
   MARK(sel(sel(z0, z1), x1)) -> c7(A__SEL(a__sel(mark(z0), mark(z1)), mark(x1)), MARK(sel(z0, z1)))
   MARK(sel(s(z0), x1)) -> c7(A__SEL(s(mark(z0)), mark(x1)), MARK(s(z0)))
   MARK(sel(x0, s(z0))) -> c7(MARK(x0))
   MARK(sel(x0, 0)) -> c7(MARK(x0))
   MARK(sel(cons(z0, z1), x1)) -> c7(MARK(cons(z0, z1)))
   MARK(sel(0, x1)) -> c7(A__SEL(0, mark(x1)))
   MARK(sel(x0, from(z0))) -> c8(A__SEL(mark(x0), a__from(mark(z0))), MARK(from(z0)))
   MARK(sel(x0, sel(z0, z1))) -> c8(A__SEL(mark(x0), a__sel(mark(z0), mark(z1))), MARK(sel(z0, z1)))
   MARK(sel(x0, cons(z0, z1))) -> c8(A__SEL(mark(x0), cons(mark(z0), z1)), MARK(cons(z0, z1)))
   MARK(sel(from(z0), x1)) -> c8(A__SEL(a__from(mark(z0)), mark(x1)), MARK(x1))
   MARK(sel(sel(z0, z1), x1)) -> c8(A__SEL(a__sel(mark(z0), mark(z1)), mark(x1)), MARK(x1))
   MARK(sel(s(z0), x1)) -> c8(A__SEL(s(mark(z0)), mark(x1)), MARK(x1))
   MARK(sel(0, x1)) -> c8(A__SEL(0, mark(x1)), MARK(x1))
   MARK(sel(x0, s(z0))) -> c8(MARK(s(z0)))
   MARK(sel(cons(z0, z1), x1)) -> c8(MARK(x1))
   A__SEL(s(x0), cons(x1, from(x2))) -> c3(A__SEL(mark(x0), cons(mark(mark(x2)), from(s(mark(x2))))), MARK(x0))
   A__SEL(s(x0), cons(x1, from(from(z0)))) -> c3(A__SEL(mark(x0), a__from(a__from(mark(z0)))), MARK(x0))
   A__SEL(s(x0), cons(x1, from(sel(z0, z1)))) -> c3(A__SEL(mark(x0), a__from(a__sel(mark(z0), mark(z1)))), MARK(x0))
   A__SEL(s(x0), cons(x1, from(cons(z0, z1)))) -> c3(A__SEL(mark(x0), a__from(cons(mark(z0), z1))), MARK(x0))
   A__SEL(s(x0), cons(x1, from(s(z0)))) -> c3(A__SEL(mark(x0), a__from(s(mark(z0)))), MARK(x0))
   A__SEL(s(x0), cons(x1, from(0))) -> c3(A__SEL(mark(x0), a__from(0)), MARK(x0))
   A__SEL(s(from(z0)), cons(x1, from(x2))) -> c3(A__SEL(a__from(mark(z0)), a__from(mark(x2))), MARK(from(z0)))
   A__SEL(s(sel(z0, z1)), cons(x1, from(x2))) -> c3(A__SEL(a__sel(mark(z0), mark(z1)), a__from(mark(x2))), MARK(sel(z0, z1)))
   A__SEL(s(s(z0)), cons(x1, from(x2))) -> c3(A__SEL(s(mark(z0)), a__from(mark(x2))), MARK(s(z0)))
   A__SEL(s(x0), cons(x1, from(x2))) -> c3(MARK(x0))
   A__SEL(s(cons(z0, z1)), cons(x1, from(x2))) -> c3(MARK(cons(z0, z1)))
   A__SEL(s(0), cons(x1, from(x2))) -> c3(A__SEL(0, a__from(mark(x2))))
   A__SEL(s(x0), cons(x1, sel(x2, from(z0)))) -> c3(A__SEL(mark(x0), a__sel(mark(x2), a__from(mark(z0)))), MARK(x0))
   A__SEL(s(x0), cons(x1, sel(x2, sel(z0, z1)))) -> c3(A__SEL(mark(x0), a__sel(mark(x2), a__sel(mark(z0), mark(z1)))), MARK(x0))
   A__SEL(s(x0), cons(x1, sel(x2, cons(z0, z1)))) -> c3(A__SEL(mark(x0), a__sel(mark(x2), cons(mark(z0), z1))), MARK(x0))
   A__SEL(s(x0), cons(x1, sel(x2, s(z0)))) -> c3(A__SEL(mark(x0), a__sel(mark(x2), s(mark(z0)))), MARK(x0))
   A__SEL(s(x0), cons(x1, sel(x2, 0))) -> c3(A__SEL(mark(x0), a__sel(mark(x2), 0)), MARK(x0))
   A__SEL(s(x0), cons(x1, sel(from(z0), x3))) -> c3(A__SEL(mark(x0), a__sel(a__from(mark(z0)), mark(x3))), MARK(x0))
   A__SEL(s(x0), cons(x1, sel(sel(z0, z1), x3))) -> c3(A__SEL(mark(x0), a__sel(a__sel(mark(z0), mark(z1)), mark(x3))), MARK(x0))
   A__SEL(s(x0), cons(x1, sel(cons(z0, z1), x3))) -> c3(A__SEL(mark(x0), a__sel(cons(mark(z0), z1), mark(x3))), MARK(x0))
   A__SEL(s(x0), cons(x1, sel(s(z0), x3))) -> c3(A__SEL(mark(x0), a__sel(s(mark(z0)), mark(x3))), MARK(x0))
   A__SEL(s(x0), cons(x1, sel(0, x3))) -> c3(A__SEL(mark(x0), a__sel(0, mark(x3))), MARK(x0))
   A__SEL(s(from(z0)), cons(x1, sel(x2, x3))) -> c3(A__SEL(a__from(mark(z0)), a__sel(mark(x2), mark(x3))), MARK(from(z0)))
   A__SEL(s(sel(z0, z1)), cons(x1, sel(x2, x3))) -> c3(A__SEL(a__sel(mark(z0), mark(z1)), a__sel(mark(x2), mark(x3))), MARK(sel(z0, z1)))
   A__SEL(s(s(z0)), cons(x1, sel(x2, x3))) -> c3(A__SEL(s(mark(z0)), a__sel(mark(x2), mark(x3))), MARK(s(z0)))
   A__SEL(s(x0), cons(x1, sel(x2, x3))) -> c3(MARK(x0))
   A__SEL(s(cons(z0, z1)), cons(x1, sel(x2, x3))) -> c3(MARK(cons(z0, z1)))
   A__SEL(s(0), cons(x1, sel(x2, x3))) -> c3(A__SEL(0, a__sel(mark(x2), mark(x3))))
   A__SEL(s(x0), cons(x1, cons(from(z0), x3))) -> c3(A__SEL(mark(x0), cons(a__from(mark(z0)), x3)), MARK(x0))
   A__SEL(s(x0), cons(x1, cons(sel(z0, z1), x3))) -> c3(A__SEL(mark(x0), cons(a__sel(mark(z0), mark(z1)), x3)), MARK(x0))
   A__SEL(s(x0), cons(x1, cons(cons(z0, z1), x3))) -> c3(A__SEL(mark(x0), cons(cons(mark(z0), z1), x3)), MARK(x0))
   A__SEL(s(x0), cons(x1, cons(s(z0), x3))) -> c3(A__SEL(mark(x0), cons(s(mark(z0)), x3)), MARK(x0))
   A__SEL(s(x0), cons(x1, cons(0, x3))) -> c3(A__SEL(mark(x0), cons(0, x3)), MARK(x0))
   A__SEL(s(from(z0)), cons(x1, cons(x2, x3))) -> c3(A__SEL(a__from(mark(z0)), cons(mark(x2), x3)), MARK(from(z0)))
   A__SEL(s(sel(z0, z1)), cons(x1, cons(x2, x3))) -> c3(A__SEL(a__sel(mark(z0), mark(z1)), cons(mark(x2), x3)), MARK(sel(z0, z1)))
   A__SEL(s(s(z0)), cons(x1, cons(x2, x3))) -> c3(A__SEL(s(mark(z0)), cons(mark(x2), x3)), MARK(s(z0)))
   A__SEL(s(cons(z0, z1)), cons(x1, cons(x2, x3))) -> c3(MARK(cons(z0, z1)))
   A__SEL(s(0), cons(x1, cons(x2, x3))) -> c3(A__SEL(0, cons(mark(x2), x3)))
   A__SEL(s(from(from(z0))), cons(x1, x2)) -> c3(A__SEL(a__from(a__from(mark(z0))), mark(x2)), MARK(from(from(z0))))
   A__SEL(s(from(sel(z0, z1))), cons(x1, x2)) -> c3(A__SEL(a__from(a__sel(mark(z0), mark(z1))), mark(x2)), MARK(from(sel(z0, z1))))
   A__SEL(s(from(cons(z0, z1))), cons(x1, x2)) -> c3(A__SEL(a__from(cons(mark(z0), z1)), mark(x2)), MARK(from(cons(z0, z1))))
   A__SEL(s(from(s(z0))), cons(x1, x2)) -> c3(A__SEL(a__from(s(mark(z0))), mark(x2)), MARK(from(s(z0))))
   A__SEL(s(from(0)), cons(x1, x2)) -> c3(A__SEL(a__from(0), mark(x2)), MARK(from(0)))
   A__SEL(s(from(x0)), cons(x1, x2)) -> c3(MARK(from(x0)))
   A__SEL(s(from(x0)), cons(x1, s(z0))) -> c3(MARK(from(x0)))
   A__SEL(s(from(x0)), cons(x1, 0)) -> c3(MARK(from(x0)))
   A__SEL(s(sel(x0, from(z0))), cons(x2, x3)) -> c3(A__SEL(a__sel(mark(x0), a__from(mark(z0))), mark(x3)), MARK(sel(x0, from(z0))))
   A__SEL(s(sel(x0, sel(z0, z1))), cons(x2, x3)) -> c3(A__SEL(a__sel(mark(x0), a__sel(mark(z0), mark(z1))), mark(x3)), MARK(sel(x0, sel(z0, z1))))
   A__SEL(s(sel(x0, cons(z0, z1))), cons(x2, x3)) -> c3(A__SEL(a__sel(mark(x0), cons(mark(z0), z1)), mark(x3)), MARK(sel(x0, cons(z0, z1))))
   A__SEL(s(sel(x0, s(z0))), cons(x2, x3)) -> c3(A__SEL(a__sel(mark(x0), s(mark(z0))), mark(x3)), MARK(sel(x0, s(z0))))
   A__SEL(s(sel(x0, 0)), cons(x2, x3)) -> c3(A__SEL(a__sel(mark(x0), 0), mark(x3)), MARK(sel(x0, 0)))
   A__SEL(s(sel(from(z0), x1)), cons(x2, x3)) -> c3(A__SEL(a__sel(a__from(mark(z0)), mark(x1)), mark(x3)), MARK(sel(from(z0), x1)))
   A__SEL(s(sel(sel(z0, z1), x1)), cons(x2, x3)) -> c3(A__SEL(a__sel(a__sel(mark(z0), mark(z1)), mark(x1)), mark(x3)), MARK(sel(sel(z0, z1), x1)))
   A__SEL(s(sel(cons(z0, z1), x1)), cons(x2, x3)) -> c3(A__SEL(a__sel(cons(mark(z0), z1), mark(x1)), mark(x3)), MARK(sel(cons(z0, z1), x1)))
   A__SEL(s(sel(s(z0), x1)), cons(x2, x3)) -> c3(A__SEL(a__sel(s(mark(z0)), mark(x1)), mark(x3)), MARK(sel(s(z0), x1)))
   A__SEL(s(sel(0, x1)), cons(x2, x3)) -> c3(A__SEL(a__sel(0, mark(x1)), mark(x3)), MARK(sel(0, x1)))
   A__SEL(s(sel(x0, x1)), cons(x2, s(z0))) -> c3(MARK(sel(x0, x1)))
   A__SEL(s(sel(x0, x1)), cons(x2, 0)) -> c3(MARK(sel(x0, x1)))
   A__SEL(s(sel(x0, x1)), cons(x2, x3)) -> c3(MARK(sel(x0, x1)))
   A__SEL(s(s(from(z0))), cons(x1, x2)) -> c3(A__SEL(s(a__from(mark(z0))), mark(x2)), MARK(s(from(z0))))
   A__SEL(s(s(sel(z0, z1))), cons(x1, x2)) -> c3(A__SEL(s(a__sel(mark(z0), mark(z1))), mark(x2)), MARK(s(sel(z0, z1))))
   A__SEL(s(s(cons(z0, z1))), cons(x1, x2)) -> c3(A__SEL(s(cons(mark(z0), z1)), mark(x2)), MARK(s(cons(z0, z1))))
   A__SEL(s(s(s(z0))), cons(x1, x2)) -> c3(A__SEL(s(s(mark(z0))), mark(x2)), MARK(s(s(z0))))
   A__SEL(s(s(0)), cons(x1, x2)) -> c3(A__SEL(s(0), mark(x2)), MARK(s(0)))
   A__SEL(s(s(x0)), cons(x1, x2)) -> c3(MARK(s(x0)))
   A__SEL(s(s(x0)), cons(x1, s(z0))) -> c3(MARK(s(x0)))
   A__SEL(s(s(x0)), cons(x1, 0)) -> c3(MARK(s(x0)))
   A__SEL(s(x0), cons(x1, from(x2))) -> c4(A__SEL(mark(x0), cons(mark(mark(x2)), from(s(mark(x2))))), MARK(from(x2)))
   A__SEL(s(x0), cons(x1, from(from(z0)))) -> c4(A__SEL(mark(x0), a__from(a__from(mark(z0)))), MARK(from(from(z0))))
   A__SEL(s(x0), cons(x1, from(sel(z0, z1)))) -> c4(A__SEL(mark(x0), a__from(a__sel(mark(z0), mark(z1)))), MARK(from(sel(z0, z1))))
   A__SEL(s(x0), cons(x1, from(cons(z0, z1)))) -> c4(A__SEL(mark(x0), a__from(cons(mark(z0), z1))), MARK(from(cons(z0, z1))))
   A__SEL(s(x0), cons(x1, from(s(z0)))) -> c4(A__SEL(mark(x0), a__from(s(mark(z0)))), MARK(from(s(z0))))
   A__SEL(s(x0), cons(x1, from(0))) -> c4(A__SEL(mark(x0), a__from(0)), MARK(from(0)))
   A__SEL(s(from(z0)), cons(x1, from(x2))) -> c4(A__SEL(a__from(mark(z0)), a__from(mark(x2))), MARK(from(x2)))
   A__SEL(s(sel(z0, z1)), cons(x1, from(x2))) -> c4(A__SEL(a__sel(mark(z0), mark(z1)), a__from(mark(x2))), MARK(from(x2)))
   A__SEL(s(s(z0)), cons(x1, from(x2))) -> c4(A__SEL(s(mark(z0)), a__from(mark(x2))), MARK(from(x2)))
   A__SEL(s(0), cons(x1, from(x2))) -> c4(A__SEL(0, a__from(mark(x2))), MARK(from(x2)))
   A__SEL(s(x0), cons(x1, from(x2))) -> c4(MARK(from(x2)))
   A__SEL(s(cons(z0, z1)), cons(x1, from(x2))) -> c4(MARK(from(x2)))
   A__SEL(s(x0), cons(x1, sel(x2, from(z0)))) -> c4(A__SEL(mark(x0), a__sel(mark(x2), a__from(mark(z0)))), MARK(sel(x2, from(z0))))
   A__SEL(s(x0), cons(x1, sel(x2, sel(z0, z1)))) -> c4(A__SEL(mark(x0), a__sel(mark(x2), a__sel(mark(z0), mark(z1)))), MARK(sel(x2, sel(z0, z1))))
   A__SEL(s(x0), cons(x1, sel(x2, cons(z0, z1)))) -> c4(A__SEL(mark(x0), a__sel(mark(x2), cons(mark(z0), z1))), MARK(sel(x2, cons(z0, z1))))
   A__SEL(s(x0), cons(x1, sel(x2, s(z0)))) -> c4(A__SEL(mark(x0), a__sel(mark(x2), s(mark(z0)))), MARK(sel(x2, s(z0))))
   A__SEL(s(x0), cons(x1, sel(x2, 0))) -> c4(A__SEL(mark(x0), a__sel(mark(x2), 0)), MARK(sel(x2, 0)))
   A__SEL(s(x0), cons(x1, sel(from(z0), x3))) -> c4(A__SEL(mark(x0), a__sel(a__from(mark(z0)), mark(x3))), MARK(sel(from(z0), x3)))
   A__SEL(s(x0), cons(x1, sel(sel(z0, z1), x3))) -> c4(A__SEL(mark(x0), a__sel(a__sel(mark(z0), mark(z1)), mark(x3))), MARK(sel(sel(z0, z1), x3)))
   A__SEL(s(x0), cons(x1, sel(cons(z0, z1), x3))) -> c4(A__SEL(mark(x0), a__sel(cons(mark(z0), z1), mark(x3))), MARK(sel(cons(z0, z1), x3)))
   A__SEL(s(x0), cons(x1, sel(s(z0), x3))) -> c4(A__SEL(mark(x0), a__sel(s(mark(z0)), mark(x3))), MARK(sel(s(z0), x3)))
   A__SEL(s(x0), cons(x1, sel(0, x3))) -> c4(A__SEL(mark(x0), a__sel(0, mark(x3))), MARK(sel(0, x3)))
   A__SEL(s(from(z0)), cons(x1, sel(x2, x3))) -> c4(A__SEL(a__from(mark(z0)), a__sel(mark(x2), mark(x3))), MARK(sel(x2, x3)))
   A__SEL(s(sel(z0, z1)), cons(x1, sel(x2, x3))) -> c4(A__SEL(a__sel(mark(z0), mark(z1)), a__sel(mark(x2), mark(x3))), MARK(sel(x2, x3)))
   A__SEL(s(s(z0)), cons(x1, sel(x2, x3))) -> c4(A__SEL(s(mark(z0)), a__sel(mark(x2), mark(x3))), MARK(sel(x2, x3)))
   A__SEL(s(0), cons(x1, sel(x2, x3))) -> c4(A__SEL(0, a__sel(mark(x2), mark(x3))), MARK(sel(x2, x3)))
   A__SEL(s(x0), cons(x1, sel(x2, x3))) -> c4(MARK(sel(x2, x3)))
   A__SEL(s(cons(z0, z1)), cons(x1, sel(x2, x3))) -> c4(MARK(sel(x2, x3)))
   A__SEL(s(x0), cons(x1, cons(from(z0), x3))) -> c4(A__SEL(mark(x0), cons(a__from(mark(z0)), x3)), MARK(cons(from(z0), x3)))
   A__SEL(s(x0), cons(x1, cons(sel(z0, z1), x3))) -> c4(A__SEL(mark(x0), cons(a__sel(mark(z0), mark(z1)), x3)), MARK(cons(sel(z0, z1), x3)))
   A__SEL(s(x0), cons(x1, cons(cons(z0, z1), x3))) -> c4(A__SEL(mark(x0), cons(cons(mark(z0), z1), x3)), MARK(cons(cons(z0, z1), x3)))
   A__SEL(s(x0), cons(x1, cons(s(z0), x3))) -> c4(A__SEL(mark(x0), cons(s(mark(z0)), x3)), MARK(cons(s(z0), x3)))
   A__SEL(s(x0), cons(x1, cons(0, x3))) -> c4(A__SEL(mark(x0), cons(0, x3)), MARK(cons(0, x3)))
   A__SEL(s(from(z0)), cons(x1, cons(x2, x3))) -> c4(A__SEL(a__from(mark(z0)), cons(mark(x2), x3)), MARK(cons(x2, x3)))
   A__SEL(s(sel(z0, z1)), cons(x1, cons(x2, x3))) -> c4(A__SEL(a__sel(mark(z0), mark(z1)), cons(mark(x2), x3)), MARK(cons(x2, x3)))
   A__SEL(s(s(z0)), cons(x1, cons(x2, x3))) -> c4(A__SEL(s(mark(z0)), cons(mark(x2), x3)), MARK(cons(x2, x3)))
   A__SEL(s(0), cons(x1, cons(x2, x3))) -> c4(A__SEL(0, cons(mark(x2), x3)), MARK(cons(x2, x3)))
   A__SEL(s(x0), cons(x1, cons(x2, x3))) -> c4(MARK(cons(x2, x3)))
   A__SEL(s(cons(z0, z1)), cons(x1, cons(x2, x3))) -> c4(MARK(cons(x2, x3)))
   A__SEL(s(from(from(z0))), cons(x1, x2)) -> c4(A__SEL(a__from(a__from(mark(z0))), mark(x2)), MARK(x2))
   A__SEL(s(from(sel(z0, z1))), cons(x1, x2)) -> c4(A__SEL(a__from(a__sel(mark(z0), mark(z1))), mark(x2)), MARK(x2))
   A__SEL(s(from(cons(z0, z1))), cons(x1, x2)) -> c4(A__SEL(a__from(cons(mark(z0), z1)), mark(x2)), MARK(x2))
   A__SEL(s(from(s(z0))), cons(x1, x2)) -> c4(A__SEL(a__from(s(mark(z0))), mark(x2)), MARK(x2))
   A__SEL(s(from(0)), cons(x1, x2)) -> c4(A__SEL(a__from(0), mark(x2)), MARK(x2))
   A__SEL(s(from(x0)), cons(x1, s(z0))) -> c4(MARK(s(z0)))
   A__SEL(s(from(x0)), cons(x1, x2)) -> c4(MARK(x2))
   A__SEL(s(sel(x0, from(z0))), cons(x2, x3)) -> c4(A__SEL(a__sel(mark(x0), a__from(mark(z0))), mark(x3)), MARK(x3))
   A__SEL(s(sel(x0, sel(z0, z1))), cons(x2, x3)) -> c4(A__SEL(a__sel(mark(x0), a__sel(mark(z0), mark(z1))), mark(x3)), MARK(x3))
   A__SEL(s(sel(x0, cons(z0, z1))), cons(x2, x3)) -> c4(A__SEL(a__sel(mark(x0), cons(mark(z0), z1)), mark(x3)), MARK(x3))
   A__SEL(s(sel(x0, s(z0))), cons(x2, x3)) -> c4(A__SEL(a__sel(mark(x0), s(mark(z0))), mark(x3)), MARK(x3))
   A__SEL(s(sel(x0, 0)), cons(x2, x3)) -> c4(A__SEL(a__sel(mark(x0), 0), mark(x3)), MARK(x3))
   A__SEL(s(sel(from(z0), x1)), cons(x2, x3)) -> c4(A__SEL(a__sel(a__from(mark(z0)), mark(x1)), mark(x3)), MARK(x3))
   A__SEL(s(sel(sel(z0, z1), x1)), cons(x2, x3)) -> c4(A__SEL(a__sel(a__sel(mark(z0), mark(z1)), mark(x1)), mark(x3)), MARK(x3))
   A__SEL(s(sel(cons(z0, z1), x1)), cons(x2, x3)) -> c4(A__SEL(a__sel(cons(mark(z0), z1), mark(x1)), mark(x3)), MARK(x3))
   A__SEL(s(sel(s(z0), x1)), cons(x2, x3)) -> c4(A__SEL(a__sel(s(mark(z0)), mark(x1)), mark(x3)), MARK(x3))
   A__SEL(s(sel(0, x1)), cons(x2, x3)) -> c4(A__SEL(a__sel(0, mark(x1)), mark(x3)), MARK(x3))
   A__SEL(s(sel(x0, x1)), cons(x2, s(z0))) -> c4(MARK(s(z0)))
   A__SEL(s(sel(x0, x1)), cons(x2, x3)) -> c4(MARK(x3))
   A__SEL(s(s(from(z0))), cons(x1, x2)) -> c4(A__SEL(s(a__from(mark(z0))), mark(x2)), MARK(x2))
   A__SEL(s(s(sel(z0, z1))), cons(x1, x2)) -> c4(A__SEL(s(a__sel(mark(z0), mark(z1))), mark(x2)), MARK(x2))
   A__SEL(s(s(cons(z0, z1))), cons(x1, x2)) -> c4(A__SEL(s(cons(mark(z0), z1)), mark(x2)), MARK(x2))
   A__SEL(s(s(s(z0))), cons(x1, x2)) -> c4(A__SEL(s(s(mark(z0))), mark(x2)), MARK(x2))
   A__SEL(s(s(0)), cons(x1, x2)) -> c4(A__SEL(s(0), mark(x2)), MARK(x2))
   A__SEL(s(s(x0)), cons(x1, s(z0))) -> c4(MARK(s(z0)))
   A__SEL(s(0), cons(x0, s(z0))) -> c4(MARK(s(z0)))
K tuples:none
Defined Rule Symbols:   a__from_1, a__sel_2, mark_1

Defined Pair Symbols:   A__FROM_1, A__SEL_2, MARK_1

Compound Symbols:   c_1, c2_1, c6_2, c9_1, c10_1, c3_1, c4_1, c7_2, c7_1, c8_2, c8_1, c3_2, c4_2


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

(141) CdtNarrowingProof (BOTH BOUNDS(ID, ID))
Use narrowing to replace MARK(sel(x0, from(z0))) -> c7(A__SEL(mark(x0), a__from(mark(z0))), MARK(x0)) by 
   MARK(sel(x0, from(x1))) -> c7(A__SEL(mark(x0), cons(mark(mark(x1)), from(s(mark(x1))))), MARK(x0))
   MARK(sel(x0, from(x1))) -> c7(A__SEL(mark(x0), from(mark(x1))), MARK(x0))
   MARK(sel(x0, from(from(z0)))) -> c7(A__SEL(mark(x0), a__from(a__from(mark(z0)))), MARK(x0))
   MARK(sel(x0, from(sel(z0, z1)))) -> c7(A__SEL(mark(x0), a__from(a__sel(mark(z0), mark(z1)))), MARK(x0))
   MARK(sel(x0, from(cons(z0, z1)))) -> c7(A__SEL(mark(x0), a__from(cons(mark(z0), z1))), MARK(x0))
   MARK(sel(x0, from(s(z0)))) -> c7(A__SEL(mark(x0), a__from(s(mark(z0)))), MARK(x0))
   MARK(sel(x0, from(0))) -> c7(A__SEL(mark(x0), a__from(0)), MARK(x0))
   MARK(sel(from(z0), from(x1))) -> c7(A__SEL(a__from(mark(z0)), a__from(mark(x1))), MARK(from(z0)))
   MARK(sel(sel(z0, z1), from(x1))) -> c7(A__SEL(a__sel(mark(z0), mark(z1)), a__from(mark(x1))), MARK(sel(z0, z1)))
   MARK(sel(cons(z0, z1), from(x1))) -> c7(A__SEL(cons(mark(z0), z1), a__from(mark(x1))), MARK(cons(z0, z1)))
   MARK(sel(s(z0), from(x1))) -> c7(A__SEL(s(mark(z0)), a__from(mark(x1))), MARK(s(z0)))
   MARK(sel(0, from(x1))) -> c7(A__SEL(0, a__from(mark(x1))), MARK(0))

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

(142)
Obligation:
Complexity Dependency Tuples Problem

Rules:
   a__from(z0) -> cons(mark(z0), from(s(z0)))
   a__from(z0) -> from(z0)
   a__sel(0, cons(z0, z1)) -> mark(z0)
   a__sel(s(z0), cons(z1, z2)) -> a__sel(mark(z0), mark(z2))
   a__sel(z0, z1) -> sel(z0, z1)
   mark(from(z0)) -> a__from(mark(z0))
   mark(sel(z0, z1)) -> a__sel(mark(z0), mark(z1))
   mark(cons(z0, z1)) -> cons(mark(z0), z1)
   mark(s(z0)) -> s(mark(z0))
   mark(0) -> 0
Tuples:
   A__FROM(z0) -> c(MARK(z0))
   A__SEL(0, cons(z0, z1)) -> c2(MARK(z0))
   MARK(from(z0)) -> c6(A__FROM(mark(z0)), MARK(z0))
   MARK(cons(z0, z1)) -> c9(MARK(z0))
   MARK(s(z0)) -> c10(MARK(z0))
   A__SEL(s(x0), cons(x1, s(z0))) -> c3(MARK(x0))
   A__SEL(s(x0), cons(x1, 0)) -> c3(MARK(x0))
   A__SEL(s(cons(z0, z1)), cons(x1, x2)) -> c3(MARK(cons(z0, z1)))
   A__SEL(s(x0), cons(x1, s(z0))) -> c4(MARK(s(z0)))
   A__SEL(s(cons(z0, z1)), cons(x1, x2)) -> c4(MARK(x2))
   MARK(sel(x0, sel(z0, z1))) -> c7(A__SEL(mark(x0), a__sel(mark(z0), mark(z1))), MARK(x0))
   MARK(sel(x0, cons(z0, z1))) -> c7(A__SEL(mark(x0), cons(mark(z0), z1)), MARK(x0))
   MARK(sel(from(z0), x1)) -> c7(A__SEL(a__from(mark(z0)), mark(x1)), MARK(from(z0)))
   MARK(sel(sel(z0, z1), x1)) -> c7(A__SEL(a__sel(mark(z0), mark(z1)), mark(x1)), MARK(sel(z0, z1)))
   MARK(sel(s(z0), x1)) -> c7(A__SEL(s(mark(z0)), mark(x1)), MARK(s(z0)))
   MARK(sel(x0, s(z0))) -> c7(MARK(x0))
   MARK(sel(x0, 0)) -> c7(MARK(x0))
   MARK(sel(cons(z0, z1), x1)) -> c7(MARK(cons(z0, z1)))
   MARK(sel(0, x1)) -> c7(A__SEL(0, mark(x1)))
   MARK(sel(x0, from(z0))) -> c8(A__SEL(mark(x0), a__from(mark(z0))), MARK(from(z0)))
   MARK(sel(x0, sel(z0, z1))) -> c8(A__SEL(mark(x0), a__sel(mark(z0), mark(z1))), MARK(sel(z0, z1)))
   MARK(sel(x0, cons(z0, z1))) -> c8(A__SEL(mark(x0), cons(mark(z0), z1)), MARK(cons(z0, z1)))
   MARK(sel(from(z0), x1)) -> c8(A__SEL(a__from(mark(z0)), mark(x1)), MARK(x1))
   MARK(sel(sel(z0, z1), x1)) -> c8(A__SEL(a__sel(mark(z0), mark(z1)), mark(x1)), MARK(x1))
   MARK(sel(s(z0), x1)) -> c8(A__SEL(s(mark(z0)), mark(x1)), MARK(x1))
   MARK(sel(0, x1)) -> c8(A__SEL(0, mark(x1)), MARK(x1))
   MARK(sel(x0, s(z0))) -> c8(MARK(s(z0)))
   MARK(sel(cons(z0, z1), x1)) -> c8(MARK(x1))
   A__SEL(s(x0), cons(x1, from(x2))) -> c3(A__SEL(mark(x0), cons(mark(mark(x2)), from(s(mark(x2))))), MARK(x0))
   A__SEL(s(x0), cons(x1, from(from(z0)))) -> c3(A__SEL(mark(x0), a__from(a__from(mark(z0)))), MARK(x0))
   A__SEL(s(x0), cons(x1, from(sel(z0, z1)))) -> c3(A__SEL(mark(x0), a__from(a__sel(mark(z0), mark(z1)))), MARK(x0))
   A__SEL(s(x0), cons(x1, from(cons(z0, z1)))) -> c3(A__SEL(mark(x0), a__from(cons(mark(z0), z1))), MARK(x0))
   A__SEL(s(x0), cons(x1, from(s(z0)))) -> c3(A__SEL(mark(x0), a__from(s(mark(z0)))), MARK(x0))
   A__SEL(s(x0), cons(x1, from(0))) -> c3(A__SEL(mark(x0), a__from(0)), MARK(x0))
   A__SEL(s(from(z0)), cons(x1, from(x2))) -> c3(A__SEL(a__from(mark(z0)), a__from(mark(x2))), MARK(from(z0)))
   A__SEL(s(sel(z0, z1)), cons(x1, from(x2))) -> c3(A__SEL(a__sel(mark(z0), mark(z1)), a__from(mark(x2))), MARK(sel(z0, z1)))
   A__SEL(s(s(z0)), cons(x1, from(x2))) -> c3(A__SEL(s(mark(z0)), a__from(mark(x2))), MARK(s(z0)))
   A__SEL(s(x0), cons(x1, from(x2))) -> c3(MARK(x0))
   A__SEL(s(cons(z0, z1)), cons(x1, from(x2))) -> c3(MARK(cons(z0, z1)))
   A__SEL(s(0), cons(x1, from(x2))) -> c3(A__SEL(0, a__from(mark(x2))))
   A__SEL(s(x0), cons(x1, sel(x2, from(z0)))) -> c3(A__SEL(mark(x0), a__sel(mark(x2), a__from(mark(z0)))), MARK(x0))
   A__SEL(s(x0), cons(x1, sel(x2, sel(z0, z1)))) -> c3(A__SEL(mark(x0), a__sel(mark(x2), a__sel(mark(z0), mark(z1)))), MARK(x0))
   A__SEL(s(x0), cons(x1, sel(x2, cons(z0, z1)))) -> c3(A__SEL(mark(x0), a__sel(mark(x2), cons(mark(z0), z1))), MARK(x0))
   A__SEL(s(x0), cons(x1, sel(x2, s(z0)))) -> c3(A__SEL(mark(x0), a__sel(mark(x2), s(mark(z0)))), MARK(x0))
   A__SEL(s(x0), cons(x1, sel(x2, 0))) -> c3(A__SEL(mark(x0), a__sel(mark(x2), 0)), MARK(x0))
   A__SEL(s(x0), cons(x1, sel(from(z0), x3))) -> c3(A__SEL(mark(x0), a__sel(a__from(mark(z0)), mark(x3))), MARK(x0))
   A__SEL(s(x0), cons(x1, sel(sel(z0, z1), x3))) -> c3(A__SEL(mark(x0), a__sel(a__sel(mark(z0), mark(z1)), mark(x3))), MARK(x0))
   A__SEL(s(x0), cons(x1, sel(cons(z0, z1), x3))) -> c3(A__SEL(mark(x0), a__sel(cons(mark(z0), z1), mark(x3))), MARK(x0))
   A__SEL(s(x0), cons(x1, sel(s(z0), x3))) -> c3(A__SEL(mark(x0), a__sel(s(mark(z0)), mark(x3))), MARK(x0))
   A__SEL(s(x0), cons(x1, sel(0, x3))) -> c3(A__SEL(mark(x0), a__sel(0, mark(x3))), MARK(x0))
   A__SEL(s(from(z0)), cons(x1, sel(x2, x3))) -> c3(A__SEL(a__from(mark(z0)), a__sel(mark(x2), mark(x3))), MARK(from(z0)))
   A__SEL(s(sel(z0, z1)), cons(x1, sel(x2, x3))) -> c3(A__SEL(a__sel(mark(z0), mark(z1)), a__sel(mark(x2), mark(x3))), MARK(sel(z0, z1)))
   A__SEL(s(s(z0)), cons(x1, sel(x2, x3))) -> c3(A__SEL(s(mark(z0)), a__sel(mark(x2), mark(x3))), MARK(s(z0)))
   A__SEL(s(x0), cons(x1, sel(x2, x3))) -> c3(MARK(x0))
   A__SEL(s(cons(z0, z1)), cons(x1, sel(x2, x3))) -> c3(MARK(cons(z0, z1)))
   A__SEL(s(0), cons(x1, sel(x2, x3))) -> c3(A__SEL(0, a__sel(mark(x2), mark(x3))))
   A__SEL(s(x0), cons(x1, cons(from(z0), x3))) -> c3(A__SEL(mark(x0), cons(a__from(mark(z0)), x3)), MARK(x0))
   A__SEL(s(x0), cons(x1, cons(sel(z0, z1), x3))) -> c3(A__SEL(mark(x0), cons(a__sel(mark(z0), mark(z1)), x3)), MARK(x0))
   A__SEL(s(x0), cons(x1, cons(cons(z0, z1), x3))) -> c3(A__SEL(mark(x0), cons(cons(mark(z0), z1), x3)), MARK(x0))
   A__SEL(s(x0), cons(x1, cons(s(z0), x3))) -> c3(A__SEL(mark(x0), cons(s(mark(z0)), x3)), MARK(x0))
   A__SEL(s(x0), cons(x1, cons(0, x3))) -> c3(A__SEL(mark(x0), cons(0, x3)), MARK(x0))
   A__SEL(s(from(z0)), cons(x1, cons(x2, x3))) -> c3(A__SEL(a__from(mark(z0)), cons(mark(x2), x3)), MARK(from(z0)))
   A__SEL(s(sel(z0, z1)), cons(x1, cons(x2, x3))) -> c3(A__SEL(a__sel(mark(z0), mark(z1)), cons(mark(x2), x3)), MARK(sel(z0, z1)))
   A__SEL(s(s(z0)), cons(x1, cons(x2, x3))) -> c3(A__SEL(s(mark(z0)), cons(mark(x2), x3)), MARK(s(z0)))
   A__SEL(s(cons(z0, z1)), cons(x1, cons(x2, x3))) -> c3(MARK(cons(z0, z1)))
   A__SEL(s(0), cons(x1, cons(x2, x3))) -> c3(A__SEL(0, cons(mark(x2), x3)))
   A__SEL(s(from(from(z0))), cons(x1, x2)) -> c3(A__SEL(a__from(a__from(mark(z0))), mark(x2)), MARK(from(from(z0))))
   A__SEL(s(from(sel(z0, z1))), cons(x1, x2)) -> c3(A__SEL(a__from(a__sel(mark(z0), mark(z1))), mark(x2)), MARK(from(sel(z0, z1))))
   A__SEL(s(from(cons(z0, z1))), cons(x1, x2)) -> c3(A__SEL(a__from(cons(mark(z0), z1)), mark(x2)), MARK(from(cons(z0, z1))))
   A__SEL(s(from(s(z0))), cons(x1, x2)) -> c3(A__SEL(a__from(s(mark(z0))), mark(x2)), MARK(from(s(z0))))
   A__SEL(s(from(0)), cons(x1, x2)) -> c3(A__SEL(a__from(0), mark(x2)), MARK(from(0)))
   A__SEL(s(from(x0)), cons(x1, x2)) -> c3(MARK(from(x0)))
   A__SEL(s(from(x0)), cons(x1, s(z0))) -> c3(MARK(from(x0)))
   A__SEL(s(from(x0)), cons(x1, 0)) -> c3(MARK(from(x0)))
   A__SEL(s(sel(x0, from(z0))), cons(x2, x3)) -> c3(A__SEL(a__sel(mark(x0), a__from(mark(z0))), mark(x3)), MARK(sel(x0, from(z0))))
   A__SEL(s(sel(x0, sel(z0, z1))), cons(x2, x3)) -> c3(A__SEL(a__sel(mark(x0), a__sel(mark(z0), mark(z1))), mark(x3)), MARK(sel(x0, sel(z0, z1))))
   A__SEL(s(sel(x0, cons(z0, z1))), cons(x2, x3)) -> c3(A__SEL(a__sel(mark(x0), cons(mark(z0), z1)), mark(x3)), MARK(sel(x0, cons(z0, z1))))
   A__SEL(s(sel(x0, s(z0))), cons(x2, x3)) -> c3(A__SEL(a__sel(mark(x0), s(mark(z0))), mark(x3)), MARK(sel(x0, s(z0))))
   A__SEL(s(sel(x0, 0)), cons(x2, x3)) -> c3(A__SEL(a__sel(mark(x0), 0), mark(x3)), MARK(sel(x0, 0)))
   A__SEL(s(sel(from(z0), x1)), cons(x2, x3)) -> c3(A__SEL(a__sel(a__from(mark(z0)), mark(x1)), mark(x3)), MARK(sel(from(z0), x1)))
   A__SEL(s(sel(sel(z0, z1), x1)), cons(x2, x3)) -> c3(A__SEL(a__sel(a__sel(mark(z0), mark(z1)), mark(x1)), mark(x3)), MARK(sel(sel(z0, z1), x1)))
   A__SEL(s(sel(cons(z0, z1), x1)), cons(x2, x3)) -> c3(A__SEL(a__sel(cons(mark(z0), z1), mark(x1)), mark(x3)), MARK(sel(cons(z0, z1), x1)))
   A__SEL(s(sel(s(z0), x1)), cons(x2, x3)) -> c3(A__SEL(a__sel(s(mark(z0)), mark(x1)), mark(x3)), MARK(sel(s(z0), x1)))
   A__SEL(s(sel(0, x1)), cons(x2, x3)) -> c3(A__SEL(a__sel(0, mark(x1)), mark(x3)), MARK(sel(0, x1)))
   A__SEL(s(sel(x0, x1)), cons(x2, s(z0))) -> c3(MARK(sel(x0, x1)))
   A__SEL(s(sel(x0, x1)), cons(x2, 0)) -> c3(MARK(sel(x0, x1)))
   A__SEL(s(sel(x0, x1)), cons(x2, x3)) -> c3(MARK(sel(x0, x1)))
   A__SEL(s(s(from(z0))), cons(x1, x2)) -> c3(A__SEL(s(a__from(mark(z0))), mark(x2)), MARK(s(from(z0))))
   A__SEL(s(s(sel(z0, z1))), cons(x1, x2)) -> c3(A__SEL(s(a__sel(mark(z0), mark(z1))), mark(x2)), MARK(s(sel(z0, z1))))
   A__SEL(s(s(cons(z0, z1))), cons(x1, x2)) -> c3(A__SEL(s(cons(mark(z0), z1)), mark(x2)), MARK(s(cons(z0, z1))))
   A__SEL(s(s(s(z0))), cons(x1, x2)) -> c3(A__SEL(s(s(mark(z0))), mark(x2)), MARK(s(s(z0))))
   A__SEL(s(s(0)), cons(x1, x2)) -> c3(A__SEL(s(0), mark(x2)), MARK(s(0)))
   A__SEL(s(s(x0)), cons(x1, x2)) -> c3(MARK(s(x0)))
   A__SEL(s(s(x0)), cons(x1, s(z0))) -> c3(MARK(s(x0)))
   A__SEL(s(s(x0)), cons(x1, 0)) -> c3(MARK(s(x0)))
   A__SEL(s(x0), cons(x1, from(x2))) -> c4(A__SEL(mark(x0), cons(mark(mark(x2)), from(s(mark(x2))))), MARK(from(x2)))
   A__SEL(s(x0), cons(x1, from(from(z0)))) -> c4(A__SEL(mark(x0), a__from(a__from(mark(z0)))), MARK(from(from(z0))))
   A__SEL(s(x0), cons(x1, from(sel(z0, z1)))) -> c4(A__SEL(mark(x0), a__from(a__sel(mark(z0), mark(z1)))), MARK(from(sel(z0, z1))))
   A__SEL(s(x0), cons(x1, from(cons(z0, z1)))) -> c4(A__SEL(mark(x0), a__from(cons(mark(z0), z1))), MARK(from(cons(z0, z1))))
   A__SEL(s(x0), cons(x1, from(s(z0)))) -> c4(A__SEL(mark(x0), a__from(s(mark(z0)))), MARK(from(s(z0))))
   A__SEL(s(x0), cons(x1, from(0))) -> c4(A__SEL(mark(x0), a__from(0)), MARK(from(0)))
   A__SEL(s(from(z0)), cons(x1, from(x2))) -> c4(A__SEL(a__from(mark(z0)), a__from(mark(x2))), MARK(from(x2)))
   A__SEL(s(sel(z0, z1)), cons(x1, from(x2))) -> c4(A__SEL(a__sel(mark(z0), mark(z1)), a__from(mark(x2))), MARK(from(x2)))
   A__SEL(s(s(z0)), cons(x1, from(x2))) -> c4(A__SEL(s(mark(z0)), a__from(mark(x2))), MARK(from(x2)))
   A__SEL(s(0), cons(x1, from(x2))) -> c4(A__SEL(0, a__from(mark(x2))), MARK(from(x2)))
   A__SEL(s(x0), cons(x1, from(x2))) -> c4(MARK(from(x2)))
   A__SEL(s(cons(z0, z1)), cons(x1, from(x2))) -> c4(MARK(from(x2)))
   A__SEL(s(x0), cons(x1, sel(x2, from(z0)))) -> c4(A__SEL(mark(x0), a__sel(mark(x2), a__from(mark(z0)))), MARK(sel(x2, from(z0))))
   A__SEL(s(x0), cons(x1, sel(x2, sel(z0, z1)))) -> c4(A__SEL(mark(x0), a__sel(mark(x2), a__sel(mark(z0), mark(z1)))), MARK(sel(x2, sel(z0, z1))))
   A__SEL(s(x0), cons(x1, sel(x2, cons(z0, z1)))) -> c4(A__SEL(mark(x0), a__sel(mark(x2), cons(mark(z0), z1))), MARK(sel(x2, cons(z0, z1))))
   A__SEL(s(x0), cons(x1, sel(x2, s(z0)))) -> c4(A__SEL(mark(x0), a__sel(mark(x2), s(mark(z0)))), MARK(sel(x2, s(z0))))
   A__SEL(s(x0), cons(x1, sel(x2, 0))) -> c4(A__SEL(mark(x0), a__sel(mark(x2), 0)), MARK(sel(x2, 0)))
   A__SEL(s(x0), cons(x1, sel(from(z0), x3))) -> c4(A__SEL(mark(x0), a__sel(a__from(mark(z0)), mark(x3))), MARK(sel(from(z0), x3)))
   A__SEL(s(x0), cons(x1, sel(sel(z0, z1), x3))) -> c4(A__SEL(mark(x0), a__sel(a__sel(mark(z0), mark(z1)), mark(x3))), MARK(sel(sel(z0, z1), x3)))
   A__SEL(s(x0), cons(x1, sel(cons(z0, z1), x3))) -> c4(A__SEL(mark(x0), a__sel(cons(mark(z0), z1), mark(x3))), MARK(sel(cons(z0, z1), x3)))
   A__SEL(s(x0), cons(x1, sel(s(z0), x3))) -> c4(A__SEL(mark(x0), a__sel(s(mark(z0)), mark(x3))), MARK(sel(s(z0), x3)))
   A__SEL(s(x0), cons(x1, sel(0, x3))) -> c4(A__SEL(mark(x0), a__sel(0, mark(x3))), MARK(sel(0, x3)))
   A__SEL(s(from(z0)), cons(x1, sel(x2, x3))) -> c4(A__SEL(a__from(mark(z0)), a__sel(mark(x2), mark(x3))), MARK(sel(x2, x3)))
   A__SEL(s(sel(z0, z1)), cons(x1, sel(x2, x3))) -> c4(A__SEL(a__sel(mark(z0), mark(z1)), a__sel(mark(x2), mark(x3))), MARK(sel(x2, x3)))
   A__SEL(s(s(z0)), cons(x1, sel(x2, x3))) -> c4(A__SEL(s(mark(z0)), a__sel(mark(x2), mark(x3))), MARK(sel(x2, x3)))
   A__SEL(s(0), cons(x1, sel(x2, x3))) -> c4(A__SEL(0, a__sel(mark(x2), mark(x3))), MARK(sel(x2, x3)))
   A__SEL(s(x0), cons(x1, sel(x2, x3))) -> c4(MARK(sel(x2, x3)))
   A__SEL(s(cons(z0, z1)), cons(x1, sel(x2, x3))) -> c4(MARK(sel(x2, x3)))
   A__SEL(s(x0), cons(x1, cons(from(z0), x3))) -> c4(A__SEL(mark(x0), cons(a__from(mark(z0)), x3)), MARK(cons(from(z0), x3)))
   A__SEL(s(x0), cons(x1, cons(sel(z0, z1), x3))) -> c4(A__SEL(mark(x0), cons(a__sel(mark(z0), mark(z1)), x3)), MARK(cons(sel(z0, z1), x3)))
   A__SEL(s(x0), cons(x1, cons(cons(z0, z1), x3))) -> c4(A__SEL(mark(x0), cons(cons(mark(z0), z1), x3)), MARK(cons(cons(z0, z1), x3)))
   A__SEL(s(x0), cons(x1, cons(s(z0), x3))) -> c4(A__SEL(mark(x0), cons(s(mark(z0)), x3)), MARK(cons(s(z0), x3)))
   A__SEL(s(x0), cons(x1, cons(0, x3))) -> c4(A__SEL(mark(x0), cons(0, x3)), MARK(cons(0, x3)))
   A__SEL(s(from(z0)), cons(x1, cons(x2, x3))) -> c4(A__SEL(a__from(mark(z0)), cons(mark(x2), x3)), MARK(cons(x2, x3)))
   A__SEL(s(sel(z0, z1)), cons(x1, cons(x2, x3))) -> c4(A__SEL(a__sel(mark(z0), mark(z1)), cons(mark(x2), x3)), MARK(cons(x2, x3)))
   A__SEL(s(s(z0)), cons(x1, cons(x2, x3))) -> c4(A__SEL(s(mark(z0)), cons(mark(x2), x3)), MARK(cons(x2, x3)))
   A__SEL(s(0), cons(x1, cons(x2, x3))) -> c4(A__SEL(0, cons(mark(x2), x3)), MARK(cons(x2, x3)))
   A__SEL(s(x0), cons(x1, cons(x2, x3))) -> c4(MARK(cons(x2, x3)))
   A__SEL(s(cons(z0, z1)), cons(x1, cons(x2, x3))) -> c4(MARK(cons(x2, x3)))
   A__SEL(s(from(from(z0))), cons(x1, x2)) -> c4(A__SEL(a__from(a__from(mark(z0))), mark(x2)), MARK(x2))
   A__SEL(s(from(sel(z0, z1))), cons(x1, x2)) -> c4(A__SEL(a__from(a__sel(mark(z0), mark(z1))), mark(x2)), MARK(x2))
   A__SEL(s(from(cons(z0, z1))), cons(x1, x2)) -> c4(A__SEL(a__from(cons(mark(z0), z1)), mark(x2)), MARK(x2))
   A__SEL(s(from(s(z0))), cons(x1, x2)) -> c4(A__SEL(a__from(s(mark(z0))), mark(x2)), MARK(x2))
   A__SEL(s(from(0)), cons(x1, x2)) -> c4(A__SEL(a__from(0), mark(x2)), MARK(x2))
   A__SEL(s(from(x0)), cons(x1, s(z0))) -> c4(MARK(s(z0)))
   A__SEL(s(from(x0)), cons(x1, x2)) -> c4(MARK(x2))
   A__SEL(s(sel(x0, from(z0))), cons(x2, x3)) -> c4(A__SEL(a__sel(mark(x0), a__from(mark(z0))), mark(x3)), MARK(x3))
   A__SEL(s(sel(x0, sel(z0, z1))), cons(x2, x3)) -> c4(A__SEL(a__sel(mark(x0), a__sel(mark(z0), mark(z1))), mark(x3)), MARK(x3))
   A__SEL(s(sel(x0, cons(z0, z1))), cons(x2, x3)) -> c4(A__SEL(a__sel(mark(x0), cons(mark(z0), z1)), mark(x3)), MARK(x3))
   A__SEL(s(sel(x0, s(z0))), cons(x2, x3)) -> c4(A__SEL(a__sel(mark(x0), s(mark(z0))), mark(x3)), MARK(x3))
   A__SEL(s(sel(x0, 0)), cons(x2, x3)) -> c4(A__SEL(a__sel(mark(x0), 0), mark(x3)), MARK(x3))
   A__SEL(s(sel(from(z0), x1)), cons(x2, x3)) -> c4(A__SEL(a__sel(a__from(mark(z0)), mark(x1)), mark(x3)), MARK(x3))
   A__SEL(s(sel(sel(z0, z1), x1)), cons(x2, x3)) -> c4(A__SEL(a__sel(a__sel(mark(z0), mark(z1)), mark(x1)), mark(x3)), MARK(x3))
   A__SEL(s(sel(cons(z0, z1), x1)), cons(x2, x3)) -> c4(A__SEL(a__sel(cons(mark(z0), z1), mark(x1)), mark(x3)), MARK(x3))
   A__SEL(s(sel(s(z0), x1)), cons(x2, x3)) -> c4(A__SEL(a__sel(s(mark(z0)), mark(x1)), mark(x3)), MARK(x3))
   A__SEL(s(sel(0, x1)), cons(x2, x3)) -> c4(A__SEL(a__sel(0, mark(x1)), mark(x3)), MARK(x3))
   A__SEL(s(sel(x0, x1)), cons(x2, s(z0))) -> c4(MARK(s(z0)))
   A__SEL(s(sel(x0, x1)), cons(x2, x3)) -> c4(MARK(x3))
   A__SEL(s(s(from(z0))), cons(x1, x2)) -> c4(A__SEL(s(a__from(mark(z0))), mark(x2)), MARK(x2))
   A__SEL(s(s(sel(z0, z1))), cons(x1, x2)) -> c4(A__SEL(s(a__sel(mark(z0), mark(z1))), mark(x2)), MARK(x2))
   A__SEL(s(s(cons(z0, z1))), cons(x1, x2)) -> c4(A__SEL(s(cons(mark(z0), z1)), mark(x2)), MARK(x2))
   A__SEL(s(s(s(z0))), cons(x1, x2)) -> c4(A__SEL(s(s(mark(z0))), mark(x2)), MARK(x2))
   A__SEL(s(s(0)), cons(x1, x2)) -> c4(A__SEL(s(0), mark(x2)), MARK(x2))
   A__SEL(s(s(x0)), cons(x1, s(z0))) -> c4(MARK(s(z0)))
   A__SEL(s(0), cons(x0, s(z0))) -> c4(MARK(s(z0)))
   MARK(sel(x0, from(x1))) -> c7(A__SEL(mark(x0), cons(mark(mark(x1)), from(s(mark(x1))))), MARK(x0))
   MARK(sel(x0, from(x1))) -> c7(A__SEL(mark(x0), from(mark(x1))), MARK(x0))
   MARK(sel(x0, from(from(z0)))) -> c7(A__SEL(mark(x0), a__from(a__from(mark(z0)))), MARK(x0))
   MARK(sel(x0, from(sel(z0, z1)))) -> c7(A__SEL(mark(x0), a__from(a__sel(mark(z0), mark(z1)))), MARK(x0))
   MARK(sel(x0, from(cons(z0, z1)))) -> c7(A__SEL(mark(x0), a__from(cons(mark(z0), z1))), MARK(x0))
   MARK(sel(x0, from(s(z0)))) -> c7(A__SEL(mark(x0), a__from(s(mark(z0)))), MARK(x0))
   MARK(sel(x0, from(0))) -> c7(A__SEL(mark(x0), a__from(0)), MARK(x0))
   MARK(sel(from(z0), from(x1))) -> c7(A__SEL(a__from(mark(z0)), a__from(mark(x1))), MARK(from(z0)))
   MARK(sel(sel(z0, z1), from(x1))) -> c7(A__SEL(a__sel(mark(z0), mark(z1)), a__from(mark(x1))), MARK(sel(z0, z1)))
   MARK(sel(cons(z0, z1), from(x1))) -> c7(A__SEL(cons(mark(z0), z1), a__from(mark(x1))), MARK(cons(z0, z1)))
   MARK(sel(s(z0), from(x1))) -> c7(A__SEL(s(mark(z0)), a__from(mark(x1))), MARK(s(z0)))
   MARK(sel(0, from(x1))) -> c7(A__SEL(0, a__from(mark(x1))), MARK(0))
S tuples:
   A__FROM(z0) -> c(MARK(z0))
   A__SEL(0, cons(z0, z1)) -> c2(MARK(z0))
   MARK(from(z0)) -> c6(A__FROM(mark(z0)), MARK(z0))
   MARK(cons(z0, z1)) -> c9(MARK(z0))
   MARK(s(z0)) -> c10(MARK(z0))
   A__SEL(s(x0), cons(x1, s(z0))) -> c3(MARK(x0))
   A__SEL(s(x0), cons(x1, 0)) -> c3(MARK(x0))
   A__SEL(s(cons(z0, z1)), cons(x1, x2)) -> c3(MARK(cons(z0, z1)))
   A__SEL(s(x0), cons(x1, s(z0))) -> c4(MARK(s(z0)))
   A__SEL(s(cons(z0, z1)), cons(x1, x2)) -> c4(MARK(x2))
   MARK(sel(x0, sel(z0, z1))) -> c7(A__SEL(mark(x0), a__sel(mark(z0), mark(z1))), MARK(x0))
   MARK(sel(x0, cons(z0, z1))) -> c7(A__SEL(mark(x0), cons(mark(z0), z1)), MARK(x0))
   MARK(sel(from(z0), x1)) -> c7(A__SEL(a__from(mark(z0)), mark(x1)), MARK(from(z0)))
   MARK(sel(sel(z0, z1), x1)) -> c7(A__SEL(a__sel(mark(z0), mark(z1)), mark(x1)), MARK(sel(z0, z1)))
   MARK(sel(s(z0), x1)) -> c7(A__SEL(s(mark(z0)), mark(x1)), MARK(s(z0)))
   MARK(sel(x0, s(z0))) -> c7(MARK(x0))
   MARK(sel(x0, 0)) -> c7(MARK(x0))
   MARK(sel(cons(z0, z1), x1)) -> c7(MARK(cons(z0, z1)))
   MARK(sel(0, x1)) -> c7(A__SEL(0, mark(x1)))
   MARK(sel(x0, from(z0))) -> c8(A__SEL(mark(x0), a__from(mark(z0))), MARK(from(z0)))
   MARK(sel(x0, sel(z0, z1))) -> c8(A__SEL(mark(x0), a__sel(mark(z0), mark(z1))), MARK(sel(z0, z1)))
   MARK(sel(x0, cons(z0, z1))) -> c8(A__SEL(mark(x0), cons(mark(z0), z1)), MARK(cons(z0, z1)))
   MARK(sel(from(z0), x1)) -> c8(A__SEL(a__from(mark(z0)), mark(x1)), MARK(x1))
   MARK(sel(sel(z0, z1), x1)) -> c8(A__SEL(a__sel(mark(z0), mark(z1)), mark(x1)), MARK(x1))
   MARK(sel(s(z0), x1)) -> c8(A__SEL(s(mark(z0)), mark(x1)), MARK(x1))
   MARK(sel(0, x1)) -> c8(A__SEL(0, mark(x1)), MARK(x1))
   MARK(sel(x0, s(z0))) -> c8(MARK(s(z0)))
   MARK(sel(cons(z0, z1), x1)) -> c8(MARK(x1))
   A__SEL(s(x0), cons(x1, from(x2))) -> c3(A__SEL(mark(x0), cons(mark(mark(x2)), from(s(mark(x2))))), MARK(x0))
   A__SEL(s(x0), cons(x1, from(from(z0)))) -> c3(A__SEL(mark(x0), a__from(a__from(mark(z0)))), MARK(x0))
   A__SEL(s(x0), cons(x1, from(sel(z0, z1)))) -> c3(A__SEL(mark(x0), a__from(a__sel(mark(z0), mark(z1)))), MARK(x0))
   A__SEL(s(x0), cons(x1, from(cons(z0, z1)))) -> c3(A__SEL(mark(x0), a__from(cons(mark(z0), z1))), MARK(x0))
   A__SEL(s(x0), cons(x1, from(s(z0)))) -> c3(A__SEL(mark(x0), a__from(s(mark(z0)))), MARK(x0))
   A__SEL(s(x0), cons(x1, from(0))) -> c3(A__SEL(mark(x0), a__from(0)), MARK(x0))
   A__SEL(s(from(z0)), cons(x1, from(x2))) -> c3(A__SEL(a__from(mark(z0)), a__from(mark(x2))), MARK(from(z0)))
   A__SEL(s(sel(z0, z1)), cons(x1, from(x2))) -> c3(A__SEL(a__sel(mark(z0), mark(z1)), a__from(mark(x2))), MARK(sel(z0, z1)))
   A__SEL(s(s(z0)), cons(x1, from(x2))) -> c3(A__SEL(s(mark(z0)), a__from(mark(x2))), MARK(s(z0)))
   A__SEL(s(x0), cons(x1, from(x2))) -> c3(MARK(x0))
   A__SEL(s(cons(z0, z1)), cons(x1, from(x2))) -> c3(MARK(cons(z0, z1)))
   A__SEL(s(0), cons(x1, from(x2))) -> c3(A__SEL(0, a__from(mark(x2))))
   A__SEL(s(x0), cons(x1, sel(x2, from(z0)))) -> c3(A__SEL(mark(x0), a__sel(mark(x2), a__from(mark(z0)))), MARK(x0))
   A__SEL(s(x0), cons(x1, sel(x2, sel(z0, z1)))) -> c3(A__SEL(mark(x0), a__sel(mark(x2), a__sel(mark(z0), mark(z1)))), MARK(x0))
   A__SEL(s(x0), cons(x1, sel(x2, cons(z0, z1)))) -> c3(A__SEL(mark(x0), a__sel(mark(x2), cons(mark(z0), z1))), MARK(x0))
   A__SEL(s(x0), cons(x1, sel(x2, s(z0)))) -> c3(A__SEL(mark(x0), a__sel(mark(x2), s(mark(z0)))), MARK(x0))
   A__SEL(s(x0), cons(x1, sel(x2, 0))) -> c3(A__SEL(mark(x0), a__sel(mark(x2), 0)), MARK(x0))
   A__SEL(s(x0), cons(x1, sel(from(z0), x3))) -> c3(A__SEL(mark(x0), a__sel(a__from(mark(z0)), mark(x3))), MARK(x0))
   A__SEL(s(x0), cons(x1, sel(sel(z0, z1), x3))) -> c3(A__SEL(mark(x0), a__sel(a__sel(mark(z0), mark(z1)), mark(x3))), MARK(x0))
   A__SEL(s(x0), cons(x1, sel(cons(z0, z1), x3))) -> c3(A__SEL(mark(x0), a__sel(cons(mark(z0), z1), mark(x3))), MARK(x0))
   A__SEL(s(x0), cons(x1, sel(s(z0), x3))) -> c3(A__SEL(mark(x0), a__sel(s(mark(z0)), mark(x3))), MARK(x0))
   A__SEL(s(x0), cons(x1, sel(0, x3))) -> c3(A__SEL(mark(x0), a__sel(0, mark(x3))), MARK(x0))
   A__SEL(s(from(z0)), cons(x1, sel(x2, x3))) -> c3(A__SEL(a__from(mark(z0)), a__sel(mark(x2), mark(x3))), MARK(from(z0)))
   A__SEL(s(sel(z0, z1)), cons(x1, sel(x2, x3))) -> c3(A__SEL(a__sel(mark(z0), mark(z1)), a__sel(mark(x2), mark(x3))), MARK(sel(z0, z1)))
   A__SEL(s(s(z0)), cons(x1, sel(x2, x3))) -> c3(A__SEL(s(mark(z0)), a__sel(mark(x2), mark(x3))), MARK(s(z0)))
   A__SEL(s(x0), cons(x1, sel(x2, x3))) -> c3(MARK(x0))
   A__SEL(s(cons(z0, z1)), cons(x1, sel(x2, x3))) -> c3(MARK(cons(z0, z1)))
   A__SEL(s(0), cons(x1, sel(x2, x3))) -> c3(A__SEL(0, a__sel(mark(x2), mark(x3))))
   A__SEL(s(x0), cons(x1, cons(from(z0), x3))) -> c3(A__SEL(mark(x0), cons(a__from(mark(z0)), x3)), MARK(x0))
   A__SEL(s(x0), cons(x1, cons(sel(z0, z1), x3))) -> c3(A__SEL(mark(x0), cons(a__sel(mark(z0), mark(z1)), x3)), MARK(x0))
   A__SEL(s(x0), cons(x1, cons(cons(z0, z1), x3))) -> c3(A__SEL(mark(x0), cons(cons(mark(z0), z1), x3)), MARK(x0))
   A__SEL(s(x0), cons(x1, cons(s(z0), x3))) -> c3(A__SEL(mark(x0), cons(s(mark(z0)), x3)), MARK(x0))
   A__SEL(s(x0), cons(x1, cons(0, x3))) -> c3(A__SEL(mark(x0), cons(0, x3)), MARK(x0))
   A__SEL(s(from(z0)), cons(x1, cons(x2, x3))) -> c3(A__SEL(a__from(mark(z0)), cons(mark(x2), x3)), MARK(from(z0)))
   A__SEL(s(sel(z0, z1)), cons(x1, cons(x2, x3))) -> c3(A__SEL(a__sel(mark(z0), mark(z1)), cons(mark(x2), x3)), MARK(sel(z0, z1)))
   A__SEL(s(s(z0)), cons(x1, cons(x2, x3))) -> c3(A__SEL(s(mark(z0)), cons(mark(x2), x3)), MARK(s(z0)))
   A__SEL(s(cons(z0, z1)), cons(x1, cons(x2, x3))) -> c3(MARK(cons(z0, z1)))
   A__SEL(s(0), cons(x1, cons(x2, x3))) -> c3(A__SEL(0, cons(mark(x2), x3)))
   A__SEL(s(from(from(z0))), cons(x1, x2)) -> c3(A__SEL(a__from(a__from(mark(z0))), mark(x2)), MARK(from(from(z0))))
   A__SEL(s(from(sel(z0, z1))), cons(x1, x2)) -> c3(A__SEL(a__from(a__sel(mark(z0), mark(z1))), mark(x2)), MARK(from(sel(z0, z1))))
   A__SEL(s(from(cons(z0, z1))), cons(x1, x2)) -> c3(A__SEL(a__from(cons(mark(z0), z1)), mark(x2)), MARK(from(cons(z0, z1))))
   A__SEL(s(from(s(z0))), cons(x1, x2)) -> c3(A__SEL(a__from(s(mark(z0))), mark(x2)), MARK(from(s(z0))))
   A__SEL(s(from(0)), cons(x1, x2)) -> c3(A__SEL(a__from(0), mark(x2)), MARK(from(0)))
   A__SEL(s(from(x0)), cons(x1, x2)) -> c3(MARK(from(x0)))
   A__SEL(s(from(x0)), cons(x1, s(z0))) -> c3(MARK(from(x0)))
   A__SEL(s(from(x0)), cons(x1, 0)) -> c3(MARK(from(x0)))
   A__SEL(s(sel(x0, from(z0))), cons(x2, x3)) -> c3(A__SEL(a__sel(mark(x0), a__from(mark(z0))), mark(x3)), MARK(sel(x0, from(z0))))
   A__SEL(s(sel(x0, sel(z0, z1))), cons(x2, x3)) -> c3(A__SEL(a__sel(mark(x0), a__sel(mark(z0), mark(z1))), mark(x3)), MARK(sel(x0, sel(z0, z1))))
   A__SEL(s(sel(x0, cons(z0, z1))), cons(x2, x3)) -> c3(A__SEL(a__sel(mark(x0), cons(mark(z0), z1)), mark(x3)), MARK(sel(x0, cons(z0, z1))))
   A__SEL(s(sel(x0, s(z0))), cons(x2, x3)) -> c3(A__SEL(a__sel(mark(x0), s(mark(z0))), mark(x3)), MARK(sel(x0, s(z0))))
   A__SEL(s(sel(x0, 0)), cons(x2, x3)) -> c3(A__SEL(a__sel(mark(x0), 0), mark(x3)), MARK(sel(x0, 0)))
   A__SEL(s(sel(from(z0), x1)), cons(x2, x3)) -> c3(A__SEL(a__sel(a__from(mark(z0)), mark(x1)), mark(x3)), MARK(sel(from(z0), x1)))
   A__SEL(s(sel(sel(z0, z1), x1)), cons(x2, x3)) -> c3(A__SEL(a__sel(a__sel(mark(z0), mark(z1)), mark(x1)), mark(x3)), MARK(sel(sel(z0, z1), x1)))
   A__SEL(s(sel(cons(z0, z1), x1)), cons(x2, x3)) -> c3(A__SEL(a__sel(cons(mark(z0), z1), mark(x1)), mark(x3)), MARK(sel(cons(z0, z1), x1)))
   A__SEL(s(sel(s(z0), x1)), cons(x2, x3)) -> c3(A__SEL(a__sel(s(mark(z0)), mark(x1)), mark(x3)), MARK(sel(s(z0), x1)))
   A__SEL(s(sel(0, x1)), cons(x2, x3)) -> c3(A__SEL(a__sel(0, mark(x1)), mark(x3)), MARK(sel(0, x1)))
   A__SEL(s(sel(x0, x1)), cons(x2, s(z0))) -> c3(MARK(sel(x0, x1)))
   A__SEL(s(sel(x0, x1)), cons(x2, 0)) -> c3(MARK(sel(x0, x1)))
   A__SEL(s(sel(x0, x1)), cons(x2, x3)) -> c3(MARK(sel(x0, x1)))
   A__SEL(s(s(from(z0))), cons(x1, x2)) -> c3(A__SEL(s(a__from(mark(z0))), mark(x2)), MARK(s(from(z0))))
   A__SEL(s(s(sel(z0, z1))), cons(x1, x2)) -> c3(A__SEL(s(a__sel(mark(z0), mark(z1))), mark(x2)), MARK(s(sel(z0, z1))))
   A__SEL(s(s(cons(z0, z1))), cons(x1, x2)) -> c3(A__SEL(s(cons(mark(z0), z1)), mark(x2)), MARK(s(cons(z0, z1))))
   A__SEL(s(s(s(z0))), cons(x1, x2)) -> c3(A__SEL(s(s(mark(z0))), mark(x2)), MARK(s(s(z0))))
   A__SEL(s(s(0)), cons(x1, x2)) -> c3(A__SEL(s(0), mark(x2)), MARK(s(0)))
   A__SEL(s(s(x0)), cons(x1, x2)) -> c3(MARK(s(x0)))
   A__SEL(s(s(x0)), cons(x1, s(z0))) -> c3(MARK(s(x0)))
   A__SEL(s(s(x0)), cons(x1, 0)) -> c3(MARK(s(x0)))
   A__SEL(s(x0), cons(x1, from(x2))) -> c4(A__SEL(mark(x0), cons(mark(mark(x2)), from(s(mark(x2))))), MARK(from(x2)))
   A__SEL(s(x0), cons(x1, from(from(z0)))) -> c4(A__SEL(mark(x0), a__from(a__from(mark(z0)))), MARK(from(from(z0))))
   A__SEL(s(x0), cons(x1, from(sel(z0, z1)))) -> c4(A__SEL(mark(x0), a__from(a__sel(mark(z0), mark(z1)))), MARK(from(sel(z0, z1))))
   A__SEL(s(x0), cons(x1, from(cons(z0, z1)))) -> c4(A__SEL(mark(x0), a__from(cons(mark(z0), z1))), MARK(from(cons(z0, z1))))
   A__SEL(s(x0), cons(x1, from(s(z0)))) -> c4(A__SEL(mark(x0), a__from(s(mark(z0)))), MARK(from(s(z0))))
   A__SEL(s(x0), cons(x1, from(0))) -> c4(A__SEL(mark(x0), a__from(0)), MARK(from(0)))
   A__SEL(s(from(z0)), cons(x1, from(x2))) -> c4(A__SEL(a__from(mark(z0)), a__from(mark(x2))), MARK(from(x2)))
   A__SEL(s(sel(z0, z1)), cons(x1, from(x2))) -> c4(A__SEL(a__sel(mark(z0), mark(z1)), a__from(mark(x2))), MARK(from(x2)))
   A__SEL(s(s(z0)), cons(x1, from(x2))) -> c4(A__SEL(s(mark(z0)), a__from(mark(x2))), MARK(from(x2)))
   A__SEL(s(0), cons(x1, from(x2))) -> c4(A__SEL(0, a__from(mark(x2))), MARK(from(x2)))
   A__SEL(s(x0), cons(x1, from(x2))) -> c4(MARK(from(x2)))
   A__SEL(s(cons(z0, z1)), cons(x1, from(x2))) -> c4(MARK(from(x2)))
   A__SEL(s(x0), cons(x1, sel(x2, from(z0)))) -> c4(A__SEL(mark(x0), a__sel(mark(x2), a__from(mark(z0)))), MARK(sel(x2, from(z0))))
   A__SEL(s(x0), cons(x1, sel(x2, sel(z0, z1)))) -> c4(A__SEL(mark(x0), a__sel(mark(x2), a__sel(mark(z0), mark(z1)))), MARK(sel(x2, sel(z0, z1))))
   A__SEL(s(x0), cons(x1, sel(x2, cons(z0, z1)))) -> c4(A__SEL(mark(x0), a__sel(mark(x2), cons(mark(z0), z1))), MARK(sel(x2, cons(z0, z1))))
   A__SEL(s(x0), cons(x1, sel(x2, s(z0)))) -> c4(A__SEL(mark(x0), a__sel(mark(x2), s(mark(z0)))), MARK(sel(x2, s(z0))))
   A__SEL(s(x0), cons(x1, sel(x2, 0))) -> c4(A__SEL(mark(x0), a__sel(mark(x2), 0)), MARK(sel(x2, 0)))
   A__SEL(s(x0), cons(x1, sel(from(z0), x3))) -> c4(A__SEL(mark(x0), a__sel(a__from(mark(z0)), mark(x3))), MARK(sel(from(z0), x3)))
   A__SEL(s(x0), cons(x1, sel(sel(z0, z1), x3))) -> c4(A__SEL(mark(x0), a__sel(a__sel(mark(z0), mark(z1)), mark(x3))), MARK(sel(sel(z0, z1), x3)))
   A__SEL(s(x0), cons(x1, sel(cons(z0, z1), x3))) -> c4(A__SEL(mark(x0), a__sel(cons(mark(z0), z1), mark(x3))), MARK(sel(cons(z0, z1), x3)))
   A__SEL(s(x0), cons(x1, sel(s(z0), x3))) -> c4(A__SEL(mark(x0), a__sel(s(mark(z0)), mark(x3))), MARK(sel(s(z0), x3)))
   A__SEL(s(x0), cons(x1, sel(0, x3))) -> c4(A__SEL(mark(x0), a__sel(0, mark(x3))), MARK(sel(0, x3)))
   A__SEL(s(from(z0)), cons(x1, sel(x2, x3))) -> c4(A__SEL(a__from(mark(z0)), a__sel(mark(x2), mark(x3))), MARK(sel(x2, x3)))
   A__SEL(s(sel(z0, z1)), cons(x1, sel(x2, x3))) -> c4(A__SEL(a__sel(mark(z0), mark(z1)), a__sel(mark(x2), mark(x3))), MARK(sel(x2, x3)))
   A__SEL(s(s(z0)), cons(x1, sel(x2, x3))) -> c4(A__SEL(s(mark(z0)), a__sel(mark(x2), mark(x3))), MARK(sel(x2, x3)))
   A__SEL(s(0), cons(x1, sel(x2, x3))) -> c4(A__SEL(0, a__sel(mark(x2), mark(x3))), MARK(sel(x2, x3)))
   A__SEL(s(x0), cons(x1, sel(x2, x3))) -> c4(MARK(sel(x2, x3)))
   A__SEL(s(cons(z0, z1)), cons(x1, sel(x2, x3))) -> c4(MARK(sel(x2, x3)))
   A__SEL(s(x0), cons(x1, cons(from(z0), x3))) -> c4(A__SEL(mark(x0), cons(a__from(mark(z0)), x3)), MARK(cons(from(z0), x3)))
   A__SEL(s(x0), cons(x1, cons(sel(z0, z1), x3))) -> c4(A__SEL(mark(x0), cons(a__sel(mark(z0), mark(z1)), x3)), MARK(cons(sel(z0, z1), x3)))
   A__SEL(s(x0), cons(x1, cons(cons(z0, z1), x3))) -> c4(A__SEL(mark(x0), cons(cons(mark(z0), z1), x3)), MARK(cons(cons(z0, z1), x3)))
   A__SEL(s(x0), cons(x1, cons(s(z0), x3))) -> c4(A__SEL(mark(x0), cons(s(mark(z0)), x3)), MARK(cons(s(z0), x3)))
   A__SEL(s(x0), cons(x1, cons(0, x3))) -> c4(A__SEL(mark(x0), cons(0, x3)), MARK(cons(0, x3)))
   A__SEL(s(from(z0)), cons(x1, cons(x2, x3))) -> c4(A__SEL(a__from(mark(z0)), cons(mark(x2), x3)), MARK(cons(x2, x3)))
   A__SEL(s(sel(z0, z1)), cons(x1, cons(x2, x3))) -> c4(A__SEL(a__sel(mark(z0), mark(z1)), cons(mark(x2), x3)), MARK(cons(x2, x3)))
   A__SEL(s(s(z0)), cons(x1, cons(x2, x3))) -> c4(A__SEL(s(mark(z0)), cons(mark(x2), x3)), MARK(cons(x2, x3)))
   A__SEL(s(0), cons(x1, cons(x2, x3))) -> c4(A__SEL(0, cons(mark(x2), x3)), MARK(cons(x2, x3)))
   A__SEL(s(x0), cons(x1, cons(x2, x3))) -> c4(MARK(cons(x2, x3)))
   A__SEL(s(cons(z0, z1)), cons(x1, cons(x2, x3))) -> c4(MARK(cons(x2, x3)))
   A__SEL(s(from(from(z0))), cons(x1, x2)) -> c4(A__SEL(a__from(a__from(mark(z0))), mark(x2)), MARK(x2))
   A__SEL(s(from(sel(z0, z1))), cons(x1, x2)) -> c4(A__SEL(a__from(a__sel(mark(z0), mark(z1))), mark(x2)), MARK(x2))
   A__SEL(s(from(cons(z0, z1))), cons(x1, x2)) -> c4(A__SEL(a__from(cons(mark(z0), z1)), mark(x2)), MARK(x2))
   A__SEL(s(from(s(z0))), cons(x1, x2)) -> c4(A__SEL(a__from(s(mark(z0))), mark(x2)), MARK(x2))
   A__SEL(s(from(0)), cons(x1, x2)) -> c4(A__SEL(a__from(0), mark(x2)), MARK(x2))
   A__SEL(s(from(x0)), cons(x1, s(z0))) -> c4(MARK(s(z0)))
   A__SEL(s(from(x0)), cons(x1, x2)) -> c4(MARK(x2))
   A__SEL(s(sel(x0, from(z0))), cons(x2, x3)) -> c4(A__SEL(a__sel(mark(x0), a__from(mark(z0))), mark(x3)), MARK(x3))
   A__SEL(s(sel(x0, sel(z0, z1))), cons(x2, x3)) -> c4(A__SEL(a__sel(mark(x0), a__sel(mark(z0), mark(z1))), mark(x3)), MARK(x3))
   A__SEL(s(sel(x0, cons(z0, z1))), cons(x2, x3)) -> c4(A__SEL(a__sel(mark(x0), cons(mark(z0), z1)), mark(x3)), MARK(x3))
   A__SEL(s(sel(x0, s(z0))), cons(x2, x3)) -> c4(A__SEL(a__sel(mark(x0), s(mark(z0))), mark(x3)), MARK(x3))
   A__SEL(s(sel(x0, 0)), cons(x2, x3)) -> c4(A__SEL(a__sel(mark(x0), 0), mark(x3)), MARK(x3))
   A__SEL(s(sel(from(z0), x1)), cons(x2, x3)) -> c4(A__SEL(a__sel(a__from(mark(z0)), mark(x1)), mark(x3)), MARK(x3))
   A__SEL(s(sel(sel(z0, z1), x1)), cons(x2, x3)) -> c4(A__SEL(a__sel(a__sel(mark(z0), mark(z1)), mark(x1)), mark(x3)), MARK(x3))
   A__SEL(s(sel(cons(z0, z1), x1)), cons(x2, x3)) -> c4(A__SEL(a__sel(cons(mark(z0), z1), mark(x1)), mark(x3)), MARK(x3))
   A__SEL(s(sel(s(z0), x1)), cons(x2, x3)) -> c4(A__SEL(a__sel(s(mark(z0)), mark(x1)), mark(x3)), MARK(x3))
   A__SEL(s(sel(0, x1)), cons(x2, x3)) -> c4(A__SEL(a__sel(0, mark(x1)), mark(x3)), MARK(x3))
   A__SEL(s(sel(x0, x1)), cons(x2, s(z0))) -> c4(MARK(s(z0)))
   A__SEL(s(sel(x0, x1)), cons(x2, x3)) -> c4(MARK(x3))
   A__SEL(s(s(from(z0))), cons(x1, x2)) -> c4(A__SEL(s(a__from(mark(z0))), mark(x2)), MARK(x2))
   A__SEL(s(s(sel(z0, z1))), cons(x1, x2)) -> c4(A__SEL(s(a__sel(mark(z0), mark(z1))), mark(x2)), MARK(x2))
   A__SEL(s(s(cons(z0, z1))), cons(x1, x2)) -> c4(A__SEL(s(cons(mark(z0), z1)), mark(x2)), MARK(x2))
   A__SEL(s(s(s(z0))), cons(x1, x2)) -> c4(A__SEL(s(s(mark(z0))), mark(x2)), MARK(x2))
   A__SEL(s(s(0)), cons(x1, x2)) -> c4(A__SEL(s(0), mark(x2)), MARK(x2))
   A__SEL(s(s(x0)), cons(x1, s(z0))) -> c4(MARK(s(z0)))
   A__SEL(s(0), cons(x0, s(z0))) -> c4(MARK(s(z0)))
   MARK(sel(x0, from(x1))) -> c7(A__SEL(mark(x0), cons(mark(mark(x1)), from(s(mark(x1))))), MARK(x0))
   MARK(sel(x0, from(x1))) -> c7(A__SEL(mark(x0), from(mark(x1))), MARK(x0))
   MARK(sel(x0, from(from(z0)))) -> c7(A__SEL(mark(x0), a__from(a__from(mark(z0)))), MARK(x0))
   MARK(sel(x0, from(sel(z0, z1)))) -> c7(A__SEL(mark(x0), a__from(a__sel(mark(z0), mark(z1)))), MARK(x0))
   MARK(sel(x0, from(cons(z0, z1)))) -> c7(A__SEL(mark(x0), a__from(cons(mark(z0), z1))), MARK(x0))
   MARK(sel(x0, from(s(z0)))) -> c7(A__SEL(mark(x0), a__from(s(mark(z0)))), MARK(x0))
   MARK(sel(x0, from(0))) -> c7(A__SEL(mark(x0), a__from(0)), MARK(x0))
   MARK(sel(from(z0), from(x1))) -> c7(A__SEL(a__from(mark(z0)), a__from(mark(x1))), MARK(from(z0)))
   MARK(sel(sel(z0, z1), from(x1))) -> c7(A__SEL(a__sel(mark(z0), mark(z1)), a__from(mark(x1))), MARK(sel(z0, z1)))
   MARK(sel(cons(z0, z1), from(x1))) -> c7(A__SEL(cons(mark(z0), z1), a__from(mark(x1))), MARK(cons(z0, z1)))
   MARK(sel(s(z0), from(x1))) -> c7(A__SEL(s(mark(z0)), a__from(mark(x1))), MARK(s(z0)))
   MARK(sel(0, from(x1))) -> c7(A__SEL(0, a__from(mark(x1))), MARK(0))
K tuples:none
Defined Rule Symbols:   a__from_1, a__sel_2, mark_1

Defined Pair Symbols:   A__FROM_1, A__SEL_2, MARK_1

Compound Symbols:   c_1, c2_1, c6_2, c9_1, c10_1, c3_1, c4_1, c7_2, c7_1, c8_2, c8_1, c3_2, c4_2


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

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

(144)
Obligation:
Complexity Dependency Tuples Problem

Rules:
   a__from(z0) -> cons(mark(z0), from(s(z0)))
   a__from(z0) -> from(z0)
   a__sel(0, cons(z0, z1)) -> mark(z0)
   a__sel(s(z0), cons(z1, z2)) -> a__sel(mark(z0), mark(z2))
   a__sel(z0, z1) -> sel(z0, z1)
   mark(from(z0)) -> a__from(mark(z0))
   mark(sel(z0, z1)) -> a__sel(mark(z0), mark(z1))
   mark(cons(z0, z1)) -> cons(mark(z0), z1)
   mark(s(z0)) -> s(mark(z0))
   mark(0) -> 0
Tuples:
   A__FROM(z0) -> c(MARK(z0))
   A__SEL(0, cons(z0, z1)) -> c2(MARK(z0))
   MARK(from(z0)) -> c6(A__FROM(mark(z0)), MARK(z0))
   MARK(cons(z0, z1)) -> c9(MARK(z0))
   MARK(s(z0)) -> c10(MARK(z0))
   A__SEL(s(x0), cons(x1, s(z0))) -> c3(MARK(x0))
   A__SEL(s(x0), cons(x1, 0)) -> c3(MARK(x0))
   A__SEL(s(cons(z0, z1)), cons(x1, x2)) -> c3(MARK(cons(z0, z1)))
   A__SEL(s(x0), cons(x1, s(z0))) -> c4(MARK(s(z0)))
   A__SEL(s(cons(z0, z1)), cons(x1, x2)) -> c4(MARK(x2))
   MARK(sel(x0, sel(z0, z1))) -> c7(A__SEL(mark(x0), a__sel(mark(z0), mark(z1))), MARK(x0))
   MARK(sel(x0, cons(z0, z1))) -> c7(A__SEL(mark(x0), cons(mark(z0), z1)), MARK(x0))
   MARK(sel(from(z0), x1)) -> c7(A__SEL(a__from(mark(z0)), mark(x1)), MARK(from(z0)))
   MARK(sel(sel(z0, z1), x1)) -> c7(A__SEL(a__sel(mark(z0), mark(z1)), mark(x1)), MARK(sel(z0, z1)))
   MARK(sel(s(z0), x1)) -> c7(A__SEL(s(mark(z0)), mark(x1)), MARK(s(z0)))
   MARK(sel(x0, s(z0))) -> c7(MARK(x0))
   MARK(sel(x0, 0)) -> c7(MARK(x0))
   MARK(sel(cons(z0, z1), x1)) -> c7(MARK(cons(z0, z1)))
   MARK(sel(0, x1)) -> c7(A__SEL(0, mark(x1)))
   MARK(sel(x0, from(z0))) -> c8(A__SEL(mark(x0), a__from(mark(z0))), MARK(from(z0)))
   MARK(sel(x0, sel(z0, z1))) -> c8(A__SEL(mark(x0), a__sel(mark(z0), mark(z1))), MARK(sel(z0, z1)))
   MARK(sel(x0, cons(z0, z1))) -> c8(A__SEL(mark(x0), cons(mark(z0), z1)), MARK(cons(z0, z1)))
   MARK(sel(from(z0), x1)) -> c8(A__SEL(a__from(mark(z0)), mark(x1)), MARK(x1))
   MARK(sel(sel(z0, z1), x1)) -> c8(A__SEL(a__sel(mark(z0), mark(z1)), mark(x1)), MARK(x1))
   MARK(sel(s(z0), x1)) -> c8(A__SEL(s(mark(z0)), mark(x1)), MARK(x1))
   MARK(sel(0, x1)) -> c8(A__SEL(0, mark(x1)), MARK(x1))
   MARK(sel(x0, s(z0))) -> c8(MARK(s(z0)))
   MARK(sel(cons(z0, z1), x1)) -> c8(MARK(x1))
   A__SEL(s(x0), cons(x1, from(x2))) -> c3(A__SEL(mark(x0), cons(mark(mark(x2)), from(s(mark(x2))))), MARK(x0))
   A__SEL(s(x0), cons(x1, from(from(z0)))) -> c3(A__SEL(mark(x0), a__from(a__from(mark(z0)))), MARK(x0))
   A__SEL(s(x0), cons(x1, from(sel(z0, z1)))) -> c3(A__SEL(mark(x0), a__from(a__sel(mark(z0), mark(z1)))), MARK(x0))
   A__SEL(s(x0), cons(x1, from(cons(z0, z1)))) -> c3(A__SEL(mark(x0), a__from(cons(mark(z0), z1))), MARK(x0))
   A__SEL(s(x0), cons(x1, from(s(z0)))) -> c3(A__SEL(mark(x0), a__from(s(mark(z0)))), MARK(x0))
   A__SEL(s(x0), cons(x1, from(0))) -> c3(A__SEL(mark(x0), a__from(0)), MARK(x0))
   A__SEL(s(from(z0)), cons(x1, from(x2))) -> c3(A__SEL(a__from(mark(z0)), a__from(mark(x2))), MARK(from(z0)))
   A__SEL(s(sel(z0, z1)), cons(x1, from(x2))) -> c3(A__SEL(a__sel(mark(z0), mark(z1)), a__from(mark(x2))), MARK(sel(z0, z1)))
   A__SEL(s(s(z0)), cons(x1, from(x2))) -> c3(A__SEL(s(mark(z0)), a__from(mark(x2))), MARK(s(z0)))
   A__SEL(s(x0), cons(x1, from(x2))) -> c3(MARK(x0))
   A__SEL(s(cons(z0, z1)), cons(x1, from(x2))) -> c3(MARK(cons(z0, z1)))
   A__SEL(s(0), cons(x1, from(x2))) -> c3(A__SEL(0, a__from(mark(x2))))
   A__SEL(s(x0), cons(x1, sel(x2, from(z0)))) -> c3(A__SEL(mark(x0), a__sel(mark(x2), a__from(mark(z0)))), MARK(x0))
   A__SEL(s(x0), cons(x1, sel(x2, sel(z0, z1)))) -> c3(A__SEL(mark(x0), a__sel(mark(x2), a__sel(mark(z0), mark(z1)))), MARK(x0))
   A__SEL(s(x0), cons(x1, sel(x2, cons(z0, z1)))) -> c3(A__SEL(mark(x0), a__sel(mark(x2), cons(mark(z0), z1))), MARK(x0))
   A__SEL(s(x0), cons(x1, sel(x2, s(z0)))) -> c3(A__SEL(mark(x0), a__sel(mark(x2), s(mark(z0)))), MARK(x0))
   A__SEL(s(x0), cons(x1, sel(x2, 0))) -> c3(A__SEL(mark(x0), a__sel(mark(x2), 0)), MARK(x0))
   A__SEL(s(x0), cons(x1, sel(from(z0), x3))) -> c3(A__SEL(mark(x0), a__sel(a__from(mark(z0)), mark(x3))), MARK(x0))
   A__SEL(s(x0), cons(x1, sel(sel(z0, z1), x3))) -> c3(A__SEL(mark(x0), a__sel(a__sel(mark(z0), mark(z1)), mark(x3))), MARK(x0))
   A__SEL(s(x0), cons(x1, sel(cons(z0, z1), x3))) -> c3(A__SEL(mark(x0), a__sel(cons(mark(z0), z1), mark(x3))), MARK(x0))
   A__SEL(s(x0), cons(x1, sel(s(z0), x3))) -> c3(A__SEL(mark(x0), a__sel(s(mark(z0)), mark(x3))), MARK(x0))
   A__SEL(s(x0), cons(x1, sel(0, x3))) -> c3(A__SEL(mark(x0), a__sel(0, mark(x3))), MARK(x0))
   A__SEL(s(from(z0)), cons(x1, sel(x2, x3))) -> c3(A__SEL(a__from(mark(z0)), a__sel(mark(x2), mark(x3))), MARK(from(z0)))
   A__SEL(s(sel(z0, z1)), cons(x1, sel(x2, x3))) -> c3(A__SEL(a__sel(mark(z0), mark(z1)), a__sel(mark(x2), mark(x3))), MARK(sel(z0, z1)))
   A__SEL(s(s(z0)), cons(x1, sel(x2, x3))) -> c3(A__SEL(s(mark(z0)), a__sel(mark(x2), mark(x3))), MARK(s(z0)))
   A__SEL(s(x0), cons(x1, sel(x2, x3))) -> c3(MARK(x0))
   A__SEL(s(cons(z0, z1)), cons(x1, sel(x2, x3))) -> c3(MARK(cons(z0, z1)))
   A__SEL(s(0), cons(x1, sel(x2, x3))) -> c3(A__SEL(0, a__sel(mark(x2), mark(x3))))
   A__SEL(s(x0), cons(x1, cons(from(z0), x3))) -> c3(A__SEL(mark(x0), cons(a__from(mark(z0)), x3)), MARK(x0))
   A__SEL(s(x0), cons(x1, cons(sel(z0, z1), x3))) -> c3(A__SEL(mark(x0), cons(a__sel(mark(z0), mark(z1)), x3)), MARK(x0))
   A__SEL(s(x0), cons(x1, cons(cons(z0, z1), x3))) -> c3(A__SEL(mark(x0), cons(cons(mark(z0), z1), x3)), MARK(x0))
   A__SEL(s(x0), cons(x1, cons(s(z0), x3))) -> c3(A__SEL(mark(x0), cons(s(mark(z0)), x3)), MARK(x0))
   A__SEL(s(x0), cons(x1, cons(0, x3))) -> c3(A__SEL(mark(x0), cons(0, x3)), MARK(x0))
   A__SEL(s(from(z0)), cons(x1, cons(x2, x3))) -> c3(A__SEL(a__from(mark(z0)), cons(mark(x2), x3)), MARK(from(z0)))
   A__SEL(s(sel(z0, z1)), cons(x1, cons(x2, x3))) -> c3(A__SEL(a__sel(mark(z0), mark(z1)), cons(mark(x2), x3)), MARK(sel(z0, z1)))
   A__SEL(s(s(z0)), cons(x1, cons(x2, x3))) -> c3(A__SEL(s(mark(z0)), cons(mark(x2), x3)), MARK(s(z0)))
   A__SEL(s(cons(z0, z1)), cons(x1, cons(x2, x3))) -> c3(MARK(cons(z0, z1)))
   A__SEL(s(0), cons(x1, cons(x2, x3))) -> c3(A__SEL(0, cons(mark(x2), x3)))
   A__SEL(s(from(from(z0))), cons(x1, x2)) -> c3(A__SEL(a__from(a__from(mark(z0))), mark(x2)), MARK(from(from(z0))))
   A__SEL(s(from(sel(z0, z1))), cons(x1, x2)) -> c3(A__SEL(a__from(a__sel(mark(z0), mark(z1))), mark(x2)), MARK(from(sel(z0, z1))))
   A__SEL(s(from(cons(z0, z1))), cons(x1, x2)) -> c3(A__SEL(a__from(cons(mark(z0), z1)), mark(x2)), MARK(from(cons(z0, z1))))
   A__SEL(s(from(s(z0))), cons(x1, x2)) -> c3(A__SEL(a__from(s(mark(z0))), mark(x2)), MARK(from(s(z0))))
   A__SEL(s(from(0)), cons(x1, x2)) -> c3(A__SEL(a__from(0), mark(x2)), MARK(from(0)))
   A__SEL(s(from(x0)), cons(x1, x2)) -> c3(MARK(from(x0)))
   A__SEL(s(from(x0)), cons(x1, s(z0))) -> c3(MARK(from(x0)))
   A__SEL(s(from(x0)), cons(x1, 0)) -> c3(MARK(from(x0)))
   A__SEL(s(sel(x0, from(z0))), cons(x2, x3)) -> c3(A__SEL(a__sel(mark(x0), a__from(mark(z0))), mark(x3)), MARK(sel(x0, from(z0))))
   A__SEL(s(sel(x0, sel(z0, z1))), cons(x2, x3)) -> c3(A__SEL(a__sel(mark(x0), a__sel(mark(z0), mark(z1))), mark(x3)), MARK(sel(x0, sel(z0, z1))))
   A__SEL(s(sel(x0, cons(z0, z1))), cons(x2, x3)) -> c3(A__SEL(a__sel(mark(x0), cons(mark(z0), z1)), mark(x3)), MARK(sel(x0, cons(z0, z1))))
   A__SEL(s(sel(x0, s(z0))), cons(x2, x3)) -> c3(A__SEL(a__sel(mark(x0), s(mark(z0))), mark(x3)), MARK(sel(x0, s(z0))))
   A__SEL(s(sel(x0, 0)), cons(x2, x3)) -> c3(A__SEL(a__sel(mark(x0), 0), mark(x3)), MARK(sel(x0, 0)))
   A__SEL(s(sel(from(z0), x1)), cons(x2, x3)) -> c3(A__SEL(a__sel(a__from(mark(z0)), mark(x1)), mark(x3)), MARK(sel(from(z0), x1)))
   A__SEL(s(sel(sel(z0, z1), x1)), cons(x2, x3)) -> c3(A__SEL(a__sel(a__sel(mark(z0), mark(z1)), mark(x1)), mark(x3)), MARK(sel(sel(z0, z1), x1)))
   A__SEL(s(sel(cons(z0, z1), x1)), cons(x2, x3)) -> c3(A__SEL(a__sel(cons(mark(z0), z1), mark(x1)), mark(x3)), MARK(sel(cons(z0, z1), x1)))
   A__SEL(s(sel(s(z0), x1)), cons(x2, x3)) -> c3(A__SEL(a__sel(s(mark(z0)), mark(x1)), mark(x3)), MARK(sel(s(z0), x1)))
   A__SEL(s(sel(0, x1)), cons(x2, x3)) -> c3(A__SEL(a__sel(0, mark(x1)), mark(x3)), MARK(sel(0, x1)))
   A__SEL(s(sel(x0, x1)), cons(x2, s(z0))) -> c3(MARK(sel(x0, x1)))
   A__SEL(s(sel(x0, x1)), cons(x2, 0)) -> c3(MARK(sel(x0, x1)))
   A__SEL(s(sel(x0, x1)), cons(x2, x3)) -> c3(MARK(sel(x0, x1)))
   A__SEL(s(s(from(z0))), cons(x1, x2)) -> c3(A__SEL(s(a__from(mark(z0))), mark(x2)), MARK(s(from(z0))))
   A__SEL(s(s(sel(z0, z1))), cons(x1, x2)) -> c3(A__SEL(s(a__sel(mark(z0), mark(z1))), mark(x2)), MARK(s(sel(z0, z1))))
   A__SEL(s(s(cons(z0, z1))), cons(x1, x2)) -> c3(A__SEL(s(cons(mark(z0), z1)), mark(x2)), MARK(s(cons(z0, z1))))
   A__SEL(s(s(s(z0))), cons(x1, x2)) -> c3(A__SEL(s(s(mark(z0))), mark(x2)), MARK(s(s(z0))))
   A__SEL(s(s(0)), cons(x1, x2)) -> c3(A__SEL(s(0), mark(x2)), MARK(s(0)))
   A__SEL(s(s(x0)), cons(x1, x2)) -> c3(MARK(s(x0)))
   A__SEL(s(s(x0)), cons(x1, s(z0))) -> c3(MARK(s(x0)))
   A__SEL(s(s(x0)), cons(x1, 0)) -> c3(MARK(s(x0)))
   A__SEL(s(x0), cons(x1, from(x2))) -> c4(A__SEL(mark(x0), cons(mark(mark(x2)), from(s(mark(x2))))), MARK(from(x2)))
   A__SEL(s(x0), cons(x1, from(from(z0)))) -> c4(A__SEL(mark(x0), a__from(a__from(mark(z0)))), MARK(from(from(z0))))
   A__SEL(s(x0), cons(x1, from(sel(z0, z1)))) -> c4(A__SEL(mark(x0), a__from(a__sel(mark(z0), mark(z1)))), MARK(from(sel(z0, z1))))
   A__SEL(s(x0), cons(x1, from(cons(z0, z1)))) -> c4(A__SEL(mark(x0), a__from(cons(mark(z0), z1))), MARK(from(cons(z0, z1))))
   A__SEL(s(x0), cons(x1, from(s(z0)))) -> c4(A__SEL(mark(x0), a__from(s(mark(z0)))), MARK(from(s(z0))))
   A__SEL(s(x0), cons(x1, from(0))) -> c4(A__SEL(mark(x0), a__from(0)), MARK(from(0)))
   A__SEL(s(from(z0)), cons(x1, from(x2))) -> c4(A__SEL(a__from(mark(z0)), a__from(mark(x2))), MARK(from(x2)))
   A__SEL(s(sel(z0, z1)), cons(x1, from(x2))) -> c4(A__SEL(a__sel(mark(z0), mark(z1)), a__from(mark(x2))), MARK(from(x2)))
   A__SEL(s(s(z0)), cons(x1, from(x2))) -> c4(A__SEL(s(mark(z0)), a__from(mark(x2))), MARK(from(x2)))
   A__SEL(s(0), cons(x1, from(x2))) -> c4(A__SEL(0, a__from(mark(x2))), MARK(from(x2)))
   A__SEL(s(x0), cons(x1, from(x2))) -> c4(MARK(from(x2)))
   A__SEL(s(cons(z0, z1)), cons(x1, from(x2))) -> c4(MARK(from(x2)))
   A__SEL(s(x0), cons(x1, sel(x2, from(z0)))) -> c4(A__SEL(mark(x0), a__sel(mark(x2), a__from(mark(z0)))), MARK(sel(x2, from(z0))))
   A__SEL(s(x0), cons(x1, sel(x2, sel(z0, z1)))) -> c4(A__SEL(mark(x0), a__sel(mark(x2), a__sel(mark(z0), mark(z1)))), MARK(sel(x2, sel(z0, z1))))
   A__SEL(s(x0), cons(x1, sel(x2, cons(z0, z1)))) -> c4(A__SEL(mark(x0), a__sel(mark(x2), cons(mark(z0), z1))), MARK(sel(x2, cons(z0, z1))))
   A__SEL(s(x0), cons(x1, sel(x2, s(z0)))) -> c4(A__SEL(mark(x0), a__sel(mark(x2), s(mark(z0)))), MARK(sel(x2, s(z0))))
   A__SEL(s(x0), cons(x1, sel(x2, 0))) -> c4(A__SEL(mark(x0), a__sel(mark(x2), 0)), MARK(sel(x2, 0)))
   A__SEL(s(x0), cons(x1, sel(from(z0), x3))) -> c4(A__SEL(mark(x0), a__sel(a__from(mark(z0)), mark(x3))), MARK(sel(from(z0), x3)))
   A__SEL(s(x0), cons(x1, sel(sel(z0, z1), x3))) -> c4(A__SEL(mark(x0), a__sel(a__sel(mark(z0), mark(z1)), mark(x3))), MARK(sel(sel(z0, z1), x3)))
   A__SEL(s(x0), cons(x1, sel(cons(z0, z1), x3))) -> c4(A__SEL(mark(x0), a__sel(cons(mark(z0), z1), mark(x3))), MARK(sel(cons(z0, z1), x3)))
   A__SEL(s(x0), cons(x1, sel(s(z0), x3))) -> c4(A__SEL(mark(x0), a__sel(s(mark(z0)), mark(x3))), MARK(sel(s(z0), x3)))
   A__SEL(s(x0), cons(x1, sel(0, x3))) -> c4(A__SEL(mark(x0), a__sel(0, mark(x3))), MARK(sel(0, x3)))
   A__SEL(s(from(z0)), cons(x1, sel(x2, x3))) -> c4(A__SEL(a__from(mark(z0)), a__sel(mark(x2), mark(x3))), MARK(sel(x2, x3)))
   A__SEL(s(sel(z0, z1)), cons(x1, sel(x2, x3))) -> c4(A__SEL(a__sel(mark(z0), mark(z1)), a__sel(mark(x2), mark(x3))), MARK(sel(x2, x3)))
   A__SEL(s(s(z0)), cons(x1, sel(x2, x3))) -> c4(A__SEL(s(mark(z0)), a__sel(mark(x2), mark(x3))), MARK(sel(x2, x3)))
   A__SEL(s(0), cons(x1, sel(x2, x3))) -> c4(A__SEL(0, a__sel(mark(x2), mark(x3))), MARK(sel(x2, x3)))
   A__SEL(s(x0), cons(x1, sel(x2, x3))) -> c4(MARK(sel(x2, x3)))
   A__SEL(s(cons(z0, z1)), cons(x1, sel(x2, x3))) -> c4(MARK(sel(x2, x3)))
   A__SEL(s(x0), cons(x1, cons(from(z0), x3))) -> c4(A__SEL(mark(x0), cons(a__from(mark(z0)), x3)), MARK(cons(from(z0), x3)))
   A__SEL(s(x0), cons(x1, cons(sel(z0, z1), x3))) -> c4(A__SEL(mark(x0), cons(a__sel(mark(z0), mark(z1)), x3)), MARK(cons(sel(z0, z1), x3)))
   A__SEL(s(x0), cons(x1, cons(cons(z0, z1), x3))) -> c4(A__SEL(mark(x0), cons(cons(mark(z0), z1), x3)), MARK(cons(cons(z0, z1), x3)))
   A__SEL(s(x0), cons(x1, cons(s(z0), x3))) -> c4(A__SEL(mark(x0), cons(s(mark(z0)), x3)), MARK(cons(s(z0), x3)))
   A__SEL(s(x0), cons(x1, cons(0, x3))) -> c4(A__SEL(mark(x0), cons(0, x3)), MARK(cons(0, x3)))
   A__SEL(s(from(z0)), cons(x1, cons(x2, x3))) -> c4(A__SEL(a__from(mark(z0)), cons(mark(x2), x3)), MARK(cons(x2, x3)))
   A__SEL(s(sel(z0, z1)), cons(x1, cons(x2, x3))) -> c4(A__SEL(a__sel(mark(z0), mark(z1)), cons(mark(x2), x3)), MARK(cons(x2, x3)))
   A__SEL(s(s(z0)), cons(x1, cons(x2, x3))) -> c4(A__SEL(s(mark(z0)), cons(mark(x2), x3)), MARK(cons(x2, x3)))
   A__SEL(s(0), cons(x1, cons(x2, x3))) -> c4(A__SEL(0, cons(mark(x2), x3)), MARK(cons(x2, x3)))
   A__SEL(s(x0), cons(x1, cons(x2, x3))) -> c4(MARK(cons(x2, x3)))
   A__SEL(s(cons(z0, z1)), cons(x1, cons(x2, x3))) -> c4(MARK(cons(x2, x3)))
   A__SEL(s(from(from(z0))), cons(x1, x2)) -> c4(A__SEL(a__from(a__from(mark(z0))), mark(x2)), MARK(x2))
   A__SEL(s(from(sel(z0, z1))), cons(x1, x2)) -> c4(A__SEL(a__from(a__sel(mark(z0), mark(z1))), mark(x2)), MARK(x2))
   A__SEL(s(from(cons(z0, z1))), cons(x1, x2)) -> c4(A__SEL(a__from(cons(mark(z0), z1)), mark(x2)), MARK(x2))
   A__SEL(s(from(s(z0))), cons(x1, x2)) -> c4(A__SEL(a__from(s(mark(z0))), mark(x2)), MARK(x2))
   A__SEL(s(from(0)), cons(x1, x2)) -> c4(A__SEL(a__from(0), mark(x2)), MARK(x2))
   A__SEL(s(from(x0)), cons(x1, s(z0))) -> c4(MARK(s(z0)))
   A__SEL(s(from(x0)), cons(x1, x2)) -> c4(MARK(x2))
   A__SEL(s(sel(x0, from(z0))), cons(x2, x3)) -> c4(A__SEL(a__sel(mark(x0), a__from(mark(z0))), mark(x3)), MARK(x3))
   A__SEL(s(sel(x0, sel(z0, z1))), cons(x2, x3)) -> c4(A__SEL(a__sel(mark(x0), a__sel(mark(z0), mark(z1))), mark(x3)), MARK(x3))
   A__SEL(s(sel(x0, cons(z0, z1))), cons(x2, x3)) -> c4(A__SEL(a__sel(mark(x0), cons(mark(z0), z1)), mark(x3)), MARK(x3))
   A__SEL(s(sel(x0, s(z0))), cons(x2, x3)) -> c4(A__SEL(a__sel(mark(x0), s(mark(z0))), mark(x3)), MARK(x3))
   A__SEL(s(sel(x0, 0)), cons(x2, x3)) -> c4(A__SEL(a__sel(mark(x0), 0), mark(x3)), MARK(x3))
   A__SEL(s(sel(from(z0), x1)), cons(x2, x3)) -> c4(A__SEL(a__sel(a__from(mark(z0)), mark(x1)), mark(x3)), MARK(x3))
   A__SEL(s(sel(sel(z0, z1), x1)), cons(x2, x3)) -> c4(A__SEL(a__sel(a__sel(mark(z0), mark(z1)), mark(x1)), mark(x3)), MARK(x3))
   A__SEL(s(sel(cons(z0, z1), x1)), cons(x2, x3)) -> c4(A__SEL(a__sel(cons(mark(z0), z1), mark(x1)), mark(x3)), MARK(x3))
   A__SEL(s(sel(s(z0), x1)), cons(x2, x3)) -> c4(A__SEL(a__sel(s(mark(z0)), mark(x1)), mark(x3)), MARK(x3))
   A__SEL(s(sel(0, x1)), cons(x2, x3)) -> c4(A__SEL(a__sel(0, mark(x1)), mark(x3)), MARK(x3))
   A__SEL(s(sel(x0, x1)), cons(x2, s(z0))) -> c4(MARK(s(z0)))
   A__SEL(s(sel(x0, x1)), cons(x2, x3)) -> c4(MARK(x3))
   A__SEL(s(s(from(z0))), cons(x1, x2)) -> c4(A__SEL(s(a__from(mark(z0))), mark(x2)), MARK(x2))
   A__SEL(s(s(sel(z0, z1))), cons(x1, x2)) -> c4(A__SEL(s(a__sel(mark(z0), mark(z1))), mark(x2)), MARK(x2))
   A__SEL(s(s(cons(z0, z1))), cons(x1, x2)) -> c4(A__SEL(s(cons(mark(z0), z1)), mark(x2)), MARK(x2))
   A__SEL(s(s(s(z0))), cons(x1, x2)) -> c4(A__SEL(s(s(mark(z0))), mark(x2)), MARK(x2))
   A__SEL(s(s(0)), cons(x1, x2)) -> c4(A__SEL(s(0), mark(x2)), MARK(x2))
   A__SEL(s(s(x0)), cons(x1, s(z0))) -> c4(MARK(s(z0)))
   A__SEL(s(0), cons(x0, s(z0))) -> c4(MARK(s(z0)))
   MARK(sel(x0, from(x1))) -> c7(A__SEL(mark(x0), cons(mark(mark(x1)), from(s(mark(x1))))), MARK(x0))
   MARK(sel(x0, from(from(z0)))) -> c7(A__SEL(mark(x0), a__from(a__from(mark(z0)))), MARK(x0))
   MARK(sel(x0, from(sel(z0, z1)))) -> c7(A__SEL(mark(x0), a__from(a__sel(mark(z0), mark(z1)))), MARK(x0))
   MARK(sel(x0, from(cons(z0, z1)))) -> c7(A__SEL(mark(x0), a__from(cons(mark(z0), z1))), MARK(x0))
   MARK(sel(x0, from(s(z0)))) -> c7(A__SEL(mark(x0), a__from(s(mark(z0)))), MARK(x0))
   MARK(sel(x0, from(0))) -> c7(A__SEL(mark(x0), a__from(0)), MARK(x0))
   MARK(sel(from(z0), from(x1))) -> c7(A__SEL(a__from(mark(z0)), a__from(mark(x1))), MARK(from(z0)))
   MARK(sel(sel(z0, z1), from(x1))) -> c7(A__SEL(a__sel(mark(z0), mark(z1)), a__from(mark(x1))), MARK(sel(z0, z1)))
   MARK(sel(s(z0), from(x1))) -> c7(A__SEL(s(mark(z0)), a__from(mark(x1))), MARK(s(z0)))
   MARK(sel(x0, from(x1))) -> c7(MARK(x0))
   MARK(sel(cons(z0, z1), from(x1))) -> c7(MARK(cons(z0, z1)))
   MARK(sel(0, from(x1))) -> c7(A__SEL(0, a__from(mark(x1))))
S tuples:
   A__FROM(z0) -> c(MARK(z0))
   A__SEL(0, cons(z0, z1)) -> c2(MARK(z0))
   MARK(from(z0)) -> c6(A__FROM(mark(z0)), MARK(z0))
   MARK(cons(z0, z1)) -> c9(MARK(z0))
   MARK(s(z0)) -> c10(MARK(z0))
   A__SEL(s(x0), cons(x1, s(z0))) -> c3(MARK(x0))
   A__SEL(s(x0), cons(x1, 0)) -> c3(MARK(x0))
   A__SEL(s(cons(z0, z1)), cons(x1, x2)) -> c3(MARK(cons(z0, z1)))
   A__SEL(s(x0), cons(x1, s(z0))) -> c4(MARK(s(z0)))
   A__SEL(s(cons(z0, z1)), cons(x1, x2)) -> c4(MARK(x2))
   MARK(sel(x0, sel(z0, z1))) -> c7(A__SEL(mark(x0), a__sel(mark(z0), mark(z1))), MARK(x0))
   MARK(sel(x0, cons(z0, z1))) -> c7(A__SEL(mark(x0), cons(mark(z0), z1)), MARK(x0))
   MARK(sel(from(z0), x1)) -> c7(A__SEL(a__from(mark(z0)), mark(x1)), MARK(from(z0)))
   MARK(sel(sel(z0, z1), x1)) -> c7(A__SEL(a__sel(mark(z0), mark(z1)), mark(x1)), MARK(sel(z0, z1)))
   MARK(sel(s(z0), x1)) -> c7(A__SEL(s(mark(z0)), mark(x1)), MARK(s(z0)))
   MARK(sel(x0, s(z0))) -> c7(MARK(x0))
   MARK(sel(x0, 0)) -> c7(MARK(x0))
   MARK(sel(cons(z0, z1), x1)) -> c7(MARK(cons(z0, z1)))
   MARK(sel(0, x1)) -> c7(A__SEL(0, mark(x1)))
   MARK(sel(x0, from(z0))) -> c8(A__SEL(mark(x0), a__from(mark(z0))), MARK(from(z0)))
   MARK(sel(x0, sel(z0, z1))) -> c8(A__SEL(mark(x0), a__sel(mark(z0), mark(z1))), MARK(sel(z0, z1)))
   MARK(sel(x0, cons(z0, z1))) -> c8(A__SEL(mark(x0), cons(mark(z0), z1)), MARK(cons(z0, z1)))
   MARK(sel(from(z0), x1)) -> c8(A__SEL(a__from(mark(z0)), mark(x1)), MARK(x1))
   MARK(sel(sel(z0, z1), x1)) -> c8(A__SEL(a__sel(mark(z0), mark(z1)), mark(x1)), MARK(x1))
   MARK(sel(s(z0), x1)) -> c8(A__SEL(s(mark(z0)), mark(x1)), MARK(x1))
   MARK(sel(0, x1)) -> c8(A__SEL(0, mark(x1)), MARK(x1))
   MARK(sel(x0, s(z0))) -> c8(MARK(s(z0)))
   MARK(sel(cons(z0, z1), x1)) -> c8(MARK(x1))
   A__SEL(s(x0), cons(x1, from(x2))) -> c3(A__SEL(mark(x0), cons(mark(mark(x2)), from(s(mark(x2))))), MARK(x0))
   A__SEL(s(x0), cons(x1, from(from(z0)))) -> c3(A__SEL(mark(x0), a__from(a__from(mark(z0)))), MARK(x0))
   A__SEL(s(x0), cons(x1, from(sel(z0, z1)))) -> c3(A__SEL(mark(x0), a__from(a__sel(mark(z0), mark(z1)))), MARK(x0))
   A__SEL(s(x0), cons(x1, from(cons(z0, z1)))) -> c3(A__SEL(mark(x0), a__from(cons(mark(z0), z1))), MARK(x0))
   A__SEL(s(x0), cons(x1, from(s(z0)))) -> c3(A__SEL(mark(x0), a__from(s(mark(z0)))), MARK(x0))
   A__SEL(s(x0), cons(x1, from(0))) -> c3(A__SEL(mark(x0), a__from(0)), MARK(x0))
   A__SEL(s(from(z0)), cons(x1, from(x2))) -> c3(A__SEL(a__from(mark(z0)), a__from(mark(x2))), MARK(from(z0)))
   A__SEL(s(sel(z0, z1)), cons(x1, from(x2))) -> c3(A__SEL(a__sel(mark(z0), mark(z1)), a__from(mark(x2))), MARK(sel(z0, z1)))
   A__SEL(s(s(z0)), cons(x1, from(x2))) -> c3(A__SEL(s(mark(z0)), a__from(mark(x2))), MARK(s(z0)))
   A__SEL(s(x0), cons(x1, from(x2))) -> c3(MARK(x0))
   A__SEL(s(cons(z0, z1)), cons(x1, from(x2))) -> c3(MARK(cons(z0, z1)))
   A__SEL(s(0), cons(x1, from(x2))) -> c3(A__SEL(0, a__from(mark(x2))))
   A__SEL(s(x0), cons(x1, sel(x2, from(z0)))) -> c3(A__SEL(mark(x0), a__sel(mark(x2), a__from(mark(z0)))), MARK(x0))
   A__SEL(s(x0), cons(x1, sel(x2, sel(z0, z1)))) -> c3(A__SEL(mark(x0), a__sel(mark(x2), a__sel(mark(z0), mark(z1)))), MARK(x0))
   A__SEL(s(x0), cons(x1, sel(x2, cons(z0, z1)))) -> c3(A__SEL(mark(x0), a__sel(mark(x2), cons(mark(z0), z1))), MARK(x0))
   A__SEL(s(x0), cons(x1, sel(x2, s(z0)))) -> c3(A__SEL(mark(x0), a__sel(mark(x2), s(mark(z0)))), MARK(x0))
   A__SEL(s(x0), cons(x1, sel(x2, 0))) -> c3(A__SEL(mark(x0), a__sel(mark(x2), 0)), MARK(x0))
   A__SEL(s(x0), cons(x1, sel(from(z0), x3))) -> c3(A__SEL(mark(x0), a__sel(a__from(mark(z0)), mark(x3))), MARK(x0))
   A__SEL(s(x0), cons(x1, sel(sel(z0, z1), x3))) -> c3(A__SEL(mark(x0), a__sel(a__sel(mark(z0), mark(z1)), mark(x3))), MARK(x0))
   A__SEL(s(x0), cons(x1, sel(cons(z0, z1), x3))) -> c3(A__SEL(mark(x0), a__sel(cons(mark(z0), z1), mark(x3))), MARK(x0))
   A__SEL(s(x0), cons(x1, sel(s(z0), x3))) -> c3(A__SEL(mark(x0), a__sel(s(mark(z0)), mark(x3))), MARK(x0))
   A__SEL(s(x0), cons(x1, sel(0, x3))) -> c3(A__SEL(mark(x0), a__sel(0, mark(x3))), MARK(x0))
   A__SEL(s(from(z0)), cons(x1, sel(x2, x3))) -> c3(A__SEL(a__from(mark(z0)), a__sel(mark(x2), mark(x3))), MARK(from(z0)))
   A__SEL(s(sel(z0, z1)), cons(x1, sel(x2, x3))) -> c3(A__SEL(a__sel(mark(z0), mark(z1)), a__sel(mark(x2), mark(x3))), MARK(sel(z0, z1)))
   A__SEL(s(s(z0)), cons(x1, sel(x2, x3))) -> c3(A__SEL(s(mark(z0)), a__sel(mark(x2), mark(x3))), MARK(s(z0)))
   A__SEL(s(x0), cons(x1, sel(x2, x3))) -> c3(MARK(x0))
   A__SEL(s(cons(z0, z1)), cons(x1, sel(x2, x3))) -> c3(MARK(cons(z0, z1)))
   A__SEL(s(0), cons(x1, sel(x2, x3))) -> c3(A__SEL(0, a__sel(mark(x2), mark(x3))))
   A__SEL(s(x0), cons(x1, cons(from(z0), x3))) -> c3(A__SEL(mark(x0), cons(a__from(mark(z0)), x3)), MARK(x0))
   A__SEL(s(x0), cons(x1, cons(sel(z0, z1), x3))) -> c3(A__SEL(mark(x0), cons(a__sel(mark(z0), mark(z1)), x3)), MARK(x0))
   A__SEL(s(x0), cons(x1, cons(cons(z0, z1), x3))) -> c3(A__SEL(mark(x0), cons(cons(mark(z0), z1), x3)), MARK(x0))
   A__SEL(s(x0), cons(x1, cons(s(z0), x3))) -> c3(A__SEL(mark(x0), cons(s(mark(z0)), x3)), MARK(x0))
   A__SEL(s(x0), cons(x1, cons(0, x3))) -> c3(A__SEL(mark(x0), cons(0, x3)), MARK(x0))
   A__SEL(s(from(z0)), cons(x1, cons(x2, x3))) -> c3(A__SEL(a__from(mark(z0)), cons(mark(x2), x3)), MARK(from(z0)))
   A__SEL(s(sel(z0, z1)), cons(x1, cons(x2, x3))) -> c3(A__SEL(a__sel(mark(z0), mark(z1)), cons(mark(x2), x3)), MARK(sel(z0, z1)))
   A__SEL(s(s(z0)), cons(x1, cons(x2, x3))) -> c3(A__SEL(s(mark(z0)), cons(mark(x2), x3)), MARK(s(z0)))
   A__SEL(s(cons(z0, z1)), cons(x1, cons(x2, x3))) -> c3(MARK(cons(z0, z1)))
   A__SEL(s(0), cons(x1, cons(x2, x3))) -> c3(A__SEL(0, cons(mark(x2), x3)))
   A__SEL(s(from(from(z0))), cons(x1, x2)) -> c3(A__SEL(a__from(a__from(mark(z0))), mark(x2)), MARK(from(from(z0))))
   A__SEL(s(from(sel(z0, z1))), cons(x1, x2)) -> c3(A__SEL(a__from(a__sel(mark(z0), mark(z1))), mark(x2)), MARK(from(sel(z0, z1))))
   A__SEL(s(from(cons(z0, z1))), cons(x1, x2)) -> c3(A__SEL(a__from(cons(mark(z0), z1)), mark(x2)), MARK(from(cons(z0, z1))))
   A__SEL(s(from(s(z0))), cons(x1, x2)) -> c3(A__SEL(a__from(s(mark(z0))), mark(x2)), MARK(from(s(z0))))
   A__SEL(s(from(0)), cons(x1, x2)) -> c3(A__SEL(a__from(0), mark(x2)), MARK(from(0)))
   A__SEL(s(from(x0)), cons(x1, x2)) -> c3(MARK(from(x0)))
   A__SEL(s(from(x0)), cons(x1, s(z0))) -> c3(MARK(from(x0)))
   A__SEL(s(from(x0)), cons(x1, 0)) -> c3(MARK(from(x0)))
   A__SEL(s(sel(x0, from(z0))), cons(x2, x3)) -> c3(A__SEL(a__sel(mark(x0), a__from(mark(z0))), mark(x3)), MARK(sel(x0, from(z0))))
   A__SEL(s(sel(x0, sel(z0, z1))), cons(x2, x3)) -> c3(A__SEL(a__sel(mark(x0), a__sel(mark(z0), mark(z1))), mark(x3)), MARK(sel(x0, sel(z0, z1))))
   A__SEL(s(sel(x0, cons(z0, z1))), cons(x2, x3)) -> c3(A__SEL(a__sel(mark(x0), cons(mark(z0), z1)), mark(x3)), MARK(sel(x0, cons(z0, z1))))
   A__SEL(s(sel(x0, s(z0))), cons(x2, x3)) -> c3(A__SEL(a__sel(mark(x0), s(mark(z0))), mark(x3)), MARK(sel(x0, s(z0))))
   A__SEL(s(sel(x0, 0)), cons(x2, x3)) -> c3(A__SEL(a__sel(mark(x0), 0), mark(x3)), MARK(sel(x0, 0)))
   A__SEL(s(sel(from(z0), x1)), cons(x2, x3)) -> c3(A__SEL(a__sel(a__from(mark(z0)), mark(x1)), mark(x3)), MARK(sel(from(z0), x1)))
   A__SEL(s(sel(sel(z0, z1), x1)), cons(x2, x3)) -> c3(A__SEL(a__sel(a__sel(mark(z0), mark(z1)), mark(x1)), mark(x3)), MARK(sel(sel(z0, z1), x1)))
   A__SEL(s(sel(cons(z0, z1), x1)), cons(x2, x3)) -> c3(A__SEL(a__sel(cons(mark(z0), z1), mark(x1)), mark(x3)), MARK(sel(cons(z0, z1), x1)))
   A__SEL(s(sel(s(z0), x1)), cons(x2, x3)) -> c3(A__SEL(a__sel(s(mark(z0)), mark(x1)), mark(x3)), MARK(sel(s(z0), x1)))
   A__SEL(s(sel(0, x1)), cons(x2, x3)) -> c3(A__SEL(a__sel(0, mark(x1)), mark(x3)), MARK(sel(0, x1)))
   A__SEL(s(sel(x0, x1)), cons(x2, s(z0))) -> c3(MARK(sel(x0, x1)))
   A__SEL(s(sel(x0, x1)), cons(x2, 0)) -> c3(MARK(sel(x0, x1)))
   A__SEL(s(sel(x0, x1)), cons(x2, x3)) -> c3(MARK(sel(x0, x1)))
   A__SEL(s(s(from(z0))), cons(x1, x2)) -> c3(A__SEL(s(a__from(mark(z0))), mark(x2)), MARK(s(from(z0))))
   A__SEL(s(s(sel(z0, z1))), cons(x1, x2)) -> c3(A__SEL(s(a__sel(mark(z0), mark(z1))), mark(x2)), MARK(s(sel(z0, z1))))
   A__SEL(s(s(cons(z0, z1))), cons(x1, x2)) -> c3(A__SEL(s(cons(mark(z0), z1)), mark(x2)), MARK(s(cons(z0, z1))))
   A__SEL(s(s(s(z0))), cons(x1, x2)) -> c3(A__SEL(s(s(mark(z0))), mark(x2)), MARK(s(s(z0))))
   A__SEL(s(s(0)), cons(x1, x2)) -> c3(A__SEL(s(0), mark(x2)), MARK(s(0)))
   A__SEL(s(s(x0)), cons(x1, x2)) -> c3(MARK(s(x0)))
   A__SEL(s(s(x0)), cons(x1, s(z0))) -> c3(MARK(s(x0)))
   A__SEL(s(s(x0)), cons(x1, 0)) -> c3(MARK(s(x0)))
   A__SEL(s(x0), cons(x1, from(x2))) -> c4(A__SEL(mark(x0), cons(mark(mark(x2)), from(s(mark(x2))))), MARK(from(x2)))
   A__SEL(s(x0), cons(x1, from(from(z0)))) -> c4(A__SEL(mark(x0), a__from(a__from(mark(z0)))), MARK(from(from(z0))))
   A__SEL(s(x0), cons(x1, from(sel(z0, z1)))) -> c4(A__SEL(mark(x0), a__from(a__sel(mark(z0), mark(z1)))), MARK(from(sel(z0, z1))))
   A__SEL(s(x0), cons(x1, from(cons(z0, z1)))) -> c4(A__SEL(mark(x0), a__from(cons(mark(z0), z1))), MARK(from(cons(z0, z1))))
   A__SEL(s(x0), cons(x1, from(s(z0)))) -> c4(A__SEL(mark(x0), a__from(s(mark(z0)))), MARK(from(s(z0))))
   A__SEL(s(x0), cons(x1, from(0))) -> c4(A__SEL(mark(x0), a__from(0)), MARK(from(0)))
   A__SEL(s(from(z0)), cons(x1, from(x2))) -> c4(A__SEL(a__from(mark(z0)), a__from(mark(x2))), MARK(from(x2)))
   A__SEL(s(sel(z0, z1)), cons(x1, from(x2))) -> c4(A__SEL(a__sel(mark(z0), mark(z1)), a__from(mark(x2))), MARK(from(x2)))
   A__SEL(s(s(z0)), cons(x1, from(x2))) -> c4(A__SEL(s(mark(z0)), a__from(mark(x2))), MARK(from(x2)))
   A__SEL(s(0), cons(x1, from(x2))) -> c4(A__SEL(0, a__from(mark(x2))), MARK(from(x2)))
   A__SEL(s(x0), cons(x1, from(x2))) -> c4(MARK(from(x2)))
   A__SEL(s(cons(z0, z1)), cons(x1, from(x2))) -> c4(MARK(from(x2)))
   A__SEL(s(x0), cons(x1, sel(x2, from(z0)))) -> c4(A__SEL(mark(x0), a__sel(mark(x2), a__from(mark(z0)))), MARK(sel(x2, from(z0))))
   A__SEL(s(x0), cons(x1, sel(x2, sel(z0, z1)))) -> c4(A__SEL(mark(x0), a__sel(mark(x2), a__sel(mark(z0), mark(z1)))), MARK(sel(x2, sel(z0, z1))))
   A__SEL(s(x0), cons(x1, sel(x2, cons(z0, z1)))) -> c4(A__SEL(mark(x0), a__sel(mark(x2), cons(mark(z0), z1))), MARK(sel(x2, cons(z0, z1))))
   A__SEL(s(x0), cons(x1, sel(x2, s(z0)))) -> c4(A__SEL(mark(x0), a__sel(mark(x2), s(mark(z0)))), MARK(sel(x2, s(z0))))
   A__SEL(s(x0), cons(x1, sel(x2, 0))) -> c4(A__SEL(mark(x0), a__sel(mark(x2), 0)), MARK(sel(x2, 0)))
   A__SEL(s(x0), cons(x1, sel(from(z0), x3))) -> c4(A__SEL(mark(x0), a__sel(a__from(mark(z0)), mark(x3))), MARK(sel(from(z0), x3)))
   A__SEL(s(x0), cons(x1, sel(sel(z0, z1), x3))) -> c4(A__SEL(mark(x0), a__sel(a__sel(mark(z0), mark(z1)), mark(x3))), MARK(sel(sel(z0, z1), x3)))
   A__SEL(s(x0), cons(x1, sel(cons(z0, z1), x3))) -> c4(A__SEL(mark(x0), a__sel(cons(mark(z0), z1), mark(x3))), MARK(sel(cons(z0, z1), x3)))
   A__SEL(s(x0), cons(x1, sel(s(z0), x3))) -> c4(A__SEL(mark(x0), a__sel(s(mark(z0)), mark(x3))), MARK(sel(s(z0), x3)))
   A__SEL(s(x0), cons(x1, sel(0, x3))) -> c4(A__SEL(mark(x0), a__sel(0, mark(x3))), MARK(sel(0, x3)))
   A__SEL(s(from(z0)), cons(x1, sel(x2, x3))) -> c4(A__SEL(a__from(mark(z0)), a__sel(mark(x2), mark(x3))), MARK(sel(x2, x3)))
   A__SEL(s(sel(z0, z1)), cons(x1, sel(x2, x3))) -> c4(A__SEL(a__sel(mark(z0), mark(z1)), a__sel(mark(x2), mark(x3))), MARK(sel(x2, x3)))
   A__SEL(s(s(z0)), cons(x1, sel(x2, x3))) -> c4(A__SEL(s(mark(z0)), a__sel(mark(x2), mark(x3))), MARK(sel(x2, x3)))
   A__SEL(s(0), cons(x1, sel(x2, x3))) -> c4(A__SEL(0, a__sel(mark(x2), mark(x3))), MARK(sel(x2, x3)))
   A__SEL(s(x0), cons(x1, sel(x2, x3))) -> c4(MARK(sel(x2, x3)))
   A__SEL(s(cons(z0, z1)), cons(x1, sel(x2, x3))) -> c4(MARK(sel(x2, x3)))
   A__SEL(s(x0), cons(x1, cons(from(z0), x3))) -> c4(A__SEL(mark(x0), cons(a__from(mark(z0)), x3)), MARK(cons(from(z0), x3)))
   A__SEL(s(x0), cons(x1, cons(sel(z0, z1), x3))) -> c4(A__SEL(mark(x0), cons(a__sel(mark(z0), mark(z1)), x3)), MARK(cons(sel(z0, z1), x3)))
   A__SEL(s(x0), cons(x1, cons(cons(z0, z1), x3))) -> c4(A__SEL(mark(x0), cons(cons(mark(z0), z1), x3)), MARK(cons(cons(z0, z1), x3)))
   A__SEL(s(x0), cons(x1, cons(s(z0), x3))) -> c4(A__SEL(mark(x0), cons(s(mark(z0)), x3)), MARK(cons(s(z0), x3)))
   A__SEL(s(x0), cons(x1, cons(0, x3))) -> c4(A__SEL(mark(x0), cons(0, x3)), MARK(cons(0, x3)))
   A__SEL(s(from(z0)), cons(x1, cons(x2, x3))) -> c4(A__SEL(a__from(mark(z0)), cons(mark(x2), x3)), MARK(cons(x2, x3)))
   A__SEL(s(sel(z0, z1)), cons(x1, cons(x2, x3))) -> c4(A__SEL(a__sel(mark(z0), mark(z1)), cons(mark(x2), x3)), MARK(cons(x2, x3)))
   A__SEL(s(s(z0)), cons(x1, cons(x2, x3))) -> c4(A__SEL(s(mark(z0)), cons(mark(x2), x3)), MARK(cons(x2, x3)))
   A__SEL(s(0), cons(x1, cons(x2, x3))) -> c4(A__SEL(0, cons(mark(x2), x3)), MARK(cons(x2, x3)))
   A__SEL(s(x0), cons(x1, cons(x2, x3))) -> c4(MARK(cons(x2, x3)))
   A__SEL(s(cons(z0, z1)), cons(x1, cons(x2, x3))) -> c4(MARK(cons(x2, x3)))
   A__SEL(s(from(from(z0))), cons(x1, x2)) -> c4(A__SEL(a__from(a__from(mark(z0))), mark(x2)), MARK(x2))
   A__SEL(s(from(sel(z0, z1))), cons(x1, x2)) -> c4(A__SEL(a__from(a__sel(mark(z0), mark(z1))), mark(x2)), MARK(x2))
   A__SEL(s(from(cons(z0, z1))), cons(x1, x2)) -> c4(A__SEL(a__from(cons(mark(z0), z1)), mark(x2)), MARK(x2))
   A__SEL(s(from(s(z0))), cons(x1, x2)) -> c4(A__SEL(a__from(s(mark(z0))), mark(x2)), MARK(x2))
   A__SEL(s(from(0)), cons(x1, x2)) -> c4(A__SEL(a__from(0), mark(x2)), MARK(x2))
   A__SEL(s(from(x0)), cons(x1, s(z0))) -> c4(MARK(s(z0)))
   A__SEL(s(from(x0)), cons(x1, x2)) -> c4(MARK(x2))
   A__SEL(s(sel(x0, from(z0))), cons(x2, x3)) -> c4(A__SEL(a__sel(mark(x0), a__from(mark(z0))), mark(x3)), MARK(x3))
   A__SEL(s(sel(x0, sel(z0, z1))), cons(x2, x3)) -> c4(A__SEL(a__sel(mark(x0), a__sel(mark(z0), mark(z1))), mark(x3)), MARK(x3))
   A__SEL(s(sel(x0, cons(z0, z1))), cons(x2, x3)) -> c4(A__SEL(a__sel(mark(x0), cons(mark(z0), z1)), mark(x3)), MARK(x3))
   A__SEL(s(sel(x0, s(z0))), cons(x2, x3)) -> c4(A__SEL(a__sel(mark(x0), s(mark(z0))), mark(x3)), MARK(x3))
   A__SEL(s(sel(x0, 0)), cons(x2, x3)) -> c4(A__SEL(a__sel(mark(x0), 0), mark(x3)), MARK(x3))
   A__SEL(s(sel(from(z0), x1)), cons(x2, x3)) -> c4(A__SEL(a__sel(a__from(mark(z0)), mark(x1)), mark(x3)), MARK(x3))
   A__SEL(s(sel(sel(z0, z1), x1)), cons(x2, x3)) -> c4(A__SEL(a__sel(a__sel(mark(z0), mark(z1)), mark(x1)), mark(x3)), MARK(x3))
   A__SEL(s(sel(cons(z0, z1), x1)), cons(x2, x3)) -> c4(A__SEL(a__sel(cons(mark(z0), z1), mark(x1)), mark(x3)), MARK(x3))
   A__SEL(s(sel(s(z0), x1)), cons(x2, x3)) -> c4(A__SEL(a__sel(s(mark(z0)), mark(x1)), mark(x3)), MARK(x3))
   A__SEL(s(sel(0, x1)), cons(x2, x3)) -> c4(A__SEL(a__sel(0, mark(x1)), mark(x3)), MARK(x3))
   A__SEL(s(sel(x0, x1)), cons(x2, s(z0))) -> c4(MARK(s(z0)))
   A__SEL(s(sel(x0, x1)), cons(x2, x3)) -> c4(MARK(x3))
   A__SEL(s(s(from(z0))), cons(x1, x2)) -> c4(A__SEL(s(a__from(mark(z0))), mark(x2)), MARK(x2))
   A__SEL(s(s(sel(z0, z1))), cons(x1, x2)) -> c4(A__SEL(s(a__sel(mark(z0), mark(z1))), mark(x2)), MARK(x2))
   A__SEL(s(s(cons(z0, z1))), cons(x1, x2)) -> c4(A__SEL(s(cons(mark(z0), z1)), mark(x2)), MARK(x2))
   A__SEL(s(s(s(z0))), cons(x1, x2)) -> c4(A__SEL(s(s(mark(z0))), mark(x2)), MARK(x2))
   A__SEL(s(s(0)), cons(x1, x2)) -> c4(A__SEL(s(0), mark(x2)), MARK(x2))
   A__SEL(s(s(x0)), cons(x1, s(z0))) -> c4(MARK(s(z0)))
   A__SEL(s(0), cons(x0, s(z0))) -> c4(MARK(s(z0)))
   MARK(sel(x0, from(x1))) -> c7(A__SEL(mark(x0), cons(mark(mark(x1)), from(s(mark(x1))))), MARK(x0))
   MARK(sel(x0, from(from(z0)))) -> c7(A__SEL(mark(x0), a__from(a__from(mark(z0)))), MARK(x0))
   MARK(sel(x0, from(sel(z0, z1)))) -> c7(A__SEL(mark(x0), a__from(a__sel(mark(z0), mark(z1)))), MARK(x0))
   MARK(sel(x0, from(cons(z0, z1)))) -> c7(A__SEL(mark(x0), a__from(cons(mark(z0), z1))), MARK(x0))
   MARK(sel(x0, from(s(z0)))) -> c7(A__SEL(mark(x0), a__from(s(mark(z0)))), MARK(x0))
   MARK(sel(x0, from(0))) -> c7(A__SEL(mark(x0), a__from(0)), MARK(x0))
   MARK(sel(from(z0), from(x1))) -> c7(A__SEL(a__from(mark(z0)), a__from(mark(x1))), MARK(from(z0)))
   MARK(sel(sel(z0, z1), from(x1))) -> c7(A__SEL(a__sel(mark(z0), mark(z1)), a__from(mark(x1))), MARK(sel(z0, z1)))
   MARK(sel(s(z0), from(x1))) -> c7(A__SEL(s(mark(z0)), a__from(mark(x1))), MARK(s(z0)))
   MARK(sel(x0, from(x1))) -> c7(MARK(x0))
   MARK(sel(cons(z0, z1), from(x1))) -> c7(MARK(cons(z0, z1)))
   MARK(sel(0, from(x1))) -> c7(A__SEL(0, a__from(mark(x1))))
K tuples:none
Defined Rule Symbols:   a__from_1, a__sel_2, mark_1

Defined Pair Symbols:   A__FROM_1, A__SEL_2, MARK_1

Compound Symbols:   c_1, c2_1, c6_2, c9_1, c10_1, c3_1, c4_1, c7_2, c7_1, c8_2, c8_1, c3_2, c4_2


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

(145) CdtNarrowingProof (BOTH BOUNDS(ID, ID))
Use narrowing to replace MARK(sel(x0, sel(z0, z1))) -> c7(A__SEL(mark(x0), a__sel(mark(z0), mark(z1))), MARK(x0)) by 
   MARK(sel(x0, sel(x1, x2))) -> c7(A__SEL(mark(x0), sel(mark(x1), mark(x2))), MARK(x0))
   MARK(sel(x0, sel(x1, from(z0)))) -> c7(A__SEL(mark(x0), a__sel(mark(x1), a__from(mark(z0)))), MARK(x0))
   MARK(sel(x0, sel(x1, sel(z0, z1)))) -> c7(A__SEL(mark(x0), a__sel(mark(x1), a__sel(mark(z0), mark(z1)))), MARK(x0))
   MARK(sel(x0, sel(x1, cons(z0, z1)))) -> c7(A__SEL(mark(x0), a__sel(mark(x1), cons(mark(z0), z1))), MARK(x0))
   MARK(sel(x0, sel(x1, s(z0)))) -> c7(A__SEL(mark(x0), a__sel(mark(x1), s(mark(z0)))), MARK(x0))
   MARK(sel(x0, sel(x1, 0))) -> c7(A__SEL(mark(x0), a__sel(mark(x1), 0)), MARK(x0))
   MARK(sel(x0, sel(from(z0), x2))) -> c7(A__SEL(mark(x0), a__sel(a__from(mark(z0)), mark(x2))), MARK(x0))
   MARK(sel(x0, sel(sel(z0, z1), x2))) -> c7(A__SEL(mark(x0), a__sel(a__sel(mark(z0), mark(z1)), mark(x2))), MARK(x0))
   MARK(sel(x0, sel(cons(z0, z1), x2))) -> c7(A__SEL(mark(x0), a__sel(cons(mark(z0), z1), mark(x2))), MARK(x0))
   MARK(sel(x0, sel(s(z0), x2))) -> c7(A__SEL(mark(x0), a__sel(s(mark(z0)), mark(x2))), MARK(x0))
   MARK(sel(x0, sel(0, x2))) -> c7(A__SEL(mark(x0), a__sel(0, mark(x2))), MARK(x0))
   MARK(sel(from(z0), sel(x1, x2))) -> c7(A__SEL(a__from(mark(z0)), a__sel(mark(x1), mark(x2))), MARK(from(z0)))
   MARK(sel(sel(z0, z1), sel(x1, x2))) -> c7(A__SEL(a__sel(mark(z0), mark(z1)), a__sel(mark(x1), mark(x2))), MARK(sel(z0, z1)))
   MARK(sel(cons(z0, z1), sel(x1, x2))) -> c7(A__SEL(cons(mark(z0), z1), a__sel(mark(x1), mark(x2))), MARK(cons(z0, z1)))
   MARK(sel(s(z0), sel(x1, x2))) -> c7(A__SEL(s(mark(z0)), a__sel(mark(x1), mark(x2))), MARK(s(z0)))
   MARK(sel(0, sel(x1, x2))) -> c7(A__SEL(0, a__sel(mark(x1), mark(x2))), MARK(0))

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

(146)
Obligation:
Complexity Dependency Tuples Problem

Rules:
   a__from(z0) -> cons(mark(z0), from(s(z0)))
   a__from(z0) -> from(z0)
   a__sel(0, cons(z0, z1)) -> mark(z0)
   a__sel(s(z0), cons(z1, z2)) -> a__sel(mark(z0), mark(z2))
   a__sel(z0, z1) -> sel(z0, z1)
   mark(from(z0)) -> a__from(mark(z0))
   mark(sel(z0, z1)) -> a__sel(mark(z0), mark(z1))
   mark(cons(z0, z1)) -> cons(mark(z0), z1)
   mark(s(z0)) -> s(mark(z0))
   mark(0) -> 0
Tuples:
   A__FROM(z0) -> c(MARK(z0))
   A__SEL(0, cons(z0, z1)) -> c2(MARK(z0))
   MARK(from(z0)) -> c6(A__FROM(mark(z0)), MARK(z0))
   MARK(cons(z0, z1)) -> c9(MARK(z0))
   MARK(s(z0)) -> c10(MARK(z0))
   A__SEL(s(x0), cons(x1, s(z0))) -> c3(MARK(x0))
   A__SEL(s(x0), cons(x1, 0)) -> c3(MARK(x0))
   A__SEL(s(cons(z0, z1)), cons(x1, x2)) -> c3(MARK(cons(z0, z1)))
   A__SEL(s(x0), cons(x1, s(z0))) -> c4(MARK(s(z0)))
   A__SEL(s(cons(z0, z1)), cons(x1, x2)) -> c4(MARK(x2))
   MARK(sel(x0, cons(z0, z1))) -> c7(A__SEL(mark(x0), cons(mark(z0), z1)), MARK(x0))
   MARK(sel(from(z0), x1)) -> c7(A__SEL(a__from(mark(z0)), mark(x1)), MARK(from(z0)))
   MARK(sel(sel(z0, z1), x1)) -> c7(A__SEL(a__sel(mark(z0), mark(z1)), mark(x1)), MARK(sel(z0, z1)))
   MARK(sel(s(z0), x1)) -> c7(A__SEL(s(mark(z0)), mark(x1)), MARK(s(z0)))
   MARK(sel(x0, s(z0))) -> c7(MARK(x0))
   MARK(sel(x0, 0)) -> c7(MARK(x0))
   MARK(sel(cons(z0, z1), x1)) -> c7(MARK(cons(z0, z1)))
   MARK(sel(0, x1)) -> c7(A__SEL(0, mark(x1)))
   MARK(sel(x0, from(z0))) -> c8(A__SEL(mark(x0), a__from(mark(z0))), MARK(from(z0)))
   MARK(sel(x0, sel(z0, z1))) -> c8(A__SEL(mark(x0), a__sel(mark(z0), mark(z1))), MARK(sel(z0, z1)))
   MARK(sel(x0, cons(z0, z1))) -> c8(A__SEL(mark(x0), cons(mark(z0), z1)), MARK(cons(z0, z1)))
   MARK(sel(from(z0), x1)) -> c8(A__SEL(a__from(mark(z0)), mark(x1)), MARK(x1))
   MARK(sel(sel(z0, z1), x1)) -> c8(A__SEL(a__sel(mark(z0), mark(z1)), mark(x1)), MARK(x1))
   MARK(sel(s(z0), x1)) -> c8(A__SEL(s(mark(z0)), mark(x1)), MARK(x1))
   MARK(sel(0, x1)) -> c8(A__SEL(0, mark(x1)), MARK(x1))
   MARK(sel(x0, s(z0))) -> c8(MARK(s(z0)))
   MARK(sel(cons(z0, z1), x1)) -> c8(MARK(x1))
   A__SEL(s(x0), cons(x1, from(x2))) -> c3(A__SEL(mark(x0), cons(mark(mark(x2)), from(s(mark(x2))))), MARK(x0))
   A__SEL(s(x0), cons(x1, from(from(z0)))) -> c3(A__SEL(mark(x0), a__from(a__from(mark(z0)))), MARK(x0))
   A__SEL(s(x0), cons(x1, from(sel(z0, z1)))) -> c3(A__SEL(mark(x0), a__from(a__sel(mark(z0), mark(z1)))), MARK(x0))
   A__SEL(s(x0), cons(x1, from(cons(z0, z1)))) -> c3(A__SEL(mark(x0), a__from(cons(mark(z0), z1))), MARK(x0))
   A__SEL(s(x0), cons(x1, from(s(z0)))) -> c3(A__SEL(mark(x0), a__from(s(mark(z0)))), MARK(x0))
   A__SEL(s(x0), cons(x1, from(0))) -> c3(A__SEL(mark(x0), a__from(0)), MARK(x0))
   A__SEL(s(from(z0)), cons(x1, from(x2))) -> c3(A__SEL(a__from(mark(z0)), a__from(mark(x2))), MARK(from(z0)))
   A__SEL(s(sel(z0, z1)), cons(x1, from(x2))) -> c3(A__SEL(a__sel(mark(z0), mark(z1)), a__from(mark(x2))), MARK(sel(z0, z1)))
   A__SEL(s(s(z0)), cons(x1, from(x2))) -> c3(A__SEL(s(mark(z0)), a__from(mark(x2))), MARK(s(z0)))
   A__SEL(s(x0), cons(x1, from(x2))) -> c3(MARK(x0))
   A__SEL(s(cons(z0, z1)), cons(x1, from(x2))) -> c3(MARK(cons(z0, z1)))
   A__SEL(s(0), cons(x1, from(x2))) -> c3(A__SEL(0, a__from(mark(x2))))
   A__SEL(s(x0), cons(x1, sel(x2, from(z0)))) -> c3(A__SEL(mark(x0), a__sel(mark(x2), a__from(mark(z0)))), MARK(x0))
   A__SEL(s(x0), cons(x1, sel(x2, sel(z0, z1)))) -> c3(A__SEL(mark(x0), a__sel(mark(x2), a__sel(mark(z0), mark(z1)))), MARK(x0))
   A__SEL(s(x0), cons(x1, sel(x2, cons(z0, z1)))) -> c3(A__SEL(mark(x0), a__sel(mark(x2), cons(mark(z0), z1))), MARK(x0))
   A__SEL(s(x0), cons(x1, sel(x2, s(z0)))) -> c3(A__SEL(mark(x0), a__sel(mark(x2), s(mark(z0)))), MARK(x0))
   A__SEL(s(x0), cons(x1, sel(x2, 0))) -> c3(A__SEL(mark(x0), a__sel(mark(x2), 0)), MARK(x0))
   A__SEL(s(x0), cons(x1, sel(from(z0), x3))) -> c3(A__SEL(mark(x0), a__sel(a__from(mark(z0)), mark(x3))), MARK(x0))
   A__SEL(s(x0), cons(x1, sel(sel(z0, z1), x3))) -> c3(A__SEL(mark(x0), a__sel(a__sel(mark(z0), mark(z1)), mark(x3))), MARK(x0))
   A__SEL(s(x0), cons(x1, sel(cons(z0, z1), x3))) -> c3(A__SEL(mark(x0), a__sel(cons(mark(z0), z1), mark(x3))), MARK(x0))
   A__SEL(s(x0), cons(x1, sel(s(z0), x3))) -> c3(A__SEL(mark(x0), a__sel(s(mark(z0)), mark(x3))), MARK(x0))
   A__SEL(s(x0), cons(x1, sel(0, x3))) -> c3(A__SEL(mark(x0), a__sel(0, mark(x3))), MARK(x0))
   A__SEL(s(from(z0)), cons(x1, sel(x2, x3))) -> c3(A__SEL(a__from(mark(z0)), a__sel(mark(x2), mark(x3))), MARK(from(z0)))
   A__SEL(s(sel(z0, z1)), cons(x1, sel(x2, x3))) -> c3(A__SEL(a__sel(mark(z0), mark(z1)), a__sel(mark(x2), mark(x3))), MARK(sel(z0, z1)))
   A__SEL(s(s(z0)), cons(x1, sel(x2, x3))) -> c3(A__SEL(s(mark(z0)), a__sel(mark(x2), mark(x3))), MARK(s(z0)))
   A__SEL(s(x0), cons(x1, sel(x2, x3))) -> c3(MARK(x0))
   A__SEL(s(cons(z0, z1)), cons(x1, sel(x2, x3))) -> c3(MARK(cons(z0, z1)))
   A__SEL(s(0), cons(x1, sel(x2, x3))) -> c3(A__SEL(0, a__sel(mark(x2), mark(x3))))
   A__SEL(s(x0), cons(x1, cons(from(z0), x3))) -> c3(A__SEL(mark(x0), cons(a__from(mark(z0)), x3)), MARK(x0))
   A__SEL(s(x0), cons(x1, cons(sel(z0, z1), x3))) -> c3(A__SEL(mark(x0), cons(a__sel(mark(z0), mark(z1)), x3)), MARK(x0))
   A__SEL(s(x0), cons(x1, cons(cons(z0, z1), x3))) -> c3(A__SEL(mark(x0), cons(cons(mark(z0), z1), x3)), MARK(x0))
   A__SEL(s(x0), cons(x1, cons(s(z0), x3))) -> c3(A__SEL(mark(x0), cons(s(mark(z0)), x3)), MARK(x0))
   A__SEL(s(x0), cons(x1, cons(0, x3))) -> c3(A__SEL(mark(x0), cons(0, x3)), MARK(x0))
   A__SEL(s(from(z0)), cons(x1, cons(x2, x3))) -> c3(A__SEL(a__from(mark(z0)), cons(mark(x2), x3)), MARK(from(z0)))
   A__SEL(s(sel(z0, z1)), cons(x1, cons(x2, x3))) -> c3(A__SEL(a__sel(mark(z0), mark(z1)), cons(mark(x2), x3)), MARK(sel(z0, z1)))
   A__SEL(s(s(z0)), cons(x1, cons(x2, x3))) -> c3(A__SEL(s(mark(z0)), cons(mark(x2), x3)), MARK(s(z0)))
   A__SEL(s(cons(z0, z1)), cons(x1, cons(x2, x3))) -> c3(MARK(cons(z0, z1)))
   A__SEL(s(0), cons(x1, cons(x2, x3))) -> c3(A__SEL(0, cons(mark(x2), x3)))
   A__SEL(s(from(from(z0))), cons(x1, x2)) -> c3(A__SEL(a__from(a__from(mark(z0))), mark(x2)), MARK(from(from(z0))))
   A__SEL(s(from(sel(z0, z1))), cons(x1, x2)) -> c3(A__SEL(a__from(a__sel(mark(z0), mark(z1))), mark(x2)), MARK(from(sel(z0, z1))))
   A__SEL(s(from(cons(z0, z1))), cons(x1, x2)) -> c3(A__SEL(a__from(cons(mark(z0), z1)), mark(x2)), MARK(from(cons(z0, z1))))
   A__SEL(s(from(s(z0))), cons(x1, x2)) -> c3(A__SEL(a__from(s(mark(z0))), mark(x2)), MARK(from(s(z0))))
   A__SEL(s(from(0)), cons(x1, x2)) -> c3(A__SEL(a__from(0), mark(x2)), MARK(from(0)))
   A__SEL(s(from(x0)), cons(x1, x2)) -> c3(MARK(from(x0)))
   A__SEL(s(from(x0)), cons(x1, s(z0))) -> c3(MARK(from(x0)))
   A__SEL(s(from(x0)), cons(x1, 0)) -> c3(MARK(from(x0)))
   A__SEL(s(sel(x0, from(z0))), cons(x2, x3)) -> c3(A__SEL(a__sel(mark(x0), a__from(mark(z0))), mark(x3)), MARK(sel(x0, from(z0))))
   A__SEL(s(sel(x0, sel(z0, z1))), cons(x2, x3)) -> c3(A__SEL(a__sel(mark(x0), a__sel(mark(z0), mark(z1))), mark(x3)), MARK(sel(x0, sel(z0, z1))))
   A__SEL(s(sel(x0, cons(z0, z1))), cons(x2, x3)) -> c3(A__SEL(a__sel(mark(x0), cons(mark(z0), z1)), mark(x3)), MARK(sel(x0, cons(z0, z1))))
   A__SEL(s(sel(x0, s(z0))), cons(x2, x3)) -> c3(A__SEL(a__sel(mark(x0), s(mark(z0))), mark(x3)), MARK(sel(x0, s(z0))))
   A__SEL(s(sel(x0, 0)), cons(x2, x3)) -> c3(A__SEL(a__sel(mark(x0), 0), mark(x3)), MARK(sel(x0, 0)))
   A__SEL(s(sel(from(z0), x1)), cons(x2, x3)) -> c3(A__SEL(a__sel(a__from(mark(z0)), mark(x1)), mark(x3)), MARK(sel(from(z0), x1)))
   A__SEL(s(sel(sel(z0, z1), x1)), cons(x2, x3)) -> c3(A__SEL(a__sel(a__sel(mark(z0), mark(z1)), mark(x1)), mark(x3)), MARK(sel(sel(z0, z1), x1)))
   A__SEL(s(sel(cons(z0, z1), x1)), cons(x2, x3)) -> c3(A__SEL(a__sel(cons(mark(z0), z1), mark(x1)), mark(x3)), MARK(sel(cons(z0, z1), x1)))
   A__SEL(s(sel(s(z0), x1)), cons(x2, x3)) -> c3(A__SEL(a__sel(s(mark(z0)), mark(x1)), mark(x3)), MARK(sel(s(z0), x1)))
   A__SEL(s(sel(0, x1)), cons(x2, x3)) -> c3(A__SEL(a__sel(0, mark(x1)), mark(x3)), MARK(sel(0, x1)))
   A__SEL(s(sel(x0, x1)), cons(x2, s(z0))) -> c3(MARK(sel(x0, x1)))
   A__SEL(s(sel(x0, x1)), cons(x2, 0)) -> c3(MARK(sel(x0, x1)))
   A__SEL(s(sel(x0, x1)), cons(x2, x3)) -> c3(MARK(sel(x0, x1)))
   A__SEL(s(s(from(z0))), cons(x1, x2)) -> c3(A__SEL(s(a__from(mark(z0))), mark(x2)), MARK(s(from(z0))))
   A__SEL(s(s(sel(z0, z1))), cons(x1, x2)) -> c3(A__SEL(s(a__sel(mark(z0), mark(z1))), mark(x2)), MARK(s(sel(z0, z1))))
   A__SEL(s(s(cons(z0, z1))), cons(x1, x2)) -> c3(A__SEL(s(cons(mark(z0), z1)), mark(x2)), MARK(s(cons(z0, z1))))
   A__SEL(s(s(s(z0))), cons(x1, x2)) -> c3(A__SEL(s(s(mark(z0))), mark(x2)), MARK(s(s(z0))))
   A__SEL(s(s(0)), cons(x1, x2)) -> c3(A__SEL(s(0), mark(x2)), MARK(s(0)))
   A__SEL(s(s(x0)), cons(x1, x2)) -> c3(MARK(s(x0)))
   A__SEL(s(s(x0)), cons(x1, s(z0))) -> c3(MARK(s(x0)))
   A__SEL(s(s(x0)), cons(x1, 0)) -> c3(MARK(s(x0)))
   A__SEL(s(x0), cons(x1, from(x2))) -> c4(A__SEL(mark(x0), cons(mark(mark(x2)), from(s(mark(x2))))), MARK(from(x2)))
   A__SEL(s(x0), cons(x1, from(from(z0)))) -> c4(A__SEL(mark(x0), a__from(a__from(mark(z0)))), MARK(from(from(z0))))
   A__SEL(s(x0), cons(x1, from(sel(z0, z1)))) -> c4(A__SEL(mark(x0), a__from(a__sel(mark(z0), mark(z1)))), MARK(from(sel(z0, z1))))
   A__SEL(s(x0), cons(x1, from(cons(z0, z1)))) -> c4(A__SEL(mark(x0), a__from(cons(mark(z0), z1))), MARK(from(cons(z0, z1))))
   A__SEL(s(x0), cons(x1, from(s(z0)))) -> c4(A__SEL(mark(x0), a__from(s(mark(z0)))), MARK(from(s(z0))))
   A__SEL(s(x0), cons(x1, from(0))) -> c4(A__SEL(mark(x0), a__from(0)), MARK(from(0)))
   A__SEL(s(from(z0)), cons(x1, from(x2))) -> c4(A__SEL(a__from(mark(z0)), a__from(mark(x2))), MARK(from(x2)))
   A__SEL(s(sel(z0, z1)), cons(x1, from(x2))) -> c4(A__SEL(a__sel(mark(z0), mark(z1)), a__from(mark(x2))), MARK(from(x2)))
   A__SEL(s(s(z0)), cons(x1, from(x2))) -> c4(A__SEL(s(mark(z0)), a__from(mark(x2))), MARK(from(x2)))
   A__SEL(s(0), cons(x1, from(x2))) -> c4(A__SEL(0, a__from(mark(x2))), MARK(from(x2)))
   A__SEL(s(x0), cons(x1, from(x2))) -> c4(MARK(from(x2)))
   A__SEL(s(cons(z0, z1)), cons(x1, from(x2))) -> c4(MARK(from(x2)))
   A__SEL(s(x0), cons(x1, sel(x2, from(z0)))) -> c4(A__SEL(mark(x0), a__sel(mark(x2), a__from(mark(z0)))), MARK(sel(x2, from(z0))))
   A__SEL(s(x0), cons(x1, sel(x2, sel(z0, z1)))) -> c4(A__SEL(mark(x0), a__sel(mark(x2), a__sel(mark(z0), mark(z1)))), MARK(sel(x2, sel(z0, z1))))
   A__SEL(s(x0), cons(x1, sel(x2, cons(z0, z1)))) -> c4(A__SEL(mark(x0), a__sel(mark(x2), cons(mark(z0), z1))), MARK(sel(x2, cons(z0, z1))))
   A__SEL(s(x0), cons(x1, sel(x2, s(z0)))) -> c4(A__SEL(mark(x0), a__sel(mark(x2), s(mark(z0)))), MARK(sel(x2, s(z0))))
   A__SEL(s(x0), cons(x1, sel(x2, 0))) -> c4(A__SEL(mark(x0), a__sel(mark(x2), 0)), MARK(sel(x2, 0)))
   A__SEL(s(x0), cons(x1, sel(from(z0), x3))) -> c4(A__SEL(mark(x0), a__sel(a__from(mark(z0)), mark(x3))), MARK(sel(from(z0), x3)))
   A__SEL(s(x0), cons(x1, sel(sel(z0, z1), x3))) -> c4(A__SEL(mark(x0), a__sel(a__sel(mark(z0), mark(z1)), mark(x3))), MARK(sel(sel(z0, z1), x3)))
   A__SEL(s(x0), cons(x1, sel(cons(z0, z1), x3))) -> c4(A__SEL(mark(x0), a__sel(cons(mark(z0), z1), mark(x3))), MARK(sel(cons(z0, z1), x3)))
   A__SEL(s(x0), cons(x1, sel(s(z0), x3))) -> c4(A__SEL(mark(x0), a__sel(s(mark(z0)), mark(x3))), MARK(sel(s(z0), x3)))
   A__SEL(s(x0), cons(x1, sel(0, x3))) -> c4(A__SEL(mark(x0), a__sel(0, mark(x3))), MARK(sel(0, x3)))
   A__SEL(s(from(z0)), cons(x1, sel(x2, x3))) -> c4(A__SEL(a__from(mark(z0)), a__sel(mark(x2), mark(x3))), MARK(sel(x2, x3)))
   A__SEL(s(sel(z0, z1)), cons(x1, sel(x2, x3))) -> c4(A__SEL(a__sel(mark(z0), mark(z1)), a__sel(mark(x2), mark(x3))), MARK(sel(x2, x3)))
   A__SEL(s(s(z0)), cons(x1, sel(x2, x3))) -> c4(A__SEL(s(mark(z0)), a__sel(mark(x2), mark(x3))), MARK(sel(x2, x3)))
   A__SEL(s(0), cons(x1, sel(x2, x3))) -> c4(A__SEL(0, a__sel(mark(x2), mark(x3))), MARK(sel(x2, x3)))
   A__SEL(s(x0), cons(x1, sel(x2, x3))) -> c4(MARK(sel(x2, x3)))
   A__SEL(s(cons(z0, z1)), cons(x1, sel(x2, x3))) -> c4(MARK(sel(x2, x3)))
   A__SEL(s(x0), cons(x1, cons(from(z0), x3))) -> c4(A__SEL(mark(x0), cons(a__from(mark(z0)), x3)), MARK(cons(from(z0), x3)))
   A__SEL(s(x0), cons(x1, cons(sel(z0, z1), x3))) -> c4(A__SEL(mark(x0), cons(a__sel(mark(z0), mark(z1)), x3)), MARK(cons(sel(z0, z1), x3)))
   A__SEL(s(x0), cons(x1, cons(cons(z0, z1), x3))) -> c4(A__SEL(mark(x0), cons(cons(mark(z0), z1), x3)), MARK(cons(cons(z0, z1), x3)))
   A__SEL(s(x0), cons(x1, cons(s(z0), x3))) -> c4(A__SEL(mark(x0), cons(s(mark(z0)), x3)), MARK(cons(s(z0), x3)))
   A__SEL(s(x0), cons(x1, cons(0, x3))) -> c4(A__SEL(mark(x0), cons(0, x3)), MARK(cons(0, x3)))
   A__SEL(s(from(z0)), cons(x1, cons(x2, x3))) -> c4(A__SEL(a__from(mark(z0)), cons(mark(x2), x3)), MARK(cons(x2, x3)))
   A__SEL(s(sel(z0, z1)), cons(x1, cons(x2, x3))) -> c4(A__SEL(a__sel(mark(z0), mark(z1)), cons(mark(x2), x3)), MARK(cons(x2, x3)))
   A__SEL(s(s(z0)), cons(x1, cons(x2, x3))) -> c4(A__SEL(s(mark(z0)), cons(mark(x2), x3)), MARK(cons(x2, x3)))
   A__SEL(s(0), cons(x1, cons(x2, x3))) -> c4(A__SEL(0, cons(mark(x2), x3)), MARK(cons(x2, x3)))
   A__SEL(s(x0), cons(x1, cons(x2, x3))) -> c4(MARK(cons(x2, x3)))
   A__SEL(s(cons(z0, z1)), cons(x1, cons(x2, x3))) -> c4(MARK(cons(x2, x3)))
   A__SEL(s(from(from(z0))), cons(x1, x2)) -> c4(A__SEL(a__from(a__from(mark(z0))), mark(x2)), MARK(x2))
   A__SEL(s(from(sel(z0, z1))), cons(x1, x2)) -> c4(A__SEL(a__from(a__sel(mark(z0), mark(z1))), mark(x2)), MARK(x2))
   A__SEL(s(from(cons(z0, z1))), cons(x1, x2)) -> c4(A__SEL(a__from(cons(mark(z0), z1)), mark(x2)), MARK(x2))
   A__SEL(s(from(s(z0))), cons(x1, x2)) -> c4(A__SEL(a__from(s(mark(z0))), mark(x2)), MARK(x2))
   A__SEL(s(from(0)), cons(x1, x2)) -> c4(A__SEL(a__from(0), mark(x2)), MARK(x2))
   A__SEL(s(from(x0)), cons(x1, s(z0))) -> c4(MARK(s(z0)))
   A__SEL(s(from(x0)), cons(x1, x2)) -> c4(MARK(x2))
   A__SEL(s(sel(x0, from(z0))), cons(x2, x3)) -> c4(A__SEL(a__sel(mark(x0), a__from(mark(z0))), mark(x3)), MARK(x3))
   A__SEL(s(sel(x0, sel(z0, z1))), cons(x2, x3)) -> c4(A__SEL(a__sel(mark(x0), a__sel(mark(z0), mark(z1))), mark(x3)), MARK(x3))
   A__SEL(s(sel(x0, cons(z0, z1))), cons(x2, x3)) -> c4(A__SEL(a__sel(mark(x0), cons(mark(z0), z1)), mark(x3)), MARK(x3))
   A__SEL(s(sel(x0, s(z0))), cons(x2, x3)) -> c4(A__SEL(a__sel(mark(x0), s(mark(z0))), mark(x3)), MARK(x3))
   A__SEL(s(sel(x0, 0)), cons(x2, x3)) -> c4(A__SEL(a__sel(mark(x0), 0), mark(x3)), MARK(x3))
   A__SEL(s(sel(from(z0), x1)), cons(x2, x3)) -> c4(A__SEL(a__sel(a__from(mark(z0)), mark(x1)), mark(x3)), MARK(x3))
   A__SEL(s(sel(sel(z0, z1), x1)), cons(x2, x3)) -> c4(A__SEL(a__sel(a__sel(mark(z0), mark(z1)), mark(x1)), mark(x3)), MARK(x3))
   A__SEL(s(sel(cons(z0, z1), x1)), cons(x2, x3)) -> c4(A__SEL(a__sel(cons(mark(z0), z1), mark(x1)), mark(x3)), MARK(x3))
   A__SEL(s(sel(s(z0), x1)), cons(x2, x3)) -> c4(A__SEL(a__sel(s(mark(z0)), mark(x1)), mark(x3)), MARK(x3))
   A__SEL(s(sel(0, x1)), cons(x2, x3)) -> c4(A__SEL(a__sel(0, mark(x1)), mark(x3)), MARK(x3))
   A__SEL(s(sel(x0, x1)), cons(x2, s(z0))) -> c4(MARK(s(z0)))
   A__SEL(s(sel(x0, x1)), cons(x2, x3)) -> c4(MARK(x3))
   A__SEL(s(s(from(z0))), cons(x1, x2)) -> c4(A__SEL(s(a__from(mark(z0))), mark(x2)), MARK(x2))
   A__SEL(s(s(sel(z0, z1))), cons(x1, x2)) -> c4(A__SEL(s(a__sel(mark(z0), mark(z1))), mark(x2)), MARK(x2))
   A__SEL(s(s(cons(z0, z1))), cons(x1, x2)) -> c4(A__SEL(s(cons(mark(z0), z1)), mark(x2)), MARK(x2))
   A__SEL(s(s(s(z0))), cons(x1, x2)) -> c4(A__SEL(s(s(mark(z0))), mark(x2)), MARK(x2))
   A__SEL(s(s(0)), cons(x1, x2)) -> c4(A__SEL(s(0), mark(x2)), MARK(x2))
   A__SEL(s(s(x0)), cons(x1, s(z0))) -> c4(MARK(s(z0)))
   A__SEL(s(0), cons(x0, s(z0))) -> c4(MARK(s(z0)))
   MARK(sel(x0, from(x1))) -> c7(A__SEL(mark(x0), cons(mark(mark(x1)), from(s(mark(x1))))), MARK(x0))
   MARK(sel(x0, from(from(z0)))) -> c7(A__SEL(mark(x0), a__from(a__from(mark(z0)))), MARK(x0))
   MARK(sel(x0, from(sel(z0, z1)))) -> c7(A__SEL(mark(x0), a__from(a__sel(mark(z0), mark(z1)))), MARK(x0))
   MARK(sel(x0, from(cons(z0, z1)))) -> c7(A__SEL(mark(x0), a__from(cons(mark(z0), z1))), MARK(x0))
   MARK(sel(x0, from(s(z0)))) -> c7(A__SEL(mark(x0), a__from(s(mark(z0)))), MARK(x0))
   MARK(sel(x0, from(0))) -> c7(A__SEL(mark(x0), a__from(0)), MARK(x0))
   MARK(sel(from(z0), from(x1))) -> c7(A__SEL(a__from(mark(z0)), a__from(mark(x1))), MARK(from(z0)))
   MARK(sel(sel(z0, z1), from(x1))) -> c7(A__SEL(a__sel(mark(z0), mark(z1)), a__from(mark(x1))), MARK(sel(z0, z1)))
   MARK(sel(s(z0), from(x1))) -> c7(A__SEL(s(mark(z0)), a__from(mark(x1))), MARK(s(z0)))
   MARK(sel(x0, from(x1))) -> c7(MARK(x0))
   MARK(sel(cons(z0, z1), from(x1))) -> c7(MARK(cons(z0, z1)))
   MARK(sel(0, from(x1))) -> c7(A__SEL(0, a__from(mark(x1))))
   MARK(sel(x0, sel(x1, x2))) -> c7(A__SEL(mark(x0), sel(mark(x1), mark(x2))), MARK(x0))
   MARK(sel(x0, sel(x1, from(z0)))) -> c7(A__SEL(mark(x0), a__sel(mark(x1), a__from(mark(z0)))), MARK(x0))
   MARK(sel(x0, sel(x1, sel(z0, z1)))) -> c7(A__SEL(mark(x0), a__sel(mark(x1), a__sel(mark(z0), mark(z1)))), MARK(x0))
   MARK(sel(x0, sel(x1, cons(z0, z1)))) -> c7(A__SEL(mark(x0), a__sel(mark(x1), cons(mark(z0), z1))), MARK(x0))
   MARK(sel(x0, sel(x1, s(z0)))) -> c7(A__SEL(mark(x0), a__sel(mark(x1), s(mark(z0)))), MARK(x0))
   MARK(sel(x0, sel(x1, 0))) -> c7(A__SEL(mark(x0), a__sel(mark(x1), 0)), MARK(x0))
   MARK(sel(x0, sel(from(z0), x2))) -> c7(A__SEL(mark(x0), a__sel(a__from(mark(z0)), mark(x2))), MARK(x0))
   MARK(sel(x0, sel(sel(z0, z1), x2))) -> c7(A__SEL(mark(x0), a__sel(a__sel(mark(z0), mark(z1)), mark(x2))), MARK(x0))
   MARK(sel(x0, sel(cons(z0, z1), x2))) -> c7(A__SEL(mark(x0), a__sel(cons(mark(z0), z1), mark(x2))), MARK(x0))
   MARK(sel(x0, sel(s(z0), x2))) -> c7(A__SEL(mark(x0), a__sel(s(mark(z0)), mark(x2))), MARK(x0))
   MARK(sel(x0, sel(0, x2))) -> c7(A__SEL(mark(x0), a__sel(0, mark(x2))), MARK(x0))
   MARK(sel(from(z0), sel(x1, x2))) -> c7(A__SEL(a__from(mark(z0)), a__sel(mark(x1), mark(x2))), MARK(from(z0)))
   MARK(sel(sel(z0, z1), sel(x1, x2))) -> c7(A__SEL(a__sel(mark(z0), mark(z1)), a__sel(mark(x1), mark(x2))), MARK(sel(z0, z1)))
   MARK(sel(cons(z0, z1), sel(x1, x2))) -> c7(A__SEL(cons(mark(z0), z1), a__sel(mark(x1), mark(x2))), MARK(cons(z0, z1)))
   MARK(sel(s(z0), sel(x1, x2))) -> c7(A__SEL(s(mark(z0)), a__sel(mark(x1), mark(x2))), MARK(s(z0)))
   MARK(sel(0, sel(x1, x2))) -> c7(A__SEL(0, a__sel(mark(x1), mark(x2))), MARK(0))
S tuples:
   A__FROM(z0) -> c(MARK(z0))
   A__SEL(0, cons(z0, z1)) -> c2(MARK(z0))
   MARK(from(z0)) -> c6(A__FROM(mark(z0)), MARK(z0))
   MARK(cons(z0, z1)) -> c9(MARK(z0))
   MARK(s(z0)) -> c10(MARK(z0))
   A__SEL(s(x0), cons(x1, s(z0))) -> c3(MARK(x0))
   A__SEL(s(x0), cons(x1, 0)) -> c3(MARK(x0))
   A__SEL(s(cons(z0, z1)), cons(x1, x2)) -> c3(MARK(cons(z0, z1)))
   A__SEL(s(x0), cons(x1, s(z0))) -> c4(MARK(s(z0)))
   A__SEL(s(cons(z0, z1)), cons(x1, x2)) -> c4(MARK(x2))
   MARK(sel(x0, cons(z0, z1))) -> c7(A__SEL(mark(x0), cons(mark(z0), z1)), MARK(x0))
   MARK(sel(from(z0), x1)) -> c7(A__SEL(a__from(mark(z0)), mark(x1)), MARK(from(z0)))
   MARK(sel(sel(z0, z1), x1)) -> c7(A__SEL(a__sel(mark(z0), mark(z1)), mark(x1)), MARK(sel(z0, z1)))
   MARK(sel(s(z0), x1)) -> c7(A__SEL(s(mark(z0)), mark(x1)), MARK(s(z0)))
   MARK(sel(x0, s(z0))) -> c7(MARK(x0))
   MARK(sel(x0, 0)) -> c7(MARK(x0))
   MARK(sel(cons(z0, z1), x1)) -> c7(MARK(cons(z0, z1)))
   MARK(sel(0, x1)) -> c7(A__SEL(0, mark(x1)))
   MARK(sel(x0, from(z0))) -> c8(A__SEL(mark(x0), a__from(mark(z0))), MARK(from(z0)))
   MARK(sel(x0, sel(z0, z1))) -> c8(A__SEL(mark(x0), a__sel(mark(z0), mark(z1))), MARK(sel(z0, z1)))
   MARK(sel(x0, cons(z0, z1))) -> c8(A__SEL(mark(x0), cons(mark(z0), z1)), MARK(cons(z0, z1)))
   MARK(sel(from(z0), x1)) -> c8(A__SEL(a__from(mark(z0)), mark(x1)), MARK(x1))
   MARK(sel(sel(z0, z1), x1)) -> c8(A__SEL(a__sel(mark(z0), mark(z1)), mark(x1)), MARK(x1))
   MARK(sel(s(z0), x1)) -> c8(A__SEL(s(mark(z0)), mark(x1)), MARK(x1))
   MARK(sel(0, x1)) -> c8(A__SEL(0, mark(x1)), MARK(x1))
   MARK(sel(x0, s(z0))) -> c8(MARK(s(z0)))
   MARK(sel(cons(z0, z1), x1)) -> c8(MARK(x1))
   A__SEL(s(x0), cons(x1, from(x2))) -> c3(A__SEL(mark(x0), cons(mark(mark(x2)), from(s(mark(x2))))), MARK(x0))
   A__SEL(s(x0), cons(x1, from(from(z0)))) -> c3(A__SEL(mark(x0), a__from(a__from(mark(z0)))), MARK(x0))
   A__SEL(s(x0), cons(x1, from(sel(z0, z1)))) -> c3(A__SEL(mark(x0), a__from(a__sel(mark(z0), mark(z1)))), MARK(x0))
   A__SEL(s(x0), cons(x1, from(cons(z0, z1)))) -> c3(A__SEL(mark(x0), a__from(cons(mark(z0), z1))), MARK(x0))
   A__SEL(s(x0), cons(x1, from(s(z0)))) -> c3(A__SEL(mark(x0), a__from(s(mark(z0)))), MARK(x0))
   A__SEL(s(x0), cons(x1, from(0))) -> c3(A__SEL(mark(x0), a__from(0)), MARK(x0))
   A__SEL(s(from(z0)), cons(x1, from(x2))) -> c3(A__SEL(a__from(mark(z0)), a__from(mark(x2))), MARK(from(z0)))
   A__SEL(s(sel(z0, z1)), cons(x1, from(x2))) -> c3(A__SEL(a__sel(mark(z0), mark(z1)), a__from(mark(x2))), MARK(sel(z0, z1)))
   A__SEL(s(s(z0)), cons(x1, from(x2))) -> c3(A__SEL(s(mark(z0)), a__from(mark(x2))), MARK(s(z0)))
   A__SEL(s(x0), cons(x1, from(x2))) -> c3(MARK(x0))
   A__SEL(s(cons(z0, z1)), cons(x1, from(x2))) -> c3(MARK(cons(z0, z1)))
   A__SEL(s(0), cons(x1, from(x2))) -> c3(A__SEL(0, a__from(mark(x2))))
   A__SEL(s(x0), cons(x1, sel(x2, from(z0)))) -> c3(A__SEL(mark(x0), a__sel(mark(x2), a__from(mark(z0)))), MARK(x0))
   A__SEL(s(x0), cons(x1, sel(x2, sel(z0, z1)))) -> c3(A__SEL(mark(x0), a__sel(mark(x2), a__sel(mark(z0), mark(z1)))), MARK(x0))
   A__SEL(s(x0), cons(x1, sel(x2, cons(z0, z1)))) -> c3(A__SEL(mark(x0), a__sel(mark(x2), cons(mark(z0), z1))), MARK(x0))
   A__SEL(s(x0), cons(x1, sel(x2, s(z0)))) -> c3(A__SEL(mark(x0), a__sel(mark(x2), s(mark(z0)))), MARK(x0))
   A__SEL(s(x0), cons(x1, sel(x2, 0))) -> c3(A__SEL(mark(x0), a__sel(mark(x2), 0)), MARK(x0))
   A__SEL(s(x0), cons(x1, sel(from(z0), x3))) -> c3(A__SEL(mark(x0), a__sel(a__from(mark(z0)), mark(x3))), MARK(x0))
   A__SEL(s(x0), cons(x1, sel(sel(z0, z1), x3))) -> c3(A__SEL(mark(x0), a__sel(a__sel(mark(z0), mark(z1)), mark(x3))), MARK(x0))
   A__SEL(s(x0), cons(x1, sel(cons(z0, z1), x3))) -> c3(A__SEL(mark(x0), a__sel(cons(mark(z0), z1), mark(x3))), MARK(x0))
   A__SEL(s(x0), cons(x1, sel(s(z0), x3))) -> c3(A__SEL(mark(x0), a__sel(s(mark(z0)), mark(x3))), MARK(x0))
   A__SEL(s(x0), cons(x1, sel(0, x3))) -> c3(A__SEL(mark(x0), a__sel(0, mark(x3))), MARK(x0))
   A__SEL(s(from(z0)), cons(x1, sel(x2, x3))) -> c3(A__SEL(a__from(mark(z0)), a__sel(mark(x2), mark(x3))), MARK(from(z0)))
   A__SEL(s(sel(z0, z1)), cons(x1, sel(x2, x3))) -> c3(A__SEL(a__sel(mark(z0), mark(z1)), a__sel(mark(x2), mark(x3))), MARK(sel(z0, z1)))
   A__SEL(s(s(z0)), cons(x1, sel(x2, x3))) -> c3(A__SEL(s(mark(z0)), a__sel(mark(x2), mark(x3))), MARK(s(z0)))
   A__SEL(s(x0), cons(x1, sel(x2, x3))) -> c3(MARK(x0))
   A__SEL(s(cons(z0, z1)), cons(x1, sel(x2, x3))) -> c3(MARK(cons(z0, z1)))
   A__SEL(s(0), cons(x1, sel(x2, x3))) -> c3(A__SEL(0, a__sel(mark(x2), mark(x3))))
   A__SEL(s(x0), cons(x1, cons(from(z0), x3))) -> c3(A__SEL(mark(x0), cons(a__from(mark(z0)), x3)), MARK(x0))
   A__SEL(s(x0), cons(x1, cons(sel(z0, z1), x3))) -> c3(A__SEL(mark(x0), cons(a__sel(mark(z0), mark(z1)), x3)), MARK(x0))
   A__SEL(s(x0), cons(x1, cons(cons(z0, z1), x3))) -> c3(A__SEL(mark(x0), cons(cons(mark(z0), z1), x3)), MARK(x0))
   A__SEL(s(x0), cons(x1, cons(s(z0), x3))) -> c3(A__SEL(mark(x0), cons(s(mark(z0)), x3)), MARK(x0))
   A__SEL(s(x0), cons(x1, cons(0, x3))) -> c3(A__SEL(mark(x0), cons(0, x3)), MARK(x0))
   A__SEL(s(from(z0)), cons(x1, cons(x2, x3))) -> c3(A__SEL(a__from(mark(z0)), cons(mark(x2), x3)), MARK(from(z0)))
   A__SEL(s(sel(z0, z1)), cons(x1, cons(x2, x3))) -> c3(A__SEL(a__sel(mark(z0), mark(z1)), cons(mark(x2), x3)), MARK(sel(z0, z1)))
   A__SEL(s(s(z0)), cons(x1, cons(x2, x3))) -> c3(A__SEL(s(mark(z0)), cons(mark(x2), x3)), MARK(s(z0)))
   A__SEL(s(cons(z0, z1)), cons(x1, cons(x2, x3))) -> c3(MARK(cons(z0, z1)))
   A__SEL(s(0), cons(x1, cons(x2, x3))) -> c3(A__SEL(0, cons(mark(x2), x3)))
   A__SEL(s(from(from(z0))), cons(x1, x2)) -> c3(A__SEL(a__from(a__from(mark(z0))), mark(x2)), MARK(from(from(z0))))
   A__SEL(s(from(sel(z0, z1))), cons(x1, x2)) -> c3(A__SEL(a__from(a__sel(mark(z0), mark(z1))), mark(x2)), MARK(from(sel(z0, z1))))
   A__SEL(s(from(cons(z0, z1))), cons(x1, x2)) -> c3(A__SEL(a__from(cons(mark(z0), z1)), mark(x2)), MARK(from(cons(z0, z1))))
   A__SEL(s(from(s(z0))), cons(x1, x2)) -> c3(A__SEL(a__from(s(mark(z0))), mark(x2)), MARK(from(s(z0))))
   A__SEL(s(from(0)), cons(x1, x2)) -> c3(A__SEL(a__from(0), mark(x2)), MARK(from(0)))
   A__SEL(s(from(x0)), cons(x1, x2)) -> c3(MARK(from(x0)))
   A__SEL(s(from(x0)), cons(x1, s(z0))) -> c3(MARK(from(x0)))
   A__SEL(s(from(x0)), cons(x1, 0)) -> c3(MARK(from(x0)))
   A__SEL(s(sel(x0, from(z0))), cons(x2, x3)) -> c3(A__SEL(a__sel(mark(x0), a__from(mark(z0))), mark(x3)), MARK(sel(x0, from(z0))))
   A__SEL(s(sel(x0, sel(z0, z1))), cons(x2, x3)) -> c3(A__SEL(a__sel(mark(x0), a__sel(mark(z0), mark(z1))), mark(x3)), MARK(sel(x0, sel(z0, z1))))
   A__SEL(s(sel(x0, cons(z0, z1))), cons(x2, x3)) -> c3(A__SEL(a__sel(mark(x0), cons(mark(z0), z1)), mark(x3)), MARK(sel(x0, cons(z0, z1))))
   A__SEL(s(sel(x0, s(z0))), cons(x2, x3)) -> c3(A__SEL(a__sel(mark(x0), s(mark(z0))), mark(x3)), MARK(sel(x0, s(z0))))
   A__SEL(s(sel(x0, 0)), cons(x2, x3)) -> c3(A__SEL(a__sel(mark(x0), 0), mark(x3)), MARK(sel(x0, 0)))
   A__SEL(s(sel(from(z0), x1)), cons(x2, x3)) -> c3(A__SEL(a__sel(a__from(mark(z0)), mark(x1)), mark(x3)), MARK(sel(from(z0), x1)))
   A__SEL(s(sel(sel(z0, z1), x1)), cons(x2, x3)) -> c3(A__SEL(a__sel(a__sel(mark(z0), mark(z1)), mark(x1)), mark(x3)), MARK(sel(sel(z0, z1), x1)))
   A__SEL(s(sel(cons(z0, z1), x1)), cons(x2, x3)) -> c3(A__SEL(a__sel(cons(mark(z0), z1), mark(x1)), mark(x3)), MARK(sel(cons(z0, z1), x1)))
   A__SEL(s(sel(s(z0), x1)), cons(x2, x3)) -> c3(A__SEL(a__sel(s(mark(z0)), mark(x1)), mark(x3)), MARK(sel(s(z0), x1)))
   A__SEL(s(sel(0, x1)), cons(x2, x3)) -> c3(A__SEL(a__sel(0, mark(x1)), mark(x3)), MARK(sel(0, x1)))
   A__SEL(s(sel(x0, x1)), cons(x2, s(z0))) -> c3(MARK(sel(x0, x1)))
   A__SEL(s(sel(x0, x1)), cons(x2, 0)) -> c3(MARK(sel(x0, x1)))
   A__SEL(s(sel(x0, x1)), cons(x2, x3)) -> c3(MARK(sel(x0, x1)))
   A__SEL(s(s(from(z0))), cons(x1, x2)) -> c3(A__SEL(s(a__from(mark(z0))), mark(x2)), MARK(s(from(z0))))
   A__SEL(s(s(sel(z0, z1))), cons(x1, x2)) -> c3(A__SEL(s(a__sel(mark(z0), mark(z1))), mark(x2)), MARK(s(sel(z0, z1))))
   A__SEL(s(s(cons(z0, z1))), cons(x1, x2)) -> c3(A__SEL(s(cons(mark(z0), z1)), mark(x2)), MARK(s(cons(z0, z1))))
   A__SEL(s(s(s(z0))), cons(x1, x2)) -> c3(A__SEL(s(s(mark(z0))), mark(x2)), MARK(s(s(z0))))
   A__SEL(s(s(0)), cons(x1, x2)) -> c3(A__SEL(s(0), mark(x2)), MARK(s(0)))
   A__SEL(s(s(x0)), cons(x1, x2)) -> c3(MARK(s(x0)))
   A__SEL(s(s(x0)), cons(x1, s(z0))) -> c3(MARK(s(x0)))
   A__SEL(s(s(x0)), cons(x1, 0)) -> c3(MARK(s(x0)))
   A__SEL(s(x0), cons(x1, from(x2))) -> c4(A__SEL(mark(x0), cons(mark(mark(x2)), from(s(mark(x2))))), MARK(from(x2)))
   A__SEL(s(x0), cons(x1, from(from(z0)))) -> c4(A__SEL(mark(x0), a__from(a__from(mark(z0)))), MARK(from(from(z0))))
   A__SEL(s(x0), cons(x1, from(sel(z0, z1)))) -> c4(A__SEL(mark(x0), a__from(a__sel(mark(z0), mark(z1)))), MARK(from(sel(z0, z1))))
   A__SEL(s(x0), cons(x1, from(cons(z0, z1)))) -> c4(A__SEL(mark(x0), a__from(cons(mark(z0), z1))), MARK(from(cons(z0, z1))))
   A__SEL(s(x0), cons(x1, from(s(z0)))) -> c4(A__SEL(mark(x0), a__from(s(mark(z0)))), MARK(from(s(z0))))
   A__SEL(s(x0), cons(x1, from(0))) -> c4(A__SEL(mark(x0), a__from(0)), MARK(from(0)))
   A__SEL(s(from(z0)), cons(x1, from(x2))) -> c4(A__SEL(a__from(mark(z0)), a__from(mark(x2))), MARK(from(x2)))
   A__SEL(s(sel(z0, z1)), cons(x1, from(x2))) -> c4(A__SEL(a__sel(mark(z0), mark(z1)), a__from(mark(x2))), MARK(from(x2)))
   A__SEL(s(s(z0)), cons(x1, from(x2))) -> c4(A__SEL(s(mark(z0)), a__from(mark(x2))), MARK(from(x2)))
   A__SEL(s(0), cons(x1, from(x2))) -> c4(A__SEL(0, a__from(mark(x2))), MARK(from(x2)))
   A__SEL(s(x0), cons(x1, from(x2))) -> c4(MARK(from(x2)))
   A__SEL(s(cons(z0, z1)), cons(x1, from(x2))) -> c4(MARK(from(x2)))
   A__SEL(s(x0), cons(x1, sel(x2, from(z0)))) -> c4(A__SEL(mark(x0), a__sel(mark(x2), a__from(mark(z0)))), MARK(sel(x2, from(z0))))
   A__SEL(s(x0), cons(x1, sel(x2, sel(z0, z1)))) -> c4(A__SEL(mark(x0), a__sel(mark(x2), a__sel(mark(z0), mark(z1)))), MARK(sel(x2, sel(z0, z1))))
   A__SEL(s(x0), cons(x1, sel(x2, cons(z0, z1)))) -> c4(A__SEL(mark(x0), a__sel(mark(x2), cons(mark(z0), z1))), MARK(sel(x2, cons(z0, z1))))
   A__SEL(s(x0), cons(x1, sel(x2, s(z0)))) -> c4(A__SEL(mark(x0), a__sel(mark(x2), s(mark(z0)))), MARK(sel(x2, s(z0))))
   A__SEL(s(x0), cons(x1, sel(x2, 0))) -> c4(A__SEL(mark(x0), a__sel(mark(x2), 0)), MARK(sel(x2, 0)))
   A__SEL(s(x0), cons(x1, sel(from(z0), x3))) -> c4(A__SEL(mark(x0), a__sel(a__from(mark(z0)), mark(x3))), MARK(sel(from(z0), x3)))
   A__SEL(s(x0), cons(x1, sel(sel(z0, z1), x3))) -> c4(A__SEL(mark(x0), a__sel(a__sel(mark(z0), mark(z1)), mark(x3))), MARK(sel(sel(z0, z1), x3)))
   A__SEL(s(x0), cons(x1, sel(cons(z0, z1), x3))) -> c4(A__SEL(mark(x0), a__sel(cons(mark(z0), z1), mark(x3))), MARK(sel(cons(z0, z1), x3)))
   A__SEL(s(x0), cons(x1, sel(s(z0), x3))) -> c4(A__SEL(mark(x0), a__sel(s(mark(z0)), mark(x3))), MARK(sel(s(z0), x3)))
   A__SEL(s(x0), cons(x1, sel(0, x3))) -> c4(A__SEL(mark(x0), a__sel(0, mark(x3))), MARK(sel(0, x3)))
   A__SEL(s(from(z0)), cons(x1, sel(x2, x3))) -> c4(A__SEL(a__from(mark(z0)), a__sel(mark(x2), mark(x3))), MARK(sel(x2, x3)))
   A__SEL(s(sel(z0, z1)), cons(x1, sel(x2, x3))) -> c4(A__SEL(a__sel(mark(z0), mark(z1)), a__sel(mark(x2), mark(x3))), MARK(sel(x2, x3)))
   A__SEL(s(s(z0)), cons(x1, sel(x2, x3))) -> c4(A__SEL(s(mark(z0)), a__sel(mark(x2), mark(x3))), MARK(sel(x2, x3)))
   A__SEL(s(0), cons(x1, sel(x2, x3))) -> c4(A__SEL(0, a__sel(mark(x2), mark(x3))), MARK(sel(x2, x3)))
   A__SEL(s(x0), cons(x1, sel(x2, x3))) -> c4(MARK(sel(x2, x3)))
   A__SEL(s(cons(z0, z1)), cons(x1, sel(x2, x3))) -> c4(MARK(sel(x2, x3)))
   A__SEL(s(x0), cons(x1, cons(from(z0), x3))) -> c4(A__SEL(mark(x0), cons(a__from(mark(z0)), x3)), MARK(cons(from(z0), x3)))
   A__SEL(s(x0), cons(x1, cons(sel(z0, z1), x3))) -> c4(A__SEL(mark(x0), cons(a__sel(mark(z0), mark(z1)), x3)), MARK(cons(sel(z0, z1), x3)))
   A__SEL(s(x0), cons(x1, cons(cons(z0, z1), x3))) -> c4(A__SEL(mark(x0), cons(cons(mark(z0), z1), x3)), MARK(cons(cons(z0, z1), x3)))
   A__SEL(s(x0), cons(x1, cons(s(z0), x3))) -> c4(A__SEL(mark(x0), cons(s(mark(z0)), x3)), MARK(cons(s(z0), x3)))
   A__SEL(s(x0), cons(x1, cons(0, x3))) -> c4(A__SEL(mark(x0), cons(0, x3)), MARK(cons(0, x3)))
   A__SEL(s(from(z0)), cons(x1, cons(x2, x3))) -> c4(A__SEL(a__from(mark(z0)), cons(mark(x2), x3)), MARK(cons(x2, x3)))
   A__SEL(s(sel(z0, z1)), cons(x1, cons(x2, x3))) -> c4(A__SEL(a__sel(mark(z0), mark(z1)), cons(mark(x2), x3)), MARK(cons(x2, x3)))
   A__SEL(s(s(z0)), cons(x1, cons(x2, x3))) -> c4(A__SEL(s(mark(z0)), cons(mark(x2), x3)), MARK(cons(x2, x3)))
   A__SEL(s(0), cons(x1, cons(x2, x3))) -> c4(A__SEL(0, cons(mark(x2), x3)), MARK(cons(x2, x3)))
   A__SEL(s(x0), cons(x1, cons(x2, x3))) -> c4(MARK(cons(x2, x3)))
   A__SEL(s(cons(z0, z1)), cons(x1, cons(x2, x3))) -> c4(MARK(cons(x2, x3)))
   A__SEL(s(from(from(z0))), cons(x1, x2)) -> c4(A__SEL(a__from(a__from(mark(z0))), mark(x2)), MARK(x2))
   A__SEL(s(from(sel(z0, z1))), cons(x1, x2)) -> c4(A__SEL(a__from(a__sel(mark(z0), mark(z1))), mark(x2)), MARK(x2))
   A__SEL(s(from(cons(z0, z1))), cons(x1, x2)) -> c4(A__SEL(a__from(cons(mark(z0), z1)), mark(x2)), MARK(x2))
   A__SEL(s(from(s(z0))), cons(x1, x2)) -> c4(A__SEL(a__from(s(mark(z0))), mark(x2)), MARK(x2))
   A__SEL(s(from(0)), cons(x1, x2)) -> c4(A__SEL(a__from(0), mark(x2)), MARK(x2))
   A__SEL(s(from(x0)), cons(x1, s(z0))) -> c4(MARK(s(z0)))
   A__SEL(s(from(x0)), cons(x1, x2)) -> c4(MARK(x2))
   A__SEL(s(sel(x0, from(z0))), cons(x2, x3)) -> c4(A__SEL(a__sel(mark(x0), a__from(mark(z0))), mark(x3)), MARK(x3))
   A__SEL(s(sel(x0, sel(z0, z1))), cons(x2, x3)) -> c4(A__SEL(a__sel(mark(x0), a__sel(mark(z0), mark(z1))), mark(x3)), MARK(x3))
   A__SEL(s(sel(x0, cons(z0, z1))), cons(x2, x3)) -> c4(A__SEL(a__sel(mark(x0), cons(mark(z0), z1)), mark(x3)), MARK(x3))
   A__SEL(s(sel(x0, s(z0))), cons(x2, x3)) -> c4(A__SEL(a__sel(mark(x0), s(mark(z0))), mark(x3)), MARK(x3))
   A__SEL(s(sel(x0, 0)), cons(x2, x3)) -> c4(A__SEL(a__sel(mark(x0), 0), mark(x3)), MARK(x3))
   A__SEL(s(sel(from(z0), x1)), cons(x2, x3)) -> c4(A__SEL(a__sel(a__from(mark(z0)), mark(x1)), mark(x3)), MARK(x3))
   A__SEL(s(sel(sel(z0, z1), x1)), cons(x2, x3)) -> c4(A__SEL(a__sel(a__sel(mark(z0), mark(z1)), mark(x1)), mark(x3)), MARK(x3))
   A__SEL(s(sel(cons(z0, z1), x1)), cons(x2, x3)) -> c4(A__SEL(a__sel(cons(mark(z0), z1), mark(x1)), mark(x3)), MARK(x3))
   A__SEL(s(sel(s(z0), x1)), cons(x2, x3)) -> c4(A__SEL(a__sel(s(mark(z0)), mark(x1)), mark(x3)), MARK(x3))
   A__SEL(s(sel(0, x1)), cons(x2, x3)) -> c4(A__SEL(a__sel(0, mark(x1)), mark(x3)), MARK(x3))
   A__SEL(s(sel(x0, x1)), cons(x2, s(z0))) -> c4(MARK(s(z0)))
   A__SEL(s(sel(x0, x1)), cons(x2, x3)) -> c4(MARK(x3))
   A__SEL(s(s(from(z0))), cons(x1, x2)) -> c4(A__SEL(s(a__from(mark(z0))), mark(x2)), MARK(x2))
   A__SEL(s(s(sel(z0, z1))), cons(x1, x2)) -> c4(A__SEL(s(a__sel(mark(z0), mark(z1))), mark(x2)), MARK(x2))
   A__SEL(s(s(cons(z0, z1))), cons(x1, x2)) -> c4(A__SEL(s(cons(mark(z0), z1)), mark(x2)), MARK(x2))
   A__SEL(s(s(s(z0))), cons(x1, x2)) -> c4(A__SEL(s(s(mark(z0))), mark(x2)), MARK(x2))
   A__SEL(s(s(0)), cons(x1, x2)) -> c4(A__SEL(s(0), mark(x2)), MARK(x2))
   A__SEL(s(s(x0)), cons(x1, s(z0))) -> c4(MARK(s(z0)))
   A__SEL(s(0), cons(x0, s(z0))) -> c4(MARK(s(z0)))
   MARK(sel(x0, from(x1))) -> c7(A__SEL(mark(x0), cons(mark(mark(x1)), from(s(mark(x1))))), MARK(x0))
   MARK(sel(x0, from(from(z0)))) -> c7(A__SEL(mark(x0), a__from(a__from(mark(z0)))), MARK(x0))
   MARK(sel(x0, from(sel(z0, z1)))) -> c7(A__SEL(mark(x0), a__from(a__sel(mark(z0), mark(z1)))), MARK(x0))
   MARK(sel(x0, from(cons(z0, z1)))) -> c7(A__SEL(mark(x0), a__from(cons(mark(z0), z1))), MARK(x0))
   MARK(sel(x0, from(s(z0)))) -> c7(A__SEL(mark(x0), a__from(s(mark(z0)))), MARK(x0))
   MARK(sel(x0, from(0))) -> c7(A__SEL(mark(x0), a__from(0)), MARK(x0))
   MARK(sel(from(z0), from(x1))) -> c7(A__SEL(a__from(mark(z0)), a__from(mark(x1))), MARK(from(z0)))
   MARK(sel(sel(z0, z1), from(x1))) -> c7(A__SEL(a__sel(mark(z0), mark(z1)), a__from(mark(x1))), MARK(sel(z0, z1)))
   MARK(sel(s(z0), from(x1))) -> c7(A__SEL(s(mark(z0)), a__from(mark(x1))), MARK(s(z0)))
   MARK(sel(x0, from(x1))) -> c7(MARK(x0))
   MARK(sel(cons(z0, z1), from(x1))) -> c7(MARK(cons(z0, z1)))
   MARK(sel(0, from(x1))) -> c7(A__SEL(0, a__from(mark(x1))))
   MARK(sel(x0, sel(x1, x2))) -> c7(A__SEL(mark(x0), sel(mark(x1), mark(x2))), MARK(x0))
   MARK(sel(x0, sel(x1, from(z0)))) -> c7(A__SEL(mark(x0), a__sel(mark(x1), a__from(mark(z0)))), MARK(x0))
   MARK(sel(x0, sel(x1, sel(z0, z1)))) -> c7(A__SEL(mark(x0), a__sel(mark(x1), a__sel(mark(z0), mark(z1)))), MARK(x0))
   MARK(sel(x0, sel(x1, cons(z0, z1)))) -> c7(A__SEL(mark(x0), a__sel(mark(x1), cons(mark(z0), z1))), MARK(x0))
   MARK(sel(x0, sel(x1, s(z0)))) -> c7(A__SEL(mark(x0), a__sel(mark(x1), s(mark(z0)))), MARK(x0))
   MARK(sel(x0, sel(x1, 0))) -> c7(A__SEL(mark(x0), a__sel(mark(x1), 0)), MARK(x0))
   MARK(sel(x0, sel(from(z0), x2))) -> c7(A__SEL(mark(x0), a__sel(a__from(mark(z0)), mark(x2))), MARK(x0))
   MARK(sel(x0, sel(sel(z0, z1), x2))) -> c7(A__SEL(mark(x0), a__sel(a__sel(mark(z0), mark(z1)), mark(x2))), MARK(x0))
   MARK(sel(x0, sel(cons(z0, z1), x2))) -> c7(A__SEL(mark(x0), a__sel(cons(mark(z0), z1), mark(x2))), MARK(x0))
   MARK(sel(x0, sel(s(z0), x2))) -> c7(A__SEL(mark(x0), a__sel(s(mark(z0)), mark(x2))), MARK(x0))
   MARK(sel(x0, sel(0, x2))) -> c7(A__SEL(mark(x0), a__sel(0, mark(x2))), MARK(x0))
   MARK(sel(from(z0), sel(x1, x2))) -> c7(A__SEL(a__from(mark(z0)), a__sel(mark(x1), mark(x2))), MARK(from(z0)))
   MARK(sel(sel(z0, z1), sel(x1, x2))) -> c7(A__SEL(a__sel(mark(z0), mark(z1)), a__sel(mark(x1), mark(x2))), MARK(sel(z0, z1)))
   MARK(sel(cons(z0, z1), sel(x1, x2))) -> c7(A__SEL(cons(mark(z0), z1), a__sel(mark(x1), mark(x2))), MARK(cons(z0, z1)))
   MARK(sel(s(z0), sel(x1, x2))) -> c7(A__SEL(s(mark(z0)), a__sel(mark(x1), mark(x2))), MARK(s(z0)))
   MARK(sel(0, sel(x1, x2))) -> c7(A__SEL(0, a__sel(mark(x1), mark(x2))), MARK(0))
K tuples:none
Defined Rule Symbols:   a__from_1, a__sel_2, mark_1

Defined Pair Symbols:   A__FROM_1, A__SEL_2, MARK_1

Compound Symbols:   c_1, c2_1, c6_2, c9_1, c10_1, c3_1, c4_1, c7_2, c7_1, c8_2, c8_1, c3_2, c4_2


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

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

(148)
Obligation:
Complexity Dependency Tuples Problem

Rules:
   a__from(z0) -> cons(mark(z0), from(s(z0)))
   a__from(z0) -> from(z0)
   a__sel(0, cons(z0, z1)) -> mark(z0)
   a__sel(s(z0), cons(z1, z2)) -> a__sel(mark(z0), mark(z2))
   a__sel(z0, z1) -> sel(z0, z1)
   mark(from(z0)) -> a__from(mark(z0))
   mark(sel(z0, z1)) -> a__sel(mark(z0), mark(z1))
   mark(cons(z0, z1)) -> cons(mark(z0), z1)
   mark(s(z0)) -> s(mark(z0))
   mark(0) -> 0
Tuples:
   A__FROM(z0) -> c(MARK(z0))
   A__SEL(0, cons(z0, z1)) -> c2(MARK(z0))
   MARK(from(z0)) -> c6(A__FROM(mark(z0)), MARK(z0))
   MARK(cons(z0, z1)) -> c9(MARK(z0))
   MARK(s(z0)) -> c10(MARK(z0))
   A__SEL(s(x0), cons(x1, s(z0))) -> c3(MARK(x0))
   A__SEL(s(x0), cons(x1, 0)) -> c3(MARK(x0))
   A__SEL(s(cons(z0, z1)), cons(x1, x2)) -> c3(MARK(cons(z0, z1)))
   A__SEL(s(x0), cons(x1, s(z0))) -> c4(MARK(s(z0)))
   A__SEL(s(cons(z0, z1)), cons(x1, x2)) -> c4(MARK(x2))
   MARK(sel(x0, cons(z0, z1))) -> c7(A__SEL(mark(x0), cons(mark(z0), z1)), MARK(x0))
   MARK(sel(from(z0), x1)) -> c7(A__SEL(a__from(mark(z0)), mark(x1)), MARK(from(z0)))
   MARK(sel(sel(z0, z1), x1)) -> c7(A__SEL(a__sel(mark(z0), mark(z1)), mark(x1)), MARK(sel(z0, z1)))
   MARK(sel(s(z0), x1)) -> c7(A__SEL(s(mark(z0)), mark(x1)), MARK(s(z0)))
   MARK(sel(x0, s(z0))) -> c7(MARK(x0))
   MARK(sel(x0, 0)) -> c7(MARK(x0))
   MARK(sel(cons(z0, z1), x1)) -> c7(MARK(cons(z0, z1)))
   MARK(sel(0, x1)) -> c7(A__SEL(0, mark(x1)))
   MARK(sel(x0, from(z0))) -> c8(A__SEL(mark(x0), a__from(mark(z0))), MARK(from(z0)))
   MARK(sel(x0, sel(z0, z1))) -> c8(A__SEL(mark(x0), a__sel(mark(z0), mark(z1))), MARK(sel(z0, z1)))
   MARK(sel(x0, cons(z0, z1))) -> c8(A__SEL(mark(x0), cons(mark(z0), z1)), MARK(cons(z0, z1)))
   MARK(sel(from(z0), x1)) -> c8(A__SEL(a__from(mark(z0)), mark(x1)), MARK(x1))
   MARK(sel(sel(z0, z1), x1)) -> c8(A__SEL(a__sel(mark(z0), mark(z1)), mark(x1)), MARK(x1))
   MARK(sel(s(z0), x1)) -> c8(A__SEL(s(mark(z0)), mark(x1)), MARK(x1))
   MARK(sel(0, x1)) -> c8(A__SEL(0, mark(x1)), MARK(x1))
   MARK(sel(x0, s(z0))) -> c8(MARK(s(z0)))
   MARK(sel(cons(z0, z1), x1)) -> c8(MARK(x1))
   A__SEL(s(x0), cons(x1, from(x2))) -> c3(A__SEL(mark(x0), cons(mark(mark(x2)), from(s(mark(x2))))), MARK(x0))
   A__SEL(s(x0), cons(x1, from(from(z0)))) -> c3(A__SEL(mark(x0), a__from(a__from(mark(z0)))), MARK(x0))
   A__SEL(s(x0), cons(x1, from(sel(z0, z1)))) -> c3(A__SEL(mark(x0), a__from(a__sel(mark(z0), mark(z1)))), MARK(x0))
   A__SEL(s(x0), cons(x1, from(cons(z0, z1)))) -> c3(A__SEL(mark(x0), a__from(cons(mark(z0), z1))), MARK(x0))
   A__SEL(s(x0), cons(x1, from(s(z0)))) -> c3(A__SEL(mark(x0), a__from(s(mark(z0)))), MARK(x0))
   A__SEL(s(x0), cons(x1, from(0))) -> c3(A__SEL(mark(x0), a__from(0)), MARK(x0))
   A__SEL(s(from(z0)), cons(x1, from(x2))) -> c3(A__SEL(a__from(mark(z0)), a__from(mark(x2))), MARK(from(z0)))
   A__SEL(s(sel(z0, z1)), cons(x1, from(x2))) -> c3(A__SEL(a__sel(mark(z0), mark(z1)), a__from(mark(x2))), MARK(sel(z0, z1)))
   A__SEL(s(s(z0)), cons(x1, from(x2))) -> c3(A__SEL(s(mark(z0)), a__from(mark(x2))), MARK(s(z0)))
   A__SEL(s(x0), cons(x1, from(x2))) -> c3(MARK(x0))
   A__SEL(s(cons(z0, z1)), cons(x1, from(x2))) -> c3(MARK(cons(z0, z1)))
   A__SEL(s(0), cons(x1, from(x2))) -> c3(A__SEL(0, a__from(mark(x2))))
   A__SEL(s(x0), cons(x1, sel(x2, from(z0)))) -> c3(A__SEL(mark(x0), a__sel(mark(x2), a__from(mark(z0)))), MARK(x0))
   A__SEL(s(x0), cons(x1, sel(x2, sel(z0, z1)))) -> c3(A__SEL(mark(x0), a__sel(mark(x2), a__sel(mark(z0), mark(z1)))), MARK(x0))
   A__SEL(s(x0), cons(x1, sel(x2, cons(z0, z1)))) -> c3(A__SEL(mark(x0), a__sel(mark(x2), cons(mark(z0), z1))), MARK(x0))
   A__SEL(s(x0), cons(x1, sel(x2, s(z0)))) -> c3(A__SEL(mark(x0), a__sel(mark(x2), s(mark(z0)))), MARK(x0))
   A__SEL(s(x0), cons(x1, sel(x2, 0))) -> c3(A__SEL(mark(x0), a__sel(mark(x2), 0)), MARK(x0))
   A__SEL(s(x0), cons(x1, sel(from(z0), x3))) -> c3(A__SEL(mark(x0), a__sel(a__from(mark(z0)), mark(x3))), MARK(x0))
   A__SEL(s(x0), cons(x1, sel(sel(z0, z1), x3))) -> c3(A__SEL(mark(x0), a__sel(a__sel(mark(z0), mark(z1)), mark(x3))), MARK(x0))
   A__SEL(s(x0), cons(x1, sel(cons(z0, z1), x3))) -> c3(A__SEL(mark(x0), a__sel(cons(mark(z0), z1), mark(x3))), MARK(x0))
   A__SEL(s(x0), cons(x1, sel(s(z0), x3))) -> c3(A__SEL(mark(x0), a__sel(s(mark(z0)), mark(x3))), MARK(x0))
   A__SEL(s(x0), cons(x1, sel(0, x3))) -> c3(A__SEL(mark(x0), a__sel(0, mark(x3))), MARK(x0))
   A__SEL(s(from(z0)), cons(x1, sel(x2, x3))) -> c3(A__SEL(a__from(mark(z0)), a__sel(mark(x2), mark(x3))), MARK(from(z0)))
   A__SEL(s(sel(z0, z1)), cons(x1, sel(x2, x3))) -> c3(A__SEL(a__sel(mark(z0), mark(z1)), a__sel(mark(x2), mark(x3))), MARK(sel(z0, z1)))
   A__SEL(s(s(z0)), cons(x1, sel(x2, x3))) -> c3(A__SEL(s(mark(z0)), a__sel(mark(x2), mark(x3))), MARK(s(z0)))
   A__SEL(s(x0), cons(x1, sel(x2, x3))) -> c3(MARK(x0))
   A__SEL(s(cons(z0, z1)), cons(x1, sel(x2, x3))) -> c3(MARK(cons(z0, z1)))
   A__SEL(s(0), cons(x1, sel(x2, x3))) -> c3(A__SEL(0, a__sel(mark(x2), mark(x3))))
   A__SEL(s(x0), cons(x1, cons(from(z0), x3))) -> c3(A__SEL(mark(x0), cons(a__from(mark(z0)), x3)), MARK(x0))
   A__SEL(s(x0), cons(x1, cons(sel(z0, z1), x3))) -> c3(A__SEL(mark(x0), cons(a__sel(mark(z0), mark(z1)), x3)), MARK(x0))
   A__SEL(s(x0), cons(x1, cons(cons(z0, z1), x3))) -> c3(A__SEL(mark(x0), cons(cons(mark(z0), z1), x3)), MARK(x0))
   A__SEL(s(x0), cons(x1, cons(s(z0), x3))) -> c3(A__SEL(mark(x0), cons(s(mark(z0)), x3)), MARK(x0))
   A__SEL(s(x0), cons(x1, cons(0, x3))) -> c3(A__SEL(mark(x0), cons(0, x3)), MARK(x0))
   A__SEL(s(from(z0)), cons(x1, cons(x2, x3))) -> c3(A__SEL(a__from(mark(z0)), cons(mark(x2), x3)), MARK(from(z0)))
   A__SEL(s(sel(z0, z1)), cons(x1, cons(x2, x3))) -> c3(A__SEL(a__sel(mark(z0), mark(z1)), cons(mark(x2), x3)), MARK(sel(z0, z1)))
   A__SEL(s(s(z0)), cons(x1, cons(x2, x3))) -> c3(A__SEL(s(mark(z0)), cons(mark(x2), x3)), MARK(s(z0)))
   A__SEL(s(cons(z0, z1)), cons(x1, cons(x2, x3))) -> c3(MARK(cons(z0, z1)))
   A__SEL(s(0), cons(x1, cons(x2, x3))) -> c3(A__SEL(0, cons(mark(x2), x3)))
   A__SEL(s(from(from(z0))), cons(x1, x2)) -> c3(A__SEL(a__from(a__from(mark(z0))), mark(x2)), MARK(from(from(z0))))
   A__SEL(s(from(sel(z0, z1))), cons(x1, x2)) -> c3(A__SEL(a__from(a__sel(mark(z0), mark(z1))), mark(x2)), MARK(from(sel(z0, z1))))
   A__SEL(s(from(cons(z0, z1))), cons(x1, x2)) -> c3(A__SEL(a__from(cons(mark(z0), z1)), mark(x2)), MARK(from(cons(z0, z1))))
   A__SEL(s(from(s(z0))), cons(x1, x2)) -> c3(A__SEL(a__from(s(mark(z0))), mark(x2)), MARK(from(s(z0))))
   A__SEL(s(from(0)), cons(x1, x2)) -> c3(A__SEL(a__from(0), mark(x2)), MARK(from(0)))
   A__SEL(s(from(x0)), cons(x1, x2)) -> c3(MARK(from(x0)))
   A__SEL(s(from(x0)), cons(x1, s(z0))) -> c3(MARK(from(x0)))
   A__SEL(s(from(x0)), cons(x1, 0)) -> c3(MARK(from(x0)))
   A__SEL(s(sel(x0, from(z0))), cons(x2, x3)) -> c3(A__SEL(a__sel(mark(x0), a__from(mark(z0))), mark(x3)), MARK(sel(x0, from(z0))))
   A__SEL(s(sel(x0, sel(z0, z1))), cons(x2, x3)) -> c3(A__SEL(a__sel(mark(x0), a__sel(mark(z0), mark(z1))), mark(x3)), MARK(sel(x0, sel(z0, z1))))
   A__SEL(s(sel(x0, cons(z0, z1))), cons(x2, x3)) -> c3(A__SEL(a__sel(mark(x0), cons(mark(z0), z1)), mark(x3)), MARK(sel(x0, cons(z0, z1))))
   A__SEL(s(sel(x0, s(z0))), cons(x2, x3)) -> c3(A__SEL(a__sel(mark(x0), s(mark(z0))), mark(x3)), MARK(sel(x0, s(z0))))
   A__SEL(s(sel(x0, 0)), cons(x2, x3)) -> c3(A__SEL(a__sel(mark(x0), 0), mark(x3)), MARK(sel(x0, 0)))
   A__SEL(s(sel(from(z0), x1)), cons(x2, x3)) -> c3(A__SEL(a__sel(a__from(mark(z0)), mark(x1)), mark(x3)), MARK(sel(from(z0), x1)))
   A__SEL(s(sel(sel(z0, z1), x1)), cons(x2, x3)) -> c3(A__SEL(a__sel(a__sel(mark(z0), mark(z1)), mark(x1)), mark(x3)), MARK(sel(sel(z0, z1), x1)))
   A__SEL(s(sel(cons(z0, z1), x1)), cons(x2, x3)) -> c3(A__SEL(a__sel(cons(mark(z0), z1), mark(x1)), mark(x3)), MARK(sel(cons(z0, z1), x1)))
   A__SEL(s(sel(s(z0), x1)), cons(x2, x3)) -> c3(A__SEL(a__sel(s(mark(z0)), mark(x1)), mark(x3)), MARK(sel(s(z0), x1)))
   A__SEL(s(sel(0, x1)), cons(x2, x3)) -> c3(A__SEL(a__sel(0, mark(x1)), mark(x3)), MARK(sel(0, x1)))
   A__SEL(s(sel(x0, x1)), cons(x2, s(z0))) -> c3(MARK(sel(x0, x1)))
   A__SEL(s(sel(x0, x1)), cons(x2, 0)) -> c3(MARK(sel(x0, x1)))
   A__SEL(s(sel(x0, x1)), cons(x2, x3)) -> c3(MARK(sel(x0, x1)))
   A__SEL(s(s(from(z0))), cons(x1, x2)) -> c3(A__SEL(s(a__from(mark(z0))), mark(x2)), MARK(s(from(z0))))
   A__SEL(s(s(sel(z0, z1))), cons(x1, x2)) -> c3(A__SEL(s(a__sel(mark(z0), mark(z1))), mark(x2)), MARK(s(sel(z0, z1))))
   A__SEL(s(s(cons(z0, z1))), cons(x1, x2)) -> c3(A__SEL(s(cons(mark(z0), z1)), mark(x2)), MARK(s(cons(z0, z1))))
   A__SEL(s(s(s(z0))), cons(x1, x2)) -> c3(A__SEL(s(s(mark(z0))), mark(x2)), MARK(s(s(z0))))
   A__SEL(s(s(0)), cons(x1, x2)) -> c3(A__SEL(s(0), mark(x2)), MARK(s(0)))
   A__SEL(s(s(x0)), cons(x1, x2)) -> c3(MARK(s(x0)))
   A__SEL(s(s(x0)), cons(x1, s(z0))) -> c3(MARK(s(x0)))
   A__SEL(s(s(x0)), cons(x1, 0)) -> c3(MARK(s(x0)))
   A__SEL(s(x0), cons(x1, from(x2))) -> c4(A__SEL(mark(x0), cons(mark(mark(x2)), from(s(mark(x2))))), MARK(from(x2)))
   A__SEL(s(x0), cons(x1, from(from(z0)))) -> c4(A__SEL(mark(x0), a__from(a__from(mark(z0)))), MARK(from(from(z0))))
   A__SEL(s(x0), cons(x1, from(sel(z0, z1)))) -> c4(A__SEL(mark(x0), a__from(a__sel(mark(z0), mark(z1)))), MARK(from(sel(z0, z1))))
   A__SEL(s(x0), cons(x1, from(cons(z0, z1)))) -> c4(A__SEL(mark(x0), a__from(cons(mark(z0), z1))), MARK(from(cons(z0, z1))))
   A__SEL(s(x0), cons(x1, from(s(z0)))) -> c4(A__SEL(mark(x0), a__from(s(mark(z0)))), MARK(from(s(z0))))
   A__SEL(s(x0), cons(x1, from(0))) -> c4(A__SEL(mark(x0), a__from(0)), MARK(from(0)))
   A__SEL(s(from(z0)), cons(x1, from(x2))) -> c4(A__SEL(a__from(mark(z0)), a__from(mark(x2))), MARK(from(x2)))
   A__SEL(s(sel(z0, z1)), cons(x1, from(x2))) -> c4(A__SEL(a__sel(mark(z0), mark(z1)), a__from(mark(x2))), MARK(from(x2)))
   A__SEL(s(s(z0)), cons(x1, from(x2))) -> c4(A__SEL(s(mark(z0)), a__from(mark(x2))), MARK(from(x2)))
   A__SEL(s(0), cons(x1, from(x2))) -> c4(A__SEL(0, a__from(mark(x2))), MARK(from(x2)))
   A__SEL(s(x0), cons(x1, from(x2))) -> c4(MARK(from(x2)))
   A__SEL(s(cons(z0, z1)), cons(x1, from(x2))) -> c4(MARK(from(x2)))
   A__SEL(s(x0), cons(x1, sel(x2, from(z0)))) -> c4(A__SEL(mark(x0), a__sel(mark(x2), a__from(mark(z0)))), MARK(sel(x2, from(z0))))
   A__SEL(s(x0), cons(x1, sel(x2, sel(z0, z1)))) -> c4(A__SEL(mark(x0), a__sel(mark(x2), a__sel(mark(z0), mark(z1)))), MARK(sel(x2, sel(z0, z1))))
   A__SEL(s(x0), cons(x1, sel(x2, cons(z0, z1)))) -> c4(A__SEL(mark(x0), a__sel(mark(x2), cons(mark(z0), z1))), MARK(sel(x2, cons(z0, z1))))
   A__SEL(s(x0), cons(x1, sel(x2, s(z0)))) -> c4(A__SEL(mark(x0), a__sel(mark(x2), s(mark(z0)))), MARK(sel(x2, s(z0))))
   A__SEL(s(x0), cons(x1, sel(x2, 0))) -> c4(A__SEL(mark(x0), a__sel(mark(x2), 0)), MARK(sel(x2, 0)))
   A__SEL(s(x0), cons(x1, sel(from(z0), x3))) -> c4(A__SEL(mark(x0), a__sel(a__from(mark(z0)), mark(x3))), MARK(sel(from(z0), x3)))
   A__SEL(s(x0), cons(x1, sel(sel(z0, z1), x3))) -> c4(A__SEL(mark(x0), a__sel(a__sel(mark(z0), mark(z1)), mark(x3))), MARK(sel(sel(z0, z1), x3)))
   A__SEL(s(x0), cons(x1, sel(cons(z0, z1), x3))) -> c4(A__SEL(mark(x0), a__sel(cons(mark(z0), z1), mark(x3))), MARK(sel(cons(z0, z1), x3)))
   A__SEL(s(x0), cons(x1, sel(s(z0), x3))) -> c4(A__SEL(mark(x0), a__sel(s(mark(z0)), mark(x3))), MARK(sel(s(z0), x3)))
   A__SEL(s(x0), cons(x1, sel(0, x3))) -> c4(A__SEL(mark(x0), a__sel(0, mark(x3))), MARK(sel(0, x3)))
   A__SEL(s(from(z0)), cons(x1, sel(x2, x3))) -> c4(A__SEL(a__from(mark(z0)), a__sel(mark(x2), mark(x3))), MARK(sel(x2, x3)))
   A__SEL(s(sel(z0, z1)), cons(x1, sel(x2, x3))) -> c4(A__SEL(a__sel(mark(z0), mark(z1)), a__sel(mark(x2), mark(x3))), MARK(sel(x2, x3)))
   A__SEL(s(s(z0)), cons(x1, sel(x2, x3))) -> c4(A__SEL(s(mark(z0)), a__sel(mark(x2), mark(x3))), MARK(sel(x2, x3)))
   A__SEL(s(0), cons(x1, sel(x2, x3))) -> c4(A__SEL(0, a__sel(mark(x2), mark(x3))), MARK(sel(x2, x3)))
   A__SEL(s(x0), cons(x1, sel(x2, x3))) -> c4(MARK(sel(x2, x3)))
   A__SEL(s(cons(z0, z1)), cons(x1, sel(x2, x3))) -> c4(MARK(sel(x2, x3)))
   A__SEL(s(x0), cons(x1, cons(from(z0), x3))) -> c4(A__SEL(mark(x0), cons(a__from(mark(z0)), x3)), MARK(cons(from(z0), x3)))
   A__SEL(s(x0), cons(x1, cons(sel(z0, z1), x3))) -> c4(A__SEL(mark(x0), cons(a__sel(mark(z0), mark(z1)), x3)), MARK(cons(sel(z0, z1), x3)))
   A__SEL(s(x0), cons(x1, cons(cons(z0, z1), x3))) -> c4(A__SEL(mark(x0), cons(cons(mark(z0), z1), x3)), MARK(cons(cons(z0, z1), x3)))
   A__SEL(s(x0), cons(x1, cons(s(z0), x3))) -> c4(A__SEL(mark(x0), cons(s(mark(z0)), x3)), MARK(cons(s(z0), x3)))
   A__SEL(s(x0), cons(x1, cons(0, x3))) -> c4(A__SEL(mark(x0), cons(0, x3)), MARK(cons(0, x3)))
   A__SEL(s(from(z0)), cons(x1, cons(x2, x3))) -> c4(A__SEL(a__from(mark(z0)), cons(mark(x2), x3)), MARK(cons(x2, x3)))
   A__SEL(s(sel(z0, z1)), cons(x1, cons(x2, x3))) -> c4(A__SEL(a__sel(mark(z0), mark(z1)), cons(mark(x2), x3)), MARK(cons(x2, x3)))
   A__SEL(s(s(z0)), cons(x1, cons(x2, x3))) -> c4(A__SEL(s(mark(z0)), cons(mark(x2), x3)), MARK(cons(x2, x3)))
   A__SEL(s(0), cons(x1, cons(x2, x3))) -> c4(A__SEL(0, cons(mark(x2), x3)), MARK(cons(x2, x3)))
   A__SEL(s(x0), cons(x1, cons(x2, x3))) -> c4(MARK(cons(x2, x3)))
   A__SEL(s(cons(z0, z1)), cons(x1, cons(x2, x3))) -> c4(MARK(cons(x2, x3)))
   A__SEL(s(from(from(z0))), cons(x1, x2)) -> c4(A__SEL(a__from(a__from(mark(z0))), mark(x2)), MARK(x2))
   A__SEL(s(from(sel(z0, z1))), cons(x1, x2)) -> c4(A__SEL(a__from(a__sel(mark(z0), mark(z1))), mark(x2)), MARK(x2))
   A__SEL(s(from(cons(z0, z1))), cons(x1, x2)) -> c4(A__SEL(a__from(cons(mark(z0), z1)), mark(x2)), MARK(x2))
   A__SEL(s(from(s(z0))), cons(x1, x2)) -> c4(A__SEL(a__from(s(mark(z0))), mark(x2)), MARK(x2))
   A__SEL(s(from(0)), cons(x1, x2)) -> c4(A__SEL(a__from(0), mark(x2)), MARK(x2))
   A__SEL(s(from(x0)), cons(x1, s(z0))) -> c4(MARK(s(z0)))
   A__SEL(s(from(x0)), cons(x1, x2)) -> c4(MARK(x2))
   A__SEL(s(sel(x0, from(z0))), cons(x2, x3)) -> c4(A__SEL(a__sel(mark(x0), a__from(mark(z0))), mark(x3)), MARK(x3))
   A__SEL(s(sel(x0, sel(z0, z1))), cons(x2, x3)) -> c4(A__SEL(a__sel(mark(x0), a__sel(mark(z0), mark(z1))), mark(x3)), MARK(x3))
   A__SEL(s(sel(x0, cons(z0, z1))), cons(x2, x3)) -> c4(A__SEL(a__sel(mark(x0), cons(mark(z0), z1)), mark(x3)), MARK(x3))
   A__SEL(s(sel(x0, s(z0))), cons(x2, x3)) -> c4(A__SEL(a__sel(mark(x0), s(mark(z0))), mark(x3)), MARK(x3))
   A__SEL(s(sel(x0, 0)), cons(x2, x3)) -> c4(A__SEL(a__sel(mark(x0), 0), mark(x3)), MARK(x3))
   A__SEL(s(sel(from(z0), x1)), cons(x2, x3)) -> c4(A__SEL(a__sel(a__from(mark(z0)), mark(x1)), mark(x3)), MARK(x3))
   A__SEL(s(sel(sel(z0, z1), x1)), cons(x2, x3)) -> c4(A__SEL(a__sel(a__sel(mark(z0), mark(z1)), mark(x1)), mark(x3)), MARK(x3))
   A__SEL(s(sel(cons(z0, z1), x1)), cons(x2, x3)) -> c4(A__SEL(a__sel(cons(mark(z0), z1), mark(x1)), mark(x3)), MARK(x3))
   A__SEL(s(sel(s(z0), x1)), cons(x2, x3)) -> c4(A__SEL(a__sel(s(mark(z0)), mark(x1)), mark(x3)), MARK(x3))
   A__SEL(s(sel(0, x1)), cons(x2, x3)) -> c4(A__SEL(a__sel(0, mark(x1)), mark(x3)), MARK(x3))
   A__SEL(s(sel(x0, x1)), cons(x2, s(z0))) -> c4(MARK(s(z0)))
   A__SEL(s(sel(x0, x1)), cons(x2, x3)) -> c4(MARK(x3))
   A__SEL(s(s(from(z0))), cons(x1, x2)) -> c4(A__SEL(s(a__from(mark(z0))), mark(x2)), MARK(x2))
   A__SEL(s(s(sel(z0, z1))), cons(x1, x2)) -> c4(A__SEL(s(a__sel(mark(z0), mark(z1))), mark(x2)), MARK(x2))
   A__SEL(s(s(cons(z0, z1))), cons(x1, x2)) -> c4(A__SEL(s(cons(mark(z0), z1)), mark(x2)), MARK(x2))
   A__SEL(s(s(s(z0))), cons(x1, x2)) -> c4(A__SEL(s(s(mark(z0))), mark(x2)), MARK(x2))
   A__SEL(s(s(0)), cons(x1, x2)) -> c4(A__SEL(s(0), mark(x2)), MARK(x2))
   A__SEL(s(s(x0)), cons(x1, s(z0))) -> c4(MARK(s(z0)))
   A__SEL(s(0), cons(x0, s(z0))) -> c4(MARK(s(z0)))
   MARK(sel(x0, from(x1))) -> c7(A__SEL(mark(x0), cons(mark(mark(x1)), from(s(mark(x1))))), MARK(x0))
   MARK(sel(x0, from(from(z0)))) -> c7(A__SEL(mark(x0), a__from(a__from(mark(z0)))), MARK(x0))
   MARK(sel(x0, from(sel(z0, z1)))) -> c7(A__SEL(mark(x0), a__from(a__sel(mark(z0), mark(z1)))), MARK(x0))
   MARK(sel(x0, from(cons(z0, z1)))) -> c7(A__SEL(mark(x0), a__from(cons(mark(z0), z1))), MARK(x0))
   MARK(sel(x0, from(s(z0)))) -> c7(A__SEL(mark(x0), a__from(s(mark(z0)))), MARK(x0))
   MARK(sel(x0, from(0))) -> c7(A__SEL(mark(x0), a__from(0)), MARK(x0))
   MARK(sel(from(z0), from(x1))) -> c7(A__SEL(a__from(mark(z0)), a__from(mark(x1))), MARK(from(z0)))
   MARK(sel(sel(z0, z1), from(x1))) -> c7(A__SEL(a__sel(mark(z0), mark(z1)), a__from(mark(x1))), MARK(sel(z0, z1)))
   MARK(sel(s(z0), from(x1))) -> c7(A__SEL(s(mark(z0)), a__from(mark(x1))), MARK(s(z0)))
   MARK(sel(x0, from(x1))) -> c7(MARK(x0))
   MARK(sel(cons(z0, z1), from(x1))) -> c7(MARK(cons(z0, z1)))
   MARK(sel(0, from(x1))) -> c7(A__SEL(0, a__from(mark(x1))))
   MARK(sel(x0, sel(x1, from(z0)))) -> c7(A__SEL(mark(x0), a__sel(mark(x1), a__from(mark(z0)))), MARK(x0))
   MARK(sel(x0, sel(x1, sel(z0, z1)))) -> c7(A__SEL(mark(x0), a__sel(mark(x1), a__sel(mark(z0), mark(z1)))), MARK(x0))
   MARK(sel(x0, sel(x1, cons(z0, z1)))) -> c7(A__SEL(mark(x0), a__sel(mark(x1), cons(mark(z0), z1))), MARK(x0))
   MARK(sel(x0, sel(x1, s(z0)))) -> c7(A__SEL(mark(x0), a__sel(mark(x1), s(mark(z0)))), MARK(x0))
   MARK(sel(x0, sel(x1, 0))) -> c7(A__SEL(mark(x0), a__sel(mark(x1), 0)), MARK(x0))
   MARK(sel(x0, sel(from(z0), x2))) -> c7(A__SEL(mark(x0), a__sel(a__from(mark(z0)), mark(x2))), MARK(x0))
   MARK(sel(x0, sel(sel(z0, z1), x2))) -> c7(A__SEL(mark(x0), a__sel(a__sel(mark(z0), mark(z1)), mark(x2))), MARK(x0))
   MARK(sel(x0, sel(cons(z0, z1), x2))) -> c7(A__SEL(mark(x0), a__sel(cons(mark(z0), z1), mark(x2))), MARK(x0))
   MARK(sel(x0, sel(s(z0), x2))) -> c7(A__SEL(mark(x0), a__sel(s(mark(z0)), mark(x2))), MARK(x0))
   MARK(sel(x0, sel(0, x2))) -> c7(A__SEL(mark(x0), a__sel(0, mark(x2))), MARK(x0))
   MARK(sel(from(z0), sel(x1, x2))) -> c7(A__SEL(a__from(mark(z0)), a__sel(mark(x1), mark(x2))), MARK(from(z0)))
   MARK(sel(sel(z0, z1), sel(x1, x2))) -> c7(A__SEL(a__sel(mark(z0), mark(z1)), a__sel(mark(x1), mark(x2))), MARK(sel(z0, z1)))
   MARK(sel(s(z0), sel(x1, x2))) -> c7(A__SEL(s(mark(z0)), a__sel(mark(x1), mark(x2))), MARK(s(z0)))
   MARK(sel(x0, sel(x1, x2))) -> c7(MARK(x0))
   MARK(sel(cons(z0, z1), sel(x1, x2))) -> c7(MARK(cons(z0, z1)))
   MARK(sel(0, sel(x1, x2))) -> c7(A__SEL(0, a__sel(mark(x1), mark(x2))))
S tuples:
   A__FROM(z0) -> c(MARK(z0))
   A__SEL(0, cons(z0, z1)) -> c2(MARK(z0))
   MARK(from(z0)) -> c6(A__FROM(mark(z0)), MARK(z0))
   MARK(cons(z0, z1)) -> c9(MARK(z0))
   MARK(s(z0)) -> c10(MARK(z0))
   A__SEL(s(x0), cons(x1, s(z0))) -> c3(MARK(x0))
   A__SEL(s(x0), cons(x1, 0)) -> c3(MARK(x0))
   A__SEL(s(cons(z0, z1)), cons(x1, x2)) -> c3(MARK(cons(z0, z1)))
   A__SEL(s(x0), cons(x1, s(z0))) -> c4(MARK(s(z0)))
   A__SEL(s(cons(z0, z1)), cons(x1, x2)) -> c4(MARK(x2))
   MARK(sel(x0, cons(z0, z1))) -> c7(A__SEL(mark(x0), cons(mark(z0), z1)), MARK(x0))
   MARK(sel(from(z0), x1)) -> c7(A__SEL(a__from(mark(z0)), mark(x1)), MARK(from(z0)))
   MARK(sel(sel(z0, z1), x1)) -> c7(A__SEL(a__sel(mark(z0), mark(z1)), mark(x1)), MARK(sel(z0, z1)))
   MARK(sel(s(z0), x1)) -> c7(A__SEL(s(mark(z0)), mark(x1)), MARK(s(z0)))
   MARK(sel(x0, s(z0))) -> c7(MARK(x0))
   MARK(sel(x0, 0)) -> c7(MARK(x0))
   MARK(sel(cons(z0, z1), x1)) -> c7(MARK(cons(z0, z1)))
   MARK(sel(0, x1)) -> c7(A__SEL(0, mark(x1)))
   MARK(sel(x0, from(z0))) -> c8(A__SEL(mark(x0), a__from(mark(z0))), MARK(from(z0)))
   MARK(sel(x0, sel(z0, z1))) -> c8(A__SEL(mark(x0), a__sel(mark(z0), mark(z1))), MARK(sel(z0, z1)))
   MARK(sel(x0, cons(z0, z1))) -> c8(A__SEL(mark(x0), cons(mark(z0), z1)), MARK(cons(z0, z1)))
   MARK(sel(from(z0), x1)) -> c8(A__SEL(a__from(mark(z0)), mark(x1)), MARK(x1))
   MARK(sel(sel(z0, z1), x1)) -> c8(A__SEL(a__sel(mark(z0), mark(z1)), mark(x1)), MARK(x1))
   MARK(sel(s(z0), x1)) -> c8(A__SEL(s(mark(z0)), mark(x1)), MARK(x1))
   MARK(sel(0, x1)) -> c8(A__SEL(0, mark(x1)), MARK(x1))
   MARK(sel(x0, s(z0))) -> c8(MARK(s(z0)))
   MARK(sel(cons(z0, z1), x1)) -> c8(MARK(x1))
   A__SEL(s(x0), cons(x1, from(x2))) -> c3(A__SEL(mark(x0), cons(mark(mark(x2)), from(s(mark(x2))))), MARK(x0))
   A__SEL(s(x0), cons(x1, from(from(z0)))) -> c3(A__SEL(mark(x0), a__from(a__from(mark(z0)))), MARK(x0))
   A__SEL(s(x0), cons(x1, from(sel(z0, z1)))) -> c3(A__SEL(mark(x0), a__from(a__sel(mark(z0), mark(z1)))), MARK(x0))
   A__SEL(s(x0), cons(x1, from(cons(z0, z1)))) -> c3(A__SEL(mark(x0), a__from(cons(mark(z0), z1))), MARK(x0))
   A__SEL(s(x0), cons(x1, from(s(z0)))) -> c3(A__SEL(mark(x0), a__from(s(mark(z0)))), MARK(x0))
   A__SEL(s(x0), cons(x1, from(0))) -> c3(A__SEL(mark(x0), a__from(0)), MARK(x0))
   A__SEL(s(from(z0)), cons(x1, from(x2))) -> c3(A__SEL(a__from(mark(z0)), a__from(mark(x2))), MARK(from(z0)))
   A__SEL(s(sel(z0, z1)), cons(x1, from(x2))) -> c3(A__SEL(a__sel(mark(z0), mark(z1)), a__from(mark(x2))), MARK(sel(z0, z1)))
   A__SEL(s(s(z0)), cons(x1, from(x2))) -> c3(A__SEL(s(mark(z0)), a__from(mark(x2))), MARK(s(z0)))
   A__SEL(s(x0), cons(x1, from(x2))) -> c3(MARK(x0))
   A__SEL(s(cons(z0, z1)), cons(x1, from(x2))) -> c3(MARK(cons(z0, z1)))
   A__SEL(s(0), cons(x1, from(x2))) -> c3(A__SEL(0, a__from(mark(x2))))
   A__SEL(s(x0), cons(x1, sel(x2, from(z0)))) -> c3(A__SEL(mark(x0), a__sel(mark(x2), a__from(mark(z0)))), MARK(x0))
   A__SEL(s(x0), cons(x1, sel(x2, sel(z0, z1)))) -> c3(A__SEL(mark(x0), a__sel(mark(x2), a__sel(mark(z0), mark(z1)))), MARK(x0))
   A__SEL(s(x0), cons(x1, sel(x2, cons(z0, z1)))) -> c3(A__SEL(mark(x0), a__sel(mark(x2), cons(mark(z0), z1))), MARK(x0))
   A__SEL(s(x0), cons(x1, sel(x2, s(z0)))) -> c3(A__SEL(mark(x0), a__sel(mark(x2), s(mark(z0)))), MARK(x0))
   A__SEL(s(x0), cons(x1, sel(x2, 0))) -> c3(A__SEL(mark(x0), a__sel(mark(x2), 0)), MARK(x0))
   A__SEL(s(x0), cons(x1, sel(from(z0), x3))) -> c3(A__SEL(mark(x0), a__sel(a__from(mark(z0)), mark(x3))), MARK(x0))
   A__SEL(s(x0), cons(x1, sel(sel(z0, z1), x3))) -> c3(A__SEL(mark(x0), a__sel(a__sel(mark(z0), mark(z1)), mark(x3))), MARK(x0))
   A__SEL(s(x0), cons(x1, sel(cons(z0, z1), x3))) -> c3(A__SEL(mark(x0), a__sel(cons(mark(z0), z1), mark(x3))), MARK(x0))
   A__SEL(s(x0), cons(x1, sel(s(z0), x3))) -> c3(A__SEL(mark(x0), a__sel(s(mark(z0)), mark(x3))), MARK(x0))
   A__SEL(s(x0), cons(x1, sel(0, x3))) -> c3(A__SEL(mark(x0), a__sel(0, mark(x3))), MARK(x0))
   A__SEL(s(from(z0)), cons(x1, sel(x2, x3))) -> c3(A__SEL(a__from(mark(z0)), a__sel(mark(x2), mark(x3))), MARK(from(z0)))
   A__SEL(s(sel(z0, z1)), cons(x1, sel(x2, x3))) -> c3(A__SEL(a__sel(mark(z0), mark(z1)), a__sel(mark(x2), mark(x3))), MARK(sel(z0, z1)))
   A__SEL(s(s(z0)), cons(x1, sel(x2, x3))) -> c3(A__SEL(s(mark(z0)), a__sel(mark(x2), mark(x3))), MARK(s(z0)))
   A__SEL(s(x0), cons(x1, sel(x2, x3))) -> c3(MARK(x0))
   A__SEL(s(cons(z0, z1)), cons(x1, sel(x2, x3))) -> c3(MARK(cons(z0, z1)))
   A__SEL(s(0), cons(x1, sel(x2, x3))) -> c3(A__SEL(0, a__sel(mark(x2), mark(x3))))
   A__SEL(s(x0), cons(x1, cons(from(z0), x3))) -> c3(A__SEL(mark(x0), cons(a__from(mark(z0)), x3)), MARK(x0))
   A__SEL(s(x0), cons(x1, cons(sel(z0, z1), x3))) -> c3(A__SEL(mark(x0), cons(a__sel(mark(z0), mark(z1)), x3)), MARK(x0))
   A__SEL(s(x0), cons(x1, cons(cons(z0, z1), x3))) -> c3(A__SEL(mark(x0), cons(cons(mark(z0), z1), x3)), MARK(x0))
   A__SEL(s(x0), cons(x1, cons(s(z0), x3))) -> c3(A__SEL(mark(x0), cons(s(mark(z0)), x3)), MARK(x0))
   A__SEL(s(x0), cons(x1, cons(0, x3))) -> c3(A__SEL(mark(x0), cons(0, x3)), MARK(x0))
   A__SEL(s(from(z0)), cons(x1, cons(x2, x3))) -> c3(A__SEL(a__from(mark(z0)), cons(mark(x2), x3)), MARK(from(z0)))
   A__SEL(s(sel(z0, z1)), cons(x1, cons(x2, x3))) -> c3(A__SEL(a__sel(mark(z0), mark(z1)), cons(mark(x2), x3)), MARK(sel(z0, z1)))
   A__SEL(s(s(z0)), cons(x1, cons(x2, x3))) -> c3(A__SEL(s(mark(z0)), cons(mark(x2), x3)), MARK(s(z0)))
   A__SEL(s(cons(z0, z1)), cons(x1, cons(x2, x3))) -> c3(MARK(cons(z0, z1)))
   A__SEL(s(0), cons(x1, cons(x2, x3))) -> c3(A__SEL(0, cons(mark(x2), x3)))
   A__SEL(s(from(from(z0))), cons(x1, x2)) -> c3(A__SEL(a__from(a__from(mark(z0))), mark(x2)), MARK(from(from(z0))))
   A__SEL(s(from(sel(z0, z1))), cons(x1, x2)) -> c3(A__SEL(a__from(a__sel(mark(z0), mark(z1))), mark(x2)), MARK(from(sel(z0, z1))))
   A__SEL(s(from(cons(z0, z1))), cons(x1, x2)) -> c3(A__SEL(a__from(cons(mark(z0), z1)), mark(x2)), MARK(from(cons(z0, z1))))
   A__SEL(s(from(s(z0))), cons(x1, x2)) -> c3(A__SEL(a__from(s(mark(z0))), mark(x2)), MARK(from(s(z0))))
   A__SEL(s(from(0)), cons(x1, x2)) -> c3(A__SEL(a__from(0), mark(x2)), MARK(from(0)))
   A__SEL(s(from(x0)), cons(x1, x2)) -> c3(MARK(from(x0)))
   A__SEL(s(from(x0)), cons(x1, s(z0))) -> c3(MARK(from(x0)))
   A__SEL(s(from(x0)), cons(x1, 0)) -> c3(MARK(from(x0)))
   A__SEL(s(sel(x0, from(z0))), cons(x2, x3)) -> c3(A__SEL(a__sel(mark(x0), a__from(mark(z0))), mark(x3)), MARK(sel(x0, from(z0))))
   A__SEL(s(sel(x0, sel(z0, z1))), cons(x2, x3)) -> c3(A__SEL(a__sel(mark(x0), a__sel(mark(z0), mark(z1))), mark(x3)), MARK(sel(x0, sel(z0, z1))))
   A__SEL(s(sel(x0, cons(z0, z1))), cons(x2, x3)) -> c3(A__SEL(a__sel(mark(x0), cons(mark(z0), z1)), mark(x3)), MARK(sel(x0, cons(z0, z1))))
   A__SEL(s(sel(x0, s(z0))), cons(x2, x3)) -> c3(A__SEL(a__sel(mark(x0), s(mark(z0))), mark(x3)), MARK(sel(x0, s(z0))))
   A__SEL(s(sel(x0, 0)), cons(x2, x3)) -> c3(A__SEL(a__sel(mark(x0), 0), mark(x3)), MARK(sel(x0, 0)))
   A__SEL(s(sel(from(z0), x1)), cons(x2, x3)) -> c3(A__SEL(a__sel(a__from(mark(z0)), mark(x1)), mark(x3)), MARK(sel(from(z0), x1)))
   A__SEL(s(sel(sel(z0, z1), x1)), cons(x2, x3)) -> c3(A__SEL(a__sel(a__sel(mark(z0), mark(z1)), mark(x1)), mark(x3)), MARK(sel(sel(z0, z1), x1)))
   A__SEL(s(sel(cons(z0, z1), x1)), cons(x2, x3)) -> c3(A__SEL(a__sel(cons(mark(z0), z1), mark(x1)), mark(x3)), MARK(sel(cons(z0, z1), x1)))
   A__SEL(s(sel(s(z0), x1)), cons(x2, x3)) -> c3(A__SEL(a__sel(s(mark(z0)), mark(x1)), mark(x3)), MARK(sel(s(z0), x1)))
   A__SEL(s(sel(0, x1)), cons(x2, x3)) -> c3(A__SEL(a__sel(0, mark(x1)), mark(x3)), MARK(sel(0, x1)))
   A__SEL(s(sel(x0, x1)), cons(x2, s(z0))) -> c3(MARK(sel(x0, x1)))
   A__SEL(s(sel(x0, x1)), cons(x2, 0)) -> c3(MARK(sel(x0, x1)))
   A__SEL(s(sel(x0, x1)), cons(x2, x3)) -> c3(MARK(sel(x0, x1)))
   A__SEL(s(s(from(z0))), cons(x1, x2)) -> c3(A__SEL(s(a__from(mark(z0))), mark(x2)), MARK(s(from(z0))))
   A__SEL(s(s(sel(z0, z1))), cons(x1, x2)) -> c3(A__SEL(s(a__sel(mark(z0), mark(z1))), mark(x2)), MARK(s(sel(z0, z1))))
   A__SEL(s(s(cons(z0, z1))), cons(x1, x2)) -> c3(A__SEL(s(cons(mark(z0), z1)), mark(x2)), MARK(s(cons(z0, z1))))
   A__SEL(s(s(s(z0))), cons(x1, x2)) -> c3(A__SEL(s(s(mark(z0))), mark(x2)), MARK(s(s(z0))))
   A__SEL(s(s(0)), cons(x1, x2)) -> c3(A__SEL(s(0), mark(x2)), MARK(s(0)))
   A__SEL(s(s(x0)), cons(x1, x2)) -> c3(MARK(s(x0)))
   A__SEL(s(s(x0)), cons(x1, s(z0))) -> c3(MARK(s(x0)))
   A__SEL(s(s(x0)), cons(x1, 0)) -> c3(MARK(s(x0)))
   A__SEL(s(x0), cons(x1, from(x2))) -> c4(A__SEL(mark(x0), cons(mark(mark(x2)), from(s(mark(x2))))), MARK(from(x2)))
   A__SEL(s(x0), cons(x1, from(from(z0)))) -> c4(A__SEL(mark(x0), a__from(a__from(mark(z0)))), MARK(from(from(z0))))
   A__SEL(s(x0), cons(x1, from(sel(z0, z1)))) -> c4(A__SEL(mark(x0), a__from(a__sel(mark(z0), mark(z1)))), MARK(from(sel(z0, z1))))
   A__SEL(s(x0), cons(x1, from(cons(z0, z1)))) -> c4(A__SEL(mark(x0), a__from(cons(mark(z0), z1))), MARK(from(cons(z0, z1))))
   A__SEL(s(x0), cons(x1, from(s(z0)))) -> c4(A__SEL(mark(x0), a__from(s(mark(z0)))), MARK(from(s(z0))))
   A__SEL(s(x0), cons(x1, from(0))) -> c4(A__SEL(mark(x0), a__from(0)), MARK(from(0)))
   A__SEL(s(from(z0)), cons(x1, from(x2))) -> c4(A__SEL(a__from(mark(z0)), a__from(mark(x2))), MARK(from(x2)))
   A__SEL(s(sel(z0, z1)), cons(x1, from(x2))) -> c4(A__SEL(a__sel(mark(z0), mark(z1)), a__from(mark(x2))), MARK(from(x2)))
   A__SEL(s(s(z0)), cons(x1, from(x2))) -> c4(A__SEL(s(mark(z0)), a__from(mark(x2))), MARK(from(x2)))
   A__SEL(s(0), cons(x1, from(x2))) -> c4(A__SEL(0, a__from(mark(x2))), MARK(from(x2)))
   A__SEL(s(x0), cons(x1, from(x2))) -> c4(MARK(from(x2)))
   A__SEL(s(cons(z0, z1)), cons(x1, from(x2))) -> c4(MARK(from(x2)))
   A__SEL(s(x0), cons(x1, sel(x2, from(z0)))) -> c4(A__SEL(mark(x0), a__sel(mark(x2), a__from(mark(z0)))), MARK(sel(x2, from(z0))))
   A__SEL(s(x0), cons(x1, sel(x2, sel(z0, z1)))) -> c4(A__SEL(mark(x0), a__sel(mark(x2), a__sel(mark(z0), mark(z1)))), MARK(sel(x2, sel(z0, z1))))
   A__SEL(s(x0), cons(x1, sel(x2, cons(z0, z1)))) -> c4(A__SEL(mark(x0), a__sel(mark(x2), cons(mark(z0), z1))), MARK(sel(x2, cons(z0, z1))))
   A__SEL(s(x0), cons(x1, sel(x2, s(z0)))) -> c4(A__SEL(mark(x0), a__sel(mark(x2), s(mark(z0)))), MARK(sel(x2, s(z0))))
   A__SEL(s(x0), cons(x1, sel(x2, 0))) -> c4(A__SEL(mark(x0), a__sel(mark(x2), 0)), MARK(sel(x2, 0)))
   A__SEL(s(x0), cons(x1, sel(from(z0), x3))) -> c4(A__SEL(mark(x0), a__sel(a__from(mark(z0)), mark(x3))), MARK(sel(from(z0), x3)))
   A__SEL(s(x0), cons(x1, sel(sel(z0, z1), x3))) -> c4(A__SEL(mark(x0), a__sel(a__sel(mark(z0), mark(z1)), mark(x3))), MARK(sel(sel(z0, z1), x3)))
   A__SEL(s(x0), cons(x1, sel(cons(z0, z1), x3))) -> c4(A__SEL(mark(x0), a__sel(cons(mark(z0), z1), mark(x3))), MARK(sel(cons(z0, z1), x3)))
   A__SEL(s(x0), cons(x1, sel(s(z0), x3))) -> c4(A__SEL(mark(x0), a__sel(s(mark(z0)), mark(x3))), MARK(sel(s(z0), x3)))
   A__SEL(s(x0), cons(x1, sel(0, x3))) -> c4(A__SEL(mark(x0), a__sel(0, mark(x3))), MARK(sel(0, x3)))
   A__SEL(s(from(z0)), cons(x1, sel(x2, x3))) -> c4(A__SEL(a__from(mark(z0)), a__sel(mark(x2), mark(x3))), MARK(sel(x2, x3)))
   A__SEL(s(sel(z0, z1)), cons(x1, sel(x2, x3))) -> c4(A__SEL(a__sel(mark(z0), mark(z1)), a__sel(mark(x2), mark(x3))), MARK(sel(x2, x3)))
   A__SEL(s(s(z0)), cons(x1, sel(x2, x3))) -> c4(A__SEL(s(mark(z0)), a__sel(mark(x2), mark(x3))), MARK(sel(x2, x3)))
   A__SEL(s(0), cons(x1, sel(x2, x3))) -> c4(A__SEL(0, a__sel(mark(x2), mark(x3))), MARK(sel(x2, x3)))
   A__SEL(s(x0), cons(x1, sel(x2, x3))) -> c4(MARK(sel(x2, x3)))
   A__SEL(s(cons(z0, z1)), cons(x1, sel(x2, x3))) -> c4(MARK(sel(x2, x3)))
   A__SEL(s(x0), cons(x1, cons(from(z0), x3))) -> c4(A__SEL(mark(x0), cons(a__from(mark(z0)), x3)), MARK(cons(from(z0), x3)))
   A__SEL(s(x0), cons(x1, cons(sel(z0, z1), x3))) -> c4(A__SEL(mark(x0), cons(a__sel(mark(z0), mark(z1)), x3)), MARK(cons(sel(z0, z1), x3)))
   A__SEL(s(x0), cons(x1, cons(cons(z0, z1), x3))) -> c4(A__SEL(mark(x0), cons(cons(mark(z0), z1), x3)), MARK(cons(cons(z0, z1), x3)))
   A__SEL(s(x0), cons(x1, cons(s(z0), x3))) -> c4(A__SEL(mark(x0), cons(s(mark(z0)), x3)), MARK(cons(s(z0), x3)))
   A__SEL(s(x0), cons(x1, cons(0, x3))) -> c4(A__SEL(mark(x0), cons(0, x3)), MARK(cons(0, x3)))
   A__SEL(s(from(z0)), cons(x1, cons(x2, x3))) -> c4(A__SEL(a__from(mark(z0)), cons(mark(x2), x3)), MARK(cons(x2, x3)))
   A__SEL(s(sel(z0, z1)), cons(x1, cons(x2, x3))) -> c4(A__SEL(a__sel(mark(z0), mark(z1)), cons(mark(x2), x3)), MARK(cons(x2, x3)))
   A__SEL(s(s(z0)), cons(x1, cons(x2, x3))) -> c4(A__SEL(s(mark(z0)), cons(mark(x2), x3)), MARK(cons(x2, x3)))
   A__SEL(s(0), cons(x1, cons(x2, x3))) -> c4(A__SEL(0, cons(mark(x2), x3)), MARK(cons(x2, x3)))
   A__SEL(s(x0), cons(x1, cons(x2, x3))) -> c4(MARK(cons(x2, x3)))
   A__SEL(s(cons(z0, z1)), cons(x1, cons(x2, x3))) -> c4(MARK(cons(x2, x3)))
   A__SEL(s(from(from(z0))), cons(x1, x2)) -> c4(A__SEL(a__from(a__from(mark(z0))), mark(x2)), MARK(x2))
   A__SEL(s(from(sel(z0, z1))), cons(x1, x2)) -> c4(A__SEL(a__from(a__sel(mark(z0), mark(z1))), mark(x2)), MARK(x2))
   A__SEL(s(from(cons(z0, z1))), cons(x1, x2)) -> c4(A__SEL(a__from(cons(mark(z0), z1)), mark(x2)), MARK(x2))
   A__SEL(s(from(s(z0))), cons(x1, x2)) -> c4(A__SEL(a__from(s(mark(z0))), mark(x2)), MARK(x2))
   A__SEL(s(from(0)), cons(x1, x2)) -> c4(A__SEL(a__from(0), mark(x2)), MARK(x2))
   A__SEL(s(from(x0)), cons(x1, s(z0))) -> c4(MARK(s(z0)))
   A__SEL(s(from(x0)), cons(x1, x2)) -> c4(MARK(x2))
   A__SEL(s(sel(x0, from(z0))), cons(x2, x3)) -> c4(A__SEL(a__sel(mark(x0), a__from(mark(z0))), mark(x3)), MARK(x3))
   A__SEL(s(sel(x0, sel(z0, z1))), cons(x2, x3)) -> c4(A__SEL(a__sel(mark(x0), a__sel(mark(z0), mark(z1))), mark(x3)), MARK(x3))
   A__SEL(s(sel(x0, cons(z0, z1))), cons(x2, x3)) -> c4(A__SEL(a__sel(mark(x0), cons(mark(z0), z1)), mark(x3)), MARK(x3))
   A__SEL(s(sel(x0, s(z0))), cons(x2, x3)) -> c4(A__SEL(a__sel(mark(x0), s(mark(z0))), mark(x3)), MARK(x3))
   A__SEL(s(sel(x0, 0)), cons(x2, x3)) -> c4(A__SEL(a__sel(mark(x0), 0), mark(x3)), MARK(x3))
   A__SEL(s(sel(from(z0), x1)), cons(x2, x3)) -> c4(A__SEL(a__sel(a__from(mark(z0)), mark(x1)), mark(x3)), MARK(x3))
   A__SEL(s(sel(sel(z0, z1), x1)), cons(x2, x3)) -> c4(A__SEL(a__sel(a__sel(mark(z0), mark(z1)), mark(x1)), mark(x3)), MARK(x3))
   A__SEL(s(sel(cons(z0, z1), x1)), cons(x2, x3)) -> c4(A__SEL(a__sel(cons(mark(z0), z1), mark(x1)), mark(x3)), MARK(x3))
   A__SEL(s(sel(s(z0), x1)), cons(x2, x3)) -> c4(A__SEL(a__sel(s(mark(z0)), mark(x1)), mark(x3)), MARK(x3))
   A__SEL(s(sel(0, x1)), cons(x2, x3)) -> c4(A__SEL(a__sel(0, mark(x1)), mark(x3)), MARK(x3))
   A__SEL(s(sel(x0, x1)), cons(x2, s(z0))) -> c4(MARK(s(z0)))
   A__SEL(s(sel(x0, x1)), cons(x2, x3)) -> c4(MARK(x3))
   A__SEL(s(s(from(z0))), cons(x1, x2)) -> c4(A__SEL(s(a__from(mark(z0))), mark(x2)), MARK(x2))
   A__SEL(s(s(sel(z0, z1))), cons(x1, x2)) -> c4(A__SEL(s(a__sel(mark(z0), mark(z1))), mark(x2)), MARK(x2))
   A__SEL(s(s(cons(z0, z1))), cons(x1, x2)) -> c4(A__SEL(s(cons(mark(z0), z1)), mark(x2)), MARK(x2))
   A__SEL(s(s(s(z0))), cons(x1, x2)) -> c4(A__SEL(s(s(mark(z0))), mark(x2)), MARK(x2))
   A__SEL(s(s(0)), cons(x1, x2)) -> c4(A__SEL(s(0), mark(x2)), MARK(x2))
   A__SEL(s(s(x0)), cons(x1, s(z0))) -> c4(MARK(s(z0)))
   A__SEL(s(0), cons(x0, s(z0))) -> c4(MARK(s(z0)))
   MARK(sel(x0, from(x1))) -> c7(A__SEL(mark(x0), cons(mark(mark(x1)), from(s(mark(x1))))), MARK(x0))
   MARK(sel(x0, from(from(z0)))) -> c7(A__SEL(mark(x0), a__from(a__from(mark(z0)))), MARK(x0))
   MARK(sel(x0, from(sel(z0, z1)))) -> c7(A__SEL(mark(x0), a__from(a__sel(mark(z0), mark(z1)))), MARK(x0))
   MARK(sel(x0, from(cons(z0, z1)))) -> c7(A__SEL(mark(x0), a__from(cons(mark(z0), z1))), MARK(x0))
   MARK(sel(x0, from(s(z0)))) -> c7(A__SEL(mark(x0), a__from(s(mark(z0)))), MARK(x0))
   MARK(sel(x0, from(0))) -> c7(A__SEL(mark(x0), a__from(0)), MARK(x0))
   MARK(sel(from(z0), from(x1))) -> c7(A__SEL(a__from(mark(z0)), a__from(mark(x1))), MARK(from(z0)))
   MARK(sel(sel(z0, z1), from(x1))) -> c7(A__SEL(a__sel(mark(z0), mark(z1)), a__from(mark(x1))), MARK(sel(z0, z1)))
   MARK(sel(s(z0), from(x1))) -> c7(A__SEL(s(mark(z0)), a__from(mark(x1))), MARK(s(z0)))
   MARK(sel(x0, from(x1))) -> c7(MARK(x0))
   MARK(sel(cons(z0, z1), from(x1))) -> c7(MARK(cons(z0, z1)))
   MARK(sel(0, from(x1))) -> c7(A__SEL(0, a__from(mark(x1))))
   MARK(sel(x0, sel(x1, from(z0)))) -> c7(A__SEL(mark(x0), a__sel(mark(x1), a__from(mark(z0)))), MARK(x0))
   MARK(sel(x0, sel(x1, sel(z0, z1)))) -> c7(A__SEL(mark(x0), a__sel(mark(x1), a__sel(mark(z0), mark(z1)))), MARK(x0))
   MARK(sel(x0, sel(x1, cons(z0, z1)))) -> c7(A__SEL(mark(x0), a__sel(mark(x1), cons(mark(z0), z1))), MARK(x0))
   MARK(sel(x0, sel(x1, s(z0)))) -> c7(A__SEL(mark(x0), a__sel(mark(x1), s(mark(z0)))), MARK(x0))
   MARK(sel(x0, sel(x1, 0))) -> c7(A__SEL(mark(x0), a__sel(mark(x1), 0)), MARK(x0))
   MARK(sel(x0, sel(from(z0), x2))) -> c7(A__SEL(mark(x0), a__sel(a__from(mark(z0)), mark(x2))), MARK(x0))
   MARK(sel(x0, sel(sel(z0, z1), x2))) -> c7(A__SEL(mark(x0), a__sel(a__sel(mark(z0), mark(z1)), mark(x2))), MARK(x0))
   MARK(sel(x0, sel(cons(z0, z1), x2))) -> c7(A__SEL(mark(x0), a__sel(cons(mark(z0), z1), mark(x2))), MARK(x0))
   MARK(sel(x0, sel(s(z0), x2))) -> c7(A__SEL(mark(x0), a__sel(s(mark(z0)), mark(x2))), MARK(x0))
   MARK(sel(x0, sel(0, x2))) -> c7(A__SEL(mark(x0), a__sel(0, mark(x2))), MARK(x0))
   MARK(sel(from(z0), sel(x1, x2))) -> c7(A__SEL(a__from(mark(z0)), a__sel(mark(x1), mark(x2))), MARK(from(z0)))
   MARK(sel(sel(z0, z1), sel(x1, x2))) -> c7(A__SEL(a__sel(mark(z0), mark(z1)), a__sel(mark(x1), mark(x2))), MARK(sel(z0, z1)))
   MARK(sel(s(z0), sel(x1, x2))) -> c7(A__SEL(s(mark(z0)), a__sel(mark(x1), mark(x2))), MARK(s(z0)))
   MARK(sel(x0, sel(x1, x2))) -> c7(MARK(x0))
   MARK(sel(cons(z0, z1), sel(x1, x2))) -> c7(MARK(cons(z0, z1)))
   MARK(sel(0, sel(x1, x2))) -> c7(A__SEL(0, a__sel(mark(x1), mark(x2))))
K tuples:none
Defined Rule Symbols:   a__from_1, a__sel_2, mark_1

Defined Pair Symbols:   A__FROM_1, A__SEL_2, MARK_1

Compound Symbols:   c_1, c2_1, c6_2, c9_1, c10_1, c3_1, c4_1, c7_2, c7_1, c8_2, c8_1, c3_2, c4_2


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

(149) CdtNarrowingProof (BOTH BOUNDS(ID, ID))
Use narrowing to replace MARK(sel(x0, cons(z0, z1))) -> c7(A__SEL(mark(x0), cons(mark(z0), z1)), MARK(x0)) by 
   MARK(sel(x0, cons(from(z0), x2))) -> c7(A__SEL(mark(x0), cons(a__from(mark(z0)), x2)), MARK(x0))
   MARK(sel(x0, cons(sel(z0, z1), x2))) -> c7(A__SEL(mark(x0), cons(a__sel(mark(z0), mark(z1)), x2)), MARK(x0))
   MARK(sel(x0, cons(cons(z0, z1), x2))) -> c7(A__SEL(mark(x0), cons(cons(mark(z0), z1), x2)), MARK(x0))
   MARK(sel(x0, cons(s(z0), x2))) -> c7(A__SEL(mark(x0), cons(s(mark(z0)), x2)), MARK(x0))
   MARK(sel(x0, cons(0, x2))) -> c7(A__SEL(mark(x0), cons(0, x2)), MARK(x0))
   MARK(sel(from(z0), cons(x1, x2))) -> c7(A__SEL(a__from(mark(z0)), cons(mark(x1), x2)), MARK(from(z0)))
   MARK(sel(sel(z0, z1), cons(x1, x2))) -> c7(A__SEL(a__sel(mark(z0), mark(z1)), cons(mark(x1), x2)), MARK(sel(z0, z1)))
   MARK(sel(cons(z0, z1), cons(x1, x2))) -> c7(A__SEL(cons(mark(z0), z1), cons(mark(x1), x2)), MARK(cons(z0, z1)))
   MARK(sel(s(z0), cons(x1, x2))) -> c7(A__SEL(s(mark(z0)), cons(mark(x1), x2)), MARK(s(z0)))
   MARK(sel(0, cons(x1, x2))) -> c7(A__SEL(0, cons(mark(x1), x2)), MARK(0))

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

(150)
Obligation:
Complexity Dependency Tuples Problem

Rules:
   a__from(z0) -> cons(mark(z0), from(s(z0)))
   a__from(z0) -> from(z0)
   a__sel(0, cons(z0, z1)) -> mark(z0)
   a__sel(s(z0), cons(z1, z2)) -> a__sel(mark(z0), mark(z2))
   a__sel(z0, z1) -> sel(z0, z1)
   mark(from(z0)) -> a__from(mark(z0))
   mark(sel(z0, z1)) -> a__sel(mark(z0), mark(z1))
   mark(cons(z0, z1)) -> cons(mark(z0), z1)
   mark(s(z0)) -> s(mark(z0))
   mark(0) -> 0
Tuples:
   A__FROM(z0) -> c(MARK(z0))
   A__SEL(0, cons(z0, z1)) -> c2(MARK(z0))
   MARK(from(z0)) -> c6(A__FROM(mark(z0)), MARK(z0))
   MARK(cons(z0, z1)) -> c9(MARK(z0))
   MARK(s(z0)) -> c10(MARK(z0))
   A__SEL(s(x0), cons(x1, s(z0))) -> c3(MARK(x0))
   A__SEL(s(x0), cons(x1, 0)) -> c3(MARK(x0))
   A__SEL(s(cons(z0, z1)), cons(x1, x2)) -> c3(MARK(cons(z0, z1)))
   A__SEL(s(x0), cons(x1, s(z0))) -> c4(MARK(s(z0)))
   A__SEL(s(cons(z0, z1)), cons(x1, x2)) -> c4(MARK(x2))
   MARK(sel(from(z0), x1)) -> c7(A__SEL(a__from(mark(z0)), mark(x1)), MARK(from(z0)))
   MARK(sel(sel(z0, z1), x1)) -> c7(A__SEL(a__sel(mark(z0), mark(z1)), mark(x1)), MARK(sel(z0, z1)))
   MARK(sel(s(z0), x1)) -> c7(A__SEL(s(mark(z0)), mark(x1)), MARK(s(z0)))
   MARK(sel(x0, s(z0))) -> c7(MARK(x0))
   MARK(sel(x0, 0)) -> c7(MARK(x0))
   MARK(sel(cons(z0, z1), x1)) -> c7(MARK(cons(z0, z1)))
   MARK(sel(0, x1)) -> c7(A__SEL(0, mark(x1)))
   MARK(sel(x0, from(z0))) -> c8(A__SEL(mark(x0), a__from(mark(z0))), MARK(from(z0)))
   MARK(sel(x0, sel(z0, z1))) -> c8(A__SEL(mark(x0), a__sel(mark(z0), mark(z1))), MARK(sel(z0, z1)))
   MARK(sel(x0, cons(z0, z1))) -> c8(A__SEL(mark(x0), cons(mark(z0), z1)), MARK(cons(z0, z1)))
   MARK(sel(from(z0), x1)) -> c8(A__SEL(a__from(mark(z0)), mark(x1)), MARK(x1))
   MARK(sel(sel(z0, z1), x1)) -> c8(A__SEL(a__sel(mark(z0), mark(z1)), mark(x1)), MARK(x1))
   MARK(sel(s(z0), x1)) -> c8(A__SEL(s(mark(z0)), mark(x1)), MARK(x1))
   MARK(sel(0, x1)) -> c8(A__SEL(0, mark(x1)), MARK(x1))
   MARK(sel(x0, s(z0))) -> c8(MARK(s(z0)))
   MARK(sel(cons(z0, z1), x1)) -> c8(MARK(x1))
   A__SEL(s(x0), cons(x1, from(x2))) -> c3(A__SEL(mark(x0), cons(mark(mark(x2)), from(s(mark(x2))))), MARK(x0))
   A__SEL(s(x0), cons(x1, from(from(z0)))) -> c3(A__SEL(mark(x0), a__from(a__from(mark(z0)))), MARK(x0))
   A__SEL(s(x0), cons(x1, from(sel(z0, z1)))) -> c3(A__SEL(mark(x0), a__from(a__sel(mark(z0), mark(z1)))), MARK(x0))
   A__SEL(s(x0), cons(x1, from(cons(z0, z1)))) -> c3(A__SEL(mark(x0), a__from(cons(mark(z0), z1))), MARK(x0))
   A__SEL(s(x0), cons(x1, from(s(z0)))) -> c3(A__SEL(mark(x0), a__from(s(mark(z0)))), MARK(x0))
   A__SEL(s(x0), cons(x1, from(0))) -> c3(A__SEL(mark(x0), a__from(0)), MARK(x0))
   A__SEL(s(from(z0)), cons(x1, from(x2))) -> c3(A__SEL(a__from(mark(z0)), a__from(mark(x2))), MARK(from(z0)))
   A__SEL(s(sel(z0, z1)), cons(x1, from(x2))) -> c3(A__SEL(a__sel(mark(z0), mark(z1)), a__from(mark(x2))), MARK(sel(z0, z1)))
   A__SEL(s(s(z0)), cons(x1, from(x2))) -> c3(A__SEL(s(mark(z0)), a__from(mark(x2))), MARK(s(z0)))
   A__SEL(s(x0), cons(x1, from(x2))) -> c3(MARK(x0))
   A__SEL(s(cons(z0, z1)), cons(x1, from(x2))) -> c3(MARK(cons(z0, z1)))
   A__SEL(s(0), cons(x1, from(x2))) -> c3(A__SEL(0, a__from(mark(x2))))
   A__SEL(s(x0), cons(x1, sel(x2, from(z0)))) -> c3(A__SEL(mark(x0), a__sel(mark(x2), a__from(mark(z0)))), MARK(x0))
   A__SEL(s(x0), cons(x1, sel(x2, sel(z0, z1)))) -> c3(A__SEL(mark(x0), a__sel(mark(x2), a__sel(mark(z0), mark(z1)))), MARK(x0))
   A__SEL(s(x0), cons(x1, sel(x2, cons(z0, z1)))) -> c3(A__SEL(mark(x0), a__sel(mark(x2), cons(mark(z0), z1))), MARK(x0))
   A__SEL(s(x0), cons(x1, sel(x2, s(z0)))) -> c3(A__SEL(mark(x0), a__sel(mark(x2), s(mark(z0)))), MARK(x0))
   A__SEL(s(x0), cons(x1, sel(x2, 0))) -> c3(A__SEL(mark(x0), a__sel(mark(x2), 0)), MARK(x0))
   A__SEL(s(x0), cons(x1, sel(from(z0), x3))) -> c3(A__SEL(mark(x0), a__sel(a__from(mark(z0)), mark(x3))), MARK(x0))
   A__SEL(s(x0), cons(x1, sel(sel(z0, z1), x3))) -> c3(A__SEL(mark(x0), a__sel(a__sel(mark(z0), mark(z1)), mark(x3))), MARK(x0))
   A__SEL(s(x0), cons(x1, sel(cons(z0, z1), x3))) -> c3(A__SEL(mark(x0), a__sel(cons(mark(z0), z1), mark(x3))), MARK(x0))
   A__SEL(s(x0), cons(x1, sel(s(z0), x3))) -> c3(A__SEL(mark(x0), a__sel(s(mark(z0)), mark(x3))), MARK(x0))
   A__SEL(s(x0), cons(x1, sel(0, x3))) -> c3(A__SEL(mark(x0), a__sel(0, mark(x3))), MARK(x0))
   A__SEL(s(from(z0)), cons(x1, sel(x2, x3))) -> c3(A__SEL(a__from(mark(z0)), a__sel(mark(x2), mark(x3))), MARK(from(z0)))
   A__SEL(s(sel(z0, z1)), cons(x1, sel(x2, x3))) -> c3(A__SEL(a__sel(mark(z0), mark(z1)), a__sel(mark(x2), mark(x3))), MARK(sel(z0, z1)))
   A__SEL(s(s(z0)), cons(x1, sel(x2, x3))) -> c3(A__SEL(s(mark(z0)), a__sel(mark(x2), mark(x3))), MARK(s(z0)))
   A__SEL(s(x0), cons(x1, sel(x2, x3))) -> c3(MARK(x0))
   A__SEL(s(cons(z0, z1)), cons(x1, sel(x2, x3))) -> c3(MARK(cons(z0, z1)))
   A__SEL(s(0), cons(x1, sel(x2, x3))) -> c3(A__SEL(0, a__sel(mark(x2), mark(x3))))
   A__SEL(s(x0), cons(x1, cons(from(z0), x3))) -> c3(A__SEL(mark(x0), cons(a__from(mark(z0)), x3)), MARK(x0))
   A__SEL(s(x0), cons(x1, cons(sel(z0, z1), x3))) -> c3(A__SEL(mark(x0), cons(a__sel(mark(z0), mark(z1)), x3)), MARK(x0))
   A__SEL(s(x0), cons(x1, cons(cons(z0, z1), x3))) -> c3(A__SEL(mark(x0), cons(cons(mark(z0), z1), x3)), MARK(x0))
   A__SEL(s(x0), cons(x1, cons(s(z0), x3))) -> c3(A__SEL(mark(x0), cons(s(mark(z0)), x3)), MARK(x0))
   A__SEL(s(x0), cons(x1, cons(0, x3))) -> c3(A__SEL(mark(x0), cons(0, x3)), MARK(x0))
   A__SEL(s(from(z0)), cons(x1, cons(x2, x3))) -> c3(A__SEL(a__from(mark(z0)), cons(mark(x2), x3)), MARK(from(z0)))
   A__SEL(s(sel(z0, z1)), cons(x1, cons(x2, x3))) -> c3(A__SEL(a__sel(mark(z0), mark(z1)), cons(mark(x2), x3)), MARK(sel(z0, z1)))
   A__SEL(s(s(z0)), cons(x1, cons(x2, x3))) -> c3(A__SEL(s(mark(z0)), cons(mark(x2), x3)), MARK(s(z0)))
   A__SEL(s(cons(z0, z1)), cons(x1, cons(x2, x3))) -> c3(MARK(cons(z0, z1)))
   A__SEL(s(0), cons(x1, cons(x2, x3))) -> c3(A__SEL(0, cons(mark(x2), x3)))
   A__SEL(s(from(from(z0))), cons(x1, x2)) -> c3(A__SEL(a__from(a__from(mark(z0))), mark(x2)), MARK(from(from(z0))))
   A__SEL(s(from(sel(z0, z1))), cons(x1, x2)) -> c3(A__SEL(a__from(a__sel(mark(z0), mark(z1))), mark(x2)), MARK(from(sel(z0, z1))))
   A__SEL(s(from(cons(z0, z1))), cons(x1, x2)) -> c3(A__SEL(a__from(cons(mark(z0), z1)), mark(x2)), MARK(from(cons(z0, z1))))
   A__SEL(s(from(s(z0))), cons(x1, x2)) -> c3(A__SEL(a__from(s(mark(z0))), mark(x2)), MARK(from(s(z0))))
   A__SEL(s(from(0)), cons(x1, x2)) -> c3(A__SEL(a__from(0), mark(x2)), MARK(from(0)))
   A__SEL(s(from(x0)), cons(x1, x2)) -> c3(MARK(from(x0)))
   A__SEL(s(from(x0)), cons(x1, s(z0))) -> c3(MARK(from(x0)))
   A__SEL(s(from(x0)), cons(x1, 0)) -> c3(MARK(from(x0)))
   A__SEL(s(sel(x0, from(z0))), cons(x2, x3)) -> c3(A__SEL(a__sel(mark(x0), a__from(mark(z0))), mark(x3)), MARK(sel(x0, from(z0))))
   A__SEL(s(sel(x0, sel(z0, z1))), cons(x2, x3)) -> c3(A__SEL(a__sel(mark(x0), a__sel(mark(z0), mark(z1))), mark(x3)), MARK(sel(x0, sel(z0, z1))))
   A__SEL(s(sel(x0, cons(z0, z1))), cons(x2, x3)) -> c3(A__SEL(a__sel(mark(x0), cons(mark(z0), z1)), mark(x3)), MARK(sel(x0, cons(z0, z1))))
   A__SEL(s(sel(x0, s(z0))), cons(x2, x3)) -> c3(A__SEL(a__sel(mark(x0), s(mark(z0))), mark(x3)), MARK(sel(x0, s(z0))))
   A__SEL(s(sel(x0, 0)), cons(x2, x3)) -> c3(A__SEL(a__sel(mark(x0), 0), mark(x3)), MARK(sel(x0, 0)))
   A__SEL(s(sel(from(z0), x1)), cons(x2, x3)) -> c3(A__SEL(a__sel(a__from(mark(z0)), mark(x1)), mark(x3)), MARK(sel(from(z0), x1)))
   A__SEL(s(sel(sel(z0, z1), x1)), cons(x2, x3)) -> c3(A__SEL(a__sel(a__sel(mark(z0), mark(z1)), mark(x1)), mark(x3)), MARK(sel(sel(z0, z1), x1)))
   A__SEL(s(sel(cons(z0, z1), x1)), cons(x2, x3)) -> c3(A__SEL(a__sel(cons(mark(z0), z1), mark(x1)), mark(x3)), MARK(sel(cons(z0, z1), x1)))
   A__SEL(s(sel(s(z0), x1)), cons(x2, x3)) -> c3(A__SEL(a__sel(s(mark(z0)), mark(x1)), mark(x3)), MARK(sel(s(z0), x1)))
   A__SEL(s(sel(0, x1)), cons(x2, x3)) -> c3(A__SEL(a__sel(0, mark(x1)), mark(x3)), MARK(sel(0, x1)))
   A__SEL(s(sel(x0, x1)), cons(x2, s(z0))) -> c3(MARK(sel(x0, x1)))
   A__SEL(s(sel(x0, x1)), cons(x2, 0)) -> c3(MARK(sel(x0, x1)))
   A__SEL(s(sel(x0, x1)), cons(x2, x3)) -> c3(MARK(sel(x0, x1)))
   A__SEL(s(s(from(z0))), cons(x1, x2)) -> c3(A__SEL(s(a__from(mark(z0))), mark(x2)), MARK(s(from(z0))))
   A__SEL(s(s(sel(z0, z1))), cons(x1, x2)) -> c3(A__SEL(s(a__sel(mark(z0), mark(z1))), mark(x2)), MARK(s(sel(z0, z1))))
   A__SEL(s(s(cons(z0, z1))), cons(x1, x2)) -> c3(A__SEL(s(cons(mark(z0), z1)), mark(x2)), MARK(s(cons(z0, z1))))
   A__SEL(s(s(s(z0))), cons(x1, x2)) -> c3(A__SEL(s(s(mark(z0))), mark(x2)), MARK(s(s(z0))))
   A__SEL(s(s(0)), cons(x1, x2)) -> c3(A__SEL(s(0), mark(x2)), MARK(s(0)))
   A__SEL(s(s(x0)), cons(x1, x2)) -> c3(MARK(s(x0)))
   A__SEL(s(s(x0)), cons(x1, s(z0))) -> c3(MARK(s(x0)))
   A__SEL(s(s(x0)), cons(x1, 0)) -> c3(MARK(s(x0)))
   A__SEL(s(x0), cons(x1, from(x2))) -> c4(A__SEL(mark(x0), cons(mark(mark(x2)), from(s(mark(x2))))), MARK(from(x2)))
   A__SEL(s(x0), cons(x1, from(from(z0)))) -> c4(A__SEL(mark(x0), a__from(a__from(mark(z0)))), MARK(from(from(z0))))
   A__SEL(s(x0), cons(x1, from(sel(z0, z1)))) -> c4(A__SEL(mark(x0), a__from(a__sel(mark(z0), mark(z1)))), MARK(from(sel(z0, z1))))
   A__SEL(s(x0), cons(x1, from(cons(z0, z1)))) -> c4(A__SEL(mark(x0), a__from(cons(mark(z0), z1))), MARK(from(cons(z0, z1))))
   A__SEL(s(x0), cons(x1, from(s(z0)))) -> c4(A__SEL(mark(x0), a__from(s(mark(z0)))), MARK(from(s(z0))))
   A__SEL(s(x0), cons(x1, from(0))) -> c4(A__SEL(mark(x0), a__from(0)), MARK(from(0)))
   A__SEL(s(from(z0)), cons(x1, from(x2))) -> c4(A__SEL(a__from(mark(z0)), a__from(mark(x2))), MARK(from(x2)))
   A__SEL(s(sel(z0, z1)), cons(x1, from(x2))) -> c4(A__SEL(a__sel(mark(z0), mark(z1)), a__from(mark(x2))), MARK(from(x2)))
   A__SEL(s(s(z0)), cons(x1, from(x2))) -> c4(A__SEL(s(mark(z0)), a__from(mark(x2))), MARK(from(x2)))
   A__SEL(s(0), cons(x1, from(x2))) -> c4(A__SEL(0, a__from(mark(x2))), MARK(from(x2)))
   A__SEL(s(x0), cons(x1, from(x2))) -> c4(MARK(from(x2)))
   A__SEL(s(cons(z0, z1)), cons(x1, from(x2))) -> c4(MARK(from(x2)))
   A__SEL(s(x0), cons(x1, sel(x2, from(z0)))) -> c4(A__SEL(mark(x0), a__sel(mark(x2), a__from(mark(z0)))), MARK(sel(x2, from(z0))))
   A__SEL(s(x0), cons(x1, sel(x2, sel(z0, z1)))) -> c4(A__SEL(mark(x0), a__sel(mark(x2), a__sel(mark(z0), mark(z1)))), MARK(sel(x2, sel(z0, z1))))
   A__SEL(s(x0), cons(x1, sel(x2, cons(z0, z1)))) -> c4(A__SEL(mark(x0), a__sel(mark(x2), cons(mark(z0), z1))), MARK(sel(x2, cons(z0, z1))))
   A__SEL(s(x0), cons(x1, sel(x2, s(z0)))) -> c4(A__SEL(mark(x0), a__sel(mark(x2), s(mark(z0)))), MARK(sel(x2, s(z0))))
   A__SEL(s(x0), cons(x1, sel(x2, 0))) -> c4(A__SEL(mark(x0), a__sel(mark(x2), 0)), MARK(sel(x2, 0)))
   A__SEL(s(x0), cons(x1, sel(from(z0), x3))) -> c4(A__SEL(mark(x0), a__sel(a__from(mark(z0)), mark(x3))), MARK(sel(from(z0), x3)))
   A__SEL(s(x0), cons(x1, sel(sel(z0, z1), x3))) -> c4(A__SEL(mark(x0), a__sel(a__sel(mark(z0), mark(z1)), mark(x3))), MARK(sel(sel(z0, z1), x3)))
   A__SEL(s(x0), cons(x1, sel(cons(z0, z1), x3))) -> c4(A__SEL(mark(x0), a__sel(cons(mark(z0), z1), mark(x3))), MARK(sel(cons(z0, z1), x3)))
   A__SEL(s(x0), cons(x1, sel(s(z0), x3))) -> c4(A__SEL(mark(x0), a__sel(s(mark(z0)), mark(x3))), MARK(sel(s(z0), x3)))
   A__SEL(s(x0), cons(x1, sel(0, x3))) -> c4(A__SEL(mark(x0), a__sel(0, mark(x3))), MARK(sel(0, x3)))
   A__SEL(s(from(z0)), cons(x1, sel(x2, x3))) -> c4(A__SEL(a__from(mark(z0)), a__sel(mark(x2), mark(x3))), MARK(sel(x2, x3)))
   A__SEL(s(sel(z0, z1)), cons(x1, sel(x2, x3))) -> c4(A__SEL(a__sel(mark(z0), mark(z1)), a__sel(mark(x2), mark(x3))), MARK(sel(x2, x3)))
   A__SEL(s(s(z0)), cons(x1, sel(x2, x3))) -> c4(A__SEL(s(mark(z0)), a__sel(mark(x2), mark(x3))), MARK(sel(x2, x3)))
   A__SEL(s(0), cons(x1, sel(x2, x3))) -> c4(A__SEL(0, a__sel(mark(x2), mark(x3))), MARK(sel(x2, x3)))
   A__SEL(s(x0), cons(x1, sel(x2, x3))) -> c4(MARK(sel(x2, x3)))
   A__SEL(s(cons(z0, z1)), cons(x1, sel(x2, x3))) -> c4(MARK(sel(x2, x3)))
   A__SEL(s(x0), cons(x1, cons(from(z0), x3))) -> c4(A__SEL(mark(x0), cons(a__from(mark(z0)), x3)), MARK(cons(from(z0), x3)))
   A__SEL(s(x0), cons(x1, cons(sel(z0, z1), x3))) -> c4(A__SEL(mark(x0), cons(a__sel(mark(z0), mark(z1)), x3)), MARK(cons(sel(z0, z1), x3)))
   A__SEL(s(x0), cons(x1, cons(cons(z0, z1), x3))) -> c4(A__SEL(mark(x0), cons(cons(mark(z0), z1), x3)), MARK(cons(cons(z0, z1), x3)))
   A__SEL(s(x0), cons(x1, cons(s(z0), x3))) -> c4(A__SEL(mark(x0), cons(s(mark(z0)), x3)), MARK(cons(s(z0), x3)))
   A__SEL(s(x0), cons(x1, cons(0, x3))) -> c4(A__SEL(mark(x0), cons(0, x3)), MARK(cons(0, x3)))
   A__SEL(s(from(z0)), cons(x1, cons(x2, x3))) -> c4(A__SEL(a__from(mark(z0)), cons(mark(x2), x3)), MARK(cons(x2, x3)))
   A__SEL(s(sel(z0, z1)), cons(x1, cons(x2, x3))) -> c4(A__SEL(a__sel(mark(z0), mark(z1)), cons(mark(x2), x3)), MARK(cons(x2, x3)))
   A__SEL(s(s(z0)), cons(x1, cons(x2, x3))) -> c4(A__SEL(s(mark(z0)), cons(mark(x2), x3)), MARK(cons(x2, x3)))
   A__SEL(s(0), cons(x1, cons(x2, x3))) -> c4(A__SEL(0, cons(mark(x2), x3)), MARK(cons(x2, x3)))
   A__SEL(s(x0), cons(x1, cons(x2, x3))) -> c4(MARK(cons(x2, x3)))
   A__SEL(s(cons(z0, z1)), cons(x1, cons(x2, x3))) -> c4(MARK(cons(x2, x3)))
   A__SEL(s(from(from(z0))), cons(x1, x2)) -> c4(A__SEL(a__from(a__from(mark(z0))), mark(x2)), MARK(x2))
   A__SEL(s(from(sel(z0, z1))), cons(x1, x2)) -> c4(A__SEL(a__from(a__sel(mark(z0), mark(z1))), mark(x2)), MARK(x2))
   A__SEL(s(from(cons(z0, z1))), cons(x1, x2)) -> c4(A__SEL(a__from(cons(mark(z0), z1)), mark(x2)), MARK(x2))
   A__SEL(s(from(s(z0))), cons(x1, x2)) -> c4(A__SEL(a__from(s(mark(z0))), mark(x2)), MARK(x2))
   A__SEL(s(from(0)), cons(x1, x2)) -> c4(A__SEL(a__from(0), mark(x2)), MARK(x2))
   A__SEL(s(from(x0)), cons(x1, s(z0))) -> c4(MARK(s(z0)))
   A__SEL(s(from(x0)), cons(x1, x2)) -> c4(MARK(x2))
   A__SEL(s(sel(x0, from(z0))), cons(x2, x3)) -> c4(A__SEL(a__sel(mark(x0), a__from(mark(z0))), mark(x3)), MARK(x3))
   A__SEL(s(sel(x0, sel(z0, z1))), cons(x2, x3)) -> c4(A__SEL(a__sel(mark(x0), a__sel(mark(z0), mark(z1))), mark(x3)), MARK(x3))
   A__SEL(s(sel(x0, cons(z0, z1))), cons(x2, x3)) -> c4(A__SEL(a__sel(mark(x0), cons(mark(z0), z1)), mark(x3)), MARK(x3))
   A__SEL(s(sel(x0, s(z0))), cons(x2, x3)) -> c4(A__SEL(a__sel(mark(x0), s(mark(z0))), mark(x3)), MARK(x3))
   A__SEL(s(sel(x0, 0)), cons(x2, x3)) -> c4(A__SEL(a__sel(mark(x0), 0), mark(x3)), MARK(x3))
   A__SEL(s(sel(from(z0), x1)), cons(x2, x3)) -> c4(A__SEL(a__sel(a__from(mark(z0)), mark(x1)), mark(x3)), MARK(x3))
   A__SEL(s(sel(sel(z0, z1), x1)), cons(x2, x3)) -> c4(A__SEL(a__sel(a__sel(mark(z0), mark(z1)), mark(x1)), mark(x3)), MARK(x3))
   A__SEL(s(sel(cons(z0, z1), x1)), cons(x2, x3)) -> c4(A__SEL(a__sel(cons(mark(z0), z1), mark(x1)), mark(x3)), MARK(x3))
   A__SEL(s(sel(s(z0), x1)), cons(x2, x3)) -> c4(A__SEL(a__sel(s(mark(z0)), mark(x1)), mark(x3)), MARK(x3))
   A__SEL(s(sel(0, x1)), cons(x2, x3)) -> c4(A__SEL(a__sel(0, mark(x1)), mark(x3)), MARK(x3))
   A__SEL(s(sel(x0, x1)), cons(x2, s(z0))) -> c4(MARK(s(z0)))
   A__SEL(s(sel(x0, x1)), cons(x2, x3)) -> c4(MARK(x3))
   A__SEL(s(s(from(z0))), cons(x1, x2)) -> c4(A__SEL(s(a__from(mark(z0))), mark(x2)), MARK(x2))
   A__SEL(s(s(sel(z0, z1))), cons(x1, x2)) -> c4(A__SEL(s(a__sel(mark(z0), mark(z1))), mark(x2)), MARK(x2))
   A__SEL(s(s(cons(z0, z1))), cons(x1, x2)) -> c4(A__SEL(s(cons(mark(z0), z1)), mark(x2)), MARK(x2))
   A__SEL(s(s(s(z0))), cons(x1, x2)) -> c4(A__SEL(s(s(mark(z0))), mark(x2)), MARK(x2))
   A__SEL(s(s(0)), cons(x1, x2)) -> c4(A__SEL(s(0), mark(x2)), MARK(x2))
   A__SEL(s(s(x0)), cons(x1, s(z0))) -> c4(MARK(s(z0)))
   A__SEL(s(0), cons(x0, s(z0))) -> c4(MARK(s(z0)))
   MARK(sel(x0, from(x1))) -> c7(A__SEL(mark(x0), cons(mark(mark(x1)), from(s(mark(x1))))), MARK(x0))
   MARK(sel(x0, from(from(z0)))) -> c7(A__SEL(mark(x0), a__from(a__from(mark(z0)))), MARK(x0))
   MARK(sel(x0, from(sel(z0, z1)))) -> c7(A__SEL(mark(x0), a__from(a__sel(mark(z0), mark(z1)))), MARK(x0))
   MARK(sel(x0, from(cons(z0, z1)))) -> c7(A__SEL(mark(x0), a__from(cons(mark(z0), z1))), MARK(x0))
   MARK(sel(x0, from(s(z0)))) -> c7(A__SEL(mark(x0), a__from(s(mark(z0)))), MARK(x0))
   MARK(sel(x0, from(0))) -> c7(A__SEL(mark(x0), a__from(0)), MARK(x0))
   MARK(sel(from(z0), from(x1))) -> c7(A__SEL(a__from(mark(z0)), a__from(mark(x1))), MARK(from(z0)))
   MARK(sel(sel(z0, z1), from(x1))) -> c7(A__SEL(a__sel(mark(z0), mark(z1)), a__from(mark(x1))), MARK(sel(z0, z1)))
   MARK(sel(s(z0), from(x1))) -> c7(A__SEL(s(mark(z0)), a__from(mark(x1))), MARK(s(z0)))
   MARK(sel(x0, from(x1))) -> c7(MARK(x0))
   MARK(sel(cons(z0, z1), from(x1))) -> c7(MARK(cons(z0, z1)))
   MARK(sel(0, from(x1))) -> c7(A__SEL(0, a__from(mark(x1))))
   MARK(sel(x0, sel(x1, from(z0)))) -> c7(A__SEL(mark(x0), a__sel(mark(x1), a__from(mark(z0)))), MARK(x0))
   MARK(sel(x0, sel(x1, sel(z0, z1)))) -> c7(A__SEL(mark(x0), a__sel(mark(x1), a__sel(mark(z0), mark(z1)))), MARK(x0))
   MARK(sel(x0, sel(x1, cons(z0, z1)))) -> c7(A__SEL(mark(x0), a__sel(mark(x1), cons(mark(z0), z1))), MARK(x0))
   MARK(sel(x0, sel(x1, s(z0)))) -> c7(A__SEL(mark(x0), a__sel(mark(x1), s(mark(z0)))), MARK(x0))
   MARK(sel(x0, sel(x1, 0))) -> c7(A__SEL(mark(x0), a__sel(mark(x1), 0)), MARK(x0))
   MARK(sel(x0, sel(from(z0), x2))) -> c7(A__SEL(mark(x0), a__sel(a__from(mark(z0)), mark(x2))), MARK(x0))
   MARK(sel(x0, sel(sel(z0, z1), x2))) -> c7(A__SEL(mark(x0), a__sel(a__sel(mark(z0), mark(z1)), mark(x2))), MARK(x0))
   MARK(sel(x0, sel(cons(z0, z1), x2))) -> c7(A__SEL(mark(x0), a__sel(cons(mark(z0), z1), mark(x2))), MARK(x0))
   MARK(sel(x0, sel(s(z0), x2))) -> c7(A__SEL(mark(x0), a__sel(s(mark(z0)), mark(x2))), MARK(x0))
   MARK(sel(x0, sel(0, x2))) -> c7(A__SEL(mark(x0), a__sel(0, mark(x2))), MARK(x0))
   MARK(sel(from(z0), sel(x1, x2))) -> c7(A__SEL(a__from(mark(z0)), a__sel(mark(x1), mark(x2))), MARK(from(z0)))
   MARK(sel(sel(z0, z1), sel(x1, x2))) -> c7(A__SEL(a__sel(mark(z0), mark(z1)), a__sel(mark(x1), mark(x2))), MARK(sel(z0, z1)))
   MARK(sel(s(z0), sel(x1, x2))) -> c7(A__SEL(s(mark(z0)), a__sel(mark(x1), mark(x2))), MARK(s(z0)))
   MARK(sel(x0, sel(x1, x2))) -> c7(MARK(x0))
   MARK(sel(cons(z0, z1), sel(x1, x2))) -> c7(MARK(cons(z0, z1)))
   MARK(sel(0, sel(x1, x2))) -> c7(A__SEL(0, a__sel(mark(x1), mark(x2))))
   MARK(sel(x0, cons(from(z0), x2))) -> c7(A__SEL(mark(x0), cons(a__from(mark(z0)), x2)), MARK(x0))
   MARK(sel(x0, cons(sel(z0, z1), x2))) -> c7(A__SEL(mark(x0), cons(a__sel(mark(z0), mark(z1)), x2)), MARK(x0))
   MARK(sel(x0, cons(cons(z0, z1), x2))) -> c7(A__SEL(mark(x0), cons(cons(mark(z0), z1), x2)), MARK(x0))
   MARK(sel(x0, cons(s(z0), x2))) -> c7(A__SEL(mark(x0), cons(s(mark(z0)), x2)), MARK(x0))
   MARK(sel(x0, cons(0, x2))) -> c7(A__SEL(mark(x0), cons(0, x2)), MARK(x0))
   MARK(sel(from(z0), cons(x1, x2))) -> c7(A__SEL(a__from(mark(z0)), cons(mark(x1), x2)), MARK(from(z0)))
   MARK(sel(sel(z0, z1), cons(x1, x2))) -> c7(A__SEL(a__sel(mark(z0), mark(z1)), cons(mark(x1), x2)), MARK(sel(z0, z1)))
   MARK(sel(cons(z0, z1), cons(x1, x2))) -> c7(A__SEL(cons(mark(z0), z1), cons(mark(x1), x2)), MARK(cons(z0, z1)))
   MARK(sel(s(z0), cons(x1, x2))) -> c7(A__SEL(s(mark(z0)), cons(mark(x1), x2)), MARK(s(z0)))
   MARK(sel(0, cons(x1, x2))) -> c7(A__SEL(0, cons(mark(x1), x2)), MARK(0))
S tuples:
   A__FROM(z0) -> c(MARK(z0))
   A__SEL(0, cons(z0, z1)) -> c2(MARK(z0))
   MARK(from(z0)) -> c6(A__FROM(mark(z0)), MARK(z0))
   MARK(cons(z0, z1)) -> c9(MARK(z0))
   MARK(s(z0)) -> c10(MARK(z0))
   A__SEL(s(x0), cons(x1, s(z0))) -> c3(MARK(x0))
   A__SEL(s(x0), cons(x1, 0)) -> c3(MARK(x0))
   A__SEL(s(cons(z0, z1)), cons(x1, x2)) -> c3(MARK(cons(z0, z1)))
   A__SEL(s(x0), cons(x1, s(z0))) -> c4(MARK(s(z0)))
   A__SEL(s(cons(z0, z1)), cons(x1, x2)) -> c4(MARK(x2))
   MARK(sel(from(z0), x1)) -> c7(A__SEL(a__from(mark(z0)), mark(x1)), MARK(from(z0)))
   MARK(sel(sel(z0, z1), x1)) -> c7(A__SEL(a__sel(mark(z0), mark(z1)), mark(x1)), MARK(sel(z0, z1)))
   MARK(sel(s(z0), x1)) -> c7(A__SEL(s(mark(z0)), mark(x1)), MARK(s(z0)))
   MARK(sel(x0, s(z0))) -> c7(MARK(x0))
   MARK(sel(x0, 0)) -> c7(MARK(x0))
   MARK(sel(cons(z0, z1), x1)) -> c7(MARK(cons(z0, z1)))
   MARK(sel(0, x1)) -> c7(A__SEL(0, mark(x1)))
   MARK(sel(x0, from(z0))) -> c8(A__SEL(mark(x0), a__from(mark(z0))), MARK(from(z0)))
   MARK(sel(x0, sel(z0, z1))) -> c8(A__SEL(mark(x0), a__sel(mark(z0), mark(z1))), MARK(sel(z0, z1)))
   MARK(sel(x0, cons(z0, z1))) -> c8(A__SEL(mark(x0), cons(mark(z0), z1)), MARK(cons(z0, z1)))
   MARK(sel(from(z0), x1)) -> c8(A__SEL(a__from(mark(z0)), mark(x1)), MARK(x1))
   MARK(sel(sel(z0, z1), x1)) -> c8(A__SEL(a__sel(mark(z0), mark(z1)), mark(x1)), MARK(x1))
   MARK(sel(s(z0), x1)) -> c8(A__SEL(s(mark(z0)), mark(x1)), MARK(x1))
   MARK(sel(0, x1)) -> c8(A__SEL(0, mark(x1)), MARK(x1))
   MARK(sel(x0, s(z0))) -> c8(MARK(s(z0)))
   MARK(sel(cons(z0, z1), x1)) -> c8(MARK(x1))
   A__SEL(s(x0), cons(x1, from(x2))) -> c3(A__SEL(mark(x0), cons(mark(mark(x2)), from(s(mark(x2))))), MARK(x0))
   A__SEL(s(x0), cons(x1, from(from(z0)))) -> c3(A__SEL(mark(x0), a__from(a__from(mark(z0)))), MARK(x0))
   A__SEL(s(x0), cons(x1, from(sel(z0, z1)))) -> c3(A__SEL(mark(x0), a__from(a__sel(mark(z0), mark(z1)))), MARK(x0))
   A__SEL(s(x0), cons(x1, from(cons(z0, z1)))) -> c3(A__SEL(mark(x0), a__from(cons(mark(z0), z1))), MARK(x0))
   A__SEL(s(x0), cons(x1, from(s(z0)))) -> c3(A__SEL(mark(x0), a__from(s(mark(z0)))), MARK(x0))
   A__SEL(s(x0), cons(x1, from(0))) -> c3(A__SEL(mark(x0), a__from(0)), MARK(x0))
   A__SEL(s(from(z0)), cons(x1, from(x2))) -> c3(A__SEL(a__from(mark(z0)), a__from(mark(x2))), MARK(from(z0)))
   A__SEL(s(sel(z0, z1)), cons(x1, from(x2))) -> c3(A__SEL(a__sel(mark(z0), mark(z1)), a__from(mark(x2))), MARK(sel(z0, z1)))
   A__SEL(s(s(z0)), cons(x1, from(x2))) -> c3(A__SEL(s(mark(z0)), a__from(mark(x2))), MARK(s(z0)))
   A__SEL(s(x0), cons(x1, from(x2))) -> c3(MARK(x0))
   A__SEL(s(cons(z0, z1)), cons(x1, from(x2))) -> c3(MARK(cons(z0, z1)))
   A__SEL(s(0), cons(x1, from(x2))) -> c3(A__SEL(0, a__from(mark(x2))))
   A__SEL(s(x0), cons(x1, sel(x2, from(z0)))) -> c3(A__SEL(mark(x0), a__sel(mark(x2), a__from(mark(z0)))), MARK(x0))
   A__SEL(s(x0), cons(x1, sel(x2, sel(z0, z1)))) -> c3(A__SEL(mark(x0), a__sel(mark(x2), a__sel(mark(z0), mark(z1)))), MARK(x0))
   A__SEL(s(x0), cons(x1, sel(x2, cons(z0, z1)))) -> c3(A__SEL(mark(x0), a__sel(mark(x2), cons(mark(z0), z1))), MARK(x0))
   A__SEL(s(x0), cons(x1, sel(x2, s(z0)))) -> c3(A__SEL(mark(x0), a__sel(mark(x2), s(mark(z0)))), MARK(x0))
   A__SEL(s(x0), cons(x1, sel(x2, 0))) -> c3(A__SEL(mark(x0), a__sel(mark(x2), 0)), MARK(x0))
   A__SEL(s(x0), cons(x1, sel(from(z0), x3))) -> c3(A__SEL(mark(x0), a__sel(a__from(mark(z0)), mark(x3))), MARK(x0))
   A__SEL(s(x0), cons(x1, sel(sel(z0, z1), x3))) -> c3(A__SEL(mark(x0), a__sel(a__sel(mark(z0), mark(z1)), mark(x3))), MARK(x0))
   A__SEL(s(x0), cons(x1, sel(cons(z0, z1), x3))) -> c3(A__SEL(mark(x0), a__sel(cons(mark(z0), z1), mark(x3))), MARK(x0))
   A__SEL(s(x0), cons(x1, sel(s(z0), x3))) -> c3(A__SEL(mark(x0), a__sel(s(mark(z0)), mark(x3))), MARK(x0))
   A__SEL(s(x0), cons(x1, sel(0, x3))) -> c3(A__SEL(mark(x0), a__sel(0, mark(x3))), MARK(x0))
   A__SEL(s(from(z0)), cons(x1, sel(x2, x3))) -> c3(A__SEL(a__from(mark(z0)), a__sel(mark(x2), mark(x3))), MARK(from(z0)))
   A__SEL(s(sel(z0, z1)), cons(x1, sel(x2, x3))) -> c3(A__SEL(a__sel(mark(z0), mark(z1)), a__sel(mark(x2), mark(x3))), MARK(sel(z0, z1)))
   A__SEL(s(s(z0)), cons(x1, sel(x2, x3))) -> c3(A__SEL(s(mark(z0)), a__sel(mark(x2), mark(x3))), MARK(s(z0)))
   A__SEL(s(x0), cons(x1, sel(x2, x3))) -> c3(MARK(x0))
   A__SEL(s(cons(z0, z1)), cons(x1, sel(x2, x3))) -> c3(MARK(cons(z0, z1)))
   A__SEL(s(0), cons(x1, sel(x2, x3))) -> c3(A__SEL(0, a__sel(mark(x2), mark(x3))))
   A__SEL(s(x0), cons(x1, cons(from(z0), x3))) -> c3(A__SEL(mark(x0), cons(a__from(mark(z0)), x3)), MARK(x0))
   A__SEL(s(x0), cons(x1, cons(sel(z0, z1), x3))) -> c3(A__SEL(mark(x0), cons(a__sel(mark(z0), mark(z1)), x3)), MARK(x0))
   A__SEL(s(x0), cons(x1, cons(cons(z0, z1), x3))) -> c3(A__SEL(mark(x0), cons(cons(mark(z0), z1), x3)), MARK(x0))
   A__SEL(s(x0), cons(x1, cons(s(z0), x3))) -> c3(A__SEL(mark(x0), cons(s(mark(z0)), x3)), MARK(x0))
   A__SEL(s(x0), cons(x1, cons(0, x3))) -> c3(A__SEL(mark(x0), cons(0, x3)), MARK(x0))
   A__SEL(s(from(z0)), cons(x1, cons(x2, x3))) -> c3(A__SEL(a__from(mark(z0)), cons(mark(x2), x3)), MARK(from(z0)))
   A__SEL(s(sel(z0, z1)), cons(x1, cons(x2, x3))) -> c3(A__SEL(a__sel(mark(z0), mark(z1)), cons(mark(x2), x3)), MARK(sel(z0, z1)))
   A__SEL(s(s(z0)), cons(x1, cons(x2, x3))) -> c3(A__SEL(s(mark(z0)), cons(mark(x2), x3)), MARK(s(z0)))
   A__SEL(s(cons(z0, z1)), cons(x1, cons(x2, x3))) -> c3(MARK(cons(z0, z1)))
   A__SEL(s(0), cons(x1, cons(x2, x3))) -> c3(A__SEL(0, cons(mark(x2), x3)))
   A__SEL(s(from(from(z0))), cons(x1, x2)) -> c3(A__SEL(a__from(a__from(mark(z0))), mark(x2)), MARK(from(from(z0))))
   A__SEL(s(from(sel(z0, z1))), cons(x1, x2)) -> c3(A__SEL(a__from(a__sel(mark(z0), mark(z1))), mark(x2)), MARK(from(sel(z0, z1))))
   A__SEL(s(from(cons(z0, z1))), cons(x1, x2)) -> c3(A__SEL(a__from(cons(mark(z0), z1)), mark(x2)), MARK(from(cons(z0, z1))))
   A__SEL(s(from(s(z0))), cons(x1, x2)) -> c3(A__SEL(a__from(s(mark(z0))), mark(x2)), MARK(from(s(z0))))
   A__SEL(s(from(0)), cons(x1, x2)) -> c3(A__SEL(a__from(0), mark(x2)), MARK(from(0)))
   A__SEL(s(from(x0)), cons(x1, x2)) -> c3(MARK(from(x0)))
   A__SEL(s(from(x0)), cons(x1, s(z0))) -> c3(MARK(from(x0)))
   A__SEL(s(from(x0)), cons(x1, 0)) -> c3(MARK(from(x0)))
   A__SEL(s(sel(x0, from(z0))), cons(x2, x3)) -> c3(A__SEL(a__sel(mark(x0), a__from(mark(z0))), mark(x3)), MARK(sel(x0, from(z0))))
   A__SEL(s(sel(x0, sel(z0, z1))), cons(x2, x3)) -> c3(A__SEL(a__sel(mark(x0), a__sel(mark(z0), mark(z1))), mark(x3)), MARK(sel(x0, sel(z0, z1))))
   A__SEL(s(sel(x0, cons(z0, z1))), cons(x2, x3)) -> c3(A__SEL(a__sel(mark(x0), cons(mark(z0), z1)), mark(x3)), MARK(sel(x0, cons(z0, z1))))
   A__SEL(s(sel(x0, s(z0))), cons(x2, x3)) -> c3(A__SEL(a__sel(mark(x0), s(mark(z0))), mark(x3)), MARK(sel(x0, s(z0))))
   A__SEL(s(sel(x0, 0)), cons(x2, x3)) -> c3(A__SEL(a__sel(mark(x0), 0), mark(x3)), MARK(sel(x0, 0)))
   A__SEL(s(sel(from(z0), x1)), cons(x2, x3)) -> c3(A__SEL(a__sel(a__from(mark(z0)), mark(x1)), mark(x3)), MARK(sel(from(z0), x1)))
   A__SEL(s(sel(sel(z0, z1), x1)), cons(x2, x3)) -> c3(A__SEL(a__sel(a__sel(mark(z0), mark(z1)), mark(x1)), mark(x3)), MARK(sel(sel(z0, z1), x1)))
   A__SEL(s(sel(cons(z0, z1), x1)), cons(x2, x3)) -> c3(A__SEL(a__sel(cons(mark(z0), z1), mark(x1)), mark(x3)), MARK(sel(cons(z0, z1), x1)))
   A__SEL(s(sel(s(z0), x1)), cons(x2, x3)) -> c3(A__SEL(a__sel(s(mark(z0)), mark(x1)), mark(x3)), MARK(sel(s(z0), x1)))
   A__SEL(s(sel(0, x1)), cons(x2, x3)) -> c3(A__SEL(a__sel(0, mark(x1)), mark(x3)), MARK(sel(0, x1)))
   A__SEL(s(sel(x0, x1)), cons(x2, s(z0))) -> c3(MARK(sel(x0, x1)))
   A__SEL(s(sel(x0, x1)), cons(x2, 0)) -> c3(MARK(sel(x0, x1)))
   A__SEL(s(sel(x0, x1)), cons(x2, x3)) -> c3(MARK(sel(x0, x1)))
   A__SEL(s(s(from(z0))), cons(x1, x2)) -> c3(A__SEL(s(a__from(mark(z0))), mark(x2)), MARK(s(from(z0))))
   A__SEL(s(s(sel(z0, z1))), cons(x1, x2)) -> c3(A__SEL(s(a__sel(mark(z0), mark(z1))), mark(x2)), MARK(s(sel(z0, z1))))
   A__SEL(s(s(cons(z0, z1))), cons(x1, x2)) -> c3(A__SEL(s(cons(mark(z0), z1)), mark(x2)), MARK(s(cons(z0, z1))))
   A__SEL(s(s(s(z0))), cons(x1, x2)) -> c3(A__SEL(s(s(mark(z0))), mark(x2)), MARK(s(s(z0))))
   A__SEL(s(s(0)), cons(x1, x2)) -> c3(A__SEL(s(0), mark(x2)), MARK(s(0)))
   A__SEL(s(s(x0)), cons(x1, x2)) -> c3(MARK(s(x0)))
   A__SEL(s(s(x0)), cons(x1, s(z0))) -> c3(MARK(s(x0)))
   A__SEL(s(s(x0)), cons(x1, 0)) -> c3(MARK(s(x0)))
   A__SEL(s(x0), cons(x1, from(x2))) -> c4(A__SEL(mark(x0), cons(mark(mark(x2)), from(s(mark(x2))))), MARK(from(x2)))
   A__SEL(s(x0), cons(x1, from(from(z0)))) -> c4(A__SEL(mark(x0), a__from(a__from(mark(z0)))), MARK(from(from(z0))))
   A__SEL(s(x0), cons(x1, from(sel(z0, z1)))) -> c4(A__SEL(mark(x0), a__from(a__sel(mark(z0), mark(z1)))), MARK(from(sel(z0, z1))))
   A__SEL(s(x0), cons(x1, from(cons(z0, z1)))) -> c4(A__SEL(mark(x0), a__from(cons(mark(z0), z1))), MARK(from(cons(z0, z1))))
   A__SEL(s(x0), cons(x1, from(s(z0)))) -> c4(A__SEL(mark(x0), a__from(s(mark(z0)))), MARK(from(s(z0))))
   A__SEL(s(x0), cons(x1, from(0))) -> c4(A__SEL(mark(x0), a__from(0)), MARK(from(0)))
   A__SEL(s(from(z0)), cons(x1, from(x2))) -> c4(A__SEL(a__from(mark(z0)), a__from(mark(x2))), MARK(from(x2)))
   A__SEL(s(sel(z0, z1)), cons(x1, from(x2))) -> c4(A__SEL(a__sel(mark(z0), mark(z1)), a__from(mark(x2))), MARK(from(x2)))
   A__SEL(s(s(z0)), cons(x1, from(x2))) -> c4(A__SEL(s(mark(z0)), a__from(mark(x2))), MARK(from(x2)))
   A__SEL(s(0), cons(x1, from(x2))) -> c4(A__SEL(0, a__from(mark(x2))), MARK(from(x2)))
   A__SEL(s(x0), cons(x1, from(x2))) -> c4(MARK(from(x2)))
   A__SEL(s(cons(z0, z1)), cons(x1, from(x2))) -> c4(MARK(from(x2)))
   A__SEL(s(x0), cons(x1, sel(x2, from(z0)))) -> c4(A__SEL(mark(x0), a__sel(mark(x2), a__from(mark(z0)))), MARK(sel(x2, from(z0))))
   A__SEL(s(x0), cons(x1, sel(x2, sel(z0, z1)))) -> c4(A__SEL(mark(x0), a__sel(mark(x2), a__sel(mark(z0), mark(z1)))), MARK(sel(x2, sel(z0, z1))))
   A__SEL(s(x0), cons(x1, sel(x2, cons(z0, z1)))) -> c4(A__SEL(mark(x0), a__sel(mark(x2), cons(mark(z0), z1))), MARK(sel(x2, cons(z0, z1))))
   A__SEL(s(x0), cons(x1, sel(x2, s(z0)))) -> c4(A__SEL(mark(x0), a__sel(mark(x2), s(mark(z0)))), MARK(sel(x2, s(z0))))
   A__SEL(s(x0), cons(x1, sel(x2, 0))) -> c4(A__SEL(mark(x0), a__sel(mark(x2), 0)), MARK(sel(x2, 0)))
   A__SEL(s(x0), cons(x1, sel(from(z0), x3))) -> c4(A__SEL(mark(x0), a__sel(a__from(mark(z0)), mark(x3))), MARK(sel(from(z0), x3)))
   A__SEL(s(x0), cons(x1, sel(sel(z0, z1), x3))) -> c4(A__SEL(mark(x0), a__sel(a__sel(mark(z0), mark(z1)), mark(x3))), MARK(sel(sel(z0, z1), x3)))
   A__SEL(s(x0), cons(x1, sel(cons(z0, z1), x3))) -> c4(A__SEL(mark(x0), a__sel(cons(mark(z0), z1), mark(x3))), MARK(sel(cons(z0, z1), x3)))
   A__SEL(s(x0), cons(x1, sel(s(z0), x3))) -> c4(A__SEL(mark(x0), a__sel(s(mark(z0)), mark(x3))), MARK(sel(s(z0), x3)))
   A__SEL(s(x0), cons(x1, sel(0, x3))) -> c4(A__SEL(mark(x0), a__sel(0, mark(x3))), MARK(sel(0, x3)))
   A__SEL(s(from(z0)), cons(x1, sel(x2, x3))) -> c4(A__SEL(a__from(mark(z0)), a__sel(mark(x2), mark(x3))), MARK(sel(x2, x3)))
   A__SEL(s(sel(z0, z1)), cons(x1, sel(x2, x3))) -> c4(A__SEL(a__sel(mark(z0), mark(z1)), a__sel(mark(x2), mark(x3))), MARK(sel(x2, x3)))
   A__SEL(s(s(z0)), cons(x1, sel(x2, x3))) -> c4(A__SEL(s(mark(z0)), a__sel(mark(x2), mark(x3))), MARK(sel(x2, x3)))
   A__SEL(s(0), cons(x1, sel(x2, x3))) -> c4(A__SEL(0, a__sel(mark(x2), mark(x3))), MARK(sel(x2, x3)))
   A__SEL(s(x0), cons(x1, sel(x2, x3))) -> c4(MARK(sel(x2, x3)))
   A__SEL(s(cons(z0, z1)), cons(x1, sel(x2, x3))) -> c4(MARK(sel(x2, x3)))
   A__SEL(s(x0), cons(x1, cons(from(z0), x3))) -> c4(A__SEL(mark(x0), cons(a__from(mark(z0)), x3)), MARK(cons(from(z0), x3)))
   A__SEL(s(x0), cons(x1, cons(sel(z0, z1), x3))) -> c4(A__SEL(mark(x0), cons(a__sel(mark(z0), mark(z1)), x3)), MARK(cons(sel(z0, z1), x3)))
   A__SEL(s(x0), cons(x1, cons(cons(z0, z1), x3))) -> c4(A__SEL(mark(x0), cons(cons(mark(z0), z1), x3)), MARK(cons(cons(z0, z1), x3)))
   A__SEL(s(x0), cons(x1, cons(s(z0), x3))) -> c4(A__SEL(mark(x0), cons(s(mark(z0)), x3)), MARK(cons(s(z0), x3)))
   A__SEL(s(x0), cons(x1, cons(0, x3))) -> c4(A__SEL(mark(x0), cons(0, x3)), MARK(cons(0, x3)))
   A__SEL(s(from(z0)), cons(x1, cons(x2, x3))) -> c4(A__SEL(a__from(mark(z0)), cons(mark(x2), x3)), MARK(cons(x2, x3)))
   A__SEL(s(sel(z0, z1)), cons(x1, cons(x2, x3))) -> c4(A__SEL(a__sel(mark(z0), mark(z1)), cons(mark(x2), x3)), MARK(cons(x2, x3)))
   A__SEL(s(s(z0)), cons(x1, cons(x2, x3))) -> c4(A__SEL(s(mark(z0)), cons(mark(x2), x3)), MARK(cons(x2, x3)))
   A__SEL(s(0), cons(x1, cons(x2, x3))) -> c4(A__SEL(0, cons(mark(x2), x3)), MARK(cons(x2, x3)))
   A__SEL(s(x0), cons(x1, cons(x2, x3))) -> c4(MARK(cons(x2, x3)))
   A__SEL(s(cons(z0, z1)), cons(x1, cons(x2, x3))) -> c4(MARK(cons(x2, x3)))
   A__SEL(s(from(from(z0))), cons(x1, x2)) -> c4(A__SEL(a__from(a__from(mark(z0))), mark(x2)), MARK(x2))
   A__SEL(s(from(sel(z0, z1))), cons(x1, x2)) -> c4(A__SEL(a__from(a__sel(mark(z0), mark(z1))), mark(x2)), MARK(x2))
   A__SEL(s(from(cons(z0, z1))), cons(x1, x2)) -> c4(A__SEL(a__from(cons(mark(z0), z1)), mark(x2)), MARK(x2))
   A__SEL(s(from(s(z0))), cons(x1, x2)) -> c4(A__SEL(a__from(s(mark(z0))), mark(x2)), MARK(x2))
   A__SEL(s(from(0)), cons(x1, x2)) -> c4(A__SEL(a__from(0), mark(x2)), MARK(x2))
   A__SEL(s(from(x0)), cons(x1, s(z0))) -> c4(MARK(s(z0)))
   A__SEL(s(from(x0)), cons(x1, x2)) -> c4(MARK(x2))
   A__SEL(s(sel(x0, from(z0))), cons(x2, x3)) -> c4(A__SEL(a__sel(mark(x0), a__from(mark(z0))), mark(x3)), MARK(x3))
   A__SEL(s(sel(x0, sel(z0, z1))), cons(x2, x3)) -> c4(A__SEL(a__sel(mark(x0), a__sel(mark(z0), mark(z1))), mark(x3)), MARK(x3))
   A__SEL(s(sel(x0, cons(z0, z1))), cons(x2, x3)) -> c4(A__SEL(a__sel(mark(x0), cons(mark(z0), z1)), mark(x3)), MARK(x3))
   A__SEL(s(sel(x0, s(z0))), cons(x2, x3)) -> c4(A__SEL(a__sel(mark(x0), s(mark(z0))), mark(x3)), MARK(x3))
   A__SEL(s(sel(x0, 0)), cons(x2, x3)) -> c4(A__SEL(a__sel(mark(x0), 0), mark(x3)), MARK(x3))
   A__SEL(s(sel(from(z0), x1)), cons(x2, x3)) -> c4(A__SEL(a__sel(a__from(mark(z0)), mark(x1)), mark(x3)), MARK(x3))
   A__SEL(s(sel(sel(z0, z1), x1)), cons(x2, x3)) -> c4(A__SEL(a__sel(a__sel(mark(z0), mark(z1)), mark(x1)), mark(x3)), MARK(x3))
   A__SEL(s(sel(cons(z0, z1), x1)), cons(x2, x3)) -> c4(A__SEL(a__sel(cons(mark(z0), z1), mark(x1)), mark(x3)), MARK(x3))
   A__SEL(s(sel(s(z0), x1)), cons(x2, x3)) -> c4(A__SEL(a__sel(s(mark(z0)), mark(x1)), mark(x3)), MARK(x3))
   A__SEL(s(sel(0, x1)), cons(x2, x3)) -> c4(A__SEL(a__sel(0, mark(x1)), mark(x3)), MARK(x3))
   A__SEL(s(sel(x0, x1)), cons(x2, s(z0))) -> c4(MARK(s(z0)))
   A__SEL(s(sel(x0, x1)), cons(x2, x3)) -> c4(MARK(x3))
   A__SEL(s(s(from(z0))), cons(x1, x2)) -> c4(A__SEL(s(a__from(mark(z0))), mark(x2)), MARK(x2))
   A__SEL(s(s(sel(z0, z1))), cons(x1, x2)) -> c4(A__SEL(s(a__sel(mark(z0), mark(z1))), mark(x2)), MARK(x2))
   A__SEL(s(s(cons(z0, z1))), cons(x1, x2)) -> c4(A__SEL(s(cons(mark(z0), z1)), mark(x2)), MARK(x2))
   A__SEL(s(s(s(z0))), cons(x1, x2)) -> c4(A__SEL(s(s(mark(z0))), mark(x2)), MARK(x2))
   A__SEL(s(s(0)), cons(x1, x2)) -> c4(A__SEL(s(0), mark(x2)), MARK(x2))
   A__SEL(s(s(x0)), cons(x1, s(z0))) -> c4(MARK(s(z0)))
   A__SEL(s(0), cons(x0, s(z0))) -> c4(MARK(s(z0)))
   MARK(sel(x0, from(x1))) -> c7(A__SEL(mark(x0), cons(mark(mark(x1)), from(s(mark(x1))))), MARK(x0))
   MARK(sel(x0, from(from(z0)))) -> c7(A__SEL(mark(x0), a__from(a__from(mark(z0)))), MARK(x0))
   MARK(sel(x0, from(sel(z0, z1)))) -> c7(A__SEL(mark(x0), a__from(a__sel(mark(z0), mark(z1)))), MARK(x0))
   MARK(sel(x0, from(cons(z0, z1)))) -> c7(A__SEL(mark(x0), a__from(cons(mark(z0), z1))), MARK(x0))
   MARK(sel(x0, from(s(z0)))) -> c7(A__SEL(mark(x0), a__from(s(mark(z0)))), MARK(x0))
   MARK(sel(x0, from(0))) -> c7(A__SEL(mark(x0), a__from(0)), MARK(x0))
   MARK(sel(from(z0), from(x1))) -> c7(A__SEL(a__from(mark(z0)), a__from(mark(x1))), MARK(from(z0)))
   MARK(sel(sel(z0, z1), from(x1))) -> c7(A__SEL(a__sel(mark(z0), mark(z1)), a__from(mark(x1))), MARK(sel(z0, z1)))
   MARK(sel(s(z0), from(x1))) -> c7(A__SEL(s(mark(z0)), a__from(mark(x1))), MARK(s(z0)))
   MARK(sel(x0, from(x1))) -> c7(MARK(x0))
   MARK(sel(cons(z0, z1), from(x1))) -> c7(MARK(cons(z0, z1)))
   MARK(sel(0, from(x1))) -> c7(A__SEL(0, a__from(mark(x1))))
   MARK(sel(x0, sel(x1, from(z0)))) -> c7(A__SEL(mark(x0), a__sel(mark(x1), a__from(mark(z0)))), MARK(x0))
   MARK(sel(x0, sel(x1, sel(z0, z1)))) -> c7(A__SEL(mark(x0), a__sel(mark(x1), a__sel(mark(z0), mark(z1)))), MARK(x0))
   MARK(sel(x0, sel(x1, cons(z0, z1)))) -> c7(A__SEL(mark(x0), a__sel(mark(x1), cons(mark(z0), z1))), MARK(x0))
   MARK(sel(x0, sel(x1, s(z0)))) -> c7(A__SEL(mark(x0), a__sel(mark(x1), s(mark(z0)))), MARK(x0))
   MARK(sel(x0, sel(x1, 0))) -> c7(A__SEL(mark(x0), a__sel(mark(x1), 0)), MARK(x0))
   MARK(sel(x0, sel(from(z0), x2))) -> c7(A__SEL(mark(x0), a__sel(a__from(mark(z0)), mark(x2))), MARK(x0))
   MARK(sel(x0, sel(sel(z0, z1), x2))) -> c7(A__SEL(mark(x0), a__sel(a__sel(mark(z0), mark(z1)), mark(x2))), MARK(x0))
   MARK(sel(x0, sel(cons(z0, z1), x2))) -> c7(A__SEL(mark(x0), a__sel(cons(mark(z0), z1), mark(x2))), MARK(x0))
   MARK(sel(x0, sel(s(z0), x2))) -> c7(A__SEL(mark(x0), a__sel(s(mark(z0)), mark(x2))), MARK(x0))
   MARK(sel(x0, sel(0, x2))) -> c7(A__SEL(mark(x0), a__sel(0, mark(x2))), MARK(x0))
   MARK(sel(from(z0), sel(x1, x2))) -> c7(A__SEL(a__from(mark(z0)), a__sel(mark(x1), mark(x2))), MARK(from(z0)))
   MARK(sel(sel(z0, z1), sel(x1, x2))) -> c7(A__SEL(a__sel(mark(z0), mark(z1)), a__sel(mark(x1), mark(x2))), MARK(sel(z0, z1)))
   MARK(sel(s(z0), sel(x1, x2))) -> c7(A__SEL(s(mark(z0)), a__sel(mark(x1), mark(x2))), MARK(s(z0)))
   MARK(sel(x0, sel(x1, x2))) -> c7(MARK(x0))
   MARK(sel(cons(z0, z1), sel(x1, x2))) -> c7(MARK(cons(z0, z1)))
   MARK(sel(0, sel(x1, x2))) -> c7(A__SEL(0, a__sel(mark(x1), mark(x2))))
   MARK(sel(x0, cons(from(z0), x2))) -> c7(A__SEL(mark(x0), cons(a__from(mark(z0)), x2)), MARK(x0))
   MARK(sel(x0, cons(sel(z0, z1), x2))) -> c7(A__SEL(mark(x0), cons(a__sel(mark(z0), mark(z1)), x2)), MARK(x0))
   MARK(sel(x0, cons(cons(z0, z1), x2))) -> c7(A__SEL(mark(x0), cons(cons(mark(z0), z1), x2)), MARK(x0))
   MARK(sel(x0, cons(s(z0), x2))) -> c7(A__SEL(mark(x0), cons(s(mark(z0)), x2)), MARK(x0))
   MARK(sel(x0, cons(0, x2))) -> c7(A__SEL(mark(x0), cons(0, x2)), MARK(x0))
   MARK(sel(from(z0), cons(x1, x2))) -> c7(A__SEL(a__from(mark(z0)), cons(mark(x1), x2)), MARK(from(z0)))
   MARK(sel(sel(z0, z1), cons(x1, x2))) -> c7(A__SEL(a__sel(mark(z0), mark(z1)), cons(mark(x1), x2)), MARK(sel(z0, z1)))
   MARK(sel(cons(z0, z1), cons(x1, x2))) -> c7(A__SEL(cons(mark(z0), z1), cons(mark(x1), x2)), MARK(cons(z0, z1)))
   MARK(sel(s(z0), cons(x1, x2))) -> c7(A__SEL(s(mark(z0)), cons(mark(x1), x2)), MARK(s(z0)))
   MARK(sel(0, cons(x1, x2))) -> c7(A__SEL(0, cons(mark(x1), x2)), MARK(0))
K tuples:none
Defined Rule Symbols:   a__from_1, a__sel_2, mark_1

Defined Pair Symbols:   A__FROM_1, A__SEL_2, MARK_1

Compound Symbols:   c_1, c2_1, c6_2, c9_1, c10_1, c3_1, c4_1, c7_2, c7_1, c8_2, c8_1, c3_2, c4_2


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

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

(152)
Obligation:
Complexity Dependency Tuples Problem

Rules:
   a__from(z0) -> cons(mark(z0), from(s(z0)))
   a__from(z0) -> from(z0)
   a__sel(0, cons(z0, z1)) -> mark(z0)
   a__sel(s(z0), cons(z1, z2)) -> a__sel(mark(z0), mark(z2))
   a__sel(z0, z1) -> sel(z0, z1)
   mark(from(z0)) -> a__from(mark(z0))
   mark(sel(z0, z1)) -> a__sel(mark(z0), mark(z1))
   mark(cons(z0, z1)) -> cons(mark(z0), z1)
   mark(s(z0)) -> s(mark(z0))
   mark(0) -> 0
Tuples:
   A__FROM(z0) -> c(MARK(z0))
   A__SEL(0, cons(z0, z1)) -> c2(MARK(z0))
   MARK(from(z0)) -> c6(A__FROM(mark(z0)), MARK(z0))
   MARK(cons(z0, z1)) -> c9(MARK(z0))
   MARK(s(z0)) -> c10(MARK(z0))
   A__SEL(s(x0), cons(x1, s(z0))) -> c3(MARK(x0))
   A__SEL(s(x0), cons(x1, 0)) -> c3(MARK(x0))
   A__SEL(s(cons(z0, z1)), cons(x1, x2)) -> c3(MARK(cons(z0, z1)))
   A__SEL(s(x0), cons(x1, s(z0))) -> c4(MARK(s(z0)))
   A__SEL(s(cons(z0, z1)), cons(x1, x2)) -> c4(MARK(x2))
   MARK(sel(from(z0), x1)) -> c7(A__SEL(a__from(mark(z0)), mark(x1)), MARK(from(z0)))
   MARK(sel(sel(z0, z1), x1)) -> c7(A__SEL(a__sel(mark(z0), mark(z1)), mark(x1)), MARK(sel(z0, z1)))
   MARK(sel(s(z0), x1)) -> c7(A__SEL(s(mark(z0)), mark(x1)), MARK(s(z0)))
   MARK(sel(x0, s(z0))) -> c7(MARK(x0))
   MARK(sel(x0, 0)) -> c7(MARK(x0))
   MARK(sel(cons(z0, z1), x1)) -> c7(MARK(cons(z0, z1)))
   MARK(sel(0, x1)) -> c7(A__SEL(0, mark(x1)))
   MARK(sel(x0, from(z0))) -> c8(A__SEL(mark(x0), a__from(mark(z0))), MARK(from(z0)))
   MARK(sel(x0, sel(z0, z1))) -> c8(A__SEL(mark(x0), a__sel(mark(z0), mark(z1))), MARK(sel(z0, z1)))
   MARK(sel(x0, cons(z0, z1))) -> c8(A__SEL(mark(x0), cons(mark(z0), z1)), MARK(cons(z0, z1)))
   MARK(sel(from(z0), x1)) -> c8(A__SEL(a__from(mark(z0)), mark(x1)), MARK(x1))
   MARK(sel(sel(z0, z1), x1)) -> c8(A__SEL(a__sel(mark(z0), mark(z1)), mark(x1)), MARK(x1))
   MARK(sel(s(z0), x1)) -> c8(A__SEL(s(mark(z0)), mark(x1)), MARK(x1))
   MARK(sel(0, x1)) -> c8(A__SEL(0, mark(x1)), MARK(x1))
   MARK(sel(x0, s(z0))) -> c8(MARK(s(z0)))
   MARK(sel(cons(z0, z1), x1)) -> c8(MARK(x1))
   A__SEL(s(x0), cons(x1, from(x2))) -> c3(A__SEL(mark(x0), cons(mark(mark(x2)), from(s(mark(x2))))), MARK(x0))
   A__SEL(s(x0), cons(x1, from(from(z0)))) -> c3(A__SEL(mark(x0), a__from(a__from(mark(z0)))), MARK(x0))
   A__SEL(s(x0), cons(x1, from(sel(z0, z1)))) -> c3(A__SEL(mark(x0), a__from(a__sel(mark(z0), mark(z1)))), MARK(x0))
   A__SEL(s(x0), cons(x1, from(cons(z0, z1)))) -> c3(A__SEL(mark(x0), a__from(cons(mark(z0), z1))), MARK(x0))
   A__SEL(s(x0), cons(x1, from(s(z0)))) -> c3(A__SEL(mark(x0), a__from(s(mark(z0)))), MARK(x0))
   A__SEL(s(x0), cons(x1, from(0))) -> c3(A__SEL(mark(x0), a__from(0)), MARK(x0))
   A__SEL(s(from(z0)), cons(x1, from(x2))) -> c3(A__SEL(a__from(mark(z0)), a__from(mark(x2))), MARK(from(z0)))
   A__SEL(s(sel(z0, z1)), cons(x1, from(x2))) -> c3(A__SEL(a__sel(mark(z0), mark(z1)), a__from(mark(x2))), MARK(sel(z0, z1)))
   A__SEL(s(s(z0)), cons(x1, from(x2))) -> c3(A__SEL(s(mark(z0)), a__from(mark(x2))), MARK(s(z0)))
   A__SEL(s(x0), cons(x1, from(x2))) -> c3(MARK(x0))
   A__SEL(s(cons(z0, z1)), cons(x1, from(x2))) -> c3(MARK(cons(z0, z1)))
   A__SEL(s(0), cons(x1, from(x2))) -> c3(A__SEL(0, a__from(mark(x2))))
   A__SEL(s(x0), cons(x1, sel(x2, from(z0)))) -> c3(A__SEL(mark(x0), a__sel(mark(x2), a__from(mark(z0)))), MARK(x0))
   A__SEL(s(x0), cons(x1, sel(x2, sel(z0, z1)))) -> c3(A__SEL(mark(x0), a__sel(mark(x2), a__sel(mark(z0), mark(z1)))), MARK(x0))
   A__SEL(s(x0), cons(x1, sel(x2, cons(z0, z1)))) -> c3(A__SEL(mark(x0), a__sel(mark(x2), cons(mark(z0), z1))), MARK(x0))
   A__SEL(s(x0), cons(x1, sel(x2, s(z0)))) -> c3(A__SEL(mark(x0), a__sel(mark(x2), s(mark(z0)))), MARK(x0))
   A__SEL(s(x0), cons(x1, sel(x2, 0))) -> c3(A__SEL(mark(x0), a__sel(mark(x2), 0)), MARK(x0))
   A__SEL(s(x0), cons(x1, sel(from(z0), x3))) -> c3(A__SEL(mark(x0), a__sel(a__from(mark(z0)), mark(x3))), MARK(x0))
   A__SEL(s(x0), cons(x1, sel(sel(z0, z1), x3))) -> c3(A__SEL(mark(x0), a__sel(a__sel(mark(z0), mark(z1)), mark(x3))), MARK(x0))
   A__SEL(s(x0), cons(x1, sel(cons(z0, z1), x3))) -> c3(A__SEL(mark(x0), a__sel(cons(mark(z0), z1), mark(x3))), MARK(x0))
   A__SEL(s(x0), cons(x1, sel(s(z0), x3))) -> c3(A__SEL(mark(x0), a__sel(s(mark(z0)), mark(x3))), MARK(x0))
   A__SEL(s(x0), cons(x1, sel(0, x3))) -> c3(A__SEL(mark(x0), a__sel(0, mark(x3))), MARK(x0))
   A__SEL(s(from(z0)), cons(x1, sel(x2, x3))) -> c3(A__SEL(a__from(mark(z0)), a__sel(mark(x2), mark(x3))), MARK(from(z0)))
   A__SEL(s(sel(z0, z1)), cons(x1, sel(x2, x3))) -> c3(A__SEL(a__sel(mark(z0), mark(z1)), a__sel(mark(x2), mark(x3))), MARK(sel(z0, z1)))
   A__SEL(s(s(z0)), cons(x1, sel(x2, x3))) -> c3(A__SEL(s(mark(z0)), a__sel(mark(x2), mark(x3))), MARK(s(z0)))
   A__SEL(s(x0), cons(x1, sel(x2, x3))) -> c3(MARK(x0))
   A__SEL(s(cons(z0, z1)), cons(x1, sel(x2, x3))) -> c3(MARK(cons(z0, z1)))
   A__SEL(s(0), cons(x1, sel(x2, x3))) -> c3(A__SEL(0, a__sel(mark(x2), mark(x3))))
   A__SEL(s(x0), cons(x1, cons(from(z0), x3))) -> c3(A__SEL(mark(x0), cons(a__from(mark(z0)), x3)), MARK(x0))
   A__SEL(s(x0), cons(x1, cons(sel(z0, z1), x3))) -> c3(A__SEL(mark(x0), cons(a__sel(mark(z0), mark(z1)), x3)), MARK(x0))
   A__SEL(s(x0), cons(x1, cons(cons(z0, z1), x3))) -> c3(A__SEL(mark(x0), cons(cons(mark(z0), z1), x3)), MARK(x0))
   A__SEL(s(x0), cons(x1, cons(s(z0), x3))) -> c3(A__SEL(mark(x0), cons(s(mark(z0)), x3)), MARK(x0))
   A__SEL(s(x0), cons(x1, cons(0, x3))) -> c3(A__SEL(mark(x0), cons(0, x3)), MARK(x0))
   A__SEL(s(from(z0)), cons(x1, cons(x2, x3))) -> c3(A__SEL(a__from(mark(z0)), cons(mark(x2), x3)), MARK(from(z0)))
   A__SEL(s(sel(z0, z1)), cons(x1, cons(x2, x3))) -> c3(A__SEL(a__sel(mark(z0), mark(z1)), cons(mark(x2), x3)), MARK(sel(z0, z1)))
   A__SEL(s(s(z0)), cons(x1, cons(x2, x3))) -> c3(A__SEL(s(mark(z0)), cons(mark(x2), x3)), MARK(s(z0)))
   A__SEL(s(cons(z0, z1)), cons(x1, cons(x2, x3))) -> c3(MARK(cons(z0, z1)))
   A__SEL(s(0), cons(x1, cons(x2, x3))) -> c3(A__SEL(0, cons(mark(x2), x3)))
   A__SEL(s(from(from(z0))), cons(x1, x2)) -> c3(A__SEL(a__from(a__from(mark(z0))), mark(x2)), MARK(from(from(z0))))
   A__SEL(s(from(sel(z0, z1))), cons(x1, x2)) -> c3(A__SEL(a__from(a__sel(mark(z0), mark(z1))), mark(x2)), MARK(from(sel(z0, z1))))
   A__SEL(s(from(cons(z0, z1))), cons(x1, x2)) -> c3(A__SEL(a__from(cons(mark(z0), z1)), mark(x2)), MARK(from(cons(z0, z1))))
   A__SEL(s(from(s(z0))), cons(x1, x2)) -> c3(A__SEL(a__from(s(mark(z0))), mark(x2)), MARK(from(s(z0))))
   A__SEL(s(from(0)), cons(x1, x2)) -> c3(A__SEL(a__from(0), mark(x2)), MARK(from(0)))
   A__SEL(s(from(x0)), cons(x1, x2)) -> c3(MARK(from(x0)))
   A__SEL(s(from(x0)), cons(x1, s(z0))) -> c3(MARK(from(x0)))
   A__SEL(s(from(x0)), cons(x1, 0)) -> c3(MARK(from(x0)))
   A__SEL(s(sel(x0, from(z0))), cons(x2, x3)) -> c3(A__SEL(a__sel(mark(x0), a__from(mark(z0))), mark(x3)), MARK(sel(x0, from(z0))))
   A__SEL(s(sel(x0, sel(z0, z1))), cons(x2, x3)) -> c3(A__SEL(a__sel(mark(x0), a__sel(mark(z0), mark(z1))), mark(x3)), MARK(sel(x0, sel(z0, z1))))
   A__SEL(s(sel(x0, cons(z0, z1))), cons(x2, x3)) -> c3(A__SEL(a__sel(mark(x0), cons(mark(z0), z1)), mark(x3)), MARK(sel(x0, cons(z0, z1))))
   A__SEL(s(sel(x0, s(z0))), cons(x2, x3)) -> c3(A__SEL(a__sel(mark(x0), s(mark(z0))), mark(x3)), MARK(sel(x0, s(z0))))
   A__SEL(s(sel(x0, 0)), cons(x2, x3)) -> c3(A__SEL(a__sel(mark(x0), 0), mark(x3)), MARK(sel(x0, 0)))
   A__SEL(s(sel(from(z0), x1)), cons(x2, x3)) -> c3(A__SEL(a__sel(a__from(mark(z0)), mark(x1)), mark(x3)), MARK(sel(from(z0), x1)))
   A__SEL(s(sel(sel(z0, z1), x1)), cons(x2, x3)) -> c3(A__SEL(a__sel(a__sel(mark(z0), mark(z1)), mark(x1)), mark(x3)), MARK(sel(sel(z0, z1), x1)))
   A__SEL(s(sel(cons(z0, z1), x1)), cons(x2, x3)) -> c3(A__SEL(a__sel(cons(mark(z0), z1), mark(x1)), mark(x3)), MARK(sel(cons(z0, z1), x1)))
   A__SEL(s(sel(s(z0), x1)), cons(x2, x3)) -> c3(A__SEL(a__sel(s(mark(z0)), mark(x1)), mark(x3)), MARK(sel(s(z0), x1)))
   A__SEL(s(sel(0, x1)), cons(x2, x3)) -> c3(A__SEL(a__sel(0, mark(x1)), mark(x3)), MARK(sel(0, x1)))
   A__SEL(s(sel(x0, x1)), cons(x2, s(z0))) -> c3(MARK(sel(x0, x1)))
   A__SEL(s(sel(x0, x1)), cons(x2, 0)) -> c3(MARK(sel(x0, x1)))
   A__SEL(s(sel(x0, x1)), cons(x2, x3)) -> c3(MARK(sel(x0, x1)))
   A__SEL(s(s(from(z0))), cons(x1, x2)) -> c3(A__SEL(s(a__from(mark(z0))), mark(x2)), MARK(s(from(z0))))
   A__SEL(s(s(sel(z0, z1))), cons(x1, x2)) -> c3(A__SEL(s(a__sel(mark(z0), mark(z1))), mark(x2)), MARK(s(sel(z0, z1))))
   A__SEL(s(s(cons(z0, z1))), cons(x1, x2)) -> c3(A__SEL(s(cons(mark(z0), z1)), mark(x2)), MARK(s(cons(z0, z1))))
   A__SEL(s(s(s(z0))), cons(x1, x2)) -> c3(A__SEL(s(s(mark(z0))), mark(x2)), MARK(s(s(z0))))
   A__SEL(s(s(0)), cons(x1, x2)) -> c3(A__SEL(s(0), mark(x2)), MARK(s(0)))
   A__SEL(s(s(x0)), cons(x1, x2)) -> c3(MARK(s(x0)))
   A__SEL(s(s(x0)), cons(x1, s(z0))) -> c3(MARK(s(x0)))
   A__SEL(s(s(x0)), cons(x1, 0)) -> c3(MARK(s(x0)))
   A__SEL(s(x0), cons(x1, from(x2))) -> c4(A__SEL(mark(x0), cons(mark(mark(x2)), from(s(mark(x2))))), MARK(from(x2)))
   A__SEL(s(x0), cons(x1, from(from(z0)))) -> c4(A__SEL(mark(x0), a__from(a__from(mark(z0)))), MARK(from(from(z0))))
   A__SEL(s(x0), cons(x1, from(sel(z0, z1)))) -> c4(A__SEL(mark(x0), a__from(a__sel(mark(z0), mark(z1)))), MARK(from(sel(z0, z1))))
   A__SEL(s(x0), cons(x1, from(cons(z0, z1)))) -> c4(A__SEL(mark(x0), a__from(cons(mark(z0), z1))), MARK(from(cons(z0, z1))))
   A__SEL(s(x0), cons(x1, from(s(z0)))) -> c4(A__SEL(mark(x0), a__from(s(mark(z0)))), MARK(from(s(z0))))
   A__SEL(s(x0), cons(x1, from(0))) -> c4(A__SEL(mark(x0), a__from(0)), MARK(from(0)))
   A__SEL(s(from(z0)), cons(x1, from(x2))) -> c4(A__SEL(a__from(mark(z0)), a__from(mark(x2))), MARK(from(x2)))
   A__SEL(s(sel(z0, z1)), cons(x1, from(x2))) -> c4(A__SEL(a__sel(mark(z0), mark(z1)), a__from(mark(x2))), MARK(from(x2)))
   A__SEL(s(s(z0)), cons(x1, from(x2))) -> c4(A__SEL(s(mark(z0)), a__from(mark(x2))), MARK(from(x2)))
   A__SEL(s(0), cons(x1, from(x2))) -> c4(A__SEL(0, a__from(mark(x2))), MARK(from(x2)))
   A__SEL(s(x0), cons(x1, from(x2))) -> c4(MARK(from(x2)))
   A__SEL(s(cons(z0, z1)), cons(x1, from(x2))) -> c4(MARK(from(x2)))
   A__SEL(s(x0), cons(x1, sel(x2, from(z0)))) -> c4(A__SEL(mark(x0), a__sel(mark(x2), a__from(mark(z0)))), MARK(sel(x2, from(z0))))
   A__SEL(s(x0), cons(x1, sel(x2, sel(z0, z1)))) -> c4(A__SEL(mark(x0), a__sel(mark(x2), a__sel(mark(z0), mark(z1)))), MARK(sel(x2, sel(z0, z1))))
   A__SEL(s(x0), cons(x1, sel(x2, cons(z0, z1)))) -> c4(A__SEL(mark(x0), a__sel(mark(x2), cons(mark(z0), z1))), MARK(sel(x2, cons(z0, z1))))
   A__SEL(s(x0), cons(x1, sel(x2, s(z0)))) -> c4(A__SEL(mark(x0), a__sel(mark(x2), s(mark(z0)))), MARK(sel(x2, s(z0))))
   A__SEL(s(x0), cons(x1, sel(x2, 0))) -> c4(A__SEL(mark(x0), a__sel(mark(x2), 0)), MARK(sel(x2, 0)))
   A__SEL(s(x0), cons(x1, sel(from(z0), x3))) -> c4(A__SEL(mark(x0), a__sel(a__from(mark(z0)), mark(x3))), MARK(sel(from(z0), x3)))
   A__SEL(s(x0), cons(x1, sel(sel(z0, z1), x3))) -> c4(A__SEL(mark(x0), a__sel(a__sel(mark(z0), mark(z1)), mark(x3))), MARK(sel(sel(z0, z1), x3)))
   A__SEL(s(x0), cons(x1, sel(cons(z0, z1), x3))) -> c4(A__SEL(mark(x0), a__sel(cons(mark(z0), z1), mark(x3))), MARK(sel(cons(z0, z1), x3)))
   A__SEL(s(x0), cons(x1, sel(s(z0), x3))) -> c4(A__SEL(mark(x0), a__sel(s(mark(z0)), mark(x3))), MARK(sel(s(z0), x3)))
   A__SEL(s(x0), cons(x1, sel(0, x3))) -> c4(A__SEL(mark(x0), a__sel(0, mark(x3))), MARK(sel(0, x3)))
   A__SEL(s(from(z0)), cons(x1, sel(x2, x3))) -> c4(A__SEL(a__from(mark(z0)), a__sel(mark(x2), mark(x3))), MARK(sel(x2, x3)))
   A__SEL(s(sel(z0, z1)), cons(x1, sel(x2, x3))) -> c4(A__SEL(a__sel(mark(z0), mark(z1)), a__sel(mark(x2), mark(x3))), MARK(sel(x2, x3)))
   A__SEL(s(s(z0)), cons(x1, sel(x2, x3))) -> c4(A__SEL(s(mark(z0)), a__sel(mark(x2), mark(x3))), MARK(sel(x2, x3)))
   A__SEL(s(0), cons(x1, sel(x2, x3))) -> c4(A__SEL(0, a__sel(mark(x2), mark(x3))), MARK(sel(x2, x3)))
   A__SEL(s(x0), cons(x1, sel(x2, x3))) -> c4(MARK(sel(x2, x3)))
   A__SEL(s(cons(z0, z1)), cons(x1, sel(x2, x3))) -> c4(MARK(sel(x2, x3)))
   A__SEL(s(x0), cons(x1, cons(from(z0), x3))) -> c4(A__SEL(mark(x0), cons(a__from(mark(z0)), x3)), MARK(cons(from(z0), x3)))
   A__SEL(s(x0), cons(x1, cons(sel(z0, z1), x3))) -> c4(A__SEL(mark(x0), cons(a__sel(mark(z0), mark(z1)), x3)), MARK(cons(sel(z0, z1), x3)))
   A__SEL(s(x0), cons(x1, cons(cons(z0, z1), x3))) -> c4(A__SEL(mark(x0), cons(cons(mark(z0), z1), x3)), MARK(cons(cons(z0, z1), x3)))
   A__SEL(s(x0), cons(x1, cons(s(z0), x3))) -> c4(A__SEL(mark(x0), cons(s(mark(z0)), x3)), MARK(cons(s(z0), x3)))
   A__SEL(s(x0), cons(x1, cons(0, x3))) -> c4(A__SEL(mark(x0), cons(0, x3)), MARK(cons(0, x3)))
   A__SEL(s(from(z0)), cons(x1, cons(x2, x3))) -> c4(A__SEL(a__from(mark(z0)), cons(mark(x2), x3)), MARK(cons(x2, x3)))
   A__SEL(s(sel(z0, z1)), cons(x1, cons(x2, x3))) -> c4(A__SEL(a__sel(mark(z0), mark(z1)), cons(mark(x2), x3)), MARK(cons(x2, x3)))
   A__SEL(s(s(z0)), cons(x1, cons(x2, x3))) -> c4(A__SEL(s(mark(z0)), cons(mark(x2), x3)), MARK(cons(x2, x3)))
   A__SEL(s(0), cons(x1, cons(x2, x3))) -> c4(A__SEL(0, cons(mark(x2), x3)), MARK(cons(x2, x3)))
   A__SEL(s(x0), cons(x1, cons(x2, x3))) -> c4(MARK(cons(x2, x3)))
   A__SEL(s(cons(z0, z1)), cons(x1, cons(x2, x3))) -> c4(MARK(cons(x2, x3)))
   A__SEL(s(from(from(z0))), cons(x1, x2)) -> c4(A__SEL(a__from(a__from(mark(z0))), mark(x2)), MARK(x2))
   A__SEL(s(from(sel(z0, z1))), cons(x1, x2)) -> c4(A__SEL(a__from(a__sel(mark(z0), mark(z1))), mark(x2)), MARK(x2))
   A__SEL(s(from(cons(z0, z1))), cons(x1, x2)) -> c4(A__SEL(a__from(cons(mark(z0), z1)), mark(x2)), MARK(x2))
   A__SEL(s(from(s(z0))), cons(x1, x2)) -> c4(A__SEL(a__from(s(mark(z0))), mark(x2)), MARK(x2))
   A__SEL(s(from(0)), cons(x1, x2)) -> c4(A__SEL(a__from(0), mark(x2)), MARK(x2))
   A__SEL(s(from(x0)), cons(x1, s(z0))) -> c4(MARK(s(z0)))
   A__SEL(s(from(x0)), cons(x1, x2)) -> c4(MARK(x2))
   A__SEL(s(sel(x0, from(z0))), cons(x2, x3)) -> c4(A__SEL(a__sel(mark(x0), a__from(mark(z0))), mark(x3)), MARK(x3))
   A__SEL(s(sel(x0, sel(z0, z1))), cons(x2, x3)) -> c4(A__SEL(a__sel(mark(x0), a__sel(mark(z0), mark(z1))), mark(x3)), MARK(x3))
   A__SEL(s(sel(x0, cons(z0, z1))), cons(x2, x3)) -> c4(A__SEL(a__sel(mark(x0), cons(mark(z0), z1)), mark(x3)), MARK(x3))
   A__SEL(s(sel(x0, s(z0))), cons(x2, x3)) -> c4(A__SEL(a__sel(mark(x0), s(mark(z0))), mark(x3)), MARK(x3))
   A__SEL(s(sel(x0, 0)), cons(x2, x3)) -> c4(A__SEL(a__sel(mark(x0), 0), mark(x3)), MARK(x3))
   A__SEL(s(sel(from(z0), x1)), cons(x2, x3)) -> c4(A__SEL(a__sel(a__from(mark(z0)), mark(x1)), mark(x3)), MARK(x3))
   A__SEL(s(sel(sel(z0, z1), x1)), cons(x2, x3)) -> c4(A__SEL(a__sel(a__sel(mark(z0), mark(z1)), mark(x1)), mark(x3)), MARK(x3))
   A__SEL(s(sel(cons(z0, z1), x1)), cons(x2, x3)) -> c4(A__SEL(a__sel(cons(mark(z0), z1), mark(x1)), mark(x3)), MARK(x3))
   A__SEL(s(sel(s(z0), x1)), cons(x2, x3)) -> c4(A__SEL(a__sel(s(mark(z0)), mark(x1)), mark(x3)), MARK(x3))
   A__SEL(s(sel(0, x1)), cons(x2, x3)) -> c4(A__SEL(a__sel(0, mark(x1)), mark(x3)), MARK(x3))
   A__SEL(s(sel(x0, x1)), cons(x2, s(z0))) -> c4(MARK(s(z0)))
   A__SEL(s(sel(x0, x1)), cons(x2, x3)) -> c4(MARK(x3))
   A__SEL(s(s(from(z0))), cons(x1, x2)) -> c4(A__SEL(s(a__from(mark(z0))), mark(x2)), MARK(x2))
   A__SEL(s(s(sel(z0, z1))), cons(x1, x2)) -> c4(A__SEL(s(a__sel(mark(z0), mark(z1))), mark(x2)), MARK(x2))
   A__SEL(s(s(cons(z0, z1))), cons(x1, x2)) -> c4(A__SEL(s(cons(mark(z0), z1)), mark(x2)), MARK(x2))
   A__SEL(s(s(s(z0))), cons(x1, x2)) -> c4(A__SEL(s(s(mark(z0))), mark(x2)), MARK(x2))
   A__SEL(s(s(0)), cons(x1, x2)) -> c4(A__SEL(s(0), mark(x2)), MARK(x2))
   A__SEL(s(s(x0)), cons(x1, s(z0))) -> c4(MARK(s(z0)))
   A__SEL(s(0), cons(x0, s(z0))) -> c4(MARK(s(z0)))
   MARK(sel(x0, from(x1))) -> c7(A__SEL(mark(x0), cons(mark(mark(x1)), from(s(mark(x1))))), MARK(x0))
   MARK(sel(x0, from(from(z0)))) -> c7(A__SEL(mark(x0), a__from(a__from(mark(z0)))), MARK(x0))
   MARK(sel(x0, from(sel(z0, z1)))) -> c7(A__SEL(mark(x0), a__from(a__sel(mark(z0), mark(z1)))), MARK(x0))
   MARK(sel(x0, from(cons(z0, z1)))) -> c7(A__SEL(mark(x0), a__from(cons(mark(z0), z1))), MARK(x0))
   MARK(sel(x0, from(s(z0)))) -> c7(A__SEL(mark(x0), a__from(s(mark(z0)))), MARK(x0))
   MARK(sel(x0, from(0))) -> c7(A__SEL(mark(x0), a__from(0)), MARK(x0))
   MARK(sel(from(z0), from(x1))) -> c7(A__SEL(a__from(mark(z0)), a__from(mark(x1))), MARK(from(z0)))
   MARK(sel(sel(z0, z1), from(x1))) -> c7(A__SEL(a__sel(mark(z0), mark(z1)), a__from(mark(x1))), MARK(sel(z0, z1)))
   MARK(sel(s(z0), from(x1))) -> c7(A__SEL(s(mark(z0)), a__from(mark(x1))), MARK(s(z0)))
   MARK(sel(x0, from(x1))) -> c7(MARK(x0))
   MARK(sel(cons(z0, z1), from(x1))) -> c7(MARK(cons(z0, z1)))
   MARK(sel(0, from(x1))) -> c7(A__SEL(0, a__from(mark(x1))))
   MARK(sel(x0, sel(x1, from(z0)))) -> c7(A__SEL(mark(x0), a__sel(mark(x1), a__from(mark(z0)))), MARK(x0))
   MARK(sel(x0, sel(x1, sel(z0, z1)))) -> c7(A__SEL(mark(x0), a__sel(mark(x1), a__sel(mark(z0), mark(z1)))), MARK(x0))
   MARK(sel(x0, sel(x1, cons(z0, z1)))) -> c7(A__SEL(mark(x0), a__sel(mark(x1), cons(mark(z0), z1))), MARK(x0))
   MARK(sel(x0, sel(x1, s(z0)))) -> c7(A__SEL(mark(x0), a__sel(mark(x1), s(mark(z0)))), MARK(x0))
   MARK(sel(x0, sel(x1, 0))) -> c7(A__SEL(mark(x0), a__sel(mark(x1), 0)), MARK(x0))
   MARK(sel(x0, sel(from(z0), x2))) -> c7(A__SEL(mark(x0), a__sel(a__from(mark(z0)), mark(x2))), MARK(x0))
   MARK(sel(x0, sel(sel(z0, z1), x2))) -> c7(A__SEL(mark(x0), a__sel(a__sel(mark(z0), mark(z1)), mark(x2))), MARK(x0))
   MARK(sel(x0, sel(cons(z0, z1), x2))) -> c7(A__SEL(mark(x0), a__sel(cons(mark(z0), z1), mark(x2))), MARK(x0))
   MARK(sel(x0, sel(s(z0), x2))) -> c7(A__SEL(mark(x0), a__sel(s(mark(z0)), mark(x2))), MARK(x0))
   MARK(sel(x0, sel(0, x2))) -> c7(A__SEL(mark(x0), a__sel(0, mark(x2))), MARK(x0))
   MARK(sel(from(z0), sel(x1, x2))) -> c7(A__SEL(a__from(mark(z0)), a__sel(mark(x1), mark(x2))), MARK(from(z0)))
   MARK(sel(sel(z0, z1), sel(x1, x2))) -> c7(A__SEL(a__sel(mark(z0), mark(z1)), a__sel(mark(x1), mark(x2))), MARK(sel(z0, z1)))
   MARK(sel(s(z0), sel(x1, x2))) -> c7(A__SEL(s(mark(z0)), a__sel(mark(x1), mark(x2))), MARK(s(z0)))
   MARK(sel(x0, sel(x1, x2))) -> c7(MARK(x0))
   MARK(sel(cons(z0, z1), sel(x1, x2))) -> c7(MARK(cons(z0, z1)))
   MARK(sel(0, sel(x1, x2))) -> c7(A__SEL(0, a__sel(mark(x1), mark(x2))))
   MARK(sel(x0, cons(from(z0), x2))) -> c7(A__SEL(mark(x0), cons(a__from(mark(z0)), x2)), MARK(x0))
   MARK(sel(x0, cons(sel(z0, z1), x2))) -> c7(A__SEL(mark(x0), cons(a__sel(mark(z0), mark(z1)), x2)), MARK(x0))
   MARK(sel(x0, cons(cons(z0, z1), x2))) -> c7(A__SEL(mark(x0), cons(cons(mark(z0), z1), x2)), MARK(x0))
   MARK(sel(x0, cons(s(z0), x2))) -> c7(A__SEL(mark(x0), cons(s(mark(z0)), x2)), MARK(x0))
   MARK(sel(x0, cons(0, x2))) -> c7(A__SEL(mark(x0), cons(0, x2)), MARK(x0))
   MARK(sel(from(z0), cons(x1, x2))) -> c7(A__SEL(a__from(mark(z0)), cons(mark(x1), x2)), MARK(from(z0)))
   MARK(sel(sel(z0, z1), cons(x1, x2))) -> c7(A__SEL(a__sel(mark(z0), mark(z1)), cons(mark(x1), x2)), MARK(sel(z0, z1)))
   MARK(sel(s(z0), cons(x1, x2))) -> c7(A__SEL(s(mark(z0)), cons(mark(x1), x2)), MARK(s(z0)))
   MARK(sel(cons(z0, z1), cons(x1, x2))) -> c7(MARK(cons(z0, z1)))
   MARK(sel(0, cons(x1, x2))) -> c7(A__SEL(0, cons(mark(x1), x2)))
S tuples:
   A__FROM(z0) -> c(MARK(z0))
   A__SEL(0, cons(z0, z1)) -> c2(MARK(z0))
   MARK(from(z0)) -> c6(A__FROM(mark(z0)), MARK(z0))
   MARK(cons(z0, z1)) -> c9(MARK(z0))
   MARK(s(z0)) -> c10(MARK(z0))
   A__SEL(s(x0), cons(x1, s(z0))) -> c3(MARK(x0))
   A__SEL(s(x0), cons(x1, 0)) -> c3(MARK(x0))
   A__SEL(s(cons(z0, z1)), cons(x1, x2)) -> c3(MARK(cons(z0, z1)))
   A__SEL(s(x0), cons(x1, s(z0))) -> c4(MARK(s(z0)))
   A__SEL(s(cons(z0, z1)), cons(x1, x2)) -> c4(MARK(x2))
   MARK(sel(from(z0), x1)) -> c7(A__SEL(a__from(mark(z0)), mark(x1)), MARK(from(z0)))
   MARK(sel(sel(z0, z1), x1)) -> c7(A__SEL(a__sel(mark(z0), mark(z1)), mark(x1)), MARK(sel(z0, z1)))
   MARK(sel(s(z0), x1)) -> c7(A__SEL(s(mark(z0)), mark(x1)), MARK(s(z0)))
   MARK(sel(x0, s(z0))) -> c7(MARK(x0))
   MARK(sel(x0, 0)) -> c7(MARK(x0))
   MARK(sel(cons(z0, z1), x1)) -> c7(MARK(cons(z0, z1)))
   MARK(sel(0, x1)) -> c7(A__SEL(0, mark(x1)))
   MARK(sel(x0, from(z0))) -> c8(A__SEL(mark(x0), a__from(mark(z0))), MARK(from(z0)))
   MARK(sel(x0, sel(z0, z1))) -> c8(A__SEL(mark(x0), a__sel(mark(z0), mark(z1))), MARK(sel(z0, z1)))
   MARK(sel(x0, cons(z0, z1))) -> c8(A__SEL(mark(x0), cons(mark(z0), z1)), MARK(cons(z0, z1)))
   MARK(sel(from(z0), x1)) -> c8(A__SEL(a__from(mark(z0)), mark(x1)), MARK(x1))
   MARK(sel(sel(z0, z1), x1)) -> c8(A__SEL(a__sel(mark(z0), mark(z1)), mark(x1)), MARK(x1))
   MARK(sel(s(z0), x1)) -> c8(A__SEL(s(mark(z0)), mark(x1)), MARK(x1))
   MARK(sel(0, x1)) -> c8(A__SEL(0, mark(x1)), MARK(x1))
   MARK(sel(x0, s(z0))) -> c8(MARK(s(z0)))
   MARK(sel(cons(z0, z1), x1)) -> c8(MARK(x1))
   A__SEL(s(x0), cons(x1, from(x2))) -> c3(A__SEL(mark(x0), cons(mark(mark(x2)), from(s(mark(x2))))), MARK(x0))
   A__SEL(s(x0), cons(x1, from(from(z0)))) -> c3(A__SEL(mark(x0), a__from(a__from(mark(z0)))), MARK(x0))
   A__SEL(s(x0), cons(x1, from(sel(z0, z1)))) -> c3(A__SEL(mark(x0), a__from(a__sel(mark(z0), mark(z1)))), MARK(x0))
   A__SEL(s(x0), cons(x1, from(cons(z0, z1)))) -> c3(A__SEL(mark(x0), a__from(cons(mark(z0), z1))), MARK(x0))
   A__SEL(s(x0), cons(x1, from(s(z0)))) -> c3(A__SEL(mark(x0), a__from(s(mark(z0)))), MARK(x0))
   A__SEL(s(x0), cons(x1, from(0))) -> c3(A__SEL(mark(x0), a__from(0)), MARK(x0))
   A__SEL(s(from(z0)), cons(x1, from(x2))) -> c3(A__SEL(a__from(mark(z0)), a__from(mark(x2))), MARK(from(z0)))
   A__SEL(s(sel(z0, z1)), cons(x1, from(x2))) -> c3(A__SEL(a__sel(mark(z0), mark(z1)), a__from(mark(x2))), MARK(sel(z0, z1)))
   A__SEL(s(s(z0)), cons(x1, from(x2))) -> c3(A__SEL(s(mark(z0)), a__from(mark(x2))), MARK(s(z0)))
   A__SEL(s(x0), cons(x1, from(x2))) -> c3(MARK(x0))
   A__SEL(s(cons(z0, z1)), cons(x1, from(x2))) -> c3(MARK(cons(z0, z1)))
   A__SEL(s(0), cons(x1, from(x2))) -> c3(A__SEL(0, a__from(mark(x2))))
   A__SEL(s(x0), cons(x1, sel(x2, from(z0)))) -> c3(A__SEL(mark(x0), a__sel(mark(x2), a__from(mark(z0)))), MARK(x0))
   A__SEL(s(x0), cons(x1, sel(x2, sel(z0, z1)))) -> c3(A__SEL(mark(x0), a__sel(mark(x2), a__sel(mark(z0), mark(z1)))), MARK(x0))
   A__SEL(s(x0), cons(x1, sel(x2, cons(z0, z1)))) -> c3(A__SEL(mark(x0), a__sel(mark(x2), cons(mark(z0), z1))), MARK(x0))
   A__SEL(s(x0), cons(x1, sel(x2, s(z0)))) -> c3(A__SEL(mark(x0), a__sel(mark(x2), s(mark(z0)))), MARK(x0))
   A__SEL(s(x0), cons(x1, sel(x2, 0))) -> c3(A__SEL(mark(x0), a__sel(mark(x2), 0)), MARK(x0))
   A__SEL(s(x0), cons(x1, sel(from(z0), x3))) -> c3(A__SEL(mark(x0), a__sel(a__from(mark(z0)), mark(x3))), MARK(x0))
   A__SEL(s(x0), cons(x1, sel(sel(z0, z1), x3))) -> c3(A__SEL(mark(x0), a__sel(a__sel(mark(z0), mark(z1)), mark(x3))), MARK(x0))
   A__SEL(s(x0), cons(x1, sel(cons(z0, z1), x3))) -> c3(A__SEL(mark(x0), a__sel(cons(mark(z0), z1), mark(x3))), MARK(x0))
   A__SEL(s(x0), cons(x1, sel(s(z0), x3))) -> c3(A__SEL(mark(x0), a__sel(s(mark(z0)), mark(x3))), MARK(x0))
   A__SEL(s(x0), cons(x1, sel(0, x3))) -> c3(A__SEL(mark(x0), a__sel(0, mark(x3))), MARK(x0))
   A__SEL(s(from(z0)), cons(x1, sel(x2, x3))) -> c3(A__SEL(a__from(mark(z0)), a__sel(mark(x2), mark(x3))), MARK(from(z0)))
   A__SEL(s(sel(z0, z1)), cons(x1, sel(x2, x3))) -> c3(A__SEL(a__sel(mark(z0), mark(z1)), a__sel(mark(x2), mark(x3))), MARK(sel(z0, z1)))
   A__SEL(s(s(z0)), cons(x1, sel(x2, x3))) -> c3(A__SEL(s(mark(z0)), a__sel(mark(x2), mark(x3))), MARK(s(z0)))
   A__SEL(s(x0), cons(x1, sel(x2, x3))) -> c3(MARK(x0))
   A__SEL(s(cons(z0, z1)), cons(x1, sel(x2, x3))) -> c3(MARK(cons(z0, z1)))
   A__SEL(s(0), cons(x1, sel(x2, x3))) -> c3(A__SEL(0, a__sel(mark(x2), mark(x3))))
   A__SEL(s(x0), cons(x1, cons(from(z0), x3))) -> c3(A__SEL(mark(x0), cons(a__from(mark(z0)), x3)), MARK(x0))
   A__SEL(s(x0), cons(x1, cons(sel(z0, z1), x3))) -> c3(A__SEL(mark(x0), cons(a__sel(mark(z0), mark(z1)), x3)), MARK(x0))
   A__SEL(s(x0), cons(x1, cons(cons(z0, z1), x3))) -> c3(A__SEL(mark(x0), cons(cons(mark(z0), z1), x3)), MARK(x0))
   A__SEL(s(x0), cons(x1, cons(s(z0), x3))) -> c3(A__SEL(mark(x0), cons(s(mark(z0)), x3)), MARK(x0))
   A__SEL(s(x0), cons(x1, cons(0, x3))) -> c3(A__SEL(mark(x0), cons(0, x3)), MARK(x0))
   A__SEL(s(from(z0)), cons(x1, cons(x2, x3))) -> c3(A__SEL(a__from(mark(z0)), cons(mark(x2), x3)), MARK(from(z0)))
   A__SEL(s(sel(z0, z1)), cons(x1, cons(x2, x3))) -> c3(A__SEL(a__sel(mark(z0), mark(z1)), cons(mark(x2), x3)), MARK(sel(z0, z1)))
   A__SEL(s(s(z0)), cons(x1, cons(x2, x3))) -> c3(A__SEL(s(mark(z0)), cons(mark(x2), x3)), MARK(s(z0)))
   A__SEL(s(cons(z0, z1)), cons(x1, cons(x2, x3))) -> c3(MARK(cons(z0, z1)))
   A__SEL(s(0), cons(x1, cons(x2, x3))) -> c3(A__SEL(0, cons(mark(x2), x3)))
   A__SEL(s(from(from(z0))), cons(x1, x2)) -> c3(A__SEL(a__from(a__from(mark(z0))), mark(x2)), MARK(from(from(z0))))
   A__SEL(s(from(sel(z0, z1))), cons(x1, x2)) -> c3(A__SEL(a__from(a__sel(mark(z0), mark(z1))), mark(x2)), MARK(from(sel(z0, z1))))
   A__SEL(s(from(cons(z0, z1))), cons(x1, x2)) -> c3(A__SEL(a__from(cons(mark(z0), z1)), mark(x2)), MARK(from(cons(z0, z1))))
   A__SEL(s(from(s(z0))), cons(x1, x2)) -> c3(A__SEL(a__from(s(mark(z0))), mark(x2)), MARK(from(s(z0))))
   A__SEL(s(from(0)), cons(x1, x2)) -> c3(A__SEL(a__from(0), mark(x2)), MARK(from(0)))
   A__SEL(s(from(x0)), cons(x1, x2)) -> c3(MARK(from(x0)))
   A__SEL(s(from(x0)), cons(x1, s(z0))) -> c3(MARK(from(x0)))
   A__SEL(s(from(x0)), cons(x1, 0)) -> c3(MARK(from(x0)))
   A__SEL(s(sel(x0, from(z0))), cons(x2, x3)) -> c3(A__SEL(a__sel(mark(x0), a__from(mark(z0))), mark(x3)), MARK(sel(x0, from(z0))))
   A__SEL(s(sel(x0, sel(z0, z1))), cons(x2, x3)) -> c3(A__SEL(a__sel(mark(x0), a__sel(mark(z0), mark(z1))), mark(x3)), MARK(sel(x0, sel(z0, z1))))
   A__SEL(s(sel(x0, cons(z0, z1))), cons(x2, x3)) -> c3(A__SEL(a__sel(mark(x0), cons(mark(z0), z1)), mark(x3)), MARK(sel(x0, cons(z0, z1))))
   A__SEL(s(sel(x0, s(z0))), cons(x2, x3)) -> c3(A__SEL(a__sel(mark(x0), s(mark(z0))), mark(x3)), MARK(sel(x0, s(z0))))
   A__SEL(s(sel(x0, 0)), cons(x2, x3)) -> c3(A__SEL(a__sel(mark(x0), 0), mark(x3)), MARK(sel(x0, 0)))
   A__SEL(s(sel(from(z0), x1)), cons(x2, x3)) -> c3(A__SEL(a__sel(a__from(mark(z0)), mark(x1)), mark(x3)), MARK(sel(from(z0), x1)))
   A__SEL(s(sel(sel(z0, z1), x1)), cons(x2, x3)) -> c3(A__SEL(a__sel(a__sel(mark(z0), mark(z1)), mark(x1)), mark(x3)), MARK(sel(sel(z0, z1), x1)))
   A__SEL(s(sel(cons(z0, z1), x1)), cons(x2, x3)) -> c3(A__SEL(a__sel(cons(mark(z0), z1), mark(x1)), mark(x3)), MARK(sel(cons(z0, z1), x1)))
   A__SEL(s(sel(s(z0), x1)), cons(x2, x3)) -> c3(A__SEL(a__sel(s(mark(z0)), mark(x1)), mark(x3)), MARK(sel(s(z0), x1)))
   A__SEL(s(sel(0, x1)), cons(x2, x3)) -> c3(A__SEL(a__sel(0, mark(x1)), mark(x3)), MARK(sel(0, x1)))
   A__SEL(s(sel(x0, x1)), cons(x2, s(z0))) -> c3(MARK(sel(x0, x1)))
   A__SEL(s(sel(x0, x1)), cons(x2, 0)) -> c3(MARK(sel(x0, x1)))
   A__SEL(s(sel(x0, x1)), cons(x2, x3)) -> c3(MARK(sel(x0, x1)))
   A__SEL(s(s(from(z0))), cons(x1, x2)) -> c3(A__SEL(s(a__from(mark(z0))), mark(x2)), MARK(s(from(z0))))
   A__SEL(s(s(sel(z0, z1))), cons(x1, x2)) -> c3(A__SEL(s(a__sel(mark(z0), mark(z1))), mark(x2)), MARK(s(sel(z0, z1))))
   A__SEL(s(s(cons(z0, z1))), cons(x1, x2)) -> c3(A__SEL(s(cons(mark(z0), z1)), mark(x2)), MARK(s(cons(z0, z1))))
   A__SEL(s(s(s(z0))), cons(x1, x2)) -> c3(A__SEL(s(s(mark(z0))), mark(x2)), MARK(s(s(z0))))
   A__SEL(s(s(0)), cons(x1, x2)) -> c3(A__SEL(s(0), mark(x2)), MARK(s(0)))
   A__SEL(s(s(x0)), cons(x1, x2)) -> c3(MARK(s(x0)))
   A__SEL(s(s(x0)), cons(x1, s(z0))) -> c3(MARK(s(x0)))
   A__SEL(s(s(x0)), cons(x1, 0)) -> c3(MARK(s(x0)))
   A__SEL(s(x0), cons(x1, from(x2))) -> c4(A__SEL(mark(x0), cons(mark(mark(x2)), from(s(mark(x2))))), MARK(from(x2)))
   A__SEL(s(x0), cons(x1, from(from(z0)))) -> c4(A__SEL(mark(x0), a__from(a__from(mark(z0)))), MARK(from(from(z0))))
   A__SEL(s(x0), cons(x1, from(sel(z0, z1)))) -> c4(A__SEL(mark(x0), a__from(a__sel(mark(z0), mark(z1)))), MARK(from(sel(z0, z1))))
   A__SEL(s(x0), cons(x1, from(cons(z0, z1)))) -> c4(A__SEL(mark(x0), a__from(cons(mark(z0), z1))), MARK(from(cons(z0, z1))))
   A__SEL(s(x0), cons(x1, from(s(z0)))) -> c4(A__SEL(mark(x0), a__from(s(mark(z0)))), MARK(from(s(z0))))
   A__SEL(s(x0), cons(x1, from(0))) -> c4(A__SEL(mark(x0), a__from(0)), MARK(from(0)))
   A__SEL(s(from(z0)), cons(x1, from(x2))) -> c4(A__SEL(a__from(mark(z0)), a__from(mark(x2))), MARK(from(x2)))
   A__SEL(s(sel(z0, z1)), cons(x1, from(x2))) -> c4(A__SEL(a__sel(mark(z0), mark(z1)), a__from(mark(x2))), MARK(from(x2)))
   A__SEL(s(s(z0)), cons(x1, from(x2))) -> c4(A__SEL(s(mark(z0)), a__from(mark(x2))), MARK(from(x2)))
   A__SEL(s(0), cons(x1, from(x2))) -> c4(A__SEL(0, a__from(mark(x2))), MARK(from(x2)))
   A__SEL(s(x0), cons(x1, from(x2))) -> c4(MARK(from(x2)))
   A__SEL(s(cons(z0, z1)), cons(x1, from(x2))) -> c4(MARK(from(x2)))
   A__SEL(s(x0), cons(x1, sel(x2, from(z0)))) -> c4(A__SEL(mark(x0), a__sel(mark(x2), a__from(mark(z0)))), MARK(sel(x2, from(z0))))
   A__SEL(s(x0), cons(x1, sel(x2, sel(z0, z1)))) -> c4(A__SEL(mark(x0), a__sel(mark(x2), a__sel(mark(z0), mark(z1)))), MARK(sel(x2, sel(z0, z1))))
   A__SEL(s(x0), cons(x1, sel(x2, cons(z0, z1)))) -> c4(A__SEL(mark(x0), a__sel(mark(x2), cons(mark(z0), z1))), MARK(sel(x2, cons(z0, z1))))
   A__SEL(s(x0), cons(x1, sel(x2, s(z0)))) -> c4(A__SEL(mark(x0), a__sel(mark(x2), s(mark(z0)))), MARK(sel(x2, s(z0))))
   A__SEL(s(x0), cons(x1, sel(x2, 0))) -> c4(A__SEL(mark(x0), a__sel(mark(x2), 0)), MARK(sel(x2, 0)))
   A__SEL(s(x0), cons(x1, sel(from(z0), x3))) -> c4(A__SEL(mark(x0), a__sel(a__from(mark(z0)), mark(x3))), MARK(sel(from(z0), x3)))
   A__SEL(s(x0), cons(x1, sel(sel(z0, z1), x3))) -> c4(A__SEL(mark(x0), a__sel(a__sel(mark(z0), mark(z1)), mark(x3))), MARK(sel(sel(z0, z1), x3)))
   A__SEL(s(x0), cons(x1, sel(cons(z0, z1), x3))) -> c4(A__SEL(mark(x0), a__sel(cons(mark(z0), z1), mark(x3))), MARK(sel(cons(z0, z1), x3)))
   A__SEL(s(x0), cons(x1, sel(s(z0), x3))) -> c4(A__SEL(mark(x0), a__sel(s(mark(z0)), mark(x3))), MARK(sel(s(z0), x3)))
   A__SEL(s(x0), cons(x1, sel(0, x3))) -> c4(A__SEL(mark(x0), a__sel(0, mark(x3))), MARK(sel(0, x3)))
   A__SEL(s(from(z0)), cons(x1, sel(x2, x3))) -> c4(A__SEL(a__from(mark(z0)), a__sel(mark(x2), mark(x3))), MARK(sel(x2, x3)))
   A__SEL(s(sel(z0, z1)), cons(x1, sel(x2, x3))) -> c4(A__SEL(a__sel(mark(z0), mark(z1)), a__sel(mark(x2), mark(x3))), MARK(sel(x2, x3)))
   A__SEL(s(s(z0)), cons(x1, sel(x2, x3))) -> c4(A__SEL(s(mark(z0)), a__sel(mark(x2), mark(x3))), MARK(sel(x2, x3)))
   A__SEL(s(0), cons(x1, sel(x2, x3))) -> c4(A__SEL(0, a__sel(mark(x2), mark(x3))), MARK(sel(x2, x3)))
   A__SEL(s(x0), cons(x1, sel(x2, x3))) -> c4(MARK(sel(x2, x3)))
   A__SEL(s(cons(z0, z1)), cons(x1, sel(x2, x3))) -> c4(MARK(sel(x2, x3)))
   A__SEL(s(x0), cons(x1, cons(from(z0), x3))) -> c4(A__SEL(mark(x0), cons(a__from(mark(z0)), x3)), MARK(cons(from(z0), x3)))
   A__SEL(s(x0), cons(x1, cons(sel(z0, z1), x3))) -> c4(A__SEL(mark(x0), cons(a__sel(mark(z0), mark(z1)), x3)), MARK(cons(sel(z0, z1), x3)))
   A__SEL(s(x0), cons(x1, cons(cons(z0, z1), x3))) -> c4(A__SEL(mark(x0), cons(cons(mark(z0), z1), x3)), MARK(cons(cons(z0, z1), x3)))
   A__SEL(s(x0), cons(x1, cons(s(z0), x3))) -> c4(A__SEL(mark(x0), cons(s(mark(z0)), x3)), MARK(cons(s(z0), x3)))
   A__SEL(s(x0), cons(x1, cons(0, x3))) -> c4(A__SEL(mark(x0), cons(0, x3)), MARK(cons(0, x3)))
   A__SEL(s(from(z0)), cons(x1, cons(x2, x3))) -> c4(A__SEL(a__from(mark(z0)), cons(mark(x2), x3)), MARK(cons(x2, x3)))
   A__SEL(s(sel(z0, z1)), cons(x1, cons(x2, x3))) -> c4(A__SEL(a__sel(mark(z0), mark(z1)), cons(mark(x2), x3)), MARK(cons(x2, x3)))
   A__SEL(s(s(z0)), cons(x1, cons(x2, x3))) -> c4(A__SEL(s(mark(z0)), cons(mark(x2), x3)), MARK(cons(x2, x3)))
   A__SEL(s(0), cons(x1, cons(x2, x3))) -> c4(A__SEL(0, cons(mark(x2), x3)), MARK(cons(x2, x3)))
   A__SEL(s(x0), cons(x1, cons(x2, x3))) -> c4(MARK(cons(x2, x3)))
   A__SEL(s(cons(z0, z1)), cons(x1, cons(x2, x3))) -> c4(MARK(cons(x2, x3)))
   A__SEL(s(from(from(z0))), cons(x1, x2)) -> c4(A__SEL(a__from(a__from(mark(z0))), mark(x2)), MARK(x2))
   A__SEL(s(from(sel(z0, z1))), cons(x1, x2)) -> c4(A__SEL(a__from(a__sel(mark(z0), mark(z1))), mark(x2)), MARK(x2))
   A__SEL(s(from(cons(z0, z1))), cons(x1, x2)) -> c4(A__SEL(a__from(cons(mark(z0), z1)), mark(x2)), MARK(x2))
   A__SEL(s(from(s(z0))), cons(x1, x2)) -> c4(A__SEL(a__from(s(mark(z0))), mark(x2)), MARK(x2))
   A__SEL(s(from(0)), cons(x1, x2)) -> c4(A__SEL(a__from(0), mark(x2)), MARK(x2))
   A__SEL(s(from(x0)), cons(x1, s(z0))) -> c4(MARK(s(z0)))
   A__SEL(s(from(x0)), cons(x1, x2)) -> c4(MARK(x2))
   A__SEL(s(sel(x0, from(z0))), cons(x2, x3)) -> c4(A__SEL(a__sel(mark(x0), a__from(mark(z0))), mark(x3)), MARK(x3))
   A__SEL(s(sel(x0, sel(z0, z1))), cons(x2, x3)) -> c4(A__SEL(a__sel(mark(x0), a__sel(mark(z0), mark(z1))), mark(x3)), MARK(x3))
   A__SEL(s(sel(x0, cons(z0, z1))), cons(x2, x3)) -> c4(A__SEL(a__sel(mark(x0), cons(mark(z0), z1)), mark(x3)), MARK(x3))
   A__SEL(s(sel(x0, s(z0))), cons(x2, x3)) -> c4(A__SEL(a__sel(mark(x0), s(mark(z0))), mark(x3)), MARK(x3))
   A__SEL(s(sel(x0, 0)), cons(x2, x3)) -> c4(A__SEL(a__sel(mark(x0), 0), mark(x3)), MARK(x3))
   A__SEL(s(sel(from(z0), x1)), cons(x2, x3)) -> c4(A__SEL(a__sel(a__from(mark(z0)), mark(x1)), mark(x3)), MARK(x3))
   A__SEL(s(sel(sel(z0, z1), x1)), cons(x2, x3)) -> c4(A__SEL(a__sel(a__sel(mark(z0), mark(z1)), mark(x1)), mark(x3)), MARK(x3))
   A__SEL(s(sel(cons(z0, z1), x1)), cons(x2, x3)) -> c4(A__SEL(a__sel(cons(mark(z0), z1), mark(x1)), mark(x3)), MARK(x3))
   A__SEL(s(sel(s(z0), x1)), cons(x2, x3)) -> c4(A__SEL(a__sel(s(mark(z0)), mark(x1)), mark(x3)), MARK(x3))
   A__SEL(s(sel(0, x1)), cons(x2, x3)) -> c4(A__SEL(a__sel(0, mark(x1)), mark(x3)), MARK(x3))
   A__SEL(s(sel(x0, x1)), cons(x2, s(z0))) -> c4(MARK(s(z0)))
   A__SEL(s(sel(x0, x1)), cons(x2, x3)) -> c4(MARK(x3))
   A__SEL(s(s(from(z0))), cons(x1, x2)) -> c4(A__SEL(s(a__from(mark(z0))), mark(x2)), MARK(x2))
   A__SEL(s(s(sel(z0, z1))), cons(x1, x2)) -> c4(A__SEL(s(a__sel(mark(z0), mark(z1))), mark(x2)), MARK(x2))
   A__SEL(s(s(cons(z0, z1))), cons(x1, x2)) -> c4(A__SEL(s(cons(mark(z0), z1)), mark(x2)), MARK(x2))
   A__SEL(s(s(s(z0))), cons(x1, x2)) -> c4(A__SEL(s(s(mark(z0))), mark(x2)), MARK(x2))
   A__SEL(s(s(0)), cons(x1, x2)) -> c4(A__SEL(s(0), mark(x2)), MARK(x2))
   A__SEL(s(s(x0)), cons(x1, s(z0))) -> c4(MARK(s(z0)))
   A__SEL(s(0), cons(x0, s(z0))) -> c4(MARK(s(z0)))
   MARK(sel(x0, from(x1))) -> c7(A__SEL(mark(x0), cons(mark(mark(x1)), from(s(mark(x1))))), MARK(x0))
   MARK(sel(x0, from(from(z0)))) -> c7(A__SEL(mark(x0), a__from(a__from(mark(z0)))), MARK(x0))
   MARK(sel(x0, from(sel(z0, z1)))) -> c7(A__SEL(mark(x0), a__from(a__sel(mark(z0), mark(z1)))), MARK(x0))
   MARK(sel(x0, from(cons(z0, z1)))) -> c7(A__SEL(mark(x0), a__from(cons(mark(z0), z1))), MARK(x0))
   MARK(sel(x0, from(s(z0)))) -> c7(A__SEL(mark(x0), a__from(s(mark(z0)))), MARK(x0))
   MARK(sel(x0, from(0))) -> c7(A__SEL(mark(x0), a__from(0)), MARK(x0))
   MARK(sel(from(z0), from(x1))) -> c7(A__SEL(a__from(mark(z0)), a__from(mark(x1))), MARK(from(z0)))
   MARK(sel(sel(z0, z1), from(x1))) -> c7(A__SEL(a__sel(mark(z0), mark(z1)), a__from(mark(x1))), MARK(sel(z0, z1)))
   MARK(sel(s(z0), from(x1))) -> c7(A__SEL(s(mark(z0)), a__from(mark(x1))), MARK(s(z0)))
   MARK(sel(x0, from(x1))) -> c7(MARK(x0))
   MARK(sel(cons(z0, z1), from(x1))) -> c7(MARK(cons(z0, z1)))
   MARK(sel(0, from(x1))) -> c7(A__SEL(0, a__from(mark(x1))))
   MARK(sel(x0, sel(x1, from(z0)))) -> c7(A__SEL(mark(x0), a__sel(mark(x1), a__from(mark(z0)))), MARK(x0))
   MARK(sel(x0, sel(x1, sel(z0, z1)))) -> c7(A__SEL(mark(x0), a__sel(mark(x1), a__sel(mark(z0), mark(z1)))), MARK(x0))
   MARK(sel(x0, sel(x1, cons(z0, z1)))) -> c7(A__SEL(mark(x0), a__sel(mark(x1), cons(mark(z0), z1))), MARK(x0))
   MARK(sel(x0, sel(x1, s(z0)))) -> c7(A__SEL(mark(x0), a__sel(mark(x1), s(mark(z0)))), MARK(x0))
   MARK(sel(x0, sel(x1, 0))) -> c7(A__SEL(mark(x0), a__sel(mark(x1), 0)), MARK(x0))
   MARK(sel(x0, sel(from(z0), x2))) -> c7(A__SEL(mark(x0), a__sel(a__from(mark(z0)), mark(x2))), MARK(x0))
   MARK(sel(x0, sel(sel(z0, z1), x2))) -> c7(A__SEL(mark(x0), a__sel(a__sel(mark(z0), mark(z1)), mark(x2))), MARK(x0))
   MARK(sel(x0, sel(cons(z0, z1), x2))) -> c7(A__SEL(mark(x0), a__sel(cons(mark(z0), z1), mark(x2))), MARK(x0))
   MARK(sel(x0, sel(s(z0), x2))) -> c7(A__SEL(mark(x0), a__sel(s(mark(z0)), mark(x2))), MARK(x0))
   MARK(sel(x0, sel(0, x2))) -> c7(A__SEL(mark(x0), a__sel(0, mark(x2))), MARK(x0))
   MARK(sel(from(z0), sel(x1, x2))) -> c7(A__SEL(a__from(mark(z0)), a__sel(mark(x1), mark(x2))), MARK(from(z0)))
   MARK(sel(sel(z0, z1), sel(x1, x2))) -> c7(A__SEL(a__sel(mark(z0), mark(z1)), a__sel(mark(x1), mark(x2))), MARK(sel(z0, z1)))
   MARK(sel(s(z0), sel(x1, x2))) -> c7(A__SEL(s(mark(z0)), a__sel(mark(x1), mark(x2))), MARK(s(z0)))
   MARK(sel(x0, sel(x1, x2))) -> c7(MARK(x0))
   MARK(sel(cons(z0, z1), sel(x1, x2))) -> c7(MARK(cons(z0, z1)))
   MARK(sel(0, sel(x1, x2))) -> c7(A__SEL(0, a__sel(mark(x1), mark(x2))))
   MARK(sel(x0, cons(from(z0), x2))) -> c7(A__SEL(mark(x0), cons(a__from(mark(z0)), x2)), MARK(x0))
   MARK(sel(x0, cons(sel(z0, z1), x2))) -> c7(A__SEL(mark(x0), cons(a__sel(mark(z0), mark(z1)), x2)), MARK(x0))
   MARK(sel(x0, cons(cons(z0, z1), x2))) -> c7(A__SEL(mark(x0), cons(cons(mark(z0), z1), x2)), MARK(x0))
   MARK(sel(x0, cons(s(z0), x2))) -> c7(A__SEL(mark(x0), cons(s(mark(z0)), x2)), MARK(x0))
   MARK(sel(x0, cons(0, x2))) -> c7(A__SEL(mark(x0), cons(0, x2)), MARK(x0))
   MARK(sel(from(z0), cons(x1, x2))) -> c7(A__SEL(a__from(mark(z0)), cons(mark(x1), x2)), MARK(from(z0)))
   MARK(sel(sel(z0, z1), cons(x1, x2))) -> c7(A__SEL(a__sel(mark(z0), mark(z1)), cons(mark(x1), x2)), MARK(sel(z0, z1)))
   MARK(sel(s(z0), cons(x1, x2))) -> c7(A__SEL(s(mark(z0)), cons(mark(x1), x2)), MARK(s(z0)))
   MARK(sel(cons(z0, z1), cons(x1, x2))) -> c7(MARK(cons(z0, z1)))
   MARK(sel(0, cons(x1, x2))) -> c7(A__SEL(0, cons(mark(x1), x2)))
K tuples:none
Defined Rule Symbols:   a__from_1, a__sel_2, mark_1

Defined Pair Symbols:   A__FROM_1, A__SEL_2, MARK_1

Compound Symbols:   c_1, c2_1, c6_2, c9_1, c10_1, c3_1, c4_1, c7_2, c7_1, c8_2, c8_1, c3_2, c4_2


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

(153) CdtNarrowingProof (BOTH BOUNDS(ID, ID))
Use narrowing to replace MARK(sel(from(z0), x1)) -> c7(A__SEL(a__from(mark(z0)), mark(x1)), MARK(from(z0))) by 
   MARK(sel(from(x0), from(z0))) -> c7(A__SEL(a__from(mark(x0)), a__from(mark(z0))), MARK(from(x0)))
   MARK(sel(from(x0), sel(z0, z1))) -> c7(A__SEL(a__from(mark(x0)), a__sel(mark(z0), mark(z1))), MARK(from(x0)))
   MARK(sel(from(x0), cons(z0, z1))) -> c7(A__SEL(a__from(mark(x0)), cons(mark(z0), z1)), MARK(from(x0)))
   MARK(sel(from(x0), s(z0))) -> c7(A__SEL(a__from(mark(x0)), s(mark(z0))), MARK(from(x0)))
   MARK(sel(from(x0), 0)) -> c7(A__SEL(a__from(mark(x0)), 0), MARK(from(x0)))
   MARK(sel(from(x0), x1)) -> c7(A__SEL(cons(mark(mark(x0)), from(s(mark(x0)))), mark(x1)), MARK(from(x0)))
   MARK(sel(from(x0), x1)) -> c7(A__SEL(from(mark(x0)), mark(x1)), MARK(from(x0)))
   MARK(sel(from(from(z0)), x1)) -> c7(A__SEL(a__from(a__from(mark(z0))), mark(x1)), MARK(from(from(z0))))
   MARK(sel(from(sel(z0, z1)), x1)) -> c7(A__SEL(a__from(a__sel(mark(z0), mark(z1))), mark(x1)), MARK(from(sel(z0, z1))))
   MARK(sel(from(cons(z0, z1)), x1)) -> c7(A__SEL(a__from(cons(mark(z0), z1)), mark(x1)), MARK(from(cons(z0, z1))))
   MARK(sel(from(s(z0)), x1)) -> c7(A__SEL(a__from(s(mark(z0))), mark(x1)), MARK(from(s(z0))))
   MARK(sel(from(0), x1)) -> c7(A__SEL(a__from(0), mark(x1)), MARK(from(0)))
   MARK(sel(from(x0), x1)) -> c7(MARK(from(x0)))

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

(154)
Obligation:
Complexity Dependency Tuples Problem

Rules:
   a__from(z0) -> cons(mark(z0), from(s(z0)))
   a__from(z0) -> from(z0)
   a__sel(0, cons(z0, z1)) -> mark(z0)
   a__sel(s(z0), cons(z1, z2)) -> a__sel(mark(z0), mark(z2))
   a__sel(z0, z1) -> sel(z0, z1)
   mark(from(z0)) -> a__from(mark(z0))
   mark(sel(z0, z1)) -> a__sel(mark(z0), mark(z1))
   mark(cons(z0, z1)) -> cons(mark(z0), z1)
   mark(s(z0)) -> s(mark(z0))
   mark(0) -> 0
Tuples:
   A__FROM(z0) -> c(MARK(z0))
   A__SEL(0, cons(z0, z1)) -> c2(MARK(z0))
   MARK(from(z0)) -> c6(A__FROM(mark(z0)), MARK(z0))
   MARK(cons(z0, z1)) -> c9(MARK(z0))
   MARK(s(z0)) -> c10(MARK(z0))
   A__SEL(s(x0), cons(x1, s(z0))) -> c3(MARK(x0))
   A__SEL(s(x0), cons(x1, 0)) -> c3(MARK(x0))
   A__SEL(s(cons(z0, z1)), cons(x1, x2)) -> c3(MARK(cons(z0, z1)))
   A__SEL(s(x0), cons(x1, s(z0))) -> c4(MARK(s(z0)))
   A__SEL(s(cons(z0, z1)), cons(x1, x2)) -> c4(MARK(x2))
   MARK(sel(sel(z0, z1), x1)) -> c7(A__SEL(a__sel(mark(z0), mark(z1)), mark(x1)), MARK(sel(z0, z1)))
   MARK(sel(s(z0), x1)) -> c7(A__SEL(s(mark(z0)), mark(x1)), MARK(s(z0)))
   MARK(sel(x0, s(z0))) -> c7(MARK(x0))
   MARK(sel(x0, 0)) -> c7(MARK(x0))
   MARK(sel(cons(z0, z1), x1)) -> c7(MARK(cons(z0, z1)))
   MARK(sel(0, x1)) -> c7(A__SEL(0, mark(x1)))
   MARK(sel(x0, from(z0))) -> c8(A__SEL(mark(x0), a__from(mark(z0))), MARK(from(z0)))
   MARK(sel(x0, sel(z0, z1))) -> c8(A__SEL(mark(x0), a__sel(mark(z0), mark(z1))), MARK(sel(z0, z1)))
   MARK(sel(x0, cons(z0, z1))) -> c8(A__SEL(mark(x0), cons(mark(z0), z1)), MARK(cons(z0, z1)))
   MARK(sel(from(z0), x1)) -> c8(A__SEL(a__from(mark(z0)), mark(x1)), MARK(x1))
   MARK(sel(sel(z0, z1), x1)) -> c8(A__SEL(a__sel(mark(z0), mark(z1)), mark(x1)), MARK(x1))
   MARK(sel(s(z0), x1)) -> c8(A__SEL(s(mark(z0)), mark(x1)), MARK(x1))
   MARK(sel(0, x1)) -> c8(A__SEL(0, mark(x1)), MARK(x1))
   MARK(sel(x0, s(z0))) -> c8(MARK(s(z0)))
   MARK(sel(cons(z0, z1), x1)) -> c8(MARK(x1))
   A__SEL(s(x0), cons(x1, from(x2))) -> c3(A__SEL(mark(x0), cons(mark(mark(x2)), from(s(mark(x2))))), MARK(x0))
   A__SEL(s(x0), cons(x1, from(from(z0)))) -> c3(A__SEL(mark(x0), a__from(a__from(mark(z0)))), MARK(x0))
   A__SEL(s(x0), cons(x1, from(sel(z0, z1)))) -> c3(A__SEL(mark(x0), a__from(a__sel(mark(z0), mark(z1)))), MARK(x0))
   A__SEL(s(x0), cons(x1, from(cons(z0, z1)))) -> c3(A__SEL(mark(x0), a__from(cons(mark(z0), z1))), MARK(x0))
   A__SEL(s(x0), cons(x1, from(s(z0)))) -> c3(A__SEL(mark(x0), a__from(s(mark(z0)))), MARK(x0))
   A__SEL(s(x0), cons(x1, from(0))) -> c3(A__SEL(mark(x0), a__from(0)), MARK(x0))
   A__SEL(s(from(z0)), cons(x1, from(x2))) -> c3(A__SEL(a__from(mark(z0)), a__from(mark(x2))), MARK(from(z0)))
   A__SEL(s(sel(z0, z1)), cons(x1, from(x2))) -> c3(A__SEL(a__sel(mark(z0), mark(z1)), a__from(mark(x2))), MARK(sel(z0, z1)))
   A__SEL(s(s(z0)), cons(x1, from(x2))) -> c3(A__SEL(s(mark(z0)), a__from(mark(x2))), MARK(s(z0)))
   A__SEL(s(x0), cons(x1, from(x2))) -> c3(MARK(x0))
   A__SEL(s(cons(z0, z1)), cons(x1, from(x2))) -> c3(MARK(cons(z0, z1)))
   A__SEL(s(0), cons(x1, from(x2))) -> c3(A__SEL(0, a__from(mark(x2))))
   A__SEL(s(x0), cons(x1, sel(x2, from(z0)))) -> c3(A__SEL(mark(x0), a__sel(mark(x2), a__from(mark(z0)))), MARK(x0))
   A__SEL(s(x0), cons(x1, sel(x2, sel(z0, z1)))) -> c3(A__SEL(mark(x0), a__sel(mark(x2), a__sel(mark(z0), mark(z1)))), MARK(x0))
   A__SEL(s(x0), cons(x1, sel(x2, cons(z0, z1)))) -> c3(A__SEL(mark(x0), a__sel(mark(x2), cons(mark(z0), z1))), MARK(x0))
   A__SEL(s(x0), cons(x1, sel(x2, s(z0)))) -> c3(A__SEL(mark(x0), a__sel(mark(x2), s(mark(z0)))), MARK(x0))
   A__SEL(s(x0), cons(x1, sel(x2, 0))) -> c3(A__SEL(mark(x0), a__sel(mark(x2), 0)), MARK(x0))
   A__SEL(s(x0), cons(x1, sel(from(z0), x3))) -> c3(A__SEL(mark(x0), a__sel(a__from(mark(z0)), mark(x3))), MARK(x0))
   A__SEL(s(x0), cons(x1, sel(sel(z0, z1), x3))) -> c3(A__SEL(mark(x0), a__sel(a__sel(mark(z0), mark(z1)), mark(x3))), MARK(x0))
   A__SEL(s(x0), cons(x1, sel(cons(z0, z1), x3))) -> c3(A__SEL(mark(x0), a__sel(cons(mark(z0), z1), mark(x3))), MARK(x0))
   A__SEL(s(x0), cons(x1, sel(s(z0), x3))) -> c3(A__SEL(mark(x0), a__sel(s(mark(z0)), mark(x3))), MARK(x0))
   A__SEL(s(x0), cons(x1, sel(0, x3))) -> c3(A__SEL(mark(x0), a__sel(0, mark(x3))), MARK(x0))
   A__SEL(s(from(z0)), cons(x1, sel(x2, x3))) -> c3(A__SEL(a__from(mark(z0)), a__sel(mark(x2), mark(x3))), MARK(from(z0)))
   A__SEL(s(sel(z0, z1)), cons(x1, sel(x2, x3))) -> c3(A__SEL(a__sel(mark(z0), mark(z1)), a__sel(mark(x2), mark(x3))), MARK(sel(z0, z1)))
   A__SEL(s(s(z0)), cons(x1, sel(x2, x3))) -> c3(A__SEL(s(mark(z0)), a__sel(mark(x2), mark(x3))), MARK(s(z0)))
   A__SEL(s(x0), cons(x1, sel(x2, x3))) -> c3(MARK(x0))
   A__SEL(s(cons(z0, z1)), cons(x1, sel(x2, x3))) -> c3(MARK(cons(z0, z1)))
   A__SEL(s(0), cons(x1, sel(x2, x3))) -> c3(A__SEL(0, a__sel(mark(x2), mark(x3))))
   A__SEL(s(x0), cons(x1, cons(from(z0), x3))) -> c3(A__SEL(mark(x0), cons(a__from(mark(z0)), x3)), MARK(x0))
   A__SEL(s(x0), cons(x1, cons(sel(z0, z1), x3))) -> c3(A__SEL(mark(x0), cons(a__sel(mark(z0), mark(z1)), x3)), MARK(x0))
   A__SEL(s(x0), cons(x1, cons(cons(z0, z1), x3))) -> c3(A__SEL(mark(x0), cons(cons(mark(z0), z1), x3)), MARK(x0))
   A__SEL(s(x0), cons(x1, cons(s(z0), x3))) -> c3(A__SEL(mark(x0), cons(s(mark(z0)), x3)), MARK(x0))
   A__SEL(s(x0), cons(x1, cons(0, x3))) -> c3(A__SEL(mark(x0), cons(0, x3)), MARK(x0))
   A__SEL(s(from(z0)), cons(x1, cons(x2, x3))) -> c3(A__SEL(a__from(mark(z0)), cons(mark(x2), x3)), MARK(from(z0)))
   A__SEL(s(sel(z0, z1)), cons(x1, cons(x2, x3))) -> c3(A__SEL(a__sel(mark(z0), mark(z1)), cons(mark(x2), x3)), MARK(sel(z0, z1)))
   A__SEL(s(s(z0)), cons(x1, cons(x2, x3))) -> c3(A__SEL(s(mark(z0)), cons(mark(x2), x3)), MARK(s(z0)))
   A__SEL(s(cons(z0, z1)), cons(x1, cons(x2, x3))) -> c3(MARK(cons(z0, z1)))
   A__SEL(s(0), cons(x1, cons(x2, x3))) -> c3(A__SEL(0, cons(mark(x2), x3)))
   A__SEL(s(from(from(z0))), cons(x1, x2)) -> c3(A__SEL(a__from(a__from(mark(z0))), mark(x2)), MARK(from(from(z0))))
   A__SEL(s(from(sel(z0, z1))), cons(x1, x2)) -> c3(A__SEL(a__from(a__sel(mark(z0), mark(z1))), mark(x2)), MARK(from(sel(z0, z1))))
   A__SEL(s(from(cons(z0, z1))), cons(x1, x2)) -> c3(A__SEL(a__from(cons(mark(z0), z1)), mark(x2)), MARK(from(cons(z0, z1))))
   A__SEL(s(from(s(z0))), cons(x1, x2)) -> c3(A__SEL(a__from(s(mark(z0))), mark(x2)), MARK(from(s(z0))))
   A__SEL(s(from(0)), cons(x1, x2)) -> c3(A__SEL(a__from(0), mark(x2)), MARK(from(0)))
   A__SEL(s(from(x0)), cons(x1, x2)) -> c3(MARK(from(x0)))
   A__SEL(s(from(x0)), cons(x1, s(z0))) -> c3(MARK(from(x0)))
   A__SEL(s(from(x0)), cons(x1, 0)) -> c3(MARK(from(x0)))
   A__SEL(s(sel(x0, from(z0))), cons(x2, x3)) -> c3(A__SEL(a__sel(mark(x0), a__from(mark(z0))), mark(x3)), MARK(sel(x0, from(z0))))
   A__SEL(s(sel(x0, sel(z0, z1))), cons(x2, x3)) -> c3(A__SEL(a__sel(mark(x0), a__sel(mark(z0), mark(z1))), mark(x3)), MARK(sel(x0, sel(z0, z1))))
   A__SEL(s(sel(x0, cons(z0, z1))), cons(x2, x3)) -> c3(A__SEL(a__sel(mark(x0), cons(mark(z0), z1)), mark(x3)), MARK(sel(x0, cons(z0, z1))))
   A__SEL(s(sel(x0, s(z0))), cons(x2, x3)) -> c3(A__SEL(a__sel(mark(x0), s(mark(z0))), mark(x3)), MARK(sel(x0, s(z0))))
   A__SEL(s(sel(x0, 0)), cons(x2, x3)) -> c3(A__SEL(a__sel(mark(x0), 0), mark(x3)), MARK(sel(x0, 0)))
   A__SEL(s(sel(from(z0), x1)), cons(x2, x3)) -> c3(A__SEL(a__sel(a__from(mark(z0)), mark(x1)), mark(x3)), MARK(sel(from(z0), x1)))
   A__SEL(s(sel(sel(z0, z1), x1)), cons(x2, x3)) -> c3(A__SEL(a__sel(a__sel(mark(z0), mark(z1)), mark(x1)), mark(x3)), MARK(sel(sel(z0, z1), x1)))
   A__SEL(s(sel(cons(z0, z1), x1)), cons(x2, x3)) -> c3(A__SEL(a__sel(cons(mark(z0), z1), mark(x1)), mark(x3)), MARK(sel(cons(z0, z1), x1)))
   A__SEL(s(sel(s(z0), x1)), cons(x2, x3)) -> c3(A__SEL(a__sel(s(mark(z0)), mark(x1)), mark(x3)), MARK(sel(s(z0), x1)))
   A__SEL(s(sel(0, x1)), cons(x2, x3)) -> c3(A__SEL(a__sel(0, mark(x1)), mark(x3)), MARK(sel(0, x1)))
   A__SEL(s(sel(x0, x1)), cons(x2, s(z0))) -> c3(MARK(sel(x0, x1)))
   A__SEL(s(sel(x0, x1)), cons(x2, 0)) -> c3(MARK(sel(x0, x1)))
   A__SEL(s(sel(x0, x1)), cons(x2, x3)) -> c3(MARK(sel(x0, x1)))
   A__SEL(s(s(from(z0))), cons(x1, x2)) -> c3(A__SEL(s(a__from(mark(z0))), mark(x2)), MARK(s(from(z0))))
   A__SEL(s(s(sel(z0, z1))), cons(x1, x2)) -> c3(A__SEL(s(a__sel(mark(z0), mark(z1))), mark(x2)), MARK(s(sel(z0, z1))))
   A__SEL(s(s(cons(z0, z1))), cons(x1, x2)) -> c3(A__SEL(s(cons(mark(z0), z1)), mark(x2)), MARK(s(cons(z0, z1))))
   A__SEL(s(s(s(z0))), cons(x1, x2)) -> c3(A__SEL(s(s(mark(z0))), mark(x2)), MARK(s(s(z0))))
   A__SEL(s(s(0)), cons(x1, x2)) -> c3(A__SEL(s(0), mark(x2)), MARK(s(0)))
   A__SEL(s(s(x0)), cons(x1, x2)) -> c3(MARK(s(x0)))
   A__SEL(s(s(x0)), cons(x1, s(z0))) -> c3(MARK(s(x0)))
   A__SEL(s(s(x0)), cons(x1, 0)) -> c3(MARK(s(x0)))
   A__SEL(s(x0), cons(x1, from(x2))) -> c4(A__SEL(mark(x0), cons(mark(mark(x2)), from(s(mark(x2))))), MARK(from(x2)))
   A__SEL(s(x0), cons(x1, from(from(z0)))) -> c4(A__SEL(mark(x0), a__from(a__from(mark(z0)))), MARK(from(from(z0))))
   A__SEL(s(x0), cons(x1, from(sel(z0, z1)))) -> c4(A__SEL(mark(x0), a__from(a__sel(mark(z0), mark(z1)))), MARK(from(sel(z0, z1))))
   A__SEL(s(x0), cons(x1, from(cons(z0, z1)))) -> c4(A__SEL(mark(x0), a__from(cons(mark(z0), z1))), MARK(from(cons(z0, z1))))
   A__SEL(s(x0), cons(x1, from(s(z0)))) -> c4(A__SEL(mark(x0), a__from(s(mark(z0)))), MARK(from(s(z0))))
   A__SEL(s(x0), cons(x1, from(0))) -> c4(A__SEL(mark(x0), a__from(0)), MARK(from(0)))
   A__SEL(s(from(z0)), cons(x1, from(x2))) -> c4(A__SEL(a__from(mark(z0)), a__from(mark(x2))), MARK(from(x2)))
   A__SEL(s(sel(z0, z1)), cons(x1, from(x2))) -> c4(A__SEL(a__sel(mark(z0), mark(z1)), a__from(mark(x2))), MARK(from(x2)))
   A__SEL(s(s(z0)), cons(x1, from(x2))) -> c4(A__SEL(s(mark(z0)), a__from(mark(x2))), MARK(from(x2)))
   A__SEL(s(0), cons(x1, from(x2))) -> c4(A__SEL(0, a__from(mark(x2))), MARK(from(x2)))
   A__SEL(s(x0), cons(x1, from(x2))) -> c4(MARK(from(x2)))
   A__SEL(s(cons(z0, z1)), cons(x1, from(x2))) -> c4(MARK(from(x2)))
   A__SEL(s(x0), cons(x1, sel(x2, from(z0)))) -> c4(A__SEL(mark(x0), a__sel(mark(x2), a__from(mark(z0)))), MARK(sel(x2, from(z0))))
   A__SEL(s(x0), cons(x1, sel(x2, sel(z0, z1)))) -> c4(A__SEL(mark(x0), a__sel(mark(x2), a__sel(mark(z0), mark(z1)))), MARK(sel(x2, sel(z0, z1))))
   A__SEL(s(x0), cons(x1, sel(x2, cons(z0, z1)))) -> c4(A__SEL(mark(x0), a__sel(mark(x2), cons(mark(z0), z1))), MARK(sel(x2, cons(z0, z1))))
   A__SEL(s(x0), cons(x1, sel(x2, s(z0)))) -> c4(A__SEL(mark(x0), a__sel(mark(x2), s(mark(z0)))), MARK(sel(x2, s(z0))))
   A__SEL(s(x0), cons(x1, sel(x2, 0))) -> c4(A__SEL(mark(x0), a__sel(mark(x2), 0)), MARK(sel(x2, 0)))
   A__SEL(s(x0), cons(x1, sel(from(z0), x3))) -> c4(A__SEL(mark(x0), a__sel(a__from(mark(z0)), mark(x3))), MARK(sel(from(z0), x3)))
   A__SEL(s(x0), cons(x1, sel(sel(z0, z1), x3))) -> c4(A__SEL(mark(x0), a__sel(a__sel(mark(z0), mark(z1)), mark(x3))), MARK(sel(sel(z0, z1), x3)))
   A__SEL(s(x0), cons(x1, sel(cons(z0, z1), x3))) -> c4(A__SEL(mark(x0), a__sel(cons(mark(z0), z1), mark(x3))), MARK(sel(cons(z0, z1), x3)))
   A__SEL(s(x0), cons(x1, sel(s(z0), x3))) -> c4(A__SEL(mark(x0), a__sel(s(mark(z0)), mark(x3))), MARK(sel(s(z0), x3)))
   A__SEL(s(x0), cons(x1, sel(0, x3))) -> c4(A__SEL(mark(x0), a__sel(0, mark(x3))), MARK(sel(0, x3)))
   A__SEL(s(from(z0)), cons(x1, sel(x2, x3))) -> c4(A__SEL(a__from(mark(z0)), a__sel(mark(x2), mark(x3))), MARK(sel(x2, x3)))
   A__SEL(s(sel(z0, z1)), cons(x1, sel(x2, x3))) -> c4(A__SEL(a__sel(mark(z0), mark(z1)), a__sel(mark(x2), mark(x3))), MARK(sel(x2, x3)))
   A__SEL(s(s(z0)), cons(x1, sel(x2, x3))) -> c4(A__SEL(s(mark(z0)), a__sel(mark(x2), mark(x3))), MARK(sel(x2, x3)))
   A__SEL(s(0), cons(x1, sel(x2, x3))) -> c4(A__SEL(0, a__sel(mark(x2), mark(x3))), MARK(sel(x2, x3)))
   A__SEL(s(x0), cons(x1, sel(x2, x3))) -> c4(MARK(sel(x2, x3)))
   A__SEL(s(cons(z0, z1)), cons(x1, sel(x2, x3))) -> c4(MARK(sel(x2, x3)))
   A__SEL(s(x0), cons(x1, cons(from(z0), x3))) -> c4(A__SEL(mark(x0), cons(a__from(mark(z0)), x3)), MARK(cons(from(z0), x3)))
   A__SEL(s(x0), cons(x1, cons(sel(z0, z1), x3))) -> c4(A__SEL(mark(x0), cons(a__sel(mark(z0), mark(z1)), x3)), MARK(cons(sel(z0, z1), x3)))
   A__SEL(s(x0), cons(x1, cons(cons(z0, z1), x3))) -> c4(A__SEL(mark(x0), cons(cons(mark(z0), z1), x3)), MARK(cons(cons(z0, z1), x3)))
   A__SEL(s(x0), cons(x1, cons(s(z0), x3))) -> c4(A__SEL(mark(x0), cons(s(mark(z0)), x3)), MARK(cons(s(z0), x3)))
   A__SEL(s(x0), cons(x1, cons(0, x3))) -> c4(A__SEL(mark(x0), cons(0, x3)), MARK(cons(0, x3)))
   A__SEL(s(from(z0)), cons(x1, cons(x2, x3))) -> c4(A__SEL(a__from(mark(z0)), cons(mark(x2), x3)), MARK(cons(x2, x3)))
   A__SEL(s(sel(z0, z1)), cons(x1, cons(x2, x3))) -> c4(A__SEL(a__sel(mark(z0), mark(z1)), cons(mark(x2), x3)), MARK(cons(x2, x3)))
   A__SEL(s(s(z0)), cons(x1, cons(x2, x3))) -> c4(A__SEL(s(mark(z0)), cons(mark(x2), x3)), MARK(cons(x2, x3)))
   A__SEL(s(0), cons(x1, cons(x2, x3))) -> c4(A__SEL(0, cons(mark(x2), x3)), MARK(cons(x2, x3)))
   A__SEL(s(x0), cons(x1, cons(x2, x3))) -> c4(MARK(cons(x2, x3)))
   A__SEL(s(cons(z0, z1)), cons(x1, cons(x2, x3))) -> c4(MARK(cons(x2, x3)))
   A__SEL(s(from(from(z0))), cons(x1, x2)) -> c4(A__SEL(a__from(a__from(mark(z0))), mark(x2)), MARK(x2))
   A__SEL(s(from(sel(z0, z1))), cons(x1, x2)) -> c4(A__SEL(a__from(a__sel(mark(z0), mark(z1))), mark(x2)), MARK(x2))
   A__SEL(s(from(cons(z0, z1))), cons(x1, x2)) -> c4(A__SEL(a__from(cons(mark(z0), z1)), mark(x2)), MARK(x2))
   A__SEL(s(from(s(z0))), cons(x1, x2)) -> c4(A__SEL(a__from(s(mark(z0))), mark(x2)), MARK(x2))
   A__SEL(s(from(0)), cons(x1, x2)) -> c4(A__SEL(a__from(0), mark(x2)), MARK(x2))
   A__SEL(s(from(x0)), cons(x1, s(z0))) -> c4(MARK(s(z0)))
   A__SEL(s(from(x0)), cons(x1, x2)) -> c4(MARK(x2))
   A__SEL(s(sel(x0, from(z0))), cons(x2, x3)) -> c4(A__SEL(a__sel(mark(x0), a__from(mark(z0))), mark(x3)), MARK(x3))
   A__SEL(s(sel(x0, sel(z0, z1))), cons(x2, x3)) -> c4(A__SEL(a__sel(mark(x0), a__sel(mark(z0), mark(z1))), mark(x3)), MARK(x3))
   A__SEL(s(sel(x0, cons(z0, z1))), cons(x2, x3)) -> c4(A__SEL(a__sel(mark(x0), cons(mark(z0), z1)), mark(x3)), MARK(x3))
   A__SEL(s(sel(x0, s(z0))), cons(x2, x3)) -> c4(A__SEL(a__sel(mark(x0), s(mark(z0))), mark(x3)), MARK(x3))
   A__SEL(s(sel(x0, 0)), cons(x2, x3)) -> c4(A__SEL(a__sel(mark(x0), 0), mark(x3)), MARK(x3))
   A__SEL(s(sel(from(z0), x1)), cons(x2, x3)) -> c4(A__SEL(a__sel(a__from(mark(z0)), mark(x1)), mark(x3)), MARK(x3))
   A__SEL(s(sel(sel(z0, z1), x1)), cons(x2, x3)) -> c4(A__SEL(a__sel(a__sel(mark(z0), mark(z1)), mark(x1)), mark(x3)), MARK(x3))
   A__SEL(s(sel(cons(z0, z1), x1)), cons(x2, x3)) -> c4(A__SEL(a__sel(cons(mark(z0), z1), mark(x1)), mark(x3)), MARK(x3))
   A__SEL(s(sel(s(z0), x1)), cons(x2, x3)) -> c4(A__SEL(a__sel(s(mark(z0)), mark(x1)), mark(x3)), MARK(x3))
   A__SEL(s(sel(0, x1)), cons(x2, x3)) -> c4(A__SEL(a__sel(0, mark(x1)), mark(x3)), MARK(x3))
   A__SEL(s(sel(x0, x1)), cons(x2, s(z0))) -> c4(MARK(s(z0)))
   A__SEL(s(sel(x0, x1)), cons(x2, x3)) -> c4(MARK(x3))
   A__SEL(s(s(from(z0))), cons(x1, x2)) -> c4(A__SEL(s(a__from(mark(z0))), mark(x2)), MARK(x2))
   A__SEL(s(s(sel(z0, z1))), cons(x1, x2)) -> c4(A__SEL(s(a__sel(mark(z0), mark(z1))), mark(x2)), MARK(x2))
   A__SEL(s(s(cons(z0, z1))), cons(x1, x2)) -> c4(A__SEL(s(cons(mark(z0), z1)), mark(x2)), MARK(x2))
   A__SEL(s(s(s(z0))), cons(x1, x2)) -> c4(A__SEL(s(s(mark(z0))), mark(x2)), MARK(x2))
   A__SEL(s(s(0)), cons(x1, x2)) -> c4(A__SEL(s(0), mark(x2)), MARK(x2))
   A__SEL(s(s(x0)), cons(x1, s(z0))) -> c4(MARK(s(z0)))
   A__SEL(s(0), cons(x0, s(z0))) -> c4(MARK(s(z0)))
   MARK(sel(x0, from(x1))) -> c7(A__SEL(mark(x0), cons(mark(mark(x1)), from(s(mark(x1))))), MARK(x0))
   MARK(sel(x0, from(from(z0)))) -> c7(A__SEL(mark(x0), a__from(a__from(mark(z0)))), MARK(x0))
   MARK(sel(x0, from(sel(z0, z1)))) -> c7(A__SEL(mark(x0), a__from(a__sel(mark(z0), mark(z1)))), MARK(x0))
   MARK(sel(x0, from(cons(z0, z1)))) -> c7(A__SEL(mark(x0), a__from(cons(mark(z0), z1))), MARK(x0))
   MARK(sel(x0, from(s(z0)))) -> c7(A__SEL(mark(x0), a__from(s(mark(z0)))), MARK(x0))
   MARK(sel(x0, from(0))) -> c7(A__SEL(mark(x0), a__from(0)), MARK(x0))
   MARK(sel(from(z0), from(x1))) -> c7(A__SEL(a__from(mark(z0)), a__from(mark(x1))), MARK(from(z0)))
   MARK(sel(sel(z0, z1), from(x1))) -> c7(A__SEL(a__sel(mark(z0), mark(z1)), a__from(mark(x1))), MARK(sel(z0, z1)))
   MARK(sel(s(z0), from(x1))) -> c7(A__SEL(s(mark(z0)), a__from(mark(x1))), MARK(s(z0)))
   MARK(sel(x0, from(x1))) -> c7(MARK(x0))
   MARK(sel(cons(z0, z1), from(x1))) -> c7(MARK(cons(z0, z1)))
   MARK(sel(0, from(x1))) -> c7(A__SEL(0, a__from(mark(x1))))
   MARK(sel(x0, sel(x1, from(z0)))) -> c7(A__SEL(mark(x0), a__sel(mark(x1), a__from(mark(z0)))), MARK(x0))
   MARK(sel(x0, sel(x1, sel(z0, z1)))) -> c7(A__SEL(mark(x0), a__sel(mark(x1), a__sel(mark(z0), mark(z1)))), MARK(x0))
   MARK(sel(x0, sel(x1, cons(z0, z1)))) -> c7(A__SEL(mark(x0), a__sel(mark(x1), cons(mark(z0), z1))), MARK(x0))
   MARK(sel(x0, sel(x1, s(z0)))) -> c7(A__SEL(mark(x0), a__sel(mark(x1), s(mark(z0)))), MARK(x0))
   MARK(sel(x0, sel(x1, 0))) -> c7(A__SEL(mark(x0), a__sel(mark(x1), 0)), MARK(x0))
   MARK(sel(x0, sel(from(z0), x2))) -> c7(A__SEL(mark(x0), a__sel(a__from(mark(z0)), mark(x2))), MARK(x0))
   MARK(sel(x0, sel(sel(z0, z1), x2))) -> c7(A__SEL(mark(x0), a__sel(a__sel(mark(z0), mark(z1)), mark(x2))), MARK(x0))
   MARK(sel(x0, sel(cons(z0, z1), x2))) -> c7(A__SEL(mark(x0), a__sel(cons(mark(z0), z1), mark(x2))), MARK(x0))
   MARK(sel(x0, sel(s(z0), x2))) -> c7(A__SEL(mark(x0), a__sel(s(mark(z0)), mark(x2))), MARK(x0))
   MARK(sel(x0, sel(0, x2))) -> c7(A__SEL(mark(x0), a__sel(0, mark(x2))), MARK(x0))
   MARK(sel(from(z0), sel(x1, x2))) -> c7(A__SEL(a__from(mark(z0)), a__sel(mark(x1), mark(x2))), MARK(from(z0)))
   MARK(sel(sel(z0, z1), sel(x1, x2))) -> c7(A__SEL(a__sel(mark(z0), mark(z1)), a__sel(mark(x1), mark(x2))), MARK(sel(z0, z1)))
   MARK(sel(s(z0), sel(x1, x2))) -> c7(A__SEL(s(mark(z0)), a__sel(mark(x1), mark(x2))), MARK(s(z0)))
   MARK(sel(x0, sel(x1, x2))) -> c7(MARK(x0))
   MARK(sel(cons(z0, z1), sel(x1, x2))) -> c7(MARK(cons(z0, z1)))
   MARK(sel(0, sel(x1, x2))) -> c7(A__SEL(0, a__sel(mark(x1), mark(x2))))
   MARK(sel(x0, cons(from(z0), x2))) -> c7(A__SEL(mark(x0), cons(a__from(mark(z0)), x2)), MARK(x0))
   MARK(sel(x0, cons(sel(z0, z1), x2))) -> c7(A__SEL(mark(x0), cons(a__sel(mark(z0), mark(z1)), x2)), MARK(x0))
   MARK(sel(x0, cons(cons(z0, z1), x2))) -> c7(A__SEL(mark(x0), cons(cons(mark(z0), z1), x2)), MARK(x0))
   MARK(sel(x0, cons(s(z0), x2))) -> c7(A__SEL(mark(x0), cons(s(mark(z0)), x2)), MARK(x0))
   MARK(sel(x0, cons(0, x2))) -> c7(A__SEL(mark(x0), cons(0, x2)), MARK(x0))
   MARK(sel(from(z0), cons(x1, x2))) -> c7(A__SEL(a__from(mark(z0)), cons(mark(x1), x2)), MARK(from(z0)))
   MARK(sel(sel(z0, z1), cons(x1, x2))) -> c7(A__SEL(a__sel(mark(z0), mark(z1)), cons(mark(x1), x2)), MARK(sel(z0, z1)))
   MARK(sel(s(z0), cons(x1, x2))) -> c7(A__SEL(s(mark(z0)), cons(mark(x1), x2)), MARK(s(z0)))
   MARK(sel(cons(z0, z1), cons(x1, x2))) -> c7(MARK(cons(z0, z1)))
   MARK(sel(0, cons(x1, x2))) -> c7(A__SEL(0, cons(mark(x1), x2)))
   MARK(sel(from(x0), s(z0))) -> c7(A__SEL(a__from(mark(x0)), s(mark(z0))), MARK(from(x0)))
   MARK(sel(from(x0), 0)) -> c7(A__SEL(a__from(mark(x0)), 0), MARK(from(x0)))
   MARK(sel(from(x0), x1)) -> c7(A__SEL(cons(mark(mark(x0)), from(s(mark(x0)))), mark(x1)), MARK(from(x0)))
   MARK(sel(from(x0), x1)) -> c7(A__SEL(from(mark(x0)), mark(x1)), MARK(from(x0)))
   MARK(sel(from(from(z0)), x1)) -> c7(A__SEL(a__from(a__from(mark(z0))), mark(x1)), MARK(from(from(z0))))
   MARK(sel(from(sel(z0, z1)), x1)) -> c7(A__SEL(a__from(a__sel(mark(z0), mark(z1))), mark(x1)), MARK(from(sel(z0, z1))))
   MARK(sel(from(cons(z0, z1)), x1)) -> c7(A__SEL(a__from(cons(mark(z0), z1)), mark(x1)), MARK(from(cons(z0, z1))))
   MARK(sel(from(s(z0)), x1)) -> c7(A__SEL(a__from(s(mark(z0))), mark(x1)), MARK(from(s(z0))))
   MARK(sel(from(0), x1)) -> c7(A__SEL(a__from(0), mark(x1)), MARK(from(0)))
   MARK(sel(from(x0), x1)) -> c7(MARK(from(x0)))
S tuples:
   A__FROM(z0) -> c(MARK(z0))
   A__SEL(0, cons(z0, z1)) -> c2(MARK(z0))
   MARK(from(z0)) -> c6(A__FROM(mark(z0)), MARK(z0))
   MARK(cons(z0, z1)) -> c9(MARK(z0))
   MARK(s(z0)) -> c10(MARK(z0))
   A__SEL(s(x0), cons(x1, s(z0))) -> c3(MARK(x0))
   A__SEL(s(x0), cons(x1, 0)) -> c3(MARK(x0))
   A__SEL(s(cons(z0, z1)), cons(x1, x2)) -> c3(MARK(cons(z0, z1)))
   A__SEL(s(x0), cons(x1, s(z0))) -> c4(MARK(s(z0)))
   A__SEL(s(cons(z0, z1)), cons(x1, x2)) -> c4(MARK(x2))
   MARK(sel(sel(z0, z1), x1)) -> c7(A__SEL(a__sel(mark(z0), mark(z1)), mark(x1)), MARK(sel(z0, z1)))
   MARK(sel(s(z0), x1)) -> c7(A__SEL(s(mark(z0)), mark(x1)), MARK(s(z0)))
   MARK(sel(x0, s(z0))) -> c7(MARK(x0))
   MARK(sel(x0, 0)) -> c7(MARK(x0))
   MARK(sel(cons(z0, z1), x1)) -> c7(MARK(cons(z0, z1)))
   MARK(sel(0, x1)) -> c7(A__SEL(0, mark(x1)))
   MARK(sel(x0, from(z0))) -> c8(A__SEL(mark(x0), a__from(mark(z0))), MARK(from(z0)))
   MARK(sel(x0, sel(z0, z1))) -> c8(A__SEL(mark(x0), a__sel(mark(z0), mark(z1))), MARK(sel(z0, z1)))
   MARK(sel(x0, cons(z0, z1))) -> c8(A__SEL(mark(x0), cons(mark(z0), z1)), MARK(cons(z0, z1)))
   MARK(sel(from(z0), x1)) -> c8(A__SEL(a__from(mark(z0)), mark(x1)), MARK(x1))
   MARK(sel(sel(z0, z1), x1)) -> c8(A__SEL(a__sel(mark(z0), mark(z1)), mark(x1)), MARK(x1))
   MARK(sel(s(z0), x1)) -> c8(A__SEL(s(mark(z0)), mark(x1)), MARK(x1))
   MARK(sel(0, x1)) -> c8(A__SEL(0, mark(x1)), MARK(x1))
   MARK(sel(x0, s(z0))) -> c8(MARK(s(z0)))
   MARK(sel(cons(z0, z1), x1)) -> c8(MARK(x1))
   A__SEL(s(x0), cons(x1, from(x2))) -> c3(A__SEL(mark(x0), cons(mark(mark(x2)), from(s(mark(x2))))), MARK(x0))
   A__SEL(s(x0), cons(x1, from(from(z0)))) -> c3(A__SEL(mark(x0), a__from(a__from(mark(z0)))), MARK(x0))
   A__SEL(s(x0), cons(x1, from(sel(z0, z1)))) -> c3(A__SEL(mark(x0), a__from(a__sel(mark(z0), mark(z1)))), MARK(x0))
   A__SEL(s(x0), cons(x1, from(cons(z0, z1)))) -> c3(A__SEL(mark(x0), a__from(cons(mark(z0), z1))), MARK(x0))
   A__SEL(s(x0), cons(x1, from(s(z0)))) -> c3(A__SEL(mark(x0), a__from(s(mark(z0)))), MARK(x0))
   A__SEL(s(x0), cons(x1, from(0))) -> c3(A__SEL(mark(x0), a__from(0)), MARK(x0))
   A__SEL(s(from(z0)), cons(x1, from(x2))) -> c3(A__SEL(a__from(mark(z0)), a__from(mark(x2))), MARK(from(z0)))
   A__SEL(s(sel(z0, z1)), cons(x1, from(x2))) -> c3(A__SEL(a__sel(mark(z0), mark(z1)), a__from(mark(x2))), MARK(sel(z0, z1)))
   A__SEL(s(s(z0)), cons(x1, from(x2))) -> c3(A__SEL(s(mark(z0)), a__from(mark(x2))), MARK(s(z0)))
   A__SEL(s(x0), cons(x1, from(x2))) -> c3(MARK(x0))
   A__SEL(s(cons(z0, z1)), cons(x1, from(x2))) -> c3(MARK(cons(z0, z1)))
   A__SEL(s(0), cons(x1, from(x2))) -> c3(A__SEL(0, a__from(mark(x2))))
   A__SEL(s(x0), cons(x1, sel(x2, from(z0)))) -> c3(A__SEL(mark(x0), a__sel(mark(x2), a__from(mark(z0)))), MARK(x0))
   A__SEL(s(x0), cons(x1, sel(x2, sel(z0, z1)))) -> c3(A__SEL(mark(x0), a__sel(mark(x2), a__sel(mark(z0), mark(z1)))), MARK(x0))
   A__SEL(s(x0), cons(x1, sel(x2, cons(z0, z1)))) -> c3(A__SEL(mark(x0), a__sel(mark(x2), cons(mark(z0), z1))), MARK(x0))
   A__SEL(s(x0), cons(x1, sel(x2, s(z0)))) -> c3(A__SEL(mark(x0), a__sel(mark(x2), s(mark(z0)))), MARK(x0))
   A__SEL(s(x0), cons(x1, sel(x2, 0))) -> c3(A__SEL(mark(x0), a__sel(mark(x2), 0)), MARK(x0))
   A__SEL(s(x0), cons(x1, sel(from(z0), x3))) -> c3(A__SEL(mark(x0), a__sel(a__from(mark(z0)), mark(x3))), MARK(x0))
   A__SEL(s(x0), cons(x1, sel(sel(z0, z1), x3))) -> c3(A__SEL(mark(x0), a__sel(a__sel(mark(z0), mark(z1)), mark(x3))), MARK(x0))
   A__SEL(s(x0), cons(x1, sel(cons(z0, z1), x3))) -> c3(A__SEL(mark(x0), a__sel(cons(mark(z0), z1), mark(x3))), MARK(x0))
   A__SEL(s(x0), cons(x1, sel(s(z0), x3))) -> c3(A__SEL(mark(x0), a__sel(s(mark(z0)), mark(x3))), MARK(x0))
   A__SEL(s(x0), cons(x1, sel(0, x3))) -> c3(A__SEL(mark(x0), a__sel(0, mark(x3))), MARK(x0))
   A__SEL(s(from(z0)), cons(x1, sel(x2, x3))) -> c3(A__SEL(a__from(mark(z0)), a__sel(mark(x2), mark(x3))), MARK(from(z0)))
   A__SEL(s(sel(z0, z1)), cons(x1, sel(x2, x3))) -> c3(A__SEL(a__sel(mark(z0), mark(z1)), a__sel(mark(x2), mark(x3))), MARK(sel(z0, z1)))
   A__SEL(s(s(z0)), cons(x1, sel(x2, x3))) -> c3(A__SEL(s(mark(z0)), a__sel(mark(x2), mark(x3))), MARK(s(z0)))
   A__SEL(s(x0), cons(x1, sel(x2, x3))) -> c3(MARK(x0))
   A__SEL(s(cons(z0, z1)), cons(x1, sel(x2, x3))) -> c3(MARK(cons(z0, z1)))
   A__SEL(s(0), cons(x1, sel(x2, x3))) -> c3(A__SEL(0, a__sel(mark(x2), mark(x3))))
   A__SEL(s(x0), cons(x1, cons(from(z0), x3))) -> c3(A__SEL(mark(x0), cons(a__from(mark(z0)), x3)), MARK(x0))
   A__SEL(s(x0), cons(x1, cons(sel(z0, z1), x3))) -> c3(A__SEL(mark(x0), cons(a__sel(mark(z0), mark(z1)), x3)), MARK(x0))
   A__SEL(s(x0), cons(x1, cons(cons(z0, z1), x3))) -> c3(A__SEL(mark(x0), cons(cons(mark(z0), z1), x3)), MARK(x0))
   A__SEL(s(x0), cons(x1, cons(s(z0), x3))) -> c3(A__SEL(mark(x0), cons(s(mark(z0)), x3)), MARK(x0))
   A__SEL(s(x0), cons(x1, cons(0, x3))) -> c3(A__SEL(mark(x0), cons(0, x3)), MARK(x0))
   A__SEL(s(from(z0)), cons(x1, cons(x2, x3))) -> c3(A__SEL(a__from(mark(z0)), cons(mark(x2), x3)), MARK(from(z0)))
   A__SEL(s(sel(z0, z1)), cons(x1, cons(x2, x3))) -> c3(A__SEL(a__sel(mark(z0), mark(z1)), cons(mark(x2), x3)), MARK(sel(z0, z1)))
   A__SEL(s(s(z0)), cons(x1, cons(x2, x3))) -> c3(A__SEL(s(mark(z0)), cons(mark(x2), x3)), MARK(s(z0)))
   A__SEL(s(cons(z0, z1)), cons(x1, cons(x2, x3))) -> c3(MARK(cons(z0, z1)))
   A__SEL(s(0), cons(x1, cons(x2, x3))) -> c3(A__SEL(0, cons(mark(x2), x3)))
   A__SEL(s(from(from(z0))), cons(x1, x2)) -> c3(A__SEL(a__from(a__from(mark(z0))), mark(x2)), MARK(from(from(z0))))
   A__SEL(s(from(sel(z0, z1))), cons(x1, x2)) -> c3(A__SEL(a__from(a__sel(mark(z0), mark(z1))), mark(x2)), MARK(from(sel(z0, z1))))
   A__SEL(s(from(cons(z0, z1))), cons(x1, x2)) -> c3(A__SEL(a__from(cons(mark(z0), z1)), mark(x2)), MARK(from(cons(z0, z1))))
   A__SEL(s(from(s(z0))), cons(x1, x2)) -> c3(A__SEL(a__from(s(mark(z0))), mark(x2)), MARK(from(s(z0))))
   A__SEL(s(from(0)), cons(x1, x2)) -> c3(A__SEL(a__from(0), mark(x2)), MARK(from(0)))
   A__SEL(s(from(x0)), cons(x1, x2)) -> c3(MARK(from(x0)))
   A__SEL(s(from(x0)), cons(x1, s(z0))) -> c3(MARK(from(x0)))
   A__SEL(s(from(x0)), cons(x1, 0)) -> c3(MARK(from(x0)))
   A__SEL(s(sel(x0, from(z0))), cons(x2, x3)) -> c3(A__SEL(a__sel(mark(x0), a__from(mark(z0))), mark(x3)), MARK(sel(x0, from(z0))))
   A__SEL(s(sel(x0, sel(z0, z1))), cons(x2, x3)) -> c3(A__SEL(a__sel(mark(x0), a__sel(mark(z0), mark(z1))), mark(x3)), MARK(sel(x0, sel(z0, z1))))
   A__SEL(s(sel(x0, cons(z0, z1))), cons(x2, x3)) -> c3(A__SEL(a__sel(mark(x0), cons(mark(z0), z1)), mark(x3)), MARK(sel(x0, cons(z0, z1))))
   A__SEL(s(sel(x0, s(z0))), cons(x2, x3)) -> c3(A__SEL(a__sel(mark(x0), s(mark(z0))), mark(x3)), MARK(sel(x0, s(z0))))
   A__SEL(s(sel(x0, 0)), cons(x2, x3)) -> c3(A__SEL(a__sel(mark(x0), 0), mark(x3)), MARK(sel(x0, 0)))
   A__SEL(s(sel(from(z0), x1)), cons(x2, x3)) -> c3(A__SEL(a__sel(a__from(mark(z0)), mark(x1)), mark(x3)), MARK(sel(from(z0), x1)))
   A__SEL(s(sel(sel(z0, z1), x1)), cons(x2, x3)) -> c3(A__SEL(a__sel(a__sel(mark(z0), mark(z1)), mark(x1)), mark(x3)), MARK(sel(sel(z0, z1), x1)))
   A__SEL(s(sel(cons(z0, z1), x1)), cons(x2, x3)) -> c3(A__SEL(a__sel(cons(mark(z0), z1), mark(x1)), mark(x3)), MARK(sel(cons(z0, z1), x1)))
   A__SEL(s(sel(s(z0), x1)), cons(x2, x3)) -> c3(A__SEL(a__sel(s(mark(z0)), mark(x1)), mark(x3)), MARK(sel(s(z0), x1)))
   A__SEL(s(sel(0, x1)), cons(x2, x3)) -> c3(A__SEL(a__sel(0, mark(x1)), mark(x3)), MARK(sel(0, x1)))
   A__SEL(s(sel(x0, x1)), cons(x2, s(z0))) -> c3(MARK(sel(x0, x1)))
   A__SEL(s(sel(x0, x1)), cons(x2, 0)) -> c3(MARK(sel(x0, x1)))
   A__SEL(s(sel(x0, x1)), cons(x2, x3)) -> c3(MARK(sel(x0, x1)))
   A__SEL(s(s(from(z0))), cons(x1, x2)) -> c3(A__SEL(s(a__from(mark(z0))), mark(x2)), MARK(s(from(z0))))
   A__SEL(s(s(sel(z0, z1))), cons(x1, x2)) -> c3(A__SEL(s(a__sel(mark(z0), mark(z1))), mark(x2)), MARK(s(sel(z0, z1))))
   A__SEL(s(s(cons(z0, z1))), cons(x1, x2)) -> c3(A__SEL(s(cons(mark(z0), z1)), mark(x2)), MARK(s(cons(z0, z1))))
   A__SEL(s(s(s(z0))), cons(x1, x2)) -> c3(A__SEL(s(s(mark(z0))), mark(x2)), MARK(s(s(z0))))
   A__SEL(s(s(0)), cons(x1, x2)) -> c3(A__SEL(s(0), mark(x2)), MARK(s(0)))
   A__SEL(s(s(x0)), cons(x1, x2)) -> c3(MARK(s(x0)))
   A__SEL(s(s(x0)), cons(x1, s(z0))) -> c3(MARK(s(x0)))
   A__SEL(s(s(x0)), cons(x1, 0)) -> c3(MARK(s(x0)))
   A__SEL(s(x0), cons(x1, from(x2))) -> c4(A__SEL(mark(x0), cons(mark(mark(x2)), from(s(mark(x2))))), MARK(from(x2)))
   A__SEL(s(x0), cons(x1, from(from(z0)))) -> c4(A__SEL(mark(x0), a__from(a__from(mark(z0)))), MARK(from(from(z0))))
   A__SEL(s(x0), cons(x1, from(sel(z0, z1)))) -> c4(A__SEL(mark(x0), a__from(a__sel(mark(z0), mark(z1)))), MARK(from(sel(z0, z1))))
   A__SEL(s(x0), cons(x1, from(cons(z0, z1)))) -> c4(A__SEL(mark(x0), a__from(cons(mark(z0), z1))), MARK(from(cons(z0, z1))))
   A__SEL(s(x0), cons(x1, from(s(z0)))) -> c4(A__SEL(mark(x0), a__from(s(mark(z0)))), MARK(from(s(z0))))
   A__SEL(s(x0), cons(x1, from(0))) -> c4(A__SEL(mark(x0), a__from(0)), MARK(from(0)))
   A__SEL(s(from(z0)), cons(x1, from(x2))) -> c4(A__SEL(a__from(mark(z0)), a__from(mark(x2))), MARK(from(x2)))
   A__SEL(s(sel(z0, z1)), cons(x1, from(x2))) -> c4(A__SEL(a__sel(mark(z0), mark(z1)), a__from(mark(x2))), MARK(from(x2)))
   A__SEL(s(s(z0)), cons(x1, from(x2))) -> c4(A__SEL(s(mark(z0)), a__from(mark(x2))), MARK(from(x2)))
   A__SEL(s(0), cons(x1, from(x2))) -> c4(A__SEL(0, a__from(mark(x2))), MARK(from(x2)))
   A__SEL(s(x0), cons(x1, from(x2))) -> c4(MARK(from(x2)))
   A__SEL(s(cons(z0, z1)), cons(x1, from(x2))) -> c4(MARK(from(x2)))
   A__SEL(s(x0), cons(x1, sel(x2, from(z0)))) -> c4(A__SEL(mark(x0), a__sel(mark(x2), a__from(mark(z0)))), MARK(sel(x2, from(z0))))
   A__SEL(s(x0), cons(x1, sel(x2, sel(z0, z1)))) -> c4(A__SEL(mark(x0), a__sel(mark(x2), a__sel(mark(z0), mark(z1)))), MARK(sel(x2, sel(z0, z1))))
   A__SEL(s(x0), cons(x1, sel(x2, cons(z0, z1)))) -> c4(A__SEL(mark(x0), a__sel(mark(x2), cons(mark(z0), z1))), MARK(sel(x2, cons(z0, z1))))
   A__SEL(s(x0), cons(x1, sel(x2, s(z0)))) -> c4(A__SEL(mark(x0), a__sel(mark(x2), s(mark(z0)))), MARK(sel(x2, s(z0))))
   A__SEL(s(x0), cons(x1, sel(x2, 0))) -> c4(A__SEL(mark(x0), a__sel(mark(x2), 0)), MARK(sel(x2, 0)))
   A__SEL(s(x0), cons(x1, sel(from(z0), x3))) -> c4(A__SEL(mark(x0), a__sel(a__from(mark(z0)), mark(x3))), MARK(sel(from(z0), x3)))
   A__SEL(s(x0), cons(x1, sel(sel(z0, z1), x3))) -> c4(A__SEL(mark(x0), a__sel(a__sel(mark(z0), mark(z1)), mark(x3))), MARK(sel(sel(z0, z1), x3)))
   A__SEL(s(x0), cons(x1, sel(cons(z0, z1), x3))) -> c4(A__SEL(mark(x0), a__sel(cons(mark(z0), z1), mark(x3))), MARK(sel(cons(z0, z1), x3)))
   A__SEL(s(x0), cons(x1, sel(s(z0), x3))) -> c4(A__SEL(mark(x0), a__sel(s(mark(z0)), mark(x3))), MARK(sel(s(z0), x3)))
   A__SEL(s(x0), cons(x1, sel(0, x3))) -> c4(A__SEL(mark(x0), a__sel(0, mark(x3))), MARK(sel(0, x3)))
   A__SEL(s(from(z0)), cons(x1, sel(x2, x3))) -> c4(A__SEL(a__from(mark(z0)), a__sel(mark(x2), mark(x3))), MARK(sel(x2, x3)))
   A__SEL(s(sel(z0, z1)), cons(x1, sel(x2, x3))) -> c4(A__SEL(a__sel(mark(z0), mark(z1)), a__sel(mark(x2), mark(x3))), MARK(sel(x2, x3)))
   A__SEL(s(s(z0)), cons(x1, sel(x2, x3))) -> c4(A__SEL(s(mark(z0)), a__sel(mark(x2), mark(x3))), MARK(sel(x2, x3)))
   A__SEL(s(0), cons(x1, sel(x2, x3))) -> c4(A__SEL(0, a__sel(mark(x2), mark(x3))), MARK(sel(x2, x3)))
   A__SEL(s(x0), cons(x1, sel(x2, x3))) -> c4(MARK(sel(x2, x3)))
   A__SEL(s(cons(z0, z1)), cons(x1, sel(x2, x3))) -> c4(MARK(sel(x2, x3)))
   A__SEL(s(x0), cons(x1, cons(from(z0), x3))) -> c4(A__SEL(mark(x0), cons(a__from(mark(z0)), x3)), MARK(cons(from(z0), x3)))
   A__SEL(s(x0), cons(x1, cons(sel(z0, z1), x3))) -> c4(A__SEL(mark(x0), cons(a__sel(mark(z0), mark(z1)), x3)), MARK(cons(sel(z0, z1), x3)))
   A__SEL(s(x0), cons(x1, cons(cons(z0, z1), x3))) -> c4(A__SEL(mark(x0), cons(cons(mark(z0), z1), x3)), MARK(cons(cons(z0, z1), x3)))
   A__SEL(s(x0), cons(x1, cons(s(z0), x3))) -> c4(A__SEL(mark(x0), cons(s(mark(z0)), x3)), MARK(cons(s(z0), x3)))
   A__SEL(s(x0), cons(x1, cons(0, x3))) -> c4(A__SEL(mark(x0), cons(0, x3)), MARK(cons(0, x3)))
   A__SEL(s(from(z0)), cons(x1, cons(x2, x3))) -> c4(A__SEL(a__from(mark(z0)), cons(mark(x2), x3)), MARK(cons(x2, x3)))
   A__SEL(s(sel(z0, z1)), cons(x1, cons(x2, x3))) -> c4(A__SEL(a__sel(mark(z0), mark(z1)), cons(mark(x2), x3)), MARK(cons(x2, x3)))
   A__SEL(s(s(z0)), cons(x1, cons(x2, x3))) -> c4(A__SEL(s(mark(z0)), cons(mark(x2), x3)), MARK(cons(x2, x3)))
   A__SEL(s(0), cons(x1, cons(x2, x3))) -> c4(A__SEL(0, cons(mark(x2), x3)), MARK(cons(x2, x3)))
   A__SEL(s(x0), cons(x1, cons(x2, x3))) -> c4(MARK(cons(x2, x3)))
   A__SEL(s(cons(z0, z1)), cons(x1, cons(x2, x3))) -> c4(MARK(cons(x2, x3)))
   A__SEL(s(from(from(z0))), cons(x1, x2)) -> c4(A__SEL(a__from(a__from(mark(z0))), mark(x2)), MARK(x2))
   A__SEL(s(from(sel(z0, z1))), cons(x1, x2)) -> c4(A__SEL(a__from(a__sel(mark(z0), mark(z1))), mark(x2)), MARK(x2))
   A__SEL(s(from(cons(z0, z1))), cons(x1, x2)) -> c4(A__SEL(a__from(cons(mark(z0), z1)), mark(x2)), MARK(x2))
   A__SEL(s(from(s(z0))), cons(x1, x2)) -> c4(A__SEL(a__from(s(mark(z0))), mark(x2)), MARK(x2))
   A__SEL(s(from(0)), cons(x1, x2)) -> c4(A__SEL(a__from(0), mark(x2)), MARK(x2))
   A__SEL(s(from(x0)), cons(x1, s(z0))) -> c4(MARK(s(z0)))
   A__SEL(s(from(x0)), cons(x1, x2)) -> c4(MARK(x2))
   A__SEL(s(sel(x0, from(z0))), cons(x2, x3)) -> c4(A__SEL(a__sel(mark(x0), a__from(mark(z0))), mark(x3)), MARK(x3))
   A__SEL(s(sel(x0, sel(z0, z1))), cons(x2, x3)) -> c4(A__SEL(a__sel(mark(x0), a__sel(mark(z0), mark(z1))), mark(x3)), MARK(x3))
   A__SEL(s(sel(x0, cons(z0, z1))), cons(x2, x3)) -> c4(A__SEL(a__sel(mark(x0), cons(mark(z0), z1)), mark(x3)), MARK(x3))
   A__SEL(s(sel(x0, s(z0))), cons(x2, x3)) -> c4(A__SEL(a__sel(mark(x0), s(mark(z0))), mark(x3)), MARK(x3))
   A__SEL(s(sel(x0, 0)), cons(x2, x3)) -> c4(A__SEL(a__sel(mark(x0), 0), mark(x3)), MARK(x3))
   A__SEL(s(sel(from(z0), x1)), cons(x2, x3)) -> c4(A__SEL(a__sel(a__from(mark(z0)), mark(x1)), mark(x3)), MARK(x3))
   A__SEL(s(sel(sel(z0, z1), x1)), cons(x2, x3)) -> c4(A__SEL(a__sel(a__sel(mark(z0), mark(z1)), mark(x1)), mark(x3)), MARK(x3))
   A__SEL(s(sel(cons(z0, z1), x1)), cons(x2, x3)) -> c4(A__SEL(a__sel(cons(mark(z0), z1), mark(x1)), mark(x3)), MARK(x3))
   A__SEL(s(sel(s(z0), x1)), cons(x2, x3)) -> c4(A__SEL(a__sel(s(mark(z0)), mark(x1)), mark(x3)), MARK(x3))
   A__SEL(s(sel(0, x1)), cons(x2, x3)) -> c4(A__SEL(a__sel(0, mark(x1)), mark(x3)), MARK(x3))
   A__SEL(s(sel(x0, x1)), cons(x2, s(z0))) -> c4(MARK(s(z0)))
   A__SEL(s(sel(x0, x1)), cons(x2, x3)) -> c4(MARK(x3))
   A__SEL(s(s(from(z0))), cons(x1, x2)) -> c4(A__SEL(s(a__from(mark(z0))), mark(x2)), MARK(x2))
   A__SEL(s(s(sel(z0, z1))), cons(x1, x2)) -> c4(A__SEL(s(a__sel(mark(z0), mark(z1))), mark(x2)), MARK(x2))
   A__SEL(s(s(cons(z0, z1))), cons(x1, x2)) -> c4(A__SEL(s(cons(mark(z0), z1)), mark(x2)), MARK(x2))
   A__SEL(s(s(s(z0))), cons(x1, x2)) -> c4(A__SEL(s(s(mark(z0))), mark(x2)), MARK(x2))
   A__SEL(s(s(0)), cons(x1, x2)) -> c4(A__SEL(s(0), mark(x2)), MARK(x2))
   A__SEL(s(s(x0)), cons(x1, s(z0))) -> c4(MARK(s(z0)))
   A__SEL(s(0), cons(x0, s(z0))) -> c4(MARK(s(z0)))
   MARK(sel(x0, from(x1))) -> c7(A__SEL(mark(x0), cons(mark(mark(x1)), from(s(mark(x1))))), MARK(x0))
   MARK(sel(x0, from(from(z0)))) -> c7(A__SEL(mark(x0), a__from(a__from(mark(z0)))), MARK(x0))
   MARK(sel(x0, from(sel(z0, z1)))) -> c7(A__SEL(mark(x0), a__from(a__sel(mark(z0), mark(z1)))), MARK(x0))
   MARK(sel(x0, from(cons(z0, z1)))) -> c7(A__SEL(mark(x0), a__from(cons(mark(z0), z1))), MARK(x0))
   MARK(sel(x0, from(s(z0)))) -> c7(A__SEL(mark(x0), a__from(s(mark(z0)))), MARK(x0))
   MARK(sel(x0, from(0))) -> c7(A__SEL(mark(x0), a__from(0)), MARK(x0))
   MARK(sel(from(z0), from(x1))) -> c7(A__SEL(a__from(mark(z0)), a__from(mark(x1))), MARK(from(z0)))
   MARK(sel(sel(z0, z1), from(x1))) -> c7(A__SEL(a__sel(mark(z0), mark(z1)), a__from(mark(x1))), MARK(sel(z0, z1)))
   MARK(sel(s(z0), from(x1))) -> c7(A__SEL(s(mark(z0)), a__from(mark(x1))), MARK(s(z0)))
   MARK(sel(x0, from(x1))) -> c7(MARK(x0))
   MARK(sel(cons(z0, z1), from(x1))) -> c7(MARK(cons(z0, z1)))
   MARK(sel(0, from(x1))) -> c7(A__SEL(0, a__from(mark(x1))))
   MARK(sel(x0, sel(x1, from(z0)))) -> c7(A__SEL(mark(x0), a__sel(mark(x1), a__from(mark(z0)))), MARK(x0))
   MARK(sel(x0, sel(x1, sel(z0, z1)))) -> c7(A__SEL(mark(x0), a__sel(mark(x1), a__sel(mark(z0), mark(z1)))), MARK(x0))
   MARK(sel(x0, sel(x1, cons(z0, z1)))) -> c7(A__SEL(mark(x0), a__sel(mark(x1), cons(mark(z0), z1))), MARK(x0))
   MARK(sel(x0, sel(x1, s(z0)))) -> c7(A__SEL(mark(x0), a__sel(mark(x1), s(mark(z0)))), MARK(x0))
   MARK(sel(x0, sel(x1, 0))) -> c7(A__SEL(mark(x0), a__sel(mark(x1), 0)), MARK(x0))
   MARK(sel(x0, sel(from(z0), x2))) -> c7(A__SEL(mark(x0), a__sel(a__from(mark(z0)), mark(x2))), MARK(x0))
   MARK(sel(x0, sel(sel(z0, z1), x2))) -> c7(A__SEL(mark(x0), a__sel(a__sel(mark(z0), mark(z1)), mark(x2))), MARK(x0))
   MARK(sel(x0, sel(cons(z0, z1), x2))) -> c7(A__SEL(mark(x0), a__sel(cons(mark(z0), z1), mark(x2))), MARK(x0))
   MARK(sel(x0, sel(s(z0), x2))) -> c7(A__SEL(mark(x0), a__sel(s(mark(z0)), mark(x2))), MARK(x0))
   MARK(sel(x0, sel(0, x2))) -> c7(A__SEL(mark(x0), a__sel(0, mark(x2))), MARK(x0))
   MARK(sel(from(z0), sel(x1, x2))) -> c7(A__SEL(a__from(mark(z0)), a__sel(mark(x1), mark(x2))), MARK(from(z0)))
   MARK(sel(sel(z0, z1), sel(x1, x2))) -> c7(A__SEL(a__sel(mark(z0), mark(z1)), a__sel(mark(x1), mark(x2))), MARK(sel(z0, z1)))
   MARK(sel(s(z0), sel(x1, x2))) -> c7(A__SEL(s(mark(z0)), a__sel(mark(x1), mark(x2))), MARK(s(z0)))
   MARK(sel(x0, sel(x1, x2))) -> c7(MARK(x0))
   MARK(sel(cons(z0, z1), sel(x1, x2))) -> c7(MARK(cons(z0, z1)))
   MARK(sel(0, sel(x1, x2))) -> c7(A__SEL(0, a__sel(mark(x1), mark(x2))))
   MARK(sel(x0, cons(from(z0), x2))) -> c7(A__SEL(mark(x0), cons(a__from(mark(z0)), x2)), MARK(x0))
   MARK(sel(x0, cons(sel(z0, z1), x2))) -> c7(A__SEL(mark(x0), cons(a__sel(mark(z0), mark(z1)), x2)), MARK(x0))
   MARK(sel(x0, cons(cons(z0, z1), x2))) -> c7(A__SEL(mark(x0), cons(cons(mark(z0), z1), x2)), MARK(x0))
   MARK(sel(x0, cons(s(z0), x2))) -> c7(A__SEL(mark(x0), cons(s(mark(z0)), x2)), MARK(x0))
   MARK(sel(x0, cons(0, x2))) -> c7(A__SEL(mark(x0), cons(0, x2)), MARK(x0))
   MARK(sel(from(z0), cons(x1, x2))) -> c7(A__SEL(a__from(mark(z0)), cons(mark(x1), x2)), MARK(from(z0)))
   MARK(sel(sel(z0, z1), cons(x1, x2))) -> c7(A__SEL(a__sel(mark(z0), mark(z1)), cons(mark(x1), x2)), MARK(sel(z0, z1)))
   MARK(sel(s(z0), cons(x1, x2))) -> c7(A__SEL(s(mark(z0)), cons(mark(x1), x2)), MARK(s(z0)))
   MARK(sel(cons(z0, z1), cons(x1, x2))) -> c7(MARK(cons(z0, z1)))
   MARK(sel(0, cons(x1, x2))) -> c7(A__SEL(0, cons(mark(x1), x2)))
   MARK(sel(from(x0), s(z0))) -> c7(A__SEL(a__from(mark(x0)), s(mark(z0))), MARK(from(x0)))
   MARK(sel(from(x0), 0)) -> c7(A__SEL(a__from(mark(x0)), 0), MARK(from(x0)))
   MARK(sel(from(x0), x1)) -> c7(A__SEL(cons(mark(mark(x0)), from(s(mark(x0)))), mark(x1)), MARK(from(x0)))
   MARK(sel(from(x0), x1)) -> c7(A__SEL(from(mark(x0)), mark(x1)), MARK(from(x0)))
   MARK(sel(from(from(z0)), x1)) -> c7(A__SEL(a__from(a__from(mark(z0))), mark(x1)), MARK(from(from(z0))))
   MARK(sel(from(sel(z0, z1)), x1)) -> c7(A__SEL(a__from(a__sel(mark(z0), mark(z1))), mark(x1)), MARK(from(sel(z0, z1))))
   MARK(sel(from(cons(z0, z1)), x1)) -> c7(A__SEL(a__from(cons(mark(z0), z1)), mark(x1)), MARK(from(cons(z0, z1))))
   MARK(sel(from(s(z0)), x1)) -> c7(A__SEL(a__from(s(mark(z0))), mark(x1)), MARK(from(s(z0))))
   MARK(sel(from(0), x1)) -> c7(A__SEL(a__from(0), mark(x1)), MARK(from(0)))
   MARK(sel(from(x0), x1)) -> c7(MARK(from(x0)))
K tuples:none
Defined Rule Symbols:   a__from_1, a__sel_2, mark_1

Defined Pair Symbols:   A__FROM_1, A__SEL_2, MARK_1

Compound Symbols:   c_1, c2_1, c6_2, c9_1, c10_1, c3_1, c4_1, c7_2, c7_1, c8_2, c8_1, c3_2, c4_2


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

(155) CdtRhsSimplificationProcessorProof (BOTH BOUNDS(ID, ID))
Removed 4 trailing tuple parts
----------------------------------------

(156)
Obligation:
Complexity Dependency Tuples Problem

Rules:
   a__from(z0) -> cons(mark(z0), from(s(z0)))
   a__from(z0) -> from(z0)
   a__sel(0, cons(z0, z1)) -> mark(z0)
   a__sel(s(z0), cons(z1, z2)) -> a__sel(mark(z0), mark(z2))
   a__sel(z0, z1) -> sel(z0, z1)
   mark(from(z0)) -> a__from(mark(z0))
   mark(sel(z0, z1)) -> a__sel(mark(z0), mark(z1))
   mark(cons(z0, z1)) -> cons(mark(z0), z1)
   mark(s(z0)) -> s(mark(z0))
   mark(0) -> 0
Tuples:
   A__FROM(z0) -> c(MARK(z0))
   A__SEL(0, cons(z0, z1)) -> c2(MARK(z0))
   MARK(from(z0)) -> c6(A__FROM(mark(z0)), MARK(z0))
   MARK(cons(z0, z1)) -> c9(MARK(z0))
   MARK(s(z0)) -> c10(MARK(z0))
   A__SEL(s(x0), cons(x1, s(z0))) -> c3(MARK(x0))
   A__SEL(s(x0), cons(x1, 0)) -> c3(MARK(x0))
   A__SEL(s(cons(z0, z1)), cons(x1, x2)) -> c3(MARK(cons(z0, z1)))
   A__SEL(s(x0), cons(x1, s(z0))) -> c4(MARK(s(z0)))
   A__SEL(s(cons(z0, z1)), cons(x1, x2)) -> c4(MARK(x2))
   MARK(sel(sel(z0, z1), x1)) -> c7(A__SEL(a__sel(mark(z0), mark(z1)), mark(x1)), MARK(sel(z0, z1)))
   MARK(sel(s(z0), x1)) -> c7(A__SEL(s(mark(z0)), mark(x1)), MARK(s(z0)))
   MARK(sel(x0, s(z0))) -> c7(MARK(x0))
   MARK(sel(x0, 0)) -> c7(MARK(x0))
   MARK(sel(cons(z0, z1), x1)) -> c7(MARK(cons(z0, z1)))
   MARK(sel(0, x1)) -> c7(A__SEL(0, mark(x1)))
   MARK(sel(x0, from(z0))) -> c8(A__SEL(mark(x0), a__from(mark(z0))), MARK(from(z0)))
   MARK(sel(x0, sel(z0, z1))) -> c8(A__SEL(mark(x0), a__sel(mark(z0), mark(z1))), MARK(sel(z0, z1)))
   MARK(sel(x0, cons(z0, z1))) -> c8(A__SEL(mark(x0), cons(mark(z0), z1)), MARK(cons(z0, z1)))
   MARK(sel(from(z0), x1)) -> c8(A__SEL(a__from(mark(z0)), mark(x1)), MARK(x1))
   MARK(sel(sel(z0, z1), x1)) -> c8(A__SEL(a__sel(mark(z0), mark(z1)), mark(x1)), MARK(x1))
   MARK(sel(s(z0), x1)) -> c8(A__SEL(s(mark(z0)), mark(x1)), MARK(x1))
   MARK(sel(0, x1)) -> c8(A__SEL(0, mark(x1)), MARK(x1))
   MARK(sel(x0, s(z0))) -> c8(MARK(s(z0)))
   MARK(sel(cons(z0, z1), x1)) -> c8(MARK(x1))
   A__SEL(s(x0), cons(x1, from(x2))) -> c3(A__SEL(mark(x0), cons(mark(mark(x2)), from(s(mark(x2))))), MARK(x0))
   A__SEL(s(x0), cons(x1, from(from(z0)))) -> c3(A__SEL(mark(x0), a__from(a__from(mark(z0)))), MARK(x0))
   A__SEL(s(x0), cons(x1, from(sel(z0, z1)))) -> c3(A__SEL(mark(x0), a__from(a__sel(mark(z0), mark(z1)))), MARK(x0))
   A__SEL(s(x0), cons(x1, from(cons(z0, z1)))) -> c3(A__SEL(mark(x0), a__from(cons(mark(z0), z1))), MARK(x0))
   A__SEL(s(x0), cons(x1, from(s(z0)))) -> c3(A__SEL(mark(x0), a__from(s(mark(z0)))), MARK(x0))
   A__SEL(s(x0), cons(x1, from(0))) -> c3(A__SEL(mark(x0), a__from(0)), MARK(x0))
   A__SEL(s(from(z0)), cons(x1, from(x2))) -> c3(A__SEL(a__from(mark(z0)), a__from(mark(x2))), MARK(from(z0)))
   A__SEL(s(sel(z0, z1)), cons(x1, from(x2))) -> c3(A__SEL(a__sel(mark(z0), mark(z1)), a__from(mark(x2))), MARK(sel(z0, z1)))
   A__SEL(s(s(z0)), cons(x1, from(x2))) -> c3(A__SEL(s(mark(z0)), a__from(mark(x2))), MARK(s(z0)))
   A__SEL(s(x0), cons(x1, from(x2))) -> c3(MARK(x0))
   A__SEL(s(cons(z0, z1)), cons(x1, from(x2))) -> c3(MARK(cons(z0, z1)))
   A__SEL(s(0), cons(x1, from(x2))) -> c3(A__SEL(0, a__from(mark(x2))))
   A__SEL(s(x0), cons(x1, sel(x2, from(z0)))) -> c3(A__SEL(mark(x0), a__sel(mark(x2), a__from(mark(z0)))), MARK(x0))
   A__SEL(s(x0), cons(x1, sel(x2, sel(z0, z1)))) -> c3(A__SEL(mark(x0), a__sel(mark(x2), a__sel(mark(z0), mark(z1)))), MARK(x0))
   A__SEL(s(x0), cons(x1, sel(x2, cons(z0, z1)))) -> c3(A__SEL(mark(x0), a__sel(mark(x2), cons(mark(z0), z1))), MARK(x0))
   A__SEL(s(x0), cons(x1, sel(x2, s(z0)))) -> c3(A__SEL(mark(x0), a__sel(mark(x2), s(mark(z0)))), MARK(x0))
   A__SEL(s(x0), cons(x1, sel(x2, 0))) -> c3(A__SEL(mark(x0), a__sel(mark(x2), 0)), MARK(x0))
   A__SEL(s(x0), cons(x1, sel(from(z0), x3))) -> c3(A__SEL(mark(x0), a__sel(a__from(mark(z0)), mark(x3))), MARK(x0))
   A__SEL(s(x0), cons(x1, sel(sel(z0, z1), x3))) -> c3(A__SEL(mark(x0), a__sel(a__sel(mark(z0), mark(z1)), mark(x3))), MARK(x0))
   A__SEL(s(x0), cons(x1, sel(cons(z0, z1), x3))) -> c3(A__SEL(mark(x0), a__sel(cons(mark(z0), z1), mark(x3))), MARK(x0))
   A__SEL(s(x0), cons(x1, sel(s(z0), x3))) -> c3(A__SEL(mark(x0), a__sel(s(mark(z0)), mark(x3))), MARK(x0))
   A__SEL(s(x0), cons(x1, sel(0, x3))) -> c3(A__SEL(mark(x0), a__sel(0, mark(x3))), MARK(x0))
   A__SEL(s(from(z0)), cons(x1, sel(x2, x3))) -> c3(A__SEL(a__from(mark(z0)), a__sel(mark(x2), mark(x3))), MARK(from(z0)))
   A__SEL(s(sel(z0, z1)), cons(x1, sel(x2, x3))) -> c3(A__SEL(a__sel(mark(z0), mark(z1)), a__sel(mark(x2), mark(x3))), MARK(sel(z0, z1)))
   A__SEL(s(s(z0)), cons(x1, sel(x2, x3))) -> c3(A__SEL(s(mark(z0)), a__sel(mark(x2), mark(x3))), MARK(s(z0)))
   A__SEL(s(x0), cons(x1, sel(x2, x3))) -> c3(MARK(x0))
   A__SEL(s(cons(z0, z1)), cons(x1, sel(x2, x3))) -> c3(MARK(cons(z0, z1)))
   A__SEL(s(0), cons(x1, sel(x2, x3))) -> c3(A__SEL(0, a__sel(mark(x2), mark(x3))))
   A__SEL(s(x0), cons(x1, cons(from(z0), x3))) -> c3(A__SEL(mark(x0), cons(a__from(mark(z0)), x3)), MARK(x0))
   A__SEL(s(x0), cons(x1, cons(sel(z0, z1), x3))) -> c3(A__SEL(mark(x0), cons(a__sel(mark(z0), mark(z1)), x3)), MARK(x0))
   A__SEL(s(x0), cons(x1, cons(cons(z0, z1), x3))) -> c3(A__SEL(mark(x0), cons(cons(mark(z0), z1), x3)), MARK(x0))
   A__SEL(s(x0), cons(x1, cons(s(z0), x3))) -> c3(A__SEL(mark(x0), cons(s(mark(z0)), x3)), MARK(x0))
   A__SEL(s(x0), cons(x1, cons(0, x3))) -> c3(A__SEL(mark(x0), cons(0, x3)), MARK(x0))
   A__SEL(s(from(z0)), cons(x1, cons(x2, x3))) -> c3(A__SEL(a__from(mark(z0)), cons(mark(x2), x3)), MARK(from(z0)))
   A__SEL(s(sel(z0, z1)), cons(x1, cons(x2, x3))) -> c3(A__SEL(a__sel(mark(z0), mark(z1)), cons(mark(x2), x3)), MARK(sel(z0, z1)))
   A__SEL(s(s(z0)), cons(x1, cons(x2, x3))) -> c3(A__SEL(s(mark(z0)), cons(mark(x2), x3)), MARK(s(z0)))
   A__SEL(s(cons(z0, z1)), cons(x1, cons(x2, x3))) -> c3(MARK(cons(z0, z1)))
   A__SEL(s(0), cons(x1, cons(x2, x3))) -> c3(A__SEL(0, cons(mark(x2), x3)))
   A__SEL(s(from(from(z0))), cons(x1, x2)) -> c3(A__SEL(a__from(a__from(mark(z0))), mark(x2)), MARK(from(from(z0))))
   A__SEL(s(from(sel(z0, z1))), cons(x1, x2)) -> c3(A__SEL(a__from(a__sel(mark(z0), mark(z1))), mark(x2)), MARK(from(sel(z0, z1))))
   A__SEL(s(from(cons(z0, z1))), cons(x1, x2)) -> c3(A__SEL(a__from(cons(mark(z0), z1)), mark(x2)), MARK(from(cons(z0, z1))))
   A__SEL(s(from(s(z0))), cons(x1, x2)) -> c3(A__SEL(a__from(s(mark(z0))), mark(x2)), MARK(from(s(z0))))
   A__SEL(s(from(0)), cons(x1, x2)) -> c3(A__SEL(a__from(0), mark(x2)), MARK(from(0)))
   A__SEL(s(from(x0)), cons(x1, x2)) -> c3(MARK(from(x0)))
   A__SEL(s(from(x0)), cons(x1, s(z0))) -> c3(MARK(from(x0)))
   A__SEL(s(from(x0)), cons(x1, 0)) -> c3(MARK(from(x0)))
   A__SEL(s(sel(x0, from(z0))), cons(x2, x3)) -> c3(A__SEL(a__sel(mark(x0), a__from(mark(z0))), mark(x3)), MARK(sel(x0, from(z0))))
   A__SEL(s(sel(x0, sel(z0, z1))), cons(x2, x3)) -> c3(A__SEL(a__sel(mark(x0), a__sel(mark(z0), mark(z1))), mark(x3)), MARK(sel(x0, sel(z0, z1))))
   A__SEL(s(sel(x0, cons(z0, z1))), cons(x2, x3)) -> c3(A__SEL(a__sel(mark(x0), cons(mark(z0), z1)), mark(x3)), MARK(sel(x0, cons(z0, z1))))
   A__SEL(s(sel(x0, s(z0))), cons(x2, x3)) -> c3(A__SEL(a__sel(mark(x0), s(mark(z0))), mark(x3)), MARK(sel(x0, s(z0))))
   A__SEL(s(sel(x0, 0)), cons(x2, x3)) -> c3(A__SEL(a__sel(mark(x0), 0), mark(x3)), MARK(sel(x0, 0)))
   A__SEL(s(sel(from(z0), x1)), cons(x2, x3)) -> c3(A__SEL(a__sel(a__from(mark(z0)), mark(x1)), mark(x3)), MARK(sel(from(z0), x1)))
   A__SEL(s(sel(sel(z0, z1), x1)), cons(x2, x3)) -> c3(A__SEL(a__sel(a__sel(mark(z0), mark(z1)), mark(x1)), mark(x3)), MARK(sel(sel(z0, z1), x1)))
   A__SEL(s(sel(cons(z0, z1), x1)), cons(x2, x3)) -> c3(A__SEL(a__sel(cons(mark(z0), z1), mark(x1)), mark(x3)), MARK(sel(cons(z0, z1), x1)))
   A__SEL(s(sel(s(z0), x1)), cons(x2, x3)) -> c3(A__SEL(a__sel(s(mark(z0)), mark(x1)), mark(x3)), MARK(sel(s(z0), x1)))
   A__SEL(s(sel(0, x1)), cons(x2, x3)) -> c3(A__SEL(a__sel(0, mark(x1)), mark(x3)), MARK(sel(0, x1)))
   A__SEL(s(sel(x0, x1)), cons(x2, s(z0))) -> c3(MARK(sel(x0, x1)))
   A__SEL(s(sel(x0, x1)), cons(x2, 0)) -> c3(MARK(sel(x0, x1)))
   A__SEL(s(sel(x0, x1)), cons(x2, x3)) -> c3(MARK(sel(x0, x1)))
   A__SEL(s(s(from(z0))), cons(x1, x2)) -> c3(A__SEL(s(a__from(mark(z0))), mark(x2)), MARK(s(from(z0))))
   A__SEL(s(s(sel(z0, z1))), cons(x1, x2)) -> c3(A__SEL(s(a__sel(mark(z0), mark(z1))), mark(x2)), MARK(s(sel(z0, z1))))
   A__SEL(s(s(cons(z0, z1))), cons(x1, x2)) -> c3(A__SEL(s(cons(mark(z0), z1)), mark(x2)), MARK(s(cons(z0, z1))))
   A__SEL(s(s(s(z0))), cons(x1, x2)) -> c3(A__SEL(s(s(mark(z0))), mark(x2)), MARK(s(s(z0))))
   A__SEL(s(s(0)), cons(x1, x2)) -> c3(A__SEL(s(0), mark(x2)), MARK(s(0)))
   A__SEL(s(s(x0)), cons(x1, x2)) -> c3(MARK(s(x0)))
   A__SEL(s(s(x0)), cons(x1, s(z0))) -> c3(MARK(s(x0)))
   A__SEL(s(s(x0)), cons(x1, 0)) -> c3(MARK(s(x0)))
   A__SEL(s(x0), cons(x1, from(x2))) -> c4(A__SEL(mark(x0), cons(mark(mark(x2)), from(s(mark(x2))))), MARK(from(x2)))
   A__SEL(s(x0), cons(x1, from(from(z0)))) -> c4(A__SEL(mark(x0), a__from(a__from(mark(z0)))), MARK(from(from(z0))))
   A__SEL(s(x0), cons(x1, from(sel(z0, z1)))) -> c4(A__SEL(mark(x0), a__from(a__sel(mark(z0), mark(z1)))), MARK(from(sel(z0, z1))))
   A__SEL(s(x0), cons(x1, from(cons(z0, z1)))) -> c4(A__SEL(mark(x0), a__from(cons(mark(z0), z1))), MARK(from(cons(z0, z1))))
   A__SEL(s(x0), cons(x1, from(s(z0)))) -> c4(A__SEL(mark(x0), a__from(s(mark(z0)))), MARK(from(s(z0))))
   A__SEL(s(x0), cons(x1, from(0))) -> c4(A__SEL(mark(x0), a__from(0)), MARK(from(0)))
   A__SEL(s(from(z0)), cons(x1, from(x2))) -> c4(A__SEL(a__from(mark(z0)), a__from(mark(x2))), MARK(from(x2)))
   A__SEL(s(sel(z0, z1)), cons(x1, from(x2))) -> c4(A__SEL(a__sel(mark(z0), mark(z1)), a__from(mark(x2))), MARK(from(x2)))
   A__SEL(s(s(z0)), cons(x1, from(x2))) -> c4(A__SEL(s(mark(z0)), a__from(mark(x2))), MARK(from(x2)))
   A__SEL(s(0), cons(x1, from(x2))) -> c4(A__SEL(0, a__from(mark(x2))), MARK(from(x2)))
   A__SEL(s(x0), cons(x1, from(x2))) -> c4(MARK(from(x2)))
   A__SEL(s(cons(z0, z1)), cons(x1, from(x2))) -> c4(MARK(from(x2)))
   A__SEL(s(x0), cons(x1, sel(x2, from(z0)))) -> c4(A__SEL(mark(x0), a__sel(mark(x2), a__from(mark(z0)))), MARK(sel(x2, from(z0))))
   A__SEL(s(x0), cons(x1, sel(x2, sel(z0, z1)))) -> c4(A__SEL(mark(x0), a__sel(mark(x2), a__sel(mark(z0), mark(z1)))), MARK(sel(x2, sel(z0, z1))))
   A__SEL(s(x0), cons(x1, sel(x2, cons(z0, z1)))) -> c4(A__SEL(mark(x0), a__sel(mark(x2), cons(mark(z0), z1))), MARK(sel(x2, cons(z0, z1))))
   A__SEL(s(x0), cons(x1, sel(x2, s(z0)))) -> c4(A__SEL(mark(x0), a__sel(mark(x2), s(mark(z0)))), MARK(sel(x2, s(z0))))
   A__SEL(s(x0), cons(x1, sel(x2, 0))) -> c4(A__SEL(mark(x0), a__sel(mark(x2), 0)), MARK(sel(x2, 0)))
   A__SEL(s(x0), cons(x1, sel(from(z0), x3))) -> c4(A__SEL(mark(x0), a__sel(a__from(mark(z0)), mark(x3))), MARK(sel(from(z0), x3)))
   A__SEL(s(x0), cons(x1, sel(sel(z0, z1), x3))) -> c4(A__SEL(mark(x0), a__sel(a__sel(mark(z0), mark(z1)), mark(x3))), MARK(sel(sel(z0, z1), x3)))
   A__SEL(s(x0), cons(x1, sel(cons(z0, z1), x3))) -> c4(A__SEL(mark(x0), a__sel(cons(mark(z0), z1), mark(x3))), MARK(sel(cons(z0, z1), x3)))
   A__SEL(s(x0), cons(x1, sel(s(z0), x3))) -> c4(A__SEL(mark(x0), a__sel(s(mark(z0)), mark(x3))), MARK(sel(s(z0), x3)))
   A__SEL(s(x0), cons(x1, sel(0, x3))) -> c4(A__SEL(mark(x0), a__sel(0, mark(x3))), MARK(sel(0, x3)))
   A__SEL(s(from(z0)), cons(x1, sel(x2, x3))) -> c4(A__SEL(a__from(mark(z0)), a__sel(mark(x2), mark(x3))), MARK(sel(x2, x3)))
   A__SEL(s(sel(z0, z1)), cons(x1, sel(x2, x3))) -> c4(A__SEL(a__sel(mark(z0), mark(z1)), a__sel(mark(x2), mark(x3))), MARK(sel(x2, x3)))
   A__SEL(s(s(z0)), cons(x1, sel(x2, x3))) -> c4(A__SEL(s(mark(z0)), a__sel(mark(x2), mark(x3))), MARK(sel(x2, x3)))
   A__SEL(s(0), cons(x1, sel(x2, x3))) -> c4(A__SEL(0, a__sel(mark(x2), mark(x3))), MARK(sel(x2, x3)))
   A__SEL(s(x0), cons(x1, sel(x2, x3))) -> c4(MARK(sel(x2, x3)))
   A__SEL(s(cons(z0, z1)), cons(x1, sel(x2, x3))) -> c4(MARK(sel(x2, x3)))
   A__SEL(s(x0), cons(x1, cons(from(z0), x3))) -> c4(A__SEL(mark(x0), cons(a__from(mark(z0)), x3)), MARK(cons(from(z0), x3)))
   A__SEL(s(x0), cons(x1, cons(sel(z0, z1), x3))) -> c4(A__SEL(mark(x0), cons(a__sel(mark(z0), mark(z1)), x3)), MARK(cons(sel(z0, z1), x3)))
   A__SEL(s(x0), cons(x1, cons(cons(z0, z1), x3))) -> c4(A__SEL(mark(x0), cons(cons(mark(z0), z1), x3)), MARK(cons(cons(z0, z1), x3)))
   A__SEL(s(x0), cons(x1, cons(s(z0), x3))) -> c4(A__SEL(mark(x0), cons(s(mark(z0)), x3)), MARK(cons(s(z0), x3)))
   A__SEL(s(x0), cons(x1, cons(0, x3))) -> c4(A__SEL(mark(x0), cons(0, x3)), MARK(cons(0, x3)))
   A__SEL(s(from(z0)), cons(x1, cons(x2, x3))) -> c4(A__SEL(a__from(mark(z0)), cons(mark(x2), x3)), MARK(cons(x2, x3)))
   A__SEL(s(sel(z0, z1)), cons(x1, cons(x2, x3))) -> c4(A__SEL(a__sel(mark(z0), mark(z1)), cons(mark(x2), x3)), MARK(cons(x2, x3)))
   A__SEL(s(s(z0)), cons(x1, cons(x2, x3))) -> c4(A__SEL(s(mark(z0)), cons(mark(x2), x3)), MARK(cons(x2, x3)))
   A__SEL(s(0), cons(x1, cons(x2, x3))) -> c4(A__SEL(0, cons(mark(x2), x3)), MARK(cons(x2, x3)))
   A__SEL(s(x0), cons(x1, cons(x2, x3))) -> c4(MARK(cons(x2, x3)))
   A__SEL(s(cons(z0, z1)), cons(x1, cons(x2, x3))) -> c4(MARK(cons(x2, x3)))
   A__SEL(s(from(from(z0))), cons(x1, x2)) -> c4(A__SEL(a__from(a__from(mark(z0))), mark(x2)), MARK(x2))
   A__SEL(s(from(sel(z0, z1))), cons(x1, x2)) -> c4(A__SEL(a__from(a__sel(mark(z0), mark(z1))), mark(x2)), MARK(x2))
   A__SEL(s(from(cons(z0, z1))), cons(x1, x2)) -> c4(A__SEL(a__from(cons(mark(z0), z1)), mark(x2)), MARK(x2))
   A__SEL(s(from(s(z0))), cons(x1, x2)) -> c4(A__SEL(a__from(s(mark(z0))), mark(x2)), MARK(x2))
   A__SEL(s(from(0)), cons(x1, x2)) -> c4(A__SEL(a__from(0), mark(x2)), MARK(x2))
   A__SEL(s(from(x0)), cons(x1, s(z0))) -> c4(MARK(s(z0)))
   A__SEL(s(from(x0)), cons(x1, x2)) -> c4(MARK(x2))
   A__SEL(s(sel(x0, from(z0))), cons(x2, x3)) -> c4(A__SEL(a__sel(mark(x0), a__from(mark(z0))), mark(x3)), MARK(x3))
   A__SEL(s(sel(x0, sel(z0, z1))), cons(x2, x3)) -> c4(A__SEL(a__sel(mark(x0), a__sel(mark(z0), mark(z1))), mark(x3)), MARK(x3))
   A__SEL(s(sel(x0, cons(z0, z1))), cons(x2, x3)) -> c4(A__SEL(a__sel(mark(x0), cons(mark(z0), z1)), mark(x3)), MARK(x3))
   A__SEL(s(sel(x0, s(z0))), cons(x2, x3)) -> c4(A__SEL(a__sel(mark(x0), s(mark(z0))), mark(x3)), MARK(x3))
   A__SEL(s(sel(x0, 0)), cons(x2, x3)) -> c4(A__SEL(a__sel(mark(x0), 0), mark(x3)), MARK(x3))
   A__SEL(s(sel(from(z0), x1)), cons(x2, x3)) -> c4(A__SEL(a__sel(a__from(mark(z0)), mark(x1)), mark(x3)), MARK(x3))
   A__SEL(s(sel(sel(z0, z1), x1)), cons(x2, x3)) -> c4(A__SEL(a__sel(a__sel(mark(z0), mark(z1)), mark(x1)), mark(x3)), MARK(x3))
   A__SEL(s(sel(cons(z0, z1), x1)), cons(x2, x3)) -> c4(A__SEL(a__sel(cons(mark(z0), z1), mark(x1)), mark(x3)), MARK(x3))
   A__SEL(s(sel(s(z0), x1)), cons(x2, x3)) -> c4(A__SEL(a__sel(s(mark(z0)), mark(x1)), mark(x3)), MARK(x3))
   A__SEL(s(sel(0, x1)), cons(x2, x3)) -> c4(A__SEL(a__sel(0, mark(x1)), mark(x3)), MARK(x3))
   A__SEL(s(sel(x0, x1)), cons(x2, s(z0))) -> c4(MARK(s(z0)))
   A__SEL(s(sel(x0, x1)), cons(x2, x3)) -> c4(MARK(x3))
   A__SEL(s(s(from(z0))), cons(x1, x2)) -> c4(A__SEL(s(a__from(mark(z0))), mark(x2)), MARK(x2))
   A__SEL(s(s(sel(z0, z1))), cons(x1, x2)) -> c4(A__SEL(s(a__sel(mark(z0), mark(z1))), mark(x2)), MARK(x2))
   A__SEL(s(s(cons(z0, z1))), cons(x1, x2)) -> c4(A__SEL(s(cons(mark(z0), z1)), mark(x2)), MARK(x2))
   A__SEL(s(s(s(z0))), cons(x1, x2)) -> c4(A__SEL(s(s(mark(z0))), mark(x2)), MARK(x2))
   A__SEL(s(s(0)), cons(x1, x2)) -> c4(A__SEL(s(0), mark(x2)), MARK(x2))
   A__SEL(s(s(x0)), cons(x1, s(z0))) -> c4(MARK(s(z0)))
   A__SEL(s(0), cons(x0, s(z0))) -> c4(MARK(s(z0)))
   MARK(sel(x0, from(x1))) -> c7(A__SEL(mark(x0), cons(mark(mark(x1)), from(s(mark(x1))))), MARK(x0))
   MARK(sel(x0, from(from(z0)))) -> c7(A__SEL(mark(x0), a__from(a__from(mark(z0)))), MARK(x0))
   MARK(sel(x0, from(sel(z0, z1)))) -> c7(A__SEL(mark(x0), a__from(a__sel(mark(z0), mark(z1)))), MARK(x0))
   MARK(sel(x0, from(cons(z0, z1)))) -> c7(A__SEL(mark(x0), a__from(cons(mark(z0), z1))), MARK(x0))
   MARK(sel(x0, from(s(z0)))) -> c7(A__SEL(mark(x0), a__from(s(mark(z0)))), MARK(x0))
   MARK(sel(x0, from(0))) -> c7(A__SEL(mark(x0), a__from(0)), MARK(x0))
   MARK(sel(from(z0), from(x1))) -> c7(A__SEL(a__from(mark(z0)), a__from(mark(x1))), MARK(from(z0)))
   MARK(sel(sel(z0, z1), from(x1))) -> c7(A__SEL(a__sel(mark(z0), mark(z1)), a__from(mark(x1))), MARK(sel(z0, z1)))
   MARK(sel(s(z0), from(x1))) -> c7(A__SEL(s(mark(z0)), a__from(mark(x1))), MARK(s(z0)))
   MARK(sel(x0, from(x1))) -> c7(MARK(x0))
   MARK(sel(cons(z0, z1), from(x1))) -> c7(MARK(cons(z0, z1)))
   MARK(sel(0, from(x1))) -> c7(A__SEL(0, a__from(mark(x1))))
   MARK(sel(x0, sel(x1, from(z0)))) -> c7(A__SEL(mark(x0), a__sel(mark(x1), a__from(mark(z0)))), MARK(x0))
   MARK(sel(x0, sel(x1, sel(z0, z1)))) -> c7(A__SEL(mark(x0), a__sel(mark(x1), a__sel(mark(z0), mark(z1)))), MARK(x0))
   MARK(sel(x0, sel(x1, cons(z0, z1)))) -> c7(A__SEL(mark(x0), a__sel(mark(x1), cons(mark(z0), z1))), MARK(x0))
   MARK(sel(x0, sel(x1, s(z0)))) -> c7(A__SEL(mark(x0), a__sel(mark(x1), s(mark(z0)))), MARK(x0))
   MARK(sel(x0, sel(x1, 0))) -> c7(A__SEL(mark(x0), a__sel(mark(x1), 0)), MARK(x0))
   MARK(sel(x0, sel(from(z0), x2))) -> c7(A__SEL(mark(x0), a__sel(a__from(mark(z0)), mark(x2))), MARK(x0))
   MARK(sel(x0, sel(sel(z0, z1), x2))) -> c7(A__SEL(mark(x0), a__sel(a__sel(mark(z0), mark(z1)), mark(x2))), MARK(x0))
   MARK(sel(x0, sel(cons(z0, z1), x2))) -> c7(A__SEL(mark(x0), a__sel(cons(mark(z0), z1), mark(x2))), MARK(x0))
   MARK(sel(x0, sel(s(z0), x2))) -> c7(A__SEL(mark(x0), a__sel(s(mark(z0)), mark(x2))), MARK(x0))
   MARK(sel(x0, sel(0, x2))) -> c7(A__SEL(mark(x0), a__sel(0, mark(x2))), MARK(x0))
   MARK(sel(from(z0), sel(x1, x2))) -> c7(A__SEL(a__from(mark(z0)), a__sel(mark(x1), mark(x2))), MARK(from(z0)))
   MARK(sel(sel(z0, z1), sel(x1, x2))) -> c7(A__SEL(a__sel(mark(z0), mark(z1)), a__sel(mark(x1), mark(x2))), MARK(sel(z0, z1)))
   MARK(sel(s(z0), sel(x1, x2))) -> c7(A__SEL(s(mark(z0)), a__sel(mark(x1), mark(x2))), MARK(s(z0)))
   MARK(sel(x0, sel(x1, x2))) -> c7(MARK(x0))
   MARK(sel(cons(z0, z1), sel(x1, x2))) -> c7(MARK(cons(z0, z1)))
   MARK(sel(0, sel(x1, x2))) -> c7(A__SEL(0, a__sel(mark(x1), mark(x2))))
   MARK(sel(x0, cons(from(z0), x2))) -> c7(A__SEL(mark(x0), cons(a__from(mark(z0)), x2)), MARK(x0))
   MARK(sel(x0, cons(sel(z0, z1), x2))) -> c7(A__SEL(mark(x0), cons(a__sel(mark(z0), mark(z1)), x2)), MARK(x0))
   MARK(sel(x0, cons(cons(z0, z1), x2))) -> c7(A__SEL(mark(x0), cons(cons(mark(z0), z1), x2)), MARK(x0))
   MARK(sel(x0, cons(s(z0), x2))) -> c7(A__SEL(mark(x0), cons(s(mark(z0)), x2)), MARK(x0))
   MARK(sel(x0, cons(0, x2))) -> c7(A__SEL(mark(x0), cons(0, x2)), MARK(x0))
   MARK(sel(from(z0), cons(x1, x2))) -> c7(A__SEL(a__from(mark(z0)), cons(mark(x1), x2)), MARK(from(z0)))
   MARK(sel(sel(z0, z1), cons(x1, x2))) -> c7(A__SEL(a__sel(mark(z0), mark(z1)), cons(mark(x1), x2)), MARK(sel(z0, z1)))
   MARK(sel(s(z0), cons(x1, x2))) -> c7(A__SEL(s(mark(z0)), cons(mark(x1), x2)), MARK(s(z0)))
   MARK(sel(cons(z0, z1), cons(x1, x2))) -> c7(MARK(cons(z0, z1)))
   MARK(sel(0, cons(x1, x2))) -> c7(A__SEL(0, cons(mark(x1), x2)))
   MARK(sel(from(from(z0)), x1)) -> c7(A__SEL(a__from(a__from(mark(z0))), mark(x1)), MARK(from(from(z0))))
   MARK(sel(from(sel(z0, z1)), x1)) -> c7(A__SEL(a__from(a__sel(mark(z0), mark(z1))), mark(x1)), MARK(from(sel(z0, z1))))
   MARK(sel(from(cons(z0, z1)), x1)) -> c7(A__SEL(a__from(cons(mark(z0), z1)), mark(x1)), MARK(from(cons(z0, z1))))
   MARK(sel(from(s(z0)), x1)) -> c7(A__SEL(a__from(s(mark(z0))), mark(x1)), MARK(from(s(z0))))
   MARK(sel(from(0), x1)) -> c7(A__SEL(a__from(0), mark(x1)), MARK(from(0)))
   MARK(sel(from(x0), x1)) -> c7(MARK(from(x0)))
   MARK(sel(from(x0), s(z0))) -> c7(MARK(from(x0)))
   MARK(sel(from(x0), 0)) -> c7(MARK(from(x0)))
S tuples:
   A__FROM(z0) -> c(MARK(z0))
   A__SEL(0, cons(z0, z1)) -> c2(MARK(z0))
   MARK(from(z0)) -> c6(A__FROM(mark(z0)), MARK(z0))
   MARK(cons(z0, z1)) -> c9(MARK(z0))
   MARK(s(z0)) -> c10(MARK(z0))
   A__SEL(s(x0), cons(x1, s(z0))) -> c3(MARK(x0))
   A__SEL(s(x0), cons(x1, 0)) -> c3(MARK(x0))
   A__SEL(s(cons(z0, z1)), cons(x1, x2)) -> c3(MARK(cons(z0, z1)))
   A__SEL(s(x0), cons(x1, s(z0))) -> c4(MARK(s(z0)))
   A__SEL(s(cons(z0, z1)), cons(x1, x2)) -> c4(MARK(x2))
   MARK(sel(sel(z0, z1), x1)) -> c7(A__SEL(a__sel(mark(z0), mark(z1)), mark(x1)), MARK(sel(z0, z1)))
   MARK(sel(s(z0), x1)) -> c7(A__SEL(s(mark(z0)), mark(x1)), MARK(s(z0)))
   MARK(sel(x0, s(z0))) -> c7(MARK(x0))
   MARK(sel(x0, 0)) -> c7(MARK(x0))
   MARK(sel(cons(z0, z1), x1)) -> c7(MARK(cons(z0, z1)))
   MARK(sel(0, x1)) -> c7(A__SEL(0, mark(x1)))
   MARK(sel(x0, from(z0))) -> c8(A__SEL(mark(x0), a__from(mark(z0))), MARK(from(z0)))
   MARK(sel(x0, sel(z0, z1))) -> c8(A__SEL(mark(x0), a__sel(mark(z0), mark(z1))), MARK(sel(z0, z1)))
   MARK(sel(x0, cons(z0, z1))) -> c8(A__SEL(mark(x0), cons(mark(z0), z1)), MARK(cons(z0, z1)))
   MARK(sel(from(z0), x1)) -> c8(A__SEL(a__from(mark(z0)), mark(x1)), MARK(x1))
   MARK(sel(sel(z0, z1), x1)) -> c8(A__SEL(a__sel(mark(z0), mark(z1)), mark(x1)), MARK(x1))
   MARK(sel(s(z0), x1)) -> c8(A__SEL(s(mark(z0)), mark(x1)), MARK(x1))
   MARK(sel(0, x1)) -> c8(A__SEL(0, mark(x1)), MARK(x1))
   MARK(sel(x0, s(z0))) -> c8(MARK(s(z0)))
   MARK(sel(cons(z0, z1), x1)) -> c8(MARK(x1))
   A__SEL(s(x0), cons(x1, from(x2))) -> c3(A__SEL(mark(x0), cons(mark(mark(x2)), from(s(mark(x2))))), MARK(x0))
   A__SEL(s(x0), cons(x1, from(from(z0)))) -> c3(A__SEL(mark(x0), a__from(a__from(mark(z0)))), MARK(x0))
   A__SEL(s(x0), cons(x1, from(sel(z0, z1)))) -> c3(A__SEL(mark(x0), a__from(a__sel(mark(z0), mark(z1)))), MARK(x0))
   A__SEL(s(x0), cons(x1, from(cons(z0, z1)))) -> c3(A__SEL(mark(x0), a__from(cons(mark(z0), z1))), MARK(x0))
   A__SEL(s(x0), cons(x1, from(s(z0)))) -> c3(A__SEL(mark(x0), a__from(s(mark(z0)))), MARK(x0))
   A__SEL(s(x0), cons(x1, from(0))) -> c3(A__SEL(mark(x0), a__from(0)), MARK(x0))
   A__SEL(s(from(z0)), cons(x1, from(x2))) -> c3(A__SEL(a__from(mark(z0)), a__from(mark(x2))), MARK(from(z0)))
   A__SEL(s(sel(z0, z1)), cons(x1, from(x2))) -> c3(A__SEL(a__sel(mark(z0), mark(z1)), a__from(mark(x2))), MARK(sel(z0, z1)))
   A__SEL(s(s(z0)), cons(x1, from(x2))) -> c3(A__SEL(s(mark(z0)), a__from(mark(x2))), MARK(s(z0)))
   A__SEL(s(x0), cons(x1, from(x2))) -> c3(MARK(x0))
   A__SEL(s(cons(z0, z1)), cons(x1, from(x2))) -> c3(MARK(cons(z0, z1)))
   A__SEL(s(0), cons(x1, from(x2))) -> c3(A__SEL(0, a__from(mark(x2))))
   A__SEL(s(x0), cons(x1, sel(x2, from(z0)))) -> c3(A__SEL(mark(x0), a__sel(mark(x2), a__from(mark(z0)))), MARK(x0))
   A__SEL(s(x0), cons(x1, sel(x2, sel(z0, z1)))) -> c3(A__SEL(mark(x0), a__sel(mark(x2), a__sel(mark(z0), mark(z1)))), MARK(x0))
   A__SEL(s(x0), cons(x1, sel(x2, cons(z0, z1)))) -> c3(A__SEL(mark(x0), a__sel(mark(x2), cons(mark(z0), z1))), MARK(x0))
   A__SEL(s(x0), cons(x1, sel(x2, s(z0)))) -> c3(A__SEL(mark(x0), a__sel(mark(x2), s(mark(z0)))), MARK(x0))
   A__SEL(s(x0), cons(x1, sel(x2, 0))) -> c3(A__SEL(mark(x0), a__sel(mark(x2), 0)), MARK(x0))
   A__SEL(s(x0), cons(x1, sel(from(z0), x3))) -> c3(A__SEL(mark(x0), a__sel(a__from(mark(z0)), mark(x3))), MARK(x0))
   A__SEL(s(x0), cons(x1, sel(sel(z0, z1), x3))) -> c3(A__SEL(mark(x0), a__sel(a__sel(mark(z0), mark(z1)), mark(x3))), MARK(x0))
   A__SEL(s(x0), cons(x1, sel(cons(z0, z1), x3))) -> c3(A__SEL(mark(x0), a__sel(cons(mark(z0), z1), mark(x3))), MARK(x0))
   A__SEL(s(x0), cons(x1, sel(s(z0), x3))) -> c3(A__SEL(mark(x0), a__sel(s(mark(z0)), mark(x3))), MARK(x0))
   A__SEL(s(x0), cons(x1, sel(0, x3))) -> c3(A__SEL(mark(x0), a__sel(0, mark(x3))), MARK(x0))
   A__SEL(s(from(z0)), cons(x1, sel(x2, x3))) -> c3(A__SEL(a__from(mark(z0)), a__sel(mark(x2), mark(x3))), MARK(from(z0)))
   A__SEL(s(sel(z0, z1)), cons(x1, sel(x2, x3))) -> c3(A__SEL(a__sel(mark(z0), mark(z1)), a__sel(mark(x2), mark(x3))), MARK(sel(z0, z1)))
   A__SEL(s(s(z0)), cons(x1, sel(x2, x3))) -> c3(A__SEL(s(mark(z0)), a__sel(mark(x2), mark(x3))), MARK(s(z0)))
   A__SEL(s(x0), cons(x1, sel(x2, x3))) -> c3(MARK(x0))
   A__SEL(s(cons(z0, z1)), cons(x1, sel(x2, x3))) -> c3(MARK(cons(z0, z1)))
   A__SEL(s(0), cons(x1, sel(x2, x3))) -> c3(A__SEL(0, a__sel(mark(x2), mark(x3))))
   A__SEL(s(x0), cons(x1, cons(from(z0), x3))) -> c3(A__SEL(mark(x0), cons(a__from(mark(z0)), x3)), MARK(x0))
   A__SEL(s(x0), cons(x1, cons(sel(z0, z1), x3))) -> c3(A__SEL(mark(x0), cons(a__sel(mark(z0), mark(z1)), x3)), MARK(x0))
   A__SEL(s(x0), cons(x1, cons(cons(z0, z1), x3))) -> c3(A__SEL(mark(x0), cons(cons(mark(z0), z1), x3)), MARK(x0))
   A__SEL(s(x0), cons(x1, cons(s(z0), x3))) -> c3(A__SEL(mark(x0), cons(s(mark(z0)), x3)), MARK(x0))
   A__SEL(s(x0), cons(x1, cons(0, x3))) -> c3(A__SEL(mark(x0), cons(0, x3)), MARK(x0))
   A__SEL(s(from(z0)), cons(x1, cons(x2, x3))) -> c3(A__SEL(a__from(mark(z0)), cons(mark(x2), x3)), MARK(from(z0)))
   A__SEL(s(sel(z0, z1)), cons(x1, cons(x2, x3))) -> c3(A__SEL(a__sel(mark(z0), mark(z1)), cons(mark(x2), x3)), MARK(sel(z0, z1)))
   A__SEL(s(s(z0)), cons(x1, cons(x2, x3))) -> c3(A__SEL(s(mark(z0)), cons(mark(x2), x3)), MARK(s(z0)))
   A__SEL(s(cons(z0, z1)), cons(x1, cons(x2, x3))) -> c3(MARK(cons(z0, z1)))
   A__SEL(s(0), cons(x1, cons(x2, x3))) -> c3(A__SEL(0, cons(mark(x2), x3)))
   A__SEL(s(from(from(z0))), cons(x1, x2)) -> c3(A__SEL(a__from(a__from(mark(z0))), mark(x2)), MARK(from(from(z0))))
   A__SEL(s(from(sel(z0, z1))), cons(x1, x2)) -> c3(A__SEL(a__from(a__sel(mark(z0), mark(z1))), mark(x2)), MARK(from(sel(z0, z1))))
   A__SEL(s(from(cons(z0, z1))), cons(x1, x2)) -> c3(A__SEL(a__from(cons(mark(z0), z1)), mark(x2)), MARK(from(cons(z0, z1))))
   A__SEL(s(from(s(z0))), cons(x1, x2)) -> c3(A__SEL(a__from(s(mark(z0))), mark(x2)), MARK(from(s(z0))))
   A__SEL(s(from(0)), cons(x1, x2)) -> c3(A__SEL(a__from(0), mark(x2)), MARK(from(0)))
   A__SEL(s(from(x0)), cons(x1, x2)) -> c3(MARK(from(x0)))
   A__SEL(s(from(x0)), cons(x1, s(z0))) -> c3(MARK(from(x0)))
   A__SEL(s(from(x0)), cons(x1, 0)) -> c3(MARK(from(x0)))
   A__SEL(s(sel(x0, from(z0))), cons(x2, x3)) -> c3(A__SEL(a__sel(mark(x0), a__from(mark(z0))), mark(x3)), MARK(sel(x0, from(z0))))
   A__SEL(s(sel(x0, sel(z0, z1))), cons(x2, x3)) -> c3(A__SEL(a__sel(mark(x0), a__sel(mark(z0), mark(z1))), mark(x3)), MARK(sel(x0, sel(z0, z1))))
   A__SEL(s(sel(x0, cons(z0, z1))), cons(x2, x3)) -> c3(A__SEL(a__sel(mark(x0), cons(mark(z0), z1)), mark(x3)), MARK(sel(x0, cons(z0, z1))))
   A__SEL(s(sel(x0, s(z0))), cons(x2, x3)) -> c3(A__SEL(a__sel(mark(x0), s(mark(z0))), mark(x3)), MARK(sel(x0, s(z0))))
   A__SEL(s(sel(x0, 0)), cons(x2, x3)) -> c3(A__SEL(a__sel(mark(x0), 0), mark(x3)), MARK(sel(x0, 0)))
   A__SEL(s(sel(from(z0), x1)), cons(x2, x3)) -> c3(A__SEL(a__sel(a__from(mark(z0)), mark(x1)), mark(x3)), MARK(sel(from(z0), x1)))
   A__SEL(s(sel(sel(z0, z1), x1)), cons(x2, x3)) -> c3(A__SEL(a__sel(a__sel(mark(z0), mark(z1)), mark(x1)), mark(x3)), MARK(sel(sel(z0, z1), x1)))
   A__SEL(s(sel(cons(z0, z1), x1)), cons(x2, x3)) -> c3(A__SEL(a__sel(cons(mark(z0), z1), mark(x1)), mark(x3)), MARK(sel(cons(z0, z1), x1)))
   A__SEL(s(sel(s(z0), x1)), cons(x2, x3)) -> c3(A__SEL(a__sel(s(mark(z0)), mark(x1)), mark(x3)), MARK(sel(s(z0), x1)))
   A__SEL(s(sel(0, x1)), cons(x2, x3)) -> c3(A__SEL(a__sel(0, mark(x1)), mark(x3)), MARK(sel(0, x1)))
   A__SEL(s(sel(x0, x1)), cons(x2, s(z0))) -> c3(MARK(sel(x0, x1)))
   A__SEL(s(sel(x0, x1)), cons(x2, 0)) -> c3(MARK(sel(x0, x1)))
   A__SEL(s(sel(x0, x1)), cons(x2, x3)) -> c3(MARK(sel(x0, x1)))
   A__SEL(s(s(from(z0))), cons(x1, x2)) -> c3(A__SEL(s(a__from(mark(z0))), mark(x2)), MARK(s(from(z0))))
   A__SEL(s(s(sel(z0, z1))), cons(x1, x2)) -> c3(A__SEL(s(a__sel(mark(z0), mark(z1))), mark(x2)), MARK(s(sel(z0, z1))))
   A__SEL(s(s(cons(z0, z1))), cons(x1, x2)) -> c3(A__SEL(s(cons(mark(z0), z1)), mark(x2)), MARK(s(cons(z0, z1))))
   A__SEL(s(s(s(z0))), cons(x1, x2)) -> c3(A__SEL(s(s(mark(z0))), mark(x2)), MARK(s(s(z0))))
   A__SEL(s(s(0)), cons(x1, x2)) -> c3(A__SEL(s(0), mark(x2)), MARK(s(0)))
   A__SEL(s(s(x0)), cons(x1, x2)) -> c3(MARK(s(x0)))
   A__SEL(s(s(x0)), cons(x1, s(z0))) -> c3(MARK(s(x0)))
   A__SEL(s(s(x0)), cons(x1, 0)) -> c3(MARK(s(x0)))
   A__SEL(s(x0), cons(x1, from(x2))) -> c4(A__SEL(mark(x0), cons(mark(mark(x2)), from(s(mark(x2))))), MARK(from(x2)))
   A__SEL(s(x0), cons(x1, from(from(z0)))) -> c4(A__SEL(mark(x0), a__from(a__from(mark(z0)))), MARK(from(from(z0))))
   A__SEL(s(x0), cons(x1, from(sel(z0, z1)))) -> c4(A__SEL(mark(x0), a__from(a__sel(mark(z0), mark(z1)))), MARK(from(sel(z0, z1))))
   A__SEL(s(x0), cons(x1, from(cons(z0, z1)))) -> c4(A__SEL(mark(x0), a__from(cons(mark(z0), z1))), MARK(from(cons(z0, z1))))
   A__SEL(s(x0), cons(x1, from(s(z0)))) -> c4(A__SEL(mark(x0), a__from(s(mark(z0)))), MARK(from(s(z0))))
   A__SEL(s(x0), cons(x1, from(0))) -> c4(A__SEL(mark(x0), a__from(0)), MARK(from(0)))
   A__SEL(s(from(z0)), cons(x1, from(x2))) -> c4(A__SEL(a__from(mark(z0)), a__from(mark(x2))), MARK(from(x2)))
   A__SEL(s(sel(z0, z1)), cons(x1, from(x2))) -> c4(A__SEL(a__sel(mark(z0), mark(z1)), a__from(mark(x2))), MARK(from(x2)))
   A__SEL(s(s(z0)), cons(x1, from(x2))) -> c4(A__SEL(s(mark(z0)), a__from(mark(x2))), MARK(from(x2)))
   A__SEL(s(0), cons(x1, from(x2))) -> c4(A__SEL(0, a__from(mark(x2))), MARK(from(x2)))
   A__SEL(s(x0), cons(x1, from(x2))) -> c4(MARK(from(x2)))
   A__SEL(s(cons(z0, z1)), cons(x1, from(x2))) -> c4(MARK(from(x2)))
   A__SEL(s(x0), cons(x1, sel(x2, from(z0)))) -> c4(A__SEL(mark(x0), a__sel(mark(x2), a__from(mark(z0)))), MARK(sel(x2, from(z0))))
   A__SEL(s(x0), cons(x1, sel(x2, sel(z0, z1)))) -> c4(A__SEL(mark(x0), a__sel(mark(x2), a__sel(mark(z0), mark(z1)))), MARK(sel(x2, sel(z0, z1))))
   A__SEL(s(x0), cons(x1, sel(x2, cons(z0, z1)))) -> c4(A__SEL(mark(x0), a__sel(mark(x2), cons(mark(z0), z1))), MARK(sel(x2, cons(z0, z1))))
   A__SEL(s(x0), cons(x1, sel(x2, s(z0)))) -> c4(A__SEL(mark(x0), a__sel(mark(x2), s(mark(z0)))), MARK(sel(x2, s(z0))))
   A__SEL(s(x0), cons(x1, sel(x2, 0))) -> c4(A__SEL(mark(x0), a__sel(mark(x2), 0)), MARK(sel(x2, 0)))
   A__SEL(s(x0), cons(x1, sel(from(z0), x3))) -> c4(A__SEL(mark(x0), a__sel(a__from(mark(z0)), mark(x3))), MARK(sel(from(z0), x3)))
   A__SEL(s(x0), cons(x1, sel(sel(z0, z1), x3))) -> c4(A__SEL(mark(x0), a__sel(a__sel(mark(z0), mark(z1)), mark(x3))), MARK(sel(sel(z0, z1), x3)))
   A__SEL(s(x0), cons(x1, sel(cons(z0, z1), x3))) -> c4(A__SEL(mark(x0), a__sel(cons(mark(z0), z1), mark(x3))), MARK(sel(cons(z0, z1), x3)))
   A__SEL(s(x0), cons(x1, sel(s(z0), x3))) -> c4(A__SEL(mark(x0), a__sel(s(mark(z0)), mark(x3))), MARK(sel(s(z0), x3)))
   A__SEL(s(x0), cons(x1, sel(0, x3))) -> c4(A__SEL(mark(x0), a__sel(0, mark(x3))), MARK(sel(0, x3)))
   A__SEL(s(from(z0)), cons(x1, sel(x2, x3))) -> c4(A__SEL(a__from(mark(z0)), a__sel(mark(x2), mark(x3))), MARK(sel(x2, x3)))
   A__SEL(s(sel(z0, z1)), cons(x1, sel(x2, x3))) -> c4(A__SEL(a__sel(mark(z0), mark(z1)), a__sel(mark(x2), mark(x3))), MARK(sel(x2, x3)))
   A__SEL(s(s(z0)), cons(x1, sel(x2, x3))) -> c4(A__SEL(s(mark(z0)), a__sel(mark(x2), mark(x3))), MARK(sel(x2, x3)))
   A__SEL(s(0), cons(x1, sel(x2, x3))) -> c4(A__SEL(0, a__sel(mark(x2), mark(x3))), MARK(sel(x2, x3)))
   A__SEL(s(x0), cons(x1, sel(x2, x3))) -> c4(MARK(sel(x2, x3)))
   A__SEL(s(cons(z0, z1)), cons(x1, sel(x2, x3))) -> c4(MARK(sel(x2, x3)))
   A__SEL(s(x0), cons(x1, cons(from(z0), x3))) -> c4(A__SEL(mark(x0), cons(a__from(mark(z0)), x3)), MARK(cons(from(z0), x3)))
   A__SEL(s(x0), cons(x1, cons(sel(z0, z1), x3))) -> c4(A__SEL(mark(x0), cons(a__sel(mark(z0), mark(z1)), x3)), MARK(cons(sel(z0, z1), x3)))
   A__SEL(s(x0), cons(x1, cons(cons(z0, z1), x3))) -> c4(A__SEL(mark(x0), cons(cons(mark(z0), z1), x3)), MARK(cons(cons(z0, z1), x3)))
   A__SEL(s(x0), cons(x1, cons(s(z0), x3))) -> c4(A__SEL(mark(x0), cons(s(mark(z0)), x3)), MARK(cons(s(z0), x3)))
   A__SEL(s(x0), cons(x1, cons(0, x3))) -> c4(A__SEL(mark(x0), cons(0, x3)), MARK(cons(0, x3)))
   A__SEL(s(from(z0)), cons(x1, cons(x2, x3))) -> c4(A__SEL(a__from(mark(z0)), cons(mark(x2), x3)), MARK(cons(x2, x3)))
   A__SEL(s(sel(z0, z1)), cons(x1, cons(x2, x3))) -> c4(A__SEL(a__sel(mark(z0), mark(z1)), cons(mark(x2), x3)), MARK(cons(x2, x3)))
   A__SEL(s(s(z0)), cons(x1, cons(x2, x3))) -> c4(A__SEL(s(mark(z0)), cons(mark(x2), x3)), MARK(cons(x2, x3)))
   A__SEL(s(0), cons(x1, cons(x2, x3))) -> c4(A__SEL(0, cons(mark(x2), x3)), MARK(cons(x2, x3)))
   A__SEL(s(x0), cons(x1, cons(x2, x3))) -> c4(MARK(cons(x2, x3)))
   A__SEL(s(cons(z0, z1)), cons(x1, cons(x2, x3))) -> c4(MARK(cons(x2, x3)))
   A__SEL(s(from(from(z0))), cons(x1, x2)) -> c4(A__SEL(a__from(a__from(mark(z0))), mark(x2)), MARK(x2))
   A__SEL(s(from(sel(z0, z1))), cons(x1, x2)) -> c4(A__SEL(a__from(a__sel(mark(z0), mark(z1))), mark(x2)), MARK(x2))
   A__SEL(s(from(cons(z0, z1))), cons(x1, x2)) -> c4(A__SEL(a__from(cons(mark(z0), z1)), mark(x2)), MARK(x2))
   A__SEL(s(from(s(z0))), cons(x1, x2)) -> c4(A__SEL(a__from(s(mark(z0))), mark(x2)), MARK(x2))
   A__SEL(s(from(0)), cons(x1, x2)) -> c4(A__SEL(a__from(0), mark(x2)), MARK(x2))
   A__SEL(s(from(x0)), cons(x1, s(z0))) -> c4(MARK(s(z0)))
   A__SEL(s(from(x0)), cons(x1, x2)) -> c4(MARK(x2))
   A__SEL(s(sel(x0, from(z0))), cons(x2, x3)) -> c4(A__SEL(a__sel(mark(x0), a__from(mark(z0))), mark(x3)), MARK(x3))
   A__SEL(s(sel(x0, sel(z0, z1))), cons(x2, x3)) -> c4(A__SEL(a__sel(mark(x0), a__sel(mark(z0), mark(z1))), mark(x3)), MARK(x3))
   A__SEL(s(sel(x0, cons(z0, z1))), cons(x2, x3)) -> c4(A__SEL(a__sel(mark(x0), cons(mark(z0), z1)), mark(x3)), MARK(x3))
   A__SEL(s(sel(x0, s(z0))), cons(x2, x3)) -> c4(A__SEL(a__sel(mark(x0), s(mark(z0))), mark(x3)), MARK(x3))
   A__SEL(s(sel(x0, 0)), cons(x2, x3)) -> c4(A__SEL(a__sel(mark(x0), 0), mark(x3)), MARK(x3))
   A__SEL(s(sel(from(z0), x1)), cons(x2, x3)) -> c4(A__SEL(a__sel(a__from(mark(z0)), mark(x1)), mark(x3)), MARK(x3))
   A__SEL(s(sel(sel(z0, z1), x1)), cons(x2, x3)) -> c4(A__SEL(a__sel(a__sel(mark(z0), mark(z1)), mark(x1)), mark(x3)), MARK(x3))
   A__SEL(s(sel(cons(z0, z1), x1)), cons(x2, x3)) -> c4(A__SEL(a__sel(cons(mark(z0), z1), mark(x1)), mark(x3)), MARK(x3))
   A__SEL(s(sel(s(z0), x1)), cons(x2, x3)) -> c4(A__SEL(a__sel(s(mark(z0)), mark(x1)), mark(x3)), MARK(x3))
   A__SEL(s(sel(0, x1)), cons(x2, x3)) -> c4(A__SEL(a__sel(0, mark(x1)), mark(x3)), MARK(x3))
   A__SEL(s(sel(x0, x1)), cons(x2, s(z0))) -> c4(MARK(s(z0)))
   A__SEL(s(sel(x0, x1)), cons(x2, x3)) -> c4(MARK(x3))
   A__SEL(s(s(from(z0))), cons(x1, x2)) -> c4(A__SEL(s(a__from(mark(z0))), mark(x2)), MARK(x2))
   A__SEL(s(s(sel(z0, z1))), cons(x1, x2)) -> c4(A__SEL(s(a__sel(mark(z0), mark(z1))), mark(x2)), MARK(x2))
   A__SEL(s(s(cons(z0, z1))), cons(x1, x2)) -> c4(A__SEL(s(cons(mark(z0), z1)), mark(x2)), MARK(x2))
   A__SEL(s(s(s(z0))), cons(x1, x2)) -> c4(A__SEL(s(s(mark(z0))), mark(x2)), MARK(x2))
   A__SEL(s(s(0)), cons(x1, x2)) -> c4(A__SEL(s(0), mark(x2)), MARK(x2))
   A__SEL(s(s(x0)), cons(x1, s(z0))) -> c4(MARK(s(z0)))
   A__SEL(s(0), cons(x0, s(z0))) -> c4(MARK(s(z0)))
   MARK(sel(x0, from(x1))) -> c7(A__SEL(mark(x0), cons(mark(mark(x1)), from(s(mark(x1))))), MARK(x0))
   MARK(sel(x0, from(from(z0)))) -> c7(A__SEL(mark(x0), a__from(a__from(mark(z0)))), MARK(x0))
   MARK(sel(x0, from(sel(z0, z1)))) -> c7(A__SEL(mark(x0), a__from(a__sel(mark(z0), mark(z1)))), MARK(x0))
   MARK(sel(x0, from(cons(z0, z1)))) -> c7(A__SEL(mark(x0), a__from(cons(mark(z0), z1))), MARK(x0))
   MARK(sel(x0, from(s(z0)))) -> c7(A__SEL(mark(x0), a__from(s(mark(z0)))), MARK(x0))
   MARK(sel(x0, from(0))) -> c7(A__SEL(mark(x0), a__from(0)), MARK(x0))
   MARK(sel(from(z0), from(x1))) -> c7(A__SEL(a__from(mark(z0)), a__from(mark(x1))), MARK(from(z0)))
   MARK(sel(sel(z0, z1), from(x1))) -> c7(A__SEL(a__sel(mark(z0), mark(z1)), a__from(mark(x1))), MARK(sel(z0, z1)))
   MARK(sel(s(z0), from(x1))) -> c7(A__SEL(s(mark(z0)), a__from(mark(x1))), MARK(s(z0)))
   MARK(sel(x0, from(x1))) -> c7(MARK(x0))
   MARK(sel(cons(z0, z1), from(x1))) -> c7(MARK(cons(z0, z1)))
   MARK(sel(0, from(x1))) -> c7(A__SEL(0, a__from(mark(x1))))
   MARK(sel(x0, sel(x1, from(z0)))) -> c7(A__SEL(mark(x0), a__sel(mark(x1), a__from(mark(z0)))), MARK(x0))
   MARK(sel(x0, sel(x1, sel(z0, z1)))) -> c7(A__SEL(mark(x0), a__sel(mark(x1), a__sel(mark(z0), mark(z1)))), MARK(x0))
   MARK(sel(x0, sel(x1, cons(z0, z1)))) -> c7(A__SEL(mark(x0), a__sel(mark(x1), cons(mark(z0), z1))), MARK(x0))
   MARK(sel(x0, sel(x1, s(z0)))) -> c7(A__SEL(mark(x0), a__sel(mark(x1), s(mark(z0)))), MARK(x0))
   MARK(sel(x0, sel(x1, 0))) -> c7(A__SEL(mark(x0), a__sel(mark(x1), 0)), MARK(x0))
   MARK(sel(x0, sel(from(z0), x2))) -> c7(A__SEL(mark(x0), a__sel(a__from(mark(z0)), mark(x2))), MARK(x0))
   MARK(sel(x0, sel(sel(z0, z1), x2))) -> c7(A__SEL(mark(x0), a__sel(a__sel(mark(z0), mark(z1)), mark(x2))), MARK(x0))
   MARK(sel(x0, sel(cons(z0, z1), x2))) -> c7(A__SEL(mark(x0), a__sel(cons(mark(z0), z1), mark(x2))), MARK(x0))
   MARK(sel(x0, sel(s(z0), x2))) -> c7(A__SEL(mark(x0), a__sel(s(mark(z0)), mark(x2))), MARK(x0))
   MARK(sel(x0, sel(0, x2))) -> c7(A__SEL(mark(x0), a__sel(0, mark(x2))), MARK(x0))
   MARK(sel(from(z0), sel(x1, x2))) -> c7(A__SEL(a__from(mark(z0)), a__sel(mark(x1), mark(x2))), MARK(from(z0)))
   MARK(sel(sel(z0, z1), sel(x1, x2))) -> c7(A__SEL(a__sel(mark(z0), mark(z1)), a__sel(mark(x1), mark(x2))), MARK(sel(z0, z1)))
   MARK(sel(s(z0), sel(x1, x2))) -> c7(A__SEL(s(mark(z0)), a__sel(mark(x1), mark(x2))), MARK(s(z0)))
   MARK(sel(x0, sel(x1, x2))) -> c7(MARK(x0))
   MARK(sel(cons(z0, z1), sel(x1, x2))) -> c7(MARK(cons(z0, z1)))
   MARK(sel(0, sel(x1, x2))) -> c7(A__SEL(0, a__sel(mark(x1), mark(x2))))
   MARK(sel(x0, cons(from(z0), x2))) -> c7(A__SEL(mark(x0), cons(a__from(mark(z0)), x2)), MARK(x0))
   MARK(sel(x0, cons(sel(z0, z1), x2))) -> c7(A__SEL(mark(x0), cons(a__sel(mark(z0), mark(z1)), x2)), MARK(x0))
   MARK(sel(x0, cons(cons(z0, z1), x2))) -> c7(A__SEL(mark(x0), cons(cons(mark(z0), z1), x2)), MARK(x0))
   MARK(sel(x0, cons(s(z0), x2))) -> c7(A__SEL(mark(x0), cons(s(mark(z0)), x2)), MARK(x0))
   MARK(sel(x0, cons(0, x2))) -> c7(A__SEL(mark(x0), cons(0, x2)), MARK(x0))
   MARK(sel(from(z0), cons(x1, x2))) -> c7(A__SEL(a__from(mark(z0)), cons(mark(x1), x2)), MARK(from(z0)))
   MARK(sel(sel(z0, z1), cons(x1, x2))) -> c7(A__SEL(a__sel(mark(z0), mark(z1)), cons(mark(x1), x2)), MARK(sel(z0, z1)))
   MARK(sel(s(z0), cons(x1, x2))) -> c7(A__SEL(s(mark(z0)), cons(mark(x1), x2)), MARK(s(z0)))
   MARK(sel(cons(z0, z1), cons(x1, x2))) -> c7(MARK(cons(z0, z1)))
   MARK(sel(0, cons(x1, x2))) -> c7(A__SEL(0, cons(mark(x1), x2)))
   MARK(sel(from(from(z0)), x1)) -> c7(A__SEL(a__from(a__from(mark(z0))), mark(x1)), MARK(from(from(z0))))
   MARK(sel(from(sel(z0, z1)), x1)) -> c7(A__SEL(a__from(a__sel(mark(z0), mark(z1))), mark(x1)), MARK(from(sel(z0, z1))))
   MARK(sel(from(cons(z0, z1)), x1)) -> c7(A__SEL(a__from(cons(mark(z0), z1)), mark(x1)), MARK(from(cons(z0, z1))))
   MARK(sel(from(s(z0)), x1)) -> c7(A__SEL(a__from(s(mark(z0))), mark(x1)), MARK(from(s(z0))))
   MARK(sel(from(0), x1)) -> c7(A__SEL(a__from(0), mark(x1)), MARK(from(0)))
   MARK(sel(from(x0), x1)) -> c7(MARK(from(x0)))
   MARK(sel(from(x0), s(z0))) -> c7(MARK(from(x0)))
   MARK(sel(from(x0), 0)) -> c7(MARK(from(x0)))
K tuples:none
Defined Rule Symbols:   a__from_1, a__sel_2, mark_1

Defined Pair Symbols:   A__FROM_1, A__SEL_2, MARK_1

Compound Symbols:   c_1, c2_1, c6_2, c9_1, c10_1, c3_1, c4_1, c7_2, c7_1, c8_2, c8_1, c3_2, c4_2


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

(157) CdtNarrowingProof (BOTH BOUNDS(ID, ID))
Use narrowing to replace MARK(sel(sel(z0, z1), x1)) -> c7(A__SEL(a__sel(mark(z0), mark(z1)), mark(x1)), MARK(sel(z0, z1))) by 
   MARK(sel(sel(x0, x1), from(z0))) -> c7(A__SEL(a__sel(mark(x0), mark(x1)), a__from(mark(z0))), MARK(sel(x0, x1)))
   MARK(sel(sel(x0, x1), sel(z0, z1))) -> c7(A__SEL(a__sel(mark(x0), mark(x1)), a__sel(mark(z0), mark(z1))), MARK(sel(x0, x1)))
   MARK(sel(sel(x0, x1), cons(z0, z1))) -> c7(A__SEL(a__sel(mark(x0), mark(x1)), cons(mark(z0), z1)), MARK(sel(x0, x1)))
   MARK(sel(sel(x0, x1), s(z0))) -> c7(A__SEL(a__sel(mark(x0), mark(x1)), s(mark(z0))), MARK(sel(x0, x1)))
   MARK(sel(sel(x0, x1), 0)) -> c7(A__SEL(a__sel(mark(x0), mark(x1)), 0), MARK(sel(x0, x1)))
   MARK(sel(sel(x0, x1), x2)) -> c7(A__SEL(sel(mark(x0), mark(x1)), mark(x2)), MARK(sel(x0, x1)))
   MARK(sel(sel(x0, from(z0)), x2)) -> c7(A__SEL(a__sel(mark(x0), a__from(mark(z0))), mark(x2)), MARK(sel(x0, from(z0))))
   MARK(sel(sel(x0, sel(z0, z1)), x2)) -> c7(A__SEL(a__sel(mark(x0), a__sel(mark(z0), mark(z1))), mark(x2)), MARK(sel(x0, sel(z0, z1))))
   MARK(sel(sel(x0, cons(z0, z1)), x2)) -> c7(A__SEL(a__sel(mark(x0), cons(mark(z0), z1)), mark(x2)), MARK(sel(x0, cons(z0, z1))))
   MARK(sel(sel(x0, s(z0)), x2)) -> c7(A__SEL(a__sel(mark(x0), s(mark(z0))), mark(x2)), MARK(sel(x0, s(z0))))
   MARK(sel(sel(x0, 0), x2)) -> c7(A__SEL(a__sel(mark(x0), 0), mark(x2)), MARK(sel(x0, 0)))
   MARK(sel(sel(from(z0), x1), x2)) -> c7(A__SEL(a__sel(a__from(mark(z0)), mark(x1)), mark(x2)), MARK(sel(from(z0), x1)))
   MARK(sel(sel(sel(z0, z1), x1), x2)) -> c7(A__SEL(a__sel(a__sel(mark(z0), mark(z1)), mark(x1)), mark(x2)), MARK(sel(sel(z0, z1), x1)))
   MARK(sel(sel(cons(z0, z1), x1), x2)) -> c7(A__SEL(a__sel(cons(mark(z0), z1), mark(x1)), mark(x2)), MARK(sel(cons(z0, z1), x1)))
   MARK(sel(sel(s(z0), x1), x2)) -> c7(A__SEL(a__sel(s(mark(z0)), mark(x1)), mark(x2)), MARK(sel(s(z0), x1)))
   MARK(sel(sel(0, x1), x2)) -> c7(A__SEL(a__sel(0, mark(x1)), mark(x2)), MARK(sel(0, x1)))

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

(158)
Obligation:
Complexity Dependency Tuples Problem

Rules:
   a__from(z0) -> cons(mark(z0), from(s(z0)))
   a__from(z0) -> from(z0)
   a__sel(0, cons(z0, z1)) -> mark(z0)
   a__sel(s(z0), cons(z1, z2)) -> a__sel(mark(z0), mark(z2))
   a__sel(z0, z1) -> sel(z0, z1)
   mark(from(z0)) -> a__from(mark(z0))
   mark(sel(z0, z1)) -> a__sel(mark(z0), mark(z1))
   mark(cons(z0, z1)) -> cons(mark(z0), z1)
   mark(s(z0)) -> s(mark(z0))
   mark(0) -> 0
Tuples:
   A__FROM(z0) -> c(MARK(z0))
   A__SEL(0, cons(z0, z1)) -> c2(MARK(z0))
   MARK(from(z0)) -> c6(A__FROM(mark(z0)), MARK(z0))
   MARK(cons(z0, z1)) -> c9(MARK(z0))
   MARK(s(z0)) -> c10(MARK(z0))
   A__SEL(s(x0), cons(x1, s(z0))) -> c3(MARK(x0))
   A__SEL(s(x0), cons(x1, 0)) -> c3(MARK(x0))
   A__SEL(s(cons(z0, z1)), cons(x1, x2)) -> c3(MARK(cons(z0, z1)))
   A__SEL(s(x0), cons(x1, s(z0))) -> c4(MARK(s(z0)))
   A__SEL(s(cons(z0, z1)), cons(x1, x2)) -> c4(MARK(x2))
   MARK(sel(s(z0), x1)) -> c7(A__SEL(s(mark(z0)), mark(x1)), MARK(s(z0)))
   MARK(sel(x0, s(z0))) -> c7(MARK(x0))
   MARK(sel(x0, 0)) -> c7(MARK(x0))
   MARK(sel(cons(z0, z1), x1)) -> c7(MARK(cons(z0, z1)))
   MARK(sel(0, x1)) -> c7(A__SEL(0, mark(x1)))
   MARK(sel(x0, from(z0))) -> c8(A__SEL(mark(x0), a__from(mark(z0))), MARK(from(z0)))
   MARK(sel(x0, sel(z0, z1))) -> c8(A__SEL(mark(x0), a__sel(mark(z0), mark(z1))), MARK(sel(z0, z1)))
   MARK(sel(x0, cons(z0, z1))) -> c8(A__SEL(mark(x0), cons(mark(z0), z1)), MARK(cons(z0, z1)))
   MARK(sel(from(z0), x1)) -> c8(A__SEL(a__from(mark(z0)), mark(x1)), MARK(x1))
   MARK(sel(sel(z0, z1), x1)) -> c8(A__SEL(a__sel(mark(z0), mark(z1)), mark(x1)), MARK(x1))
   MARK(sel(s(z0), x1)) -> c8(A__SEL(s(mark(z0)), mark(x1)), MARK(x1))
   MARK(sel(0, x1)) -> c8(A__SEL(0, mark(x1)), MARK(x1))
   MARK(sel(x0, s(z0))) -> c8(MARK(s(z0)))
   MARK(sel(cons(z0, z1), x1)) -> c8(MARK(x1))
   A__SEL(s(x0), cons(x1, from(x2))) -> c3(A__SEL(mark(x0), cons(mark(mark(x2)), from(s(mark(x2))))), MARK(x0))
   A__SEL(s(x0), cons(x1, from(from(z0)))) -> c3(A__SEL(mark(x0), a__from(a__from(mark(z0)))), MARK(x0))
   A__SEL(s(x0), cons(x1, from(sel(z0, z1)))) -> c3(A__SEL(mark(x0), a__from(a__sel(mark(z0), mark(z1)))), MARK(x0))
   A__SEL(s(x0), cons(x1, from(cons(z0, z1)))) -> c3(A__SEL(mark(x0), a__from(cons(mark(z0), z1))), MARK(x0))
   A__SEL(s(x0), cons(x1, from(s(z0)))) -> c3(A__SEL(mark(x0), a__from(s(mark(z0)))), MARK(x0))
   A__SEL(s(x0), cons(x1, from(0))) -> c3(A__SEL(mark(x0), a__from(0)), MARK(x0))
   A__SEL(s(from(z0)), cons(x1, from(x2))) -> c3(A__SEL(a__from(mark(z0)), a__from(mark(x2))), MARK(from(z0)))
   A__SEL(s(sel(z0, z1)), cons(x1, from(x2))) -> c3(A__SEL(a__sel(mark(z0), mark(z1)), a__from(mark(x2))), MARK(sel(z0, z1)))
   A__SEL(s(s(z0)), cons(x1, from(x2))) -> c3(A__SEL(s(mark(z0)), a__from(mark(x2))), MARK(s(z0)))
   A__SEL(s(x0), cons(x1, from(x2))) -> c3(MARK(x0))
   A__SEL(s(cons(z0, z1)), cons(x1, from(x2))) -> c3(MARK(cons(z0, z1)))
   A__SEL(s(0), cons(x1, from(x2))) -> c3(A__SEL(0, a__from(mark(x2))))
   A__SEL(s(x0), cons(x1, sel(x2, from(z0)))) -> c3(A__SEL(mark(x0), a__sel(mark(x2), a__from(mark(z0)))), MARK(x0))
   A__SEL(s(x0), cons(x1, sel(x2, sel(z0, z1)))) -> c3(A__SEL(mark(x0), a__sel(mark(x2), a__sel(mark(z0), mark(z1)))), MARK(x0))
   A__SEL(s(x0), cons(x1, sel(x2, cons(z0, z1)))) -> c3(A__SEL(mark(x0), a__sel(mark(x2), cons(mark(z0), z1))), MARK(x0))
   A__SEL(s(x0), cons(x1, sel(x2, s(z0)))) -> c3(A__SEL(mark(x0), a__sel(mark(x2), s(mark(z0)))), MARK(x0))
   A__SEL(s(x0), cons(x1, sel(x2, 0))) -> c3(A__SEL(mark(x0), a__sel(mark(x2), 0)), MARK(x0))
   A__SEL(s(x0), cons(x1, sel(from(z0), x3))) -> c3(A__SEL(mark(x0), a__sel(a__from(mark(z0)), mark(x3))), MARK(x0))
   A__SEL(s(x0), cons(x1, sel(sel(z0, z1), x3))) -> c3(A__SEL(mark(x0), a__sel(a__sel(mark(z0), mark(z1)), mark(x3))), MARK(x0))
   A__SEL(s(x0), cons(x1, sel(cons(z0, z1), x3))) -> c3(A__SEL(mark(x0), a__sel(cons(mark(z0), z1), mark(x3))), MARK(x0))
   A__SEL(s(x0), cons(x1, sel(s(z0), x3))) -> c3(A__SEL(mark(x0), a__sel(s(mark(z0)), mark(x3))), MARK(x0))
   A__SEL(s(x0), cons(x1, sel(0, x3))) -> c3(A__SEL(mark(x0), a__sel(0, mark(x3))), MARK(x0))
   A__SEL(s(from(z0)), cons(x1, sel(x2, x3))) -> c3(A__SEL(a__from(mark(z0)), a__sel(mark(x2), mark(x3))), MARK(from(z0)))
   A__SEL(s(sel(z0, z1)), cons(x1, sel(x2, x3))) -> c3(A__SEL(a__sel(mark(z0), mark(z1)), a__sel(mark(x2), mark(x3))), MARK(sel(z0, z1)))
   A__SEL(s(s(z0)), cons(x1, sel(x2, x3))) -> c3(A__SEL(s(mark(z0)), a__sel(mark(x2), mark(x3))), MARK(s(z0)))
   A__SEL(s(x0), cons(x1, sel(x2, x3))) -> c3(MARK(x0))
   A__SEL(s(cons(z0, z1)), cons(x1, sel(x2, x3))) -> c3(MARK(cons(z0, z1)))
   A__SEL(s(0), cons(x1, sel(x2, x3))) -> c3(A__SEL(0, a__sel(mark(x2), mark(x3))))
   A__SEL(s(x0), cons(x1, cons(from(z0), x3))) -> c3(A__SEL(mark(x0), cons(a__from(mark(z0)), x3)), MARK(x0))
   A__SEL(s(x0), cons(x1, cons(sel(z0, z1), x3))) -> c3(A__SEL(mark(x0), cons(a__sel(mark(z0), mark(z1)), x3)), MARK(x0))
   A__SEL(s(x0), cons(x1, cons(cons(z0, z1), x3))) -> c3(A__SEL(mark(x0), cons(cons(mark(z0), z1), x3)), MARK(x0))
   A__SEL(s(x0), cons(x1, cons(s(z0), x3))) -> c3(A__SEL(mark(x0), cons(s(mark(z0)), x3)), MARK(x0))
   A__SEL(s(x0), cons(x1, cons(0, x3))) -> c3(A__SEL(mark(x0), cons(0, x3)), MARK(x0))
   A__SEL(s(from(z0)), cons(x1, cons(x2, x3))) -> c3(A__SEL(a__from(mark(z0)), cons(mark(x2), x3)), MARK(from(z0)))
   A__SEL(s(sel(z0, z1)), cons(x1, cons(x2, x3))) -> c3(A__SEL(a__sel(mark(z0), mark(z1)), cons(mark(x2), x3)), MARK(sel(z0, z1)))
   A__SEL(s(s(z0)), cons(x1, cons(x2, x3))) -> c3(A__SEL(s(mark(z0)), cons(mark(x2), x3)), MARK(s(z0)))
   A__SEL(s(cons(z0, z1)), cons(x1, cons(x2, x3))) -> c3(MARK(cons(z0, z1)))
   A__SEL(s(0), cons(x1, cons(x2, x3))) -> c3(A__SEL(0, cons(mark(x2), x3)))
   A__SEL(s(from(from(z0))), cons(x1, x2)) -> c3(A__SEL(a__from(a__from(mark(z0))), mark(x2)), MARK(from(from(z0))))
   A__SEL(s(from(sel(z0, z1))), cons(x1, x2)) -> c3(A__SEL(a__from(a__sel(mark(z0), mark(z1))), mark(x2)), MARK(from(sel(z0, z1))))
   A__SEL(s(from(cons(z0, z1))), cons(x1, x2)) -> c3(A__SEL(a__from(cons(mark(z0), z1)), mark(x2)), MARK(from(cons(z0, z1))))
   A__SEL(s(from(s(z0))), cons(x1, x2)) -> c3(A__SEL(a__from(s(mark(z0))), mark(x2)), MARK(from(s(z0))))
   A__SEL(s(from(0)), cons(x1, x2)) -> c3(A__SEL(a__from(0), mark(x2)), MARK(from(0)))
   A__SEL(s(from(x0)), cons(x1, x2)) -> c3(MARK(from(x0)))
   A__SEL(s(from(x0)), cons(x1, s(z0))) -> c3(MARK(from(x0)))
   A__SEL(s(from(x0)), cons(x1, 0)) -> c3(MARK(from(x0)))
   A__SEL(s(sel(x0, from(z0))), cons(x2, x3)) -> c3(A__SEL(a__sel(mark(x0), a__from(mark(z0))), mark(x3)), MARK(sel(x0, from(z0))))
   A__SEL(s(sel(x0, sel(z0, z1))), cons(x2, x3)) -> c3(A__SEL(a__sel(mark(x0), a__sel(mark(z0), mark(z1))), mark(x3)), MARK(sel(x0, sel(z0, z1))))
   A__SEL(s(sel(x0, cons(z0, z1))), cons(x2, x3)) -> c3(A__SEL(a__sel(mark(x0), cons(mark(z0), z1)), mark(x3)), MARK(sel(x0, cons(z0, z1))))
   A__SEL(s(sel(x0, s(z0))), cons(x2, x3)) -> c3(A__SEL(a__sel(mark(x0), s(mark(z0))), mark(x3)), MARK(sel(x0, s(z0))))
   A__SEL(s(sel(x0, 0)), cons(x2, x3)) -> c3(A__SEL(a__sel(mark(x0), 0), mark(x3)), MARK(sel(x0, 0)))
   A__SEL(s(sel(from(z0), x1)), cons(x2, x3)) -> c3(A__SEL(a__sel(a__from(mark(z0)), mark(x1)), mark(x3)), MARK(sel(from(z0), x1)))
   A__SEL(s(sel(sel(z0, z1), x1)), cons(x2, x3)) -> c3(A__SEL(a__sel(a__sel(mark(z0), mark(z1)), mark(x1)), mark(x3)), MARK(sel(sel(z0, z1), x1)))
   A__SEL(s(sel(cons(z0, z1), x1)), cons(x2, x3)) -> c3(A__SEL(a__sel(cons(mark(z0), z1), mark(x1)), mark(x3)), MARK(sel(cons(z0, z1), x1)))
   A__SEL(s(sel(s(z0), x1)), cons(x2, x3)) -> c3(A__SEL(a__sel(s(mark(z0)), mark(x1)), mark(x3)), MARK(sel(s(z0), x1)))
   A__SEL(s(sel(0, x1)), cons(x2, x3)) -> c3(A__SEL(a__sel(0, mark(x1)), mark(x3)), MARK(sel(0, x1)))
   A__SEL(s(sel(x0, x1)), cons(x2, s(z0))) -> c3(MARK(sel(x0, x1)))
   A__SEL(s(sel(x0, x1)), cons(x2, 0)) -> c3(MARK(sel(x0, x1)))
   A__SEL(s(sel(x0, x1)), cons(x2, x3)) -> c3(MARK(sel(x0, x1)))
   A__SEL(s(s(from(z0))), cons(x1, x2)) -> c3(A__SEL(s(a__from(mark(z0))), mark(x2)), MARK(s(from(z0))))
   A__SEL(s(s(sel(z0, z1))), cons(x1, x2)) -> c3(A__SEL(s(a__sel(mark(z0), mark(z1))), mark(x2)), MARK(s(sel(z0, z1))))
   A__SEL(s(s(cons(z0, z1))), cons(x1, x2)) -> c3(A__SEL(s(cons(mark(z0), z1)), mark(x2)), MARK(s(cons(z0, z1))))
   A__SEL(s(s(s(z0))), cons(x1, x2)) -> c3(A__SEL(s(s(mark(z0))), mark(x2)), MARK(s(s(z0))))
   A__SEL(s(s(0)), cons(x1, x2)) -> c3(A__SEL(s(0), mark(x2)), MARK(s(0)))
   A__SEL(s(s(x0)), cons(x1, x2)) -> c3(MARK(s(x0)))
   A__SEL(s(s(x0)), cons(x1, s(z0))) -> c3(MARK(s(x0)))
   A__SEL(s(s(x0)), cons(x1, 0)) -> c3(MARK(s(x0)))
   A__SEL(s(x0), cons(x1, from(x2))) -> c4(A__SEL(mark(x0), cons(mark(mark(x2)), from(s(mark(x2))))), MARK(from(x2)))
   A__SEL(s(x0), cons(x1, from(from(z0)))) -> c4(A__SEL(mark(x0), a__from(a__from(mark(z0)))), MARK(from(from(z0))))
   A__SEL(s(x0), cons(x1, from(sel(z0, z1)))) -> c4(A__SEL(mark(x0), a__from(a__sel(mark(z0), mark(z1)))), MARK(from(sel(z0, z1))))
   A__SEL(s(x0), cons(x1, from(cons(z0, z1)))) -> c4(A__SEL(mark(x0), a__from(cons(mark(z0), z1))), MARK(from(cons(z0, z1))))
   A__SEL(s(x0), cons(x1, from(s(z0)))) -> c4(A__SEL(mark(x0), a__from(s(mark(z0)))), MARK(from(s(z0))))
   A__SEL(s(x0), cons(x1, from(0))) -> c4(A__SEL(mark(x0), a__from(0)), MARK(from(0)))
   A__SEL(s(from(z0)), cons(x1, from(x2))) -> c4(A__SEL(a__from(mark(z0)), a__from(mark(x2))), MARK(from(x2)))
   A__SEL(s(sel(z0, z1)), cons(x1, from(x2))) -> c4(A__SEL(a__sel(mark(z0), mark(z1)), a__from(mark(x2))), MARK(from(x2)))
   A__SEL(s(s(z0)), cons(x1, from(x2))) -> c4(A__SEL(s(mark(z0)), a__from(mark(x2))), MARK(from(x2)))
   A__SEL(s(0), cons(x1, from(x2))) -> c4(A__SEL(0, a__from(mark(x2))), MARK(from(x2)))
   A__SEL(s(x0), cons(x1, from(x2))) -> c4(MARK(from(x2)))
   A__SEL(s(cons(z0, z1)), cons(x1, from(x2))) -> c4(MARK(from(x2)))
   A__SEL(s(x0), cons(x1, sel(x2, from(z0)))) -> c4(A__SEL(mark(x0), a__sel(mark(x2), a__from(mark(z0)))), MARK(sel(x2, from(z0))))
   A__SEL(s(x0), cons(x1, sel(x2, sel(z0, z1)))) -> c4(A__SEL(mark(x0), a__sel(mark(x2), a__sel(mark(z0), mark(z1)))), MARK(sel(x2, sel(z0, z1))))
   A__SEL(s(x0), cons(x1, sel(x2, cons(z0, z1)))) -> c4(A__SEL(mark(x0), a__sel(mark(x2), cons(mark(z0), z1))), MARK(sel(x2, cons(z0, z1))))
   A__SEL(s(x0), cons(x1, sel(x2, s(z0)))) -> c4(A__SEL(mark(x0), a__sel(mark(x2), s(mark(z0)))), MARK(sel(x2, s(z0))))
   A__SEL(s(x0), cons(x1, sel(x2, 0))) -> c4(A__SEL(mark(x0), a__sel(mark(x2), 0)), MARK(sel(x2, 0)))
   A__SEL(s(x0), cons(x1, sel(from(z0), x3))) -> c4(A__SEL(mark(x0), a__sel(a__from(mark(z0)), mark(x3))), MARK(sel(from(z0), x3)))
   A__SEL(s(x0), cons(x1, sel(sel(z0, z1), x3))) -> c4(A__SEL(mark(x0), a__sel(a__sel(mark(z0), mark(z1)), mark(x3))), MARK(sel(sel(z0, z1), x3)))
   A__SEL(s(x0), cons(x1, sel(cons(z0, z1), x3))) -> c4(A__SEL(mark(x0), a__sel(cons(mark(z0), z1), mark(x3))), MARK(sel(cons(z0, z1), x3)))
   A__SEL(s(x0), cons(x1, sel(s(z0), x3))) -> c4(A__SEL(mark(x0), a__sel(s(mark(z0)), mark(x3))), MARK(sel(s(z0), x3)))
   A__SEL(s(x0), cons(x1, sel(0, x3))) -> c4(A__SEL(mark(x0), a__sel(0, mark(x3))), MARK(sel(0, x3)))
   A__SEL(s(from(z0)), cons(x1, sel(x2, x3))) -> c4(A__SEL(a__from(mark(z0)), a__sel(mark(x2), mark(x3))), MARK(sel(x2, x3)))
   A__SEL(s(sel(z0, z1)), cons(x1, sel(x2, x3))) -> c4(A__SEL(a__sel(mark(z0), mark(z1)), a__sel(mark(x2), mark(x3))), MARK(sel(x2, x3)))
   A__SEL(s(s(z0)), cons(x1, sel(x2, x3))) -> c4(A__SEL(s(mark(z0)), a__sel(mark(x2), mark(x3))), MARK(sel(x2, x3)))
   A__SEL(s(0), cons(x1, sel(x2, x3))) -> c4(A__SEL(0, a__sel(mark(x2), mark(x3))), MARK(sel(x2, x3)))
   A__SEL(s(x0), cons(x1, sel(x2, x3))) -> c4(MARK(sel(x2, x3)))
   A__SEL(s(cons(z0, z1)), cons(x1, sel(x2, x3))) -> c4(MARK(sel(x2, x3)))
   A__SEL(s(x0), cons(x1, cons(from(z0), x3))) -> c4(A__SEL(mark(x0), cons(a__from(mark(z0)), x3)), MARK(cons(from(z0), x3)))
   A__SEL(s(x0), cons(x1, cons(sel(z0, z1), x3))) -> c4(A__SEL(mark(x0), cons(a__sel(mark(z0), mark(z1)), x3)), MARK(cons(sel(z0, z1), x3)))
   A__SEL(s(x0), cons(x1, cons(cons(z0, z1), x3))) -> c4(A__SEL(mark(x0), cons(cons(mark(z0), z1), x3)), MARK(cons(cons(z0, z1), x3)))
   A__SEL(s(x0), cons(x1, cons(s(z0), x3))) -> c4(A__SEL(mark(x0), cons(s(mark(z0)), x3)), MARK(cons(s(z0), x3)))
   A__SEL(s(x0), cons(x1, cons(0, x3))) -> c4(A__SEL(mark(x0), cons(0, x3)), MARK(cons(0, x3)))
   A__SEL(s(from(z0)), cons(x1, cons(x2, x3))) -> c4(A__SEL(a__from(mark(z0)), cons(mark(x2), x3)), MARK(cons(x2, x3)))
   A__SEL(s(sel(z0, z1)), cons(x1, cons(x2, x3))) -> c4(A__SEL(a__sel(mark(z0), mark(z1)), cons(mark(x2), x3)), MARK(cons(x2, x3)))
   A__SEL(s(s(z0)), cons(x1, cons(x2, x3))) -> c4(A__SEL(s(mark(z0)), cons(mark(x2), x3)), MARK(cons(x2, x3)))
   A__SEL(s(0), cons(x1, cons(x2, x3))) -> c4(A__SEL(0, cons(mark(x2), x3)), MARK(cons(x2, x3)))
   A__SEL(s(x0), cons(x1, cons(x2, x3))) -> c4(MARK(cons(x2, x3)))
   A__SEL(s(cons(z0, z1)), cons(x1, cons(x2, x3))) -> c4(MARK(cons(x2, x3)))
   A__SEL(s(from(from(z0))), cons(x1, x2)) -> c4(A__SEL(a__from(a__from(mark(z0))), mark(x2)), MARK(x2))
   A__SEL(s(from(sel(z0, z1))), cons(x1, x2)) -> c4(A__SEL(a__from(a__sel(mark(z0), mark(z1))), mark(x2)), MARK(x2))
   A__SEL(s(from(cons(z0, z1))), cons(x1, x2)) -> c4(A__SEL(a__from(cons(mark(z0), z1)), mark(x2)), MARK(x2))
   A__SEL(s(from(s(z0))), cons(x1, x2)) -> c4(A__SEL(a__from(s(mark(z0))), mark(x2)), MARK(x2))
   A__SEL(s(from(0)), cons(x1, x2)) -> c4(A__SEL(a__from(0), mark(x2)), MARK(x2))
   A__SEL(s(from(x0)), cons(x1, s(z0))) -> c4(MARK(s(z0)))
   A__SEL(s(from(x0)), cons(x1, x2)) -> c4(MARK(x2))
   A__SEL(s(sel(x0, from(z0))), cons(x2, x3)) -> c4(A__SEL(a__sel(mark(x0), a__from(mark(z0))), mark(x3)), MARK(x3))
   A__SEL(s(sel(x0, sel(z0, z1))), cons(x2, x3)) -> c4(A__SEL(a__sel(mark(x0), a__sel(mark(z0), mark(z1))), mark(x3)), MARK(x3))
   A__SEL(s(sel(x0, cons(z0, z1))), cons(x2, x3)) -> c4(A__SEL(a__sel(mark(x0), cons(mark(z0), z1)), mark(x3)), MARK(x3))
   A__SEL(s(sel(x0, s(z0))), cons(x2, x3)) -> c4(A__SEL(a__sel(mark(x0), s(mark(z0))), mark(x3)), MARK(x3))
   A__SEL(s(sel(x0, 0)), cons(x2, x3)) -> c4(A__SEL(a__sel(mark(x0), 0), mark(x3)), MARK(x3))
   A__SEL(s(sel(from(z0), x1)), cons(x2, x3)) -> c4(A__SEL(a__sel(a__from(mark(z0)), mark(x1)), mark(x3)), MARK(x3))
   A__SEL(s(sel(sel(z0, z1), x1)), cons(x2, x3)) -> c4(A__SEL(a__sel(a__sel(mark(z0), mark(z1)), mark(x1)), mark(x3)), MARK(x3))
   A__SEL(s(sel(cons(z0, z1), x1)), cons(x2, x3)) -> c4(A__SEL(a__sel(cons(mark(z0), z1), mark(x1)), mark(x3)), MARK(x3))
   A__SEL(s(sel(s(z0), x1)), cons(x2, x3)) -> c4(A__SEL(a__sel(s(mark(z0)), mark(x1)), mark(x3)), MARK(x3))
   A__SEL(s(sel(0, x1)), cons(x2, x3)) -> c4(A__SEL(a__sel(0, mark(x1)), mark(x3)), MARK(x3))
   A__SEL(s(sel(x0, x1)), cons(x2, s(z0))) -> c4(MARK(s(z0)))
   A__SEL(s(sel(x0, x1)), cons(x2, x3)) -> c4(MARK(x3))
   A__SEL(s(s(from(z0))), cons(x1, x2)) -> c4(A__SEL(s(a__from(mark(z0))), mark(x2)), MARK(x2))
   A__SEL(s(s(sel(z0, z1))), cons(x1, x2)) -> c4(A__SEL(s(a__sel(mark(z0), mark(z1))), mark(x2)), MARK(x2))
   A__SEL(s(s(cons(z0, z1))), cons(x1, x2)) -> c4(A__SEL(s(cons(mark(z0), z1)), mark(x2)), MARK(x2))
   A__SEL(s(s(s(z0))), cons(x1, x2)) -> c4(A__SEL(s(s(mark(z0))), mark(x2)), MARK(x2))
   A__SEL(s(s(0)), cons(x1, x2)) -> c4(A__SEL(s(0), mark(x2)), MARK(x2))
   A__SEL(s(s(x0)), cons(x1, s(z0))) -> c4(MARK(s(z0)))
   A__SEL(s(0), cons(x0, s(z0))) -> c4(MARK(s(z0)))
   MARK(sel(x0, from(x1))) -> c7(A__SEL(mark(x0), cons(mark(mark(x1)), from(s(mark(x1))))), MARK(x0))
   MARK(sel(x0, from(from(z0)))) -> c7(A__SEL(mark(x0), a__from(a__from(mark(z0)))), MARK(x0))
   MARK(sel(x0, from(sel(z0, z1)))) -> c7(A__SEL(mark(x0), a__from(a__sel(mark(z0), mark(z1)))), MARK(x0))
   MARK(sel(x0, from(cons(z0, z1)))) -> c7(A__SEL(mark(x0), a__from(cons(mark(z0), z1))), MARK(x0))
   MARK(sel(x0, from(s(z0)))) -> c7(A__SEL(mark(x0), a__from(s(mark(z0)))), MARK(x0))
   MARK(sel(x0, from(0))) -> c7(A__SEL(mark(x0), a__from(0)), MARK(x0))
   MARK(sel(from(z0), from(x1))) -> c7(A__SEL(a__from(mark(z0)), a__from(mark(x1))), MARK(from(z0)))
   MARK(sel(sel(z0, z1), from(x1))) -> c7(A__SEL(a__sel(mark(z0), mark(z1)), a__from(mark(x1))), MARK(sel(z0, z1)))
   MARK(sel(s(z0), from(x1))) -> c7(A__SEL(s(mark(z0)), a__from(mark(x1))), MARK(s(z0)))
   MARK(sel(x0, from(x1))) -> c7(MARK(x0))
   MARK(sel(cons(z0, z1), from(x1))) -> c7(MARK(cons(z0, z1)))
   MARK(sel(0, from(x1))) -> c7(A__SEL(0, a__from(mark(x1))))
   MARK(sel(x0, sel(x1, from(z0)))) -> c7(A__SEL(mark(x0), a__sel(mark(x1), a__from(mark(z0)))), MARK(x0))
   MARK(sel(x0, sel(x1, sel(z0, z1)))) -> c7(A__SEL(mark(x0), a__sel(mark(x1), a__sel(mark(z0), mark(z1)))), MARK(x0))
   MARK(sel(x0, sel(x1, cons(z0, z1)))) -> c7(A__SEL(mark(x0), a__sel(mark(x1), cons(mark(z0), z1))), MARK(x0))
   MARK(sel(x0, sel(x1, s(z0)))) -> c7(A__SEL(mark(x0), a__sel(mark(x1), s(mark(z0)))), MARK(x0))
   MARK(sel(x0, sel(x1, 0))) -> c7(A__SEL(mark(x0), a__sel(mark(x1), 0)), MARK(x0))
   MARK(sel(x0, sel(from(z0), x2))) -> c7(A__SEL(mark(x0), a__sel(a__from(mark(z0)), mark(x2))), MARK(x0))
   MARK(sel(x0, sel(sel(z0, z1), x2))) -> c7(A__SEL(mark(x0), a__sel(a__sel(mark(z0), mark(z1)), mark(x2))), MARK(x0))
   MARK(sel(x0, sel(cons(z0, z1), x2))) -> c7(A__SEL(mark(x0), a__sel(cons(mark(z0), z1), mark(x2))), MARK(x0))
   MARK(sel(x0, sel(s(z0), x2))) -> c7(A__SEL(mark(x0), a__sel(s(mark(z0)), mark(x2))), MARK(x0))
   MARK(sel(x0, sel(0, x2))) -> c7(A__SEL(mark(x0), a__sel(0, mark(x2))), MARK(x0))
   MARK(sel(from(z0), sel(x1, x2))) -> c7(A__SEL(a__from(mark(z0)), a__sel(mark(x1), mark(x2))), MARK(from(z0)))
   MARK(sel(sel(z0, z1), sel(x1, x2))) -> c7(A__SEL(a__sel(mark(z0), mark(z1)), a__sel(mark(x1), mark(x2))), MARK(sel(z0, z1)))
   MARK(sel(s(z0), sel(x1, x2))) -> c7(A__SEL(s(mark(z0)), a__sel(mark(x1), mark(x2))), MARK(s(z0)))
   MARK(sel(x0, sel(x1, x2))) -> c7(MARK(x0))
   MARK(sel(cons(z0, z1), sel(x1, x2))) -> c7(MARK(cons(z0, z1)))
   MARK(sel(0, sel(x1, x2))) -> c7(A__SEL(0, a__sel(mark(x1), mark(x2))))
   MARK(sel(x0, cons(from(z0), x2))) -> c7(A__SEL(mark(x0), cons(a__from(mark(z0)), x2)), MARK(x0))
   MARK(sel(x0, cons(sel(z0, z1), x2))) -> c7(A__SEL(mark(x0), cons(a__sel(mark(z0), mark(z1)), x2)), MARK(x0))
   MARK(sel(x0, cons(cons(z0, z1), x2))) -> c7(A__SEL(mark(x0), cons(cons(mark(z0), z1), x2)), MARK(x0))
   MARK(sel(x0, cons(s(z0), x2))) -> c7(A__SEL(mark(x0), cons(s(mark(z0)), x2)), MARK(x0))
   MARK(sel(x0, cons(0, x2))) -> c7(A__SEL(mark(x0), cons(0, x2)), MARK(x0))
   MARK(sel(from(z0), cons(x1, x2))) -> c7(A__SEL(a__from(mark(z0)), cons(mark(x1), x2)), MARK(from(z0)))
   MARK(sel(sel(z0, z1), cons(x1, x2))) -> c7(A__SEL(a__sel(mark(z0), mark(z1)), cons(mark(x1), x2)), MARK(sel(z0, z1)))
   MARK(sel(s(z0), cons(x1, x2))) -> c7(A__SEL(s(mark(z0)), cons(mark(x1), x2)), MARK(s(z0)))
   MARK(sel(cons(z0, z1), cons(x1, x2))) -> c7(MARK(cons(z0, z1)))
   MARK(sel(0, cons(x1, x2))) -> c7(A__SEL(0, cons(mark(x1), x2)))
   MARK(sel(from(from(z0)), x1)) -> c7(A__SEL(a__from(a__from(mark(z0))), mark(x1)), MARK(from(from(z0))))
   MARK(sel(from(sel(z0, z1)), x1)) -> c7(A__SEL(a__from(a__sel(mark(z0), mark(z1))), mark(x1)), MARK(from(sel(z0, z1))))
   MARK(sel(from(cons(z0, z1)), x1)) -> c7(A__SEL(a__from(cons(mark(z0), z1)), mark(x1)), MARK(from(cons(z0, z1))))
   MARK(sel(from(s(z0)), x1)) -> c7(A__SEL(a__from(s(mark(z0))), mark(x1)), MARK(from(s(z0))))
   MARK(sel(from(0), x1)) -> c7(A__SEL(a__from(0), mark(x1)), MARK(from(0)))
   MARK(sel(from(x0), x1)) -> c7(MARK(from(x0)))
   MARK(sel(from(x0), s(z0))) -> c7(MARK(from(x0)))
   MARK(sel(from(x0), 0)) -> c7(MARK(from(x0)))
   MARK(sel(sel(x0, x1), s(z0))) -> c7(A__SEL(a__sel(mark(x0), mark(x1)), s(mark(z0))), MARK(sel(x0, x1)))
   MARK(sel(sel(x0, x1), 0)) -> c7(A__SEL(a__sel(mark(x0), mark(x1)), 0), MARK(sel(x0, x1)))
   MARK(sel(sel(x0, x1), x2)) -> c7(A__SEL(sel(mark(x0), mark(x1)), mark(x2)), MARK(sel(x0, x1)))
   MARK(sel(sel(x0, from(z0)), x2)) -> c7(A__SEL(a__sel(mark(x0), a__from(mark(z0))), mark(x2)), MARK(sel(x0, from(z0))))
   MARK(sel(sel(x0, sel(z0, z1)), x2)) -> c7(A__SEL(a__sel(mark(x0), a__sel(mark(z0), mark(z1))), mark(x2)), MARK(sel(x0, sel(z0, z1))))
   MARK(sel(sel(x0, cons(z0, z1)), x2)) -> c7(A__SEL(a__sel(mark(x0), cons(mark(z0), z1)), mark(x2)), MARK(sel(x0, cons(z0, z1))))
   MARK(sel(sel(x0, s(z0)), x2)) -> c7(A__SEL(a__sel(mark(x0), s(mark(z0))), mark(x2)), MARK(sel(x0, s(z0))))
   MARK(sel(sel(x0, 0), x2)) -> c7(A__SEL(a__sel(mark(x0), 0), mark(x2)), MARK(sel(x0, 0)))
   MARK(sel(sel(from(z0), x1), x2)) -> c7(A__SEL(a__sel(a__from(mark(z0)), mark(x1)), mark(x2)), MARK(sel(from(z0), x1)))
   MARK(sel(sel(sel(z0, z1), x1), x2)) -> c7(A__SEL(a__sel(a__sel(mark(z0), mark(z1)), mark(x1)), mark(x2)), MARK(sel(sel(z0, z1), x1)))
   MARK(sel(sel(cons(z0, z1), x1), x2)) -> c7(A__SEL(a__sel(cons(mark(z0), z1), mark(x1)), mark(x2)), MARK(sel(cons(z0, z1), x1)))
   MARK(sel(sel(s(z0), x1), x2)) -> c7(A__SEL(a__sel(s(mark(z0)), mark(x1)), mark(x2)), MARK(sel(s(z0), x1)))
   MARK(sel(sel(0, x1), x2)) -> c7(A__SEL(a__sel(0, mark(x1)), mark(x2)), MARK(sel(0, x1)))
S tuples:
   A__FROM(z0) -> c(MARK(z0))
   A__SEL(0, cons(z0, z1)) -> c2(MARK(z0))
   MARK(from(z0)) -> c6(A__FROM(mark(z0)), MARK(z0))
   MARK(cons(z0, z1)) -> c9(MARK(z0))
   MARK(s(z0)) -> c10(MARK(z0))
   A__SEL(s(x0), cons(x1, s(z0))) -> c3(MARK(x0))
   A__SEL(s(x0), cons(x1, 0)) -> c3(MARK(x0))
   A__SEL(s(cons(z0, z1)), cons(x1, x2)) -> c3(MARK(cons(z0, z1)))
   A__SEL(s(x0), cons(x1, s(z0))) -> c4(MARK(s(z0)))
   A__SEL(s(cons(z0, z1)), cons(x1, x2)) -> c4(MARK(x2))
   MARK(sel(s(z0), x1)) -> c7(A__SEL(s(mark(z0)), mark(x1)), MARK(s(z0)))
   MARK(sel(x0, s(z0))) -> c7(MARK(x0))
   MARK(sel(x0, 0)) -> c7(MARK(x0))
   MARK(sel(cons(z0, z1), x1)) -> c7(MARK(cons(z0, z1)))
   MARK(sel(0, x1)) -> c7(A__SEL(0, mark(x1)))
   MARK(sel(x0, from(z0))) -> c8(A__SEL(mark(x0), a__from(mark(z0))), MARK(from(z0)))
   MARK(sel(x0, sel(z0, z1))) -> c8(A__SEL(mark(x0), a__sel(mark(z0), mark(z1))), MARK(sel(z0, z1)))
   MARK(sel(x0, cons(z0, z1))) -> c8(A__SEL(mark(x0), cons(mark(z0), z1)), MARK(cons(z0, z1)))
   MARK(sel(from(z0), x1)) -> c8(A__SEL(a__from(mark(z0)), mark(x1)), MARK(x1))
   MARK(sel(sel(z0, z1), x1)) -> c8(A__SEL(a__sel(mark(z0), mark(z1)), mark(x1)), MARK(x1))
   MARK(sel(s(z0), x1)) -> c8(A__SEL(s(mark(z0)), mark(x1)), MARK(x1))
   MARK(sel(0, x1)) -> c8(A__SEL(0, mark(x1)), MARK(x1))
   MARK(sel(x0, s(z0))) -> c8(MARK(s(z0)))
   MARK(sel(cons(z0, z1), x1)) -> c8(MARK(x1))
   A__SEL(s(x0), cons(x1, from(x2))) -> c3(A__SEL(mark(x0), cons(mark(mark(x2)), from(s(mark(x2))))), MARK(x0))
   A__SEL(s(x0), cons(x1, from(from(z0)))) -> c3(A__SEL(mark(x0), a__from(a__from(mark(z0)))), MARK(x0))
   A__SEL(s(x0), cons(x1, from(sel(z0, z1)))) -> c3(A__SEL(mark(x0), a__from(a__sel(mark(z0), mark(z1)))), MARK(x0))
   A__SEL(s(x0), cons(x1, from(cons(z0, z1)))) -> c3(A__SEL(mark(x0), a__from(cons(mark(z0), z1))), MARK(x0))
   A__SEL(s(x0), cons(x1, from(s(z0)))) -> c3(A__SEL(mark(x0), a__from(s(mark(z0)))), MARK(x0))
   A__SEL(s(x0), cons(x1, from(0))) -> c3(A__SEL(mark(x0), a__from(0)), MARK(x0))
   A__SEL(s(from(z0)), cons(x1, from(x2))) -> c3(A__SEL(a__from(mark(z0)), a__from(mark(x2))), MARK(from(z0)))
   A__SEL(s(sel(z0, z1)), cons(x1, from(x2))) -> c3(A__SEL(a__sel(mark(z0), mark(z1)), a__from(mark(x2))), MARK(sel(z0, z1)))
   A__SEL(s(s(z0)), cons(x1, from(x2))) -> c3(A__SEL(s(mark(z0)), a__from(mark(x2))), MARK(s(z0)))
   A__SEL(s(x0), cons(x1, from(x2))) -> c3(MARK(x0))
   A__SEL(s(cons(z0, z1)), cons(x1, from(x2))) -> c3(MARK(cons(z0, z1)))
   A__SEL(s(0), cons(x1, from(x2))) -> c3(A__SEL(0, a__from(mark(x2))))
   A__SEL(s(x0), cons(x1, sel(x2, from(z0)))) -> c3(A__SEL(mark(x0), a__sel(mark(x2), a__from(mark(z0)))), MARK(x0))
   A__SEL(s(x0), cons(x1, sel(x2, sel(z0, z1)))) -> c3(A__SEL(mark(x0), a__sel(mark(x2), a__sel(mark(z0), mark(z1)))), MARK(x0))
   A__SEL(s(x0), cons(x1, sel(x2, cons(z0, z1)))) -> c3(A__SEL(mark(x0), a__sel(mark(x2), cons(mark(z0), z1))), MARK(x0))
   A__SEL(s(x0), cons(x1, sel(x2, s(z0)))) -> c3(A__SEL(mark(x0), a__sel(mark(x2), s(mark(z0)))), MARK(x0))
   A__SEL(s(x0), cons(x1, sel(x2, 0))) -> c3(A__SEL(mark(x0), a__sel(mark(x2), 0)), MARK(x0))
   A__SEL(s(x0), cons(x1, sel(from(z0), x3))) -> c3(A__SEL(mark(x0), a__sel(a__from(mark(z0)), mark(x3))), MARK(x0))
   A__SEL(s(x0), cons(x1, sel(sel(z0, z1), x3))) -> c3(A__SEL(mark(x0), a__sel(a__sel(mark(z0), mark(z1)), mark(x3))), MARK(x0))
   A__SEL(s(x0), cons(x1, sel(cons(z0, z1), x3))) -> c3(A__SEL(mark(x0), a__sel(cons(mark(z0), z1), mark(x3))), MARK(x0))
   A__SEL(s(x0), cons(x1, sel(s(z0), x3))) -> c3(A__SEL(mark(x0), a__sel(s(mark(z0)), mark(x3))), MARK(x0))
   A__SEL(s(x0), cons(x1, sel(0, x3))) -> c3(A__SEL(mark(x0), a__sel(0, mark(x3))), MARK(x0))
   A__SEL(s(from(z0)), cons(x1, sel(x2, x3))) -> c3(A__SEL(a__from(mark(z0)), a__sel(mark(x2), mark(x3))), MARK(from(z0)))
   A__SEL(s(sel(z0, z1)), cons(x1, sel(x2, x3))) -> c3(A__SEL(a__sel(mark(z0), mark(z1)), a__sel(mark(x2), mark(x3))), MARK(sel(z0, z1)))
   A__SEL(s(s(z0)), cons(x1, sel(x2, x3))) -> c3(A__SEL(s(mark(z0)), a__sel(mark(x2), mark(x3))), MARK(s(z0)))
   A__SEL(s(x0), cons(x1, sel(x2, x3))) -> c3(MARK(x0))
   A__SEL(s(cons(z0, z1)), cons(x1, sel(x2, x3))) -> c3(MARK(cons(z0, z1)))
   A__SEL(s(0), cons(x1, sel(x2, x3))) -> c3(A__SEL(0, a__sel(mark(x2), mark(x3))))
   A__SEL(s(x0), cons(x1, cons(from(z0), x3))) -> c3(A__SEL(mark(x0), cons(a__from(mark(z0)), x3)), MARK(x0))
   A__SEL(s(x0), cons(x1, cons(sel(z0, z1), x3))) -> c3(A__SEL(mark(x0), cons(a__sel(mark(z0), mark(z1)), x3)), MARK(x0))
   A__SEL(s(x0), cons(x1, cons(cons(z0, z1), x3))) -> c3(A__SEL(mark(x0), cons(cons(mark(z0), z1), x3)), MARK(x0))
   A__SEL(s(x0), cons(x1, cons(s(z0), x3))) -> c3(A__SEL(mark(x0), cons(s(mark(z0)), x3)), MARK(x0))
   A__SEL(s(x0), cons(x1, cons(0, x3))) -> c3(A__SEL(mark(x0), cons(0, x3)), MARK(x0))
   A__SEL(s(from(z0)), cons(x1, cons(x2, x3))) -> c3(A__SEL(a__from(mark(z0)), cons(mark(x2), x3)), MARK(from(z0)))
   A__SEL(s(sel(z0, z1)), cons(x1, cons(x2, x3))) -> c3(A__SEL(a__sel(mark(z0), mark(z1)), cons(mark(x2), x3)), MARK(sel(z0, z1)))
   A__SEL(s(s(z0)), cons(x1, cons(x2, x3))) -> c3(A__SEL(s(mark(z0)), cons(mark(x2), x3)), MARK(s(z0)))
   A__SEL(s(cons(z0, z1)), cons(x1, cons(x2, x3))) -> c3(MARK(cons(z0, z1)))
   A__SEL(s(0), cons(x1, cons(x2, x3))) -> c3(A__SEL(0, cons(mark(x2), x3)))
   A__SEL(s(from(from(z0))), cons(x1, x2)) -> c3(A__SEL(a__from(a__from(mark(z0))), mark(x2)), MARK(from(from(z0))))
   A__SEL(s(from(sel(z0, z1))), cons(x1, x2)) -> c3(A__SEL(a__from(a__sel(mark(z0), mark(z1))), mark(x2)), MARK(from(sel(z0, z1))))
   A__SEL(s(from(cons(z0, z1))), cons(x1, x2)) -> c3(A__SEL(a__from(cons(mark(z0), z1)), mark(x2)), MARK(from(cons(z0, z1))))
   A__SEL(s(from(s(z0))), cons(x1, x2)) -> c3(A__SEL(a__from(s(mark(z0))), mark(x2)), MARK(from(s(z0))))
   A__SEL(s(from(0)), cons(x1, x2)) -> c3(A__SEL(a__from(0), mark(x2)), MARK(from(0)))
   A__SEL(s(from(x0)), cons(x1, x2)) -> c3(MARK(from(x0)))
   A__SEL(s(from(x0)), cons(x1, s(z0))) -> c3(MARK(from(x0)))
   A__SEL(s(from(x0)), cons(x1, 0)) -> c3(MARK(from(x0)))
   A__SEL(s(sel(x0, from(z0))), cons(x2, x3)) -> c3(A__SEL(a__sel(mark(x0), a__from(mark(z0))), mark(x3)), MARK(sel(x0, from(z0))))
   A__SEL(s(sel(x0, sel(z0, z1))), cons(x2, x3)) -> c3(A__SEL(a__sel(mark(x0), a__sel(mark(z0), mark(z1))), mark(x3)), MARK(sel(x0, sel(z0, z1))))
   A__SEL(s(sel(x0, cons(z0, z1))), cons(x2, x3)) -> c3(A__SEL(a__sel(mark(x0), cons(mark(z0), z1)), mark(x3)), MARK(sel(x0, cons(z0, z1))))
   A__SEL(s(sel(x0, s(z0))), cons(x2, x3)) -> c3(A__SEL(a__sel(mark(x0), s(mark(z0))), mark(x3)), MARK(sel(x0, s(z0))))
   A__SEL(s(sel(x0, 0)), cons(x2, x3)) -> c3(A__SEL(a__sel(mark(x0), 0), mark(x3)), MARK(sel(x0, 0)))
   A__SEL(s(sel(from(z0), x1)), cons(x2, x3)) -> c3(A__SEL(a__sel(a__from(mark(z0)), mark(x1)), mark(x3)), MARK(sel(from(z0), x1)))
   A__SEL(s(sel(sel(z0, z1), x1)), cons(x2, x3)) -> c3(A__SEL(a__sel(a__sel(mark(z0), mark(z1)), mark(x1)), mark(x3)), MARK(sel(sel(z0, z1), x1)))
   A__SEL(s(sel(cons(z0, z1), x1)), cons(x2, x3)) -> c3(A__SEL(a__sel(cons(mark(z0), z1), mark(x1)), mark(x3)), MARK(sel(cons(z0, z1), x1)))
   A__SEL(s(sel(s(z0), x1)), cons(x2, x3)) -> c3(A__SEL(a__sel(s(mark(z0)), mark(x1)), mark(x3)), MARK(sel(s(z0), x1)))
   A__SEL(s(sel(0, x1)), cons(x2, x3)) -> c3(A__SEL(a__sel(0, mark(x1)), mark(x3)), MARK(sel(0, x1)))
   A__SEL(s(sel(x0, x1)), cons(x2, s(z0))) -> c3(MARK(sel(x0, x1)))
   A__SEL(s(sel(x0, x1)), cons(x2, 0)) -> c3(MARK(sel(x0, x1)))
   A__SEL(s(sel(x0, x1)), cons(x2, x3)) -> c3(MARK(sel(x0, x1)))
   A__SEL(s(s(from(z0))), cons(x1, x2)) -> c3(A__SEL(s(a__from(mark(z0))), mark(x2)), MARK(s(from(z0))))
   A__SEL(s(s(sel(z0, z1))), cons(x1, x2)) -> c3(A__SEL(s(a__sel(mark(z0), mark(z1))), mark(x2)), MARK(s(sel(z0, z1))))
   A__SEL(s(s(cons(z0, z1))), cons(x1, x2)) -> c3(A__SEL(s(cons(mark(z0), z1)), mark(x2)), MARK(s(cons(z0, z1))))
   A__SEL(s(s(s(z0))), cons(x1, x2)) -> c3(A__SEL(s(s(mark(z0))), mark(x2)), MARK(s(s(z0))))
   A__SEL(s(s(0)), cons(x1, x2)) -> c3(A__SEL(s(0), mark(x2)), MARK(s(0)))
   A__SEL(s(s(x0)), cons(x1, x2)) -> c3(MARK(s(x0)))
   A__SEL(s(s(x0)), cons(x1, s(z0))) -> c3(MARK(s(x0)))
   A__SEL(s(s(x0)), cons(x1, 0)) -> c3(MARK(s(x0)))
   A__SEL(s(x0), cons(x1, from(x2))) -> c4(A__SEL(mark(x0), cons(mark(mark(x2)), from(s(mark(x2))))), MARK(from(x2)))
   A__SEL(s(x0), cons(x1, from(from(z0)))) -> c4(A__SEL(mark(x0), a__from(a__from(mark(z0)))), MARK(from(from(z0))))
   A__SEL(s(x0), cons(x1, from(sel(z0, z1)))) -> c4(A__SEL(mark(x0), a__from(a__sel(mark(z0), mark(z1)))), MARK(from(sel(z0, z1))))
   A__SEL(s(x0), cons(x1, from(cons(z0, z1)))) -> c4(A__SEL(mark(x0), a__from(cons(mark(z0), z1))), MARK(from(cons(z0, z1))))
   A__SEL(s(x0), cons(x1, from(s(z0)))) -> c4(A__SEL(mark(x0), a__from(s(mark(z0)))), MARK(from(s(z0))))
   A__SEL(s(x0), cons(x1, from(0))) -> c4(A__SEL(mark(x0), a__from(0)), MARK(from(0)))
   A__SEL(s(from(z0)), cons(x1, from(x2))) -> c4(A__SEL(a__from(mark(z0)), a__from(mark(x2))), MARK(from(x2)))
   A__SEL(s(sel(z0, z1)), cons(x1, from(x2))) -> c4(A__SEL(a__sel(mark(z0), mark(z1)), a__from(mark(x2))), MARK(from(x2)))
   A__SEL(s(s(z0)), cons(x1, from(x2))) -> c4(A__SEL(s(mark(z0)), a__from(mark(x2))), MARK(from(x2)))
   A__SEL(s(0), cons(x1, from(x2))) -> c4(A__SEL(0, a__from(mark(x2))), MARK(from(x2)))
   A__SEL(s(x0), cons(x1, from(x2))) -> c4(MARK(from(x2)))
   A__SEL(s(cons(z0, z1)), cons(x1, from(x2))) -> c4(MARK(from(x2)))
   A__SEL(s(x0), cons(x1, sel(x2, from(z0)))) -> c4(A__SEL(mark(x0), a__sel(mark(x2), a__from(mark(z0)))), MARK(sel(x2, from(z0))))
   A__SEL(s(x0), cons(x1, sel(x2, sel(z0, z1)))) -> c4(A__SEL(mark(x0), a__sel(mark(x2), a__sel(mark(z0), mark(z1)))), MARK(sel(x2, sel(z0, z1))))
   A__SEL(s(x0), cons(x1, sel(x2, cons(z0, z1)))) -> c4(A__SEL(mark(x0), a__sel(mark(x2), cons(mark(z0), z1))), MARK(sel(x2, cons(z0, z1))))
   A__SEL(s(x0), cons(x1, sel(x2, s(z0)))) -> c4(A__SEL(mark(x0), a__sel(mark(x2), s(mark(z0)))), MARK(sel(x2, s(z0))))
   A__SEL(s(x0), cons(x1, sel(x2, 0))) -> c4(A__SEL(mark(x0), a__sel(mark(x2), 0)), MARK(sel(x2, 0)))
   A__SEL(s(x0), cons(x1, sel(from(z0), x3))) -> c4(A__SEL(mark(x0), a__sel(a__from(mark(z0)), mark(x3))), MARK(sel(from(z0), x3)))
   A__SEL(s(x0), cons(x1, sel(sel(z0, z1), x3))) -> c4(A__SEL(mark(x0), a__sel(a__sel(mark(z0), mark(z1)), mark(x3))), MARK(sel(sel(z0, z1), x3)))
   A__SEL(s(x0), cons(x1, sel(cons(z0, z1), x3))) -> c4(A__SEL(mark(x0), a__sel(cons(mark(z0), z1), mark(x3))), MARK(sel(cons(z0, z1), x3)))
   A__SEL(s(x0), cons(x1, sel(s(z0), x3))) -> c4(A__SEL(mark(x0), a__sel(s(mark(z0)), mark(x3))), MARK(sel(s(z0), x3)))
   A__SEL(s(x0), cons(x1, sel(0, x3))) -> c4(A__SEL(mark(x0), a__sel(0, mark(x3))), MARK(sel(0, x3)))
   A__SEL(s(from(z0)), cons(x1, sel(x2, x3))) -> c4(A__SEL(a__from(mark(z0)), a__sel(mark(x2), mark(x3))), MARK(sel(x2, x3)))
   A__SEL(s(sel(z0, z1)), cons(x1, sel(x2, x3))) -> c4(A__SEL(a__sel(mark(z0), mark(z1)), a__sel(mark(x2), mark(x3))), MARK(sel(x2, x3)))
   A__SEL(s(s(z0)), cons(x1, sel(x2, x3))) -> c4(A__SEL(s(mark(z0)), a__sel(mark(x2), mark(x3))), MARK(sel(x2, x3)))
   A__SEL(s(0), cons(x1, sel(x2, x3))) -> c4(A__SEL(0, a__sel(mark(x2), mark(x3))), MARK(sel(x2, x3)))
   A__SEL(s(x0), cons(x1, sel(x2, x3))) -> c4(MARK(sel(x2, x3)))
   A__SEL(s(cons(z0, z1)), cons(x1, sel(x2, x3))) -> c4(MARK(sel(x2, x3)))
   A__SEL(s(x0), cons(x1, cons(from(z0), x3))) -> c4(A__SEL(mark(x0), cons(a__from(mark(z0)), x3)), MARK(cons(from(z0), x3)))
   A__SEL(s(x0), cons(x1, cons(sel(z0, z1), x3))) -> c4(A__SEL(mark(x0), cons(a__sel(mark(z0), mark(z1)), x3)), MARK(cons(sel(z0, z1), x3)))
   A__SEL(s(x0), cons(x1, cons(cons(z0, z1), x3))) -> c4(A__SEL(mark(x0), cons(cons(mark(z0), z1), x3)), MARK(cons(cons(z0, z1), x3)))
   A__SEL(s(x0), cons(x1, cons(s(z0), x3))) -> c4(A__SEL(mark(x0), cons(s(mark(z0)), x3)), MARK(cons(s(z0), x3)))
   A__SEL(s(x0), cons(x1, cons(0, x3))) -> c4(A__SEL(mark(x0), cons(0, x3)), MARK(cons(0, x3)))
   A__SEL(s(from(z0)), cons(x1, cons(x2, x3))) -> c4(A__SEL(a__from(mark(z0)), cons(mark(x2), x3)), MARK(cons(x2, x3)))
   A__SEL(s(sel(z0, z1)), cons(x1, cons(x2, x3))) -> c4(A__SEL(a__sel(mark(z0), mark(z1)), cons(mark(x2), x3)), MARK(cons(x2, x3)))
   A__SEL(s(s(z0)), cons(x1, cons(x2, x3))) -> c4(A__SEL(s(mark(z0)), cons(mark(x2), x3)), MARK(cons(x2, x3)))
   A__SEL(s(0), cons(x1, cons(x2, x3))) -> c4(A__SEL(0, cons(mark(x2), x3)), MARK(cons(x2, x3)))
   A__SEL(s(x0), cons(x1, cons(x2, x3))) -> c4(MARK(cons(x2, x3)))
   A__SEL(s(cons(z0, z1)), cons(x1, cons(x2, x3))) -> c4(MARK(cons(x2, x3)))
   A__SEL(s(from(from(z0))), cons(x1, x2)) -> c4(A__SEL(a__from(a__from(mark(z0))), mark(x2)), MARK(x2))
   A__SEL(s(from(sel(z0, z1))), cons(x1, x2)) -> c4(A__SEL(a__from(a__sel(mark(z0), mark(z1))), mark(x2)), MARK(x2))
   A__SEL(s(from(cons(z0, z1))), cons(x1, x2)) -> c4(A__SEL(a__from(cons(mark(z0), z1)), mark(x2)), MARK(x2))
   A__SEL(s(from(s(z0))), cons(x1, x2)) -> c4(A__SEL(a__from(s(mark(z0))), mark(x2)), MARK(x2))
   A__SEL(s(from(0)), cons(x1, x2)) -> c4(A__SEL(a__from(0), mark(x2)), MARK(x2))
   A__SEL(s(from(x0)), cons(x1, s(z0))) -> c4(MARK(s(z0)))
   A__SEL(s(from(x0)), cons(x1, x2)) -> c4(MARK(x2))
   A__SEL(s(sel(x0, from(z0))), cons(x2, x3)) -> c4(A__SEL(a__sel(mark(x0), a__from(mark(z0))), mark(x3)), MARK(x3))
   A__SEL(s(sel(x0, sel(z0, z1))), cons(x2, x3)) -> c4(A__SEL(a__sel(mark(x0), a__sel(mark(z0), mark(z1))), mark(x3)), MARK(x3))
   A__SEL(s(sel(x0, cons(z0, z1))), cons(x2, x3)) -> c4(A__SEL(a__sel(mark(x0), cons(mark(z0), z1)), mark(x3)), MARK(x3))
   A__SEL(s(sel(x0, s(z0))), cons(x2, x3)) -> c4(A__SEL(a__sel(mark(x0), s(mark(z0))), mark(x3)), MARK(x3))
   A__SEL(s(sel(x0, 0)), cons(x2, x3)) -> c4(A__SEL(a__sel(mark(x0), 0), mark(x3)), MARK(x3))
   A__SEL(s(sel(from(z0), x1)), cons(x2, x3)) -> c4(A__SEL(a__sel(a__from(mark(z0)), mark(x1)), mark(x3)), MARK(x3))
   A__SEL(s(sel(sel(z0, z1), x1)), cons(x2, x3)) -> c4(A__SEL(a__sel(a__sel(mark(z0), mark(z1)), mark(x1)), mark(x3)), MARK(x3))
   A__SEL(s(sel(cons(z0, z1), x1)), cons(x2, x3)) -> c4(A__SEL(a__sel(cons(mark(z0), z1), mark(x1)), mark(x3)), MARK(x3))
   A__SEL(s(sel(s(z0), x1)), cons(x2, x3)) -> c4(A__SEL(a__sel(s(mark(z0)), mark(x1)), mark(x3)), MARK(x3))
   A__SEL(s(sel(0, x1)), cons(x2, x3)) -> c4(A__SEL(a__sel(0, mark(x1)), mark(x3)), MARK(x3))
   A__SEL(s(sel(x0, x1)), cons(x2, s(z0))) -> c4(MARK(s(z0)))
   A__SEL(s(sel(x0, x1)), cons(x2, x3)) -> c4(MARK(x3))
   A__SEL(s(s(from(z0))), cons(x1, x2)) -> c4(A__SEL(s(a__from(mark(z0))), mark(x2)), MARK(x2))
   A__SEL(s(s(sel(z0, z1))), cons(x1, x2)) -> c4(A__SEL(s(a__sel(mark(z0), mark(z1))), mark(x2)), MARK(x2))
   A__SEL(s(s(cons(z0, z1))), cons(x1, x2)) -> c4(A__SEL(s(cons(mark(z0), z1)), mark(x2)), MARK(x2))
   A__SEL(s(s(s(z0))), cons(x1, x2)) -> c4(A__SEL(s(s(mark(z0))), mark(x2)), MARK(x2))
   A__SEL(s(s(0)), cons(x1, x2)) -> c4(A__SEL(s(0), mark(x2)), MARK(x2))
   A__SEL(s(s(x0)), cons(x1, s(z0))) -> c4(MARK(s(z0)))
   A__SEL(s(0), cons(x0, s(z0))) -> c4(MARK(s(z0)))
   MARK(sel(x0, from(x1))) -> c7(A__SEL(mark(x0), cons(mark(mark(x1)), from(s(mark(x1))))), MARK(x0))
   MARK(sel(x0, from(from(z0)))) -> c7(A__SEL(mark(x0), a__from(a__from(mark(z0)))), MARK(x0))
   MARK(sel(x0, from(sel(z0, z1)))) -> c7(A__SEL(mark(x0), a__from(a__sel(mark(z0), mark(z1)))), MARK(x0))
   MARK(sel(x0, from(cons(z0, z1)))) -> c7(A__SEL(mark(x0), a__from(cons(mark(z0), z1))), MARK(x0))
   MARK(sel(x0, from(s(z0)))) -> c7(A__SEL(mark(x0), a__from(s(mark(z0)))), MARK(x0))
   MARK(sel(x0, from(0))) -> c7(A__SEL(mark(x0), a__from(0)), MARK(x0))
   MARK(sel(from(z0), from(x1))) -> c7(A__SEL(a__from(mark(z0)), a__from(mark(x1))), MARK(from(z0)))
   MARK(sel(sel(z0, z1), from(x1))) -> c7(A__SEL(a__sel(mark(z0), mark(z1)), a__from(mark(x1))), MARK(sel(z0, z1)))
   MARK(sel(s(z0), from(x1))) -> c7(A__SEL(s(mark(z0)), a__from(mark(x1))), MARK(s(z0)))
   MARK(sel(x0, from(x1))) -> c7(MARK(x0))
   MARK(sel(cons(z0, z1), from(x1))) -> c7(MARK(cons(z0, z1)))
   MARK(sel(0, from(x1))) -> c7(A__SEL(0, a__from(mark(x1))))
   MARK(sel(x0, sel(x1, from(z0)))) -> c7(A__SEL(mark(x0), a__sel(mark(x1), a__from(mark(z0)))), MARK(x0))
   MARK(sel(x0, sel(x1, sel(z0, z1)))) -> c7(A__SEL(mark(x0), a__sel(mark(x1), a__sel(mark(z0), mark(z1)))), MARK(x0))
   MARK(sel(x0, sel(x1, cons(z0, z1)))) -> c7(A__SEL(mark(x0), a__sel(mark(x1), cons(mark(z0), z1))), MARK(x0))
   MARK(sel(x0, sel(x1, s(z0)))) -> c7(A__SEL(mark(x0), a__sel(mark(x1), s(mark(z0)))), MARK(x0))
   MARK(sel(x0, sel(x1, 0))) -> c7(A__SEL(mark(x0), a__sel(mark(x1), 0)), MARK(x0))
   MARK(sel(x0, sel(from(z0), x2))) -> c7(A__SEL(mark(x0), a__sel(a__from(mark(z0)), mark(x2))), MARK(x0))
   MARK(sel(x0, sel(sel(z0, z1), x2))) -> c7(A__SEL(mark(x0), a__sel(a__sel(mark(z0), mark(z1)), mark(x2))), MARK(x0))
   MARK(sel(x0, sel(cons(z0, z1), x2))) -> c7(A__SEL(mark(x0), a__sel(cons(mark(z0), z1), mark(x2))), MARK(x0))
   MARK(sel(x0, sel(s(z0), x2))) -> c7(A__SEL(mark(x0), a__sel(s(mark(z0)), mark(x2))), MARK(x0))
   MARK(sel(x0, sel(0, x2))) -> c7(A__SEL(mark(x0), a__sel(0, mark(x2))), MARK(x0))
   MARK(sel(from(z0), sel(x1, x2))) -> c7(A__SEL(a__from(mark(z0)), a__sel(mark(x1), mark(x2))), MARK(from(z0)))
   MARK(sel(sel(z0, z1), sel(x1, x2))) -> c7(A__SEL(a__sel(mark(z0), mark(z1)), a__sel(mark(x1), mark(x2))), MARK(sel(z0, z1)))
   MARK(sel(s(z0), sel(x1, x2))) -> c7(A__SEL(s(mark(z0)), a__sel(mark(x1), mark(x2))), MARK(s(z0)))
   MARK(sel(x0, sel(x1, x2))) -> c7(MARK(x0))
   MARK(sel(cons(z0, z1), sel(x1, x2))) -> c7(MARK(cons(z0, z1)))
   MARK(sel(0, sel(x1, x2))) -> c7(A__SEL(0, a__sel(mark(x1), mark(x2))))
   MARK(sel(x0, cons(from(z0), x2))) -> c7(A__SEL(mark(x0), cons(a__from(mark(z0)), x2)), MARK(x0))
   MARK(sel(x0, cons(sel(z0, z1), x2))) -> c7(A__SEL(mark(x0), cons(a__sel(mark(z0), mark(z1)), x2)), MARK(x0))
   MARK(sel(x0, cons(cons(z0, z1), x2))) -> c7(A__SEL(mark(x0), cons(cons(mark(z0), z1), x2)), MARK(x0))
   MARK(sel(x0, cons(s(z0), x2))) -> c7(A__SEL(mark(x0), cons(s(mark(z0)), x2)), MARK(x0))
   MARK(sel(x0, cons(0, x2))) -> c7(A__SEL(mark(x0), cons(0, x2)), MARK(x0))
   MARK(sel(from(z0), cons(x1, x2))) -> c7(A__SEL(a__from(mark(z0)), cons(mark(x1), x2)), MARK(from(z0)))
   MARK(sel(sel(z0, z1), cons(x1, x2))) -> c7(A__SEL(a__sel(mark(z0), mark(z1)), cons(mark(x1), x2)), MARK(sel(z0, z1)))
   MARK(sel(s(z0), cons(x1, x2))) -> c7(A__SEL(s(mark(z0)), cons(mark(x1), x2)), MARK(s(z0)))
   MARK(sel(cons(z0, z1), cons(x1, x2))) -> c7(MARK(cons(z0, z1)))
   MARK(sel(0, cons(x1, x2))) -> c7(A__SEL(0, cons(mark(x1), x2)))
   MARK(sel(from(from(z0)), x1)) -> c7(A__SEL(a__from(a__from(mark(z0))), mark(x1)), MARK(from(from(z0))))
   MARK(sel(from(sel(z0, z1)), x1)) -> c7(A__SEL(a__from(a__sel(mark(z0), mark(z1))), mark(x1)), MARK(from(sel(z0, z1))))
   MARK(sel(from(cons(z0, z1)), x1)) -> c7(A__SEL(a__from(cons(mark(z0), z1)), mark(x1)), MARK(from(cons(z0, z1))))
   MARK(sel(from(s(z0)), x1)) -> c7(A__SEL(a__from(s(mark(z0))), mark(x1)), MARK(from(s(z0))))
   MARK(sel(from(0), x1)) -> c7(A__SEL(a__from(0), mark(x1)), MARK(from(0)))
   MARK(sel(from(x0), x1)) -> c7(MARK(from(x0)))
   MARK(sel(from(x0), s(z0))) -> c7(MARK(from(x0)))
   MARK(sel(from(x0), 0)) -> c7(MARK(from(x0)))
   MARK(sel(sel(x0, x1), s(z0))) -> c7(A__SEL(a__sel(mark(x0), mark(x1)), s(mark(z0))), MARK(sel(x0, x1)))
   MARK(sel(sel(x0, x1), 0)) -> c7(A__SEL(a__sel(mark(x0), mark(x1)), 0), MARK(sel(x0, x1)))
   MARK(sel(sel(x0, x1), x2)) -> c7(A__SEL(sel(mark(x0), mark(x1)), mark(x2)), MARK(sel(x0, x1)))
   MARK(sel(sel(x0, from(z0)), x2)) -> c7(A__SEL(a__sel(mark(x0), a__from(mark(z0))), mark(x2)), MARK(sel(x0, from(z0))))
   MARK(sel(sel(x0, sel(z0, z1)), x2)) -> c7(A__SEL(a__sel(mark(x0), a__sel(mark(z0), mark(z1))), mark(x2)), MARK(sel(x0, sel(z0, z1))))
   MARK(sel(sel(x0, cons(z0, z1)), x2)) -> c7(A__SEL(a__sel(mark(x0), cons(mark(z0), z1)), mark(x2)), MARK(sel(x0, cons(z0, z1))))
   MARK(sel(sel(x0, s(z0)), x2)) -> c7(A__SEL(a__sel(mark(x0), s(mark(z0))), mark(x2)), MARK(sel(x0, s(z0))))
   MARK(sel(sel(x0, 0), x2)) -> c7(A__SEL(a__sel(mark(x0), 0), mark(x2)), MARK(sel(x0, 0)))
   MARK(sel(sel(from(z0), x1), x2)) -> c7(A__SEL(a__sel(a__from(mark(z0)), mark(x1)), mark(x2)), MARK(sel(from(z0), x1)))
   MARK(sel(sel(sel(z0, z1), x1), x2)) -> c7(A__SEL(a__sel(a__sel(mark(z0), mark(z1)), mark(x1)), mark(x2)), MARK(sel(sel(z0, z1), x1)))
   MARK(sel(sel(cons(z0, z1), x1), x2)) -> c7(A__SEL(a__sel(cons(mark(z0), z1), mark(x1)), mark(x2)), MARK(sel(cons(z0, z1), x1)))
   MARK(sel(sel(s(z0), x1), x2)) -> c7(A__SEL(a__sel(s(mark(z0)), mark(x1)), mark(x2)), MARK(sel(s(z0), x1)))
   MARK(sel(sel(0, x1), x2)) -> c7(A__SEL(a__sel(0, mark(x1)), mark(x2)), MARK(sel(0, x1)))
K tuples:none
Defined Rule Symbols:   a__from_1, a__sel_2, mark_1

Defined Pair Symbols:   A__FROM_1, A__SEL_2, MARK_1

Compound Symbols:   c_1, c2_1, c6_2, c9_1, c10_1, c3_1, c4_1, c7_2, c7_1, c8_2, c8_1, c3_2, c4_2


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

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

(160)
Obligation:
Complexity Dependency Tuples Problem

Rules:
   a__from(z0) -> cons(mark(z0), from(s(z0)))
   a__from(z0) -> from(z0)
   a__sel(0, cons(z0, z1)) -> mark(z0)
   a__sel(s(z0), cons(z1, z2)) -> a__sel(mark(z0), mark(z2))
   a__sel(z0, z1) -> sel(z0, z1)
   mark(from(z0)) -> a__from(mark(z0))
   mark(sel(z0, z1)) -> a__sel(mark(z0), mark(z1))
   mark(cons(z0, z1)) -> cons(mark(z0), z1)
   mark(s(z0)) -> s(mark(z0))
   mark(0) -> 0
Tuples:
   A__FROM(z0) -> c(MARK(z0))
   A__SEL(0, cons(z0, z1)) -> c2(MARK(z0))
   MARK(from(z0)) -> c6(A__FROM(mark(z0)), MARK(z0))
   MARK(cons(z0, z1)) -> c9(MARK(z0))
   MARK(s(z0)) -> c10(MARK(z0))
   A__SEL(s(x0), cons(x1, s(z0))) -> c3(MARK(x0))
   A__SEL(s(x0), cons(x1, 0)) -> c3(MARK(x0))
   A__SEL(s(cons(z0, z1)), cons(x1, x2)) -> c3(MARK(cons(z0, z1)))
   A__SEL(s(x0), cons(x1, s(z0))) -> c4(MARK(s(z0)))
   A__SEL(s(cons(z0, z1)), cons(x1, x2)) -> c4(MARK(x2))
   MARK(sel(s(z0), x1)) -> c7(A__SEL(s(mark(z0)), mark(x1)), MARK(s(z0)))
   MARK(sel(x0, s(z0))) -> c7(MARK(x0))
   MARK(sel(x0, 0)) -> c7(MARK(x0))
   MARK(sel(cons(z0, z1), x1)) -> c7(MARK(cons(z0, z1)))
   MARK(sel(0, x1)) -> c7(A__SEL(0, mark(x1)))
   MARK(sel(x0, from(z0))) -> c8(A__SEL(mark(x0), a__from(mark(z0))), MARK(from(z0)))
   MARK(sel(x0, sel(z0, z1))) -> c8(A__SEL(mark(x0), a__sel(mark(z0), mark(z1))), MARK(sel(z0, z1)))
   MARK(sel(x0, cons(z0, z1))) -> c8(A__SEL(mark(x0), cons(mark(z0), z1)), MARK(cons(z0, z1)))
   MARK(sel(from(z0), x1)) -> c8(A__SEL(a__from(mark(z0)), mark(x1)), MARK(x1))
   MARK(sel(sel(z0, z1), x1)) -> c8(A__SEL(a__sel(mark(z0), mark(z1)), mark(x1)), MARK(x1))
   MARK(sel(s(z0), x1)) -> c8(A__SEL(s(mark(z0)), mark(x1)), MARK(x1))
   MARK(sel(0, x1)) -> c8(A__SEL(0, mark(x1)), MARK(x1))
   MARK(sel(x0, s(z0))) -> c8(MARK(s(z0)))
   MARK(sel(cons(z0, z1), x1)) -> c8(MARK(x1))
   A__SEL(s(x0), cons(x1, from(x2))) -> c3(A__SEL(mark(x0), cons(mark(mark(x2)), from(s(mark(x2))))), MARK(x0))
   A__SEL(s(x0), cons(x1, from(from(z0)))) -> c3(A__SEL(mark(x0), a__from(a__from(mark(z0)))), MARK(x0))
   A__SEL(s(x0), cons(x1, from(sel(z0, z1)))) -> c3(A__SEL(mark(x0), a__from(a__sel(mark(z0), mark(z1)))), MARK(x0))
   A__SEL(s(x0), cons(x1, from(cons(z0, z1)))) -> c3(A__SEL(mark(x0), a__from(cons(mark(z0), z1))), MARK(x0))
   A__SEL(s(x0), cons(x1, from(s(z0)))) -> c3(A__SEL(mark(x0), a__from(s(mark(z0)))), MARK(x0))
   A__SEL(s(x0), cons(x1, from(0))) -> c3(A__SEL(mark(x0), a__from(0)), MARK(x0))
   A__SEL(s(from(z0)), cons(x1, from(x2))) -> c3(A__SEL(a__from(mark(z0)), a__from(mark(x2))), MARK(from(z0)))
   A__SEL(s(sel(z0, z1)), cons(x1, from(x2))) -> c3(A__SEL(a__sel(mark(z0), mark(z1)), a__from(mark(x2))), MARK(sel(z0, z1)))
   A__SEL(s(s(z0)), cons(x1, from(x2))) -> c3(A__SEL(s(mark(z0)), a__from(mark(x2))), MARK(s(z0)))
   A__SEL(s(x0), cons(x1, from(x2))) -> c3(MARK(x0))
   A__SEL(s(cons(z0, z1)), cons(x1, from(x2))) -> c3(MARK(cons(z0, z1)))
   A__SEL(s(0), cons(x1, from(x2))) -> c3(A__SEL(0, a__from(mark(x2))))
   A__SEL(s(x0), cons(x1, sel(x2, from(z0)))) -> c3(A__SEL(mark(x0), a__sel(mark(x2), a__from(mark(z0)))), MARK(x0))
   A__SEL(s(x0), cons(x1, sel(x2, sel(z0, z1)))) -> c3(A__SEL(mark(x0), a__sel(mark(x2), a__sel(mark(z0), mark(z1)))), MARK(x0))
   A__SEL(s(x0), cons(x1, sel(x2, cons(z0, z1)))) -> c3(A__SEL(mark(x0), a__sel(mark(x2), cons(mark(z0), z1))), MARK(x0))
   A__SEL(s(x0), cons(x1, sel(x2, s(z0)))) -> c3(A__SEL(mark(x0), a__sel(mark(x2), s(mark(z0)))), MARK(x0))
   A__SEL(s(x0), cons(x1, sel(x2, 0))) -> c3(A__SEL(mark(x0), a__sel(mark(x2), 0)), MARK(x0))
   A__SEL(s(x0), cons(x1, sel(from(z0), x3))) -> c3(A__SEL(mark(x0), a__sel(a__from(mark(z0)), mark(x3))), MARK(x0))
   A__SEL(s(x0), cons(x1, sel(sel(z0, z1), x3))) -> c3(A__SEL(mark(x0), a__sel(a__sel(mark(z0), mark(z1)), mark(x3))), MARK(x0))
   A__SEL(s(x0), cons(x1, sel(cons(z0, z1), x3))) -> c3(A__SEL(mark(x0), a__sel(cons(mark(z0), z1), mark(x3))), MARK(x0))
   A__SEL(s(x0), cons(x1, sel(s(z0), x3))) -> c3(A__SEL(mark(x0), a__sel(s(mark(z0)), mark(x3))), MARK(x0))
   A__SEL(s(x0), cons(x1, sel(0, x3))) -> c3(A__SEL(mark(x0), a__sel(0, mark(x3))), MARK(x0))
   A__SEL(s(from(z0)), cons(x1, sel(x2, x3))) -> c3(A__SEL(a__from(mark(z0)), a__sel(mark(x2), mark(x3))), MARK(from(z0)))
   A__SEL(s(sel(z0, z1)), cons(x1, sel(x2, x3))) -> c3(A__SEL(a__sel(mark(z0), mark(z1)), a__sel(mark(x2), mark(x3))), MARK(sel(z0, z1)))
   A__SEL(s(s(z0)), cons(x1, sel(x2, x3))) -> c3(A__SEL(s(mark(z0)), a__sel(mark(x2), mark(x3))), MARK(s(z0)))
   A__SEL(s(x0), cons(x1, sel(x2, x3))) -> c3(MARK(x0))
   A__SEL(s(cons(z0, z1)), cons(x1, sel(x2, x3))) -> c3(MARK(cons(z0, z1)))
   A__SEL(s(0), cons(x1, sel(x2, x3))) -> c3(A__SEL(0, a__sel(mark(x2), mark(x3))))
   A__SEL(s(x0), cons(x1, cons(from(z0), x3))) -> c3(A__SEL(mark(x0), cons(a__from(mark(z0)), x3)), MARK(x0))
   A__SEL(s(x0), cons(x1, cons(sel(z0, z1), x3))) -> c3(A__SEL(mark(x0), cons(a__sel(mark(z0), mark(z1)), x3)), MARK(x0))
   A__SEL(s(x0), cons(x1, cons(cons(z0, z1), x3))) -> c3(A__SEL(mark(x0), cons(cons(mark(z0), z1), x3)), MARK(x0))
   A__SEL(s(x0), cons(x1, cons(s(z0), x3))) -> c3(A__SEL(mark(x0), cons(s(mark(z0)), x3)), MARK(x0))
   A__SEL(s(x0), cons(x1, cons(0, x3))) -> c3(A__SEL(mark(x0), cons(0, x3)), MARK(x0))
   A__SEL(s(from(z0)), cons(x1, cons(x2, x3))) -> c3(A__SEL(a__from(mark(z0)), cons(mark(x2), x3)), MARK(from(z0)))
   A__SEL(s(sel(z0, z1)), cons(x1, cons(x2, x3))) -> c3(A__SEL(a__sel(mark(z0), mark(z1)), cons(mark(x2), x3)), MARK(sel(z0, z1)))
   A__SEL(s(s(z0)), cons(x1, cons(x2, x3))) -> c3(A__SEL(s(mark(z0)), cons(mark(x2), x3)), MARK(s(z0)))
   A__SEL(s(cons(z0, z1)), cons(x1, cons(x2, x3))) -> c3(MARK(cons(z0, z1)))
   A__SEL(s(0), cons(x1, cons(x2, x3))) -> c3(A__SEL(0, cons(mark(x2), x3)))
   A__SEL(s(from(from(z0))), cons(x1, x2)) -> c3(A__SEL(a__from(a__from(mark(z0))), mark(x2)), MARK(from(from(z0))))
   A__SEL(s(from(sel(z0, z1))), cons(x1, x2)) -> c3(A__SEL(a__from(a__sel(mark(z0), mark(z1))), mark(x2)), MARK(from(sel(z0, z1))))
   A__SEL(s(from(cons(z0, z1))), cons(x1, x2)) -> c3(A__SEL(a__from(cons(mark(z0), z1)), mark(x2)), MARK(from(cons(z0, z1))))
   A__SEL(s(from(s(z0))), cons(x1, x2)) -> c3(A__SEL(a__from(s(mark(z0))), mark(x2)), MARK(from(s(z0))))
   A__SEL(s(from(0)), cons(x1, x2)) -> c3(A__SEL(a__from(0), mark(x2)), MARK(from(0)))
   A__SEL(s(from(x0)), cons(x1, x2)) -> c3(MARK(from(x0)))
   A__SEL(s(from(x0)), cons(x1, s(z0))) -> c3(MARK(from(x0)))
   A__SEL(s(from(x0)), cons(x1, 0)) -> c3(MARK(from(x0)))
   A__SEL(s(sel(x0, from(z0))), cons(x2, x3)) -> c3(A__SEL(a__sel(mark(x0), a__from(mark(z0))), mark(x3)), MARK(sel(x0, from(z0))))
   A__SEL(s(sel(x0, sel(z0, z1))), cons(x2, x3)) -> c3(A__SEL(a__sel(mark(x0), a__sel(mark(z0), mark(z1))), mark(x3)), MARK(sel(x0, sel(z0, z1))))
   A__SEL(s(sel(x0, cons(z0, z1))), cons(x2, x3)) -> c3(A__SEL(a__sel(mark(x0), cons(mark(z0), z1)), mark(x3)), MARK(sel(x0, cons(z0, z1))))
   A__SEL(s(sel(x0, s(z0))), cons(x2, x3)) -> c3(A__SEL(a__sel(mark(x0), s(mark(z0))), mark(x3)), MARK(sel(x0, s(z0))))
   A__SEL(s(sel(x0, 0)), cons(x2, x3)) -> c3(A__SEL(a__sel(mark(x0), 0), mark(x3)), MARK(sel(x0, 0)))
   A__SEL(s(sel(from(z0), x1)), cons(x2, x3)) -> c3(A__SEL(a__sel(a__from(mark(z0)), mark(x1)), mark(x3)), MARK(sel(from(z0), x1)))
   A__SEL(s(sel(sel(z0, z1), x1)), cons(x2, x3)) -> c3(A__SEL(a__sel(a__sel(mark(z0), mark(z1)), mark(x1)), mark(x3)), MARK(sel(sel(z0, z1), x1)))
   A__SEL(s(sel(cons(z0, z1), x1)), cons(x2, x3)) -> c3(A__SEL(a__sel(cons(mark(z0), z1), mark(x1)), mark(x3)), MARK(sel(cons(z0, z1), x1)))
   A__SEL(s(sel(s(z0), x1)), cons(x2, x3)) -> c3(A__SEL(a__sel(s(mark(z0)), mark(x1)), mark(x3)), MARK(sel(s(z0), x1)))
   A__SEL(s(sel(0, x1)), cons(x2, x3)) -> c3(A__SEL(a__sel(0, mark(x1)), mark(x3)), MARK(sel(0, x1)))
   A__SEL(s(sel(x0, x1)), cons(x2, s(z0))) -> c3(MARK(sel(x0, x1)))
   A__SEL(s(sel(x0, x1)), cons(x2, 0)) -> c3(MARK(sel(x0, x1)))
   A__SEL(s(sel(x0, x1)), cons(x2, x3)) -> c3(MARK(sel(x0, x1)))
   A__SEL(s(s(from(z0))), cons(x1, x2)) -> c3(A__SEL(s(a__from(mark(z0))), mark(x2)), MARK(s(from(z0))))
   A__SEL(s(s(sel(z0, z1))), cons(x1, x2)) -> c3(A__SEL(s(a__sel(mark(z0), mark(z1))), mark(x2)), MARK(s(sel(z0, z1))))
   A__SEL(s(s(cons(z0, z1))), cons(x1, x2)) -> c3(A__SEL(s(cons(mark(z0), z1)), mark(x2)), MARK(s(cons(z0, z1))))
   A__SEL(s(s(s(z0))), cons(x1, x2)) -> c3(A__SEL(s(s(mark(z0))), mark(x2)), MARK(s(s(z0))))
   A__SEL(s(s(0)), cons(x1, x2)) -> c3(A__SEL(s(0), mark(x2)), MARK(s(0)))
   A__SEL(s(s(x0)), cons(x1, x2)) -> c3(MARK(s(x0)))
   A__SEL(s(s(x0)), cons(x1, s(z0))) -> c3(MARK(s(x0)))
   A__SEL(s(s(x0)), cons(x1, 0)) -> c3(MARK(s(x0)))
   A__SEL(s(x0), cons(x1, from(x2))) -> c4(A__SEL(mark(x0), cons(mark(mark(x2)), from(s(mark(x2))))), MARK(from(x2)))
   A__SEL(s(x0), cons(x1, from(from(z0)))) -> c4(A__SEL(mark(x0), a__from(a__from(mark(z0)))), MARK(from(from(z0))))
   A__SEL(s(x0), cons(x1, from(sel(z0, z1)))) -> c4(A__SEL(mark(x0), a__from(a__sel(mark(z0), mark(z1)))), MARK(from(sel(z0, z1))))
   A__SEL(s(x0), cons(x1, from(cons(z0, z1)))) -> c4(A__SEL(mark(x0), a__from(cons(mark(z0), z1))), MARK(from(cons(z0, z1))))
   A__SEL(s(x0), cons(x1, from(s(z0)))) -> c4(A__SEL(mark(x0), a__from(s(mark(z0)))), MARK(from(s(z0))))
   A__SEL(s(x0), cons(x1, from(0))) -> c4(A__SEL(mark(x0), a__from(0)), MARK(from(0)))
   A__SEL(s(from(z0)), cons(x1, from(x2))) -> c4(A__SEL(a__from(mark(z0)), a__from(mark(x2))), MARK(from(x2)))
   A__SEL(s(sel(z0, z1)), cons(x1, from(x2))) -> c4(A__SEL(a__sel(mark(z0), mark(z1)), a__from(mark(x2))), MARK(from(x2)))
   A__SEL(s(s(z0)), cons(x1, from(x2))) -> c4(A__SEL(s(mark(z0)), a__from(mark(x2))), MARK(from(x2)))
   A__SEL(s(0), cons(x1, from(x2))) -> c4(A__SEL(0, a__from(mark(x2))), MARK(from(x2)))
   A__SEL(s(x0), cons(x1, from(x2))) -> c4(MARK(from(x2)))
   A__SEL(s(cons(z0, z1)), cons(x1, from(x2))) -> c4(MARK(from(x2)))
   A__SEL(s(x0), cons(x1, sel(x2, from(z0)))) -> c4(A__SEL(mark(x0), a__sel(mark(x2), a__from(mark(z0)))), MARK(sel(x2, from(z0))))
   A__SEL(s(x0), cons(x1, sel(x2, sel(z0, z1)))) -> c4(A__SEL(mark(x0), a__sel(mark(x2), a__sel(mark(z0), mark(z1)))), MARK(sel(x2, sel(z0, z1))))
   A__SEL(s(x0), cons(x1, sel(x2, cons(z0, z1)))) -> c4(A__SEL(mark(x0), a__sel(mark(x2), cons(mark(z0), z1))), MARK(sel(x2, cons(z0, z1))))
   A__SEL(s(x0), cons(x1, sel(x2, s(z0)))) -> c4(A__SEL(mark(x0), a__sel(mark(x2), s(mark(z0)))), MARK(sel(x2, s(z0))))
   A__SEL(s(x0), cons(x1, sel(x2, 0))) -> c4(A__SEL(mark(x0), a__sel(mark(x2), 0)), MARK(sel(x2, 0)))
   A__SEL(s(x0), cons(x1, sel(from(z0), x3))) -> c4(A__SEL(mark(x0), a__sel(a__from(mark(z0)), mark(x3))), MARK(sel(from(z0), x3)))
   A__SEL(s(x0), cons(x1, sel(sel(z0, z1), x3))) -> c4(A__SEL(mark(x0), a__sel(a__sel(mark(z0), mark(z1)), mark(x3))), MARK(sel(sel(z0, z1), x3)))
   A__SEL(s(x0), cons(x1, sel(cons(z0, z1), x3))) -> c4(A__SEL(mark(x0), a__sel(cons(mark(z0), z1), mark(x3))), MARK(sel(cons(z0, z1), x3)))
   A__SEL(s(x0), cons(x1, sel(s(z0), x3))) -> c4(A__SEL(mark(x0), a__sel(s(mark(z0)), mark(x3))), MARK(sel(s(z0), x3)))
   A__SEL(s(x0), cons(x1, sel(0, x3))) -> c4(A__SEL(mark(x0), a__sel(0, mark(x3))), MARK(sel(0, x3)))
   A__SEL(s(from(z0)), cons(x1, sel(x2, x3))) -> c4(A__SEL(a__from(mark(z0)), a__sel(mark(x2), mark(x3))), MARK(sel(x2, x3)))
   A__SEL(s(sel(z0, z1)), cons(x1, sel(x2, x3))) -> c4(A__SEL(a__sel(mark(z0), mark(z1)), a__sel(mark(x2), mark(x3))), MARK(sel(x2, x3)))
   A__SEL(s(s(z0)), cons(x1, sel(x2, x3))) -> c4(A__SEL(s(mark(z0)), a__sel(mark(x2), mark(x3))), MARK(sel(x2, x3)))
   A__SEL(s(0), cons(x1, sel(x2, x3))) -> c4(A__SEL(0, a__sel(mark(x2), mark(x3))), MARK(sel(x2, x3)))
   A__SEL(s(x0), cons(x1, sel(x2, x3))) -> c4(MARK(sel(x2, x3)))
   A__SEL(s(cons(z0, z1)), cons(x1, sel(x2, x3))) -> c4(MARK(sel(x2, x3)))
   A__SEL(s(x0), cons(x1, cons(from(z0), x3))) -> c4(A__SEL(mark(x0), cons(a__from(mark(z0)), x3)), MARK(cons(from(z0), x3)))
   A__SEL(s(x0), cons(x1, cons(sel(z0, z1), x3))) -> c4(A__SEL(mark(x0), cons(a__sel(mark(z0), mark(z1)), x3)), MARK(cons(sel(z0, z1), x3)))
   A__SEL(s(x0), cons(x1, cons(cons(z0, z1), x3))) -> c4(A__SEL(mark(x0), cons(cons(mark(z0), z1), x3)), MARK(cons(cons(z0, z1), x3)))
   A__SEL(s(x0), cons(x1, cons(s(z0), x3))) -> c4(A__SEL(mark(x0), cons(s(mark(z0)), x3)), MARK(cons(s(z0), x3)))
   A__SEL(s(x0), cons(x1, cons(0, x3))) -> c4(A__SEL(mark(x0), cons(0, x3)), MARK(cons(0, x3)))
   A__SEL(s(from(z0)), cons(x1, cons(x2, x3))) -> c4(A__SEL(a__from(mark(z0)), cons(mark(x2), x3)), MARK(cons(x2, x3)))
   A__SEL(s(sel(z0, z1)), cons(x1, cons(x2, x3))) -> c4(A__SEL(a__sel(mark(z0), mark(z1)), cons(mark(x2), x3)), MARK(cons(x2, x3)))
   A__SEL(s(s(z0)), cons(x1, cons(x2, x3))) -> c4(A__SEL(s(mark(z0)), cons(mark(x2), x3)), MARK(cons(x2, x3)))
   A__SEL(s(0), cons(x1, cons(x2, x3))) -> c4(A__SEL(0, cons(mark(x2), x3)), MARK(cons(x2, x3)))
   A__SEL(s(x0), cons(x1, cons(x2, x3))) -> c4(MARK(cons(x2, x3)))
   A__SEL(s(cons(z0, z1)), cons(x1, cons(x2, x3))) -> c4(MARK(cons(x2, x3)))
   A__SEL(s(from(from(z0))), cons(x1, x2)) -> c4(A__SEL(a__from(a__from(mark(z0))), mark(x2)), MARK(x2))
   A__SEL(s(from(sel(z0, z1))), cons(x1, x2)) -> c4(A__SEL(a__from(a__sel(mark(z0), mark(z1))), mark(x2)), MARK(x2))
   A__SEL(s(from(cons(z0, z1))), cons(x1, x2)) -> c4(A__SEL(a__from(cons(mark(z0), z1)), mark(x2)), MARK(x2))
   A__SEL(s(from(s(z0))), cons(x1, x2)) -> c4(A__SEL(a__from(s(mark(z0))), mark(x2)), MARK(x2))
   A__SEL(s(from(0)), cons(x1, x2)) -> c4(A__SEL(a__from(0), mark(x2)), MARK(x2))
   A__SEL(s(from(x0)), cons(x1, s(z0))) -> c4(MARK(s(z0)))
   A__SEL(s(from(x0)), cons(x1, x2)) -> c4(MARK(x2))
   A__SEL(s(sel(x0, from(z0))), cons(x2, x3)) -> c4(A__SEL(a__sel(mark(x0), a__from(mark(z0))), mark(x3)), MARK(x3))
   A__SEL(s(sel(x0, sel(z0, z1))), cons(x2, x3)) -> c4(A__SEL(a__sel(mark(x0), a__sel(mark(z0), mark(z1))), mark(x3)), MARK(x3))
   A__SEL(s(sel(x0, cons(z0, z1))), cons(x2, x3)) -> c4(A__SEL(a__sel(mark(x0), cons(mark(z0), z1)), mark(x3)), MARK(x3))
   A__SEL(s(sel(x0, s(z0))), cons(x2, x3)) -> c4(A__SEL(a__sel(mark(x0), s(mark(z0))), mark(x3)), MARK(x3))
   A__SEL(s(sel(x0, 0)), cons(x2, x3)) -> c4(A__SEL(a__sel(mark(x0), 0), mark(x3)), MARK(x3))
   A__SEL(s(sel(from(z0), x1)), cons(x2, x3)) -> c4(A__SEL(a__sel(a__from(mark(z0)), mark(x1)), mark(x3)), MARK(x3))
   A__SEL(s(sel(sel(z0, z1), x1)), cons(x2, x3)) -> c4(A__SEL(a__sel(a__sel(mark(z0), mark(z1)), mark(x1)), mark(x3)), MARK(x3))
   A__SEL(s(sel(cons(z0, z1), x1)), cons(x2, x3)) -> c4(A__SEL(a__sel(cons(mark(z0), z1), mark(x1)), mark(x3)), MARK(x3))
   A__SEL(s(sel(s(z0), x1)), cons(x2, x3)) -> c4(A__SEL(a__sel(s(mark(z0)), mark(x1)), mark(x3)), MARK(x3))
   A__SEL(s(sel(0, x1)), cons(x2, x3)) -> c4(A__SEL(a__sel(0, mark(x1)), mark(x3)), MARK(x3))
   A__SEL(s(sel(x0, x1)), cons(x2, s(z0))) -> c4(MARK(s(z0)))
   A__SEL(s(sel(x0, x1)), cons(x2, x3)) -> c4(MARK(x3))
   A__SEL(s(s(from(z0))), cons(x1, x2)) -> c4(A__SEL(s(a__from(mark(z0))), mark(x2)), MARK(x2))
   A__SEL(s(s(sel(z0, z1))), cons(x1, x2)) -> c4(A__SEL(s(a__sel(mark(z0), mark(z1))), mark(x2)), MARK(x2))
   A__SEL(s(s(cons(z0, z1))), cons(x1, x2)) -> c4(A__SEL(s(cons(mark(z0), z1)), mark(x2)), MARK(x2))
   A__SEL(s(s(s(z0))), cons(x1, x2)) -> c4(A__SEL(s(s(mark(z0))), mark(x2)), MARK(x2))
   A__SEL(s(s(0)), cons(x1, x2)) -> c4(A__SEL(s(0), mark(x2)), MARK(x2))
   A__SEL(s(s(x0)), cons(x1, s(z0))) -> c4(MARK(s(z0)))
   A__SEL(s(0), cons(x0, s(z0))) -> c4(MARK(s(z0)))
   MARK(sel(x0, from(x1))) -> c7(A__SEL(mark(x0), cons(mark(mark(x1)), from(s(mark(x1))))), MARK(x0))
   MARK(sel(x0, from(from(z0)))) -> c7(A__SEL(mark(x0), a__from(a__from(mark(z0)))), MARK(x0))
   MARK(sel(x0, from(sel(z0, z1)))) -> c7(A__SEL(mark(x0), a__from(a__sel(mark(z0), mark(z1)))), MARK(x0))
   MARK(sel(x0, from(cons(z0, z1)))) -> c7(A__SEL(mark(x0), a__from(cons(mark(z0), z1))), MARK(x0))
   MARK(sel(x0, from(s(z0)))) -> c7(A__SEL(mark(x0), a__from(s(mark(z0)))), MARK(x0))
   MARK(sel(x0, from(0))) -> c7(A__SEL(mark(x0), a__from(0)), MARK(x0))
   MARK(sel(from(z0), from(x1))) -> c7(A__SEL(a__from(mark(z0)), a__from(mark(x1))), MARK(from(z0)))
   MARK(sel(sel(z0, z1), from(x1))) -> c7(A__SEL(a__sel(mark(z0), mark(z1)), a__from(mark(x1))), MARK(sel(z0, z1)))
   MARK(sel(s(z0), from(x1))) -> c7(A__SEL(s(mark(z0)), a__from(mark(x1))), MARK(s(z0)))
   MARK(sel(x0, from(x1))) -> c7(MARK(x0))
   MARK(sel(cons(z0, z1), from(x1))) -> c7(MARK(cons(z0, z1)))
   MARK(sel(0, from(x1))) -> c7(A__SEL(0, a__from(mark(x1))))
   MARK(sel(x0, sel(x1, from(z0)))) -> c7(A__SEL(mark(x0), a__sel(mark(x1), a__from(mark(z0)))), MARK(x0))
   MARK(sel(x0, sel(x1, sel(z0, z1)))) -> c7(A__SEL(mark(x0), a__sel(mark(x1), a__sel(mark(z0), mark(z1)))), MARK(x0))
   MARK(sel(x0, sel(x1, cons(z0, z1)))) -> c7(A__SEL(mark(x0), a__sel(mark(x1), cons(mark(z0), z1))), MARK(x0))
   MARK(sel(x0, sel(x1, s(z0)))) -> c7(A__SEL(mark(x0), a__sel(mark(x1), s(mark(z0)))), MARK(x0))
   MARK(sel(x0, sel(x1, 0))) -> c7(A__SEL(mark(x0), a__sel(mark(x1), 0)), MARK(x0))
   MARK(sel(x0, sel(from(z0), x2))) -> c7(A__SEL(mark(x0), a__sel(a__from(mark(z0)), mark(x2))), MARK(x0))
   MARK(sel(x0, sel(sel(z0, z1), x2))) -> c7(A__SEL(mark(x0), a__sel(a__sel(mark(z0), mark(z1)), mark(x2))), MARK(x0))
   MARK(sel(x0, sel(cons(z0, z1), x2))) -> c7(A__SEL(mark(x0), a__sel(cons(mark(z0), z1), mark(x2))), MARK(x0))
   MARK(sel(x0, sel(s(z0), x2))) -> c7(A__SEL(mark(x0), a__sel(s(mark(z0)), mark(x2))), MARK(x0))
   MARK(sel(x0, sel(0, x2))) -> c7(A__SEL(mark(x0), a__sel(0, mark(x2))), MARK(x0))
   MARK(sel(from(z0), sel(x1, x2))) -> c7(A__SEL(a__from(mark(z0)), a__sel(mark(x1), mark(x2))), MARK(from(z0)))
   MARK(sel(sel(z0, z1), sel(x1, x2))) -> c7(A__SEL(a__sel(mark(z0), mark(z1)), a__sel(mark(x1), mark(x2))), MARK(sel(z0, z1)))
   MARK(sel(s(z0), sel(x1, x2))) -> c7(A__SEL(s(mark(z0)), a__sel(mark(x1), mark(x2))), MARK(s(z0)))
   MARK(sel(x0, sel(x1, x2))) -> c7(MARK(x0))
   MARK(sel(cons(z0, z1), sel(x1, x2))) -> c7(MARK(cons(z0, z1)))
   MARK(sel(0, sel(x1, x2))) -> c7(A__SEL(0, a__sel(mark(x1), mark(x2))))
   MARK(sel(x0, cons(from(z0), x2))) -> c7(A__SEL(mark(x0), cons(a__from(mark(z0)), x2)), MARK(x0))
   MARK(sel(x0, cons(sel(z0, z1), x2))) -> c7(A__SEL(mark(x0), cons(a__sel(mark(z0), mark(z1)), x2)), MARK(x0))
   MARK(sel(x0, cons(cons(z0, z1), x2))) -> c7(A__SEL(mark(x0), cons(cons(mark(z0), z1), x2)), MARK(x0))
   MARK(sel(x0, cons(s(z0), x2))) -> c7(A__SEL(mark(x0), cons(s(mark(z0)), x2)), MARK(x0))
   MARK(sel(x0, cons(0, x2))) -> c7(A__SEL(mark(x0), cons(0, x2)), MARK(x0))
   MARK(sel(from(z0), cons(x1, x2))) -> c7(A__SEL(a__from(mark(z0)), cons(mark(x1), x2)), MARK(from(z0)))
   MARK(sel(sel(z0, z1), cons(x1, x2))) -> c7(A__SEL(a__sel(mark(z0), mark(z1)), cons(mark(x1), x2)), MARK(sel(z0, z1)))
   MARK(sel(s(z0), cons(x1, x2))) -> c7(A__SEL(s(mark(z0)), cons(mark(x1), x2)), MARK(s(z0)))
   MARK(sel(cons(z0, z1), cons(x1, x2))) -> c7(MARK(cons(z0, z1)))
   MARK(sel(0, cons(x1, x2))) -> c7(A__SEL(0, cons(mark(x1), x2)))
   MARK(sel(from(from(z0)), x1)) -> c7(A__SEL(a__from(a__from(mark(z0))), mark(x1)), MARK(from(from(z0))))
   MARK(sel(from(sel(z0, z1)), x1)) -> c7(A__SEL(a__from(a__sel(mark(z0), mark(z1))), mark(x1)), MARK(from(sel(z0, z1))))
   MARK(sel(from(cons(z0, z1)), x1)) -> c7(A__SEL(a__from(cons(mark(z0), z1)), mark(x1)), MARK(from(cons(z0, z1))))
   MARK(sel(from(s(z0)), x1)) -> c7(A__SEL(a__from(s(mark(z0))), mark(x1)), MARK(from(s(z0))))
   MARK(sel(from(0), x1)) -> c7(A__SEL(a__from(0), mark(x1)), MARK(from(0)))
   MARK(sel(from(x0), x1)) -> c7(MARK(from(x0)))
   MARK(sel(from(x0), s(z0))) -> c7(MARK(from(x0)))
   MARK(sel(from(x0), 0)) -> c7(MARK(from(x0)))
   MARK(sel(sel(x0, from(z0)), x2)) -> c7(A__SEL(a__sel(mark(x0), a__from(mark(z0))), mark(x2)), MARK(sel(x0, from(z0))))
   MARK(sel(sel(x0, sel(z0, z1)), x2)) -> c7(A__SEL(a__sel(mark(x0), a__sel(mark(z0), mark(z1))), mark(x2)), MARK(sel(x0, sel(z0, z1))))
   MARK(sel(sel(x0, cons(z0, z1)), x2)) -> c7(A__SEL(a__sel(mark(x0), cons(mark(z0), z1)), mark(x2)), MARK(sel(x0, cons(z0, z1))))
   MARK(sel(sel(x0, s(z0)), x2)) -> c7(A__SEL(a__sel(mark(x0), s(mark(z0))), mark(x2)), MARK(sel(x0, s(z0))))
   MARK(sel(sel(x0, 0), x2)) -> c7(A__SEL(a__sel(mark(x0), 0), mark(x2)), MARK(sel(x0, 0)))
   MARK(sel(sel(from(z0), x1), x2)) -> c7(A__SEL(a__sel(a__from(mark(z0)), mark(x1)), mark(x2)), MARK(sel(from(z0), x1)))
   MARK(sel(sel(sel(z0, z1), x1), x2)) -> c7(A__SEL(a__sel(a__sel(mark(z0), mark(z1)), mark(x1)), mark(x2)), MARK(sel(sel(z0, z1), x1)))
   MARK(sel(sel(cons(z0, z1), x1), x2)) -> c7(A__SEL(a__sel(cons(mark(z0), z1), mark(x1)), mark(x2)), MARK(sel(cons(z0, z1), x1)))
   MARK(sel(sel(s(z0), x1), x2)) -> c7(A__SEL(a__sel(s(mark(z0)), mark(x1)), mark(x2)), MARK(sel(s(z0), x1)))
   MARK(sel(sel(0, x1), x2)) -> c7(A__SEL(a__sel(0, mark(x1)), mark(x2)), MARK(sel(0, x1)))
   MARK(sel(sel(x0, x1), s(z0))) -> c7(MARK(sel(x0, x1)))
   MARK(sel(sel(x0, x1), 0)) -> c7(MARK(sel(x0, x1)))
   MARK(sel(sel(x0, x1), x2)) -> c7(MARK(sel(x0, x1)))
S tuples:
   A__FROM(z0) -> c(MARK(z0))
   A__SEL(0, cons(z0, z1)) -> c2(MARK(z0))
   MARK(from(z0)) -> c6(A__FROM(mark(z0)), MARK(z0))
   MARK(cons(z0, z1)) -> c9(MARK(z0))
   MARK(s(z0)) -> c10(MARK(z0))
   A__SEL(s(x0), cons(x1, s(z0))) -> c3(MARK(x0))
   A__SEL(s(x0), cons(x1, 0)) -> c3(MARK(x0))
   A__SEL(s(cons(z0, z1)), cons(x1, x2)) -> c3(MARK(cons(z0, z1)))
   A__SEL(s(x0), cons(x1, s(z0))) -> c4(MARK(s(z0)))
   A__SEL(s(cons(z0, z1)), cons(x1, x2)) -> c4(MARK(x2))
   MARK(sel(s(z0), x1)) -> c7(A__SEL(s(mark(z0)), mark(x1)), MARK(s(z0)))
   MARK(sel(x0, s(z0))) -> c7(MARK(x0))
   MARK(sel(x0, 0)) -> c7(MARK(x0))
   MARK(sel(cons(z0, z1), x1)) -> c7(MARK(cons(z0, z1)))
   MARK(sel(0, x1)) -> c7(A__SEL(0, mark(x1)))
   MARK(sel(x0, from(z0))) -> c8(A__SEL(mark(x0), a__from(mark(z0))), MARK(from(z0)))
   MARK(sel(x0, sel(z0, z1))) -> c8(A__SEL(mark(x0), a__sel(mark(z0), mark(z1))), MARK(sel(z0, z1)))
   MARK(sel(x0, cons(z0, z1))) -> c8(A__SEL(mark(x0), cons(mark(z0), z1)), MARK(cons(z0, z1)))
   MARK(sel(from(z0), x1)) -> c8(A__SEL(a__from(mark(z0)), mark(x1)), MARK(x1))
   MARK(sel(sel(z0, z1), x1)) -> c8(A__SEL(a__sel(mark(z0), mark(z1)), mark(x1)), MARK(x1))
   MARK(sel(s(z0), x1)) -> c8(A__SEL(s(mark(z0)), mark(x1)), MARK(x1))
   MARK(sel(0, x1)) -> c8(A__SEL(0, mark(x1)), MARK(x1))
   MARK(sel(x0, s(z0))) -> c8(MARK(s(z0)))
   MARK(sel(cons(z0, z1), x1)) -> c8(MARK(x1))
   A__SEL(s(x0), cons(x1, from(x2))) -> c3(A__SEL(mark(x0), cons(mark(mark(x2)), from(s(mark(x2))))), MARK(x0))
   A__SEL(s(x0), cons(x1, from(from(z0)))) -> c3(A__SEL(mark(x0), a__from(a__from(mark(z0)))), MARK(x0))
   A__SEL(s(x0), cons(x1, from(sel(z0, z1)))) -> c3(A__SEL(mark(x0), a__from(a__sel(mark(z0), mark(z1)))), MARK(x0))
   A__SEL(s(x0), cons(x1, from(cons(z0, z1)))) -> c3(A__SEL(mark(x0), a__from(cons(mark(z0), z1))), MARK(x0))
   A__SEL(s(x0), cons(x1, from(s(z0)))) -> c3(A__SEL(mark(x0), a__from(s(mark(z0)))), MARK(x0))
   A__SEL(s(x0), cons(x1, from(0))) -> c3(A__SEL(mark(x0), a__from(0)), MARK(x0))
   A__SEL(s(from(z0)), cons(x1, from(x2))) -> c3(A__SEL(a__from(mark(z0)), a__from(mark(x2))), MARK(from(z0)))
   A__SEL(s(sel(z0, z1)), cons(x1, from(x2))) -> c3(A__SEL(a__sel(mark(z0), mark(z1)), a__from(mark(x2))), MARK(sel(z0, z1)))
   A__SEL(s(s(z0)), cons(x1, from(x2))) -> c3(A__SEL(s(mark(z0)), a__from(mark(x2))), MARK(s(z0)))
   A__SEL(s(x0), cons(x1, from(x2))) -> c3(MARK(x0))
   A__SEL(s(cons(z0, z1)), cons(x1, from(x2))) -> c3(MARK(cons(z0, z1)))
   A__SEL(s(0), cons(x1, from(x2))) -> c3(A__SEL(0, a__from(mark(x2))))
   A__SEL(s(x0), cons(x1, sel(x2, from(z0)))) -> c3(A__SEL(mark(x0), a__sel(mark(x2), a__from(mark(z0)))), MARK(x0))
   A__SEL(s(x0), cons(x1, sel(x2, sel(z0, z1)))) -> c3(A__SEL(mark(x0), a__sel(mark(x2), a__sel(mark(z0), mark(z1)))), MARK(x0))
   A__SEL(s(x0), cons(x1, sel(x2, cons(z0, z1)))) -> c3(A__SEL(mark(x0), a__sel(mark(x2), cons(mark(z0), z1))), MARK(x0))
   A__SEL(s(x0), cons(x1, sel(x2, s(z0)))) -> c3(A__SEL(mark(x0), a__sel(mark(x2), s(mark(z0)))), MARK(x0))
   A__SEL(s(x0), cons(x1, sel(x2, 0))) -> c3(A__SEL(mark(x0), a__sel(mark(x2), 0)), MARK(x0))
   A__SEL(s(x0), cons(x1, sel(from(z0), x3))) -> c3(A__SEL(mark(x0), a__sel(a__from(mark(z0)), mark(x3))), MARK(x0))
   A__SEL(s(x0), cons(x1, sel(sel(z0, z1), x3))) -> c3(A__SEL(mark(x0), a__sel(a__sel(mark(z0), mark(z1)), mark(x3))), MARK(x0))
   A__SEL(s(x0), cons(x1, sel(cons(z0, z1), x3))) -> c3(A__SEL(mark(x0), a__sel(cons(mark(z0), z1), mark(x3))), MARK(x0))
   A__SEL(s(x0), cons(x1, sel(s(z0), x3))) -> c3(A__SEL(mark(x0), a__sel(s(mark(z0)), mark(x3))), MARK(x0))
   A__SEL(s(x0), cons(x1, sel(0, x3))) -> c3(A__SEL(mark(x0), a__sel(0, mark(x3))), MARK(x0))
   A__SEL(s(from(z0)), cons(x1, sel(x2, x3))) -> c3(A__SEL(a__from(mark(z0)), a__sel(mark(x2), mark(x3))), MARK(from(z0)))
   A__SEL(s(sel(z0, z1)), cons(x1, sel(x2, x3))) -> c3(A__SEL(a__sel(mark(z0), mark(z1)), a__sel(mark(x2), mark(x3))), MARK(sel(z0, z1)))
   A__SEL(s(s(z0)), cons(x1, sel(x2, x3))) -> c3(A__SEL(s(mark(z0)), a__sel(mark(x2), mark(x3))), MARK(s(z0)))
   A__SEL(s(x0), cons(x1, sel(x2, x3))) -> c3(MARK(x0))
   A__SEL(s(cons(z0, z1)), cons(x1, sel(x2, x3))) -> c3(MARK(cons(z0, z1)))
   A__SEL(s(0), cons(x1, sel(x2, x3))) -> c3(A__SEL(0, a__sel(mark(x2), mark(x3))))
   A__SEL(s(x0), cons(x1, cons(from(z0), x3))) -> c3(A__SEL(mark(x0), cons(a__from(mark(z0)), x3)), MARK(x0))
   A__SEL(s(x0), cons(x1, cons(sel(z0, z1), x3))) -> c3(A__SEL(mark(x0), cons(a__sel(mark(z0), mark(z1)), x3)), MARK(x0))
   A__SEL(s(x0), cons(x1, cons(cons(z0, z1), x3))) -> c3(A__SEL(mark(x0), cons(cons(mark(z0), z1), x3)), MARK(x0))
   A__SEL(s(x0), cons(x1, cons(s(z0), x3))) -> c3(A__SEL(mark(x0), cons(s(mark(z0)), x3)), MARK(x0))
   A__SEL(s(x0), cons(x1, cons(0, x3))) -> c3(A__SEL(mark(x0), cons(0, x3)), MARK(x0))
   A__SEL(s(from(z0)), cons(x1, cons(x2, x3))) -> c3(A__SEL(a__from(mark(z0)), cons(mark(x2), x3)), MARK(from(z0)))
   A__SEL(s(sel(z0, z1)), cons(x1, cons(x2, x3))) -> c3(A__SEL(a__sel(mark(z0), mark(z1)), cons(mark(x2), x3)), MARK(sel(z0, z1)))
   A__SEL(s(s(z0)), cons(x1, cons(x2, x3))) -> c3(A__SEL(s(mark(z0)), cons(mark(x2), x3)), MARK(s(z0)))
   A__SEL(s(cons(z0, z1)), cons(x1, cons(x2, x3))) -> c3(MARK(cons(z0, z1)))
   A__SEL(s(0), cons(x1, cons(x2, x3))) -> c3(A__SEL(0, cons(mark(x2), x3)))
   A__SEL(s(from(from(z0))), cons(x1, x2)) -> c3(A__SEL(a__from(a__from(mark(z0))), mark(x2)), MARK(from(from(z0))))
   A__SEL(s(from(sel(z0, z1))), cons(x1, x2)) -> c3(A__SEL(a__from(a__sel(mark(z0), mark(z1))), mark(x2)), MARK(from(sel(z0, z1))))
   A__SEL(s(from(cons(z0, z1))), cons(x1, x2)) -> c3(A__SEL(a__from(cons(mark(z0), z1)), mark(x2)), MARK(from(cons(z0, z1))))
   A__SEL(s(from(s(z0))), cons(x1, x2)) -> c3(A__SEL(a__from(s(mark(z0))), mark(x2)), MARK(from(s(z0))))
   A__SEL(s(from(0)), cons(x1, x2)) -> c3(A__SEL(a__from(0), mark(x2)), MARK(from(0)))
   A__SEL(s(from(x0)), cons(x1, x2)) -> c3(MARK(from(x0)))
   A__SEL(s(from(x0)), cons(x1, s(z0))) -> c3(MARK(from(x0)))
   A__SEL(s(from(x0)), cons(x1, 0)) -> c3(MARK(from(x0)))
   A__SEL(s(sel(x0, from(z0))), cons(x2, x3)) -> c3(A__SEL(a__sel(mark(x0), a__from(mark(z0))), mark(x3)), MARK(sel(x0, from(z0))))
   A__SEL(s(sel(x0, sel(z0, z1))), cons(x2, x3)) -> c3(A__SEL(a__sel(mark(x0), a__sel(mark(z0), mark(z1))), mark(x3)), MARK(sel(x0, sel(z0, z1))))
   A__SEL(s(sel(x0, cons(z0, z1))), cons(x2, x3)) -> c3(A__SEL(a__sel(mark(x0), cons(mark(z0), z1)), mark(x3)), MARK(sel(x0, cons(z0, z1))))
   A__SEL(s(sel(x0, s(z0))), cons(x2, x3)) -> c3(A__SEL(a__sel(mark(x0), s(mark(z0))), mark(x3)), MARK(sel(x0, s(z0))))
   A__SEL(s(sel(x0, 0)), cons(x2, x3)) -> c3(A__SEL(a__sel(mark(x0), 0), mark(x3)), MARK(sel(x0, 0)))
   A__SEL(s(sel(from(z0), x1)), cons(x2, x3)) -> c3(A__SEL(a__sel(a__from(mark(z0)), mark(x1)), mark(x3)), MARK(sel(from(z0), x1)))
   A__SEL(s(sel(sel(z0, z1), x1)), cons(x2, x3)) -> c3(A__SEL(a__sel(a__sel(mark(z0), mark(z1)), mark(x1)), mark(x3)), MARK(sel(sel(z0, z1), x1)))
   A__SEL(s(sel(cons(z0, z1), x1)), cons(x2, x3)) -> c3(A__SEL(a__sel(cons(mark(z0), z1), mark(x1)), mark(x3)), MARK(sel(cons(z0, z1), x1)))
   A__SEL(s(sel(s(z0), x1)), cons(x2, x3)) -> c3(A__SEL(a__sel(s(mark(z0)), mark(x1)), mark(x3)), MARK(sel(s(z0), x1)))
   A__SEL(s(sel(0, x1)), cons(x2, x3)) -> c3(A__SEL(a__sel(0, mark(x1)), mark(x3)), MARK(sel(0, x1)))
   A__SEL(s(sel(x0, x1)), cons(x2, s(z0))) -> c3(MARK(sel(x0, x1)))
   A__SEL(s(sel(x0, x1)), cons(x2, 0)) -> c3(MARK(sel(x0, x1)))
   A__SEL(s(sel(x0, x1)), cons(x2, x3)) -> c3(MARK(sel(x0, x1)))
   A__SEL(s(s(from(z0))), cons(x1, x2)) -> c3(A__SEL(s(a__from(mark(z0))), mark(x2)), MARK(s(from(z0))))
   A__SEL(s(s(sel(z0, z1))), cons(x1, x2)) -> c3(A__SEL(s(a__sel(mark(z0), mark(z1))), mark(x2)), MARK(s(sel(z0, z1))))
   A__SEL(s(s(cons(z0, z1))), cons(x1, x2)) -> c3(A__SEL(s(cons(mark(z0), z1)), mark(x2)), MARK(s(cons(z0, z1))))
   A__SEL(s(s(s(z0))), cons(x1, x2)) -> c3(A__SEL(s(s(mark(z0))), mark(x2)), MARK(s(s(z0))))
   A__SEL(s(s(0)), cons(x1, x2)) -> c3(A__SEL(s(0), mark(x2)), MARK(s(0)))
   A__SEL(s(s(x0)), cons(x1, x2)) -> c3(MARK(s(x0)))
   A__SEL(s(s(x0)), cons(x1, s(z0))) -> c3(MARK(s(x0)))
   A__SEL(s(s(x0)), cons(x1, 0)) -> c3(MARK(s(x0)))
   A__SEL(s(x0), cons(x1, from(x2))) -> c4(A__SEL(mark(x0), cons(mark(mark(x2)), from(s(mark(x2))))), MARK(from(x2)))
   A__SEL(s(x0), cons(x1, from(from(z0)))) -> c4(A__SEL(mark(x0), a__from(a__from(mark(z0)))), MARK(from(from(z0))))
   A__SEL(s(x0), cons(x1, from(sel(z0, z1)))) -> c4(A__SEL(mark(x0), a__from(a__sel(mark(z0), mark(z1)))), MARK(from(sel(z0, z1))))
   A__SEL(s(x0), cons(x1, from(cons(z0, z1)))) -> c4(A__SEL(mark(x0), a__from(cons(mark(z0), z1))), MARK(from(cons(z0, z1))))
   A__SEL(s(x0), cons(x1, from(s(z0)))) -> c4(A__SEL(mark(x0), a__from(s(mark(z0)))), MARK(from(s(z0))))
   A__SEL(s(x0), cons(x1, from(0))) -> c4(A__SEL(mark(x0), a__from(0)), MARK(from(0)))
   A__SEL(s(from(z0)), cons(x1, from(x2))) -> c4(A__SEL(a__from(mark(z0)), a__from(mark(x2))), MARK(from(x2)))
   A__SEL(s(sel(z0, z1)), cons(x1, from(x2))) -> c4(A__SEL(a__sel(mark(z0), mark(z1)), a__from(mark(x2))), MARK(from(x2)))
   A__SEL(s(s(z0)), cons(x1, from(x2))) -> c4(A__SEL(s(mark(z0)), a__from(mark(x2))), MARK(from(x2)))
   A__SEL(s(0), cons(x1, from(x2))) -> c4(A__SEL(0, a__from(mark(x2))), MARK(from(x2)))
   A__SEL(s(x0), cons(x1, from(x2))) -> c4(MARK(from(x2)))
   A__SEL(s(cons(z0, z1)), cons(x1, from(x2))) -> c4(MARK(from(x2)))
   A__SEL(s(x0), cons(x1, sel(x2, from(z0)))) -> c4(A__SEL(mark(x0), a__sel(mark(x2), a__from(mark(z0)))), MARK(sel(x2, from(z0))))
   A__SEL(s(x0), cons(x1, sel(x2, sel(z0, z1)))) -> c4(A__SEL(mark(x0), a__sel(mark(x2), a__sel(mark(z0), mark(z1)))), MARK(sel(x2, sel(z0, z1))))
   A__SEL(s(x0), cons(x1, sel(x2, cons(z0, z1)))) -> c4(A__SEL(mark(x0), a__sel(mark(x2), cons(mark(z0), z1))), MARK(sel(x2, cons(z0, z1))))
   A__SEL(s(x0), cons(x1, sel(x2, s(z0)))) -> c4(A__SEL(mark(x0), a__sel(mark(x2), s(mark(z0)))), MARK(sel(x2, s(z0))))
   A__SEL(s(x0), cons(x1, sel(x2, 0))) -> c4(A__SEL(mark(x0), a__sel(mark(x2), 0)), MARK(sel(x2, 0)))
   A__SEL(s(x0), cons(x1, sel(from(z0), x3))) -> c4(A__SEL(mark(x0), a__sel(a__from(mark(z0)), mark(x3))), MARK(sel(from(z0), x3)))
   A__SEL(s(x0), cons(x1, sel(sel(z0, z1), x3))) -> c4(A__SEL(mark(x0), a__sel(a__sel(mark(z0), mark(z1)), mark(x3))), MARK(sel(sel(z0, z1), x3)))
   A__SEL(s(x0), cons(x1, sel(cons(z0, z1), x3))) -> c4(A__SEL(mark(x0), a__sel(cons(mark(z0), z1), mark(x3))), MARK(sel(cons(z0, z1), x3)))
   A__SEL(s(x0), cons(x1, sel(s(z0), x3))) -> c4(A__SEL(mark(x0), a__sel(s(mark(z0)), mark(x3))), MARK(sel(s(z0), x3)))
   A__SEL(s(x0), cons(x1, sel(0, x3))) -> c4(A__SEL(mark(x0), a__sel(0, mark(x3))), MARK(sel(0, x3)))
   A__SEL(s(from(z0)), cons(x1, sel(x2, x3))) -> c4(A__SEL(a__from(mark(z0)), a__sel(mark(x2), mark(x3))), MARK(sel(x2, x3)))
   A__SEL(s(sel(z0, z1)), cons(x1, sel(x2, x3))) -> c4(A__SEL(a__sel(mark(z0), mark(z1)), a__sel(mark(x2), mark(x3))), MARK(sel(x2, x3)))
   A__SEL(s(s(z0)), cons(x1, sel(x2, x3))) -> c4(A__SEL(s(mark(z0)), a__sel(mark(x2), mark(x3))), MARK(sel(x2, x3)))
   A__SEL(s(0), cons(x1, sel(x2, x3))) -> c4(A__SEL(0, a__sel(mark(x2), mark(x3))), MARK(sel(x2, x3)))
   A__SEL(s(x0), cons(x1, sel(x2, x3))) -> c4(MARK(sel(x2, x3)))
   A__SEL(s(cons(z0, z1)), cons(x1, sel(x2, x3))) -> c4(MARK(sel(x2, x3)))
   A__SEL(s(x0), cons(x1, cons(from(z0), x3))) -> c4(A__SEL(mark(x0), cons(a__from(mark(z0)), x3)), MARK(cons(from(z0), x3)))
   A__SEL(s(x0), cons(x1, cons(sel(z0, z1), x3))) -> c4(A__SEL(mark(x0), cons(a__sel(mark(z0), mark(z1)), x3)), MARK(cons(sel(z0, z1), x3)))
   A__SEL(s(x0), cons(x1, cons(cons(z0, z1), x3))) -> c4(A__SEL(mark(x0), cons(cons(mark(z0), z1), x3)), MARK(cons(cons(z0, z1), x3)))
   A__SEL(s(x0), cons(x1, cons(s(z0), x3))) -> c4(A__SEL(mark(x0), cons(s(mark(z0)), x3)), MARK(cons(s(z0), x3)))
   A__SEL(s(x0), cons(x1, cons(0, x3))) -> c4(A__SEL(mark(x0), cons(0, x3)), MARK(cons(0, x3)))
   A__SEL(s(from(z0)), cons(x1, cons(x2, x3))) -> c4(A__SEL(a__from(mark(z0)), cons(mark(x2), x3)), MARK(cons(x2, x3)))
   A__SEL(s(sel(z0, z1)), cons(x1, cons(x2, x3))) -> c4(A__SEL(a__sel(mark(z0), mark(z1)), cons(mark(x2), x3)), MARK(cons(x2, x3)))
   A__SEL(s(s(z0)), cons(x1, cons(x2, x3))) -> c4(A__SEL(s(mark(z0)), cons(mark(x2), x3)), MARK(cons(x2, x3)))
   A__SEL(s(0), cons(x1, cons(x2, x3))) -> c4(A__SEL(0, cons(mark(x2), x3)), MARK(cons(x2, x3)))
   A__SEL(s(x0), cons(x1, cons(x2, x3))) -> c4(MARK(cons(x2, x3)))
   A__SEL(s(cons(z0, z1)), cons(x1, cons(x2, x3))) -> c4(MARK(cons(x2, x3)))
   A__SEL(s(from(from(z0))), cons(x1, x2)) -> c4(A__SEL(a__from(a__from(mark(z0))), mark(x2)), MARK(x2))
   A__SEL(s(from(sel(z0, z1))), cons(x1, x2)) -> c4(A__SEL(a__from(a__sel(mark(z0), mark(z1))), mark(x2)), MARK(x2))
   A__SEL(s(from(cons(z0, z1))), cons(x1, x2)) -> c4(A__SEL(a__from(cons(mark(z0), z1)), mark(x2)), MARK(x2))
   A__SEL(s(from(s(z0))), cons(x1, x2)) -> c4(A__SEL(a__from(s(mark(z0))), mark(x2)), MARK(x2))
   A__SEL(s(from(0)), cons(x1, x2)) -> c4(A__SEL(a__from(0), mark(x2)), MARK(x2))
   A__SEL(s(from(x0)), cons(x1, s(z0))) -> c4(MARK(s(z0)))
   A__SEL(s(from(x0)), cons(x1, x2)) -> c4(MARK(x2))
   A__SEL(s(sel(x0, from(z0))), cons(x2, x3)) -> c4(A__SEL(a__sel(mark(x0), a__from(mark(z0))), mark(x3)), MARK(x3))
   A__SEL(s(sel(x0, sel(z0, z1))), cons(x2, x3)) -> c4(A__SEL(a__sel(mark(x0), a__sel(mark(z0), mark(z1))), mark(x3)), MARK(x3))
   A__SEL(s(sel(x0, cons(z0, z1))), cons(x2, x3)) -> c4(A__SEL(a__sel(mark(x0), cons(mark(z0), z1)), mark(x3)), MARK(x3))
   A__SEL(s(sel(x0, s(z0))), cons(x2, x3)) -> c4(A__SEL(a__sel(mark(x0), s(mark(z0))), mark(x3)), MARK(x3))
   A__SEL(s(sel(x0, 0)), cons(x2, x3)) -> c4(A__SEL(a__sel(mark(x0), 0), mark(x3)), MARK(x3))
   A__SEL(s(sel(from(z0), x1)), cons(x2, x3)) -> c4(A__SEL(a__sel(a__from(mark(z0)), mark(x1)), mark(x3)), MARK(x3))
   A__SEL(s(sel(sel(z0, z1), x1)), cons(x2, x3)) -> c4(A__SEL(a__sel(a__sel(mark(z0), mark(z1)), mark(x1)), mark(x3)), MARK(x3))
   A__SEL(s(sel(cons(z0, z1), x1)), cons(x2, x3)) -> c4(A__SEL(a__sel(cons(mark(z0), z1), mark(x1)), mark(x3)), MARK(x3))
   A__SEL(s(sel(s(z0), x1)), cons(x2, x3)) -> c4(A__SEL(a__sel(s(mark(z0)), mark(x1)), mark(x3)), MARK(x3))
   A__SEL(s(sel(0, x1)), cons(x2, x3)) -> c4(A__SEL(a__sel(0, mark(x1)), mark(x3)), MARK(x3))
   A__SEL(s(sel(x0, x1)), cons(x2, s(z0))) -> c4(MARK(s(z0)))
   A__SEL(s(sel(x0, x1)), cons(x2, x3)) -> c4(MARK(x3))
   A__SEL(s(s(from(z0))), cons(x1, x2)) -> c4(A__SEL(s(a__from(mark(z0))), mark(x2)), MARK(x2))
   A__SEL(s(s(sel(z0, z1))), cons(x1, x2)) -> c4(A__SEL(s(a__sel(mark(z0), mark(z1))), mark(x2)), MARK(x2))
   A__SEL(s(s(cons(z0, z1))), cons(x1, x2)) -> c4(A__SEL(s(cons(mark(z0), z1)), mark(x2)), MARK(x2))
   A__SEL(s(s(s(z0))), cons(x1, x2)) -> c4(A__SEL(s(s(mark(z0))), mark(x2)), MARK(x2))
   A__SEL(s(s(0)), cons(x1, x2)) -> c4(A__SEL(s(0), mark(x2)), MARK(x2))
   A__SEL(s(s(x0)), cons(x1, s(z0))) -> c4(MARK(s(z0)))
   A__SEL(s(0), cons(x0, s(z0))) -> c4(MARK(s(z0)))
   MARK(sel(x0, from(x1))) -> c7(A__SEL(mark(x0), cons(mark(mark(x1)), from(s(mark(x1))))), MARK(x0))
   MARK(sel(x0, from(from(z0)))) -> c7(A__SEL(mark(x0), a__from(a__from(mark(z0)))), MARK(x0))
   MARK(sel(x0, from(sel(z0, z1)))) -> c7(A__SEL(mark(x0), a__from(a__sel(mark(z0), mark(z1)))), MARK(x0))
   MARK(sel(x0, from(cons(z0, z1)))) -> c7(A__SEL(mark(x0), a__from(cons(mark(z0), z1))), MARK(x0))
   MARK(sel(x0, from(s(z0)))) -> c7(A__SEL(mark(x0), a__from(s(mark(z0)))), MARK(x0))
   MARK(sel(x0, from(0))) -> c7(A__SEL(mark(x0), a__from(0)), MARK(x0))
   MARK(sel(from(z0), from(x1))) -> c7(A__SEL(a__from(mark(z0)), a__from(mark(x1))), MARK(from(z0)))
   MARK(sel(sel(z0, z1), from(x1))) -> c7(A__SEL(a__sel(mark(z0), mark(z1)), a__from(mark(x1))), MARK(sel(z0, z1)))
   MARK(sel(s(z0), from(x1))) -> c7(A__SEL(s(mark(z0)), a__from(mark(x1))), MARK(s(z0)))
   MARK(sel(x0, from(x1))) -> c7(MARK(x0))
   MARK(sel(cons(z0, z1), from(x1))) -> c7(MARK(cons(z0, z1)))
   MARK(sel(0, from(x1))) -> c7(A__SEL(0, a__from(mark(x1))))
   MARK(sel(x0, sel(x1, from(z0)))) -> c7(A__SEL(mark(x0), a__sel(mark(x1), a__from(mark(z0)))), MARK(x0))
   MARK(sel(x0, sel(x1, sel(z0, z1)))) -> c7(A__SEL(mark(x0), a__sel(mark(x1), a__sel(mark(z0), mark(z1)))), MARK(x0))
   MARK(sel(x0, sel(x1, cons(z0, z1)))) -> c7(A__SEL(mark(x0), a__sel(mark(x1), cons(mark(z0), z1))), MARK(x0))
   MARK(sel(x0, sel(x1, s(z0)))) -> c7(A__SEL(mark(x0), a__sel(mark(x1), s(mark(z0)))), MARK(x0))
   MARK(sel(x0, sel(x1, 0))) -> c7(A__SEL(mark(x0), a__sel(mark(x1), 0)), MARK(x0))
   MARK(sel(x0, sel(from(z0), x2))) -> c7(A__SEL(mark(x0), a__sel(a__from(mark(z0)), mark(x2))), MARK(x0))
   MARK(sel(x0, sel(sel(z0, z1), x2))) -> c7(A__SEL(mark(x0), a__sel(a__sel(mark(z0), mark(z1)), mark(x2))), MARK(x0))
   MARK(sel(x0, sel(cons(z0, z1), x2))) -> c7(A__SEL(mark(x0), a__sel(cons(mark(z0), z1), mark(x2))), MARK(x0))
   MARK(sel(x0, sel(s(z0), x2))) -> c7(A__SEL(mark(x0), a__sel(s(mark(z0)), mark(x2))), MARK(x0))
   MARK(sel(x0, sel(0, x2))) -> c7(A__SEL(mark(x0), a__sel(0, mark(x2))), MARK(x0))
   MARK(sel(from(z0), sel(x1, x2))) -> c7(A__SEL(a__from(mark(z0)), a__sel(mark(x1), mark(x2))), MARK(from(z0)))
   MARK(sel(sel(z0, z1), sel(x1, x2))) -> c7(A__SEL(a__sel(mark(z0), mark(z1)), a__sel(mark(x1), mark(x2))), MARK(sel(z0, z1)))
   MARK(sel(s(z0), sel(x1, x2))) -> c7(A__SEL(s(mark(z0)), a__sel(mark(x1), mark(x2))), MARK(s(z0)))
   MARK(sel(x0, sel(x1, x2))) -> c7(MARK(x0))
   MARK(sel(cons(z0, z1), sel(x1, x2))) -> c7(MARK(cons(z0, z1)))
   MARK(sel(0, sel(x1, x2))) -> c7(A__SEL(0, a__sel(mark(x1), mark(x2))))
   MARK(sel(x0, cons(from(z0), x2))) -> c7(A__SEL(mark(x0), cons(a__from(mark(z0)), x2)), MARK(x0))
   MARK(sel(x0, cons(sel(z0, z1), x2))) -> c7(A__SEL(mark(x0), cons(a__sel(mark(z0), mark(z1)), x2)), MARK(x0))
   MARK(sel(x0, cons(cons(z0, z1), x2))) -> c7(A__SEL(mark(x0), cons(cons(mark(z0), z1), x2)), MARK(x0))
   MARK(sel(x0, cons(s(z0), x2))) -> c7(A__SEL(mark(x0), cons(s(mark(z0)), x2)), MARK(x0))
   MARK(sel(x0, cons(0, x2))) -> c7(A__SEL(mark(x0), cons(0, x2)), MARK(x0))
   MARK(sel(from(z0), cons(x1, x2))) -> c7(A__SEL(a__from(mark(z0)), cons(mark(x1), x2)), MARK(from(z0)))
   MARK(sel(sel(z0, z1), cons(x1, x2))) -> c7(A__SEL(a__sel(mark(z0), mark(z1)), cons(mark(x1), x2)), MARK(sel(z0, z1)))
   MARK(sel(s(z0), cons(x1, x2))) -> c7(A__SEL(s(mark(z0)), cons(mark(x1), x2)), MARK(s(z0)))
   MARK(sel(cons(z0, z1), cons(x1, x2))) -> c7(MARK(cons(z0, z1)))
   MARK(sel(0, cons(x1, x2))) -> c7(A__SEL(0, cons(mark(x1), x2)))
   MARK(sel(from(from(z0)), x1)) -> c7(A__SEL(a__from(a__from(mark(z0))), mark(x1)), MARK(from(from(z0))))
   MARK(sel(from(sel(z0, z1)), x1)) -> c7(A__SEL(a__from(a__sel(mark(z0), mark(z1))), mark(x1)), MARK(from(sel(z0, z1))))
   MARK(sel(from(cons(z0, z1)), x1)) -> c7(A__SEL(a__from(cons(mark(z0), z1)), mark(x1)), MARK(from(cons(z0, z1))))
   MARK(sel(from(s(z0)), x1)) -> c7(A__SEL(a__from(s(mark(z0))), mark(x1)), MARK(from(s(z0))))
   MARK(sel(from(0), x1)) -> c7(A__SEL(a__from(0), mark(x1)), MARK(from(0)))
   MARK(sel(from(x0), x1)) -> c7(MARK(from(x0)))
   MARK(sel(from(x0), s(z0))) -> c7(MARK(from(x0)))
   MARK(sel(from(x0), 0)) -> c7(MARK(from(x0)))
   MARK(sel(sel(x0, from(z0)), x2)) -> c7(A__SEL(a__sel(mark(x0), a__from(mark(z0))), mark(x2)), MARK(sel(x0, from(z0))))
   MARK(sel(sel(x0, sel(z0, z1)), x2)) -> c7(A__SEL(a__sel(mark(x0), a__sel(mark(z0), mark(z1))), mark(x2)), MARK(sel(x0, sel(z0, z1))))
   MARK(sel(sel(x0, cons(z0, z1)), x2)) -> c7(A__SEL(a__sel(mark(x0), cons(mark(z0), z1)), mark(x2)), MARK(sel(x0, cons(z0, z1))))
   MARK(sel(sel(x0, s(z0)), x2)) -> c7(A__SEL(a__sel(mark(x0), s(mark(z0))), mark(x2)), MARK(sel(x0, s(z0))))
   MARK(sel(sel(x0, 0), x2)) -> c7(A__SEL(a__sel(mark(x0), 0), mark(x2)), MARK(sel(x0, 0)))
   MARK(sel(sel(from(z0), x1), x2)) -> c7(A__SEL(a__sel(a__from(mark(z0)), mark(x1)), mark(x2)), MARK(sel(from(z0), x1)))
   MARK(sel(sel(sel(z0, z1), x1), x2)) -> c7(A__SEL(a__sel(a__sel(mark(z0), mark(z1)), mark(x1)), mark(x2)), MARK(sel(sel(z0, z1), x1)))
   MARK(sel(sel(cons(z0, z1), x1), x2)) -> c7(A__SEL(a__sel(cons(mark(z0), z1), mark(x1)), mark(x2)), MARK(sel(cons(z0, z1), x1)))
   MARK(sel(sel(s(z0), x1), x2)) -> c7(A__SEL(a__sel(s(mark(z0)), mark(x1)), mark(x2)), MARK(sel(s(z0), x1)))
   MARK(sel(sel(0, x1), x2)) -> c7(A__SEL(a__sel(0, mark(x1)), mark(x2)), MARK(sel(0, x1)))
   MARK(sel(sel(x0, x1), s(z0))) -> c7(MARK(sel(x0, x1)))
   MARK(sel(sel(x0, x1), 0)) -> c7(MARK(sel(x0, x1)))
   MARK(sel(sel(x0, x1), x2)) -> c7(MARK(sel(x0, x1)))
K tuples:none
Defined Rule Symbols:   a__from_1, a__sel_2, mark_1

Defined Pair Symbols:   A__FROM_1, A__SEL_2, MARK_1

Compound Symbols:   c_1, c2_1, c6_2, c9_1, c10_1, c3_1, c4_1, c7_2, c7_1, c8_2, c8_1, c3_2, c4_2


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

(161) CdtNarrowingProof (BOTH BOUNDS(ID, ID))
Use narrowing to replace MARK(sel(s(z0), x1)) -> c7(A__SEL(s(mark(z0)), mark(x1)), MARK(s(z0))) by 
   MARK(sel(s(x0), from(z0))) -> c7(A__SEL(s(mark(x0)), a__from(mark(z0))), MARK(s(x0)))
   MARK(sel(s(x0), sel(z0, z1))) -> c7(A__SEL(s(mark(x0)), a__sel(mark(z0), mark(z1))), MARK(s(x0)))
   MARK(sel(s(x0), cons(z0, z1))) -> c7(A__SEL(s(mark(x0)), cons(mark(z0), z1)), MARK(s(x0)))
   MARK(sel(s(x0), s(z0))) -> c7(A__SEL(s(mark(x0)), s(mark(z0))), MARK(s(x0)))
   MARK(sel(s(x0), 0)) -> c7(A__SEL(s(mark(x0)), 0), MARK(s(x0)))
   MARK(sel(s(from(z0)), x1)) -> c7(A__SEL(s(a__from(mark(z0))), mark(x1)), MARK(s(from(z0))))
   MARK(sel(s(sel(z0, z1)), x1)) -> c7(A__SEL(s(a__sel(mark(z0), mark(z1))), mark(x1)), MARK(s(sel(z0, z1))))
   MARK(sel(s(cons(z0, z1)), x1)) -> c7(A__SEL(s(cons(mark(z0), z1)), mark(x1)), MARK(s(cons(z0, z1))))
   MARK(sel(s(s(z0)), x1)) -> c7(A__SEL(s(s(mark(z0))), mark(x1)), MARK(s(s(z0))))
   MARK(sel(s(0), x1)) -> c7(A__SEL(s(0), mark(x1)), MARK(s(0)))
   MARK(sel(s(x0), x1)) -> c7(MARK(s(x0)))

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

(162)
Obligation:
Complexity Dependency Tuples Problem

Rules:
   a__from(z0) -> cons(mark(z0), from(s(z0)))
   a__from(z0) -> from(z0)
   a__sel(0, cons(z0, z1)) -> mark(z0)
   a__sel(s(z0), cons(z1, z2)) -> a__sel(mark(z0), mark(z2))
   a__sel(z0, z1) -> sel(z0, z1)
   mark(from(z0)) -> a__from(mark(z0))
   mark(sel(z0, z1)) -> a__sel(mark(z0), mark(z1))
   mark(cons(z0, z1)) -> cons(mark(z0), z1)
   mark(s(z0)) -> s(mark(z0))
   mark(0) -> 0
Tuples:
   A__FROM(z0) -> c(MARK(z0))
   A__SEL(0, cons(z0, z1)) -> c2(MARK(z0))
   MARK(from(z0)) -> c6(A__FROM(mark(z0)), MARK(z0))
   MARK(cons(z0, z1)) -> c9(MARK(z0))
   MARK(s(z0)) -> c10(MARK(z0))
   A__SEL(s(x0), cons(x1, s(z0))) -> c3(MARK(x0))
   A__SEL(s(x0), cons(x1, 0)) -> c3(MARK(x0))
   A__SEL(s(cons(z0, z1)), cons(x1, x2)) -> c3(MARK(cons(z0, z1)))
   A__SEL(s(x0), cons(x1, s(z0))) -> c4(MARK(s(z0)))
   A__SEL(s(cons(z0, z1)), cons(x1, x2)) -> c4(MARK(x2))
   MARK(sel(x0, s(z0))) -> c7(MARK(x0))
   MARK(sel(x0, 0)) -> c7(MARK(x0))
   MARK(sel(cons(z0, z1), x1)) -> c7(MARK(cons(z0, z1)))
   MARK(sel(0, x1)) -> c7(A__SEL(0, mark(x1)))
   MARK(sel(x0, from(z0))) -> c8(A__SEL(mark(x0), a__from(mark(z0))), MARK(from(z0)))
   MARK(sel(x0, sel(z0, z1))) -> c8(A__SEL(mark(x0), a__sel(mark(z0), mark(z1))), MARK(sel(z0, z1)))
   MARK(sel(x0, cons(z0, z1))) -> c8(A__SEL(mark(x0), cons(mark(z0), z1)), MARK(cons(z0, z1)))
   MARK(sel(from(z0), x1)) -> c8(A__SEL(a__from(mark(z0)), mark(x1)), MARK(x1))
   MARK(sel(sel(z0, z1), x1)) -> c8(A__SEL(a__sel(mark(z0), mark(z1)), mark(x1)), MARK(x1))
   MARK(sel(s(z0), x1)) -> c8(A__SEL(s(mark(z0)), mark(x1)), MARK(x1))
   MARK(sel(0, x1)) -> c8(A__SEL(0, mark(x1)), MARK(x1))
   MARK(sel(x0, s(z0))) -> c8(MARK(s(z0)))
   MARK(sel(cons(z0, z1), x1)) -> c8(MARK(x1))
   A__SEL(s(x0), cons(x1, from(x2))) -> c3(A__SEL(mark(x0), cons(mark(mark(x2)), from(s(mark(x2))))), MARK(x0))
   A__SEL(s(x0), cons(x1, from(from(z0)))) -> c3(A__SEL(mark(x0), a__from(a__from(mark(z0)))), MARK(x0))
   A__SEL(s(x0), cons(x1, from(sel(z0, z1)))) -> c3(A__SEL(mark(x0), a__from(a__sel(mark(z0), mark(z1)))), MARK(x0))
   A__SEL(s(x0), cons(x1, from(cons(z0, z1)))) -> c3(A__SEL(mark(x0), a__from(cons(mark(z0), z1))), MARK(x0))
   A__SEL(s(x0), cons(x1, from(s(z0)))) -> c3(A__SEL(mark(x0), a__from(s(mark(z0)))), MARK(x0))
   A__SEL(s(x0), cons(x1, from(0))) -> c3(A__SEL(mark(x0), a__from(0)), MARK(x0))
   A__SEL(s(from(z0)), cons(x1, from(x2))) -> c3(A__SEL(a__from(mark(z0)), a__from(mark(x2))), MARK(from(z0)))
   A__SEL(s(sel(z0, z1)), cons(x1, from(x2))) -> c3(A__SEL(a__sel(mark(z0), mark(z1)), a__from(mark(x2))), MARK(sel(z0, z1)))
   A__SEL(s(s(z0)), cons(x1, from(x2))) -> c3(A__SEL(s(mark(z0)), a__from(mark(x2))), MARK(s(z0)))
   A__SEL(s(x0), cons(x1, from(x2))) -> c3(MARK(x0))
   A__SEL(s(cons(z0, z1)), cons(x1, from(x2))) -> c3(MARK(cons(z0, z1)))
   A__SEL(s(0), cons(x1, from(x2))) -> c3(A__SEL(0, a__from(mark(x2))))
   A__SEL(s(x0), cons(x1, sel(x2, from(z0)))) -> c3(A__SEL(mark(x0), a__sel(mark(x2), a__from(mark(z0)))), MARK(x0))
   A__SEL(s(x0), cons(x1, sel(x2, sel(z0, z1)))) -> c3(A__SEL(mark(x0), a__sel(mark(x2), a__sel(mark(z0), mark(z1)))), MARK(x0))
   A__SEL(s(x0), cons(x1, sel(x2, cons(z0, z1)))) -> c3(A__SEL(mark(x0), a__sel(mark(x2), cons(mark(z0), z1))), MARK(x0))
   A__SEL(s(x0), cons(x1, sel(x2, s(z0)))) -> c3(A__SEL(mark(x0), a__sel(mark(x2), s(mark(z0)))), MARK(x0))
   A__SEL(s(x0), cons(x1, sel(x2, 0))) -> c3(A__SEL(mark(x0), a__sel(mark(x2), 0)), MARK(x0))
   A__SEL(s(x0), cons(x1, sel(from(z0), x3))) -> c3(A__SEL(mark(x0), a__sel(a__from(mark(z0)), mark(x3))), MARK(x0))
   A__SEL(s(x0), cons(x1, sel(sel(z0, z1), x3))) -> c3(A__SEL(mark(x0), a__sel(a__sel(mark(z0), mark(z1)), mark(x3))), MARK(x0))
   A__SEL(s(x0), cons(x1, sel(cons(z0, z1), x3))) -> c3(A__SEL(mark(x0), a__sel(cons(mark(z0), z1), mark(x3))), MARK(x0))
   A__SEL(s(x0), cons(x1, sel(s(z0), x3))) -> c3(A__SEL(mark(x0), a__sel(s(mark(z0)), mark(x3))), MARK(x0))
   A__SEL(s(x0), cons(x1, sel(0, x3))) -> c3(A__SEL(mark(x0), a__sel(0, mark(x3))), MARK(x0))
   A__SEL(s(from(z0)), cons(x1, sel(x2, x3))) -> c3(A__SEL(a__from(mark(z0)), a__sel(mark(x2), mark(x3))), MARK(from(z0)))
   A__SEL(s(sel(z0, z1)), cons(x1, sel(x2, x3))) -> c3(A__SEL(a__sel(mark(z0), mark(z1)), a__sel(mark(x2), mark(x3))), MARK(sel(z0, z1)))
   A__SEL(s(s(z0)), cons(x1, sel(x2, x3))) -> c3(A__SEL(s(mark(z0)), a__sel(mark(x2), mark(x3))), MARK(s(z0)))
   A__SEL(s(x0), cons(x1, sel(x2, x3))) -> c3(MARK(x0))
   A__SEL(s(cons(z0, z1)), cons(x1, sel(x2, x3))) -> c3(MARK(cons(z0, z1)))
   A__SEL(s(0), cons(x1, sel(x2, x3))) -> c3(A__SEL(0, a__sel(mark(x2), mark(x3))))
   A__SEL(s(x0), cons(x1, cons(from(z0), x3))) -> c3(A__SEL(mark(x0), cons(a__from(mark(z0)), x3)), MARK(x0))
   A__SEL(s(x0), cons(x1, cons(sel(z0, z1), x3))) -> c3(A__SEL(mark(x0), cons(a__sel(mark(z0), mark(z1)), x3)), MARK(x0))
   A__SEL(s(x0), cons(x1, cons(cons(z0, z1), x3))) -> c3(A__SEL(mark(x0), cons(cons(mark(z0), z1), x3)), MARK(x0))
   A__SEL(s(x0), cons(x1, cons(s(z0), x3))) -> c3(A__SEL(mark(x0), cons(s(mark(z0)), x3)), MARK(x0))
   A__SEL(s(x0), cons(x1, cons(0, x3))) -> c3(A__SEL(mark(x0), cons(0, x3)), MARK(x0))
   A__SEL(s(from(z0)), cons(x1, cons(x2, x3))) -> c3(A__SEL(a__from(mark(z0)), cons(mark(x2), x3)), MARK(from(z0)))
   A__SEL(s(sel(z0, z1)), cons(x1, cons(x2, x3))) -> c3(A__SEL(a__sel(mark(z0), mark(z1)), cons(mark(x2), x3)), MARK(sel(z0, z1)))
   A__SEL(s(s(z0)), cons(x1, cons(x2, x3))) -> c3(A__SEL(s(mark(z0)), cons(mark(x2), x3)), MARK(s(z0)))
   A__SEL(s(cons(z0, z1)), cons(x1, cons(x2, x3))) -> c3(MARK(cons(z0, z1)))
   A__SEL(s(0), cons(x1, cons(x2, x3))) -> c3(A__SEL(0, cons(mark(x2), x3)))
   A__SEL(s(from(from(z0))), cons(x1, x2)) -> c3(A__SEL(a__from(a__from(mark(z0))), mark(x2)), MARK(from(from(z0))))
   A__SEL(s(from(sel(z0, z1))), cons(x1, x2)) -> c3(A__SEL(a__from(a__sel(mark(z0), mark(z1))), mark(x2)), MARK(from(sel(z0, z1))))
   A__SEL(s(from(cons(z0, z1))), cons(x1, x2)) -> c3(A__SEL(a__from(cons(mark(z0), z1)), mark(x2)), MARK(from(cons(z0, z1))))
   A__SEL(s(from(s(z0))), cons(x1, x2)) -> c3(A__SEL(a__from(s(mark(z0))), mark(x2)), MARK(from(s(z0))))
   A__SEL(s(from(0)), cons(x1, x2)) -> c3(A__SEL(a__from(0), mark(x2)), MARK(from(0)))
   A__SEL(s(from(x0)), cons(x1, x2)) -> c3(MARK(from(x0)))
   A__SEL(s(from(x0)), cons(x1, s(z0))) -> c3(MARK(from(x0)))
   A__SEL(s(from(x0)), cons(x1, 0)) -> c3(MARK(from(x0)))
   A__SEL(s(sel(x0, from(z0))), cons(x2, x3)) -> c3(A__SEL(a__sel(mark(x0), a__from(mark(z0))), mark(x3)), MARK(sel(x0, from(z0))))
   A__SEL(s(sel(x0, sel(z0, z1))), cons(x2, x3)) -> c3(A__SEL(a__sel(mark(x0), a__sel(mark(z0), mark(z1))), mark(x3)), MARK(sel(x0, sel(z0, z1))))
   A__SEL(s(sel(x0, cons(z0, z1))), cons(x2, x3)) -> c3(A__SEL(a__sel(mark(x0), cons(mark(z0), z1)), mark(x3)), MARK(sel(x0, cons(z0, z1))))
   A__SEL(s(sel(x0, s(z0))), cons(x2, x3)) -> c3(A__SEL(a__sel(mark(x0), s(mark(z0))), mark(x3)), MARK(sel(x0, s(z0))))
   A__SEL(s(sel(x0, 0)), cons(x2, x3)) -> c3(A__SEL(a__sel(mark(x0), 0), mark(x3)), MARK(sel(x0, 0)))
   A__SEL(s(sel(from(z0), x1)), cons(x2, x3)) -> c3(A__SEL(a__sel(a__from(mark(z0)), mark(x1)), mark(x3)), MARK(sel(from(z0), x1)))
   A__SEL(s(sel(sel(z0, z1), x1)), cons(x2, x3)) -> c3(A__SEL(a__sel(a__sel(mark(z0), mark(z1)), mark(x1)), mark(x3)), MARK(sel(sel(z0, z1), x1)))
   A__SEL(s(sel(cons(z0, z1), x1)), cons(x2, x3)) -> c3(A__SEL(a__sel(cons(mark(z0), z1), mark(x1)), mark(x3)), MARK(sel(cons(z0, z1), x1)))
   A__SEL(s(sel(s(z0), x1)), cons(x2, x3)) -> c3(A__SEL(a__sel(s(mark(z0)), mark(x1)), mark(x3)), MARK(sel(s(z0), x1)))
   A__SEL(s(sel(0, x1)), cons(x2, x3)) -> c3(A__SEL(a__sel(0, mark(x1)), mark(x3)), MARK(sel(0, x1)))
   A__SEL(s(sel(x0, x1)), cons(x2, s(z0))) -> c3(MARK(sel(x0, x1)))
   A__SEL(s(sel(x0, x1)), cons(x2, 0)) -> c3(MARK(sel(x0, x1)))
   A__SEL(s(sel(x0, x1)), cons(x2, x3)) -> c3(MARK(sel(x0, x1)))
   A__SEL(s(s(from(z0))), cons(x1, x2)) -> c3(A__SEL(s(a__from(mark(z0))), mark(x2)), MARK(s(from(z0))))
   A__SEL(s(s(sel(z0, z1))), cons(x1, x2)) -> c3(A__SEL(s(a__sel(mark(z0), mark(z1))), mark(x2)), MARK(s(sel(z0, z1))))
   A__SEL(s(s(cons(z0, z1))), cons(x1, x2)) -> c3(A__SEL(s(cons(mark(z0), z1)), mark(x2)), MARK(s(cons(z0, z1))))
   A__SEL(s(s(s(z0))), cons(x1, x2)) -> c3(A__SEL(s(s(mark(z0))), mark(x2)), MARK(s(s(z0))))
   A__SEL(s(s(0)), cons(x1, x2)) -> c3(A__SEL(s(0), mark(x2)), MARK(s(0)))
   A__SEL(s(s(x0)), cons(x1, x2)) -> c3(MARK(s(x0)))
   A__SEL(s(s(x0)), cons(x1, s(z0))) -> c3(MARK(s(x0)))
   A__SEL(s(s(x0)), cons(x1, 0)) -> c3(MARK(s(x0)))
   A__SEL(s(x0), cons(x1, from(x2))) -> c4(A__SEL(mark(x0), cons(mark(mark(x2)), from(s(mark(x2))))), MARK(from(x2)))
   A__SEL(s(x0), cons(x1, from(from(z0)))) -> c4(A__SEL(mark(x0), a__from(a__from(mark(z0)))), MARK(from(from(z0))))
   A__SEL(s(x0), cons(x1, from(sel(z0, z1)))) -> c4(A__SEL(mark(x0), a__from(a__sel(mark(z0), mark(z1)))), MARK(from(sel(z0, z1))))
   A__SEL(s(x0), cons(x1, from(cons(z0, z1)))) -> c4(A__SEL(mark(x0), a__from(cons(mark(z0), z1))), MARK(from(cons(z0, z1))))
   A__SEL(s(x0), cons(x1, from(s(z0)))) -> c4(A__SEL(mark(x0), a__from(s(mark(z0)))), MARK(from(s(z0))))
   A__SEL(s(x0), cons(x1, from(0))) -> c4(A__SEL(mark(x0), a__from(0)), MARK(from(0)))
   A__SEL(s(from(z0)), cons(x1, from(x2))) -> c4(A__SEL(a__from(mark(z0)), a__from(mark(x2))), MARK(from(x2)))
   A__SEL(s(sel(z0, z1)), cons(x1, from(x2))) -> c4(A__SEL(a__sel(mark(z0), mark(z1)), a__from(mark(x2))), MARK(from(x2)))
   A__SEL(s(s(z0)), cons(x1, from(x2))) -> c4(A__SEL(s(mark(z0)), a__from(mark(x2))), MARK(from(x2)))
   A__SEL(s(0), cons(x1, from(x2))) -> c4(A__SEL(0, a__from(mark(x2))), MARK(from(x2)))
   A__SEL(s(x0), cons(x1, from(x2))) -> c4(MARK(from(x2)))
   A__SEL(s(cons(z0, z1)), cons(x1, from(x2))) -> c4(MARK(from(x2)))
   A__SEL(s(x0), cons(x1, sel(x2, from(z0)))) -> c4(A__SEL(mark(x0), a__sel(mark(x2), a__from(mark(z0)))), MARK(sel(x2, from(z0))))
   A__SEL(s(x0), cons(x1, sel(x2, sel(z0, z1)))) -> c4(A__SEL(mark(x0), a__sel(mark(x2), a__sel(mark(z0), mark(z1)))), MARK(sel(x2, sel(z0, z1))))
   A__SEL(s(x0), cons(x1, sel(x2, cons(z0, z1)))) -> c4(A__SEL(mark(x0), a__sel(mark(x2), cons(mark(z0), z1))), MARK(sel(x2, cons(z0, z1))))
   A__SEL(s(x0), cons(x1, sel(x2, s(z0)))) -> c4(A__SEL(mark(x0), a__sel(mark(x2), s(mark(z0)))), MARK(sel(x2, s(z0))))
   A__SEL(s(x0), cons(x1, sel(x2, 0))) -> c4(A__SEL(mark(x0), a__sel(mark(x2), 0)), MARK(sel(x2, 0)))
   A__SEL(s(x0), cons(x1, sel(from(z0), x3))) -> c4(A__SEL(mark(x0), a__sel(a__from(mark(z0)), mark(x3))), MARK(sel(from(z0), x3)))
   A__SEL(s(x0), cons(x1, sel(sel(z0, z1), x3))) -> c4(A__SEL(mark(x0), a__sel(a__sel(mark(z0), mark(z1)), mark(x3))), MARK(sel(sel(z0, z1), x3)))
   A__SEL(s(x0), cons(x1, sel(cons(z0, z1), x3))) -> c4(A__SEL(mark(x0), a__sel(cons(mark(z0), z1), mark(x3))), MARK(sel(cons(z0, z1), x3)))
   A__SEL(s(x0), cons(x1, sel(s(z0), x3))) -> c4(A__SEL(mark(x0), a__sel(s(mark(z0)), mark(x3))), MARK(sel(s(z0), x3)))
   A__SEL(s(x0), cons(x1, sel(0, x3))) -> c4(A__SEL(mark(x0), a__sel(0, mark(x3))), MARK(sel(0, x3)))
   A__SEL(s(from(z0)), cons(x1, sel(x2, x3))) -> c4(A__SEL(a__from(mark(z0)), a__sel(mark(x2), mark(x3))), MARK(sel(x2, x3)))
   A__SEL(s(sel(z0, z1)), cons(x1, sel(x2, x3))) -> c4(A__SEL(a__sel(mark(z0), mark(z1)), a__sel(mark(x2), mark(x3))), MARK(sel(x2, x3)))
   A__SEL(s(s(z0)), cons(x1, sel(x2, x3))) -> c4(A__SEL(s(mark(z0)), a__sel(mark(x2), mark(x3))), MARK(sel(x2, x3)))
   A__SEL(s(0), cons(x1, sel(x2, x3))) -> c4(A__SEL(0, a__sel(mark(x2), mark(x3))), MARK(sel(x2, x3)))
   A__SEL(s(x0), cons(x1, sel(x2, x3))) -> c4(MARK(sel(x2, x3)))
   A__SEL(s(cons(z0, z1)), cons(x1, sel(x2, x3))) -> c4(MARK(sel(x2, x3)))
   A__SEL(s(x0), cons(x1, cons(from(z0), x3))) -> c4(A__SEL(mark(x0), cons(a__from(mark(z0)), x3)), MARK(cons(from(z0), x3)))
   A__SEL(s(x0), cons(x1, cons(sel(z0, z1), x3))) -> c4(A__SEL(mark(x0), cons(a__sel(mark(z0), mark(z1)), x3)), MARK(cons(sel(z0, z1), x3)))
   A__SEL(s(x0), cons(x1, cons(cons(z0, z1), x3))) -> c4(A__SEL(mark(x0), cons(cons(mark(z0), z1), x3)), MARK(cons(cons(z0, z1), x3)))
   A__SEL(s(x0), cons(x1, cons(s(z0), x3))) -> c4(A__SEL(mark(x0), cons(s(mark(z0)), x3)), MARK(cons(s(z0), x3)))
   A__SEL(s(x0), cons(x1, cons(0, x3))) -> c4(A__SEL(mark(x0), cons(0, x3)), MARK(cons(0, x3)))
   A__SEL(s(from(z0)), cons(x1, cons(x2, x3))) -> c4(A__SEL(a__from(mark(z0)), cons(mark(x2), x3)), MARK(cons(x2, x3)))
   A__SEL(s(sel(z0, z1)), cons(x1, cons(x2, x3))) -> c4(A__SEL(a__sel(mark(z0), mark(z1)), cons(mark(x2), x3)), MARK(cons(x2, x3)))
   A__SEL(s(s(z0)), cons(x1, cons(x2, x3))) -> c4(A__SEL(s(mark(z0)), cons(mark(x2), x3)), MARK(cons(x2, x3)))
   A__SEL(s(0), cons(x1, cons(x2, x3))) -> c4(A__SEL(0, cons(mark(x2), x3)), MARK(cons(x2, x3)))
   A__SEL(s(x0), cons(x1, cons(x2, x3))) -> c4(MARK(cons(x2, x3)))
   A__SEL(s(cons(z0, z1)), cons(x1, cons(x2, x3))) -> c4(MARK(cons(x2, x3)))
   A__SEL(s(from(from(z0))), cons(x1, x2)) -> c4(A__SEL(a__from(a__from(mark(z0))), mark(x2)), MARK(x2))
   A__SEL(s(from(sel(z0, z1))), cons(x1, x2)) -> c4(A__SEL(a__from(a__sel(mark(z0), mark(z1))), mark(x2)), MARK(x2))
   A__SEL(s(from(cons(z0, z1))), cons(x1, x2)) -> c4(A__SEL(a__from(cons(mark(z0), z1)), mark(x2)), MARK(x2))
   A__SEL(s(from(s(z0))), cons(x1, x2)) -> c4(A__SEL(a__from(s(mark(z0))), mark(x2)), MARK(x2))
   A__SEL(s(from(0)), cons(x1, x2)) -> c4(A__SEL(a__from(0), mark(x2)), MARK(x2))
   A__SEL(s(from(x0)), cons(x1, s(z0))) -> c4(MARK(s(z0)))
   A__SEL(s(from(x0)), cons(x1, x2)) -> c4(MARK(x2))
   A__SEL(s(sel(x0, from(z0))), cons(x2, x3)) -> c4(A__SEL(a__sel(mark(x0), a__from(mark(z0))), mark(x3)), MARK(x3))
   A__SEL(s(sel(x0, sel(z0, z1))), cons(x2, x3)) -> c4(A__SEL(a__sel(mark(x0), a__sel(mark(z0), mark(z1))), mark(x3)), MARK(x3))
   A__SEL(s(sel(x0, cons(z0, z1))), cons(x2, x3)) -> c4(A__SEL(a__sel(mark(x0), cons(mark(z0), z1)), mark(x3)), MARK(x3))
   A__SEL(s(sel(x0, s(z0))), cons(x2, x3)) -> c4(A__SEL(a__sel(mark(x0), s(mark(z0))), mark(x3)), MARK(x3))
   A__SEL(s(sel(x0, 0)), cons(x2, x3)) -> c4(A__SEL(a__sel(mark(x0), 0), mark(x3)), MARK(x3))
   A__SEL(s(sel(from(z0), x1)), cons(x2, x3)) -> c4(A__SEL(a__sel(a__from(mark(z0)), mark(x1)), mark(x3)), MARK(x3))
   A__SEL(s(sel(sel(z0, z1), x1)), cons(x2, x3)) -> c4(A__SEL(a__sel(a__sel(mark(z0), mark(z1)), mark(x1)), mark(x3)), MARK(x3))
   A__SEL(s(sel(cons(z0, z1), x1)), cons(x2, x3)) -> c4(A__SEL(a__sel(cons(mark(z0), z1), mark(x1)), mark(x3)), MARK(x3))
   A__SEL(s(sel(s(z0), x1)), cons(x2, x3)) -> c4(A__SEL(a__sel(s(mark(z0)), mark(x1)), mark(x3)), MARK(x3))
   A__SEL(s(sel(0, x1)), cons(x2, x3)) -> c4(A__SEL(a__sel(0, mark(x1)), mark(x3)), MARK(x3))
   A__SEL(s(sel(x0, x1)), cons(x2, s(z0))) -> c4(MARK(s(z0)))
   A__SEL(s(sel(x0, x1)), cons(x2, x3)) -> c4(MARK(x3))
   A__SEL(s(s(from(z0))), cons(x1, x2)) -> c4(A__SEL(s(a__from(mark(z0))), mark(x2)), MARK(x2))
   A__SEL(s(s(sel(z0, z1))), cons(x1, x2)) -> c4(A__SEL(s(a__sel(mark(z0), mark(z1))), mark(x2)), MARK(x2))
   A__SEL(s(s(cons(z0, z1))), cons(x1, x2)) -> c4(A__SEL(s(cons(mark(z0), z1)), mark(x2)), MARK(x2))
   A__SEL(s(s(s(z0))), cons(x1, x2)) -> c4(A__SEL(s(s(mark(z0))), mark(x2)), MARK(x2))
   A__SEL(s(s(0)), cons(x1, x2)) -> c4(A__SEL(s(0), mark(x2)), MARK(x2))
   A__SEL(s(s(x0)), cons(x1, s(z0))) -> c4(MARK(s(z0)))
   A__SEL(s(0), cons(x0, s(z0))) -> c4(MARK(s(z0)))
   MARK(sel(x0, from(x1))) -> c7(A__SEL(mark(x0), cons(mark(mark(x1)), from(s(mark(x1))))), MARK(x0))
   MARK(sel(x0, from(from(z0)))) -> c7(A__SEL(mark(x0), a__from(a__from(mark(z0)))), MARK(x0))
   MARK(sel(x0, from(sel(z0, z1)))) -> c7(A__SEL(mark(x0), a__from(a__sel(mark(z0), mark(z1)))), MARK(x0))
   MARK(sel(x0, from(cons(z0, z1)))) -> c7(A__SEL(mark(x0), a__from(cons(mark(z0), z1))), MARK(x0))
   MARK(sel(x0, from(s(z0)))) -> c7(A__SEL(mark(x0), a__from(s(mark(z0)))), MARK(x0))
   MARK(sel(x0, from(0))) -> c7(A__SEL(mark(x0), a__from(0)), MARK(x0))
   MARK(sel(from(z0), from(x1))) -> c7(A__SEL(a__from(mark(z0)), a__from(mark(x1))), MARK(from(z0)))
   MARK(sel(sel(z0, z1), from(x1))) -> c7(A__SEL(a__sel(mark(z0), mark(z1)), a__from(mark(x1))), MARK(sel(z0, z1)))
   MARK(sel(s(z0), from(x1))) -> c7(A__SEL(s(mark(z0)), a__from(mark(x1))), MARK(s(z0)))
   MARK(sel(x0, from(x1))) -> c7(MARK(x0))
   MARK(sel(cons(z0, z1), from(x1))) -> c7(MARK(cons(z0, z1)))
   MARK(sel(0, from(x1))) -> c7(A__SEL(0, a__from(mark(x1))))
   MARK(sel(x0, sel(x1, from(z0)))) -> c7(A__SEL(mark(x0), a__sel(mark(x1), a__from(mark(z0)))), MARK(x0))
   MARK(sel(x0, sel(x1, sel(z0, z1)))) -> c7(A__SEL(mark(x0), a__sel(mark(x1), a__sel(mark(z0), mark(z1)))), MARK(x0))
   MARK(sel(x0, sel(x1, cons(z0, z1)))) -> c7(A__SEL(mark(x0), a__sel(mark(x1), cons(mark(z0), z1))), MARK(x0))
   MARK(sel(x0, sel(x1, s(z0)))) -> c7(A__SEL(mark(x0), a__sel(mark(x1), s(mark(z0)))), MARK(x0))
   MARK(sel(x0, sel(x1, 0))) -> c7(A__SEL(mark(x0), a__sel(mark(x1), 0)), MARK(x0))
   MARK(sel(x0, sel(from(z0), x2))) -> c7(A__SEL(mark(x0), a__sel(a__from(mark(z0)), mark(x2))), MARK(x0))
   MARK(sel(x0, sel(sel(z0, z1), x2))) -> c7(A__SEL(mark(x0), a__sel(a__sel(mark(z0), mark(z1)), mark(x2))), MARK(x0))
   MARK(sel(x0, sel(cons(z0, z1), x2))) -> c7(A__SEL(mark(x0), a__sel(cons(mark(z0), z1), mark(x2))), MARK(x0))
   MARK(sel(x0, sel(s(z0), x2))) -> c7(A__SEL(mark(x0), a__sel(s(mark(z0)), mark(x2))), MARK(x0))
   MARK(sel(x0, sel(0, x2))) -> c7(A__SEL(mark(x0), a__sel(0, mark(x2))), MARK(x0))
   MARK(sel(from(z0), sel(x1, x2))) -> c7(A__SEL(a__from(mark(z0)), a__sel(mark(x1), mark(x2))), MARK(from(z0)))
   MARK(sel(sel(z0, z1), sel(x1, x2))) -> c7(A__SEL(a__sel(mark(z0), mark(z1)), a__sel(mark(x1), mark(x2))), MARK(sel(z0, z1)))
   MARK(sel(s(z0), sel(x1, x2))) -> c7(A__SEL(s(mark(z0)), a__sel(mark(x1), mark(x2))), MARK(s(z0)))
   MARK(sel(x0, sel(x1, x2))) -> c7(MARK(x0))
   MARK(sel(cons(z0, z1), sel(x1, x2))) -> c7(MARK(cons(z0, z1)))
   MARK(sel(0, sel(x1, x2))) -> c7(A__SEL(0, a__sel(mark(x1), mark(x2))))
   MARK(sel(x0, cons(from(z0), x2))) -> c7(A__SEL(mark(x0), cons(a__from(mark(z0)), x2)), MARK(x0))
   MARK(sel(x0, cons(sel(z0, z1), x2))) -> c7(A__SEL(mark(x0), cons(a__sel(mark(z0), mark(z1)), x2)), MARK(x0))
   MARK(sel(x0, cons(cons(z0, z1), x2))) -> c7(A__SEL(mark(x0), cons(cons(mark(z0), z1), x2)), MARK(x0))
   MARK(sel(x0, cons(s(z0), x2))) -> c7(A__SEL(mark(x0), cons(s(mark(z0)), x2)), MARK(x0))
   MARK(sel(x0, cons(0, x2))) -> c7(A__SEL(mark(x0), cons(0, x2)), MARK(x0))
   MARK(sel(from(z0), cons(x1, x2))) -> c7(A__SEL(a__from(mark(z0)), cons(mark(x1), x2)), MARK(from(z0)))
   MARK(sel(sel(z0, z1), cons(x1, x2))) -> c7(A__SEL(a__sel(mark(z0), mark(z1)), cons(mark(x1), x2)), MARK(sel(z0, z1)))
   MARK(sel(s(z0), cons(x1, x2))) -> c7(A__SEL(s(mark(z0)), cons(mark(x1), x2)), MARK(s(z0)))
   MARK(sel(cons(z0, z1), cons(x1, x2))) -> c7(MARK(cons(z0, z1)))
   MARK(sel(0, cons(x1, x2))) -> c7(A__SEL(0, cons(mark(x1), x2)))
   MARK(sel(from(from(z0)), x1)) -> c7(A__SEL(a__from(a__from(mark(z0))), mark(x1)), MARK(from(from(z0))))
   MARK(sel(from(sel(z0, z1)), x1)) -> c7(A__SEL(a__from(a__sel(mark(z0), mark(z1))), mark(x1)), MARK(from(sel(z0, z1))))
   MARK(sel(from(cons(z0, z1)), x1)) -> c7(A__SEL(a__from(cons(mark(z0), z1)), mark(x1)), MARK(from(cons(z0, z1))))
   MARK(sel(from(s(z0)), x1)) -> c7(A__SEL(a__from(s(mark(z0))), mark(x1)), MARK(from(s(z0))))
   MARK(sel(from(0), x1)) -> c7(A__SEL(a__from(0), mark(x1)), MARK(from(0)))
   MARK(sel(from(x0), x1)) -> c7(MARK(from(x0)))
   MARK(sel(from(x0), s(z0))) -> c7(MARK(from(x0)))
   MARK(sel(from(x0), 0)) -> c7(MARK(from(x0)))
   MARK(sel(sel(x0, from(z0)), x2)) -> c7(A__SEL(a__sel(mark(x0), a__from(mark(z0))), mark(x2)), MARK(sel(x0, from(z0))))
   MARK(sel(sel(x0, sel(z0, z1)), x2)) -> c7(A__SEL(a__sel(mark(x0), a__sel(mark(z0), mark(z1))), mark(x2)), MARK(sel(x0, sel(z0, z1))))
   MARK(sel(sel(x0, cons(z0, z1)), x2)) -> c7(A__SEL(a__sel(mark(x0), cons(mark(z0), z1)), mark(x2)), MARK(sel(x0, cons(z0, z1))))
   MARK(sel(sel(x0, s(z0)), x2)) -> c7(A__SEL(a__sel(mark(x0), s(mark(z0))), mark(x2)), MARK(sel(x0, s(z0))))
   MARK(sel(sel(x0, 0), x2)) -> c7(A__SEL(a__sel(mark(x0), 0), mark(x2)), MARK(sel(x0, 0)))
   MARK(sel(sel(from(z0), x1), x2)) -> c7(A__SEL(a__sel(a__from(mark(z0)), mark(x1)), mark(x2)), MARK(sel(from(z0), x1)))
   MARK(sel(sel(sel(z0, z1), x1), x2)) -> c7(A__SEL(a__sel(a__sel(mark(z0), mark(z1)), mark(x1)), mark(x2)), MARK(sel(sel(z0, z1), x1)))
   MARK(sel(sel(cons(z0, z1), x1), x2)) -> c7(A__SEL(a__sel(cons(mark(z0), z1), mark(x1)), mark(x2)), MARK(sel(cons(z0, z1), x1)))
   MARK(sel(sel(s(z0), x1), x2)) -> c7(A__SEL(a__sel(s(mark(z0)), mark(x1)), mark(x2)), MARK(sel(s(z0), x1)))
   MARK(sel(sel(0, x1), x2)) -> c7(A__SEL(a__sel(0, mark(x1)), mark(x2)), MARK(sel(0, x1)))
   MARK(sel(sel(x0, x1), s(z0))) -> c7(MARK(sel(x0, x1)))
   MARK(sel(sel(x0, x1), 0)) -> c7(MARK(sel(x0, x1)))
   MARK(sel(sel(x0, x1), x2)) -> c7(MARK(sel(x0, x1)))
   MARK(sel(s(x0), s(z0))) -> c7(A__SEL(s(mark(x0)), s(mark(z0))), MARK(s(x0)))
   MARK(sel(s(x0), 0)) -> c7(A__SEL(s(mark(x0)), 0), MARK(s(x0)))
   MARK(sel(s(from(z0)), x1)) -> c7(A__SEL(s(a__from(mark(z0))), mark(x1)), MARK(s(from(z0))))
   MARK(sel(s(sel(z0, z1)), x1)) -> c7(A__SEL(s(a__sel(mark(z0), mark(z1))), mark(x1)), MARK(s(sel(z0, z1))))
   MARK(sel(s(cons(z0, z1)), x1)) -> c7(A__SEL(s(cons(mark(z0), z1)), mark(x1)), MARK(s(cons(z0, z1))))
   MARK(sel(s(s(z0)), x1)) -> c7(A__SEL(s(s(mark(z0))), mark(x1)), MARK(s(s(z0))))
   MARK(sel(s(0), x1)) -> c7(A__SEL(s(0), mark(x1)), MARK(s(0)))
   MARK(sel(s(x0), x1)) -> c7(MARK(s(x0)))
S tuples:
   A__FROM(z0) -> c(MARK(z0))
   A__SEL(0, cons(z0, z1)) -> c2(MARK(z0))
   MARK(from(z0)) -> c6(A__FROM(mark(z0)), MARK(z0))
   MARK(cons(z0, z1)) -> c9(MARK(z0))
   MARK(s(z0)) -> c10(MARK(z0))
   A__SEL(s(x0), cons(x1, s(z0))) -> c3(MARK(x0))
   A__SEL(s(x0), cons(x1, 0)) -> c3(MARK(x0))
   A__SEL(s(cons(z0, z1)), cons(x1, x2)) -> c3(MARK(cons(z0, z1)))
   A__SEL(s(x0), cons(x1, s(z0))) -> c4(MARK(s(z0)))
   A__SEL(s(cons(z0, z1)), cons(x1, x2)) -> c4(MARK(x2))
   MARK(sel(x0, s(z0))) -> c7(MARK(x0))
   MARK(sel(x0, 0)) -> c7(MARK(x0))
   MARK(sel(cons(z0, z1), x1)) -> c7(MARK(cons(z0, z1)))
   MARK(sel(0, x1)) -> c7(A__SEL(0, mark(x1)))
   MARK(sel(x0, from(z0))) -> c8(A__SEL(mark(x0), a__from(mark(z0))), MARK(from(z0)))
   MARK(sel(x0, sel(z0, z1))) -> c8(A__SEL(mark(x0), a__sel(mark(z0), mark(z1))), MARK(sel(z0, z1)))
   MARK(sel(x0, cons(z0, z1))) -> c8(A__SEL(mark(x0), cons(mark(z0), z1)), MARK(cons(z0, z1)))
   MARK(sel(from(z0), x1)) -> c8(A__SEL(a__from(mark(z0)), mark(x1)), MARK(x1))
   MARK(sel(sel(z0, z1), x1)) -> c8(A__SEL(a__sel(mark(z0), mark(z1)), mark(x1)), MARK(x1))
   MARK(sel(s(z0), x1)) -> c8(A__SEL(s(mark(z0)), mark(x1)), MARK(x1))
   MARK(sel(0, x1)) -> c8(A__SEL(0, mark(x1)), MARK(x1))
   MARK(sel(x0, s(z0))) -> c8(MARK(s(z0)))
   MARK(sel(cons(z0, z1), x1)) -> c8(MARK(x1))
   A__SEL(s(x0), cons(x1, from(x2))) -> c3(A__SEL(mark(x0), cons(mark(mark(x2)), from(s(mark(x2))))), MARK(x0))
   A__SEL(s(x0), cons(x1, from(from(z0)))) -> c3(A__SEL(mark(x0), a__from(a__from(mark(z0)))), MARK(x0))
   A__SEL(s(x0), cons(x1, from(sel(z0, z1)))) -> c3(A__SEL(mark(x0), a__from(a__sel(mark(z0), mark(z1)))), MARK(x0))
   A__SEL(s(x0), cons(x1, from(cons(z0, z1)))) -> c3(A__SEL(mark(x0), a__from(cons(mark(z0), z1))), MARK(x0))
   A__SEL(s(x0), cons(x1, from(s(z0)))) -> c3(A__SEL(mark(x0), a__from(s(mark(z0)))), MARK(x0))
   A__SEL(s(x0), cons(x1, from(0))) -> c3(A__SEL(mark(x0), a__from(0)), MARK(x0))
   A__SEL(s(from(z0)), cons(x1, from(x2))) -> c3(A__SEL(a__from(mark(z0)), a__from(mark(x2))), MARK(from(z0)))
   A__SEL(s(sel(z0, z1)), cons(x1, from(x2))) -> c3(A__SEL(a__sel(mark(z0), mark(z1)), a__from(mark(x2))), MARK(sel(z0, z1)))
   A__SEL(s(s(z0)), cons(x1, from(x2))) -> c3(A__SEL(s(mark(z0)), a__from(mark(x2))), MARK(s(z0)))
   A__SEL(s(x0), cons(x1, from(x2))) -> c3(MARK(x0))
   A__SEL(s(cons(z0, z1)), cons(x1, from(x2))) -> c3(MARK(cons(z0, z1)))
   A__SEL(s(0), cons(x1, from(x2))) -> c3(A__SEL(0, a__from(mark(x2))))
   A__SEL(s(x0), cons(x1, sel(x2, from(z0)))) -> c3(A__SEL(mark(x0), a__sel(mark(x2), a__from(mark(z0)))), MARK(x0))
   A__SEL(s(x0), cons(x1, sel(x2, sel(z0, z1)))) -> c3(A__SEL(mark(x0), a__sel(mark(x2), a__sel(mark(z0), mark(z1)))), MARK(x0))
   A__SEL(s(x0), cons(x1, sel(x2, cons(z0, z1)))) -> c3(A__SEL(mark(x0), a__sel(mark(x2), cons(mark(z0), z1))), MARK(x0))
   A__SEL(s(x0), cons(x1, sel(x2, s(z0)))) -> c3(A__SEL(mark(x0), a__sel(mark(x2), s(mark(z0)))), MARK(x0))
   A__SEL(s(x0), cons(x1, sel(x2, 0))) -> c3(A__SEL(mark(x0), a__sel(mark(x2), 0)), MARK(x0))
   A__SEL(s(x0), cons(x1, sel(from(z0), x3))) -> c3(A__SEL(mark(x0), a__sel(a__from(mark(z0)), mark(x3))), MARK(x0))
   A__SEL(s(x0), cons(x1, sel(sel(z0, z1), x3))) -> c3(A__SEL(mark(x0), a__sel(a__sel(mark(z0), mark(z1)), mark(x3))), MARK(x0))
   A__SEL(s(x0), cons(x1, sel(cons(z0, z1), x3))) -> c3(A__SEL(mark(x0), a__sel(cons(mark(z0), z1), mark(x3))), MARK(x0))
   A__SEL(s(x0), cons(x1, sel(s(z0), x3))) -> c3(A__SEL(mark(x0), a__sel(s(mark(z0)), mark(x3))), MARK(x0))
   A__SEL(s(x0), cons(x1, sel(0, x3))) -> c3(A__SEL(mark(x0), a__sel(0, mark(x3))), MARK(x0))
   A__SEL(s(from(z0)), cons(x1, sel(x2, x3))) -> c3(A__SEL(a__from(mark(z0)), a__sel(mark(x2), mark(x3))), MARK(from(z0)))
   A__SEL(s(sel(z0, z1)), cons(x1, sel(x2, x3))) -> c3(A__SEL(a__sel(mark(z0), mark(z1)), a__sel(mark(x2), mark(x3))), MARK(sel(z0, z1)))
   A__SEL(s(s(z0)), cons(x1, sel(x2, x3))) -> c3(A__SEL(s(mark(z0)), a__sel(mark(x2), mark(x3))), MARK(s(z0)))
   A__SEL(s(x0), cons(x1, sel(x2, x3))) -> c3(MARK(x0))
   A__SEL(s(cons(z0, z1)), cons(x1, sel(x2, x3))) -> c3(MARK(cons(z0, z1)))
   A__SEL(s(0), cons(x1, sel(x2, x3))) -> c3(A__SEL(0, a__sel(mark(x2), mark(x3))))
   A__SEL(s(x0), cons(x1, cons(from(z0), x3))) -> c3(A__SEL(mark(x0), cons(a__from(mark(z0)), x3)), MARK(x0))
   A__SEL(s(x0), cons(x1, cons(sel(z0, z1), x3))) -> c3(A__SEL(mark(x0), cons(a__sel(mark(z0), mark(z1)), x3)), MARK(x0))
   A__SEL(s(x0), cons(x1, cons(cons(z0, z1), x3))) -> c3(A__SEL(mark(x0), cons(cons(mark(z0), z1), x3)), MARK(x0))
   A__SEL(s(x0), cons(x1, cons(s(z0), x3))) -> c3(A__SEL(mark(x0), cons(s(mark(z0)), x3)), MARK(x0))
   A__SEL(s(x0), cons(x1, cons(0, x3))) -> c3(A__SEL(mark(x0), cons(0, x3)), MARK(x0))
   A__SEL(s(from(z0)), cons(x1, cons(x2, x3))) -> c3(A__SEL(a__from(mark(z0)), cons(mark(x2), x3)), MARK(from(z0)))
   A__SEL(s(sel(z0, z1)), cons(x1, cons(x2, x3))) -> c3(A__SEL(a__sel(mark(z0), mark(z1)), cons(mark(x2), x3)), MARK(sel(z0, z1)))
   A__SEL(s(s(z0)), cons(x1, cons(x2, x3))) -> c3(A__SEL(s(mark(z0)), cons(mark(x2), x3)), MARK(s(z0)))
   A__SEL(s(cons(z0, z1)), cons(x1, cons(x2, x3))) -> c3(MARK(cons(z0, z1)))
   A__SEL(s(0), cons(x1, cons(x2, x3))) -> c3(A__SEL(0, cons(mark(x2), x3)))
   A__SEL(s(from(from(z0))), cons(x1, x2)) -> c3(A__SEL(a__from(a__from(mark(z0))), mark(x2)), MARK(from(from(z0))))
   A__SEL(s(from(sel(z0, z1))), cons(x1, x2)) -> c3(A__SEL(a__from(a__sel(mark(z0), mark(z1))), mark(x2)), MARK(from(sel(z0, z1))))
   A__SEL(s(from(cons(z0, z1))), cons(x1, x2)) -> c3(A__SEL(a__from(cons(mark(z0), z1)), mark(x2)), MARK(from(cons(z0, z1))))
   A__SEL(s(from(s(z0))), cons(x1, x2)) -> c3(A__SEL(a__from(s(mark(z0))), mark(x2)), MARK(from(s(z0))))
   A__SEL(s(from(0)), cons(x1, x2)) -> c3(A__SEL(a__from(0), mark(x2)), MARK(from(0)))
   A__SEL(s(from(x0)), cons(x1, x2)) -> c3(MARK(from(x0)))
   A__SEL(s(from(x0)), cons(x1, s(z0))) -> c3(MARK(from(x0)))
   A__SEL(s(from(x0)), cons(x1, 0)) -> c3(MARK(from(x0)))
   A__SEL(s(sel(x0, from(z0))), cons(x2, x3)) -> c3(A__SEL(a__sel(mark(x0), a__from(mark(z0))), mark(x3)), MARK(sel(x0, from(z0))))
   A__SEL(s(sel(x0, sel(z0, z1))), cons(x2, x3)) -> c3(A__SEL(a__sel(mark(x0), a__sel(mark(z0), mark(z1))), mark(x3)), MARK(sel(x0, sel(z0, z1))))
   A__SEL(s(sel(x0, cons(z0, z1))), cons(x2, x3)) -> c3(A__SEL(a__sel(mark(x0), cons(mark(z0), z1)), mark(x3)), MARK(sel(x0, cons(z0, z1))))
   A__SEL(s(sel(x0, s(z0))), cons(x2, x3)) -> c3(A__SEL(a__sel(mark(x0), s(mark(z0))), mark(x3)), MARK(sel(x0, s(z0))))
   A__SEL(s(sel(x0, 0)), cons(x2, x3)) -> c3(A__SEL(a__sel(mark(x0), 0), mark(x3)), MARK(sel(x0, 0)))
   A__SEL(s(sel(from(z0), x1)), cons(x2, x3)) -> c3(A__SEL(a__sel(a__from(mark(z0)), mark(x1)), mark(x3)), MARK(sel(from(z0), x1)))
   A__SEL(s(sel(sel(z0, z1), x1)), cons(x2, x3)) -> c3(A__SEL(a__sel(a__sel(mark(z0), mark(z1)), mark(x1)), mark(x3)), MARK(sel(sel(z0, z1), x1)))
   A__SEL(s(sel(cons(z0, z1), x1)), cons(x2, x3)) -> c3(A__SEL(a__sel(cons(mark(z0), z1), mark(x1)), mark(x3)), MARK(sel(cons(z0, z1), x1)))
   A__SEL(s(sel(s(z0), x1)), cons(x2, x3)) -> c3(A__SEL(a__sel(s(mark(z0)), mark(x1)), mark(x3)), MARK(sel(s(z0), x1)))
   A__SEL(s(sel(0, x1)), cons(x2, x3)) -> c3(A__SEL(a__sel(0, mark(x1)), mark(x3)), MARK(sel(0, x1)))
   A__SEL(s(sel(x0, x1)), cons(x2, s(z0))) -> c3(MARK(sel(x0, x1)))
   A__SEL(s(sel(x0, x1)), cons(x2, 0)) -> c3(MARK(sel(x0, x1)))
   A__SEL(s(sel(x0, x1)), cons(x2, x3)) -> c3(MARK(sel(x0, x1)))
   A__SEL(s(s(from(z0))), cons(x1, x2)) -> c3(A__SEL(s(a__from(mark(z0))), mark(x2)), MARK(s(from(z0))))
   A__SEL(s(s(sel(z0, z1))), cons(x1, x2)) -> c3(A__SEL(s(a__sel(mark(z0), mark(z1))), mark(x2)), MARK(s(sel(z0, z1))))
   A__SEL(s(s(cons(z0, z1))), cons(x1, x2)) -> c3(A__SEL(s(cons(mark(z0), z1)), mark(x2)), MARK(s(cons(z0, z1))))
   A__SEL(s(s(s(z0))), cons(x1, x2)) -> c3(A__SEL(s(s(mark(z0))), mark(x2)), MARK(s(s(z0))))
   A__SEL(s(s(0)), cons(x1, x2)) -> c3(A__SEL(s(0), mark(x2)), MARK(s(0)))
   A__SEL(s(s(x0)), cons(x1, x2)) -> c3(MARK(s(x0)))
   A__SEL(s(s(x0)), cons(x1, s(z0))) -> c3(MARK(s(x0)))
   A__SEL(s(s(x0)), cons(x1, 0)) -> c3(MARK(s(x0)))
   A__SEL(s(x0), cons(x1, from(x2))) -> c4(A__SEL(mark(x0), cons(mark(mark(x2)), from(s(mark(x2))))), MARK(from(x2)))
   A__SEL(s(x0), cons(x1, from(from(z0)))) -> c4(A__SEL(mark(x0), a__from(a__from(mark(z0)))), MARK(from(from(z0))))
   A__SEL(s(x0), cons(x1, from(sel(z0, z1)))) -> c4(A__SEL(mark(x0), a__from(a__sel(mark(z0), mark(z1)))), MARK(from(sel(z0, z1))))
   A__SEL(s(x0), cons(x1, from(cons(z0, z1)))) -> c4(A__SEL(mark(x0), a__from(cons(mark(z0), z1))), MARK(from(cons(z0, z1))))
   A__SEL(s(x0), cons(x1, from(s(z0)))) -> c4(A__SEL(mark(x0), a__from(s(mark(z0)))), MARK(from(s(z0))))
   A__SEL(s(x0), cons(x1, from(0))) -> c4(A__SEL(mark(x0), a__from(0)), MARK(from(0)))
   A__SEL(s(from(z0)), cons(x1, from(x2))) -> c4(A__SEL(a__from(mark(z0)), a__from(mark(x2))), MARK(from(x2)))
   A__SEL(s(sel(z0, z1)), cons(x1, from(x2))) -> c4(A__SEL(a__sel(mark(z0), mark(z1)), a__from(mark(x2))), MARK(from(x2)))
   A__SEL(s(s(z0)), cons(x1, from(x2))) -> c4(A__SEL(s(mark(z0)), a__from(mark(x2))), MARK(from(x2)))
   A__SEL(s(0), cons(x1, from(x2))) -> c4(A__SEL(0, a__from(mark(x2))), MARK(from(x2)))
   A__SEL(s(x0), cons(x1, from(x2))) -> c4(MARK(from(x2)))
   A__SEL(s(cons(z0, z1)), cons(x1, from(x2))) -> c4(MARK(from(x2)))
   A__SEL(s(x0), cons(x1, sel(x2, from(z0)))) -> c4(A__SEL(mark(x0), a__sel(mark(x2), a__from(mark(z0)))), MARK(sel(x2, from(z0))))
   A__SEL(s(x0), cons(x1, sel(x2, sel(z0, z1)))) -> c4(A__SEL(mark(x0), a__sel(mark(x2), a__sel(mark(z0), mark(z1)))), MARK(sel(x2, sel(z0, z1))))
   A__SEL(s(x0), cons(x1, sel(x2, cons(z0, z1)))) -> c4(A__SEL(mark(x0), a__sel(mark(x2), cons(mark(z0), z1))), MARK(sel(x2, cons(z0, z1))))
   A__SEL(s(x0), cons(x1, sel(x2, s(z0)))) -> c4(A__SEL(mark(x0), a__sel(mark(x2), s(mark(z0)))), MARK(sel(x2, s(z0))))
   A__SEL(s(x0), cons(x1, sel(x2, 0))) -> c4(A__SEL(mark(x0), a__sel(mark(x2), 0)), MARK(sel(x2, 0)))
   A__SEL(s(x0), cons(x1, sel(from(z0), x3))) -> c4(A__SEL(mark(x0), a__sel(a__from(mark(z0)), mark(x3))), MARK(sel(from(z0), x3)))
   A__SEL(s(x0), cons(x1, sel(sel(z0, z1), x3))) -> c4(A__SEL(mark(x0), a__sel(a__sel(mark(z0), mark(z1)), mark(x3))), MARK(sel(sel(z0, z1), x3)))
   A__SEL(s(x0), cons(x1, sel(cons(z0, z1), x3))) -> c4(A__SEL(mark(x0), a__sel(cons(mark(z0), z1), mark(x3))), MARK(sel(cons(z0, z1), x3)))
   A__SEL(s(x0), cons(x1, sel(s(z0), x3))) -> c4(A__SEL(mark(x0), a__sel(s(mark(z0)), mark(x3))), MARK(sel(s(z0), x3)))
   A__SEL(s(x0), cons(x1, sel(0, x3))) -> c4(A__SEL(mark(x0), a__sel(0, mark(x3))), MARK(sel(0, x3)))
   A__SEL(s(from(z0)), cons(x1, sel(x2, x3))) -> c4(A__SEL(a__from(mark(z0)), a__sel(mark(x2), mark(x3))), MARK(sel(x2, x3)))
   A__SEL(s(sel(z0, z1)), cons(x1, sel(x2, x3))) -> c4(A__SEL(a__sel(mark(z0), mark(z1)), a__sel(mark(x2), mark(x3))), MARK(sel(x2, x3)))
   A__SEL(s(s(z0)), cons(x1, sel(x2, x3))) -> c4(A__SEL(s(mark(z0)), a__sel(mark(x2), mark(x3))), MARK(sel(x2, x3)))
   A__SEL(s(0), cons(x1, sel(x2, x3))) -> c4(A__SEL(0, a__sel(mark(x2), mark(x3))), MARK(sel(x2, x3)))
   A__SEL(s(x0), cons(x1, sel(x2, x3))) -> c4(MARK(sel(x2, x3)))
   A__SEL(s(cons(z0, z1)), cons(x1, sel(x2, x3))) -> c4(MARK(sel(x2, x3)))
   A__SEL(s(x0), cons(x1, cons(from(z0), x3))) -> c4(A__SEL(mark(x0), cons(a__from(mark(z0)), x3)), MARK(cons(from(z0), x3)))
   A__SEL(s(x0), cons(x1, cons(sel(z0, z1), x3))) -> c4(A__SEL(mark(x0), cons(a__sel(mark(z0), mark(z1)), x3)), MARK(cons(sel(z0, z1), x3)))
   A__SEL(s(x0), cons(x1, cons(cons(z0, z1), x3))) -> c4(A__SEL(mark(x0), cons(cons(mark(z0), z1), x3)), MARK(cons(cons(z0, z1), x3)))
   A__SEL(s(x0), cons(x1, cons(s(z0), x3))) -> c4(A__SEL(mark(x0), cons(s(mark(z0)), x3)), MARK(cons(s(z0), x3)))
   A__SEL(s(x0), cons(x1, cons(0, x3))) -> c4(A__SEL(mark(x0), cons(0, x3)), MARK(cons(0, x3)))
   A__SEL(s(from(z0)), cons(x1, cons(x2, x3))) -> c4(A__SEL(a__from(mark(z0)), cons(mark(x2), x3)), MARK(cons(x2, x3)))
   A__SEL(s(sel(z0, z1)), cons(x1, cons(x2, x3))) -> c4(A__SEL(a__sel(mark(z0), mark(z1)), cons(mark(x2), x3)), MARK(cons(x2, x3)))
   A__SEL(s(s(z0)), cons(x1, cons(x2, x3))) -> c4(A__SEL(s(mark(z0)), cons(mark(x2), x3)), MARK(cons(x2, x3)))
   A__SEL(s(0), cons(x1, cons(x2, x3))) -> c4(A__SEL(0, cons(mark(x2), x3)), MARK(cons(x2, x3)))
   A__SEL(s(x0), cons(x1, cons(x2, x3))) -> c4(MARK(cons(x2, x3)))
   A__SEL(s(cons(z0, z1)), cons(x1, cons(x2, x3))) -> c4(MARK(cons(x2, x3)))
   A__SEL(s(from(from(z0))), cons(x1, x2)) -> c4(A__SEL(a__from(a__from(mark(z0))), mark(x2)), MARK(x2))
   A__SEL(s(from(sel(z0, z1))), cons(x1, x2)) -> c4(A__SEL(a__from(a__sel(mark(z0), mark(z1))), mark(x2)), MARK(x2))
   A__SEL(s(from(cons(z0, z1))), cons(x1, x2)) -> c4(A__SEL(a__from(cons(mark(z0), z1)), mark(x2)), MARK(x2))
   A__SEL(s(from(s(z0))), cons(x1, x2)) -> c4(A__SEL(a__from(s(mark(z0))), mark(x2)), MARK(x2))
   A__SEL(s(from(0)), cons(x1, x2)) -> c4(A__SEL(a__from(0), mark(x2)), MARK(x2))
   A__SEL(s(from(x0)), cons(x1, s(z0))) -> c4(MARK(s(z0)))
   A__SEL(s(from(x0)), cons(x1, x2)) -> c4(MARK(x2))
   A__SEL(s(sel(x0, from(z0))), cons(x2, x3)) -> c4(A__SEL(a__sel(mark(x0), a__from(mark(z0))), mark(x3)), MARK(x3))
   A__SEL(s(sel(x0, sel(z0, z1))), cons(x2, x3)) -> c4(A__SEL(a__sel(mark(x0), a__sel(mark(z0), mark(z1))), mark(x3)), MARK(x3))
   A__SEL(s(sel(x0, cons(z0, z1))), cons(x2, x3)) -> c4(A__SEL(a__sel(mark(x0), cons(mark(z0), z1)), mark(x3)), MARK(x3))
   A__SEL(s(sel(x0, s(z0))), cons(x2, x3)) -> c4(A__SEL(a__sel(mark(x0), s(mark(z0))), mark(x3)), MARK(x3))
   A__SEL(s(sel(x0, 0)), cons(x2, x3)) -> c4(A__SEL(a__sel(mark(x0), 0), mark(x3)), MARK(x3))
   A__SEL(s(sel(from(z0), x1)), cons(x2, x3)) -> c4(A__SEL(a__sel(a__from(mark(z0)), mark(x1)), mark(x3)), MARK(x3))
   A__SEL(s(sel(sel(z0, z1), x1)), cons(x2, x3)) -> c4(A__SEL(a__sel(a__sel(mark(z0), mark(z1)), mark(x1)), mark(x3)), MARK(x3))
   A__SEL(s(sel(cons(z0, z1), x1)), cons(x2, x3)) -> c4(A__SEL(a__sel(cons(mark(z0), z1), mark(x1)), mark(x3)), MARK(x3))
   A__SEL(s(sel(s(z0), x1)), cons(x2, x3)) -> c4(A__SEL(a__sel(s(mark(z0)), mark(x1)), mark(x3)), MARK(x3))
   A__SEL(s(sel(0, x1)), cons(x2, x3)) -> c4(A__SEL(a__sel(0, mark(x1)), mark(x3)), MARK(x3))
   A__SEL(s(sel(x0, x1)), cons(x2, s(z0))) -> c4(MARK(s(z0)))
   A__SEL(s(sel(x0, x1)), cons(x2, x3)) -> c4(MARK(x3))
   A__SEL(s(s(from(z0))), cons(x1, x2)) -> c4(A__SEL(s(a__from(mark(z0))), mark(x2)), MARK(x2))
   A__SEL(s(s(sel(z0, z1))), cons(x1, x2)) -> c4(A__SEL(s(a__sel(mark(z0), mark(z1))), mark(x2)), MARK(x2))
   A__SEL(s(s(cons(z0, z1))), cons(x1, x2)) -> c4(A__SEL(s(cons(mark(z0), z1)), mark(x2)), MARK(x2))
   A__SEL(s(s(s(z0))), cons(x1, x2)) -> c4(A__SEL(s(s(mark(z0))), mark(x2)), MARK(x2))
   A__SEL(s(s(0)), cons(x1, x2)) -> c4(A__SEL(s(0), mark(x2)), MARK(x2))
   A__SEL(s(s(x0)), cons(x1, s(z0))) -> c4(MARK(s(z0)))
   A__SEL(s(0), cons(x0, s(z0))) -> c4(MARK(s(z0)))
   MARK(sel(x0, from(x1))) -> c7(A__SEL(mark(x0), cons(mark(mark(x1)), from(s(mark(x1))))), MARK(x0))
   MARK(sel(x0, from(from(z0)))) -> c7(A__SEL(mark(x0), a__from(a__from(mark(z0)))), MARK(x0))
   MARK(sel(x0, from(sel(z0, z1)))) -> c7(A__SEL(mark(x0), a__from(a__sel(mark(z0), mark(z1)))), MARK(x0))
   MARK(sel(x0, from(cons(z0, z1)))) -> c7(A__SEL(mark(x0), a__from(cons(mark(z0), z1))), MARK(x0))
   MARK(sel(x0, from(s(z0)))) -> c7(A__SEL(mark(x0), a__from(s(mark(z0)))), MARK(x0))
   MARK(sel(x0, from(0))) -> c7(A__SEL(mark(x0), a__from(0)), MARK(x0))
   MARK(sel(from(z0), from(x1))) -> c7(A__SEL(a__from(mark(z0)), a__from(mark(x1))), MARK(from(z0)))
   MARK(sel(sel(z0, z1), from(x1))) -> c7(A__SEL(a__sel(mark(z0), mark(z1)), a__from(mark(x1))), MARK(sel(z0, z1)))
   MARK(sel(s(z0), from(x1))) -> c7(A__SEL(s(mark(z0)), a__from(mark(x1))), MARK(s(z0)))
   MARK(sel(x0, from(x1))) -> c7(MARK(x0))
   MARK(sel(cons(z0, z1), from(x1))) -> c7(MARK(cons(z0, z1)))
   MARK(sel(0, from(x1))) -> c7(A__SEL(0, a__from(mark(x1))))
   MARK(sel(x0, sel(x1, from(z0)))) -> c7(A__SEL(mark(x0), a__sel(mark(x1), a__from(mark(z0)))), MARK(x0))
   MARK(sel(x0, sel(x1, sel(z0, z1)))) -> c7(A__SEL(mark(x0), a__sel(mark(x1), a__sel(mark(z0), mark(z1)))), MARK(x0))
   MARK(sel(x0, sel(x1, cons(z0, z1)))) -> c7(A__SEL(mark(x0), a__sel(mark(x1), cons(mark(z0), z1))), MARK(x0))
   MARK(sel(x0, sel(x1, s(z0)))) -> c7(A__SEL(mark(x0), a__sel(mark(x1), s(mark(z0)))), MARK(x0))
   MARK(sel(x0, sel(x1, 0))) -> c7(A__SEL(mark(x0), a__sel(mark(x1), 0)), MARK(x0))
   MARK(sel(x0, sel(from(z0), x2))) -> c7(A__SEL(mark(x0), a__sel(a__from(mark(z0)), mark(x2))), MARK(x0))
   MARK(sel(x0, sel(sel(z0, z1), x2))) -> c7(A__SEL(mark(x0), a__sel(a__sel(mark(z0), mark(z1)), mark(x2))), MARK(x0))
   MARK(sel(x0, sel(cons(z0, z1), x2))) -> c7(A__SEL(mark(x0), a__sel(cons(mark(z0), z1), mark(x2))), MARK(x0))
   MARK(sel(x0, sel(s(z0), x2))) -> c7(A__SEL(mark(x0), a__sel(s(mark(z0)), mark(x2))), MARK(x0))
   MARK(sel(x0, sel(0, x2))) -> c7(A__SEL(mark(x0), a__sel(0, mark(x2))), MARK(x0))
   MARK(sel(from(z0), sel(x1, x2))) -> c7(A__SEL(a__from(mark(z0)), a__sel(mark(x1), mark(x2))), MARK(from(z0)))
   MARK(sel(sel(z0, z1), sel(x1, x2))) -> c7(A__SEL(a__sel(mark(z0), mark(z1)), a__sel(mark(x1), mark(x2))), MARK(sel(z0, z1)))
   MARK(sel(s(z0), sel(x1, x2))) -> c7(A__SEL(s(mark(z0)), a__sel(mark(x1), mark(x2))), MARK(s(z0)))
   MARK(sel(x0, sel(x1, x2))) -> c7(MARK(x0))
   MARK(sel(cons(z0, z1), sel(x1, x2))) -> c7(MARK(cons(z0, z1)))
   MARK(sel(0, sel(x1, x2))) -> c7(A__SEL(0, a__sel(mark(x1), mark(x2))))
   MARK(sel(x0, cons(from(z0), x2))) -> c7(A__SEL(mark(x0), cons(a__from(mark(z0)), x2)), MARK(x0))
   MARK(sel(x0, cons(sel(z0, z1), x2))) -> c7(A__SEL(mark(x0), cons(a__sel(mark(z0), mark(z1)), x2)), MARK(x0))
   MARK(sel(x0, cons(cons(z0, z1), x2))) -> c7(A__SEL(mark(x0), cons(cons(mark(z0), z1), x2)), MARK(x0))
   MARK(sel(x0, cons(s(z0), x2))) -> c7(A__SEL(mark(x0), cons(s(mark(z0)), x2)), MARK(x0))
   MARK(sel(x0, cons(0, x2))) -> c7(A__SEL(mark(x0), cons(0, x2)), MARK(x0))
   MARK(sel(from(z0), cons(x1, x2))) -> c7(A__SEL(a__from(mark(z0)), cons(mark(x1), x2)), MARK(from(z0)))
   MARK(sel(sel(z0, z1), cons(x1, x2))) -> c7(A__SEL(a__sel(mark(z0), mark(z1)), cons(mark(x1), x2)), MARK(sel(z0, z1)))
   MARK(sel(s(z0), cons(x1, x2))) -> c7(A__SEL(s(mark(z0)), cons(mark(x1), x2)), MARK(s(z0)))
   MARK(sel(cons(z0, z1), cons(x1, x2))) -> c7(MARK(cons(z0, z1)))
   MARK(sel(0, cons(x1, x2))) -> c7(A__SEL(0, cons(mark(x1), x2)))
   MARK(sel(from(from(z0)), x1)) -> c7(A__SEL(a__from(a__from(mark(z0))), mark(x1)), MARK(from(from(z0))))
   MARK(sel(from(sel(z0, z1)), x1)) -> c7(A__SEL(a__from(a__sel(mark(z0), mark(z1))), mark(x1)), MARK(from(sel(z0, z1))))
   MARK(sel(from(cons(z0, z1)), x1)) -> c7(A__SEL(a__from(cons(mark(z0), z1)), mark(x1)), MARK(from(cons(z0, z1))))
   MARK(sel(from(s(z0)), x1)) -> c7(A__SEL(a__from(s(mark(z0))), mark(x1)), MARK(from(s(z0))))
   MARK(sel(from(0), x1)) -> c7(A__SEL(a__from(0), mark(x1)), MARK(from(0)))
   MARK(sel(from(x0), x1)) -> c7(MARK(from(x0)))
   MARK(sel(from(x0), s(z0))) -> c7(MARK(from(x0)))
   MARK(sel(from(x0), 0)) -> c7(MARK(from(x0)))
   MARK(sel(sel(x0, from(z0)), x2)) -> c7(A__SEL(a__sel(mark(x0), a__from(mark(z0))), mark(x2)), MARK(sel(x0, from(z0))))
   MARK(sel(sel(x0, sel(z0, z1)), x2)) -> c7(A__SEL(a__sel(mark(x0), a__sel(mark(z0), mark(z1))), mark(x2)), MARK(sel(x0, sel(z0, z1))))
   MARK(sel(sel(x0, cons(z0, z1)), x2)) -> c7(A__SEL(a__sel(mark(x0), cons(mark(z0), z1)), mark(x2)), MARK(sel(x0, cons(z0, z1))))
   MARK(sel(sel(x0, s(z0)), x2)) -> c7(A__SEL(a__sel(mark(x0), s(mark(z0))), mark(x2)), MARK(sel(x0, s(z0))))
   MARK(sel(sel(x0, 0), x2)) -> c7(A__SEL(a__sel(mark(x0), 0), mark(x2)), MARK(sel(x0, 0)))
   MARK(sel(sel(from(z0), x1), x2)) -> c7(A__SEL(a__sel(a__from(mark(z0)), mark(x1)), mark(x2)), MARK(sel(from(z0), x1)))
   MARK(sel(sel(sel(z0, z1), x1), x2)) -> c7(A__SEL(a__sel(a__sel(mark(z0), mark(z1)), mark(x1)), mark(x2)), MARK(sel(sel(z0, z1), x1)))
   MARK(sel(sel(cons(z0, z1), x1), x2)) -> c7(A__SEL(a__sel(cons(mark(z0), z1), mark(x1)), mark(x2)), MARK(sel(cons(z0, z1), x1)))
   MARK(sel(sel(s(z0), x1), x2)) -> c7(A__SEL(a__sel(s(mark(z0)), mark(x1)), mark(x2)), MARK(sel(s(z0), x1)))
   MARK(sel(sel(0, x1), x2)) -> c7(A__SEL(a__sel(0, mark(x1)), mark(x2)), MARK(sel(0, x1)))
   MARK(sel(sel(x0, x1), s(z0))) -> c7(MARK(sel(x0, x1)))
   MARK(sel(sel(x0, x1), 0)) -> c7(MARK(sel(x0, x1)))
   MARK(sel(sel(x0, x1), x2)) -> c7(MARK(sel(x0, x1)))
   MARK(sel(s(x0), s(z0))) -> c7(A__SEL(s(mark(x0)), s(mark(z0))), MARK(s(x0)))
   MARK(sel(s(x0), 0)) -> c7(A__SEL(s(mark(x0)), 0), MARK(s(x0)))
   MARK(sel(s(from(z0)), x1)) -> c7(A__SEL(s(a__from(mark(z0))), mark(x1)), MARK(s(from(z0))))
   MARK(sel(s(sel(z0, z1)), x1)) -> c7(A__SEL(s(a__sel(mark(z0), mark(z1))), mark(x1)), MARK(s(sel(z0, z1))))
   MARK(sel(s(cons(z0, z1)), x1)) -> c7(A__SEL(s(cons(mark(z0), z1)), mark(x1)), MARK(s(cons(z0, z1))))
   MARK(sel(s(s(z0)), x1)) -> c7(A__SEL(s(s(mark(z0))), mark(x1)), MARK(s(s(z0))))
   MARK(sel(s(0), x1)) -> c7(A__SEL(s(0), mark(x1)), MARK(s(0)))
   MARK(sel(s(x0), x1)) -> c7(MARK(s(x0)))
K tuples:none
Defined Rule Symbols:   a__from_1, a__sel_2, mark_1

Defined Pair Symbols:   A__FROM_1, A__SEL_2, MARK_1

Compound Symbols:   c_1, c2_1, c6_2, c9_1, c10_1, c3_1, c4_1, c7_1, c8_2, c8_1, c3_2, c4_2, c7_2


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

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

(164)
Obligation:
Complexity Dependency Tuples Problem

Rules:
   a__from(z0) -> cons(mark(z0), from(s(z0)))
   a__from(z0) -> from(z0)
   a__sel(0, cons(z0, z1)) -> mark(z0)
   a__sel(s(z0), cons(z1, z2)) -> a__sel(mark(z0), mark(z2))
   a__sel(z0, z1) -> sel(z0, z1)
   mark(from(z0)) -> a__from(mark(z0))
   mark(sel(z0, z1)) -> a__sel(mark(z0), mark(z1))
   mark(cons(z0, z1)) -> cons(mark(z0), z1)
   mark(s(z0)) -> s(mark(z0))
   mark(0) -> 0
Tuples:
   A__FROM(z0) -> c(MARK(z0))
   A__SEL(0, cons(z0, z1)) -> c2(MARK(z0))
   MARK(from(z0)) -> c6(A__FROM(mark(z0)), MARK(z0))
   MARK(cons(z0, z1)) -> c9(MARK(z0))
   MARK(s(z0)) -> c10(MARK(z0))
   A__SEL(s(x0), cons(x1, s(z0))) -> c3(MARK(x0))
   A__SEL(s(x0), cons(x1, 0)) -> c3(MARK(x0))
   A__SEL(s(cons(z0, z1)), cons(x1, x2)) -> c3(MARK(cons(z0, z1)))
   A__SEL(s(x0), cons(x1, s(z0))) -> c4(MARK(s(z0)))
   A__SEL(s(cons(z0, z1)), cons(x1, x2)) -> c4(MARK(x2))
   MARK(sel(x0, s(z0))) -> c7(MARK(x0))
   MARK(sel(x0, 0)) -> c7(MARK(x0))
   MARK(sel(cons(z0, z1), x1)) -> c7(MARK(cons(z0, z1)))
   MARK(sel(0, x1)) -> c7(A__SEL(0, mark(x1)))
   MARK(sel(x0, from(z0))) -> c8(A__SEL(mark(x0), a__from(mark(z0))), MARK(from(z0)))
   MARK(sel(x0, sel(z0, z1))) -> c8(A__SEL(mark(x0), a__sel(mark(z0), mark(z1))), MARK(sel(z0, z1)))
   MARK(sel(x0, cons(z0, z1))) -> c8(A__SEL(mark(x0), cons(mark(z0), z1)), MARK(cons(z0, z1)))
   MARK(sel(from(z0), x1)) -> c8(A__SEL(a__from(mark(z0)), mark(x1)), MARK(x1))
   MARK(sel(sel(z0, z1), x1)) -> c8(A__SEL(a__sel(mark(z0), mark(z1)), mark(x1)), MARK(x1))
   MARK(sel(s(z0), x1)) -> c8(A__SEL(s(mark(z0)), mark(x1)), MARK(x1))
   MARK(sel(0, x1)) -> c8(A__SEL(0, mark(x1)), MARK(x1))
   MARK(sel(x0, s(z0))) -> c8(MARK(s(z0)))
   MARK(sel(cons(z0, z1), x1)) -> c8(MARK(x1))
   A__SEL(s(x0), cons(x1, from(x2))) -> c3(A__SEL(mark(x0), cons(mark(mark(x2)), from(s(mark(x2))))), MARK(x0))
   A__SEL(s(x0), cons(x1, from(from(z0)))) -> c3(A__SEL(mark(x0), a__from(a__from(mark(z0)))), MARK(x0))
   A__SEL(s(x0), cons(x1, from(sel(z0, z1)))) -> c3(A__SEL(mark(x0), a__from(a__sel(mark(z0), mark(z1)))), MARK(x0))
   A__SEL(s(x0), cons(x1, from(cons(z0, z1)))) -> c3(A__SEL(mark(x0), a__from(cons(mark(z0), z1))), MARK(x0))
   A__SEL(s(x0), cons(x1, from(s(z0)))) -> c3(A__SEL(mark(x0), a__from(s(mark(z0)))), MARK(x0))
   A__SEL(s(x0), cons(x1, from(0))) -> c3(A__SEL(mark(x0), a__from(0)), MARK(x0))
   A__SEL(s(from(z0)), cons(x1, from(x2))) -> c3(A__SEL(a__from(mark(z0)), a__from(mark(x2))), MARK(from(z0)))
   A__SEL(s(sel(z0, z1)), cons(x1, from(x2))) -> c3(A__SEL(a__sel(mark(z0), mark(z1)), a__from(mark(x2))), MARK(sel(z0, z1)))
   A__SEL(s(s(z0)), cons(x1, from(x2))) -> c3(A__SEL(s(mark(z0)), a__from(mark(x2))), MARK(s(z0)))
   A__SEL(s(x0), cons(x1, from(x2))) -> c3(MARK(x0))
   A__SEL(s(cons(z0, z1)), cons(x1, from(x2))) -> c3(MARK(cons(z0, z1)))
   A__SEL(s(0), cons(x1, from(x2))) -> c3(A__SEL(0, a__from(mark(x2))))
   A__SEL(s(x0), cons(x1, sel(x2, from(z0)))) -> c3(A__SEL(mark(x0), a__sel(mark(x2), a__from(mark(z0)))), MARK(x0))
   A__SEL(s(x0), cons(x1, sel(x2, sel(z0, z1)))) -> c3(A__SEL(mark(x0), a__sel(mark(x2), a__sel(mark(z0), mark(z1)))), MARK(x0))
   A__SEL(s(x0), cons(x1, sel(x2, cons(z0, z1)))) -> c3(A__SEL(mark(x0), a__sel(mark(x2), cons(mark(z0), z1))), MARK(x0))
   A__SEL(s(x0), cons(x1, sel(x2, s(z0)))) -> c3(A__SEL(mark(x0), a__sel(mark(x2), s(mark(z0)))), MARK(x0))
   A__SEL(s(x0), cons(x1, sel(x2, 0))) -> c3(A__SEL(mark(x0), a__sel(mark(x2), 0)), MARK(x0))
   A__SEL(s(x0), cons(x1, sel(from(z0), x3))) -> c3(A__SEL(mark(x0), a__sel(a__from(mark(z0)), mark(x3))), MARK(x0))
   A__SEL(s(x0), cons(x1, sel(sel(z0, z1), x3))) -> c3(A__SEL(mark(x0), a__sel(a__sel(mark(z0), mark(z1)), mark(x3))), MARK(x0))
   A__SEL(s(x0), cons(x1, sel(cons(z0, z1), x3))) -> c3(A__SEL(mark(x0), a__sel(cons(mark(z0), z1), mark(x3))), MARK(x0))
   A__SEL(s(x0), cons(x1, sel(s(z0), x3))) -> c3(A__SEL(mark(x0), a__sel(s(mark(z0)), mark(x3))), MARK(x0))
   A__SEL(s(x0), cons(x1, sel(0, x3))) -> c3(A__SEL(mark(x0), a__sel(0, mark(x3))), MARK(x0))
   A__SEL(s(from(z0)), cons(x1, sel(x2, x3))) -> c3(A__SEL(a__from(mark(z0)), a__sel(mark(x2), mark(x3))), MARK(from(z0)))
   A__SEL(s(sel(z0, z1)), cons(x1, sel(x2, x3))) -> c3(A__SEL(a__sel(mark(z0), mark(z1)), a__sel(mark(x2), mark(x3))), MARK(sel(z0, z1)))
   A__SEL(s(s(z0)), cons(x1, sel(x2, x3))) -> c3(A__SEL(s(mark(z0)), a__sel(mark(x2), mark(x3))), MARK(s(z0)))
   A__SEL(s(x0), cons(x1, sel(x2, x3))) -> c3(MARK(x0))
   A__SEL(s(cons(z0, z1)), cons(x1, sel(x2, x3))) -> c3(MARK(cons(z0, z1)))
   A__SEL(s(0), cons(x1, sel(x2, x3))) -> c3(A__SEL(0, a__sel(mark(x2), mark(x3))))
   A__SEL(s(x0), cons(x1, cons(from(z0), x3))) -> c3(A__SEL(mark(x0), cons(a__from(mark(z0)), x3)), MARK(x0))
   A__SEL(s(x0), cons(x1, cons(sel(z0, z1), x3))) -> c3(A__SEL(mark(x0), cons(a__sel(mark(z0), mark(z1)), x3)), MARK(x0))
   A__SEL(s(x0), cons(x1, cons(cons(z0, z1), x3))) -> c3(A__SEL(mark(x0), cons(cons(mark(z0), z1), x3)), MARK(x0))
   A__SEL(s(x0), cons(x1, cons(s(z0), x3))) -> c3(A__SEL(mark(x0), cons(s(mark(z0)), x3)), MARK(x0))
   A__SEL(s(x0), cons(x1, cons(0, x3))) -> c3(A__SEL(mark(x0), cons(0, x3)), MARK(x0))
   A__SEL(s(from(z0)), cons(x1, cons(x2, x3))) -> c3(A__SEL(a__from(mark(z0)), cons(mark(x2), x3)), MARK(from(z0)))
   A__SEL(s(sel(z0, z1)), cons(x1, cons(x2, x3))) -> c3(A__SEL(a__sel(mark(z0), mark(z1)), cons(mark(x2), x3)), MARK(sel(z0, z1)))
   A__SEL(s(s(z0)), cons(x1, cons(x2, x3))) -> c3(A__SEL(s(mark(z0)), cons(mark(x2), x3)), MARK(s(z0)))
   A__SEL(s(cons(z0, z1)), cons(x1, cons(x2, x3))) -> c3(MARK(cons(z0, z1)))
   A__SEL(s(0), cons(x1, cons(x2, x3))) -> c3(A__SEL(0, cons(mark(x2), x3)))
   A__SEL(s(from(from(z0))), cons(x1, x2)) -> c3(A__SEL(a__from(a__from(mark(z0))), mark(x2)), MARK(from(from(z0))))
   A__SEL(s(from(sel(z0, z1))), cons(x1, x2)) -> c3(A__SEL(a__from(a__sel(mark(z0), mark(z1))), mark(x2)), MARK(from(sel(z0, z1))))
   A__SEL(s(from(cons(z0, z1))), cons(x1, x2)) -> c3(A__SEL(a__from(cons(mark(z0), z1)), mark(x2)), MARK(from(cons(z0, z1))))
   A__SEL(s(from(s(z0))), cons(x1, x2)) -> c3(A__SEL(a__from(s(mark(z0))), mark(x2)), MARK(from(s(z0))))
   A__SEL(s(from(0)), cons(x1, x2)) -> c3(A__SEL(a__from(0), mark(x2)), MARK(from(0)))
   A__SEL(s(from(x0)), cons(x1, x2)) -> c3(MARK(from(x0)))
   A__SEL(s(from(x0)), cons(x1, s(z0))) -> c3(MARK(from(x0)))
   A__SEL(s(from(x0)), cons(x1, 0)) -> c3(MARK(from(x0)))
   A__SEL(s(sel(x0, from(z0))), cons(x2, x3)) -> c3(A__SEL(a__sel(mark(x0), a__from(mark(z0))), mark(x3)), MARK(sel(x0, from(z0))))
   A__SEL(s(sel(x0, sel(z0, z1))), cons(x2, x3)) -> c3(A__SEL(a__sel(mark(x0), a__sel(mark(z0), mark(z1))), mark(x3)), MARK(sel(x0, sel(z0, z1))))
   A__SEL(s(sel(x0, cons(z0, z1))), cons(x2, x3)) -> c3(A__SEL(a__sel(mark(x0), cons(mark(z0), z1)), mark(x3)), MARK(sel(x0, cons(z0, z1))))
   A__SEL(s(sel(x0, s(z0))), cons(x2, x3)) -> c3(A__SEL(a__sel(mark(x0), s(mark(z0))), mark(x3)), MARK(sel(x0, s(z0))))
   A__SEL(s(sel(x0, 0)), cons(x2, x3)) -> c3(A__SEL(a__sel(mark(x0), 0), mark(x3)), MARK(sel(x0, 0)))
   A__SEL(s(sel(from(z0), x1)), cons(x2, x3)) -> c3(A__SEL(a__sel(a__from(mark(z0)), mark(x1)), mark(x3)), MARK(sel(from(z0), x1)))
   A__SEL(s(sel(sel(z0, z1), x1)), cons(x2, x3)) -> c3(A__SEL(a__sel(a__sel(mark(z0), mark(z1)), mark(x1)), mark(x3)), MARK(sel(sel(z0, z1), x1)))
   A__SEL(s(sel(cons(z0, z1), x1)), cons(x2, x3)) -> c3(A__SEL(a__sel(cons(mark(z0), z1), mark(x1)), mark(x3)), MARK(sel(cons(z0, z1), x1)))
   A__SEL(s(sel(s(z0), x1)), cons(x2, x3)) -> c3(A__SEL(a__sel(s(mark(z0)), mark(x1)), mark(x3)), MARK(sel(s(z0), x1)))
   A__SEL(s(sel(0, x1)), cons(x2, x3)) -> c3(A__SEL(a__sel(0, mark(x1)), mark(x3)), MARK(sel(0, x1)))
   A__SEL(s(sel(x0, x1)), cons(x2, s(z0))) -> c3(MARK(sel(x0, x1)))
   A__SEL(s(sel(x0, x1)), cons(x2, 0)) -> c3(MARK(sel(x0, x1)))
   A__SEL(s(sel(x0, x1)), cons(x2, x3)) -> c3(MARK(sel(x0, x1)))
   A__SEL(s(s(from(z0))), cons(x1, x2)) -> c3(A__SEL(s(a__from(mark(z0))), mark(x2)), MARK(s(from(z0))))
   A__SEL(s(s(sel(z0, z1))), cons(x1, x2)) -> c3(A__SEL(s(a__sel(mark(z0), mark(z1))), mark(x2)), MARK(s(sel(z0, z1))))
   A__SEL(s(s(cons(z0, z1))), cons(x1, x2)) -> c3(A__SEL(s(cons(mark(z0), z1)), mark(x2)), MARK(s(cons(z0, z1))))
   A__SEL(s(s(s(z0))), cons(x1, x2)) -> c3(A__SEL(s(s(mark(z0))), mark(x2)), MARK(s(s(z0))))
   A__SEL(s(s(0)), cons(x1, x2)) -> c3(A__SEL(s(0), mark(x2)), MARK(s(0)))
   A__SEL(s(s(x0)), cons(x1, x2)) -> c3(MARK(s(x0)))
   A__SEL(s(s(x0)), cons(x1, s(z0))) -> c3(MARK(s(x0)))
   A__SEL(s(s(x0)), cons(x1, 0)) -> c3(MARK(s(x0)))
   A__SEL(s(x0), cons(x1, from(x2))) -> c4(A__SEL(mark(x0), cons(mark(mark(x2)), from(s(mark(x2))))), MARK(from(x2)))
   A__SEL(s(x0), cons(x1, from(from(z0)))) -> c4(A__SEL(mark(x0), a__from(a__from(mark(z0)))), MARK(from(from(z0))))
   A__SEL(s(x0), cons(x1, from(sel(z0, z1)))) -> c4(A__SEL(mark(x0), a__from(a__sel(mark(z0), mark(z1)))), MARK(from(sel(z0, z1))))
   A__SEL(s(x0), cons(x1, from(cons(z0, z1)))) -> c4(A__SEL(mark(x0), a__from(cons(mark(z0), z1))), MARK(from(cons(z0, z1))))
   A__SEL(s(x0), cons(x1, from(s(z0)))) -> c4(A__SEL(mark(x0), a__from(s(mark(z0)))), MARK(from(s(z0))))
   A__SEL(s(x0), cons(x1, from(0))) -> c4(A__SEL(mark(x0), a__from(0)), MARK(from(0)))
   A__SEL(s(from(z0)), cons(x1, from(x2))) -> c4(A__SEL(a__from(mark(z0)), a__from(mark(x2))), MARK(from(x2)))
   A__SEL(s(sel(z0, z1)), cons(x1, from(x2))) -> c4(A__SEL(a__sel(mark(z0), mark(z1)), a__from(mark(x2))), MARK(from(x2)))
   A__SEL(s(s(z0)), cons(x1, from(x2))) -> c4(A__SEL(s(mark(z0)), a__from(mark(x2))), MARK(from(x2)))
   A__SEL(s(0), cons(x1, from(x2))) -> c4(A__SEL(0, a__from(mark(x2))), MARK(from(x2)))
   A__SEL(s(x0), cons(x1, from(x2))) -> c4(MARK(from(x2)))
   A__SEL(s(cons(z0, z1)), cons(x1, from(x2))) -> c4(MARK(from(x2)))
   A__SEL(s(x0), cons(x1, sel(x2, from(z0)))) -> c4(A__SEL(mark(x0), a__sel(mark(x2), a__from(mark(z0)))), MARK(sel(x2, from(z0))))
   A__SEL(s(x0), cons(x1, sel(x2, sel(z0, z1)))) -> c4(A__SEL(mark(x0), a__sel(mark(x2), a__sel(mark(z0), mark(z1)))), MARK(sel(x2, sel(z0, z1))))
   A__SEL(s(x0), cons(x1, sel(x2, cons(z0, z1)))) -> c4(A__SEL(mark(x0), a__sel(mark(x2), cons(mark(z0), z1))), MARK(sel(x2, cons(z0, z1))))
   A__SEL(s(x0), cons(x1, sel(x2, s(z0)))) -> c4(A__SEL(mark(x0), a__sel(mark(x2), s(mark(z0)))), MARK(sel(x2, s(z0))))
   A__SEL(s(x0), cons(x1, sel(x2, 0))) -> c4(A__SEL(mark(x0), a__sel(mark(x2), 0)), MARK(sel(x2, 0)))
   A__SEL(s(x0), cons(x1, sel(from(z0), x3))) -> c4(A__SEL(mark(x0), a__sel(a__from(mark(z0)), mark(x3))), MARK(sel(from(z0), x3)))
   A__SEL(s(x0), cons(x1, sel(sel(z0, z1), x3))) -> c4(A__SEL(mark(x0), a__sel(a__sel(mark(z0), mark(z1)), mark(x3))), MARK(sel(sel(z0, z1), x3)))
   A__SEL(s(x0), cons(x1, sel(cons(z0, z1), x3))) -> c4(A__SEL(mark(x0), a__sel(cons(mark(z0), z1), mark(x3))), MARK(sel(cons(z0, z1), x3)))
   A__SEL(s(x0), cons(x1, sel(s(z0), x3))) -> c4(A__SEL(mark(x0), a__sel(s(mark(z0)), mark(x3))), MARK(sel(s(z0), x3)))
   A__SEL(s(x0), cons(x1, sel(0, x3))) -> c4(A__SEL(mark(x0), a__sel(0, mark(x3))), MARK(sel(0, x3)))
   A__SEL(s(from(z0)), cons(x1, sel(x2, x3))) -> c4(A__SEL(a__from(mark(z0)), a__sel(mark(x2), mark(x3))), MARK(sel(x2, x3)))
   A__SEL(s(sel(z0, z1)), cons(x1, sel(x2, x3))) -> c4(A__SEL(a__sel(mark(z0), mark(z1)), a__sel(mark(x2), mark(x3))), MARK(sel(x2, x3)))
   A__SEL(s(s(z0)), cons(x1, sel(x2, x3))) -> c4(A__SEL(s(mark(z0)), a__sel(mark(x2), mark(x3))), MARK(sel(x2, x3)))
   A__SEL(s(0), cons(x1, sel(x2, x3))) -> c4(A__SEL(0, a__sel(mark(x2), mark(x3))), MARK(sel(x2, x3)))
   A__SEL(s(x0), cons(x1, sel(x2, x3))) -> c4(MARK(sel(x2, x3)))
   A__SEL(s(cons(z0, z1)), cons(x1, sel(x2, x3))) -> c4(MARK(sel(x2, x3)))
   A__SEL(s(x0), cons(x1, cons(from(z0), x3))) -> c4(A__SEL(mark(x0), cons(a__from(mark(z0)), x3)), MARK(cons(from(z0), x3)))
   A__SEL(s(x0), cons(x1, cons(sel(z0, z1), x3))) -> c4(A__SEL(mark(x0), cons(a__sel(mark(z0), mark(z1)), x3)), MARK(cons(sel(z0, z1), x3)))
   A__SEL(s(x0), cons(x1, cons(cons(z0, z1), x3))) -> c4(A__SEL(mark(x0), cons(cons(mark(z0), z1), x3)), MARK(cons(cons(z0, z1), x3)))
   A__SEL(s(x0), cons(x1, cons(s(z0), x3))) -> c4(A__SEL(mark(x0), cons(s(mark(z0)), x3)), MARK(cons(s(z0), x3)))
   A__SEL(s(x0), cons(x1, cons(0, x3))) -> c4(A__SEL(mark(x0), cons(0, x3)), MARK(cons(0, x3)))
   A__SEL(s(from(z0)), cons(x1, cons(x2, x3))) -> c4(A__SEL(a__from(mark(z0)), cons(mark(x2), x3)), MARK(cons(x2, x3)))
   A__SEL(s(sel(z0, z1)), cons(x1, cons(x2, x3))) -> c4(A__SEL(a__sel(mark(z0), mark(z1)), cons(mark(x2), x3)), MARK(cons(x2, x3)))
   A__SEL(s(s(z0)), cons(x1, cons(x2, x3))) -> c4(A__SEL(s(mark(z0)), cons(mark(x2), x3)), MARK(cons(x2, x3)))
   A__SEL(s(0), cons(x1, cons(x2, x3))) -> c4(A__SEL(0, cons(mark(x2), x3)), MARK(cons(x2, x3)))
   A__SEL(s(x0), cons(x1, cons(x2, x3))) -> c4(MARK(cons(x2, x3)))
   A__SEL(s(cons(z0, z1)), cons(x1, cons(x2, x3))) -> c4(MARK(cons(x2, x3)))
   A__SEL(s(from(from(z0))), cons(x1, x2)) -> c4(A__SEL(a__from(a__from(mark(z0))), mark(x2)), MARK(x2))
   A__SEL(s(from(sel(z0, z1))), cons(x1, x2)) -> c4(A__SEL(a__from(a__sel(mark(z0), mark(z1))), mark(x2)), MARK(x2))
   A__SEL(s(from(cons(z0, z1))), cons(x1, x2)) -> c4(A__SEL(a__from(cons(mark(z0), z1)), mark(x2)), MARK(x2))
   A__SEL(s(from(s(z0))), cons(x1, x2)) -> c4(A__SEL(a__from(s(mark(z0))), mark(x2)), MARK(x2))
   A__SEL(s(from(0)), cons(x1, x2)) -> c4(A__SEL(a__from(0), mark(x2)), MARK(x2))
   A__SEL(s(from(x0)), cons(x1, s(z0))) -> c4(MARK(s(z0)))
   A__SEL(s(from(x0)), cons(x1, x2)) -> c4(MARK(x2))
   A__SEL(s(sel(x0, from(z0))), cons(x2, x3)) -> c4(A__SEL(a__sel(mark(x0), a__from(mark(z0))), mark(x3)), MARK(x3))
   A__SEL(s(sel(x0, sel(z0, z1))), cons(x2, x3)) -> c4(A__SEL(a__sel(mark(x0), a__sel(mark(z0), mark(z1))), mark(x3)), MARK(x3))
   A__SEL(s(sel(x0, cons(z0, z1))), cons(x2, x3)) -> c4(A__SEL(a__sel(mark(x0), cons(mark(z0), z1)), mark(x3)), MARK(x3))
   A__SEL(s(sel(x0, s(z0))), cons(x2, x3)) -> c4(A__SEL(a__sel(mark(x0), s(mark(z0))), mark(x3)), MARK(x3))
   A__SEL(s(sel(x0, 0)), cons(x2, x3)) -> c4(A__SEL(a__sel(mark(x0), 0), mark(x3)), MARK(x3))
   A__SEL(s(sel(from(z0), x1)), cons(x2, x3)) -> c4(A__SEL(a__sel(a__from(mark(z0)), mark(x1)), mark(x3)), MARK(x3))
   A__SEL(s(sel(sel(z0, z1), x1)), cons(x2, x3)) -> c4(A__SEL(a__sel(a__sel(mark(z0), mark(z1)), mark(x1)), mark(x3)), MARK(x3))
   A__SEL(s(sel(cons(z0, z1), x1)), cons(x2, x3)) -> c4(A__SEL(a__sel(cons(mark(z0), z1), mark(x1)), mark(x3)), MARK(x3))
   A__SEL(s(sel(s(z0), x1)), cons(x2, x3)) -> c4(A__SEL(a__sel(s(mark(z0)), mark(x1)), mark(x3)), MARK(x3))
   A__SEL(s(sel(0, x1)), cons(x2, x3)) -> c4(A__SEL(a__sel(0, mark(x1)), mark(x3)), MARK(x3))
   A__SEL(s(sel(x0, x1)), cons(x2, s(z0))) -> c4(MARK(s(z0)))
   A__SEL(s(sel(x0, x1)), cons(x2, x3)) -> c4(MARK(x3))
   A__SEL(s(s(from(z0))), cons(x1, x2)) -> c4(A__SEL(s(a__from(mark(z0))), mark(x2)), MARK(x2))
   A__SEL(s(s(sel(z0, z1))), cons(x1, x2)) -> c4(A__SEL(s(a__sel(mark(z0), mark(z1))), mark(x2)), MARK(x2))
   A__SEL(s(s(cons(z0, z1))), cons(x1, x2)) -> c4(A__SEL(s(cons(mark(z0), z1)), mark(x2)), MARK(x2))
   A__SEL(s(s(s(z0))), cons(x1, x2)) -> c4(A__SEL(s(s(mark(z0))), mark(x2)), MARK(x2))
   A__SEL(s(s(0)), cons(x1, x2)) -> c4(A__SEL(s(0), mark(x2)), MARK(x2))
   A__SEL(s(s(x0)), cons(x1, s(z0))) -> c4(MARK(s(z0)))
   A__SEL(s(0), cons(x0, s(z0))) -> c4(MARK(s(z0)))
   MARK(sel(x0, from(x1))) -> c7(A__SEL(mark(x0), cons(mark(mark(x1)), from(s(mark(x1))))), MARK(x0))
   MARK(sel(x0, from(from(z0)))) -> c7(A__SEL(mark(x0), a__from(a__from(mark(z0)))), MARK(x0))
   MARK(sel(x0, from(sel(z0, z1)))) -> c7(A__SEL(mark(x0), a__from(a__sel(mark(z0), mark(z1)))), MARK(x0))
   MARK(sel(x0, from(cons(z0, z1)))) -> c7(A__SEL(mark(x0), a__from(cons(mark(z0), z1))), MARK(x0))
   MARK(sel(x0, from(s(z0)))) -> c7(A__SEL(mark(x0), a__from(s(mark(z0)))), MARK(x0))
   MARK(sel(x0, from(0))) -> c7(A__SEL(mark(x0), a__from(0)), MARK(x0))
   MARK(sel(from(z0), from(x1))) -> c7(A__SEL(a__from(mark(z0)), a__from(mark(x1))), MARK(from(z0)))
   MARK(sel(sel(z0, z1), from(x1))) -> c7(A__SEL(a__sel(mark(z0), mark(z1)), a__from(mark(x1))), MARK(sel(z0, z1)))
   MARK(sel(s(z0), from(x1))) -> c7(A__SEL(s(mark(z0)), a__from(mark(x1))), MARK(s(z0)))
   MARK(sel(x0, from(x1))) -> c7(MARK(x0))
   MARK(sel(cons(z0, z1), from(x1))) -> c7(MARK(cons(z0, z1)))
   MARK(sel(0, from(x1))) -> c7(A__SEL(0, a__from(mark(x1))))
   MARK(sel(x0, sel(x1, from(z0)))) -> c7(A__SEL(mark(x0), a__sel(mark(x1), a__from(mark(z0)))), MARK(x0))
   MARK(sel(x0, sel(x1, sel(z0, z1)))) -> c7(A__SEL(mark(x0), a__sel(mark(x1), a__sel(mark(z0), mark(z1)))), MARK(x0))
   MARK(sel(x0, sel(x1, cons(z0, z1)))) -> c7(A__SEL(mark(x0), a__sel(mark(x1), cons(mark(z0), z1))), MARK(x0))
   MARK(sel(x0, sel(x1, s(z0)))) -> c7(A__SEL(mark(x0), a__sel(mark(x1), s(mark(z0)))), MARK(x0))
   MARK(sel(x0, sel(x1, 0))) -> c7(A__SEL(mark(x0), a__sel(mark(x1), 0)), MARK(x0))
   MARK(sel(x0, sel(from(z0), x2))) -> c7(A__SEL(mark(x0), a__sel(a__from(mark(z0)), mark(x2))), MARK(x0))
   MARK(sel(x0, sel(sel(z0, z1), x2))) -> c7(A__SEL(mark(x0), a__sel(a__sel(mark(z0), mark(z1)), mark(x2))), MARK(x0))
   MARK(sel(x0, sel(cons(z0, z1), x2))) -> c7(A__SEL(mark(x0), a__sel(cons(mark(z0), z1), mark(x2))), MARK(x0))
   MARK(sel(x0, sel(s(z0), x2))) -> c7(A__SEL(mark(x0), a__sel(s(mark(z0)), mark(x2))), MARK(x0))
   MARK(sel(x0, sel(0, x2))) -> c7(A__SEL(mark(x0), a__sel(0, mark(x2))), MARK(x0))
   MARK(sel(from(z0), sel(x1, x2))) -> c7(A__SEL(a__from(mark(z0)), a__sel(mark(x1), mark(x2))), MARK(from(z0)))
   MARK(sel(sel(z0, z1), sel(x1, x2))) -> c7(A__SEL(a__sel(mark(z0), mark(z1)), a__sel(mark(x1), mark(x2))), MARK(sel(z0, z1)))
   MARK(sel(s(z0), sel(x1, x2))) -> c7(A__SEL(s(mark(z0)), a__sel(mark(x1), mark(x2))), MARK(s(z0)))
   MARK(sel(x0, sel(x1, x2))) -> c7(MARK(x0))
   MARK(sel(cons(z0, z1), sel(x1, x2))) -> c7(MARK(cons(z0, z1)))
   MARK(sel(0, sel(x1, x2))) -> c7(A__SEL(0, a__sel(mark(x1), mark(x2))))
   MARK(sel(x0, cons(from(z0), x2))) -> c7(A__SEL(mark(x0), cons(a__from(mark(z0)), x2)), MARK(x0))
   MARK(sel(x0, cons(sel(z0, z1), x2))) -> c7(A__SEL(mark(x0), cons(a__sel(mark(z0), mark(z1)), x2)), MARK(x0))
   MARK(sel(x0, cons(cons(z0, z1), x2))) -> c7(A__SEL(mark(x0), cons(cons(mark(z0), z1), x2)), MARK(x0))
   MARK(sel(x0, cons(s(z0), x2))) -> c7(A__SEL(mark(x0), cons(s(mark(z0)), x2)), MARK(x0))
   MARK(sel(x0, cons(0, x2))) -> c7(A__SEL(mark(x0), cons(0, x2)), MARK(x0))
   MARK(sel(from(z0), cons(x1, x2))) -> c7(A__SEL(a__from(mark(z0)), cons(mark(x1), x2)), MARK(from(z0)))
   MARK(sel(sel(z0, z1), cons(x1, x2))) -> c7(A__SEL(a__sel(mark(z0), mark(z1)), cons(mark(x1), x2)), MARK(sel(z0, z1)))
   MARK(sel(s(z0), cons(x1, x2))) -> c7(A__SEL(s(mark(z0)), cons(mark(x1), x2)), MARK(s(z0)))
   MARK(sel(cons(z0, z1), cons(x1, x2))) -> c7(MARK(cons(z0, z1)))
   MARK(sel(0, cons(x1, x2))) -> c7(A__SEL(0, cons(mark(x1), x2)))
   MARK(sel(from(from(z0)), x1)) -> c7(A__SEL(a__from(a__from(mark(z0))), mark(x1)), MARK(from(from(z0))))
   MARK(sel(from(sel(z0, z1)), x1)) -> c7(A__SEL(a__from(a__sel(mark(z0), mark(z1))), mark(x1)), MARK(from(sel(z0, z1))))
   MARK(sel(from(cons(z0, z1)), x1)) -> c7(A__SEL(a__from(cons(mark(z0), z1)), mark(x1)), MARK(from(cons(z0, z1))))
   MARK(sel(from(s(z0)), x1)) -> c7(A__SEL(a__from(s(mark(z0))), mark(x1)), MARK(from(s(z0))))
   MARK(sel(from(0), x1)) -> c7(A__SEL(a__from(0), mark(x1)), MARK(from(0)))
   MARK(sel(from(x0), x1)) -> c7(MARK(from(x0)))
   MARK(sel(from(x0), s(z0))) -> c7(MARK(from(x0)))
   MARK(sel(from(x0), 0)) -> c7(MARK(from(x0)))
   MARK(sel(sel(x0, from(z0)), x2)) -> c7(A__SEL(a__sel(mark(x0), a__from(mark(z0))), mark(x2)), MARK(sel(x0, from(z0))))
   MARK(sel(sel(x0, sel(z0, z1)), x2)) -> c7(A__SEL(a__sel(mark(x0), a__sel(mark(z0), mark(z1))), mark(x2)), MARK(sel(x0, sel(z0, z1))))
   MARK(sel(sel(x0, cons(z0, z1)), x2)) -> c7(A__SEL(a__sel(mark(x0), cons(mark(z0), z1)), mark(x2)), MARK(sel(x0, cons(z0, z1))))
   MARK(sel(sel(x0, s(z0)), x2)) -> c7(A__SEL(a__sel(mark(x0), s(mark(z0))), mark(x2)), MARK(sel(x0, s(z0))))
   MARK(sel(sel(x0, 0), x2)) -> c7(A__SEL(a__sel(mark(x0), 0), mark(x2)), MARK(sel(x0, 0)))
   MARK(sel(sel(from(z0), x1), x2)) -> c7(A__SEL(a__sel(a__from(mark(z0)), mark(x1)), mark(x2)), MARK(sel(from(z0), x1)))
   MARK(sel(sel(sel(z0, z1), x1), x2)) -> c7(A__SEL(a__sel(a__sel(mark(z0), mark(z1)), mark(x1)), mark(x2)), MARK(sel(sel(z0, z1), x1)))
   MARK(sel(sel(cons(z0, z1), x1), x2)) -> c7(A__SEL(a__sel(cons(mark(z0), z1), mark(x1)), mark(x2)), MARK(sel(cons(z0, z1), x1)))
   MARK(sel(sel(s(z0), x1), x2)) -> c7(A__SEL(a__sel(s(mark(z0)), mark(x1)), mark(x2)), MARK(sel(s(z0), x1)))
   MARK(sel(sel(0, x1), x2)) -> c7(A__SEL(a__sel(0, mark(x1)), mark(x2)), MARK(sel(0, x1)))
   MARK(sel(sel(x0, x1), s(z0))) -> c7(MARK(sel(x0, x1)))
   MARK(sel(sel(x0, x1), 0)) -> c7(MARK(sel(x0, x1)))
   MARK(sel(sel(x0, x1), x2)) -> c7(MARK(sel(x0, x1)))
   MARK(sel(s(from(z0)), x1)) -> c7(A__SEL(s(a__from(mark(z0))), mark(x1)), MARK(s(from(z0))))
   MARK(sel(s(sel(z0, z1)), x1)) -> c7(A__SEL(s(a__sel(mark(z0), mark(z1))), mark(x1)), MARK(s(sel(z0, z1))))
   MARK(sel(s(cons(z0, z1)), x1)) -> c7(A__SEL(s(cons(mark(z0), z1)), mark(x1)), MARK(s(cons(z0, z1))))
   MARK(sel(s(s(z0)), x1)) -> c7(A__SEL(s(s(mark(z0))), mark(x1)), MARK(s(s(z0))))
   MARK(sel(s(0), x1)) -> c7(A__SEL(s(0), mark(x1)), MARK(s(0)))
   MARK(sel(s(x0), x1)) -> c7(MARK(s(x0)))
   MARK(sel(s(x0), s(z0))) -> c7(MARK(s(x0)))
   MARK(sel(s(x0), 0)) -> c7(MARK(s(x0)))
S tuples:
   A__FROM(z0) -> c(MARK(z0))
   A__SEL(0, cons(z0, z1)) -> c2(MARK(z0))
   MARK(from(z0)) -> c6(A__FROM(mark(z0)), MARK(z0))
   MARK(cons(z0, z1)) -> c9(MARK(z0))
   MARK(s(z0)) -> c10(MARK(z0))
   A__SEL(s(x0), cons(x1, s(z0))) -> c3(MARK(x0))
   A__SEL(s(x0), cons(x1, 0)) -> c3(MARK(x0))
   A__SEL(s(cons(z0, z1)), cons(x1, x2)) -> c3(MARK(cons(z0, z1)))
   A__SEL(s(x0), cons(x1, s(z0))) -> c4(MARK(s(z0)))
   A__SEL(s(cons(z0, z1)), cons(x1, x2)) -> c4(MARK(x2))
   MARK(sel(x0, s(z0))) -> c7(MARK(x0))
   MARK(sel(x0, 0)) -> c7(MARK(x0))
   MARK(sel(cons(z0, z1), x1)) -> c7(MARK(cons(z0, z1)))
   MARK(sel(0, x1)) -> c7(A__SEL(0, mark(x1)))
   MARK(sel(x0, from(z0))) -> c8(A__SEL(mark(x0), a__from(mark(z0))), MARK(from(z0)))
   MARK(sel(x0, sel(z0, z1))) -> c8(A__SEL(mark(x0), a__sel(mark(z0), mark(z1))), MARK(sel(z0, z1)))
   MARK(sel(x0, cons(z0, z1))) -> c8(A__SEL(mark(x0), cons(mark(z0), z1)), MARK(cons(z0, z1)))
   MARK(sel(from(z0), x1)) -> c8(A__SEL(a__from(mark(z0)), mark(x1)), MARK(x1))
   MARK(sel(sel(z0, z1), x1)) -> c8(A__SEL(a__sel(mark(z0), mark(z1)), mark(x1)), MARK(x1))
   MARK(sel(s(z0), x1)) -> c8(A__SEL(s(mark(z0)), mark(x1)), MARK(x1))
   MARK(sel(0, x1)) -> c8(A__SEL(0, mark(x1)), MARK(x1))
   MARK(sel(x0, s(z0))) -> c8(MARK(s(z0)))
   MARK(sel(cons(z0, z1), x1)) -> c8(MARK(x1))
   A__SEL(s(x0), cons(x1, from(x2))) -> c3(A__SEL(mark(x0), cons(mark(mark(x2)), from(s(mark(x2))))), MARK(x0))
   A__SEL(s(x0), cons(x1, from(from(z0)))) -> c3(A__SEL(mark(x0), a__from(a__from(mark(z0)))), MARK(x0))
   A__SEL(s(x0), cons(x1, from(sel(z0, z1)))) -> c3(A__SEL(mark(x0), a__from(a__sel(mark(z0), mark(z1)))), MARK(x0))
   A__SEL(s(x0), cons(x1, from(cons(z0, z1)))) -> c3(A__SEL(mark(x0), a__from(cons(mark(z0), z1))), MARK(x0))
   A__SEL(s(x0), cons(x1, from(s(z0)))) -> c3(A__SEL(mark(x0), a__from(s(mark(z0)))), MARK(x0))
   A__SEL(s(x0), cons(x1, from(0))) -> c3(A__SEL(mark(x0), a__from(0)), MARK(x0))
   A__SEL(s(from(z0)), cons(x1, from(x2))) -> c3(A__SEL(a__from(mark(z0)), a__from(mark(x2))), MARK(from(z0)))
   A__SEL(s(sel(z0, z1)), cons(x1, from(x2))) -> c3(A__SEL(a__sel(mark(z0), mark(z1)), a__from(mark(x2))), MARK(sel(z0, z1)))
   A__SEL(s(s(z0)), cons(x1, from(x2))) -> c3(A__SEL(s(mark(z0)), a__from(mark(x2))), MARK(s(z0)))
   A__SEL(s(x0), cons(x1, from(x2))) -> c3(MARK(x0))
   A__SEL(s(cons(z0, z1)), cons(x1, from(x2))) -> c3(MARK(cons(z0, z1)))
   A__SEL(s(0), cons(x1, from(x2))) -> c3(A__SEL(0, a__from(mark(x2))))
   A__SEL(s(x0), cons(x1, sel(x2, from(z0)))) -> c3(A__SEL(mark(x0), a__sel(mark(x2), a__from(mark(z0)))), MARK(x0))
   A__SEL(s(x0), cons(x1, sel(x2, sel(z0, z1)))) -> c3(A__SEL(mark(x0), a__sel(mark(x2), a__sel(mark(z0), mark(z1)))), MARK(x0))
   A__SEL(s(x0), cons(x1, sel(x2, cons(z0, z1)))) -> c3(A__SEL(mark(x0), a__sel(mark(x2), cons(mark(z0), z1))), MARK(x0))
   A__SEL(s(x0), cons(x1, sel(x2, s(z0)))) -> c3(A__SEL(mark(x0), a__sel(mark(x2), s(mark(z0)))), MARK(x0))
   A__SEL(s(x0), cons(x1, sel(x2, 0))) -> c3(A__SEL(mark(x0), a__sel(mark(x2), 0)), MARK(x0))
   A__SEL(s(x0), cons(x1, sel(from(z0), x3))) -> c3(A__SEL(mark(x0), a__sel(a__from(mark(z0)), mark(x3))), MARK(x0))
   A__SEL(s(x0), cons(x1, sel(sel(z0, z1), x3))) -> c3(A__SEL(mark(x0), a__sel(a__sel(mark(z0), mark(z1)), mark(x3))), MARK(x0))
   A__SEL(s(x0), cons(x1, sel(cons(z0, z1), x3))) -> c3(A__SEL(mark(x0), a__sel(cons(mark(z0), z1), mark(x3))), MARK(x0))
   A__SEL(s(x0), cons(x1, sel(s(z0), x3))) -> c3(A__SEL(mark(x0), a__sel(s(mark(z0)), mark(x3))), MARK(x0))
   A__SEL(s(x0), cons(x1, sel(0, x3))) -> c3(A__SEL(mark(x0), a__sel(0, mark(x3))), MARK(x0))
   A__SEL(s(from(z0)), cons(x1, sel(x2, x3))) -> c3(A__SEL(a__from(mark(z0)), a__sel(mark(x2), mark(x3))), MARK(from(z0)))
   A__SEL(s(sel(z0, z1)), cons(x1, sel(x2, x3))) -> c3(A__SEL(a__sel(mark(z0), mark(z1)), a__sel(mark(x2), mark(x3))), MARK(sel(z0, z1)))
   A__SEL(s(s(z0)), cons(x1, sel(x2, x3))) -> c3(A__SEL(s(mark(z0)), a__sel(mark(x2), mark(x3))), MARK(s(z0)))
   A__SEL(s(x0), cons(x1, sel(x2, x3))) -> c3(MARK(x0))
   A__SEL(s(cons(z0, z1)), cons(x1, sel(x2, x3))) -> c3(MARK(cons(z0, z1)))
   A__SEL(s(0), cons(x1, sel(x2, x3))) -> c3(A__SEL(0, a__sel(mark(x2), mark(x3))))
   A__SEL(s(x0), cons(x1, cons(from(z0), x3))) -> c3(A__SEL(mark(x0), cons(a__from(mark(z0)), x3)), MARK(x0))
   A__SEL(s(x0), cons(x1, cons(sel(z0, z1), x3))) -> c3(A__SEL(mark(x0), cons(a__sel(mark(z0), mark(z1)), x3)), MARK(x0))
   A__SEL(s(x0), cons(x1, cons(cons(z0, z1), x3))) -> c3(A__SEL(mark(x0), cons(cons(mark(z0), z1), x3)), MARK(x0))
   A__SEL(s(x0), cons(x1, cons(s(z0), x3))) -> c3(A__SEL(mark(x0), cons(s(mark(z0)), x3)), MARK(x0))
   A__SEL(s(x0), cons(x1, cons(0, x3))) -> c3(A__SEL(mark(x0), cons(0, x3)), MARK(x0))
   A__SEL(s(from(z0)), cons(x1, cons(x2, x3))) -> c3(A__SEL(a__from(mark(z0)), cons(mark(x2), x3)), MARK(from(z0)))
   A__SEL(s(sel(z0, z1)), cons(x1, cons(x2, x3))) -> c3(A__SEL(a__sel(mark(z0), mark(z1)), cons(mark(x2), x3)), MARK(sel(z0, z1)))
   A__SEL(s(s(z0)), cons(x1, cons(x2, x3))) -> c3(A__SEL(s(mark(z0)), cons(mark(x2), x3)), MARK(s(z0)))
   A__SEL(s(cons(z0, z1)), cons(x1, cons(x2, x3))) -> c3(MARK(cons(z0, z1)))
   A__SEL(s(0), cons(x1, cons(x2, x3))) -> c3(A__SEL(0, cons(mark(x2), x3)))
   A__SEL(s(from(from(z0))), cons(x1, x2)) -> c3(A__SEL(a__from(a__from(mark(z0))), mark(x2)), MARK(from(from(z0))))
   A__SEL(s(from(sel(z0, z1))), cons(x1, x2)) -> c3(A__SEL(a__from(a__sel(mark(z0), mark(z1))), mark(x2)), MARK(from(sel(z0, z1))))
   A__SEL(s(from(cons(z0, z1))), cons(x1, x2)) -> c3(A__SEL(a__from(cons(mark(z0), z1)), mark(x2)), MARK(from(cons(z0, z1))))
   A__SEL(s(from(s(z0))), cons(x1, x2)) -> c3(A__SEL(a__from(s(mark(z0))), mark(x2)), MARK(from(s(z0))))
   A__SEL(s(from(0)), cons(x1, x2)) -> c3(A__SEL(a__from(0), mark(x2)), MARK(from(0)))
   A__SEL(s(from(x0)), cons(x1, x2)) -> c3(MARK(from(x0)))
   A__SEL(s(from(x0)), cons(x1, s(z0))) -> c3(MARK(from(x0)))
   A__SEL(s(from(x0)), cons(x1, 0)) -> c3(MARK(from(x0)))
   A__SEL(s(sel(x0, from(z0))), cons(x2, x3)) -> c3(A__SEL(a__sel(mark(x0), a__from(mark(z0))), mark(x3)), MARK(sel(x0, from(z0))))
   A__SEL(s(sel(x0, sel(z0, z1))), cons(x2, x3)) -> c3(A__SEL(a__sel(mark(x0), a__sel(mark(z0), mark(z1))), mark(x3)), MARK(sel(x0, sel(z0, z1))))
   A__SEL(s(sel(x0, cons(z0, z1))), cons(x2, x3)) -> c3(A__SEL(a__sel(mark(x0), cons(mark(z0), z1)), mark(x3)), MARK(sel(x0, cons(z0, z1))))
   A__SEL(s(sel(x0, s(z0))), cons(x2, x3)) -> c3(A__SEL(a__sel(mark(x0), s(mark(z0))), mark(x3)), MARK(sel(x0, s(z0))))
   A__SEL(s(sel(x0, 0)), cons(x2, x3)) -> c3(A__SEL(a__sel(mark(x0), 0), mark(x3)), MARK(sel(x0, 0)))
   A__SEL(s(sel(from(z0), x1)), cons(x2, x3)) -> c3(A__SEL(a__sel(a__from(mark(z0)), mark(x1)), mark(x3)), MARK(sel(from(z0), x1)))
   A__SEL(s(sel(sel(z0, z1), x1)), cons(x2, x3)) -> c3(A__SEL(a__sel(a__sel(mark(z0), mark(z1)), mark(x1)), mark(x3)), MARK(sel(sel(z0, z1), x1)))
   A__SEL(s(sel(cons(z0, z1), x1)), cons(x2, x3)) -> c3(A__SEL(a__sel(cons(mark(z0), z1), mark(x1)), mark(x3)), MARK(sel(cons(z0, z1), x1)))
   A__SEL(s(sel(s(z0), x1)), cons(x2, x3)) -> c3(A__SEL(a__sel(s(mark(z0)), mark(x1)), mark(x3)), MARK(sel(s(z0), x1)))
   A__SEL(s(sel(0, x1)), cons(x2, x3)) -> c3(A__SEL(a__sel(0, mark(x1)), mark(x3)), MARK(sel(0, x1)))
   A__SEL(s(sel(x0, x1)), cons(x2, s(z0))) -> c3(MARK(sel(x0, x1)))
   A__SEL(s(sel(x0, x1)), cons(x2, 0)) -> c3(MARK(sel(x0, x1)))
   A__SEL(s(sel(x0, x1)), cons(x2, x3)) -> c3(MARK(sel(x0, x1)))
   A__SEL(s(s(from(z0))), cons(x1, x2)) -> c3(A__SEL(s(a__from(mark(z0))), mark(x2)), MARK(s(from(z0))))
   A__SEL(s(s(sel(z0, z1))), cons(x1, x2)) -> c3(A__SEL(s(a__sel(mark(z0), mark(z1))), mark(x2)), MARK(s(sel(z0, z1))))
   A__SEL(s(s(cons(z0, z1))), cons(x1, x2)) -> c3(A__SEL(s(cons(mark(z0), z1)), mark(x2)), MARK(s(cons(z0, z1))))
   A__SEL(s(s(s(z0))), cons(x1, x2)) -> c3(A__SEL(s(s(mark(z0))), mark(x2)), MARK(s(s(z0))))
   A__SEL(s(s(0)), cons(x1, x2)) -> c3(A__SEL(s(0), mark(x2)), MARK(s(0)))
   A__SEL(s(s(x0)), cons(x1, x2)) -> c3(MARK(s(x0)))
   A__SEL(s(s(x0)), cons(x1, s(z0))) -> c3(MARK(s(x0)))
   A__SEL(s(s(x0)), cons(x1, 0)) -> c3(MARK(s(x0)))
   A__SEL(s(x0), cons(x1, from(x2))) -> c4(A__SEL(mark(x0), cons(mark(mark(x2)), from(s(mark(x2))))), MARK(from(x2)))
   A__SEL(s(x0), cons(x1, from(from(z0)))) -> c4(A__SEL(mark(x0), a__from(a__from(mark(z0)))), MARK(from(from(z0))))
   A__SEL(s(x0), cons(x1, from(sel(z0, z1)))) -> c4(A__SEL(mark(x0), a__from(a__sel(mark(z0), mark(z1)))), MARK(from(sel(z0, z1))))
   A__SEL(s(x0), cons(x1, from(cons(z0, z1)))) -> c4(A__SEL(mark(x0), a__from(cons(mark(z0), z1))), MARK(from(cons(z0, z1))))
   A__SEL(s(x0), cons(x1, from(s(z0)))) -> c4(A__SEL(mark(x0), a__from(s(mark(z0)))), MARK(from(s(z0))))
   A__SEL(s(x0), cons(x1, from(0))) -> c4(A__SEL(mark(x0), a__from(0)), MARK(from(0)))
   A__SEL(s(from(z0)), cons(x1, from(x2))) -> c4(A__SEL(a__from(mark(z0)), a__from(mark(x2))), MARK(from(x2)))
   A__SEL(s(sel(z0, z1)), cons(x1, from(x2))) -> c4(A__SEL(a__sel(mark(z0), mark(z1)), a__from(mark(x2))), MARK(from(x2)))
   A__SEL(s(s(z0)), cons(x1, from(x2))) -> c4(A__SEL(s(mark(z0)), a__from(mark(x2))), MARK(from(x2)))
   A__SEL(s(0), cons(x1, from(x2))) -> c4(A__SEL(0, a__from(mark(x2))), MARK(from(x2)))
   A__SEL(s(x0), cons(x1, from(x2))) -> c4(MARK(from(x2)))
   A__SEL(s(cons(z0, z1)), cons(x1, from(x2))) -> c4(MARK(from(x2)))
   A__SEL(s(x0), cons(x1, sel(x2, from(z0)))) -> c4(A__SEL(mark(x0), a__sel(mark(x2), a__from(mark(z0)))), MARK(sel(x2, from(z0))))
   A__SEL(s(x0), cons(x1, sel(x2, sel(z0, z1)))) -> c4(A__SEL(mark(x0), a__sel(mark(x2), a__sel(mark(z0), mark(z1)))), MARK(sel(x2, sel(z0, z1))))
   A__SEL(s(x0), cons(x1, sel(x2, cons(z0, z1)))) -> c4(A__SEL(mark(x0), a__sel(mark(x2), cons(mark(z0), z1))), MARK(sel(x2, cons(z0, z1))))
   A__SEL(s(x0), cons(x1, sel(x2, s(z0)))) -> c4(A__SEL(mark(x0), a__sel(mark(x2), s(mark(z0)))), MARK(sel(x2, s(z0))))
   A__SEL(s(x0), cons(x1, sel(x2, 0))) -> c4(A__SEL(mark(x0), a__sel(mark(x2), 0)), MARK(sel(x2, 0)))
   A__SEL(s(x0), cons(x1, sel(from(z0), x3))) -> c4(A__SEL(mark(x0), a__sel(a__from(mark(z0)), mark(x3))), MARK(sel(from(z0), x3)))
   A__SEL(s(x0), cons(x1, sel(sel(z0, z1), x3))) -> c4(A__SEL(mark(x0), a__sel(a__sel(mark(z0), mark(z1)), mark(x3))), MARK(sel(sel(z0, z1), x3)))
   A__SEL(s(x0), cons(x1, sel(cons(z0, z1), x3))) -> c4(A__SEL(mark(x0), a__sel(cons(mark(z0), z1), mark(x3))), MARK(sel(cons(z0, z1), x3)))
   A__SEL(s(x0), cons(x1, sel(s(z0), x3))) -> c4(A__SEL(mark(x0), a__sel(s(mark(z0)), mark(x3))), MARK(sel(s(z0), x3)))
   A__SEL(s(x0), cons(x1, sel(0, x3))) -> c4(A__SEL(mark(x0), a__sel(0, mark(x3))), MARK(sel(0, x3)))
   A__SEL(s(from(z0)), cons(x1, sel(x2, x3))) -> c4(A__SEL(a__from(mark(z0)), a__sel(mark(x2), mark(x3))), MARK(sel(x2, x3)))
   A__SEL(s(sel(z0, z1)), cons(x1, sel(x2, x3))) -> c4(A__SEL(a__sel(mark(z0), mark(z1)), a__sel(mark(x2), mark(x3))), MARK(sel(x2, x3)))
   A__SEL(s(s(z0)), cons(x1, sel(x2, x3))) -> c4(A__SEL(s(mark(z0)), a__sel(mark(x2), mark(x3))), MARK(sel(x2, x3)))
   A__SEL(s(0), cons(x1, sel(x2, x3))) -> c4(A__SEL(0, a__sel(mark(x2), mark(x3))), MARK(sel(x2, x3)))
   A__SEL(s(x0), cons(x1, sel(x2, x3))) -> c4(MARK(sel(x2, x3)))
   A__SEL(s(cons(z0, z1)), cons(x1, sel(x2, x3))) -> c4(MARK(sel(x2, x3)))
   A__SEL(s(x0), cons(x1, cons(from(z0), x3))) -> c4(A__SEL(mark(x0), cons(a__from(mark(z0)), x3)), MARK(cons(from(z0), x3)))
   A__SEL(s(x0), cons(x1, cons(sel(z0, z1), x3))) -> c4(A__SEL(mark(x0), cons(a__sel(mark(z0), mark(z1)), x3)), MARK(cons(sel(z0, z1), x3)))
   A__SEL(s(x0), cons(x1, cons(cons(z0, z1), x3))) -> c4(A__SEL(mark(x0), cons(cons(mark(z0), z1), x3)), MARK(cons(cons(z0, z1), x3)))
   A__SEL(s(x0), cons(x1, cons(s(z0), x3))) -> c4(A__SEL(mark(x0), cons(s(mark(z0)), x3)), MARK(cons(s(z0), x3)))
   A__SEL(s(x0), cons(x1, cons(0, x3))) -> c4(A__SEL(mark(x0), cons(0, x3)), MARK(cons(0, x3)))
   A__SEL(s(from(z0)), cons(x1, cons(x2, x3))) -> c4(A__SEL(a__from(mark(z0)), cons(mark(x2), x3)), MARK(cons(x2, x3)))
   A__SEL(s(sel(z0, z1)), cons(x1, cons(x2, x3))) -> c4(A__SEL(a__sel(mark(z0), mark(z1)), cons(mark(x2), x3)), MARK(cons(x2, x3)))
   A__SEL(s(s(z0)), cons(x1, cons(x2, x3))) -> c4(A__SEL(s(mark(z0)), cons(mark(x2), x3)), MARK(cons(x2, x3)))
   A__SEL(s(0), cons(x1, cons(x2, x3))) -> c4(A__SEL(0, cons(mark(x2), x3)), MARK(cons(x2, x3)))
   A__SEL(s(x0), cons(x1, cons(x2, x3))) -> c4(MARK(cons(x2, x3)))
   A__SEL(s(cons(z0, z1)), cons(x1, cons(x2, x3))) -> c4(MARK(cons(x2, x3)))
   A__SEL(s(from(from(z0))), cons(x1, x2)) -> c4(A__SEL(a__from(a__from(mark(z0))), mark(x2)), MARK(x2))
   A__SEL(s(from(sel(z0, z1))), cons(x1, x2)) -> c4(A__SEL(a__from(a__sel(mark(z0), mark(z1))), mark(x2)), MARK(x2))
   A__SEL(s(from(cons(z0, z1))), cons(x1, x2)) -> c4(A__SEL(a__from(cons(mark(z0), z1)), mark(x2)), MARK(x2))
   A__SEL(s(from(s(z0))), cons(x1, x2)) -> c4(A__SEL(a__from(s(mark(z0))), mark(x2)), MARK(x2))
   A__SEL(s(from(0)), cons(x1, x2)) -> c4(A__SEL(a__from(0), mark(x2)), MARK(x2))
   A__SEL(s(from(x0)), cons(x1, s(z0))) -> c4(MARK(s(z0)))
   A__SEL(s(from(x0)), cons(x1, x2)) -> c4(MARK(x2))
   A__SEL(s(sel(x0, from(z0))), cons(x2, x3)) -> c4(A__SEL(a__sel(mark(x0), a__from(mark(z0))), mark(x3)), MARK(x3))
   A__SEL(s(sel(x0, sel(z0, z1))), cons(x2, x3)) -> c4(A__SEL(a__sel(mark(x0), a__sel(mark(z0), mark(z1))), mark(x3)), MARK(x3))
   A__SEL(s(sel(x0, cons(z0, z1))), cons(x2, x3)) -> c4(A__SEL(a__sel(mark(x0), cons(mark(z0), z1)), mark(x3)), MARK(x3))
   A__SEL(s(sel(x0, s(z0))), cons(x2, x3)) -> c4(A__SEL(a__sel(mark(x0), s(mark(z0))), mark(x3)), MARK(x3))
   A__SEL(s(sel(x0, 0)), cons(x2, x3)) -> c4(A__SEL(a__sel(mark(x0), 0), mark(x3)), MARK(x3))
   A__SEL(s(sel(from(z0), x1)), cons(x2, x3)) -> c4(A__SEL(a__sel(a__from(mark(z0)), mark(x1)), mark(x3)), MARK(x3))
   A__SEL(s(sel(sel(z0, z1), x1)), cons(x2, x3)) -> c4(A__SEL(a__sel(a__sel(mark(z0), mark(z1)), mark(x1)), mark(x3)), MARK(x3))
   A__SEL(s(sel(cons(z0, z1), x1)), cons(x2, x3)) -> c4(A__SEL(a__sel(cons(mark(z0), z1), mark(x1)), mark(x3)), MARK(x3))
   A__SEL(s(sel(s(z0), x1)), cons(x2, x3)) -> c4(A__SEL(a__sel(s(mark(z0)), mark(x1)), mark(x3)), MARK(x3))
   A__SEL(s(sel(0, x1)), cons(x2, x3)) -> c4(A__SEL(a__sel(0, mark(x1)), mark(x3)), MARK(x3))
   A__SEL(s(sel(x0, x1)), cons(x2, s(z0))) -> c4(MARK(s(z0)))
   A__SEL(s(sel(x0, x1)), cons(x2, x3)) -> c4(MARK(x3))
   A__SEL(s(s(from(z0))), cons(x1, x2)) -> c4(A__SEL(s(a__from(mark(z0))), mark(x2)), MARK(x2))
   A__SEL(s(s(sel(z0, z1))), cons(x1, x2)) -> c4(A__SEL(s(a__sel(mark(z0), mark(z1))), mark(x2)), MARK(x2))
   A__SEL(s(s(cons(z0, z1))), cons(x1, x2)) -> c4(A__SEL(s(cons(mark(z0), z1)), mark(x2)), MARK(x2))
   A__SEL(s(s(s(z0))), cons(x1, x2)) -> c4(A__SEL(s(s(mark(z0))), mark(x2)), MARK(x2))
   A__SEL(s(s(0)), cons(x1, x2)) -> c4(A__SEL(s(0), mark(x2)), MARK(x2))
   A__SEL(s(s(x0)), cons(x1, s(z0))) -> c4(MARK(s(z0)))
   A__SEL(s(0), cons(x0, s(z0))) -> c4(MARK(s(z0)))
   MARK(sel(x0, from(x1))) -> c7(A__SEL(mark(x0), cons(mark(mark(x1)), from(s(mark(x1))))), MARK(x0))
   MARK(sel(x0, from(from(z0)))) -> c7(A__SEL(mark(x0), a__from(a__from(mark(z0)))), MARK(x0))
   MARK(sel(x0, from(sel(z0, z1)))) -> c7(A__SEL(mark(x0), a__from(a__sel(mark(z0), mark(z1)))), MARK(x0))
   MARK(sel(x0, from(cons(z0, z1)))) -> c7(A__SEL(mark(x0), a__from(cons(mark(z0), z1))), MARK(x0))
   MARK(sel(x0, from(s(z0)))) -> c7(A__SEL(mark(x0), a__from(s(mark(z0)))), MARK(x0))
   MARK(sel(x0, from(0))) -> c7(A__SEL(mark(x0), a__from(0)), MARK(x0))
   MARK(sel(from(z0), from(x1))) -> c7(A__SEL(a__from(mark(z0)), a__from(mark(x1))), MARK(from(z0)))
   MARK(sel(sel(z0, z1), from(x1))) -> c7(A__SEL(a__sel(mark(z0), mark(z1)), a__from(mark(x1))), MARK(sel(z0, z1)))
   MARK(sel(s(z0), from(x1))) -> c7(A__SEL(s(mark(z0)), a__from(mark(x1))), MARK(s(z0)))
   MARK(sel(x0, from(x1))) -> c7(MARK(x0))
   MARK(sel(cons(z0, z1), from(x1))) -> c7(MARK(cons(z0, z1)))
   MARK(sel(0, from(x1))) -> c7(A__SEL(0, a__from(mark(x1))))
   MARK(sel(x0, sel(x1, from(z0)))) -> c7(A__SEL(mark(x0), a__sel(mark(x1), a__from(mark(z0)))), MARK(x0))
   MARK(sel(x0, sel(x1, sel(z0, z1)))) -> c7(A__SEL(mark(x0), a__sel(mark(x1), a__sel(mark(z0), mark(z1)))), MARK(x0))
   MARK(sel(x0, sel(x1, cons(z0, z1)))) -> c7(A__SEL(mark(x0), a__sel(mark(x1), cons(mark(z0), z1))), MARK(x0))
   MARK(sel(x0, sel(x1, s(z0)))) -> c7(A__SEL(mark(x0), a__sel(mark(x1), s(mark(z0)))), MARK(x0))
   MARK(sel(x0, sel(x1, 0))) -> c7(A__SEL(mark(x0), a__sel(mark(x1), 0)), MARK(x0))
   MARK(sel(x0, sel(from(z0), x2))) -> c7(A__SEL(mark(x0), a__sel(a__from(mark(z0)), mark(x2))), MARK(x0))
   MARK(sel(x0, sel(sel(z0, z1), x2))) -> c7(A__SEL(mark(x0), a__sel(a__sel(mark(z0), mark(z1)), mark(x2))), MARK(x0))
   MARK(sel(x0, sel(cons(z0, z1), x2))) -> c7(A__SEL(mark(x0), a__sel(cons(mark(z0), z1), mark(x2))), MARK(x0))
   MARK(sel(x0, sel(s(z0), x2))) -> c7(A__SEL(mark(x0), a__sel(s(mark(z0)), mark(x2))), MARK(x0))
   MARK(sel(x0, sel(0, x2))) -> c7(A__SEL(mark(x0), a__sel(0, mark(x2))), MARK(x0))
   MARK(sel(from(z0), sel(x1, x2))) -> c7(A__SEL(a__from(mark(z0)), a__sel(mark(x1), mark(x2))), MARK(from(z0)))
   MARK(sel(sel(z0, z1), sel(x1, x2))) -> c7(A__SEL(a__sel(mark(z0), mark(z1)), a__sel(mark(x1), mark(x2))), MARK(sel(z0, z1)))
   MARK(sel(s(z0), sel(x1, x2))) -> c7(A__SEL(s(mark(z0)), a__sel(mark(x1), mark(x2))), MARK(s(z0)))
   MARK(sel(x0, sel(x1, x2))) -> c7(MARK(x0))
   MARK(sel(cons(z0, z1), sel(x1, x2))) -> c7(MARK(cons(z0, z1)))
   MARK(sel(0, sel(x1, x2))) -> c7(A__SEL(0, a__sel(mark(x1), mark(x2))))
   MARK(sel(x0, cons(from(z0), x2))) -> c7(A__SEL(mark(x0), cons(a__from(mark(z0)), x2)), MARK(x0))
   MARK(sel(x0, cons(sel(z0, z1), x2))) -> c7(A__SEL(mark(x0), cons(a__sel(mark(z0), mark(z1)), x2)), MARK(x0))
   MARK(sel(x0, cons(cons(z0, z1), x2))) -> c7(A__SEL(mark(x0), cons(cons(mark(z0), z1), x2)), MARK(x0))
   MARK(sel(x0, cons(s(z0), x2))) -> c7(A__SEL(mark(x0), cons(s(mark(z0)), x2)), MARK(x0))
   MARK(sel(x0, cons(0, x2))) -> c7(A__SEL(mark(x0), cons(0, x2)), MARK(x0))
   MARK(sel(from(z0), cons(x1, x2))) -> c7(A__SEL(a__from(mark(z0)), cons(mark(x1), x2)), MARK(from(z0)))
   MARK(sel(sel(z0, z1), cons(x1, x2))) -> c7(A__SEL(a__sel(mark(z0), mark(z1)), cons(mark(x1), x2)), MARK(sel(z0, z1)))
   MARK(sel(s(z0), cons(x1, x2))) -> c7(A__SEL(s(mark(z0)), cons(mark(x1), x2)), MARK(s(z0)))
   MARK(sel(cons(z0, z1), cons(x1, x2))) -> c7(MARK(cons(z0, z1)))
   MARK(sel(0, cons(x1, x2))) -> c7(A__SEL(0, cons(mark(x1), x2)))
   MARK(sel(from(from(z0)), x1)) -> c7(A__SEL(a__from(a__from(mark(z0))), mark(x1)), MARK(from(from(z0))))
   MARK(sel(from(sel(z0, z1)), x1)) -> c7(A__SEL(a__from(a__sel(mark(z0), mark(z1))), mark(x1)), MARK(from(sel(z0, z1))))
   MARK(sel(from(cons(z0, z1)), x1)) -> c7(A__SEL(a__from(cons(mark(z0), z1)), mark(x1)), MARK(from(cons(z0, z1))))
   MARK(sel(from(s(z0)), x1)) -> c7(A__SEL(a__from(s(mark(z0))), mark(x1)), MARK(from(s(z0))))
   MARK(sel(from(0), x1)) -> c7(A__SEL(a__from(0), mark(x1)), MARK(from(0)))
   MARK(sel(from(x0), x1)) -> c7(MARK(from(x0)))
   MARK(sel(from(x0), s(z0))) -> c7(MARK(from(x0)))
   MARK(sel(from(x0), 0)) -> c7(MARK(from(x0)))
   MARK(sel(sel(x0, from(z0)), x2)) -> c7(A__SEL(a__sel(mark(x0), a__from(mark(z0))), mark(x2)), MARK(sel(x0, from(z0))))
   MARK(sel(sel(x0, sel(z0, z1)), x2)) -> c7(A__SEL(a__sel(mark(x0), a__sel(mark(z0), mark(z1))), mark(x2)), MARK(sel(x0, sel(z0, z1))))
   MARK(sel(sel(x0, cons(z0, z1)), x2)) -> c7(A__SEL(a__sel(mark(x0), cons(mark(z0), z1)), mark(x2)), MARK(sel(x0, cons(z0, z1))))
   MARK(sel(sel(x0, s(z0)), x2)) -> c7(A__SEL(a__sel(mark(x0), s(mark(z0))), mark(x2)), MARK(sel(x0, s(z0))))
   MARK(sel(sel(x0, 0), x2)) -> c7(A__SEL(a__sel(mark(x0), 0), mark(x2)), MARK(sel(x0, 0)))
   MARK(sel(sel(from(z0), x1), x2)) -> c7(A__SEL(a__sel(a__from(mark(z0)), mark(x1)), mark(x2)), MARK(sel(from(z0), x1)))
   MARK(sel(sel(sel(z0, z1), x1), x2)) -> c7(A__SEL(a__sel(a__sel(mark(z0), mark(z1)), mark(x1)), mark(x2)), MARK(sel(sel(z0, z1), x1)))
   MARK(sel(sel(cons(z0, z1), x1), x2)) -> c7(A__SEL(a__sel(cons(mark(z0), z1), mark(x1)), mark(x2)), MARK(sel(cons(z0, z1), x1)))
   MARK(sel(sel(s(z0), x1), x2)) -> c7(A__SEL(a__sel(s(mark(z0)), mark(x1)), mark(x2)), MARK(sel(s(z0), x1)))
   MARK(sel(sel(0, x1), x2)) -> c7(A__SEL(a__sel(0, mark(x1)), mark(x2)), MARK(sel(0, x1)))
   MARK(sel(sel(x0, x1), s(z0))) -> c7(MARK(sel(x0, x1)))
   MARK(sel(sel(x0, x1), 0)) -> c7(MARK(sel(x0, x1)))
   MARK(sel(sel(x0, x1), x2)) -> c7(MARK(sel(x0, x1)))
   MARK(sel(s(from(z0)), x1)) -> c7(A__SEL(s(a__from(mark(z0))), mark(x1)), MARK(s(from(z0))))
   MARK(sel(s(sel(z0, z1)), x1)) -> c7(A__SEL(s(a__sel(mark(z0), mark(z1))), mark(x1)), MARK(s(sel(z0, z1))))
   MARK(sel(s(cons(z0, z1)), x1)) -> c7(A__SEL(s(cons(mark(z0), z1)), mark(x1)), MARK(s(cons(z0, z1))))
   MARK(sel(s(s(z0)), x1)) -> c7(A__SEL(s(s(mark(z0))), mark(x1)), MARK(s(s(z0))))
   MARK(sel(s(0), x1)) -> c7(A__SEL(s(0), mark(x1)), MARK(s(0)))
   MARK(sel(s(x0), x1)) -> c7(MARK(s(x0)))
   MARK(sel(s(x0), s(z0))) -> c7(MARK(s(x0)))
   MARK(sel(s(x0), 0)) -> c7(MARK(s(x0)))
K tuples:none
Defined Rule Symbols:   a__from_1, a__sel_2, mark_1

Defined Pair Symbols:   A__FROM_1, A__SEL_2, MARK_1

Compound Symbols:   c_1, c2_1, c6_2, c9_1, c10_1, c3_1, c4_1, c7_1, c8_2, c8_1, c3_2, c4_2, c7_2


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

(165) CdtNarrowingProof (BOTH BOUNDS(ID, ID))
Use narrowing to replace MARK(sel(0, x1)) -> c7(A__SEL(0, mark(x1))) by 
   MARK(sel(0, from(z0))) -> c7(A__SEL(0, a__from(mark(z0))))
   MARK(sel(0, sel(z0, z1))) -> c7(A__SEL(0, a__sel(mark(z0), mark(z1))))
   MARK(sel(0, cons(z0, z1))) -> c7(A__SEL(0, cons(mark(z0), z1)))
   MARK(sel(0, s(z0))) -> c7(A__SEL(0, s(mark(z0))))
   MARK(sel(0, 0)) -> c7(A__SEL(0, 0))

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

(166)
Obligation:
Complexity Dependency Tuples Problem

Rules:
   a__from(z0) -> cons(mark(z0), from(s(z0)))
   a__from(z0) -> from(z0)
   a__sel(0, cons(z0, z1)) -> mark(z0)
   a__sel(s(z0), cons(z1, z2)) -> a__sel(mark(z0), mark(z2))
   a__sel(z0, z1) -> sel(z0, z1)
   mark(from(z0)) -> a__from(mark(z0))
   mark(sel(z0, z1)) -> a__sel(mark(z0), mark(z1))
   mark(cons(z0, z1)) -> cons(mark(z0), z1)
   mark(s(z0)) -> s(mark(z0))
   mark(0) -> 0
Tuples:
   A__FROM(z0) -> c(MARK(z0))
   A__SEL(0, cons(z0, z1)) -> c2(MARK(z0))
   MARK(from(z0)) -> c6(A__FROM(mark(z0)), MARK(z0))
   MARK(cons(z0, z1)) -> c9(MARK(z0))
   MARK(s(z0)) -> c10(MARK(z0))
   A__SEL(s(x0), cons(x1, s(z0))) -> c3(MARK(x0))
   A__SEL(s(x0), cons(x1, 0)) -> c3(MARK(x0))
   A__SEL(s(cons(z0, z1)), cons(x1, x2)) -> c3(MARK(cons(z0, z1)))
   A__SEL(s(x0), cons(x1, s(z0))) -> c4(MARK(s(z0)))
   A__SEL(s(cons(z0, z1)), cons(x1, x2)) -> c4(MARK(x2))
   MARK(sel(x0, s(z0))) -> c7(MARK(x0))
   MARK(sel(x0, 0)) -> c7(MARK(x0))
   MARK(sel(cons(z0, z1), x1)) -> c7(MARK(cons(z0, z1)))
   MARK(sel(x0, from(z0))) -> c8(A__SEL(mark(x0), a__from(mark(z0))), MARK(from(z0)))
   MARK(sel(x0, sel(z0, z1))) -> c8(A__SEL(mark(x0), a__sel(mark(z0), mark(z1))), MARK(sel(z0, z1)))
   MARK(sel(x0, cons(z0, z1))) -> c8(A__SEL(mark(x0), cons(mark(z0), z1)), MARK(cons(z0, z1)))
   MARK(sel(from(z0), x1)) -> c8(A__SEL(a__from(mark(z0)), mark(x1)), MARK(x1))
   MARK(sel(sel(z0, z1), x1)) -> c8(A__SEL(a__sel(mark(z0), mark(z1)), mark(x1)), MARK(x1))
   MARK(sel(s(z0), x1)) -> c8(A__SEL(s(mark(z0)), mark(x1)), MARK(x1))
   MARK(sel(0, x1)) -> c8(A__SEL(0, mark(x1)), MARK(x1))
   MARK(sel(x0, s(z0))) -> c8(MARK(s(z0)))
   MARK(sel(cons(z0, z1), x1)) -> c8(MARK(x1))
   A__SEL(s(x0), cons(x1, from(x2))) -> c3(A__SEL(mark(x0), cons(mark(mark(x2)), from(s(mark(x2))))), MARK(x0))
   A__SEL(s(x0), cons(x1, from(from(z0)))) -> c3(A__SEL(mark(x0), a__from(a__from(mark(z0)))), MARK(x0))
   A__SEL(s(x0), cons(x1, from(sel(z0, z1)))) -> c3(A__SEL(mark(x0), a__from(a__sel(mark(z0), mark(z1)))), MARK(x0))
   A__SEL(s(x0), cons(x1, from(cons(z0, z1)))) -> c3(A__SEL(mark(x0), a__from(cons(mark(z0), z1))), MARK(x0))
   A__SEL(s(x0), cons(x1, from(s(z0)))) -> c3(A__SEL(mark(x0), a__from(s(mark(z0)))), MARK(x0))
   A__SEL(s(x0), cons(x1, from(0))) -> c3(A__SEL(mark(x0), a__from(0)), MARK(x0))
   A__SEL(s(from(z0)), cons(x1, from(x2))) -> c3(A__SEL(a__from(mark(z0)), a__from(mark(x2))), MARK(from(z0)))
   A__SEL(s(sel(z0, z1)), cons(x1, from(x2))) -> c3(A__SEL(a__sel(mark(z0), mark(z1)), a__from(mark(x2))), MARK(sel(z0, z1)))
   A__SEL(s(s(z0)), cons(x1, from(x2))) -> c3(A__SEL(s(mark(z0)), a__from(mark(x2))), MARK(s(z0)))
   A__SEL(s(x0), cons(x1, from(x2))) -> c3(MARK(x0))
   A__SEL(s(cons(z0, z1)), cons(x1, from(x2))) -> c3(MARK(cons(z0, z1)))
   A__SEL(s(0), cons(x1, from(x2))) -> c3(A__SEL(0, a__from(mark(x2))))
   A__SEL(s(x0), cons(x1, sel(x2, from(z0)))) -> c3(A__SEL(mark(x0), a__sel(mark(x2), a__from(mark(z0)))), MARK(x0))
   A__SEL(s(x0), cons(x1, sel(x2, sel(z0, z1)))) -> c3(A__SEL(mark(x0), a__sel(mark(x2), a__sel(mark(z0), mark(z1)))), MARK(x0))
   A__SEL(s(x0), cons(x1, sel(x2, cons(z0, z1)))) -> c3(A__SEL(mark(x0), a__sel(mark(x2), cons(mark(z0), z1))), MARK(x0))
   A__SEL(s(x0), cons(x1, sel(x2, s(z0)))) -> c3(A__SEL(mark(x0), a__sel(mark(x2), s(mark(z0)))), MARK(x0))
   A__SEL(s(x0), cons(x1, sel(x2, 0))) -> c3(A__SEL(mark(x0), a__sel(mark(x2), 0)), MARK(x0))
   A__SEL(s(x0), cons(x1, sel(from(z0), x3))) -> c3(A__SEL(mark(x0), a__sel(a__from(mark(z0)), mark(x3))), MARK(x0))
   A__SEL(s(x0), cons(x1, sel(sel(z0, z1), x3))) -> c3(A__SEL(mark(x0), a__sel(a__sel(mark(z0), mark(z1)), mark(x3))), MARK(x0))
   A__SEL(s(x0), cons(x1, sel(cons(z0, z1), x3))) -> c3(A__SEL(mark(x0), a__sel(cons(mark(z0), z1), mark(x3))), MARK(x0))
   A__SEL(s(x0), cons(x1, sel(s(z0), x3))) -> c3(A__SEL(mark(x0), a__sel(s(mark(z0)), mark(x3))), MARK(x0))
   A__SEL(s(x0), cons(x1, sel(0, x3))) -> c3(A__SEL(mark(x0), a__sel(0, mark(x3))), MARK(x0))
   A__SEL(s(from(z0)), cons(x1, sel(x2, x3))) -> c3(A__SEL(a__from(mark(z0)), a__sel(mark(x2), mark(x3))), MARK(from(z0)))
   A__SEL(s(sel(z0, z1)), cons(x1, sel(x2, x3))) -> c3(A__SEL(a__sel(mark(z0), mark(z1)), a__sel(mark(x2), mark(x3))), MARK(sel(z0, z1)))
   A__SEL(s(s(z0)), cons(x1, sel(x2, x3))) -> c3(A__SEL(s(mark(z0)), a__sel(mark(x2), mark(x3))), MARK(s(z0)))
   A__SEL(s(x0), cons(x1, sel(x2, x3))) -> c3(MARK(x0))
   A__SEL(s(cons(z0, z1)), cons(x1, sel(x2, x3))) -> c3(MARK(cons(z0, z1)))
   A__SEL(s(0), cons(x1, sel(x2, x3))) -> c3(A__SEL(0, a__sel(mark(x2), mark(x3))))
   A__SEL(s(x0), cons(x1, cons(from(z0), x3))) -> c3(A__SEL(mark(x0), cons(a__from(mark(z0)), x3)), MARK(x0))
   A__SEL(s(x0), cons(x1, cons(sel(z0, z1), x3))) -> c3(A__SEL(mark(x0), cons(a__sel(mark(z0), mark(z1)), x3)), MARK(x0))
   A__SEL(s(x0), cons(x1, cons(cons(z0, z1), x3))) -> c3(A__SEL(mark(x0), cons(cons(mark(z0), z1), x3)), MARK(x0))
   A__SEL(s(x0), cons(x1, cons(s(z0), x3))) -> c3(A__SEL(mark(x0), cons(s(mark(z0)), x3)), MARK(x0))
   A__SEL(s(x0), cons(x1, cons(0, x3))) -> c3(A__SEL(mark(x0), cons(0, x3)), MARK(x0))
   A__SEL(s(from(z0)), cons(x1, cons(x2, x3))) -> c3(A__SEL(a__from(mark(z0)), cons(mark(x2), x3)), MARK(from(z0)))
   A__SEL(s(sel(z0, z1)), cons(x1, cons(x2, x3))) -> c3(A__SEL(a__sel(mark(z0), mark(z1)), cons(mark(x2), x3)), MARK(sel(z0, z1)))
   A__SEL(s(s(z0)), cons(x1, cons(x2, x3))) -> c3(A__SEL(s(mark(z0)), cons(mark(x2), x3)), MARK(s(z0)))
   A__SEL(s(cons(z0, z1)), cons(x1, cons(x2, x3))) -> c3(MARK(cons(z0, z1)))
   A__SEL(s(0), cons(x1, cons(x2, x3))) -> c3(A__SEL(0, cons(mark(x2), x3)))
   A__SEL(s(from(from(z0))), cons(x1, x2)) -> c3(A__SEL(a__from(a__from(mark(z0))), mark(x2)), MARK(from(from(z0))))
   A__SEL(s(from(sel(z0, z1))), cons(x1, x2)) -> c3(A__SEL(a__from(a__sel(mark(z0), mark(z1))), mark(x2)), MARK(from(sel(z0, z1))))
   A__SEL(s(from(cons(z0, z1))), cons(x1, x2)) -> c3(A__SEL(a__from(cons(mark(z0), z1)), mark(x2)), MARK(from(cons(z0, z1))))
   A__SEL(s(from(s(z0))), cons(x1, x2)) -> c3(A__SEL(a__from(s(mark(z0))), mark(x2)), MARK(from(s(z0))))
   A__SEL(s(from(0)), cons(x1, x2)) -> c3(A__SEL(a__from(0), mark(x2)), MARK(from(0)))
   A__SEL(s(from(x0)), cons(x1, x2)) -> c3(MARK(from(x0)))
   A__SEL(s(from(x0)), cons(x1, s(z0))) -> c3(MARK(from(x0)))
   A__SEL(s(from(x0)), cons(x1, 0)) -> c3(MARK(from(x0)))
   A__SEL(s(sel(x0, from(z0))), cons(x2, x3)) -> c3(A__SEL(a__sel(mark(x0), a__from(mark(z0))), mark(x3)), MARK(sel(x0, from(z0))))
   A__SEL(s(sel(x0, sel(z0, z1))), cons(x2, x3)) -> c3(A__SEL(a__sel(mark(x0), a__sel(mark(z0), mark(z1))), mark(x3)), MARK(sel(x0, sel(z0, z1))))
   A__SEL(s(sel(x0, cons(z0, z1))), cons(x2, x3)) -> c3(A__SEL(a__sel(mark(x0), cons(mark(z0), z1)), mark(x3)), MARK(sel(x0, cons(z0, z1))))
   A__SEL(s(sel(x0, s(z0))), cons(x2, x3)) -> c3(A__SEL(a__sel(mark(x0), s(mark(z0))), mark(x3)), MARK(sel(x0, s(z0))))
   A__SEL(s(sel(x0, 0)), cons(x2, x3)) -> c3(A__SEL(a__sel(mark(x0), 0), mark(x3)), MARK(sel(x0, 0)))
   A__SEL(s(sel(from(z0), x1)), cons(x2, x3)) -> c3(A__SEL(a__sel(a__from(mark(z0)), mark(x1)), mark(x3)), MARK(sel(from(z0), x1)))
   A__SEL(s(sel(sel(z0, z1), x1)), cons(x2, x3)) -> c3(A__SEL(a__sel(a__sel(mark(z0), mark(z1)), mark(x1)), mark(x3)), MARK(sel(sel(z0, z1), x1)))
   A__SEL(s(sel(cons(z0, z1), x1)), cons(x2, x3)) -> c3(A__SEL(a__sel(cons(mark(z0), z1), mark(x1)), mark(x3)), MARK(sel(cons(z0, z1), x1)))
   A__SEL(s(sel(s(z0), x1)), cons(x2, x3)) -> c3(A__SEL(a__sel(s(mark(z0)), mark(x1)), mark(x3)), MARK(sel(s(z0), x1)))
   A__SEL(s(sel(0, x1)), cons(x2, x3)) -> c3(A__SEL(a__sel(0, mark(x1)), mark(x3)), MARK(sel(0, x1)))
   A__SEL(s(sel(x0, x1)), cons(x2, s(z0))) -> c3(MARK(sel(x0, x1)))
   A__SEL(s(sel(x0, x1)), cons(x2, 0)) -> c3(MARK(sel(x0, x1)))
   A__SEL(s(sel(x0, x1)), cons(x2, x3)) -> c3(MARK(sel(x0, x1)))
   A__SEL(s(s(from(z0))), cons(x1, x2)) -> c3(A__SEL(s(a__from(mark(z0))), mark(x2)), MARK(s(from(z0))))
   A__SEL(s(s(sel(z0, z1))), cons(x1, x2)) -> c3(A__SEL(s(a__sel(mark(z0), mark(z1))), mark(x2)), MARK(s(sel(z0, z1))))
   A__SEL(s(s(cons(z0, z1))), cons(x1, x2)) -> c3(A__SEL(s(cons(mark(z0), z1)), mark(x2)), MARK(s(cons(z0, z1))))
   A__SEL(s(s(s(z0))), cons(x1, x2)) -> c3(A__SEL(s(s(mark(z0))), mark(x2)), MARK(s(s(z0))))
   A__SEL(s(s(0)), cons(x1, x2)) -> c3(A__SEL(s(0), mark(x2)), MARK(s(0)))
   A__SEL(s(s(x0)), cons(x1, x2)) -> c3(MARK(s(x0)))
   A__SEL(s(s(x0)), cons(x1, s(z0))) -> c3(MARK(s(x0)))
   A__SEL(s(s(x0)), cons(x1, 0)) -> c3(MARK(s(x0)))
   A__SEL(s(x0), cons(x1, from(x2))) -> c4(A__SEL(mark(x0), cons(mark(mark(x2)), from(s(mark(x2))))), MARK(from(x2)))
   A__SEL(s(x0), cons(x1, from(from(z0)))) -> c4(A__SEL(mark(x0), a__from(a__from(mark(z0)))), MARK(from(from(z0))))
   A__SEL(s(x0), cons(x1, from(sel(z0, z1)))) -> c4(A__SEL(mark(x0), a__from(a__sel(mark(z0), mark(z1)))), MARK(from(sel(z0, z1))))
   A__SEL(s(x0), cons(x1, from(cons(z0, z1)))) -> c4(A__SEL(mark(x0), a__from(cons(mark(z0), z1))), MARK(from(cons(z0, z1))))
   A__SEL(s(x0), cons(x1, from(s(z0)))) -> c4(A__SEL(mark(x0), a__from(s(mark(z0)))), MARK(from(s(z0))))
   A__SEL(s(x0), cons(x1, from(0))) -> c4(A__SEL(mark(x0), a__from(0)), MARK(from(0)))
   A__SEL(s(from(z0)), cons(x1, from(x2))) -> c4(A__SEL(a__from(mark(z0)), a__from(mark(x2))), MARK(from(x2)))
   A__SEL(s(sel(z0, z1)), cons(x1, from(x2))) -> c4(A__SEL(a__sel(mark(z0), mark(z1)), a__from(mark(x2))), MARK(from(x2)))
   A__SEL(s(s(z0)), cons(x1, from(x2))) -> c4(A__SEL(s(mark(z0)), a__from(mark(x2))), MARK(from(x2)))
   A__SEL(s(0), cons(x1, from(x2))) -> c4(A__SEL(0, a__from(mark(x2))), MARK(from(x2)))
   A__SEL(s(x0), cons(x1, from(x2))) -> c4(MARK(from(x2)))
   A__SEL(s(cons(z0, z1)), cons(x1, from(x2))) -> c4(MARK(from(x2)))
   A__SEL(s(x0), cons(x1, sel(x2, from(z0)))) -> c4(A__SEL(mark(x0), a__sel(mark(x2), a__from(mark(z0)))), MARK(sel(x2, from(z0))))
   A__SEL(s(x0), cons(x1, sel(x2, sel(z0, z1)))) -> c4(A__SEL(mark(x0), a__sel(mark(x2), a__sel(mark(z0), mark(z1)))), MARK(sel(x2, sel(z0, z1))))
   A__SEL(s(x0), cons(x1, sel(x2, cons(z0, z1)))) -> c4(A__SEL(mark(x0), a__sel(mark(x2), cons(mark(z0), z1))), MARK(sel(x2, cons(z0, z1))))
   A__SEL(s(x0), cons(x1, sel(x2, s(z0)))) -> c4(A__SEL(mark(x0), a__sel(mark(x2), s(mark(z0)))), MARK(sel(x2, s(z0))))
   A__SEL(s(x0), cons(x1, sel(x2, 0))) -> c4(A__SEL(mark(x0), a__sel(mark(x2), 0)), MARK(sel(x2, 0)))
   A__SEL(s(x0), cons(x1, sel(from(z0), x3))) -> c4(A__SEL(mark(x0), a__sel(a__from(mark(z0)), mark(x3))), MARK(sel(from(z0), x3)))
   A__SEL(s(x0), cons(x1, sel(sel(z0, z1), x3))) -> c4(A__SEL(mark(x0), a__sel(a__sel(mark(z0), mark(z1)), mark(x3))), MARK(sel(sel(z0, z1), x3)))
   A__SEL(s(x0), cons(x1, sel(cons(z0, z1), x3))) -> c4(A__SEL(mark(x0), a__sel(cons(mark(z0), z1), mark(x3))), MARK(sel(cons(z0, z1), x3)))
   A__SEL(s(x0), cons(x1, sel(s(z0), x3))) -> c4(A__SEL(mark(x0), a__sel(s(mark(z0)), mark(x3))), MARK(sel(s(z0), x3)))
   A__SEL(s(x0), cons(x1, sel(0, x3))) -> c4(A__SEL(mark(x0), a__sel(0, mark(x3))), MARK(sel(0, x3)))
   A__SEL(s(from(z0)), cons(x1, sel(x2, x3))) -> c4(A__SEL(a__from(mark(z0)), a__sel(mark(x2), mark(x3))), MARK(sel(x2, x3)))
   A__SEL(s(sel(z0, z1)), cons(x1, sel(x2, x3))) -> c4(A__SEL(a__sel(mark(z0), mark(z1)), a__sel(mark(x2), mark(x3))), MARK(sel(x2, x3)))
   A__SEL(s(s(z0)), cons(x1, sel(x2, x3))) -> c4(A__SEL(s(mark(z0)), a__sel(mark(x2), mark(x3))), MARK(sel(x2, x3)))
   A__SEL(s(0), cons(x1, sel(x2, x3))) -> c4(A__SEL(0, a__sel(mark(x2), mark(x3))), MARK(sel(x2, x3)))
   A__SEL(s(x0), cons(x1, sel(x2, x3))) -> c4(MARK(sel(x2, x3)))
   A__SEL(s(cons(z0, z1)), cons(x1, sel(x2, x3))) -> c4(MARK(sel(x2, x3)))
   A__SEL(s(x0), cons(x1, cons(from(z0), x3))) -> c4(A__SEL(mark(x0), cons(a__from(mark(z0)), x3)), MARK(cons(from(z0), x3)))
   A__SEL(s(x0), cons(x1, cons(sel(z0, z1), x3))) -> c4(A__SEL(mark(x0), cons(a__sel(mark(z0), mark(z1)), x3)), MARK(cons(sel(z0, z1), x3)))
   A__SEL(s(x0), cons(x1, cons(cons(z0, z1), x3))) -> c4(A__SEL(mark(x0), cons(cons(mark(z0), z1), x3)), MARK(cons(cons(z0, z1), x3)))
   A__SEL(s(x0), cons(x1, cons(s(z0), x3))) -> c4(A__SEL(mark(x0), cons(s(mark(z0)), x3)), MARK(cons(s(z0), x3)))
   A__SEL(s(x0), cons(x1, cons(0, x3))) -> c4(A__SEL(mark(x0), cons(0, x3)), MARK(cons(0, x3)))
   A__SEL(s(from(z0)), cons(x1, cons(x2, x3))) -> c4(A__SEL(a__from(mark(z0)), cons(mark(x2), x3)), MARK(cons(x2, x3)))
   A__SEL(s(sel(z0, z1)), cons(x1, cons(x2, x3))) -> c4(A__SEL(a__sel(mark(z0), mark(z1)), cons(mark(x2), x3)), MARK(cons(x2, x3)))
   A__SEL(s(s(z0)), cons(x1, cons(x2, x3))) -> c4(A__SEL(s(mark(z0)), cons(mark(x2), x3)), MARK(cons(x2, x3)))
   A__SEL(s(0), cons(x1, cons(x2, x3))) -> c4(A__SEL(0, cons(mark(x2), x3)), MARK(cons(x2, x3)))
   A__SEL(s(x0), cons(x1, cons(x2, x3))) -> c4(MARK(cons(x2, x3)))
   A__SEL(s(cons(z0, z1)), cons(x1, cons(x2, x3))) -> c4(MARK(cons(x2, x3)))
   A__SEL(s(from(from(z0))), cons(x1, x2)) -> c4(A__SEL(a__from(a__from(mark(z0))), mark(x2)), MARK(x2))
   A__SEL(s(from(sel(z0, z1))), cons(x1, x2)) -> c4(A__SEL(a__from(a__sel(mark(z0), mark(z1))), mark(x2)), MARK(x2))
   A__SEL(s(from(cons(z0, z1))), cons(x1, x2)) -> c4(A__SEL(a__from(cons(mark(z0), z1)), mark(x2)), MARK(x2))
   A__SEL(s(from(s(z0))), cons(x1, x2)) -> c4(A__SEL(a__from(s(mark(z0))), mark(x2)), MARK(x2))
   A__SEL(s(from(0)), cons(x1, x2)) -> c4(A__SEL(a__from(0), mark(x2)), MARK(x2))
   A__SEL(s(from(x0)), cons(x1, s(z0))) -> c4(MARK(s(z0)))
   A__SEL(s(from(x0)), cons(x1, x2)) -> c4(MARK(x2))
   A__SEL(s(sel(x0, from(z0))), cons(x2, x3)) -> c4(A__SEL(a__sel(mark(x0), a__from(mark(z0))), mark(x3)), MARK(x3))
   A__SEL(s(sel(x0, sel(z0, z1))), cons(x2, x3)) -> c4(A__SEL(a__sel(mark(x0), a__sel(mark(z0), mark(z1))), mark(x3)), MARK(x3))
   A__SEL(s(sel(x0, cons(z0, z1))), cons(x2, x3)) -> c4(A__SEL(a__sel(mark(x0), cons(mark(z0), z1)), mark(x3)), MARK(x3))
   A__SEL(s(sel(x0, s(z0))), cons(x2, x3)) -> c4(A__SEL(a__sel(mark(x0), s(mark(z0))), mark(x3)), MARK(x3))
   A__SEL(s(sel(x0, 0)), cons(x2, x3)) -> c4(A__SEL(a__sel(mark(x0), 0), mark(x3)), MARK(x3))
   A__SEL(s(sel(from(z0), x1)), cons(x2, x3)) -> c4(A__SEL(a__sel(a__from(mark(z0)), mark(x1)), mark(x3)), MARK(x3))
   A__SEL(s(sel(sel(z0, z1), x1)), cons(x2, x3)) -> c4(A__SEL(a__sel(a__sel(mark(z0), mark(z1)), mark(x1)), mark(x3)), MARK(x3))
   A__SEL(s(sel(cons(z0, z1), x1)), cons(x2, x3)) -> c4(A__SEL(a__sel(cons(mark(z0), z1), mark(x1)), mark(x3)), MARK(x3))
   A__SEL(s(sel(s(z0), x1)), cons(x2, x3)) -> c4(A__SEL(a__sel(s(mark(z0)), mark(x1)), mark(x3)), MARK(x3))
   A__SEL(s(sel(0, x1)), cons(x2, x3)) -> c4(A__SEL(a__sel(0, mark(x1)), mark(x3)), MARK(x3))
   A__SEL(s(sel(x0, x1)), cons(x2, s(z0))) -> c4(MARK(s(z0)))
   A__SEL(s(sel(x0, x1)), cons(x2, x3)) -> c4(MARK(x3))
   A__SEL(s(s(from(z0))), cons(x1, x2)) -> c4(A__SEL(s(a__from(mark(z0))), mark(x2)), MARK(x2))
   A__SEL(s(s(sel(z0, z1))), cons(x1, x2)) -> c4(A__SEL(s(a__sel(mark(z0), mark(z1))), mark(x2)), MARK(x2))
   A__SEL(s(s(cons(z0, z1))), cons(x1, x2)) -> c4(A__SEL(s(cons(mark(z0), z1)), mark(x2)), MARK(x2))
   A__SEL(s(s(s(z0))), cons(x1, x2)) -> c4(A__SEL(s(s(mark(z0))), mark(x2)), MARK(x2))
   A__SEL(s(s(0)), cons(x1, x2)) -> c4(A__SEL(s(0), mark(x2)), MARK(x2))
   A__SEL(s(s(x0)), cons(x1, s(z0))) -> c4(MARK(s(z0)))
   A__SEL(s(0), cons(x0, s(z0))) -> c4(MARK(s(z0)))
   MARK(sel(x0, from(x1))) -> c7(A__SEL(mark(x0), cons(mark(mark(x1)), from(s(mark(x1))))), MARK(x0))
   MARK(sel(x0, from(from(z0)))) -> c7(A__SEL(mark(x0), a__from(a__from(mark(z0)))), MARK(x0))
   MARK(sel(x0, from(sel(z0, z1)))) -> c7(A__SEL(mark(x0), a__from(a__sel(mark(z0), mark(z1)))), MARK(x0))
   MARK(sel(x0, from(cons(z0, z1)))) -> c7(A__SEL(mark(x0), a__from(cons(mark(z0), z1))), MARK(x0))
   MARK(sel(x0, from(s(z0)))) -> c7(A__SEL(mark(x0), a__from(s(mark(z0)))), MARK(x0))
   MARK(sel(x0, from(0))) -> c7(A__SEL(mark(x0), a__from(0)), MARK(x0))
   MARK(sel(from(z0), from(x1))) -> c7(A__SEL(a__from(mark(z0)), a__from(mark(x1))), MARK(from(z0)))
   MARK(sel(sel(z0, z1), from(x1))) -> c7(A__SEL(a__sel(mark(z0), mark(z1)), a__from(mark(x1))), MARK(sel(z0, z1)))
   MARK(sel(s(z0), from(x1))) -> c7(A__SEL(s(mark(z0)), a__from(mark(x1))), MARK(s(z0)))
   MARK(sel(x0, from(x1))) -> c7(MARK(x0))
   MARK(sel(cons(z0, z1), from(x1))) -> c7(MARK(cons(z0, z1)))
   MARK(sel(0, from(x1))) -> c7(A__SEL(0, a__from(mark(x1))))
   MARK(sel(x0, sel(x1, from(z0)))) -> c7(A__SEL(mark(x0), a__sel(mark(x1), a__from(mark(z0)))), MARK(x0))
   MARK(sel(x0, sel(x1, sel(z0, z1)))) -> c7(A__SEL(mark(x0), a__sel(mark(x1), a__sel(mark(z0), mark(z1)))), MARK(x0))
   MARK(sel(x0, sel(x1, cons(z0, z1)))) -> c7(A__SEL(mark(x0), a__sel(mark(x1), cons(mark(z0), z1))), MARK(x0))
   MARK(sel(x0, sel(x1, s(z0)))) -> c7(A__SEL(mark(x0), a__sel(mark(x1), s(mark(z0)))), MARK(x0))
   MARK(sel(x0, sel(x1, 0))) -> c7(A__SEL(mark(x0), a__sel(mark(x1), 0)), MARK(x0))
   MARK(sel(x0, sel(from(z0), x2))) -> c7(A__SEL(mark(x0), a__sel(a__from(mark(z0)), mark(x2))), MARK(x0))
   MARK(sel(x0, sel(sel(z0, z1), x2))) -> c7(A__SEL(mark(x0), a__sel(a__sel(mark(z0), mark(z1)), mark(x2))), MARK(x0))
   MARK(sel(x0, sel(cons(z0, z1), x2))) -> c7(A__SEL(mark(x0), a__sel(cons(mark(z0), z1), mark(x2))), MARK(x0))
   MARK(sel(x0, sel(s(z0), x2))) -> c7(A__SEL(mark(x0), a__sel(s(mark(z0)), mark(x2))), MARK(x0))
   MARK(sel(x0, sel(0, x2))) -> c7(A__SEL(mark(x0), a__sel(0, mark(x2))), MARK(x0))
   MARK(sel(from(z0), sel(x1, x2))) -> c7(A__SEL(a__from(mark(z0)), a__sel(mark(x1), mark(x2))), MARK(from(z0)))
   MARK(sel(sel(z0, z1), sel(x1, x2))) -> c7(A__SEL(a__sel(mark(z0), mark(z1)), a__sel(mark(x1), mark(x2))), MARK(sel(z0, z1)))
   MARK(sel(s(z0), sel(x1, x2))) -> c7(A__SEL(s(mark(z0)), a__sel(mark(x1), mark(x2))), MARK(s(z0)))
   MARK(sel(x0, sel(x1, x2))) -> c7(MARK(x0))
   MARK(sel(cons(z0, z1), sel(x1, x2))) -> c7(MARK(cons(z0, z1)))
   MARK(sel(0, sel(x1, x2))) -> c7(A__SEL(0, a__sel(mark(x1), mark(x2))))
   MARK(sel(x0, cons(from(z0), x2))) -> c7(A__SEL(mark(x0), cons(a__from(mark(z0)), x2)), MARK(x0))
   MARK(sel(x0, cons(sel(z0, z1), x2))) -> c7(A__SEL(mark(x0), cons(a__sel(mark(z0), mark(z1)), x2)), MARK(x0))
   MARK(sel(x0, cons(cons(z0, z1), x2))) -> c7(A__SEL(mark(x0), cons(cons(mark(z0), z1), x2)), MARK(x0))
   MARK(sel(x0, cons(s(z0), x2))) -> c7(A__SEL(mark(x0), cons(s(mark(z0)), x2)), MARK(x0))
   MARK(sel(x0, cons(0, x2))) -> c7(A__SEL(mark(x0), cons(0, x2)), MARK(x0))
   MARK(sel(from(z0), cons(x1, x2))) -> c7(A__SEL(a__from(mark(z0)), cons(mark(x1), x2)), MARK(from(z0)))
   MARK(sel(sel(z0, z1), cons(x1, x2))) -> c7(A__SEL(a__sel(mark(z0), mark(z1)), cons(mark(x1), x2)), MARK(sel(z0, z1)))
   MARK(sel(s(z0), cons(x1, x2))) -> c7(A__SEL(s(mark(z0)), cons(mark(x1), x2)), MARK(s(z0)))
   MARK(sel(cons(z0, z1), cons(x1, x2))) -> c7(MARK(cons(z0, z1)))
   MARK(sel(0, cons(x1, x2))) -> c7(A__SEL(0, cons(mark(x1), x2)))
   MARK(sel(from(from(z0)), x1)) -> c7(A__SEL(a__from(a__from(mark(z0))), mark(x1)), MARK(from(from(z0))))
   MARK(sel(from(sel(z0, z1)), x1)) -> c7(A__SEL(a__from(a__sel(mark(z0), mark(z1))), mark(x1)), MARK(from(sel(z0, z1))))
   MARK(sel(from(cons(z0, z1)), x1)) -> c7(A__SEL(a__from(cons(mark(z0), z1)), mark(x1)), MARK(from(cons(z0, z1))))
   MARK(sel(from(s(z0)), x1)) -> c7(A__SEL(a__from(s(mark(z0))), mark(x1)), MARK(from(s(z0))))
   MARK(sel(from(0), x1)) -> c7(A__SEL(a__from(0), mark(x1)), MARK(from(0)))
   MARK(sel(from(x0), x1)) -> c7(MARK(from(x0)))
   MARK(sel(from(x0), s(z0))) -> c7(MARK(from(x0)))
   MARK(sel(from(x0), 0)) -> c7(MARK(from(x0)))
   MARK(sel(sel(x0, from(z0)), x2)) -> c7(A__SEL(a__sel(mark(x0), a__from(mark(z0))), mark(x2)), MARK(sel(x0, from(z0))))
   MARK(sel(sel(x0, sel(z0, z1)), x2)) -> c7(A__SEL(a__sel(mark(x0), a__sel(mark(z0), mark(z1))), mark(x2)), MARK(sel(x0, sel(z0, z1))))
   MARK(sel(sel(x0, cons(z0, z1)), x2)) -> c7(A__SEL(a__sel(mark(x0), cons(mark(z0), z1)), mark(x2)), MARK(sel(x0, cons(z0, z1))))
   MARK(sel(sel(x0, s(z0)), x2)) -> c7(A__SEL(a__sel(mark(x0), s(mark(z0))), mark(x2)), MARK(sel(x0, s(z0))))
   MARK(sel(sel(x0, 0), x2)) -> c7(A__SEL(a__sel(mark(x0), 0), mark(x2)), MARK(sel(x0, 0)))
   MARK(sel(sel(from(z0), x1), x2)) -> c7(A__SEL(a__sel(a__from(mark(z0)), mark(x1)), mark(x2)), MARK(sel(from(z0), x1)))
   MARK(sel(sel(sel(z0, z1), x1), x2)) -> c7(A__SEL(a__sel(a__sel(mark(z0), mark(z1)), mark(x1)), mark(x2)), MARK(sel(sel(z0, z1), x1)))
   MARK(sel(sel(cons(z0, z1), x1), x2)) -> c7(A__SEL(a__sel(cons(mark(z0), z1), mark(x1)), mark(x2)), MARK(sel(cons(z0, z1), x1)))
   MARK(sel(sel(s(z0), x1), x2)) -> c7(A__SEL(a__sel(s(mark(z0)), mark(x1)), mark(x2)), MARK(sel(s(z0), x1)))
   MARK(sel(sel(0, x1), x2)) -> c7(A__SEL(a__sel(0, mark(x1)), mark(x2)), MARK(sel(0, x1)))
   MARK(sel(sel(x0, x1), s(z0))) -> c7(MARK(sel(x0, x1)))
   MARK(sel(sel(x0, x1), 0)) -> c7(MARK(sel(x0, x1)))
   MARK(sel(sel(x0, x1), x2)) -> c7(MARK(sel(x0, x1)))
   MARK(sel(s(from(z0)), x1)) -> c7(A__SEL(s(a__from(mark(z0))), mark(x1)), MARK(s(from(z0))))
   MARK(sel(s(sel(z0, z1)), x1)) -> c7(A__SEL(s(a__sel(mark(z0), mark(z1))), mark(x1)), MARK(s(sel(z0, z1))))
   MARK(sel(s(cons(z0, z1)), x1)) -> c7(A__SEL(s(cons(mark(z0), z1)), mark(x1)), MARK(s(cons(z0, z1))))
   MARK(sel(s(s(z0)), x1)) -> c7(A__SEL(s(s(mark(z0))), mark(x1)), MARK(s(s(z0))))
   MARK(sel(s(0), x1)) -> c7(A__SEL(s(0), mark(x1)), MARK(s(0)))
   MARK(sel(s(x0), x1)) -> c7(MARK(s(x0)))
   MARK(sel(s(x0), s(z0))) -> c7(MARK(s(x0)))
   MARK(sel(s(x0), 0)) -> c7(MARK(s(x0)))
   MARK(sel(0, s(z0))) -> c7(A__SEL(0, s(mark(z0))))
   MARK(sel(0, 0)) -> c7(A__SEL(0, 0))
S tuples:
   A__FROM(z0) -> c(MARK(z0))
   A__SEL(0, cons(z0, z1)) -> c2(MARK(z0))
   MARK(from(z0)) -> c6(A__FROM(mark(z0)), MARK(z0))
   MARK(cons(z0, z1)) -> c9(MARK(z0))
   MARK(s(z0)) -> c10(MARK(z0))
   A__SEL(s(x0), cons(x1, s(z0))) -> c3(MARK(x0))
   A__SEL(s(x0), cons(x1, 0)) -> c3(MARK(x0))
   A__SEL(s(cons(z0, z1)), cons(x1, x2)) -> c3(MARK(cons(z0, z1)))
   A__SEL(s(x0), cons(x1, s(z0))) -> c4(MARK(s(z0)))
   A__SEL(s(cons(z0, z1)), cons(x1, x2)) -> c4(MARK(x2))
   MARK(sel(x0, s(z0))) -> c7(MARK(x0))
   MARK(sel(x0, 0)) -> c7(MARK(x0))
   MARK(sel(cons(z0, z1), x1)) -> c7(MARK(cons(z0, z1)))
   MARK(sel(x0, from(z0))) -> c8(A__SEL(mark(x0), a__from(mark(z0))), MARK(from(z0)))
   MARK(sel(x0, sel(z0, z1))) -> c8(A__SEL(mark(x0), a__sel(mark(z0), mark(z1))), MARK(sel(z0, z1)))
   MARK(sel(x0, cons(z0, z1))) -> c8(A__SEL(mark(x0), cons(mark(z0), z1)), MARK(cons(z0, z1)))
   MARK(sel(from(z0), x1)) -> c8(A__SEL(a__from(mark(z0)), mark(x1)), MARK(x1))
   MARK(sel(sel(z0, z1), x1)) -> c8(A__SEL(a__sel(mark(z0), mark(z1)), mark(x1)), MARK(x1))
   MARK(sel(s(z0), x1)) -> c8(A__SEL(s(mark(z0)), mark(x1)), MARK(x1))
   MARK(sel(0, x1)) -> c8(A__SEL(0, mark(x1)), MARK(x1))
   MARK(sel(x0, s(z0))) -> c8(MARK(s(z0)))
   MARK(sel(cons(z0, z1), x1)) -> c8(MARK(x1))
   A__SEL(s(x0), cons(x1, from(x2))) -> c3(A__SEL(mark(x0), cons(mark(mark(x2)), from(s(mark(x2))))), MARK(x0))
   A__SEL(s(x0), cons(x1, from(from(z0)))) -> c3(A__SEL(mark(x0), a__from(a__from(mark(z0)))), MARK(x0))
   A__SEL(s(x0), cons(x1, from(sel(z0, z1)))) -> c3(A__SEL(mark(x0), a__from(a__sel(mark(z0), mark(z1)))), MARK(x0))
   A__SEL(s(x0), cons(x1, from(cons(z0, z1)))) -> c3(A__SEL(mark(x0), a__from(cons(mark(z0), z1))), MARK(x0))
   A__SEL(s(x0), cons(x1, from(s(z0)))) -> c3(A__SEL(mark(x0), a__from(s(mark(z0)))), MARK(x0))
   A__SEL(s(x0), cons(x1, from(0))) -> c3(A__SEL(mark(x0), a__from(0)), MARK(x0))
   A__SEL(s(from(z0)), cons(x1, from(x2))) -> c3(A__SEL(a__from(mark(z0)), a__from(mark(x2))), MARK(from(z0)))
   A__SEL(s(sel(z0, z1)), cons(x1, from(x2))) -> c3(A__SEL(a__sel(mark(z0), mark(z1)), a__from(mark(x2))), MARK(sel(z0, z1)))
   A__SEL(s(s(z0)), cons(x1, from(x2))) -> c3(A__SEL(s(mark(z0)), a__from(mark(x2))), MARK(s(z0)))
   A__SEL(s(x0), cons(x1, from(x2))) -> c3(MARK(x0))
   A__SEL(s(cons(z0, z1)), cons(x1, from(x2))) -> c3(MARK(cons(z0, z1)))
   A__SEL(s(0), cons(x1, from(x2))) -> c3(A__SEL(0, a__from(mark(x2))))
   A__SEL(s(x0), cons(x1, sel(x2, from(z0)))) -> c3(A__SEL(mark(x0), a__sel(mark(x2), a__from(mark(z0)))), MARK(x0))
   A__SEL(s(x0), cons(x1, sel(x2, sel(z0, z1)))) -> c3(A__SEL(mark(x0), a__sel(mark(x2), a__sel(mark(z0), mark(z1)))), MARK(x0))
   A__SEL(s(x0), cons(x1, sel(x2, cons(z0, z1)))) -> c3(A__SEL(mark(x0), a__sel(mark(x2), cons(mark(z0), z1))), MARK(x0))
   A__SEL(s(x0), cons(x1, sel(x2, s(z0)))) -> c3(A__SEL(mark(x0), a__sel(mark(x2), s(mark(z0)))), MARK(x0))
   A__SEL(s(x0), cons(x1, sel(x2, 0))) -> c3(A__SEL(mark(x0), a__sel(mark(x2), 0)), MARK(x0))
   A__SEL(s(x0), cons(x1, sel(from(z0), x3))) -> c3(A__SEL(mark(x0), a__sel(a__from(mark(z0)), mark(x3))), MARK(x0))
   A__SEL(s(x0), cons(x1, sel(sel(z0, z1), x3))) -> c3(A__SEL(mark(x0), a__sel(a__sel(mark(z0), mark(z1)), mark(x3))), MARK(x0))
   A__SEL(s(x0), cons(x1, sel(cons(z0, z1), x3))) -> c3(A__SEL(mark(x0), a__sel(cons(mark(z0), z1), mark(x3))), MARK(x0))
   A__SEL(s(x0), cons(x1, sel(s(z0), x3))) -> c3(A__SEL(mark(x0), a__sel(s(mark(z0)), mark(x3))), MARK(x0))
   A__SEL(s(x0), cons(x1, sel(0, x3))) -> c3(A__SEL(mark(x0), a__sel(0, mark(x3))), MARK(x0))
   A__SEL(s(from(z0)), cons(x1, sel(x2, x3))) -> c3(A__SEL(a__from(mark(z0)), a__sel(mark(x2), mark(x3))), MARK(from(z0)))
   A__SEL(s(sel(z0, z1)), cons(x1, sel(x2, x3))) -> c3(A__SEL(a__sel(mark(z0), mark(z1)), a__sel(mark(x2), mark(x3))), MARK(sel(z0, z1)))
   A__SEL(s(s(z0)), cons(x1, sel(x2, x3))) -> c3(A__SEL(s(mark(z0)), a__sel(mark(x2), mark(x3))), MARK(s(z0)))
   A__SEL(s(x0), cons(x1, sel(x2, x3))) -> c3(MARK(x0))
   A__SEL(s(cons(z0, z1)), cons(x1, sel(x2, x3))) -> c3(MARK(cons(z0, z1)))
   A__SEL(s(0), cons(x1, sel(x2, x3))) -> c3(A__SEL(0, a__sel(mark(x2), mark(x3))))
   A__SEL(s(x0), cons(x1, cons(from(z0), x3))) -> c3(A__SEL(mark(x0), cons(a__from(mark(z0)), x3)), MARK(x0))
   A__SEL(s(x0), cons(x1, cons(sel(z0, z1), x3))) -> c3(A__SEL(mark(x0), cons(a__sel(mark(z0), mark(z1)), x3)), MARK(x0))
   A__SEL(s(x0), cons(x1, cons(cons(z0, z1), x3))) -> c3(A__SEL(mark(x0), cons(cons(mark(z0), z1), x3)), MARK(x0))
   A__SEL(s(x0), cons(x1, cons(s(z0), x3))) -> c3(A__SEL(mark(x0), cons(s(mark(z0)), x3)), MARK(x0))
   A__SEL(s(x0), cons(x1, cons(0, x3))) -> c3(A__SEL(mark(x0), cons(0, x3)), MARK(x0))
   A__SEL(s(from(z0)), cons(x1, cons(x2, x3))) -> c3(A__SEL(a__from(mark(z0)), cons(mark(x2), x3)), MARK(from(z0)))
   A__SEL(s(sel(z0, z1)), cons(x1, cons(x2, x3))) -> c3(A__SEL(a__sel(mark(z0), mark(z1)), cons(mark(x2), x3)), MARK(sel(z0, z1)))
   A__SEL(s(s(z0)), cons(x1, cons(x2, x3))) -> c3(A__SEL(s(mark(z0)), cons(mark(x2), x3)), MARK(s(z0)))
   A__SEL(s(cons(z0, z1)), cons(x1, cons(x2, x3))) -> c3(MARK(cons(z0, z1)))
   A__SEL(s(0), cons(x1, cons(x2, x3))) -> c3(A__SEL(0, cons(mark(x2), x3)))
   A__SEL(s(from(from(z0))), cons(x1, x2)) -> c3(A__SEL(a__from(a__from(mark(z0))), mark(x2)), MARK(from(from(z0))))
   A__SEL(s(from(sel(z0, z1))), cons(x1, x2)) -> c3(A__SEL(a__from(a__sel(mark(z0), mark(z1))), mark(x2)), MARK(from(sel(z0, z1))))
   A__SEL(s(from(cons(z0, z1))), cons(x1, x2)) -> c3(A__SEL(a__from(cons(mark(z0), z1)), mark(x2)), MARK(from(cons(z0, z1))))
   A__SEL(s(from(s(z0))), cons(x1, x2)) -> c3(A__SEL(a__from(s(mark(z0))), mark(x2)), MARK(from(s(z0))))
   A__SEL(s(from(0)), cons(x1, x2)) -> c3(A__SEL(a__from(0), mark(x2)), MARK(from(0)))
   A__SEL(s(from(x0)), cons(x1, x2)) -> c3(MARK(from(x0)))
   A__SEL(s(from(x0)), cons(x1, s(z0))) -> c3(MARK(from(x0)))
   A__SEL(s(from(x0)), cons(x1, 0)) -> c3(MARK(from(x0)))
   A__SEL(s(sel(x0, from(z0))), cons(x2, x3)) -> c3(A__SEL(a__sel(mark(x0), a__from(mark(z0))), mark(x3)), MARK(sel(x0, from(z0))))
   A__SEL(s(sel(x0, sel(z0, z1))), cons(x2, x3)) -> c3(A__SEL(a__sel(mark(x0), a__sel(mark(z0), mark(z1))), mark(x3)), MARK(sel(x0, sel(z0, z1))))
   A__SEL(s(sel(x0, cons(z0, z1))), cons(x2, x3)) -> c3(A__SEL(a__sel(mark(x0), cons(mark(z0), z1)), mark(x3)), MARK(sel(x0, cons(z0, z1))))
   A__SEL(s(sel(x0, s(z0))), cons(x2, x3)) -> c3(A__SEL(a__sel(mark(x0), s(mark(z0))), mark(x3)), MARK(sel(x0, s(z0))))
   A__SEL(s(sel(x0, 0)), cons(x2, x3)) -> c3(A__SEL(a__sel(mark(x0), 0), mark(x3)), MARK(sel(x0, 0)))
   A__SEL(s(sel(from(z0), x1)), cons(x2, x3)) -> c3(A__SEL(a__sel(a__from(mark(z0)), mark(x1)), mark(x3)), MARK(sel(from(z0), x1)))
   A__SEL(s(sel(sel(z0, z1), x1)), cons(x2, x3)) -> c3(A__SEL(a__sel(a__sel(mark(z0), mark(z1)), mark(x1)), mark(x3)), MARK(sel(sel(z0, z1), x1)))
   A__SEL(s(sel(cons(z0, z1), x1)), cons(x2, x3)) -> c3(A__SEL(a__sel(cons(mark(z0), z1), mark(x1)), mark(x3)), MARK(sel(cons(z0, z1), x1)))
   A__SEL(s(sel(s(z0), x1)), cons(x2, x3)) -> c3(A__SEL(a__sel(s(mark(z0)), mark(x1)), mark(x3)), MARK(sel(s(z0), x1)))
   A__SEL(s(sel(0, x1)), cons(x2, x3)) -> c3(A__SEL(a__sel(0, mark(x1)), mark(x3)), MARK(sel(0, x1)))
   A__SEL(s(sel(x0, x1)), cons(x2, s(z0))) -> c3(MARK(sel(x0, x1)))
   A__SEL(s(sel(x0, x1)), cons(x2, 0)) -> c3(MARK(sel(x0, x1)))
   A__SEL(s(sel(x0, x1)), cons(x2, x3)) -> c3(MARK(sel(x0, x1)))
   A__SEL(s(s(from(z0))), cons(x1, x2)) -> c3(A__SEL(s(a__from(mark(z0))), mark(x2)), MARK(s(from(z0))))
   A__SEL(s(s(sel(z0, z1))), cons(x1, x2)) -> c3(A__SEL(s(a__sel(mark(z0), mark(z1))), mark(x2)), MARK(s(sel(z0, z1))))
   A__SEL(s(s(cons(z0, z1))), cons(x1, x2)) -> c3(A__SEL(s(cons(mark(z0), z1)), mark(x2)), MARK(s(cons(z0, z1))))
   A__SEL(s(s(s(z0))), cons(x1, x2)) -> c3(A__SEL(s(s(mark(z0))), mark(x2)), MARK(s(s(z0))))
   A__SEL(s(s(0)), cons(x1, x2)) -> c3(A__SEL(s(0), mark(x2)), MARK(s(0)))
   A__SEL(s(s(x0)), cons(x1, x2)) -> c3(MARK(s(x0)))
   A__SEL(s(s(x0)), cons(x1, s(z0))) -> c3(MARK(s(x0)))
   A__SEL(s(s(x0)), cons(x1, 0)) -> c3(MARK(s(x0)))
   A__SEL(s(x0), cons(x1, from(x2))) -> c4(A__SEL(mark(x0), cons(mark(mark(x2)), from(s(mark(x2))))), MARK(from(x2)))
   A__SEL(s(x0), cons(x1, from(from(z0)))) -> c4(A__SEL(mark(x0), a__from(a__from(mark(z0)))), MARK(from(from(z0))))
   A__SEL(s(x0), cons(x1, from(sel(z0, z1)))) -> c4(A__SEL(mark(x0), a__from(a__sel(mark(z0), mark(z1)))), MARK(from(sel(z0, z1))))
   A__SEL(s(x0), cons(x1, from(cons(z0, z1)))) -> c4(A__SEL(mark(x0), a__from(cons(mark(z0), z1))), MARK(from(cons(z0, z1))))
   A__SEL(s(x0), cons(x1, from(s(z0)))) -> c4(A__SEL(mark(x0), a__from(s(mark(z0)))), MARK(from(s(z0))))
   A__SEL(s(x0), cons(x1, from(0))) -> c4(A__SEL(mark(x0), a__from(0)), MARK(from(0)))
   A__SEL(s(from(z0)), cons(x1, from(x2))) -> c4(A__SEL(a__from(mark(z0)), a__from(mark(x2))), MARK(from(x2)))
   A__SEL(s(sel(z0, z1)), cons(x1, from(x2))) -> c4(A__SEL(a__sel(mark(z0), mark(z1)), a__from(mark(x2))), MARK(from(x2)))
   A__SEL(s(s(z0)), cons(x1, from(x2))) -> c4(A__SEL(s(mark(z0)), a__from(mark(x2))), MARK(from(x2)))
   A__SEL(s(0), cons(x1, from(x2))) -> c4(A__SEL(0, a__from(mark(x2))), MARK(from(x2)))
   A__SEL(s(x0), cons(x1, from(x2))) -> c4(MARK(from(x2)))
   A__SEL(s(cons(z0, z1)), cons(x1, from(x2))) -> c4(MARK(from(x2)))
   A__SEL(s(x0), cons(x1, sel(x2, from(z0)))) -> c4(A__SEL(mark(x0), a__sel(mark(x2), a__from(mark(z0)))), MARK(sel(x2, from(z0))))
   A__SEL(s(x0), cons(x1, sel(x2, sel(z0, z1)))) -> c4(A__SEL(mark(x0), a__sel(mark(x2), a__sel(mark(z0), mark(z1)))), MARK(sel(x2, sel(z0, z1))))
   A__SEL(s(x0), cons(x1, sel(x2, cons(z0, z1)))) -> c4(A__SEL(mark(x0), a__sel(mark(x2), cons(mark(z0), z1))), MARK(sel(x2, cons(z0, z1))))
   A__SEL(s(x0), cons(x1, sel(x2, s(z0)))) -> c4(A__SEL(mark(x0), a__sel(mark(x2), s(mark(z0)))), MARK(sel(x2, s(z0))))
   A__SEL(s(x0), cons(x1, sel(x2, 0))) -> c4(A__SEL(mark(x0), a__sel(mark(x2), 0)), MARK(sel(x2, 0)))
   A__SEL(s(x0), cons(x1, sel(from(z0), x3))) -> c4(A__SEL(mark(x0), a__sel(a__from(mark(z0)), mark(x3))), MARK(sel(from(z0), x3)))
   A__SEL(s(x0), cons(x1, sel(sel(z0, z1), x3))) -> c4(A__SEL(mark(x0), a__sel(a__sel(mark(z0), mark(z1)), mark(x3))), MARK(sel(sel(z0, z1), x3)))
   A__SEL(s(x0), cons(x1, sel(cons(z0, z1), x3))) -> c4(A__SEL(mark(x0), a__sel(cons(mark(z0), z1), mark(x3))), MARK(sel(cons(z0, z1), x3)))
   A__SEL(s(x0), cons(x1, sel(s(z0), x3))) -> c4(A__SEL(mark(x0), a__sel(s(mark(z0)), mark(x3))), MARK(sel(s(z0), x3)))
   A__SEL(s(x0), cons(x1, sel(0, x3))) -> c4(A__SEL(mark(x0), a__sel(0, mark(x3))), MARK(sel(0, x3)))
   A__SEL(s(from(z0)), cons(x1, sel(x2, x3))) -> c4(A__SEL(a__from(mark(z0)), a__sel(mark(x2), mark(x3))), MARK(sel(x2, x3)))
   A__SEL(s(sel(z0, z1)), cons(x1, sel(x2, x3))) -> c4(A__SEL(a__sel(mark(z0), mark(z1)), a__sel(mark(x2), mark(x3))), MARK(sel(x2, x3)))
   A__SEL(s(s(z0)), cons(x1, sel(x2, x3))) -> c4(A__SEL(s(mark(z0)), a__sel(mark(x2), mark(x3))), MARK(sel(x2, x3)))
   A__SEL(s(0), cons(x1, sel(x2, x3))) -> c4(A__SEL(0, a__sel(mark(x2), mark(x3))), MARK(sel(x2, x3)))
   A__SEL(s(x0), cons(x1, sel(x2, x3))) -> c4(MARK(sel(x2, x3)))
   A__SEL(s(cons(z0, z1)), cons(x1, sel(x2, x3))) -> c4(MARK(sel(x2, x3)))
   A__SEL(s(x0), cons(x1, cons(from(z0), x3))) -> c4(A__SEL(mark(x0), cons(a__from(mark(z0)), x3)), MARK(cons(from(z0), x3)))
   A__SEL(s(x0), cons(x1, cons(sel(z0, z1), x3))) -> c4(A__SEL(mark(x0), cons(a__sel(mark(z0), mark(z1)), x3)), MARK(cons(sel(z0, z1), x3)))
   A__SEL(s(x0), cons(x1, cons(cons(z0, z1), x3))) -> c4(A__SEL(mark(x0), cons(cons(mark(z0), z1), x3)), MARK(cons(cons(z0, z1), x3)))
   A__SEL(s(x0), cons(x1, cons(s(z0), x3))) -> c4(A__SEL(mark(x0), cons(s(mark(z0)), x3)), MARK(cons(s(z0), x3)))
   A__SEL(s(x0), cons(x1, cons(0, x3))) -> c4(A__SEL(mark(x0), cons(0, x3)), MARK(cons(0, x3)))
   A__SEL(s(from(z0)), cons(x1, cons(x2, x3))) -> c4(A__SEL(a__from(mark(z0)), cons(mark(x2), x3)), MARK(cons(x2, x3)))
   A__SEL(s(sel(z0, z1)), cons(x1, cons(x2, x3))) -> c4(A__SEL(a__sel(mark(z0), mark(z1)), cons(mark(x2), x3)), MARK(cons(x2, x3)))
   A__SEL(s(s(z0)), cons(x1, cons(x2, x3))) -> c4(A__SEL(s(mark(z0)), cons(mark(x2), x3)), MARK(cons(x2, x3)))
   A__SEL(s(0), cons(x1, cons(x2, x3))) -> c4(A__SEL(0, cons(mark(x2), x3)), MARK(cons(x2, x3)))
   A__SEL(s(x0), cons(x1, cons(x2, x3))) -> c4(MARK(cons(x2, x3)))
   A__SEL(s(cons(z0, z1)), cons(x1, cons(x2, x3))) -> c4(MARK(cons(x2, x3)))
   A__SEL(s(from(from(z0))), cons(x1, x2)) -> c4(A__SEL(a__from(a__from(mark(z0))), mark(x2)), MARK(x2))
   A__SEL(s(from(sel(z0, z1))), cons(x1, x2)) -> c4(A__SEL(a__from(a__sel(mark(z0), mark(z1))), mark(x2)), MARK(x2))
   A__SEL(s(from(cons(z0, z1))), cons(x1, x2)) -> c4(A__SEL(a__from(cons(mark(z0), z1)), mark(x2)), MARK(x2))
   A__SEL(s(from(s(z0))), cons(x1, x2)) -> c4(A__SEL(a__from(s(mark(z0))), mark(x2)), MARK(x2))
   A__SEL(s(from(0)), cons(x1, x2)) -> c4(A__SEL(a__from(0), mark(x2)), MARK(x2))
   A__SEL(s(from(x0)), cons(x1, s(z0))) -> c4(MARK(s(z0)))
   A__SEL(s(from(x0)), cons(x1, x2)) -> c4(MARK(x2))
   A__SEL(s(sel(x0, from(z0))), cons(x2, x3)) -> c4(A__SEL(a__sel(mark(x0), a__from(mark(z0))), mark(x3)), MARK(x3))
   A__SEL(s(sel(x0, sel(z0, z1))), cons(x2, x3)) -> c4(A__SEL(a__sel(mark(x0), a__sel(mark(z0), mark(z1))), mark(x3)), MARK(x3))
   A__SEL(s(sel(x0, cons(z0, z1))), cons(x2, x3)) -> c4(A__SEL(a__sel(mark(x0), cons(mark(z0), z1)), mark(x3)), MARK(x3))
   A__SEL(s(sel(x0, s(z0))), cons(x2, x3)) -> c4(A__SEL(a__sel(mark(x0), s(mark(z0))), mark(x3)), MARK(x3))
   A__SEL(s(sel(x0, 0)), cons(x2, x3)) -> c4(A__SEL(a__sel(mark(x0), 0), mark(x3)), MARK(x3))
   A__SEL(s(sel(from(z0), x1)), cons(x2, x3)) -> c4(A__SEL(a__sel(a__from(mark(z0)), mark(x1)), mark(x3)), MARK(x3))
   A__SEL(s(sel(sel(z0, z1), x1)), cons(x2, x3)) -> c4(A__SEL(a__sel(a__sel(mark(z0), mark(z1)), mark(x1)), mark(x3)), MARK(x3))
   A__SEL(s(sel(cons(z0, z1), x1)), cons(x2, x3)) -> c4(A__SEL(a__sel(cons(mark(z0), z1), mark(x1)), mark(x3)), MARK(x3))
   A__SEL(s(sel(s(z0), x1)), cons(x2, x3)) -> c4(A__SEL(a__sel(s(mark(z0)), mark(x1)), mark(x3)), MARK(x3))
   A__SEL(s(sel(0, x1)), cons(x2, x3)) -> c4(A__SEL(a__sel(0, mark(x1)), mark(x3)), MARK(x3))
   A__SEL(s(sel(x0, x1)), cons(x2, s(z0))) -> c4(MARK(s(z0)))
   A__SEL(s(sel(x0, x1)), cons(x2, x3)) -> c4(MARK(x3))
   A__SEL(s(s(from(z0))), cons(x1, x2)) -> c4(A__SEL(s(a__from(mark(z0))), mark(x2)), MARK(x2))
   A__SEL(s(s(sel(z0, z1))), cons(x1, x2)) -> c4(A__SEL(s(a__sel(mark(z0), mark(z1))), mark(x2)), MARK(x2))
   A__SEL(s(s(cons(z0, z1))), cons(x1, x2)) -> c4(A__SEL(s(cons(mark(z0), z1)), mark(x2)), MARK(x2))
   A__SEL(s(s(s(z0))), cons(x1, x2)) -> c4(A__SEL(s(s(mark(z0))), mark(x2)), MARK(x2))
   A__SEL(s(s(0)), cons(x1, x2)) -> c4(A__SEL(s(0), mark(x2)), MARK(x2))
   A__SEL(s(s(x0)), cons(x1, s(z0))) -> c4(MARK(s(z0)))
   A__SEL(s(0), cons(x0, s(z0))) -> c4(MARK(s(z0)))
   MARK(sel(x0, from(x1))) -> c7(A__SEL(mark(x0), cons(mark(mark(x1)), from(s(mark(x1))))), MARK(x0))
   MARK(sel(x0, from(from(z0)))) -> c7(A__SEL(mark(x0), a__from(a__from(mark(z0)))), MARK(x0))
   MARK(sel(x0, from(sel(z0, z1)))) -> c7(A__SEL(mark(x0), a__from(a__sel(mark(z0), mark(z1)))), MARK(x0))
   MARK(sel(x0, from(cons(z0, z1)))) -> c7(A__SEL(mark(x0), a__from(cons(mark(z0), z1))), MARK(x0))
   MARK(sel(x0, from(s(z0)))) -> c7(A__SEL(mark(x0), a__from(s(mark(z0)))), MARK(x0))
   MARK(sel(x0, from(0))) -> c7(A__SEL(mark(x0), a__from(0)), MARK(x0))
   MARK(sel(from(z0), from(x1))) -> c7(A__SEL(a__from(mark(z0)), a__from(mark(x1))), MARK(from(z0)))
   MARK(sel(sel(z0, z1), from(x1))) -> c7(A__SEL(a__sel(mark(z0), mark(z1)), a__from(mark(x1))), MARK(sel(z0, z1)))
   MARK(sel(s(z0), from(x1))) -> c7(A__SEL(s(mark(z0)), a__from(mark(x1))), MARK(s(z0)))
   MARK(sel(x0, from(x1))) -> c7(MARK(x0))
   MARK(sel(cons(z0, z1), from(x1))) -> c7(MARK(cons(z0, z1)))
   MARK(sel(0, from(x1))) -> c7(A__SEL(0, a__from(mark(x1))))
   MARK(sel(x0, sel(x1, from(z0)))) -> c7(A__SEL(mark(x0), a__sel(mark(x1), a__from(mark(z0)))), MARK(x0))
   MARK(sel(x0, sel(x1, sel(z0, z1)))) -> c7(A__SEL(mark(x0), a__sel(mark(x1), a__sel(mark(z0), mark(z1)))), MARK(x0))
   MARK(sel(x0, sel(x1, cons(z0, z1)))) -> c7(A__SEL(mark(x0), a__sel(mark(x1), cons(mark(z0), z1))), MARK(x0))
   MARK(sel(x0, sel(x1, s(z0)))) -> c7(A__SEL(mark(x0), a__sel(mark(x1), s(mark(z0)))), MARK(x0))
   MARK(sel(x0, sel(x1, 0))) -> c7(A__SEL(mark(x0), a__sel(mark(x1), 0)), MARK(x0))
   MARK(sel(x0, sel(from(z0), x2))) -> c7(A__SEL(mark(x0), a__sel(a__from(mark(z0)), mark(x2))), MARK(x0))
   MARK(sel(x0, sel(sel(z0, z1), x2))) -> c7(A__SEL(mark(x0), a__sel(a__sel(mark(z0), mark(z1)), mark(x2))), MARK(x0))
   MARK(sel(x0, sel(cons(z0, z1), x2))) -> c7(A__SEL(mark(x0), a__sel(cons(mark(z0), z1), mark(x2))), MARK(x0))
   MARK(sel(x0, sel(s(z0), x2))) -> c7(A__SEL(mark(x0), a__sel(s(mark(z0)), mark(x2))), MARK(x0))
   MARK(sel(x0, sel(0, x2))) -> c7(A__SEL(mark(x0), a__sel(0, mark(x2))), MARK(x0))
   MARK(sel(from(z0), sel(x1, x2))) -> c7(A__SEL(a__from(mark(z0)), a__sel(mark(x1), mark(x2))), MARK(from(z0)))
   MARK(sel(sel(z0, z1), sel(x1, x2))) -> c7(A__SEL(a__sel(mark(z0), mark(z1)), a__sel(mark(x1), mark(x2))), MARK(sel(z0, z1)))
   MARK(sel(s(z0), sel(x1, x2))) -> c7(A__SEL(s(mark(z0)), a__sel(mark(x1), mark(x2))), MARK(s(z0)))
   MARK(sel(x0, sel(x1, x2))) -> c7(MARK(x0))
   MARK(sel(cons(z0, z1), sel(x1, x2))) -> c7(MARK(cons(z0, z1)))
   MARK(sel(0, sel(x1, x2))) -> c7(A__SEL(0, a__sel(mark(x1), mark(x2))))
   MARK(sel(x0, cons(from(z0), x2))) -> c7(A__SEL(mark(x0), cons(a__from(mark(z0)), x2)), MARK(x0))
   MARK(sel(x0, cons(sel(z0, z1), x2))) -> c7(A__SEL(mark(x0), cons(a__sel(mark(z0), mark(z1)), x2)), MARK(x0))
   MARK(sel(x0, cons(cons(z0, z1), x2))) -> c7(A__SEL(mark(x0), cons(cons(mark(z0), z1), x2)), MARK(x0))
   MARK(sel(x0, cons(s(z0), x2))) -> c7(A__SEL(mark(x0), cons(s(mark(z0)), x2)), MARK(x0))
   MARK(sel(x0, cons(0, x2))) -> c7(A__SEL(mark(x0), cons(0, x2)), MARK(x0))
   MARK(sel(from(z0), cons(x1, x2))) -> c7(A__SEL(a__from(mark(z0)), cons(mark(x1), x2)), MARK(from(z0)))
   MARK(sel(sel(z0, z1), cons(x1, x2))) -> c7(A__SEL(a__sel(mark(z0), mark(z1)), cons(mark(x1), x2)), MARK(sel(z0, z1)))
   MARK(sel(s(z0), cons(x1, x2))) -> c7(A__SEL(s(mark(z0)), cons(mark(x1), x2)), MARK(s(z0)))
   MARK(sel(cons(z0, z1), cons(x1, x2))) -> c7(MARK(cons(z0, z1)))
   MARK(sel(0, cons(x1, x2))) -> c7(A__SEL(0, cons(mark(x1), x2)))
   MARK(sel(from(from(z0)), x1)) -> c7(A__SEL(a__from(a__from(mark(z0))), mark(x1)), MARK(from(from(z0))))
   MARK(sel(from(sel(z0, z1)), x1)) -> c7(A__SEL(a__from(a__sel(mark(z0), mark(z1))), mark(x1)), MARK(from(sel(z0, z1))))
   MARK(sel(from(cons(z0, z1)), x1)) -> c7(A__SEL(a__from(cons(mark(z0), z1)), mark(x1)), MARK(from(cons(z0, z1))))
   MARK(sel(from(s(z0)), x1)) -> c7(A__SEL(a__from(s(mark(z0))), mark(x1)), MARK(from(s(z0))))
   MARK(sel(from(0), x1)) -> c7(A__SEL(a__from(0), mark(x1)), MARK(from(0)))
   MARK(sel(from(x0), x1)) -> c7(MARK(from(x0)))
   MARK(sel(from(x0), s(z0))) -> c7(MARK(from(x0)))
   MARK(sel(from(x0), 0)) -> c7(MARK(from(x0)))
   MARK(sel(sel(x0, from(z0)), x2)) -> c7(A__SEL(a__sel(mark(x0), a__from(mark(z0))), mark(x2)), MARK(sel(x0, from(z0))))
   MARK(sel(sel(x0, sel(z0, z1)), x2)) -> c7(A__SEL(a__sel(mark(x0), a__sel(mark(z0), mark(z1))), mark(x2)), MARK(sel(x0, sel(z0, z1))))
   MARK(sel(sel(x0, cons(z0, z1)), x2)) -> c7(A__SEL(a__sel(mark(x0), cons(mark(z0), z1)), mark(x2)), MARK(sel(x0, cons(z0, z1))))
   MARK(sel(sel(x0, s(z0)), x2)) -> c7(A__SEL(a__sel(mark(x0), s(mark(z0))), mark(x2)), MARK(sel(x0, s(z0))))
   MARK(sel(sel(x0, 0), x2)) -> c7(A__SEL(a__sel(mark(x0), 0), mark(x2)), MARK(sel(x0, 0)))
   MARK(sel(sel(from(z0), x1), x2)) -> c7(A__SEL(a__sel(a__from(mark(z0)), mark(x1)), mark(x2)), MARK(sel(from(z0), x1)))
   MARK(sel(sel(sel(z0, z1), x1), x2)) -> c7(A__SEL(a__sel(a__sel(mark(z0), mark(z1)), mark(x1)), mark(x2)), MARK(sel(sel(z0, z1), x1)))
   MARK(sel(sel(cons(z0, z1), x1), x2)) -> c7(A__SEL(a__sel(cons(mark(z0), z1), mark(x1)), mark(x2)), MARK(sel(cons(z0, z1), x1)))
   MARK(sel(sel(s(z0), x1), x2)) -> c7(A__SEL(a__sel(s(mark(z0)), mark(x1)), mark(x2)), MARK(sel(s(z0), x1)))
   MARK(sel(sel(0, x1), x2)) -> c7(A__SEL(a__sel(0, mark(x1)), mark(x2)), MARK(sel(0, x1)))
   MARK(sel(sel(x0, x1), s(z0))) -> c7(MARK(sel(x0, x1)))
   MARK(sel(sel(x0, x1), 0)) -> c7(MARK(sel(x0, x1)))
   MARK(sel(sel(x0, x1), x2)) -> c7(MARK(sel(x0, x1)))
   MARK(sel(s(from(z0)), x1)) -> c7(A__SEL(s(a__from(mark(z0))), mark(x1)), MARK(s(from(z0))))
   MARK(sel(s(sel(z0, z1)), x1)) -> c7(A__SEL(s(a__sel(mark(z0), mark(z1))), mark(x1)), MARK(s(sel(z0, z1))))
   MARK(sel(s(cons(z0, z1)), x1)) -> c7(A__SEL(s(cons(mark(z0), z1)), mark(x1)), MARK(s(cons(z0, z1))))
   MARK(sel(s(s(z0)), x1)) -> c7(A__SEL(s(s(mark(z0))), mark(x1)), MARK(s(s(z0))))
   MARK(sel(s(0), x1)) -> c7(A__SEL(s(0), mark(x1)), MARK(s(0)))
   MARK(sel(s(x0), x1)) -> c7(MARK(s(x0)))
   MARK(sel(s(x0), s(z0))) -> c7(MARK(s(x0)))
   MARK(sel(s(x0), 0)) -> c7(MARK(s(x0)))
   MARK(sel(0, s(z0))) -> c7(A__SEL(0, s(mark(z0))))
   MARK(sel(0, 0)) -> c7(A__SEL(0, 0))
K tuples:none
Defined Rule Symbols:   a__from_1, a__sel_2, mark_1

Defined Pair Symbols:   A__FROM_1, A__SEL_2, MARK_1

Compound Symbols:   c_1, c2_1, c6_2, c9_1, c10_1, c3_1, c4_1, c7_1, c8_2, c8_1, c3_2, c4_2, c7_2


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

(167) CdtLeafRemovalProof (BOTH BOUNDS(ID, ID))
Removed 2 trailing nodes:
   MARK(sel(0, 0)) -> c7(A__SEL(0, 0))
   MARK(sel(0, s(z0))) -> c7(A__SEL(0, s(mark(z0))))

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

(168)
Obligation:
Complexity Dependency Tuples Problem

Rules:
   a__from(z0) -> cons(mark(z0), from(s(z0)))
   a__from(z0) -> from(z0)
   a__sel(0, cons(z0, z1)) -> mark(z0)
   a__sel(s(z0), cons(z1, z2)) -> a__sel(mark(z0), mark(z2))
   a__sel(z0, z1) -> sel(z0, z1)
   mark(from(z0)) -> a__from(mark(z0))
   mark(sel(z0, z1)) -> a__sel(mark(z0), mark(z1))
   mark(cons(z0, z1)) -> cons(mark(z0), z1)
   mark(s(z0)) -> s(mark(z0))
   mark(0) -> 0
Tuples:
   A__FROM(z0) -> c(MARK(z0))
   A__SEL(0, cons(z0, z1)) -> c2(MARK(z0))
   MARK(from(z0)) -> c6(A__FROM(mark(z0)), MARK(z0))
   MARK(cons(z0, z1)) -> c9(MARK(z0))
   MARK(s(z0)) -> c10(MARK(z0))
   A__SEL(s(x0), cons(x1, s(z0))) -> c3(MARK(x0))
   A__SEL(s(x0), cons(x1, 0)) -> c3(MARK(x0))
   A__SEL(s(cons(z0, z1)), cons(x1, x2)) -> c3(MARK(cons(z0, z1)))
   A__SEL(s(x0), cons(x1, s(z0))) -> c4(MARK(s(z0)))
   A__SEL(s(cons(z0, z1)), cons(x1, x2)) -> c4(MARK(x2))
   MARK(sel(x0, s(z0))) -> c7(MARK(x0))
   MARK(sel(x0, 0)) -> c7(MARK(x0))
   MARK(sel(cons(z0, z1), x1)) -> c7(MARK(cons(z0, z1)))
   MARK(sel(x0, from(z0))) -> c8(A__SEL(mark(x0), a__from(mark(z0))), MARK(from(z0)))
   MARK(sel(x0, sel(z0, z1))) -> c8(A__SEL(mark(x0), a__sel(mark(z0), mark(z1))), MARK(sel(z0, z1)))
   MARK(sel(x0, cons(z0, z1))) -> c8(A__SEL(mark(x0), cons(mark(z0), z1)), MARK(cons(z0, z1)))
   MARK(sel(from(z0), x1)) -> c8(A__SEL(a__from(mark(z0)), mark(x1)), MARK(x1))
   MARK(sel(sel(z0, z1), x1)) -> c8(A__SEL(a__sel(mark(z0), mark(z1)), mark(x1)), MARK(x1))
   MARK(sel(s(z0), x1)) -> c8(A__SEL(s(mark(z0)), mark(x1)), MARK(x1))
   MARK(sel(0, x1)) -> c8(A__SEL(0, mark(x1)), MARK(x1))
   MARK(sel(x0, s(z0))) -> c8(MARK(s(z0)))
   MARK(sel(cons(z0, z1), x1)) -> c8(MARK(x1))
   A__SEL(s(x0), cons(x1, from(x2))) -> c3(A__SEL(mark(x0), cons(mark(mark(x2)), from(s(mark(x2))))), MARK(x0))
   A__SEL(s(x0), cons(x1, from(from(z0)))) -> c3(A__SEL(mark(x0), a__from(a__from(mark(z0)))), MARK(x0))
   A__SEL(s(x0), cons(x1, from(sel(z0, z1)))) -> c3(A__SEL(mark(x0), a__from(a__sel(mark(z0), mark(z1)))), MARK(x0))
   A__SEL(s(x0), cons(x1, from(cons(z0, z1)))) -> c3(A__SEL(mark(x0), a__from(cons(mark(z0), z1))), MARK(x0))
   A__SEL(s(x0), cons(x1, from(s(z0)))) -> c3(A__SEL(mark(x0), a__from(s(mark(z0)))), MARK(x0))
   A__SEL(s(x0), cons(x1, from(0))) -> c3(A__SEL(mark(x0), a__from(0)), MARK(x0))
   A__SEL(s(from(z0)), cons(x1, from(x2))) -> c3(A__SEL(a__from(mark(z0)), a__from(mark(x2))), MARK(from(z0)))
   A__SEL(s(sel(z0, z1)), cons(x1, from(x2))) -> c3(A__SEL(a__sel(mark(z0), mark(z1)), a__from(mark(x2))), MARK(sel(z0, z1)))
   A__SEL(s(s(z0)), cons(x1, from(x2))) -> c3(A__SEL(s(mark(z0)), a__from(mark(x2))), MARK(s(z0)))
   A__SEL(s(x0), cons(x1, from(x2))) -> c3(MARK(x0))
   A__SEL(s(cons(z0, z1)), cons(x1, from(x2))) -> c3(MARK(cons(z0, z1)))
   A__SEL(s(0), cons(x1, from(x2))) -> c3(A__SEL(0, a__from(mark(x2))))
   A__SEL(s(x0), cons(x1, sel(x2, from(z0)))) -> c3(A__SEL(mark(x0), a__sel(mark(x2), a__from(mark(z0)))), MARK(x0))
   A__SEL(s(x0), cons(x1, sel(x2, sel(z0, z1)))) -> c3(A__SEL(mark(x0), a__sel(mark(x2), a__sel(mark(z0), mark(z1)))), MARK(x0))
   A__SEL(s(x0), cons(x1, sel(x2, cons(z0, z1)))) -> c3(A__SEL(mark(x0), a__sel(mark(x2), cons(mark(z0), z1))), MARK(x0))
   A__SEL(s(x0), cons(x1, sel(x2, s(z0)))) -> c3(A__SEL(mark(x0), a__sel(mark(x2), s(mark(z0)))), MARK(x0))
   A__SEL(s(x0), cons(x1, sel(x2, 0))) -> c3(A__SEL(mark(x0), a__sel(mark(x2), 0)), MARK(x0))
   A__SEL(s(x0), cons(x1, sel(from(z0), x3))) -> c3(A__SEL(mark(x0), a__sel(a__from(mark(z0)), mark(x3))), MARK(x0))
   A__SEL(s(x0), cons(x1, sel(sel(z0, z1), x3))) -> c3(A__SEL(mark(x0), a__sel(a__sel(mark(z0), mark(z1)), mark(x3))), MARK(x0))
   A__SEL(s(x0), cons(x1, sel(cons(z0, z1), x3))) -> c3(A__SEL(mark(x0), a__sel(cons(mark(z0), z1), mark(x3))), MARK(x0))
   A__SEL(s(x0), cons(x1, sel(s(z0), x3))) -> c3(A__SEL(mark(x0), a__sel(s(mark(z0)), mark(x3))), MARK(x0))
   A__SEL(s(x0), cons(x1, sel(0, x3))) -> c3(A__SEL(mark(x0), a__sel(0, mark(x3))), MARK(x0))
   A__SEL(s(from(z0)), cons(x1, sel(x2, x3))) -> c3(A__SEL(a__from(mark(z0)), a__sel(mark(x2), mark(x3))), MARK(from(z0)))
   A__SEL(s(sel(z0, z1)), cons(x1, sel(x2, x3))) -> c3(A__SEL(a__sel(mark(z0), mark(z1)), a__sel(mark(x2), mark(x3))), MARK(sel(z0, z1)))
   A__SEL(s(s(z0)), cons(x1, sel(x2, x3))) -> c3(A__SEL(s(mark(z0)), a__sel(mark(x2), mark(x3))), MARK(s(z0)))
   A__SEL(s(x0), cons(x1, sel(x2, x3))) -> c3(MARK(x0))
   A__SEL(s(cons(z0, z1)), cons(x1, sel(x2, x3))) -> c3(MARK(cons(z0, z1)))
   A__SEL(s(0), cons(x1, sel(x2, x3))) -> c3(A__SEL(0, a__sel(mark(x2), mark(x3))))
   A__SEL(s(x0), cons(x1, cons(from(z0), x3))) -> c3(A__SEL(mark(x0), cons(a__from(mark(z0)), x3)), MARK(x0))
   A__SEL(s(x0), cons(x1, cons(sel(z0, z1), x3))) -> c3(A__SEL(mark(x0), cons(a__sel(mark(z0), mark(z1)), x3)), MARK(x0))
   A__SEL(s(x0), cons(x1, cons(cons(z0, z1), x3))) -> c3(A__SEL(mark(x0), cons(cons(mark(z0), z1), x3)), MARK(x0))
   A__SEL(s(x0), cons(x1, cons(s(z0), x3))) -> c3(A__SEL(mark(x0), cons(s(mark(z0)), x3)), MARK(x0))
   A__SEL(s(x0), cons(x1, cons(0, x3))) -> c3(A__SEL(mark(x0), cons(0, x3)), MARK(x0))
   A__SEL(s(from(z0)), cons(x1, cons(x2, x3))) -> c3(A__SEL(a__from(mark(z0)), cons(mark(x2), x3)), MARK(from(z0)))
   A__SEL(s(sel(z0, z1)), cons(x1, cons(x2, x3))) -> c3(A__SEL(a__sel(mark(z0), mark(z1)), cons(mark(x2), x3)), MARK(sel(z0, z1)))
   A__SEL(s(s(z0)), cons(x1, cons(x2, x3))) -> c3(A__SEL(s(mark(z0)), cons(mark(x2), x3)), MARK(s(z0)))
   A__SEL(s(cons(z0, z1)), cons(x1, cons(x2, x3))) -> c3(MARK(cons(z0, z1)))
   A__SEL(s(0), cons(x1, cons(x2, x3))) -> c3(A__SEL(0, cons(mark(x2), x3)))
   A__SEL(s(from(from(z0))), cons(x1, x2)) -> c3(A__SEL(a__from(a__from(mark(z0))), mark(x2)), MARK(from(from(z0))))
   A__SEL(s(from(sel(z0, z1))), cons(x1, x2)) -> c3(A__SEL(a__from(a__sel(mark(z0), mark(z1))), mark(x2)), MARK(from(sel(z0, z1))))
   A__SEL(s(from(cons(z0, z1))), cons(x1, x2)) -> c3(A__SEL(a__from(cons(mark(z0), z1)), mark(x2)), MARK(from(cons(z0, z1))))
   A__SEL(s(from(s(z0))), cons(x1, x2)) -> c3(A__SEL(a__from(s(mark(z0))), mark(x2)), MARK(from(s(z0))))
   A__SEL(s(from(0)), cons(x1, x2)) -> c3(A__SEL(a__from(0), mark(x2)), MARK(from(0)))
   A__SEL(s(from(x0)), cons(x1, x2)) -> c3(MARK(from(x0)))
   A__SEL(s(from(x0)), cons(x1, s(z0))) -> c3(MARK(from(x0)))
   A__SEL(s(from(x0)), cons(x1, 0)) -> c3(MARK(from(x0)))
   A__SEL(s(sel(x0, from(z0))), cons(x2, x3)) -> c3(A__SEL(a__sel(mark(x0), a__from(mark(z0))), mark(x3)), MARK(sel(x0, from(z0))))
   A__SEL(s(sel(x0, sel(z0, z1))), cons(x2, x3)) -> c3(A__SEL(a__sel(mark(x0), a__sel(mark(z0), mark(z1))), mark(x3)), MARK(sel(x0, sel(z0, z1))))
   A__SEL(s(sel(x0, cons(z0, z1))), cons(x2, x3)) -> c3(A__SEL(a__sel(mark(x0), cons(mark(z0), z1)), mark(x3)), MARK(sel(x0, cons(z0, z1))))
   A__SEL(s(sel(x0, s(z0))), cons(x2, x3)) -> c3(A__SEL(a__sel(mark(x0), s(mark(z0))), mark(x3)), MARK(sel(x0, s(z0))))
   A__SEL(s(sel(x0, 0)), cons(x2, x3)) -> c3(A__SEL(a__sel(mark(x0), 0), mark(x3)), MARK(sel(x0, 0)))
   A__SEL(s(sel(from(z0), x1)), cons(x2, x3)) -> c3(A__SEL(a__sel(a__from(mark(z0)), mark(x1)), mark(x3)), MARK(sel(from(z0), x1)))
   A__SEL(s(sel(sel(z0, z1), x1)), cons(x2, x3)) -> c3(A__SEL(a__sel(a__sel(mark(z0), mark(z1)), mark(x1)), mark(x3)), MARK(sel(sel(z0, z1), x1)))
   A__SEL(s(sel(cons(z0, z1), x1)), cons(x2, x3)) -> c3(A__SEL(a__sel(cons(mark(z0), z1), mark(x1)), mark(x3)), MARK(sel(cons(z0, z1), x1)))
   A__SEL(s(sel(s(z0), x1)), cons(x2, x3)) -> c3(A__SEL(a__sel(s(mark(z0)), mark(x1)), mark(x3)), MARK(sel(s(z0), x1)))
   A__SEL(s(sel(0, x1)), cons(x2, x3)) -> c3(A__SEL(a__sel(0, mark(x1)), mark(x3)), MARK(sel(0, x1)))
   A__SEL(s(sel(x0, x1)), cons(x2, s(z0))) -> c3(MARK(sel(x0, x1)))
   A__SEL(s(sel(x0, x1)), cons(x2, 0)) -> c3(MARK(sel(x0, x1)))
   A__SEL(s(sel(x0, x1)), cons(x2, x3)) -> c3(MARK(sel(x0, x1)))
   A__SEL(s(s(from(z0))), cons(x1, x2)) -> c3(A__SEL(s(a__from(mark(z0))), mark(x2)), MARK(s(from(z0))))
   A__SEL(s(s(sel(z0, z1))), cons(x1, x2)) -> c3(A__SEL(s(a__sel(mark(z0), mark(z1))), mark(x2)), MARK(s(sel(z0, z1))))
   A__SEL(s(s(cons(z0, z1))), cons(x1, x2)) -> c3(A__SEL(s(cons(mark(z0), z1)), mark(x2)), MARK(s(cons(z0, z1))))
   A__SEL(s(s(s(z0))), cons(x1, x2)) -> c3(A__SEL(s(s(mark(z0))), mark(x2)), MARK(s(s(z0))))
   A__SEL(s(s(0)), cons(x1, x2)) -> c3(A__SEL(s(0), mark(x2)), MARK(s(0)))
   A__SEL(s(s(x0)), cons(x1, x2)) -> c3(MARK(s(x0)))
   A__SEL(s(s(x0)), cons(x1, s(z0))) -> c3(MARK(s(x0)))
   A__SEL(s(s(x0)), cons(x1, 0)) -> c3(MARK(s(x0)))
   A__SEL(s(x0), cons(x1, from(x2))) -> c4(A__SEL(mark(x0), cons(mark(mark(x2)), from(s(mark(x2))))), MARK(from(x2)))
   A__SEL(s(x0), cons(x1, from(from(z0)))) -> c4(A__SEL(mark(x0), a__from(a__from(mark(z0)))), MARK(from(from(z0))))
   A__SEL(s(x0), cons(x1, from(sel(z0, z1)))) -> c4(A__SEL(mark(x0), a__from(a__sel(mark(z0), mark(z1)))), MARK(from(sel(z0, z1))))
   A__SEL(s(x0), cons(x1, from(cons(z0, z1)))) -> c4(A__SEL(mark(x0), a__from(cons(mark(z0), z1))), MARK(from(cons(z0, z1))))
   A__SEL(s(x0), cons(x1, from(s(z0)))) -> c4(A__SEL(mark(x0), a__from(s(mark(z0)))), MARK(from(s(z0))))
   A__SEL(s(x0), cons(x1, from(0))) -> c4(A__SEL(mark(x0), a__from(0)), MARK(from(0)))
   A__SEL(s(from(z0)), cons(x1, from(x2))) -> c4(A__SEL(a__from(mark(z0)), a__from(mark(x2))), MARK(from(x2)))
   A__SEL(s(sel(z0, z1)), cons(x1, from(x2))) -> c4(A__SEL(a__sel(mark(z0), mark(z1)), a__from(mark(x2))), MARK(from(x2)))
   A__SEL(s(s(z0)), cons(x1, from(x2))) -> c4(A__SEL(s(mark(z0)), a__from(mark(x2))), MARK(from(x2)))
   A__SEL(s(0), cons(x1, from(x2))) -> c4(A__SEL(0, a__from(mark(x2))), MARK(from(x2)))
   A__SEL(s(x0), cons(x1, from(x2))) -> c4(MARK(from(x2)))
   A__SEL(s(cons(z0, z1)), cons(x1, from(x2))) -> c4(MARK(from(x2)))
   A__SEL(s(x0), cons(x1, sel(x2, from(z0)))) -> c4(A__SEL(mark(x0), a__sel(mark(x2), a__from(mark(z0)))), MARK(sel(x2, from(z0))))
   A__SEL(s(x0), cons(x1, sel(x2, sel(z0, z1)))) -> c4(A__SEL(mark(x0), a__sel(mark(x2), a__sel(mark(z0), mark(z1)))), MARK(sel(x2, sel(z0, z1))))
   A__SEL(s(x0), cons(x1, sel(x2, cons(z0, z1)))) -> c4(A__SEL(mark(x0), a__sel(mark(x2), cons(mark(z0), z1))), MARK(sel(x2, cons(z0, z1))))
   A__SEL(s(x0), cons(x1, sel(x2, s(z0)))) -> c4(A__SEL(mark(x0), a__sel(mark(x2), s(mark(z0)))), MARK(sel(x2, s(z0))))
   A__SEL(s(x0), cons(x1, sel(x2, 0))) -> c4(A__SEL(mark(x0), a__sel(mark(x2), 0)), MARK(sel(x2, 0)))
   A__SEL(s(x0), cons(x1, sel(from(z0), x3))) -> c4(A__SEL(mark(x0), a__sel(a__from(mark(z0)), mark(x3))), MARK(sel(from(z0), x3)))
   A__SEL(s(x0), cons(x1, sel(sel(z0, z1), x3))) -> c4(A__SEL(mark(x0), a__sel(a__sel(mark(z0), mark(z1)), mark(x3))), MARK(sel(sel(z0, z1), x3)))
   A__SEL(s(x0), cons(x1, sel(cons(z0, z1), x3))) -> c4(A__SEL(mark(x0), a__sel(cons(mark(z0), z1), mark(x3))), MARK(sel(cons(z0, z1), x3)))
   A__SEL(s(x0), cons(x1, sel(s(z0), x3))) -> c4(A__SEL(mark(x0), a__sel(s(mark(z0)), mark(x3))), MARK(sel(s(z0), x3)))
   A__SEL(s(x0), cons(x1, sel(0, x3))) -> c4(A__SEL(mark(x0), a__sel(0, mark(x3))), MARK(sel(0, x3)))
   A__SEL(s(from(z0)), cons(x1, sel(x2, x3))) -> c4(A__SEL(a__from(mark(z0)), a__sel(mark(x2), mark(x3))), MARK(sel(x2, x3)))
   A__SEL(s(sel(z0, z1)), cons(x1, sel(x2, x3))) -> c4(A__SEL(a__sel(mark(z0), mark(z1)), a__sel(mark(x2), mark(x3))), MARK(sel(x2, x3)))
   A__SEL(s(s(z0)), cons(x1, sel(x2, x3))) -> c4(A__SEL(s(mark(z0)), a__sel(mark(x2), mark(x3))), MARK(sel(x2, x3)))
   A__SEL(s(0), cons(x1, sel(x2, x3))) -> c4(A__SEL(0, a__sel(mark(x2), mark(x3))), MARK(sel(x2, x3)))
   A__SEL(s(x0), cons(x1, sel(x2, x3))) -> c4(MARK(sel(x2, x3)))
   A__SEL(s(cons(z0, z1)), cons(x1, sel(x2, x3))) -> c4(MARK(sel(x2, x3)))
   A__SEL(s(x0), cons(x1, cons(from(z0), x3))) -> c4(A__SEL(mark(x0), cons(a__from(mark(z0)), x3)), MARK(cons(from(z0), x3)))
   A__SEL(s(x0), cons(x1, cons(sel(z0, z1), x3))) -> c4(A__SEL(mark(x0), cons(a__sel(mark(z0), mark(z1)), x3)), MARK(cons(sel(z0, z1), x3)))
   A__SEL(s(x0), cons(x1, cons(cons(z0, z1), x3))) -> c4(A__SEL(mark(x0), cons(cons(mark(z0), z1), x3)), MARK(cons(cons(z0, z1), x3)))
   A__SEL(s(x0), cons(x1, cons(s(z0), x3))) -> c4(A__SEL(mark(x0), cons(s(mark(z0)), x3)), MARK(cons(s(z0), x3)))
   A__SEL(s(x0), cons(x1, cons(0, x3))) -> c4(A__SEL(mark(x0), cons(0, x3)), MARK(cons(0, x3)))
   A__SEL(s(from(z0)), cons(x1, cons(x2, x3))) -> c4(A__SEL(a__from(mark(z0)), cons(mark(x2), x3)), MARK(cons(x2, x3)))
   A__SEL(s(sel(z0, z1)), cons(x1, cons(x2, x3))) -> c4(A__SEL(a__sel(mark(z0), mark(z1)), cons(mark(x2), x3)), MARK(cons(x2, x3)))
   A__SEL(s(s(z0)), cons(x1, cons(x2, x3))) -> c4(A__SEL(s(mark(z0)), cons(mark(x2), x3)), MARK(cons(x2, x3)))
   A__SEL(s(0), cons(x1, cons(x2, x3))) -> c4(A__SEL(0, cons(mark(x2), x3)), MARK(cons(x2, x3)))
   A__SEL(s(x0), cons(x1, cons(x2, x3))) -> c4(MARK(cons(x2, x3)))
   A__SEL(s(cons(z0, z1)), cons(x1, cons(x2, x3))) -> c4(MARK(cons(x2, x3)))
   A__SEL(s(from(from(z0))), cons(x1, x2)) -> c4(A__SEL(a__from(a__from(mark(z0))), mark(x2)), MARK(x2))
   A__SEL(s(from(sel(z0, z1))), cons(x1, x2)) -> c4(A__SEL(a__from(a__sel(mark(z0), mark(z1))), mark(x2)), MARK(x2))
   A__SEL(s(from(cons(z0, z1))), cons(x1, x2)) -> c4(A__SEL(a__from(cons(mark(z0), z1)), mark(x2)), MARK(x2))
   A__SEL(s(from(s(z0))), cons(x1, x2)) -> c4(A__SEL(a__from(s(mark(z0))), mark(x2)), MARK(x2))
   A__SEL(s(from(0)), cons(x1, x2)) -> c4(A__SEL(a__from(0), mark(x2)), MARK(x2))
   A__SEL(s(from(x0)), cons(x1, s(z0))) -> c4(MARK(s(z0)))
   A__SEL(s(from(x0)), cons(x1, x2)) -> c4(MARK(x2))
   A__SEL(s(sel(x0, from(z0))), cons(x2, x3)) -> c4(A__SEL(a__sel(mark(x0), a__from(mark(z0))), mark(x3)), MARK(x3))
   A__SEL(s(sel(x0, sel(z0, z1))), cons(x2, x3)) -> c4(A__SEL(a__sel(mark(x0), a__sel(mark(z0), mark(z1))), mark(x3)), MARK(x3))
   A__SEL(s(sel(x0, cons(z0, z1))), cons(x2, x3)) -> c4(A__SEL(a__sel(mark(x0), cons(mark(z0), z1)), mark(x3)), MARK(x3))
   A__SEL(s(sel(x0, s(z0))), cons(x2, x3)) -> c4(A__SEL(a__sel(mark(x0), s(mark(z0))), mark(x3)), MARK(x3))
   A__SEL(s(sel(x0, 0)), cons(x2, x3)) -> c4(A__SEL(a__sel(mark(x0), 0), mark(x3)), MARK(x3))
   A__SEL(s(sel(from(z0), x1)), cons(x2, x3)) -> c4(A__SEL(a__sel(a__from(mark(z0)), mark(x1)), mark(x3)), MARK(x3))
   A__SEL(s(sel(sel(z0, z1), x1)), cons(x2, x3)) -> c4(A__SEL(a__sel(a__sel(mark(z0), mark(z1)), mark(x1)), mark(x3)), MARK(x3))
   A__SEL(s(sel(cons(z0, z1), x1)), cons(x2, x3)) -> c4(A__SEL(a__sel(cons(mark(z0), z1), mark(x1)), mark(x3)), MARK(x3))
   A__SEL(s(sel(s(z0), x1)), cons(x2, x3)) -> c4(A__SEL(a__sel(s(mark(z0)), mark(x1)), mark(x3)), MARK(x3))
   A__SEL(s(sel(0, x1)), cons(x2, x3)) -> c4(A__SEL(a__sel(0, mark(x1)), mark(x3)), MARK(x3))
   A__SEL(s(sel(x0, x1)), cons(x2, s(z0))) -> c4(MARK(s(z0)))
   A__SEL(s(sel(x0, x1)), cons(x2, x3)) -> c4(MARK(x3))
   A__SEL(s(s(from(z0))), cons(x1, x2)) -> c4(A__SEL(s(a__from(mark(z0))), mark(x2)), MARK(x2))
   A__SEL(s(s(sel(z0, z1))), cons(x1, x2)) -> c4(A__SEL(s(a__sel(mark(z0), mark(z1))), mark(x2)), MARK(x2))
   A__SEL(s(s(cons(z0, z1))), cons(x1, x2)) -> c4(A__SEL(s(cons(mark(z0), z1)), mark(x2)), MARK(x2))
   A__SEL(s(s(s(z0))), cons(x1, x2)) -> c4(A__SEL(s(s(mark(z0))), mark(x2)), MARK(x2))
   A__SEL(s(s(0)), cons(x1, x2)) -> c4(A__SEL(s(0), mark(x2)), MARK(x2))
   A__SEL(s(s(x0)), cons(x1, s(z0))) -> c4(MARK(s(z0)))
   A__SEL(s(0), cons(x0, s(z0))) -> c4(MARK(s(z0)))
   MARK(sel(x0, from(x1))) -> c7(A__SEL(mark(x0), cons(mark(mark(x1)), from(s(mark(x1))))), MARK(x0))
   MARK(sel(x0, from(from(z0)))) -> c7(A__SEL(mark(x0), a__from(a__from(mark(z0)))), MARK(x0))
   MARK(sel(x0, from(sel(z0, z1)))) -> c7(A__SEL(mark(x0), a__from(a__sel(mark(z0), mark(z1)))), MARK(x0))
   MARK(sel(x0, from(cons(z0, z1)))) -> c7(A__SEL(mark(x0), a__from(cons(mark(z0), z1))), MARK(x0))
   MARK(sel(x0, from(s(z0)))) -> c7(A__SEL(mark(x0), a__from(s(mark(z0)))), MARK(x0))
   MARK(sel(x0, from(0))) -> c7(A__SEL(mark(x0), a__from(0)), MARK(x0))
   MARK(sel(from(z0), from(x1))) -> c7(A__SEL(a__from(mark(z0)), a__from(mark(x1))), MARK(from(z0)))
   MARK(sel(sel(z0, z1), from(x1))) -> c7(A__SEL(a__sel(mark(z0), mark(z1)), a__from(mark(x1))), MARK(sel(z0, z1)))
   MARK(sel(s(z0), from(x1))) -> c7(A__SEL(s(mark(z0)), a__from(mark(x1))), MARK(s(z0)))
   MARK(sel(x0, from(x1))) -> c7(MARK(x0))
   MARK(sel(cons(z0, z1), from(x1))) -> c7(MARK(cons(z0, z1)))
   MARK(sel(0, from(x1))) -> c7(A__SEL(0, a__from(mark(x1))))
   MARK(sel(x0, sel(x1, from(z0)))) -> c7(A__SEL(mark(x0), a__sel(mark(x1), a__from(mark(z0)))), MARK(x0))
   MARK(sel(x0, sel(x1, sel(z0, z1)))) -> c7(A__SEL(mark(x0), a__sel(mark(x1), a__sel(mark(z0), mark(z1)))), MARK(x0))
   MARK(sel(x0, sel(x1, cons(z0, z1)))) -> c7(A__SEL(mark(x0), a__sel(mark(x1), cons(mark(z0), z1))), MARK(x0))
   MARK(sel(x0, sel(x1, s(z0)))) -> c7(A__SEL(mark(x0), a__sel(mark(x1), s(mark(z0)))), MARK(x0))
   MARK(sel(x0, sel(x1, 0))) -> c7(A__SEL(mark(x0), a__sel(mark(x1), 0)), MARK(x0))
   MARK(sel(x0, sel(from(z0), x2))) -> c7(A__SEL(mark(x0), a__sel(a__from(mark(z0)), mark(x2))), MARK(x0))
   MARK(sel(x0, sel(sel(z0, z1), x2))) -> c7(A__SEL(mark(x0), a__sel(a__sel(mark(z0), mark(z1)), mark(x2))), MARK(x0))
   MARK(sel(x0, sel(cons(z0, z1), x2))) -> c7(A__SEL(mark(x0), a__sel(cons(mark(z0), z1), mark(x2))), MARK(x0))
   MARK(sel(x0, sel(s(z0), x2))) -> c7(A__SEL(mark(x0), a__sel(s(mark(z0)), mark(x2))), MARK(x0))
   MARK(sel(x0, sel(0, x2))) -> c7(A__SEL(mark(x0), a__sel(0, mark(x2))), MARK(x0))
   MARK(sel(from(z0), sel(x1, x2))) -> c7(A__SEL(a__from(mark(z0)), a__sel(mark(x1), mark(x2))), MARK(from(z0)))
   MARK(sel(sel(z0, z1), sel(x1, x2))) -> c7(A__SEL(a__sel(mark(z0), mark(z1)), a__sel(mark(x1), mark(x2))), MARK(sel(z0, z1)))
   MARK(sel(s(z0), sel(x1, x2))) -> c7(A__SEL(s(mark(z0)), a__sel(mark(x1), mark(x2))), MARK(s(z0)))
   MARK(sel(x0, sel(x1, x2))) -> c7(MARK(x0))
   MARK(sel(cons(z0, z1), sel(x1, x2))) -> c7(MARK(cons(z0, z1)))
   MARK(sel(0, sel(x1, x2))) -> c7(A__SEL(0, a__sel(mark(x1), mark(x2))))
   MARK(sel(x0, cons(from(z0), x2))) -> c7(A__SEL(mark(x0), cons(a__from(mark(z0)), x2)), MARK(x0))
   MARK(sel(x0, cons(sel(z0, z1), x2))) -> c7(A__SEL(mark(x0), cons(a__sel(mark(z0), mark(z1)), x2)), MARK(x0))
   MARK(sel(x0, cons(cons(z0, z1), x2))) -> c7(A__SEL(mark(x0), cons(cons(mark(z0), z1), x2)), MARK(x0))
   MARK(sel(x0, cons(s(z0), x2))) -> c7(A__SEL(mark(x0), cons(s(mark(z0)), x2)), MARK(x0))
   MARK(sel(x0, cons(0, x2))) -> c7(A__SEL(mark(x0), cons(0, x2)), MARK(x0))
   MARK(sel(from(z0), cons(x1, x2))) -> c7(A__SEL(a__from(mark(z0)), cons(mark(x1), x2)), MARK(from(z0)))
   MARK(sel(sel(z0, z1), cons(x1, x2))) -> c7(A__SEL(a__sel(mark(z0), mark(z1)), cons(mark(x1), x2)), MARK(sel(z0, z1)))
   MARK(sel(s(z0), cons(x1, x2))) -> c7(A__SEL(s(mark(z0)), cons(mark(x1), x2)), MARK(s(z0)))
   MARK(sel(cons(z0, z1), cons(x1, x2))) -> c7(MARK(cons(z0, z1)))
   MARK(sel(0, cons(x1, x2))) -> c7(A__SEL(0, cons(mark(x1), x2)))
   MARK(sel(from(from(z0)), x1)) -> c7(A__SEL(a__from(a__from(mark(z0))), mark(x1)), MARK(from(from(z0))))
   MARK(sel(from(sel(z0, z1)), x1)) -> c7(A__SEL(a__from(a__sel(mark(z0), mark(z1))), mark(x1)), MARK(from(sel(z0, z1))))
   MARK(sel(from(cons(z0, z1)), x1)) -> c7(A__SEL(a__from(cons(mark(z0), z1)), mark(x1)), MARK(from(cons(z0, z1))))
   MARK(sel(from(s(z0)), x1)) -> c7(A__SEL(a__from(s(mark(z0))), mark(x1)), MARK(from(s(z0))))
   MARK(sel(from(0), x1)) -> c7(A__SEL(a__from(0), mark(x1)), MARK(from(0)))
   MARK(sel(from(x0), x1)) -> c7(MARK(from(x0)))
   MARK(sel(from(x0), s(z0))) -> c7(MARK(from(x0)))
   MARK(sel(from(x0), 0)) -> c7(MARK(from(x0)))
   MARK(sel(sel(x0, from(z0)), x2)) -> c7(A__SEL(a__sel(mark(x0), a__from(mark(z0))), mark(x2)), MARK(sel(x0, from(z0))))
   MARK(sel(sel(x0, sel(z0, z1)), x2)) -> c7(A__SEL(a__sel(mark(x0), a__sel(mark(z0), mark(z1))), mark(x2)), MARK(sel(x0, sel(z0, z1))))
   MARK(sel(sel(x0, cons(z0, z1)), x2)) -> c7(A__SEL(a__sel(mark(x0), cons(mark(z0), z1)), mark(x2)), MARK(sel(x0, cons(z0, z1))))
   MARK(sel(sel(x0, s(z0)), x2)) -> c7(A__SEL(a__sel(mark(x0), s(mark(z0))), mark(x2)), MARK(sel(x0, s(z0))))
   MARK(sel(sel(x0, 0), x2)) -> c7(A__SEL(a__sel(mark(x0), 0), mark(x2)), MARK(sel(x0, 0)))
   MARK(sel(sel(from(z0), x1), x2)) -> c7(A__SEL(a__sel(a__from(mark(z0)), mark(x1)), mark(x2)), MARK(sel(from(z0), x1)))
   MARK(sel(sel(sel(z0, z1), x1), x2)) -> c7(A__SEL(a__sel(a__sel(mark(z0), mark(z1)), mark(x1)), mark(x2)), MARK(sel(sel(z0, z1), x1)))
   MARK(sel(sel(cons(z0, z1), x1), x2)) -> c7(A__SEL(a__sel(cons(mark(z0), z1), mark(x1)), mark(x2)), MARK(sel(cons(z0, z1), x1)))
   MARK(sel(sel(s(z0), x1), x2)) -> c7(A__SEL(a__sel(s(mark(z0)), mark(x1)), mark(x2)), MARK(sel(s(z0), x1)))
   MARK(sel(sel(0, x1), x2)) -> c7(A__SEL(a__sel(0, mark(x1)), mark(x2)), MARK(sel(0, x1)))
   MARK(sel(sel(x0, x1), s(z0))) -> c7(MARK(sel(x0, x1)))
   MARK(sel(sel(x0, x1), 0)) -> c7(MARK(sel(x0, x1)))
   MARK(sel(sel(x0, x1), x2)) -> c7(MARK(sel(x0, x1)))
   MARK(sel(s(from(z0)), x1)) -> c7(A__SEL(s(a__from(mark(z0))), mark(x1)), MARK(s(from(z0))))
   MARK(sel(s(sel(z0, z1)), x1)) -> c7(A__SEL(s(a__sel(mark(z0), mark(z1))), mark(x1)), MARK(s(sel(z0, z1))))
   MARK(sel(s(cons(z0, z1)), x1)) -> c7(A__SEL(s(cons(mark(z0), z1)), mark(x1)), MARK(s(cons(z0, z1))))
   MARK(sel(s(s(z0)), x1)) -> c7(A__SEL(s(s(mark(z0))), mark(x1)), MARK(s(s(z0))))
   MARK(sel(s(0), x1)) -> c7(A__SEL(s(0), mark(x1)), MARK(s(0)))
   MARK(sel(s(x0), x1)) -> c7(MARK(s(x0)))
   MARK(sel(s(x0), s(z0))) -> c7(MARK(s(x0)))
   MARK(sel(s(x0), 0)) -> c7(MARK(s(x0)))
S tuples:
   A__FROM(z0) -> c(MARK(z0))
   A__SEL(0, cons(z0, z1)) -> c2(MARK(z0))
   MARK(from(z0)) -> c6(A__FROM(mark(z0)), MARK(z0))
   MARK(cons(z0, z1)) -> c9(MARK(z0))
   MARK(s(z0)) -> c10(MARK(z0))
   A__SEL(s(x0), cons(x1, s(z0))) -> c3(MARK(x0))
   A__SEL(s(x0), cons(x1, 0)) -> c3(MARK(x0))
   A__SEL(s(cons(z0, z1)), cons(x1, x2)) -> c3(MARK(cons(z0, z1)))
   A__SEL(s(x0), cons(x1, s(z0))) -> c4(MARK(s(z0)))
   A__SEL(s(cons(z0, z1)), cons(x1, x2)) -> c4(MARK(x2))
   MARK(sel(x0, s(z0))) -> c7(MARK(x0))
   MARK(sel(x0, 0)) -> c7(MARK(x0))
   MARK(sel(cons(z0, z1), x1)) -> c7(MARK(cons(z0, z1)))
   MARK(sel(x0, from(z0))) -> c8(A__SEL(mark(x0), a__from(mark(z0))), MARK(from(z0)))
   MARK(sel(x0, sel(z0, z1))) -> c8(A__SEL(mark(x0), a__sel(mark(z0), mark(z1))), MARK(sel(z0, z1)))
   MARK(sel(x0, cons(z0, z1))) -> c8(A__SEL(mark(x0), cons(mark(z0), z1)), MARK(cons(z0, z1)))
   MARK(sel(from(z0), x1)) -> c8(A__SEL(a__from(mark(z0)), mark(x1)), MARK(x1))
   MARK(sel(sel(z0, z1), x1)) -> c8(A__SEL(a__sel(mark(z0), mark(z1)), mark(x1)), MARK(x1))
   MARK(sel(s(z0), x1)) -> c8(A__SEL(s(mark(z0)), mark(x1)), MARK(x1))
   MARK(sel(0, x1)) -> c8(A__SEL(0, mark(x1)), MARK(x1))
   MARK(sel(x0, s(z0))) -> c8(MARK(s(z0)))
   MARK(sel(cons(z0, z1), x1)) -> c8(MARK(x1))
   A__SEL(s(x0), cons(x1, from(x2))) -> c3(A__SEL(mark(x0), cons(mark(mark(x2)), from(s(mark(x2))))), MARK(x0))
   A__SEL(s(x0), cons(x1, from(from(z0)))) -> c3(A__SEL(mark(x0), a__from(a__from(mark(z0)))), MARK(x0))
   A__SEL(s(x0), cons(x1, from(sel(z0, z1)))) -> c3(A__SEL(mark(x0), a__from(a__sel(mark(z0), mark(z1)))), MARK(x0))
   A__SEL(s(x0), cons(x1, from(cons(z0, z1)))) -> c3(A__SEL(mark(x0), a__from(cons(mark(z0), z1))), MARK(x0))
   A__SEL(s(x0), cons(x1, from(s(z0)))) -> c3(A__SEL(mark(x0), a__from(s(mark(z0)))), MARK(x0))
   A__SEL(s(x0), cons(x1, from(0))) -> c3(A__SEL(mark(x0), a__from(0)), MARK(x0))
   A__SEL(s(from(z0)), cons(x1, from(x2))) -> c3(A__SEL(a__from(mark(z0)), a__from(mark(x2))), MARK(from(z0)))
   A__SEL(s(sel(z0, z1)), cons(x1, from(x2))) -> c3(A__SEL(a__sel(mark(z0), mark(z1)), a__from(mark(x2))), MARK(sel(z0, z1)))
   A__SEL(s(s(z0)), cons(x1, from(x2))) -> c3(A__SEL(s(mark(z0)), a__from(mark(x2))), MARK(s(z0)))
   A__SEL(s(x0), cons(x1, from(x2))) -> c3(MARK(x0))
   A__SEL(s(cons(z0, z1)), cons(x1, from(x2))) -> c3(MARK(cons(z0, z1)))
   A__SEL(s(0), cons(x1, from(x2))) -> c3(A__SEL(0, a__from(mark(x2))))
   A__SEL(s(x0), cons(x1, sel(x2, from(z0)))) -> c3(A__SEL(mark(x0), a__sel(mark(x2), a__from(mark(z0)))), MARK(x0))
   A__SEL(s(x0), cons(x1, sel(x2, sel(z0, z1)))) -> c3(A__SEL(mark(x0), a__sel(mark(x2), a__sel(mark(z0), mark(z1)))), MARK(x0))
   A__SEL(s(x0), cons(x1, sel(x2, cons(z0, z1)))) -> c3(A__SEL(mark(x0), a__sel(mark(x2), cons(mark(z0), z1))), MARK(x0))
   A__SEL(s(x0), cons(x1, sel(x2, s(z0)))) -> c3(A__SEL(mark(x0), a__sel(mark(x2), s(mark(z0)))), MARK(x0))
   A__SEL(s(x0), cons(x1, sel(x2, 0))) -> c3(A__SEL(mark(x0), a__sel(mark(x2), 0)), MARK(x0))
   A__SEL(s(x0), cons(x1, sel(from(z0), x3))) -> c3(A__SEL(mark(x0), a__sel(a__from(mark(z0)), mark(x3))), MARK(x0))
   A__SEL(s(x0), cons(x1, sel(sel(z0, z1), x3))) -> c3(A__SEL(mark(x0), a__sel(a__sel(mark(z0), mark(z1)), mark(x3))), MARK(x0))
   A__SEL(s(x0), cons(x1, sel(cons(z0, z1), x3))) -> c3(A__SEL(mark(x0), a__sel(cons(mark(z0), z1), mark(x3))), MARK(x0))
   A__SEL(s(x0), cons(x1, sel(s(z0), x3))) -> c3(A__SEL(mark(x0), a__sel(s(mark(z0)), mark(x3))), MARK(x0))
   A__SEL(s(x0), cons(x1, sel(0, x3))) -> c3(A__SEL(mark(x0), a__sel(0, mark(x3))), MARK(x0))
   A__SEL(s(from(z0)), cons(x1, sel(x2, x3))) -> c3(A__SEL(a__from(mark(z0)), a__sel(mark(x2), mark(x3))), MARK(from(z0)))
   A__SEL(s(sel(z0, z1)), cons(x1, sel(x2, x3))) -> c3(A__SEL(a__sel(mark(z0), mark(z1)), a__sel(mark(x2), mark(x3))), MARK(sel(z0, z1)))
   A__SEL(s(s(z0)), cons(x1, sel(x2, x3))) -> c3(A__SEL(s(mark(z0)), a__sel(mark(x2), mark(x3))), MARK(s(z0)))
   A__SEL(s(x0), cons(x1, sel(x2, x3))) -> c3(MARK(x0))
   A__SEL(s(cons(z0, z1)), cons(x1, sel(x2, x3))) -> c3(MARK(cons(z0, z1)))
   A__SEL(s(0), cons(x1, sel(x2, x3))) -> c3(A__SEL(0, a__sel(mark(x2), mark(x3))))
   A__SEL(s(x0), cons(x1, cons(from(z0), x3))) -> c3(A__SEL(mark(x0), cons(a__from(mark(z0)), x3)), MARK(x0))
   A__SEL(s(x0), cons(x1, cons(sel(z0, z1), x3))) -> c3(A__SEL(mark(x0), cons(a__sel(mark(z0), mark(z1)), x3)), MARK(x0))
   A__SEL(s(x0), cons(x1, cons(cons(z0, z1), x3))) -> c3(A__SEL(mark(x0), cons(cons(mark(z0), z1), x3)), MARK(x0))
   A__SEL(s(x0), cons(x1, cons(s(z0), x3))) -> c3(A__SEL(mark(x0), cons(s(mark(z0)), x3)), MARK(x0))
   A__SEL(s(x0), cons(x1, cons(0, x3))) -> c3(A__SEL(mark(x0), cons(0, x3)), MARK(x0))
   A__SEL(s(from(z0)), cons(x1, cons(x2, x3))) -> c3(A__SEL(a__from(mark(z0)), cons(mark(x2), x3)), MARK(from(z0)))
   A__SEL(s(sel(z0, z1)), cons(x1, cons(x2, x3))) -> c3(A__SEL(a__sel(mark(z0), mark(z1)), cons(mark(x2), x3)), MARK(sel(z0, z1)))
   A__SEL(s(s(z0)), cons(x1, cons(x2, x3))) -> c3(A__SEL(s(mark(z0)), cons(mark(x2), x3)), MARK(s(z0)))
   A__SEL(s(cons(z0, z1)), cons(x1, cons(x2, x3))) -> c3(MARK(cons(z0, z1)))
   A__SEL(s(0), cons(x1, cons(x2, x3))) -> c3(A__SEL(0, cons(mark(x2), x3)))
   A__SEL(s(from(from(z0))), cons(x1, x2)) -> c3(A__SEL(a__from(a__from(mark(z0))), mark(x2)), MARK(from(from(z0))))
   A__SEL(s(from(sel(z0, z1))), cons(x1, x2)) -> c3(A__SEL(a__from(a__sel(mark(z0), mark(z1))), mark(x2)), MARK(from(sel(z0, z1))))
   A__SEL(s(from(cons(z0, z1))), cons(x1, x2)) -> c3(A__SEL(a__from(cons(mark(z0), z1)), mark(x2)), MARK(from(cons(z0, z1))))
   A__SEL(s(from(s(z0))), cons(x1, x2)) -> c3(A__SEL(a__from(s(mark(z0))), mark(x2)), MARK(from(s(z0))))
   A__SEL(s(from(0)), cons(x1, x2)) -> c3(A__SEL(a__from(0), mark(x2)), MARK(from(0)))
   A__SEL(s(from(x0)), cons(x1, x2)) -> c3(MARK(from(x0)))
   A__SEL(s(from(x0)), cons(x1, s(z0))) -> c3(MARK(from(x0)))
   A__SEL(s(from(x0)), cons(x1, 0)) -> c3(MARK(from(x0)))
   A__SEL(s(sel(x0, from(z0))), cons(x2, x3)) -> c3(A__SEL(a__sel(mark(x0), a__from(mark(z0))), mark(x3)), MARK(sel(x0, from(z0))))
   A__SEL(s(sel(x0, sel(z0, z1))), cons(x2, x3)) -> c3(A__SEL(a__sel(mark(x0), a__sel(mark(z0), mark(z1))), mark(x3)), MARK(sel(x0, sel(z0, z1))))
   A__SEL(s(sel(x0, cons(z0, z1))), cons(x2, x3)) -> c3(A__SEL(a__sel(mark(x0), cons(mark(z0), z1)), mark(x3)), MARK(sel(x0, cons(z0, z1))))
   A__SEL(s(sel(x0, s(z0))), cons(x2, x3)) -> c3(A__SEL(a__sel(mark(x0), s(mark(z0))), mark(x3)), MARK(sel(x0, s(z0))))
   A__SEL(s(sel(x0, 0)), cons(x2, x3)) -> c3(A__SEL(a__sel(mark(x0), 0), mark(x3)), MARK(sel(x0, 0)))
   A__SEL(s(sel(from(z0), x1)), cons(x2, x3)) -> c3(A__SEL(a__sel(a__from(mark(z0)), mark(x1)), mark(x3)), MARK(sel(from(z0), x1)))
   A__SEL(s(sel(sel(z0, z1), x1)), cons(x2, x3)) -> c3(A__SEL(a__sel(a__sel(mark(z0), mark(z1)), mark(x1)), mark(x3)), MARK(sel(sel(z0, z1), x1)))
   A__SEL(s(sel(cons(z0, z1), x1)), cons(x2, x3)) -> c3(A__SEL(a__sel(cons(mark(z0), z1), mark(x1)), mark(x3)), MARK(sel(cons(z0, z1), x1)))
   A__SEL(s(sel(s(z0), x1)), cons(x2, x3)) -> c3(A__SEL(a__sel(s(mark(z0)), mark(x1)), mark(x3)), MARK(sel(s(z0), x1)))
   A__SEL(s(sel(0, x1)), cons(x2, x3)) -> c3(A__SEL(a__sel(0, mark(x1)), mark(x3)), MARK(sel(0, x1)))
   A__SEL(s(sel(x0, x1)), cons(x2, s(z0))) -> c3(MARK(sel(x0, x1)))
   A__SEL(s(sel(x0, x1)), cons(x2, 0)) -> c3(MARK(sel(x0, x1)))
   A__SEL(s(sel(x0, x1)), cons(x2, x3)) -> c3(MARK(sel(x0, x1)))
   A__SEL(s(s(from(z0))), cons(x1, x2)) -> c3(A__SEL(s(a__from(mark(z0))), mark(x2)), MARK(s(from(z0))))
   A__SEL(s(s(sel(z0, z1))), cons(x1, x2)) -> c3(A__SEL(s(a__sel(mark(z0), mark(z1))), mark(x2)), MARK(s(sel(z0, z1))))
   A__SEL(s(s(cons(z0, z1))), cons(x1, x2)) -> c3(A__SEL(s(cons(mark(z0), z1)), mark(x2)), MARK(s(cons(z0, z1))))
   A__SEL(s(s(s(z0))), cons(x1, x2)) -> c3(A__SEL(s(s(mark(z0))), mark(x2)), MARK(s(s(z0))))
   A__SEL(s(s(0)), cons(x1, x2)) -> c3(A__SEL(s(0), mark(x2)), MARK(s(0)))
   A__SEL(s(s(x0)), cons(x1, x2)) -> c3(MARK(s(x0)))
   A__SEL(s(s(x0)), cons(x1, s(z0))) -> c3(MARK(s(x0)))
   A__SEL(s(s(x0)), cons(x1, 0)) -> c3(MARK(s(x0)))
   A__SEL(s(x0), cons(x1, from(x2))) -> c4(A__SEL(mark(x0), cons(mark(mark(x2)), from(s(mark(x2))))), MARK(from(x2)))
   A__SEL(s(x0), cons(x1, from(from(z0)))) -> c4(A__SEL(mark(x0), a__from(a__from(mark(z0)))), MARK(from(from(z0))))
   A__SEL(s(x0), cons(x1, from(sel(z0, z1)))) -> c4(A__SEL(mark(x0), a__from(a__sel(mark(z0), mark(z1)))), MARK(from(sel(z0, z1))))
   A__SEL(s(x0), cons(x1, from(cons(z0, z1)))) -> c4(A__SEL(mark(x0), a__from(cons(mark(z0), z1))), MARK(from(cons(z0, z1))))
   A__SEL(s(x0), cons(x1, from(s(z0)))) -> c4(A__SEL(mark(x0), a__from(s(mark(z0)))), MARK(from(s(z0))))
   A__SEL(s(x0), cons(x1, from(0))) -> c4(A__SEL(mark(x0), a__from(0)), MARK(from(0)))
   A__SEL(s(from(z0)), cons(x1, from(x2))) -> c4(A__SEL(a__from(mark(z0)), a__from(mark(x2))), MARK(from(x2)))
   A__SEL(s(sel(z0, z1)), cons(x1, from(x2))) -> c4(A__SEL(a__sel(mark(z0), mark(z1)), a__from(mark(x2))), MARK(from(x2)))
   A__SEL(s(s(z0)), cons(x1, from(x2))) -> c4(A__SEL(s(mark(z0)), a__from(mark(x2))), MARK(from(x2)))
   A__SEL(s(0), cons(x1, from(x2))) -> c4(A__SEL(0, a__from(mark(x2))), MARK(from(x2)))
   A__SEL(s(x0), cons(x1, from(x2))) -> c4(MARK(from(x2)))
   A__SEL(s(cons(z0, z1)), cons(x1, from(x2))) -> c4(MARK(from(x2)))
   A__SEL(s(x0), cons(x1, sel(x2, from(z0)))) -> c4(A__SEL(mark(x0), a__sel(mark(x2), a__from(mark(z0)))), MARK(sel(x2, from(z0))))
   A__SEL(s(x0), cons(x1, sel(x2, sel(z0, z1)))) -> c4(A__SEL(mark(x0), a__sel(mark(x2), a__sel(mark(z0), mark(z1)))), MARK(sel(x2, sel(z0, z1))))
   A__SEL(s(x0), cons(x1, sel(x2, cons(z0, z1)))) -> c4(A__SEL(mark(x0), a__sel(mark(x2), cons(mark(z0), z1))), MARK(sel(x2, cons(z0, z1))))
   A__SEL(s(x0), cons(x1, sel(x2, s(z0)))) -> c4(A__SEL(mark(x0), a__sel(mark(x2), s(mark(z0)))), MARK(sel(x2, s(z0))))
   A__SEL(s(x0), cons(x1, sel(x2, 0))) -> c4(A__SEL(mark(x0), a__sel(mark(x2), 0)), MARK(sel(x2, 0)))
   A__SEL(s(x0), cons(x1, sel(from(z0), x3))) -> c4(A__SEL(mark(x0), a__sel(a__from(mark(z0)), mark(x3))), MARK(sel(from(z0), x3)))
   A__SEL(s(x0), cons(x1, sel(sel(z0, z1), x3))) -> c4(A__SEL(mark(x0), a__sel(a__sel(mark(z0), mark(z1)), mark(x3))), MARK(sel(sel(z0, z1), x3)))
   A__SEL(s(x0), cons(x1, sel(cons(z0, z1), x3))) -> c4(A__SEL(mark(x0), a__sel(cons(mark(z0), z1), mark(x3))), MARK(sel(cons(z0, z1), x3)))
   A__SEL(s(x0), cons(x1, sel(s(z0), x3))) -> c4(A__SEL(mark(x0), a__sel(s(mark(z0)), mark(x3))), MARK(sel(s(z0), x3)))
   A__SEL(s(x0), cons(x1, sel(0, x3))) -> c4(A__SEL(mark(x0), a__sel(0, mark(x3))), MARK(sel(0, x3)))
   A__SEL(s(from(z0)), cons(x1, sel(x2, x3))) -> c4(A__SEL(a__from(mark(z0)), a__sel(mark(x2), mark(x3))), MARK(sel(x2, x3)))
   A__SEL(s(sel(z0, z1)), cons(x1, sel(x2, x3))) -> c4(A__SEL(a__sel(mark(z0), mark(z1)), a__sel(mark(x2), mark(x3))), MARK(sel(x2, x3)))
   A__SEL(s(s(z0)), cons(x1, sel(x2, x3))) -> c4(A__SEL(s(mark(z0)), a__sel(mark(x2), mark(x3))), MARK(sel(x2, x3)))
   A__SEL(s(0), cons(x1, sel(x2, x3))) -> c4(A__SEL(0, a__sel(mark(x2), mark(x3))), MARK(sel(x2, x3)))
   A__SEL(s(x0), cons(x1, sel(x2, x3))) -> c4(MARK(sel(x2, x3)))
   A__SEL(s(cons(z0, z1)), cons(x1, sel(x2, x3))) -> c4(MARK(sel(x2, x3)))
   A__SEL(s(x0), cons(x1, cons(from(z0), x3))) -> c4(A__SEL(mark(x0), cons(a__from(mark(z0)), x3)), MARK(cons(from(z0), x3)))
   A__SEL(s(x0), cons(x1, cons(sel(z0, z1), x3))) -> c4(A__SEL(mark(x0), cons(a__sel(mark(z0), mark(z1)), x3)), MARK(cons(sel(z0, z1), x3)))
   A__SEL(s(x0), cons(x1, cons(cons(z0, z1), x3))) -> c4(A__SEL(mark(x0), cons(cons(mark(z0), z1), x3)), MARK(cons(cons(z0, z1), x3)))
   A__SEL(s(x0), cons(x1, cons(s(z0), x3))) -> c4(A__SEL(mark(x0), cons(s(mark(z0)), x3)), MARK(cons(s(z0), x3)))
   A__SEL(s(x0), cons(x1, cons(0, x3))) -> c4(A__SEL(mark(x0), cons(0, x3)), MARK(cons(0, x3)))
   A__SEL(s(from(z0)), cons(x1, cons(x2, x3))) -> c4(A__SEL(a__from(mark(z0)), cons(mark(x2), x3)), MARK(cons(x2, x3)))
   A__SEL(s(sel(z0, z1)), cons(x1, cons(x2, x3))) -> c4(A__SEL(a__sel(mark(z0), mark(z1)), cons(mark(x2), x3)), MARK(cons(x2, x3)))
   A__SEL(s(s(z0)), cons(x1, cons(x2, x3))) -> c4(A__SEL(s(mark(z0)), cons(mark(x2), x3)), MARK(cons(x2, x3)))
   A__SEL(s(0), cons(x1, cons(x2, x3))) -> c4(A__SEL(0, cons(mark(x2), x3)), MARK(cons(x2, x3)))
   A__SEL(s(x0), cons(x1, cons(x2, x3))) -> c4(MARK(cons(x2, x3)))
   A__SEL(s(cons(z0, z1)), cons(x1, cons(x2, x3))) -> c4(MARK(cons(x2, x3)))
   A__SEL(s(from(from(z0))), cons(x1, x2)) -> c4(A__SEL(a__from(a__from(mark(z0))), mark(x2)), MARK(x2))
   A__SEL(s(from(sel(z0, z1))), cons(x1, x2)) -> c4(A__SEL(a__from(a__sel(mark(z0), mark(z1))), mark(x2)), MARK(x2))
   A__SEL(s(from(cons(z0, z1))), cons(x1, x2)) -> c4(A__SEL(a__from(cons(mark(z0), z1)), mark(x2)), MARK(x2))
   A__SEL(s(from(s(z0))), cons(x1, x2)) -> c4(A__SEL(a__from(s(mark(z0))), mark(x2)), MARK(x2))
   A__SEL(s(from(0)), cons(x1, x2)) -> c4(A__SEL(a__from(0), mark(x2)), MARK(x2))
   A__SEL(s(from(x0)), cons(x1, s(z0))) -> c4(MARK(s(z0)))
   A__SEL(s(from(x0)), cons(x1, x2)) -> c4(MARK(x2))
   A__SEL(s(sel(x0, from(z0))), cons(x2, x3)) -> c4(A__SEL(a__sel(mark(x0), a__from(mark(z0))), mark(x3)), MARK(x3))
   A__SEL(s(sel(x0, sel(z0, z1))), cons(x2, x3)) -> c4(A__SEL(a__sel(mark(x0), a__sel(mark(z0), mark(z1))), mark(x3)), MARK(x3))
   A__SEL(s(sel(x0, cons(z0, z1))), cons(x2, x3)) -> c4(A__SEL(a__sel(mark(x0), cons(mark(z0), z1)), mark(x3)), MARK(x3))
   A__SEL(s(sel(x0, s(z0))), cons(x2, x3)) -> c4(A__SEL(a__sel(mark(x0), s(mark(z0))), mark(x3)), MARK(x3))
   A__SEL(s(sel(x0, 0)), cons(x2, x3)) -> c4(A__SEL(a__sel(mark(x0), 0), mark(x3)), MARK(x3))
   A__SEL(s(sel(from(z0), x1)), cons(x2, x3)) -> c4(A__SEL(a__sel(a__from(mark(z0)), mark(x1)), mark(x3)), MARK(x3))
   A__SEL(s(sel(sel(z0, z1), x1)), cons(x2, x3)) -> c4(A__SEL(a__sel(a__sel(mark(z0), mark(z1)), mark(x1)), mark(x3)), MARK(x3))
   A__SEL(s(sel(cons(z0, z1), x1)), cons(x2, x3)) -> c4(A__SEL(a__sel(cons(mark(z0), z1), mark(x1)), mark(x3)), MARK(x3))
   A__SEL(s(sel(s(z0), x1)), cons(x2, x3)) -> c4(A__SEL(a__sel(s(mark(z0)), mark(x1)), mark(x3)), MARK(x3))
   A__SEL(s(sel(0, x1)), cons(x2, x3)) -> c4(A__SEL(a__sel(0, mark(x1)), mark(x3)), MARK(x3))
   A__SEL(s(sel(x0, x1)), cons(x2, s(z0))) -> c4(MARK(s(z0)))
   A__SEL(s(sel(x0, x1)), cons(x2, x3)) -> c4(MARK(x3))
   A__SEL(s(s(from(z0))), cons(x1, x2)) -> c4(A__SEL(s(a__from(mark(z0))), mark(x2)), MARK(x2))
   A__SEL(s(s(sel(z0, z1))), cons(x1, x2)) -> c4(A__SEL(s(a__sel(mark(z0), mark(z1))), mark(x2)), MARK(x2))
   A__SEL(s(s(cons(z0, z1))), cons(x1, x2)) -> c4(A__SEL(s(cons(mark(z0), z1)), mark(x2)), MARK(x2))
   A__SEL(s(s(s(z0))), cons(x1, x2)) -> c4(A__SEL(s(s(mark(z0))), mark(x2)), MARK(x2))
   A__SEL(s(s(0)), cons(x1, x2)) -> c4(A__SEL(s(0), mark(x2)), MARK(x2))
   A__SEL(s(s(x0)), cons(x1, s(z0))) -> c4(MARK(s(z0)))
   A__SEL(s(0), cons(x0, s(z0))) -> c4(MARK(s(z0)))
   MARK(sel(x0, from(x1))) -> c7(A__SEL(mark(x0), cons(mark(mark(x1)), from(s(mark(x1))))), MARK(x0))
   MARK(sel(x0, from(from(z0)))) -> c7(A__SEL(mark(x0), a__from(a__from(mark(z0)))), MARK(x0))
   MARK(sel(x0, from(sel(z0, z1)))) -> c7(A__SEL(mark(x0), a__from(a__sel(mark(z0), mark(z1)))), MARK(x0))
   MARK(sel(x0, from(cons(z0, z1)))) -> c7(A__SEL(mark(x0), a__from(cons(mark(z0), z1))), MARK(x0))
   MARK(sel(x0, from(s(z0)))) -> c7(A__SEL(mark(x0), a__from(s(mark(z0)))), MARK(x0))
   MARK(sel(x0, from(0))) -> c7(A__SEL(mark(x0), a__from(0)), MARK(x0))
   MARK(sel(from(z0), from(x1))) -> c7(A__SEL(a__from(mark(z0)), a__from(mark(x1))), MARK(from(z0)))
   MARK(sel(sel(z0, z1), from(x1))) -> c7(A__SEL(a__sel(mark(z0), mark(z1)), a__from(mark(x1))), MARK(sel(z0, z1)))
   MARK(sel(s(z0), from(x1))) -> c7(A__SEL(s(mark(z0)), a__from(mark(x1))), MARK(s(z0)))
   MARK(sel(x0, from(x1))) -> c7(MARK(x0))
   MARK(sel(cons(z0, z1), from(x1))) -> c7(MARK(cons(z0, z1)))
   MARK(sel(0, from(x1))) -> c7(A__SEL(0, a__from(mark(x1))))
   MARK(sel(x0, sel(x1, from(z0)))) -> c7(A__SEL(mark(x0), a__sel(mark(x1), a__from(mark(z0)))), MARK(x0))
   MARK(sel(x0, sel(x1, sel(z0, z1)))) -> c7(A__SEL(mark(x0), a__sel(mark(x1), a__sel(mark(z0), mark(z1)))), MARK(x0))
   MARK(sel(x0, sel(x1, cons(z0, z1)))) -> c7(A__SEL(mark(x0), a__sel(mark(x1), cons(mark(z0), z1))), MARK(x0))
   MARK(sel(x0, sel(x1, s(z0)))) -> c7(A__SEL(mark(x0), a__sel(mark(x1), s(mark(z0)))), MARK(x0))
   MARK(sel(x0, sel(x1, 0))) -> c7(A__SEL(mark(x0), a__sel(mark(x1), 0)), MARK(x0))
   MARK(sel(x0, sel(from(z0), x2))) -> c7(A__SEL(mark(x0), a__sel(a__from(mark(z0)), mark(x2))), MARK(x0))
   MARK(sel(x0, sel(sel(z0, z1), x2))) -> c7(A__SEL(mark(x0), a__sel(a__sel(mark(z0), mark(z1)), mark(x2))), MARK(x0))
   MARK(sel(x0, sel(cons(z0, z1), x2))) -> c7(A__SEL(mark(x0), a__sel(cons(mark(z0), z1), mark(x2))), MARK(x0))
   MARK(sel(x0, sel(s(z0), x2))) -> c7(A__SEL(mark(x0), a__sel(s(mark(z0)), mark(x2))), MARK(x0))
   MARK(sel(x0, sel(0, x2))) -> c7(A__SEL(mark(x0), a__sel(0, mark(x2))), MARK(x0))
   MARK(sel(from(z0), sel(x1, x2))) -> c7(A__SEL(a__from(mark(z0)), a__sel(mark(x1), mark(x2))), MARK(from(z0)))
   MARK(sel(sel(z0, z1), sel(x1, x2))) -> c7(A__SEL(a__sel(mark(z0), mark(z1)), a__sel(mark(x1), mark(x2))), MARK(sel(z0, z1)))
   MARK(sel(s(z0), sel(x1, x2))) -> c7(A__SEL(s(mark(z0)), a__sel(mark(x1), mark(x2))), MARK(s(z0)))
   MARK(sel(x0, sel(x1, x2))) -> c7(MARK(x0))
   MARK(sel(cons(z0, z1), sel(x1, x2))) -> c7(MARK(cons(z0, z1)))
   MARK(sel(0, sel(x1, x2))) -> c7(A__SEL(0, a__sel(mark(x1), mark(x2))))
   MARK(sel(x0, cons(from(z0), x2))) -> c7(A__SEL(mark(x0), cons(a__from(mark(z0)), x2)), MARK(x0))
   MARK(sel(x0, cons(sel(z0, z1), x2))) -> c7(A__SEL(mark(x0), cons(a__sel(mark(z0), mark(z1)), x2)), MARK(x0))
   MARK(sel(x0, cons(cons(z0, z1), x2))) -> c7(A__SEL(mark(x0), cons(cons(mark(z0), z1), x2)), MARK(x0))
   MARK(sel(x0, cons(s(z0), x2))) -> c7(A__SEL(mark(x0), cons(s(mark(z0)), x2)), MARK(x0))
   MARK(sel(x0, cons(0, x2))) -> c7(A__SEL(mark(x0), cons(0, x2)), MARK(x0))
   MARK(sel(from(z0), cons(x1, x2))) -> c7(A__SEL(a__from(mark(z0)), cons(mark(x1), x2)), MARK(from(z0)))
   MARK(sel(sel(z0, z1), cons(x1, x2))) -> c7(A__SEL(a__sel(mark(z0), mark(z1)), cons(mark(x1), x2)), MARK(sel(z0, z1)))
   MARK(sel(s(z0), cons(x1, x2))) -> c7(A__SEL(s(mark(z0)), cons(mark(x1), x2)), MARK(s(z0)))
   MARK(sel(cons(z0, z1), cons(x1, x2))) -> c7(MARK(cons(z0, z1)))
   MARK(sel(0, cons(x1, x2))) -> c7(A__SEL(0, cons(mark(x1), x2)))
   MARK(sel(from(from(z0)), x1)) -> c7(A__SEL(a__from(a__from(mark(z0))), mark(x1)), MARK(from(from(z0))))
   MARK(sel(from(sel(z0, z1)), x1)) -> c7(A__SEL(a__from(a__sel(mark(z0), mark(z1))), mark(x1)), MARK(from(sel(z0, z1))))
   MARK(sel(from(cons(z0, z1)), x1)) -> c7(A__SEL(a__from(cons(mark(z0), z1)), mark(x1)), MARK(from(cons(z0, z1))))
   MARK(sel(from(s(z0)), x1)) -> c7(A__SEL(a__from(s(mark(z0))), mark(x1)), MARK(from(s(z0))))
   MARK(sel(from(0), x1)) -> c7(A__SEL(a__from(0), mark(x1)), MARK(from(0)))
   MARK(sel(from(x0), x1)) -> c7(MARK(from(x0)))
   MARK(sel(from(x0), s(z0))) -> c7(MARK(from(x0)))
   MARK(sel(from(x0), 0)) -> c7(MARK(from(x0)))
   MARK(sel(sel(x0, from(z0)), x2)) -> c7(A__SEL(a__sel(mark(x0), a__from(mark(z0))), mark(x2)), MARK(sel(x0, from(z0))))
   MARK(sel(sel(x0, sel(z0, z1)), x2)) -> c7(A__SEL(a__sel(mark(x0), a__sel(mark(z0), mark(z1))), mark(x2)), MARK(sel(x0, sel(z0, z1))))
   MARK(sel(sel(x0, cons(z0, z1)), x2)) -> c7(A__SEL(a__sel(mark(x0), cons(mark(z0), z1)), mark(x2)), MARK(sel(x0, cons(z0, z1))))
   MARK(sel(sel(x0, s(z0)), x2)) -> c7(A__SEL(a__sel(mark(x0), s(mark(z0))), mark(x2)), MARK(sel(x0, s(z0))))
   MARK(sel(sel(x0, 0), x2)) -> c7(A__SEL(a__sel(mark(x0), 0), mark(x2)), MARK(sel(x0, 0)))
   MARK(sel(sel(from(z0), x1), x2)) -> c7(A__SEL(a__sel(a__from(mark(z0)), mark(x1)), mark(x2)), MARK(sel(from(z0), x1)))
   MARK(sel(sel(sel(z0, z1), x1), x2)) -> c7(A__SEL(a__sel(a__sel(mark(z0), mark(z1)), mark(x1)), mark(x2)), MARK(sel(sel(z0, z1), x1)))
   MARK(sel(sel(cons(z0, z1), x1), x2)) -> c7(A__SEL(a__sel(cons(mark(z0), z1), mark(x1)), mark(x2)), MARK(sel(cons(z0, z1), x1)))
   MARK(sel(sel(s(z0), x1), x2)) -> c7(A__SEL(a__sel(s(mark(z0)), mark(x1)), mark(x2)), MARK(sel(s(z0), x1)))
   MARK(sel(sel(0, x1), x2)) -> c7(A__SEL(a__sel(0, mark(x1)), mark(x2)), MARK(sel(0, x1)))
   MARK(sel(sel(x0, x1), s(z0))) -> c7(MARK(sel(x0, x1)))
   MARK(sel(sel(x0, x1), 0)) -> c7(MARK(sel(x0, x1)))
   MARK(sel(sel(x0, x1), x2)) -> c7(MARK(sel(x0, x1)))
   MARK(sel(s(from(z0)), x1)) -> c7(A__SEL(s(a__from(mark(z0))), mark(x1)), MARK(s(from(z0))))
   MARK(sel(s(sel(z0, z1)), x1)) -> c7(A__SEL(s(a__sel(mark(z0), mark(z1))), mark(x1)), MARK(s(sel(z0, z1))))
   MARK(sel(s(cons(z0, z1)), x1)) -> c7(A__SEL(s(cons(mark(z0), z1)), mark(x1)), MARK(s(cons(z0, z1))))
   MARK(sel(s(s(z0)), x1)) -> c7(A__SEL(s(s(mark(z0))), mark(x1)), MARK(s(s(z0))))
   MARK(sel(s(0), x1)) -> c7(A__SEL(s(0), mark(x1)), MARK(s(0)))
   MARK(sel(s(x0), x1)) -> c7(MARK(s(x0)))
   MARK(sel(s(x0), s(z0))) -> c7(MARK(s(x0)))
   MARK(sel(s(x0), 0)) -> c7(MARK(s(x0)))
K tuples:none
Defined Rule Symbols:   a__from_1, a__sel_2, mark_1

Defined Pair Symbols:   A__FROM_1, A__SEL_2, MARK_1

Compound Symbols:   c_1, c2_1, c6_2, c9_1, c10_1, c3_1, c4_1, c7_1, c8_2, c8_1, c3_2, c4_2, c7_2


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

(169) CdtNarrowingProof (BOTH BOUNDS(ID, ID))
Use narrowing to replace MARK(sel(x0, from(z0))) -> c8(A__SEL(mark(x0), a__from(mark(z0))), MARK(from(z0))) by 
   MARK(sel(x0, from(x1))) -> c8(A__SEL(mark(x0), cons(mark(mark(x1)), from(s(mark(x1))))), MARK(from(x1)))
   MARK(sel(x0, from(x1))) -> c8(A__SEL(mark(x0), from(mark(x1))), MARK(from(x1)))
   MARK(sel(x0, from(from(z0)))) -> c8(A__SEL(mark(x0), a__from(a__from(mark(z0)))), MARK(from(from(z0))))
   MARK(sel(x0, from(sel(z0, z1)))) -> c8(A__SEL(mark(x0), a__from(a__sel(mark(z0), mark(z1)))), MARK(from(sel(z0, z1))))
   MARK(sel(x0, from(cons(z0, z1)))) -> c8(A__SEL(mark(x0), a__from(cons(mark(z0), z1))), MARK(from(cons(z0, z1))))
   MARK(sel(x0, from(s(z0)))) -> c8(A__SEL(mark(x0), a__from(s(mark(z0)))), MARK(from(s(z0))))
   MARK(sel(x0, from(0))) -> c8(A__SEL(mark(x0), a__from(0)), MARK(from(0)))
   MARK(sel(from(z0), from(x1))) -> c8(A__SEL(a__from(mark(z0)), a__from(mark(x1))), MARK(from(x1)))
   MARK(sel(sel(z0, z1), from(x1))) -> c8(A__SEL(a__sel(mark(z0), mark(z1)), a__from(mark(x1))), MARK(from(x1)))
   MARK(sel(cons(z0, z1), from(x1))) -> c8(A__SEL(cons(mark(z0), z1), a__from(mark(x1))), MARK(from(x1)))
   MARK(sel(s(z0), from(x1))) -> c8(A__SEL(s(mark(z0)), a__from(mark(x1))), MARK(from(x1)))
   MARK(sel(0, from(x1))) -> c8(A__SEL(0, a__from(mark(x1))), MARK(from(x1)))
   MARK(sel(x0, from(x1))) -> c8(MARK(from(x1)))

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

(170)
Obligation:
Complexity Dependency Tuples Problem

Rules:
   a__from(z0) -> cons(mark(z0), from(s(z0)))
   a__from(z0) -> from(z0)
   a__sel(0, cons(z0, z1)) -> mark(z0)
   a__sel(s(z0), cons(z1, z2)) -> a__sel(mark(z0), mark(z2))
   a__sel(z0, z1) -> sel(z0, z1)
   mark(from(z0)) -> a__from(mark(z0))
   mark(sel(z0, z1)) -> a__sel(mark(z0), mark(z1))
   mark(cons(z0, z1)) -> cons(mark(z0), z1)
   mark(s(z0)) -> s(mark(z0))
   mark(0) -> 0
Tuples:
   A__FROM(z0) -> c(MARK(z0))
   A__SEL(0, cons(z0, z1)) -> c2(MARK(z0))
   MARK(from(z0)) -> c6(A__FROM(mark(z0)), MARK(z0))
   MARK(cons(z0, z1)) -> c9(MARK(z0))
   MARK(s(z0)) -> c10(MARK(z0))
   A__SEL(s(x0), cons(x1, s(z0))) -> c3(MARK(x0))
   A__SEL(s(x0), cons(x1, 0)) -> c3(MARK(x0))
   A__SEL(s(cons(z0, z1)), cons(x1, x2)) -> c3(MARK(cons(z0, z1)))
   A__SEL(s(x0), cons(x1, s(z0))) -> c4(MARK(s(z0)))
   A__SEL(s(cons(z0, z1)), cons(x1, x2)) -> c4(MARK(x2))
   MARK(sel(x0, s(z0))) -> c7(MARK(x0))
   MARK(sel(x0, 0)) -> c7(MARK(x0))
   MARK(sel(cons(z0, z1), x1)) -> c7(MARK(cons(z0, z1)))
   MARK(sel(x0, sel(z0, z1))) -> c8(A__SEL(mark(x0), a__sel(mark(z0), mark(z1))), MARK(sel(z0, z1)))
   MARK(sel(x0, cons(z0, z1))) -> c8(A__SEL(mark(x0), cons(mark(z0), z1)), MARK(cons(z0, z1)))
   MARK(sel(from(z0), x1)) -> c8(A__SEL(a__from(mark(z0)), mark(x1)), MARK(x1))
   MARK(sel(sel(z0, z1), x1)) -> c8(A__SEL(a__sel(mark(z0), mark(z1)), mark(x1)), MARK(x1))
   MARK(sel(s(z0), x1)) -> c8(A__SEL(s(mark(z0)), mark(x1)), MARK(x1))
   MARK(sel(0, x1)) -> c8(A__SEL(0, mark(x1)), MARK(x1))
   MARK(sel(x0, s(z0))) -> c8(MARK(s(z0)))
   MARK(sel(cons(z0, z1), x1)) -> c8(MARK(x1))
   A__SEL(s(x0), cons(x1, from(x2))) -> c3(A__SEL(mark(x0), cons(mark(mark(x2)), from(s(mark(x2))))), MARK(x0))
   A__SEL(s(x0), cons(x1, from(from(z0)))) -> c3(A__SEL(mark(x0), a__from(a__from(mark(z0)))), MARK(x0))
   A__SEL(s(x0), cons(x1, from(sel(z0, z1)))) -> c3(A__SEL(mark(x0), a__from(a__sel(mark(z0), mark(z1)))), MARK(x0))
   A__SEL(s(x0), cons(x1, from(cons(z0, z1)))) -> c3(A__SEL(mark(x0), a__from(cons(mark(z0), z1))), MARK(x0))
   A__SEL(s(x0), cons(x1, from(s(z0)))) -> c3(A__SEL(mark(x0), a__from(s(mark(z0)))), MARK(x0))
   A__SEL(s(x0), cons(x1, from(0))) -> c3(A__SEL(mark(x0), a__from(0)), MARK(x0))
   A__SEL(s(from(z0)), cons(x1, from(x2))) -> c3(A__SEL(a__from(mark(z0)), a__from(mark(x2))), MARK(from(z0)))
   A__SEL(s(sel(z0, z1)), cons(x1, from(x2))) -> c3(A__SEL(a__sel(mark(z0), mark(z1)), a__from(mark(x2))), MARK(sel(z0, z1)))
   A__SEL(s(s(z0)), cons(x1, from(x2))) -> c3(A__SEL(s(mark(z0)), a__from(mark(x2))), MARK(s(z0)))
   A__SEL(s(x0), cons(x1, from(x2))) -> c3(MARK(x0))
   A__SEL(s(cons(z0, z1)), cons(x1, from(x2))) -> c3(MARK(cons(z0, z1)))
   A__SEL(s(0), cons(x1, from(x2))) -> c3(A__SEL(0, a__from(mark(x2))))
   A__SEL(s(x0), cons(x1, sel(x2, from(z0)))) -> c3(A__SEL(mark(x0), a__sel(mark(x2), a__from(mark(z0)))), MARK(x0))
   A__SEL(s(x0), cons(x1, sel(x2, sel(z0, z1)))) -> c3(A__SEL(mark(x0), a__sel(mark(x2), a__sel(mark(z0), mark(z1)))), MARK(x0))
   A__SEL(s(x0), cons(x1, sel(x2, cons(z0, z1)))) -> c3(A__SEL(mark(x0), a__sel(mark(x2), cons(mark(z0), z1))), MARK(x0))
   A__SEL(s(x0), cons(x1, sel(x2, s(z0)))) -> c3(A__SEL(mark(x0), a__sel(mark(x2), s(mark(z0)))), MARK(x0))
   A__SEL(s(x0), cons(x1, sel(x2, 0))) -> c3(A__SEL(mark(x0), a__sel(mark(x2), 0)), MARK(x0))
   A__SEL(s(x0), cons(x1, sel(from(z0), x3))) -> c3(A__SEL(mark(x0), a__sel(a__from(mark(z0)), mark(x3))), MARK(x0))
   A__SEL(s(x0), cons(x1, sel(sel(z0, z1), x3))) -> c3(A__SEL(mark(x0), a__sel(a__sel(mark(z0), mark(z1)), mark(x3))), MARK(x0))
   A__SEL(s(x0), cons(x1, sel(cons(z0, z1), x3))) -> c3(A__SEL(mark(x0), a__sel(cons(mark(z0), z1), mark(x3))), MARK(x0))
   A__SEL(s(x0), cons(x1, sel(s(z0), x3))) -> c3(A__SEL(mark(x0), a__sel(s(mark(z0)), mark(x3))), MARK(x0))
   A__SEL(s(x0), cons(x1, sel(0, x3))) -> c3(A__SEL(mark(x0), a__sel(0, mark(x3))), MARK(x0))
   A__SEL(s(from(z0)), cons(x1, sel(x2, x3))) -> c3(A__SEL(a__from(mark(z0)), a__sel(mark(x2), mark(x3))), MARK(from(z0)))
   A__SEL(s(sel(z0, z1)), cons(x1, sel(x2, x3))) -> c3(A__SEL(a__sel(mark(z0), mark(z1)), a__sel(mark(x2), mark(x3))), MARK(sel(z0, z1)))
   A__SEL(s(s(z0)), cons(x1, sel(x2, x3))) -> c3(A__SEL(s(mark(z0)), a__sel(mark(x2), mark(x3))), MARK(s(z0)))
   A__SEL(s(x0), cons(x1, sel(x2, x3))) -> c3(MARK(x0))
   A__SEL(s(cons(z0, z1)), cons(x1, sel(x2, x3))) -> c3(MARK(cons(z0, z1)))
   A__SEL(s(0), cons(x1, sel(x2, x3))) -> c3(A__SEL(0, a__sel(mark(x2), mark(x3))))
   A__SEL(s(x0), cons(x1, cons(from(z0), x3))) -> c3(A__SEL(mark(x0), cons(a__from(mark(z0)), x3)), MARK(x0))
   A__SEL(s(x0), cons(x1, cons(sel(z0, z1), x3))) -> c3(A__SEL(mark(x0), cons(a__sel(mark(z0), mark(z1)), x3)), MARK(x0))
   A__SEL(s(x0), cons(x1, cons(cons(z0, z1), x3))) -> c3(A__SEL(mark(x0), cons(cons(mark(z0), z1), x3)), MARK(x0))
   A__SEL(s(x0), cons(x1, cons(s(z0), x3))) -> c3(A__SEL(mark(x0), cons(s(mark(z0)), x3)), MARK(x0))
   A__SEL(s(x0), cons(x1, cons(0, x3))) -> c3(A__SEL(mark(x0), cons(0, x3)), MARK(x0))
   A__SEL(s(from(z0)), cons(x1, cons(x2, x3))) -> c3(A__SEL(a__from(mark(z0)), cons(mark(x2), x3)), MARK(from(z0)))
   A__SEL(s(sel(z0, z1)), cons(x1, cons(x2, x3))) -> c3(A__SEL(a__sel(mark(z0), mark(z1)), cons(mark(x2), x3)), MARK(sel(z0, z1)))
   A__SEL(s(s(z0)), cons(x1, cons(x2, x3))) -> c3(A__SEL(s(mark(z0)), cons(mark(x2), x3)), MARK(s(z0)))
   A__SEL(s(cons(z0, z1)), cons(x1, cons(x2, x3))) -> c3(MARK(cons(z0, z1)))
   A__SEL(s(0), cons(x1, cons(x2, x3))) -> c3(A__SEL(0, cons(mark(x2), x3)))
   A__SEL(s(from(from(z0))), cons(x1, x2)) -> c3(A__SEL(a__from(a__from(mark(z0))), mark(x2)), MARK(from(from(z0))))
   A__SEL(s(from(sel(z0, z1))), cons(x1, x2)) -> c3(A__SEL(a__from(a__sel(mark(z0), mark(z1))), mark(x2)), MARK(from(sel(z0, z1))))
   A__SEL(s(from(cons(z0, z1))), cons(x1, x2)) -> c3(A__SEL(a__from(cons(mark(z0), z1)), mark(x2)), MARK(from(cons(z0, z1))))
   A__SEL(s(from(s(z0))), cons(x1, x2)) -> c3(A__SEL(a__from(s(mark(z0))), mark(x2)), MARK(from(s(z0))))
   A__SEL(s(from(0)), cons(x1, x2)) -> c3(A__SEL(a__from(0), mark(x2)), MARK(from(0)))
   A__SEL(s(from(x0)), cons(x1, x2)) -> c3(MARK(from(x0)))
   A__SEL(s(from(x0)), cons(x1, s(z0))) -> c3(MARK(from(x0)))
   A__SEL(s(from(x0)), cons(x1, 0)) -> c3(MARK(from(x0)))
   A__SEL(s(sel(x0, from(z0))), cons(x2, x3)) -> c3(A__SEL(a__sel(mark(x0), a__from(mark(z0))), mark(x3)), MARK(sel(x0, from(z0))))
   A__SEL(s(sel(x0, sel(z0, z1))), cons(x2, x3)) -> c3(A__SEL(a__sel(mark(x0), a__sel(mark(z0), mark(z1))), mark(x3)), MARK(sel(x0, sel(z0, z1))))
   A__SEL(s(sel(x0, cons(z0, z1))), cons(x2, x3)) -> c3(A__SEL(a__sel(mark(x0), cons(mark(z0), z1)), mark(x3)), MARK(sel(x0, cons(z0, z1))))
   A__SEL(s(sel(x0, s(z0))), cons(x2, x3)) -> c3(A__SEL(a__sel(mark(x0), s(mark(z0))), mark(x3)), MARK(sel(x0, s(z0))))
   A__SEL(s(sel(x0, 0)), cons(x2, x3)) -> c3(A__SEL(a__sel(mark(x0), 0), mark(x3)), MARK(sel(x0, 0)))
   A__SEL(s(sel(from(z0), x1)), cons(x2, x3)) -> c3(A__SEL(a__sel(a__from(mark(z0)), mark(x1)), mark(x3)), MARK(sel(from(z0), x1)))
   A__SEL(s(sel(sel(z0, z1), x1)), cons(x2, x3)) -> c3(A__SEL(a__sel(a__sel(mark(z0), mark(z1)), mark(x1)), mark(x3)), MARK(sel(sel(z0, z1), x1)))
   A__SEL(s(sel(cons(z0, z1), x1)), cons(x2, x3)) -> c3(A__SEL(a__sel(cons(mark(z0), z1), mark(x1)), mark(x3)), MARK(sel(cons(z0, z1), x1)))
   A__SEL(s(sel(s(z0), x1)), cons(x2, x3)) -> c3(A__SEL(a__sel(s(mark(z0)), mark(x1)), mark(x3)), MARK(sel(s(z0), x1)))
   A__SEL(s(sel(0, x1)), cons(x2, x3)) -> c3(A__SEL(a__sel(0, mark(x1)), mark(x3)), MARK(sel(0, x1)))
   A__SEL(s(sel(x0, x1)), cons(x2, s(z0))) -> c3(MARK(sel(x0, x1)))
   A__SEL(s(sel(x0, x1)), cons(x2, 0)) -> c3(MARK(sel(x0, x1)))
   A__SEL(s(sel(x0, x1)), cons(x2, x3)) -> c3(MARK(sel(x0, x1)))
   A__SEL(s(s(from(z0))), cons(x1, x2)) -> c3(A__SEL(s(a__from(mark(z0))), mark(x2)), MARK(s(from(z0))))
   A__SEL(s(s(sel(z0, z1))), cons(x1, x2)) -> c3(A__SEL(s(a__sel(mark(z0), mark(z1))), mark(x2)), MARK(s(sel(z0, z1))))
   A__SEL(s(s(cons(z0, z1))), cons(x1, x2)) -> c3(A__SEL(s(cons(mark(z0), z1)), mark(x2)), MARK(s(cons(z0, z1))))
   A__SEL(s(s(s(z0))), cons(x1, x2)) -> c3(A__SEL(s(s(mark(z0))), mark(x2)), MARK(s(s(z0))))
   A__SEL(s(s(0)), cons(x1, x2)) -> c3(A__SEL(s(0), mark(x2)), MARK(s(0)))
   A__SEL(s(s(x0)), cons(x1, x2)) -> c3(MARK(s(x0)))
   A__SEL(s(s(x0)), cons(x1, s(z0))) -> c3(MARK(s(x0)))
   A__SEL(s(s(x0)), cons(x1, 0)) -> c3(MARK(s(x0)))
   A__SEL(s(x0), cons(x1, from(x2))) -> c4(A__SEL(mark(x0), cons(mark(mark(x2)), from(s(mark(x2))))), MARK(from(x2)))
   A__SEL(s(x0), cons(x1, from(from(z0)))) -> c4(A__SEL(mark(x0), a__from(a__from(mark(z0)))), MARK(from(from(z0))))
   A__SEL(s(x0), cons(x1, from(sel(z0, z1)))) -> c4(A__SEL(mark(x0), a__from(a__sel(mark(z0), mark(z1)))), MARK(from(sel(z0, z1))))
   A__SEL(s(x0), cons(x1, from(cons(z0, z1)))) -> c4(A__SEL(mark(x0), a__from(cons(mark(z0), z1))), MARK(from(cons(z0, z1))))
   A__SEL(s(x0), cons(x1, from(s(z0)))) -> c4(A__SEL(mark(x0), a__from(s(mark(z0)))), MARK(from(s(z0))))
   A__SEL(s(x0), cons(x1, from(0))) -> c4(A__SEL(mark(x0), a__from(0)), MARK(from(0)))
   A__SEL(s(from(z0)), cons(x1, from(x2))) -> c4(A__SEL(a__from(mark(z0)), a__from(mark(x2))), MARK(from(x2)))
   A__SEL(s(sel(z0, z1)), cons(x1, from(x2))) -> c4(A__SEL(a__sel(mark(z0), mark(z1)), a__from(mark(x2))), MARK(from(x2)))
   A__SEL(s(s(z0)), cons(x1, from(x2))) -> c4(A__SEL(s(mark(z0)), a__from(mark(x2))), MARK(from(x2)))
   A__SEL(s(0), cons(x1, from(x2))) -> c4(A__SEL(0, a__from(mark(x2))), MARK(from(x2)))
   A__SEL(s(x0), cons(x1, from(x2))) -> c4(MARK(from(x2)))
   A__SEL(s(cons(z0, z1)), cons(x1, from(x2))) -> c4(MARK(from(x2)))
   A__SEL(s(x0), cons(x1, sel(x2, from(z0)))) -> c4(A__SEL(mark(x0), a__sel(mark(x2), a__from(mark(z0)))), MARK(sel(x2, from(z0))))
   A__SEL(s(x0), cons(x1, sel(x2, sel(z0, z1)))) -> c4(A__SEL(mark(x0), a__sel(mark(x2), a__sel(mark(z0), mark(z1)))), MARK(sel(x2, sel(z0, z1))))
   A__SEL(s(x0), cons(x1, sel(x2, cons(z0, z1)))) -> c4(A__SEL(mark(x0), a__sel(mark(x2), cons(mark(z0), z1))), MARK(sel(x2, cons(z0, z1))))
   A__SEL(s(x0), cons(x1, sel(x2, s(z0)))) -> c4(A__SEL(mark(x0), a__sel(mark(x2), s(mark(z0)))), MARK(sel(x2, s(z0))))
   A__SEL(s(x0), cons(x1, sel(x2, 0))) -> c4(A__SEL(mark(x0), a__sel(mark(x2), 0)), MARK(sel(x2, 0)))
   A__SEL(s(x0), cons(x1, sel(from(z0), x3))) -> c4(A__SEL(mark(x0), a__sel(a__from(mark(z0)), mark(x3))), MARK(sel(from(z0), x3)))
   A__SEL(s(x0), cons(x1, sel(sel(z0, z1), x3))) -> c4(A__SEL(mark(x0), a__sel(a__sel(mark(z0), mark(z1)), mark(x3))), MARK(sel(sel(z0, z1), x3)))
   A__SEL(s(x0), cons(x1, sel(cons(z0, z1), x3))) -> c4(A__SEL(mark(x0), a__sel(cons(mark(z0), z1), mark(x3))), MARK(sel(cons(z0, z1), x3)))
   A__SEL(s(x0), cons(x1, sel(s(z0), x3))) -> c4(A__SEL(mark(x0), a__sel(s(mark(z0)), mark(x3))), MARK(sel(s(z0), x3)))
   A__SEL(s(x0), cons(x1, sel(0, x3))) -> c4(A__SEL(mark(x0), a__sel(0, mark(x3))), MARK(sel(0, x3)))
   A__SEL(s(from(z0)), cons(x1, sel(x2, x3))) -> c4(A__SEL(a__from(mark(z0)), a__sel(mark(x2), mark(x3))), MARK(sel(x2, x3)))
   A__SEL(s(sel(z0, z1)), cons(x1, sel(x2, x3))) -> c4(A__SEL(a__sel(mark(z0), mark(z1)), a__sel(mark(x2), mark(x3))), MARK(sel(x2, x3)))
   A__SEL(s(s(z0)), cons(x1, sel(x2, x3))) -> c4(A__SEL(s(mark(z0)), a__sel(mark(x2), mark(x3))), MARK(sel(x2, x3)))
   A__SEL(s(0), cons(x1, sel(x2, x3))) -> c4(A__SEL(0, a__sel(mark(x2), mark(x3))), MARK(sel(x2, x3)))
   A__SEL(s(x0), cons(x1, sel(x2, x3))) -> c4(MARK(sel(x2, x3)))
   A__SEL(s(cons(z0, z1)), cons(x1, sel(x2, x3))) -> c4(MARK(sel(x2, x3)))
   A__SEL(s(x0), cons(x1, cons(from(z0), x3))) -> c4(A__SEL(mark(x0), cons(a__from(mark(z0)), x3)), MARK(cons(from(z0), x3)))
   A__SEL(s(x0), cons(x1, cons(sel(z0, z1), x3))) -> c4(A__SEL(mark(x0), cons(a__sel(mark(z0), mark(z1)), x3)), MARK(cons(sel(z0, z1), x3)))
   A__SEL(s(x0), cons(x1, cons(cons(z0, z1), x3))) -> c4(A__SEL(mark(x0), cons(cons(mark(z0), z1), x3)), MARK(cons(cons(z0, z1), x3)))
   A__SEL(s(x0), cons(x1, cons(s(z0), x3))) -> c4(A__SEL(mark(x0), cons(s(mark(z0)), x3)), MARK(cons(s(z0), x3)))
   A__SEL(s(x0), cons(x1, cons(0, x3))) -> c4(A__SEL(mark(x0), cons(0, x3)), MARK(cons(0, x3)))
   A__SEL(s(from(z0)), cons(x1, cons(x2, x3))) -> c4(A__SEL(a__from(mark(z0)), cons(mark(x2), x3)), MARK(cons(x2, x3)))
   A__SEL(s(sel(z0, z1)), cons(x1, cons(x2, x3))) -> c4(A__SEL(a__sel(mark(z0), mark(z1)), cons(mark(x2), x3)), MARK(cons(x2, x3)))
   A__SEL(s(s(z0)), cons(x1, cons(x2, x3))) -> c4(A__SEL(s(mark(z0)), cons(mark(x2), x3)), MARK(cons(x2, x3)))
   A__SEL(s(0), cons(x1, cons(x2, x3))) -> c4(A__SEL(0, cons(mark(x2), x3)), MARK(cons(x2, x3)))
   A__SEL(s(x0), cons(x1, cons(x2, x3))) -> c4(MARK(cons(x2, x3)))
   A__SEL(s(cons(z0, z1)), cons(x1, cons(x2, x3))) -> c4(MARK(cons(x2, x3)))
   A__SEL(s(from(from(z0))), cons(x1, x2)) -> c4(A__SEL(a__from(a__from(mark(z0))), mark(x2)), MARK(x2))
   A__SEL(s(from(sel(z0, z1))), cons(x1, x2)) -> c4(A__SEL(a__from(a__sel(mark(z0), mark(z1))), mark(x2)), MARK(x2))
   A__SEL(s(from(cons(z0, z1))), cons(x1, x2)) -> c4(A__SEL(a__from(cons(mark(z0), z1)), mark(x2)), MARK(x2))
   A__SEL(s(from(s(z0))), cons(x1, x2)) -> c4(A__SEL(a__from(s(mark(z0))), mark(x2)), MARK(x2))
   A__SEL(s(from(0)), cons(x1, x2)) -> c4(A__SEL(a__from(0), mark(x2)), MARK(x2))
   A__SEL(s(from(x0)), cons(x1, s(z0))) -> c4(MARK(s(z0)))
   A__SEL(s(from(x0)), cons(x1, x2)) -> c4(MARK(x2))
   A__SEL(s(sel(x0, from(z0))), cons(x2, x3)) -> c4(A__SEL(a__sel(mark(x0), a__from(mark(z0))), mark(x3)), MARK(x3))
   A__SEL(s(sel(x0, sel(z0, z1))), cons(x2, x3)) -> c4(A__SEL(a__sel(mark(x0), a__sel(mark(z0), mark(z1))), mark(x3)), MARK(x3))
   A__SEL(s(sel(x0, cons(z0, z1))), cons(x2, x3)) -> c4(A__SEL(a__sel(mark(x0), cons(mark(z0), z1)), mark(x3)), MARK(x3))
   A__SEL(s(sel(x0, s(z0))), cons(x2, x3)) -> c4(A__SEL(a__sel(mark(x0), s(mark(z0))), mark(x3)), MARK(x3))
   A__SEL(s(sel(x0, 0)), cons(x2, x3)) -> c4(A__SEL(a__sel(mark(x0), 0), mark(x3)), MARK(x3))
   A__SEL(s(sel(from(z0), x1)), cons(x2, x3)) -> c4(A__SEL(a__sel(a__from(mark(z0)), mark(x1)), mark(x3)), MARK(x3))
   A__SEL(s(sel(sel(z0, z1), x1)), cons(x2, x3)) -> c4(A__SEL(a__sel(a__sel(mark(z0), mark(z1)), mark(x1)), mark(x3)), MARK(x3))
   A__SEL(s(sel(cons(z0, z1), x1)), cons(x2, x3)) -> c4(A__SEL(a__sel(cons(mark(z0), z1), mark(x1)), mark(x3)), MARK(x3))
   A__SEL(s(sel(s(z0), x1)), cons(x2, x3)) -> c4(A__SEL(a__sel(s(mark(z0)), mark(x1)), mark(x3)), MARK(x3))
   A__SEL(s(sel(0, x1)), cons(x2, x3)) -> c4(A__SEL(a__sel(0, mark(x1)), mark(x3)), MARK(x3))
   A__SEL(s(sel(x0, x1)), cons(x2, s(z0))) -> c4(MARK(s(z0)))
   A__SEL(s(sel(x0, x1)), cons(x2, x3)) -> c4(MARK(x3))
   A__SEL(s(s(from(z0))), cons(x1, x2)) -> c4(A__SEL(s(a__from(mark(z0))), mark(x2)), MARK(x2))
   A__SEL(s(s(sel(z0, z1))), cons(x1, x2)) -> c4(A__SEL(s(a__sel(mark(z0), mark(z1))), mark(x2)), MARK(x2))
   A__SEL(s(s(cons(z0, z1))), cons(x1, x2)) -> c4(A__SEL(s(cons(mark(z0), z1)), mark(x2)), MARK(x2))
   A__SEL(s(s(s(z0))), cons(x1, x2)) -> c4(A__SEL(s(s(mark(z0))), mark(x2)), MARK(x2))
   A__SEL(s(s(0)), cons(x1, x2)) -> c4(A__SEL(s(0), mark(x2)), MARK(x2))
   A__SEL(s(s(x0)), cons(x1, s(z0))) -> c4(MARK(s(z0)))
   A__SEL(s(0), cons(x0, s(z0))) -> c4(MARK(s(z0)))
   MARK(sel(x0, from(x1))) -> c7(A__SEL(mark(x0), cons(mark(mark(x1)), from(s(mark(x1))))), MARK(x0))
   MARK(sel(x0, from(from(z0)))) -> c7(A__SEL(mark(x0), a__from(a__from(mark(z0)))), MARK(x0))
   MARK(sel(x0, from(sel(z0, z1)))) -> c7(A__SEL(mark(x0), a__from(a__sel(mark(z0), mark(z1)))), MARK(x0))
   MARK(sel(x0, from(cons(z0, z1)))) -> c7(A__SEL(mark(x0), a__from(cons(mark(z0), z1))), MARK(x0))
   MARK(sel(x0, from(s(z0)))) -> c7(A__SEL(mark(x0), a__from(s(mark(z0)))), MARK(x0))
   MARK(sel(x0, from(0))) -> c7(A__SEL(mark(x0), a__from(0)), MARK(x0))
   MARK(sel(from(z0), from(x1))) -> c7(A__SEL(a__from(mark(z0)), a__from(mark(x1))), MARK(from(z0)))
   MARK(sel(sel(z0, z1), from(x1))) -> c7(A__SEL(a__sel(mark(z0), mark(z1)), a__from(mark(x1))), MARK(sel(z0, z1)))
   MARK(sel(s(z0), from(x1))) -> c7(A__SEL(s(mark(z0)), a__from(mark(x1))), MARK(s(z0)))
   MARK(sel(x0, from(x1))) -> c7(MARK(x0))
   MARK(sel(cons(z0, z1), from(x1))) -> c7(MARK(cons(z0, z1)))
   MARK(sel(0, from(x1))) -> c7(A__SEL(0, a__from(mark(x1))))
   MARK(sel(x0, sel(x1, from(z0)))) -> c7(A__SEL(mark(x0), a__sel(mark(x1), a__from(mark(z0)))), MARK(x0))
   MARK(sel(x0, sel(x1, sel(z0, z1)))) -> c7(A__SEL(mark(x0), a__sel(mark(x1), a__sel(mark(z0), mark(z1)))), MARK(x0))
   MARK(sel(x0, sel(x1, cons(z0, z1)))) -> c7(A__SEL(mark(x0), a__sel(mark(x1), cons(mark(z0), z1))), MARK(x0))
   MARK(sel(x0, sel(x1, s(z0)))) -> c7(A__SEL(mark(x0), a__sel(mark(x1), s(mark(z0)))), MARK(x0))
   MARK(sel(x0, sel(x1, 0))) -> c7(A__SEL(mark(x0), a__sel(mark(x1), 0)), MARK(x0))
   MARK(sel(x0, sel(from(z0), x2))) -> c7(A__SEL(mark(x0), a__sel(a__from(mark(z0)), mark(x2))), MARK(x0))
   MARK(sel(x0, sel(sel(z0, z1), x2))) -> c7(A__SEL(mark(x0), a__sel(a__sel(mark(z0), mark(z1)), mark(x2))), MARK(x0))
   MARK(sel(x0, sel(cons(z0, z1), x2))) -> c7(A__SEL(mark(x0), a__sel(cons(mark(z0), z1), mark(x2))), MARK(x0))
   MARK(sel(x0, sel(s(z0), x2))) -> c7(A__SEL(mark(x0), a__sel(s(mark(z0)), mark(x2))), MARK(x0))
   MARK(sel(x0, sel(0, x2))) -> c7(A__SEL(mark(x0), a__sel(0, mark(x2))), MARK(x0))
   MARK(sel(from(z0), sel(x1, x2))) -> c7(A__SEL(a__from(mark(z0)), a__sel(mark(x1), mark(x2))), MARK(from(z0)))
   MARK(sel(sel(z0, z1), sel(x1, x2))) -> c7(A__SEL(a__sel(mark(z0), mark(z1)), a__sel(mark(x1), mark(x2))), MARK(sel(z0, z1)))
   MARK(sel(s(z0), sel(x1, x2))) -> c7(A__SEL(s(mark(z0)), a__sel(mark(x1), mark(x2))), MARK(s(z0)))
   MARK(sel(x0, sel(x1, x2))) -> c7(MARK(x0))
   MARK(sel(cons(z0, z1), sel(x1, x2))) -> c7(MARK(cons(z0, z1)))
   MARK(sel(0, sel(x1, x2))) -> c7(A__SEL(0, a__sel(mark(x1), mark(x2))))
   MARK(sel(x0, cons(from(z0), x2))) -> c7(A__SEL(mark(x0), cons(a__from(mark(z0)), x2)), MARK(x0))
   MARK(sel(x0, cons(sel(z0, z1), x2))) -> c7(A__SEL(mark(x0), cons(a__sel(mark(z0), mark(z1)), x2)), MARK(x0))
   MARK(sel(x0, cons(cons(z0, z1), x2))) -> c7(A__SEL(mark(x0), cons(cons(mark(z0), z1), x2)), MARK(x0))
   MARK(sel(x0, cons(s(z0), x2))) -> c7(A__SEL(mark(x0), cons(s(mark(z0)), x2)), MARK(x0))
   MARK(sel(x0, cons(0, x2))) -> c7(A__SEL(mark(x0), cons(0, x2)), MARK(x0))
   MARK(sel(from(z0), cons(x1, x2))) -> c7(A__SEL(a__from(mark(z0)), cons(mark(x1), x2)), MARK(from(z0)))
   MARK(sel(sel(z0, z1), cons(x1, x2))) -> c7(A__SEL(a__sel(mark(z0), mark(z1)), cons(mark(x1), x2)), MARK(sel(z0, z1)))
   MARK(sel(s(z0), cons(x1, x2))) -> c7(A__SEL(s(mark(z0)), cons(mark(x1), x2)), MARK(s(z0)))
   MARK(sel(cons(z0, z1), cons(x1, x2))) -> c7(MARK(cons(z0, z1)))
   MARK(sel(0, cons(x1, x2))) -> c7(A__SEL(0, cons(mark(x1), x2)))
   MARK(sel(from(from(z0)), x1)) -> c7(A__SEL(a__from(a__from(mark(z0))), mark(x1)), MARK(from(from(z0))))
   MARK(sel(from(sel(z0, z1)), x1)) -> c7(A__SEL(a__from(a__sel(mark(z0), mark(z1))), mark(x1)), MARK(from(sel(z0, z1))))
   MARK(sel(from(cons(z0, z1)), x1)) -> c7(A__SEL(a__from(cons(mark(z0), z1)), mark(x1)), MARK(from(cons(z0, z1))))
   MARK(sel(from(s(z0)), x1)) -> c7(A__SEL(a__from(s(mark(z0))), mark(x1)), MARK(from(s(z0))))
   MARK(sel(from(0), x1)) -> c7(A__SEL(a__from(0), mark(x1)), MARK(from(0)))
   MARK(sel(from(x0), x1)) -> c7(MARK(from(x0)))
   MARK(sel(from(x0), s(z0))) -> c7(MARK(from(x0)))
   MARK(sel(from(x0), 0)) -> c7(MARK(from(x0)))
   MARK(sel(sel(x0, from(z0)), x2)) -> c7(A__SEL(a__sel(mark(x0), a__from(mark(z0))), mark(x2)), MARK(sel(x0, from(z0))))
   MARK(sel(sel(x0, sel(z0, z1)), x2)) -> c7(A__SEL(a__sel(mark(x0), a__sel(mark(z0), mark(z1))), mark(x2)), MARK(sel(x0, sel(z0, z1))))
   MARK(sel(sel(x0, cons(z0, z1)), x2)) -> c7(A__SEL(a__sel(mark(x0), cons(mark(z0), z1)), mark(x2)), MARK(sel(x0, cons(z0, z1))))
   MARK(sel(sel(x0, s(z0)), x2)) -> c7(A__SEL(a__sel(mark(x0), s(mark(z0))), mark(x2)), MARK(sel(x0, s(z0))))
   MARK(sel(sel(x0, 0), x2)) -> c7(A__SEL(a__sel(mark(x0), 0), mark(x2)), MARK(sel(x0, 0)))
   MARK(sel(sel(from(z0), x1), x2)) -> c7(A__SEL(a__sel(a__from(mark(z0)), mark(x1)), mark(x2)), MARK(sel(from(z0), x1)))
   MARK(sel(sel(sel(z0, z1), x1), x2)) -> c7(A__SEL(a__sel(a__sel(mark(z0), mark(z1)), mark(x1)), mark(x2)), MARK(sel(sel(z0, z1), x1)))
   MARK(sel(sel(cons(z0, z1), x1), x2)) -> c7(A__SEL(a__sel(cons(mark(z0), z1), mark(x1)), mark(x2)), MARK(sel(cons(z0, z1), x1)))
   MARK(sel(sel(s(z0), x1), x2)) -> c7(A__SEL(a__sel(s(mark(z0)), mark(x1)), mark(x2)), MARK(sel(s(z0), x1)))
   MARK(sel(sel(0, x1), x2)) -> c7(A__SEL(a__sel(0, mark(x1)), mark(x2)), MARK(sel(0, x1)))
   MARK(sel(sel(x0, x1), s(z0))) -> c7(MARK(sel(x0, x1)))
   MARK(sel(sel(x0, x1), 0)) -> c7(MARK(sel(x0, x1)))
   MARK(sel(sel(x0, x1), x2)) -> c7(MARK(sel(x0, x1)))
   MARK(sel(s(from(z0)), x1)) -> c7(A__SEL(s(a__from(mark(z0))), mark(x1)), MARK(s(from(z0))))
   MARK(sel(s(sel(z0, z1)), x1)) -> c7(A__SEL(s(a__sel(mark(z0), mark(z1))), mark(x1)), MARK(s(sel(z0, z1))))
   MARK(sel(s(cons(z0, z1)), x1)) -> c7(A__SEL(s(cons(mark(z0), z1)), mark(x1)), MARK(s(cons(z0, z1))))
   MARK(sel(s(s(z0)), x1)) -> c7(A__SEL(s(s(mark(z0))), mark(x1)), MARK(s(s(z0))))
   MARK(sel(s(0), x1)) -> c7(A__SEL(s(0), mark(x1)), MARK(s(0)))
   MARK(sel(s(x0), x1)) -> c7(MARK(s(x0)))
   MARK(sel(s(x0), s(z0))) -> c7(MARK(s(x0)))
   MARK(sel(s(x0), 0)) -> c7(MARK(s(x0)))
   MARK(sel(x0, from(x1))) -> c8(A__SEL(mark(x0), cons(mark(mark(x1)), from(s(mark(x1))))), MARK(from(x1)))
   MARK(sel(x0, from(x1))) -> c8(A__SEL(mark(x0), from(mark(x1))), MARK(from(x1)))
   MARK(sel(x0, from(from(z0)))) -> c8(A__SEL(mark(x0), a__from(a__from(mark(z0)))), MARK(from(from(z0))))
   MARK(sel(x0, from(sel(z0, z1)))) -> c8(A__SEL(mark(x0), a__from(a__sel(mark(z0), mark(z1)))), MARK(from(sel(z0, z1))))
   MARK(sel(x0, from(cons(z0, z1)))) -> c8(A__SEL(mark(x0), a__from(cons(mark(z0), z1))), MARK(from(cons(z0, z1))))
   MARK(sel(x0, from(s(z0)))) -> c8(A__SEL(mark(x0), a__from(s(mark(z0)))), MARK(from(s(z0))))
   MARK(sel(x0, from(0))) -> c8(A__SEL(mark(x0), a__from(0)), MARK(from(0)))
   MARK(sel(from(z0), from(x1))) -> c8(A__SEL(a__from(mark(z0)), a__from(mark(x1))), MARK(from(x1)))
   MARK(sel(sel(z0, z1), from(x1))) -> c8(A__SEL(a__sel(mark(z0), mark(z1)), a__from(mark(x1))), MARK(from(x1)))
   MARK(sel(cons(z0, z1), from(x1))) -> c8(A__SEL(cons(mark(z0), z1), a__from(mark(x1))), MARK(from(x1)))
   MARK(sel(s(z0), from(x1))) -> c8(A__SEL(s(mark(z0)), a__from(mark(x1))), MARK(from(x1)))
   MARK(sel(0, from(x1))) -> c8(A__SEL(0, a__from(mark(x1))), MARK(from(x1)))
   MARK(sel(x0, from(x1))) -> c8(MARK(from(x1)))
S tuples:
   A__FROM(z0) -> c(MARK(z0))
   A__SEL(0, cons(z0, z1)) -> c2(MARK(z0))
   MARK(from(z0)) -> c6(A__FROM(mark(z0)), MARK(z0))
   MARK(cons(z0, z1)) -> c9(MARK(z0))
   MARK(s(z0)) -> c10(MARK(z0))
   A__SEL(s(x0), cons(x1, s(z0))) -> c3(MARK(x0))
   A__SEL(s(x0), cons(x1, 0)) -> c3(MARK(x0))
   A__SEL(s(cons(z0, z1)), cons(x1, x2)) -> c3(MARK(cons(z0, z1)))
   A__SEL(s(x0), cons(x1, s(z0))) -> c4(MARK(s(z0)))
   A__SEL(s(cons(z0, z1)), cons(x1, x2)) -> c4(MARK(x2))
   MARK(sel(x0, s(z0))) -> c7(MARK(x0))
   MARK(sel(x0, 0)) -> c7(MARK(x0))
   MARK(sel(cons(z0, z1), x1)) -> c7(MARK(cons(z0, z1)))
   MARK(sel(x0, sel(z0, z1))) -> c8(A__SEL(mark(x0), a__sel(mark(z0), mark(z1))), MARK(sel(z0, z1)))
   MARK(sel(x0, cons(z0, z1))) -> c8(A__SEL(mark(x0), cons(mark(z0), z1)), MARK(cons(z0, z1)))
   MARK(sel(from(z0), x1)) -> c8(A__SEL(a__from(mark(z0)), mark(x1)), MARK(x1))
   MARK(sel(sel(z0, z1), x1)) -> c8(A__SEL(a__sel(mark(z0), mark(z1)), mark(x1)), MARK(x1))
   MARK(sel(s(z0), x1)) -> c8(A__SEL(s(mark(z0)), mark(x1)), MARK(x1))
   MARK(sel(0, x1)) -> c8(A__SEL(0, mark(x1)), MARK(x1))
   MARK(sel(x0, s(z0))) -> c8(MARK(s(z0)))
   MARK(sel(cons(z0, z1), x1)) -> c8(MARK(x1))
   A__SEL(s(x0), cons(x1, from(x2))) -> c3(A__SEL(mark(x0), cons(mark(mark(x2)), from(s(mark(x2))))), MARK(x0))
   A__SEL(s(x0), cons(x1, from(from(z0)))) -> c3(A__SEL(mark(x0), a__from(a__from(mark(z0)))), MARK(x0))
   A__SEL(s(x0), cons(x1, from(sel(z0, z1)))) -> c3(A__SEL(mark(x0), a__from(a__sel(mark(z0), mark(z1)))), MARK(x0))
   A__SEL(s(x0), cons(x1, from(cons(z0, z1)))) -> c3(A__SEL(mark(x0), a__from(cons(mark(z0), z1))), MARK(x0))
   A__SEL(s(x0), cons(x1, from(s(z0)))) -> c3(A__SEL(mark(x0), a__from(s(mark(z0)))), MARK(x0))
   A__SEL(s(x0), cons(x1, from(0))) -> c3(A__SEL(mark(x0), a__from(0)), MARK(x0))
   A__SEL(s(from(z0)), cons(x1, from(x2))) -> c3(A__SEL(a__from(mark(z0)), a__from(mark(x2))), MARK(from(z0)))
   A__SEL(s(sel(z0, z1)), cons(x1, from(x2))) -> c3(A__SEL(a__sel(mark(z0), mark(z1)), a__from(mark(x2))), MARK(sel(z0, z1)))
   A__SEL(s(s(z0)), cons(x1, from(x2))) -> c3(A__SEL(s(mark(z0)), a__from(mark(x2))), MARK(s(z0)))
   A__SEL(s(x0), cons(x1, from(x2))) -> c3(MARK(x0))
   A__SEL(s(cons(z0, z1)), cons(x1, from(x2))) -> c3(MARK(cons(z0, z1)))
   A__SEL(s(0), cons(x1, from(x2))) -> c3(A__SEL(0, a__from(mark(x2))))
   A__SEL(s(x0), cons(x1, sel(x2, from(z0)))) -> c3(A__SEL(mark(x0), a__sel(mark(x2), a__from(mark(z0)))), MARK(x0))
   A__SEL(s(x0), cons(x1, sel(x2, sel(z0, z1)))) -> c3(A__SEL(mark(x0), a__sel(mark(x2), a__sel(mark(z0), mark(z1)))), MARK(x0))
   A__SEL(s(x0), cons(x1, sel(x2, cons(z0, z1)))) -> c3(A__SEL(mark(x0), a__sel(mark(x2), cons(mark(z0), z1))), MARK(x0))
   A__SEL(s(x0), cons(x1, sel(x2, s(z0)))) -> c3(A__SEL(mark(x0), a__sel(mark(x2), s(mark(z0)))), MARK(x0))
   A__SEL(s(x0), cons(x1, sel(x2, 0))) -> c3(A__SEL(mark(x0), a__sel(mark(x2), 0)), MARK(x0))
   A__SEL(s(x0), cons(x1, sel(from(z0), x3))) -> c3(A__SEL(mark(x0), a__sel(a__from(mark(z0)), mark(x3))), MARK(x0))
   A__SEL(s(x0), cons(x1, sel(sel(z0, z1), x3))) -> c3(A__SEL(mark(x0), a__sel(a__sel(mark(z0), mark(z1)), mark(x3))), MARK(x0))
   A__SEL(s(x0), cons(x1, sel(cons(z0, z1), x3))) -> c3(A__SEL(mark(x0), a__sel(cons(mark(z0), z1), mark(x3))), MARK(x0))
   A__SEL(s(x0), cons(x1, sel(s(z0), x3))) -> c3(A__SEL(mark(x0), a__sel(s(mark(z0)), mark(x3))), MARK(x0))
   A__SEL(s(x0), cons(x1, sel(0, x3))) -> c3(A__SEL(mark(x0), a__sel(0, mark(x3))), MARK(x0))
   A__SEL(s(from(z0)), cons(x1, sel(x2, x3))) -> c3(A__SEL(a__from(mark(z0)), a__sel(mark(x2), mark(x3))), MARK(from(z0)))
   A__SEL(s(sel(z0, z1)), cons(x1, sel(x2, x3))) -> c3(A__SEL(a__sel(mark(z0), mark(z1)), a__sel(mark(x2), mark(x3))), MARK(sel(z0, z1)))
   A__SEL(s(s(z0)), cons(x1, sel(x2, x3))) -> c3(A__SEL(s(mark(z0)), a__sel(mark(x2), mark(x3))), MARK(s(z0)))
   A__SEL(s(x0), cons(x1, sel(x2, x3))) -> c3(MARK(x0))
   A__SEL(s(cons(z0, z1)), cons(x1, sel(x2, x3))) -> c3(MARK(cons(z0, z1)))
   A__SEL(s(0), cons(x1, sel(x2, x3))) -> c3(A__SEL(0, a__sel(mark(x2), mark(x3))))
   A__SEL(s(x0), cons(x1, cons(from(z0), x3))) -> c3(A__SEL(mark(x0), cons(a__from(mark(z0)), x3)), MARK(x0))
   A__SEL(s(x0), cons(x1, cons(sel(z0, z1), x3))) -> c3(A__SEL(mark(x0), cons(a__sel(mark(z0), mark(z1)), x3)), MARK(x0))
   A__SEL(s(x0), cons(x1, cons(cons(z0, z1), x3))) -> c3(A__SEL(mark(x0), cons(cons(mark(z0), z1), x3)), MARK(x0))
   A__SEL(s(x0), cons(x1, cons(s(z0), x3))) -> c3(A__SEL(mark(x0), cons(s(mark(z0)), x3)), MARK(x0))
   A__SEL(s(x0), cons(x1, cons(0, x3))) -> c3(A__SEL(mark(x0), cons(0, x3)), MARK(x0))
   A__SEL(s(from(z0)), cons(x1, cons(x2, x3))) -> c3(A__SEL(a__from(mark(z0)), cons(mark(x2), x3)), MARK(from(z0)))
   A__SEL(s(sel(z0, z1)), cons(x1, cons(x2, x3))) -> c3(A__SEL(a__sel(mark(z0), mark(z1)), cons(mark(x2), x3)), MARK(sel(z0, z1)))
   A__SEL(s(s(z0)), cons(x1, cons(x2, x3))) -> c3(A__SEL(s(mark(z0)), cons(mark(x2), x3)), MARK(s(z0)))
   A__SEL(s(cons(z0, z1)), cons(x1, cons(x2, x3))) -> c3(MARK(cons(z0, z1)))
   A__SEL(s(0), cons(x1, cons(x2, x3))) -> c3(A__SEL(0, cons(mark(x2), x3)))
   A__SEL(s(from(from(z0))), cons(x1, x2)) -> c3(A__SEL(a__from(a__from(mark(z0))), mark(x2)), MARK(from(from(z0))))
   A__SEL(s(from(sel(z0, z1))), cons(x1, x2)) -> c3(A__SEL(a__from(a__sel(mark(z0), mark(z1))), mark(x2)), MARK(from(sel(z0, z1))))
   A__SEL(s(from(cons(z0, z1))), cons(x1, x2)) -> c3(A__SEL(a__from(cons(mark(z0), z1)), mark(x2)), MARK(from(cons(z0, z1))))
   A__SEL(s(from(s(z0))), cons(x1, x2)) -> c3(A__SEL(a__from(s(mark(z0))), mark(x2)), MARK(from(s(z0))))
   A__SEL(s(from(0)), cons(x1, x2)) -> c3(A__SEL(a__from(0), mark(x2)), MARK(from(0)))
   A__SEL(s(from(x0)), cons(x1, x2)) -> c3(MARK(from(x0)))
   A__SEL(s(from(x0)), cons(x1, s(z0))) -> c3(MARK(from(x0)))
   A__SEL(s(from(x0)), cons(x1, 0)) -> c3(MARK(from(x0)))
   A__SEL(s(sel(x0, from(z0))), cons(x2, x3)) -> c3(A__SEL(a__sel(mark(x0), a__from(mark(z0))), mark(x3)), MARK(sel(x0, from(z0))))
   A__SEL(s(sel(x0, sel(z0, z1))), cons(x2, x3)) -> c3(A__SEL(a__sel(mark(x0), a__sel(mark(z0), mark(z1))), mark(x3)), MARK(sel(x0, sel(z0, z1))))
   A__SEL(s(sel(x0, cons(z0, z1))), cons(x2, x3)) -> c3(A__SEL(a__sel(mark(x0), cons(mark(z0), z1)), mark(x3)), MARK(sel(x0, cons(z0, z1))))
   A__SEL(s(sel(x0, s(z0))), cons(x2, x3)) -> c3(A__SEL(a__sel(mark(x0), s(mark(z0))), mark(x3)), MARK(sel(x0, s(z0))))
   A__SEL(s(sel(x0, 0)), cons(x2, x3)) -> c3(A__SEL(a__sel(mark(x0), 0), mark(x3)), MARK(sel(x0, 0)))
   A__SEL(s(sel(from(z0), x1)), cons(x2, x3)) -> c3(A__SEL(a__sel(a__from(mark(z0)), mark(x1)), mark(x3)), MARK(sel(from(z0), x1)))
   A__SEL(s(sel(sel(z0, z1), x1)), cons(x2, x3)) -> c3(A__SEL(a__sel(a__sel(mark(z0), mark(z1)), mark(x1)), mark(x3)), MARK(sel(sel(z0, z1), x1)))
   A__SEL(s(sel(cons(z0, z1), x1)), cons(x2, x3)) -> c3(A__SEL(a__sel(cons(mark(z0), z1), mark(x1)), mark(x3)), MARK(sel(cons(z0, z1), x1)))
   A__SEL(s(sel(s(z0), x1)), cons(x2, x3)) -> c3(A__SEL(a__sel(s(mark(z0)), mark(x1)), mark(x3)), MARK(sel(s(z0), x1)))
   A__SEL(s(sel(0, x1)), cons(x2, x3)) -> c3(A__SEL(a__sel(0, mark(x1)), mark(x3)), MARK(sel(0, x1)))
   A__SEL(s(sel(x0, x1)), cons(x2, s(z0))) -> c3(MARK(sel(x0, x1)))
   A__SEL(s(sel(x0, x1)), cons(x2, 0)) -> c3(MARK(sel(x0, x1)))
   A__SEL(s(sel(x0, x1)), cons(x2, x3)) -> c3(MARK(sel(x0, x1)))
   A__SEL(s(s(from(z0))), cons(x1, x2)) -> c3(A__SEL(s(a__from(mark(z0))), mark(x2)), MARK(s(from(z0))))
   A__SEL(s(s(sel(z0, z1))), cons(x1, x2)) -> c3(A__SEL(s(a__sel(mark(z0), mark(z1))), mark(x2)), MARK(s(sel(z0, z1))))
   A__SEL(s(s(cons(z0, z1))), cons(x1, x2)) -> c3(A__SEL(s(cons(mark(z0), z1)), mark(x2)), MARK(s(cons(z0, z1))))
   A__SEL(s(s(s(z0))), cons(x1, x2)) -> c3(A__SEL(s(s(mark(z0))), mark(x2)), MARK(s(s(z0))))
   A__SEL(s(s(0)), cons(x1, x2)) -> c3(A__SEL(s(0), mark(x2)), MARK(s(0)))
   A__SEL(s(s(x0)), cons(x1, x2)) -> c3(MARK(s(x0)))
   A__SEL(s(s(x0)), cons(x1, s(z0))) -> c3(MARK(s(x0)))
   A__SEL(s(s(x0)), cons(x1, 0)) -> c3(MARK(s(x0)))
   A__SEL(s(x0), cons(x1, from(x2))) -> c4(A__SEL(mark(x0), cons(mark(mark(x2)), from(s(mark(x2))))), MARK(from(x2)))
   A__SEL(s(x0), cons(x1, from(from(z0)))) -> c4(A__SEL(mark(x0), a__from(a__from(mark(z0)))), MARK(from(from(z0))))
   A__SEL(s(x0), cons(x1, from(sel(z0, z1)))) -> c4(A__SEL(mark(x0), a__from(a__sel(mark(z0), mark(z1)))), MARK(from(sel(z0, z1))))
   A__SEL(s(x0), cons(x1, from(cons(z0, z1)))) -> c4(A__SEL(mark(x0), a__from(cons(mark(z0), z1))), MARK(from(cons(z0, z1))))
   A__SEL(s(x0), cons(x1, from(s(z0)))) -> c4(A__SEL(mark(x0), a__from(s(mark(z0)))), MARK(from(s(z0))))
   A__SEL(s(x0), cons(x1, from(0))) -> c4(A__SEL(mark(x0), a__from(0)), MARK(from(0)))
   A__SEL(s(from(z0)), cons(x1, from(x2))) -> c4(A__SEL(a__from(mark(z0)), a__from(mark(x2))), MARK(from(x2)))
   A__SEL(s(sel(z0, z1)), cons(x1, from(x2))) -> c4(A__SEL(a__sel(mark(z0), mark(z1)), a__from(mark(x2))), MARK(from(x2)))
   A__SEL(s(s(z0)), cons(x1, from(x2))) -> c4(A__SEL(s(mark(z0)), a__from(mark(x2))), MARK(from(x2)))
   A__SEL(s(0), cons(x1, from(x2))) -> c4(A__SEL(0, a__from(mark(x2))), MARK(from(x2)))
   A__SEL(s(x0), cons(x1, from(x2))) -> c4(MARK(from(x2)))
   A__SEL(s(cons(z0, z1)), cons(x1, from(x2))) -> c4(MARK(from(x2)))
   A__SEL(s(x0), cons(x1, sel(x2, from(z0)))) -> c4(A__SEL(mark(x0), a__sel(mark(x2), a__from(mark(z0)))), MARK(sel(x2, from(z0))))
   A__SEL(s(x0), cons(x1, sel(x2, sel(z0, z1)))) -> c4(A__SEL(mark(x0), a__sel(mark(x2), a__sel(mark(z0), mark(z1)))), MARK(sel(x2, sel(z0, z1))))
   A__SEL(s(x0), cons(x1, sel(x2, cons(z0, z1)))) -> c4(A__SEL(mark(x0), a__sel(mark(x2), cons(mark(z0), z1))), MARK(sel(x2, cons(z0, z1))))
   A__SEL(s(x0), cons(x1, sel(x2, s(z0)))) -> c4(A__SEL(mark(x0), a__sel(mark(x2), s(mark(z0)))), MARK(sel(x2, s(z0))))
   A__SEL(s(x0), cons(x1, sel(x2, 0))) -> c4(A__SEL(mark(x0), a__sel(mark(x2), 0)), MARK(sel(x2, 0)))
   A__SEL(s(x0), cons(x1, sel(from(z0), x3))) -> c4(A__SEL(mark(x0), a__sel(a__from(mark(z0)), mark(x3))), MARK(sel(from(z0), x3)))
   A__SEL(s(x0), cons(x1, sel(sel(z0, z1), x3))) -> c4(A__SEL(mark(x0), a__sel(a__sel(mark(z0), mark(z1)), mark(x3))), MARK(sel(sel(z0, z1), x3)))
   A__SEL(s(x0), cons(x1, sel(cons(z0, z1), x3))) -> c4(A__SEL(mark(x0), a__sel(cons(mark(z0), z1), mark(x3))), MARK(sel(cons(z0, z1), x3)))
   A__SEL(s(x0), cons(x1, sel(s(z0), x3))) -> c4(A__SEL(mark(x0), a__sel(s(mark(z0)), mark(x3))), MARK(sel(s(z0), x3)))
   A__SEL(s(x0), cons(x1, sel(0, x3))) -> c4(A__SEL(mark(x0), a__sel(0, mark(x3))), MARK(sel(0, x3)))
   A__SEL(s(from(z0)), cons(x1, sel(x2, x3))) -> c4(A__SEL(a__from(mark(z0)), a__sel(mark(x2), mark(x3))), MARK(sel(x2, x3)))
   A__SEL(s(sel(z0, z1)), cons(x1, sel(x2, x3))) -> c4(A__SEL(a__sel(mark(z0), mark(z1)), a__sel(mark(x2), mark(x3))), MARK(sel(x2, x3)))
   A__SEL(s(s(z0)), cons(x1, sel(x2, x3))) -> c4(A__SEL(s(mark(z0)), a__sel(mark(x2), mark(x3))), MARK(sel(x2, x3)))
   A__SEL(s(0), cons(x1, sel(x2, x3))) -> c4(A__SEL(0, a__sel(mark(x2), mark(x3))), MARK(sel(x2, x3)))
   A__SEL(s(x0), cons(x1, sel(x2, x3))) -> c4(MARK(sel(x2, x3)))
   A__SEL(s(cons(z0, z1)), cons(x1, sel(x2, x3))) -> c4(MARK(sel(x2, x3)))
   A__SEL(s(x0), cons(x1, cons(from(z0), x3))) -> c4(A__SEL(mark(x0), cons(a__from(mark(z0)), x3)), MARK(cons(from(z0), x3)))
   A__SEL(s(x0), cons(x1, cons(sel(z0, z1), x3))) -> c4(A__SEL(mark(x0), cons(a__sel(mark(z0), mark(z1)), x3)), MARK(cons(sel(z0, z1), x3)))
   A__SEL(s(x0), cons(x1, cons(cons(z0, z1), x3))) -> c4(A__SEL(mark(x0), cons(cons(mark(z0), z1), x3)), MARK(cons(cons(z0, z1), x3)))
   A__SEL(s(x0), cons(x1, cons(s(z0), x3))) -> c4(A__SEL(mark(x0), cons(s(mark(z0)), x3)), MARK(cons(s(z0), x3)))
   A__SEL(s(x0), cons(x1, cons(0, x3))) -> c4(A__SEL(mark(x0), cons(0, x3)), MARK(cons(0, x3)))
   A__SEL(s(from(z0)), cons(x1, cons(x2, x3))) -> c4(A__SEL(a__from(mark(z0)), cons(mark(x2), x3)), MARK(cons(x2, x3)))
   A__SEL(s(sel(z0, z1)), cons(x1, cons(x2, x3))) -> c4(A__SEL(a__sel(mark(z0), mark(z1)), cons(mark(x2), x3)), MARK(cons(x2, x3)))
   A__SEL(s(s(z0)), cons(x1, cons(x2, x3))) -> c4(A__SEL(s(mark(z0)), cons(mark(x2), x3)), MARK(cons(x2, x3)))
   A__SEL(s(0), cons(x1, cons(x2, x3))) -> c4(A__SEL(0, cons(mark(x2), x3)), MARK(cons(x2, x3)))
   A__SEL(s(x0), cons(x1, cons(x2, x3))) -> c4(MARK(cons(x2, x3)))
   A__SEL(s(cons(z0, z1)), cons(x1, cons(x2, x3))) -> c4(MARK(cons(x2, x3)))
   A__SEL(s(from(from(z0))), cons(x1, x2)) -> c4(A__SEL(a__from(a__from(mark(z0))), mark(x2)), MARK(x2))
   A__SEL(s(from(sel(z0, z1))), cons(x1, x2)) -> c4(A__SEL(a__from(a__sel(mark(z0), mark(z1))), mark(x2)), MARK(x2))
   A__SEL(s(from(cons(z0, z1))), cons(x1, x2)) -> c4(A__SEL(a__from(cons(mark(z0), z1)), mark(x2)), MARK(x2))
   A__SEL(s(from(s(z0))), cons(x1, x2)) -> c4(A__SEL(a__from(s(mark(z0))), mark(x2)), MARK(x2))
   A__SEL(s(from(0)), cons(x1, x2)) -> c4(A__SEL(a__from(0), mark(x2)), MARK(x2))
   A__SEL(s(from(x0)), cons(x1, s(z0))) -> c4(MARK(s(z0)))
   A__SEL(s(from(x0)), cons(x1, x2)) -> c4(MARK(x2))
   A__SEL(s(sel(x0, from(z0))), cons(x2, x3)) -> c4(A__SEL(a__sel(mark(x0), a__from(mark(z0))), mark(x3)), MARK(x3))
   A__SEL(s(sel(x0, sel(z0, z1))), cons(x2, x3)) -> c4(A__SEL(a__sel(mark(x0), a__sel(mark(z0), mark(z1))), mark(x3)), MARK(x3))
   A__SEL(s(sel(x0, cons(z0, z1))), cons(x2, x3)) -> c4(A__SEL(a__sel(mark(x0), cons(mark(z0), z1)), mark(x3)), MARK(x3))
   A__SEL(s(sel(x0, s(z0))), cons(x2, x3)) -> c4(A__SEL(a__sel(mark(x0), s(mark(z0))), mark(x3)), MARK(x3))
   A__SEL(s(sel(x0, 0)), cons(x2, x3)) -> c4(A__SEL(a__sel(mark(x0), 0), mark(x3)), MARK(x3))
   A__SEL(s(sel(from(z0), x1)), cons(x2, x3)) -> c4(A__SEL(a__sel(a__from(mark(z0)), mark(x1)), mark(x3)), MARK(x3))
   A__SEL(s(sel(sel(z0, z1), x1)), cons(x2, x3)) -> c4(A__SEL(a__sel(a__sel(mark(z0), mark(z1)), mark(x1)), mark(x3)), MARK(x3))
   A__SEL(s(sel(cons(z0, z1), x1)), cons(x2, x3)) -> c4(A__SEL(a__sel(cons(mark(z0), z1), mark(x1)), mark(x3)), MARK(x3))
   A__SEL(s(sel(s(z0), x1)), cons(x2, x3)) -> c4(A__SEL(a__sel(s(mark(z0)), mark(x1)), mark(x3)), MARK(x3))
   A__SEL(s(sel(0, x1)), cons(x2, x3)) -> c4(A__SEL(a__sel(0, mark(x1)), mark(x3)), MARK(x3))
   A__SEL(s(sel(x0, x1)), cons(x2, s(z0))) -> c4(MARK(s(z0)))
   A__SEL(s(sel(x0, x1)), cons(x2, x3)) -> c4(MARK(x3))
   A__SEL(s(s(from(z0))), cons(x1, x2)) -> c4(A__SEL(s(a__from(mark(z0))), mark(x2)), MARK(x2))
   A__SEL(s(s(sel(z0, z1))), cons(x1, x2)) -> c4(A__SEL(s(a__sel(mark(z0), mark(z1))), mark(x2)), MARK(x2))
   A__SEL(s(s(cons(z0, z1))), cons(x1, x2)) -> c4(A__SEL(s(cons(mark(z0), z1)), mark(x2)), MARK(x2))
   A__SEL(s(s(s(z0))), cons(x1, x2)) -> c4(A__SEL(s(s(mark(z0))), mark(x2)), MARK(x2))
   A__SEL(s(s(0)), cons(x1, x2)) -> c4(A__SEL(s(0), mark(x2)), MARK(x2))
   A__SEL(s(s(x0)), cons(x1, s(z0))) -> c4(MARK(s(z0)))
   A__SEL(s(0), cons(x0, s(z0))) -> c4(MARK(s(z0)))
   MARK(sel(x0, from(x1))) -> c7(A__SEL(mark(x0), cons(mark(mark(x1)), from(s(mark(x1))))), MARK(x0))
   MARK(sel(x0, from(from(z0)))) -> c7(A__SEL(mark(x0), a__from(a__from(mark(z0)))), MARK(x0))
   MARK(sel(x0, from(sel(z0, z1)))) -> c7(A__SEL(mark(x0), a__from(a__sel(mark(z0), mark(z1)))), MARK(x0))
   MARK(sel(x0, from(cons(z0, z1)))) -> c7(A__SEL(mark(x0), a__from(cons(mark(z0), z1))), MARK(x0))
   MARK(sel(x0, from(s(z0)))) -> c7(A__SEL(mark(x0), a__from(s(mark(z0)))), MARK(x0))
   MARK(sel(x0, from(0))) -> c7(A__SEL(mark(x0), a__from(0)), MARK(x0))
   MARK(sel(from(z0), from(x1))) -> c7(A__SEL(a__from(mark(z0)), a__from(mark(x1))), MARK(from(z0)))
   MARK(sel(sel(z0, z1), from(x1))) -> c7(A__SEL(a__sel(mark(z0), mark(z1)), a__from(mark(x1))), MARK(sel(z0, z1)))
   MARK(sel(s(z0), from(x1))) -> c7(A__SEL(s(mark(z0)), a__from(mark(x1))), MARK(s(z0)))
   MARK(sel(x0, from(x1))) -> c7(MARK(x0))
   MARK(sel(cons(z0, z1), from(x1))) -> c7(MARK(cons(z0, z1)))
   MARK(sel(0, from(x1))) -> c7(A__SEL(0, a__from(mark(x1))))
   MARK(sel(x0, sel(x1, from(z0)))) -> c7(A__SEL(mark(x0), a__sel(mark(x1), a__from(mark(z0)))), MARK(x0))
   MARK(sel(x0, sel(x1, sel(z0, z1)))) -> c7(A__SEL(mark(x0), a__sel(mark(x1), a__sel(mark(z0), mark(z1)))), MARK(x0))
   MARK(sel(x0, sel(x1, cons(z0, z1)))) -> c7(A__SEL(mark(x0), a__sel(mark(x1), cons(mark(z0), z1))), MARK(x0))
   MARK(sel(x0, sel(x1, s(z0)))) -> c7(A__SEL(mark(x0), a__sel(mark(x1), s(mark(z0)))), MARK(x0))
   MARK(sel(x0, sel(x1, 0))) -> c7(A__SEL(mark(x0), a__sel(mark(x1), 0)), MARK(x0))
   MARK(sel(x0, sel(from(z0), x2))) -> c7(A__SEL(mark(x0), a__sel(a__from(mark(z0)), mark(x2))), MARK(x0))
   MARK(sel(x0, sel(sel(z0, z1), x2))) -> c7(A__SEL(mark(x0), a__sel(a__sel(mark(z0), mark(z1)), mark(x2))), MARK(x0))
   MARK(sel(x0, sel(cons(z0, z1), x2))) -> c7(A__SEL(mark(x0), a__sel(cons(mark(z0), z1), mark(x2))), MARK(x0))
   MARK(sel(x0, sel(s(z0), x2))) -> c7(A__SEL(mark(x0), a__sel(s(mark(z0)), mark(x2))), MARK(x0))
   MARK(sel(x0, sel(0, x2))) -> c7(A__SEL(mark(x0), a__sel(0, mark(x2))), MARK(x0))
   MARK(sel(from(z0), sel(x1, x2))) -> c7(A__SEL(a__from(mark(z0)), a__sel(mark(x1), mark(x2))), MARK(from(z0)))
   MARK(sel(sel(z0, z1), sel(x1, x2))) -> c7(A__SEL(a__sel(mark(z0), mark(z1)), a__sel(mark(x1), mark(x2))), MARK(sel(z0, z1)))
   MARK(sel(s(z0), sel(x1, x2))) -> c7(A__SEL(s(mark(z0)), a__sel(mark(x1), mark(x2))), MARK(s(z0)))
   MARK(sel(x0, sel(x1, x2))) -> c7(MARK(x0))
   MARK(sel(cons(z0, z1), sel(x1, x2))) -> c7(MARK(cons(z0, z1)))
   MARK(sel(0, sel(x1, x2))) -> c7(A__SEL(0, a__sel(mark(x1), mark(x2))))
   MARK(sel(x0, cons(from(z0), x2))) -> c7(A__SEL(mark(x0), cons(a__from(mark(z0)), x2)), MARK(x0))
   MARK(sel(x0, cons(sel(z0, z1), x2))) -> c7(A__SEL(mark(x0), cons(a__sel(mark(z0), mark(z1)), x2)), MARK(x0))
   MARK(sel(x0, cons(cons(z0, z1), x2))) -> c7(A__SEL(mark(x0), cons(cons(mark(z0), z1), x2)), MARK(x0))
   MARK(sel(x0, cons(s(z0), x2))) -> c7(A__SEL(mark(x0), cons(s(mark(z0)), x2)), MARK(x0))
   MARK(sel(x0, cons(0, x2))) -> c7(A__SEL(mark(x0), cons(0, x2)), MARK(x0))
   MARK(sel(from(z0), cons(x1, x2))) -> c7(A__SEL(a__from(mark(z0)), cons(mark(x1), x2)), MARK(from(z0)))
   MARK(sel(sel(z0, z1), cons(x1, x2))) -> c7(A__SEL(a__sel(mark(z0), mark(z1)), cons(mark(x1), x2)), MARK(sel(z0, z1)))
   MARK(sel(s(z0), cons(x1, x2))) -> c7(A__SEL(s(mark(z0)), cons(mark(x1), x2)), MARK(s(z0)))
   MARK(sel(cons(z0, z1), cons(x1, x2))) -> c7(MARK(cons(z0, z1)))
   MARK(sel(0, cons(x1, x2))) -> c7(A__SEL(0, cons(mark(x1), x2)))
   MARK(sel(from(from(z0)), x1)) -> c7(A__SEL(a__from(a__from(mark(z0))), mark(x1)), MARK(from(from(z0))))
   MARK(sel(from(sel(z0, z1)), x1)) -> c7(A__SEL(a__from(a__sel(mark(z0), mark(z1))), mark(x1)), MARK(from(sel(z0, z1))))
   MARK(sel(from(cons(z0, z1)), x1)) -> c7(A__SEL(a__from(cons(mark(z0), z1)), mark(x1)), MARK(from(cons(z0, z1))))
   MARK(sel(from(s(z0)), x1)) -> c7(A__SEL(a__from(s(mark(z0))), mark(x1)), MARK(from(s(z0))))
   MARK(sel(from(0), x1)) -> c7(A__SEL(a__from(0), mark(x1)), MARK(from(0)))
   MARK(sel(from(x0), x1)) -> c7(MARK(from(x0)))
   MARK(sel(from(x0), s(z0))) -> c7(MARK(from(x0)))
   MARK(sel(from(x0), 0)) -> c7(MARK(from(x0)))
   MARK(sel(sel(x0, from(z0)), x2)) -> c7(A__SEL(a__sel(mark(x0), a__from(mark(z0))), mark(x2)), MARK(sel(x0, from(z0))))
   MARK(sel(sel(x0, sel(z0, z1)), x2)) -> c7(A__SEL(a__sel(mark(x0), a__sel(mark(z0), mark(z1))), mark(x2)), MARK(sel(x0, sel(z0, z1))))
   MARK(sel(sel(x0, cons(z0, z1)), x2)) -> c7(A__SEL(a__sel(mark(x0), cons(mark(z0), z1)), mark(x2)), MARK(sel(x0, cons(z0, z1))))
   MARK(sel(sel(x0, s(z0)), x2)) -> c7(A__SEL(a__sel(mark(x0), s(mark(z0))), mark(x2)), MARK(sel(x0, s(z0))))
   MARK(sel(sel(x0, 0), x2)) -> c7(A__SEL(a__sel(mark(x0), 0), mark(x2)), MARK(sel(x0, 0)))
   MARK(sel(sel(from(z0), x1), x2)) -> c7(A__SEL(a__sel(a__from(mark(z0)), mark(x1)), mark(x2)), MARK(sel(from(z0), x1)))
   MARK(sel(sel(sel(z0, z1), x1), x2)) -> c7(A__SEL(a__sel(a__sel(mark(z0), mark(z1)), mark(x1)), mark(x2)), MARK(sel(sel(z0, z1), x1)))
   MARK(sel(sel(cons(z0, z1), x1), x2)) -> c7(A__SEL(a__sel(cons(mark(z0), z1), mark(x1)), mark(x2)), MARK(sel(cons(z0, z1), x1)))
   MARK(sel(sel(s(z0), x1), x2)) -> c7(A__SEL(a__sel(s(mark(z0)), mark(x1)), mark(x2)), MARK(sel(s(z0), x1)))
   MARK(sel(sel(0, x1), x2)) -> c7(A__SEL(a__sel(0, mark(x1)), mark(x2)), MARK(sel(0, x1)))
   MARK(sel(sel(x0, x1), s(z0))) -> c7(MARK(sel(x0, x1)))
   MARK(sel(sel(x0, x1), 0)) -> c7(MARK(sel(x0, x1)))
   MARK(sel(sel(x0, x1), x2)) -> c7(MARK(sel(x0, x1)))
   MARK(sel(s(from(z0)), x1)) -> c7(A__SEL(s(a__from(mark(z0))), mark(x1)), MARK(s(from(z0))))
   MARK(sel(s(sel(z0, z1)), x1)) -> c7(A__SEL(s(a__sel(mark(z0), mark(z1))), mark(x1)), MARK(s(sel(z0, z1))))
   MARK(sel(s(cons(z0, z1)), x1)) -> c7(A__SEL(s(cons(mark(z0), z1)), mark(x1)), MARK(s(cons(z0, z1))))
   MARK(sel(s(s(z0)), x1)) -> c7(A__SEL(s(s(mark(z0))), mark(x1)), MARK(s(s(z0))))
   MARK(sel(s(0), x1)) -> c7(A__SEL(s(0), mark(x1)), MARK(s(0)))
   MARK(sel(s(x0), x1)) -> c7(MARK(s(x0)))
   MARK(sel(s(x0), s(z0))) -> c7(MARK(s(x0)))
   MARK(sel(s(x0), 0)) -> c7(MARK(s(x0)))
   MARK(sel(x0, from(x1))) -> c8(A__SEL(mark(x0), cons(mark(mark(x1)), from(s(mark(x1))))), MARK(from(x1)))
   MARK(sel(x0, from(x1))) -> c8(A__SEL(mark(x0), from(mark(x1))), MARK(from(x1)))
   MARK(sel(x0, from(from(z0)))) -> c8(A__SEL(mark(x0), a__from(a__from(mark(z0)))), MARK(from(from(z0))))
   MARK(sel(x0, from(sel(z0, z1)))) -> c8(A__SEL(mark(x0), a__from(a__sel(mark(z0), mark(z1)))), MARK(from(sel(z0, z1))))
   MARK(sel(x0, from(cons(z0, z1)))) -> c8(A__SEL(mark(x0), a__from(cons(mark(z0), z1))), MARK(from(cons(z0, z1))))
   MARK(sel(x0, from(s(z0)))) -> c8(A__SEL(mark(x0), a__from(s(mark(z0)))), MARK(from(s(z0))))
   MARK(sel(x0, from(0))) -> c8(A__SEL(mark(x0), a__from(0)), MARK(from(0)))
   MARK(sel(from(z0), from(x1))) -> c8(A__SEL(a__from(mark(z0)), a__from(mark(x1))), MARK(from(x1)))
   MARK(sel(sel(z0, z1), from(x1))) -> c8(A__SEL(a__sel(mark(z0), mark(z1)), a__from(mark(x1))), MARK(from(x1)))
   MARK(sel(cons(z0, z1), from(x1))) -> c8(A__SEL(cons(mark(z0), z1), a__from(mark(x1))), MARK(from(x1)))
   MARK(sel(s(z0), from(x1))) -> c8(A__SEL(s(mark(z0)), a__from(mark(x1))), MARK(from(x1)))
   MARK(sel(0, from(x1))) -> c8(A__SEL(0, a__from(mark(x1))), MARK(from(x1)))
   MARK(sel(x0, from(x1))) -> c8(MARK(from(x1)))
K tuples:none
Defined Rule Symbols:   a__from_1, a__sel_2, mark_1

Defined Pair Symbols:   A__FROM_1, A__SEL_2, MARK_1

Compound Symbols:   c_1, c2_1, c6_2, c9_1, c10_1, c3_1, c4_1, c7_1, c8_2, c8_1, c3_2, c4_2, c7_2


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

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

(172)
Obligation:
Complexity Dependency Tuples Problem

Rules:
   a__from(z0) -> cons(mark(z0), from(s(z0)))
   a__from(z0) -> from(z0)
   a__sel(0, cons(z0, z1)) -> mark(z0)
   a__sel(s(z0), cons(z1, z2)) -> a__sel(mark(z0), mark(z2))
   a__sel(z0, z1) -> sel(z0, z1)
   mark(from(z0)) -> a__from(mark(z0))
   mark(sel(z0, z1)) -> a__sel(mark(z0), mark(z1))
   mark(cons(z0, z1)) -> cons(mark(z0), z1)
   mark(s(z0)) -> s(mark(z0))
   mark(0) -> 0
Tuples:
   A__FROM(z0) -> c(MARK(z0))
   A__SEL(0, cons(z0, z1)) -> c2(MARK(z0))
   MARK(from(z0)) -> c6(A__FROM(mark(z0)), MARK(z0))
   MARK(cons(z0, z1)) -> c9(MARK(z0))
   MARK(s(z0)) -> c10(MARK(z0))
   A__SEL(s(x0), cons(x1, s(z0))) -> c3(MARK(x0))
   A__SEL(s(x0), cons(x1, 0)) -> c3(MARK(x0))
   A__SEL(s(cons(z0, z1)), cons(x1, x2)) -> c3(MARK(cons(z0, z1)))
   A__SEL(s(x0), cons(x1, s(z0))) -> c4(MARK(s(z0)))
   A__SEL(s(cons(z0, z1)), cons(x1, x2)) -> c4(MARK(x2))
   MARK(sel(x0, s(z0))) -> c7(MARK(x0))
   MARK(sel(x0, 0)) -> c7(MARK(x0))
   MARK(sel(cons(z0, z1), x1)) -> c7(MARK(cons(z0, z1)))
   MARK(sel(x0, sel(z0, z1))) -> c8(A__SEL(mark(x0), a__sel(mark(z0), mark(z1))), MARK(sel(z0, z1)))
   MARK(sel(x0, cons(z0, z1))) -> c8(A__SEL(mark(x0), cons(mark(z0), z1)), MARK(cons(z0, z1)))
   MARK(sel(from(z0), x1)) -> c8(A__SEL(a__from(mark(z0)), mark(x1)), MARK(x1))
   MARK(sel(sel(z0, z1), x1)) -> c8(A__SEL(a__sel(mark(z0), mark(z1)), mark(x1)), MARK(x1))
   MARK(sel(s(z0), x1)) -> c8(A__SEL(s(mark(z0)), mark(x1)), MARK(x1))
   MARK(sel(0, x1)) -> c8(A__SEL(0, mark(x1)), MARK(x1))
   MARK(sel(x0, s(z0))) -> c8(MARK(s(z0)))
   MARK(sel(cons(z0, z1), x1)) -> c8(MARK(x1))
   A__SEL(s(x0), cons(x1, from(x2))) -> c3(A__SEL(mark(x0), cons(mark(mark(x2)), from(s(mark(x2))))), MARK(x0))
   A__SEL(s(x0), cons(x1, from(from(z0)))) -> c3(A__SEL(mark(x0), a__from(a__from(mark(z0)))), MARK(x0))
   A__SEL(s(x0), cons(x1, from(sel(z0, z1)))) -> c3(A__SEL(mark(x0), a__from(a__sel(mark(z0), mark(z1)))), MARK(x0))
   A__SEL(s(x0), cons(x1, from(cons(z0, z1)))) -> c3(A__SEL(mark(x0), a__from(cons(mark(z0), z1))), MARK(x0))
   A__SEL(s(x0), cons(x1, from(s(z0)))) -> c3(A__SEL(mark(x0), a__from(s(mark(z0)))), MARK(x0))
   A__SEL(s(x0), cons(x1, from(0))) -> c3(A__SEL(mark(x0), a__from(0)), MARK(x0))
   A__SEL(s(from(z0)), cons(x1, from(x2))) -> c3(A__SEL(a__from(mark(z0)), a__from(mark(x2))), MARK(from(z0)))
   A__SEL(s(sel(z0, z1)), cons(x1, from(x2))) -> c3(A__SEL(a__sel(mark(z0), mark(z1)), a__from(mark(x2))), MARK(sel(z0, z1)))
   A__SEL(s(s(z0)), cons(x1, from(x2))) -> c3(A__SEL(s(mark(z0)), a__from(mark(x2))), MARK(s(z0)))
   A__SEL(s(x0), cons(x1, from(x2))) -> c3(MARK(x0))
   A__SEL(s(cons(z0, z1)), cons(x1, from(x2))) -> c3(MARK(cons(z0, z1)))
   A__SEL(s(0), cons(x1, from(x2))) -> c3(A__SEL(0, a__from(mark(x2))))
   A__SEL(s(x0), cons(x1, sel(x2, from(z0)))) -> c3(A__SEL(mark(x0), a__sel(mark(x2), a__from(mark(z0)))), MARK(x0))
   A__SEL(s(x0), cons(x1, sel(x2, sel(z0, z1)))) -> c3(A__SEL(mark(x0), a__sel(mark(x2), a__sel(mark(z0), mark(z1)))), MARK(x0))
   A__SEL(s(x0), cons(x1, sel(x2, cons(z0, z1)))) -> c3(A__SEL(mark(x0), a__sel(mark(x2), cons(mark(z0), z1))), MARK(x0))
   A__SEL(s(x0), cons(x1, sel(x2, s(z0)))) -> c3(A__SEL(mark(x0), a__sel(mark(x2), s(mark(z0)))), MARK(x0))
   A__SEL(s(x0), cons(x1, sel(x2, 0))) -> c3(A__SEL(mark(x0), a__sel(mark(x2), 0)), MARK(x0))
   A__SEL(s(x0), cons(x1, sel(from(z0), x3))) -> c3(A__SEL(mark(x0), a__sel(a__from(mark(z0)), mark(x3))), MARK(x0))
   A__SEL(s(x0), cons(x1, sel(sel(z0, z1), x3))) -> c3(A__SEL(mark(x0), a__sel(a__sel(mark(z0), mark(z1)), mark(x3))), MARK(x0))
   A__SEL(s(x0), cons(x1, sel(cons(z0, z1), x3))) -> c3(A__SEL(mark(x0), a__sel(cons(mark(z0), z1), mark(x3))), MARK(x0))
   A__SEL(s(x0), cons(x1, sel(s(z0), x3))) -> c3(A__SEL(mark(x0), a__sel(s(mark(z0)), mark(x3))), MARK(x0))
   A__SEL(s(x0), cons(x1, sel(0, x3))) -> c3(A__SEL(mark(x0), a__sel(0, mark(x3))), MARK(x0))
   A__SEL(s(from(z0)), cons(x1, sel(x2, x3))) -> c3(A__SEL(a__from(mark(z0)), a__sel(mark(x2), mark(x3))), MARK(from(z0)))
   A__SEL(s(sel(z0, z1)), cons(x1, sel(x2, x3))) -> c3(A__SEL(a__sel(mark(z0), mark(z1)), a__sel(mark(x2), mark(x3))), MARK(sel(z0, z1)))
   A__SEL(s(s(z0)), cons(x1, sel(x2, x3))) -> c3(A__SEL(s(mark(z0)), a__sel(mark(x2), mark(x3))), MARK(s(z0)))
   A__SEL(s(x0), cons(x1, sel(x2, x3))) -> c3(MARK(x0))
   A__SEL(s(cons(z0, z1)), cons(x1, sel(x2, x3))) -> c3(MARK(cons(z0, z1)))
   A__SEL(s(0), cons(x1, sel(x2, x3))) -> c3(A__SEL(0, a__sel(mark(x2), mark(x3))))
   A__SEL(s(x0), cons(x1, cons(from(z0), x3))) -> c3(A__SEL(mark(x0), cons(a__from(mark(z0)), x3)), MARK(x0))
   A__SEL(s(x0), cons(x1, cons(sel(z0, z1), x3))) -> c3(A__SEL(mark(x0), cons(a__sel(mark(z0), mark(z1)), x3)), MARK(x0))
   A__SEL(s(x0), cons(x1, cons(cons(z0, z1), x3))) -> c3(A__SEL(mark(x0), cons(cons(mark(z0), z1), x3)), MARK(x0))
   A__SEL(s(x0), cons(x1, cons(s(z0), x3))) -> c3(A__SEL(mark(x0), cons(s(mark(z0)), x3)), MARK(x0))
   A__SEL(s(x0), cons(x1, cons(0, x3))) -> c3(A__SEL(mark(x0), cons(0, x3)), MARK(x0))
   A__SEL(s(from(z0)), cons(x1, cons(x2, x3))) -> c3(A__SEL(a__from(mark(z0)), cons(mark(x2), x3)), MARK(from(z0)))
   A__SEL(s(sel(z0, z1)), cons(x1, cons(x2, x3))) -> c3(A__SEL(a__sel(mark(z0), mark(z1)), cons(mark(x2), x3)), MARK(sel(z0, z1)))
   A__SEL(s(s(z0)), cons(x1, cons(x2, x3))) -> c3(A__SEL(s(mark(z0)), cons(mark(x2), x3)), MARK(s(z0)))
   A__SEL(s(cons(z0, z1)), cons(x1, cons(x2, x3))) -> c3(MARK(cons(z0, z1)))
   A__SEL(s(0), cons(x1, cons(x2, x3))) -> c3(A__SEL(0, cons(mark(x2), x3)))
   A__SEL(s(from(from(z0))), cons(x1, x2)) -> c3(A__SEL(a__from(a__from(mark(z0))), mark(x2)), MARK(from(from(z0))))
   A__SEL(s(from(sel(z0, z1))), cons(x1, x2)) -> c3(A__SEL(a__from(a__sel(mark(z0), mark(z1))), mark(x2)), MARK(from(sel(z0, z1))))
   A__SEL(s(from(cons(z0, z1))), cons(x1, x2)) -> c3(A__SEL(a__from(cons(mark(z0), z1)), mark(x2)), MARK(from(cons(z0, z1))))
   A__SEL(s(from(s(z0))), cons(x1, x2)) -> c3(A__SEL(a__from(s(mark(z0))), mark(x2)), MARK(from(s(z0))))
   A__SEL(s(from(0)), cons(x1, x2)) -> c3(A__SEL(a__from(0), mark(x2)), MARK(from(0)))
   A__SEL(s(from(x0)), cons(x1, x2)) -> c3(MARK(from(x0)))
   A__SEL(s(from(x0)), cons(x1, s(z0))) -> c3(MARK(from(x0)))
   A__SEL(s(from(x0)), cons(x1, 0)) -> c3(MARK(from(x0)))
   A__SEL(s(sel(x0, from(z0))), cons(x2, x3)) -> c3(A__SEL(a__sel(mark(x0), a__from(mark(z0))), mark(x3)), MARK(sel(x0, from(z0))))
   A__SEL(s(sel(x0, sel(z0, z1))), cons(x2, x3)) -> c3(A__SEL(a__sel(mark(x0), a__sel(mark(z0), mark(z1))), mark(x3)), MARK(sel(x0, sel(z0, z1))))
   A__SEL(s(sel(x0, cons(z0, z1))), cons(x2, x3)) -> c3(A__SEL(a__sel(mark(x0), cons(mark(z0), z1)), mark(x3)), MARK(sel(x0, cons(z0, z1))))
   A__SEL(s(sel(x0, s(z0))), cons(x2, x3)) -> c3(A__SEL(a__sel(mark(x0), s(mark(z0))), mark(x3)), MARK(sel(x0, s(z0))))
   A__SEL(s(sel(x0, 0)), cons(x2, x3)) -> c3(A__SEL(a__sel(mark(x0), 0), mark(x3)), MARK(sel(x0, 0)))
   A__SEL(s(sel(from(z0), x1)), cons(x2, x3)) -> c3(A__SEL(a__sel(a__from(mark(z0)), mark(x1)), mark(x3)), MARK(sel(from(z0), x1)))
   A__SEL(s(sel(sel(z0, z1), x1)), cons(x2, x3)) -> c3(A__SEL(a__sel(a__sel(mark(z0), mark(z1)), mark(x1)), mark(x3)), MARK(sel(sel(z0, z1), x1)))
   A__SEL(s(sel(cons(z0, z1), x1)), cons(x2, x3)) -> c3(A__SEL(a__sel(cons(mark(z0), z1), mark(x1)), mark(x3)), MARK(sel(cons(z0, z1), x1)))
   A__SEL(s(sel(s(z0), x1)), cons(x2, x3)) -> c3(A__SEL(a__sel(s(mark(z0)), mark(x1)), mark(x3)), MARK(sel(s(z0), x1)))
   A__SEL(s(sel(0, x1)), cons(x2, x3)) -> c3(A__SEL(a__sel(0, mark(x1)), mark(x3)), MARK(sel(0, x1)))
   A__SEL(s(sel(x0, x1)), cons(x2, s(z0))) -> c3(MARK(sel(x0, x1)))
   A__SEL(s(sel(x0, x1)), cons(x2, 0)) -> c3(MARK(sel(x0, x1)))
   A__SEL(s(sel(x0, x1)), cons(x2, x3)) -> c3(MARK(sel(x0, x1)))
   A__SEL(s(s(from(z0))), cons(x1, x2)) -> c3(A__SEL(s(a__from(mark(z0))), mark(x2)), MARK(s(from(z0))))
   A__SEL(s(s(sel(z0, z1))), cons(x1, x2)) -> c3(A__SEL(s(a__sel(mark(z0), mark(z1))), mark(x2)), MARK(s(sel(z0, z1))))
   A__SEL(s(s(cons(z0, z1))), cons(x1, x2)) -> c3(A__SEL(s(cons(mark(z0), z1)), mark(x2)), MARK(s(cons(z0, z1))))
   A__SEL(s(s(s(z0))), cons(x1, x2)) -> c3(A__SEL(s(s(mark(z0))), mark(x2)), MARK(s(s(z0))))
   A__SEL(s(s(0)), cons(x1, x2)) -> c3(A__SEL(s(0), mark(x2)), MARK(s(0)))
   A__SEL(s(s(x0)), cons(x1, x2)) -> c3(MARK(s(x0)))
   A__SEL(s(s(x0)), cons(x1, s(z0))) -> c3(MARK(s(x0)))
   A__SEL(s(s(x0)), cons(x1, 0)) -> c3(MARK(s(x0)))
   A__SEL(s(x0), cons(x1, from(x2))) -> c4(A__SEL(mark(x0), cons(mark(mark(x2)), from(s(mark(x2))))), MARK(from(x2)))
   A__SEL(s(x0), cons(x1, from(from(z0)))) -> c4(A__SEL(mark(x0), a__from(a__from(mark(z0)))), MARK(from(from(z0))))
   A__SEL(s(x0), cons(x1, from(sel(z0, z1)))) -> c4(A__SEL(mark(x0), a__from(a__sel(mark(z0), mark(z1)))), MARK(from(sel(z0, z1))))
   A__SEL(s(x0), cons(x1, from(cons(z0, z1)))) -> c4(A__SEL(mark(x0), a__from(cons(mark(z0), z1))), MARK(from(cons(z0, z1))))
   A__SEL(s(x0), cons(x1, from(s(z0)))) -> c4(A__SEL(mark(x0), a__from(s(mark(z0)))), MARK(from(s(z0))))
   A__SEL(s(x0), cons(x1, from(0))) -> c4(A__SEL(mark(x0), a__from(0)), MARK(from(0)))
   A__SEL(s(from(z0)), cons(x1, from(x2))) -> c4(A__SEL(a__from(mark(z0)), a__from(mark(x2))), MARK(from(x2)))
   A__SEL(s(sel(z0, z1)), cons(x1, from(x2))) -> c4(A__SEL(a__sel(mark(z0), mark(z1)), a__from(mark(x2))), MARK(from(x2)))
   A__SEL(s(s(z0)), cons(x1, from(x2))) -> c4(A__SEL(s(mark(z0)), a__from(mark(x2))), MARK(from(x2)))
   A__SEL(s(0), cons(x1, from(x2))) -> c4(A__SEL(0, a__from(mark(x2))), MARK(from(x2)))
   A__SEL(s(x0), cons(x1, from(x2))) -> c4(MARK(from(x2)))
   A__SEL(s(cons(z0, z1)), cons(x1, from(x2))) -> c4(MARK(from(x2)))
   A__SEL(s(x0), cons(x1, sel(x2, from(z0)))) -> c4(A__SEL(mark(x0), a__sel(mark(x2), a__from(mark(z0)))), MARK(sel(x2, from(z0))))
   A__SEL(s(x0), cons(x1, sel(x2, sel(z0, z1)))) -> c4(A__SEL(mark(x0), a__sel(mark(x2), a__sel(mark(z0), mark(z1)))), MARK(sel(x2, sel(z0, z1))))
   A__SEL(s(x0), cons(x1, sel(x2, cons(z0, z1)))) -> c4(A__SEL(mark(x0), a__sel(mark(x2), cons(mark(z0), z1))), MARK(sel(x2, cons(z0, z1))))
   A__SEL(s(x0), cons(x1, sel(x2, s(z0)))) -> c4(A__SEL(mark(x0), a__sel(mark(x2), s(mark(z0)))), MARK(sel(x2, s(z0))))
   A__SEL(s(x0), cons(x1, sel(x2, 0))) -> c4(A__SEL(mark(x0), a__sel(mark(x2), 0)), MARK(sel(x2, 0)))
   A__SEL(s(x0), cons(x1, sel(from(z0), x3))) -> c4(A__SEL(mark(x0), a__sel(a__from(mark(z0)), mark(x3))), MARK(sel(from(z0), x3)))
   A__SEL(s(x0), cons(x1, sel(sel(z0, z1), x3))) -> c4(A__SEL(mark(x0), a__sel(a__sel(mark(z0), mark(z1)), mark(x3))), MARK(sel(sel(z0, z1), x3)))
   A__SEL(s(x0), cons(x1, sel(cons(z0, z1), x3))) -> c4(A__SEL(mark(x0), a__sel(cons(mark(z0), z1), mark(x3))), MARK(sel(cons(z0, z1), x3)))
   A__SEL(s(x0), cons(x1, sel(s(z0), x3))) -> c4(A__SEL(mark(x0), a__sel(s(mark(z0)), mark(x3))), MARK(sel(s(z0), x3)))
   A__SEL(s(x0), cons(x1, sel(0, x3))) -> c4(A__SEL(mark(x0), a__sel(0, mark(x3))), MARK(sel(0, x3)))
   A__SEL(s(from(z0)), cons(x1, sel(x2, x3))) -> c4(A__SEL(a__from(mark(z0)), a__sel(mark(x2), mark(x3))), MARK(sel(x2, x3)))
   A__SEL(s(sel(z0, z1)), cons(x1, sel(x2, x3))) -> c4(A__SEL(a__sel(mark(z0), mark(z1)), a__sel(mark(x2), mark(x3))), MARK(sel(x2, x3)))
   A__SEL(s(s(z0)), cons(x1, sel(x2, x3))) -> c4(A__SEL(s(mark(z0)), a__sel(mark(x2), mark(x3))), MARK(sel(x2, x3)))
   A__SEL(s(0), cons(x1, sel(x2, x3))) -> c4(A__SEL(0, a__sel(mark(x2), mark(x3))), MARK(sel(x2, x3)))
   A__SEL(s(x0), cons(x1, sel(x2, x3))) -> c4(MARK(sel(x2, x3)))
   A__SEL(s(cons(z0, z1)), cons(x1, sel(x2, x3))) -> c4(MARK(sel(x2, x3)))
   A__SEL(s(x0), cons(x1, cons(from(z0), x3))) -> c4(A__SEL(mark(x0), cons(a__from(mark(z0)), x3)), MARK(cons(from(z0), x3)))
   A__SEL(s(x0), cons(x1, cons(sel(z0, z1), x3))) -> c4(A__SEL(mark(x0), cons(a__sel(mark(z0), mark(z1)), x3)), MARK(cons(sel(z0, z1), x3)))
   A__SEL(s(x0), cons(x1, cons(cons(z0, z1), x3))) -> c4(A__SEL(mark(x0), cons(cons(mark(z0), z1), x3)), MARK(cons(cons(z0, z1), x3)))
   A__SEL(s(x0), cons(x1, cons(s(z0), x3))) -> c4(A__SEL(mark(x0), cons(s(mark(z0)), x3)), MARK(cons(s(z0), x3)))
   A__SEL(s(x0), cons(x1, cons(0, x3))) -> c4(A__SEL(mark(x0), cons(0, x3)), MARK(cons(0, x3)))
   A__SEL(s(from(z0)), cons(x1, cons(x2, x3))) -> c4(A__SEL(a__from(mark(z0)), cons(mark(x2), x3)), MARK(cons(x2, x3)))
   A__SEL(s(sel(z0, z1)), cons(x1, cons(x2, x3))) -> c4(A__SEL(a__sel(mark(z0), mark(z1)), cons(mark(x2), x3)), MARK(cons(x2, x3)))
   A__SEL(s(s(z0)), cons(x1, cons(x2, x3))) -> c4(A__SEL(s(mark(z0)), cons(mark(x2), x3)), MARK(cons(x2, x3)))
   A__SEL(s(0), cons(x1, cons(x2, x3))) -> c4(A__SEL(0, cons(mark(x2), x3)), MARK(cons(x2, x3)))
   A__SEL(s(x0), cons(x1, cons(x2, x3))) -> c4(MARK(cons(x2, x3)))
   A__SEL(s(cons(z0, z1)), cons(x1, cons(x2, x3))) -> c4(MARK(cons(x2, x3)))
   A__SEL(s(from(from(z0))), cons(x1, x2)) -> c4(A__SEL(a__from(a__from(mark(z0))), mark(x2)), MARK(x2))
   A__SEL(s(from(sel(z0, z1))), cons(x1, x2)) -> c4(A__SEL(a__from(a__sel(mark(z0), mark(z1))), mark(x2)), MARK(x2))
   A__SEL(s(from(cons(z0, z1))), cons(x1, x2)) -> c4(A__SEL(a__from(cons(mark(z0), z1)), mark(x2)), MARK(x2))
   A__SEL(s(from(s(z0))), cons(x1, x2)) -> c4(A__SEL(a__from(s(mark(z0))), mark(x2)), MARK(x2))
   A__SEL(s(from(0)), cons(x1, x2)) -> c4(A__SEL(a__from(0), mark(x2)), MARK(x2))
   A__SEL(s(from(x0)), cons(x1, s(z0))) -> c4(MARK(s(z0)))
   A__SEL(s(from(x0)), cons(x1, x2)) -> c4(MARK(x2))
   A__SEL(s(sel(x0, from(z0))), cons(x2, x3)) -> c4(A__SEL(a__sel(mark(x0), a__from(mark(z0))), mark(x3)), MARK(x3))
   A__SEL(s(sel(x0, sel(z0, z1))), cons(x2, x3)) -> c4(A__SEL(a__sel(mark(x0), a__sel(mark(z0), mark(z1))), mark(x3)), MARK(x3))
   A__SEL(s(sel(x0, cons(z0, z1))), cons(x2, x3)) -> c4(A__SEL(a__sel(mark(x0), cons(mark(z0), z1)), mark(x3)), MARK(x3))
   A__SEL(s(sel(x0, s(z0))), cons(x2, x3)) -> c4(A__SEL(a__sel(mark(x0), s(mark(z0))), mark(x3)), MARK(x3))
   A__SEL(s(sel(x0, 0)), cons(x2, x3)) -> c4(A__SEL(a__sel(mark(x0), 0), mark(x3)), MARK(x3))
   A__SEL(s(sel(from(z0), x1)), cons(x2, x3)) -> c4(A__SEL(a__sel(a__from(mark(z0)), mark(x1)), mark(x3)), MARK(x3))
   A__SEL(s(sel(sel(z0, z1), x1)), cons(x2, x3)) -> c4(A__SEL(a__sel(a__sel(mark(z0), mark(z1)), mark(x1)), mark(x3)), MARK(x3))
   A__SEL(s(sel(cons(z0, z1), x1)), cons(x2, x3)) -> c4(A__SEL(a__sel(cons(mark(z0), z1), mark(x1)), mark(x3)), MARK(x3))
   A__SEL(s(sel(s(z0), x1)), cons(x2, x3)) -> c4(A__SEL(a__sel(s(mark(z0)), mark(x1)), mark(x3)), MARK(x3))
   A__SEL(s(sel(0, x1)), cons(x2, x3)) -> c4(A__SEL(a__sel(0, mark(x1)), mark(x3)), MARK(x3))
   A__SEL(s(sel(x0, x1)), cons(x2, s(z0))) -> c4(MARK(s(z0)))
   A__SEL(s(sel(x0, x1)), cons(x2, x3)) -> c4(MARK(x3))
   A__SEL(s(s(from(z0))), cons(x1, x2)) -> c4(A__SEL(s(a__from(mark(z0))), mark(x2)), MARK(x2))
   A__SEL(s(s(sel(z0, z1))), cons(x1, x2)) -> c4(A__SEL(s(a__sel(mark(z0), mark(z1))), mark(x2)), MARK(x2))
   A__SEL(s(s(cons(z0, z1))), cons(x1, x2)) -> c4(A__SEL(s(cons(mark(z0), z1)), mark(x2)), MARK(x2))
   A__SEL(s(s(s(z0))), cons(x1, x2)) -> c4(A__SEL(s(s(mark(z0))), mark(x2)), MARK(x2))
   A__SEL(s(s(0)), cons(x1, x2)) -> c4(A__SEL(s(0), mark(x2)), MARK(x2))
   A__SEL(s(s(x0)), cons(x1, s(z0))) -> c4(MARK(s(z0)))
   A__SEL(s(0), cons(x0, s(z0))) -> c4(MARK(s(z0)))
   MARK(sel(x0, from(x1))) -> c7(A__SEL(mark(x0), cons(mark(mark(x1)), from(s(mark(x1))))), MARK(x0))
   MARK(sel(x0, from(from(z0)))) -> c7(A__SEL(mark(x0), a__from(a__from(mark(z0)))), MARK(x0))
   MARK(sel(x0, from(sel(z0, z1)))) -> c7(A__SEL(mark(x0), a__from(a__sel(mark(z0), mark(z1)))), MARK(x0))
   MARK(sel(x0, from(cons(z0, z1)))) -> c7(A__SEL(mark(x0), a__from(cons(mark(z0), z1))), MARK(x0))
   MARK(sel(x0, from(s(z0)))) -> c7(A__SEL(mark(x0), a__from(s(mark(z0)))), MARK(x0))
   MARK(sel(x0, from(0))) -> c7(A__SEL(mark(x0), a__from(0)), MARK(x0))
   MARK(sel(from(z0), from(x1))) -> c7(A__SEL(a__from(mark(z0)), a__from(mark(x1))), MARK(from(z0)))
   MARK(sel(sel(z0, z1), from(x1))) -> c7(A__SEL(a__sel(mark(z0), mark(z1)), a__from(mark(x1))), MARK(sel(z0, z1)))
   MARK(sel(s(z0), from(x1))) -> c7(A__SEL(s(mark(z0)), a__from(mark(x1))), MARK(s(z0)))
   MARK(sel(x0, from(x1))) -> c7(MARK(x0))
   MARK(sel(cons(z0, z1), from(x1))) -> c7(MARK(cons(z0, z1)))
   MARK(sel(0, from(x1))) -> c7(A__SEL(0, a__from(mark(x1))))
   MARK(sel(x0, sel(x1, from(z0)))) -> c7(A__SEL(mark(x0), a__sel(mark(x1), a__from(mark(z0)))), MARK(x0))
   MARK(sel(x0, sel(x1, sel(z0, z1)))) -> c7(A__SEL(mark(x0), a__sel(mark(x1), a__sel(mark(z0), mark(z1)))), MARK(x0))
   MARK(sel(x0, sel(x1, cons(z0, z1)))) -> c7(A__SEL(mark(x0), a__sel(mark(x1), cons(mark(z0), z1))), MARK(x0))
   MARK(sel(x0, sel(x1, s(z0)))) -> c7(A__SEL(mark(x0), a__sel(mark(x1), s(mark(z0)))), MARK(x0))
   MARK(sel(x0, sel(x1, 0))) -> c7(A__SEL(mark(x0), a__sel(mark(x1), 0)), MARK(x0))
   MARK(sel(x0, sel(from(z0), x2))) -> c7(A__SEL(mark(x0), a__sel(a__from(mark(z0)), mark(x2))), MARK(x0))
   MARK(sel(x0, sel(sel(z0, z1), x2))) -> c7(A__SEL(mark(x0), a__sel(a__sel(mark(z0), mark(z1)), mark(x2))), MARK(x0))
   MARK(sel(x0, sel(cons(z0, z1), x2))) -> c7(A__SEL(mark(x0), a__sel(cons(mark(z0), z1), mark(x2))), MARK(x0))
   MARK(sel(x0, sel(s(z0), x2))) -> c7(A__SEL(mark(x0), a__sel(s(mark(z0)), mark(x2))), MARK(x0))
   MARK(sel(x0, sel(0, x2))) -> c7(A__SEL(mark(x0), a__sel(0, mark(x2))), MARK(x0))
   MARK(sel(from(z0), sel(x1, x2))) -> c7(A__SEL(a__from(mark(z0)), a__sel(mark(x1), mark(x2))), MARK(from(z0)))
   MARK(sel(sel(z0, z1), sel(x1, x2))) -> c7(A__SEL(a__sel(mark(z0), mark(z1)), a__sel(mark(x1), mark(x2))), MARK(sel(z0, z1)))
   MARK(sel(s(z0), sel(x1, x2))) -> c7(A__SEL(s(mark(z0)), a__sel(mark(x1), mark(x2))), MARK(s(z0)))
   MARK(sel(x0, sel(x1, x2))) -> c7(MARK(x0))
   MARK(sel(cons(z0, z1), sel(x1, x2))) -> c7(MARK(cons(z0, z1)))
   MARK(sel(0, sel(x1, x2))) -> c7(A__SEL(0, a__sel(mark(x1), mark(x2))))
   MARK(sel(x0, cons(from(z0), x2))) -> c7(A__SEL(mark(x0), cons(a__from(mark(z0)), x2)), MARK(x0))
   MARK(sel(x0, cons(sel(z0, z1), x2))) -> c7(A__SEL(mark(x0), cons(a__sel(mark(z0), mark(z1)), x2)), MARK(x0))
   MARK(sel(x0, cons(cons(z0, z1), x2))) -> c7(A__SEL(mark(x0), cons(cons(mark(z0), z1), x2)), MARK(x0))
   MARK(sel(x0, cons(s(z0), x2))) -> c7(A__SEL(mark(x0), cons(s(mark(z0)), x2)), MARK(x0))
   MARK(sel(x0, cons(0, x2))) -> c7(A__SEL(mark(x0), cons(0, x2)), MARK(x0))
   MARK(sel(from(z0), cons(x1, x2))) -> c7(A__SEL(a__from(mark(z0)), cons(mark(x1), x2)), MARK(from(z0)))
   MARK(sel(sel(z0, z1), cons(x1, x2))) -> c7(A__SEL(a__sel(mark(z0), mark(z1)), cons(mark(x1), x2)), MARK(sel(z0, z1)))
   MARK(sel(s(z0), cons(x1, x2))) -> c7(A__SEL(s(mark(z0)), cons(mark(x1), x2)), MARK(s(z0)))
   MARK(sel(cons(z0, z1), cons(x1, x2))) -> c7(MARK(cons(z0, z1)))
   MARK(sel(0, cons(x1, x2))) -> c7(A__SEL(0, cons(mark(x1), x2)))
   MARK(sel(from(from(z0)), x1)) -> c7(A__SEL(a__from(a__from(mark(z0))), mark(x1)), MARK(from(from(z0))))
   MARK(sel(from(sel(z0, z1)), x1)) -> c7(A__SEL(a__from(a__sel(mark(z0), mark(z1))), mark(x1)), MARK(from(sel(z0, z1))))
   MARK(sel(from(cons(z0, z1)), x1)) -> c7(A__SEL(a__from(cons(mark(z0), z1)), mark(x1)), MARK(from(cons(z0, z1))))
   MARK(sel(from(s(z0)), x1)) -> c7(A__SEL(a__from(s(mark(z0))), mark(x1)), MARK(from(s(z0))))
   MARK(sel(from(0), x1)) -> c7(A__SEL(a__from(0), mark(x1)), MARK(from(0)))
   MARK(sel(from(x0), x1)) -> c7(MARK(from(x0)))
   MARK(sel(from(x0), s(z0))) -> c7(MARK(from(x0)))
   MARK(sel(from(x0), 0)) -> c7(MARK(from(x0)))
   MARK(sel(sel(x0, from(z0)), x2)) -> c7(A__SEL(a__sel(mark(x0), a__from(mark(z0))), mark(x2)), MARK(sel(x0, from(z0))))
   MARK(sel(sel(x0, sel(z0, z1)), x2)) -> c7(A__SEL(a__sel(mark(x0), a__sel(mark(z0), mark(z1))), mark(x2)), MARK(sel(x0, sel(z0, z1))))
   MARK(sel(sel(x0, cons(z0, z1)), x2)) -> c7(A__SEL(a__sel(mark(x0), cons(mark(z0), z1)), mark(x2)), MARK(sel(x0, cons(z0, z1))))
   MARK(sel(sel(x0, s(z0)), x2)) -> c7(A__SEL(a__sel(mark(x0), s(mark(z0))), mark(x2)), MARK(sel(x0, s(z0))))
   MARK(sel(sel(x0, 0), x2)) -> c7(A__SEL(a__sel(mark(x0), 0), mark(x2)), MARK(sel(x0, 0)))
   MARK(sel(sel(from(z0), x1), x2)) -> c7(A__SEL(a__sel(a__from(mark(z0)), mark(x1)), mark(x2)), MARK(sel(from(z0), x1)))
   MARK(sel(sel(sel(z0, z1), x1), x2)) -> c7(A__SEL(a__sel(a__sel(mark(z0), mark(z1)), mark(x1)), mark(x2)), MARK(sel(sel(z0, z1), x1)))
   MARK(sel(sel(cons(z0, z1), x1), x2)) -> c7(A__SEL(a__sel(cons(mark(z0), z1), mark(x1)), mark(x2)), MARK(sel(cons(z0, z1), x1)))
   MARK(sel(sel(s(z0), x1), x2)) -> c7(A__SEL(a__sel(s(mark(z0)), mark(x1)), mark(x2)), MARK(sel(s(z0), x1)))
   MARK(sel(sel(0, x1), x2)) -> c7(A__SEL(a__sel(0, mark(x1)), mark(x2)), MARK(sel(0, x1)))
   MARK(sel(sel(x0, x1), s(z0))) -> c7(MARK(sel(x0, x1)))
   MARK(sel(sel(x0, x1), 0)) -> c7(MARK(sel(x0, x1)))
   MARK(sel(sel(x0, x1), x2)) -> c7(MARK(sel(x0, x1)))
   MARK(sel(s(from(z0)), x1)) -> c7(A__SEL(s(a__from(mark(z0))), mark(x1)), MARK(s(from(z0))))
   MARK(sel(s(sel(z0, z1)), x1)) -> c7(A__SEL(s(a__sel(mark(z0), mark(z1))), mark(x1)), MARK(s(sel(z0, z1))))
   MARK(sel(s(cons(z0, z1)), x1)) -> c7(A__SEL(s(cons(mark(z0), z1)), mark(x1)), MARK(s(cons(z0, z1))))
   MARK(sel(s(s(z0)), x1)) -> c7(A__SEL(s(s(mark(z0))), mark(x1)), MARK(s(s(z0))))
   MARK(sel(s(0), x1)) -> c7(A__SEL(s(0), mark(x1)), MARK(s(0)))
   MARK(sel(s(x0), x1)) -> c7(MARK(s(x0)))
   MARK(sel(s(x0), s(z0))) -> c7(MARK(s(x0)))
   MARK(sel(s(x0), 0)) -> c7(MARK(s(x0)))
   MARK(sel(x0, from(x1))) -> c8(A__SEL(mark(x0), cons(mark(mark(x1)), from(s(mark(x1))))), MARK(from(x1)))
   MARK(sel(x0, from(from(z0)))) -> c8(A__SEL(mark(x0), a__from(a__from(mark(z0)))), MARK(from(from(z0))))
   MARK(sel(x0, from(sel(z0, z1)))) -> c8(A__SEL(mark(x0), a__from(a__sel(mark(z0), mark(z1)))), MARK(from(sel(z0, z1))))
   MARK(sel(x0, from(cons(z0, z1)))) -> c8(A__SEL(mark(x0), a__from(cons(mark(z0), z1))), MARK(from(cons(z0, z1))))
   MARK(sel(x0, from(s(z0)))) -> c8(A__SEL(mark(x0), a__from(s(mark(z0)))), MARK(from(s(z0))))
   MARK(sel(x0, from(0))) -> c8(A__SEL(mark(x0), a__from(0)), MARK(from(0)))
   MARK(sel(from(z0), from(x1))) -> c8(A__SEL(a__from(mark(z0)), a__from(mark(x1))), MARK(from(x1)))
   MARK(sel(sel(z0, z1), from(x1))) -> c8(A__SEL(a__sel(mark(z0), mark(z1)), a__from(mark(x1))), MARK(from(x1)))
   MARK(sel(s(z0), from(x1))) -> c8(A__SEL(s(mark(z0)), a__from(mark(x1))), MARK(from(x1)))
   MARK(sel(0, from(x1))) -> c8(A__SEL(0, a__from(mark(x1))), MARK(from(x1)))
   MARK(sel(x0, from(x1))) -> c8(MARK(from(x1)))
   MARK(sel(cons(z0, z1), from(x1))) -> c8(MARK(from(x1)))
S tuples:
   A__FROM(z0) -> c(MARK(z0))
   A__SEL(0, cons(z0, z1)) -> c2(MARK(z0))
   MARK(from(z0)) -> c6(A__FROM(mark(z0)), MARK(z0))
   MARK(cons(z0, z1)) -> c9(MARK(z0))
   MARK(s(z0)) -> c10(MARK(z0))
   A__SEL(s(x0), cons(x1, s(z0))) -> c3(MARK(x0))
   A__SEL(s(x0), cons(x1, 0)) -> c3(MARK(x0))
   A__SEL(s(cons(z0, z1)), cons(x1, x2)) -> c3(MARK(cons(z0, z1)))
   A__SEL(s(x0), cons(x1, s(z0))) -> c4(MARK(s(z0)))
   A__SEL(s(cons(z0, z1)), cons(x1, x2)) -> c4(MARK(x2))
   MARK(sel(x0, s(z0))) -> c7(MARK(x0))
   MARK(sel(x0, 0)) -> c7(MARK(x0))
   MARK(sel(cons(z0, z1), x1)) -> c7(MARK(cons(z0, z1)))
   MARK(sel(x0, sel(z0, z1))) -> c8(A__SEL(mark(x0), a__sel(mark(z0), mark(z1))), MARK(sel(z0, z1)))
   MARK(sel(x0, cons(z0, z1))) -> c8(A__SEL(mark(x0), cons(mark(z0), z1)), MARK(cons(z0, z1)))
   MARK(sel(from(z0), x1)) -> c8(A__SEL(a__from(mark(z0)), mark(x1)), MARK(x1))
   MARK(sel(sel(z0, z1), x1)) -> c8(A__SEL(a__sel(mark(z0), mark(z1)), mark(x1)), MARK(x1))
   MARK(sel(s(z0), x1)) -> c8(A__SEL(s(mark(z0)), mark(x1)), MARK(x1))
   MARK(sel(0, x1)) -> c8(A__SEL(0, mark(x1)), MARK(x1))
   MARK(sel(x0, s(z0))) -> c8(MARK(s(z0)))
   MARK(sel(cons(z0, z1), x1)) -> c8(MARK(x1))
   A__SEL(s(x0), cons(x1, from(x2))) -> c3(A__SEL(mark(x0), cons(mark(mark(x2)), from(s(mark(x2))))), MARK(x0))
   A__SEL(s(x0), cons(x1, from(from(z0)))) -> c3(A__SEL(mark(x0), a__from(a__from(mark(z0)))), MARK(x0))
   A__SEL(s(x0), cons(x1, from(sel(z0, z1)))) -> c3(A__SEL(mark(x0), a__from(a__sel(mark(z0), mark(z1)))), MARK(x0))
   A__SEL(s(x0), cons(x1, from(cons(z0, z1)))) -> c3(A__SEL(mark(x0), a__from(cons(mark(z0), z1))), MARK(x0))
   A__SEL(s(x0), cons(x1, from(s(z0)))) -> c3(A__SEL(mark(x0), a__from(s(mark(z0)))), MARK(x0))
   A__SEL(s(x0), cons(x1, from(0))) -> c3(A__SEL(mark(x0), a__from(0)), MARK(x0))
   A__SEL(s(from(z0)), cons(x1, from(x2))) -> c3(A__SEL(a__from(mark(z0)), a__from(mark(x2))), MARK(from(z0)))
   A__SEL(s(sel(z0, z1)), cons(x1, from(x2))) -> c3(A__SEL(a__sel(mark(z0), mark(z1)), a__from(mark(x2))), MARK(sel(z0, z1)))
   A__SEL(s(s(z0)), cons(x1, from(x2))) -> c3(A__SEL(s(mark(z0)), a__from(mark(x2))), MARK(s(z0)))
   A__SEL(s(x0), cons(x1, from(x2))) -> c3(MARK(x0))
   A__SEL(s(cons(z0, z1)), cons(x1, from(x2))) -> c3(MARK(cons(z0, z1)))
   A__SEL(s(0), cons(x1, from(x2))) -> c3(A__SEL(0, a__from(mark(x2))))
   A__SEL(s(x0), cons(x1, sel(x2, from(z0)))) -> c3(A__SEL(mark(x0), a__sel(mark(x2), a__from(mark(z0)))), MARK(x0))
   A__SEL(s(x0), cons(x1, sel(x2, sel(z0, z1)))) -> c3(A__SEL(mark(x0), a__sel(mark(x2), a__sel(mark(z0), mark(z1)))), MARK(x0))
   A__SEL(s(x0), cons(x1, sel(x2, cons(z0, z1)))) -> c3(A__SEL(mark(x0), a__sel(mark(x2), cons(mark(z0), z1))), MARK(x0))
   A__SEL(s(x0), cons(x1, sel(x2, s(z0)))) -> c3(A__SEL(mark(x0), a__sel(mark(x2), s(mark(z0)))), MARK(x0))
   A__SEL(s(x0), cons(x1, sel(x2, 0))) -> c3(A__SEL(mark(x0), a__sel(mark(x2), 0)), MARK(x0))
   A__SEL(s(x0), cons(x1, sel(from(z0), x3))) -> c3(A__SEL(mark(x0), a__sel(a__from(mark(z0)), mark(x3))), MARK(x0))
   A__SEL(s(x0), cons(x1, sel(sel(z0, z1), x3))) -> c3(A__SEL(mark(x0), a__sel(a__sel(mark(z0), mark(z1)), mark(x3))), MARK(x0))
   A__SEL(s(x0), cons(x1, sel(cons(z0, z1), x3))) -> c3(A__SEL(mark(x0), a__sel(cons(mark(z0), z1), mark(x3))), MARK(x0))
   A__SEL(s(x0), cons(x1, sel(s(z0), x3))) -> c3(A__SEL(mark(x0), a__sel(s(mark(z0)), mark(x3))), MARK(x0))
   A__SEL(s(x0), cons(x1, sel(0, x3))) -> c3(A__SEL(mark(x0), a__sel(0, mark(x3))), MARK(x0))
   A__SEL(s(from(z0)), cons(x1, sel(x2, x3))) -> c3(A__SEL(a__from(mark(z0)), a__sel(mark(x2), mark(x3))), MARK(from(z0)))
   A__SEL(s(sel(z0, z1)), cons(x1, sel(x2, x3))) -> c3(A__SEL(a__sel(mark(z0), mark(z1)), a__sel(mark(x2), mark(x3))), MARK(sel(z0, z1)))
   A__SEL(s(s(z0)), cons(x1, sel(x2, x3))) -> c3(A__SEL(s(mark(z0)), a__sel(mark(x2), mark(x3))), MARK(s(z0)))
   A__SEL(s(x0), cons(x1, sel(x2, x3))) -> c3(MARK(x0))
   A__SEL(s(cons(z0, z1)), cons(x1, sel(x2, x3))) -> c3(MARK(cons(z0, z1)))
   A__SEL(s(0), cons(x1, sel(x2, x3))) -> c3(A__SEL(0, a__sel(mark(x2), mark(x3))))
   A__SEL(s(x0), cons(x1, cons(from(z0), x3))) -> c3(A__SEL(mark(x0), cons(a__from(mark(z0)), x3)), MARK(x0))
   A__SEL(s(x0), cons(x1, cons(sel(z0, z1), x3))) -> c3(A__SEL(mark(x0), cons(a__sel(mark(z0), mark(z1)), x3)), MARK(x0))
   A__SEL(s(x0), cons(x1, cons(cons(z0, z1), x3))) -> c3(A__SEL(mark(x0), cons(cons(mark(z0), z1), x3)), MARK(x0))
   A__SEL(s(x0), cons(x1, cons(s(z0), x3))) -> c3(A__SEL(mark(x0), cons(s(mark(z0)), x3)), MARK(x0))
   A__SEL(s(x0), cons(x1, cons(0, x3))) -> c3(A__SEL(mark(x0), cons(0, x3)), MARK(x0))
   A__SEL(s(from(z0)), cons(x1, cons(x2, x3))) -> c3(A__SEL(a__from(mark(z0)), cons(mark(x2), x3)), MARK(from(z0)))
   A__SEL(s(sel(z0, z1)), cons(x1, cons(x2, x3))) -> c3(A__SEL(a__sel(mark(z0), mark(z1)), cons(mark(x2), x3)), MARK(sel(z0, z1)))
   A__SEL(s(s(z0)), cons(x1, cons(x2, x3))) -> c3(A__SEL(s(mark(z0)), cons(mark(x2), x3)), MARK(s(z0)))
   A__SEL(s(cons(z0, z1)), cons(x1, cons(x2, x3))) -> c3(MARK(cons(z0, z1)))
   A__SEL(s(0), cons(x1, cons(x2, x3))) -> c3(A__SEL(0, cons(mark(x2), x3)))
   A__SEL(s(from(from(z0))), cons(x1, x2)) -> c3(A__SEL(a__from(a__from(mark(z0))), mark(x2)), MARK(from(from(z0))))
   A__SEL(s(from(sel(z0, z1))), cons(x1, x2)) -> c3(A__SEL(a__from(a__sel(mark(z0), mark(z1))), mark(x2)), MARK(from(sel(z0, z1))))
   A__SEL(s(from(cons(z0, z1))), cons(x1, x2)) -> c3(A__SEL(a__from(cons(mark(z0), z1)), mark(x2)), MARK(from(cons(z0, z1))))
   A__SEL(s(from(s(z0))), cons(x1, x2)) -> c3(A__SEL(a__from(s(mark(z0))), mark(x2)), MARK(from(s(z0))))
   A__SEL(s(from(0)), cons(x1, x2)) -> c3(A__SEL(a__from(0), mark(x2)), MARK(from(0)))
   A__SEL(s(from(x0)), cons(x1, x2)) -> c3(MARK(from(x0)))
   A__SEL(s(from(x0)), cons(x1, s(z0))) -> c3(MARK(from(x0)))
   A__SEL(s(from(x0)), cons(x1, 0)) -> c3(MARK(from(x0)))
   A__SEL(s(sel(x0, from(z0))), cons(x2, x3)) -> c3(A__SEL(a__sel(mark(x0), a__from(mark(z0))), mark(x3)), MARK(sel(x0, from(z0))))
   A__SEL(s(sel(x0, sel(z0, z1))), cons(x2, x3)) -> c3(A__SEL(a__sel(mark(x0), a__sel(mark(z0), mark(z1))), mark(x3)), MARK(sel(x0, sel(z0, z1))))
   A__SEL(s(sel(x0, cons(z0, z1))), cons(x2, x3)) -> c3(A__SEL(a__sel(mark(x0), cons(mark(z0), z1)), mark(x3)), MARK(sel(x0, cons(z0, z1))))
   A__SEL(s(sel(x0, s(z0))), cons(x2, x3)) -> c3(A__SEL(a__sel(mark(x0), s(mark(z0))), mark(x3)), MARK(sel(x0, s(z0))))
   A__SEL(s(sel(x0, 0)), cons(x2, x3)) -> c3(A__SEL(a__sel(mark(x0), 0), mark(x3)), MARK(sel(x0, 0)))
   A__SEL(s(sel(from(z0), x1)), cons(x2, x3)) -> c3(A__SEL(a__sel(a__from(mark(z0)), mark(x1)), mark(x3)), MARK(sel(from(z0), x1)))
   A__SEL(s(sel(sel(z0, z1), x1)), cons(x2, x3)) -> c3(A__SEL(a__sel(a__sel(mark(z0), mark(z1)), mark(x1)), mark(x3)), MARK(sel(sel(z0, z1), x1)))
   A__SEL(s(sel(cons(z0, z1), x1)), cons(x2, x3)) -> c3(A__SEL(a__sel(cons(mark(z0), z1), mark(x1)), mark(x3)), MARK(sel(cons(z0, z1), x1)))
   A__SEL(s(sel(s(z0), x1)), cons(x2, x3)) -> c3(A__SEL(a__sel(s(mark(z0)), mark(x1)), mark(x3)), MARK(sel(s(z0), x1)))
   A__SEL(s(sel(0, x1)), cons(x2, x3)) -> c3(A__SEL(a__sel(0, mark(x1)), mark(x3)), MARK(sel(0, x1)))
   A__SEL(s(sel(x0, x1)), cons(x2, s(z0))) -> c3(MARK(sel(x0, x1)))
   A__SEL(s(sel(x0, x1)), cons(x2, 0)) -> c3(MARK(sel(x0, x1)))
   A__SEL(s(sel(x0, x1)), cons(x2, x3)) -> c3(MARK(sel(x0, x1)))
   A__SEL(s(s(from(z0))), cons(x1, x2)) -> c3(A__SEL(s(a__from(mark(z0))), mark(x2)), MARK(s(from(z0))))
   A__SEL(s(s(sel(z0, z1))), cons(x1, x2)) -> c3(A__SEL(s(a__sel(mark(z0), mark(z1))), mark(x2)), MARK(s(sel(z0, z1))))
   A__SEL(s(s(cons(z0, z1))), cons(x1, x2)) -> c3(A__SEL(s(cons(mark(z0), z1)), mark(x2)), MARK(s(cons(z0, z1))))
   A__SEL(s(s(s(z0))), cons(x1, x2)) -> c3(A__SEL(s(s(mark(z0))), mark(x2)), MARK(s(s(z0))))
   A__SEL(s(s(0)), cons(x1, x2)) -> c3(A__SEL(s(0), mark(x2)), MARK(s(0)))
   A__SEL(s(s(x0)), cons(x1, x2)) -> c3(MARK(s(x0)))
   A__SEL(s(s(x0)), cons(x1, s(z0))) -> c3(MARK(s(x0)))
   A__SEL(s(s(x0)), cons(x1, 0)) -> c3(MARK(s(x0)))
   A__SEL(s(x0), cons(x1, from(x2))) -> c4(A__SEL(mark(x0), cons(mark(mark(x2)), from(s(mark(x2))))), MARK(from(x2)))
   A__SEL(s(x0), cons(x1, from(from(z0)))) -> c4(A__SEL(mark(x0), a__from(a__from(mark(z0)))), MARK(from(from(z0))))
   A__SEL(s(x0), cons(x1, from(sel(z0, z1)))) -> c4(A__SEL(mark(x0), a__from(a__sel(mark(z0), mark(z1)))), MARK(from(sel(z0, z1))))
   A__SEL(s(x0), cons(x1, from(cons(z0, z1)))) -> c4(A__SEL(mark(x0), a__from(cons(mark(z0), z1))), MARK(from(cons(z0, z1))))
   A__SEL(s(x0), cons(x1, from(s(z0)))) -> c4(A__SEL(mark(x0), a__from(s(mark(z0)))), MARK(from(s(z0))))
   A__SEL(s(x0), cons(x1, from(0))) -> c4(A__SEL(mark(x0), a__from(0)), MARK(from(0)))
   A__SEL(s(from(z0)), cons(x1, from(x2))) -> c4(A__SEL(a__from(mark(z0)), a__from(mark(x2))), MARK(from(x2)))
   A__SEL(s(sel(z0, z1)), cons(x1, from(x2))) -> c4(A__SEL(a__sel(mark(z0), mark(z1)), a__from(mark(x2))), MARK(from(x2)))
   A__SEL(s(s(z0)), cons(x1, from(x2))) -> c4(A__SEL(s(mark(z0)), a__from(mark(x2))), MARK(from(x2)))
   A__SEL(s(0), cons(x1, from(x2))) -> c4(A__SEL(0, a__from(mark(x2))), MARK(from(x2)))
   A__SEL(s(x0), cons(x1, from(x2))) -> c4(MARK(from(x2)))
   A__SEL(s(cons(z0, z1)), cons(x1, from(x2))) -> c4(MARK(from(x2)))
   A__SEL(s(x0), cons(x1, sel(x2, from(z0)))) -> c4(A__SEL(mark(x0), a__sel(mark(x2), a__from(mark(z0)))), MARK(sel(x2, from(z0))))
   A__SEL(s(x0), cons(x1, sel(x2, sel(z0, z1)))) -> c4(A__SEL(mark(x0), a__sel(mark(x2), a__sel(mark(z0), mark(z1)))), MARK(sel(x2, sel(z0, z1))))
   A__SEL(s(x0), cons(x1, sel(x2, cons(z0, z1)))) -> c4(A__SEL(mark(x0), a__sel(mark(x2), cons(mark(z0), z1))), MARK(sel(x2, cons(z0, z1))))
   A__SEL(s(x0), cons(x1, sel(x2, s(z0)))) -> c4(A__SEL(mark(x0), a__sel(mark(x2), s(mark(z0)))), MARK(sel(x2, s(z0))))
   A__SEL(s(x0), cons(x1, sel(x2, 0))) -> c4(A__SEL(mark(x0), a__sel(mark(x2), 0)), MARK(sel(x2, 0)))
   A__SEL(s(x0), cons(x1, sel(from(z0), x3))) -> c4(A__SEL(mark(x0), a__sel(a__from(mark(z0)), mark(x3))), MARK(sel(from(z0), x3)))
   A__SEL(s(x0), cons(x1, sel(sel(z0, z1), x3))) -> c4(A__SEL(mark(x0), a__sel(a__sel(mark(z0), mark(z1)), mark(x3))), MARK(sel(sel(z0, z1), x3)))
   A__SEL(s(x0), cons(x1, sel(cons(z0, z1), x3))) -> c4(A__SEL(mark(x0), a__sel(cons(mark(z0), z1), mark(x3))), MARK(sel(cons(z0, z1), x3)))
   A__SEL(s(x0), cons(x1, sel(s(z0), x3))) -> c4(A__SEL(mark(x0), a__sel(s(mark(z0)), mark(x3))), MARK(sel(s(z0), x3)))
   A__SEL(s(x0), cons(x1, sel(0, x3))) -> c4(A__SEL(mark(x0), a__sel(0, mark(x3))), MARK(sel(0, x3)))
   A__SEL(s(from(z0)), cons(x1, sel(x2, x3))) -> c4(A__SEL(a__from(mark(z0)), a__sel(mark(x2), mark(x3))), MARK(sel(x2, x3)))
   A__SEL(s(sel(z0, z1)), cons(x1, sel(x2, x3))) -> c4(A__SEL(a__sel(mark(z0), mark(z1)), a__sel(mark(x2), mark(x3))), MARK(sel(x2, x3)))
   A__SEL(s(s(z0)), cons(x1, sel(x2, x3))) -> c4(A__SEL(s(mark(z0)), a__sel(mark(x2), mark(x3))), MARK(sel(x2, x3)))
   A__SEL(s(0), cons(x1, sel(x2, x3))) -> c4(A__SEL(0, a__sel(mark(x2), mark(x3))), MARK(sel(x2, x3)))
   A__SEL(s(x0), cons(x1, sel(x2, x3))) -> c4(MARK(sel(x2, x3)))
   A__SEL(s(cons(z0, z1)), cons(x1, sel(x2, x3))) -> c4(MARK(sel(x2, x3)))
   A__SEL(s(x0), cons(x1, cons(from(z0), x3))) -> c4(A__SEL(mark(x0), cons(a__from(mark(z0)), x3)), MARK(cons(from(z0), x3)))
   A__SEL(s(x0), cons(x1, cons(sel(z0, z1), x3))) -> c4(A__SEL(mark(x0), cons(a__sel(mark(z0), mark(z1)), x3)), MARK(cons(sel(z0, z1), x3)))
   A__SEL(s(x0), cons(x1, cons(cons(z0, z1), x3))) -> c4(A__SEL(mark(x0), cons(cons(mark(z0), z1), x3)), MARK(cons(cons(z0, z1), x3)))
   A__SEL(s(x0), cons(x1, cons(s(z0), x3))) -> c4(A__SEL(mark(x0), cons(s(mark(z0)), x3)), MARK(cons(s(z0), x3)))
   A__SEL(s(x0), cons(x1, cons(0, x3))) -> c4(A__SEL(mark(x0), cons(0, x3)), MARK(cons(0, x3)))
   A__SEL(s(from(z0)), cons(x1, cons(x2, x3))) -> c4(A__SEL(a__from(mark(z0)), cons(mark(x2), x3)), MARK(cons(x2, x3)))
   A__SEL(s(sel(z0, z1)), cons(x1, cons(x2, x3))) -> c4(A__SEL(a__sel(mark(z0), mark(z1)), cons(mark(x2), x3)), MARK(cons(x2, x3)))
   A__SEL(s(s(z0)), cons(x1, cons(x2, x3))) -> c4(A__SEL(s(mark(z0)), cons(mark(x2), x3)), MARK(cons(x2, x3)))
   A__SEL(s(0), cons(x1, cons(x2, x3))) -> c4(A__SEL(0, cons(mark(x2), x3)), MARK(cons(x2, x3)))
   A__SEL(s(x0), cons(x1, cons(x2, x3))) -> c4(MARK(cons(x2, x3)))
   A__SEL(s(cons(z0, z1)), cons(x1, cons(x2, x3))) -> c4(MARK(cons(x2, x3)))
   A__SEL(s(from(from(z0))), cons(x1, x2)) -> c4(A__SEL(a__from(a__from(mark(z0))), mark(x2)), MARK(x2))
   A__SEL(s(from(sel(z0, z1))), cons(x1, x2)) -> c4(A__SEL(a__from(a__sel(mark(z0), mark(z1))), mark(x2)), MARK(x2))
   A__SEL(s(from(cons(z0, z1))), cons(x1, x2)) -> c4(A__SEL(a__from(cons(mark(z0), z1)), mark(x2)), MARK(x2))
   A__SEL(s(from(s(z0))), cons(x1, x2)) -> c4(A__SEL(a__from(s(mark(z0))), mark(x2)), MARK(x2))
   A__SEL(s(from(0)), cons(x1, x2)) -> c4(A__SEL(a__from(0), mark(x2)), MARK(x2))
   A__SEL(s(from(x0)), cons(x1, s(z0))) -> c4(MARK(s(z0)))
   A__SEL(s(from(x0)), cons(x1, x2)) -> c4(MARK(x2))
   A__SEL(s(sel(x0, from(z0))), cons(x2, x3)) -> c4(A__SEL(a__sel(mark(x0), a__from(mark(z0))), mark(x3)), MARK(x3))
   A__SEL(s(sel(x0, sel(z0, z1))), cons(x2, x3)) -> c4(A__SEL(a__sel(mark(x0), a__sel(mark(z0), mark(z1))), mark(x3)), MARK(x3))
   A__SEL(s(sel(x0, cons(z0, z1))), cons(x2, x3)) -> c4(A__SEL(a__sel(mark(x0), cons(mark(z0), z1)), mark(x3)), MARK(x3))
   A__SEL(s(sel(x0, s(z0))), cons(x2, x3)) -> c4(A__SEL(a__sel(mark(x0), s(mark(z0))), mark(x3)), MARK(x3))
   A__SEL(s(sel(x0, 0)), cons(x2, x3)) -> c4(A__SEL(a__sel(mark(x0), 0), mark(x3)), MARK(x3))
   A__SEL(s(sel(from(z0), x1)), cons(x2, x3)) -> c4(A__SEL(a__sel(a__from(mark(z0)), mark(x1)), mark(x3)), MARK(x3))
   A__SEL(s(sel(sel(z0, z1), x1)), cons(x2, x3)) -> c4(A__SEL(a__sel(a__sel(mark(z0), mark(z1)), mark(x1)), mark(x3)), MARK(x3))
   A__SEL(s(sel(cons(z0, z1), x1)), cons(x2, x3)) -> c4(A__SEL(a__sel(cons(mark(z0), z1), mark(x1)), mark(x3)), MARK(x3))
   A__SEL(s(sel(s(z0), x1)), cons(x2, x3)) -> c4(A__SEL(a__sel(s(mark(z0)), mark(x1)), mark(x3)), MARK(x3))
   A__SEL(s(sel(0, x1)), cons(x2, x3)) -> c4(A__SEL(a__sel(0, mark(x1)), mark(x3)), MARK(x3))
   A__SEL(s(sel(x0, x1)), cons(x2, s(z0))) -> c4(MARK(s(z0)))
   A__SEL(s(sel(x0, x1)), cons(x2, x3)) -> c4(MARK(x3))
   A__SEL(s(s(from(z0))), cons(x1, x2)) -> c4(A__SEL(s(a__from(mark(z0))), mark(x2)), MARK(x2))
   A__SEL(s(s(sel(z0, z1))), cons(x1, x2)) -> c4(A__SEL(s(a__sel(mark(z0), mark(z1))), mark(x2)), MARK(x2))
   A__SEL(s(s(cons(z0, z1))), cons(x1, x2)) -> c4(A__SEL(s(cons(mark(z0), z1)), mark(x2)), MARK(x2))
   A__SEL(s(s(s(z0))), cons(x1, x2)) -> c4(A__SEL(s(s(mark(z0))), mark(x2)), MARK(x2))
   A__SEL(s(s(0)), cons(x1, x2)) -> c4(A__SEL(s(0), mark(x2)), MARK(x2))
   A__SEL(s(s(x0)), cons(x1, s(z0))) -> c4(MARK(s(z0)))
   A__SEL(s(0), cons(x0, s(z0))) -> c4(MARK(s(z0)))
   MARK(sel(x0, from(x1))) -> c7(A__SEL(mark(x0), cons(mark(mark(x1)), from(s(mark(x1))))), MARK(x0))
   MARK(sel(x0, from(from(z0)))) -> c7(A__SEL(mark(x0), a__from(a__from(mark(z0)))), MARK(x0))
   MARK(sel(x0, from(sel(z0, z1)))) -> c7(A__SEL(mark(x0), a__from(a__sel(mark(z0), mark(z1)))), MARK(x0))
   MARK(sel(x0, from(cons(z0, z1)))) -> c7(A__SEL(mark(x0), a__from(cons(mark(z0), z1))), MARK(x0))
   MARK(sel(x0, from(s(z0)))) -> c7(A__SEL(mark(x0), a__from(s(mark(z0)))), MARK(x0))
   MARK(sel(x0, from(0))) -> c7(A__SEL(mark(x0), a__from(0)), MARK(x0))
   MARK(sel(from(z0), from(x1))) -> c7(A__SEL(a__from(mark(z0)), a__from(mark(x1))), MARK(from(z0)))
   MARK(sel(sel(z0, z1), from(x1))) -> c7(A__SEL(a__sel(mark(z0), mark(z1)), a__from(mark(x1))), MARK(sel(z0, z1)))
   MARK(sel(s(z0), from(x1))) -> c7(A__SEL(s(mark(z0)), a__from(mark(x1))), MARK(s(z0)))
   MARK(sel(x0, from(x1))) -> c7(MARK(x0))
   MARK(sel(cons(z0, z1), from(x1))) -> c7(MARK(cons(z0, z1)))
   MARK(sel(0, from(x1))) -> c7(A__SEL(0, a__from(mark(x1))))
   MARK(sel(x0, sel(x1, from(z0)))) -> c7(A__SEL(mark(x0), a__sel(mark(x1), a__from(mark(z0)))), MARK(x0))
   MARK(sel(x0, sel(x1, sel(z0, z1)))) -> c7(A__SEL(mark(x0), a__sel(mark(x1), a__sel(mark(z0), mark(z1)))), MARK(x0))
   MARK(sel(x0, sel(x1, cons(z0, z1)))) -> c7(A__SEL(mark(x0), a__sel(mark(x1), cons(mark(z0), z1))), MARK(x0))
   MARK(sel(x0, sel(x1, s(z0)))) -> c7(A__SEL(mark(x0), a__sel(mark(x1), s(mark(z0)))), MARK(x0))
   MARK(sel(x0, sel(x1, 0))) -> c7(A__SEL(mark(x0), a__sel(mark(x1), 0)), MARK(x0))
   MARK(sel(x0, sel(from(z0), x2))) -> c7(A__SEL(mark(x0), a__sel(a__from(mark(z0)), mark(x2))), MARK(x0))
   MARK(sel(x0, sel(sel(z0, z1), x2))) -> c7(A__SEL(mark(x0), a__sel(a__sel(mark(z0), mark(z1)), mark(x2))), MARK(x0))
   MARK(sel(x0, sel(cons(z0, z1), x2))) -> c7(A__SEL(mark(x0), a__sel(cons(mark(z0), z1), mark(x2))), MARK(x0))
   MARK(sel(x0, sel(s(z0), x2))) -> c7(A__SEL(mark(x0), a__sel(s(mark(z0)), mark(x2))), MARK(x0))
   MARK(sel(x0, sel(0, x2))) -> c7(A__SEL(mark(x0), a__sel(0, mark(x2))), MARK(x0))
   MARK(sel(from(z0), sel(x1, x2))) -> c7(A__SEL(a__from(mark(z0)), a__sel(mark(x1), mark(x2))), MARK(from(z0)))
   MARK(sel(sel(z0, z1), sel(x1, x2))) -> c7(A__SEL(a__sel(mark(z0), mark(z1)), a__sel(mark(x1), mark(x2))), MARK(sel(z0, z1)))
   MARK(sel(s(z0), sel(x1, x2))) -> c7(A__SEL(s(mark(z0)), a__sel(mark(x1), mark(x2))), MARK(s(z0)))
   MARK(sel(x0, sel(x1, x2))) -> c7(MARK(x0))
   MARK(sel(cons(z0, z1), sel(x1, x2))) -> c7(MARK(cons(z0, z1)))
   MARK(sel(0, sel(x1, x2))) -> c7(A__SEL(0, a__sel(mark(x1), mark(x2))))
   MARK(sel(x0, cons(from(z0), x2))) -> c7(A__SEL(mark(x0), cons(a__from(mark(z0)), x2)), MARK(x0))
   MARK(sel(x0, cons(sel(z0, z1), x2))) -> c7(A__SEL(mark(x0), cons(a__sel(mark(z0), mark(z1)), x2)), MARK(x0))
   MARK(sel(x0, cons(cons(z0, z1), x2))) -> c7(A__SEL(mark(x0), cons(cons(mark(z0), z1), x2)), MARK(x0))
   MARK(sel(x0, cons(s(z0), x2))) -> c7(A__SEL(mark(x0), cons(s(mark(z0)), x2)), MARK(x0))
   MARK(sel(x0, cons(0, x2))) -> c7(A__SEL(mark(x0), cons(0, x2)), MARK(x0))
   MARK(sel(from(z0), cons(x1, x2))) -> c7(A__SEL(a__from(mark(z0)), cons(mark(x1), x2)), MARK(from(z0)))
   MARK(sel(sel(z0, z1), cons(x1, x2))) -> c7(A__SEL(a__sel(mark(z0), mark(z1)), cons(mark(x1), x2)), MARK(sel(z0, z1)))
   MARK(sel(s(z0), cons(x1, x2))) -> c7(A__SEL(s(mark(z0)), cons(mark(x1), x2)), MARK(s(z0)))
   MARK(sel(cons(z0, z1), cons(x1, x2))) -> c7(MARK(cons(z0, z1)))
   MARK(sel(0, cons(x1, x2))) -> c7(A__SEL(0, cons(mark(x1), x2)))
   MARK(sel(from(from(z0)), x1)) -> c7(A__SEL(a__from(a__from(mark(z0))), mark(x1)), MARK(from(from(z0))))
   MARK(sel(from(sel(z0, z1)), x1)) -> c7(A__SEL(a__from(a__sel(mark(z0), mark(z1))), mark(x1)), MARK(from(sel(z0, z1))))
   MARK(sel(from(cons(z0, z1)), x1)) -> c7(A__SEL(a__from(cons(mark(z0), z1)), mark(x1)), MARK(from(cons(z0, z1))))
   MARK(sel(from(s(z0)), x1)) -> c7(A__SEL(a__from(s(mark(z0))), mark(x1)), MARK(from(s(z0))))
   MARK(sel(from(0), x1)) -> c7(A__SEL(a__from(0), mark(x1)), MARK(from(0)))
   MARK(sel(from(x0), x1)) -> c7(MARK(from(x0)))
   MARK(sel(from(x0), s(z0))) -> c7(MARK(from(x0)))
   MARK(sel(from(x0), 0)) -> c7(MARK(from(x0)))
   MARK(sel(sel(x0, from(z0)), x2)) -> c7(A__SEL(a__sel(mark(x0), a__from(mark(z0))), mark(x2)), MARK(sel(x0, from(z0))))
   MARK(sel(sel(x0, sel(z0, z1)), x2)) -> c7(A__SEL(a__sel(mark(x0), a__sel(mark(z0), mark(z1))), mark(x2)), MARK(sel(x0, sel(z0, z1))))
   MARK(sel(sel(x0, cons(z0, z1)), x2)) -> c7(A__SEL(a__sel(mark(x0), cons(mark(z0), z1)), mark(x2)), MARK(sel(x0, cons(z0, z1))))
   MARK(sel(sel(x0, s(z0)), x2)) -> c7(A__SEL(a__sel(mark(x0), s(mark(z0))), mark(x2)), MARK(sel(x0, s(z0))))
   MARK(sel(sel(x0, 0), x2)) -> c7(A__SEL(a__sel(mark(x0), 0), mark(x2)), MARK(sel(x0, 0)))
   MARK(sel(sel(from(z0), x1), x2)) -> c7(A__SEL(a__sel(a__from(mark(z0)), mark(x1)), mark(x2)), MARK(sel(from(z0), x1)))
   MARK(sel(sel(sel(z0, z1), x1), x2)) -> c7(A__SEL(a__sel(a__sel(mark(z0), mark(z1)), mark(x1)), mark(x2)), MARK(sel(sel(z0, z1), x1)))
   MARK(sel(sel(cons(z0, z1), x1), x2)) -> c7(A__SEL(a__sel(cons(mark(z0), z1), mark(x1)), mark(x2)), MARK(sel(cons(z0, z1), x1)))
   MARK(sel(sel(s(z0), x1), x2)) -> c7(A__SEL(a__sel(s(mark(z0)), mark(x1)), mark(x2)), MARK(sel(s(z0), x1)))
   MARK(sel(sel(0, x1), x2)) -> c7(A__SEL(a__sel(0, mark(x1)), mark(x2)), MARK(sel(0, x1)))
   MARK(sel(sel(x0, x1), s(z0))) -> c7(MARK(sel(x0, x1)))
   MARK(sel(sel(x0, x1), 0)) -> c7(MARK(sel(x0, x1)))
   MARK(sel(sel(x0, x1), x2)) -> c7(MARK(sel(x0, x1)))
   MARK(sel(s(from(z0)), x1)) -> c7(A__SEL(s(a__from(mark(z0))), mark(x1)), MARK(s(from(z0))))
   MARK(sel(s(sel(z0, z1)), x1)) -> c7(A__SEL(s(a__sel(mark(z0), mark(z1))), mark(x1)), MARK(s(sel(z0, z1))))
   MARK(sel(s(cons(z0, z1)), x1)) -> c7(A__SEL(s(cons(mark(z0), z1)), mark(x1)), MARK(s(cons(z0, z1))))
   MARK(sel(s(s(z0)), x1)) -> c7(A__SEL(s(s(mark(z0))), mark(x1)), MARK(s(s(z0))))
   MARK(sel(s(0), x1)) -> c7(A__SEL(s(0), mark(x1)), MARK(s(0)))
   MARK(sel(s(x0), x1)) -> c7(MARK(s(x0)))
   MARK(sel(s(x0), s(z0))) -> c7(MARK(s(x0)))
   MARK(sel(s(x0), 0)) -> c7(MARK(s(x0)))
   MARK(sel(x0, from(x1))) -> c8(A__SEL(mark(x0), cons(mark(mark(x1)), from(s(mark(x1))))), MARK(from(x1)))
   MARK(sel(x0, from(from(z0)))) -> c8(A__SEL(mark(x0), a__from(a__from(mark(z0)))), MARK(from(from(z0))))
   MARK(sel(x0, from(sel(z0, z1)))) -> c8(A__SEL(mark(x0), a__from(a__sel(mark(z0), mark(z1)))), MARK(from(sel(z0, z1))))
   MARK(sel(x0, from(cons(z0, z1)))) -> c8(A__SEL(mark(x0), a__from(cons(mark(z0), z1))), MARK(from(cons(z0, z1))))
   MARK(sel(x0, from(s(z0)))) -> c8(A__SEL(mark(x0), a__from(s(mark(z0)))), MARK(from(s(z0))))
   MARK(sel(x0, from(0))) -> c8(A__SEL(mark(x0), a__from(0)), MARK(from(0)))
   MARK(sel(from(z0), from(x1))) -> c8(A__SEL(a__from(mark(z0)), a__from(mark(x1))), MARK(from(x1)))
   MARK(sel(sel(z0, z1), from(x1))) -> c8(A__SEL(a__sel(mark(z0), mark(z1)), a__from(mark(x1))), MARK(from(x1)))
   MARK(sel(s(z0), from(x1))) -> c8(A__SEL(s(mark(z0)), a__from(mark(x1))), MARK(from(x1)))
   MARK(sel(0, from(x1))) -> c8(A__SEL(0, a__from(mark(x1))), MARK(from(x1)))
   MARK(sel(x0, from(x1))) -> c8(MARK(from(x1)))
   MARK(sel(cons(z0, z1), from(x1))) -> c8(MARK(from(x1)))
K tuples:none
Defined Rule Symbols:   a__from_1, a__sel_2, mark_1

Defined Pair Symbols:   A__FROM_1, A__SEL_2, MARK_1

Compound Symbols:   c_1, c2_1, c6_2, c9_1, c10_1, c3_1, c4_1, c7_1, c8_2, c8_1, c3_2, c4_2, c7_2


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

(173) CdtNarrowingProof (BOTH BOUNDS(ID, ID))
Use narrowing to replace MARK(sel(x0, sel(z0, z1))) -> c8(A__SEL(mark(x0), a__sel(mark(z0), mark(z1))), MARK(sel(z0, z1))) by 
   MARK(sel(x0, sel(x1, x2))) -> c8(A__SEL(mark(x0), sel(mark(x1), mark(x2))), MARK(sel(x1, x2)))
   MARK(sel(x0, sel(x1, from(z0)))) -> c8(A__SEL(mark(x0), a__sel(mark(x1), a__from(mark(z0)))), MARK(sel(x1, from(z0))))
   MARK(sel(x0, sel(x1, sel(z0, z1)))) -> c8(A__SEL(mark(x0), a__sel(mark(x1), a__sel(mark(z0), mark(z1)))), MARK(sel(x1, sel(z0, z1))))
   MARK(sel(x0, sel(x1, cons(z0, z1)))) -> c8(A__SEL(mark(x0), a__sel(mark(x1), cons(mark(z0), z1))), MARK(sel(x1, cons(z0, z1))))
   MARK(sel(x0, sel(x1, s(z0)))) -> c8(A__SEL(mark(x0), a__sel(mark(x1), s(mark(z0)))), MARK(sel(x1, s(z0))))
   MARK(sel(x0, sel(x1, 0))) -> c8(A__SEL(mark(x0), a__sel(mark(x1), 0)), MARK(sel(x1, 0)))
   MARK(sel(x0, sel(from(z0), x2))) -> c8(A__SEL(mark(x0), a__sel(a__from(mark(z0)), mark(x2))), MARK(sel(from(z0), x2)))
   MARK(sel(x0, sel(sel(z0, z1), x2))) -> c8(A__SEL(mark(x0), a__sel(a__sel(mark(z0), mark(z1)), mark(x2))), MARK(sel(sel(z0, z1), x2)))
   MARK(sel(x0, sel(cons(z0, z1), x2))) -> c8(A__SEL(mark(x0), a__sel(cons(mark(z0), z1), mark(x2))), MARK(sel(cons(z0, z1), x2)))
   MARK(sel(x0, sel(s(z0), x2))) -> c8(A__SEL(mark(x0), a__sel(s(mark(z0)), mark(x2))), MARK(sel(s(z0), x2)))
   MARK(sel(x0, sel(0, x2))) -> c8(A__SEL(mark(x0), a__sel(0, mark(x2))), MARK(sel(0, x2)))
   MARK(sel(from(z0), sel(x1, x2))) -> c8(A__SEL(a__from(mark(z0)), a__sel(mark(x1), mark(x2))), MARK(sel(x1, x2)))
   MARK(sel(sel(z0, z1), sel(x1, x2))) -> c8(A__SEL(a__sel(mark(z0), mark(z1)), a__sel(mark(x1), mark(x2))), MARK(sel(x1, x2)))
   MARK(sel(cons(z0, z1), sel(x1, x2))) -> c8(A__SEL(cons(mark(z0), z1), a__sel(mark(x1), mark(x2))), MARK(sel(x1, x2)))
   MARK(sel(s(z0), sel(x1, x2))) -> c8(A__SEL(s(mark(z0)), a__sel(mark(x1), mark(x2))), MARK(sel(x1, x2)))
   MARK(sel(0, sel(x1, x2))) -> c8(A__SEL(0, a__sel(mark(x1), mark(x2))), MARK(sel(x1, x2)))

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

(174)
Obligation:
Complexity Dependency Tuples Problem

Rules:
   a__from(z0) -> cons(mark(z0), from(s(z0)))
   a__from(z0) -> from(z0)
   a__sel(0, cons(z0, z1)) -> mark(z0)
   a__sel(s(z0), cons(z1, z2)) -> a__sel(mark(z0), mark(z2))
   a__sel(z0, z1) -> sel(z0, z1)
   mark(from(z0)) -> a__from(mark(z0))
   mark(sel(z0, z1)) -> a__sel(mark(z0), mark(z1))
   mark(cons(z0, z1)) -> cons(mark(z0), z1)
   mark(s(z0)) -> s(mark(z0))
   mark(0) -> 0
Tuples:
   A__FROM(z0) -> c(MARK(z0))
   A__SEL(0, cons(z0, z1)) -> c2(MARK(z0))
   MARK(from(z0)) -> c6(A__FROM(mark(z0)), MARK(z0))
   MARK(cons(z0, z1)) -> c9(MARK(z0))
   MARK(s(z0)) -> c10(MARK(z0))
   A__SEL(s(x0), cons(x1, s(z0))) -> c3(MARK(x0))
   A__SEL(s(x0), cons(x1, 0)) -> c3(MARK(x0))
   A__SEL(s(cons(z0, z1)), cons(x1, x2)) -> c3(MARK(cons(z0, z1)))
   A__SEL(s(x0), cons(x1, s(z0))) -> c4(MARK(s(z0)))
   A__SEL(s(cons(z0, z1)), cons(x1, x2)) -> c4(MARK(x2))
   MARK(sel(x0, s(z0))) -> c7(MARK(x0))
   MARK(sel(x0, 0)) -> c7(MARK(x0))
   MARK(sel(cons(z0, z1), x1)) -> c7(MARK(cons(z0, z1)))
   MARK(sel(x0, cons(z0, z1))) -> c8(A__SEL(mark(x0), cons(mark(z0), z1)), MARK(cons(z0, z1)))
   MARK(sel(from(z0), x1)) -> c8(A__SEL(a__from(mark(z0)), mark(x1)), MARK(x1))
   MARK(sel(sel(z0, z1), x1)) -> c8(A__SEL(a__sel(mark(z0), mark(z1)), mark(x1)), MARK(x1))
   MARK(sel(s(z0), x1)) -> c8(A__SEL(s(mark(z0)), mark(x1)), MARK(x1))
   MARK(sel(0, x1)) -> c8(A__SEL(0, mark(x1)), MARK(x1))
   MARK(sel(x0, s(z0))) -> c8(MARK(s(z0)))
   MARK(sel(cons(z0, z1), x1)) -> c8(MARK(x1))
   A__SEL(s(x0), cons(x1, from(x2))) -> c3(A__SEL(mark(x0), cons(mark(mark(x2)), from(s(mark(x2))))), MARK(x0))
   A__SEL(s(x0), cons(x1, from(from(z0)))) -> c3(A__SEL(mark(x0), a__from(a__from(mark(z0)))), MARK(x0))
   A__SEL(s(x0), cons(x1, from(sel(z0, z1)))) -> c3(A__SEL(mark(x0), a__from(a__sel(mark(z0), mark(z1)))), MARK(x0))
   A__SEL(s(x0), cons(x1, from(cons(z0, z1)))) -> c3(A__SEL(mark(x0), a__from(cons(mark(z0), z1))), MARK(x0))
   A__SEL(s(x0), cons(x1, from(s(z0)))) -> c3(A__SEL(mark(x0), a__from(s(mark(z0)))), MARK(x0))
   A__SEL(s(x0), cons(x1, from(0))) -> c3(A__SEL(mark(x0), a__from(0)), MARK(x0))
   A__SEL(s(from(z0)), cons(x1, from(x2))) -> c3(A__SEL(a__from(mark(z0)), a__from(mark(x2))), MARK(from(z0)))
   A__SEL(s(sel(z0, z1)), cons(x1, from(x2))) -> c3(A__SEL(a__sel(mark(z0), mark(z1)), a__from(mark(x2))), MARK(sel(z0, z1)))
   A__SEL(s(s(z0)), cons(x1, from(x2))) -> c3(A__SEL(s(mark(z0)), a__from(mark(x2))), MARK(s(z0)))
   A__SEL(s(x0), cons(x1, from(x2))) -> c3(MARK(x0))
   A__SEL(s(cons(z0, z1)), cons(x1, from(x2))) -> c3(MARK(cons(z0, z1)))
   A__SEL(s(0), cons(x1, from(x2))) -> c3(A__SEL(0, a__from(mark(x2))))
   A__SEL(s(x0), cons(x1, sel(x2, from(z0)))) -> c3(A__SEL(mark(x0), a__sel(mark(x2), a__from(mark(z0)))), MARK(x0))
   A__SEL(s(x0), cons(x1, sel(x2, sel(z0, z1)))) -> c3(A__SEL(mark(x0), a__sel(mark(x2), a__sel(mark(z0), mark(z1)))), MARK(x0))
   A__SEL(s(x0), cons(x1, sel(x2, cons(z0, z1)))) -> c3(A__SEL(mark(x0), a__sel(mark(x2), cons(mark(z0), z1))), MARK(x0))
   A__SEL(s(x0), cons(x1, sel(x2, s(z0)))) -> c3(A__SEL(mark(x0), a__sel(mark(x2), s(mark(z0)))), MARK(x0))
   A__SEL(s(x0), cons(x1, sel(x2, 0))) -> c3(A__SEL(mark(x0), a__sel(mark(x2), 0)), MARK(x0))
   A__SEL(s(x0), cons(x1, sel(from(z0), x3))) -> c3(A__SEL(mark(x0), a__sel(a__from(mark(z0)), mark(x3))), MARK(x0))
   A__SEL(s(x0), cons(x1, sel(sel(z0, z1), x3))) -> c3(A__SEL(mark(x0), a__sel(a__sel(mark(z0), mark(z1)), mark(x3))), MARK(x0))
   A__SEL(s(x0), cons(x1, sel(cons(z0, z1), x3))) -> c3(A__SEL(mark(x0), a__sel(cons(mark(z0), z1), mark(x3))), MARK(x0))
   A__SEL(s(x0), cons(x1, sel(s(z0), x3))) -> c3(A__SEL(mark(x0), a__sel(s(mark(z0)), mark(x3))), MARK(x0))
   A__SEL(s(x0), cons(x1, sel(0, x3))) -> c3(A__SEL(mark(x0), a__sel(0, mark(x3))), MARK(x0))
   A__SEL(s(from(z0)), cons(x1, sel(x2, x3))) -> c3(A__SEL(a__from(mark(z0)), a__sel(mark(x2), mark(x3))), MARK(from(z0)))
   A__SEL(s(sel(z0, z1)), cons(x1, sel(x2, x3))) -> c3(A__SEL(a__sel(mark(z0), mark(z1)), a__sel(mark(x2), mark(x3))), MARK(sel(z0, z1)))
   A__SEL(s(s(z0)), cons(x1, sel(x2, x3))) -> c3(A__SEL(s(mark(z0)), a__sel(mark(x2), mark(x3))), MARK(s(z0)))
   A__SEL(s(x0), cons(x1, sel(x2, x3))) -> c3(MARK(x0))
   A__SEL(s(cons(z0, z1)), cons(x1, sel(x2, x3))) -> c3(MARK(cons(z0, z1)))
   A__SEL(s(0), cons(x1, sel(x2, x3))) -> c3(A__SEL(0, a__sel(mark(x2), mark(x3))))
   A__SEL(s(x0), cons(x1, cons(from(z0), x3))) -> c3(A__SEL(mark(x0), cons(a__from(mark(z0)), x3)), MARK(x0))
   A__SEL(s(x0), cons(x1, cons(sel(z0, z1), x3))) -> c3(A__SEL(mark(x0), cons(a__sel(mark(z0), mark(z1)), x3)), MARK(x0))
   A__SEL(s(x0), cons(x1, cons(cons(z0, z1), x3))) -> c3(A__SEL(mark(x0), cons(cons(mark(z0), z1), x3)), MARK(x0))
   A__SEL(s(x0), cons(x1, cons(s(z0), x3))) -> c3(A__SEL(mark(x0), cons(s(mark(z0)), x3)), MARK(x0))
   A__SEL(s(x0), cons(x1, cons(0, x3))) -> c3(A__SEL(mark(x0), cons(0, x3)), MARK(x0))
   A__SEL(s(from(z0)), cons(x1, cons(x2, x3))) -> c3(A__SEL(a__from(mark(z0)), cons(mark(x2), x3)), MARK(from(z0)))
   A__SEL(s(sel(z0, z1)), cons(x1, cons(x2, x3))) -> c3(A__SEL(a__sel(mark(z0), mark(z1)), cons(mark(x2), x3)), MARK(sel(z0, z1)))
   A__SEL(s(s(z0)), cons(x1, cons(x2, x3))) -> c3(A__SEL(s(mark(z0)), cons(mark(x2), x3)), MARK(s(z0)))
   A__SEL(s(cons(z0, z1)), cons(x1, cons(x2, x3))) -> c3(MARK(cons(z0, z1)))
   A__SEL(s(0), cons(x1, cons(x2, x3))) -> c3(A__SEL(0, cons(mark(x2), x3)))
   A__SEL(s(from(from(z0))), cons(x1, x2)) -> c3(A__SEL(a__from(a__from(mark(z0))), mark(x2)), MARK(from(from(z0))))
   A__SEL(s(from(sel(z0, z1))), cons(x1, x2)) -> c3(A__SEL(a__from(a__sel(mark(z0), mark(z1))), mark(x2)), MARK(from(sel(z0, z1))))
   A__SEL(s(from(cons(z0, z1))), cons(x1, x2)) -> c3(A__SEL(a__from(cons(mark(z0), z1)), mark(x2)), MARK(from(cons(z0, z1))))
   A__SEL(s(from(s(z0))), cons(x1, x2)) -> c3(A__SEL(a__from(s(mark(z0))), mark(x2)), MARK(from(s(z0))))
   A__SEL(s(from(0)), cons(x1, x2)) -> c3(A__SEL(a__from(0), mark(x2)), MARK(from(0)))
   A__SEL(s(from(x0)), cons(x1, x2)) -> c3(MARK(from(x0)))
   A__SEL(s(from(x0)), cons(x1, s(z0))) -> c3(MARK(from(x0)))
   A__SEL(s(from(x0)), cons(x1, 0)) -> c3(MARK(from(x0)))
   A__SEL(s(sel(x0, from(z0))), cons(x2, x3)) -> c3(A__SEL(a__sel(mark(x0), a__from(mark(z0))), mark(x3)), MARK(sel(x0, from(z0))))
   A__SEL(s(sel(x0, sel(z0, z1))), cons(x2, x3)) -> c3(A__SEL(a__sel(mark(x0), a__sel(mark(z0), mark(z1))), mark(x3)), MARK(sel(x0, sel(z0, z1))))
   A__SEL(s(sel(x0, cons(z0, z1))), cons(x2, x3)) -> c3(A__SEL(a__sel(mark(x0), cons(mark(z0), z1)), mark(x3)), MARK(sel(x0, cons(z0, z1))))
   A__SEL(s(sel(x0, s(z0))), cons(x2, x3)) -> c3(A__SEL(a__sel(mark(x0), s(mark(z0))), mark(x3)), MARK(sel(x0, s(z0))))
   A__SEL(s(sel(x0, 0)), cons(x2, x3)) -> c3(A__SEL(a__sel(mark(x0), 0), mark(x3)), MARK(sel(x0, 0)))
   A__SEL(s(sel(from(z0), x1)), cons(x2, x3)) -> c3(A__SEL(a__sel(a__from(mark(z0)), mark(x1)), mark(x3)), MARK(sel(from(z0), x1)))
   A__SEL(s(sel(sel(z0, z1), x1)), cons(x2, x3)) -> c3(A__SEL(a__sel(a__sel(mark(z0), mark(z1)), mark(x1)), mark(x3)), MARK(sel(sel(z0, z1), x1)))
   A__SEL(s(sel(cons(z0, z1), x1)), cons(x2, x3)) -> c3(A__SEL(a__sel(cons(mark(z0), z1), mark(x1)), mark(x3)), MARK(sel(cons(z0, z1), x1)))
   A__SEL(s(sel(s(z0), x1)), cons(x2, x3)) -> c3(A__SEL(a__sel(s(mark(z0)), mark(x1)), mark(x3)), MARK(sel(s(z0), x1)))
   A__SEL(s(sel(0, x1)), cons(x2, x3)) -> c3(A__SEL(a__sel(0, mark(x1)), mark(x3)), MARK(sel(0, x1)))
   A__SEL(s(sel(x0, x1)), cons(x2, s(z0))) -> c3(MARK(sel(x0, x1)))
   A__SEL(s(sel(x0, x1)), cons(x2, 0)) -> c3(MARK(sel(x0, x1)))
   A__SEL(s(sel(x0, x1)), cons(x2, x3)) -> c3(MARK(sel(x0, x1)))
   A__SEL(s(s(from(z0))), cons(x1, x2)) -> c3(A__SEL(s(a__from(mark(z0))), mark(x2)), MARK(s(from(z0))))
   A__SEL(s(s(sel(z0, z1))), cons(x1, x2)) -> c3(A__SEL(s(a__sel(mark(z0), mark(z1))), mark(x2)), MARK(s(sel(z0, z1))))
   A__SEL(s(s(cons(z0, z1))), cons(x1, x2)) -> c3(A__SEL(s(cons(mark(z0), z1)), mark(x2)), MARK(s(cons(z0, z1))))
   A__SEL(s(s(s(z0))), cons(x1, x2)) -> c3(A__SEL(s(s(mark(z0))), mark(x2)), MARK(s(s(z0))))
   A__SEL(s(s(0)), cons(x1, x2)) -> c3(A__SEL(s(0), mark(x2)), MARK(s(0)))
   A__SEL(s(s(x0)), cons(x1, x2)) -> c3(MARK(s(x0)))
   A__SEL(s(s(x0)), cons(x1, s(z0))) -> c3(MARK(s(x0)))
   A__SEL(s(s(x0)), cons(x1, 0)) -> c3(MARK(s(x0)))
   A__SEL(s(x0), cons(x1, from(x2))) -> c4(A__SEL(mark(x0), cons(mark(mark(x2)), from(s(mark(x2))))), MARK(from(x2)))
   A__SEL(s(x0), cons(x1, from(from(z0)))) -> c4(A__SEL(mark(x0), a__from(a__from(mark(z0)))), MARK(from(from(z0))))
   A__SEL(s(x0), cons(x1, from(sel(z0, z1)))) -> c4(A__SEL(mark(x0), a__from(a__sel(mark(z0), mark(z1)))), MARK(from(sel(z0, z1))))
   A__SEL(s(x0), cons(x1, from(cons(z0, z1)))) -> c4(A__SEL(mark(x0), a__from(cons(mark(z0), z1))), MARK(from(cons(z0, z1))))
   A__SEL(s(x0), cons(x1, from(s(z0)))) -> c4(A__SEL(mark(x0), a__from(s(mark(z0)))), MARK(from(s(z0))))
   A__SEL(s(x0), cons(x1, from(0))) -> c4(A__SEL(mark(x0), a__from(0)), MARK(from(0)))
   A__SEL(s(from(z0)), cons(x1, from(x2))) -> c4(A__SEL(a__from(mark(z0)), a__from(mark(x2))), MARK(from(x2)))
   A__SEL(s(sel(z0, z1)), cons(x1, from(x2))) -> c4(A__SEL(a__sel(mark(z0), mark(z1)), a__from(mark(x2))), MARK(from(x2)))
   A__SEL(s(s(z0)), cons(x1, from(x2))) -> c4(A__SEL(s(mark(z0)), a__from(mark(x2))), MARK(from(x2)))
   A__SEL(s(0), cons(x1, from(x2))) -> c4(A__SEL(0, a__from(mark(x2))), MARK(from(x2)))
   A__SEL(s(x0), cons(x1, from(x2))) -> c4(MARK(from(x2)))
   A__SEL(s(cons(z0, z1)), cons(x1, from(x2))) -> c4(MARK(from(x2)))
   A__SEL(s(x0), cons(x1, sel(x2, from(z0)))) -> c4(A__SEL(mark(x0), a__sel(mark(x2), a__from(mark(z0)))), MARK(sel(x2, from(z0))))
   A__SEL(s(x0), cons(x1, sel(x2, sel(z0, z1)))) -> c4(A__SEL(mark(x0), a__sel(mark(x2), a__sel(mark(z0), mark(z1)))), MARK(sel(x2, sel(z0, z1))))
   A__SEL(s(x0), cons(x1, sel(x2, cons(z0, z1)))) -> c4(A__SEL(mark(x0), a__sel(mark(x2), cons(mark(z0), z1))), MARK(sel(x2, cons(z0, z1))))
   A__SEL(s(x0), cons(x1, sel(x2, s(z0)))) -> c4(A__SEL(mark(x0), a__sel(mark(x2), s(mark(z0)))), MARK(sel(x2, s(z0))))
   A__SEL(s(x0), cons(x1, sel(x2, 0))) -> c4(A__SEL(mark(x0), a__sel(mark(x2), 0)), MARK(sel(x2, 0)))
   A__SEL(s(x0), cons(x1, sel(from(z0), x3))) -> c4(A__SEL(mark(x0), a__sel(a__from(mark(z0)), mark(x3))), MARK(sel(from(z0), x3)))
   A__SEL(s(x0), cons(x1, sel(sel(z0, z1), x3))) -> c4(A__SEL(mark(x0), a__sel(a__sel(mark(z0), mark(z1)), mark(x3))), MARK(sel(sel(z0, z1), x3)))
   A__SEL(s(x0), cons(x1, sel(cons(z0, z1), x3))) -> c4(A__SEL(mark(x0), a__sel(cons(mark(z0), z1), mark(x3))), MARK(sel(cons(z0, z1), x3)))
   A__SEL(s(x0), cons(x1, sel(s(z0), x3))) -> c4(A__SEL(mark(x0), a__sel(s(mark(z0)), mark(x3))), MARK(sel(s(z0), x3)))
   A__SEL(s(x0), cons(x1, sel(0, x3))) -> c4(A__SEL(mark(x0), a__sel(0, mark(x3))), MARK(sel(0, x3)))
   A__SEL(s(from(z0)), cons(x1, sel(x2, x3))) -> c4(A__SEL(a__from(mark(z0)), a__sel(mark(x2), mark(x3))), MARK(sel(x2, x3)))
   A__SEL(s(sel(z0, z1)), cons(x1, sel(x2, x3))) -> c4(A__SEL(a__sel(mark(z0), mark(z1)), a__sel(mark(x2), mark(x3))), MARK(sel(x2, x3)))
   A__SEL(s(s(z0)), cons(x1, sel(x2, x3))) -> c4(A__SEL(s(mark(z0)), a__sel(mark(x2), mark(x3))), MARK(sel(x2, x3)))
   A__SEL(s(0), cons(x1, sel(x2, x3))) -> c4(A__SEL(0, a__sel(mark(x2), mark(x3))), MARK(sel(x2, x3)))
   A__SEL(s(x0), cons(x1, sel(x2, x3))) -> c4(MARK(sel(x2, x3)))
   A__SEL(s(cons(z0, z1)), cons(x1, sel(x2, x3))) -> c4(MARK(sel(x2, x3)))
   A__SEL(s(x0), cons(x1, cons(from(z0), x3))) -> c4(A__SEL(mark(x0), cons(a__from(mark(z0)), x3)), MARK(cons(from(z0), x3)))
   A__SEL(s(x0), cons(x1, cons(sel(z0, z1), x3))) -> c4(A__SEL(mark(x0), cons(a__sel(mark(z0), mark(z1)), x3)), MARK(cons(sel(z0, z1), x3)))
   A__SEL(s(x0), cons(x1, cons(cons(z0, z1), x3))) -> c4(A__SEL(mark(x0), cons(cons(mark(z0), z1), x3)), MARK(cons(cons(z0, z1), x3)))
   A__SEL(s(x0), cons(x1, cons(s(z0), x3))) -> c4(A__SEL(mark(x0), cons(s(mark(z0)), x3)), MARK(cons(s(z0), x3)))
   A__SEL(s(x0), cons(x1, cons(0, x3))) -> c4(A__SEL(mark(x0), cons(0, x3)), MARK(cons(0, x3)))
   A__SEL(s(from(z0)), cons(x1, cons(x2, x3))) -> c4(A__SEL(a__from(mark(z0)), cons(mark(x2), x3)), MARK(cons(x2, x3)))
   A__SEL(s(sel(z0, z1)), cons(x1, cons(x2, x3))) -> c4(A__SEL(a__sel(mark(z0), mark(z1)), cons(mark(x2), x3)), MARK(cons(x2, x3)))
   A__SEL(s(s(z0)), cons(x1, cons(x2, x3))) -> c4(A__SEL(s(mark(z0)), cons(mark(x2), x3)), MARK(cons(x2, x3)))
   A__SEL(s(0), cons(x1, cons(x2, x3))) -> c4(A__SEL(0, cons(mark(x2), x3)), MARK(cons(x2, x3)))
   A__SEL(s(x0), cons(x1, cons(x2, x3))) -> c4(MARK(cons(x2, x3)))
   A__SEL(s(cons(z0, z1)), cons(x1, cons(x2, x3))) -> c4(MARK(cons(x2, x3)))
   A__SEL(s(from(from(z0))), cons(x1, x2)) -> c4(A__SEL(a__from(a__from(mark(z0))), mark(x2)), MARK(x2))
   A__SEL(s(from(sel(z0, z1))), cons(x1, x2)) -> c4(A__SEL(a__from(a__sel(mark(z0), mark(z1))), mark(x2)), MARK(x2))
   A__SEL(s(from(cons(z0, z1))), cons(x1, x2)) -> c4(A__SEL(a__from(cons(mark(z0), z1)), mark(x2)), MARK(x2))
   A__SEL(s(from(s(z0))), cons(x1, x2)) -> c4(A__SEL(a__from(s(mark(z0))), mark(x2)), MARK(x2))
   A__SEL(s(from(0)), cons(x1, x2)) -> c4(A__SEL(a__from(0), mark(x2)), MARK(x2))
   A__SEL(s(from(x0)), cons(x1, s(z0))) -> c4(MARK(s(z0)))
   A__SEL(s(from(x0)), cons(x1, x2)) -> c4(MARK(x2))
   A__SEL(s(sel(x0, from(z0))), cons(x2, x3)) -> c4(A__SEL(a__sel(mark(x0), a__from(mark(z0))), mark(x3)), MARK(x3))
   A__SEL(s(sel(x0, sel(z0, z1))), cons(x2, x3)) -> c4(A__SEL(a__sel(mark(x0), a__sel(mark(z0), mark(z1))), mark(x3)), MARK(x3))
   A__SEL(s(sel(x0, cons(z0, z1))), cons(x2, x3)) -> c4(A__SEL(a__sel(mark(x0), cons(mark(z0), z1)), mark(x3)), MARK(x3))
   A__SEL(s(sel(x0, s(z0))), cons(x2, x3)) -> c4(A__SEL(a__sel(mark(x0), s(mark(z0))), mark(x3)), MARK(x3))
   A__SEL(s(sel(x0, 0)), cons(x2, x3)) -> c4(A__SEL(a__sel(mark(x0), 0), mark(x3)), MARK(x3))
   A__SEL(s(sel(from(z0), x1)), cons(x2, x3)) -> c4(A__SEL(a__sel(a__from(mark(z0)), mark(x1)), mark(x3)), MARK(x3))
   A__SEL(s(sel(sel(z0, z1), x1)), cons(x2, x3)) -> c4(A__SEL(a__sel(a__sel(mark(z0), mark(z1)), mark(x1)), mark(x3)), MARK(x3))
   A__SEL(s(sel(cons(z0, z1), x1)), cons(x2, x3)) -> c4(A__SEL(a__sel(cons(mark(z0), z1), mark(x1)), mark(x3)), MARK(x3))
   A__SEL(s(sel(s(z0), x1)), cons(x2, x3)) -> c4(A__SEL(a__sel(s(mark(z0)), mark(x1)), mark(x3)), MARK(x3))
   A__SEL(s(sel(0, x1)), cons(x2, x3)) -> c4(A__SEL(a__sel(0, mark(x1)), mark(x3)), MARK(x3))
   A__SEL(s(sel(x0, x1)), cons(x2, s(z0))) -> c4(MARK(s(z0)))
   A__SEL(s(sel(x0, x1)), cons(x2, x3)) -> c4(MARK(x3))
   A__SEL(s(s(from(z0))), cons(x1, x2)) -> c4(A__SEL(s(a__from(mark(z0))), mark(x2)), MARK(x2))
   A__SEL(s(s(sel(z0, z1))), cons(x1, x2)) -> c4(A__SEL(s(a__sel(mark(z0), mark(z1))), mark(x2)), MARK(x2))
   A__SEL(s(s(cons(z0, z1))), cons(x1, x2)) -> c4(A__SEL(s(cons(mark(z0), z1)), mark(x2)), MARK(x2))
   A__SEL(s(s(s(z0))), cons(x1, x2)) -> c4(A__SEL(s(s(mark(z0))), mark(x2)), MARK(x2))
   A__SEL(s(s(0)), cons(x1, x2)) -> c4(A__SEL(s(0), mark(x2)), MARK(x2))
   A__SEL(s(s(x0)), cons(x1, s(z0))) -> c4(MARK(s(z0)))
   A__SEL(s(0), cons(x0, s(z0))) -> c4(MARK(s(z0)))
   MARK(sel(x0, from(x1))) -> c7(A__SEL(mark(x0), cons(mark(mark(x1)), from(s(mark(x1))))), MARK(x0))
   MARK(sel(x0, from(from(z0)))) -> c7(A__SEL(mark(x0), a__from(a__from(mark(z0)))), MARK(x0))
   MARK(sel(x0, from(sel(z0, z1)))) -> c7(A__SEL(mark(x0), a__from(a__sel(mark(z0), mark(z1)))), MARK(x0))
   MARK(sel(x0, from(cons(z0, z1)))) -> c7(A__SEL(mark(x0), a__from(cons(mark(z0), z1))), MARK(x0))
   MARK(sel(x0, from(s(z0)))) -> c7(A__SEL(mark(x0), a__from(s(mark(z0)))), MARK(x0))
   MARK(sel(x0, from(0))) -> c7(A__SEL(mark(x0), a__from(0)), MARK(x0))
   MARK(sel(from(z0), from(x1))) -> c7(A__SEL(a__from(mark(z0)), a__from(mark(x1))), MARK(from(z0)))
   MARK(sel(sel(z0, z1), from(x1))) -> c7(A__SEL(a__sel(mark(z0), mark(z1)), a__from(mark(x1))), MARK(sel(z0, z1)))
   MARK(sel(s(z0), from(x1))) -> c7(A__SEL(s(mark(z0)), a__from(mark(x1))), MARK(s(z0)))
   MARK(sel(x0, from(x1))) -> c7(MARK(x0))
   MARK(sel(cons(z0, z1), from(x1))) -> c7(MARK(cons(z0, z1)))
   MARK(sel(0, from(x1))) -> c7(A__SEL(0, a__from(mark(x1))))
   MARK(sel(x0, sel(x1, from(z0)))) -> c7(A__SEL(mark(x0), a__sel(mark(x1), a__from(mark(z0)))), MARK(x0))
   MARK(sel(x0, sel(x1, sel(z0, z1)))) -> c7(A__SEL(mark(x0), a__sel(mark(x1), a__sel(mark(z0), mark(z1)))), MARK(x0))
   MARK(sel(x0, sel(x1, cons(z0, z1)))) -> c7(A__SEL(mark(x0), a__sel(mark(x1), cons(mark(z0), z1))), MARK(x0))
   MARK(sel(x0, sel(x1, s(z0)))) -> c7(A__SEL(mark(x0), a__sel(mark(x1), s(mark(z0)))), MARK(x0))
   MARK(sel(x0, sel(x1, 0))) -> c7(A__SEL(mark(x0), a__sel(mark(x1), 0)), MARK(x0))
   MARK(sel(x0, sel(from(z0), x2))) -> c7(A__SEL(mark(x0), a__sel(a__from(mark(z0)), mark(x2))), MARK(x0))
   MARK(sel(x0, sel(sel(z0, z1), x2))) -> c7(A__SEL(mark(x0), a__sel(a__sel(mark(z0), mark(z1)), mark(x2))), MARK(x0))
   MARK(sel(x0, sel(cons(z0, z1), x2))) -> c7(A__SEL(mark(x0), a__sel(cons(mark(z0), z1), mark(x2))), MARK(x0))
   MARK(sel(x0, sel(s(z0), x2))) -> c7(A__SEL(mark(x0), a__sel(s(mark(z0)), mark(x2))), MARK(x0))
   MARK(sel(x0, sel(0, x2))) -> c7(A__SEL(mark(x0), a__sel(0, mark(x2))), MARK(x0))
   MARK(sel(from(z0), sel(x1, x2))) -> c7(A__SEL(a__from(mark(z0)), a__sel(mark(x1), mark(x2))), MARK(from(z0)))
   MARK(sel(sel(z0, z1), sel(x1, x2))) -> c7(A__SEL(a__sel(mark(z0), mark(z1)), a__sel(mark(x1), mark(x2))), MARK(sel(z0, z1)))
   MARK(sel(s(z0), sel(x1, x2))) -> c7(A__SEL(s(mark(z0)), a__sel(mark(x1), mark(x2))), MARK(s(z0)))
   MARK(sel(x0, sel(x1, x2))) -> c7(MARK(x0))
   MARK(sel(cons(z0, z1), sel(x1, x2))) -> c7(MARK(cons(z0, z1)))
   MARK(sel(0, sel(x1, x2))) -> c7(A__SEL(0, a__sel(mark(x1), mark(x2))))
   MARK(sel(x0, cons(from(z0), x2))) -> c7(A__SEL(mark(x0), cons(a__from(mark(z0)), x2)), MARK(x0))
   MARK(sel(x0, cons(sel(z0, z1), x2))) -> c7(A__SEL(mark(x0), cons(a__sel(mark(z0), mark(z1)), x2)), MARK(x0))
   MARK(sel(x0, cons(cons(z0, z1), x2))) -> c7(A__SEL(mark(x0), cons(cons(mark(z0), z1), x2)), MARK(x0))
   MARK(sel(x0, cons(s(z0), x2))) -> c7(A__SEL(mark(x0), cons(s(mark(z0)), x2)), MARK(x0))
   MARK(sel(x0, cons(0, x2))) -> c7(A__SEL(mark(x0), cons(0, x2)), MARK(x0))
   MARK(sel(from(z0), cons(x1, x2))) -> c7(A__SEL(a__from(mark(z0)), cons(mark(x1), x2)), MARK(from(z0)))
   MARK(sel(sel(z0, z1), cons(x1, x2))) -> c7(A__SEL(a__sel(mark(z0), mark(z1)), cons(mark(x1), x2)), MARK(sel(z0, z1)))
   MARK(sel(s(z0), cons(x1, x2))) -> c7(A__SEL(s(mark(z0)), cons(mark(x1), x2)), MARK(s(z0)))
   MARK(sel(cons(z0, z1), cons(x1, x2))) -> c7(MARK(cons(z0, z1)))
   MARK(sel(0, cons(x1, x2))) -> c7(A__SEL(0, cons(mark(x1), x2)))
   MARK(sel(from(from(z0)), x1)) -> c7(A__SEL(a__from(a__from(mark(z0))), mark(x1)), MARK(from(from(z0))))
   MARK(sel(from(sel(z0, z1)), x1)) -> c7(A__SEL(a__from(a__sel(mark(z0), mark(z1))), mark(x1)), MARK(from(sel(z0, z1))))
   MARK(sel(from(cons(z0, z1)), x1)) -> c7(A__SEL(a__from(cons(mark(z0), z1)), mark(x1)), MARK(from(cons(z0, z1))))
   MARK(sel(from(s(z0)), x1)) -> c7(A__SEL(a__from(s(mark(z0))), mark(x1)), MARK(from(s(z0))))
   MARK(sel(from(0), x1)) -> c7(A__SEL(a__from(0), mark(x1)), MARK(from(0)))
   MARK(sel(from(x0), x1)) -> c7(MARK(from(x0)))
   MARK(sel(from(x0), s(z0))) -> c7(MARK(from(x0)))
   MARK(sel(from(x0), 0)) -> c7(MARK(from(x0)))
   MARK(sel(sel(x0, from(z0)), x2)) -> c7(A__SEL(a__sel(mark(x0), a__from(mark(z0))), mark(x2)), MARK(sel(x0, from(z0))))
   MARK(sel(sel(x0, sel(z0, z1)), x2)) -> c7(A__SEL(a__sel(mark(x0), a__sel(mark(z0), mark(z1))), mark(x2)), MARK(sel(x0, sel(z0, z1))))
   MARK(sel(sel(x0, cons(z0, z1)), x2)) -> c7(A__SEL(a__sel(mark(x0), cons(mark(z0), z1)), mark(x2)), MARK(sel(x0, cons(z0, z1))))
   MARK(sel(sel(x0, s(z0)), x2)) -> c7(A__SEL(a__sel(mark(x0), s(mark(z0))), mark(x2)), MARK(sel(x0, s(z0))))
   MARK(sel(sel(x0, 0), x2)) -> c7(A__SEL(a__sel(mark(x0), 0), mark(x2)), MARK(sel(x0, 0)))
   MARK(sel(sel(from(z0), x1), x2)) -> c7(A__SEL(a__sel(a__from(mark(z0)), mark(x1)), mark(x2)), MARK(sel(from(z0), x1)))
   MARK(sel(sel(sel(z0, z1), x1), x2)) -> c7(A__SEL(a__sel(a__sel(mark(z0), mark(z1)), mark(x1)), mark(x2)), MARK(sel(sel(z0, z1), x1)))
   MARK(sel(sel(cons(z0, z1), x1), x2)) -> c7(A__SEL(a__sel(cons(mark(z0), z1), mark(x1)), mark(x2)), MARK(sel(cons(z0, z1), x1)))
   MARK(sel(sel(s(z0), x1), x2)) -> c7(A__SEL(a__sel(s(mark(z0)), mark(x1)), mark(x2)), MARK(sel(s(z0), x1)))
   MARK(sel(sel(0, x1), x2)) -> c7(A__SEL(a__sel(0, mark(x1)), mark(x2)), MARK(sel(0, x1)))
   MARK(sel(sel(x0, x1), s(z0))) -> c7(MARK(sel(x0, x1)))
   MARK(sel(sel(x0, x1), 0)) -> c7(MARK(sel(x0, x1)))
   MARK(sel(sel(x0, x1), x2)) -> c7(MARK(sel(x0, x1)))
   MARK(sel(s(from(z0)), x1)) -> c7(A__SEL(s(a__from(mark(z0))), mark(x1)), MARK(s(from(z0))))
   MARK(sel(s(sel(z0, z1)), x1)) -> c7(A__SEL(s(a__sel(mark(z0), mark(z1))), mark(x1)), MARK(s(sel(z0, z1))))
   MARK(sel(s(cons(z0, z1)), x1)) -> c7(A__SEL(s(cons(mark(z0), z1)), mark(x1)), MARK(s(cons(z0, z1))))
   MARK(sel(s(s(z0)), x1)) -> c7(A__SEL(s(s(mark(z0))), mark(x1)), MARK(s(s(z0))))
   MARK(sel(s(0), x1)) -> c7(A__SEL(s(0), mark(x1)), MARK(s(0)))
   MARK(sel(s(x0), x1)) -> c7(MARK(s(x0)))
   MARK(sel(s(x0), s(z0))) -> c7(MARK(s(x0)))
   MARK(sel(s(x0), 0)) -> c7(MARK(s(x0)))
   MARK(sel(x0, from(x1))) -> c8(A__SEL(mark(x0), cons(mark(mark(x1)), from(s(mark(x1))))), MARK(from(x1)))
   MARK(sel(x0, from(from(z0)))) -> c8(A__SEL(mark(x0), a__from(a__from(mark(z0)))), MARK(from(from(z0))))
   MARK(sel(x0, from(sel(z0, z1)))) -> c8(A__SEL(mark(x0), a__from(a__sel(mark(z0), mark(z1)))), MARK(from(sel(z0, z1))))
   MARK(sel(x0, from(cons(z0, z1)))) -> c8(A__SEL(mark(x0), a__from(cons(mark(z0), z1))), MARK(from(cons(z0, z1))))
   MARK(sel(x0, from(s(z0)))) -> c8(A__SEL(mark(x0), a__from(s(mark(z0)))), MARK(from(s(z0))))
   MARK(sel(x0, from(0))) -> c8(A__SEL(mark(x0), a__from(0)), MARK(from(0)))
   MARK(sel(from(z0), from(x1))) -> c8(A__SEL(a__from(mark(z0)), a__from(mark(x1))), MARK(from(x1)))
   MARK(sel(sel(z0, z1), from(x1))) -> c8(A__SEL(a__sel(mark(z0), mark(z1)), a__from(mark(x1))), MARK(from(x1)))
   MARK(sel(s(z0), from(x1))) -> c8(A__SEL(s(mark(z0)), a__from(mark(x1))), MARK(from(x1)))
   MARK(sel(0, from(x1))) -> c8(A__SEL(0, a__from(mark(x1))), MARK(from(x1)))
   MARK(sel(x0, from(x1))) -> c8(MARK(from(x1)))
   MARK(sel(cons(z0, z1), from(x1))) -> c8(MARK(from(x1)))
   MARK(sel(x0, sel(x1, x2))) -> c8(A__SEL(mark(x0), sel(mark(x1), mark(x2))), MARK(sel(x1, x2)))
   MARK(sel(x0, sel(x1, from(z0)))) -> c8(A__SEL(mark(x0), a__sel(mark(x1), a__from(mark(z0)))), MARK(sel(x1, from(z0))))
   MARK(sel(x0, sel(x1, sel(z0, z1)))) -> c8(A__SEL(mark(x0), a__sel(mark(x1), a__sel(mark(z0), mark(z1)))), MARK(sel(x1, sel(z0, z1))))
   MARK(sel(x0, sel(x1, cons(z0, z1)))) -> c8(A__SEL(mark(x0), a__sel(mark(x1), cons(mark(z0), z1))), MARK(sel(x1, cons(z0, z1))))
   MARK(sel(x0, sel(x1, s(z0)))) -> c8(A__SEL(mark(x0), a__sel(mark(x1), s(mark(z0)))), MARK(sel(x1, s(z0))))
   MARK(sel(x0, sel(x1, 0))) -> c8(A__SEL(mark(x0), a__sel(mark(x1), 0)), MARK(sel(x1, 0)))
   MARK(sel(x0, sel(from(z0), x2))) -> c8(A__SEL(mark(x0), a__sel(a__from(mark(z0)), mark(x2))), MARK(sel(from(z0), x2)))
   MARK(sel(x0, sel(sel(z0, z1), x2))) -> c8(A__SEL(mark(x0), a__sel(a__sel(mark(z0), mark(z1)), mark(x2))), MARK(sel(sel(z0, z1), x2)))
   MARK(sel(x0, sel(cons(z0, z1), x2))) -> c8(A__SEL(mark(x0), a__sel(cons(mark(z0), z1), mark(x2))), MARK(sel(cons(z0, z1), x2)))
   MARK(sel(x0, sel(s(z0), x2))) -> c8(A__SEL(mark(x0), a__sel(s(mark(z0)), mark(x2))), MARK(sel(s(z0), x2)))
   MARK(sel(x0, sel(0, x2))) -> c8(A__SEL(mark(x0), a__sel(0, mark(x2))), MARK(sel(0, x2)))
   MARK(sel(from(z0), sel(x1, x2))) -> c8(A__SEL(a__from(mark(z0)), a__sel(mark(x1), mark(x2))), MARK(sel(x1, x2)))
   MARK(sel(sel(z0, z1), sel(x1, x2))) -> c8(A__SEL(a__sel(mark(z0), mark(z1)), a__sel(mark(x1), mark(x2))), MARK(sel(x1, x2)))
   MARK(sel(cons(z0, z1), sel(x1, x2))) -> c8(A__SEL(cons(mark(z0), z1), a__sel(mark(x1), mark(x2))), MARK(sel(x1, x2)))
   MARK(sel(s(z0), sel(x1, x2))) -> c8(A__SEL(s(mark(z0)), a__sel(mark(x1), mark(x2))), MARK(sel(x1, x2)))
   MARK(sel(0, sel(x1, x2))) -> c8(A__SEL(0, a__sel(mark(x1), mark(x2))), MARK(sel(x1, x2)))
S tuples:
   A__FROM(z0) -> c(MARK(z0))
   A__SEL(0, cons(z0, z1)) -> c2(MARK(z0))
   MARK(from(z0)) -> c6(A__FROM(mark(z0)), MARK(z0))
   MARK(cons(z0, z1)) -> c9(MARK(z0))
   MARK(s(z0)) -> c10(MARK(z0))
   A__SEL(s(x0), cons(x1, s(z0))) -> c3(MARK(x0))
   A__SEL(s(x0), cons(x1, 0)) -> c3(MARK(x0))
   A__SEL(s(cons(z0, z1)), cons(x1, x2)) -> c3(MARK(cons(z0, z1)))
   A__SEL(s(x0), cons(x1, s(z0))) -> c4(MARK(s(z0)))
   A__SEL(s(cons(z0, z1)), cons(x1, x2)) -> c4(MARK(x2))
   MARK(sel(x0, s(z0))) -> c7(MARK(x0))
   MARK(sel(x0, 0)) -> c7(MARK(x0))
   MARK(sel(cons(z0, z1), x1)) -> c7(MARK(cons(z0, z1)))
   MARK(sel(x0, cons(z0, z1))) -> c8(A__SEL(mark(x0), cons(mark(z0), z1)), MARK(cons(z0, z1)))
   MARK(sel(from(z0), x1)) -> c8(A__SEL(a__from(mark(z0)), mark(x1)), MARK(x1))
   MARK(sel(sel(z0, z1), x1)) -> c8(A__SEL(a__sel(mark(z0), mark(z1)), mark(x1)), MARK(x1))
   MARK(sel(s(z0), x1)) -> c8(A__SEL(s(mark(z0)), mark(x1)), MARK(x1))
   MARK(sel(0, x1)) -> c8(A__SEL(0, mark(x1)), MARK(x1))
   MARK(sel(x0, s(z0))) -> c8(MARK(s(z0)))
   MARK(sel(cons(z0, z1), x1)) -> c8(MARK(x1))
   A__SEL(s(x0), cons(x1, from(x2))) -> c3(A__SEL(mark(x0), cons(mark(mark(x2)), from(s(mark(x2))))), MARK(x0))
   A__SEL(s(x0), cons(x1, from(from(z0)))) -> c3(A__SEL(mark(x0), a__from(a__from(mark(z0)))), MARK(x0))
   A__SEL(s(x0), cons(x1, from(sel(z0, z1)))) -> c3(A__SEL(mark(x0), a__from(a__sel(mark(z0), mark(z1)))), MARK(x0))
   A__SEL(s(x0), cons(x1, from(cons(z0, z1)))) -> c3(A__SEL(mark(x0), a__from(cons(mark(z0), z1))), MARK(x0))
   A__SEL(s(x0), cons(x1, from(s(z0)))) -> c3(A__SEL(mark(x0), a__from(s(mark(z0)))), MARK(x0))
   A__SEL(s(x0), cons(x1, from(0))) -> c3(A__SEL(mark(x0), a__from(0)), MARK(x0))
   A__SEL(s(from(z0)), cons(x1, from(x2))) -> c3(A__SEL(a__from(mark(z0)), a__from(mark(x2))), MARK(from(z0)))
   A__SEL(s(sel(z0, z1)), cons(x1, from(x2))) -> c3(A__SEL(a__sel(mark(z0), mark(z1)), a__from(mark(x2))), MARK(sel(z0, z1)))
   A__SEL(s(s(z0)), cons(x1, from(x2))) -> c3(A__SEL(s(mark(z0)), a__from(mark(x2))), MARK(s(z0)))
   A__SEL(s(x0), cons(x1, from(x2))) -> c3(MARK(x0))
   A__SEL(s(cons(z0, z1)), cons(x1, from(x2))) -> c3(MARK(cons(z0, z1)))
   A__SEL(s(0), cons(x1, from(x2))) -> c3(A__SEL(0, a__from(mark(x2))))
   A__SEL(s(x0), cons(x1, sel(x2, from(z0)))) -> c3(A__SEL(mark(x0), a__sel(mark(x2), a__from(mark(z0)))), MARK(x0))
   A__SEL(s(x0), cons(x1, sel(x2, sel(z0, z1)))) -> c3(A__SEL(mark(x0), a__sel(mark(x2), a__sel(mark(z0), mark(z1)))), MARK(x0))
   A__SEL(s(x0), cons(x1, sel(x2, cons(z0, z1)))) -> c3(A__SEL(mark(x0), a__sel(mark(x2), cons(mark(z0), z1))), MARK(x0))
   A__SEL(s(x0), cons(x1, sel(x2, s(z0)))) -> c3(A__SEL(mark(x0), a__sel(mark(x2), s(mark(z0)))), MARK(x0))
   A__SEL(s(x0), cons(x1, sel(x2, 0))) -> c3(A__SEL(mark(x0), a__sel(mark(x2), 0)), MARK(x0))
   A__SEL(s(x0), cons(x1, sel(from(z0), x3))) -> c3(A__SEL(mark(x0), a__sel(a__from(mark(z0)), mark(x3))), MARK(x0))
   A__SEL(s(x0), cons(x1, sel(sel(z0, z1), x3))) -> c3(A__SEL(mark(x0), a__sel(a__sel(mark(z0), mark(z1)), mark(x3))), MARK(x0))
   A__SEL(s(x0), cons(x1, sel(cons(z0, z1), x3))) -> c3(A__SEL(mark(x0), a__sel(cons(mark(z0), z1), mark(x3))), MARK(x0))
   A__SEL(s(x0), cons(x1, sel(s(z0), x3))) -> c3(A__SEL(mark(x0), a__sel(s(mark(z0)), mark(x3))), MARK(x0))
   A__SEL(s(x0), cons(x1, sel(0, x3))) -> c3(A__SEL(mark(x0), a__sel(0, mark(x3))), MARK(x0))
   A__SEL(s(from(z0)), cons(x1, sel(x2, x3))) -> c3(A__SEL(a__from(mark(z0)), a__sel(mark(x2), mark(x3))), MARK(from(z0)))
   A__SEL(s(sel(z0, z1)), cons(x1, sel(x2, x3))) -> c3(A__SEL(a__sel(mark(z0), mark(z1)), a__sel(mark(x2), mark(x3))), MARK(sel(z0, z1)))
   A__SEL(s(s(z0)), cons(x1, sel(x2, x3))) -> c3(A__SEL(s(mark(z0)), a__sel(mark(x2), mark(x3))), MARK(s(z0)))
   A__SEL(s(x0), cons(x1, sel(x2, x3))) -> c3(MARK(x0))
   A__SEL(s(cons(z0, z1)), cons(x1, sel(x2, x3))) -> c3(MARK(cons(z0, z1)))
   A__SEL(s(0), cons(x1, sel(x2, x3))) -> c3(A__SEL(0, a__sel(mark(x2), mark(x3))))
   A__SEL(s(x0), cons(x1, cons(from(z0), x3))) -> c3(A__SEL(mark(x0), cons(a__from(mark(z0)), x3)), MARK(x0))
   A__SEL(s(x0), cons(x1, cons(sel(z0, z1), x3))) -> c3(A__SEL(mark(x0), cons(a__sel(mark(z0), mark(z1)), x3)), MARK(x0))
   A__SEL(s(x0), cons(x1, cons(cons(z0, z1), x3))) -> c3(A__SEL(mark(x0), cons(cons(mark(z0), z1), x3)), MARK(x0))
   A__SEL(s(x0), cons(x1, cons(s(z0), x3))) -> c3(A__SEL(mark(x0), cons(s(mark(z0)), x3)), MARK(x0))
   A__SEL(s(x0), cons(x1, cons(0, x3))) -> c3(A__SEL(mark(x0), cons(0, x3)), MARK(x0))
   A__SEL(s(from(z0)), cons(x1, cons(x2, x3))) -> c3(A__SEL(a__from(mark(z0)), cons(mark(x2), x3)), MARK(from(z0)))
   A__SEL(s(sel(z0, z1)), cons(x1, cons(x2, x3))) -> c3(A__SEL(a__sel(mark(z0), mark(z1)), cons(mark(x2), x3)), MARK(sel(z0, z1)))
   A__SEL(s(s(z0)), cons(x1, cons(x2, x3))) -> c3(A__SEL(s(mark(z0)), cons(mark(x2), x3)), MARK(s(z0)))
   A__SEL(s(cons(z0, z1)), cons(x1, cons(x2, x3))) -> c3(MARK(cons(z0, z1)))
   A__SEL(s(0), cons(x1, cons(x2, x3))) -> c3(A__SEL(0, cons(mark(x2), x3)))
   A__SEL(s(from(from(z0))), cons(x1, x2)) -> c3(A__SEL(a__from(a__from(mark(z0))), mark(x2)), MARK(from(from(z0))))
   A__SEL(s(from(sel(z0, z1))), cons(x1, x2)) -> c3(A__SEL(a__from(a__sel(mark(z0), mark(z1))), mark(x2)), MARK(from(sel(z0, z1))))
   A__SEL(s(from(cons(z0, z1))), cons(x1, x2)) -> c3(A__SEL(a__from(cons(mark(z0), z1)), mark(x2)), MARK(from(cons(z0, z1))))
   A__SEL(s(from(s(z0))), cons(x1, x2)) -> c3(A__SEL(a__from(s(mark(z0))), mark(x2)), MARK(from(s(z0))))
   A__SEL(s(from(0)), cons(x1, x2)) -> c3(A__SEL(a__from(0), mark(x2)), MARK(from(0)))
   A__SEL(s(from(x0)), cons(x1, x2)) -> c3(MARK(from(x0)))
   A__SEL(s(from(x0)), cons(x1, s(z0))) -> c3(MARK(from(x0)))
   A__SEL(s(from(x0)), cons(x1, 0)) -> c3(MARK(from(x0)))
   A__SEL(s(sel(x0, from(z0))), cons(x2, x3)) -> c3(A__SEL(a__sel(mark(x0), a__from(mark(z0))), mark(x3)), MARK(sel(x0, from(z0))))
   A__SEL(s(sel(x0, sel(z0, z1))), cons(x2, x3)) -> c3(A__SEL(a__sel(mark(x0), a__sel(mark(z0), mark(z1))), mark(x3)), MARK(sel(x0, sel(z0, z1))))
   A__SEL(s(sel(x0, cons(z0, z1))), cons(x2, x3)) -> c3(A__SEL(a__sel(mark(x0), cons(mark(z0), z1)), mark(x3)), MARK(sel(x0, cons(z0, z1))))
   A__SEL(s(sel(x0, s(z0))), cons(x2, x3)) -> c3(A__SEL(a__sel(mark(x0), s(mark(z0))), mark(x3)), MARK(sel(x0, s(z0))))
   A__SEL(s(sel(x0, 0)), cons(x2, x3)) -> c3(A__SEL(a__sel(mark(x0), 0), mark(x3)), MARK(sel(x0, 0)))
   A__SEL(s(sel(from(z0), x1)), cons(x2, x3)) -> c3(A__SEL(a__sel(a__from(mark(z0)), mark(x1)), mark(x3)), MARK(sel(from(z0), x1)))
   A__SEL(s(sel(sel(z0, z1), x1)), cons(x2, x3)) -> c3(A__SEL(a__sel(a__sel(mark(z0), mark(z1)), mark(x1)), mark(x3)), MARK(sel(sel(z0, z1), x1)))
   A__SEL(s(sel(cons(z0, z1), x1)), cons(x2, x3)) -> c3(A__SEL(a__sel(cons(mark(z0), z1), mark(x1)), mark(x3)), MARK(sel(cons(z0, z1), x1)))
   A__SEL(s(sel(s(z0), x1)), cons(x2, x3)) -> c3(A__SEL(a__sel(s(mark(z0)), mark(x1)), mark(x3)), MARK(sel(s(z0), x1)))
   A__SEL(s(sel(0, x1)), cons(x2, x3)) -> c3(A__SEL(a__sel(0, mark(x1)), mark(x3)), MARK(sel(0, x1)))
   A__SEL(s(sel(x0, x1)), cons(x2, s(z0))) -> c3(MARK(sel(x0, x1)))
   A__SEL(s(sel(x0, x1)), cons(x2, 0)) -> c3(MARK(sel(x0, x1)))
   A__SEL(s(sel(x0, x1)), cons(x2, x3)) -> c3(MARK(sel(x0, x1)))
   A__SEL(s(s(from(z0))), cons(x1, x2)) -> c3(A__SEL(s(a__from(mark(z0))), mark(x2)), MARK(s(from(z0))))
   A__SEL(s(s(sel(z0, z1))), cons(x1, x2)) -> c3(A__SEL(s(a__sel(mark(z0), mark(z1))), mark(x2)), MARK(s(sel(z0, z1))))
   A__SEL(s(s(cons(z0, z1))), cons(x1, x2)) -> c3(A__SEL(s(cons(mark(z0), z1)), mark(x2)), MARK(s(cons(z0, z1))))
   A__SEL(s(s(s(z0))), cons(x1, x2)) -> c3(A__SEL(s(s(mark(z0))), mark(x2)), MARK(s(s(z0))))
   A__SEL(s(s(0)), cons(x1, x2)) -> c3(A__SEL(s(0), mark(x2)), MARK(s(0)))
   A__SEL(s(s(x0)), cons(x1, x2)) -> c3(MARK(s(x0)))
   A__SEL(s(s(x0)), cons(x1, s(z0))) -> c3(MARK(s(x0)))
   A__SEL(s(s(x0)), cons(x1, 0)) -> c3(MARK(s(x0)))
   A__SEL(s(x0), cons(x1, from(x2))) -> c4(A__SEL(mark(x0), cons(mark(mark(x2)), from(s(mark(x2))))), MARK(from(x2)))
   A__SEL(s(x0), cons(x1, from(from(z0)))) -> c4(A__SEL(mark(x0), a__from(a__from(mark(z0)))), MARK(from(from(z0))))
   A__SEL(s(x0), cons(x1, from(sel(z0, z1)))) -> c4(A__SEL(mark(x0), a__from(a__sel(mark(z0), mark(z1)))), MARK(from(sel(z0, z1))))
   A__SEL(s(x0), cons(x1, from(cons(z0, z1)))) -> c4(A__SEL(mark(x0), a__from(cons(mark(z0), z1))), MARK(from(cons(z0, z1))))
   A__SEL(s(x0), cons(x1, from(s(z0)))) -> c4(A__SEL(mark(x0), a__from(s(mark(z0)))), MARK(from(s(z0))))
   A__SEL(s(x0), cons(x1, from(0))) -> c4(A__SEL(mark(x0), a__from(0)), MARK(from(0)))
   A__SEL(s(from(z0)), cons(x1, from(x2))) -> c4(A__SEL(a__from(mark(z0)), a__from(mark(x2))), MARK(from(x2)))
   A__SEL(s(sel(z0, z1)), cons(x1, from(x2))) -> c4(A__SEL(a__sel(mark(z0), mark(z1)), a__from(mark(x2))), MARK(from(x2)))
   A__SEL(s(s(z0)), cons(x1, from(x2))) -> c4(A__SEL(s(mark(z0)), a__from(mark(x2))), MARK(from(x2)))
   A__SEL(s(0), cons(x1, from(x2))) -> c4(A__SEL(0, a__from(mark(x2))), MARK(from(x2)))
   A__SEL(s(x0), cons(x1, from(x2))) -> c4(MARK(from(x2)))
   A__SEL(s(cons(z0, z1)), cons(x1, from(x2))) -> c4(MARK(from(x2)))
   A__SEL(s(x0), cons(x1, sel(x2, from(z0)))) -> c4(A__SEL(mark(x0), a__sel(mark(x2), a__from(mark(z0)))), MARK(sel(x2, from(z0))))
   A__SEL(s(x0), cons(x1, sel(x2, sel(z0, z1)))) -> c4(A__SEL(mark(x0), a__sel(mark(x2), a__sel(mark(z0), mark(z1)))), MARK(sel(x2, sel(z0, z1))))
   A__SEL(s(x0), cons(x1, sel(x2, cons(z0, z1)))) -> c4(A__SEL(mark(x0), a__sel(mark(x2), cons(mark(z0), z1))), MARK(sel(x2, cons(z0, z1))))
   A__SEL(s(x0), cons(x1, sel(x2, s(z0)))) -> c4(A__SEL(mark(x0), a__sel(mark(x2), s(mark(z0)))), MARK(sel(x2, s(z0))))
   A__SEL(s(x0), cons(x1, sel(x2, 0))) -> c4(A__SEL(mark(x0), a__sel(mark(x2), 0)), MARK(sel(x2, 0)))
   A__SEL(s(x0), cons(x1, sel(from(z0), x3))) -> c4(A__SEL(mark(x0), a__sel(a__from(mark(z0)), mark(x3))), MARK(sel(from(z0), x3)))
   A__SEL(s(x0), cons(x1, sel(sel(z0, z1), x3))) -> c4(A__SEL(mark(x0), a__sel(a__sel(mark(z0), mark(z1)), mark(x3))), MARK(sel(sel(z0, z1), x3)))
   A__SEL(s(x0), cons(x1, sel(cons(z0, z1), x3))) -> c4(A__SEL(mark(x0), a__sel(cons(mark(z0), z1), mark(x3))), MARK(sel(cons(z0, z1), x3)))
   A__SEL(s(x0), cons(x1, sel(s(z0), x3))) -> c4(A__SEL(mark(x0), a__sel(s(mark(z0)), mark(x3))), MARK(sel(s(z0), x3)))
   A__SEL(s(x0), cons(x1, sel(0, x3))) -> c4(A__SEL(mark(x0), a__sel(0, mark(x3))), MARK(sel(0, x3)))
   A__SEL(s(from(z0)), cons(x1, sel(x2, x3))) -> c4(A__SEL(a__from(mark(z0)), a__sel(mark(x2), mark(x3))), MARK(sel(x2, x3)))
   A__SEL(s(sel(z0, z1)), cons(x1, sel(x2, x3))) -> c4(A__SEL(a__sel(mark(z0), mark(z1)), a__sel(mark(x2), mark(x3))), MARK(sel(x2, x3)))
   A__SEL(s(s(z0)), cons(x1, sel(x2, x3))) -> c4(A__SEL(s(mark(z0)), a__sel(mark(x2), mark(x3))), MARK(sel(x2, x3)))
   A__SEL(s(0), cons(x1, sel(x2, x3))) -> c4(A__SEL(0, a__sel(mark(x2), mark(x3))), MARK(sel(x2, x3)))
   A__SEL(s(x0), cons(x1, sel(x2, x3))) -> c4(MARK(sel(x2, x3)))
   A__SEL(s(cons(z0, z1)), cons(x1, sel(x2, x3))) -> c4(MARK(sel(x2, x3)))
   A__SEL(s(x0), cons(x1, cons(from(z0), x3))) -> c4(A__SEL(mark(x0), cons(a__from(mark(z0)), x3)), MARK(cons(from(z0), x3)))
   A__SEL(s(x0), cons(x1, cons(sel(z0, z1), x3))) -> c4(A__SEL(mark(x0), cons(a__sel(mark(z0), mark(z1)), x3)), MARK(cons(sel(z0, z1), x3)))
   A__SEL(s(x0), cons(x1, cons(cons(z0, z1), x3))) -> c4(A__SEL(mark(x0), cons(cons(mark(z0), z1), x3)), MARK(cons(cons(z0, z1), x3)))
   A__SEL(s(x0), cons(x1, cons(s(z0), x3))) -> c4(A__SEL(mark(x0), cons(s(mark(z0)), x3)), MARK(cons(s(z0), x3)))
   A__SEL(s(x0), cons(x1, cons(0, x3))) -> c4(A__SEL(mark(x0), cons(0, x3)), MARK(cons(0, x3)))
   A__SEL(s(from(z0)), cons(x1, cons(x2, x3))) -> c4(A__SEL(a__from(mark(z0)), cons(mark(x2), x3)), MARK(cons(x2, x3)))
   A__SEL(s(sel(z0, z1)), cons(x1, cons(x2, x3))) -> c4(A__SEL(a__sel(mark(z0), mark(z1)), cons(mark(x2), x3)), MARK(cons(x2, x3)))
   A__SEL(s(s(z0)), cons(x1, cons(x2, x3))) -> c4(A__SEL(s(mark(z0)), cons(mark(x2), x3)), MARK(cons(x2, x3)))
   A__SEL(s(0), cons(x1, cons(x2, x3))) -> c4(A__SEL(0, cons(mark(x2), x3)), MARK(cons(x2, x3)))
   A__SEL(s(x0), cons(x1, cons(x2, x3))) -> c4(MARK(cons(x2, x3)))
   A__SEL(s(cons(z0, z1)), cons(x1, cons(x2, x3))) -> c4(MARK(cons(x2, x3)))
   A__SEL(s(from(from(z0))), cons(x1, x2)) -> c4(A__SEL(a__from(a__from(mark(z0))), mark(x2)), MARK(x2))
   A__SEL(s(from(sel(z0, z1))), cons(x1, x2)) -> c4(A__SEL(a__from(a__sel(mark(z0), mark(z1))), mark(x2)), MARK(x2))
   A__SEL(s(from(cons(z0, z1))), cons(x1, x2)) -> c4(A__SEL(a__from(cons(mark(z0), z1)), mark(x2)), MARK(x2))
   A__SEL(s(from(s(z0))), cons(x1, x2)) -> c4(A__SEL(a__from(s(mark(z0))), mark(x2)), MARK(x2))
   A__SEL(s(from(0)), cons(x1, x2)) -> c4(A__SEL(a__from(0), mark(x2)), MARK(x2))
   A__SEL(s(from(x0)), cons(x1, s(z0))) -> c4(MARK(s(z0)))
   A__SEL(s(from(x0)), cons(x1, x2)) -> c4(MARK(x2))
   A__SEL(s(sel(x0, from(z0))), cons(x2, x3)) -> c4(A__SEL(a__sel(mark(x0), a__from(mark(z0))), mark(x3)), MARK(x3))
   A__SEL(s(sel(x0, sel(z0, z1))), cons(x2, x3)) -> c4(A__SEL(a__sel(mark(x0), a__sel(mark(z0), mark(z1))), mark(x3)), MARK(x3))
   A__SEL(s(sel(x0, cons(z0, z1))), cons(x2, x3)) -> c4(A__SEL(a__sel(mark(x0), cons(mark(z0), z1)), mark(x3)), MARK(x3))
   A__SEL(s(sel(x0, s(z0))), cons(x2, x3)) -> c4(A__SEL(a__sel(mark(x0), s(mark(z0))), mark(x3)), MARK(x3))
   A__SEL(s(sel(x0, 0)), cons(x2, x3)) -> c4(A__SEL(a__sel(mark(x0), 0), mark(x3)), MARK(x3))
   A__SEL(s(sel(from(z0), x1)), cons(x2, x3)) -> c4(A__SEL(a__sel(a__from(mark(z0)), mark(x1)), mark(x3)), MARK(x3))
   A__SEL(s(sel(sel(z0, z1), x1)), cons(x2, x3)) -> c4(A__SEL(a__sel(a__sel(mark(z0), mark(z1)), mark(x1)), mark(x3)), MARK(x3))
   A__SEL(s(sel(cons(z0, z1), x1)), cons(x2, x3)) -> c4(A__SEL(a__sel(cons(mark(z0), z1), mark(x1)), mark(x3)), MARK(x3))
   A__SEL(s(sel(s(z0), x1)), cons(x2, x3)) -> c4(A__SEL(a__sel(s(mark(z0)), mark(x1)), mark(x3)), MARK(x3))
   A__SEL(s(sel(0, x1)), cons(x2, x3)) -> c4(A__SEL(a__sel(0, mark(x1)), mark(x3)), MARK(x3))
   A__SEL(s(sel(x0, x1)), cons(x2, s(z0))) -> c4(MARK(s(z0)))
   A__SEL(s(sel(x0, x1)), cons(x2, x3)) -> c4(MARK(x3))
   A__SEL(s(s(from(z0))), cons(x1, x2)) -> c4(A__SEL(s(a__from(mark(z0))), mark(x2)), MARK(x2))
   A__SEL(s(s(sel(z0, z1))), cons(x1, x2)) -> c4(A__SEL(s(a__sel(mark(z0), mark(z1))), mark(x2)), MARK(x2))
   A__SEL(s(s(cons(z0, z1))), cons(x1, x2)) -> c4(A__SEL(s(cons(mark(z0), z1)), mark(x2)), MARK(x2))
   A__SEL(s(s(s(z0))), cons(x1, x2)) -> c4(A__SEL(s(s(mark(z0))), mark(x2)), MARK(x2))
   A__SEL(s(s(0)), cons(x1, x2)) -> c4(A__SEL(s(0), mark(x2)), MARK(x2))
   A__SEL(s(s(x0)), cons(x1, s(z0))) -> c4(MARK(s(z0)))
   A__SEL(s(0), cons(x0, s(z0))) -> c4(MARK(s(z0)))
   MARK(sel(x0, from(x1))) -> c7(A__SEL(mark(x0), cons(mark(mark(x1)), from(s(mark(x1))))), MARK(x0))
   MARK(sel(x0, from(from(z0)))) -> c7(A__SEL(mark(x0), a__from(a__from(mark(z0)))), MARK(x0))
   MARK(sel(x0, from(sel(z0, z1)))) -> c7(A__SEL(mark(x0), a__from(a__sel(mark(z0), mark(z1)))), MARK(x0))
   MARK(sel(x0, from(cons(z0, z1)))) -> c7(A__SEL(mark(x0), a__from(cons(mark(z0), z1))), MARK(x0))
   MARK(sel(x0, from(s(z0)))) -> c7(A__SEL(mark(x0), a__from(s(mark(z0)))), MARK(x0))
   MARK(sel(x0, from(0))) -> c7(A__SEL(mark(x0), a__from(0)), MARK(x0))
   MARK(sel(from(z0), from(x1))) -> c7(A__SEL(a__from(mark(z0)), a__from(mark(x1))), MARK(from(z0)))
   MARK(sel(sel(z0, z1), from(x1))) -> c7(A__SEL(a__sel(mark(z0), mark(z1)), a__from(mark(x1))), MARK(sel(z0, z1)))
   MARK(sel(s(z0), from(x1))) -> c7(A__SEL(s(mark(z0)), a__from(mark(x1))), MARK(s(z0)))
   MARK(sel(x0, from(x1))) -> c7(MARK(x0))
   MARK(sel(cons(z0, z1), from(x1))) -> c7(MARK(cons(z0, z1)))
   MARK(sel(0, from(x1))) -> c7(A__SEL(0, a__from(mark(x1))))
   MARK(sel(x0, sel(x1, from(z0)))) -> c7(A__SEL(mark(x0), a__sel(mark(x1), a__from(mark(z0)))), MARK(x0))
   MARK(sel(x0, sel(x1, sel(z0, z1)))) -> c7(A__SEL(mark(x0), a__sel(mark(x1), a__sel(mark(z0), mark(z1)))), MARK(x0))
   MARK(sel(x0, sel(x1, cons(z0, z1)))) -> c7(A__SEL(mark(x0), a__sel(mark(x1), cons(mark(z0), z1))), MARK(x0))
   MARK(sel(x0, sel(x1, s(z0)))) -> c7(A__SEL(mark(x0), a__sel(mark(x1), s(mark(z0)))), MARK(x0))
   MARK(sel(x0, sel(x1, 0))) -> c7(A__SEL(mark(x0), a__sel(mark(x1), 0)), MARK(x0))
   MARK(sel(x0, sel(from(z0), x2))) -> c7(A__SEL(mark(x0), a__sel(a__from(mark(z0)), mark(x2))), MARK(x0))
   MARK(sel(x0, sel(sel(z0, z1), x2))) -> c7(A__SEL(mark(x0), a__sel(a__sel(mark(z0), mark(z1)), mark(x2))), MARK(x0))
   MARK(sel(x0, sel(cons(z0, z1), x2))) -> c7(A__SEL(mark(x0), a__sel(cons(mark(z0), z1), mark(x2))), MARK(x0))
   MARK(sel(x0, sel(s(z0), x2))) -> c7(A__SEL(mark(x0), a__sel(s(mark(z0)), mark(x2))), MARK(x0))
   MARK(sel(x0, sel(0, x2))) -> c7(A__SEL(mark(x0), a__sel(0, mark(x2))), MARK(x0))
   MARK(sel(from(z0), sel(x1, x2))) -> c7(A__SEL(a__from(mark(z0)), a__sel(mark(x1), mark(x2))), MARK(from(z0)))
   MARK(sel(sel(z0, z1), sel(x1, x2))) -> c7(A__SEL(a__sel(mark(z0), mark(z1)), a__sel(mark(x1), mark(x2))), MARK(sel(z0, z1)))
   MARK(sel(s(z0), sel(x1, x2))) -> c7(A__SEL(s(mark(z0)), a__sel(mark(x1), mark(x2))), MARK(s(z0)))
   MARK(sel(x0, sel(x1, x2))) -> c7(MARK(x0))
   MARK(sel(cons(z0, z1), sel(x1, x2))) -> c7(MARK(cons(z0, z1)))
   MARK(sel(0, sel(x1, x2))) -> c7(A__SEL(0, a__sel(mark(x1), mark(x2))))
   MARK(sel(x0, cons(from(z0), x2))) -> c7(A__SEL(mark(x0), cons(a__from(mark(z0)), x2)), MARK(x0))
   MARK(sel(x0, cons(sel(z0, z1), x2))) -> c7(A__SEL(mark(x0), cons(a__sel(mark(z0), mark(z1)), x2)), MARK(x0))
   MARK(sel(x0, cons(cons(z0, z1), x2))) -> c7(A__SEL(mark(x0), cons(cons(mark(z0), z1), x2)), MARK(x0))
   MARK(sel(x0, cons(s(z0), x2))) -> c7(A__SEL(mark(x0), cons(s(mark(z0)), x2)), MARK(x0))
   MARK(sel(x0, cons(0, x2))) -> c7(A__SEL(mark(x0), cons(0, x2)), MARK(x0))
   MARK(sel(from(z0), cons(x1, x2))) -> c7(A__SEL(a__from(mark(z0)), cons(mark(x1), x2)), MARK(from(z0)))
   MARK(sel(sel(z0, z1), cons(x1, x2))) -> c7(A__SEL(a__sel(mark(z0), mark(z1)), cons(mark(x1), x2)), MARK(sel(z0, z1)))
   MARK(sel(s(z0), cons(x1, x2))) -> c7(A__SEL(s(mark(z0)), cons(mark(x1), x2)), MARK(s(z0)))
   MARK(sel(cons(z0, z1), cons(x1, x2))) -> c7(MARK(cons(z0, z1)))
   MARK(sel(0, cons(x1, x2))) -> c7(A__SEL(0, cons(mark(x1), x2)))
   MARK(sel(from(from(z0)), x1)) -> c7(A__SEL(a__from(a__from(mark(z0))), mark(x1)), MARK(from(from(z0))))
   MARK(sel(from(sel(z0, z1)), x1)) -> c7(A__SEL(a__from(a__sel(mark(z0), mark(z1))), mark(x1)), MARK(from(sel(z0, z1))))
   MARK(sel(from(cons(z0, z1)), x1)) -> c7(A__SEL(a__from(cons(mark(z0), z1)), mark(x1)), MARK(from(cons(z0, z1))))
   MARK(sel(from(s(z0)), x1)) -> c7(A__SEL(a__from(s(mark(z0))), mark(x1)), MARK(from(s(z0))))
   MARK(sel(from(0), x1)) -> c7(A__SEL(a__from(0), mark(x1)), MARK(from(0)))
   MARK(sel(from(x0), x1)) -> c7(MARK(from(x0)))
   MARK(sel(from(x0), s(z0))) -> c7(MARK(from(x0)))
   MARK(sel(from(x0), 0)) -> c7(MARK(from(x0)))
   MARK(sel(sel(x0, from(z0)), x2)) -> c7(A__SEL(a__sel(mark(x0), a__from(mark(z0))), mark(x2)), MARK(sel(x0, from(z0))))
   MARK(sel(sel(x0, sel(z0, z1)), x2)) -> c7(A__SEL(a__sel(mark(x0), a__sel(mark(z0), mark(z1))), mark(x2)), MARK(sel(x0, sel(z0, z1))))
   MARK(sel(sel(x0, cons(z0, z1)), x2)) -> c7(A__SEL(a__sel(mark(x0), cons(mark(z0), z1)), mark(x2)), MARK(sel(x0, cons(z0, z1))))
   MARK(sel(sel(x0, s(z0)), x2)) -> c7(A__SEL(a__sel(mark(x0), s(mark(z0))), mark(x2)), MARK(sel(x0, s(z0))))
   MARK(sel(sel(x0, 0), x2)) -> c7(A__SEL(a__sel(mark(x0), 0), mark(x2)), MARK(sel(x0, 0)))
   MARK(sel(sel(from(z0), x1), x2)) -> c7(A__SEL(a__sel(a__from(mark(z0)), mark(x1)), mark(x2)), MARK(sel(from(z0), x1)))
   MARK(sel(sel(sel(z0, z1), x1), x2)) -> c7(A__SEL(a__sel(a__sel(mark(z0), mark(z1)), mark(x1)), mark(x2)), MARK(sel(sel(z0, z1), x1)))
   MARK(sel(sel(cons(z0, z1), x1), x2)) -> c7(A__SEL(a__sel(cons(mark(z0), z1), mark(x1)), mark(x2)), MARK(sel(cons(z0, z1), x1)))
   MARK(sel(sel(s(z0), x1), x2)) -> c7(A__SEL(a__sel(s(mark(z0)), mark(x1)), mark(x2)), MARK(sel(s(z0), x1)))
   MARK(sel(sel(0, x1), x2)) -> c7(A__SEL(a__sel(0, mark(x1)), mark(x2)), MARK(sel(0, x1)))
   MARK(sel(sel(x0, x1), s(z0))) -> c7(MARK(sel(x0, x1)))
   MARK(sel(sel(x0, x1), 0)) -> c7(MARK(sel(x0, x1)))
   MARK(sel(sel(x0, x1), x2)) -> c7(MARK(sel(x0, x1)))
   MARK(sel(s(from(z0)), x1)) -> c7(A__SEL(s(a__from(mark(z0))), mark(x1)), MARK(s(from(z0))))
   MARK(sel(s(sel(z0, z1)), x1)) -> c7(A__SEL(s(a__sel(mark(z0), mark(z1))), mark(x1)), MARK(s(sel(z0, z1))))
   MARK(sel(s(cons(z0, z1)), x1)) -> c7(A__SEL(s(cons(mark(z0), z1)), mark(x1)), MARK(s(cons(z0, z1))))
   MARK(sel(s(s(z0)), x1)) -> c7(A__SEL(s(s(mark(z0))), mark(x1)), MARK(s(s(z0))))
   MARK(sel(s(0), x1)) -> c7(A__SEL(s(0), mark(x1)), MARK(s(0)))
   MARK(sel(s(x0), x1)) -> c7(MARK(s(x0)))
   MARK(sel(s(x0), s(z0))) -> c7(MARK(s(x0)))
   MARK(sel(s(x0), 0)) -> c7(MARK(s(x0)))
   MARK(sel(x0, from(x1))) -> c8(A__SEL(mark(x0), cons(mark(mark(x1)), from(s(mark(x1))))), MARK(from(x1)))
   MARK(sel(x0, from(from(z0)))) -> c8(A__SEL(mark(x0), a__from(a__from(mark(z0)))), MARK(from(from(z0))))
   MARK(sel(x0, from(sel(z0, z1)))) -> c8(A__SEL(mark(x0), a__from(a__sel(mark(z0), mark(z1)))), MARK(from(sel(z0, z1))))
   MARK(sel(x0, from(cons(z0, z1)))) -> c8(A__SEL(mark(x0), a__from(cons(mark(z0), z1))), MARK(from(cons(z0, z1))))
   MARK(sel(x0, from(s(z0)))) -> c8(A__SEL(mark(x0), a__from(s(mark(z0)))), MARK(from(s(z0))))
   MARK(sel(x0, from(0))) -> c8(A__SEL(mark(x0), a__from(0)), MARK(from(0)))
   MARK(sel(from(z0), from(x1))) -> c8(A__SEL(a__from(mark(z0)), a__from(mark(x1))), MARK(from(x1)))
   MARK(sel(sel(z0, z1), from(x1))) -> c8(A__SEL(a__sel(mark(z0), mark(z1)), a__from(mark(x1))), MARK(from(x1)))
   MARK(sel(s(z0), from(x1))) -> c8(A__SEL(s(mark(z0)), a__from(mark(x1))), MARK(from(x1)))
   MARK(sel(0, from(x1))) -> c8(A__SEL(0, a__from(mark(x1))), MARK(from(x1)))
   MARK(sel(x0, from(x1))) -> c8(MARK(from(x1)))
   MARK(sel(cons(z0, z1), from(x1))) -> c8(MARK(from(x1)))
   MARK(sel(x0, sel(x1, x2))) -> c8(A__SEL(mark(x0), sel(mark(x1), mark(x2))), MARK(sel(x1, x2)))
   MARK(sel(x0, sel(x1, from(z0)))) -> c8(A__SEL(mark(x0), a__sel(mark(x1), a__from(mark(z0)))), MARK(sel(x1, from(z0))))
   MARK(sel(x0, sel(x1, sel(z0, z1)))) -> c8(A__SEL(mark(x0), a__sel(mark(x1), a__sel(mark(z0), mark(z1)))), MARK(sel(x1, sel(z0, z1))))
   MARK(sel(x0, sel(x1, cons(z0, z1)))) -> c8(A__SEL(mark(x0), a__sel(mark(x1), cons(mark(z0), z1))), MARK(sel(x1, cons(z0, z1))))
   MARK(sel(x0, sel(x1, s(z0)))) -> c8(A__SEL(mark(x0), a__sel(mark(x1), s(mark(z0)))), MARK(sel(x1, s(z0))))
   MARK(sel(x0, sel(x1, 0))) -> c8(A__SEL(mark(x0), a__sel(mark(x1), 0)), MARK(sel(x1, 0)))
   MARK(sel(x0, sel(from(z0), x2))) -> c8(A__SEL(mark(x0), a__sel(a__from(mark(z0)), mark(x2))), MARK(sel(from(z0), x2)))
   MARK(sel(x0, sel(sel(z0, z1), x2))) -> c8(A__SEL(mark(x0), a__sel(a__sel(mark(z0), mark(z1)), mark(x2))), MARK(sel(sel(z0, z1), x2)))
   MARK(sel(x0, sel(cons(z0, z1), x2))) -> c8(A__SEL(mark(x0), a__sel(cons(mark(z0), z1), mark(x2))), MARK(sel(cons(z0, z1), x2)))
   MARK(sel(x0, sel(s(z0), x2))) -> c8(A__SEL(mark(x0), a__sel(s(mark(z0)), mark(x2))), MARK(sel(s(z0), x2)))
   MARK(sel(x0, sel(0, x2))) -> c8(A__SEL(mark(x0), a__sel(0, mark(x2))), MARK(sel(0, x2)))
   MARK(sel(from(z0), sel(x1, x2))) -> c8(A__SEL(a__from(mark(z0)), a__sel(mark(x1), mark(x2))), MARK(sel(x1, x2)))
   MARK(sel(sel(z0, z1), sel(x1, x2))) -> c8(A__SEL(a__sel(mark(z0), mark(z1)), a__sel(mark(x1), mark(x2))), MARK(sel(x1, x2)))
   MARK(sel(cons(z0, z1), sel(x1, x2))) -> c8(A__SEL(cons(mark(z0), z1), a__sel(mark(x1), mark(x2))), MARK(sel(x1, x2)))
   MARK(sel(s(z0), sel(x1, x2))) -> c8(A__SEL(s(mark(z0)), a__sel(mark(x1), mark(x2))), MARK(sel(x1, x2)))
   MARK(sel(0, sel(x1, x2))) -> c8(A__SEL(0, a__sel(mark(x1), mark(x2))), MARK(sel(x1, x2)))
K tuples:none
Defined Rule Symbols:   a__from_1, a__sel_2, mark_1

Defined Pair Symbols:   A__FROM_1, A__SEL_2, MARK_1

Compound Symbols:   c_1, c2_1, c6_2, c9_1, c10_1, c3_1, c4_1, c7_1, c8_2, c8_1, c3_2, c4_2, c7_2


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

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

(176)
Obligation:
Complexity Dependency Tuples Problem

Rules:
   a__from(z0) -> cons(mark(z0), from(s(z0)))
   a__from(z0) -> from(z0)
   a__sel(0, cons(z0, z1)) -> mark(z0)
   a__sel(s(z0), cons(z1, z2)) -> a__sel(mark(z0), mark(z2))
   a__sel(z0, z1) -> sel(z0, z1)
   mark(from(z0)) -> a__from(mark(z0))
   mark(sel(z0, z1)) -> a__sel(mark(z0), mark(z1))
   mark(cons(z0, z1)) -> cons(mark(z0), z1)
   mark(s(z0)) -> s(mark(z0))
   mark(0) -> 0
Tuples:
   A__FROM(z0) -> c(MARK(z0))
   A__SEL(0, cons(z0, z1)) -> c2(MARK(z0))
   MARK(from(z0)) -> c6(A__FROM(mark(z0)), MARK(z0))
   MARK(cons(z0, z1)) -> c9(MARK(z0))
   MARK(s(z0)) -> c10(MARK(z0))
   A__SEL(s(x0), cons(x1, s(z0))) -> c3(MARK(x0))
   A__SEL(s(x0), cons(x1, 0)) -> c3(MARK(x0))
   A__SEL(s(cons(z0, z1)), cons(x1, x2)) -> c3(MARK(cons(z0, z1)))
   A__SEL(s(x0), cons(x1, s(z0))) -> c4(MARK(s(z0)))
   A__SEL(s(cons(z0, z1)), cons(x1, x2)) -> c4(MARK(x2))
   MARK(sel(x0, s(z0))) -> c7(MARK(x0))
   MARK(sel(x0, 0)) -> c7(MARK(x0))
   MARK(sel(cons(z0, z1), x1)) -> c7(MARK(cons(z0, z1)))
   MARK(sel(x0, cons(z0, z1))) -> c8(A__SEL(mark(x0), cons(mark(z0), z1)), MARK(cons(z0, z1)))
   MARK(sel(from(z0), x1)) -> c8(A__SEL(a__from(mark(z0)), mark(x1)), MARK(x1))
   MARK(sel(sel(z0, z1), x1)) -> c8(A__SEL(a__sel(mark(z0), mark(z1)), mark(x1)), MARK(x1))
   MARK(sel(s(z0), x1)) -> c8(A__SEL(s(mark(z0)), mark(x1)), MARK(x1))
   MARK(sel(0, x1)) -> c8(A__SEL(0, mark(x1)), MARK(x1))
   MARK(sel(x0, s(z0))) -> c8(MARK(s(z0)))
   MARK(sel(cons(z0, z1), x1)) -> c8(MARK(x1))
   A__SEL(s(x0), cons(x1, from(x2))) -> c3(A__SEL(mark(x0), cons(mark(mark(x2)), from(s(mark(x2))))), MARK(x0))
   A__SEL(s(x0), cons(x1, from(from(z0)))) -> c3(A__SEL(mark(x0), a__from(a__from(mark(z0)))), MARK(x0))
   A__SEL(s(x0), cons(x1, from(sel(z0, z1)))) -> c3(A__SEL(mark(x0), a__from(a__sel(mark(z0), mark(z1)))), MARK(x0))
   A__SEL(s(x0), cons(x1, from(cons(z0, z1)))) -> c3(A__SEL(mark(x0), a__from(cons(mark(z0), z1))), MARK(x0))
   A__SEL(s(x0), cons(x1, from(s(z0)))) -> c3(A__SEL(mark(x0), a__from(s(mark(z0)))), MARK(x0))
   A__SEL(s(x0), cons(x1, from(0))) -> c3(A__SEL(mark(x0), a__from(0)), MARK(x0))
   A__SEL(s(from(z0)), cons(x1, from(x2))) -> c3(A__SEL(a__from(mark(z0)), a__from(mark(x2))), MARK(from(z0)))
   A__SEL(s(sel(z0, z1)), cons(x1, from(x2))) -> c3(A__SEL(a__sel(mark(z0), mark(z1)), a__from(mark(x2))), MARK(sel(z0, z1)))
   A__SEL(s(s(z0)), cons(x1, from(x2))) -> c3(A__SEL(s(mark(z0)), a__from(mark(x2))), MARK(s(z0)))
   A__SEL(s(x0), cons(x1, from(x2))) -> c3(MARK(x0))
   A__SEL(s(cons(z0, z1)), cons(x1, from(x2))) -> c3(MARK(cons(z0, z1)))
   A__SEL(s(0), cons(x1, from(x2))) -> c3(A__SEL(0, a__from(mark(x2))))
   A__SEL(s(x0), cons(x1, sel(x2, from(z0)))) -> c3(A__SEL(mark(x0), a__sel(mark(x2), a__from(mark(z0)))), MARK(x0))
   A__SEL(s(x0), cons(x1, sel(x2, sel(z0, z1)))) -> c3(A__SEL(mark(x0), a__sel(mark(x2), a__sel(mark(z0), mark(z1)))), MARK(x0))
   A__SEL(s(x0), cons(x1, sel(x2, cons(z0, z1)))) -> c3(A__SEL(mark(x0), a__sel(mark(x2), cons(mark(z0), z1))), MARK(x0))
   A__SEL(s(x0), cons(x1, sel(x2, s(z0)))) -> c3(A__SEL(mark(x0), a__sel(mark(x2), s(mark(z0)))), MARK(x0))
   A__SEL(s(x0), cons(x1, sel(x2, 0))) -> c3(A__SEL(mark(x0), a__sel(mark(x2), 0)), MARK(x0))
   A__SEL(s(x0), cons(x1, sel(from(z0), x3))) -> c3(A__SEL(mark(x0), a__sel(a__from(mark(z0)), mark(x3))), MARK(x0))
   A__SEL(s(x0), cons(x1, sel(sel(z0, z1), x3))) -> c3(A__SEL(mark(x0), a__sel(a__sel(mark(z0), mark(z1)), mark(x3))), MARK(x0))
   A__SEL(s(x0), cons(x1, sel(cons(z0, z1), x3))) -> c3(A__SEL(mark(x0), a__sel(cons(mark(z0), z1), mark(x3))), MARK(x0))
   A__SEL(s(x0), cons(x1, sel(s(z0), x3))) -> c3(A__SEL(mark(x0), a__sel(s(mark(z0)), mark(x3))), MARK(x0))
   A__SEL(s(x0), cons(x1, sel(0, x3))) -> c3(A__SEL(mark(x0), a__sel(0, mark(x3))), MARK(x0))
   A__SEL(s(from(z0)), cons(x1, sel(x2, x3))) -> c3(A__SEL(a__from(mark(z0)), a__sel(mark(x2), mark(x3))), MARK(from(z0)))
   A__SEL(s(sel(z0, z1)), cons(x1, sel(x2, x3))) -> c3(A__SEL(a__sel(mark(z0), mark(z1)), a__sel(mark(x2), mark(x3))), MARK(sel(z0, z1)))
   A__SEL(s(s(z0)), cons(x1, sel(x2, x3))) -> c3(A__SEL(s(mark(z0)), a__sel(mark(x2), mark(x3))), MARK(s(z0)))
   A__SEL(s(x0), cons(x1, sel(x2, x3))) -> c3(MARK(x0))
   A__SEL(s(cons(z0, z1)), cons(x1, sel(x2, x3))) -> c3(MARK(cons(z0, z1)))
   A__SEL(s(0), cons(x1, sel(x2, x3))) -> c3(A__SEL(0, a__sel(mark(x2), mark(x3))))
   A__SEL(s(x0), cons(x1, cons(from(z0), x3))) -> c3(A__SEL(mark(x0), cons(a__from(mark(z0)), x3)), MARK(x0))
   A__SEL(s(x0), cons(x1, cons(sel(z0, z1), x3))) -> c3(A__SEL(mark(x0), cons(a__sel(mark(z0), mark(z1)), x3)), MARK(x0))
   A__SEL(s(x0), cons(x1, cons(cons(z0, z1), x3))) -> c3(A__SEL(mark(x0), cons(cons(mark(z0), z1), x3)), MARK(x0))
   A__SEL(s(x0), cons(x1, cons(s(z0), x3))) -> c3(A__SEL(mark(x0), cons(s(mark(z0)), x3)), MARK(x0))
   A__SEL(s(x0), cons(x1, cons(0, x3))) -> c3(A__SEL(mark(x0), cons(0, x3)), MARK(x0))
   A__SEL(s(from(z0)), cons(x1, cons(x2, x3))) -> c3(A__SEL(a__from(mark(z0)), cons(mark(x2), x3)), MARK(from(z0)))
   A__SEL(s(sel(z0, z1)), cons(x1, cons(x2, x3))) -> c3(A__SEL(a__sel(mark(z0), mark(z1)), cons(mark(x2), x3)), MARK(sel(z0, z1)))
   A__SEL(s(s(z0)), cons(x1, cons(x2, x3))) -> c3(A__SEL(s(mark(z0)), cons(mark(x2), x3)), MARK(s(z0)))
   A__SEL(s(cons(z0, z1)), cons(x1, cons(x2, x3))) -> c3(MARK(cons(z0, z1)))
   A__SEL(s(0), cons(x1, cons(x2, x3))) -> c3(A__SEL(0, cons(mark(x2), x3)))
   A__SEL(s(from(from(z0))), cons(x1, x2)) -> c3(A__SEL(a__from(a__from(mark(z0))), mark(x2)), MARK(from(from(z0))))
   A__SEL(s(from(sel(z0, z1))), cons(x1, x2)) -> c3(A__SEL(a__from(a__sel(mark(z0), mark(z1))), mark(x2)), MARK(from(sel(z0, z1))))
   A__SEL(s(from(cons(z0, z1))), cons(x1, x2)) -> c3(A__SEL(a__from(cons(mark(z0), z1)), mark(x2)), MARK(from(cons(z0, z1))))
   A__SEL(s(from(s(z0))), cons(x1, x2)) -> c3(A__SEL(a__from(s(mark(z0))), mark(x2)), MARK(from(s(z0))))
   A__SEL(s(from(0)), cons(x1, x2)) -> c3(A__SEL(a__from(0), mark(x2)), MARK(from(0)))
   A__SEL(s(from(x0)), cons(x1, x2)) -> c3(MARK(from(x0)))
   A__SEL(s(from(x0)), cons(x1, s(z0))) -> c3(MARK(from(x0)))
   A__SEL(s(from(x0)), cons(x1, 0)) -> c3(MARK(from(x0)))
   A__SEL(s(sel(x0, from(z0))), cons(x2, x3)) -> c3(A__SEL(a__sel(mark(x0), a__from(mark(z0))), mark(x3)), MARK(sel(x0, from(z0))))
   A__SEL(s(sel(x0, sel(z0, z1))), cons(x2, x3)) -> c3(A__SEL(a__sel(mark(x0), a__sel(mark(z0), mark(z1))), mark(x3)), MARK(sel(x0, sel(z0, z1))))
   A__SEL(s(sel(x0, cons(z0, z1))), cons(x2, x3)) -> c3(A__SEL(a__sel(mark(x0), cons(mark(z0), z1)), mark(x3)), MARK(sel(x0, cons(z0, z1))))
   A__SEL(s(sel(x0, s(z0))), cons(x2, x3)) -> c3(A__SEL(a__sel(mark(x0), s(mark(z0))), mark(x3)), MARK(sel(x0, s(z0))))
   A__SEL(s(sel(x0, 0)), cons(x2, x3)) -> c3(A__SEL(a__sel(mark(x0), 0), mark(x3)), MARK(sel(x0, 0)))
   A__SEL(s(sel(from(z0), x1)), cons(x2, x3)) -> c3(A__SEL(a__sel(a__from(mark(z0)), mark(x1)), mark(x3)), MARK(sel(from(z0), x1)))
   A__SEL(s(sel(sel(z0, z1), x1)), cons(x2, x3)) -> c3(A__SEL(a__sel(a__sel(mark(z0), mark(z1)), mark(x1)), mark(x3)), MARK(sel(sel(z0, z1), x1)))
   A__SEL(s(sel(cons(z0, z1), x1)), cons(x2, x3)) -> c3(A__SEL(a__sel(cons(mark(z0), z1), mark(x1)), mark(x3)), MARK(sel(cons(z0, z1), x1)))
   A__SEL(s(sel(s(z0), x1)), cons(x2, x3)) -> c3(A__SEL(a__sel(s(mark(z0)), mark(x1)), mark(x3)), MARK(sel(s(z0), x1)))
   A__SEL(s(sel(0, x1)), cons(x2, x3)) -> c3(A__SEL(a__sel(0, mark(x1)), mark(x3)), MARK(sel(0, x1)))
   A__SEL(s(sel(x0, x1)), cons(x2, s(z0))) -> c3(MARK(sel(x0, x1)))
   A__SEL(s(sel(x0, x1)), cons(x2, 0)) -> c3(MARK(sel(x0, x1)))
   A__SEL(s(sel(x0, x1)), cons(x2, x3)) -> c3(MARK(sel(x0, x1)))
   A__SEL(s(s(from(z0))), cons(x1, x2)) -> c3(A__SEL(s(a__from(mark(z0))), mark(x2)), MARK(s(from(z0))))
   A__SEL(s(s(sel(z0, z1))), cons(x1, x2)) -> c3(A__SEL(s(a__sel(mark(z0), mark(z1))), mark(x2)), MARK(s(sel(z0, z1))))
   A__SEL(s(s(cons(z0, z1))), cons(x1, x2)) -> c3(A__SEL(s(cons(mark(z0), z1)), mark(x2)), MARK(s(cons(z0, z1))))
   A__SEL(s(s(s(z0))), cons(x1, x2)) -> c3(A__SEL(s(s(mark(z0))), mark(x2)), MARK(s(s(z0))))
   A__SEL(s(s(0)), cons(x1, x2)) -> c3(A__SEL(s(0), mark(x2)), MARK(s(0)))
   A__SEL(s(s(x0)), cons(x1, x2)) -> c3(MARK(s(x0)))
   A__SEL(s(s(x0)), cons(x1, s(z0))) -> c3(MARK(s(x0)))
   A__SEL(s(s(x0)), cons(x1, 0)) -> c3(MARK(s(x0)))
   A__SEL(s(x0), cons(x1, from(x2))) -> c4(A__SEL(mark(x0), cons(mark(mark(x2)), from(s(mark(x2))))), MARK(from(x2)))
   A__SEL(s(x0), cons(x1, from(from(z0)))) -> c4(A__SEL(mark(x0), a__from(a__from(mark(z0)))), MARK(from(from(z0))))
   A__SEL(s(x0), cons(x1, from(sel(z0, z1)))) -> c4(A__SEL(mark(x0), a__from(a__sel(mark(z0), mark(z1)))), MARK(from(sel(z0, z1))))
   A__SEL(s(x0), cons(x1, from(cons(z0, z1)))) -> c4(A__SEL(mark(x0), a__from(cons(mark(z0), z1))), MARK(from(cons(z0, z1))))
   A__SEL(s(x0), cons(x1, from(s(z0)))) -> c4(A__SEL(mark(x0), a__from(s(mark(z0)))), MARK(from(s(z0))))
   A__SEL(s(x0), cons(x1, from(0))) -> c4(A__SEL(mark(x0), a__from(0)), MARK(from(0)))
   A__SEL(s(from(z0)), cons(x1, from(x2))) -> c4(A__SEL(a__from(mark(z0)), a__from(mark(x2))), MARK(from(x2)))
   A__SEL(s(sel(z0, z1)), cons(x1, from(x2))) -> c4(A__SEL(a__sel(mark(z0), mark(z1)), a__from(mark(x2))), MARK(from(x2)))
   A__SEL(s(s(z0)), cons(x1, from(x2))) -> c4(A__SEL(s(mark(z0)), a__from(mark(x2))), MARK(from(x2)))
   A__SEL(s(0), cons(x1, from(x2))) -> c4(A__SEL(0, a__from(mark(x2))), MARK(from(x2)))
   A__SEL(s(x0), cons(x1, from(x2))) -> c4(MARK(from(x2)))
   A__SEL(s(cons(z0, z1)), cons(x1, from(x2))) -> c4(MARK(from(x2)))
   A__SEL(s(x0), cons(x1, sel(x2, from(z0)))) -> c4(A__SEL(mark(x0), a__sel(mark(x2), a__from(mark(z0)))), MARK(sel(x2, from(z0))))
   A__SEL(s(x0), cons(x1, sel(x2, sel(z0, z1)))) -> c4(A__SEL(mark(x0), a__sel(mark(x2), a__sel(mark(z0), mark(z1)))), MARK(sel(x2, sel(z0, z1))))
   A__SEL(s(x0), cons(x1, sel(x2, cons(z0, z1)))) -> c4(A__SEL(mark(x0), a__sel(mark(x2), cons(mark(z0), z1))), MARK(sel(x2, cons(z0, z1))))
   A__SEL(s(x0), cons(x1, sel(x2, s(z0)))) -> c4(A__SEL(mark(x0), a__sel(mark(x2), s(mark(z0)))), MARK(sel(x2, s(z0))))
   A__SEL(s(x0), cons(x1, sel(x2, 0))) -> c4(A__SEL(mark(x0), a__sel(mark(x2), 0)), MARK(sel(x2, 0)))
   A__SEL(s(x0), cons(x1, sel(from(z0), x3))) -> c4(A__SEL(mark(x0), a__sel(a__from(mark(z0)), mark(x3))), MARK(sel(from(z0), x3)))
   A__SEL(s(x0), cons(x1, sel(sel(z0, z1), x3))) -> c4(A__SEL(mark(x0), a__sel(a__sel(mark(z0), mark(z1)), mark(x3))), MARK(sel(sel(z0, z1), x3)))
   A__SEL(s(x0), cons(x1, sel(cons(z0, z1), x3))) -> c4(A__SEL(mark(x0), a__sel(cons(mark(z0), z1), mark(x3))), MARK(sel(cons(z0, z1), x3)))
   A__SEL(s(x0), cons(x1, sel(s(z0), x3))) -> c4(A__SEL(mark(x0), a__sel(s(mark(z0)), mark(x3))), MARK(sel(s(z0), x3)))
   A__SEL(s(x0), cons(x1, sel(0, x3))) -> c4(A__SEL(mark(x0), a__sel(0, mark(x3))), MARK(sel(0, x3)))
   A__SEL(s(from(z0)), cons(x1, sel(x2, x3))) -> c4(A__SEL(a__from(mark(z0)), a__sel(mark(x2), mark(x3))), MARK(sel(x2, x3)))
   A__SEL(s(sel(z0, z1)), cons(x1, sel(x2, x3))) -> c4(A__SEL(a__sel(mark(z0), mark(z1)), a__sel(mark(x2), mark(x3))), MARK(sel(x2, x3)))
   A__SEL(s(s(z0)), cons(x1, sel(x2, x3))) -> c4(A__SEL(s(mark(z0)), a__sel(mark(x2), mark(x3))), MARK(sel(x2, x3)))
   A__SEL(s(0), cons(x1, sel(x2, x3))) -> c4(A__SEL(0, a__sel(mark(x2), mark(x3))), MARK(sel(x2, x3)))
   A__SEL(s(x0), cons(x1, sel(x2, x3))) -> c4(MARK(sel(x2, x3)))
   A__SEL(s(cons(z0, z1)), cons(x1, sel(x2, x3))) -> c4(MARK(sel(x2, x3)))
   A__SEL(s(x0), cons(x1, cons(from(z0), x3))) -> c4(A__SEL(mark(x0), cons(a__from(mark(z0)), x3)), MARK(cons(from(z0), x3)))
   A__SEL(s(x0), cons(x1, cons(sel(z0, z1), x3))) -> c4(A__SEL(mark(x0), cons(a__sel(mark(z0), mark(z1)), x3)), MARK(cons(sel(z0, z1), x3)))
   A__SEL(s(x0), cons(x1, cons(cons(z0, z1), x3))) -> c4(A__SEL(mark(x0), cons(cons(mark(z0), z1), x3)), MARK(cons(cons(z0, z1), x3)))
   A__SEL(s(x0), cons(x1, cons(s(z0), x3))) -> c4(A__SEL(mark(x0), cons(s(mark(z0)), x3)), MARK(cons(s(z0), x3)))
   A__SEL(s(x0), cons(x1, cons(0, x3))) -> c4(A__SEL(mark(x0), cons(0, x3)), MARK(cons(0, x3)))
   A__SEL(s(from(z0)), cons(x1, cons(x2, x3))) -> c4(A__SEL(a__from(mark(z0)), cons(mark(x2), x3)), MARK(cons(x2, x3)))
   A__SEL(s(sel(z0, z1)), cons(x1, cons(x2, x3))) -> c4(A__SEL(a__sel(mark(z0), mark(z1)), cons(mark(x2), x3)), MARK(cons(x2, x3)))
   A__SEL(s(s(z0)), cons(x1, cons(x2, x3))) -> c4(A__SEL(s(mark(z0)), cons(mark(x2), x3)), MARK(cons(x2, x3)))
   A__SEL(s(0), cons(x1, cons(x2, x3))) -> c4(A__SEL(0, cons(mark(x2), x3)), MARK(cons(x2, x3)))
   A__SEL(s(x0), cons(x1, cons(x2, x3))) -> c4(MARK(cons(x2, x3)))
   A__SEL(s(cons(z0, z1)), cons(x1, cons(x2, x3))) -> c4(MARK(cons(x2, x3)))
   A__SEL(s(from(from(z0))), cons(x1, x2)) -> c4(A__SEL(a__from(a__from(mark(z0))), mark(x2)), MARK(x2))
   A__SEL(s(from(sel(z0, z1))), cons(x1, x2)) -> c4(A__SEL(a__from(a__sel(mark(z0), mark(z1))), mark(x2)), MARK(x2))
   A__SEL(s(from(cons(z0, z1))), cons(x1, x2)) -> c4(A__SEL(a__from(cons(mark(z0), z1)), mark(x2)), MARK(x2))
   A__SEL(s(from(s(z0))), cons(x1, x2)) -> c4(A__SEL(a__from(s(mark(z0))), mark(x2)), MARK(x2))
   A__SEL(s(from(0)), cons(x1, x2)) -> c4(A__SEL(a__from(0), mark(x2)), MARK(x2))
   A__SEL(s(from(x0)), cons(x1, s(z0))) -> c4(MARK(s(z0)))
   A__SEL(s(from(x0)), cons(x1, x2)) -> c4(MARK(x2))
   A__SEL(s(sel(x0, from(z0))), cons(x2, x3)) -> c4(A__SEL(a__sel(mark(x0), a__from(mark(z0))), mark(x3)), MARK(x3))
   A__SEL(s(sel(x0, sel(z0, z1))), cons(x2, x3)) -> c4(A__SEL(a__sel(mark(x0), a__sel(mark(z0), mark(z1))), mark(x3)), MARK(x3))
   A__SEL(s(sel(x0, cons(z0, z1))), cons(x2, x3)) -> c4(A__SEL(a__sel(mark(x0), cons(mark(z0), z1)), mark(x3)), MARK(x3))
   A__SEL(s(sel(x0, s(z0))), cons(x2, x3)) -> c4(A__SEL(a__sel(mark(x0), s(mark(z0))), mark(x3)), MARK(x3))
   A__SEL(s(sel(x0, 0)), cons(x2, x3)) -> c4(A__SEL(a__sel(mark(x0), 0), mark(x3)), MARK(x3))
   A__SEL(s(sel(from(z0), x1)), cons(x2, x3)) -> c4(A__SEL(a__sel(a__from(mark(z0)), mark(x1)), mark(x3)), MARK(x3))
   A__SEL(s(sel(sel(z0, z1), x1)), cons(x2, x3)) -> c4(A__SEL(a__sel(a__sel(mark(z0), mark(z1)), mark(x1)), mark(x3)), MARK(x3))
   A__SEL(s(sel(cons(z0, z1), x1)), cons(x2, x3)) -> c4(A__SEL(a__sel(cons(mark(z0), z1), mark(x1)), mark(x3)), MARK(x3))
   A__SEL(s(sel(s(z0), x1)), cons(x2, x3)) -> c4(A__SEL(a__sel(s(mark(z0)), mark(x1)), mark(x3)), MARK(x3))
   A__SEL(s(sel(0, x1)), cons(x2, x3)) -> c4(A__SEL(a__sel(0, mark(x1)), mark(x3)), MARK(x3))
   A__SEL(s(sel(x0, x1)), cons(x2, s(z0))) -> c4(MARK(s(z0)))
   A__SEL(s(sel(x0, x1)), cons(x2, x3)) -> c4(MARK(x3))
   A__SEL(s(s(from(z0))), cons(x1, x2)) -> c4(A__SEL(s(a__from(mark(z0))), mark(x2)), MARK(x2))
   A__SEL(s(s(sel(z0, z1))), cons(x1, x2)) -> c4(A__SEL(s(a__sel(mark(z0), mark(z1))), mark(x2)), MARK(x2))
   A__SEL(s(s(cons(z0, z1))), cons(x1, x2)) -> c4(A__SEL(s(cons(mark(z0), z1)), mark(x2)), MARK(x2))
   A__SEL(s(s(s(z0))), cons(x1, x2)) -> c4(A__SEL(s(s(mark(z0))), mark(x2)), MARK(x2))
   A__SEL(s(s(0)), cons(x1, x2)) -> c4(A__SEL(s(0), mark(x2)), MARK(x2))
   A__SEL(s(s(x0)), cons(x1, s(z0))) -> c4(MARK(s(z0)))
   A__SEL(s(0), cons(x0, s(z0))) -> c4(MARK(s(z0)))
   MARK(sel(x0, from(x1))) -> c7(A__SEL(mark(x0), cons(mark(mark(x1)), from(s(mark(x1))))), MARK(x0))
   MARK(sel(x0, from(from(z0)))) -> c7(A__SEL(mark(x0), a__from(a__from(mark(z0)))), MARK(x0))
   MARK(sel(x0, from(sel(z0, z1)))) -> c7(A__SEL(mark(x0), a__from(a__sel(mark(z0), mark(z1)))), MARK(x0))
   MARK(sel(x0, from(cons(z0, z1)))) -> c7(A__SEL(mark(x0), a__from(cons(mark(z0), z1))), MARK(x0))
   MARK(sel(x0, from(s(z0)))) -> c7(A__SEL(mark(x0), a__from(s(mark(z0)))), MARK(x0))
   MARK(sel(x0, from(0))) -> c7(A__SEL(mark(x0), a__from(0)), MARK(x0))
   MARK(sel(from(z0), from(x1))) -> c7(A__SEL(a__from(mark(z0)), a__from(mark(x1))), MARK(from(z0)))
   MARK(sel(sel(z0, z1), from(x1))) -> c7(A__SEL(a__sel(mark(z0), mark(z1)), a__from(mark(x1))), MARK(sel(z0, z1)))
   MARK(sel(s(z0), from(x1))) -> c7(A__SEL(s(mark(z0)), a__from(mark(x1))), MARK(s(z0)))
   MARK(sel(x0, from(x1))) -> c7(MARK(x0))
   MARK(sel(cons(z0, z1), from(x1))) -> c7(MARK(cons(z0, z1)))
   MARK(sel(0, from(x1))) -> c7(A__SEL(0, a__from(mark(x1))))
   MARK(sel(x0, sel(x1, from(z0)))) -> c7(A__SEL(mark(x0), a__sel(mark(x1), a__from(mark(z0)))), MARK(x0))
   MARK(sel(x0, sel(x1, sel(z0, z1)))) -> c7(A__SEL(mark(x0), a__sel(mark(x1), a__sel(mark(z0), mark(z1)))), MARK(x0))
   MARK(sel(x0, sel(x1, cons(z0, z1)))) -> c7(A__SEL(mark(x0), a__sel(mark(x1), cons(mark(z0), z1))), MARK(x0))
   MARK(sel(x0, sel(x1, s(z0)))) -> c7(A__SEL(mark(x0), a__sel(mark(x1), s(mark(z0)))), MARK(x0))
   MARK(sel(x0, sel(x1, 0))) -> c7(A__SEL(mark(x0), a__sel(mark(x1), 0)), MARK(x0))
   MARK(sel(x0, sel(from(z0), x2))) -> c7(A__SEL(mark(x0), a__sel(a__from(mark(z0)), mark(x2))), MARK(x0))
   MARK(sel(x0, sel(sel(z0, z1), x2))) -> c7(A__SEL(mark(x0), a__sel(a__sel(mark(z0), mark(z1)), mark(x2))), MARK(x0))
   MARK(sel(x0, sel(cons(z0, z1), x2))) -> c7(A__SEL(mark(x0), a__sel(cons(mark(z0), z1), mark(x2))), MARK(x0))
   MARK(sel(x0, sel(s(z0), x2))) -> c7(A__SEL(mark(x0), a__sel(s(mark(z0)), mark(x2))), MARK(x0))
   MARK(sel(x0, sel(0, x2))) -> c7(A__SEL(mark(x0), a__sel(0, mark(x2))), MARK(x0))
   MARK(sel(from(z0), sel(x1, x2))) -> c7(A__SEL(a__from(mark(z0)), a__sel(mark(x1), mark(x2))), MARK(from(z0)))
   MARK(sel(sel(z0, z1), sel(x1, x2))) -> c7(A__SEL(a__sel(mark(z0), mark(z1)), a__sel(mark(x1), mark(x2))), MARK(sel(z0, z1)))
   MARK(sel(s(z0), sel(x1, x2))) -> c7(A__SEL(s(mark(z0)), a__sel(mark(x1), mark(x2))), MARK(s(z0)))
   MARK(sel(x0, sel(x1, x2))) -> c7(MARK(x0))
   MARK(sel(cons(z0, z1), sel(x1, x2))) -> c7(MARK(cons(z0, z1)))
   MARK(sel(0, sel(x1, x2))) -> c7(A__SEL(0, a__sel(mark(x1), mark(x2))))
   MARK(sel(x0, cons(from(z0), x2))) -> c7(A__SEL(mark(x0), cons(a__from(mark(z0)), x2)), MARK(x0))
   MARK(sel(x0, cons(sel(z0, z1), x2))) -> c7(A__SEL(mark(x0), cons(a__sel(mark(z0), mark(z1)), x2)), MARK(x0))
   MARK(sel(x0, cons(cons(z0, z1), x2))) -> c7(A__SEL(mark(x0), cons(cons(mark(z0), z1), x2)), MARK(x0))
   MARK(sel(x0, cons(s(z0), x2))) -> c7(A__SEL(mark(x0), cons(s(mark(z0)), x2)), MARK(x0))
   MARK(sel(x0, cons(0, x2))) -> c7(A__SEL(mark(x0), cons(0, x2)), MARK(x0))
   MARK(sel(from(z0), cons(x1, x2))) -> c7(A__SEL(a__from(mark(z0)), cons(mark(x1), x2)), MARK(from(z0)))
   MARK(sel(sel(z0, z1), cons(x1, x2))) -> c7(A__SEL(a__sel(mark(z0), mark(z1)), cons(mark(x1), x2)), MARK(sel(z0, z1)))
   MARK(sel(s(z0), cons(x1, x2))) -> c7(A__SEL(s(mark(z0)), cons(mark(x1), x2)), MARK(s(z0)))
   MARK(sel(cons(z0, z1), cons(x1, x2))) -> c7(MARK(cons(z0, z1)))
   MARK(sel(0, cons(x1, x2))) -> c7(A__SEL(0, cons(mark(x1), x2)))
   MARK(sel(from(from(z0)), x1)) -> c7(A__SEL(a__from(a__from(mark(z0))), mark(x1)), MARK(from(from(z0))))
   MARK(sel(from(sel(z0, z1)), x1)) -> c7(A__SEL(a__from(a__sel(mark(z0), mark(z1))), mark(x1)), MARK(from(sel(z0, z1))))
   MARK(sel(from(cons(z0, z1)), x1)) -> c7(A__SEL(a__from(cons(mark(z0), z1)), mark(x1)), MARK(from(cons(z0, z1))))
   MARK(sel(from(s(z0)), x1)) -> c7(A__SEL(a__from(s(mark(z0))), mark(x1)), MARK(from(s(z0))))
   MARK(sel(from(0), x1)) -> c7(A__SEL(a__from(0), mark(x1)), MARK(from(0)))
   MARK(sel(from(x0), x1)) -> c7(MARK(from(x0)))
   MARK(sel(from(x0), s(z0))) -> c7(MARK(from(x0)))
   MARK(sel(from(x0), 0)) -> c7(MARK(from(x0)))
   MARK(sel(sel(x0, from(z0)), x2)) -> c7(A__SEL(a__sel(mark(x0), a__from(mark(z0))), mark(x2)), MARK(sel(x0, from(z0))))
   MARK(sel(sel(x0, sel(z0, z1)), x2)) -> c7(A__SEL(a__sel(mark(x0), a__sel(mark(z0), mark(z1))), mark(x2)), MARK(sel(x0, sel(z0, z1))))
   MARK(sel(sel(x0, cons(z0, z1)), x2)) -> c7(A__SEL(a__sel(mark(x0), cons(mark(z0), z1)), mark(x2)), MARK(sel(x0, cons(z0, z1))))
   MARK(sel(sel(x0, s(z0)), x2)) -> c7(A__SEL(a__sel(mark(x0), s(mark(z0))), mark(x2)), MARK(sel(x0, s(z0))))
   MARK(sel(sel(x0, 0), x2)) -> c7(A__SEL(a__sel(mark(x0), 0), mark(x2)), MARK(sel(x0, 0)))
   MARK(sel(sel(from(z0), x1), x2)) -> c7(A__SEL(a__sel(a__from(mark(z0)), mark(x1)), mark(x2)), MARK(sel(from(z0), x1)))
   MARK(sel(sel(sel(z0, z1), x1), x2)) -> c7(A__SEL(a__sel(a__sel(mark(z0), mark(z1)), mark(x1)), mark(x2)), MARK(sel(sel(z0, z1), x1)))
   MARK(sel(sel(cons(z0, z1), x1), x2)) -> c7(A__SEL(a__sel(cons(mark(z0), z1), mark(x1)), mark(x2)), MARK(sel(cons(z0, z1), x1)))
   MARK(sel(sel(s(z0), x1), x2)) -> c7(A__SEL(a__sel(s(mark(z0)), mark(x1)), mark(x2)), MARK(sel(s(z0), x1)))
   MARK(sel(sel(0, x1), x2)) -> c7(A__SEL(a__sel(0, mark(x1)), mark(x2)), MARK(sel(0, x1)))
   MARK(sel(sel(x0, x1), s(z0))) -> c7(MARK(sel(x0, x1)))
   MARK(sel(sel(x0, x1), 0)) -> c7(MARK(sel(x0, x1)))
   MARK(sel(sel(x0, x1), x2)) -> c7(MARK(sel(x0, x1)))
   MARK(sel(s(from(z0)), x1)) -> c7(A__SEL(s(a__from(mark(z0))), mark(x1)), MARK(s(from(z0))))
   MARK(sel(s(sel(z0, z1)), x1)) -> c7(A__SEL(s(a__sel(mark(z0), mark(z1))), mark(x1)), MARK(s(sel(z0, z1))))
   MARK(sel(s(cons(z0, z1)), x1)) -> c7(A__SEL(s(cons(mark(z0), z1)), mark(x1)), MARK(s(cons(z0, z1))))
   MARK(sel(s(s(z0)), x1)) -> c7(A__SEL(s(s(mark(z0))), mark(x1)), MARK(s(s(z0))))
   MARK(sel(s(0), x1)) -> c7(A__SEL(s(0), mark(x1)), MARK(s(0)))
   MARK(sel(s(x0), x1)) -> c7(MARK(s(x0)))
   MARK(sel(s(x0), s(z0))) -> c7(MARK(s(x0)))
   MARK(sel(s(x0), 0)) -> c7(MARK(s(x0)))
   MARK(sel(x0, from(x1))) -> c8(A__SEL(mark(x0), cons(mark(mark(x1)), from(s(mark(x1))))), MARK(from(x1)))
   MARK(sel(x0, from(from(z0)))) -> c8(A__SEL(mark(x0), a__from(a__from(mark(z0)))), MARK(from(from(z0))))
   MARK(sel(x0, from(sel(z0, z1)))) -> c8(A__SEL(mark(x0), a__from(a__sel(mark(z0), mark(z1)))), MARK(from(sel(z0, z1))))
   MARK(sel(x0, from(cons(z0, z1)))) -> c8(A__SEL(mark(x0), a__from(cons(mark(z0), z1))), MARK(from(cons(z0, z1))))
   MARK(sel(x0, from(s(z0)))) -> c8(A__SEL(mark(x0), a__from(s(mark(z0)))), MARK(from(s(z0))))
   MARK(sel(x0, from(0))) -> c8(A__SEL(mark(x0), a__from(0)), MARK(from(0)))
   MARK(sel(from(z0), from(x1))) -> c8(A__SEL(a__from(mark(z0)), a__from(mark(x1))), MARK(from(x1)))
   MARK(sel(sel(z0, z1), from(x1))) -> c8(A__SEL(a__sel(mark(z0), mark(z1)), a__from(mark(x1))), MARK(from(x1)))
   MARK(sel(s(z0), from(x1))) -> c8(A__SEL(s(mark(z0)), a__from(mark(x1))), MARK(from(x1)))
   MARK(sel(0, from(x1))) -> c8(A__SEL(0, a__from(mark(x1))), MARK(from(x1)))
   MARK(sel(x0, from(x1))) -> c8(MARK(from(x1)))
   MARK(sel(cons(z0, z1), from(x1))) -> c8(MARK(from(x1)))
   MARK(sel(x0, sel(x1, from(z0)))) -> c8(A__SEL(mark(x0), a__sel(mark(x1), a__from(mark(z0)))), MARK(sel(x1, from(z0))))
   MARK(sel(x0, sel(x1, sel(z0, z1)))) -> c8(A__SEL(mark(x0), a__sel(mark(x1), a__sel(mark(z0), mark(z1)))), MARK(sel(x1, sel(z0, z1))))
   MARK(sel(x0, sel(x1, cons(z0, z1)))) -> c8(A__SEL(mark(x0), a__sel(mark(x1), cons(mark(z0), z1))), MARK(sel(x1, cons(z0, z1))))
   MARK(sel(x0, sel(x1, s(z0)))) -> c8(A__SEL(mark(x0), a__sel(mark(x1), s(mark(z0)))), MARK(sel(x1, s(z0))))
   MARK(sel(x0, sel(x1, 0))) -> c8(A__SEL(mark(x0), a__sel(mark(x1), 0)), MARK(sel(x1, 0)))
   MARK(sel(x0, sel(from(z0), x2))) -> c8(A__SEL(mark(x0), a__sel(a__from(mark(z0)), mark(x2))), MARK(sel(from(z0), x2)))
   MARK(sel(x0, sel(sel(z0, z1), x2))) -> c8(A__SEL(mark(x0), a__sel(a__sel(mark(z0), mark(z1)), mark(x2))), MARK(sel(sel(z0, z1), x2)))
   MARK(sel(x0, sel(cons(z0, z1), x2))) -> c8(A__SEL(mark(x0), a__sel(cons(mark(z0), z1), mark(x2))), MARK(sel(cons(z0, z1), x2)))
   MARK(sel(x0, sel(s(z0), x2))) -> c8(A__SEL(mark(x0), a__sel(s(mark(z0)), mark(x2))), MARK(sel(s(z0), x2)))
   MARK(sel(x0, sel(0, x2))) -> c8(A__SEL(mark(x0), a__sel(0, mark(x2))), MARK(sel(0, x2)))
   MARK(sel(from(z0), sel(x1, x2))) -> c8(A__SEL(a__from(mark(z0)), a__sel(mark(x1), mark(x2))), MARK(sel(x1, x2)))
   MARK(sel(sel(z0, z1), sel(x1, x2))) -> c8(A__SEL(a__sel(mark(z0), mark(z1)), a__sel(mark(x1), mark(x2))), MARK(sel(x1, x2)))
   MARK(sel(s(z0), sel(x1, x2))) -> c8(A__SEL(s(mark(z0)), a__sel(mark(x1), mark(x2))), MARK(sel(x1, x2)))
   MARK(sel(0, sel(x1, x2))) -> c8(A__SEL(0, a__sel(mark(x1), mark(x2))), MARK(sel(x1, x2)))
   MARK(sel(x0, sel(x1, x2))) -> c8(MARK(sel(x1, x2)))
   MARK(sel(cons(z0, z1), sel(x1, x2))) -> c8(MARK(sel(x1, x2)))
S tuples:
   A__FROM(z0) -> c(MARK(z0))
   A__SEL(0, cons(z0, z1)) -> c2(MARK(z0))
   MARK(from(z0)) -> c6(A__FROM(mark(z0)), MARK(z0))
   MARK(cons(z0, z1)) -> c9(MARK(z0))
   MARK(s(z0)) -> c10(MARK(z0))
   A__SEL(s(x0), cons(x1, s(z0))) -> c3(MARK(x0))
   A__SEL(s(x0), cons(x1, 0)) -> c3(MARK(x0))
   A__SEL(s(cons(z0, z1)), cons(x1, x2)) -> c3(MARK(cons(z0, z1)))
   A__SEL(s(x0), cons(x1, s(z0))) -> c4(MARK(s(z0)))
   A__SEL(s(cons(z0, z1)), cons(x1, x2)) -> c4(MARK(x2))
   MARK(sel(x0, s(z0))) -> c7(MARK(x0))
   MARK(sel(x0, 0)) -> c7(MARK(x0))
   MARK(sel(cons(z0, z1), x1)) -> c7(MARK(cons(z0, z1)))
   MARK(sel(x0, cons(z0, z1))) -> c8(A__SEL(mark(x0), cons(mark(z0), z1)), MARK(cons(z0, z1)))
   MARK(sel(from(z0), x1)) -> c8(A__SEL(a__from(mark(z0)), mark(x1)), MARK(x1))
   MARK(sel(sel(z0, z1), x1)) -> c8(A__SEL(a__sel(mark(z0), mark(z1)), mark(x1)), MARK(x1))
   MARK(sel(s(z0), x1)) -> c8(A__SEL(s(mark(z0)), mark(x1)), MARK(x1))
   MARK(sel(0, x1)) -> c8(A__SEL(0, mark(x1)), MARK(x1))
   MARK(sel(x0, s(z0))) -> c8(MARK(s(z0)))
   MARK(sel(cons(z0, z1), x1)) -> c8(MARK(x1))
   A__SEL(s(x0), cons(x1, from(x2))) -> c3(A__SEL(mark(x0), cons(mark(mark(x2)), from(s(mark(x2))))), MARK(x0))
   A__SEL(s(x0), cons(x1, from(from(z0)))) -> c3(A__SEL(mark(x0), a__from(a__from(mark(z0)))), MARK(x0))
   A__SEL(s(x0), cons(x1, from(sel(z0, z1)))) -> c3(A__SEL(mark(x0), a__from(a__sel(mark(z0), mark(z1)))), MARK(x0))
   A__SEL(s(x0), cons(x1, from(cons(z0, z1)))) -> c3(A__SEL(mark(x0), a__from(cons(mark(z0), z1))), MARK(x0))
   A__SEL(s(x0), cons(x1, from(s(z0)))) -> c3(A__SEL(mark(x0), a__from(s(mark(z0)))), MARK(x0))
   A__SEL(s(x0), cons(x1, from(0))) -> c3(A__SEL(mark(x0), a__from(0)), MARK(x0))
   A__SEL(s(from(z0)), cons(x1, from(x2))) -> c3(A__SEL(a__from(mark(z0)), a__from(mark(x2))), MARK(from(z0)))
   A__SEL(s(sel(z0, z1)), cons(x1, from(x2))) -> c3(A__SEL(a__sel(mark(z0), mark(z1)), a__from(mark(x2))), MARK(sel(z0, z1)))
   A__SEL(s(s(z0)), cons(x1, from(x2))) -> c3(A__SEL(s(mark(z0)), a__from(mark(x2))), MARK(s(z0)))
   A__SEL(s(x0), cons(x1, from(x2))) -> c3(MARK(x0))
   A__SEL(s(cons(z0, z1)), cons(x1, from(x2))) -> c3(MARK(cons(z0, z1)))
   A__SEL(s(0), cons(x1, from(x2))) -> c3(A__SEL(0, a__from(mark(x2))))
   A__SEL(s(x0), cons(x1, sel(x2, from(z0)))) -> c3(A__SEL(mark(x0), a__sel(mark(x2), a__from(mark(z0)))), MARK(x0))
   A__SEL(s(x0), cons(x1, sel(x2, sel(z0, z1)))) -> c3(A__SEL(mark(x0), a__sel(mark(x2), a__sel(mark(z0), mark(z1)))), MARK(x0))
   A__SEL(s(x0), cons(x1, sel(x2, cons(z0, z1)))) -> c3(A__SEL(mark(x0), a__sel(mark(x2), cons(mark(z0), z1))), MARK(x0))
   A__SEL(s(x0), cons(x1, sel(x2, s(z0)))) -> c3(A__SEL(mark(x0), a__sel(mark(x2), s(mark(z0)))), MARK(x0))
   A__SEL(s(x0), cons(x1, sel(x2, 0))) -> c3(A__SEL(mark(x0), a__sel(mark(x2), 0)), MARK(x0))
   A__SEL(s(x0), cons(x1, sel(from(z0), x3))) -> c3(A__SEL(mark(x0), a__sel(a__from(mark(z0)), mark(x3))), MARK(x0))
   A__SEL(s(x0), cons(x1, sel(sel(z0, z1), x3))) -> c3(A__SEL(mark(x0), a__sel(a__sel(mark(z0), mark(z1)), mark(x3))), MARK(x0))
   A__SEL(s(x0), cons(x1, sel(cons(z0, z1), x3))) -> c3(A__SEL(mark(x0), a__sel(cons(mark(z0), z1), mark(x3))), MARK(x0))
   A__SEL(s(x0), cons(x1, sel(s(z0), x3))) -> c3(A__SEL(mark(x0), a__sel(s(mark(z0)), mark(x3))), MARK(x0))
   A__SEL(s(x0), cons(x1, sel(0, x3))) -> c3(A__SEL(mark(x0), a__sel(0, mark(x3))), MARK(x0))
   A__SEL(s(from(z0)), cons(x1, sel(x2, x3))) -> c3(A__SEL(a__from(mark(z0)), a__sel(mark(x2), mark(x3))), MARK(from(z0)))
   A__SEL(s(sel(z0, z1)), cons(x1, sel(x2, x3))) -> c3(A__SEL(a__sel(mark(z0), mark(z1)), a__sel(mark(x2), mark(x3))), MARK(sel(z0, z1)))
   A__SEL(s(s(z0)), cons(x1, sel(x2, x3))) -> c3(A__SEL(s(mark(z0)), a__sel(mark(x2), mark(x3))), MARK(s(z0)))
   A__SEL(s(x0), cons(x1, sel(x2, x3))) -> c3(MARK(x0))
   A__SEL(s(cons(z0, z1)), cons(x1, sel(x2, x3))) -> c3(MARK(cons(z0, z1)))
   A__SEL(s(0), cons(x1, sel(x2, x3))) -> c3(A__SEL(0, a__sel(mark(x2), mark(x3))))
   A__SEL(s(x0), cons(x1, cons(from(z0), x3))) -> c3(A__SEL(mark(x0), cons(a__from(mark(z0)), x3)), MARK(x0))
   A__SEL(s(x0), cons(x1, cons(sel(z0, z1), x3))) -> c3(A__SEL(mark(x0), cons(a__sel(mark(z0), mark(z1)), x3)), MARK(x0))
   A__SEL(s(x0), cons(x1, cons(cons(z0, z1), x3))) -> c3(A__SEL(mark(x0), cons(cons(mark(z0), z1), x3)), MARK(x0))
   A__SEL(s(x0), cons(x1, cons(s(z0), x3))) -> c3(A__SEL(mark(x0), cons(s(mark(z0)), x3)), MARK(x0))
   A__SEL(s(x0), cons(x1, cons(0, x3))) -> c3(A__SEL(mark(x0), cons(0, x3)), MARK(x0))
   A__SEL(s(from(z0)), cons(x1, cons(x2, x3))) -> c3(A__SEL(a__from(mark(z0)), cons(mark(x2), x3)), MARK(from(z0)))
   A__SEL(s(sel(z0, z1)), cons(x1, cons(x2, x3))) -> c3(A__SEL(a__sel(mark(z0), mark(z1)), cons(mark(x2), x3)), MARK(sel(z0, z1)))
   A__SEL(s(s(z0)), cons(x1, cons(x2, x3))) -> c3(A__SEL(s(mark(z0)), cons(mark(x2), x3)), MARK(s(z0)))
   A__SEL(s(cons(z0, z1)), cons(x1, cons(x2, x3))) -> c3(MARK(cons(z0, z1)))
   A__SEL(s(0), cons(x1, cons(x2, x3))) -> c3(A__SEL(0, cons(mark(x2), x3)))
   A__SEL(s(from(from(z0))), cons(x1, x2)) -> c3(A__SEL(a__from(a__from(mark(z0))), mark(x2)), MARK(from(from(z0))))
   A__SEL(s(from(sel(z0, z1))), cons(x1, x2)) -> c3(A__SEL(a__from(a__sel(mark(z0), mark(z1))), mark(x2)), MARK(from(sel(z0, z1))))
   A__SEL(s(from(cons(z0, z1))), cons(x1, x2)) -> c3(A__SEL(a__from(cons(mark(z0), z1)), mark(x2)), MARK(from(cons(z0, z1))))
   A__SEL(s(from(s(z0))), cons(x1, x2)) -> c3(A__SEL(a__from(s(mark(z0))), mark(x2)), MARK(from(s(z0))))
   A__SEL(s(from(0)), cons(x1, x2)) -> c3(A__SEL(a__from(0), mark(x2)), MARK(from(0)))
   A__SEL(s(from(x0)), cons(x1, x2)) -> c3(MARK(from(x0)))
   A__SEL(s(from(x0)), cons(x1, s(z0))) -> c3(MARK(from(x0)))
   A__SEL(s(from(x0)), cons(x1, 0)) -> c3(MARK(from(x0)))
   A__SEL(s(sel(x0, from(z0))), cons(x2, x3)) -> c3(A__SEL(a__sel(mark(x0), a__from(mark(z0))), mark(x3)), MARK(sel(x0, from(z0))))
   A__SEL(s(sel(x0, sel(z0, z1))), cons(x2, x3)) -> c3(A__SEL(a__sel(mark(x0), a__sel(mark(z0), mark(z1))), mark(x3)), MARK(sel(x0, sel(z0, z1))))
   A__SEL(s(sel(x0, cons(z0, z1))), cons(x2, x3)) -> c3(A__SEL(a__sel(mark(x0), cons(mark(z0), z1)), mark(x3)), MARK(sel(x0, cons(z0, z1))))
   A__SEL(s(sel(x0, s(z0))), cons(x2, x3)) -> c3(A__SEL(a__sel(mark(x0), s(mark(z0))), mark(x3)), MARK(sel(x0, s(z0))))
   A__SEL(s(sel(x0, 0)), cons(x2, x3)) -> c3(A__SEL(a__sel(mark(x0), 0), mark(x3)), MARK(sel(x0, 0)))
   A__SEL(s(sel(from(z0), x1)), cons(x2, x3)) -> c3(A__SEL(a__sel(a__from(mark(z0)), mark(x1)), mark(x3)), MARK(sel(from(z0), x1)))
   A__SEL(s(sel(sel(z0, z1), x1)), cons(x2, x3)) -> c3(A__SEL(a__sel(a__sel(mark(z0), mark(z1)), mark(x1)), mark(x3)), MARK(sel(sel(z0, z1), x1)))
   A__SEL(s(sel(cons(z0, z1), x1)), cons(x2, x3)) -> c3(A__SEL(a__sel(cons(mark(z0), z1), mark(x1)), mark(x3)), MARK(sel(cons(z0, z1), x1)))
   A__SEL(s(sel(s(z0), x1)), cons(x2, x3)) -> c3(A__SEL(a__sel(s(mark(z0)), mark(x1)), mark(x3)), MARK(sel(s(z0), x1)))
   A__SEL(s(sel(0, x1)), cons(x2, x3)) -> c3(A__SEL(a__sel(0, mark(x1)), mark(x3)), MARK(sel(0, x1)))
   A__SEL(s(sel(x0, x1)), cons(x2, s(z0))) -> c3(MARK(sel(x0, x1)))
   A__SEL(s(sel(x0, x1)), cons(x2, 0)) -> c3(MARK(sel(x0, x1)))
   A__SEL(s(sel(x0, x1)), cons(x2, x3)) -> c3(MARK(sel(x0, x1)))
   A__SEL(s(s(from(z0))), cons(x1, x2)) -> c3(A__SEL(s(a__from(mark(z0))), mark(x2)), MARK(s(from(z0))))
   A__SEL(s(s(sel(z0, z1))), cons(x1, x2)) -> c3(A__SEL(s(a__sel(mark(z0), mark(z1))), mark(x2)), MARK(s(sel(z0, z1))))
   A__SEL(s(s(cons(z0, z1))), cons(x1, x2)) -> c3(A__SEL(s(cons(mark(z0), z1)), mark(x2)), MARK(s(cons(z0, z1))))
   A__SEL(s(s(s(z0))), cons(x1, x2)) -> c3(A__SEL(s(s(mark(z0))), mark(x2)), MARK(s(s(z0))))
   A__SEL(s(s(0)), cons(x1, x2)) -> c3(A__SEL(s(0), mark(x2)), MARK(s(0)))
   A__SEL(s(s(x0)), cons(x1, x2)) -> c3(MARK(s(x0)))
   A__SEL(s(s(x0)), cons(x1, s(z0))) -> c3(MARK(s(x0)))
   A__SEL(s(s(x0)), cons(x1, 0)) -> c3(MARK(s(x0)))
   A__SEL(s(x0), cons(x1, from(x2))) -> c4(A__SEL(mark(x0), cons(mark(mark(x2)), from(s(mark(x2))))), MARK(from(x2)))
   A__SEL(s(x0), cons(x1, from(from(z0)))) -> c4(A__SEL(mark(x0), a__from(a__from(mark(z0)))), MARK(from(from(z0))))
   A__SEL(s(x0), cons(x1, from(sel(z0, z1)))) -> c4(A__SEL(mark(x0), a__from(a__sel(mark(z0), mark(z1)))), MARK(from(sel(z0, z1))))
   A__SEL(s(x0), cons(x1, from(cons(z0, z1)))) -> c4(A__SEL(mark(x0), a__from(cons(mark(z0), z1))), MARK(from(cons(z0, z1))))
   A__SEL(s(x0), cons(x1, from(s(z0)))) -> c4(A__SEL(mark(x0), a__from(s(mark(z0)))), MARK(from(s(z0))))
   A__SEL(s(x0), cons(x1, from(0))) -> c4(A__SEL(mark(x0), a__from(0)), MARK(from(0)))
   A__SEL(s(from(z0)), cons(x1, from(x2))) -> c4(A__SEL(a__from(mark(z0)), a__from(mark(x2))), MARK(from(x2)))
   A__SEL(s(sel(z0, z1)), cons(x1, from(x2))) -> c4(A__SEL(a__sel(mark(z0), mark(z1)), a__from(mark(x2))), MARK(from(x2)))
   A__SEL(s(s(z0)), cons(x1, from(x2))) -> c4(A__SEL(s(mark(z0)), a__from(mark(x2))), MARK(from(x2)))
   A__SEL(s(0), cons(x1, from(x2))) -> c4(A__SEL(0, a__from(mark(x2))), MARK(from(x2)))
   A__SEL(s(x0), cons(x1, from(x2))) -> c4(MARK(from(x2)))
   A__SEL(s(cons(z0, z1)), cons(x1, from(x2))) -> c4(MARK(from(x2)))
   A__SEL(s(x0), cons(x1, sel(x2, from(z0)))) -> c4(A__SEL(mark(x0), a__sel(mark(x2), a__from(mark(z0)))), MARK(sel(x2, from(z0))))
   A__SEL(s(x0), cons(x1, sel(x2, sel(z0, z1)))) -> c4(A__SEL(mark(x0), a__sel(mark(x2), a__sel(mark(z0), mark(z1)))), MARK(sel(x2, sel(z0, z1))))
   A__SEL(s(x0), cons(x1, sel(x2, cons(z0, z1)))) -> c4(A__SEL(mark(x0), a__sel(mark(x2), cons(mark(z0), z1))), MARK(sel(x2, cons(z0, z1))))
   A__SEL(s(x0), cons(x1, sel(x2, s(z0)))) -> c4(A__SEL(mark(x0), a__sel(mark(x2), s(mark(z0)))), MARK(sel(x2, s(z0))))
   A__SEL(s(x0), cons(x1, sel(x2, 0))) -> c4(A__SEL(mark(x0), a__sel(mark(x2), 0)), MARK(sel(x2, 0)))
   A__SEL(s(x0), cons(x1, sel(from(z0), x3))) -> c4(A__SEL(mark(x0), a__sel(a__from(mark(z0)), mark(x3))), MARK(sel(from(z0), x3)))
   A__SEL(s(x0), cons(x1, sel(sel(z0, z1), x3))) -> c4(A__SEL(mark(x0), a__sel(a__sel(mark(z0), mark(z1)), mark(x3))), MARK(sel(sel(z0, z1), x3)))
   A__SEL(s(x0), cons(x1, sel(cons(z0, z1), x3))) -> c4(A__SEL(mark(x0), a__sel(cons(mark(z0), z1), mark(x3))), MARK(sel(cons(z0, z1), x3)))
   A__SEL(s(x0), cons(x1, sel(s(z0), x3))) -> c4(A__SEL(mark(x0), a__sel(s(mark(z0)), mark(x3))), MARK(sel(s(z0), x3)))
   A__SEL(s(x0), cons(x1, sel(0, x3))) -> c4(A__SEL(mark(x0), a__sel(0, mark(x3))), MARK(sel(0, x3)))
   A__SEL(s(from(z0)), cons(x1, sel(x2, x3))) -> c4(A__SEL(a__from(mark(z0)), a__sel(mark(x2), mark(x3))), MARK(sel(x2, x3)))
   A__SEL(s(sel(z0, z1)), cons(x1, sel(x2, x3))) -> c4(A__SEL(a__sel(mark(z0), mark(z1)), a__sel(mark(x2), mark(x3))), MARK(sel(x2, x3)))
   A__SEL(s(s(z0)), cons(x1, sel(x2, x3))) -> c4(A__SEL(s(mark(z0)), a__sel(mark(x2), mark(x3))), MARK(sel(x2, x3)))
   A__SEL(s(0), cons(x1, sel(x2, x3))) -> c4(A__SEL(0, a__sel(mark(x2), mark(x3))), MARK(sel(x2, x3)))
   A__SEL(s(x0), cons(x1, sel(x2, x3))) -> c4(MARK(sel(x2, x3)))
   A__SEL(s(cons(z0, z1)), cons(x1, sel(x2, x3))) -> c4(MARK(sel(x2, x3)))
   A__SEL(s(x0), cons(x1, cons(from(z0), x3))) -> c4(A__SEL(mark(x0), cons(a__from(mark(z0)), x3)), MARK(cons(from(z0), x3)))
   A__SEL(s(x0), cons(x1, cons(sel(z0, z1), x3))) -> c4(A__SEL(mark(x0), cons(a__sel(mark(z0), mark(z1)), x3)), MARK(cons(sel(z0, z1), x3)))
   A__SEL(s(x0), cons(x1, cons(cons(z0, z1), x3))) -> c4(A__SEL(mark(x0), cons(cons(mark(z0), z1), x3)), MARK(cons(cons(z0, z1), x3)))
   A__SEL(s(x0), cons(x1, cons(s(z0), x3))) -> c4(A__SEL(mark(x0), cons(s(mark(z0)), x3)), MARK(cons(s(z0), x3)))
   A__SEL(s(x0), cons(x1, cons(0, x3))) -> c4(A__SEL(mark(x0), cons(0, x3)), MARK(cons(0, x3)))
   A__SEL(s(from(z0)), cons(x1, cons(x2, x3))) -> c4(A__SEL(a__from(mark(z0)), cons(mark(x2), x3)), MARK(cons(x2, x3)))
   A__SEL(s(sel(z0, z1)), cons(x1, cons(x2, x3))) -> c4(A__SEL(a__sel(mark(z0), mark(z1)), cons(mark(x2), x3)), MARK(cons(x2, x3)))
   A__SEL(s(s(z0)), cons(x1, cons(x2, x3))) -> c4(A__SEL(s(mark(z0)), cons(mark(x2), x3)), MARK(cons(x2, x3)))
   A__SEL(s(0), cons(x1, cons(x2, x3))) -> c4(A__SEL(0, cons(mark(x2), x3)), MARK(cons(x2, x3)))
   A__SEL(s(x0), cons(x1, cons(x2, x3))) -> c4(MARK(cons(x2, x3)))
   A__SEL(s(cons(z0, z1)), cons(x1, cons(x2, x3))) -> c4(MARK(cons(x2, x3)))
   A__SEL(s(from(from(z0))), cons(x1, x2)) -> c4(A__SEL(a__from(a__from(mark(z0))), mark(x2)), MARK(x2))
   A__SEL(s(from(sel(z0, z1))), cons(x1, x2)) -> c4(A__SEL(a__from(a__sel(mark(z0), mark(z1))), mark(x2)), MARK(x2))
   A__SEL(s(from(cons(z0, z1))), cons(x1, x2)) -> c4(A__SEL(a__from(cons(mark(z0), z1)), mark(x2)), MARK(x2))
   A__SEL(s(from(s(z0))), cons(x1, x2)) -> c4(A__SEL(a__from(s(mark(z0))), mark(x2)), MARK(x2))
   A__SEL(s(from(0)), cons(x1, x2)) -> c4(A__SEL(a__from(0), mark(x2)), MARK(x2))
   A__SEL(s(from(x0)), cons(x1, s(z0))) -> c4(MARK(s(z0)))
   A__SEL(s(from(x0)), cons(x1, x2)) -> c4(MARK(x2))
   A__SEL(s(sel(x0, from(z0))), cons(x2, x3)) -> c4(A__SEL(a__sel(mark(x0), a__from(mark(z0))), mark(x3)), MARK(x3))
   A__SEL(s(sel(x0, sel(z0, z1))), cons(x2, x3)) -> c4(A__SEL(a__sel(mark(x0), a__sel(mark(z0), mark(z1))), mark(x3)), MARK(x3))
   A__SEL(s(sel(x0, cons(z0, z1))), cons(x2, x3)) -> c4(A__SEL(a__sel(mark(x0), cons(mark(z0), z1)), mark(x3)), MARK(x3))
   A__SEL(s(sel(x0, s(z0))), cons(x2, x3)) -> c4(A__SEL(a__sel(mark(x0), s(mark(z0))), mark(x3)), MARK(x3))
   A__SEL(s(sel(x0, 0)), cons(x2, x3)) -> c4(A__SEL(a__sel(mark(x0), 0), mark(x3)), MARK(x3))
   A__SEL(s(sel(from(z0), x1)), cons(x2, x3)) -> c4(A__SEL(a__sel(a__from(mark(z0)), mark(x1)), mark(x3)), MARK(x3))
   A__SEL(s(sel(sel(z0, z1), x1)), cons(x2, x3)) -> c4(A__SEL(a__sel(a__sel(mark(z0), mark(z1)), mark(x1)), mark(x3)), MARK(x3))
   A__SEL(s(sel(cons(z0, z1), x1)), cons(x2, x3)) -> c4(A__SEL(a__sel(cons(mark(z0), z1), mark(x1)), mark(x3)), MARK(x3))
   A__SEL(s(sel(s(z0), x1)), cons(x2, x3)) -> c4(A__SEL(a__sel(s(mark(z0)), mark(x1)), mark(x3)), MARK(x3))
   A__SEL(s(sel(0, x1)), cons(x2, x3)) -> c4(A__SEL(a__sel(0, mark(x1)), mark(x3)), MARK(x3))
   A__SEL(s(sel(x0, x1)), cons(x2, s(z0))) -> c4(MARK(s(z0)))
   A__SEL(s(sel(x0, x1)), cons(x2, x3)) -> c4(MARK(x3))
   A__SEL(s(s(from(z0))), cons(x1, x2)) -> c4(A__SEL(s(a__from(mark(z0))), mark(x2)), MARK(x2))
   A__SEL(s(s(sel(z0, z1))), cons(x1, x2)) -> c4(A__SEL(s(a__sel(mark(z0), mark(z1))), mark(x2)), MARK(x2))
   A__SEL(s(s(cons(z0, z1))), cons(x1, x2)) -> c4(A__SEL(s(cons(mark(z0), z1)), mark(x2)), MARK(x2))
   A__SEL(s(s(s(z0))), cons(x1, x2)) -> c4(A__SEL(s(s(mark(z0))), mark(x2)), MARK(x2))
   A__SEL(s(s(0)), cons(x1, x2)) -> c4(A__SEL(s(0), mark(x2)), MARK(x2))
   A__SEL(s(s(x0)), cons(x1, s(z0))) -> c4(MARK(s(z0)))
   A__SEL(s(0), cons(x0, s(z0))) -> c4(MARK(s(z0)))
   MARK(sel(x0, from(x1))) -> c7(A__SEL(mark(x0), cons(mark(mark(x1)), from(s(mark(x1))))), MARK(x0))
   MARK(sel(x0, from(from(z0)))) -> c7(A__SEL(mark(x0), a__from(a__from(mark(z0)))), MARK(x0))
   MARK(sel(x0, from(sel(z0, z1)))) -> c7(A__SEL(mark(x0), a__from(a__sel(mark(z0), mark(z1)))), MARK(x0))
   MARK(sel(x0, from(cons(z0, z1)))) -> c7(A__SEL(mark(x0), a__from(cons(mark(z0), z1))), MARK(x0))
   MARK(sel(x0, from(s(z0)))) -> c7(A__SEL(mark(x0), a__from(s(mark(z0)))), MARK(x0))
   MARK(sel(x0, from(0))) -> c7(A__SEL(mark(x0), a__from(0)), MARK(x0))
   MARK(sel(from(z0), from(x1))) -> c7(A__SEL(a__from(mark(z0)), a__from(mark(x1))), MARK(from(z0)))
   MARK(sel(sel(z0, z1), from(x1))) -> c7(A__SEL(a__sel(mark(z0), mark(z1)), a__from(mark(x1))), MARK(sel(z0, z1)))
   MARK(sel(s(z0), from(x1))) -> c7(A__SEL(s(mark(z0)), a__from(mark(x1))), MARK(s(z0)))
   MARK(sel(x0, from(x1))) -> c7(MARK(x0))
   MARK(sel(cons(z0, z1), from(x1))) -> c7(MARK(cons(z0, z1)))
   MARK(sel(0, from(x1))) -> c7(A__SEL(0, a__from(mark(x1))))
   MARK(sel(x0, sel(x1, from(z0)))) -> c7(A__SEL(mark(x0), a__sel(mark(x1), a__from(mark(z0)))), MARK(x0))
   MARK(sel(x0, sel(x1, sel(z0, z1)))) -> c7(A__SEL(mark(x0), a__sel(mark(x1), a__sel(mark(z0), mark(z1)))), MARK(x0))
   MARK(sel(x0, sel(x1, cons(z0, z1)))) -> c7(A__SEL(mark(x0), a__sel(mark(x1), cons(mark(z0), z1))), MARK(x0))
   MARK(sel(x0, sel(x1, s(z0)))) -> c7(A__SEL(mark(x0), a__sel(mark(x1), s(mark(z0)))), MARK(x0))
   MARK(sel(x0, sel(x1, 0))) -> c7(A__SEL(mark(x0), a__sel(mark(x1), 0)), MARK(x0))
   MARK(sel(x0, sel(from(z0), x2))) -> c7(A__SEL(mark(x0), a__sel(a__from(mark(z0)), mark(x2))), MARK(x0))
   MARK(sel(x0, sel(sel(z0, z1), x2))) -> c7(A__SEL(mark(x0), a__sel(a__sel(mark(z0), mark(z1)), mark(x2))), MARK(x0))
   MARK(sel(x0, sel(cons(z0, z1), x2))) -> c7(A__SEL(mark(x0), a__sel(cons(mark(z0), z1), mark(x2))), MARK(x0))
   MARK(sel(x0, sel(s(z0), x2))) -> c7(A__SEL(mark(x0), a__sel(s(mark(z0)), mark(x2))), MARK(x0))
   MARK(sel(x0, sel(0, x2))) -> c7(A__SEL(mark(x0), a__sel(0, mark(x2))), MARK(x0))
   MARK(sel(from(z0), sel(x1, x2))) -> c7(A__SEL(a__from(mark(z0)), a__sel(mark(x1), mark(x2))), MARK(from(z0)))
   MARK(sel(sel(z0, z1), sel(x1, x2))) -> c7(A__SEL(a__sel(mark(z0), mark(z1)), a__sel(mark(x1), mark(x2))), MARK(sel(z0, z1)))
   MARK(sel(s(z0), sel(x1, x2))) -> c7(A__SEL(s(mark(z0)), a__sel(mark(x1), mark(x2))), MARK(s(z0)))
   MARK(sel(x0, sel(x1, x2))) -> c7(MARK(x0))
   MARK(sel(cons(z0, z1), sel(x1, x2))) -> c7(MARK(cons(z0, z1)))
   MARK(sel(0, sel(x1, x2))) -> c7(A__SEL(0, a__sel(mark(x1), mark(x2))))
   MARK(sel(x0, cons(from(z0), x2))) -> c7(A__SEL(mark(x0), cons(a__from(mark(z0)), x2)), MARK(x0))
   MARK(sel(x0, cons(sel(z0, z1), x2))) -> c7(A__SEL(mark(x0), cons(a__sel(mark(z0), mark(z1)), x2)), MARK(x0))
   MARK(sel(x0, cons(cons(z0, z1), x2))) -> c7(A__SEL(mark(x0), cons(cons(mark(z0), z1), x2)), MARK(x0))
   MARK(sel(x0, cons(s(z0), x2))) -> c7(A__SEL(mark(x0), cons(s(mark(z0)), x2)), MARK(x0))
   MARK(sel(x0, cons(0, x2))) -> c7(A__SEL(mark(x0), cons(0, x2)), MARK(x0))
   MARK(sel(from(z0), cons(x1, x2))) -> c7(A__SEL(a__from(mark(z0)), cons(mark(x1), x2)), MARK(from(z0)))
   MARK(sel(sel(z0, z1), cons(x1, x2))) -> c7(A__SEL(a__sel(mark(z0), mark(z1)), cons(mark(x1), x2)), MARK(sel(z0, z1)))
   MARK(sel(s(z0), cons(x1, x2))) -> c7(A__SEL(s(mark(z0)), cons(mark(x1), x2)), MARK(s(z0)))
   MARK(sel(cons(z0, z1), cons(x1, x2))) -> c7(MARK(cons(z0, z1)))
   MARK(sel(0, cons(x1, x2))) -> c7(A__SEL(0, cons(mark(x1), x2)))
   MARK(sel(from(from(z0)), x1)) -> c7(A__SEL(a__from(a__from(mark(z0))), mark(x1)), MARK(from(from(z0))))
   MARK(sel(from(sel(z0, z1)), x1)) -> c7(A__SEL(a__from(a__sel(mark(z0), mark(z1))), mark(x1)), MARK(from(sel(z0, z1))))
   MARK(sel(from(cons(z0, z1)), x1)) -> c7(A__SEL(a__from(cons(mark(z0), z1)), mark(x1)), MARK(from(cons(z0, z1))))
   MARK(sel(from(s(z0)), x1)) -> c7(A__SEL(a__from(s(mark(z0))), mark(x1)), MARK(from(s(z0))))
   MARK(sel(from(0), x1)) -> c7(A__SEL(a__from(0), mark(x1)), MARK(from(0)))
   MARK(sel(from(x0), x1)) -> c7(MARK(from(x0)))
   MARK(sel(from(x0), s(z0))) -> c7(MARK(from(x0)))
   MARK(sel(from(x0), 0)) -> c7(MARK(from(x0)))
   MARK(sel(sel(x0, from(z0)), x2)) -> c7(A__SEL(a__sel(mark(x0), a__from(mark(z0))), mark(x2)), MARK(sel(x0, from(z0))))
   MARK(sel(sel(x0, sel(z0, z1)), x2)) -> c7(A__SEL(a__sel(mark(x0), a__sel(mark(z0), mark(z1))), mark(x2)), MARK(sel(x0, sel(z0, z1))))
   MARK(sel(sel(x0, cons(z0, z1)), x2)) -> c7(A__SEL(a__sel(mark(x0), cons(mark(z0), z1)), mark(x2)), MARK(sel(x0, cons(z0, z1))))
   MARK(sel(sel(x0, s(z0)), x2)) -> c7(A__SEL(a__sel(mark(x0), s(mark(z0))), mark(x2)), MARK(sel(x0, s(z0))))
   MARK(sel(sel(x0, 0), x2)) -> c7(A__SEL(a__sel(mark(x0), 0), mark(x2)), MARK(sel(x0, 0)))
   MARK(sel(sel(from(z0), x1), x2)) -> c7(A__SEL(a__sel(a__from(mark(z0)), mark(x1)), mark(x2)), MARK(sel(from(z0), x1)))
   MARK(sel(sel(sel(z0, z1), x1), x2)) -> c7(A__SEL(a__sel(a__sel(mark(z0), mark(z1)), mark(x1)), mark(x2)), MARK(sel(sel(z0, z1), x1)))
   MARK(sel(sel(cons(z0, z1), x1), x2)) -> c7(A__SEL(a__sel(cons(mark(z0), z1), mark(x1)), mark(x2)), MARK(sel(cons(z0, z1), x1)))
   MARK(sel(sel(s(z0), x1), x2)) -> c7(A__SEL(a__sel(s(mark(z0)), mark(x1)), mark(x2)), MARK(sel(s(z0), x1)))
   MARK(sel(sel(0, x1), x2)) -> c7(A__SEL(a__sel(0, mark(x1)), mark(x2)), MARK(sel(0, x1)))
   MARK(sel(sel(x0, x1), s(z0))) -> c7(MARK(sel(x0, x1)))
   MARK(sel(sel(x0, x1), 0)) -> c7(MARK(sel(x0, x1)))
   MARK(sel(sel(x0, x1), x2)) -> c7(MARK(sel(x0, x1)))
   MARK(sel(s(from(z0)), x1)) -> c7(A__SEL(s(a__from(mark(z0))), mark(x1)), MARK(s(from(z0))))
   MARK(sel(s(sel(z0, z1)), x1)) -> c7(A__SEL(s(a__sel(mark(z0), mark(z1))), mark(x1)), MARK(s(sel(z0, z1))))
   MARK(sel(s(cons(z0, z1)), x1)) -> c7(A__SEL(s(cons(mark(z0), z1)), mark(x1)), MARK(s(cons(z0, z1))))
   MARK(sel(s(s(z0)), x1)) -> c7(A__SEL(s(s(mark(z0))), mark(x1)), MARK(s(s(z0))))
   MARK(sel(s(0), x1)) -> c7(A__SEL(s(0), mark(x1)), MARK(s(0)))
   MARK(sel(s(x0), x1)) -> c7(MARK(s(x0)))
   MARK(sel(s(x0), s(z0))) -> c7(MARK(s(x0)))
   MARK(sel(s(x0), 0)) -> c7(MARK(s(x0)))
   MARK(sel(x0, from(x1))) -> c8(A__SEL(mark(x0), cons(mark(mark(x1)), from(s(mark(x1))))), MARK(from(x1)))
   MARK(sel(x0, from(from(z0)))) -> c8(A__SEL(mark(x0), a__from(a__from(mark(z0)))), MARK(from(from(z0))))
   MARK(sel(x0, from(sel(z0, z1)))) -> c8(A__SEL(mark(x0), a__from(a__sel(mark(z0), mark(z1)))), MARK(from(sel(z0, z1))))
   MARK(sel(x0, from(cons(z0, z1)))) -> c8(A__SEL(mark(x0), a__from(cons(mark(z0), z1))), MARK(from(cons(z0, z1))))
   MARK(sel(x0, from(s(z0)))) -> c8(A__SEL(mark(x0), a__from(s(mark(z0)))), MARK(from(s(z0))))
   MARK(sel(x0, from(0))) -> c8(A__SEL(mark(x0), a__from(0)), MARK(from(0)))
   MARK(sel(from(z0), from(x1))) -> c8(A__SEL(a__from(mark(z0)), a__from(mark(x1))), MARK(from(x1)))
   MARK(sel(sel(z0, z1), from(x1))) -> c8(A__SEL(a__sel(mark(z0), mark(z1)), a__from(mark(x1))), MARK(from(x1)))
   MARK(sel(s(z0), from(x1))) -> c8(A__SEL(s(mark(z0)), a__from(mark(x1))), MARK(from(x1)))
   MARK(sel(0, from(x1))) -> c8(A__SEL(0, a__from(mark(x1))), MARK(from(x1)))
   MARK(sel(x0, from(x1))) -> c8(MARK(from(x1)))
   MARK(sel(cons(z0, z1), from(x1))) -> c8(MARK(from(x1)))
   MARK(sel(x0, sel(x1, from(z0)))) -> c8(A__SEL(mark(x0), a__sel(mark(x1), a__from(mark(z0)))), MARK(sel(x1, from(z0))))
   MARK(sel(x0, sel(x1, sel(z0, z1)))) -> c8(A__SEL(mark(x0), a__sel(mark(x1), a__sel(mark(z0), mark(z1)))), MARK(sel(x1, sel(z0, z1))))
   MARK(sel(x0, sel(x1, cons(z0, z1)))) -> c8(A__SEL(mark(x0), a__sel(mark(x1), cons(mark(z0), z1))), MARK(sel(x1, cons(z0, z1))))
   MARK(sel(x0, sel(x1, s(z0)))) -> c8(A__SEL(mark(x0), a__sel(mark(x1), s(mark(z0)))), MARK(sel(x1, s(z0))))
   MARK(sel(x0, sel(x1, 0))) -> c8(A__SEL(mark(x0), a__sel(mark(x1), 0)), MARK(sel(x1, 0)))
   MARK(sel(x0, sel(from(z0), x2))) -> c8(A__SEL(mark(x0), a__sel(a__from(mark(z0)), mark(x2))), MARK(sel(from(z0), x2)))
   MARK(sel(x0, sel(sel(z0, z1), x2))) -> c8(A__SEL(mark(x0), a__sel(a__sel(mark(z0), mark(z1)), mark(x2))), MARK(sel(sel(z0, z1), x2)))
   MARK(sel(x0, sel(cons(z0, z1), x2))) -> c8(A__SEL(mark(x0), a__sel(cons(mark(z0), z1), mark(x2))), MARK(sel(cons(z0, z1), x2)))
   MARK(sel(x0, sel(s(z0), x2))) -> c8(A__SEL(mark(x0), a__sel(s(mark(z0)), mark(x2))), MARK(sel(s(z0), x2)))
   MARK(sel(x0, sel(0, x2))) -> c8(A__SEL(mark(x0), a__sel(0, mark(x2))), MARK(sel(0, x2)))
   MARK(sel(from(z0), sel(x1, x2))) -> c8(A__SEL(a__from(mark(z0)), a__sel(mark(x1), mark(x2))), MARK(sel(x1, x2)))
   MARK(sel(sel(z0, z1), sel(x1, x2))) -> c8(A__SEL(a__sel(mark(z0), mark(z1)), a__sel(mark(x1), mark(x2))), MARK(sel(x1, x2)))
   MARK(sel(s(z0), sel(x1, x2))) -> c8(A__SEL(s(mark(z0)), a__sel(mark(x1), mark(x2))), MARK(sel(x1, x2)))
   MARK(sel(0, sel(x1, x2))) -> c8(A__SEL(0, a__sel(mark(x1), mark(x2))), MARK(sel(x1, x2)))
   MARK(sel(x0, sel(x1, x2))) -> c8(MARK(sel(x1, x2)))
   MARK(sel(cons(z0, z1), sel(x1, x2))) -> c8(MARK(sel(x1, x2)))
K tuples:none
Defined Rule Symbols:   a__from_1, a__sel_2, mark_1

Defined Pair Symbols:   A__FROM_1, A__SEL_2, MARK_1

Compound Symbols:   c_1, c2_1, c6_2, c9_1, c10_1, c3_1, c4_1, c7_1, c8_2, c8_1, c3_2, c4_2, c7_2


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

(177) CdtNarrowingProof (BOTH BOUNDS(ID, ID))
Use narrowing to replace MARK(sel(x0, cons(z0, z1))) -> c8(A__SEL(mark(x0), cons(mark(z0), z1)), MARK(cons(z0, z1))) by 
   MARK(sel(x0, cons(from(z0), x2))) -> c8(A__SEL(mark(x0), cons(a__from(mark(z0)), x2)), MARK(cons(from(z0), x2)))
   MARK(sel(x0, cons(sel(z0, z1), x2))) -> c8(A__SEL(mark(x0), cons(a__sel(mark(z0), mark(z1)), x2)), MARK(cons(sel(z0, z1), x2)))
   MARK(sel(x0, cons(cons(z0, z1), x2))) -> c8(A__SEL(mark(x0), cons(cons(mark(z0), z1), x2)), MARK(cons(cons(z0, z1), x2)))
   MARK(sel(x0, cons(s(z0), x2))) -> c8(A__SEL(mark(x0), cons(s(mark(z0)), x2)), MARK(cons(s(z0), x2)))
   MARK(sel(x0, cons(0, x2))) -> c8(A__SEL(mark(x0), cons(0, x2)), MARK(cons(0, x2)))
   MARK(sel(from(z0), cons(x1, x2))) -> c8(A__SEL(a__from(mark(z0)), cons(mark(x1), x2)), MARK(cons(x1, x2)))
   MARK(sel(sel(z0, z1), cons(x1, x2))) -> c8(A__SEL(a__sel(mark(z0), mark(z1)), cons(mark(x1), x2)), MARK(cons(x1, x2)))
   MARK(sel(cons(z0, z1), cons(x1, x2))) -> c8(A__SEL(cons(mark(z0), z1), cons(mark(x1), x2)), MARK(cons(x1, x2)))
   MARK(sel(s(z0), cons(x1, x2))) -> c8(A__SEL(s(mark(z0)), cons(mark(x1), x2)), MARK(cons(x1, x2)))
   MARK(sel(0, cons(x1, x2))) -> c8(A__SEL(0, cons(mark(x1), x2)), MARK(cons(x1, x2)))
   MARK(sel(x0, cons(x1, x2))) -> c8(MARK(cons(x1, x2)))

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

(178)
Obligation:
Complexity Dependency Tuples Problem

Rules:
   a__from(z0) -> cons(mark(z0), from(s(z0)))
   a__from(z0) -> from(z0)
   a__sel(0, cons(z0, z1)) -> mark(z0)
   a__sel(s(z0), cons(z1, z2)) -> a__sel(mark(z0), mark(z2))
   a__sel(z0, z1) -> sel(z0, z1)
   mark(from(z0)) -> a__from(mark(z0))
   mark(sel(z0, z1)) -> a__sel(mark(z0), mark(z1))
   mark(cons(z0, z1)) -> cons(mark(z0), z1)
   mark(s(z0)) -> s(mark(z0))
   mark(0) -> 0
Tuples:
   A__FROM(z0) -> c(MARK(z0))
   A__SEL(0, cons(z0, z1)) -> c2(MARK(z0))
   MARK(from(z0)) -> c6(A__FROM(mark(z0)), MARK(z0))
   MARK(cons(z0, z1)) -> c9(MARK(z0))
   MARK(s(z0)) -> c10(MARK(z0))
   A__SEL(s(x0), cons(x1, s(z0))) -> c3(MARK(x0))
   A__SEL(s(x0), cons(x1, 0)) -> c3(MARK(x0))
   A__SEL(s(cons(z0, z1)), cons(x1, x2)) -> c3(MARK(cons(z0, z1)))
   A__SEL(s(x0), cons(x1, s(z0))) -> c4(MARK(s(z0)))
   A__SEL(s(cons(z0, z1)), cons(x1, x2)) -> c4(MARK(x2))
   MARK(sel(x0, s(z0))) -> c7(MARK(x0))
   MARK(sel(x0, 0)) -> c7(MARK(x0))
   MARK(sel(cons(z0, z1), x1)) -> c7(MARK(cons(z0, z1)))
   MARK(sel(from(z0), x1)) -> c8(A__SEL(a__from(mark(z0)), mark(x1)), MARK(x1))
   MARK(sel(sel(z0, z1), x1)) -> c8(A__SEL(a__sel(mark(z0), mark(z1)), mark(x1)), MARK(x1))
   MARK(sel(s(z0), x1)) -> c8(A__SEL(s(mark(z0)), mark(x1)), MARK(x1))
   MARK(sel(0, x1)) -> c8(A__SEL(0, mark(x1)), MARK(x1))
   MARK(sel(x0, s(z0))) -> c8(MARK(s(z0)))
   MARK(sel(cons(z0, z1), x1)) -> c8(MARK(x1))
   A__SEL(s(x0), cons(x1, from(x2))) -> c3(A__SEL(mark(x0), cons(mark(mark(x2)), from(s(mark(x2))))), MARK(x0))
   A__SEL(s(x0), cons(x1, from(from(z0)))) -> c3(A__SEL(mark(x0), a__from(a__from(mark(z0)))), MARK(x0))
   A__SEL(s(x0), cons(x1, from(sel(z0, z1)))) -> c3(A__SEL(mark(x0), a__from(a__sel(mark(z0), mark(z1)))), MARK(x0))
   A__SEL(s(x0), cons(x1, from(cons(z0, z1)))) -> c3(A__SEL(mark(x0), a__from(cons(mark(z0), z1))), MARK(x0))
   A__SEL(s(x0), cons(x1, from(s(z0)))) -> c3(A__SEL(mark(x0), a__from(s(mark(z0)))), MARK(x0))
   A__SEL(s(x0), cons(x1, from(0))) -> c3(A__SEL(mark(x0), a__from(0)), MARK(x0))
   A__SEL(s(from(z0)), cons(x1, from(x2))) -> c3(A__SEL(a__from(mark(z0)), a__from(mark(x2))), MARK(from(z0)))
   A__SEL(s(sel(z0, z1)), cons(x1, from(x2))) -> c3(A__SEL(a__sel(mark(z0), mark(z1)), a__from(mark(x2))), MARK(sel(z0, z1)))
   A__SEL(s(s(z0)), cons(x1, from(x2))) -> c3(A__SEL(s(mark(z0)), a__from(mark(x2))), MARK(s(z0)))
   A__SEL(s(x0), cons(x1, from(x2))) -> c3(MARK(x0))
   A__SEL(s(cons(z0, z1)), cons(x1, from(x2))) -> c3(MARK(cons(z0, z1)))
   A__SEL(s(0), cons(x1, from(x2))) -> c3(A__SEL(0, a__from(mark(x2))))
   A__SEL(s(x0), cons(x1, sel(x2, from(z0)))) -> c3(A__SEL(mark(x0), a__sel(mark(x2), a__from(mark(z0)))), MARK(x0))
   A__SEL(s(x0), cons(x1, sel(x2, sel(z0, z1)))) -> c3(A__SEL(mark(x0), a__sel(mark(x2), a__sel(mark(z0), mark(z1)))), MARK(x0))
   A__SEL(s(x0), cons(x1, sel(x2, cons(z0, z1)))) -> c3(A__SEL(mark(x0), a__sel(mark(x2), cons(mark(z0), z1))), MARK(x0))
   A__SEL(s(x0), cons(x1, sel(x2, s(z0)))) -> c3(A__SEL(mark(x0), a__sel(mark(x2), s(mark(z0)))), MARK(x0))
   A__SEL(s(x0), cons(x1, sel(x2, 0))) -> c3(A__SEL(mark(x0), a__sel(mark(x2), 0)), MARK(x0))
   A__SEL(s(x0), cons(x1, sel(from(z0), x3))) -> c3(A__SEL(mark(x0), a__sel(a__from(mark(z0)), mark(x3))), MARK(x0))
   A__SEL(s(x0), cons(x1, sel(sel(z0, z1), x3))) -> c3(A__SEL(mark(x0), a__sel(a__sel(mark(z0), mark(z1)), mark(x3))), MARK(x0))
   A__SEL(s(x0), cons(x1, sel(cons(z0, z1), x3))) -> c3(A__SEL(mark(x0), a__sel(cons(mark(z0), z1), mark(x3))), MARK(x0))
   A__SEL(s(x0), cons(x1, sel(s(z0), x3))) -> c3(A__SEL(mark(x0), a__sel(s(mark(z0)), mark(x3))), MARK(x0))
   A__SEL(s(x0), cons(x1, sel(0, x3))) -> c3(A__SEL(mark(x0), a__sel(0, mark(x3))), MARK(x0))
   A__SEL(s(from(z0)), cons(x1, sel(x2, x3))) -> c3(A__SEL(a__from(mark(z0)), a__sel(mark(x2), mark(x3))), MARK(from(z0)))
   A__SEL(s(sel(z0, z1)), cons(x1, sel(x2, x3))) -> c3(A__SEL(a__sel(mark(z0), mark(z1)), a__sel(mark(x2), mark(x3))), MARK(sel(z0, z1)))
   A__SEL(s(s(z0)), cons(x1, sel(x2, x3))) -> c3(A__SEL(s(mark(z0)), a__sel(mark(x2), mark(x3))), MARK(s(z0)))
   A__SEL(s(x0), cons(x1, sel(x2, x3))) -> c3(MARK(x0))
   A__SEL(s(cons(z0, z1)), cons(x1, sel(x2, x3))) -> c3(MARK(cons(z0, z1)))
   A__SEL(s(0), cons(x1, sel(x2, x3))) -> c3(A__SEL(0, a__sel(mark(x2), mark(x3))))
   A__SEL(s(x0), cons(x1, cons(from(z0), x3))) -> c3(A__SEL(mark(x0), cons(a__from(mark(z0)), x3)), MARK(x0))
   A__SEL(s(x0), cons(x1, cons(sel(z0, z1), x3))) -> c3(A__SEL(mark(x0), cons(a__sel(mark(z0), mark(z1)), x3)), MARK(x0))
   A__SEL(s(x0), cons(x1, cons(cons(z0, z1), x3))) -> c3(A__SEL(mark(x0), cons(cons(mark(z0), z1), x3)), MARK(x0))
   A__SEL(s(x0), cons(x1, cons(s(z0), x3))) -> c3(A__SEL(mark(x0), cons(s(mark(z0)), x3)), MARK(x0))
   A__SEL(s(x0), cons(x1, cons(0, x3))) -> c3(A__SEL(mark(x0), cons(0, x3)), MARK(x0))
   A__SEL(s(from(z0)), cons(x1, cons(x2, x3))) -> c3(A__SEL(a__from(mark(z0)), cons(mark(x2), x3)), MARK(from(z0)))
   A__SEL(s(sel(z0, z1)), cons(x1, cons(x2, x3))) -> c3(A__SEL(a__sel(mark(z0), mark(z1)), cons(mark(x2), x3)), MARK(sel(z0, z1)))
   A__SEL(s(s(z0)), cons(x1, cons(x2, x3))) -> c3(A__SEL(s(mark(z0)), cons(mark(x2), x3)), MARK(s(z0)))
   A__SEL(s(cons(z0, z1)), cons(x1, cons(x2, x3))) -> c3(MARK(cons(z0, z1)))
   A__SEL(s(0), cons(x1, cons(x2, x3))) -> c3(A__SEL(0, cons(mark(x2), x3)))
   A__SEL(s(from(from(z0))), cons(x1, x2)) -> c3(A__SEL(a__from(a__from(mark(z0))), mark(x2)), MARK(from(from(z0))))
   A__SEL(s(from(sel(z0, z1))), cons(x1, x2)) -> c3(A__SEL(a__from(a__sel(mark(z0), mark(z1))), mark(x2)), MARK(from(sel(z0, z1))))
   A__SEL(s(from(cons(z0, z1))), cons(x1, x2)) -> c3(A__SEL(a__from(cons(mark(z0), z1)), mark(x2)), MARK(from(cons(z0, z1))))
   A__SEL(s(from(s(z0))), cons(x1, x2)) -> c3(A__SEL(a__from(s(mark(z0))), mark(x2)), MARK(from(s(z0))))
   A__SEL(s(from(0)), cons(x1, x2)) -> c3(A__SEL(a__from(0), mark(x2)), MARK(from(0)))
   A__SEL(s(from(x0)), cons(x1, x2)) -> c3(MARK(from(x0)))
   A__SEL(s(from(x0)), cons(x1, s(z0))) -> c3(MARK(from(x0)))
   A__SEL(s(from(x0)), cons(x1, 0)) -> c3(MARK(from(x0)))
   A__SEL(s(sel(x0, from(z0))), cons(x2, x3)) -> c3(A__SEL(a__sel(mark(x0), a__from(mark(z0))), mark(x3)), MARK(sel(x0, from(z0))))
   A__SEL(s(sel(x0, sel(z0, z1))), cons(x2, x3)) -> c3(A__SEL(a__sel(mark(x0), a__sel(mark(z0), mark(z1))), mark(x3)), MARK(sel(x0, sel(z0, z1))))
   A__SEL(s(sel(x0, cons(z0, z1))), cons(x2, x3)) -> c3(A__SEL(a__sel(mark(x0), cons(mark(z0), z1)), mark(x3)), MARK(sel(x0, cons(z0, z1))))
   A__SEL(s(sel(x0, s(z0))), cons(x2, x3)) -> c3(A__SEL(a__sel(mark(x0), s(mark(z0))), mark(x3)), MARK(sel(x0, s(z0))))
   A__SEL(s(sel(x0, 0)), cons(x2, x3)) -> c3(A__SEL(a__sel(mark(x0), 0), mark(x3)), MARK(sel(x0, 0)))
   A__SEL(s(sel(from(z0), x1)), cons(x2, x3)) -> c3(A__SEL(a__sel(a__from(mark(z0)), mark(x1)), mark(x3)), MARK(sel(from(z0), x1)))
   A__SEL(s(sel(sel(z0, z1), x1)), cons(x2, x3)) -> c3(A__SEL(a__sel(a__sel(mark(z0), mark(z1)), mark(x1)), mark(x3)), MARK(sel(sel(z0, z1), x1)))
   A__SEL(s(sel(cons(z0, z1), x1)), cons(x2, x3)) -> c3(A__SEL(a__sel(cons(mark(z0), z1), mark(x1)), mark(x3)), MARK(sel(cons(z0, z1), x1)))
   A__SEL(s(sel(s(z0), x1)), cons(x2, x3)) -> c3(A__SEL(a__sel(s(mark(z0)), mark(x1)), mark(x3)), MARK(sel(s(z0), x1)))
   A__SEL(s(sel(0, x1)), cons(x2, x3)) -> c3(A__SEL(a__sel(0, mark(x1)), mark(x3)), MARK(sel(0, x1)))
   A__SEL(s(sel(x0, x1)), cons(x2, s(z0))) -> c3(MARK(sel(x0, x1)))
   A__SEL(s(sel(x0, x1)), cons(x2, 0)) -> c3(MARK(sel(x0, x1)))
   A__SEL(s(sel(x0, x1)), cons(x2, x3)) -> c3(MARK(sel(x0, x1)))
   A__SEL(s(s(from(z0))), cons(x1, x2)) -> c3(A__SEL(s(a__from(mark(z0))), mark(x2)), MARK(s(from(z0))))
   A__SEL(s(s(sel(z0, z1))), cons(x1, x2)) -> c3(A__SEL(s(a__sel(mark(z0), mark(z1))), mark(x2)), MARK(s(sel(z0, z1))))
   A__SEL(s(s(cons(z0, z1))), cons(x1, x2)) -> c3(A__SEL(s(cons(mark(z0), z1)), mark(x2)), MARK(s(cons(z0, z1))))
   A__SEL(s(s(s(z0))), cons(x1, x2)) -> c3(A__SEL(s(s(mark(z0))), mark(x2)), MARK(s(s(z0))))
   A__SEL(s(s(0)), cons(x1, x2)) -> c3(A__SEL(s(0), mark(x2)), MARK(s(0)))
   A__SEL(s(s(x0)), cons(x1, x2)) -> c3(MARK(s(x0)))
   A__SEL(s(s(x0)), cons(x1, s(z0))) -> c3(MARK(s(x0)))
   A__SEL(s(s(x0)), cons(x1, 0)) -> c3(MARK(s(x0)))
   A__SEL(s(x0), cons(x1, from(x2))) -> c4(A__SEL(mark(x0), cons(mark(mark(x2)), from(s(mark(x2))))), MARK(from(x2)))
   A__SEL(s(x0), cons(x1, from(from(z0)))) -> c4(A__SEL(mark(x0), a__from(a__from(mark(z0)))), MARK(from(from(z0))))
   A__SEL(s(x0), cons(x1, from(sel(z0, z1)))) -> c4(A__SEL(mark(x0), a__from(a__sel(mark(z0), mark(z1)))), MARK(from(sel(z0, z1))))
   A__SEL(s(x0), cons(x1, from(cons(z0, z1)))) -> c4(A__SEL(mark(x0), a__from(cons(mark(z0), z1))), MARK(from(cons(z0, z1))))
   A__SEL(s(x0), cons(x1, from(s(z0)))) -> c4(A__SEL(mark(x0), a__from(s(mark(z0)))), MARK(from(s(z0))))
   A__SEL(s(x0), cons(x1, from(0))) -> c4(A__SEL(mark(x0), a__from(0)), MARK(from(0)))
   A__SEL(s(from(z0)), cons(x1, from(x2))) -> c4(A__SEL(a__from(mark(z0)), a__from(mark(x2))), MARK(from(x2)))
   A__SEL(s(sel(z0, z1)), cons(x1, from(x2))) -> c4(A__SEL(a__sel(mark(z0), mark(z1)), a__from(mark(x2))), MARK(from(x2)))
   A__SEL(s(s(z0)), cons(x1, from(x2))) -> c4(A__SEL(s(mark(z0)), a__from(mark(x2))), MARK(from(x2)))
   A__SEL(s(0), cons(x1, from(x2))) -> c4(A__SEL(0, a__from(mark(x2))), MARK(from(x2)))
   A__SEL(s(x0), cons(x1, from(x2))) -> c4(MARK(from(x2)))
   A__SEL(s(cons(z0, z1)), cons(x1, from(x2))) -> c4(MARK(from(x2)))
   A__SEL(s(x0), cons(x1, sel(x2, from(z0)))) -> c4(A__SEL(mark(x0), a__sel(mark(x2), a__from(mark(z0)))), MARK(sel(x2, from(z0))))
   A__SEL(s(x0), cons(x1, sel(x2, sel(z0, z1)))) -> c4(A__SEL(mark(x0), a__sel(mark(x2), a__sel(mark(z0), mark(z1)))), MARK(sel(x2, sel(z0, z1))))
   A__SEL(s(x0), cons(x1, sel(x2, cons(z0, z1)))) -> c4(A__SEL(mark(x0), a__sel(mark(x2), cons(mark(z0), z1))), MARK(sel(x2, cons(z0, z1))))
   A__SEL(s(x0), cons(x1, sel(x2, s(z0)))) -> c4(A__SEL(mark(x0), a__sel(mark(x2), s(mark(z0)))), MARK(sel(x2, s(z0))))
   A__SEL(s(x0), cons(x1, sel(x2, 0))) -> c4(A__SEL(mark(x0), a__sel(mark(x2), 0)), MARK(sel(x2, 0)))
   A__SEL(s(x0), cons(x1, sel(from(z0), x3))) -> c4(A__SEL(mark(x0), a__sel(a__from(mark(z0)), mark(x3))), MARK(sel(from(z0), x3)))
   A__SEL(s(x0), cons(x1, sel(sel(z0, z1), x3))) -> c4(A__SEL(mark(x0), a__sel(a__sel(mark(z0), mark(z1)), mark(x3))), MARK(sel(sel(z0, z1), x3)))
   A__SEL(s(x0), cons(x1, sel(cons(z0, z1), x3))) -> c4(A__SEL(mark(x0), a__sel(cons(mark(z0), z1), mark(x3))), MARK(sel(cons(z0, z1), x3)))
   A__SEL(s(x0), cons(x1, sel(s(z0), x3))) -> c4(A__SEL(mark(x0), a__sel(s(mark(z0)), mark(x3))), MARK(sel(s(z0), x3)))
   A__SEL(s(x0), cons(x1, sel(0, x3))) -> c4(A__SEL(mark(x0), a__sel(0, mark(x3))), MARK(sel(0, x3)))
   A__SEL(s(from(z0)), cons(x1, sel(x2, x3))) -> c4(A__SEL(a__from(mark(z0)), a__sel(mark(x2), mark(x3))), MARK(sel(x2, x3)))
   A__SEL(s(sel(z0, z1)), cons(x1, sel(x2, x3))) -> c4(A__SEL(a__sel(mark(z0), mark(z1)), a__sel(mark(x2), mark(x3))), MARK(sel(x2, x3)))
   A__SEL(s(s(z0)), cons(x1, sel(x2, x3))) -> c4(A__SEL(s(mark(z0)), a__sel(mark(x2), mark(x3))), MARK(sel(x2, x3)))
   A__SEL(s(0), cons(x1, sel(x2, x3))) -> c4(A__SEL(0, a__sel(mark(x2), mark(x3))), MARK(sel(x2, x3)))
   A__SEL(s(x0), cons(x1, sel(x2, x3))) -> c4(MARK(sel(x2, x3)))
   A__SEL(s(cons(z0, z1)), cons(x1, sel(x2, x3))) -> c4(MARK(sel(x2, x3)))
   A__SEL(s(x0), cons(x1, cons(from(z0), x3))) -> c4(A__SEL(mark(x0), cons(a__from(mark(z0)), x3)), MARK(cons(from(z0), x3)))
   A__SEL(s(x0), cons(x1, cons(sel(z0, z1), x3))) -> c4(A__SEL(mark(x0), cons(a__sel(mark(z0), mark(z1)), x3)), MARK(cons(sel(z0, z1), x3)))
   A__SEL(s(x0), cons(x1, cons(cons(z0, z1), x3))) -> c4(A__SEL(mark(x0), cons(cons(mark(z0), z1), x3)), MARK(cons(cons(z0, z1), x3)))
   A__SEL(s(x0), cons(x1, cons(s(z0), x3))) -> c4(A__SEL(mark(x0), cons(s(mark(z0)), x3)), MARK(cons(s(z0), x3)))
   A__SEL(s(x0), cons(x1, cons(0, x3))) -> c4(A__SEL(mark(x0), cons(0, x3)), MARK(cons(0, x3)))
   A__SEL(s(from(z0)), cons(x1, cons(x2, x3))) -> c4(A__SEL(a__from(mark(z0)), cons(mark(x2), x3)), MARK(cons(x2, x3)))
   A__SEL(s(sel(z0, z1)), cons(x1, cons(x2, x3))) -> c4(A__SEL(a__sel(mark(z0), mark(z1)), cons(mark(x2), x3)), MARK(cons(x2, x3)))
   A__SEL(s(s(z0)), cons(x1, cons(x2, x3))) -> c4(A__SEL(s(mark(z0)), cons(mark(x2), x3)), MARK(cons(x2, x3)))
   A__SEL(s(0), cons(x1, cons(x2, x3))) -> c4(A__SEL(0, cons(mark(x2), x3)), MARK(cons(x2, x3)))
   A__SEL(s(x0), cons(x1, cons(x2, x3))) -> c4(MARK(cons(x2, x3)))
   A__SEL(s(cons(z0, z1)), cons(x1, cons(x2, x3))) -> c4(MARK(cons(x2, x3)))
   A__SEL(s(from(from(z0))), cons(x1, x2)) -> c4(A__SEL(a__from(a__from(mark(z0))), mark(x2)), MARK(x2))
   A__SEL(s(from(sel(z0, z1))), cons(x1, x2)) -> c4(A__SEL(a__from(a__sel(mark(z0), mark(z1))), mark(x2)), MARK(x2))
   A__SEL(s(from(cons(z0, z1))), cons(x1, x2)) -> c4(A__SEL(a__from(cons(mark(z0), z1)), mark(x2)), MARK(x2))
   A__SEL(s(from(s(z0))), cons(x1, x2)) -> c4(A__SEL(a__from(s(mark(z0))), mark(x2)), MARK(x2))
   A__SEL(s(from(0)), cons(x1, x2)) -> c4(A__SEL(a__from(0), mark(x2)), MARK(x2))
   A__SEL(s(from(x0)), cons(x1, s(z0))) -> c4(MARK(s(z0)))
   A__SEL(s(from(x0)), cons(x1, x2)) -> c4(MARK(x2))
   A__SEL(s(sel(x0, from(z0))), cons(x2, x3)) -> c4(A__SEL(a__sel(mark(x0), a__from(mark(z0))), mark(x3)), MARK(x3))
   A__SEL(s(sel(x0, sel(z0, z1))), cons(x2, x3)) -> c4(A__SEL(a__sel(mark(x0), a__sel(mark(z0), mark(z1))), mark(x3)), MARK(x3))
   A__SEL(s(sel(x0, cons(z0, z1))), cons(x2, x3)) -> c4(A__SEL(a__sel(mark(x0), cons(mark(z0), z1)), mark(x3)), MARK(x3))
   A__SEL(s(sel(x0, s(z0))), cons(x2, x3)) -> c4(A__SEL(a__sel(mark(x0), s(mark(z0))), mark(x3)), MARK(x3))
   A__SEL(s(sel(x0, 0)), cons(x2, x3)) -> c4(A__SEL(a__sel(mark(x0), 0), mark(x3)), MARK(x3))
   A__SEL(s(sel(from(z0), x1)), cons(x2, x3)) -> c4(A__SEL(a__sel(a__from(mark(z0)), mark(x1)), mark(x3)), MARK(x3))
   A__SEL(s(sel(sel(z0, z1), x1)), cons(x2, x3)) -> c4(A__SEL(a__sel(a__sel(mark(z0), mark(z1)), mark(x1)), mark(x3)), MARK(x3))
   A__SEL(s(sel(cons(z0, z1), x1)), cons(x2, x3)) -> c4(A__SEL(a__sel(cons(mark(z0), z1), mark(x1)), mark(x3)), MARK(x3))
   A__SEL(s(sel(s(z0), x1)), cons(x2, x3)) -> c4(A__SEL(a__sel(s(mark(z0)), mark(x1)), mark(x3)), MARK(x3))
   A__SEL(s(sel(0, x1)), cons(x2, x3)) -> c4(A__SEL(a__sel(0, mark(x1)), mark(x3)), MARK(x3))
   A__SEL(s(sel(x0, x1)), cons(x2, s(z0))) -> c4(MARK(s(z0)))
   A__SEL(s(sel(x0, x1)), cons(x2, x3)) -> c4(MARK(x3))
   A__SEL(s(s(from(z0))), cons(x1, x2)) -> c4(A__SEL(s(a__from(mark(z0))), mark(x2)), MARK(x2))
   A__SEL(s(s(sel(z0, z1))), cons(x1, x2)) -> c4(A__SEL(s(a__sel(mark(z0), mark(z1))), mark(x2)), MARK(x2))
   A__SEL(s(s(cons(z0, z1))), cons(x1, x2)) -> c4(A__SEL(s(cons(mark(z0), z1)), mark(x2)), MARK(x2))
   A__SEL(s(s(s(z0))), cons(x1, x2)) -> c4(A__SEL(s(s(mark(z0))), mark(x2)), MARK(x2))
   A__SEL(s(s(0)), cons(x1, x2)) -> c4(A__SEL(s(0), mark(x2)), MARK(x2))
   A__SEL(s(s(x0)), cons(x1, s(z0))) -> c4(MARK(s(z0)))
   A__SEL(s(0), cons(x0, s(z0))) -> c4(MARK(s(z0)))
   MARK(sel(x0, from(x1))) -> c7(A__SEL(mark(x0), cons(mark(mark(x1)), from(s(mark(x1))))), MARK(x0))
   MARK(sel(x0, from(from(z0)))) -> c7(A__SEL(mark(x0), a__from(a__from(mark(z0)))), MARK(x0))
   MARK(sel(x0, from(sel(z0, z1)))) -> c7(A__SEL(mark(x0), a__from(a__sel(mark(z0), mark(z1)))), MARK(x0))
   MARK(sel(x0, from(cons(z0, z1)))) -> c7(A__SEL(mark(x0), a__from(cons(mark(z0), z1))), MARK(x0))
   MARK(sel(x0, from(s(z0)))) -> c7(A__SEL(mark(x0), a__from(s(mark(z0)))), MARK(x0))
   MARK(sel(x0, from(0))) -> c7(A__SEL(mark(x0), a__from(0)), MARK(x0))
   MARK(sel(from(z0), from(x1))) -> c7(A__SEL(a__from(mark(z0)), a__from(mark(x1))), MARK(from(z0)))
   MARK(sel(sel(z0, z1), from(x1))) -> c7(A__SEL(a__sel(mark(z0), mark(z1)), a__from(mark(x1))), MARK(sel(z0, z1)))
   MARK(sel(s(z0), from(x1))) -> c7(A__SEL(s(mark(z0)), a__from(mark(x1))), MARK(s(z0)))
   MARK(sel(x0, from(x1))) -> c7(MARK(x0))
   MARK(sel(cons(z0, z1), from(x1))) -> c7(MARK(cons(z0, z1)))
   MARK(sel(0, from(x1))) -> c7(A__SEL(0, a__from(mark(x1))))
   MARK(sel(x0, sel(x1, from(z0)))) -> c7(A__SEL(mark(x0), a__sel(mark(x1), a__from(mark(z0)))), MARK(x0))
   MARK(sel(x0, sel(x1, sel(z0, z1)))) -> c7(A__SEL(mark(x0), a__sel(mark(x1), a__sel(mark(z0), mark(z1)))), MARK(x0))
   MARK(sel(x0, sel(x1, cons(z0, z1)))) -> c7(A__SEL(mark(x0), a__sel(mark(x1), cons(mark(z0), z1))), MARK(x0))
   MARK(sel(x0, sel(x1, s(z0)))) -> c7(A__SEL(mark(x0), a__sel(mark(x1), s(mark(z0)))), MARK(x0))
   MARK(sel(x0, sel(x1, 0))) -> c7(A__SEL(mark(x0), a__sel(mark(x1), 0)), MARK(x0))
   MARK(sel(x0, sel(from(z0), x2))) -> c7(A__SEL(mark(x0), a__sel(a__from(mark(z0)), mark(x2))), MARK(x0))
   MARK(sel(x0, sel(sel(z0, z1), x2))) -> c7(A__SEL(mark(x0), a__sel(a__sel(mark(z0), mark(z1)), mark(x2))), MARK(x0))
   MARK(sel(x0, sel(cons(z0, z1), x2))) -> c7(A__SEL(mark(x0), a__sel(cons(mark(z0), z1), mark(x2))), MARK(x0))
   MARK(sel(x0, sel(s(z0), x2))) -> c7(A__SEL(mark(x0), a__sel(s(mark(z0)), mark(x2))), MARK(x0))
   MARK(sel(x0, sel(0, x2))) -> c7(A__SEL(mark(x0), a__sel(0, mark(x2))), MARK(x0))
   MARK(sel(from(z0), sel(x1, x2))) -> c7(A__SEL(a__from(mark(z0)), a__sel(mark(x1), mark(x2))), MARK(from(z0)))
   MARK(sel(sel(z0, z1), sel(x1, x2))) -> c7(A__SEL(a__sel(mark(z0), mark(z1)), a__sel(mark(x1), mark(x2))), MARK(sel(z0, z1)))
   MARK(sel(s(z0), sel(x1, x2))) -> c7(A__SEL(s(mark(z0)), a__sel(mark(x1), mark(x2))), MARK(s(z0)))
   MARK(sel(x0, sel(x1, x2))) -> c7(MARK(x0))
   MARK(sel(cons(z0, z1), sel(x1, x2))) -> c7(MARK(cons(z0, z1)))
   MARK(sel(0, sel(x1, x2))) -> c7(A__SEL(0, a__sel(mark(x1), mark(x2))))
   MARK(sel(x0, cons(from(z0), x2))) -> c7(A__SEL(mark(x0), cons(a__from(mark(z0)), x2)), MARK(x0))
   MARK(sel(x0, cons(sel(z0, z1), x2))) -> c7(A__SEL(mark(x0), cons(a__sel(mark(z0), mark(z1)), x2)), MARK(x0))
   MARK(sel(x0, cons(cons(z0, z1), x2))) -> c7(A__SEL(mark(x0), cons(cons(mark(z0), z1), x2)), MARK(x0))
   MARK(sel(x0, cons(s(z0), x2))) -> c7(A__SEL(mark(x0), cons(s(mark(z0)), x2)), MARK(x0))
   MARK(sel(x0, cons(0, x2))) -> c7(A__SEL(mark(x0), cons(0, x2)), MARK(x0))
   MARK(sel(from(z0), cons(x1, x2))) -> c7(A__SEL(a__from(mark(z0)), cons(mark(x1), x2)), MARK(from(z0)))
   MARK(sel(sel(z0, z1), cons(x1, x2))) -> c7(A__SEL(a__sel(mark(z0), mark(z1)), cons(mark(x1), x2)), MARK(sel(z0, z1)))
   MARK(sel(s(z0), cons(x1, x2))) -> c7(A__SEL(s(mark(z0)), cons(mark(x1), x2)), MARK(s(z0)))
   MARK(sel(cons(z0, z1), cons(x1, x2))) -> c7(MARK(cons(z0, z1)))
   MARK(sel(0, cons(x1, x2))) -> c7(A__SEL(0, cons(mark(x1), x2)))
   MARK(sel(from(from(z0)), x1)) -> c7(A__SEL(a__from(a__from(mark(z0))), mark(x1)), MARK(from(from(z0))))
   MARK(sel(from(sel(z0, z1)), x1)) -> c7(A__SEL(a__from(a__sel(mark(z0), mark(z1))), mark(x1)), MARK(from(sel(z0, z1))))
   MARK(sel(from(cons(z0, z1)), x1)) -> c7(A__SEL(a__from(cons(mark(z0), z1)), mark(x1)), MARK(from(cons(z0, z1))))
   MARK(sel(from(s(z0)), x1)) -> c7(A__SEL(a__from(s(mark(z0))), mark(x1)), MARK(from(s(z0))))
   MARK(sel(from(0), x1)) -> c7(A__SEL(a__from(0), mark(x1)), MARK(from(0)))
   MARK(sel(from(x0), x1)) -> c7(MARK(from(x0)))
   MARK(sel(from(x0), s(z0))) -> c7(MARK(from(x0)))
   MARK(sel(from(x0), 0)) -> c7(MARK(from(x0)))
   MARK(sel(sel(x0, from(z0)), x2)) -> c7(A__SEL(a__sel(mark(x0), a__from(mark(z0))), mark(x2)), MARK(sel(x0, from(z0))))
   MARK(sel(sel(x0, sel(z0, z1)), x2)) -> c7(A__SEL(a__sel(mark(x0), a__sel(mark(z0), mark(z1))), mark(x2)), MARK(sel(x0, sel(z0, z1))))
   MARK(sel(sel(x0, cons(z0, z1)), x2)) -> c7(A__SEL(a__sel(mark(x0), cons(mark(z0), z1)), mark(x2)), MARK(sel(x0, cons(z0, z1))))
   MARK(sel(sel(x0, s(z0)), x2)) -> c7(A__SEL(a__sel(mark(x0), s(mark(z0))), mark(x2)), MARK(sel(x0, s(z0))))
   MARK(sel(sel(x0, 0), x2)) -> c7(A__SEL(a__sel(mark(x0), 0), mark(x2)), MARK(sel(x0, 0)))
   MARK(sel(sel(from(z0), x1), x2)) -> c7(A__SEL(a__sel(a__from(mark(z0)), mark(x1)), mark(x2)), MARK(sel(from(z0), x1)))
   MARK(sel(sel(sel(z0, z1), x1), x2)) -> c7(A__SEL(a__sel(a__sel(mark(z0), mark(z1)), mark(x1)), mark(x2)), MARK(sel(sel(z0, z1), x1)))
   MARK(sel(sel(cons(z0, z1), x1), x2)) -> c7(A__SEL(a__sel(cons(mark(z0), z1), mark(x1)), mark(x2)), MARK(sel(cons(z0, z1), x1)))
   MARK(sel(sel(s(z0), x1), x2)) -> c7(A__SEL(a__sel(s(mark(z0)), mark(x1)), mark(x2)), MARK(sel(s(z0), x1)))
   MARK(sel(sel(0, x1), x2)) -> c7(A__SEL(a__sel(0, mark(x1)), mark(x2)), MARK(sel(0, x1)))
   MARK(sel(sel(x0, x1), s(z0))) -> c7(MARK(sel(x0, x1)))
   MARK(sel(sel(x0, x1), 0)) -> c7(MARK(sel(x0, x1)))
   MARK(sel(sel(x0, x1), x2)) -> c7(MARK(sel(x0, x1)))
   MARK(sel(s(from(z0)), x1)) -> c7(A__SEL(s(a__from(mark(z0))), mark(x1)), MARK(s(from(z0))))
   MARK(sel(s(sel(z0, z1)), x1)) -> c7(A__SEL(s(a__sel(mark(z0), mark(z1))), mark(x1)), MARK(s(sel(z0, z1))))
   MARK(sel(s(cons(z0, z1)), x1)) -> c7(A__SEL(s(cons(mark(z0), z1)), mark(x1)), MARK(s(cons(z0, z1))))
   MARK(sel(s(s(z0)), x1)) -> c7(A__SEL(s(s(mark(z0))), mark(x1)), MARK(s(s(z0))))
   MARK(sel(s(0), x1)) -> c7(A__SEL(s(0), mark(x1)), MARK(s(0)))
   MARK(sel(s(x0), x1)) -> c7(MARK(s(x0)))
   MARK(sel(s(x0), s(z0))) -> c7(MARK(s(x0)))
   MARK(sel(s(x0), 0)) -> c7(MARK(s(x0)))
   MARK(sel(x0, from(x1))) -> c8(A__SEL(mark(x0), cons(mark(mark(x1)), from(s(mark(x1))))), MARK(from(x1)))
   MARK(sel(x0, from(from(z0)))) -> c8(A__SEL(mark(x0), a__from(a__from(mark(z0)))), MARK(from(from(z0))))
   MARK(sel(x0, from(sel(z0, z1)))) -> c8(A__SEL(mark(x0), a__from(a__sel(mark(z0), mark(z1)))), MARK(from(sel(z0, z1))))
   MARK(sel(x0, from(cons(z0, z1)))) -> c8(A__SEL(mark(x0), a__from(cons(mark(z0), z1))), MARK(from(cons(z0, z1))))
   MARK(sel(x0, from(s(z0)))) -> c8(A__SEL(mark(x0), a__from(s(mark(z0)))), MARK(from(s(z0))))
   MARK(sel(x0, from(0))) -> c8(A__SEL(mark(x0), a__from(0)), MARK(from(0)))
   MARK(sel(from(z0), from(x1))) -> c8(A__SEL(a__from(mark(z0)), a__from(mark(x1))), MARK(from(x1)))
   MARK(sel(sel(z0, z1), from(x1))) -> c8(A__SEL(a__sel(mark(z0), mark(z1)), a__from(mark(x1))), MARK(from(x1)))
   MARK(sel(s(z0), from(x1))) -> c8(A__SEL(s(mark(z0)), a__from(mark(x1))), MARK(from(x1)))
   MARK(sel(0, from(x1))) -> c8(A__SEL(0, a__from(mark(x1))), MARK(from(x1)))
   MARK(sel(x0, from(x1))) -> c8(MARK(from(x1)))
   MARK(sel(cons(z0, z1), from(x1))) -> c8(MARK(from(x1)))
   MARK(sel(x0, sel(x1, from(z0)))) -> c8(A__SEL(mark(x0), a__sel(mark(x1), a__from(mark(z0)))), MARK(sel(x1, from(z0))))
   MARK(sel(x0, sel(x1, sel(z0, z1)))) -> c8(A__SEL(mark(x0), a__sel(mark(x1), a__sel(mark(z0), mark(z1)))), MARK(sel(x1, sel(z0, z1))))
   MARK(sel(x0, sel(x1, cons(z0, z1)))) -> c8(A__SEL(mark(x0), a__sel(mark(x1), cons(mark(z0), z1))), MARK(sel(x1, cons(z0, z1))))
   MARK(sel(x0, sel(x1, s(z0)))) -> c8(A__SEL(mark(x0), a__sel(mark(x1), s(mark(z0)))), MARK(sel(x1, s(z0))))
   MARK(sel(x0, sel(x1, 0))) -> c8(A__SEL(mark(x0), a__sel(mark(x1), 0)), MARK(sel(x1, 0)))
   MARK(sel(x0, sel(from(z0), x2))) -> c8(A__SEL(mark(x0), a__sel(a__from(mark(z0)), mark(x2))), MARK(sel(from(z0), x2)))
   MARK(sel(x0, sel(sel(z0, z1), x2))) -> c8(A__SEL(mark(x0), a__sel(a__sel(mark(z0), mark(z1)), mark(x2))), MARK(sel(sel(z0, z1), x2)))
   MARK(sel(x0, sel(cons(z0, z1), x2))) -> c8(A__SEL(mark(x0), a__sel(cons(mark(z0), z1), mark(x2))), MARK(sel(cons(z0, z1), x2)))
   MARK(sel(x0, sel(s(z0), x2))) -> c8(A__SEL(mark(x0), a__sel(s(mark(z0)), mark(x2))), MARK(sel(s(z0), x2)))
   MARK(sel(x0, sel(0, x2))) -> c8(A__SEL(mark(x0), a__sel(0, mark(x2))), MARK(sel(0, x2)))
   MARK(sel(from(z0), sel(x1, x2))) -> c8(A__SEL(a__from(mark(z0)), a__sel(mark(x1), mark(x2))), MARK(sel(x1, x2)))
   MARK(sel(sel(z0, z1), sel(x1, x2))) -> c8(A__SEL(a__sel(mark(z0), mark(z1)), a__sel(mark(x1), mark(x2))), MARK(sel(x1, x2)))
   MARK(sel(s(z0), sel(x1, x2))) -> c8(A__SEL(s(mark(z0)), a__sel(mark(x1), mark(x2))), MARK(sel(x1, x2)))
   MARK(sel(0, sel(x1, x2))) -> c8(A__SEL(0, a__sel(mark(x1), mark(x2))), MARK(sel(x1, x2)))
   MARK(sel(x0, sel(x1, x2))) -> c8(MARK(sel(x1, x2)))
   MARK(sel(cons(z0, z1), sel(x1, x2))) -> c8(MARK(sel(x1, x2)))
   MARK(sel(x0, cons(from(z0), x2))) -> c8(A__SEL(mark(x0), cons(a__from(mark(z0)), x2)), MARK(cons(from(z0), x2)))
   MARK(sel(x0, cons(sel(z0, z1), x2))) -> c8(A__SEL(mark(x0), cons(a__sel(mark(z0), mark(z1)), x2)), MARK(cons(sel(z0, z1), x2)))
   MARK(sel(x0, cons(cons(z0, z1), x2))) -> c8(A__SEL(mark(x0), cons(cons(mark(z0), z1), x2)), MARK(cons(cons(z0, z1), x2)))
   MARK(sel(x0, cons(s(z0), x2))) -> c8(A__SEL(mark(x0), cons(s(mark(z0)), x2)), MARK(cons(s(z0), x2)))
   MARK(sel(x0, cons(0, x2))) -> c8(A__SEL(mark(x0), cons(0, x2)), MARK(cons(0, x2)))
   MARK(sel(from(z0), cons(x1, x2))) -> c8(A__SEL(a__from(mark(z0)), cons(mark(x1), x2)), MARK(cons(x1, x2)))
   MARK(sel(sel(z0, z1), cons(x1, x2))) -> c8(A__SEL(a__sel(mark(z0), mark(z1)), cons(mark(x1), x2)), MARK(cons(x1, x2)))
   MARK(sel(cons(z0, z1), cons(x1, x2))) -> c8(A__SEL(cons(mark(z0), z1), cons(mark(x1), x2)), MARK(cons(x1, x2)))
   MARK(sel(s(z0), cons(x1, x2))) -> c8(A__SEL(s(mark(z0)), cons(mark(x1), x2)), MARK(cons(x1, x2)))
   MARK(sel(0, cons(x1, x2))) -> c8(A__SEL(0, cons(mark(x1), x2)), MARK(cons(x1, x2)))
   MARK(sel(x0, cons(x1, x2))) -> c8(MARK(cons(x1, x2)))
S tuples:
   A__FROM(z0) -> c(MARK(z0))
   A__SEL(0, cons(z0, z1)) -> c2(MARK(z0))
   MARK(from(z0)) -> c6(A__FROM(mark(z0)), MARK(z0))
   MARK(cons(z0, z1)) -> c9(MARK(z0))
   MARK(s(z0)) -> c10(MARK(z0))
   A__SEL(s(x0), cons(x1, s(z0))) -> c3(MARK(x0))
   A__SEL(s(x0), cons(x1, 0)) -> c3(MARK(x0))
   A__SEL(s(cons(z0, z1)), cons(x1, x2)) -> c3(MARK(cons(z0, z1)))
   A__SEL(s(x0), cons(x1, s(z0))) -> c4(MARK(s(z0)))
   A__SEL(s(cons(z0, z1)), cons(x1, x2)) -> c4(MARK(x2))
   MARK(sel(x0, s(z0))) -> c7(MARK(x0))
   MARK(sel(x0, 0)) -> c7(MARK(x0))
   MARK(sel(cons(z0, z1), x1)) -> c7(MARK(cons(z0, z1)))
   MARK(sel(from(z0), x1)) -> c8(A__SEL(a__from(mark(z0)), mark(x1)), MARK(x1))
   MARK(sel(sel(z0, z1), x1)) -> c8(A__SEL(a__sel(mark(z0), mark(z1)), mark(x1)), MARK(x1))
   MARK(sel(s(z0), x1)) -> c8(A__SEL(s(mark(z0)), mark(x1)), MARK(x1))
   MARK(sel(0, x1)) -> c8(A__SEL(0, mark(x1)), MARK(x1))
   MARK(sel(x0, s(z0))) -> c8(MARK(s(z0)))
   MARK(sel(cons(z0, z1), x1)) -> c8(MARK(x1))
   A__SEL(s(x0), cons(x1, from(x2))) -> c3(A__SEL(mark(x0), cons(mark(mark(x2)), from(s(mark(x2))))), MARK(x0))
   A__SEL(s(x0), cons(x1, from(from(z0)))) -> c3(A__SEL(mark(x0), a__from(a__from(mark(z0)))), MARK(x0))
   A__SEL(s(x0), cons(x1, from(sel(z0, z1)))) -> c3(A__SEL(mark(x0), a__from(a__sel(mark(z0), mark(z1)))), MARK(x0))
   A__SEL(s(x0), cons(x1, from(cons(z0, z1)))) -> c3(A__SEL(mark(x0), a__from(cons(mark(z0), z1))), MARK(x0))
   A__SEL(s(x0), cons(x1, from(s(z0)))) -> c3(A__SEL(mark(x0), a__from(s(mark(z0)))), MARK(x0))
   A__SEL(s(x0), cons(x1, from(0))) -> c3(A__SEL(mark(x0), a__from(0)), MARK(x0))
   A__SEL(s(from(z0)), cons(x1, from(x2))) -> c3(A__SEL(a__from(mark(z0)), a__from(mark(x2))), MARK(from(z0)))
   A__SEL(s(sel(z0, z1)), cons(x1, from(x2))) -> c3(A__SEL(a__sel(mark(z0), mark(z1)), a__from(mark(x2))), MARK(sel(z0, z1)))
   A__SEL(s(s(z0)), cons(x1, from(x2))) -> c3(A__SEL(s(mark(z0)), a__from(mark(x2))), MARK(s(z0)))
   A__SEL(s(x0), cons(x1, from(x2))) -> c3(MARK(x0))
   A__SEL(s(cons(z0, z1)), cons(x1, from(x2))) -> c3(MARK(cons(z0, z1)))
   A__SEL(s(0), cons(x1, from(x2))) -> c3(A__SEL(0, a__from(mark(x2))))
   A__SEL(s(x0), cons(x1, sel(x2, from(z0)))) -> c3(A__SEL(mark(x0), a__sel(mark(x2), a__from(mark(z0)))), MARK(x0))
   A__SEL(s(x0), cons(x1, sel(x2, sel(z0, z1)))) -> c3(A__SEL(mark(x0), a__sel(mark(x2), a__sel(mark(z0), mark(z1)))), MARK(x0))
   A__SEL(s(x0), cons(x1, sel(x2, cons(z0, z1)))) -> c3(A__SEL(mark(x0), a__sel(mark(x2), cons(mark(z0), z1))), MARK(x0))
   A__SEL(s(x0), cons(x1, sel(x2, s(z0)))) -> c3(A__SEL(mark(x0), a__sel(mark(x2), s(mark(z0)))), MARK(x0))
   A__SEL(s(x0), cons(x1, sel(x2, 0))) -> c3(A__SEL(mark(x0), a__sel(mark(x2), 0)), MARK(x0))
   A__SEL(s(x0), cons(x1, sel(from(z0), x3))) -> c3(A__SEL(mark(x0), a__sel(a__from(mark(z0)), mark(x3))), MARK(x0))
   A__SEL(s(x0), cons(x1, sel(sel(z0, z1), x3))) -> c3(A__SEL(mark(x0), a__sel(a__sel(mark(z0), mark(z1)), mark(x3))), MARK(x0))
   A__SEL(s(x0), cons(x1, sel(cons(z0, z1), x3))) -> c3(A__SEL(mark(x0), a__sel(cons(mark(z0), z1), mark(x3))), MARK(x0))
   A__SEL(s(x0), cons(x1, sel(s(z0), x3))) -> c3(A__SEL(mark(x0), a__sel(s(mark(z0)), mark(x3))), MARK(x0))
   A__SEL(s(x0), cons(x1, sel(0, x3))) -> c3(A__SEL(mark(x0), a__sel(0, mark(x3))), MARK(x0))
   A__SEL(s(from(z0)), cons(x1, sel(x2, x3))) -> c3(A__SEL(a__from(mark(z0)), a__sel(mark(x2), mark(x3))), MARK(from(z0)))
   A__SEL(s(sel(z0, z1)), cons(x1, sel(x2, x3))) -> c3(A__SEL(a__sel(mark(z0), mark(z1)), a__sel(mark(x2), mark(x3))), MARK(sel(z0, z1)))
   A__SEL(s(s(z0)), cons(x1, sel(x2, x3))) -> c3(A__SEL(s(mark(z0)), a__sel(mark(x2), mark(x3))), MARK(s(z0)))
   A__SEL(s(x0), cons(x1, sel(x2, x3))) -> c3(MARK(x0))
   A__SEL(s(cons(z0, z1)), cons(x1, sel(x2, x3))) -> c3(MARK(cons(z0, z1)))
   A__SEL(s(0), cons(x1, sel(x2, x3))) -> c3(A__SEL(0, a__sel(mark(x2), mark(x3))))
   A__SEL(s(x0), cons(x1, cons(from(z0), x3))) -> c3(A__SEL(mark(x0), cons(a__from(mark(z0)), x3)), MARK(x0))
   A__SEL(s(x0), cons(x1, cons(sel(z0, z1), x3))) -> c3(A__SEL(mark(x0), cons(a__sel(mark(z0), mark(z1)), x3)), MARK(x0))
   A__SEL(s(x0), cons(x1, cons(cons(z0, z1), x3))) -> c3(A__SEL(mark(x0), cons(cons(mark(z0), z1), x3)), MARK(x0))
   A__SEL(s(x0), cons(x1, cons(s(z0), x3))) -> c3(A__SEL(mark(x0), cons(s(mark(z0)), x3)), MARK(x0))
   A__SEL(s(x0), cons(x1, cons(0, x3))) -> c3(A__SEL(mark(x0), cons(0, x3)), MARK(x0))
   A__SEL(s(from(z0)), cons(x1, cons(x2, x3))) -> c3(A__SEL(a__from(mark(z0)), cons(mark(x2), x3)), MARK(from(z0)))
   A__SEL(s(sel(z0, z1)), cons(x1, cons(x2, x3))) -> c3(A__SEL(a__sel(mark(z0), mark(z1)), cons(mark(x2), x3)), MARK(sel(z0, z1)))
   A__SEL(s(s(z0)), cons(x1, cons(x2, x3))) -> c3(A__SEL(s(mark(z0)), cons(mark(x2), x3)), MARK(s(z0)))
   A__SEL(s(cons(z0, z1)), cons(x1, cons(x2, x3))) -> c3(MARK(cons(z0, z1)))
   A__SEL(s(0), cons(x1, cons(x2, x3))) -> c3(A__SEL(0, cons(mark(x2), x3)))
   A__SEL(s(from(from(z0))), cons(x1, x2)) -> c3(A__SEL(a__from(a__from(mark(z0))), mark(x2)), MARK(from(from(z0))))
   A__SEL(s(from(sel(z0, z1))), cons(x1, x2)) -> c3(A__SEL(a__from(a__sel(mark(z0), mark(z1))), mark(x2)), MARK(from(sel(z0, z1))))
   A__SEL(s(from(cons(z0, z1))), cons(x1, x2)) -> c3(A__SEL(a__from(cons(mark(z0), z1)), mark(x2)), MARK(from(cons(z0, z1))))
   A__SEL(s(from(s(z0))), cons(x1, x2)) -> c3(A__SEL(a__from(s(mark(z0))), mark(x2)), MARK(from(s(z0))))
   A__SEL(s(from(0)), cons(x1, x2)) -> c3(A__SEL(a__from(0), mark(x2)), MARK(from(0)))
   A__SEL(s(from(x0)), cons(x1, x2)) -> c3(MARK(from(x0)))
   A__SEL(s(from(x0)), cons(x1, s(z0))) -> c3(MARK(from(x0)))
   A__SEL(s(from(x0)), cons(x1, 0)) -> c3(MARK(from(x0)))
   A__SEL(s(sel(x0, from(z0))), cons(x2, x3)) -> c3(A__SEL(a__sel(mark(x0), a__from(mark(z0))), mark(x3)), MARK(sel(x0, from(z0))))
   A__SEL(s(sel(x0, sel(z0, z1))), cons(x2, x3)) -> c3(A__SEL(a__sel(mark(x0), a__sel(mark(z0), mark(z1))), mark(x3)), MARK(sel(x0, sel(z0, z1))))
   A__SEL(s(sel(x0, cons(z0, z1))), cons(x2, x3)) -> c3(A__SEL(a__sel(mark(x0), cons(mark(z0), z1)), mark(x3)), MARK(sel(x0, cons(z0, z1))))
   A__SEL(s(sel(x0, s(z0))), cons(x2, x3)) -> c3(A__SEL(a__sel(mark(x0), s(mark(z0))), mark(x3)), MARK(sel(x0, s(z0))))
   A__SEL(s(sel(x0, 0)), cons(x2, x3)) -> c3(A__SEL(a__sel(mark(x0), 0), mark(x3)), MARK(sel(x0, 0)))
   A__SEL(s(sel(from(z0), x1)), cons(x2, x3)) -> c3(A__SEL(a__sel(a__from(mark(z0)), mark(x1)), mark(x3)), MARK(sel(from(z0), x1)))
   A__SEL(s(sel(sel(z0, z1), x1)), cons(x2, x3)) -> c3(A__SEL(a__sel(a__sel(mark(z0), mark(z1)), mark(x1)), mark(x3)), MARK(sel(sel(z0, z1), x1)))
   A__SEL(s(sel(cons(z0, z1), x1)), cons(x2, x3)) -> c3(A__SEL(a__sel(cons(mark(z0), z1), mark(x1)), mark(x3)), MARK(sel(cons(z0, z1), x1)))
   A__SEL(s(sel(s(z0), x1)), cons(x2, x3)) -> c3(A__SEL(a__sel(s(mark(z0)), mark(x1)), mark(x3)), MARK(sel(s(z0), x1)))
   A__SEL(s(sel(0, x1)), cons(x2, x3)) -> c3(A__SEL(a__sel(0, mark(x1)), mark(x3)), MARK(sel(0, x1)))
   A__SEL(s(sel(x0, x1)), cons(x2, s(z0))) -> c3(MARK(sel(x0, x1)))
   A__SEL(s(sel(x0, x1)), cons(x2, 0)) -> c3(MARK(sel(x0, x1)))
   A__SEL(s(sel(x0, x1)), cons(x2, x3)) -> c3(MARK(sel(x0, x1)))
   A__SEL(s(s(from(z0))), cons(x1, x2)) -> c3(A__SEL(s(a__from(mark(z0))), mark(x2)), MARK(s(from(z0))))
   A__SEL(s(s(sel(z0, z1))), cons(x1, x2)) -> c3(A__SEL(s(a__sel(mark(z0), mark(z1))), mark(x2)), MARK(s(sel(z0, z1))))
   A__SEL(s(s(cons(z0, z1))), cons(x1, x2)) -> c3(A__SEL(s(cons(mark(z0), z1)), mark(x2)), MARK(s(cons(z0, z1))))
   A__SEL(s(s(s(z0))), cons(x1, x2)) -> c3(A__SEL(s(s(mark(z0))), mark(x2)), MARK(s(s(z0))))
   A__SEL(s(s(0)), cons(x1, x2)) -> c3(A__SEL(s(0), mark(x2)), MARK(s(0)))
   A__SEL(s(s(x0)), cons(x1, x2)) -> c3(MARK(s(x0)))
   A__SEL(s(s(x0)), cons(x1, s(z0))) -> c3(MARK(s(x0)))
   A__SEL(s(s(x0)), cons(x1, 0)) -> c3(MARK(s(x0)))
   A__SEL(s(x0), cons(x1, from(x2))) -> c4(A__SEL(mark(x0), cons(mark(mark(x2)), from(s(mark(x2))))), MARK(from(x2)))
   A__SEL(s(x0), cons(x1, from(from(z0)))) -> c4(A__SEL(mark(x0), a__from(a__from(mark(z0)))), MARK(from(from(z0))))
   A__SEL(s(x0), cons(x1, from(sel(z0, z1)))) -> c4(A__SEL(mark(x0), a__from(a__sel(mark(z0), mark(z1)))), MARK(from(sel(z0, z1))))
   A__SEL(s(x0), cons(x1, from(cons(z0, z1)))) -> c4(A__SEL(mark(x0), a__from(cons(mark(z0), z1))), MARK(from(cons(z0, z1))))
   A__SEL(s(x0), cons(x1, from(s(z0)))) -> c4(A__SEL(mark(x0), a__from(s(mark(z0)))), MARK(from(s(z0))))
   A__SEL(s(x0), cons(x1, from(0))) -> c4(A__SEL(mark(x0), a__from(0)), MARK(from(0)))
   A__SEL(s(from(z0)), cons(x1, from(x2))) -> c4(A__SEL(a__from(mark(z0)), a__from(mark(x2))), MARK(from(x2)))
   A__SEL(s(sel(z0, z1)), cons(x1, from(x2))) -> c4(A__SEL(a__sel(mark(z0), mark(z1)), a__from(mark(x2))), MARK(from(x2)))
   A__SEL(s(s(z0)), cons(x1, from(x2))) -> c4(A__SEL(s(mark(z0)), a__from(mark(x2))), MARK(from(x2)))
   A__SEL(s(0), cons(x1, from(x2))) -> c4(A__SEL(0, a__from(mark(x2))), MARK(from(x2)))
   A__SEL(s(x0), cons(x1, from(x2))) -> c4(MARK(from(x2)))
   A__SEL(s(cons(z0, z1)), cons(x1, from(x2))) -> c4(MARK(from(x2)))
   A__SEL(s(x0), cons(x1, sel(x2, from(z0)))) -> c4(A__SEL(mark(x0), a__sel(mark(x2), a__from(mark(z0)))), MARK(sel(x2, from(z0))))
   A__SEL(s(x0), cons(x1, sel(x2, sel(z0, z1)))) -> c4(A__SEL(mark(x0), a__sel(mark(x2), a__sel(mark(z0), mark(z1)))), MARK(sel(x2, sel(z0, z1))))
   A__SEL(s(x0), cons(x1, sel(x2, cons(z0, z1)))) -> c4(A__SEL(mark(x0), a__sel(mark(x2), cons(mark(z0), z1))), MARK(sel(x2, cons(z0, z1))))
   A__SEL(s(x0), cons(x1, sel(x2, s(z0)))) -> c4(A__SEL(mark(x0), a__sel(mark(x2), s(mark(z0)))), MARK(sel(x2, s(z0))))
   A__SEL(s(x0), cons(x1, sel(x2, 0))) -> c4(A__SEL(mark(x0), a__sel(mark(x2), 0)), MARK(sel(x2, 0)))
   A__SEL(s(x0), cons(x1, sel(from(z0), x3))) -> c4(A__SEL(mark(x0), a__sel(a__from(mark(z0)), mark(x3))), MARK(sel(from(z0), x3)))
   A__SEL(s(x0), cons(x1, sel(sel(z0, z1), x3))) -> c4(A__SEL(mark(x0), a__sel(a__sel(mark(z0), mark(z1)), mark(x3))), MARK(sel(sel(z0, z1), x3)))
   A__SEL(s(x0), cons(x1, sel(cons(z0, z1), x3))) -> c4(A__SEL(mark(x0), a__sel(cons(mark(z0), z1), mark(x3))), MARK(sel(cons(z0, z1), x3)))
   A__SEL(s(x0), cons(x1, sel(s(z0), x3))) -> c4(A__SEL(mark(x0), a__sel(s(mark(z0)), mark(x3))), MARK(sel(s(z0), x3)))
   A__SEL(s(x0), cons(x1, sel(0, x3))) -> c4(A__SEL(mark(x0), a__sel(0, mark(x3))), MARK(sel(0, x3)))
   A__SEL(s(from(z0)), cons(x1, sel(x2, x3))) -> c4(A__SEL(a__from(mark(z0)), a__sel(mark(x2), mark(x3))), MARK(sel(x2, x3)))
   A__SEL(s(sel(z0, z1)), cons(x1, sel(x2, x3))) -> c4(A__SEL(a__sel(mark(z0), mark(z1)), a__sel(mark(x2), mark(x3))), MARK(sel(x2, x3)))
   A__SEL(s(s(z0)), cons(x1, sel(x2, x3))) -> c4(A__SEL(s(mark(z0)), a__sel(mark(x2), mark(x3))), MARK(sel(x2, x3)))
   A__SEL(s(0), cons(x1, sel(x2, x3))) -> c4(A__SEL(0, a__sel(mark(x2), mark(x3))), MARK(sel(x2, x3)))
   A__SEL(s(x0), cons(x1, sel(x2, x3))) -> c4(MARK(sel(x2, x3)))
   A__SEL(s(cons(z0, z1)), cons(x1, sel(x2, x3))) -> c4(MARK(sel(x2, x3)))
   A__SEL(s(x0), cons(x1, cons(from(z0), x3))) -> c4(A__SEL(mark(x0), cons(a__from(mark(z0)), x3)), MARK(cons(from(z0), x3)))
   A__SEL(s(x0), cons(x1, cons(sel(z0, z1), x3))) -> c4(A__SEL(mark(x0), cons(a__sel(mark(z0), mark(z1)), x3)), MARK(cons(sel(z0, z1), x3)))
   A__SEL(s(x0), cons(x1, cons(cons(z0, z1), x3))) -> c4(A__SEL(mark(x0), cons(cons(mark(z0), z1), x3)), MARK(cons(cons(z0, z1), x3)))
   A__SEL(s(x0), cons(x1, cons(s(z0), x3))) -> c4(A__SEL(mark(x0), cons(s(mark(z0)), x3)), MARK(cons(s(z0), x3)))
   A__SEL(s(x0), cons(x1, cons(0, x3))) -> c4(A__SEL(mark(x0), cons(0, x3)), MARK(cons(0, x3)))
   A__SEL(s(from(z0)), cons(x1, cons(x2, x3))) -> c4(A__SEL(a__from(mark(z0)), cons(mark(x2), x3)), MARK(cons(x2, x3)))
   A__SEL(s(sel(z0, z1)), cons(x1, cons(x2, x3))) -> c4(A__SEL(a__sel(mark(z0), mark(z1)), cons(mark(x2), x3)), MARK(cons(x2, x3)))
   A__SEL(s(s(z0)), cons(x1, cons(x2, x3))) -> c4(A__SEL(s(mark(z0)), cons(mark(x2), x3)), MARK(cons(x2, x3)))
   A__SEL(s(0), cons(x1, cons(x2, x3))) -> c4(A__SEL(0, cons(mark(x2), x3)), MARK(cons(x2, x3)))
   A__SEL(s(x0), cons(x1, cons(x2, x3))) -> c4(MARK(cons(x2, x3)))
   A__SEL(s(cons(z0, z1)), cons(x1, cons(x2, x3))) -> c4(MARK(cons(x2, x3)))
   A__SEL(s(from(from(z0))), cons(x1, x2)) -> c4(A__SEL(a__from(a__from(mark(z0))), mark(x2)), MARK(x2))
   A__SEL(s(from(sel(z0, z1))), cons(x1, x2)) -> c4(A__SEL(a__from(a__sel(mark(z0), mark(z1))), mark(x2)), MARK(x2))
   A__SEL(s(from(cons(z0, z1))), cons(x1, x2)) -> c4(A__SEL(a__from(cons(mark(z0), z1)), mark(x2)), MARK(x2))
   A__SEL(s(from(s(z0))), cons(x1, x2)) -> c4(A__SEL(a__from(s(mark(z0))), mark(x2)), MARK(x2))
   A__SEL(s(from(0)), cons(x1, x2)) -> c4(A__SEL(a__from(0), mark(x2)), MARK(x2))
   A__SEL(s(from(x0)), cons(x1, s(z0))) -> c4(MARK(s(z0)))
   A__SEL(s(from(x0)), cons(x1, x2)) -> c4(MARK(x2))
   A__SEL(s(sel(x0, from(z0))), cons(x2, x3)) -> c4(A__SEL(a__sel(mark(x0), a__from(mark(z0))), mark(x3)), MARK(x3))
   A__SEL(s(sel(x0, sel(z0, z1))), cons(x2, x3)) -> c4(A__SEL(a__sel(mark(x0), a__sel(mark(z0), mark(z1))), mark(x3)), MARK(x3))
   A__SEL(s(sel(x0, cons(z0, z1))), cons(x2, x3)) -> c4(A__SEL(a__sel(mark(x0), cons(mark(z0), z1)), mark(x3)), MARK(x3))
   A__SEL(s(sel(x0, s(z0))), cons(x2, x3)) -> c4(A__SEL(a__sel(mark(x0), s(mark(z0))), mark(x3)), MARK(x3))
   A__SEL(s(sel(x0, 0)), cons(x2, x3)) -> c4(A__SEL(a__sel(mark(x0), 0), mark(x3)), MARK(x3))
   A__SEL(s(sel(from(z0), x1)), cons(x2, x3)) -> c4(A__SEL(a__sel(a__from(mark(z0)), mark(x1)), mark(x3)), MARK(x3))
   A__SEL(s(sel(sel(z0, z1), x1)), cons(x2, x3)) -> c4(A__SEL(a__sel(a__sel(mark(z0), mark(z1)), mark(x1)), mark(x3)), MARK(x3))
   A__SEL(s(sel(cons(z0, z1), x1)), cons(x2, x3)) -> c4(A__SEL(a__sel(cons(mark(z0), z1), mark(x1)), mark(x3)), MARK(x3))
   A__SEL(s(sel(s(z0), x1)), cons(x2, x3)) -> c4(A__SEL(a__sel(s(mark(z0)), mark(x1)), mark(x3)), MARK(x3))
   A__SEL(s(sel(0, x1)), cons(x2, x3)) -> c4(A__SEL(a__sel(0, mark(x1)), mark(x3)), MARK(x3))
   A__SEL(s(sel(x0, x1)), cons(x2, s(z0))) -> c4(MARK(s(z0)))
   A__SEL(s(sel(x0, x1)), cons(x2, x3)) -> c4(MARK(x3))
   A__SEL(s(s(from(z0))), cons(x1, x2)) -> c4(A__SEL(s(a__from(mark(z0))), mark(x2)), MARK(x2))
   A__SEL(s(s(sel(z0, z1))), cons(x1, x2)) -> c4(A__SEL(s(a__sel(mark(z0), mark(z1))), mark(x2)), MARK(x2))
   A__SEL(s(s(cons(z0, z1))), cons(x1, x2)) -> c4(A__SEL(s(cons(mark(z0), z1)), mark(x2)), MARK(x2))
   A__SEL(s(s(s(z0))), cons(x1, x2)) -> c4(A__SEL(s(s(mark(z0))), mark(x2)), MARK(x2))
   A__SEL(s(s(0)), cons(x1, x2)) -> c4(A__SEL(s(0), mark(x2)), MARK(x2))
   A__SEL(s(s(x0)), cons(x1, s(z0))) -> c4(MARK(s(z0)))
   A__SEL(s(0), cons(x0, s(z0))) -> c4(MARK(s(z0)))
   MARK(sel(x0, from(x1))) -> c7(A__SEL(mark(x0), cons(mark(mark(x1)), from(s(mark(x1))))), MARK(x0))
   MARK(sel(x0, from(from(z0)))) -> c7(A__SEL(mark(x0), a__from(a__from(mark(z0)))), MARK(x0))
   MARK(sel(x0, from(sel(z0, z1)))) -> c7(A__SEL(mark(x0), a__from(a__sel(mark(z0), mark(z1)))), MARK(x0))
   MARK(sel(x0, from(cons(z0, z1)))) -> c7(A__SEL(mark(x0), a__from(cons(mark(z0), z1))), MARK(x0))
   MARK(sel(x0, from(s(z0)))) -> c7(A__SEL(mark(x0), a__from(s(mark(z0)))), MARK(x0))
   MARK(sel(x0, from(0))) -> c7(A__SEL(mark(x0), a__from(0)), MARK(x0))
   MARK(sel(from(z0), from(x1))) -> c7(A__SEL(a__from(mark(z0)), a__from(mark(x1))), MARK(from(z0)))
   MARK(sel(sel(z0, z1), from(x1))) -> c7(A__SEL(a__sel(mark(z0), mark(z1)), a__from(mark(x1))), MARK(sel(z0, z1)))
   MARK(sel(s(z0), from(x1))) -> c7(A__SEL(s(mark(z0)), a__from(mark(x1))), MARK(s(z0)))
   MARK(sel(x0, from(x1))) -> c7(MARK(x0))
   MARK(sel(cons(z0, z1), from(x1))) -> c7(MARK(cons(z0, z1)))
   MARK(sel(0, from(x1))) -> c7(A__SEL(0, a__from(mark(x1))))
   MARK(sel(x0, sel(x1, from(z0)))) -> c7(A__SEL(mark(x0), a__sel(mark(x1), a__from(mark(z0)))), MARK(x0))
   MARK(sel(x0, sel(x1, sel(z0, z1)))) -> c7(A__SEL(mark(x0), a__sel(mark(x1), a__sel(mark(z0), mark(z1)))), MARK(x0))
   MARK(sel(x0, sel(x1, cons(z0, z1)))) -> c7(A__SEL(mark(x0), a__sel(mark(x1), cons(mark(z0), z1))), MARK(x0))
   MARK(sel(x0, sel(x1, s(z0)))) -> c7(A__SEL(mark(x0), a__sel(mark(x1), s(mark(z0)))), MARK(x0))
   MARK(sel(x0, sel(x1, 0))) -> c7(A__SEL(mark(x0), a__sel(mark(x1), 0)), MARK(x0))
   MARK(sel(x0, sel(from(z0), x2))) -> c7(A__SEL(mark(x0), a__sel(a__from(mark(z0)), mark(x2))), MARK(x0))
   MARK(sel(x0, sel(sel(z0, z1), x2))) -> c7(A__SEL(mark(x0), a__sel(a__sel(mark(z0), mark(z1)), mark(x2))), MARK(x0))
   MARK(sel(x0, sel(cons(z0, z1), x2))) -> c7(A__SEL(mark(x0), a__sel(cons(mark(z0), z1), mark(x2))), MARK(x0))
   MARK(sel(x0, sel(s(z0), x2))) -> c7(A__SEL(mark(x0), a__sel(s(mark(z0)), mark(x2))), MARK(x0))
   MARK(sel(x0, sel(0, x2))) -> c7(A__SEL(mark(x0), a__sel(0, mark(x2))), MARK(x0))
   MARK(sel(from(z0), sel(x1, x2))) -> c7(A__SEL(a__from(mark(z0)), a__sel(mark(x1), mark(x2))), MARK(from(z0)))
   MARK(sel(sel(z0, z1), sel(x1, x2))) -> c7(A__SEL(a__sel(mark(z0), mark(z1)), a__sel(mark(x1), mark(x2))), MARK(sel(z0, z1)))
   MARK(sel(s(z0), sel(x1, x2))) -> c7(A__SEL(s(mark(z0)), a__sel(mark(x1), mark(x2))), MARK(s(z0)))
   MARK(sel(x0, sel(x1, x2))) -> c7(MARK(x0))
   MARK(sel(cons(z0, z1), sel(x1, x2))) -> c7(MARK(cons(z0, z1)))
   MARK(sel(0, sel(x1, x2))) -> c7(A__SEL(0, a__sel(mark(x1), mark(x2))))
   MARK(sel(x0, cons(from(z0), x2))) -> c7(A__SEL(mark(x0), cons(a__from(mark(z0)), x2)), MARK(x0))
   MARK(sel(x0, cons(sel(z0, z1), x2))) -> c7(A__SEL(mark(x0), cons(a__sel(mark(z0), mark(z1)), x2)), MARK(x0))
   MARK(sel(x0, cons(cons(z0, z1), x2))) -> c7(A__SEL(mark(x0), cons(cons(mark(z0), z1), x2)), MARK(x0))
   MARK(sel(x0, cons(s(z0), x2))) -> c7(A__SEL(mark(x0), cons(s(mark(z0)), x2)), MARK(x0))
   MARK(sel(x0, cons(0, x2))) -> c7(A__SEL(mark(x0), cons(0, x2)), MARK(x0))
   MARK(sel(from(z0), cons(x1, x2))) -> c7(A__SEL(a__from(mark(z0)), cons(mark(x1), x2)), MARK(from(z0)))
   MARK(sel(sel(z0, z1), cons(x1, x2))) -> c7(A__SEL(a__sel(mark(z0), mark(z1)), cons(mark(x1), x2)), MARK(sel(z0, z1)))
   MARK(sel(s(z0), cons(x1, x2))) -> c7(A__SEL(s(mark(z0)), cons(mark(x1), x2)), MARK(s(z0)))
   MARK(sel(cons(z0, z1), cons(x1, x2))) -> c7(MARK(cons(z0, z1)))
   MARK(sel(0, cons(x1, x2))) -> c7(A__SEL(0, cons(mark(x1), x2)))
   MARK(sel(from(from(z0)), x1)) -> c7(A__SEL(a__from(a__from(mark(z0))), mark(x1)), MARK(from(from(z0))))
   MARK(sel(from(sel(z0, z1)), x1)) -> c7(A__SEL(a__from(a__sel(mark(z0), mark(z1))), mark(x1)), MARK(from(sel(z0, z1))))
   MARK(sel(from(cons(z0, z1)), x1)) -> c7(A__SEL(a__from(cons(mark(z0), z1)), mark(x1)), MARK(from(cons(z0, z1))))
   MARK(sel(from(s(z0)), x1)) -> c7(A__SEL(a__from(s(mark(z0))), mark(x1)), MARK(from(s(z0))))
   MARK(sel(from(0), x1)) -> c7(A__SEL(a__from(0), mark(x1)), MARK(from(0)))
   MARK(sel(from(x0), x1)) -> c7(MARK(from(x0)))
   MARK(sel(from(x0), s(z0))) -> c7(MARK(from(x0)))
   MARK(sel(from(x0), 0)) -> c7(MARK(from(x0)))
   MARK(sel(sel(x0, from(z0)), x2)) -> c7(A__SEL(a__sel(mark(x0), a__from(mark(z0))), mark(x2)), MARK(sel(x0, from(z0))))
   MARK(sel(sel(x0, sel(z0, z1)), x2)) -> c7(A__SEL(a__sel(mark(x0), a__sel(mark(z0), mark(z1))), mark(x2)), MARK(sel(x0, sel(z0, z1))))
   MARK(sel(sel(x0, cons(z0, z1)), x2)) -> c7(A__SEL(a__sel(mark(x0), cons(mark(z0), z1)), mark(x2)), MARK(sel(x0, cons(z0, z1))))
   MARK(sel(sel(x0, s(z0)), x2)) -> c7(A__SEL(a__sel(mark(x0), s(mark(z0))), mark(x2)), MARK(sel(x0, s(z0))))
   MARK(sel(sel(x0, 0), x2)) -> c7(A__SEL(a__sel(mark(x0), 0), mark(x2)), MARK(sel(x0, 0)))
   MARK(sel(sel(from(z0), x1), x2)) -> c7(A__SEL(a__sel(a__from(mark(z0)), mark(x1)), mark(x2)), MARK(sel(from(z0), x1)))
   MARK(sel(sel(sel(z0, z1), x1), x2)) -> c7(A__SEL(a__sel(a__sel(mark(z0), mark(z1)), mark(x1)), mark(x2)), MARK(sel(sel(z0, z1), x1)))
   MARK(sel(sel(cons(z0, z1), x1), x2)) -> c7(A__SEL(a__sel(cons(mark(z0), z1), mark(x1)), mark(x2)), MARK(sel(cons(z0, z1), x1)))
   MARK(sel(sel(s(z0), x1), x2)) -> c7(A__SEL(a__sel(s(mark(z0)), mark(x1)), mark(x2)), MARK(sel(s(z0), x1)))
   MARK(sel(sel(0, x1), x2)) -> c7(A__SEL(a__sel(0, mark(x1)), mark(x2)), MARK(sel(0, x1)))
   MARK(sel(sel(x0, x1), s(z0))) -> c7(MARK(sel(x0, x1)))
   MARK(sel(sel(x0, x1), 0)) -> c7(MARK(sel(x0, x1)))
   MARK(sel(sel(x0, x1), x2)) -> c7(MARK(sel(x0, x1)))
   MARK(sel(s(from(z0)), x1)) -> c7(A__SEL(s(a__from(mark(z0))), mark(x1)), MARK(s(from(z0))))
   MARK(sel(s(sel(z0, z1)), x1)) -> c7(A__SEL(s(a__sel(mark(z0), mark(z1))), mark(x1)), MARK(s(sel(z0, z1))))
   MARK(sel(s(cons(z0, z1)), x1)) -> c7(A__SEL(s(cons(mark(z0), z1)), mark(x1)), MARK(s(cons(z0, z1))))
   MARK(sel(s(s(z0)), x1)) -> c7(A__SEL(s(s(mark(z0))), mark(x1)), MARK(s(s(z0))))
   MARK(sel(s(0), x1)) -> c7(A__SEL(s(0), mark(x1)), MARK(s(0)))
   MARK(sel(s(x0), x1)) -> c7(MARK(s(x0)))
   MARK(sel(s(x0), s(z0))) -> c7(MARK(s(x0)))
   MARK(sel(s(x0), 0)) -> c7(MARK(s(x0)))
   MARK(sel(x0, from(x1))) -> c8(A__SEL(mark(x0), cons(mark(mark(x1)), from(s(mark(x1))))), MARK(from(x1)))
   MARK(sel(x0, from(from(z0)))) -> c8(A__SEL(mark(x0), a__from(a__from(mark(z0)))), MARK(from(from(z0))))
   MARK(sel(x0, from(sel(z0, z1)))) -> c8(A__SEL(mark(x0), a__from(a__sel(mark(z0), mark(z1)))), MARK(from(sel(z0, z1))))
   MARK(sel(x0, from(cons(z0, z1)))) -> c8(A__SEL(mark(x0), a__from(cons(mark(z0), z1))), MARK(from(cons(z0, z1))))
   MARK(sel(x0, from(s(z0)))) -> c8(A__SEL(mark(x0), a__from(s(mark(z0)))), MARK(from(s(z0))))
   MARK(sel(x0, from(0))) -> c8(A__SEL(mark(x0), a__from(0)), MARK(from(0)))
   MARK(sel(from(z0), from(x1))) -> c8(A__SEL(a__from(mark(z0)), a__from(mark(x1))), MARK(from(x1)))
   MARK(sel(sel(z0, z1), from(x1))) -> c8(A__SEL(a__sel(mark(z0), mark(z1)), a__from(mark(x1))), MARK(from(x1)))
   MARK(sel(s(z0), from(x1))) -> c8(A__SEL(s(mark(z0)), a__from(mark(x1))), MARK(from(x1)))
   MARK(sel(0, from(x1))) -> c8(A__SEL(0, a__from(mark(x1))), MARK(from(x1)))
   MARK(sel(x0, from(x1))) -> c8(MARK(from(x1)))
   MARK(sel(cons(z0, z1), from(x1))) -> c8(MARK(from(x1)))
   MARK(sel(x0, sel(x1, from(z0)))) -> c8(A__SEL(mark(x0), a__sel(mark(x1), a__from(mark(z0)))), MARK(sel(x1, from(z0))))
   MARK(sel(x0, sel(x1, sel(z0, z1)))) -> c8(A__SEL(mark(x0), a__sel(mark(x1), a__sel(mark(z0), mark(z1)))), MARK(sel(x1, sel(z0, z1))))
   MARK(sel(x0, sel(x1, cons(z0, z1)))) -> c8(A__SEL(mark(x0), a__sel(mark(x1), cons(mark(z0), z1))), MARK(sel(x1, cons(z0, z1))))
   MARK(sel(x0, sel(x1, s(z0)))) -> c8(A__SEL(mark(x0), a__sel(mark(x1), s(mark(z0)))), MARK(sel(x1, s(z0))))
   MARK(sel(x0, sel(x1, 0))) -> c8(A__SEL(mark(x0), a__sel(mark(x1), 0)), MARK(sel(x1, 0)))
   MARK(sel(x0, sel(from(z0), x2))) -> c8(A__SEL(mark(x0), a__sel(a__from(mark(z0)), mark(x2))), MARK(sel(from(z0), x2)))
   MARK(sel(x0, sel(sel(z0, z1), x2))) -> c8(A__SEL(mark(x0), a__sel(a__sel(mark(z0), mark(z1)), mark(x2))), MARK(sel(sel(z0, z1), x2)))
   MARK(sel(x0, sel(cons(z0, z1), x2))) -> c8(A__SEL(mark(x0), a__sel(cons(mark(z0), z1), mark(x2))), MARK(sel(cons(z0, z1), x2)))
   MARK(sel(x0, sel(s(z0), x2))) -> c8(A__SEL(mark(x0), a__sel(s(mark(z0)), mark(x2))), MARK(sel(s(z0), x2)))
   MARK(sel(x0, sel(0, x2))) -> c8(A__SEL(mark(x0), a__sel(0, mark(x2))), MARK(sel(0, x2)))
   MARK(sel(from(z0), sel(x1, x2))) -> c8(A__SEL(a__from(mark(z0)), a__sel(mark(x1), mark(x2))), MARK(sel(x1, x2)))
   MARK(sel(sel(z0, z1), sel(x1, x2))) -> c8(A__SEL(a__sel(mark(z0), mark(z1)), a__sel(mark(x1), mark(x2))), MARK(sel(x1, x2)))
   MARK(sel(s(z0), sel(x1, x2))) -> c8(A__SEL(s(mark(z0)), a__sel(mark(x1), mark(x2))), MARK(sel(x1, x2)))
   MARK(sel(0, sel(x1, x2))) -> c8(A__SEL(0, a__sel(mark(x1), mark(x2))), MARK(sel(x1, x2)))
   MARK(sel(x0, sel(x1, x2))) -> c8(MARK(sel(x1, x2)))
   MARK(sel(cons(z0, z1), sel(x1, x2))) -> c8(MARK(sel(x1, x2)))
   MARK(sel(x0, cons(from(z0), x2))) -> c8(A__SEL(mark(x0), cons(a__from(mark(z0)), x2)), MARK(cons(from(z0), x2)))
   MARK(sel(x0, cons(sel(z0, z1), x2))) -> c8(A__SEL(mark(x0), cons(a__sel(mark(z0), mark(z1)), x2)), MARK(cons(sel(z0, z1), x2)))
   MARK(sel(x0, cons(cons(z0, z1), x2))) -> c8(A__SEL(mark(x0), cons(cons(mark(z0), z1), x2)), MARK(cons(cons(z0, z1), x2)))
   MARK(sel(x0, cons(s(z0), x2))) -> c8(A__SEL(mark(x0), cons(s(mark(z0)), x2)), MARK(cons(s(z0), x2)))
   MARK(sel(x0, cons(0, x2))) -> c8(A__SEL(mark(x0), cons(0, x2)), MARK(cons(0, x2)))
   MARK(sel(from(z0), cons(x1, x2))) -> c8(A__SEL(a__from(mark(z0)), cons(mark(x1), x2)), MARK(cons(x1, x2)))
   MARK(sel(sel(z0, z1), cons(x1, x2))) -> c8(A__SEL(a__sel(mark(z0), mark(z1)), cons(mark(x1), x2)), MARK(cons(x1, x2)))
   MARK(sel(cons(z0, z1), cons(x1, x2))) -> c8(A__SEL(cons(mark(z0), z1), cons(mark(x1), x2)), MARK(cons(x1, x2)))
   MARK(sel(s(z0), cons(x1, x2))) -> c8(A__SEL(s(mark(z0)), cons(mark(x1), x2)), MARK(cons(x1, x2)))
   MARK(sel(0, cons(x1, x2))) -> c8(A__SEL(0, cons(mark(x1), x2)), MARK(cons(x1, x2)))
   MARK(sel(x0, cons(x1, x2))) -> c8(MARK(cons(x1, x2)))
K tuples:none
Defined Rule Symbols:   a__from_1, a__sel_2, mark_1

Defined Pair Symbols:   A__FROM_1, A__SEL_2, MARK_1

Compound Symbols:   c_1, c2_1, c6_2, c9_1, c10_1, c3_1, c4_1, c7_1, c8_2, c8_1, c3_2, c4_2, c7_2


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

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

(180)
Obligation:
Complexity Dependency Tuples Problem

Rules:
   a__from(z0) -> cons(mark(z0), from(s(z0)))
   a__from(z0) -> from(z0)
   a__sel(0, cons(z0, z1)) -> mark(z0)
   a__sel(s(z0), cons(z1, z2)) -> a__sel(mark(z0), mark(z2))
   a__sel(z0, z1) -> sel(z0, z1)
   mark(from(z0)) -> a__from(mark(z0))
   mark(sel(z0, z1)) -> a__sel(mark(z0), mark(z1))
   mark(cons(z0, z1)) -> cons(mark(z0), z1)
   mark(s(z0)) -> s(mark(z0))
   mark(0) -> 0
Tuples:
   A__FROM(z0) -> c(MARK(z0))
   A__SEL(0, cons(z0, z1)) -> c2(MARK(z0))
   MARK(from(z0)) -> c6(A__FROM(mark(z0)), MARK(z0))
   MARK(cons(z0, z1)) -> c9(MARK(z0))
   MARK(s(z0)) -> c10(MARK(z0))
   A__SEL(s(x0), cons(x1, s(z0))) -> c3(MARK(x0))
   A__SEL(s(x0), cons(x1, 0)) -> c3(MARK(x0))
   A__SEL(s(cons(z0, z1)), cons(x1, x2)) -> c3(MARK(cons(z0, z1)))
   A__SEL(s(x0), cons(x1, s(z0))) -> c4(MARK(s(z0)))
   A__SEL(s(cons(z0, z1)), cons(x1, x2)) -> c4(MARK(x2))
   MARK(sel(x0, s(z0))) -> c7(MARK(x0))
   MARK(sel(x0, 0)) -> c7(MARK(x0))
   MARK(sel(cons(z0, z1), x1)) -> c7(MARK(cons(z0, z1)))
   MARK(sel(from(z0), x1)) -> c8(A__SEL(a__from(mark(z0)), mark(x1)), MARK(x1))
   MARK(sel(sel(z0, z1), x1)) -> c8(A__SEL(a__sel(mark(z0), mark(z1)), mark(x1)), MARK(x1))
   MARK(sel(s(z0), x1)) -> c8(A__SEL(s(mark(z0)), mark(x1)), MARK(x1))
   MARK(sel(0, x1)) -> c8(A__SEL(0, mark(x1)), MARK(x1))
   MARK(sel(x0, s(z0))) -> c8(MARK(s(z0)))
   MARK(sel(cons(z0, z1), x1)) -> c8(MARK(x1))
   A__SEL(s(x0), cons(x1, from(x2))) -> c3(A__SEL(mark(x0), cons(mark(mark(x2)), from(s(mark(x2))))), MARK(x0))
   A__SEL(s(x0), cons(x1, from(from(z0)))) -> c3(A__SEL(mark(x0), a__from(a__from(mark(z0)))), MARK(x0))
   A__SEL(s(x0), cons(x1, from(sel(z0, z1)))) -> c3(A__SEL(mark(x0), a__from(a__sel(mark(z0), mark(z1)))), MARK(x0))
   A__SEL(s(x0), cons(x1, from(cons(z0, z1)))) -> c3(A__SEL(mark(x0), a__from(cons(mark(z0), z1))), MARK(x0))
   A__SEL(s(x0), cons(x1, from(s(z0)))) -> c3(A__SEL(mark(x0), a__from(s(mark(z0)))), MARK(x0))
   A__SEL(s(x0), cons(x1, from(0))) -> c3(A__SEL(mark(x0), a__from(0)), MARK(x0))
   A__SEL(s(from(z0)), cons(x1, from(x2))) -> c3(A__SEL(a__from(mark(z0)), a__from(mark(x2))), MARK(from(z0)))
   A__SEL(s(sel(z0, z1)), cons(x1, from(x2))) -> c3(A__SEL(a__sel(mark(z0), mark(z1)), a__from(mark(x2))), MARK(sel(z0, z1)))
   A__SEL(s(s(z0)), cons(x1, from(x2))) -> c3(A__SEL(s(mark(z0)), a__from(mark(x2))), MARK(s(z0)))
   A__SEL(s(x0), cons(x1, from(x2))) -> c3(MARK(x0))
   A__SEL(s(cons(z0, z1)), cons(x1, from(x2))) -> c3(MARK(cons(z0, z1)))
   A__SEL(s(0), cons(x1, from(x2))) -> c3(A__SEL(0, a__from(mark(x2))))
   A__SEL(s(x0), cons(x1, sel(x2, from(z0)))) -> c3(A__SEL(mark(x0), a__sel(mark(x2), a__from(mark(z0)))), MARK(x0))
   A__SEL(s(x0), cons(x1, sel(x2, sel(z0, z1)))) -> c3(A__SEL(mark(x0), a__sel(mark(x2), a__sel(mark(z0), mark(z1)))), MARK(x0))
   A__SEL(s(x0), cons(x1, sel(x2, cons(z0, z1)))) -> c3(A__SEL(mark(x0), a__sel(mark(x2), cons(mark(z0), z1))), MARK(x0))
   A__SEL(s(x0), cons(x1, sel(x2, s(z0)))) -> c3(A__SEL(mark(x0), a__sel(mark(x2), s(mark(z0)))), MARK(x0))
   A__SEL(s(x0), cons(x1, sel(x2, 0))) -> c3(A__SEL(mark(x0), a__sel(mark(x2), 0)), MARK(x0))
   A__SEL(s(x0), cons(x1, sel(from(z0), x3))) -> c3(A__SEL(mark(x0), a__sel(a__from(mark(z0)), mark(x3))), MARK(x0))
   A__SEL(s(x0), cons(x1, sel(sel(z0, z1), x3))) -> c3(A__SEL(mark(x0), a__sel(a__sel(mark(z0), mark(z1)), mark(x3))), MARK(x0))
   A__SEL(s(x0), cons(x1, sel(cons(z0, z1), x3))) -> c3(A__SEL(mark(x0), a__sel(cons(mark(z0), z1), mark(x3))), MARK(x0))
   A__SEL(s(x0), cons(x1, sel(s(z0), x3))) -> c3(A__SEL(mark(x0), a__sel(s(mark(z0)), mark(x3))), MARK(x0))
   A__SEL(s(x0), cons(x1, sel(0, x3))) -> c3(A__SEL(mark(x0), a__sel(0, mark(x3))), MARK(x0))
   A__SEL(s(from(z0)), cons(x1, sel(x2, x3))) -> c3(A__SEL(a__from(mark(z0)), a__sel(mark(x2), mark(x3))), MARK(from(z0)))
   A__SEL(s(sel(z0, z1)), cons(x1, sel(x2, x3))) -> c3(A__SEL(a__sel(mark(z0), mark(z1)), a__sel(mark(x2), mark(x3))), MARK(sel(z0, z1)))
   A__SEL(s(s(z0)), cons(x1, sel(x2, x3))) -> c3(A__SEL(s(mark(z0)), a__sel(mark(x2), mark(x3))), MARK(s(z0)))
   A__SEL(s(x0), cons(x1, sel(x2, x3))) -> c3(MARK(x0))
   A__SEL(s(cons(z0, z1)), cons(x1, sel(x2, x3))) -> c3(MARK(cons(z0, z1)))
   A__SEL(s(0), cons(x1, sel(x2, x3))) -> c3(A__SEL(0, a__sel(mark(x2), mark(x3))))
   A__SEL(s(x0), cons(x1, cons(from(z0), x3))) -> c3(A__SEL(mark(x0), cons(a__from(mark(z0)), x3)), MARK(x0))
   A__SEL(s(x0), cons(x1, cons(sel(z0, z1), x3))) -> c3(A__SEL(mark(x0), cons(a__sel(mark(z0), mark(z1)), x3)), MARK(x0))
   A__SEL(s(x0), cons(x1, cons(cons(z0, z1), x3))) -> c3(A__SEL(mark(x0), cons(cons(mark(z0), z1), x3)), MARK(x0))
   A__SEL(s(x0), cons(x1, cons(s(z0), x3))) -> c3(A__SEL(mark(x0), cons(s(mark(z0)), x3)), MARK(x0))
   A__SEL(s(x0), cons(x1, cons(0, x3))) -> c3(A__SEL(mark(x0), cons(0, x3)), MARK(x0))
   A__SEL(s(from(z0)), cons(x1, cons(x2, x3))) -> c3(A__SEL(a__from(mark(z0)), cons(mark(x2), x3)), MARK(from(z0)))
   A__SEL(s(sel(z0, z1)), cons(x1, cons(x2, x3))) -> c3(A__SEL(a__sel(mark(z0), mark(z1)), cons(mark(x2), x3)), MARK(sel(z0, z1)))
   A__SEL(s(s(z0)), cons(x1, cons(x2, x3))) -> c3(A__SEL(s(mark(z0)), cons(mark(x2), x3)), MARK(s(z0)))
   A__SEL(s(cons(z0, z1)), cons(x1, cons(x2, x3))) -> c3(MARK(cons(z0, z1)))
   A__SEL(s(0), cons(x1, cons(x2, x3))) -> c3(A__SEL(0, cons(mark(x2), x3)))
   A__SEL(s(from(from(z0))), cons(x1, x2)) -> c3(A__SEL(a__from(a__from(mark(z0))), mark(x2)), MARK(from(from(z0))))
   A__SEL(s(from(sel(z0, z1))), cons(x1, x2)) -> c3(A__SEL(a__from(a__sel(mark(z0), mark(z1))), mark(x2)), MARK(from(sel(z0, z1))))
   A__SEL(s(from(cons(z0, z1))), cons(x1, x2)) -> c3(A__SEL(a__from(cons(mark(z0), z1)), mark(x2)), MARK(from(cons(z0, z1))))
   A__SEL(s(from(s(z0))), cons(x1, x2)) -> c3(A__SEL(a__from(s(mark(z0))), mark(x2)), MARK(from(s(z0))))
   A__SEL(s(from(0)), cons(x1, x2)) -> c3(A__SEL(a__from(0), mark(x2)), MARK(from(0)))
   A__SEL(s(from(x0)), cons(x1, x2)) -> c3(MARK(from(x0)))
   A__SEL(s(from(x0)), cons(x1, s(z0))) -> c3(MARK(from(x0)))
   A__SEL(s(from(x0)), cons(x1, 0)) -> c3(MARK(from(x0)))
   A__SEL(s(sel(x0, from(z0))), cons(x2, x3)) -> c3(A__SEL(a__sel(mark(x0), a__from(mark(z0))), mark(x3)), MARK(sel(x0, from(z0))))
   A__SEL(s(sel(x0, sel(z0, z1))), cons(x2, x3)) -> c3(A__SEL(a__sel(mark(x0), a__sel(mark(z0), mark(z1))), mark(x3)), MARK(sel(x0, sel(z0, z1))))
   A__SEL(s(sel(x0, cons(z0, z1))), cons(x2, x3)) -> c3(A__SEL(a__sel(mark(x0), cons(mark(z0), z1)), mark(x3)), MARK(sel(x0, cons(z0, z1))))
   A__SEL(s(sel(x0, s(z0))), cons(x2, x3)) -> c3(A__SEL(a__sel(mark(x0), s(mark(z0))), mark(x3)), MARK(sel(x0, s(z0))))
   A__SEL(s(sel(x0, 0)), cons(x2, x3)) -> c3(A__SEL(a__sel(mark(x0), 0), mark(x3)), MARK(sel(x0, 0)))
   A__SEL(s(sel(from(z0), x1)), cons(x2, x3)) -> c3(A__SEL(a__sel(a__from(mark(z0)), mark(x1)), mark(x3)), MARK(sel(from(z0), x1)))
   A__SEL(s(sel(sel(z0, z1), x1)), cons(x2, x3)) -> c3(A__SEL(a__sel(a__sel(mark(z0), mark(z1)), mark(x1)), mark(x3)), MARK(sel(sel(z0, z1), x1)))
   A__SEL(s(sel(cons(z0, z1), x1)), cons(x2, x3)) -> c3(A__SEL(a__sel(cons(mark(z0), z1), mark(x1)), mark(x3)), MARK(sel(cons(z0, z1), x1)))
   A__SEL(s(sel(s(z0), x1)), cons(x2, x3)) -> c3(A__SEL(a__sel(s(mark(z0)), mark(x1)), mark(x3)), MARK(sel(s(z0), x1)))
   A__SEL(s(sel(0, x1)), cons(x2, x3)) -> c3(A__SEL(a__sel(0, mark(x1)), mark(x3)), MARK(sel(0, x1)))
   A__SEL(s(sel(x0, x1)), cons(x2, s(z0))) -> c3(MARK(sel(x0, x1)))
   A__SEL(s(sel(x0, x1)), cons(x2, 0)) -> c3(MARK(sel(x0, x1)))
   A__SEL(s(sel(x0, x1)), cons(x2, x3)) -> c3(MARK(sel(x0, x1)))
   A__SEL(s(s(from(z0))), cons(x1, x2)) -> c3(A__SEL(s(a__from(mark(z0))), mark(x2)), MARK(s(from(z0))))
   A__SEL(s(s(sel(z0, z1))), cons(x1, x2)) -> c3(A__SEL(s(a__sel(mark(z0), mark(z1))), mark(x2)), MARK(s(sel(z0, z1))))
   A__SEL(s(s(cons(z0, z1))), cons(x1, x2)) -> c3(A__SEL(s(cons(mark(z0), z1)), mark(x2)), MARK(s(cons(z0, z1))))
   A__SEL(s(s(s(z0))), cons(x1, x2)) -> c3(A__SEL(s(s(mark(z0))), mark(x2)), MARK(s(s(z0))))
   A__SEL(s(s(0)), cons(x1, x2)) -> c3(A__SEL(s(0), mark(x2)), MARK(s(0)))
   A__SEL(s(s(x0)), cons(x1, x2)) -> c3(MARK(s(x0)))
   A__SEL(s(s(x0)), cons(x1, s(z0))) -> c3(MARK(s(x0)))
   A__SEL(s(s(x0)), cons(x1, 0)) -> c3(MARK(s(x0)))
   A__SEL(s(x0), cons(x1, from(x2))) -> c4(A__SEL(mark(x0), cons(mark(mark(x2)), from(s(mark(x2))))), MARK(from(x2)))
   A__SEL(s(x0), cons(x1, from(from(z0)))) -> c4(A__SEL(mark(x0), a__from(a__from(mark(z0)))), MARK(from(from(z0))))
   A__SEL(s(x0), cons(x1, from(sel(z0, z1)))) -> c4(A__SEL(mark(x0), a__from(a__sel(mark(z0), mark(z1)))), MARK(from(sel(z0, z1))))
   A__SEL(s(x0), cons(x1, from(cons(z0, z1)))) -> c4(A__SEL(mark(x0), a__from(cons(mark(z0), z1))), MARK(from(cons(z0, z1))))
   A__SEL(s(x0), cons(x1, from(s(z0)))) -> c4(A__SEL(mark(x0), a__from(s(mark(z0)))), MARK(from(s(z0))))
   A__SEL(s(x0), cons(x1, from(0))) -> c4(A__SEL(mark(x0), a__from(0)), MARK(from(0)))
   A__SEL(s(from(z0)), cons(x1, from(x2))) -> c4(A__SEL(a__from(mark(z0)), a__from(mark(x2))), MARK(from(x2)))
   A__SEL(s(sel(z0, z1)), cons(x1, from(x2))) -> c4(A__SEL(a__sel(mark(z0), mark(z1)), a__from(mark(x2))), MARK(from(x2)))
   A__SEL(s(s(z0)), cons(x1, from(x2))) -> c4(A__SEL(s(mark(z0)), a__from(mark(x2))), MARK(from(x2)))
   A__SEL(s(0), cons(x1, from(x2))) -> c4(A__SEL(0, a__from(mark(x2))), MARK(from(x2)))
   A__SEL(s(x0), cons(x1, from(x2))) -> c4(MARK(from(x2)))
   A__SEL(s(cons(z0, z1)), cons(x1, from(x2))) -> c4(MARK(from(x2)))
   A__SEL(s(x0), cons(x1, sel(x2, from(z0)))) -> c4(A__SEL(mark(x0), a__sel(mark(x2), a__from(mark(z0)))), MARK(sel(x2, from(z0))))
   A__SEL(s(x0), cons(x1, sel(x2, sel(z0, z1)))) -> c4(A__SEL(mark(x0), a__sel(mark(x2), a__sel(mark(z0), mark(z1)))), MARK(sel(x2, sel(z0, z1))))
   A__SEL(s(x0), cons(x1, sel(x2, cons(z0, z1)))) -> c4(A__SEL(mark(x0), a__sel(mark(x2), cons(mark(z0), z1))), MARK(sel(x2, cons(z0, z1))))
   A__SEL(s(x0), cons(x1, sel(x2, s(z0)))) -> c4(A__SEL(mark(x0), a__sel(mark(x2), s(mark(z0)))), MARK(sel(x2, s(z0))))
   A__SEL(s(x0), cons(x1, sel(x2, 0))) -> c4(A__SEL(mark(x0), a__sel(mark(x2), 0)), MARK(sel(x2, 0)))
   A__SEL(s(x0), cons(x1, sel(from(z0), x3))) -> c4(A__SEL(mark(x0), a__sel(a__from(mark(z0)), mark(x3))), MARK(sel(from(z0), x3)))
   A__SEL(s(x0), cons(x1, sel(sel(z0, z1), x3))) -> c4(A__SEL(mark(x0), a__sel(a__sel(mark(z0), mark(z1)), mark(x3))), MARK(sel(sel(z0, z1), x3)))
   A__SEL(s(x0), cons(x1, sel(cons(z0, z1), x3))) -> c4(A__SEL(mark(x0), a__sel(cons(mark(z0), z1), mark(x3))), MARK(sel(cons(z0, z1), x3)))
   A__SEL(s(x0), cons(x1, sel(s(z0), x3))) -> c4(A__SEL(mark(x0), a__sel(s(mark(z0)), mark(x3))), MARK(sel(s(z0), x3)))
   A__SEL(s(x0), cons(x1, sel(0, x3))) -> c4(A__SEL(mark(x0), a__sel(0, mark(x3))), MARK(sel(0, x3)))
   A__SEL(s(from(z0)), cons(x1, sel(x2, x3))) -> c4(A__SEL(a__from(mark(z0)), a__sel(mark(x2), mark(x3))), MARK(sel(x2, x3)))
   A__SEL(s(sel(z0, z1)), cons(x1, sel(x2, x3))) -> c4(A__SEL(a__sel(mark(z0), mark(z1)), a__sel(mark(x2), mark(x3))), MARK(sel(x2, x3)))
   A__SEL(s(s(z0)), cons(x1, sel(x2, x3))) -> c4(A__SEL(s(mark(z0)), a__sel(mark(x2), mark(x3))), MARK(sel(x2, x3)))
   A__SEL(s(0), cons(x1, sel(x2, x3))) -> c4(A__SEL(0, a__sel(mark(x2), mark(x3))), MARK(sel(x2, x3)))
   A__SEL(s(x0), cons(x1, sel(x2, x3))) -> c4(MARK(sel(x2, x3)))
   A__SEL(s(cons(z0, z1)), cons(x1, sel(x2, x3))) -> c4(MARK(sel(x2, x3)))
   A__SEL(s(x0), cons(x1, cons(from(z0), x3))) -> c4(A__SEL(mark(x0), cons(a__from(mark(z0)), x3)), MARK(cons(from(z0), x3)))
   A__SEL(s(x0), cons(x1, cons(sel(z0, z1), x3))) -> c4(A__SEL(mark(x0), cons(a__sel(mark(z0), mark(z1)), x3)), MARK(cons(sel(z0, z1), x3)))
   A__SEL(s(x0), cons(x1, cons(cons(z0, z1), x3))) -> c4(A__SEL(mark(x0), cons(cons(mark(z0), z1), x3)), MARK(cons(cons(z0, z1), x3)))
   A__SEL(s(x0), cons(x1, cons(s(z0), x3))) -> c4(A__SEL(mark(x0), cons(s(mark(z0)), x3)), MARK(cons(s(z0), x3)))
   A__SEL(s(x0), cons(x1, cons(0, x3))) -> c4(A__SEL(mark(x0), cons(0, x3)), MARK(cons(0, x3)))
   A__SEL(s(from(z0)), cons(x1, cons(x2, x3))) -> c4(A__SEL(a__from(mark(z0)), cons(mark(x2), x3)), MARK(cons(x2, x3)))
   A__SEL(s(sel(z0, z1)), cons(x1, cons(x2, x3))) -> c4(A__SEL(a__sel(mark(z0), mark(z1)), cons(mark(x2), x3)), MARK(cons(x2, x3)))
   A__SEL(s(s(z0)), cons(x1, cons(x2, x3))) -> c4(A__SEL(s(mark(z0)), cons(mark(x2), x3)), MARK(cons(x2, x3)))
   A__SEL(s(0), cons(x1, cons(x2, x3))) -> c4(A__SEL(0, cons(mark(x2), x3)), MARK(cons(x2, x3)))
   A__SEL(s(x0), cons(x1, cons(x2, x3))) -> c4(MARK(cons(x2, x3)))
   A__SEL(s(cons(z0, z1)), cons(x1, cons(x2, x3))) -> c4(MARK(cons(x2, x3)))
   A__SEL(s(from(from(z0))), cons(x1, x2)) -> c4(A__SEL(a__from(a__from(mark(z0))), mark(x2)), MARK(x2))
   A__SEL(s(from(sel(z0, z1))), cons(x1, x2)) -> c4(A__SEL(a__from(a__sel(mark(z0), mark(z1))), mark(x2)), MARK(x2))
   A__SEL(s(from(cons(z0, z1))), cons(x1, x2)) -> c4(A__SEL(a__from(cons(mark(z0), z1)), mark(x2)), MARK(x2))
   A__SEL(s(from(s(z0))), cons(x1, x2)) -> c4(A__SEL(a__from(s(mark(z0))), mark(x2)), MARK(x2))
   A__SEL(s(from(0)), cons(x1, x2)) -> c4(A__SEL(a__from(0), mark(x2)), MARK(x2))
   A__SEL(s(from(x0)), cons(x1, s(z0))) -> c4(MARK(s(z0)))
   A__SEL(s(from(x0)), cons(x1, x2)) -> c4(MARK(x2))
   A__SEL(s(sel(x0, from(z0))), cons(x2, x3)) -> c4(A__SEL(a__sel(mark(x0), a__from(mark(z0))), mark(x3)), MARK(x3))
   A__SEL(s(sel(x0, sel(z0, z1))), cons(x2, x3)) -> c4(A__SEL(a__sel(mark(x0), a__sel(mark(z0), mark(z1))), mark(x3)), MARK(x3))
   A__SEL(s(sel(x0, cons(z0, z1))), cons(x2, x3)) -> c4(A__SEL(a__sel(mark(x0), cons(mark(z0), z1)), mark(x3)), MARK(x3))
   A__SEL(s(sel(x0, s(z0))), cons(x2, x3)) -> c4(A__SEL(a__sel(mark(x0), s(mark(z0))), mark(x3)), MARK(x3))
   A__SEL(s(sel(x0, 0)), cons(x2, x3)) -> c4(A__SEL(a__sel(mark(x0), 0), mark(x3)), MARK(x3))
   A__SEL(s(sel(from(z0), x1)), cons(x2, x3)) -> c4(A__SEL(a__sel(a__from(mark(z0)), mark(x1)), mark(x3)), MARK(x3))
   A__SEL(s(sel(sel(z0, z1), x1)), cons(x2, x3)) -> c4(A__SEL(a__sel(a__sel(mark(z0), mark(z1)), mark(x1)), mark(x3)), MARK(x3))
   A__SEL(s(sel(cons(z0, z1), x1)), cons(x2, x3)) -> c4(A__SEL(a__sel(cons(mark(z0), z1), mark(x1)), mark(x3)), MARK(x3))
   A__SEL(s(sel(s(z0), x1)), cons(x2, x3)) -> c4(A__SEL(a__sel(s(mark(z0)), mark(x1)), mark(x3)), MARK(x3))
   A__SEL(s(sel(0, x1)), cons(x2, x3)) -> c4(A__SEL(a__sel(0, mark(x1)), mark(x3)), MARK(x3))
   A__SEL(s(sel(x0, x1)), cons(x2, s(z0))) -> c4(MARK(s(z0)))
   A__SEL(s(sel(x0, x1)), cons(x2, x3)) -> c4(MARK(x3))
   A__SEL(s(s(from(z0))), cons(x1, x2)) -> c4(A__SEL(s(a__from(mark(z0))), mark(x2)), MARK(x2))
   A__SEL(s(s(sel(z0, z1))), cons(x1, x2)) -> c4(A__SEL(s(a__sel(mark(z0), mark(z1))), mark(x2)), MARK(x2))
   A__SEL(s(s(cons(z0, z1))), cons(x1, x2)) -> c4(A__SEL(s(cons(mark(z0), z1)), mark(x2)), MARK(x2))
   A__SEL(s(s(s(z0))), cons(x1, x2)) -> c4(A__SEL(s(s(mark(z0))), mark(x2)), MARK(x2))
   A__SEL(s(s(0)), cons(x1, x2)) -> c4(A__SEL(s(0), mark(x2)), MARK(x2))
   A__SEL(s(s(x0)), cons(x1, s(z0))) -> c4(MARK(s(z0)))
   A__SEL(s(0), cons(x0, s(z0))) -> c4(MARK(s(z0)))
   MARK(sel(x0, from(x1))) -> c7(A__SEL(mark(x0), cons(mark(mark(x1)), from(s(mark(x1))))), MARK(x0))
   MARK(sel(x0, from(from(z0)))) -> c7(A__SEL(mark(x0), a__from(a__from(mark(z0)))), MARK(x0))
   MARK(sel(x0, from(sel(z0, z1)))) -> c7(A__SEL(mark(x0), a__from(a__sel(mark(z0), mark(z1)))), MARK(x0))
   MARK(sel(x0, from(cons(z0, z1)))) -> c7(A__SEL(mark(x0), a__from(cons(mark(z0), z1))), MARK(x0))
   MARK(sel(x0, from(s(z0)))) -> c7(A__SEL(mark(x0), a__from(s(mark(z0)))), MARK(x0))
   MARK(sel(x0, from(0))) -> c7(A__SEL(mark(x0), a__from(0)), MARK(x0))
   MARK(sel(from(z0), from(x1))) -> c7(A__SEL(a__from(mark(z0)), a__from(mark(x1))), MARK(from(z0)))
   MARK(sel(sel(z0, z1), from(x1))) -> c7(A__SEL(a__sel(mark(z0), mark(z1)), a__from(mark(x1))), MARK(sel(z0, z1)))
   MARK(sel(s(z0), from(x1))) -> c7(A__SEL(s(mark(z0)), a__from(mark(x1))), MARK(s(z0)))
   MARK(sel(x0, from(x1))) -> c7(MARK(x0))
   MARK(sel(cons(z0, z1), from(x1))) -> c7(MARK(cons(z0, z1)))
   MARK(sel(0, from(x1))) -> c7(A__SEL(0, a__from(mark(x1))))
   MARK(sel(x0, sel(x1, from(z0)))) -> c7(A__SEL(mark(x0), a__sel(mark(x1), a__from(mark(z0)))), MARK(x0))
   MARK(sel(x0, sel(x1, sel(z0, z1)))) -> c7(A__SEL(mark(x0), a__sel(mark(x1), a__sel(mark(z0), mark(z1)))), MARK(x0))
   MARK(sel(x0, sel(x1, cons(z0, z1)))) -> c7(A__SEL(mark(x0), a__sel(mark(x1), cons(mark(z0), z1))), MARK(x0))
   MARK(sel(x0, sel(x1, s(z0)))) -> c7(A__SEL(mark(x0), a__sel(mark(x1), s(mark(z0)))), MARK(x0))
   MARK(sel(x0, sel(x1, 0))) -> c7(A__SEL(mark(x0), a__sel(mark(x1), 0)), MARK(x0))
   MARK(sel(x0, sel(from(z0), x2))) -> c7(A__SEL(mark(x0), a__sel(a__from(mark(z0)), mark(x2))), MARK(x0))
   MARK(sel(x0, sel(sel(z0, z1), x2))) -> c7(A__SEL(mark(x0), a__sel(a__sel(mark(z0), mark(z1)), mark(x2))), MARK(x0))
   MARK(sel(x0, sel(cons(z0, z1), x2))) -> c7(A__SEL(mark(x0), a__sel(cons(mark(z0), z1), mark(x2))), MARK(x0))
   MARK(sel(x0, sel(s(z0), x2))) -> c7(A__SEL(mark(x0), a__sel(s(mark(z0)), mark(x2))), MARK(x0))
   MARK(sel(x0, sel(0, x2))) -> c7(A__SEL(mark(x0), a__sel(0, mark(x2))), MARK(x0))
   MARK(sel(from(z0), sel(x1, x2))) -> c7(A__SEL(a__from(mark(z0)), a__sel(mark(x1), mark(x2))), MARK(from(z0)))
   MARK(sel(sel(z0, z1), sel(x1, x2))) -> c7(A__SEL(a__sel(mark(z0), mark(z1)), a__sel(mark(x1), mark(x2))), MARK(sel(z0, z1)))
   MARK(sel(s(z0), sel(x1, x2))) -> c7(A__SEL(s(mark(z0)), a__sel(mark(x1), mark(x2))), MARK(s(z0)))
   MARK(sel(x0, sel(x1, x2))) -> c7(MARK(x0))
   MARK(sel(cons(z0, z1), sel(x1, x2))) -> c7(MARK(cons(z0, z1)))
   MARK(sel(0, sel(x1, x2))) -> c7(A__SEL(0, a__sel(mark(x1), mark(x2))))
   MARK(sel(x0, cons(from(z0), x2))) -> c7(A__SEL(mark(x0), cons(a__from(mark(z0)), x2)), MARK(x0))
   MARK(sel(x0, cons(sel(z0, z1), x2))) -> c7(A__SEL(mark(x0), cons(a__sel(mark(z0), mark(z1)), x2)), MARK(x0))
   MARK(sel(x0, cons(cons(z0, z1), x2))) -> c7(A__SEL(mark(x0), cons(cons(mark(z0), z1), x2)), MARK(x0))
   MARK(sel(x0, cons(s(z0), x2))) -> c7(A__SEL(mark(x0), cons(s(mark(z0)), x2)), MARK(x0))
   MARK(sel(x0, cons(0, x2))) -> c7(A__SEL(mark(x0), cons(0, x2)), MARK(x0))
   MARK(sel(from(z0), cons(x1, x2))) -> c7(A__SEL(a__from(mark(z0)), cons(mark(x1), x2)), MARK(from(z0)))
   MARK(sel(sel(z0, z1), cons(x1, x2))) -> c7(A__SEL(a__sel(mark(z0), mark(z1)), cons(mark(x1), x2)), MARK(sel(z0, z1)))
   MARK(sel(s(z0), cons(x1, x2))) -> c7(A__SEL(s(mark(z0)), cons(mark(x1), x2)), MARK(s(z0)))
   MARK(sel(cons(z0, z1), cons(x1, x2))) -> c7(MARK(cons(z0, z1)))
   MARK(sel(0, cons(x1, x2))) -> c7(A__SEL(0, cons(mark(x1), x2)))
   MARK(sel(from(from(z0)), x1)) -> c7(A__SEL(a__from(a__from(mark(z0))), mark(x1)), MARK(from(from(z0))))
   MARK(sel(from(sel(z0, z1)), x1)) -> c7(A__SEL(a__from(a__sel(mark(z0), mark(z1))), mark(x1)), MARK(from(sel(z0, z1))))
   MARK(sel(from(cons(z0, z1)), x1)) -> c7(A__SEL(a__from(cons(mark(z0), z1)), mark(x1)), MARK(from(cons(z0, z1))))
   MARK(sel(from(s(z0)), x1)) -> c7(A__SEL(a__from(s(mark(z0))), mark(x1)), MARK(from(s(z0))))
   MARK(sel(from(0), x1)) -> c7(A__SEL(a__from(0), mark(x1)), MARK(from(0)))
   MARK(sel(from(x0), x1)) -> c7(MARK(from(x0)))
   MARK(sel(from(x0), s(z0))) -> c7(MARK(from(x0)))
   MARK(sel(from(x0), 0)) -> c7(MARK(from(x0)))
   MARK(sel(sel(x0, from(z0)), x2)) -> c7(A__SEL(a__sel(mark(x0), a__from(mark(z0))), mark(x2)), MARK(sel(x0, from(z0))))
   MARK(sel(sel(x0, sel(z0, z1)), x2)) -> c7(A__SEL(a__sel(mark(x0), a__sel(mark(z0), mark(z1))), mark(x2)), MARK(sel(x0, sel(z0, z1))))
   MARK(sel(sel(x0, cons(z0, z1)), x2)) -> c7(A__SEL(a__sel(mark(x0), cons(mark(z0), z1)), mark(x2)), MARK(sel(x0, cons(z0, z1))))
   MARK(sel(sel(x0, s(z0)), x2)) -> c7(A__SEL(a__sel(mark(x0), s(mark(z0))), mark(x2)), MARK(sel(x0, s(z0))))
   MARK(sel(sel(x0, 0), x2)) -> c7(A__SEL(a__sel(mark(x0), 0), mark(x2)), MARK(sel(x0, 0)))
   MARK(sel(sel(from(z0), x1), x2)) -> c7(A__SEL(a__sel(a__from(mark(z0)), mark(x1)), mark(x2)), MARK(sel(from(z0), x1)))
   MARK(sel(sel(sel(z0, z1), x1), x2)) -> c7(A__SEL(a__sel(a__sel(mark(z0), mark(z1)), mark(x1)), mark(x2)), MARK(sel(sel(z0, z1), x1)))
   MARK(sel(sel(cons(z0, z1), x1), x2)) -> c7(A__SEL(a__sel(cons(mark(z0), z1), mark(x1)), mark(x2)), MARK(sel(cons(z0, z1), x1)))
   MARK(sel(sel(s(z0), x1), x2)) -> c7(A__SEL(a__sel(s(mark(z0)), mark(x1)), mark(x2)), MARK(sel(s(z0), x1)))
   MARK(sel(sel(0, x1), x2)) -> c7(A__SEL(a__sel(0, mark(x1)), mark(x2)), MARK(sel(0, x1)))
   MARK(sel(sel(x0, x1), s(z0))) -> c7(MARK(sel(x0, x1)))
   MARK(sel(sel(x0, x1), 0)) -> c7(MARK(sel(x0, x1)))
   MARK(sel(sel(x0, x1), x2)) -> c7(MARK(sel(x0, x1)))
   MARK(sel(s(from(z0)), x1)) -> c7(A__SEL(s(a__from(mark(z0))), mark(x1)), MARK(s(from(z0))))
   MARK(sel(s(sel(z0, z1)), x1)) -> c7(A__SEL(s(a__sel(mark(z0), mark(z1))), mark(x1)), MARK(s(sel(z0, z1))))
   MARK(sel(s(cons(z0, z1)), x1)) -> c7(A__SEL(s(cons(mark(z0), z1)), mark(x1)), MARK(s(cons(z0, z1))))
   MARK(sel(s(s(z0)), x1)) -> c7(A__SEL(s(s(mark(z0))), mark(x1)), MARK(s(s(z0))))
   MARK(sel(s(0), x1)) -> c7(A__SEL(s(0), mark(x1)), MARK(s(0)))
   MARK(sel(s(x0), x1)) -> c7(MARK(s(x0)))
   MARK(sel(s(x0), s(z0))) -> c7(MARK(s(x0)))
   MARK(sel(s(x0), 0)) -> c7(MARK(s(x0)))
   MARK(sel(x0, from(x1))) -> c8(A__SEL(mark(x0), cons(mark(mark(x1)), from(s(mark(x1))))), MARK(from(x1)))
   MARK(sel(x0, from(from(z0)))) -> c8(A__SEL(mark(x0), a__from(a__from(mark(z0)))), MARK(from(from(z0))))
   MARK(sel(x0, from(sel(z0, z1)))) -> c8(A__SEL(mark(x0), a__from(a__sel(mark(z0), mark(z1)))), MARK(from(sel(z0, z1))))
   MARK(sel(x0, from(cons(z0, z1)))) -> c8(A__SEL(mark(x0), a__from(cons(mark(z0), z1))), MARK(from(cons(z0, z1))))
   MARK(sel(x0, from(s(z0)))) -> c8(A__SEL(mark(x0), a__from(s(mark(z0)))), MARK(from(s(z0))))
   MARK(sel(x0, from(0))) -> c8(A__SEL(mark(x0), a__from(0)), MARK(from(0)))
   MARK(sel(from(z0), from(x1))) -> c8(A__SEL(a__from(mark(z0)), a__from(mark(x1))), MARK(from(x1)))
   MARK(sel(sel(z0, z1), from(x1))) -> c8(A__SEL(a__sel(mark(z0), mark(z1)), a__from(mark(x1))), MARK(from(x1)))
   MARK(sel(s(z0), from(x1))) -> c8(A__SEL(s(mark(z0)), a__from(mark(x1))), MARK(from(x1)))
   MARK(sel(0, from(x1))) -> c8(A__SEL(0, a__from(mark(x1))), MARK(from(x1)))
   MARK(sel(x0, from(x1))) -> c8(MARK(from(x1)))
   MARK(sel(cons(z0, z1), from(x1))) -> c8(MARK(from(x1)))
   MARK(sel(x0, sel(x1, from(z0)))) -> c8(A__SEL(mark(x0), a__sel(mark(x1), a__from(mark(z0)))), MARK(sel(x1, from(z0))))
   MARK(sel(x0, sel(x1, sel(z0, z1)))) -> c8(A__SEL(mark(x0), a__sel(mark(x1), a__sel(mark(z0), mark(z1)))), MARK(sel(x1, sel(z0, z1))))
   MARK(sel(x0, sel(x1, cons(z0, z1)))) -> c8(A__SEL(mark(x0), a__sel(mark(x1), cons(mark(z0), z1))), MARK(sel(x1, cons(z0, z1))))
   MARK(sel(x0, sel(x1, s(z0)))) -> c8(A__SEL(mark(x0), a__sel(mark(x1), s(mark(z0)))), MARK(sel(x1, s(z0))))
   MARK(sel(x0, sel(x1, 0))) -> c8(A__SEL(mark(x0), a__sel(mark(x1), 0)), MARK(sel(x1, 0)))
   MARK(sel(x0, sel(from(z0), x2))) -> c8(A__SEL(mark(x0), a__sel(a__from(mark(z0)), mark(x2))), MARK(sel(from(z0), x2)))
   MARK(sel(x0, sel(sel(z0, z1), x2))) -> c8(A__SEL(mark(x0), a__sel(a__sel(mark(z0), mark(z1)), mark(x2))), MARK(sel(sel(z0, z1), x2)))
   MARK(sel(x0, sel(cons(z0, z1), x2))) -> c8(A__SEL(mark(x0), a__sel(cons(mark(z0), z1), mark(x2))), MARK(sel(cons(z0, z1), x2)))
   MARK(sel(x0, sel(s(z0), x2))) -> c8(A__SEL(mark(x0), a__sel(s(mark(z0)), mark(x2))), MARK(sel(s(z0), x2)))
   MARK(sel(x0, sel(0, x2))) -> c8(A__SEL(mark(x0), a__sel(0, mark(x2))), MARK(sel(0, x2)))
   MARK(sel(from(z0), sel(x1, x2))) -> c8(A__SEL(a__from(mark(z0)), a__sel(mark(x1), mark(x2))), MARK(sel(x1, x2)))
   MARK(sel(sel(z0, z1), sel(x1, x2))) -> c8(A__SEL(a__sel(mark(z0), mark(z1)), a__sel(mark(x1), mark(x2))), MARK(sel(x1, x2)))
   MARK(sel(s(z0), sel(x1, x2))) -> c8(A__SEL(s(mark(z0)), a__sel(mark(x1), mark(x2))), MARK(sel(x1, x2)))
   MARK(sel(0, sel(x1, x2))) -> c8(A__SEL(0, a__sel(mark(x1), mark(x2))), MARK(sel(x1, x2)))
   MARK(sel(x0, sel(x1, x2))) -> c8(MARK(sel(x1, x2)))
   MARK(sel(cons(z0, z1), sel(x1, x2))) -> c8(MARK(sel(x1, x2)))
   MARK(sel(x0, cons(from(z0), x2))) -> c8(A__SEL(mark(x0), cons(a__from(mark(z0)), x2)), MARK(cons(from(z0), x2)))
   MARK(sel(x0, cons(sel(z0, z1), x2))) -> c8(A__SEL(mark(x0), cons(a__sel(mark(z0), mark(z1)), x2)), MARK(cons(sel(z0, z1), x2)))
   MARK(sel(x0, cons(cons(z0, z1), x2))) -> c8(A__SEL(mark(x0), cons(cons(mark(z0), z1), x2)), MARK(cons(cons(z0, z1), x2)))
   MARK(sel(x0, cons(s(z0), x2))) -> c8(A__SEL(mark(x0), cons(s(mark(z0)), x2)), MARK(cons(s(z0), x2)))
   MARK(sel(x0, cons(0, x2))) -> c8(A__SEL(mark(x0), cons(0, x2)), MARK(cons(0, x2)))
   MARK(sel(from(z0), cons(x1, x2))) -> c8(A__SEL(a__from(mark(z0)), cons(mark(x1), x2)), MARK(cons(x1, x2)))
   MARK(sel(sel(z0, z1), cons(x1, x2))) -> c8(A__SEL(a__sel(mark(z0), mark(z1)), cons(mark(x1), x2)), MARK(cons(x1, x2)))
   MARK(sel(s(z0), cons(x1, x2))) -> c8(A__SEL(s(mark(z0)), cons(mark(x1), x2)), MARK(cons(x1, x2)))
   MARK(sel(0, cons(x1, x2))) -> c8(A__SEL(0, cons(mark(x1), x2)), MARK(cons(x1, x2)))
   MARK(sel(x0, cons(x1, x2))) -> c8(MARK(cons(x1, x2)))
   MARK(sel(cons(z0, z1), cons(x1, x2))) -> c8(MARK(cons(x1, x2)))
S tuples:
   A__FROM(z0) -> c(MARK(z0))
   A__SEL(0, cons(z0, z1)) -> c2(MARK(z0))
   MARK(from(z0)) -> c6(A__FROM(mark(z0)), MARK(z0))
   MARK(cons(z0, z1)) -> c9(MARK(z0))
   MARK(s(z0)) -> c10(MARK(z0))
   A__SEL(s(x0), cons(x1, s(z0))) -> c3(MARK(x0))
   A__SEL(s(x0), cons(x1, 0)) -> c3(MARK(x0))
   A__SEL(s(cons(z0, z1)), cons(x1, x2)) -> c3(MARK(cons(z0, z1)))
   A__SEL(s(x0), cons(x1, s(z0))) -> c4(MARK(s(z0)))
   A__SEL(s(cons(z0, z1)), cons(x1, x2)) -> c4(MARK(x2))
   MARK(sel(x0, s(z0))) -> c7(MARK(x0))
   MARK(sel(x0, 0)) -> c7(MARK(x0))
   MARK(sel(cons(z0, z1), x1)) -> c7(MARK(cons(z0, z1)))
   MARK(sel(from(z0), x1)) -> c8(A__SEL(a__from(mark(z0)), mark(x1)), MARK(x1))
   MARK(sel(sel(z0, z1), x1)) -> c8(A__SEL(a__sel(mark(z0), mark(z1)), mark(x1)), MARK(x1))
   MARK(sel(s(z0), x1)) -> c8(A__SEL(s(mark(z0)), mark(x1)), MARK(x1))
   MARK(sel(0, x1)) -> c8(A__SEL(0, mark(x1)), MARK(x1))
   MARK(sel(x0, s(z0))) -> c8(MARK(s(z0)))
   MARK(sel(cons(z0, z1), x1)) -> c8(MARK(x1))
   A__SEL(s(x0), cons(x1, from(x2))) -> c3(A__SEL(mark(x0), cons(mark(mark(x2)), from(s(mark(x2))))), MARK(x0))
   A__SEL(s(x0), cons(x1, from(from(z0)))) -> c3(A__SEL(mark(x0), a__from(a__from(mark(z0)))), MARK(x0))
   A__SEL(s(x0), cons(x1, from(sel(z0, z1)))) -> c3(A__SEL(mark(x0), a__from(a__sel(mark(z0), mark(z1)))), MARK(x0))
   A__SEL(s(x0), cons(x1, from(cons(z0, z1)))) -> c3(A__SEL(mark(x0), a__from(cons(mark(z0), z1))), MARK(x0))
   A__SEL(s(x0), cons(x1, from(s(z0)))) -> c3(A__SEL(mark(x0), a__from(s(mark(z0)))), MARK(x0))
   A__SEL(s(x0), cons(x1, from(0))) -> c3(A__SEL(mark(x0), a__from(0)), MARK(x0))
   A__SEL(s(from(z0)), cons(x1, from(x2))) -> c3(A__SEL(a__from(mark(z0)), a__from(mark(x2))), MARK(from(z0)))
   A__SEL(s(sel(z0, z1)), cons(x1, from(x2))) -> c3(A__SEL(a__sel(mark(z0), mark(z1)), a__from(mark(x2))), MARK(sel(z0, z1)))
   A__SEL(s(s(z0)), cons(x1, from(x2))) -> c3(A__SEL(s(mark(z0)), a__from(mark(x2))), MARK(s(z0)))
   A__SEL(s(x0), cons(x1, from(x2))) -> c3(MARK(x0))
   A__SEL(s(cons(z0, z1)), cons(x1, from(x2))) -> c3(MARK(cons(z0, z1)))
   A__SEL(s(0), cons(x1, from(x2))) -> c3(A__SEL(0, a__from(mark(x2))))
   A__SEL(s(x0), cons(x1, sel(x2, from(z0)))) -> c3(A__SEL(mark(x0), a__sel(mark(x2), a__from(mark(z0)))), MARK(x0))
   A__SEL(s(x0), cons(x1, sel(x2, sel(z0, z1)))) -> c3(A__SEL(mark(x0), a__sel(mark(x2), a__sel(mark(z0), mark(z1)))), MARK(x0))
   A__SEL(s(x0), cons(x1, sel(x2, cons(z0, z1)))) -> c3(A__SEL(mark(x0), a__sel(mark(x2), cons(mark(z0), z1))), MARK(x0))
   A__SEL(s(x0), cons(x1, sel(x2, s(z0)))) -> c3(A__SEL(mark(x0), a__sel(mark(x2), s(mark(z0)))), MARK(x0))
   A__SEL(s(x0), cons(x1, sel(x2, 0))) -> c3(A__SEL(mark(x0), a__sel(mark(x2), 0)), MARK(x0))
   A__SEL(s(x0), cons(x1, sel(from(z0), x3))) -> c3(A__SEL(mark(x0), a__sel(a__from(mark(z0)), mark(x3))), MARK(x0))
   A__SEL(s(x0), cons(x1, sel(sel(z0, z1), x3))) -> c3(A__SEL(mark(x0), a__sel(a__sel(mark(z0), mark(z1)), mark(x3))), MARK(x0))
   A__SEL(s(x0), cons(x1, sel(cons(z0, z1), x3))) -> c3(A__SEL(mark(x0), a__sel(cons(mark(z0), z1), mark(x3))), MARK(x0))
   A__SEL(s(x0), cons(x1, sel(s(z0), x3))) -> c3(A__SEL(mark(x0), a__sel(s(mark(z0)), mark(x3))), MARK(x0))
   A__SEL(s(x0), cons(x1, sel(0, x3))) -> c3(A__SEL(mark(x0), a__sel(0, mark(x3))), MARK(x0))
   A__SEL(s(from(z0)), cons(x1, sel(x2, x3))) -> c3(A__SEL(a__from(mark(z0)), a__sel(mark(x2), mark(x3))), MARK(from(z0)))
   A__SEL(s(sel(z0, z1)), cons(x1, sel(x2, x3))) -> c3(A__SEL(a__sel(mark(z0), mark(z1)), a__sel(mark(x2), mark(x3))), MARK(sel(z0, z1)))
   A__SEL(s(s(z0)), cons(x1, sel(x2, x3))) -> c3(A__SEL(s(mark(z0)), a__sel(mark(x2), mark(x3))), MARK(s(z0)))
   A__SEL(s(x0), cons(x1, sel(x2, x3))) -> c3(MARK(x0))
   A__SEL(s(cons(z0, z1)), cons(x1, sel(x2, x3))) -> c3(MARK(cons(z0, z1)))
   A__SEL(s(0), cons(x1, sel(x2, x3))) -> c3(A__SEL(0, a__sel(mark(x2), mark(x3))))
   A__SEL(s(x0), cons(x1, cons(from(z0), x3))) -> c3(A__SEL(mark(x0), cons(a__from(mark(z0)), x3)), MARK(x0))
   A__SEL(s(x0), cons(x1, cons(sel(z0, z1), x3))) -> c3(A__SEL(mark(x0), cons(a__sel(mark(z0), mark(z1)), x3)), MARK(x0))
   A__SEL(s(x0), cons(x1, cons(cons(z0, z1), x3))) -> c3(A__SEL(mark(x0), cons(cons(mark(z0), z1), x3)), MARK(x0))
   A__SEL(s(x0), cons(x1, cons(s(z0), x3))) -> c3(A__SEL(mark(x0), cons(s(mark(z0)), x3)), MARK(x0))
   A__SEL(s(x0), cons(x1, cons(0, x3))) -> c3(A__SEL(mark(x0), cons(0, x3)), MARK(x0))
   A__SEL(s(from(z0)), cons(x1, cons(x2, x3))) -> c3(A__SEL(a__from(mark(z0)), cons(mark(x2), x3)), MARK(from(z0)))
   A__SEL(s(sel(z0, z1)), cons(x1, cons(x2, x3))) -> c3(A__SEL(a__sel(mark(z0), mark(z1)), cons(mark(x2), x3)), MARK(sel(z0, z1)))
   A__SEL(s(s(z0)), cons(x1, cons(x2, x3))) -> c3(A__SEL(s(mark(z0)), cons(mark(x2), x3)), MARK(s(z0)))
   A__SEL(s(cons(z0, z1)), cons(x1, cons(x2, x3))) -> c3(MARK(cons(z0, z1)))
   A__SEL(s(0), cons(x1, cons(x2, x3))) -> c3(A__SEL(0, cons(mark(x2), x3)))
   A__SEL(s(from(from(z0))), cons(x1, x2)) -> c3(A__SEL(a__from(a__from(mark(z0))), mark(x2)), MARK(from(from(z0))))
   A__SEL(s(from(sel(z0, z1))), cons(x1, x2)) -> c3(A__SEL(a__from(a__sel(mark(z0), mark(z1))), mark(x2)), MARK(from(sel(z0, z1))))
   A__SEL(s(from(cons(z0, z1))), cons(x1, x2)) -> c3(A__SEL(a__from(cons(mark(z0), z1)), mark(x2)), MARK(from(cons(z0, z1))))
   A__SEL(s(from(s(z0))), cons(x1, x2)) -> c3(A__SEL(a__from(s(mark(z0))), mark(x2)), MARK(from(s(z0))))
   A__SEL(s(from(0)), cons(x1, x2)) -> c3(A__SEL(a__from(0), mark(x2)), MARK(from(0)))
   A__SEL(s(from(x0)), cons(x1, x2)) -> c3(MARK(from(x0)))
   A__SEL(s(from(x0)), cons(x1, s(z0))) -> c3(MARK(from(x0)))
   A__SEL(s(from(x0)), cons(x1, 0)) -> c3(MARK(from(x0)))
   A__SEL(s(sel(x0, from(z0))), cons(x2, x3)) -> c3(A__SEL(a__sel(mark(x0), a__from(mark(z0))), mark(x3)), MARK(sel(x0, from(z0))))
   A__SEL(s(sel(x0, sel(z0, z1))), cons(x2, x3)) -> c3(A__SEL(a__sel(mark(x0), a__sel(mark(z0), mark(z1))), mark(x3)), MARK(sel(x0, sel(z0, z1))))
   A__SEL(s(sel(x0, cons(z0, z1))), cons(x2, x3)) -> c3(A__SEL(a__sel(mark(x0), cons(mark(z0), z1)), mark(x3)), MARK(sel(x0, cons(z0, z1))))
   A__SEL(s(sel(x0, s(z0))), cons(x2, x3)) -> c3(A__SEL(a__sel(mark(x0), s(mark(z0))), mark(x3)), MARK(sel(x0, s(z0))))
   A__SEL(s(sel(x0, 0)), cons(x2, x3)) -> c3(A__SEL(a__sel(mark(x0), 0), mark(x3)), MARK(sel(x0, 0)))
   A__SEL(s(sel(from(z0), x1)), cons(x2, x3)) -> c3(A__SEL(a__sel(a__from(mark(z0)), mark(x1)), mark(x3)), MARK(sel(from(z0), x1)))
   A__SEL(s(sel(sel(z0, z1), x1)), cons(x2, x3)) -> c3(A__SEL(a__sel(a__sel(mark(z0), mark(z1)), mark(x1)), mark(x3)), MARK(sel(sel(z0, z1), x1)))
   A__SEL(s(sel(cons(z0, z1), x1)), cons(x2, x3)) -> c3(A__SEL(a__sel(cons(mark(z0), z1), mark(x1)), mark(x3)), MARK(sel(cons(z0, z1), x1)))
   A__SEL(s(sel(s(z0), x1)), cons(x2, x3)) -> c3(A__SEL(a__sel(s(mark(z0)), mark(x1)), mark(x3)), MARK(sel(s(z0), x1)))
   A__SEL(s(sel(0, x1)), cons(x2, x3)) -> c3(A__SEL(a__sel(0, mark(x1)), mark(x3)), MARK(sel(0, x1)))
   A__SEL(s(sel(x0, x1)), cons(x2, s(z0))) -> c3(MARK(sel(x0, x1)))
   A__SEL(s(sel(x0, x1)), cons(x2, 0)) -> c3(MARK(sel(x0, x1)))
   A__SEL(s(sel(x0, x1)), cons(x2, x3)) -> c3(MARK(sel(x0, x1)))
   A__SEL(s(s(from(z0))), cons(x1, x2)) -> c3(A__SEL(s(a__from(mark(z0))), mark(x2)), MARK(s(from(z0))))
   A__SEL(s(s(sel(z0, z1))), cons(x1, x2)) -> c3(A__SEL(s(a__sel(mark(z0), mark(z1))), mark(x2)), MARK(s(sel(z0, z1))))
   A__SEL(s(s(cons(z0, z1))), cons(x1, x2)) -> c3(A__SEL(s(cons(mark(z0), z1)), mark(x2)), MARK(s(cons(z0, z1))))
   A__SEL(s(s(s(z0))), cons(x1, x2)) -> c3(A__SEL(s(s(mark(z0))), mark(x2)), MARK(s(s(z0))))
   A__SEL(s(s(0)), cons(x1, x2)) -> c3(A__SEL(s(0), mark(x2)), MARK(s(0)))
   A__SEL(s(s(x0)), cons(x1, x2)) -> c3(MARK(s(x0)))
   A__SEL(s(s(x0)), cons(x1, s(z0))) -> c3(MARK(s(x0)))
   A__SEL(s(s(x0)), cons(x1, 0)) -> c3(MARK(s(x0)))
   A__SEL(s(x0), cons(x1, from(x2))) -> c4(A__SEL(mark(x0), cons(mark(mark(x2)), from(s(mark(x2))))), MARK(from(x2)))
   A__SEL(s(x0), cons(x1, from(from(z0)))) -> c4(A__SEL(mark(x0), a__from(a__from(mark(z0)))), MARK(from(from(z0))))
   A__SEL(s(x0), cons(x1, from(sel(z0, z1)))) -> c4(A__SEL(mark(x0), a__from(a__sel(mark(z0), mark(z1)))), MARK(from(sel(z0, z1))))
   A__SEL(s(x0), cons(x1, from(cons(z0, z1)))) -> c4(A__SEL(mark(x0), a__from(cons(mark(z0), z1))), MARK(from(cons(z0, z1))))
   A__SEL(s(x0), cons(x1, from(s(z0)))) -> c4(A__SEL(mark(x0), a__from(s(mark(z0)))), MARK(from(s(z0))))
   A__SEL(s(x0), cons(x1, from(0))) -> c4(A__SEL(mark(x0), a__from(0)), MARK(from(0)))
   A__SEL(s(from(z0)), cons(x1, from(x2))) -> c4(A__SEL(a__from(mark(z0)), a__from(mark(x2))), MARK(from(x2)))
   A__SEL(s(sel(z0, z1)), cons(x1, from(x2))) -> c4(A__SEL(a__sel(mark(z0), mark(z1)), a__from(mark(x2))), MARK(from(x2)))
   A__SEL(s(s(z0)), cons(x1, from(x2))) -> c4(A__SEL(s(mark(z0)), a__from(mark(x2))), MARK(from(x2)))
   A__SEL(s(0), cons(x1, from(x2))) -> c4(A__SEL(0, a__from(mark(x2))), MARK(from(x2)))
   A__SEL(s(x0), cons(x1, from(x2))) -> c4(MARK(from(x2)))
   A__SEL(s(cons(z0, z1)), cons(x1, from(x2))) -> c4(MARK(from(x2)))
   A__SEL(s(x0), cons(x1, sel(x2, from(z0)))) -> c4(A__SEL(mark(x0), a__sel(mark(x2), a__from(mark(z0)))), MARK(sel(x2, from(z0))))
   A__SEL(s(x0), cons(x1, sel(x2, sel(z0, z1)))) -> c4(A__SEL(mark(x0), a__sel(mark(x2), a__sel(mark(z0), mark(z1)))), MARK(sel(x2, sel(z0, z1))))
   A__SEL(s(x0), cons(x1, sel(x2, cons(z0, z1)))) -> c4(A__SEL(mark(x0), a__sel(mark(x2), cons(mark(z0), z1))), MARK(sel(x2, cons(z0, z1))))
   A__SEL(s(x0), cons(x1, sel(x2, s(z0)))) -> c4(A__SEL(mark(x0), a__sel(mark(x2), s(mark(z0)))), MARK(sel(x2, s(z0))))
   A__SEL(s(x0), cons(x1, sel(x2, 0))) -> c4(A__SEL(mark(x0), a__sel(mark(x2), 0)), MARK(sel(x2, 0)))
   A__SEL(s(x0), cons(x1, sel(from(z0), x3))) -> c4(A__SEL(mark(x0), a__sel(a__from(mark(z0)), mark(x3))), MARK(sel(from(z0), x3)))
   A__SEL(s(x0), cons(x1, sel(sel(z0, z1), x3))) -> c4(A__SEL(mark(x0), a__sel(a__sel(mark(z0), mark(z1)), mark(x3))), MARK(sel(sel(z0, z1), x3)))
   A__SEL(s(x0), cons(x1, sel(cons(z0, z1), x3))) -> c4(A__SEL(mark(x0), a__sel(cons(mark(z0), z1), mark(x3))), MARK(sel(cons(z0, z1), x3)))
   A__SEL(s(x0), cons(x1, sel(s(z0), x3))) -> c4(A__SEL(mark(x0), a__sel(s(mark(z0)), mark(x3))), MARK(sel(s(z0), x3)))
   A__SEL(s(x0), cons(x1, sel(0, x3))) -> c4(A__SEL(mark(x0), a__sel(0, mark(x3))), MARK(sel(0, x3)))
   A__SEL(s(from(z0)), cons(x1, sel(x2, x3))) -> c4(A__SEL(a__from(mark(z0)), a__sel(mark(x2), mark(x3))), MARK(sel(x2, x3)))
   A__SEL(s(sel(z0, z1)), cons(x1, sel(x2, x3))) -> c4(A__SEL(a__sel(mark(z0), mark(z1)), a__sel(mark(x2), mark(x3))), MARK(sel(x2, x3)))
   A__SEL(s(s(z0)), cons(x1, sel(x2, x3))) -> c4(A__SEL(s(mark(z0)), a__sel(mark(x2), mark(x3))), MARK(sel(x2, x3)))
   A__SEL(s(0), cons(x1, sel(x2, x3))) -> c4(A__SEL(0, a__sel(mark(x2), mark(x3))), MARK(sel(x2, x3)))
   A__SEL(s(x0), cons(x1, sel(x2, x3))) -> c4(MARK(sel(x2, x3)))
   A__SEL(s(cons(z0, z1)), cons(x1, sel(x2, x3))) -> c4(MARK(sel(x2, x3)))
   A__SEL(s(x0), cons(x1, cons(from(z0), x3))) -> c4(A__SEL(mark(x0), cons(a__from(mark(z0)), x3)), MARK(cons(from(z0), x3)))
   A__SEL(s(x0), cons(x1, cons(sel(z0, z1), x3))) -> c4(A__SEL(mark(x0), cons(a__sel(mark(z0), mark(z1)), x3)), MARK(cons(sel(z0, z1), x3)))
   A__SEL(s(x0), cons(x1, cons(cons(z0, z1), x3))) -> c4(A__SEL(mark(x0), cons(cons(mark(z0), z1), x3)), MARK(cons(cons(z0, z1), x3)))
   A__SEL(s(x0), cons(x1, cons(s(z0), x3))) -> c4(A__SEL(mark(x0), cons(s(mark(z0)), x3)), MARK(cons(s(z0), x3)))
   A__SEL(s(x0), cons(x1, cons(0, x3))) -> c4(A__SEL(mark(x0), cons(0, x3)), MARK(cons(0, x3)))
   A__SEL(s(from(z0)), cons(x1, cons(x2, x3))) -> c4(A__SEL(a__from(mark(z0)), cons(mark(x2), x3)), MARK(cons(x2, x3)))
   A__SEL(s(sel(z0, z1)), cons(x1, cons(x2, x3))) -> c4(A__SEL(a__sel(mark(z0), mark(z1)), cons(mark(x2), x3)), MARK(cons(x2, x3)))
   A__SEL(s(s(z0)), cons(x1, cons(x2, x3))) -> c4(A__SEL(s(mark(z0)), cons(mark(x2), x3)), MARK(cons(x2, x3)))
   A__SEL(s(0), cons(x1, cons(x2, x3))) -> c4(A__SEL(0, cons(mark(x2), x3)), MARK(cons(x2, x3)))
   A__SEL(s(x0), cons(x1, cons(x2, x3))) -> c4(MARK(cons(x2, x3)))
   A__SEL(s(cons(z0, z1)), cons(x1, cons(x2, x3))) -> c4(MARK(cons(x2, x3)))
   A__SEL(s(from(from(z0))), cons(x1, x2)) -> c4(A__SEL(a__from(a__from(mark(z0))), mark(x2)), MARK(x2))
   A__SEL(s(from(sel(z0, z1))), cons(x1, x2)) -> c4(A__SEL(a__from(a__sel(mark(z0), mark(z1))), mark(x2)), MARK(x2))
   A__SEL(s(from(cons(z0, z1))), cons(x1, x2)) -> c4(A__SEL(a__from(cons(mark(z0), z1)), mark(x2)), MARK(x2))
   A__SEL(s(from(s(z0))), cons(x1, x2)) -> c4(A__SEL(a__from(s(mark(z0))), mark(x2)), MARK(x2))
   A__SEL(s(from(0)), cons(x1, x2)) -> c4(A__SEL(a__from(0), mark(x2)), MARK(x2))
   A__SEL(s(from(x0)), cons(x1, s(z0))) -> c4(MARK(s(z0)))
   A__SEL(s(from(x0)), cons(x1, x2)) -> c4(MARK(x2))
   A__SEL(s(sel(x0, from(z0))), cons(x2, x3)) -> c4(A__SEL(a__sel(mark(x0), a__from(mark(z0))), mark(x3)), MARK(x3))
   A__SEL(s(sel(x0, sel(z0, z1))), cons(x2, x3)) -> c4(A__SEL(a__sel(mark(x0), a__sel(mark(z0), mark(z1))), mark(x3)), MARK(x3))
   A__SEL(s(sel(x0, cons(z0, z1))), cons(x2, x3)) -> c4(A__SEL(a__sel(mark(x0), cons(mark(z0), z1)), mark(x3)), MARK(x3))
   A__SEL(s(sel(x0, s(z0))), cons(x2, x3)) -> c4(A__SEL(a__sel(mark(x0), s(mark(z0))), mark(x3)), MARK(x3))
   A__SEL(s(sel(x0, 0)), cons(x2, x3)) -> c4(A__SEL(a__sel(mark(x0), 0), mark(x3)), MARK(x3))
   A__SEL(s(sel(from(z0), x1)), cons(x2, x3)) -> c4(A__SEL(a__sel(a__from(mark(z0)), mark(x1)), mark(x3)), MARK(x3))
   A__SEL(s(sel(sel(z0, z1), x1)), cons(x2, x3)) -> c4(A__SEL(a__sel(a__sel(mark(z0), mark(z1)), mark(x1)), mark(x3)), MARK(x3))
   A__SEL(s(sel(cons(z0, z1), x1)), cons(x2, x3)) -> c4(A__SEL(a__sel(cons(mark(z0), z1), mark(x1)), mark(x3)), MARK(x3))
   A__SEL(s(sel(s(z0), x1)), cons(x2, x3)) -> c4(A__SEL(a__sel(s(mark(z0)), mark(x1)), mark(x3)), MARK(x3))
   A__SEL(s(sel(0, x1)), cons(x2, x3)) -> c4(A__SEL(a__sel(0, mark(x1)), mark(x3)), MARK(x3))
   A__SEL(s(sel(x0, x1)), cons(x2, s(z0))) -> c4(MARK(s(z0)))
   A__SEL(s(sel(x0, x1)), cons(x2, x3)) -> c4(MARK(x3))
   A__SEL(s(s(from(z0))), cons(x1, x2)) -> c4(A__SEL(s(a__from(mark(z0))), mark(x2)), MARK(x2))
   A__SEL(s(s(sel(z0, z1))), cons(x1, x2)) -> c4(A__SEL(s(a__sel(mark(z0), mark(z1))), mark(x2)), MARK(x2))
   A__SEL(s(s(cons(z0, z1))), cons(x1, x2)) -> c4(A__SEL(s(cons(mark(z0), z1)), mark(x2)), MARK(x2))
   A__SEL(s(s(s(z0))), cons(x1, x2)) -> c4(A__SEL(s(s(mark(z0))), mark(x2)), MARK(x2))
   A__SEL(s(s(0)), cons(x1, x2)) -> c4(A__SEL(s(0), mark(x2)), MARK(x2))
   A__SEL(s(s(x0)), cons(x1, s(z0))) -> c4(MARK(s(z0)))
   A__SEL(s(0), cons(x0, s(z0))) -> c4(MARK(s(z0)))
   MARK(sel(x0, from(x1))) -> c7(A__SEL(mark(x0), cons(mark(mark(x1)), from(s(mark(x1))))), MARK(x0))
   MARK(sel(x0, from(from(z0)))) -> c7(A__SEL(mark(x0), a__from(a__from(mark(z0)))), MARK(x0))
   MARK(sel(x0, from(sel(z0, z1)))) -> c7(A__SEL(mark(x0), a__from(a__sel(mark(z0), mark(z1)))), MARK(x0))
   MARK(sel(x0, from(cons(z0, z1)))) -> c7(A__SEL(mark(x0), a__from(cons(mark(z0), z1))), MARK(x0))
   MARK(sel(x0, from(s(z0)))) -> c7(A__SEL(mark(x0), a__from(s(mark(z0)))), MARK(x0))
   MARK(sel(x0, from(0))) -> c7(A__SEL(mark(x0), a__from(0)), MARK(x0))
   MARK(sel(from(z0), from(x1))) -> c7(A__SEL(a__from(mark(z0)), a__from(mark(x1))), MARK(from(z0)))
   MARK(sel(sel(z0, z1), from(x1))) -> c7(A__SEL(a__sel(mark(z0), mark(z1)), a__from(mark(x1))), MARK(sel(z0, z1)))
   MARK(sel(s(z0), from(x1))) -> c7(A__SEL(s(mark(z0)), a__from(mark(x1))), MARK(s(z0)))
   MARK(sel(x0, from(x1))) -> c7(MARK(x0))
   MARK(sel(cons(z0, z1), from(x1))) -> c7(MARK(cons(z0, z1)))
   MARK(sel(0, from(x1))) -> c7(A__SEL(0, a__from(mark(x1))))
   MARK(sel(x0, sel(x1, from(z0)))) -> c7(A__SEL(mark(x0), a__sel(mark(x1), a__from(mark(z0)))), MARK(x0))
   MARK(sel(x0, sel(x1, sel(z0, z1)))) -> c7(A__SEL(mark(x0), a__sel(mark(x1), a__sel(mark(z0), mark(z1)))), MARK(x0))
   MARK(sel(x0, sel(x1, cons(z0, z1)))) -> c7(A__SEL(mark(x0), a__sel(mark(x1), cons(mark(z0), z1))), MARK(x0))
   MARK(sel(x0, sel(x1, s(z0)))) -> c7(A__SEL(mark(x0), a__sel(mark(x1), s(mark(z0)))), MARK(x0))
   MARK(sel(x0, sel(x1, 0))) -> c7(A__SEL(mark(x0), a__sel(mark(x1), 0)), MARK(x0))
   MARK(sel(x0, sel(from(z0), x2))) -> c7(A__SEL(mark(x0), a__sel(a__from(mark(z0)), mark(x2))), MARK(x0))
   MARK(sel(x0, sel(sel(z0, z1), x2))) -> c7(A__SEL(mark(x0), a__sel(a__sel(mark(z0), mark(z1)), mark(x2))), MARK(x0))
   MARK(sel(x0, sel(cons(z0, z1), x2))) -> c7(A__SEL(mark(x0), a__sel(cons(mark(z0), z1), mark(x2))), MARK(x0))
   MARK(sel(x0, sel(s(z0), x2))) -> c7(A__SEL(mark(x0), a__sel(s(mark(z0)), mark(x2))), MARK(x0))
   MARK(sel(x0, sel(0, x2))) -> c7(A__SEL(mark(x0), a__sel(0, mark(x2))), MARK(x0))
   MARK(sel(from(z0), sel(x1, x2))) -> c7(A__SEL(a__from(mark(z0)), a__sel(mark(x1), mark(x2))), MARK(from(z0)))
   MARK(sel(sel(z0, z1), sel(x1, x2))) -> c7(A__SEL(a__sel(mark(z0), mark(z1)), a__sel(mark(x1), mark(x2))), MARK(sel(z0, z1)))
   MARK(sel(s(z0), sel(x1, x2))) -> c7(A__SEL(s(mark(z0)), a__sel(mark(x1), mark(x2))), MARK(s(z0)))
   MARK(sel(x0, sel(x1, x2))) -> c7(MARK(x0))
   MARK(sel(cons(z0, z1), sel(x1, x2))) -> c7(MARK(cons(z0, z1)))
   MARK(sel(0, sel(x1, x2))) -> c7(A__SEL(0, a__sel(mark(x1), mark(x2))))
   MARK(sel(x0, cons(from(z0), x2))) -> c7(A__SEL(mark(x0), cons(a__from(mark(z0)), x2)), MARK(x0))
   MARK(sel(x0, cons(sel(z0, z1), x2))) -> c7(A__SEL(mark(x0), cons(a__sel(mark(z0), mark(z1)), x2)), MARK(x0))
   MARK(sel(x0, cons(cons(z0, z1), x2))) -> c7(A__SEL(mark(x0), cons(cons(mark(z0), z1), x2)), MARK(x0))
   MARK(sel(x0, cons(s(z0), x2))) -> c7(A__SEL(mark(x0), cons(s(mark(z0)), x2)), MARK(x0))
   MARK(sel(x0, cons(0, x2))) -> c7(A__SEL(mark(x0), cons(0, x2)), MARK(x0))
   MARK(sel(from(z0), cons(x1, x2))) -> c7(A__SEL(a__from(mark(z0)), cons(mark(x1), x2)), MARK(from(z0)))
   MARK(sel(sel(z0, z1), cons(x1, x2))) -> c7(A__SEL(a__sel(mark(z0), mark(z1)), cons(mark(x1), x2)), MARK(sel(z0, z1)))
   MARK(sel(s(z0), cons(x1, x2))) -> c7(A__SEL(s(mark(z0)), cons(mark(x1), x2)), MARK(s(z0)))
   MARK(sel(cons(z0, z1), cons(x1, x2))) -> c7(MARK(cons(z0, z1)))
   MARK(sel(0, cons(x1, x2))) -> c7(A__SEL(0, cons(mark(x1), x2)))
   MARK(sel(from(from(z0)), x1)) -> c7(A__SEL(a__from(a__from(mark(z0))), mark(x1)), MARK(from(from(z0))))
   MARK(sel(from(sel(z0, z1)), x1)) -> c7(A__SEL(a__from(a__sel(mark(z0), mark(z1))), mark(x1)), MARK(from(sel(z0, z1))))
   MARK(sel(from(cons(z0, z1)), x1)) -> c7(A__SEL(a__from(cons(mark(z0), z1)), mark(x1)), MARK(from(cons(z0, z1))))
   MARK(sel(from(s(z0)), x1)) -> c7(A__SEL(a__from(s(mark(z0))), mark(x1)), MARK(from(s(z0))))
   MARK(sel(from(0), x1)) -> c7(A__SEL(a__from(0), mark(x1)), MARK(from(0)))
   MARK(sel(from(x0), x1)) -> c7(MARK(from(x0)))
   MARK(sel(from(x0), s(z0))) -> c7(MARK(from(x0)))
   MARK(sel(from(x0), 0)) -> c7(MARK(from(x0)))
   MARK(sel(sel(x0, from(z0)), x2)) -> c7(A__SEL(a__sel(mark(x0), a__from(mark(z0))), mark(x2)), MARK(sel(x0, from(z0))))
   MARK(sel(sel(x0, sel(z0, z1)), x2)) -> c7(A__SEL(a__sel(mark(x0), a__sel(mark(z0), mark(z1))), mark(x2)), MARK(sel(x0, sel(z0, z1))))
   MARK(sel(sel(x0, cons(z0, z1)), x2)) -> c7(A__SEL(a__sel(mark(x0), cons(mark(z0), z1)), mark(x2)), MARK(sel(x0, cons(z0, z1))))
   MARK(sel(sel(x0, s(z0)), x2)) -> c7(A__SEL(a__sel(mark(x0), s(mark(z0))), mark(x2)), MARK(sel(x0, s(z0))))
   MARK(sel(sel(x0, 0), x2)) -> c7(A__SEL(a__sel(mark(x0), 0), mark(x2)), MARK(sel(x0, 0)))
   MARK(sel(sel(from(z0), x1), x2)) -> c7(A__SEL(a__sel(a__from(mark(z0)), mark(x1)), mark(x2)), MARK(sel(from(z0), x1)))
   MARK(sel(sel(sel(z0, z1), x1), x2)) -> c7(A__SEL(a__sel(a__sel(mark(z0), mark(z1)), mark(x1)), mark(x2)), MARK(sel(sel(z0, z1), x1)))
   MARK(sel(sel(cons(z0, z1), x1), x2)) -> c7(A__SEL(a__sel(cons(mark(z0), z1), mark(x1)), mark(x2)), MARK(sel(cons(z0, z1), x1)))
   MARK(sel(sel(s(z0), x1), x2)) -> c7(A__SEL(a__sel(s(mark(z0)), mark(x1)), mark(x2)), MARK(sel(s(z0), x1)))
   MARK(sel(sel(0, x1), x2)) -> c7(A__SEL(a__sel(0, mark(x1)), mark(x2)), MARK(sel(0, x1)))
   MARK(sel(sel(x0, x1), s(z0))) -> c7(MARK(sel(x0, x1)))
   MARK(sel(sel(x0, x1), 0)) -> c7(MARK(sel(x0, x1)))
   MARK(sel(sel(x0, x1), x2)) -> c7(MARK(sel(x0, x1)))
   MARK(sel(s(from(z0)), x1)) -> c7(A__SEL(s(a__from(mark(z0))), mark(x1)), MARK(s(from(z0))))
   MARK(sel(s(sel(z0, z1)), x1)) -> c7(A__SEL(s(a__sel(mark(z0), mark(z1))), mark(x1)), MARK(s(sel(z0, z1))))
   MARK(sel(s(cons(z0, z1)), x1)) -> c7(A__SEL(s(cons(mark(z0), z1)), mark(x1)), MARK(s(cons(z0, z1))))
   MARK(sel(s(s(z0)), x1)) -> c7(A__SEL(s(s(mark(z0))), mark(x1)), MARK(s(s(z0))))
   MARK(sel(s(0), x1)) -> c7(A__SEL(s(0), mark(x1)), MARK(s(0)))
   MARK(sel(s(x0), x1)) -> c7(MARK(s(x0)))
   MARK(sel(s(x0), s(z0))) -> c7(MARK(s(x0)))
   MARK(sel(s(x0), 0)) -> c7(MARK(s(x0)))
   MARK(sel(x0, from(x1))) -> c8(A__SEL(mark(x0), cons(mark(mark(x1)), from(s(mark(x1))))), MARK(from(x1)))
   MARK(sel(x0, from(from(z0)))) -> c8(A__SEL(mark(x0), a__from(a__from(mark(z0)))), MARK(from(from(z0))))
   MARK(sel(x0, from(sel(z0, z1)))) -> c8(A__SEL(mark(x0), a__from(a__sel(mark(z0), mark(z1)))), MARK(from(sel(z0, z1))))
   MARK(sel(x0, from(cons(z0, z1)))) -> c8(A__SEL(mark(x0), a__from(cons(mark(z0), z1))), MARK(from(cons(z0, z1))))
   MARK(sel(x0, from(s(z0)))) -> c8(A__SEL(mark(x0), a__from(s(mark(z0)))), MARK(from(s(z0))))
   MARK(sel(x0, from(0))) -> c8(A__SEL(mark(x0), a__from(0)), MARK(from(0)))
   MARK(sel(from(z0), from(x1))) -> c8(A__SEL(a__from(mark(z0)), a__from(mark(x1))), MARK(from(x1)))
   MARK(sel(sel(z0, z1), from(x1))) -> c8(A__SEL(a__sel(mark(z0), mark(z1)), a__from(mark(x1))), MARK(from(x1)))
   MARK(sel(s(z0), from(x1))) -> c8(A__SEL(s(mark(z0)), a__from(mark(x1))), MARK(from(x1)))
   MARK(sel(0, from(x1))) -> c8(A__SEL(0, a__from(mark(x1))), MARK(from(x1)))
   MARK(sel(x0, from(x1))) -> c8(MARK(from(x1)))
   MARK(sel(cons(z0, z1), from(x1))) -> c8(MARK(from(x1)))
   MARK(sel(x0, sel(x1, from(z0)))) -> c8(A__SEL(mark(x0), a__sel(mark(x1), a__from(mark(z0)))), MARK(sel(x1, from(z0))))
   MARK(sel(x0, sel(x1, sel(z0, z1)))) -> c8(A__SEL(mark(x0), a__sel(mark(x1), a__sel(mark(z0), mark(z1)))), MARK(sel(x1, sel(z0, z1))))
   MARK(sel(x0, sel(x1, cons(z0, z1)))) -> c8(A__SEL(mark(x0), a__sel(mark(x1), cons(mark(z0), z1))), MARK(sel(x1, cons(z0, z1))))
   MARK(sel(x0, sel(x1, s(z0)))) -> c8(A__SEL(mark(x0), a__sel(mark(x1), s(mark(z0)))), MARK(sel(x1, s(z0))))
   MARK(sel(x0, sel(x1, 0))) -> c8(A__SEL(mark(x0), a__sel(mark(x1), 0)), MARK(sel(x1, 0)))
   MARK(sel(x0, sel(from(z0), x2))) -> c8(A__SEL(mark(x0), a__sel(a__from(mark(z0)), mark(x2))), MARK(sel(from(z0), x2)))
   MARK(sel(x0, sel(sel(z0, z1), x2))) -> c8(A__SEL(mark(x0), a__sel(a__sel(mark(z0), mark(z1)), mark(x2))), MARK(sel(sel(z0, z1), x2)))
   MARK(sel(x0, sel(cons(z0, z1), x2))) -> c8(A__SEL(mark(x0), a__sel(cons(mark(z0), z1), mark(x2))), MARK(sel(cons(z0, z1), x2)))
   MARK(sel(x0, sel(s(z0), x2))) -> c8(A__SEL(mark(x0), a__sel(s(mark(z0)), mark(x2))), MARK(sel(s(z0), x2)))
   MARK(sel(x0, sel(0, x2))) -> c8(A__SEL(mark(x0), a__sel(0, mark(x2))), MARK(sel(0, x2)))
   MARK(sel(from(z0), sel(x1, x2))) -> c8(A__SEL(a__from(mark(z0)), a__sel(mark(x1), mark(x2))), MARK(sel(x1, x2)))
   MARK(sel(sel(z0, z1), sel(x1, x2))) -> c8(A__SEL(a__sel(mark(z0), mark(z1)), a__sel(mark(x1), mark(x2))), MARK(sel(x1, x2)))
   MARK(sel(s(z0), sel(x1, x2))) -> c8(A__SEL(s(mark(z0)), a__sel(mark(x1), mark(x2))), MARK(sel(x1, x2)))
   MARK(sel(0, sel(x1, x2))) -> c8(A__SEL(0, a__sel(mark(x1), mark(x2))), MARK(sel(x1, x2)))
   MARK(sel(x0, sel(x1, x2))) -> c8(MARK(sel(x1, x2)))
   MARK(sel(cons(z0, z1), sel(x1, x2))) -> c8(MARK(sel(x1, x2)))
   MARK(sel(x0, cons(from(z0), x2))) -> c8(A__SEL(mark(x0), cons(a__from(mark(z0)), x2)), MARK(cons(from(z0), x2)))
   MARK(sel(x0, cons(sel(z0, z1), x2))) -> c8(A__SEL(mark(x0), cons(a__sel(mark(z0), mark(z1)), x2)), MARK(cons(sel(z0, z1), x2)))
   MARK(sel(x0, cons(cons(z0, z1), x2))) -> c8(A__SEL(mark(x0), cons(cons(mark(z0), z1), x2)), MARK(cons(cons(z0, z1), x2)))
   MARK(sel(x0, cons(s(z0), x2))) -> c8(A__SEL(mark(x0), cons(s(mark(z0)), x2)), MARK(cons(s(z0), x2)))
   MARK(sel(x0, cons(0, x2))) -> c8(A__SEL(mark(x0), cons(0, x2)), MARK(cons(0, x2)))
   MARK(sel(from(z0), cons(x1, x2))) -> c8(A__SEL(a__from(mark(z0)), cons(mark(x1), x2)), MARK(cons(x1, x2)))
   MARK(sel(sel(z0, z1), cons(x1, x2))) -> c8(A__SEL(a__sel(mark(z0), mark(z1)), cons(mark(x1), x2)), MARK(cons(x1, x2)))
   MARK(sel(s(z0), cons(x1, x2))) -> c8(A__SEL(s(mark(z0)), cons(mark(x1), x2)), MARK(cons(x1, x2)))
   MARK(sel(0, cons(x1, x2))) -> c8(A__SEL(0, cons(mark(x1), x2)), MARK(cons(x1, x2)))
   MARK(sel(x0, cons(x1, x2))) -> c8(MARK(cons(x1, x2)))
   MARK(sel(cons(z0, z1), cons(x1, x2))) -> c8(MARK(cons(x1, x2)))
K tuples:none
Defined Rule Symbols:   a__from_1, a__sel_2, mark_1

Defined Pair Symbols:   A__FROM_1, A__SEL_2, MARK_1

Compound Symbols:   c_1, c2_1, c6_2, c9_1, c10_1, c3_1, c4_1, c7_1, c8_2, c8_1, c3_2, c4_2, c7_2


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

(181) CdtNarrowingProof (BOTH BOUNDS(ID, ID))
Use narrowing to replace MARK(sel(from(z0), x1)) -> c8(A__SEL(a__from(mark(z0)), mark(x1)), MARK(x1)) by 
   MARK(sel(from(x0), from(z0))) -> c8(A__SEL(a__from(mark(x0)), a__from(mark(z0))), MARK(from(z0)))
   MARK(sel(from(x0), sel(z0, z1))) -> c8(A__SEL(a__from(mark(x0)), a__sel(mark(z0), mark(z1))), MARK(sel(z0, z1)))
   MARK(sel(from(x0), cons(z0, z1))) -> c8(A__SEL(a__from(mark(x0)), cons(mark(z0), z1)), MARK(cons(z0, z1)))
   MARK(sel(from(x0), s(z0))) -> c8(A__SEL(a__from(mark(x0)), s(mark(z0))), MARK(s(z0)))
   MARK(sel(from(x0), 0)) -> c8(A__SEL(a__from(mark(x0)), 0), MARK(0))
   MARK(sel(from(x0), x1)) -> c8(A__SEL(cons(mark(mark(x0)), from(s(mark(x0)))), mark(x1)), MARK(x1))
   MARK(sel(from(x0), x1)) -> c8(A__SEL(from(mark(x0)), mark(x1)), MARK(x1))
   MARK(sel(from(from(z0)), x1)) -> c8(A__SEL(a__from(a__from(mark(z0))), mark(x1)), MARK(x1))
   MARK(sel(from(sel(z0, z1)), x1)) -> c8(A__SEL(a__from(a__sel(mark(z0), mark(z1))), mark(x1)), MARK(x1))
   MARK(sel(from(cons(z0, z1)), x1)) -> c8(A__SEL(a__from(cons(mark(z0), z1)), mark(x1)), MARK(x1))
   MARK(sel(from(s(z0)), x1)) -> c8(A__SEL(a__from(s(mark(z0))), mark(x1)), MARK(x1))
   MARK(sel(from(0), x1)) -> c8(A__SEL(a__from(0), mark(x1)), MARK(x1))

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

(182)
Obligation:
Complexity Dependency Tuples Problem

Rules:
   a__from(z0) -> cons(mark(z0), from(s(z0)))
   a__from(z0) -> from(z0)
   a__sel(0, cons(z0, z1)) -> mark(z0)
   a__sel(s(z0), cons(z1, z2)) -> a__sel(mark(z0), mark(z2))
   a__sel(z0, z1) -> sel(z0, z1)
   mark(from(z0)) -> a__from(mark(z0))
   mark(sel(z0, z1)) -> a__sel(mark(z0), mark(z1))
   mark(cons(z0, z1)) -> cons(mark(z0), z1)
   mark(s(z0)) -> s(mark(z0))
   mark(0) -> 0
Tuples:
   A__FROM(z0) -> c(MARK(z0))
   A__SEL(0, cons(z0, z1)) -> c2(MARK(z0))
   MARK(from(z0)) -> c6(A__FROM(mark(z0)), MARK(z0))
   MARK(cons(z0, z1)) -> c9(MARK(z0))
   MARK(s(z0)) -> c10(MARK(z0))
   A__SEL(s(x0), cons(x1, s(z0))) -> c3(MARK(x0))
   A__SEL(s(x0), cons(x1, 0)) -> c3(MARK(x0))
   A__SEL(s(cons(z0, z1)), cons(x1, x2)) -> c3(MARK(cons(z0, z1)))
   A__SEL(s(x0), cons(x1, s(z0))) -> c4(MARK(s(z0)))
   A__SEL(s(cons(z0, z1)), cons(x1, x2)) -> c4(MARK(x2))
   MARK(sel(x0, s(z0))) -> c7(MARK(x0))
   MARK(sel(x0, 0)) -> c7(MARK(x0))
   MARK(sel(cons(z0, z1), x1)) -> c7(MARK(cons(z0, z1)))
   MARK(sel(sel(z0, z1), x1)) -> c8(A__SEL(a__sel(mark(z0), mark(z1)), mark(x1)), MARK(x1))
   MARK(sel(s(z0), x1)) -> c8(A__SEL(s(mark(z0)), mark(x1)), MARK(x1))
   MARK(sel(0, x1)) -> c8(A__SEL(0, mark(x1)), MARK(x1))
   MARK(sel(x0, s(z0))) -> c8(MARK(s(z0)))
   MARK(sel(cons(z0, z1), x1)) -> c8(MARK(x1))
   A__SEL(s(x0), cons(x1, from(x2))) -> c3(A__SEL(mark(x0), cons(mark(mark(x2)), from(s(mark(x2))))), MARK(x0))
   A__SEL(s(x0), cons(x1, from(from(z0)))) -> c3(A__SEL(mark(x0), a__from(a__from(mark(z0)))), MARK(x0))
   A__SEL(s(x0), cons(x1, from(sel(z0, z1)))) -> c3(A__SEL(mark(x0), a__from(a__sel(mark(z0), mark(z1)))), MARK(x0))
   A__SEL(s(x0), cons(x1, from(cons(z0, z1)))) -> c3(A__SEL(mark(x0), a__from(cons(mark(z0), z1))), MARK(x0))
   A__SEL(s(x0), cons(x1, from(s(z0)))) -> c3(A__SEL(mark(x0), a__from(s(mark(z0)))), MARK(x0))
   A__SEL(s(x0), cons(x1, from(0))) -> c3(A__SEL(mark(x0), a__from(0)), MARK(x0))
   A__SEL(s(from(z0)), cons(x1, from(x2))) -> c3(A__SEL(a__from(mark(z0)), a__from(mark(x2))), MARK(from(z0)))
   A__SEL(s(sel(z0, z1)), cons(x1, from(x2))) -> c3(A__SEL(a__sel(mark(z0), mark(z1)), a__from(mark(x2))), MARK(sel(z0, z1)))
   A__SEL(s(s(z0)), cons(x1, from(x2))) -> c3(A__SEL(s(mark(z0)), a__from(mark(x2))), MARK(s(z0)))
   A__SEL(s(x0), cons(x1, from(x2))) -> c3(MARK(x0))
   A__SEL(s(cons(z0, z1)), cons(x1, from(x2))) -> c3(MARK(cons(z0, z1)))
   A__SEL(s(0), cons(x1, from(x2))) -> c3(A__SEL(0, a__from(mark(x2))))
   A__SEL(s(x0), cons(x1, sel(x2, from(z0)))) -> c3(A__SEL(mark(x0), a__sel(mark(x2), a__from(mark(z0)))), MARK(x0))
   A__SEL(s(x0), cons(x1, sel(x2, sel(z0, z1)))) -> c3(A__SEL(mark(x0), a__sel(mark(x2), a__sel(mark(z0), mark(z1)))), MARK(x0))
   A__SEL(s(x0), cons(x1, sel(x2, cons(z0, z1)))) -> c3(A__SEL(mark(x0), a__sel(mark(x2), cons(mark(z0), z1))), MARK(x0))
   A__SEL(s(x0), cons(x1, sel(x2, s(z0)))) -> c3(A__SEL(mark(x0), a__sel(mark(x2), s(mark(z0)))), MARK(x0))
   A__SEL(s(x0), cons(x1, sel(x2, 0))) -> c3(A__SEL(mark(x0), a__sel(mark(x2), 0)), MARK(x0))
   A__SEL(s(x0), cons(x1, sel(from(z0), x3))) -> c3(A__SEL(mark(x0), a__sel(a__from(mark(z0)), mark(x3))), MARK(x0))
   A__SEL(s(x0), cons(x1, sel(sel(z0, z1), x3))) -> c3(A__SEL(mark(x0), a__sel(a__sel(mark(z0), mark(z1)), mark(x3))), MARK(x0))
   A__SEL(s(x0), cons(x1, sel(cons(z0, z1), x3))) -> c3(A__SEL(mark(x0), a__sel(cons(mark(z0), z1), mark(x3))), MARK(x0))
   A__SEL(s(x0), cons(x1, sel(s(z0), x3))) -> c3(A__SEL(mark(x0), a__sel(s(mark(z0)), mark(x3))), MARK(x0))
   A__SEL(s(x0), cons(x1, sel(0, x3))) -> c3(A__SEL(mark(x0), a__sel(0, mark(x3))), MARK(x0))
   A__SEL(s(from(z0)), cons(x1, sel(x2, x3))) -> c3(A__SEL(a__from(mark(z0)), a__sel(mark(x2), mark(x3))), MARK(from(z0)))
   A__SEL(s(sel(z0, z1)), cons(x1, sel(x2, x3))) -> c3(A__SEL(a__sel(mark(z0), mark(z1)), a__sel(mark(x2), mark(x3))), MARK(sel(z0, z1)))
   A__SEL(s(s(z0)), cons(x1, sel(x2, x3))) -> c3(A__SEL(s(mark(z0)), a__sel(mark(x2), mark(x3))), MARK(s(z0)))
   A__SEL(s(x0), cons(x1, sel(x2, x3))) -> c3(MARK(x0))
   A__SEL(s(cons(z0, z1)), cons(x1, sel(x2, x3))) -> c3(MARK(cons(z0, z1)))
   A__SEL(s(0), cons(x1, sel(x2, x3))) -> c3(A__SEL(0, a__sel(mark(x2), mark(x3))))
   A__SEL(s(x0), cons(x1, cons(from(z0), x3))) -> c3(A__SEL(mark(x0), cons(a__from(mark(z0)), x3)), MARK(x0))
   A__SEL(s(x0), cons(x1, cons(sel(z0, z1), x3))) -> c3(A__SEL(mark(x0), cons(a__sel(mark(z0), mark(z1)), x3)), MARK(x0))
   A__SEL(s(x0), cons(x1, cons(cons(z0, z1), x3))) -> c3(A__SEL(mark(x0), cons(cons(mark(z0), z1), x3)), MARK(x0))
   A__SEL(s(x0), cons(x1, cons(s(z0), x3))) -> c3(A__SEL(mark(x0), cons(s(mark(z0)), x3)), MARK(x0))
   A__SEL(s(x0), cons(x1, cons(0, x3))) -> c3(A__SEL(mark(x0), cons(0, x3)), MARK(x0))
   A__SEL(s(from(z0)), cons(x1, cons(x2, x3))) -> c3(A__SEL(a__from(mark(z0)), cons(mark(x2), x3)), MARK(from(z0)))
   A__SEL(s(sel(z0, z1)), cons(x1, cons(x2, x3))) -> c3(A__SEL(a__sel(mark(z0), mark(z1)), cons(mark(x2), x3)), MARK(sel(z0, z1)))
   A__SEL(s(s(z0)), cons(x1, cons(x2, x3))) -> c3(A__SEL(s(mark(z0)), cons(mark(x2), x3)), MARK(s(z0)))
   A__SEL(s(cons(z0, z1)), cons(x1, cons(x2, x3))) -> c3(MARK(cons(z0, z1)))
   A__SEL(s(0), cons(x1, cons(x2, x3))) -> c3(A__SEL(0, cons(mark(x2), x3)))
   A__SEL(s(from(from(z0))), cons(x1, x2)) -> c3(A__SEL(a__from(a__from(mark(z0))), mark(x2)), MARK(from(from(z0))))
   A__SEL(s(from(sel(z0, z1))), cons(x1, x2)) -> c3(A__SEL(a__from(a__sel(mark(z0), mark(z1))), mark(x2)), MARK(from(sel(z0, z1))))
   A__SEL(s(from(cons(z0, z1))), cons(x1, x2)) -> c3(A__SEL(a__from(cons(mark(z0), z1)), mark(x2)), MARK(from(cons(z0, z1))))
   A__SEL(s(from(s(z0))), cons(x1, x2)) -> c3(A__SEL(a__from(s(mark(z0))), mark(x2)), MARK(from(s(z0))))
   A__SEL(s(from(0)), cons(x1, x2)) -> c3(A__SEL(a__from(0), mark(x2)), MARK(from(0)))
   A__SEL(s(from(x0)), cons(x1, x2)) -> c3(MARK(from(x0)))
   A__SEL(s(from(x0)), cons(x1, s(z0))) -> c3(MARK(from(x0)))
   A__SEL(s(from(x0)), cons(x1, 0)) -> c3(MARK(from(x0)))
   A__SEL(s(sel(x0, from(z0))), cons(x2, x3)) -> c3(A__SEL(a__sel(mark(x0), a__from(mark(z0))), mark(x3)), MARK(sel(x0, from(z0))))
   A__SEL(s(sel(x0, sel(z0, z1))), cons(x2, x3)) -> c3(A__SEL(a__sel(mark(x0), a__sel(mark(z0), mark(z1))), mark(x3)), MARK(sel(x0, sel(z0, z1))))
   A__SEL(s(sel(x0, cons(z0, z1))), cons(x2, x3)) -> c3(A__SEL(a__sel(mark(x0), cons(mark(z0), z1)), mark(x3)), MARK(sel(x0, cons(z0, z1))))
   A__SEL(s(sel(x0, s(z0))), cons(x2, x3)) -> c3(A__SEL(a__sel(mark(x0), s(mark(z0))), mark(x3)), MARK(sel(x0, s(z0))))
   A__SEL(s(sel(x0, 0)), cons(x2, x3)) -> c3(A__SEL(a__sel(mark(x0), 0), mark(x3)), MARK(sel(x0, 0)))
   A__SEL(s(sel(from(z0), x1)), cons(x2, x3)) -> c3(A__SEL(a__sel(a__from(mark(z0)), mark(x1)), mark(x3)), MARK(sel(from(z0), x1)))
   A__SEL(s(sel(sel(z0, z1), x1)), cons(x2, x3)) -> c3(A__SEL(a__sel(a__sel(mark(z0), mark(z1)), mark(x1)), mark(x3)), MARK(sel(sel(z0, z1), x1)))
   A__SEL(s(sel(cons(z0, z1), x1)), cons(x2, x3)) -> c3(A__SEL(a__sel(cons(mark(z0), z1), mark(x1)), mark(x3)), MARK(sel(cons(z0, z1), x1)))
   A__SEL(s(sel(s(z0), x1)), cons(x2, x3)) -> c3(A__SEL(a__sel(s(mark(z0)), mark(x1)), mark(x3)), MARK(sel(s(z0), x1)))
   A__SEL(s(sel(0, x1)), cons(x2, x3)) -> c3(A__SEL(a__sel(0, mark(x1)), mark(x3)), MARK(sel(0, x1)))
   A__SEL(s(sel(x0, x1)), cons(x2, s(z0))) -> c3(MARK(sel(x0, x1)))
   A__SEL(s(sel(x0, x1)), cons(x2, 0)) -> c3(MARK(sel(x0, x1)))
   A__SEL(s(sel(x0, x1)), cons(x2, x3)) -> c3(MARK(sel(x0, x1)))
   A__SEL(s(s(from(z0))), cons(x1, x2)) -> c3(A__SEL(s(a__from(mark(z0))), mark(x2)), MARK(s(from(z0))))
   A__SEL(s(s(sel(z0, z1))), cons(x1, x2)) -> c3(A__SEL(s(a__sel(mark(z0), mark(z1))), mark(x2)), MARK(s(sel(z0, z1))))
   A__SEL(s(s(cons(z0, z1))), cons(x1, x2)) -> c3(A__SEL(s(cons(mark(z0), z1)), mark(x2)), MARK(s(cons(z0, z1))))
   A__SEL(s(s(s(z0))), cons(x1, x2)) -> c3(A__SEL(s(s(mark(z0))), mark(x2)), MARK(s(s(z0))))
   A__SEL(s(s(0)), cons(x1, x2)) -> c3(A__SEL(s(0), mark(x2)), MARK(s(0)))
   A__SEL(s(s(x0)), cons(x1, x2)) -> c3(MARK(s(x0)))
   A__SEL(s(s(x0)), cons(x1, s(z0))) -> c3(MARK(s(x0)))
   A__SEL(s(s(x0)), cons(x1, 0)) -> c3(MARK(s(x0)))
   A__SEL(s(x0), cons(x1, from(x2))) -> c4(A__SEL(mark(x0), cons(mark(mark(x2)), from(s(mark(x2))))), MARK(from(x2)))
   A__SEL(s(x0), cons(x1, from(from(z0)))) -> c4(A__SEL(mark(x0), a__from(a__from(mark(z0)))), MARK(from(from(z0))))
   A__SEL(s(x0), cons(x1, from(sel(z0, z1)))) -> c4(A__SEL(mark(x0), a__from(a__sel(mark(z0), mark(z1)))), MARK(from(sel(z0, z1))))
   A__SEL(s(x0), cons(x1, from(cons(z0, z1)))) -> c4(A__SEL(mark(x0), a__from(cons(mark(z0), z1))), MARK(from(cons(z0, z1))))
   A__SEL(s(x0), cons(x1, from(s(z0)))) -> c4(A__SEL(mark(x0), a__from(s(mark(z0)))), MARK(from(s(z0))))
   A__SEL(s(x0), cons(x1, from(0))) -> c4(A__SEL(mark(x0), a__from(0)), MARK(from(0)))
   A__SEL(s(from(z0)), cons(x1, from(x2))) -> c4(A__SEL(a__from(mark(z0)), a__from(mark(x2))), MARK(from(x2)))
   A__SEL(s(sel(z0, z1)), cons(x1, from(x2))) -> c4(A__SEL(a__sel(mark(z0), mark(z1)), a__from(mark(x2))), MARK(from(x2)))
   A__SEL(s(s(z0)), cons(x1, from(x2))) -> c4(A__SEL(s(mark(z0)), a__from(mark(x2))), MARK(from(x2)))
   A__SEL(s(0), cons(x1, from(x2))) -> c4(A__SEL(0, a__from(mark(x2))), MARK(from(x2)))
   A__SEL(s(x0), cons(x1, from(x2))) -> c4(MARK(from(x2)))
   A__SEL(s(cons(z0, z1)), cons(x1, from(x2))) -> c4(MARK(from(x2)))
   A__SEL(s(x0), cons(x1, sel(x2, from(z0)))) -> c4(A__SEL(mark(x0), a__sel(mark(x2), a__from(mark(z0)))), MARK(sel(x2, from(z0))))
   A__SEL(s(x0), cons(x1, sel(x2, sel(z0, z1)))) -> c4(A__SEL(mark(x0), a__sel(mark(x2), a__sel(mark(z0), mark(z1)))), MARK(sel(x2, sel(z0, z1))))
   A__SEL(s(x0), cons(x1, sel(x2, cons(z0, z1)))) -> c4(A__SEL(mark(x0), a__sel(mark(x2), cons(mark(z0), z1))), MARK(sel(x2, cons(z0, z1))))
   A__SEL(s(x0), cons(x1, sel(x2, s(z0)))) -> c4(A__SEL(mark(x0), a__sel(mark(x2), s(mark(z0)))), MARK(sel(x2, s(z0))))
   A__SEL(s(x0), cons(x1, sel(x2, 0))) -> c4(A__SEL(mark(x0), a__sel(mark(x2), 0)), MARK(sel(x2, 0)))
   A__SEL(s(x0), cons(x1, sel(from(z0), x3))) -> c4(A__SEL(mark(x0), a__sel(a__from(mark(z0)), mark(x3))), MARK(sel(from(z0), x3)))
   A__SEL(s(x0), cons(x1, sel(sel(z0, z1), x3))) -> c4(A__SEL(mark(x0), a__sel(a__sel(mark(z0), mark(z1)), mark(x3))), MARK(sel(sel(z0, z1), x3)))
   A__SEL(s(x0), cons(x1, sel(cons(z0, z1), x3))) -> c4(A__SEL(mark(x0), a__sel(cons(mark(z0), z1), mark(x3))), MARK(sel(cons(z0, z1), x3)))
   A__SEL(s(x0), cons(x1, sel(s(z0), x3))) -> c4(A__SEL(mark(x0), a__sel(s(mark(z0)), mark(x3))), MARK(sel(s(z0), x3)))
   A__SEL(s(x0), cons(x1, sel(0, x3))) -> c4(A__SEL(mark(x0), a__sel(0, mark(x3))), MARK(sel(0, x3)))
   A__SEL(s(from(z0)), cons(x1, sel(x2, x3))) -> c4(A__SEL(a__from(mark(z0)), a__sel(mark(x2), mark(x3))), MARK(sel(x2, x3)))
   A__SEL(s(sel(z0, z1)), cons(x1, sel(x2, x3))) -> c4(A__SEL(a__sel(mark(z0), mark(z1)), a__sel(mark(x2), mark(x3))), MARK(sel(x2, x3)))
   A__SEL(s(s(z0)), cons(x1, sel(x2, x3))) -> c4(A__SEL(s(mark(z0)), a__sel(mark(x2), mark(x3))), MARK(sel(x2, x3)))
   A__SEL(s(0), cons(x1, sel(x2, x3))) -> c4(A__SEL(0, a__sel(mark(x2), mark(x3))), MARK(sel(x2, x3)))
   A__SEL(s(x0), cons(x1, sel(x2, x3))) -> c4(MARK(sel(x2, x3)))
   A__SEL(s(cons(z0, z1)), cons(x1, sel(x2, x3))) -> c4(MARK(sel(x2, x3)))
   A__SEL(s(x0), cons(x1, cons(from(z0), x3))) -> c4(A__SEL(mark(x0), cons(a__from(mark(z0)), x3)), MARK(cons(from(z0), x3)))
   A__SEL(s(x0), cons(x1, cons(sel(z0, z1), x3))) -> c4(A__SEL(mark(x0), cons(a__sel(mark(z0), mark(z1)), x3)), MARK(cons(sel(z0, z1), x3)))
   A__SEL(s(x0), cons(x1, cons(cons(z0, z1), x3))) -> c4(A__SEL(mark(x0), cons(cons(mark(z0), z1), x3)), MARK(cons(cons(z0, z1), x3)))
   A__SEL(s(x0), cons(x1, cons(s(z0), x3))) -> c4(A__SEL(mark(x0), cons(s(mark(z0)), x3)), MARK(cons(s(z0), x3)))
   A__SEL(s(x0), cons(x1, cons(0, x3))) -> c4(A__SEL(mark(x0), cons(0, x3)), MARK(cons(0, x3)))
   A__SEL(s(from(z0)), cons(x1, cons(x2, x3))) -> c4(A__SEL(a__from(mark(z0)), cons(mark(x2), x3)), MARK(cons(x2, x3)))
   A__SEL(s(sel(z0, z1)), cons(x1, cons(x2, x3))) -> c4(A__SEL(a__sel(mark(z0), mark(z1)), cons(mark(x2), x3)), MARK(cons(x2, x3)))
   A__SEL(s(s(z0)), cons(x1, cons(x2, x3))) -> c4(A__SEL(s(mark(z0)), cons(mark(x2), x3)), MARK(cons(x2, x3)))
   A__SEL(s(0), cons(x1, cons(x2, x3))) -> c4(A__SEL(0, cons(mark(x2), x3)), MARK(cons(x2, x3)))
   A__SEL(s(x0), cons(x1, cons(x2, x3))) -> c4(MARK(cons(x2, x3)))
   A__SEL(s(cons(z0, z1)), cons(x1, cons(x2, x3))) -> c4(MARK(cons(x2, x3)))
   A__SEL(s(from(from(z0))), cons(x1, x2)) -> c4(A__SEL(a__from(a__from(mark(z0))), mark(x2)), MARK(x2))
   A__SEL(s(from(sel(z0, z1))), cons(x1, x2)) -> c4(A__SEL(a__from(a__sel(mark(z0), mark(z1))), mark(x2)), MARK(x2))
   A__SEL(s(from(cons(z0, z1))), cons(x1, x2)) -> c4(A__SEL(a__from(cons(mark(z0), z1)), mark(x2)), MARK(x2))
   A__SEL(s(from(s(z0))), cons(x1, x2)) -> c4(A__SEL(a__from(s(mark(z0))), mark(x2)), MARK(x2))
   A__SEL(s(from(0)), cons(x1, x2)) -> c4(A__SEL(a__from(0), mark(x2)), MARK(x2))
   A__SEL(s(from(x0)), cons(x1, s(z0))) -> c4(MARK(s(z0)))
   A__SEL(s(from(x0)), cons(x1, x2)) -> c4(MARK(x2))
   A__SEL(s(sel(x0, from(z0))), cons(x2, x3)) -> c4(A__SEL(a__sel(mark(x0), a__from(mark(z0))), mark(x3)), MARK(x3))
   A__SEL(s(sel(x0, sel(z0, z1))), cons(x2, x3)) -> c4(A__SEL(a__sel(mark(x0), a__sel(mark(z0), mark(z1))), mark(x3)), MARK(x3))
   A__SEL(s(sel(x0, cons(z0, z1))), cons(x2, x3)) -> c4(A__SEL(a__sel(mark(x0), cons(mark(z0), z1)), mark(x3)), MARK(x3))
   A__SEL(s(sel(x0, s(z0))), cons(x2, x3)) -> c4(A__SEL(a__sel(mark(x0), s(mark(z0))), mark(x3)), MARK(x3))
   A__SEL(s(sel(x0, 0)), cons(x2, x3)) -> c4(A__SEL(a__sel(mark(x0), 0), mark(x3)), MARK(x3))
   A__SEL(s(sel(from(z0), x1)), cons(x2, x3)) -> c4(A__SEL(a__sel(a__from(mark(z0)), mark(x1)), mark(x3)), MARK(x3))
   A__SEL(s(sel(sel(z0, z1), x1)), cons(x2, x3)) -> c4(A__SEL(a__sel(a__sel(mark(z0), mark(z1)), mark(x1)), mark(x3)), MARK(x3))
   A__SEL(s(sel(cons(z0, z1), x1)), cons(x2, x3)) -> c4(A__SEL(a__sel(cons(mark(z0), z1), mark(x1)), mark(x3)), MARK(x3))
   A__SEL(s(sel(s(z0), x1)), cons(x2, x3)) -> c4(A__SEL(a__sel(s(mark(z0)), mark(x1)), mark(x3)), MARK(x3))
   A__SEL(s(sel(0, x1)), cons(x2, x3)) -> c4(A__SEL(a__sel(0, mark(x1)), mark(x3)), MARK(x3))
   A__SEL(s(sel(x0, x1)), cons(x2, s(z0))) -> c4(MARK(s(z0)))
   A__SEL(s(sel(x0, x1)), cons(x2, x3)) -> c4(MARK(x3))
   A__SEL(s(s(from(z0))), cons(x1, x2)) -> c4(A__SEL(s(a__from(mark(z0))), mark(x2)), MARK(x2))
   A__SEL(s(s(sel(z0, z1))), cons(x1, x2)) -> c4(A__SEL(s(a__sel(mark(z0), mark(z1))), mark(x2)), MARK(x2))
   A__SEL(s(s(cons(z0, z1))), cons(x1, x2)) -> c4(A__SEL(s(cons(mark(z0), z1)), mark(x2)), MARK(x2))
   A__SEL(s(s(s(z0))), cons(x1, x2)) -> c4(A__SEL(s(s(mark(z0))), mark(x2)), MARK(x2))
   A__SEL(s(s(0)), cons(x1, x2)) -> c4(A__SEL(s(0), mark(x2)), MARK(x2))
   A__SEL(s(s(x0)), cons(x1, s(z0))) -> c4(MARK(s(z0)))
   A__SEL(s(0), cons(x0, s(z0))) -> c4(MARK(s(z0)))
   MARK(sel(x0, from(x1))) -> c7(A__SEL(mark(x0), cons(mark(mark(x1)), from(s(mark(x1))))), MARK(x0))
   MARK(sel(x0, from(from(z0)))) -> c7(A__SEL(mark(x0), a__from(a__from(mark(z0)))), MARK(x0))
   MARK(sel(x0, from(sel(z0, z1)))) -> c7(A__SEL(mark(x0), a__from(a__sel(mark(z0), mark(z1)))), MARK(x0))
   MARK(sel(x0, from(cons(z0, z1)))) -> c7(A__SEL(mark(x0), a__from(cons(mark(z0), z1))), MARK(x0))
   MARK(sel(x0, from(s(z0)))) -> c7(A__SEL(mark(x0), a__from(s(mark(z0)))), MARK(x0))
   MARK(sel(x0, from(0))) -> c7(A__SEL(mark(x0), a__from(0)), MARK(x0))
   MARK(sel(from(z0), from(x1))) -> c7(A__SEL(a__from(mark(z0)), a__from(mark(x1))), MARK(from(z0)))
   MARK(sel(sel(z0, z1), from(x1))) -> c7(A__SEL(a__sel(mark(z0), mark(z1)), a__from(mark(x1))), MARK(sel(z0, z1)))
   MARK(sel(s(z0), from(x1))) -> c7(A__SEL(s(mark(z0)), a__from(mark(x1))), MARK(s(z0)))
   MARK(sel(x0, from(x1))) -> c7(MARK(x0))
   MARK(sel(cons(z0, z1), from(x1))) -> c7(MARK(cons(z0, z1)))
   MARK(sel(0, from(x1))) -> c7(A__SEL(0, a__from(mark(x1))))
   MARK(sel(x0, sel(x1, from(z0)))) -> c7(A__SEL(mark(x0), a__sel(mark(x1), a__from(mark(z0)))), MARK(x0))
   MARK(sel(x0, sel(x1, sel(z0, z1)))) -> c7(A__SEL(mark(x0), a__sel(mark(x1), a__sel(mark(z0), mark(z1)))), MARK(x0))
   MARK(sel(x0, sel(x1, cons(z0, z1)))) -> c7(A__SEL(mark(x0), a__sel(mark(x1), cons(mark(z0), z1))), MARK(x0))
   MARK(sel(x0, sel(x1, s(z0)))) -> c7(A__SEL(mark(x0), a__sel(mark(x1), s(mark(z0)))), MARK(x0))
   MARK(sel(x0, sel(x1, 0))) -> c7(A__SEL(mark(x0), a__sel(mark(x1), 0)), MARK(x0))
   MARK(sel(x0, sel(from(z0), x2))) -> c7(A__SEL(mark(x0), a__sel(a__from(mark(z0)), mark(x2))), MARK(x0))
   MARK(sel(x0, sel(sel(z0, z1), x2))) -> c7(A__SEL(mark(x0), a__sel(a__sel(mark(z0), mark(z1)), mark(x2))), MARK(x0))
   MARK(sel(x0, sel(cons(z0, z1), x2))) -> c7(A__SEL(mark(x0), a__sel(cons(mark(z0), z1), mark(x2))), MARK(x0))
   MARK(sel(x0, sel(s(z0), x2))) -> c7(A__SEL(mark(x0), a__sel(s(mark(z0)), mark(x2))), MARK(x0))
   MARK(sel(x0, sel(0, x2))) -> c7(A__SEL(mark(x0), a__sel(0, mark(x2))), MARK(x0))
   MARK(sel(from(z0), sel(x1, x2))) -> c7(A__SEL(a__from(mark(z0)), a__sel(mark(x1), mark(x2))), MARK(from(z0)))
   MARK(sel(sel(z0, z1), sel(x1, x2))) -> c7(A__SEL(a__sel(mark(z0), mark(z1)), a__sel(mark(x1), mark(x2))), MARK(sel(z0, z1)))
   MARK(sel(s(z0), sel(x1, x2))) -> c7(A__SEL(s(mark(z0)), a__sel(mark(x1), mark(x2))), MARK(s(z0)))
   MARK(sel(x0, sel(x1, x2))) -> c7(MARK(x0))
   MARK(sel(cons(z0, z1), sel(x1, x2))) -> c7(MARK(cons(z0, z1)))
   MARK(sel(0, sel(x1, x2))) -> c7(A__SEL(0, a__sel(mark(x1), mark(x2))))
   MARK(sel(x0, cons(from(z0), x2))) -> c7(A__SEL(mark(x0), cons(a__from(mark(z0)), x2)), MARK(x0))
   MARK(sel(x0, cons(sel(z0, z1), x2))) -> c7(A__SEL(mark(x0), cons(a__sel(mark(z0), mark(z1)), x2)), MARK(x0))
   MARK(sel(x0, cons(cons(z0, z1), x2))) -> c7(A__SEL(mark(x0), cons(cons(mark(z0), z1), x2)), MARK(x0))
   MARK(sel(x0, cons(s(z0), x2))) -> c7(A__SEL(mark(x0), cons(s(mark(z0)), x2)), MARK(x0))
   MARK(sel(x0, cons(0, x2))) -> c7(A__SEL(mark(x0), cons(0, x2)), MARK(x0))
   MARK(sel(from(z0), cons(x1, x2))) -> c7(A__SEL(a__from(mark(z0)), cons(mark(x1), x2)), MARK(from(z0)))
   MARK(sel(sel(z0, z1), cons(x1, x2))) -> c7(A__SEL(a__sel(mark(z0), mark(z1)), cons(mark(x1), x2)), MARK(sel(z0, z1)))
   MARK(sel(s(z0), cons(x1, x2))) -> c7(A__SEL(s(mark(z0)), cons(mark(x1), x2)), MARK(s(z0)))
   MARK(sel(cons(z0, z1), cons(x1, x2))) -> c7(MARK(cons(z0, z1)))
   MARK(sel(0, cons(x1, x2))) -> c7(A__SEL(0, cons(mark(x1), x2)))
   MARK(sel(from(from(z0)), x1)) -> c7(A__SEL(a__from(a__from(mark(z0))), mark(x1)), MARK(from(from(z0))))
   MARK(sel(from(sel(z0, z1)), x1)) -> c7(A__SEL(a__from(a__sel(mark(z0), mark(z1))), mark(x1)), MARK(from(sel(z0, z1))))
   MARK(sel(from(cons(z0, z1)), x1)) -> c7(A__SEL(a__from(cons(mark(z0), z1)), mark(x1)), MARK(from(cons(z0, z1))))
   MARK(sel(from(s(z0)), x1)) -> c7(A__SEL(a__from(s(mark(z0))), mark(x1)), MARK(from(s(z0))))
   MARK(sel(from(0), x1)) -> c7(A__SEL(a__from(0), mark(x1)), MARK(from(0)))
   MARK(sel(from(x0), x1)) -> c7(MARK(from(x0)))
   MARK(sel(from(x0), s(z0))) -> c7(MARK(from(x0)))
   MARK(sel(from(x0), 0)) -> c7(MARK(from(x0)))
   MARK(sel(sel(x0, from(z0)), x2)) -> c7(A__SEL(a__sel(mark(x0), a__from(mark(z0))), mark(x2)), MARK(sel(x0, from(z0))))
   MARK(sel(sel(x0, sel(z0, z1)), x2)) -> c7(A__SEL(a__sel(mark(x0), a__sel(mark(z0), mark(z1))), mark(x2)), MARK(sel(x0, sel(z0, z1))))
   MARK(sel(sel(x0, cons(z0, z1)), x2)) -> c7(A__SEL(a__sel(mark(x0), cons(mark(z0), z1)), mark(x2)), MARK(sel(x0, cons(z0, z1))))
   MARK(sel(sel(x0, s(z0)), x2)) -> c7(A__SEL(a__sel(mark(x0), s(mark(z0))), mark(x2)), MARK(sel(x0, s(z0))))
   MARK(sel(sel(x0, 0), x2)) -> c7(A__SEL(a__sel(mark(x0), 0), mark(x2)), MARK(sel(x0, 0)))
   MARK(sel(sel(from(z0), x1), x2)) -> c7(A__SEL(a__sel(a__from(mark(z0)), mark(x1)), mark(x2)), MARK(sel(from(z0), x1)))
   MARK(sel(sel(sel(z0, z1), x1), x2)) -> c7(A__SEL(a__sel(a__sel(mark(z0), mark(z1)), mark(x1)), mark(x2)), MARK(sel(sel(z0, z1), x1)))
   MARK(sel(sel(cons(z0, z1), x1), x2)) -> c7(A__SEL(a__sel(cons(mark(z0), z1), mark(x1)), mark(x2)), MARK(sel(cons(z0, z1), x1)))
   MARK(sel(sel(s(z0), x1), x2)) -> c7(A__SEL(a__sel(s(mark(z0)), mark(x1)), mark(x2)), MARK(sel(s(z0), x1)))
   MARK(sel(sel(0, x1), x2)) -> c7(A__SEL(a__sel(0, mark(x1)), mark(x2)), MARK(sel(0, x1)))
   MARK(sel(sel(x0, x1), s(z0))) -> c7(MARK(sel(x0, x1)))
   MARK(sel(sel(x0, x1), 0)) -> c7(MARK(sel(x0, x1)))
   MARK(sel(sel(x0, x1), x2)) -> c7(MARK(sel(x0, x1)))
   MARK(sel(s(from(z0)), x1)) -> c7(A__SEL(s(a__from(mark(z0))), mark(x1)), MARK(s(from(z0))))
   MARK(sel(s(sel(z0, z1)), x1)) -> c7(A__SEL(s(a__sel(mark(z0), mark(z1))), mark(x1)), MARK(s(sel(z0, z1))))
   MARK(sel(s(cons(z0, z1)), x1)) -> c7(A__SEL(s(cons(mark(z0), z1)), mark(x1)), MARK(s(cons(z0, z1))))
   MARK(sel(s(s(z0)), x1)) -> c7(A__SEL(s(s(mark(z0))), mark(x1)), MARK(s(s(z0))))
   MARK(sel(s(0), x1)) -> c7(A__SEL(s(0), mark(x1)), MARK(s(0)))
   MARK(sel(s(x0), x1)) -> c7(MARK(s(x0)))
   MARK(sel(s(x0), s(z0))) -> c7(MARK(s(x0)))
   MARK(sel(s(x0), 0)) -> c7(MARK(s(x0)))
   MARK(sel(x0, from(x1))) -> c8(A__SEL(mark(x0), cons(mark(mark(x1)), from(s(mark(x1))))), MARK(from(x1)))
   MARK(sel(x0, from(from(z0)))) -> c8(A__SEL(mark(x0), a__from(a__from(mark(z0)))), MARK(from(from(z0))))
   MARK(sel(x0, from(sel(z0, z1)))) -> c8(A__SEL(mark(x0), a__from(a__sel(mark(z0), mark(z1)))), MARK(from(sel(z0, z1))))
   MARK(sel(x0, from(cons(z0, z1)))) -> c8(A__SEL(mark(x0), a__from(cons(mark(z0), z1))), MARK(from(cons(z0, z1))))
   MARK(sel(x0, from(s(z0)))) -> c8(A__SEL(mark(x0), a__from(s(mark(z0)))), MARK(from(s(z0))))
   MARK(sel(x0, from(0))) -> c8(A__SEL(mark(x0), a__from(0)), MARK(from(0)))
   MARK(sel(from(z0), from(x1))) -> c8(A__SEL(a__from(mark(z0)), a__from(mark(x1))), MARK(from(x1)))
   MARK(sel(sel(z0, z1), from(x1))) -> c8(A__SEL(a__sel(mark(z0), mark(z1)), a__from(mark(x1))), MARK(from(x1)))
   MARK(sel(s(z0), from(x1))) -> c8(A__SEL(s(mark(z0)), a__from(mark(x1))), MARK(from(x1)))
   MARK(sel(0, from(x1))) -> c8(A__SEL(0, a__from(mark(x1))), MARK(from(x1)))
   MARK(sel(x0, from(x1))) -> c8(MARK(from(x1)))
   MARK(sel(cons(z0, z1), from(x1))) -> c8(MARK(from(x1)))
   MARK(sel(x0, sel(x1, from(z0)))) -> c8(A__SEL(mark(x0), a__sel(mark(x1), a__from(mark(z0)))), MARK(sel(x1, from(z0))))
   MARK(sel(x0, sel(x1, sel(z0, z1)))) -> c8(A__SEL(mark(x0), a__sel(mark(x1), a__sel(mark(z0), mark(z1)))), MARK(sel(x1, sel(z0, z1))))
   MARK(sel(x0, sel(x1, cons(z0, z1)))) -> c8(A__SEL(mark(x0), a__sel(mark(x1), cons(mark(z0), z1))), MARK(sel(x1, cons(z0, z1))))
   MARK(sel(x0, sel(x1, s(z0)))) -> c8(A__SEL(mark(x0), a__sel(mark(x1), s(mark(z0)))), MARK(sel(x1, s(z0))))
   MARK(sel(x0, sel(x1, 0))) -> c8(A__SEL(mark(x0), a__sel(mark(x1), 0)), MARK(sel(x1, 0)))
   MARK(sel(x0, sel(from(z0), x2))) -> c8(A__SEL(mark(x0), a__sel(a__from(mark(z0)), mark(x2))), MARK(sel(from(z0), x2)))
   MARK(sel(x0, sel(sel(z0, z1), x2))) -> c8(A__SEL(mark(x0), a__sel(a__sel(mark(z0), mark(z1)), mark(x2))), MARK(sel(sel(z0, z1), x2)))
   MARK(sel(x0, sel(cons(z0, z1), x2))) -> c8(A__SEL(mark(x0), a__sel(cons(mark(z0), z1), mark(x2))), MARK(sel(cons(z0, z1), x2)))
   MARK(sel(x0, sel(s(z0), x2))) -> c8(A__SEL(mark(x0), a__sel(s(mark(z0)), mark(x2))), MARK(sel(s(z0), x2)))
   MARK(sel(x0, sel(0, x2))) -> c8(A__SEL(mark(x0), a__sel(0, mark(x2))), MARK(sel(0, x2)))
   MARK(sel(from(z0), sel(x1, x2))) -> c8(A__SEL(a__from(mark(z0)), a__sel(mark(x1), mark(x2))), MARK(sel(x1, x2)))
   MARK(sel(sel(z0, z1), sel(x1, x2))) -> c8(A__SEL(a__sel(mark(z0), mark(z1)), a__sel(mark(x1), mark(x2))), MARK(sel(x1, x2)))
   MARK(sel(s(z0), sel(x1, x2))) -> c8(A__SEL(s(mark(z0)), a__sel(mark(x1), mark(x2))), MARK(sel(x1, x2)))
   MARK(sel(0, sel(x1, x2))) -> c8(A__SEL(0, a__sel(mark(x1), mark(x2))), MARK(sel(x1, x2)))
   MARK(sel(x0, sel(x1, x2))) -> c8(MARK(sel(x1, x2)))
   MARK(sel(cons(z0, z1), sel(x1, x2))) -> c8(MARK(sel(x1, x2)))
   MARK(sel(x0, cons(from(z0), x2))) -> c8(A__SEL(mark(x0), cons(a__from(mark(z0)), x2)), MARK(cons(from(z0), x2)))
   MARK(sel(x0, cons(sel(z0, z1), x2))) -> c8(A__SEL(mark(x0), cons(a__sel(mark(z0), mark(z1)), x2)), MARK(cons(sel(z0, z1), x2)))
   MARK(sel(x0, cons(cons(z0, z1), x2))) -> c8(A__SEL(mark(x0), cons(cons(mark(z0), z1), x2)), MARK(cons(cons(z0, z1), x2)))
   MARK(sel(x0, cons(s(z0), x2))) -> c8(A__SEL(mark(x0), cons(s(mark(z0)), x2)), MARK(cons(s(z0), x2)))
   MARK(sel(x0, cons(0, x2))) -> c8(A__SEL(mark(x0), cons(0, x2)), MARK(cons(0, x2)))
   MARK(sel(from(z0), cons(x1, x2))) -> c8(A__SEL(a__from(mark(z0)), cons(mark(x1), x2)), MARK(cons(x1, x2)))
   MARK(sel(sel(z0, z1), cons(x1, x2))) -> c8(A__SEL(a__sel(mark(z0), mark(z1)), cons(mark(x1), x2)), MARK(cons(x1, x2)))
   MARK(sel(s(z0), cons(x1, x2))) -> c8(A__SEL(s(mark(z0)), cons(mark(x1), x2)), MARK(cons(x1, x2)))
   MARK(sel(0, cons(x1, x2))) -> c8(A__SEL(0, cons(mark(x1), x2)), MARK(cons(x1, x2)))
   MARK(sel(x0, cons(x1, x2))) -> c8(MARK(cons(x1, x2)))
   MARK(sel(cons(z0, z1), cons(x1, x2))) -> c8(MARK(cons(x1, x2)))
   MARK(sel(from(x0), s(z0))) -> c8(A__SEL(a__from(mark(x0)), s(mark(z0))), MARK(s(z0)))
   MARK(sel(from(x0), 0)) -> c8(A__SEL(a__from(mark(x0)), 0), MARK(0))
   MARK(sel(from(x0), x1)) -> c8(A__SEL(cons(mark(mark(x0)), from(s(mark(x0)))), mark(x1)), MARK(x1))
   MARK(sel(from(x0), x1)) -> c8(A__SEL(from(mark(x0)), mark(x1)), MARK(x1))
   MARK(sel(from(from(z0)), x1)) -> c8(A__SEL(a__from(a__from(mark(z0))), mark(x1)), MARK(x1))
   MARK(sel(from(sel(z0, z1)), x1)) -> c8(A__SEL(a__from(a__sel(mark(z0), mark(z1))), mark(x1)), MARK(x1))
   MARK(sel(from(cons(z0, z1)), x1)) -> c8(A__SEL(a__from(cons(mark(z0), z1)), mark(x1)), MARK(x1))
   MARK(sel(from(s(z0)), x1)) -> c8(A__SEL(a__from(s(mark(z0))), mark(x1)), MARK(x1))
   MARK(sel(from(0), x1)) -> c8(A__SEL(a__from(0), mark(x1)), MARK(x1))
S tuples:
   A__FROM(z0) -> c(MARK(z0))
   A__SEL(0, cons(z0, z1)) -> c2(MARK(z0))
   MARK(from(z0)) -> c6(A__FROM(mark(z0)), MARK(z0))
   MARK(cons(z0, z1)) -> c9(MARK(z0))
   MARK(s(z0)) -> c10(MARK(z0))
   A__SEL(s(x0), cons(x1, s(z0))) -> c3(MARK(x0))
   A__SEL(s(x0), cons(x1, 0)) -> c3(MARK(x0))
   A__SEL(s(cons(z0, z1)), cons(x1, x2)) -> c3(MARK(cons(z0, z1)))
   A__SEL(s(x0), cons(x1, s(z0))) -> c4(MARK(s(z0)))
   A__SEL(s(cons(z0, z1)), cons(x1, x2)) -> c4(MARK(x2))
   MARK(sel(x0, s(z0))) -> c7(MARK(x0))
   MARK(sel(x0, 0)) -> c7(MARK(x0))
   MARK(sel(cons(z0, z1), x1)) -> c7(MARK(cons(z0, z1)))
   MARK(sel(sel(z0, z1), x1)) -> c8(A__SEL(a__sel(mark(z0), mark(z1)), mark(x1)), MARK(x1))
   MARK(sel(s(z0), x1)) -> c8(A__SEL(s(mark(z0)), mark(x1)), MARK(x1))
   MARK(sel(0, x1)) -> c8(A__SEL(0, mark(x1)), MARK(x1))
   MARK(sel(x0, s(z0))) -> c8(MARK(s(z0)))
   MARK(sel(cons(z0, z1), x1)) -> c8(MARK(x1))
   A__SEL(s(x0), cons(x1, from(x2))) -> c3(A__SEL(mark(x0), cons(mark(mark(x2)), from(s(mark(x2))))), MARK(x0))
   A__SEL(s(x0), cons(x1, from(from(z0)))) -> c3(A__SEL(mark(x0), a__from(a__from(mark(z0)))), MARK(x0))
   A__SEL(s(x0), cons(x1, from(sel(z0, z1)))) -> c3(A__SEL(mark(x0), a__from(a__sel(mark(z0), mark(z1)))), MARK(x0))
   A__SEL(s(x0), cons(x1, from(cons(z0, z1)))) -> c3(A__SEL(mark(x0), a__from(cons(mark(z0), z1))), MARK(x0))
   A__SEL(s(x0), cons(x1, from(s(z0)))) -> c3(A__SEL(mark(x0), a__from(s(mark(z0)))), MARK(x0))
   A__SEL(s(x0), cons(x1, from(0))) -> c3(A__SEL(mark(x0), a__from(0)), MARK(x0))
   A__SEL(s(from(z0)), cons(x1, from(x2))) -> c3(A__SEL(a__from(mark(z0)), a__from(mark(x2))), MARK(from(z0)))
   A__SEL(s(sel(z0, z1)), cons(x1, from(x2))) -> c3(A__SEL(a__sel(mark(z0), mark(z1)), a__from(mark(x2))), MARK(sel(z0, z1)))
   A__SEL(s(s(z0)), cons(x1, from(x2))) -> c3(A__SEL(s(mark(z0)), a__from(mark(x2))), MARK(s(z0)))
   A__SEL(s(x0), cons(x1, from(x2))) -> c3(MARK(x0))
   A__SEL(s(cons(z0, z1)), cons(x1, from(x2))) -> c3(MARK(cons(z0, z1)))
   A__SEL(s(0), cons(x1, from(x2))) -> c3(A__SEL(0, a__from(mark(x2))))
   A__SEL(s(x0), cons(x1, sel(x2, from(z0)))) -> c3(A__SEL(mark(x0), a__sel(mark(x2), a__from(mark(z0)))), MARK(x0))
   A__SEL(s(x0), cons(x1, sel(x2, sel(z0, z1)))) -> c3(A__SEL(mark(x0), a__sel(mark(x2), a__sel(mark(z0), mark(z1)))), MARK(x0))
   A__SEL(s(x0), cons(x1, sel(x2, cons(z0, z1)))) -> c3(A__SEL(mark(x0), a__sel(mark(x2), cons(mark(z0), z1))), MARK(x0))
   A__SEL(s(x0), cons(x1, sel(x2, s(z0)))) -> c3(A__SEL(mark(x0), a__sel(mark(x2), s(mark(z0)))), MARK(x0))
   A__SEL(s(x0), cons(x1, sel(x2, 0))) -> c3(A__SEL(mark(x0), a__sel(mark(x2), 0)), MARK(x0))
   A__SEL(s(x0), cons(x1, sel(from(z0), x3))) -> c3(A__SEL(mark(x0), a__sel(a__from(mark(z0)), mark(x3))), MARK(x0))
   A__SEL(s(x0), cons(x1, sel(sel(z0, z1), x3))) -> c3(A__SEL(mark(x0), a__sel(a__sel(mark(z0), mark(z1)), mark(x3))), MARK(x0))
   A__SEL(s(x0), cons(x1, sel(cons(z0, z1), x3))) -> c3(A__SEL(mark(x0), a__sel(cons(mark(z0), z1), mark(x3))), MARK(x0))
   A__SEL(s(x0), cons(x1, sel(s(z0), x3))) -> c3(A__SEL(mark(x0), a__sel(s(mark(z0)), mark(x3))), MARK(x0))
   A__SEL(s(x0), cons(x1, sel(0, x3))) -> c3(A__SEL(mark(x0), a__sel(0, mark(x3))), MARK(x0))
   A__SEL(s(from(z0)), cons(x1, sel(x2, x3))) -> c3(A__SEL(a__from(mark(z0)), a__sel(mark(x2), mark(x3))), MARK(from(z0)))
   A__SEL(s(sel(z0, z1)), cons(x1, sel(x2, x3))) -> c3(A__SEL(a__sel(mark(z0), mark(z1)), a__sel(mark(x2), mark(x3))), MARK(sel(z0, z1)))
   A__SEL(s(s(z0)), cons(x1, sel(x2, x3))) -> c3(A__SEL(s(mark(z0)), a__sel(mark(x2), mark(x3))), MARK(s(z0)))
   A__SEL(s(x0), cons(x1, sel(x2, x3))) -> c3(MARK(x0))
   A__SEL(s(cons(z0, z1)), cons(x1, sel(x2, x3))) -> c3(MARK(cons(z0, z1)))
   A__SEL(s(0), cons(x1, sel(x2, x3))) -> c3(A__SEL(0, a__sel(mark(x2), mark(x3))))
   A__SEL(s(x0), cons(x1, cons(from(z0), x3))) -> c3(A__SEL(mark(x0), cons(a__from(mark(z0)), x3)), MARK(x0))
   A__SEL(s(x0), cons(x1, cons(sel(z0, z1), x3))) -> c3(A__SEL(mark(x0), cons(a__sel(mark(z0), mark(z1)), x3)), MARK(x0))
   A__SEL(s(x0), cons(x1, cons(cons(z0, z1), x3))) -> c3(A__SEL(mark(x0), cons(cons(mark(z0), z1), x3)), MARK(x0))
   A__SEL(s(x0), cons(x1, cons(s(z0), x3))) -> c3(A__SEL(mark(x0), cons(s(mark(z0)), x3)), MARK(x0))
   A__SEL(s(x0), cons(x1, cons(0, x3))) -> c3(A__SEL(mark(x0), cons(0, x3)), MARK(x0))
   A__SEL(s(from(z0)), cons(x1, cons(x2, x3))) -> c3(A__SEL(a__from(mark(z0)), cons(mark(x2), x3)), MARK(from(z0)))
   A__SEL(s(sel(z0, z1)), cons(x1, cons(x2, x3))) -> c3(A__SEL(a__sel(mark(z0), mark(z1)), cons(mark(x2), x3)), MARK(sel(z0, z1)))
   A__SEL(s(s(z0)), cons(x1, cons(x2, x3))) -> c3(A__SEL(s(mark(z0)), cons(mark(x2), x3)), MARK(s(z0)))
   A__SEL(s(cons(z0, z1)), cons(x1, cons(x2, x3))) -> c3(MARK(cons(z0, z1)))
   A__SEL(s(0), cons(x1, cons(x2, x3))) -> c3(A__SEL(0, cons(mark(x2), x3)))
   A__SEL(s(from(from(z0))), cons(x1, x2)) -> c3(A__SEL(a__from(a__from(mark(z0))), mark(x2)), MARK(from(from(z0))))
   A__SEL(s(from(sel(z0, z1))), cons(x1, x2)) -> c3(A__SEL(a__from(a__sel(mark(z0), mark(z1))), mark(x2)), MARK(from(sel(z0, z1))))
   A__SEL(s(from(cons(z0, z1))), cons(x1, x2)) -> c3(A__SEL(a__from(cons(mark(z0), z1)), mark(x2)), MARK(from(cons(z0, z1))))
   A__SEL(s(from(s(z0))), cons(x1, x2)) -> c3(A__SEL(a__from(s(mark(z0))), mark(x2)), MARK(from(s(z0))))
   A__SEL(s(from(0)), cons(x1, x2)) -> c3(A__SEL(a__from(0), mark(x2)), MARK(from(0)))
   A__SEL(s(from(x0)), cons(x1, x2)) -> c3(MARK(from(x0)))
   A__SEL(s(from(x0)), cons(x1, s(z0))) -> c3(MARK(from(x0)))
   A__SEL(s(from(x0)), cons(x1, 0)) -> c3(MARK(from(x0)))
   A__SEL(s(sel(x0, from(z0))), cons(x2, x3)) -> c3(A__SEL(a__sel(mark(x0), a__from(mark(z0))), mark(x3)), MARK(sel(x0, from(z0))))
   A__SEL(s(sel(x0, sel(z0, z1))), cons(x2, x3)) -> c3(A__SEL(a__sel(mark(x0), a__sel(mark(z0), mark(z1))), mark(x3)), MARK(sel(x0, sel(z0, z1))))
   A__SEL(s(sel(x0, cons(z0, z1))), cons(x2, x3)) -> c3(A__SEL(a__sel(mark(x0), cons(mark(z0), z1)), mark(x3)), MARK(sel(x0, cons(z0, z1))))
   A__SEL(s(sel(x0, s(z0))), cons(x2, x3)) -> c3(A__SEL(a__sel(mark(x0), s(mark(z0))), mark(x3)), MARK(sel(x0, s(z0))))
   A__SEL(s(sel(x0, 0)), cons(x2, x3)) -> c3(A__SEL(a__sel(mark(x0), 0), mark(x3)), MARK(sel(x0, 0)))
   A__SEL(s(sel(from(z0), x1)), cons(x2, x3)) -> c3(A__SEL(a__sel(a__from(mark(z0)), mark(x1)), mark(x3)), MARK(sel(from(z0), x1)))
   A__SEL(s(sel(sel(z0, z1), x1)), cons(x2, x3)) -> c3(A__SEL(a__sel(a__sel(mark(z0), mark(z1)), mark(x1)), mark(x3)), MARK(sel(sel(z0, z1), x1)))
   A__SEL(s(sel(cons(z0, z1), x1)), cons(x2, x3)) -> c3(A__SEL(a__sel(cons(mark(z0), z1), mark(x1)), mark(x3)), MARK(sel(cons(z0, z1), x1)))
   A__SEL(s(sel(s(z0), x1)), cons(x2, x3)) -> c3(A__SEL(a__sel(s(mark(z0)), mark(x1)), mark(x3)), MARK(sel(s(z0), x1)))
   A__SEL(s(sel(0, x1)), cons(x2, x3)) -> c3(A__SEL(a__sel(0, mark(x1)), mark(x3)), MARK(sel(0, x1)))
   A__SEL(s(sel(x0, x1)), cons(x2, s(z0))) -> c3(MARK(sel(x0, x1)))
   A__SEL(s(sel(x0, x1)), cons(x2, 0)) -> c3(MARK(sel(x0, x1)))
   A__SEL(s(sel(x0, x1)), cons(x2, x3)) -> c3(MARK(sel(x0, x1)))
   A__SEL(s(s(from(z0))), cons(x1, x2)) -> c3(A__SEL(s(a__from(mark(z0))), mark(x2)), MARK(s(from(z0))))
   A__SEL(s(s(sel(z0, z1))), cons(x1, x2)) -> c3(A__SEL(s(a__sel(mark(z0), mark(z1))), mark(x2)), MARK(s(sel(z0, z1))))
   A__SEL(s(s(cons(z0, z1))), cons(x1, x2)) -> c3(A__SEL(s(cons(mark(z0), z1)), mark(x2)), MARK(s(cons(z0, z1))))
   A__SEL(s(s(s(z0))), cons(x1, x2)) -> c3(A__SEL(s(s(mark(z0))), mark(x2)), MARK(s(s(z0))))
   A__SEL(s(s(0)), cons(x1, x2)) -> c3(A__SEL(s(0), mark(x2)), MARK(s(0)))
   A__SEL(s(s(x0)), cons(x1, x2)) -> c3(MARK(s(x0)))
   A__SEL(s(s(x0)), cons(x1, s(z0))) -> c3(MARK(s(x0)))
   A__SEL(s(s(x0)), cons(x1, 0)) -> c3(MARK(s(x0)))
   A__SEL(s(x0), cons(x1, from(x2))) -> c4(A__SEL(mark(x0), cons(mark(mark(x2)), from(s(mark(x2))))), MARK(from(x2)))
   A__SEL(s(x0), cons(x1, from(from(z0)))) -> c4(A__SEL(mark(x0), a__from(a__from(mark(z0)))), MARK(from(from(z0))))
   A__SEL(s(x0), cons(x1, from(sel(z0, z1)))) -> c4(A__SEL(mark(x0), a__from(a__sel(mark(z0), mark(z1)))), MARK(from(sel(z0, z1))))
   A__SEL(s(x0), cons(x1, from(cons(z0, z1)))) -> c4(A__SEL(mark(x0), a__from(cons(mark(z0), z1))), MARK(from(cons(z0, z1))))
   A__SEL(s(x0), cons(x1, from(s(z0)))) -> c4(A__SEL(mark(x0), a__from(s(mark(z0)))), MARK(from(s(z0))))
   A__SEL(s(x0), cons(x1, from(0))) -> c4(A__SEL(mark(x0), a__from(0)), MARK(from(0)))
   A__SEL(s(from(z0)), cons(x1, from(x2))) -> c4(A__SEL(a__from(mark(z0)), a__from(mark(x2))), MARK(from(x2)))
   A__SEL(s(sel(z0, z1)), cons(x1, from(x2))) -> c4(A__SEL(a__sel(mark(z0), mark(z1)), a__from(mark(x2))), MARK(from(x2)))
   A__SEL(s(s(z0)), cons(x1, from(x2))) -> c4(A__SEL(s(mark(z0)), a__from(mark(x2))), MARK(from(x2)))
   A__SEL(s(0), cons(x1, from(x2))) -> c4(A__SEL(0, a__from(mark(x2))), MARK(from(x2)))
   A__SEL(s(x0), cons(x1, from(x2))) -> c4(MARK(from(x2)))
   A__SEL(s(cons(z0, z1)), cons(x1, from(x2))) -> c4(MARK(from(x2)))
   A__SEL(s(x0), cons(x1, sel(x2, from(z0)))) -> c4(A__SEL(mark(x0), a__sel(mark(x2), a__from(mark(z0)))), MARK(sel(x2, from(z0))))
   A__SEL(s(x0), cons(x1, sel(x2, sel(z0, z1)))) -> c4(A__SEL(mark(x0), a__sel(mark(x2), a__sel(mark(z0), mark(z1)))), MARK(sel(x2, sel(z0, z1))))
   A__SEL(s(x0), cons(x1, sel(x2, cons(z0, z1)))) -> c4(A__SEL(mark(x0), a__sel(mark(x2), cons(mark(z0), z1))), MARK(sel(x2, cons(z0, z1))))
   A__SEL(s(x0), cons(x1, sel(x2, s(z0)))) -> c4(A__SEL(mark(x0), a__sel(mark(x2), s(mark(z0)))), MARK(sel(x2, s(z0))))
   A__SEL(s(x0), cons(x1, sel(x2, 0))) -> c4(A__SEL(mark(x0), a__sel(mark(x2), 0)), MARK(sel(x2, 0)))
   A__SEL(s(x0), cons(x1, sel(from(z0), x3))) -> c4(A__SEL(mark(x0), a__sel(a__from(mark(z0)), mark(x3))), MARK(sel(from(z0), x3)))
   A__SEL(s(x0), cons(x1, sel(sel(z0, z1), x3))) -> c4(A__SEL(mark(x0), a__sel(a__sel(mark(z0), mark(z1)), mark(x3))), MARK(sel(sel(z0, z1), x3)))
   A__SEL(s(x0), cons(x1, sel(cons(z0, z1), x3))) -> c4(A__SEL(mark(x0), a__sel(cons(mark(z0), z1), mark(x3))), MARK(sel(cons(z0, z1), x3)))
   A__SEL(s(x0), cons(x1, sel(s(z0), x3))) -> c4(A__SEL(mark(x0), a__sel(s(mark(z0)), mark(x3))), MARK(sel(s(z0), x3)))
   A__SEL(s(x0), cons(x1, sel(0, x3))) -> c4(A__SEL(mark(x0), a__sel(0, mark(x3))), MARK(sel(0, x3)))
   A__SEL(s(from(z0)), cons(x1, sel(x2, x3))) -> c4(A__SEL(a__from(mark(z0)), a__sel(mark(x2), mark(x3))), MARK(sel(x2, x3)))
   A__SEL(s(sel(z0, z1)), cons(x1, sel(x2, x3))) -> c4(A__SEL(a__sel(mark(z0), mark(z1)), a__sel(mark(x2), mark(x3))), MARK(sel(x2, x3)))
   A__SEL(s(s(z0)), cons(x1, sel(x2, x3))) -> c4(A__SEL(s(mark(z0)), a__sel(mark(x2), mark(x3))), MARK(sel(x2, x3)))
   A__SEL(s(0), cons(x1, sel(x2, x3))) -> c4(A__SEL(0, a__sel(mark(x2), mark(x3))), MARK(sel(x2, x3)))
   A__SEL(s(x0), cons(x1, sel(x2, x3))) -> c4(MARK(sel(x2, x3)))
   A__SEL(s(cons(z0, z1)), cons(x1, sel(x2, x3))) -> c4(MARK(sel(x2, x3)))
   A__SEL(s(x0), cons(x1, cons(from(z0), x3))) -> c4(A__SEL(mark(x0), cons(a__from(mark(z0)), x3)), MARK(cons(from(z0), x3)))
   A__SEL(s(x0), cons(x1, cons(sel(z0, z1), x3))) -> c4(A__SEL(mark(x0), cons(a__sel(mark(z0), mark(z1)), x3)), MARK(cons(sel(z0, z1), x3)))
   A__SEL(s(x0), cons(x1, cons(cons(z0, z1), x3))) -> c4(A__SEL(mark(x0), cons(cons(mark(z0), z1), x3)), MARK(cons(cons(z0, z1), x3)))
   A__SEL(s(x0), cons(x1, cons(s(z0), x3))) -> c4(A__SEL(mark(x0), cons(s(mark(z0)), x3)), MARK(cons(s(z0), x3)))
   A__SEL(s(x0), cons(x1, cons(0, x3))) -> c4(A__SEL(mark(x0), cons(0, x3)), MARK(cons(0, x3)))
   A__SEL(s(from(z0)), cons(x1, cons(x2, x3))) -> c4(A__SEL(a__from(mark(z0)), cons(mark(x2), x3)), MARK(cons(x2, x3)))
   A__SEL(s(sel(z0, z1)), cons(x1, cons(x2, x3))) -> c4(A__SEL(a__sel(mark(z0), mark(z1)), cons(mark(x2), x3)), MARK(cons(x2, x3)))
   A__SEL(s(s(z0)), cons(x1, cons(x2, x3))) -> c4(A__SEL(s(mark(z0)), cons(mark(x2), x3)), MARK(cons(x2, x3)))
   A__SEL(s(0), cons(x1, cons(x2, x3))) -> c4(A__SEL(0, cons(mark(x2), x3)), MARK(cons(x2, x3)))
   A__SEL(s(x0), cons(x1, cons(x2, x3))) -> c4(MARK(cons(x2, x3)))
   A__SEL(s(cons(z0, z1)), cons(x1, cons(x2, x3))) -> c4(MARK(cons(x2, x3)))
   A__SEL(s(from(from(z0))), cons(x1, x2)) -> c4(A__SEL(a__from(a__from(mark(z0))), mark(x2)), MARK(x2))
   A__SEL(s(from(sel(z0, z1))), cons(x1, x2)) -> c4(A__SEL(a__from(a__sel(mark(z0), mark(z1))), mark(x2)), MARK(x2))
   A__SEL(s(from(cons(z0, z1))), cons(x1, x2)) -> c4(A__SEL(a__from(cons(mark(z0), z1)), mark(x2)), MARK(x2))
   A__SEL(s(from(s(z0))), cons(x1, x2)) -> c4(A__SEL(a__from(s(mark(z0))), mark(x2)), MARK(x2))
   A__SEL(s(from(0)), cons(x1, x2)) -> c4(A__SEL(a__from(0), mark(x2)), MARK(x2))
   A__SEL(s(from(x0)), cons(x1, s(z0))) -> c4(MARK(s(z0)))
   A__SEL(s(from(x0)), cons(x1, x2)) -> c4(MARK(x2))
   A__SEL(s(sel(x0, from(z0))), cons(x2, x3)) -> c4(A__SEL(a__sel(mark(x0), a__from(mark(z0))), mark(x3)), MARK(x3))
   A__SEL(s(sel(x0, sel(z0, z1))), cons(x2, x3)) -> c4(A__SEL(a__sel(mark(x0), a__sel(mark(z0), mark(z1))), mark(x3)), MARK(x3))
   A__SEL(s(sel(x0, cons(z0, z1))), cons(x2, x3)) -> c4(A__SEL(a__sel(mark(x0), cons(mark(z0), z1)), mark(x3)), MARK(x3))
   A__SEL(s(sel(x0, s(z0))), cons(x2, x3)) -> c4(A__SEL(a__sel(mark(x0), s(mark(z0))), mark(x3)), MARK(x3))
   A__SEL(s(sel(x0, 0)), cons(x2, x3)) -> c4(A__SEL(a__sel(mark(x0), 0), mark(x3)), MARK(x3))
   A__SEL(s(sel(from(z0), x1)), cons(x2, x3)) -> c4(A__SEL(a__sel(a__from(mark(z0)), mark(x1)), mark(x3)), MARK(x3))
   A__SEL(s(sel(sel(z0, z1), x1)), cons(x2, x3)) -> c4(A__SEL(a__sel(a__sel(mark(z0), mark(z1)), mark(x1)), mark(x3)), MARK(x3))
   A__SEL(s(sel(cons(z0, z1), x1)), cons(x2, x3)) -> c4(A__SEL(a__sel(cons(mark(z0), z1), mark(x1)), mark(x3)), MARK(x3))
   A__SEL(s(sel(s(z0), x1)), cons(x2, x3)) -> c4(A__SEL(a__sel(s(mark(z0)), mark(x1)), mark(x3)), MARK(x3))
   A__SEL(s(sel(0, x1)), cons(x2, x3)) -> c4(A__SEL(a__sel(0, mark(x1)), mark(x3)), MARK(x3))
   A__SEL(s(sel(x0, x1)), cons(x2, s(z0))) -> c4(MARK(s(z0)))
   A__SEL(s(sel(x0, x1)), cons(x2, x3)) -> c4(MARK(x3))
   A__SEL(s(s(from(z0))), cons(x1, x2)) -> c4(A__SEL(s(a__from(mark(z0))), mark(x2)), MARK(x2))
   A__SEL(s(s(sel(z0, z1))), cons(x1, x2)) -> c4(A__SEL(s(a__sel(mark(z0), mark(z1))), mark(x2)), MARK(x2))
   A__SEL(s(s(cons(z0, z1))), cons(x1, x2)) -> c4(A__SEL(s(cons(mark(z0), z1)), mark(x2)), MARK(x2))
   A__SEL(s(s(s(z0))), cons(x1, x2)) -> c4(A__SEL(s(s(mark(z0))), mark(x2)), MARK(x2))
   A__SEL(s(s(0)), cons(x1, x2)) -> c4(A__SEL(s(0), mark(x2)), MARK(x2))
   A__SEL(s(s(x0)), cons(x1, s(z0))) -> c4(MARK(s(z0)))
   A__SEL(s(0), cons(x0, s(z0))) -> c4(MARK(s(z0)))
   MARK(sel(x0, from(x1))) -> c7(A__SEL(mark(x0), cons(mark(mark(x1)), from(s(mark(x1))))), MARK(x0))
   MARK(sel(x0, from(from(z0)))) -> c7(A__SEL(mark(x0), a__from(a__from(mark(z0)))), MARK(x0))
   MARK(sel(x0, from(sel(z0, z1)))) -> c7(A__SEL(mark(x0), a__from(a__sel(mark(z0), mark(z1)))), MARK(x0))
   MARK(sel(x0, from(cons(z0, z1)))) -> c7(A__SEL(mark(x0), a__from(cons(mark(z0), z1))), MARK(x0))
   MARK(sel(x0, from(s(z0)))) -> c7(A__SEL(mark(x0), a__from(s(mark(z0)))), MARK(x0))
   MARK(sel(x0, from(0))) -> c7(A__SEL(mark(x0), a__from(0)), MARK(x0))
   MARK(sel(from(z0), from(x1))) -> c7(A__SEL(a__from(mark(z0)), a__from(mark(x1))), MARK(from(z0)))
   MARK(sel(sel(z0, z1), from(x1))) -> c7(A__SEL(a__sel(mark(z0), mark(z1)), a__from(mark(x1))), MARK(sel(z0, z1)))
   MARK(sel(s(z0), from(x1))) -> c7(A__SEL(s(mark(z0)), a__from(mark(x1))), MARK(s(z0)))
   MARK(sel(x0, from(x1))) -> c7(MARK(x0))
   MARK(sel(cons(z0, z1), from(x1))) -> c7(MARK(cons(z0, z1)))
   MARK(sel(0, from(x1))) -> c7(A__SEL(0, a__from(mark(x1))))
   MARK(sel(x0, sel(x1, from(z0)))) -> c7(A__SEL(mark(x0), a__sel(mark(x1), a__from(mark(z0)))), MARK(x0))
   MARK(sel(x0, sel(x1, sel(z0, z1)))) -> c7(A__SEL(mark(x0), a__sel(mark(x1), a__sel(mark(z0), mark(z1)))), MARK(x0))
   MARK(sel(x0, sel(x1, cons(z0, z1)))) -> c7(A__SEL(mark(x0), a__sel(mark(x1), cons(mark(z0), z1))), MARK(x0))
   MARK(sel(x0, sel(x1, s(z0)))) -> c7(A__SEL(mark(x0), a__sel(mark(x1), s(mark(z0)))), MARK(x0))
   MARK(sel(x0, sel(x1, 0))) -> c7(A__SEL(mark(x0), a__sel(mark(x1), 0)), MARK(x0))
   MARK(sel(x0, sel(from(z0), x2))) -> c7(A__SEL(mark(x0), a__sel(a__from(mark(z0)), mark(x2))), MARK(x0))
   MARK(sel(x0, sel(sel(z0, z1), x2))) -> c7(A__SEL(mark(x0), a__sel(a__sel(mark(z0), mark(z1)), mark(x2))), MARK(x0))
   MARK(sel(x0, sel(cons(z0, z1), x2))) -> c7(A__SEL(mark(x0), a__sel(cons(mark(z0), z1), mark(x2))), MARK(x0))
   MARK(sel(x0, sel(s(z0), x2))) -> c7(A__SEL(mark(x0), a__sel(s(mark(z0)), mark(x2))), MARK(x0))
   MARK(sel(x0, sel(0, x2))) -> c7(A__SEL(mark(x0), a__sel(0, mark(x2))), MARK(x0))
   MARK(sel(from(z0), sel(x1, x2))) -> c7(A__SEL(a__from(mark(z0)), a__sel(mark(x1), mark(x2))), MARK(from(z0)))
   MARK(sel(sel(z0, z1), sel(x1, x2))) -> c7(A__SEL(a__sel(mark(z0), mark(z1)), a__sel(mark(x1), mark(x2))), MARK(sel(z0, z1)))
   MARK(sel(s(z0), sel(x1, x2))) -> c7(A__SEL(s(mark(z0)), a__sel(mark(x1), mark(x2))), MARK(s(z0)))
   MARK(sel(x0, sel(x1, x2))) -> c7(MARK(x0))
   MARK(sel(cons(z0, z1), sel(x1, x2))) -> c7(MARK(cons(z0, z1)))
   MARK(sel(0, sel(x1, x2))) -> c7(A__SEL(0, a__sel(mark(x1), mark(x2))))
   MARK(sel(x0, cons(from(z0), x2))) -> c7(A__SEL(mark(x0), cons(a__from(mark(z0)), x2)), MARK(x0))
   MARK(sel(x0, cons(sel(z0, z1), x2))) -> c7(A__SEL(mark(x0), cons(a__sel(mark(z0), mark(z1)), x2)), MARK(x0))
   MARK(sel(x0, cons(cons(z0, z1), x2))) -> c7(A__SEL(mark(x0), cons(cons(mark(z0), z1), x2)), MARK(x0))
   MARK(sel(x0, cons(s(z0), x2))) -> c7(A__SEL(mark(x0), cons(s(mark(z0)), x2)), MARK(x0))
   MARK(sel(x0, cons(0, x2))) -> c7(A__SEL(mark(x0), cons(0, x2)), MARK(x0))
   MARK(sel(from(z0), cons(x1, x2))) -> c7(A__SEL(a__from(mark(z0)), cons(mark(x1), x2)), MARK(from(z0)))
   MARK(sel(sel(z0, z1), cons(x1, x2))) -> c7(A__SEL(a__sel(mark(z0), mark(z1)), cons(mark(x1), x2)), MARK(sel(z0, z1)))
   MARK(sel(s(z0), cons(x1, x2))) -> c7(A__SEL(s(mark(z0)), cons(mark(x1), x2)), MARK(s(z0)))
   MARK(sel(cons(z0, z1), cons(x1, x2))) -> c7(MARK(cons(z0, z1)))
   MARK(sel(0, cons(x1, x2))) -> c7(A__SEL(0, cons(mark(x1), x2)))
   MARK(sel(from(from(z0)), x1)) -> c7(A__SEL(a__from(a__from(mark(z0))), mark(x1)), MARK(from(from(z0))))
   MARK(sel(from(sel(z0, z1)), x1)) -> c7(A__SEL(a__from(a__sel(mark(z0), mark(z1))), mark(x1)), MARK(from(sel(z0, z1))))
   MARK(sel(from(cons(z0, z1)), x1)) -> c7(A__SEL(a__from(cons(mark(z0), z1)), mark(x1)), MARK(from(cons(z0, z1))))
   MARK(sel(from(s(z0)), x1)) -> c7(A__SEL(a__from(s(mark(z0))), mark(x1)), MARK(from(s(z0))))
   MARK(sel(from(0), x1)) -> c7(A__SEL(a__from(0), mark(x1)), MARK(from(0)))
   MARK(sel(from(x0), x1)) -> c7(MARK(from(x0)))
   MARK(sel(from(x0), s(z0))) -> c7(MARK(from(x0)))
   MARK(sel(from(x0), 0)) -> c7(MARK(from(x0)))
   MARK(sel(sel(x0, from(z0)), x2)) -> c7(A__SEL(a__sel(mark(x0), a__from(mark(z0))), mark(x2)), MARK(sel(x0, from(z0))))
   MARK(sel(sel(x0, sel(z0, z1)), x2)) -> c7(A__SEL(a__sel(mark(x0), a__sel(mark(z0), mark(z1))), mark(x2)), MARK(sel(x0, sel(z0, z1))))
   MARK(sel(sel(x0, cons(z0, z1)), x2)) -> c7(A__SEL(a__sel(mark(x0), cons(mark(z0), z1)), mark(x2)), MARK(sel(x0, cons(z0, z1))))
   MARK(sel(sel(x0, s(z0)), x2)) -> c7(A__SEL(a__sel(mark(x0), s(mark(z0))), mark(x2)), MARK(sel(x0, s(z0))))
   MARK(sel(sel(x0, 0), x2)) -> c7(A__SEL(a__sel(mark(x0), 0), mark(x2)), MARK(sel(x0, 0)))
   MARK(sel(sel(from(z0), x1), x2)) -> c7(A__SEL(a__sel(a__from(mark(z0)), mark(x1)), mark(x2)), MARK(sel(from(z0), x1)))
   MARK(sel(sel(sel(z0, z1), x1), x2)) -> c7(A__SEL(a__sel(a__sel(mark(z0), mark(z1)), mark(x1)), mark(x2)), MARK(sel(sel(z0, z1), x1)))
   MARK(sel(sel(cons(z0, z1), x1), x2)) -> c7(A__SEL(a__sel(cons(mark(z0), z1), mark(x1)), mark(x2)), MARK(sel(cons(z0, z1), x1)))
   MARK(sel(sel(s(z0), x1), x2)) -> c7(A__SEL(a__sel(s(mark(z0)), mark(x1)), mark(x2)), MARK(sel(s(z0), x1)))
   MARK(sel(sel(0, x1), x2)) -> c7(A__SEL(a__sel(0, mark(x1)), mark(x2)), MARK(sel(0, x1)))
   MARK(sel(sel(x0, x1), s(z0))) -> c7(MARK(sel(x0, x1)))
   MARK(sel(sel(x0, x1), 0)) -> c7(MARK(sel(x0, x1)))
   MARK(sel(sel(x0, x1), x2)) -> c7(MARK(sel(x0, x1)))
   MARK(sel(s(from(z0)), x1)) -> c7(A__SEL(s(a__from(mark(z0))), mark(x1)), MARK(s(from(z0))))
   MARK(sel(s(sel(z0, z1)), x1)) -> c7(A__SEL(s(a__sel(mark(z0), mark(z1))), mark(x1)), MARK(s(sel(z0, z1))))
   MARK(sel(s(cons(z0, z1)), x1)) -> c7(A__SEL(s(cons(mark(z0), z1)), mark(x1)), MARK(s(cons(z0, z1))))
   MARK(sel(s(s(z0)), x1)) -> c7(A__SEL(s(s(mark(z0))), mark(x1)), MARK(s(s(z0))))
   MARK(sel(s(0), x1)) -> c7(A__SEL(s(0), mark(x1)), MARK(s(0)))
   MARK(sel(s(x0), x1)) -> c7(MARK(s(x0)))
   MARK(sel(s(x0), s(z0))) -> c7(MARK(s(x0)))
   MARK(sel(s(x0), 0)) -> c7(MARK(s(x0)))
   MARK(sel(x0, from(x1))) -> c8(A__SEL(mark(x0), cons(mark(mark(x1)), from(s(mark(x1))))), MARK(from(x1)))
   MARK(sel(x0, from(from(z0)))) -> c8(A__SEL(mark(x0), a__from(a__from(mark(z0)))), MARK(from(from(z0))))
   MARK(sel(x0, from(sel(z0, z1)))) -> c8(A__SEL(mark(x0), a__from(a__sel(mark(z0), mark(z1)))), MARK(from(sel(z0, z1))))
   MARK(sel(x0, from(cons(z0, z1)))) -> c8(A__SEL(mark(x0), a__from(cons(mark(z0), z1))), MARK(from(cons(z0, z1))))
   MARK(sel(x0, from(s(z0)))) -> c8(A__SEL(mark(x0), a__from(s(mark(z0)))), MARK(from(s(z0))))
   MARK(sel(x0, from(0))) -> c8(A__SEL(mark(x0), a__from(0)), MARK(from(0)))
   MARK(sel(from(z0), from(x1))) -> c8(A__SEL(a__from(mark(z0)), a__from(mark(x1))), MARK(from(x1)))
   MARK(sel(sel(z0, z1), from(x1))) -> c8(A__SEL(a__sel(mark(z0), mark(z1)), a__from(mark(x1))), MARK(from(x1)))
   MARK(sel(s(z0), from(x1))) -> c8(A__SEL(s(mark(z0)), a__from(mark(x1))), MARK(from(x1)))
   MARK(sel(0, from(x1))) -> c8(A__SEL(0, a__from(mark(x1))), MARK(from(x1)))
   MARK(sel(x0, from(x1))) -> c8(MARK(from(x1)))
   MARK(sel(cons(z0, z1), from(x1))) -> c8(MARK(from(x1)))
   MARK(sel(x0, sel(x1, from(z0)))) -> c8(A__SEL(mark(x0), a__sel(mark(x1), a__from(mark(z0)))), MARK(sel(x1, from(z0))))
   MARK(sel(x0, sel(x1, sel(z0, z1)))) -> c8(A__SEL(mark(x0), a__sel(mark(x1), a__sel(mark(z0), mark(z1)))), MARK(sel(x1, sel(z0, z1))))
   MARK(sel(x0, sel(x1, cons(z0, z1)))) -> c8(A__SEL(mark(x0), a__sel(mark(x1), cons(mark(z0), z1))), MARK(sel(x1, cons(z0, z1))))
   MARK(sel(x0, sel(x1, s(z0)))) -> c8(A__SEL(mark(x0), a__sel(mark(x1), s(mark(z0)))), MARK(sel(x1, s(z0))))
   MARK(sel(x0, sel(x1, 0))) -> c8(A__SEL(mark(x0), a__sel(mark(x1), 0)), MARK(sel(x1, 0)))
   MARK(sel(x0, sel(from(z0), x2))) -> c8(A__SEL(mark(x0), a__sel(a__from(mark(z0)), mark(x2))), MARK(sel(from(z0), x2)))
   MARK(sel(x0, sel(sel(z0, z1), x2))) -> c8(A__SEL(mark(x0), a__sel(a__sel(mark(z0), mark(z1)), mark(x2))), MARK(sel(sel(z0, z1), x2)))
   MARK(sel(x0, sel(cons(z0, z1), x2))) -> c8(A__SEL(mark(x0), a__sel(cons(mark(z0), z1), mark(x2))), MARK(sel(cons(z0, z1), x2)))
   MARK(sel(x0, sel(s(z0), x2))) -> c8(A__SEL(mark(x0), a__sel(s(mark(z0)), mark(x2))), MARK(sel(s(z0), x2)))
   MARK(sel(x0, sel(0, x2))) -> c8(A__SEL(mark(x0), a__sel(0, mark(x2))), MARK(sel(0, x2)))
   MARK(sel(from(z0), sel(x1, x2))) -> c8(A__SEL(a__from(mark(z0)), a__sel(mark(x1), mark(x2))), MARK(sel(x1, x2)))
   MARK(sel(sel(z0, z1), sel(x1, x2))) -> c8(A__SEL(a__sel(mark(z0), mark(z1)), a__sel(mark(x1), mark(x2))), MARK(sel(x1, x2)))
   MARK(sel(s(z0), sel(x1, x2))) -> c8(A__SEL(s(mark(z0)), a__sel(mark(x1), mark(x2))), MARK(sel(x1, x2)))
   MARK(sel(0, sel(x1, x2))) -> c8(A__SEL(0, a__sel(mark(x1), mark(x2))), MARK(sel(x1, x2)))
   MARK(sel(x0, sel(x1, x2))) -> c8(MARK(sel(x1, x2)))
   MARK(sel(cons(z0, z1), sel(x1, x2))) -> c8(MARK(sel(x1, x2)))
   MARK(sel(x0, cons(from(z0), x2))) -> c8(A__SEL(mark(x0), cons(a__from(mark(z0)), x2)), MARK(cons(from(z0), x2)))
   MARK(sel(x0, cons(sel(z0, z1), x2))) -> c8(A__SEL(mark(x0), cons(a__sel(mark(z0), mark(z1)), x2)), MARK(cons(sel(z0, z1), x2)))
   MARK(sel(x0, cons(cons(z0, z1), x2))) -> c8(A__SEL(mark(x0), cons(cons(mark(z0), z1), x2)), MARK(cons(cons(z0, z1), x2)))
   MARK(sel(x0, cons(s(z0), x2))) -> c8(A__SEL(mark(x0), cons(s(mark(z0)), x2)), MARK(cons(s(z0), x2)))
   MARK(sel(x0, cons(0, x2))) -> c8(A__SEL(mark(x0), cons(0, x2)), MARK(cons(0, x2)))
   MARK(sel(from(z0), cons(x1, x2))) -> c8(A__SEL(a__from(mark(z0)), cons(mark(x1), x2)), MARK(cons(x1, x2)))
   MARK(sel(sel(z0, z1), cons(x1, x2))) -> c8(A__SEL(a__sel(mark(z0), mark(z1)), cons(mark(x1), x2)), MARK(cons(x1, x2)))
   MARK(sel(s(z0), cons(x1, x2))) -> c8(A__SEL(s(mark(z0)), cons(mark(x1), x2)), MARK(cons(x1, x2)))
   MARK(sel(0, cons(x1, x2))) -> c8(A__SEL(0, cons(mark(x1), x2)), MARK(cons(x1, x2)))
   MARK(sel(x0, cons(x1, x2))) -> c8(MARK(cons(x1, x2)))
   MARK(sel(cons(z0, z1), cons(x1, x2))) -> c8(MARK(cons(x1, x2)))
   MARK(sel(from(x0), s(z0))) -> c8(A__SEL(a__from(mark(x0)), s(mark(z0))), MARK(s(z0)))
   MARK(sel(from(x0), 0)) -> c8(A__SEL(a__from(mark(x0)), 0), MARK(0))
   MARK(sel(from(x0), x1)) -> c8(A__SEL(cons(mark(mark(x0)), from(s(mark(x0)))), mark(x1)), MARK(x1))
   MARK(sel(from(x0), x1)) -> c8(A__SEL(from(mark(x0)), mark(x1)), MARK(x1))
   MARK(sel(from(from(z0)), x1)) -> c8(A__SEL(a__from(a__from(mark(z0))), mark(x1)), MARK(x1))
   MARK(sel(from(sel(z0, z1)), x1)) -> c8(A__SEL(a__from(a__sel(mark(z0), mark(z1))), mark(x1)), MARK(x1))
   MARK(sel(from(cons(z0, z1)), x1)) -> c8(A__SEL(a__from(cons(mark(z0), z1)), mark(x1)), MARK(x1))
   MARK(sel(from(s(z0)), x1)) -> c8(A__SEL(a__from(s(mark(z0))), mark(x1)), MARK(x1))
   MARK(sel(from(0), x1)) -> c8(A__SEL(a__from(0), mark(x1)), MARK(x1))
K tuples:none
Defined Rule Symbols:   a__from_1, a__sel_2, mark_1

Defined Pair Symbols:   A__FROM_1, A__SEL_2, MARK_1

Compound Symbols:   c_1, c2_1, c6_2, c9_1, c10_1, c3_1, c4_1, c7_1, c8_2, c8_1, c3_2, c4_2, c7_2


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

(183) CdtLeafRemovalProof (BOTH BOUNDS(ID, ID))
Removed 1 trailing nodes:
   MARK(sel(from(x0), 0)) -> c8(A__SEL(a__from(mark(x0)), 0), MARK(0))

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

(184)
Obligation:
Complexity Dependency Tuples Problem

Rules:
   a__from(z0) -> cons(mark(z0), from(s(z0)))
   a__from(z0) -> from(z0)
   a__sel(0, cons(z0, z1)) -> mark(z0)
   a__sel(s(z0), cons(z1, z2)) -> a__sel(mark(z0), mark(z2))
   a__sel(z0, z1) -> sel(z0, z1)
   mark(from(z0)) -> a__from(mark(z0))
   mark(sel(z0, z1)) -> a__sel(mark(z0), mark(z1))
   mark(cons(z0, z1)) -> cons(mark(z0), z1)
   mark(s(z0)) -> s(mark(z0))
   mark(0) -> 0
Tuples:
   A__FROM(z0) -> c(MARK(z0))
   A__SEL(0, cons(z0, z1)) -> c2(MARK(z0))
   MARK(from(z0)) -> c6(A__FROM(mark(z0)), MARK(z0))
   MARK(cons(z0, z1)) -> c9(MARK(z0))
   MARK(s(z0)) -> c10(MARK(z0))
   A__SEL(s(x0), cons(x1, s(z0))) -> c3(MARK(x0))
   A__SEL(s(x0), cons(x1, 0)) -> c3(MARK(x0))
   A__SEL(s(cons(z0, z1)), cons(x1, x2)) -> c3(MARK(cons(z0, z1)))
   A__SEL(s(x0), cons(x1, s(z0))) -> c4(MARK(s(z0)))
   A__SEL(s(cons(z0, z1)), cons(x1, x2)) -> c4(MARK(x2))
   MARK(sel(x0, s(z0))) -> c7(MARK(x0))
   MARK(sel(x0, 0)) -> c7(MARK(x0))
   MARK(sel(cons(z0, z1), x1)) -> c7(MARK(cons(z0, z1)))
   MARK(sel(sel(z0, z1), x1)) -> c8(A__SEL(a__sel(mark(z0), mark(z1)), mark(x1)), MARK(x1))
   MARK(sel(s(z0), x1)) -> c8(A__SEL(s(mark(z0)), mark(x1)), MARK(x1))
   MARK(sel(0, x1)) -> c8(A__SEL(0, mark(x1)), MARK(x1))
   MARK(sel(x0, s(z0))) -> c8(MARK(s(z0)))
   MARK(sel(cons(z0, z1), x1)) -> c8(MARK(x1))
   A__SEL(s(x0), cons(x1, from(x2))) -> c3(A__SEL(mark(x0), cons(mark(mark(x2)), from(s(mark(x2))))), MARK(x0))
   A__SEL(s(x0), cons(x1, from(from(z0)))) -> c3(A__SEL(mark(x0), a__from(a__from(mark(z0)))), MARK(x0))
   A__SEL(s(x0), cons(x1, from(sel(z0, z1)))) -> c3(A__SEL(mark(x0), a__from(a__sel(mark(z0), mark(z1)))), MARK(x0))
   A__SEL(s(x0), cons(x1, from(cons(z0, z1)))) -> c3(A__SEL(mark(x0), a__from(cons(mark(z0), z1))), MARK(x0))
   A__SEL(s(x0), cons(x1, from(s(z0)))) -> c3(A__SEL(mark(x0), a__from(s(mark(z0)))), MARK(x0))
   A__SEL(s(x0), cons(x1, from(0))) -> c3(A__SEL(mark(x0), a__from(0)), MARK(x0))
   A__SEL(s(from(z0)), cons(x1, from(x2))) -> c3(A__SEL(a__from(mark(z0)), a__from(mark(x2))), MARK(from(z0)))
   A__SEL(s(sel(z0, z1)), cons(x1, from(x2))) -> c3(A__SEL(a__sel(mark(z0), mark(z1)), a__from(mark(x2))), MARK(sel(z0, z1)))
   A__SEL(s(s(z0)), cons(x1, from(x2))) -> c3(A__SEL(s(mark(z0)), a__from(mark(x2))), MARK(s(z0)))
   A__SEL(s(x0), cons(x1, from(x2))) -> c3(MARK(x0))
   A__SEL(s(cons(z0, z1)), cons(x1, from(x2))) -> c3(MARK(cons(z0, z1)))
   A__SEL(s(0), cons(x1, from(x2))) -> c3(A__SEL(0, a__from(mark(x2))))
   A__SEL(s(x0), cons(x1, sel(x2, from(z0)))) -> c3(A__SEL(mark(x0), a__sel(mark(x2), a__from(mark(z0)))), MARK(x0))
   A__SEL(s(x0), cons(x1, sel(x2, sel(z0, z1)))) -> c3(A__SEL(mark(x0), a__sel(mark(x2), a__sel(mark(z0), mark(z1)))), MARK(x0))
   A__SEL(s(x0), cons(x1, sel(x2, cons(z0, z1)))) -> c3(A__SEL(mark(x0), a__sel(mark(x2), cons(mark(z0), z1))), MARK(x0))
   A__SEL(s(x0), cons(x1, sel(x2, s(z0)))) -> c3(A__SEL(mark(x0), a__sel(mark(x2), s(mark(z0)))), MARK(x0))
   A__SEL(s(x0), cons(x1, sel(x2, 0))) -> c3(A__SEL(mark(x0), a__sel(mark(x2), 0)), MARK(x0))
   A__SEL(s(x0), cons(x1, sel(from(z0), x3))) -> c3(A__SEL(mark(x0), a__sel(a__from(mark(z0)), mark(x3))), MARK(x0))
   A__SEL(s(x0), cons(x1, sel(sel(z0, z1), x3))) -> c3(A__SEL(mark(x0), a__sel(a__sel(mark(z0), mark(z1)), mark(x3))), MARK(x0))
   A__SEL(s(x0), cons(x1, sel(cons(z0, z1), x3))) -> c3(A__SEL(mark(x0), a__sel(cons(mark(z0), z1), mark(x3))), MARK(x0))
   A__SEL(s(x0), cons(x1, sel(s(z0), x3))) -> c3(A__SEL(mark(x0), a__sel(s(mark(z0)), mark(x3))), MARK(x0))
   A__SEL(s(x0), cons(x1, sel(0, x3))) -> c3(A__SEL(mark(x0), a__sel(0, mark(x3))), MARK(x0))
   A__SEL(s(from(z0)), cons(x1, sel(x2, x3))) -> c3(A__SEL(a__from(mark(z0)), a__sel(mark(x2), mark(x3))), MARK(from(z0)))
   A__SEL(s(sel(z0, z1)), cons(x1, sel(x2, x3))) -> c3(A__SEL(a__sel(mark(z0), mark(z1)), a__sel(mark(x2), mark(x3))), MARK(sel(z0, z1)))
   A__SEL(s(s(z0)), cons(x1, sel(x2, x3))) -> c3(A__SEL(s(mark(z0)), a__sel(mark(x2), mark(x3))), MARK(s(z0)))
   A__SEL(s(x0), cons(x1, sel(x2, x3))) -> c3(MARK(x0))
   A__SEL(s(cons(z0, z1)), cons(x1, sel(x2, x3))) -> c3(MARK(cons(z0, z1)))
   A__SEL(s(0), cons(x1, sel(x2, x3))) -> c3(A__SEL(0, a__sel(mark(x2), mark(x3))))
   A__SEL(s(x0), cons(x1, cons(from(z0), x3))) -> c3(A__SEL(mark(x0), cons(a__from(mark(z0)), x3)), MARK(x0))
   A__SEL(s(x0), cons(x1, cons(sel(z0, z1), x3))) -> c3(A__SEL(mark(x0), cons(a__sel(mark(z0), mark(z1)), x3)), MARK(x0))
   A__SEL(s(x0), cons(x1, cons(cons(z0, z1), x3))) -> c3(A__SEL(mark(x0), cons(cons(mark(z0), z1), x3)), MARK(x0))
   A__SEL(s(x0), cons(x1, cons(s(z0), x3))) -> c3(A__SEL(mark(x0), cons(s(mark(z0)), x3)), MARK(x0))
   A__SEL(s(x0), cons(x1, cons(0, x3))) -> c3(A__SEL(mark(x0), cons(0, x3)), MARK(x0))
   A__SEL(s(from(z0)), cons(x1, cons(x2, x3))) -> c3(A__SEL(a__from(mark(z0)), cons(mark(x2), x3)), MARK(from(z0)))
   A__SEL(s(sel(z0, z1)), cons(x1, cons(x2, x3))) -> c3(A__SEL(a__sel(mark(z0), mark(z1)), cons(mark(x2), x3)), MARK(sel(z0, z1)))
   A__SEL(s(s(z0)), cons(x1, cons(x2, x3))) -> c3(A__SEL(s(mark(z0)), cons(mark(x2), x3)), MARK(s(z0)))
   A__SEL(s(cons(z0, z1)), cons(x1, cons(x2, x3))) -> c3(MARK(cons(z0, z1)))
   A__SEL(s(0), cons(x1, cons(x2, x3))) -> c3(A__SEL(0, cons(mark(x2), x3)))
   A__SEL(s(from(from(z0))), cons(x1, x2)) -> c3(A__SEL(a__from(a__from(mark(z0))), mark(x2)), MARK(from(from(z0))))
   A__SEL(s(from(sel(z0, z1))), cons(x1, x2)) -> c3(A__SEL(a__from(a__sel(mark(z0), mark(z1))), mark(x2)), MARK(from(sel(z0, z1))))
   A__SEL(s(from(cons(z0, z1))), cons(x1, x2)) -> c3(A__SEL(a__from(cons(mark(z0), z1)), mark(x2)), MARK(from(cons(z0, z1))))
   A__SEL(s(from(s(z0))), cons(x1, x2)) -> c3(A__SEL(a__from(s(mark(z0))), mark(x2)), MARK(from(s(z0))))
   A__SEL(s(from(0)), cons(x1, x2)) -> c3(A__SEL(a__from(0), mark(x2)), MARK(from(0)))
   A__SEL(s(from(x0)), cons(x1, x2)) -> c3(MARK(from(x0)))
   A__SEL(s(from(x0)), cons(x1, s(z0))) -> c3(MARK(from(x0)))
   A__SEL(s(from(x0)), cons(x1, 0)) -> c3(MARK(from(x0)))
   A__SEL(s(sel(x0, from(z0))), cons(x2, x3)) -> c3(A__SEL(a__sel(mark(x0), a__from(mark(z0))), mark(x3)), MARK(sel(x0, from(z0))))
   A__SEL(s(sel(x0, sel(z0, z1))), cons(x2, x3)) -> c3(A__SEL(a__sel(mark(x0), a__sel(mark(z0), mark(z1))), mark(x3)), MARK(sel(x0, sel(z0, z1))))
   A__SEL(s(sel(x0, cons(z0, z1))), cons(x2, x3)) -> c3(A__SEL(a__sel(mark(x0), cons(mark(z0), z1)), mark(x3)), MARK(sel(x0, cons(z0, z1))))
   A__SEL(s(sel(x0, s(z0))), cons(x2, x3)) -> c3(A__SEL(a__sel(mark(x0), s(mark(z0))), mark(x3)), MARK(sel(x0, s(z0))))
   A__SEL(s(sel(x0, 0)), cons(x2, x3)) -> c3(A__SEL(a__sel(mark(x0), 0), mark(x3)), MARK(sel(x0, 0)))
   A__SEL(s(sel(from(z0), x1)), cons(x2, x3)) -> c3(A__SEL(a__sel(a__from(mark(z0)), mark(x1)), mark(x3)), MARK(sel(from(z0), x1)))
   A__SEL(s(sel(sel(z0, z1), x1)), cons(x2, x3)) -> c3(A__SEL(a__sel(a__sel(mark(z0), mark(z1)), mark(x1)), mark(x3)), MARK(sel(sel(z0, z1), x1)))
   A__SEL(s(sel(cons(z0, z1), x1)), cons(x2, x3)) -> c3(A__SEL(a__sel(cons(mark(z0), z1), mark(x1)), mark(x3)), MARK(sel(cons(z0, z1), x1)))
   A__SEL(s(sel(s(z0), x1)), cons(x2, x3)) -> c3(A__SEL(a__sel(s(mark(z0)), mark(x1)), mark(x3)), MARK(sel(s(z0), x1)))
   A__SEL(s(sel(0, x1)), cons(x2, x3)) -> c3(A__SEL(a__sel(0, mark(x1)), mark(x3)), MARK(sel(0, x1)))
   A__SEL(s(sel(x0, x1)), cons(x2, s(z0))) -> c3(MARK(sel(x0, x1)))
   A__SEL(s(sel(x0, x1)), cons(x2, 0)) -> c3(MARK(sel(x0, x1)))
   A__SEL(s(sel(x0, x1)), cons(x2, x3)) -> c3(MARK(sel(x0, x1)))
   A__SEL(s(s(from(z0))), cons(x1, x2)) -> c3(A__SEL(s(a__from(mark(z0))), mark(x2)), MARK(s(from(z0))))
   A__SEL(s(s(sel(z0, z1))), cons(x1, x2)) -> c3(A__SEL(s(a__sel(mark(z0), mark(z1))), mark(x2)), MARK(s(sel(z0, z1))))
   A__SEL(s(s(cons(z0, z1))), cons(x1, x2)) -> c3(A__SEL(s(cons(mark(z0), z1)), mark(x2)), MARK(s(cons(z0, z1))))
   A__SEL(s(s(s(z0))), cons(x1, x2)) -> c3(A__SEL(s(s(mark(z0))), mark(x2)), MARK(s(s(z0))))
   A__SEL(s(s(0)), cons(x1, x2)) -> c3(A__SEL(s(0), mark(x2)), MARK(s(0)))
   A__SEL(s(s(x0)), cons(x1, x2)) -> c3(MARK(s(x0)))
   A__SEL(s(s(x0)), cons(x1, s(z0))) -> c3(MARK(s(x0)))
   A__SEL(s(s(x0)), cons(x1, 0)) -> c3(MARK(s(x0)))
   A__SEL(s(x0), cons(x1, from(x2))) -> c4(A__SEL(mark(x0), cons(mark(mark(x2)), from(s(mark(x2))))), MARK(from(x2)))
   A__SEL(s(x0), cons(x1, from(from(z0)))) -> c4(A__SEL(mark(x0), a__from(a__from(mark(z0)))), MARK(from(from(z0))))
   A__SEL(s(x0), cons(x1, from(sel(z0, z1)))) -> c4(A__SEL(mark(x0), a__from(a__sel(mark(z0), mark(z1)))), MARK(from(sel(z0, z1))))
   A__SEL(s(x0), cons(x1, from(cons(z0, z1)))) -> c4(A__SEL(mark(x0), a__from(cons(mark(z0), z1))), MARK(from(cons(z0, z1))))
   A__SEL(s(x0), cons(x1, from(s(z0)))) -> c4(A__SEL(mark(x0), a__from(s(mark(z0)))), MARK(from(s(z0))))
   A__SEL(s(x0), cons(x1, from(0))) -> c4(A__SEL(mark(x0), a__from(0)), MARK(from(0)))
   A__SEL(s(from(z0)), cons(x1, from(x2))) -> c4(A__SEL(a__from(mark(z0)), a__from(mark(x2))), MARK(from(x2)))
   A__SEL(s(sel(z0, z1)), cons(x1, from(x2))) -> c4(A__SEL(a__sel(mark(z0), mark(z1)), a__from(mark(x2))), MARK(from(x2)))
   A__SEL(s(s(z0)), cons(x1, from(x2))) -> c4(A__SEL(s(mark(z0)), a__from(mark(x2))), MARK(from(x2)))
   A__SEL(s(0), cons(x1, from(x2))) -> c4(A__SEL(0, a__from(mark(x2))), MARK(from(x2)))
   A__SEL(s(x0), cons(x1, from(x2))) -> c4(MARK(from(x2)))
   A__SEL(s(cons(z0, z1)), cons(x1, from(x2))) -> c4(MARK(from(x2)))
   A__SEL(s(x0), cons(x1, sel(x2, from(z0)))) -> c4(A__SEL(mark(x0), a__sel(mark(x2), a__from(mark(z0)))), MARK(sel(x2, from(z0))))
   A__SEL(s(x0), cons(x1, sel(x2, sel(z0, z1)))) -> c4(A__SEL(mark(x0), a__sel(mark(x2), a__sel(mark(z0), mark(z1)))), MARK(sel(x2, sel(z0, z1))))
   A__SEL(s(x0), cons(x1, sel(x2, cons(z0, z1)))) -> c4(A__SEL(mark(x0), a__sel(mark(x2), cons(mark(z0), z1))), MARK(sel(x2, cons(z0, z1))))
   A__SEL(s(x0), cons(x1, sel(x2, s(z0)))) -> c4(A__SEL(mark(x0), a__sel(mark(x2), s(mark(z0)))), MARK(sel(x2, s(z0))))
   A__SEL(s(x0), cons(x1, sel(x2, 0))) -> c4(A__SEL(mark(x0), a__sel(mark(x2), 0)), MARK(sel(x2, 0)))
   A__SEL(s(x0), cons(x1, sel(from(z0), x3))) -> c4(A__SEL(mark(x0), a__sel(a__from(mark(z0)), mark(x3))), MARK(sel(from(z0), x3)))
   A__SEL(s(x0), cons(x1, sel(sel(z0, z1), x3))) -> c4(A__SEL(mark(x0), a__sel(a__sel(mark(z0), mark(z1)), mark(x3))), MARK(sel(sel(z0, z1), x3)))
   A__SEL(s(x0), cons(x1, sel(cons(z0, z1), x3))) -> c4(A__SEL(mark(x0), a__sel(cons(mark(z0), z1), mark(x3))), MARK(sel(cons(z0, z1), x3)))
   A__SEL(s(x0), cons(x1, sel(s(z0), x3))) -> c4(A__SEL(mark(x0), a__sel(s(mark(z0)), mark(x3))), MARK(sel(s(z0), x3)))
   A__SEL(s(x0), cons(x1, sel(0, x3))) -> c4(A__SEL(mark(x0), a__sel(0, mark(x3))), MARK(sel(0, x3)))
   A__SEL(s(from(z0)), cons(x1, sel(x2, x3))) -> c4(A__SEL(a__from(mark(z0)), a__sel(mark(x2), mark(x3))), MARK(sel(x2, x3)))
   A__SEL(s(sel(z0, z1)), cons(x1, sel(x2, x3))) -> c4(A__SEL(a__sel(mark(z0), mark(z1)), a__sel(mark(x2), mark(x3))), MARK(sel(x2, x3)))
   A__SEL(s(s(z0)), cons(x1, sel(x2, x3))) -> c4(A__SEL(s(mark(z0)), a__sel(mark(x2), mark(x3))), MARK(sel(x2, x3)))
   A__SEL(s(0), cons(x1, sel(x2, x3))) -> c4(A__SEL(0, a__sel(mark(x2), mark(x3))), MARK(sel(x2, x3)))
   A__SEL(s(x0), cons(x1, sel(x2, x3))) -> c4(MARK(sel(x2, x3)))
   A__SEL(s(cons(z0, z1)), cons(x1, sel(x2, x3))) -> c4(MARK(sel(x2, x3)))
   A__SEL(s(x0), cons(x1, cons(from(z0), x3))) -> c4(A__SEL(mark(x0), cons(a__from(mark(z0)), x3)), MARK(cons(from(z0), x3)))
   A__SEL(s(x0), cons(x1, cons(sel(z0, z1), x3))) -> c4(A__SEL(mark(x0), cons(a__sel(mark(z0), mark(z1)), x3)), MARK(cons(sel(z0, z1), x3)))
   A__SEL(s(x0), cons(x1, cons(cons(z0, z1), x3))) -> c4(A__SEL(mark(x0), cons(cons(mark(z0), z1), x3)), MARK(cons(cons(z0, z1), x3)))
   A__SEL(s(x0), cons(x1, cons(s(z0), x3))) -> c4(A__SEL(mark(x0), cons(s(mark(z0)), x3)), MARK(cons(s(z0), x3)))
   A__SEL(s(x0), cons(x1, cons(0, x3))) -> c4(A__SEL(mark(x0), cons(0, x3)), MARK(cons(0, x3)))
   A__SEL(s(from(z0)), cons(x1, cons(x2, x3))) -> c4(A__SEL(a__from(mark(z0)), cons(mark(x2), x3)), MARK(cons(x2, x3)))
   A__SEL(s(sel(z0, z1)), cons(x1, cons(x2, x3))) -> c4(A__SEL(a__sel(mark(z0), mark(z1)), cons(mark(x2), x3)), MARK(cons(x2, x3)))
   A__SEL(s(s(z0)), cons(x1, cons(x2, x3))) -> c4(A__SEL(s(mark(z0)), cons(mark(x2), x3)), MARK(cons(x2, x3)))
   A__SEL(s(0), cons(x1, cons(x2, x3))) -> c4(A__SEL(0, cons(mark(x2), x3)), MARK(cons(x2, x3)))
   A__SEL(s(x0), cons(x1, cons(x2, x3))) -> c4(MARK(cons(x2, x3)))
   A__SEL(s(cons(z0, z1)), cons(x1, cons(x2, x3))) -> c4(MARK(cons(x2, x3)))
   A__SEL(s(from(from(z0))), cons(x1, x2)) -> c4(A__SEL(a__from(a__from(mark(z0))), mark(x2)), MARK(x2))
   A__SEL(s(from(sel(z0, z1))), cons(x1, x2)) -> c4(A__SEL(a__from(a__sel(mark(z0), mark(z1))), mark(x2)), MARK(x2))
   A__SEL(s(from(cons(z0, z1))), cons(x1, x2)) -> c4(A__SEL(a__from(cons(mark(z0), z1)), mark(x2)), MARK(x2))
   A__SEL(s(from(s(z0))), cons(x1, x2)) -> c4(A__SEL(a__from(s(mark(z0))), mark(x2)), MARK(x2))
   A__SEL(s(from(0)), cons(x1, x2)) -> c4(A__SEL(a__from(0), mark(x2)), MARK(x2))
   A__SEL(s(from(x0)), cons(x1, s(z0))) -> c4(MARK(s(z0)))
   A__SEL(s(from(x0)), cons(x1, x2)) -> c4(MARK(x2))
   A__SEL(s(sel(x0, from(z0))), cons(x2, x3)) -> c4(A__SEL(a__sel(mark(x0), a__from(mark(z0))), mark(x3)), MARK(x3))
   A__SEL(s(sel(x0, sel(z0, z1))), cons(x2, x3)) -> c4(A__SEL(a__sel(mark(x0), a__sel(mark(z0), mark(z1))), mark(x3)), MARK(x3))
   A__SEL(s(sel(x0, cons(z0, z1))), cons(x2, x3)) -> c4(A__SEL(a__sel(mark(x0), cons(mark(z0), z1)), mark(x3)), MARK(x3))
   A__SEL(s(sel(x0, s(z0))), cons(x2, x3)) -> c4(A__SEL(a__sel(mark(x0), s(mark(z0))), mark(x3)), MARK(x3))
   A__SEL(s(sel(x0, 0)), cons(x2, x3)) -> c4(A__SEL(a__sel(mark(x0), 0), mark(x3)), MARK(x3))
   A__SEL(s(sel(from(z0), x1)), cons(x2, x3)) -> c4(A__SEL(a__sel(a__from(mark(z0)), mark(x1)), mark(x3)), MARK(x3))
   A__SEL(s(sel(sel(z0, z1), x1)), cons(x2, x3)) -> c4(A__SEL(a__sel(a__sel(mark(z0), mark(z1)), mark(x1)), mark(x3)), MARK(x3))
   A__SEL(s(sel(cons(z0, z1), x1)), cons(x2, x3)) -> c4(A__SEL(a__sel(cons(mark(z0), z1), mark(x1)), mark(x3)), MARK(x3))
   A__SEL(s(sel(s(z0), x1)), cons(x2, x3)) -> c4(A__SEL(a__sel(s(mark(z0)), mark(x1)), mark(x3)), MARK(x3))
   A__SEL(s(sel(0, x1)), cons(x2, x3)) -> c4(A__SEL(a__sel(0, mark(x1)), mark(x3)), MARK(x3))
   A__SEL(s(sel(x0, x1)), cons(x2, s(z0))) -> c4(MARK(s(z0)))
   A__SEL(s(sel(x0, x1)), cons(x2, x3)) -> c4(MARK(x3))
   A__SEL(s(s(from(z0))), cons(x1, x2)) -> c4(A__SEL(s(a__from(mark(z0))), mark(x2)), MARK(x2))
   A__SEL(s(s(sel(z0, z1))), cons(x1, x2)) -> c4(A__SEL(s(a__sel(mark(z0), mark(z1))), mark(x2)), MARK(x2))
   A__SEL(s(s(cons(z0, z1))), cons(x1, x2)) -> c4(A__SEL(s(cons(mark(z0), z1)), mark(x2)), MARK(x2))
   A__SEL(s(s(s(z0))), cons(x1, x2)) -> c4(A__SEL(s(s(mark(z0))), mark(x2)), MARK(x2))
   A__SEL(s(s(0)), cons(x1, x2)) -> c4(A__SEL(s(0), mark(x2)), MARK(x2))
   A__SEL(s(s(x0)), cons(x1, s(z0))) -> c4(MARK(s(z0)))
   A__SEL(s(0), cons(x0, s(z0))) -> c4(MARK(s(z0)))
   MARK(sel(x0, from(x1))) -> c7(A__SEL(mark(x0), cons(mark(mark(x1)), from(s(mark(x1))))), MARK(x0))
   MARK(sel(x0, from(from(z0)))) -> c7(A__SEL(mark(x0), a__from(a__from(mark(z0)))), MARK(x0))
   MARK(sel(x0, from(sel(z0, z1)))) -> c7(A__SEL(mark(x0), a__from(a__sel(mark(z0), mark(z1)))), MARK(x0))
   MARK(sel(x0, from(cons(z0, z1)))) -> c7(A__SEL(mark(x0), a__from(cons(mark(z0), z1))), MARK(x0))
   MARK(sel(x0, from(s(z0)))) -> c7(A__SEL(mark(x0), a__from(s(mark(z0)))), MARK(x0))
   MARK(sel(x0, from(0))) -> c7(A__SEL(mark(x0), a__from(0)), MARK(x0))
   MARK(sel(from(z0), from(x1))) -> c7(A__SEL(a__from(mark(z0)), a__from(mark(x1))), MARK(from(z0)))
   MARK(sel(sel(z0, z1), from(x1))) -> c7(A__SEL(a__sel(mark(z0), mark(z1)), a__from(mark(x1))), MARK(sel(z0, z1)))
   MARK(sel(s(z0), from(x1))) -> c7(A__SEL(s(mark(z0)), a__from(mark(x1))), MARK(s(z0)))
   MARK(sel(x0, from(x1))) -> c7(MARK(x0))
   MARK(sel(cons(z0, z1), from(x1))) -> c7(MARK(cons(z0, z1)))
   MARK(sel(0, from(x1))) -> c7(A__SEL(0, a__from(mark(x1))))
   MARK(sel(x0, sel(x1, from(z0)))) -> c7(A__SEL(mark(x0), a__sel(mark(x1), a__from(mark(z0)))), MARK(x0))
   MARK(sel(x0, sel(x1, sel(z0, z1)))) -> c7(A__SEL(mark(x0), a__sel(mark(x1), a__sel(mark(z0), mark(z1)))), MARK(x0))
   MARK(sel(x0, sel(x1, cons(z0, z1)))) -> c7(A__SEL(mark(x0), a__sel(mark(x1), cons(mark(z0), z1))), MARK(x0))
   MARK(sel(x0, sel(x1, s(z0)))) -> c7(A__SEL(mark(x0), a__sel(mark(x1), s(mark(z0)))), MARK(x0))
   MARK(sel(x0, sel(x1, 0))) -> c7(A__SEL(mark(x0), a__sel(mark(x1), 0)), MARK(x0))
   MARK(sel(x0, sel(from(z0), x2))) -> c7(A__SEL(mark(x0), a__sel(a__from(mark(z0)), mark(x2))), MARK(x0))
   MARK(sel(x0, sel(sel(z0, z1), x2))) -> c7(A__SEL(mark(x0), a__sel(a__sel(mark(z0), mark(z1)), mark(x2))), MARK(x0))
   MARK(sel(x0, sel(cons(z0, z1), x2))) -> c7(A__SEL(mark(x0), a__sel(cons(mark(z0), z1), mark(x2))), MARK(x0))
   MARK(sel(x0, sel(s(z0), x2))) -> c7(A__SEL(mark(x0), a__sel(s(mark(z0)), mark(x2))), MARK(x0))
   MARK(sel(x0, sel(0, x2))) -> c7(A__SEL(mark(x0), a__sel(0, mark(x2))), MARK(x0))
   MARK(sel(from(z0), sel(x1, x2))) -> c7(A__SEL(a__from(mark(z0)), a__sel(mark(x1), mark(x2))), MARK(from(z0)))
   MARK(sel(sel(z0, z1), sel(x1, x2))) -> c7(A__SEL(a__sel(mark(z0), mark(z1)), a__sel(mark(x1), mark(x2))), MARK(sel(z0, z1)))
   MARK(sel(s(z0), sel(x1, x2))) -> c7(A__SEL(s(mark(z0)), a__sel(mark(x1), mark(x2))), MARK(s(z0)))
   MARK(sel(x0, sel(x1, x2))) -> c7(MARK(x0))
   MARK(sel(cons(z0, z1), sel(x1, x2))) -> c7(MARK(cons(z0, z1)))
   MARK(sel(0, sel(x1, x2))) -> c7(A__SEL(0, a__sel(mark(x1), mark(x2))))
   MARK(sel(x0, cons(from(z0), x2))) -> c7(A__SEL(mark(x0), cons(a__from(mark(z0)), x2)), MARK(x0))
   MARK(sel(x0, cons(sel(z0, z1), x2))) -> c7(A__SEL(mark(x0), cons(a__sel(mark(z0), mark(z1)), x2)), MARK(x0))
   MARK(sel(x0, cons(cons(z0, z1), x2))) -> c7(A__SEL(mark(x0), cons(cons(mark(z0), z1), x2)), MARK(x0))
   MARK(sel(x0, cons(s(z0), x2))) -> c7(A__SEL(mark(x0), cons(s(mark(z0)), x2)), MARK(x0))
   MARK(sel(x0, cons(0, x2))) -> c7(A__SEL(mark(x0), cons(0, x2)), MARK(x0))
   MARK(sel(from(z0), cons(x1, x2))) -> c7(A__SEL(a__from(mark(z0)), cons(mark(x1), x2)), MARK(from(z0)))
   MARK(sel(sel(z0, z1), cons(x1, x2))) -> c7(A__SEL(a__sel(mark(z0), mark(z1)), cons(mark(x1), x2)), MARK(sel(z0, z1)))
   MARK(sel(s(z0), cons(x1, x2))) -> c7(A__SEL(s(mark(z0)), cons(mark(x1), x2)), MARK(s(z0)))
   MARK(sel(cons(z0, z1), cons(x1, x2))) -> c7(MARK(cons(z0, z1)))
   MARK(sel(0, cons(x1, x2))) -> c7(A__SEL(0, cons(mark(x1), x2)))
   MARK(sel(from(from(z0)), x1)) -> c7(A__SEL(a__from(a__from(mark(z0))), mark(x1)), MARK(from(from(z0))))
   MARK(sel(from(sel(z0, z1)), x1)) -> c7(A__SEL(a__from(a__sel(mark(z0), mark(z1))), mark(x1)), MARK(from(sel(z0, z1))))
   MARK(sel(from(cons(z0, z1)), x1)) -> c7(A__SEL(a__from(cons(mark(z0), z1)), mark(x1)), MARK(from(cons(z0, z1))))
   MARK(sel(from(s(z0)), x1)) -> c7(A__SEL(a__from(s(mark(z0))), mark(x1)), MARK(from(s(z0))))
   MARK(sel(from(0), x1)) -> c7(A__SEL(a__from(0), mark(x1)), MARK(from(0)))
   MARK(sel(from(x0), x1)) -> c7(MARK(from(x0)))
   MARK(sel(from(x0), s(z0))) -> c7(MARK(from(x0)))
   MARK(sel(from(x0), 0)) -> c7(MARK(from(x0)))
   MARK(sel(sel(x0, from(z0)), x2)) -> c7(A__SEL(a__sel(mark(x0), a__from(mark(z0))), mark(x2)), MARK(sel(x0, from(z0))))
   MARK(sel(sel(x0, sel(z0, z1)), x2)) -> c7(A__SEL(a__sel(mark(x0), a__sel(mark(z0), mark(z1))), mark(x2)), MARK(sel(x0, sel(z0, z1))))
   MARK(sel(sel(x0, cons(z0, z1)), x2)) -> c7(A__SEL(a__sel(mark(x0), cons(mark(z0), z1)), mark(x2)), MARK(sel(x0, cons(z0, z1))))
   MARK(sel(sel(x0, s(z0)), x2)) -> c7(A__SEL(a__sel(mark(x0), s(mark(z0))), mark(x2)), MARK(sel(x0, s(z0))))
   MARK(sel(sel(x0, 0), x2)) -> c7(A__SEL(a__sel(mark(x0), 0), mark(x2)), MARK(sel(x0, 0)))
   MARK(sel(sel(from(z0), x1), x2)) -> c7(A__SEL(a__sel(a__from(mark(z0)), mark(x1)), mark(x2)), MARK(sel(from(z0), x1)))
   MARK(sel(sel(sel(z0, z1), x1), x2)) -> c7(A__SEL(a__sel(a__sel(mark(z0), mark(z1)), mark(x1)), mark(x2)), MARK(sel(sel(z0, z1), x1)))
   MARK(sel(sel(cons(z0, z1), x1), x2)) -> c7(A__SEL(a__sel(cons(mark(z0), z1), mark(x1)), mark(x2)), MARK(sel(cons(z0, z1), x1)))
   MARK(sel(sel(s(z0), x1), x2)) -> c7(A__SEL(a__sel(s(mark(z0)), mark(x1)), mark(x2)), MARK(sel(s(z0), x1)))
   MARK(sel(sel(0, x1), x2)) -> c7(A__SEL(a__sel(0, mark(x1)), mark(x2)), MARK(sel(0, x1)))
   MARK(sel(sel(x0, x1), s(z0))) -> c7(MARK(sel(x0, x1)))
   MARK(sel(sel(x0, x1), 0)) -> c7(MARK(sel(x0, x1)))
   MARK(sel(sel(x0, x1), x2)) -> c7(MARK(sel(x0, x1)))
   MARK(sel(s(from(z0)), x1)) -> c7(A__SEL(s(a__from(mark(z0))), mark(x1)), MARK(s(from(z0))))
   MARK(sel(s(sel(z0, z1)), x1)) -> c7(A__SEL(s(a__sel(mark(z0), mark(z1))), mark(x1)), MARK(s(sel(z0, z1))))
   MARK(sel(s(cons(z0, z1)), x1)) -> c7(A__SEL(s(cons(mark(z0), z1)), mark(x1)), MARK(s(cons(z0, z1))))
   MARK(sel(s(s(z0)), x1)) -> c7(A__SEL(s(s(mark(z0))), mark(x1)), MARK(s(s(z0))))
   MARK(sel(s(0), x1)) -> c7(A__SEL(s(0), mark(x1)), MARK(s(0)))
   MARK(sel(s(x0), x1)) -> c7(MARK(s(x0)))
   MARK(sel(s(x0), s(z0))) -> c7(MARK(s(x0)))
   MARK(sel(s(x0), 0)) -> c7(MARK(s(x0)))
   MARK(sel(x0, from(x1))) -> c8(A__SEL(mark(x0), cons(mark(mark(x1)), from(s(mark(x1))))), MARK(from(x1)))
   MARK(sel(x0, from(from(z0)))) -> c8(A__SEL(mark(x0), a__from(a__from(mark(z0)))), MARK(from(from(z0))))
   MARK(sel(x0, from(sel(z0, z1)))) -> c8(A__SEL(mark(x0), a__from(a__sel(mark(z0), mark(z1)))), MARK(from(sel(z0, z1))))
   MARK(sel(x0, from(cons(z0, z1)))) -> c8(A__SEL(mark(x0), a__from(cons(mark(z0), z1))), MARK(from(cons(z0, z1))))
   MARK(sel(x0, from(s(z0)))) -> c8(A__SEL(mark(x0), a__from(s(mark(z0)))), MARK(from(s(z0))))
   MARK(sel(x0, from(0))) -> c8(A__SEL(mark(x0), a__from(0)), MARK(from(0)))
   MARK(sel(from(z0), from(x1))) -> c8(A__SEL(a__from(mark(z0)), a__from(mark(x1))), MARK(from(x1)))
   MARK(sel(sel(z0, z1), from(x1))) -> c8(A__SEL(a__sel(mark(z0), mark(z1)), a__from(mark(x1))), MARK(from(x1)))
   MARK(sel(s(z0), from(x1))) -> c8(A__SEL(s(mark(z0)), a__from(mark(x1))), MARK(from(x1)))
   MARK(sel(0, from(x1))) -> c8(A__SEL(0, a__from(mark(x1))), MARK(from(x1)))
   MARK(sel(x0, from(x1))) -> c8(MARK(from(x1)))
   MARK(sel(cons(z0, z1), from(x1))) -> c8(MARK(from(x1)))
   MARK(sel(x0, sel(x1, from(z0)))) -> c8(A__SEL(mark(x0), a__sel(mark(x1), a__from(mark(z0)))), MARK(sel(x1, from(z0))))
   MARK(sel(x0, sel(x1, sel(z0, z1)))) -> c8(A__SEL(mark(x0), a__sel(mark(x1), a__sel(mark(z0), mark(z1)))), MARK(sel(x1, sel(z0, z1))))
   MARK(sel(x0, sel(x1, cons(z0, z1)))) -> c8(A__SEL(mark(x0), a__sel(mark(x1), cons(mark(z0), z1))), MARK(sel(x1, cons(z0, z1))))
   MARK(sel(x0, sel(x1, s(z0)))) -> c8(A__SEL(mark(x0), a__sel(mark(x1), s(mark(z0)))), MARK(sel(x1, s(z0))))
   MARK(sel(x0, sel(x1, 0))) -> c8(A__SEL(mark(x0), a__sel(mark(x1), 0)), MARK(sel(x1, 0)))
   MARK(sel(x0, sel(from(z0), x2))) -> c8(A__SEL(mark(x0), a__sel(a__from(mark(z0)), mark(x2))), MARK(sel(from(z0), x2)))
   MARK(sel(x0, sel(sel(z0, z1), x2))) -> c8(A__SEL(mark(x0), a__sel(a__sel(mark(z0), mark(z1)), mark(x2))), MARK(sel(sel(z0, z1), x2)))
   MARK(sel(x0, sel(cons(z0, z1), x2))) -> c8(A__SEL(mark(x0), a__sel(cons(mark(z0), z1), mark(x2))), MARK(sel(cons(z0, z1), x2)))
   MARK(sel(x0, sel(s(z0), x2))) -> c8(A__SEL(mark(x0), a__sel(s(mark(z0)), mark(x2))), MARK(sel(s(z0), x2)))
   MARK(sel(x0, sel(0, x2))) -> c8(A__SEL(mark(x0), a__sel(0, mark(x2))), MARK(sel(0, x2)))
   MARK(sel(from(z0), sel(x1, x2))) -> c8(A__SEL(a__from(mark(z0)), a__sel(mark(x1), mark(x2))), MARK(sel(x1, x2)))
   MARK(sel(sel(z0, z1), sel(x1, x2))) -> c8(A__SEL(a__sel(mark(z0), mark(z1)), a__sel(mark(x1), mark(x2))), MARK(sel(x1, x2)))
   MARK(sel(s(z0), sel(x1, x2))) -> c8(A__SEL(s(mark(z0)), a__sel(mark(x1), mark(x2))), MARK(sel(x1, x2)))
   MARK(sel(0, sel(x1, x2))) -> c8(A__SEL(0, a__sel(mark(x1), mark(x2))), MARK(sel(x1, x2)))
   MARK(sel(x0, sel(x1, x2))) -> c8(MARK(sel(x1, x2)))
   MARK(sel(cons(z0, z1), sel(x1, x2))) -> c8(MARK(sel(x1, x2)))
   MARK(sel(x0, cons(from(z0), x2))) -> c8(A__SEL(mark(x0), cons(a__from(mark(z0)), x2)), MARK(cons(from(z0), x2)))
   MARK(sel(x0, cons(sel(z0, z1), x2))) -> c8(A__SEL(mark(x0), cons(a__sel(mark(z0), mark(z1)), x2)), MARK(cons(sel(z0, z1), x2)))
   MARK(sel(x0, cons(cons(z0, z1), x2))) -> c8(A__SEL(mark(x0), cons(cons(mark(z0), z1), x2)), MARK(cons(cons(z0, z1), x2)))
   MARK(sel(x0, cons(s(z0), x2))) -> c8(A__SEL(mark(x0), cons(s(mark(z0)), x2)), MARK(cons(s(z0), x2)))
   MARK(sel(x0, cons(0, x2))) -> c8(A__SEL(mark(x0), cons(0, x2)), MARK(cons(0, x2)))
   MARK(sel(from(z0), cons(x1, x2))) -> c8(A__SEL(a__from(mark(z0)), cons(mark(x1), x2)), MARK(cons(x1, x2)))
   MARK(sel(sel(z0, z1), cons(x1, x2))) -> c8(A__SEL(a__sel(mark(z0), mark(z1)), cons(mark(x1), x2)), MARK(cons(x1, x2)))
   MARK(sel(s(z0), cons(x1, x2))) -> c8(A__SEL(s(mark(z0)), cons(mark(x1), x2)), MARK(cons(x1, x2)))
   MARK(sel(0, cons(x1, x2))) -> c8(A__SEL(0, cons(mark(x1), x2)), MARK(cons(x1, x2)))
   MARK(sel(x0, cons(x1, x2))) -> c8(MARK(cons(x1, x2)))
   MARK(sel(cons(z0, z1), cons(x1, x2))) -> c8(MARK(cons(x1, x2)))
   MARK(sel(from(x0), s(z0))) -> c8(A__SEL(a__from(mark(x0)), s(mark(z0))), MARK(s(z0)))
   MARK(sel(from(x0), x1)) -> c8(A__SEL(cons(mark(mark(x0)), from(s(mark(x0)))), mark(x1)), MARK(x1))
   MARK(sel(from(x0), x1)) -> c8(A__SEL(from(mark(x0)), mark(x1)), MARK(x1))
   MARK(sel(from(from(z0)), x1)) -> c8(A__SEL(a__from(a__from(mark(z0))), mark(x1)), MARK(x1))
   MARK(sel(from(sel(z0, z1)), x1)) -> c8(A__SEL(a__from(a__sel(mark(z0), mark(z1))), mark(x1)), MARK(x1))
   MARK(sel(from(cons(z0, z1)), x1)) -> c8(A__SEL(a__from(cons(mark(z0), z1)), mark(x1)), MARK(x1))
   MARK(sel(from(s(z0)), x1)) -> c8(A__SEL(a__from(s(mark(z0))), mark(x1)), MARK(x1))
   MARK(sel(from(0), x1)) -> c8(A__SEL(a__from(0), mark(x1)), MARK(x1))
S tuples:
   A__FROM(z0) -> c(MARK(z0))
   A__SEL(0, cons(z0, z1)) -> c2(MARK(z0))
   MARK(from(z0)) -> c6(A__FROM(mark(z0)), MARK(z0))
   MARK(cons(z0, z1)) -> c9(MARK(z0))
   MARK(s(z0)) -> c10(MARK(z0))
   A__SEL(s(x0), cons(x1, s(z0))) -> c3(MARK(x0))
   A__SEL(s(x0), cons(x1, 0)) -> c3(MARK(x0))
   A__SEL(s(cons(z0, z1)), cons(x1, x2)) -> c3(MARK(cons(z0, z1)))
   A__SEL(s(x0), cons(x1, s(z0))) -> c4(MARK(s(z0)))
   A__SEL(s(cons(z0, z1)), cons(x1, x2)) -> c4(MARK(x2))
   MARK(sel(x0, s(z0))) -> c7(MARK(x0))
   MARK(sel(x0, 0)) -> c7(MARK(x0))
   MARK(sel(cons(z0, z1), x1)) -> c7(MARK(cons(z0, z1)))
   MARK(sel(sel(z0, z1), x1)) -> c8(A__SEL(a__sel(mark(z0), mark(z1)), mark(x1)), MARK(x1))
   MARK(sel(s(z0), x1)) -> c8(A__SEL(s(mark(z0)), mark(x1)), MARK(x1))
   MARK(sel(0, x1)) -> c8(A__SEL(0, mark(x1)), MARK(x1))
   MARK(sel(x0, s(z0))) -> c8(MARK(s(z0)))
   MARK(sel(cons(z0, z1), x1)) -> c8(MARK(x1))
   A__SEL(s(x0), cons(x1, from(x2))) -> c3(A__SEL(mark(x0), cons(mark(mark(x2)), from(s(mark(x2))))), MARK(x0))
   A__SEL(s(x0), cons(x1, from(from(z0)))) -> c3(A__SEL(mark(x0), a__from(a__from(mark(z0)))), MARK(x0))
   A__SEL(s(x0), cons(x1, from(sel(z0, z1)))) -> c3(A__SEL(mark(x0), a__from(a__sel(mark(z0), mark(z1)))), MARK(x0))
   A__SEL(s(x0), cons(x1, from(cons(z0, z1)))) -> c3(A__SEL(mark(x0), a__from(cons(mark(z0), z1))), MARK(x0))
   A__SEL(s(x0), cons(x1, from(s(z0)))) -> c3(A__SEL(mark(x0), a__from(s(mark(z0)))), MARK(x0))
   A__SEL(s(x0), cons(x1, from(0))) -> c3(A__SEL(mark(x0), a__from(0)), MARK(x0))
   A__SEL(s(from(z0)), cons(x1, from(x2))) -> c3(A__SEL(a__from(mark(z0)), a__from(mark(x2))), MARK(from(z0)))
   A__SEL(s(sel(z0, z1)), cons(x1, from(x2))) -> c3(A__SEL(a__sel(mark(z0), mark(z1)), a__from(mark(x2))), MARK(sel(z0, z1)))
   A__SEL(s(s(z0)), cons(x1, from(x2))) -> c3(A__SEL(s(mark(z0)), a__from(mark(x2))), MARK(s(z0)))
   A__SEL(s(x0), cons(x1, from(x2))) -> c3(MARK(x0))
   A__SEL(s(cons(z0, z1)), cons(x1, from(x2))) -> c3(MARK(cons(z0, z1)))
   A__SEL(s(0), cons(x1, from(x2))) -> c3(A__SEL(0, a__from(mark(x2))))
   A__SEL(s(x0), cons(x1, sel(x2, from(z0)))) -> c3(A__SEL(mark(x0), a__sel(mark(x2), a__from(mark(z0)))), MARK(x0))
   A__SEL(s(x0), cons(x1, sel(x2, sel(z0, z1)))) -> c3(A__SEL(mark(x0), a__sel(mark(x2), a__sel(mark(z0), mark(z1)))), MARK(x0))
   A__SEL(s(x0), cons(x1, sel(x2, cons(z0, z1)))) -> c3(A__SEL(mark(x0), a__sel(mark(x2), cons(mark(z0), z1))), MARK(x0))
   A__SEL(s(x0), cons(x1, sel(x2, s(z0)))) -> c3(A__SEL(mark(x0), a__sel(mark(x2), s(mark(z0)))), MARK(x0))
   A__SEL(s(x0), cons(x1, sel(x2, 0))) -> c3(A__SEL(mark(x0), a__sel(mark(x2), 0)), MARK(x0))
   A__SEL(s(x0), cons(x1, sel(from(z0), x3))) -> c3(A__SEL(mark(x0), a__sel(a__from(mark(z0)), mark(x3))), MARK(x0))
   A__SEL(s(x0), cons(x1, sel(sel(z0, z1), x3))) -> c3(A__SEL(mark(x0), a__sel(a__sel(mark(z0), mark(z1)), mark(x3))), MARK(x0))
   A__SEL(s(x0), cons(x1, sel(cons(z0, z1), x3))) -> c3(A__SEL(mark(x0), a__sel(cons(mark(z0), z1), mark(x3))), MARK(x0))
   A__SEL(s(x0), cons(x1, sel(s(z0), x3))) -> c3(A__SEL(mark(x0), a__sel(s(mark(z0)), mark(x3))), MARK(x0))
   A__SEL(s(x0), cons(x1, sel(0, x3))) -> c3(A__SEL(mark(x0), a__sel(0, mark(x3))), MARK(x0))
   A__SEL(s(from(z0)), cons(x1, sel(x2, x3))) -> c3(A__SEL(a__from(mark(z0)), a__sel(mark(x2), mark(x3))), MARK(from(z0)))
   A__SEL(s(sel(z0, z1)), cons(x1, sel(x2, x3))) -> c3(A__SEL(a__sel(mark(z0), mark(z1)), a__sel(mark(x2), mark(x3))), MARK(sel(z0, z1)))
   A__SEL(s(s(z0)), cons(x1, sel(x2, x3))) -> c3(A__SEL(s(mark(z0)), a__sel(mark(x2), mark(x3))), MARK(s(z0)))
   A__SEL(s(x0), cons(x1, sel(x2, x3))) -> c3(MARK(x0))
   A__SEL(s(cons(z0, z1)), cons(x1, sel(x2, x3))) -> c3(MARK(cons(z0, z1)))
   A__SEL(s(0), cons(x1, sel(x2, x3))) -> c3(A__SEL(0, a__sel(mark(x2), mark(x3))))
   A__SEL(s(x0), cons(x1, cons(from(z0), x3))) -> c3(A__SEL(mark(x0), cons(a__from(mark(z0)), x3)), MARK(x0))
   A__SEL(s(x0), cons(x1, cons(sel(z0, z1), x3))) -> c3(A__SEL(mark(x0), cons(a__sel(mark(z0), mark(z1)), x3)), MARK(x0))
   A__SEL(s(x0), cons(x1, cons(cons(z0, z1), x3))) -> c3(A__SEL(mark(x0), cons(cons(mark(z0), z1), x3)), MARK(x0))
   A__SEL(s(x0), cons(x1, cons(s(z0), x3))) -> c3(A__SEL(mark(x0), cons(s(mark(z0)), x3)), MARK(x0))
   A__SEL(s(x0), cons(x1, cons(0, x3))) -> c3(A__SEL(mark(x0), cons(0, x3)), MARK(x0))
   A__SEL(s(from(z0)), cons(x1, cons(x2, x3))) -> c3(A__SEL(a__from(mark(z0)), cons(mark(x2), x3)), MARK(from(z0)))
   A__SEL(s(sel(z0, z1)), cons(x1, cons(x2, x3))) -> c3(A__SEL(a__sel(mark(z0), mark(z1)), cons(mark(x2), x3)), MARK(sel(z0, z1)))
   A__SEL(s(s(z0)), cons(x1, cons(x2, x3))) -> c3(A__SEL(s(mark(z0)), cons(mark(x2), x3)), MARK(s(z0)))
   A__SEL(s(cons(z0, z1)), cons(x1, cons(x2, x3))) -> c3(MARK(cons(z0, z1)))
   A__SEL(s(0), cons(x1, cons(x2, x3))) -> c3(A__SEL(0, cons(mark(x2), x3)))
   A__SEL(s(from(from(z0))), cons(x1, x2)) -> c3(A__SEL(a__from(a__from(mark(z0))), mark(x2)), MARK(from(from(z0))))
   A__SEL(s(from(sel(z0, z1))), cons(x1, x2)) -> c3(A__SEL(a__from(a__sel(mark(z0), mark(z1))), mark(x2)), MARK(from(sel(z0, z1))))
   A__SEL(s(from(cons(z0, z1))), cons(x1, x2)) -> c3(A__SEL(a__from(cons(mark(z0), z1)), mark(x2)), MARK(from(cons(z0, z1))))
   A__SEL(s(from(s(z0))), cons(x1, x2)) -> c3(A__SEL(a__from(s(mark(z0))), mark(x2)), MARK(from(s(z0))))
   A__SEL(s(from(0)), cons(x1, x2)) -> c3(A__SEL(a__from(0), mark(x2)), MARK(from(0)))
   A__SEL(s(from(x0)), cons(x1, x2)) -> c3(MARK(from(x0)))
   A__SEL(s(from(x0)), cons(x1, s(z0))) -> c3(MARK(from(x0)))
   A__SEL(s(from(x0)), cons(x1, 0)) -> c3(MARK(from(x0)))
   A__SEL(s(sel(x0, from(z0))), cons(x2, x3)) -> c3(A__SEL(a__sel(mark(x0), a__from(mark(z0))), mark(x3)), MARK(sel(x0, from(z0))))
   A__SEL(s(sel(x0, sel(z0, z1))), cons(x2, x3)) -> c3(A__SEL(a__sel(mark(x0), a__sel(mark(z0), mark(z1))), mark(x3)), MARK(sel(x0, sel(z0, z1))))
   A__SEL(s(sel(x0, cons(z0, z1))), cons(x2, x3)) -> c3(A__SEL(a__sel(mark(x0), cons(mark(z0), z1)), mark(x3)), MARK(sel(x0, cons(z0, z1))))
   A__SEL(s(sel(x0, s(z0))), cons(x2, x3)) -> c3(A__SEL(a__sel(mark(x0), s(mark(z0))), mark(x3)), MARK(sel(x0, s(z0))))
   A__SEL(s(sel(x0, 0)), cons(x2, x3)) -> c3(A__SEL(a__sel(mark(x0), 0), mark(x3)), MARK(sel(x0, 0)))
   A__SEL(s(sel(from(z0), x1)), cons(x2, x3)) -> c3(A__SEL(a__sel(a__from(mark(z0)), mark(x1)), mark(x3)), MARK(sel(from(z0), x1)))
   A__SEL(s(sel(sel(z0, z1), x1)), cons(x2, x3)) -> c3(A__SEL(a__sel(a__sel(mark(z0), mark(z1)), mark(x1)), mark(x3)), MARK(sel(sel(z0, z1), x1)))
   A__SEL(s(sel(cons(z0, z1), x1)), cons(x2, x3)) -> c3(A__SEL(a__sel(cons(mark(z0), z1), mark(x1)), mark(x3)), MARK(sel(cons(z0, z1), x1)))
   A__SEL(s(sel(s(z0), x1)), cons(x2, x3)) -> c3(A__SEL(a__sel(s(mark(z0)), mark(x1)), mark(x3)), MARK(sel(s(z0), x1)))
   A__SEL(s(sel(0, x1)), cons(x2, x3)) -> c3(A__SEL(a__sel(0, mark(x1)), mark(x3)), MARK(sel(0, x1)))
   A__SEL(s(sel(x0, x1)), cons(x2, s(z0))) -> c3(MARK(sel(x0, x1)))
   A__SEL(s(sel(x0, x1)), cons(x2, 0)) -> c3(MARK(sel(x0, x1)))
   A__SEL(s(sel(x0, x1)), cons(x2, x3)) -> c3(MARK(sel(x0, x1)))
   A__SEL(s(s(from(z0))), cons(x1, x2)) -> c3(A__SEL(s(a__from(mark(z0))), mark(x2)), MARK(s(from(z0))))
   A__SEL(s(s(sel(z0, z1))), cons(x1, x2)) -> c3(A__SEL(s(a__sel(mark(z0), mark(z1))), mark(x2)), MARK(s(sel(z0, z1))))
   A__SEL(s(s(cons(z0, z1))), cons(x1, x2)) -> c3(A__SEL(s(cons(mark(z0), z1)), mark(x2)), MARK(s(cons(z0, z1))))
   A__SEL(s(s(s(z0))), cons(x1, x2)) -> c3(A__SEL(s(s(mark(z0))), mark(x2)), MARK(s(s(z0))))
   A__SEL(s(s(0)), cons(x1, x2)) -> c3(A__SEL(s(0), mark(x2)), MARK(s(0)))
   A__SEL(s(s(x0)), cons(x1, x2)) -> c3(MARK(s(x0)))
   A__SEL(s(s(x0)), cons(x1, s(z0))) -> c3(MARK(s(x0)))
   A__SEL(s(s(x0)), cons(x1, 0)) -> c3(MARK(s(x0)))
   A__SEL(s(x0), cons(x1, from(x2))) -> c4(A__SEL(mark(x0), cons(mark(mark(x2)), from(s(mark(x2))))), MARK(from(x2)))
   A__SEL(s(x0), cons(x1, from(from(z0)))) -> c4(A__SEL(mark(x0), a__from(a__from(mark(z0)))), MARK(from(from(z0))))
   A__SEL(s(x0), cons(x1, from(sel(z0, z1)))) -> c4(A__SEL(mark(x0), a__from(a__sel(mark(z0), mark(z1)))), MARK(from(sel(z0, z1))))
   A__SEL(s(x0), cons(x1, from(cons(z0, z1)))) -> c4(A__SEL(mark(x0), a__from(cons(mark(z0), z1))), MARK(from(cons(z0, z1))))
   A__SEL(s(x0), cons(x1, from(s(z0)))) -> c4(A__SEL(mark(x0), a__from(s(mark(z0)))), MARK(from(s(z0))))
   A__SEL(s(x0), cons(x1, from(0))) -> c4(A__SEL(mark(x0), a__from(0)), MARK(from(0)))
   A__SEL(s(from(z0)), cons(x1, from(x2))) -> c4(A__SEL(a__from(mark(z0)), a__from(mark(x2))), MARK(from(x2)))
   A__SEL(s(sel(z0, z1)), cons(x1, from(x2))) -> c4(A__SEL(a__sel(mark(z0), mark(z1)), a__from(mark(x2))), MARK(from(x2)))
   A__SEL(s(s(z0)), cons(x1, from(x2))) -> c4(A__SEL(s(mark(z0)), a__from(mark(x2))), MARK(from(x2)))
   A__SEL(s(0), cons(x1, from(x2))) -> c4(A__SEL(0, a__from(mark(x2))), MARK(from(x2)))
   A__SEL(s(x0), cons(x1, from(x2))) -> c4(MARK(from(x2)))
   A__SEL(s(cons(z0, z1)), cons(x1, from(x2))) -> c4(MARK(from(x2)))
   A__SEL(s(x0), cons(x1, sel(x2, from(z0)))) -> c4(A__SEL(mark(x0), a__sel(mark(x2), a__from(mark(z0)))), MARK(sel(x2, from(z0))))
   A__SEL(s(x0), cons(x1, sel(x2, sel(z0, z1)))) -> c4(A__SEL(mark(x0), a__sel(mark(x2), a__sel(mark(z0), mark(z1)))), MARK(sel(x2, sel(z0, z1))))
   A__SEL(s(x0), cons(x1, sel(x2, cons(z0, z1)))) -> c4(A__SEL(mark(x0), a__sel(mark(x2), cons(mark(z0), z1))), MARK(sel(x2, cons(z0, z1))))
   A__SEL(s(x0), cons(x1, sel(x2, s(z0)))) -> c4(A__SEL(mark(x0), a__sel(mark(x2), s(mark(z0)))), MARK(sel(x2, s(z0))))
   A__SEL(s(x0), cons(x1, sel(x2, 0))) -> c4(A__SEL(mark(x0), a__sel(mark(x2), 0)), MARK(sel(x2, 0)))
   A__SEL(s(x0), cons(x1, sel(from(z0), x3))) -> c4(A__SEL(mark(x0), a__sel(a__from(mark(z0)), mark(x3))), MARK(sel(from(z0), x3)))
   A__SEL(s(x0), cons(x1, sel(sel(z0, z1), x3))) -> c4(A__SEL(mark(x0), a__sel(a__sel(mark(z0), mark(z1)), mark(x3))), MARK(sel(sel(z0, z1), x3)))
   A__SEL(s(x0), cons(x1, sel(cons(z0, z1), x3))) -> c4(A__SEL(mark(x0), a__sel(cons(mark(z0), z1), mark(x3))), MARK(sel(cons(z0, z1), x3)))
   A__SEL(s(x0), cons(x1, sel(s(z0), x3))) -> c4(A__SEL(mark(x0), a__sel(s(mark(z0)), mark(x3))), MARK(sel(s(z0), x3)))
   A__SEL(s(x0), cons(x1, sel(0, x3))) -> c4(A__SEL(mark(x0), a__sel(0, mark(x3))), MARK(sel(0, x3)))
   A__SEL(s(from(z0)), cons(x1, sel(x2, x3))) -> c4(A__SEL(a__from(mark(z0)), a__sel(mark(x2), mark(x3))), MARK(sel(x2, x3)))
   A__SEL(s(sel(z0, z1)), cons(x1, sel(x2, x3))) -> c4(A__SEL(a__sel(mark(z0), mark(z1)), a__sel(mark(x2), mark(x3))), MARK(sel(x2, x3)))
   A__SEL(s(s(z0)), cons(x1, sel(x2, x3))) -> c4(A__SEL(s(mark(z0)), a__sel(mark(x2), mark(x3))), MARK(sel(x2, x3)))
   A__SEL(s(0), cons(x1, sel(x2, x3))) -> c4(A__SEL(0, a__sel(mark(x2), mark(x3))), MARK(sel(x2, x3)))
   A__SEL(s(x0), cons(x1, sel(x2, x3))) -> c4(MARK(sel(x2, x3)))
   A__SEL(s(cons(z0, z1)), cons(x1, sel(x2, x3))) -> c4(MARK(sel(x2, x3)))
   A__SEL(s(x0), cons(x1, cons(from(z0), x3))) -> c4(A__SEL(mark(x0), cons(a__from(mark(z0)), x3)), MARK(cons(from(z0), x3)))
   A__SEL(s(x0), cons(x1, cons(sel(z0, z1), x3))) -> c4(A__SEL(mark(x0), cons(a__sel(mark(z0), mark(z1)), x3)), MARK(cons(sel(z0, z1), x3)))
   A__SEL(s(x0), cons(x1, cons(cons(z0, z1), x3))) -> c4(A__SEL(mark(x0), cons(cons(mark(z0), z1), x3)), MARK(cons(cons(z0, z1), x3)))
   A__SEL(s(x0), cons(x1, cons(s(z0), x3))) -> c4(A__SEL(mark(x0), cons(s(mark(z0)), x3)), MARK(cons(s(z0), x3)))
   A__SEL(s(x0), cons(x1, cons(0, x3))) -> c4(A__SEL(mark(x0), cons(0, x3)), MARK(cons(0, x3)))
   A__SEL(s(from(z0)), cons(x1, cons(x2, x3))) -> c4(A__SEL(a__from(mark(z0)), cons(mark(x2), x3)), MARK(cons(x2, x3)))
   A__SEL(s(sel(z0, z1)), cons(x1, cons(x2, x3))) -> c4(A__SEL(a__sel(mark(z0), mark(z1)), cons(mark(x2), x3)), MARK(cons(x2, x3)))
   A__SEL(s(s(z0)), cons(x1, cons(x2, x3))) -> c4(A__SEL(s(mark(z0)), cons(mark(x2), x3)), MARK(cons(x2, x3)))
   A__SEL(s(0), cons(x1, cons(x2, x3))) -> c4(A__SEL(0, cons(mark(x2), x3)), MARK(cons(x2, x3)))
   A__SEL(s(x0), cons(x1, cons(x2, x3))) -> c4(MARK(cons(x2, x3)))
   A__SEL(s(cons(z0, z1)), cons(x1, cons(x2, x3))) -> c4(MARK(cons(x2, x3)))
   A__SEL(s(from(from(z0))), cons(x1, x2)) -> c4(A__SEL(a__from(a__from(mark(z0))), mark(x2)), MARK(x2))
   A__SEL(s(from(sel(z0, z1))), cons(x1, x2)) -> c4(A__SEL(a__from(a__sel(mark(z0), mark(z1))), mark(x2)), MARK(x2))
   A__SEL(s(from(cons(z0, z1))), cons(x1, x2)) -> c4(A__SEL(a__from(cons(mark(z0), z1)), mark(x2)), MARK(x2))
   A__SEL(s(from(s(z0))), cons(x1, x2)) -> c4(A__SEL(a__from(s(mark(z0))), mark(x2)), MARK(x2))
   A__SEL(s(from(0)), cons(x1, x2)) -> c4(A__SEL(a__from(0), mark(x2)), MARK(x2))
   A__SEL(s(from(x0)), cons(x1, s(z0))) -> c4(MARK(s(z0)))
   A__SEL(s(from(x0)), cons(x1, x2)) -> c4(MARK(x2))
   A__SEL(s(sel(x0, from(z0))), cons(x2, x3)) -> c4(A__SEL(a__sel(mark(x0), a__from(mark(z0))), mark(x3)), MARK(x3))
   A__SEL(s(sel(x0, sel(z0, z1))), cons(x2, x3)) -> c4(A__SEL(a__sel(mark(x0), a__sel(mark(z0), mark(z1))), mark(x3)), MARK(x3))
   A__SEL(s(sel(x0, cons(z0, z1))), cons(x2, x3)) -> c4(A__SEL(a__sel(mark(x0), cons(mark(z0), z1)), mark(x3)), MARK(x3))
   A__SEL(s(sel(x0, s(z0))), cons(x2, x3)) -> c4(A__SEL(a__sel(mark(x0), s(mark(z0))), mark(x3)), MARK(x3))
   A__SEL(s(sel(x0, 0)), cons(x2, x3)) -> c4(A__SEL(a__sel(mark(x0), 0), mark(x3)), MARK(x3))
   A__SEL(s(sel(from(z0), x1)), cons(x2, x3)) -> c4(A__SEL(a__sel(a__from(mark(z0)), mark(x1)), mark(x3)), MARK(x3))
   A__SEL(s(sel(sel(z0, z1), x1)), cons(x2, x3)) -> c4(A__SEL(a__sel(a__sel(mark(z0), mark(z1)), mark(x1)), mark(x3)), MARK(x3))
   A__SEL(s(sel(cons(z0, z1), x1)), cons(x2, x3)) -> c4(A__SEL(a__sel(cons(mark(z0), z1), mark(x1)), mark(x3)), MARK(x3))
   A__SEL(s(sel(s(z0), x1)), cons(x2, x3)) -> c4(A__SEL(a__sel(s(mark(z0)), mark(x1)), mark(x3)), MARK(x3))
   A__SEL(s(sel(0, x1)), cons(x2, x3)) -> c4(A__SEL(a__sel(0, mark(x1)), mark(x3)), MARK(x3))
   A__SEL(s(sel(x0, x1)), cons(x2, s(z0))) -> c4(MARK(s(z0)))
   A__SEL(s(sel(x0, x1)), cons(x2, x3)) -> c4(MARK(x3))
   A__SEL(s(s(from(z0))), cons(x1, x2)) -> c4(A__SEL(s(a__from(mark(z0))), mark(x2)), MARK(x2))
   A__SEL(s(s(sel(z0, z1))), cons(x1, x2)) -> c4(A__SEL(s(a__sel(mark(z0), mark(z1))), mark(x2)), MARK(x2))
   A__SEL(s(s(cons(z0, z1))), cons(x1, x2)) -> c4(A__SEL(s(cons(mark(z0), z1)), mark(x2)), MARK(x2))
   A__SEL(s(s(s(z0))), cons(x1, x2)) -> c4(A__SEL(s(s(mark(z0))), mark(x2)), MARK(x2))
   A__SEL(s(s(0)), cons(x1, x2)) -> c4(A__SEL(s(0), mark(x2)), MARK(x2))
   A__SEL(s(s(x0)), cons(x1, s(z0))) -> c4(MARK(s(z0)))
   A__SEL(s(0), cons(x0, s(z0))) -> c4(MARK(s(z0)))
   MARK(sel(x0, from(x1))) -> c7(A__SEL(mark(x0), cons(mark(mark(x1)), from(s(mark(x1))))), MARK(x0))
   MARK(sel(x0, from(from(z0)))) -> c7(A__SEL(mark(x0), a__from(a__from(mark(z0)))), MARK(x0))
   MARK(sel(x0, from(sel(z0, z1)))) -> c7(A__SEL(mark(x0), a__from(a__sel(mark(z0), mark(z1)))), MARK(x0))
   MARK(sel(x0, from(cons(z0, z1)))) -> c7(A__SEL(mark(x0), a__from(cons(mark(z0), z1))), MARK(x0))
   MARK(sel(x0, from(s(z0)))) -> c7(A__SEL(mark(x0), a__from(s(mark(z0)))), MARK(x0))
   MARK(sel(x0, from(0))) -> c7(A__SEL(mark(x0), a__from(0)), MARK(x0))
   MARK(sel(from(z0), from(x1))) -> c7(A__SEL(a__from(mark(z0)), a__from(mark(x1))), MARK(from(z0)))
   MARK(sel(sel(z0, z1), from(x1))) -> c7(A__SEL(a__sel(mark(z0), mark(z1)), a__from(mark(x1))), MARK(sel(z0, z1)))
   MARK(sel(s(z0), from(x1))) -> c7(A__SEL(s(mark(z0)), a__from(mark(x1))), MARK(s(z0)))
   MARK(sel(x0, from(x1))) -> c7(MARK(x0))
   MARK(sel(cons(z0, z1), from(x1))) -> c7(MARK(cons(z0, z1)))
   MARK(sel(0, from(x1))) -> c7(A__SEL(0, a__from(mark(x1))))
   MARK(sel(x0, sel(x1, from(z0)))) -> c7(A__SEL(mark(x0), a__sel(mark(x1), a__from(mark(z0)))), MARK(x0))
   MARK(sel(x0, sel(x1, sel(z0, z1)))) -> c7(A__SEL(mark(x0), a__sel(mark(x1), a__sel(mark(z0), mark(z1)))), MARK(x0))
   MARK(sel(x0, sel(x1, cons(z0, z1)))) -> c7(A__SEL(mark(x0), a__sel(mark(x1), cons(mark(z0), z1))), MARK(x0))
   MARK(sel(x0, sel(x1, s(z0)))) -> c7(A__SEL(mark(x0), a__sel(mark(x1), s(mark(z0)))), MARK(x0))
   MARK(sel(x0, sel(x1, 0))) -> c7(A__SEL(mark(x0), a__sel(mark(x1), 0)), MARK(x0))
   MARK(sel(x0, sel(from(z0), x2))) -> c7(A__SEL(mark(x0), a__sel(a__from(mark(z0)), mark(x2))), MARK(x0))
   MARK(sel(x0, sel(sel(z0, z1), x2))) -> c7(A__SEL(mark(x0), a__sel(a__sel(mark(z0), mark(z1)), mark(x2))), MARK(x0))
   MARK(sel(x0, sel(cons(z0, z1), x2))) -> c7(A__SEL(mark(x0), a__sel(cons(mark(z0), z1), mark(x2))), MARK(x0))
   MARK(sel(x0, sel(s(z0), x2))) -> c7(A__SEL(mark(x0), a__sel(s(mark(z0)), mark(x2))), MARK(x0))
   MARK(sel(x0, sel(0, x2))) -> c7(A__SEL(mark(x0), a__sel(0, mark(x2))), MARK(x0))
   MARK(sel(from(z0), sel(x1, x2))) -> c7(A__SEL(a__from(mark(z0)), a__sel(mark(x1), mark(x2))), MARK(from(z0)))
   MARK(sel(sel(z0, z1), sel(x1, x2))) -> c7(A__SEL(a__sel(mark(z0), mark(z1)), a__sel(mark(x1), mark(x2))), MARK(sel(z0, z1)))
   MARK(sel(s(z0), sel(x1, x2))) -> c7(A__SEL(s(mark(z0)), a__sel(mark(x1), mark(x2))), MARK(s(z0)))
   MARK(sel(x0, sel(x1, x2))) -> c7(MARK(x0))
   MARK(sel(cons(z0, z1), sel(x1, x2))) -> c7(MARK(cons(z0, z1)))
   MARK(sel(0, sel(x1, x2))) -> c7(A__SEL(0, a__sel(mark(x1), mark(x2))))
   MARK(sel(x0, cons(from(z0), x2))) -> c7(A__SEL(mark(x0), cons(a__from(mark(z0)), x2)), MARK(x0))
   MARK(sel(x0, cons(sel(z0, z1), x2))) -> c7(A__SEL(mark(x0), cons(a__sel(mark(z0), mark(z1)), x2)), MARK(x0))
   MARK(sel(x0, cons(cons(z0, z1), x2))) -> c7(A__SEL(mark(x0), cons(cons(mark(z0), z1), x2)), MARK(x0))
   MARK(sel(x0, cons(s(z0), x2))) -> c7(A__SEL(mark(x0), cons(s(mark(z0)), x2)), MARK(x0))
   MARK(sel(x0, cons(0, x2))) -> c7(A__SEL(mark(x0), cons(0, x2)), MARK(x0))
   MARK(sel(from(z0), cons(x1, x2))) -> c7(A__SEL(a__from(mark(z0)), cons(mark(x1), x2)), MARK(from(z0)))
   MARK(sel(sel(z0, z1), cons(x1, x2))) -> c7(A__SEL(a__sel(mark(z0), mark(z1)), cons(mark(x1), x2)), MARK(sel(z0, z1)))
   MARK(sel(s(z0), cons(x1, x2))) -> c7(A__SEL(s(mark(z0)), cons(mark(x1), x2)), MARK(s(z0)))
   MARK(sel(cons(z0, z1), cons(x1, x2))) -> c7(MARK(cons(z0, z1)))
   MARK(sel(0, cons(x1, x2))) -> c7(A__SEL(0, cons(mark(x1), x2)))
   MARK(sel(from(from(z0)), x1)) -> c7(A__SEL(a__from(a__from(mark(z0))), mark(x1)), MARK(from(from(z0))))
   MARK(sel(from(sel(z0, z1)), x1)) -> c7(A__SEL(a__from(a__sel(mark(z0), mark(z1))), mark(x1)), MARK(from(sel(z0, z1))))
   MARK(sel(from(cons(z0, z1)), x1)) -> c7(A__SEL(a__from(cons(mark(z0), z1)), mark(x1)), MARK(from(cons(z0, z1))))
   MARK(sel(from(s(z0)), x1)) -> c7(A__SEL(a__from(s(mark(z0))), mark(x1)), MARK(from(s(z0))))
   MARK(sel(from(0), x1)) -> c7(A__SEL(a__from(0), mark(x1)), MARK(from(0)))
   MARK(sel(from(x0), x1)) -> c7(MARK(from(x0)))
   MARK(sel(from(x0), s(z0))) -> c7(MARK(from(x0)))
   MARK(sel(from(x0), 0)) -> c7(MARK(from(x0)))
   MARK(sel(sel(x0, from(z0)), x2)) -> c7(A__SEL(a__sel(mark(x0), a__from(mark(z0))), mark(x2)), MARK(sel(x0, from(z0))))
   MARK(sel(sel(x0, sel(z0, z1)), x2)) -> c7(A__SEL(a__sel(mark(x0), a__sel(mark(z0), mark(z1))), mark(x2)), MARK(sel(x0, sel(z0, z1))))
   MARK(sel(sel(x0, cons(z0, z1)), x2)) -> c7(A__SEL(a__sel(mark(x0), cons(mark(z0), z1)), mark(x2)), MARK(sel(x0, cons(z0, z1))))
   MARK(sel(sel(x0, s(z0)), x2)) -> c7(A__SEL(a__sel(mark(x0), s(mark(z0))), mark(x2)), MARK(sel(x0, s(z0))))
   MARK(sel(sel(x0, 0), x2)) -> c7(A__SEL(a__sel(mark(x0), 0), mark(x2)), MARK(sel(x0, 0)))
   MARK(sel(sel(from(z0), x1), x2)) -> c7(A__SEL(a__sel(a__from(mark(z0)), mark(x1)), mark(x2)), MARK(sel(from(z0), x1)))
   MARK(sel(sel(sel(z0, z1), x1), x2)) -> c7(A__SEL(a__sel(a__sel(mark(z0), mark(z1)), mark(x1)), mark(x2)), MARK(sel(sel(z0, z1), x1)))
   MARK(sel(sel(cons(z0, z1), x1), x2)) -> c7(A__SEL(a__sel(cons(mark(z0), z1), mark(x1)), mark(x2)), MARK(sel(cons(z0, z1), x1)))
   MARK(sel(sel(s(z0), x1), x2)) -> c7(A__SEL(a__sel(s(mark(z0)), mark(x1)), mark(x2)), MARK(sel(s(z0), x1)))
   MARK(sel(sel(0, x1), x2)) -> c7(A__SEL(a__sel(0, mark(x1)), mark(x2)), MARK(sel(0, x1)))
   MARK(sel(sel(x0, x1), s(z0))) -> c7(MARK(sel(x0, x1)))
   MARK(sel(sel(x0, x1), 0)) -> c7(MARK(sel(x0, x1)))
   MARK(sel(sel(x0, x1), x2)) -> c7(MARK(sel(x0, x1)))
   MARK(sel(s(from(z0)), x1)) -> c7(A__SEL(s(a__from(mark(z0))), mark(x1)), MARK(s(from(z0))))
   MARK(sel(s(sel(z0, z1)), x1)) -> c7(A__SEL(s(a__sel(mark(z0), mark(z1))), mark(x1)), MARK(s(sel(z0, z1))))
   MARK(sel(s(cons(z0, z1)), x1)) -> c7(A__SEL(s(cons(mark(z0), z1)), mark(x1)), MARK(s(cons(z0, z1))))
   MARK(sel(s(s(z0)), x1)) -> c7(A__SEL(s(s(mark(z0))), mark(x1)), MARK(s(s(z0))))
   MARK(sel(s(0), x1)) -> c7(A__SEL(s(0), mark(x1)), MARK(s(0)))
   MARK(sel(s(x0), x1)) -> c7(MARK(s(x0)))
   MARK(sel(s(x0), s(z0))) -> c7(MARK(s(x0)))
   MARK(sel(s(x0), 0)) -> c7(MARK(s(x0)))
   MARK(sel(x0, from(x1))) -> c8(A__SEL(mark(x0), cons(mark(mark(x1)), from(s(mark(x1))))), MARK(from(x1)))
   MARK(sel(x0, from(from(z0)))) -> c8(A__SEL(mark(x0), a__from(a__from(mark(z0)))), MARK(from(from(z0))))
   MARK(sel(x0, from(sel(z0, z1)))) -> c8(A__SEL(mark(x0), a__from(a__sel(mark(z0), mark(z1)))), MARK(from(sel(z0, z1))))
   MARK(sel(x0, from(cons(z0, z1)))) -> c8(A__SEL(mark(x0), a__from(cons(mark(z0), z1))), MARK(from(cons(z0, z1))))
   MARK(sel(x0, from(s(z0)))) -> c8(A__SEL(mark(x0), a__from(s(mark(z0)))), MARK(from(s(z0))))
   MARK(sel(x0, from(0))) -> c8(A__SEL(mark(x0), a__from(0)), MARK(from(0)))
   MARK(sel(from(z0), from(x1))) -> c8(A__SEL(a__from(mark(z0)), a__from(mark(x1))), MARK(from(x1)))
   MARK(sel(sel(z0, z1), from(x1))) -> c8(A__SEL(a__sel(mark(z0), mark(z1)), a__from(mark(x1))), MARK(from(x1)))
   MARK(sel(s(z0), from(x1))) -> c8(A__SEL(s(mark(z0)), a__from(mark(x1))), MARK(from(x1)))
   MARK(sel(0, from(x1))) -> c8(A__SEL(0, a__from(mark(x1))), MARK(from(x1)))
   MARK(sel(x0, from(x1))) -> c8(MARK(from(x1)))
   MARK(sel(cons(z0, z1), from(x1))) -> c8(MARK(from(x1)))
   MARK(sel(x0, sel(x1, from(z0)))) -> c8(A__SEL(mark(x0), a__sel(mark(x1), a__from(mark(z0)))), MARK(sel(x1, from(z0))))
   MARK(sel(x0, sel(x1, sel(z0, z1)))) -> c8(A__SEL(mark(x0), a__sel(mark(x1), a__sel(mark(z0), mark(z1)))), MARK(sel(x1, sel(z0, z1))))
   MARK(sel(x0, sel(x1, cons(z0, z1)))) -> c8(A__SEL(mark(x0), a__sel(mark(x1), cons(mark(z0), z1))), MARK(sel(x1, cons(z0, z1))))
   MARK(sel(x0, sel(x1, s(z0)))) -> c8(A__SEL(mark(x0), a__sel(mark(x1), s(mark(z0)))), MARK(sel(x1, s(z0))))
   MARK(sel(x0, sel(x1, 0))) -> c8(A__SEL(mark(x0), a__sel(mark(x1), 0)), MARK(sel(x1, 0)))
   MARK(sel(x0, sel(from(z0), x2))) -> c8(A__SEL(mark(x0), a__sel(a__from(mark(z0)), mark(x2))), MARK(sel(from(z0), x2)))
   MARK(sel(x0, sel(sel(z0, z1), x2))) -> c8(A__SEL(mark(x0), a__sel(a__sel(mark(z0), mark(z1)), mark(x2))), MARK(sel(sel(z0, z1), x2)))
   MARK(sel(x0, sel(cons(z0, z1), x2))) -> c8(A__SEL(mark(x0), a__sel(cons(mark(z0), z1), mark(x2))), MARK(sel(cons(z0, z1), x2)))
   MARK(sel(x0, sel(s(z0), x2))) -> c8(A__SEL(mark(x0), a__sel(s(mark(z0)), mark(x2))), MARK(sel(s(z0), x2)))
   MARK(sel(x0, sel(0, x2))) -> c8(A__SEL(mark(x0), a__sel(0, mark(x2))), MARK(sel(0, x2)))
   MARK(sel(from(z0), sel(x1, x2))) -> c8(A__SEL(a__from(mark(z0)), a__sel(mark(x1), mark(x2))), MARK(sel(x1, x2)))
   MARK(sel(sel(z0, z1), sel(x1, x2))) -> c8(A__SEL(a__sel(mark(z0), mark(z1)), a__sel(mark(x1), mark(x2))), MARK(sel(x1, x2)))
   MARK(sel(s(z0), sel(x1, x2))) -> c8(A__SEL(s(mark(z0)), a__sel(mark(x1), mark(x2))), MARK(sel(x1, x2)))
   MARK(sel(0, sel(x1, x2))) -> c8(A__SEL(0, a__sel(mark(x1), mark(x2))), MARK(sel(x1, x2)))
   MARK(sel(x0, sel(x1, x2))) -> c8(MARK(sel(x1, x2)))
   MARK(sel(cons(z0, z1), sel(x1, x2))) -> c8(MARK(sel(x1, x2)))
   MARK(sel(x0, cons(from(z0), x2))) -> c8(A__SEL(mark(x0), cons(a__from(mark(z0)), x2)), MARK(cons(from(z0), x2)))
   MARK(sel(x0, cons(sel(z0, z1), x2))) -> c8(A__SEL(mark(x0), cons(a__sel(mark(z0), mark(z1)), x2)), MARK(cons(sel(z0, z1), x2)))
   MARK(sel(x0, cons(cons(z0, z1), x2))) -> c8(A__SEL(mark(x0), cons(cons(mark(z0), z1), x2)), MARK(cons(cons(z0, z1), x2)))
   MARK(sel(x0, cons(s(z0), x2))) -> c8(A__SEL(mark(x0), cons(s(mark(z0)), x2)), MARK(cons(s(z0), x2)))
   MARK(sel(x0, cons(0, x2))) -> c8(A__SEL(mark(x0), cons(0, x2)), MARK(cons(0, x2)))
   MARK(sel(from(z0), cons(x1, x2))) -> c8(A__SEL(a__from(mark(z0)), cons(mark(x1), x2)), MARK(cons(x1, x2)))
   MARK(sel(sel(z0, z1), cons(x1, x2))) -> c8(A__SEL(a__sel(mark(z0), mark(z1)), cons(mark(x1), x2)), MARK(cons(x1, x2)))
   MARK(sel(s(z0), cons(x1, x2))) -> c8(A__SEL(s(mark(z0)), cons(mark(x1), x2)), MARK(cons(x1, x2)))
   MARK(sel(0, cons(x1, x2))) -> c8(A__SEL(0, cons(mark(x1), x2)), MARK(cons(x1, x2)))
   MARK(sel(x0, cons(x1, x2))) -> c8(MARK(cons(x1, x2)))
   MARK(sel(cons(z0, z1), cons(x1, x2))) -> c8(MARK(cons(x1, x2)))
   MARK(sel(from(x0), s(z0))) -> c8(A__SEL(a__from(mark(x0)), s(mark(z0))), MARK(s(z0)))
   MARK(sel(from(x0), x1)) -> c8(A__SEL(cons(mark(mark(x0)), from(s(mark(x0)))), mark(x1)), MARK(x1))
   MARK(sel(from(x0), x1)) -> c8(A__SEL(from(mark(x0)), mark(x1)), MARK(x1))
   MARK(sel(from(from(z0)), x1)) -> c8(A__SEL(a__from(a__from(mark(z0))), mark(x1)), MARK(x1))
   MARK(sel(from(sel(z0, z1)), x1)) -> c8(A__SEL(a__from(a__sel(mark(z0), mark(z1))), mark(x1)), MARK(x1))
   MARK(sel(from(cons(z0, z1)), x1)) -> c8(A__SEL(a__from(cons(mark(z0), z1)), mark(x1)), MARK(x1))
   MARK(sel(from(s(z0)), x1)) -> c8(A__SEL(a__from(s(mark(z0))), mark(x1)), MARK(x1))
   MARK(sel(from(0), x1)) -> c8(A__SEL(a__from(0), mark(x1)), MARK(x1))
K tuples:none
Defined Rule Symbols:   a__from_1, a__sel_2, mark_1

Defined Pair Symbols:   A__FROM_1, A__SEL_2, MARK_1

Compound Symbols:   c_1, c2_1, c6_2, c9_1, c10_1, c3_1, c4_1, c7_1, c8_2, c8_1, c3_2, c4_2, c7_2


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

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

(186)
Obligation:
Complexity Dependency Tuples Problem

Rules:
   a__from(z0) -> cons(mark(z0), from(s(z0)))
   a__from(z0) -> from(z0)
   a__sel(0, cons(z0, z1)) -> mark(z0)
   a__sel(s(z0), cons(z1, z2)) -> a__sel(mark(z0), mark(z2))
   a__sel(z0, z1) -> sel(z0, z1)
   mark(from(z0)) -> a__from(mark(z0))
   mark(sel(z0, z1)) -> a__sel(mark(z0), mark(z1))
   mark(cons(z0, z1)) -> cons(mark(z0), z1)
   mark(s(z0)) -> s(mark(z0))
   mark(0) -> 0
Tuples:
   A__FROM(z0) -> c(MARK(z0))
   A__SEL(0, cons(z0, z1)) -> c2(MARK(z0))
   MARK(from(z0)) -> c6(A__FROM(mark(z0)), MARK(z0))
   MARK(cons(z0, z1)) -> c9(MARK(z0))
   MARK(s(z0)) -> c10(MARK(z0))
   A__SEL(s(x0), cons(x1, s(z0))) -> c3(MARK(x0))
   A__SEL(s(x0), cons(x1, 0)) -> c3(MARK(x0))
   A__SEL(s(cons(z0, z1)), cons(x1, x2)) -> c3(MARK(cons(z0, z1)))
   A__SEL(s(x0), cons(x1, s(z0))) -> c4(MARK(s(z0)))
   A__SEL(s(cons(z0, z1)), cons(x1, x2)) -> c4(MARK(x2))
   MARK(sel(x0, s(z0))) -> c7(MARK(x0))
   MARK(sel(x0, 0)) -> c7(MARK(x0))
   MARK(sel(cons(z0, z1), x1)) -> c7(MARK(cons(z0, z1)))
   MARK(sel(sel(z0, z1), x1)) -> c8(A__SEL(a__sel(mark(z0), mark(z1)), mark(x1)), MARK(x1))
   MARK(sel(s(z0), x1)) -> c8(A__SEL(s(mark(z0)), mark(x1)), MARK(x1))
   MARK(sel(0, x1)) -> c8(A__SEL(0, mark(x1)), MARK(x1))
   MARK(sel(x0, s(z0))) -> c8(MARK(s(z0)))
   MARK(sel(cons(z0, z1), x1)) -> c8(MARK(x1))
   A__SEL(s(x0), cons(x1, from(x2))) -> c3(A__SEL(mark(x0), cons(mark(mark(x2)), from(s(mark(x2))))), MARK(x0))
   A__SEL(s(x0), cons(x1, from(from(z0)))) -> c3(A__SEL(mark(x0), a__from(a__from(mark(z0)))), MARK(x0))
   A__SEL(s(x0), cons(x1, from(sel(z0, z1)))) -> c3(A__SEL(mark(x0), a__from(a__sel(mark(z0), mark(z1)))), MARK(x0))
   A__SEL(s(x0), cons(x1, from(cons(z0, z1)))) -> c3(A__SEL(mark(x0), a__from(cons(mark(z0), z1))), MARK(x0))
   A__SEL(s(x0), cons(x1, from(s(z0)))) -> c3(A__SEL(mark(x0), a__from(s(mark(z0)))), MARK(x0))
   A__SEL(s(x0), cons(x1, from(0))) -> c3(A__SEL(mark(x0), a__from(0)), MARK(x0))
   A__SEL(s(from(z0)), cons(x1, from(x2))) -> c3(A__SEL(a__from(mark(z0)), a__from(mark(x2))), MARK(from(z0)))
   A__SEL(s(sel(z0, z1)), cons(x1, from(x2))) -> c3(A__SEL(a__sel(mark(z0), mark(z1)), a__from(mark(x2))), MARK(sel(z0, z1)))
   A__SEL(s(s(z0)), cons(x1, from(x2))) -> c3(A__SEL(s(mark(z0)), a__from(mark(x2))), MARK(s(z0)))
   A__SEL(s(x0), cons(x1, from(x2))) -> c3(MARK(x0))
   A__SEL(s(cons(z0, z1)), cons(x1, from(x2))) -> c3(MARK(cons(z0, z1)))
   A__SEL(s(0), cons(x1, from(x2))) -> c3(A__SEL(0, a__from(mark(x2))))
   A__SEL(s(x0), cons(x1, sel(x2, from(z0)))) -> c3(A__SEL(mark(x0), a__sel(mark(x2), a__from(mark(z0)))), MARK(x0))
   A__SEL(s(x0), cons(x1, sel(x2, sel(z0, z1)))) -> c3(A__SEL(mark(x0), a__sel(mark(x2), a__sel(mark(z0), mark(z1)))), MARK(x0))
   A__SEL(s(x0), cons(x1, sel(x2, cons(z0, z1)))) -> c3(A__SEL(mark(x0), a__sel(mark(x2), cons(mark(z0), z1))), MARK(x0))
   A__SEL(s(x0), cons(x1, sel(x2, s(z0)))) -> c3(A__SEL(mark(x0), a__sel(mark(x2), s(mark(z0)))), MARK(x0))
   A__SEL(s(x0), cons(x1, sel(x2, 0))) -> c3(A__SEL(mark(x0), a__sel(mark(x2), 0)), MARK(x0))
   A__SEL(s(x0), cons(x1, sel(from(z0), x3))) -> c3(A__SEL(mark(x0), a__sel(a__from(mark(z0)), mark(x3))), MARK(x0))
   A__SEL(s(x0), cons(x1, sel(sel(z0, z1), x3))) -> c3(A__SEL(mark(x0), a__sel(a__sel(mark(z0), mark(z1)), mark(x3))), MARK(x0))
   A__SEL(s(x0), cons(x1, sel(cons(z0, z1), x3))) -> c3(A__SEL(mark(x0), a__sel(cons(mark(z0), z1), mark(x3))), MARK(x0))
   A__SEL(s(x0), cons(x1, sel(s(z0), x3))) -> c3(A__SEL(mark(x0), a__sel(s(mark(z0)), mark(x3))), MARK(x0))
   A__SEL(s(x0), cons(x1, sel(0, x3))) -> c3(A__SEL(mark(x0), a__sel(0, mark(x3))), MARK(x0))
   A__SEL(s(from(z0)), cons(x1, sel(x2, x3))) -> c3(A__SEL(a__from(mark(z0)), a__sel(mark(x2), mark(x3))), MARK(from(z0)))
   A__SEL(s(sel(z0, z1)), cons(x1, sel(x2, x3))) -> c3(A__SEL(a__sel(mark(z0), mark(z1)), a__sel(mark(x2), mark(x3))), MARK(sel(z0, z1)))
   A__SEL(s(s(z0)), cons(x1, sel(x2, x3))) -> c3(A__SEL(s(mark(z0)), a__sel(mark(x2), mark(x3))), MARK(s(z0)))
   A__SEL(s(x0), cons(x1, sel(x2, x3))) -> c3(MARK(x0))
   A__SEL(s(cons(z0, z1)), cons(x1, sel(x2, x3))) -> c3(MARK(cons(z0, z1)))
   A__SEL(s(0), cons(x1, sel(x2, x3))) -> c3(A__SEL(0, a__sel(mark(x2), mark(x3))))
   A__SEL(s(x0), cons(x1, cons(from(z0), x3))) -> c3(A__SEL(mark(x0), cons(a__from(mark(z0)), x3)), MARK(x0))
   A__SEL(s(x0), cons(x1, cons(sel(z0, z1), x3))) -> c3(A__SEL(mark(x0), cons(a__sel(mark(z0), mark(z1)), x3)), MARK(x0))
   A__SEL(s(x0), cons(x1, cons(cons(z0, z1), x3))) -> c3(A__SEL(mark(x0), cons(cons(mark(z0), z1), x3)), MARK(x0))
   A__SEL(s(x0), cons(x1, cons(s(z0), x3))) -> c3(A__SEL(mark(x0), cons(s(mark(z0)), x3)), MARK(x0))
   A__SEL(s(x0), cons(x1, cons(0, x3))) -> c3(A__SEL(mark(x0), cons(0, x3)), MARK(x0))
   A__SEL(s(from(z0)), cons(x1, cons(x2, x3))) -> c3(A__SEL(a__from(mark(z0)), cons(mark(x2), x3)), MARK(from(z0)))
   A__SEL(s(sel(z0, z1)), cons(x1, cons(x2, x3))) -> c3(A__SEL(a__sel(mark(z0), mark(z1)), cons(mark(x2), x3)), MARK(sel(z0, z1)))
   A__SEL(s(s(z0)), cons(x1, cons(x2, x3))) -> c3(A__SEL(s(mark(z0)), cons(mark(x2), x3)), MARK(s(z0)))
   A__SEL(s(cons(z0, z1)), cons(x1, cons(x2, x3))) -> c3(MARK(cons(z0, z1)))
   A__SEL(s(0), cons(x1, cons(x2, x3))) -> c3(A__SEL(0, cons(mark(x2), x3)))
   A__SEL(s(from(from(z0))), cons(x1, x2)) -> c3(A__SEL(a__from(a__from(mark(z0))), mark(x2)), MARK(from(from(z0))))
   A__SEL(s(from(sel(z0, z1))), cons(x1, x2)) -> c3(A__SEL(a__from(a__sel(mark(z0), mark(z1))), mark(x2)), MARK(from(sel(z0, z1))))
   A__SEL(s(from(cons(z0, z1))), cons(x1, x2)) -> c3(A__SEL(a__from(cons(mark(z0), z1)), mark(x2)), MARK(from(cons(z0, z1))))
   A__SEL(s(from(s(z0))), cons(x1, x2)) -> c3(A__SEL(a__from(s(mark(z0))), mark(x2)), MARK(from(s(z0))))
   A__SEL(s(from(0)), cons(x1, x2)) -> c3(A__SEL(a__from(0), mark(x2)), MARK(from(0)))
   A__SEL(s(from(x0)), cons(x1, x2)) -> c3(MARK(from(x0)))
   A__SEL(s(from(x0)), cons(x1, s(z0))) -> c3(MARK(from(x0)))
   A__SEL(s(from(x0)), cons(x1, 0)) -> c3(MARK(from(x0)))
   A__SEL(s(sel(x0, from(z0))), cons(x2, x3)) -> c3(A__SEL(a__sel(mark(x0), a__from(mark(z0))), mark(x3)), MARK(sel(x0, from(z0))))
   A__SEL(s(sel(x0, sel(z0, z1))), cons(x2, x3)) -> c3(A__SEL(a__sel(mark(x0), a__sel(mark(z0), mark(z1))), mark(x3)), MARK(sel(x0, sel(z0, z1))))
   A__SEL(s(sel(x0, cons(z0, z1))), cons(x2, x3)) -> c3(A__SEL(a__sel(mark(x0), cons(mark(z0), z1)), mark(x3)), MARK(sel(x0, cons(z0, z1))))
   A__SEL(s(sel(x0, s(z0))), cons(x2, x3)) -> c3(A__SEL(a__sel(mark(x0), s(mark(z0))), mark(x3)), MARK(sel(x0, s(z0))))
   A__SEL(s(sel(x0, 0)), cons(x2, x3)) -> c3(A__SEL(a__sel(mark(x0), 0), mark(x3)), MARK(sel(x0, 0)))
   A__SEL(s(sel(from(z0), x1)), cons(x2, x3)) -> c3(A__SEL(a__sel(a__from(mark(z0)), mark(x1)), mark(x3)), MARK(sel(from(z0), x1)))
   A__SEL(s(sel(sel(z0, z1), x1)), cons(x2, x3)) -> c3(A__SEL(a__sel(a__sel(mark(z0), mark(z1)), mark(x1)), mark(x3)), MARK(sel(sel(z0, z1), x1)))
   A__SEL(s(sel(cons(z0, z1), x1)), cons(x2, x3)) -> c3(A__SEL(a__sel(cons(mark(z0), z1), mark(x1)), mark(x3)), MARK(sel(cons(z0, z1), x1)))
   A__SEL(s(sel(s(z0), x1)), cons(x2, x3)) -> c3(A__SEL(a__sel(s(mark(z0)), mark(x1)), mark(x3)), MARK(sel(s(z0), x1)))
   A__SEL(s(sel(0, x1)), cons(x2, x3)) -> c3(A__SEL(a__sel(0, mark(x1)), mark(x3)), MARK(sel(0, x1)))
   A__SEL(s(sel(x0, x1)), cons(x2, s(z0))) -> c3(MARK(sel(x0, x1)))
   A__SEL(s(sel(x0, x1)), cons(x2, 0)) -> c3(MARK(sel(x0, x1)))
   A__SEL(s(sel(x0, x1)), cons(x2, x3)) -> c3(MARK(sel(x0, x1)))
   A__SEL(s(s(from(z0))), cons(x1, x2)) -> c3(A__SEL(s(a__from(mark(z0))), mark(x2)), MARK(s(from(z0))))
   A__SEL(s(s(sel(z0, z1))), cons(x1, x2)) -> c3(A__SEL(s(a__sel(mark(z0), mark(z1))), mark(x2)), MARK(s(sel(z0, z1))))
   A__SEL(s(s(cons(z0, z1))), cons(x1, x2)) -> c3(A__SEL(s(cons(mark(z0), z1)), mark(x2)), MARK(s(cons(z0, z1))))
   A__SEL(s(s(s(z0))), cons(x1, x2)) -> c3(A__SEL(s(s(mark(z0))), mark(x2)), MARK(s(s(z0))))
   A__SEL(s(s(0)), cons(x1, x2)) -> c3(A__SEL(s(0), mark(x2)), MARK(s(0)))
   A__SEL(s(s(x0)), cons(x1, x2)) -> c3(MARK(s(x0)))
   A__SEL(s(s(x0)), cons(x1, s(z0))) -> c3(MARK(s(x0)))
   A__SEL(s(s(x0)), cons(x1, 0)) -> c3(MARK(s(x0)))
   A__SEL(s(x0), cons(x1, from(x2))) -> c4(A__SEL(mark(x0), cons(mark(mark(x2)), from(s(mark(x2))))), MARK(from(x2)))
   A__SEL(s(x0), cons(x1, from(from(z0)))) -> c4(A__SEL(mark(x0), a__from(a__from(mark(z0)))), MARK(from(from(z0))))
   A__SEL(s(x0), cons(x1, from(sel(z0, z1)))) -> c4(A__SEL(mark(x0), a__from(a__sel(mark(z0), mark(z1)))), MARK(from(sel(z0, z1))))
   A__SEL(s(x0), cons(x1, from(cons(z0, z1)))) -> c4(A__SEL(mark(x0), a__from(cons(mark(z0), z1))), MARK(from(cons(z0, z1))))
   A__SEL(s(x0), cons(x1, from(s(z0)))) -> c4(A__SEL(mark(x0), a__from(s(mark(z0)))), MARK(from(s(z0))))
   A__SEL(s(x0), cons(x1, from(0))) -> c4(A__SEL(mark(x0), a__from(0)), MARK(from(0)))
   A__SEL(s(from(z0)), cons(x1, from(x2))) -> c4(A__SEL(a__from(mark(z0)), a__from(mark(x2))), MARK(from(x2)))
   A__SEL(s(sel(z0, z1)), cons(x1, from(x2))) -> c4(A__SEL(a__sel(mark(z0), mark(z1)), a__from(mark(x2))), MARK(from(x2)))
   A__SEL(s(s(z0)), cons(x1, from(x2))) -> c4(A__SEL(s(mark(z0)), a__from(mark(x2))), MARK(from(x2)))
   A__SEL(s(0), cons(x1, from(x2))) -> c4(A__SEL(0, a__from(mark(x2))), MARK(from(x2)))
   A__SEL(s(x0), cons(x1, from(x2))) -> c4(MARK(from(x2)))
   A__SEL(s(cons(z0, z1)), cons(x1, from(x2))) -> c4(MARK(from(x2)))
   A__SEL(s(x0), cons(x1, sel(x2, from(z0)))) -> c4(A__SEL(mark(x0), a__sel(mark(x2), a__from(mark(z0)))), MARK(sel(x2, from(z0))))
   A__SEL(s(x0), cons(x1, sel(x2, sel(z0, z1)))) -> c4(A__SEL(mark(x0), a__sel(mark(x2), a__sel(mark(z0), mark(z1)))), MARK(sel(x2, sel(z0, z1))))
   A__SEL(s(x0), cons(x1, sel(x2, cons(z0, z1)))) -> c4(A__SEL(mark(x0), a__sel(mark(x2), cons(mark(z0), z1))), MARK(sel(x2, cons(z0, z1))))
   A__SEL(s(x0), cons(x1, sel(x2, s(z0)))) -> c4(A__SEL(mark(x0), a__sel(mark(x2), s(mark(z0)))), MARK(sel(x2, s(z0))))
   A__SEL(s(x0), cons(x1, sel(x2, 0))) -> c4(A__SEL(mark(x0), a__sel(mark(x2), 0)), MARK(sel(x2, 0)))
   A__SEL(s(x0), cons(x1, sel(from(z0), x3))) -> c4(A__SEL(mark(x0), a__sel(a__from(mark(z0)), mark(x3))), MARK(sel(from(z0), x3)))
   A__SEL(s(x0), cons(x1, sel(sel(z0, z1), x3))) -> c4(A__SEL(mark(x0), a__sel(a__sel(mark(z0), mark(z1)), mark(x3))), MARK(sel(sel(z0, z1), x3)))
   A__SEL(s(x0), cons(x1, sel(cons(z0, z1), x3))) -> c4(A__SEL(mark(x0), a__sel(cons(mark(z0), z1), mark(x3))), MARK(sel(cons(z0, z1), x3)))
   A__SEL(s(x0), cons(x1, sel(s(z0), x3))) -> c4(A__SEL(mark(x0), a__sel(s(mark(z0)), mark(x3))), MARK(sel(s(z0), x3)))
   A__SEL(s(x0), cons(x1, sel(0, x3))) -> c4(A__SEL(mark(x0), a__sel(0, mark(x3))), MARK(sel(0, x3)))
   A__SEL(s(from(z0)), cons(x1, sel(x2, x3))) -> c4(A__SEL(a__from(mark(z0)), a__sel(mark(x2), mark(x3))), MARK(sel(x2, x3)))
   A__SEL(s(sel(z0, z1)), cons(x1, sel(x2, x3))) -> c4(A__SEL(a__sel(mark(z0), mark(z1)), a__sel(mark(x2), mark(x3))), MARK(sel(x2, x3)))
   A__SEL(s(s(z0)), cons(x1, sel(x2, x3))) -> c4(A__SEL(s(mark(z0)), a__sel(mark(x2), mark(x3))), MARK(sel(x2, x3)))
   A__SEL(s(0), cons(x1, sel(x2, x3))) -> c4(A__SEL(0, a__sel(mark(x2), mark(x3))), MARK(sel(x2, x3)))
   A__SEL(s(x0), cons(x1, sel(x2, x3))) -> c4(MARK(sel(x2, x3)))
   A__SEL(s(cons(z0, z1)), cons(x1, sel(x2, x3))) -> c4(MARK(sel(x2, x3)))
   A__SEL(s(x0), cons(x1, cons(from(z0), x3))) -> c4(A__SEL(mark(x0), cons(a__from(mark(z0)), x3)), MARK(cons(from(z0), x3)))
   A__SEL(s(x0), cons(x1, cons(sel(z0, z1), x3))) -> c4(A__SEL(mark(x0), cons(a__sel(mark(z0), mark(z1)), x3)), MARK(cons(sel(z0, z1), x3)))
   A__SEL(s(x0), cons(x1, cons(cons(z0, z1), x3))) -> c4(A__SEL(mark(x0), cons(cons(mark(z0), z1), x3)), MARK(cons(cons(z0, z1), x3)))
   A__SEL(s(x0), cons(x1, cons(s(z0), x3))) -> c4(A__SEL(mark(x0), cons(s(mark(z0)), x3)), MARK(cons(s(z0), x3)))
   A__SEL(s(x0), cons(x1, cons(0, x3))) -> c4(A__SEL(mark(x0), cons(0, x3)), MARK(cons(0, x3)))
   A__SEL(s(from(z0)), cons(x1, cons(x2, x3))) -> c4(A__SEL(a__from(mark(z0)), cons(mark(x2), x3)), MARK(cons(x2, x3)))
   A__SEL(s(sel(z0, z1)), cons(x1, cons(x2, x3))) -> c4(A__SEL(a__sel(mark(z0), mark(z1)), cons(mark(x2), x3)), MARK(cons(x2, x3)))
   A__SEL(s(s(z0)), cons(x1, cons(x2, x3))) -> c4(A__SEL(s(mark(z0)), cons(mark(x2), x3)), MARK(cons(x2, x3)))
   A__SEL(s(0), cons(x1, cons(x2, x3))) -> c4(A__SEL(0, cons(mark(x2), x3)), MARK(cons(x2, x3)))
   A__SEL(s(x0), cons(x1, cons(x2, x3))) -> c4(MARK(cons(x2, x3)))
   A__SEL(s(cons(z0, z1)), cons(x1, cons(x2, x3))) -> c4(MARK(cons(x2, x3)))
   A__SEL(s(from(from(z0))), cons(x1, x2)) -> c4(A__SEL(a__from(a__from(mark(z0))), mark(x2)), MARK(x2))
   A__SEL(s(from(sel(z0, z1))), cons(x1, x2)) -> c4(A__SEL(a__from(a__sel(mark(z0), mark(z1))), mark(x2)), MARK(x2))
   A__SEL(s(from(cons(z0, z1))), cons(x1, x2)) -> c4(A__SEL(a__from(cons(mark(z0), z1)), mark(x2)), MARK(x2))
   A__SEL(s(from(s(z0))), cons(x1, x2)) -> c4(A__SEL(a__from(s(mark(z0))), mark(x2)), MARK(x2))
   A__SEL(s(from(0)), cons(x1, x2)) -> c4(A__SEL(a__from(0), mark(x2)), MARK(x2))
   A__SEL(s(from(x0)), cons(x1, s(z0))) -> c4(MARK(s(z0)))
   A__SEL(s(from(x0)), cons(x1, x2)) -> c4(MARK(x2))
   A__SEL(s(sel(x0, from(z0))), cons(x2, x3)) -> c4(A__SEL(a__sel(mark(x0), a__from(mark(z0))), mark(x3)), MARK(x3))
   A__SEL(s(sel(x0, sel(z0, z1))), cons(x2, x3)) -> c4(A__SEL(a__sel(mark(x0), a__sel(mark(z0), mark(z1))), mark(x3)), MARK(x3))
   A__SEL(s(sel(x0, cons(z0, z1))), cons(x2, x3)) -> c4(A__SEL(a__sel(mark(x0), cons(mark(z0), z1)), mark(x3)), MARK(x3))
   A__SEL(s(sel(x0, s(z0))), cons(x2, x3)) -> c4(A__SEL(a__sel(mark(x0), s(mark(z0))), mark(x3)), MARK(x3))
   A__SEL(s(sel(x0, 0)), cons(x2, x3)) -> c4(A__SEL(a__sel(mark(x0), 0), mark(x3)), MARK(x3))
   A__SEL(s(sel(from(z0), x1)), cons(x2, x3)) -> c4(A__SEL(a__sel(a__from(mark(z0)), mark(x1)), mark(x3)), MARK(x3))
   A__SEL(s(sel(sel(z0, z1), x1)), cons(x2, x3)) -> c4(A__SEL(a__sel(a__sel(mark(z0), mark(z1)), mark(x1)), mark(x3)), MARK(x3))
   A__SEL(s(sel(cons(z0, z1), x1)), cons(x2, x3)) -> c4(A__SEL(a__sel(cons(mark(z0), z1), mark(x1)), mark(x3)), MARK(x3))
   A__SEL(s(sel(s(z0), x1)), cons(x2, x3)) -> c4(A__SEL(a__sel(s(mark(z0)), mark(x1)), mark(x3)), MARK(x3))
   A__SEL(s(sel(0, x1)), cons(x2, x3)) -> c4(A__SEL(a__sel(0, mark(x1)), mark(x3)), MARK(x3))
   A__SEL(s(sel(x0, x1)), cons(x2, s(z0))) -> c4(MARK(s(z0)))
   A__SEL(s(sel(x0, x1)), cons(x2, x3)) -> c4(MARK(x3))
   A__SEL(s(s(from(z0))), cons(x1, x2)) -> c4(A__SEL(s(a__from(mark(z0))), mark(x2)), MARK(x2))
   A__SEL(s(s(sel(z0, z1))), cons(x1, x2)) -> c4(A__SEL(s(a__sel(mark(z0), mark(z1))), mark(x2)), MARK(x2))
   A__SEL(s(s(cons(z0, z1))), cons(x1, x2)) -> c4(A__SEL(s(cons(mark(z0), z1)), mark(x2)), MARK(x2))
   A__SEL(s(s(s(z0))), cons(x1, x2)) -> c4(A__SEL(s(s(mark(z0))), mark(x2)), MARK(x2))
   A__SEL(s(s(0)), cons(x1, x2)) -> c4(A__SEL(s(0), mark(x2)), MARK(x2))
   A__SEL(s(s(x0)), cons(x1, s(z0))) -> c4(MARK(s(z0)))
   A__SEL(s(0), cons(x0, s(z0))) -> c4(MARK(s(z0)))
   MARK(sel(x0, from(x1))) -> c7(A__SEL(mark(x0), cons(mark(mark(x1)), from(s(mark(x1))))), MARK(x0))
   MARK(sel(x0, from(from(z0)))) -> c7(A__SEL(mark(x0), a__from(a__from(mark(z0)))), MARK(x0))
   MARK(sel(x0, from(sel(z0, z1)))) -> c7(A__SEL(mark(x0), a__from(a__sel(mark(z0), mark(z1)))), MARK(x0))
   MARK(sel(x0, from(cons(z0, z1)))) -> c7(A__SEL(mark(x0), a__from(cons(mark(z0), z1))), MARK(x0))
   MARK(sel(x0, from(s(z0)))) -> c7(A__SEL(mark(x0), a__from(s(mark(z0)))), MARK(x0))
   MARK(sel(x0, from(0))) -> c7(A__SEL(mark(x0), a__from(0)), MARK(x0))
   MARK(sel(from(z0), from(x1))) -> c7(A__SEL(a__from(mark(z0)), a__from(mark(x1))), MARK(from(z0)))
   MARK(sel(sel(z0, z1), from(x1))) -> c7(A__SEL(a__sel(mark(z0), mark(z1)), a__from(mark(x1))), MARK(sel(z0, z1)))
   MARK(sel(s(z0), from(x1))) -> c7(A__SEL(s(mark(z0)), a__from(mark(x1))), MARK(s(z0)))
   MARK(sel(x0, from(x1))) -> c7(MARK(x0))
   MARK(sel(cons(z0, z1), from(x1))) -> c7(MARK(cons(z0, z1)))
   MARK(sel(0, from(x1))) -> c7(A__SEL(0, a__from(mark(x1))))
   MARK(sel(x0, sel(x1, from(z0)))) -> c7(A__SEL(mark(x0), a__sel(mark(x1), a__from(mark(z0)))), MARK(x0))
   MARK(sel(x0, sel(x1, sel(z0, z1)))) -> c7(A__SEL(mark(x0), a__sel(mark(x1), a__sel(mark(z0), mark(z1)))), MARK(x0))
   MARK(sel(x0, sel(x1, cons(z0, z1)))) -> c7(A__SEL(mark(x0), a__sel(mark(x1), cons(mark(z0), z1))), MARK(x0))
   MARK(sel(x0, sel(x1, s(z0)))) -> c7(A__SEL(mark(x0), a__sel(mark(x1), s(mark(z0)))), MARK(x0))
   MARK(sel(x0, sel(x1, 0))) -> c7(A__SEL(mark(x0), a__sel(mark(x1), 0)), MARK(x0))
   MARK(sel(x0, sel(from(z0), x2))) -> c7(A__SEL(mark(x0), a__sel(a__from(mark(z0)), mark(x2))), MARK(x0))
   MARK(sel(x0, sel(sel(z0, z1), x2))) -> c7(A__SEL(mark(x0), a__sel(a__sel(mark(z0), mark(z1)), mark(x2))), MARK(x0))
   MARK(sel(x0, sel(cons(z0, z1), x2))) -> c7(A__SEL(mark(x0), a__sel(cons(mark(z0), z1), mark(x2))), MARK(x0))
   MARK(sel(x0, sel(s(z0), x2))) -> c7(A__SEL(mark(x0), a__sel(s(mark(z0)), mark(x2))), MARK(x0))
   MARK(sel(x0, sel(0, x2))) -> c7(A__SEL(mark(x0), a__sel(0, mark(x2))), MARK(x0))
   MARK(sel(from(z0), sel(x1, x2))) -> c7(A__SEL(a__from(mark(z0)), a__sel(mark(x1), mark(x2))), MARK(from(z0)))
   MARK(sel(sel(z0, z1), sel(x1, x2))) -> c7(A__SEL(a__sel(mark(z0), mark(z1)), a__sel(mark(x1), mark(x2))), MARK(sel(z0, z1)))
   MARK(sel(s(z0), sel(x1, x2))) -> c7(A__SEL(s(mark(z0)), a__sel(mark(x1), mark(x2))), MARK(s(z0)))
   MARK(sel(x0, sel(x1, x2))) -> c7(MARK(x0))
   MARK(sel(cons(z0, z1), sel(x1, x2))) -> c7(MARK(cons(z0, z1)))
   MARK(sel(0, sel(x1, x2))) -> c7(A__SEL(0, a__sel(mark(x1), mark(x2))))
   MARK(sel(x0, cons(from(z0), x2))) -> c7(A__SEL(mark(x0), cons(a__from(mark(z0)), x2)), MARK(x0))
   MARK(sel(x0, cons(sel(z0, z1), x2))) -> c7(A__SEL(mark(x0), cons(a__sel(mark(z0), mark(z1)), x2)), MARK(x0))
   MARK(sel(x0, cons(cons(z0, z1), x2))) -> c7(A__SEL(mark(x0), cons(cons(mark(z0), z1), x2)), MARK(x0))
   MARK(sel(x0, cons(s(z0), x2))) -> c7(A__SEL(mark(x0), cons(s(mark(z0)), x2)), MARK(x0))
   MARK(sel(x0, cons(0, x2))) -> c7(A__SEL(mark(x0), cons(0, x2)), MARK(x0))
   MARK(sel(from(z0), cons(x1, x2))) -> c7(A__SEL(a__from(mark(z0)), cons(mark(x1), x2)), MARK(from(z0)))
   MARK(sel(sel(z0, z1), cons(x1, x2))) -> c7(A__SEL(a__sel(mark(z0), mark(z1)), cons(mark(x1), x2)), MARK(sel(z0, z1)))
   MARK(sel(s(z0), cons(x1, x2))) -> c7(A__SEL(s(mark(z0)), cons(mark(x1), x2)), MARK(s(z0)))
   MARK(sel(cons(z0, z1), cons(x1, x2))) -> c7(MARK(cons(z0, z1)))
   MARK(sel(0, cons(x1, x2))) -> c7(A__SEL(0, cons(mark(x1), x2)))
   MARK(sel(from(from(z0)), x1)) -> c7(A__SEL(a__from(a__from(mark(z0))), mark(x1)), MARK(from(from(z0))))
   MARK(sel(from(sel(z0, z1)), x1)) -> c7(A__SEL(a__from(a__sel(mark(z0), mark(z1))), mark(x1)), MARK(from(sel(z0, z1))))
   MARK(sel(from(cons(z0, z1)), x1)) -> c7(A__SEL(a__from(cons(mark(z0), z1)), mark(x1)), MARK(from(cons(z0, z1))))
   MARK(sel(from(s(z0)), x1)) -> c7(A__SEL(a__from(s(mark(z0))), mark(x1)), MARK(from(s(z0))))
   MARK(sel(from(0), x1)) -> c7(A__SEL(a__from(0), mark(x1)), MARK(from(0)))
   MARK(sel(from(x0), x1)) -> c7(MARK(from(x0)))
   MARK(sel(from(x0), s(z0))) -> c7(MARK(from(x0)))
   MARK(sel(from(x0), 0)) -> c7(MARK(from(x0)))
   MARK(sel(sel(x0, from(z0)), x2)) -> c7(A__SEL(a__sel(mark(x0), a__from(mark(z0))), mark(x2)), MARK(sel(x0, from(z0))))
   MARK(sel(sel(x0, sel(z0, z1)), x2)) -> c7(A__SEL(a__sel(mark(x0), a__sel(mark(z0), mark(z1))), mark(x2)), MARK(sel(x0, sel(z0, z1))))
   MARK(sel(sel(x0, cons(z0, z1)), x2)) -> c7(A__SEL(a__sel(mark(x0), cons(mark(z0), z1)), mark(x2)), MARK(sel(x0, cons(z0, z1))))
   MARK(sel(sel(x0, s(z0)), x2)) -> c7(A__SEL(a__sel(mark(x0), s(mark(z0))), mark(x2)), MARK(sel(x0, s(z0))))
   MARK(sel(sel(x0, 0), x2)) -> c7(A__SEL(a__sel(mark(x0), 0), mark(x2)), MARK(sel(x0, 0)))
   MARK(sel(sel(from(z0), x1), x2)) -> c7(A__SEL(a__sel(a__from(mark(z0)), mark(x1)), mark(x2)), MARK(sel(from(z0), x1)))
   MARK(sel(sel(sel(z0, z1), x1), x2)) -> c7(A__SEL(a__sel(a__sel(mark(z0), mark(z1)), mark(x1)), mark(x2)), MARK(sel(sel(z0, z1), x1)))
   MARK(sel(sel(cons(z0, z1), x1), x2)) -> c7(A__SEL(a__sel(cons(mark(z0), z1), mark(x1)), mark(x2)), MARK(sel(cons(z0, z1), x1)))
   MARK(sel(sel(s(z0), x1), x2)) -> c7(A__SEL(a__sel(s(mark(z0)), mark(x1)), mark(x2)), MARK(sel(s(z0), x1)))
   MARK(sel(sel(0, x1), x2)) -> c7(A__SEL(a__sel(0, mark(x1)), mark(x2)), MARK(sel(0, x1)))
   MARK(sel(sel(x0, x1), s(z0))) -> c7(MARK(sel(x0, x1)))
   MARK(sel(sel(x0, x1), 0)) -> c7(MARK(sel(x0, x1)))
   MARK(sel(sel(x0, x1), x2)) -> c7(MARK(sel(x0, x1)))
   MARK(sel(s(from(z0)), x1)) -> c7(A__SEL(s(a__from(mark(z0))), mark(x1)), MARK(s(from(z0))))
   MARK(sel(s(sel(z0, z1)), x1)) -> c7(A__SEL(s(a__sel(mark(z0), mark(z1))), mark(x1)), MARK(s(sel(z0, z1))))
   MARK(sel(s(cons(z0, z1)), x1)) -> c7(A__SEL(s(cons(mark(z0), z1)), mark(x1)), MARK(s(cons(z0, z1))))
   MARK(sel(s(s(z0)), x1)) -> c7(A__SEL(s(s(mark(z0))), mark(x1)), MARK(s(s(z0))))
   MARK(sel(s(0), x1)) -> c7(A__SEL(s(0), mark(x1)), MARK(s(0)))
   MARK(sel(s(x0), x1)) -> c7(MARK(s(x0)))
   MARK(sel(s(x0), s(z0))) -> c7(MARK(s(x0)))
   MARK(sel(s(x0), 0)) -> c7(MARK(s(x0)))
   MARK(sel(x0, from(x1))) -> c8(A__SEL(mark(x0), cons(mark(mark(x1)), from(s(mark(x1))))), MARK(from(x1)))
   MARK(sel(x0, from(from(z0)))) -> c8(A__SEL(mark(x0), a__from(a__from(mark(z0)))), MARK(from(from(z0))))
   MARK(sel(x0, from(sel(z0, z1)))) -> c8(A__SEL(mark(x0), a__from(a__sel(mark(z0), mark(z1)))), MARK(from(sel(z0, z1))))
   MARK(sel(x0, from(cons(z0, z1)))) -> c8(A__SEL(mark(x0), a__from(cons(mark(z0), z1))), MARK(from(cons(z0, z1))))
   MARK(sel(x0, from(s(z0)))) -> c8(A__SEL(mark(x0), a__from(s(mark(z0)))), MARK(from(s(z0))))
   MARK(sel(x0, from(0))) -> c8(A__SEL(mark(x0), a__from(0)), MARK(from(0)))
   MARK(sel(from(z0), from(x1))) -> c8(A__SEL(a__from(mark(z0)), a__from(mark(x1))), MARK(from(x1)))
   MARK(sel(sel(z0, z1), from(x1))) -> c8(A__SEL(a__sel(mark(z0), mark(z1)), a__from(mark(x1))), MARK(from(x1)))
   MARK(sel(s(z0), from(x1))) -> c8(A__SEL(s(mark(z0)), a__from(mark(x1))), MARK(from(x1)))
   MARK(sel(0, from(x1))) -> c8(A__SEL(0, a__from(mark(x1))), MARK(from(x1)))
   MARK(sel(x0, from(x1))) -> c8(MARK(from(x1)))
   MARK(sel(cons(z0, z1), from(x1))) -> c8(MARK(from(x1)))
   MARK(sel(x0, sel(x1, from(z0)))) -> c8(A__SEL(mark(x0), a__sel(mark(x1), a__from(mark(z0)))), MARK(sel(x1, from(z0))))
   MARK(sel(x0, sel(x1, sel(z0, z1)))) -> c8(A__SEL(mark(x0), a__sel(mark(x1), a__sel(mark(z0), mark(z1)))), MARK(sel(x1, sel(z0, z1))))
   MARK(sel(x0, sel(x1, cons(z0, z1)))) -> c8(A__SEL(mark(x0), a__sel(mark(x1), cons(mark(z0), z1))), MARK(sel(x1, cons(z0, z1))))
   MARK(sel(x0, sel(x1, s(z0)))) -> c8(A__SEL(mark(x0), a__sel(mark(x1), s(mark(z0)))), MARK(sel(x1, s(z0))))
   MARK(sel(x0, sel(x1, 0))) -> c8(A__SEL(mark(x0), a__sel(mark(x1), 0)), MARK(sel(x1, 0)))
   MARK(sel(x0, sel(from(z0), x2))) -> c8(A__SEL(mark(x0), a__sel(a__from(mark(z0)), mark(x2))), MARK(sel(from(z0), x2)))
   MARK(sel(x0, sel(sel(z0, z1), x2))) -> c8(A__SEL(mark(x0), a__sel(a__sel(mark(z0), mark(z1)), mark(x2))), MARK(sel(sel(z0, z1), x2)))
   MARK(sel(x0, sel(cons(z0, z1), x2))) -> c8(A__SEL(mark(x0), a__sel(cons(mark(z0), z1), mark(x2))), MARK(sel(cons(z0, z1), x2)))
   MARK(sel(x0, sel(s(z0), x2))) -> c8(A__SEL(mark(x0), a__sel(s(mark(z0)), mark(x2))), MARK(sel(s(z0), x2)))
   MARK(sel(x0, sel(0, x2))) -> c8(A__SEL(mark(x0), a__sel(0, mark(x2))), MARK(sel(0, x2)))
   MARK(sel(from(z0), sel(x1, x2))) -> c8(A__SEL(a__from(mark(z0)), a__sel(mark(x1), mark(x2))), MARK(sel(x1, x2)))
   MARK(sel(sel(z0, z1), sel(x1, x2))) -> c8(A__SEL(a__sel(mark(z0), mark(z1)), a__sel(mark(x1), mark(x2))), MARK(sel(x1, x2)))
   MARK(sel(s(z0), sel(x1, x2))) -> c8(A__SEL(s(mark(z0)), a__sel(mark(x1), mark(x2))), MARK(sel(x1, x2)))
   MARK(sel(0, sel(x1, x2))) -> c8(A__SEL(0, a__sel(mark(x1), mark(x2))), MARK(sel(x1, x2)))
   MARK(sel(x0, sel(x1, x2))) -> c8(MARK(sel(x1, x2)))
   MARK(sel(cons(z0, z1), sel(x1, x2))) -> c8(MARK(sel(x1, x2)))
   MARK(sel(x0, cons(from(z0), x2))) -> c8(A__SEL(mark(x0), cons(a__from(mark(z0)), x2)), MARK(cons(from(z0), x2)))
   MARK(sel(x0, cons(sel(z0, z1), x2))) -> c8(A__SEL(mark(x0), cons(a__sel(mark(z0), mark(z1)), x2)), MARK(cons(sel(z0, z1), x2)))
   MARK(sel(x0, cons(cons(z0, z1), x2))) -> c8(A__SEL(mark(x0), cons(cons(mark(z0), z1), x2)), MARK(cons(cons(z0, z1), x2)))
   MARK(sel(x0, cons(s(z0), x2))) -> c8(A__SEL(mark(x0), cons(s(mark(z0)), x2)), MARK(cons(s(z0), x2)))
   MARK(sel(x0, cons(0, x2))) -> c8(A__SEL(mark(x0), cons(0, x2)), MARK(cons(0, x2)))
   MARK(sel(from(z0), cons(x1, x2))) -> c8(A__SEL(a__from(mark(z0)), cons(mark(x1), x2)), MARK(cons(x1, x2)))
   MARK(sel(sel(z0, z1), cons(x1, x2))) -> c8(A__SEL(a__sel(mark(z0), mark(z1)), cons(mark(x1), x2)), MARK(cons(x1, x2)))
   MARK(sel(s(z0), cons(x1, x2))) -> c8(A__SEL(s(mark(z0)), cons(mark(x1), x2)), MARK(cons(x1, x2)))
   MARK(sel(0, cons(x1, x2))) -> c8(A__SEL(0, cons(mark(x1), x2)), MARK(cons(x1, x2)))
   MARK(sel(x0, cons(x1, x2))) -> c8(MARK(cons(x1, x2)))
   MARK(sel(cons(z0, z1), cons(x1, x2))) -> c8(MARK(cons(x1, x2)))
   MARK(sel(from(from(z0)), x1)) -> c8(A__SEL(a__from(a__from(mark(z0))), mark(x1)), MARK(x1))
   MARK(sel(from(sel(z0, z1)), x1)) -> c8(A__SEL(a__from(a__sel(mark(z0), mark(z1))), mark(x1)), MARK(x1))
   MARK(sel(from(cons(z0, z1)), x1)) -> c8(A__SEL(a__from(cons(mark(z0), z1)), mark(x1)), MARK(x1))
   MARK(sel(from(s(z0)), x1)) -> c8(A__SEL(a__from(s(mark(z0))), mark(x1)), MARK(x1))
   MARK(sel(from(0), x1)) -> c8(A__SEL(a__from(0), mark(x1)), MARK(x1))
   MARK(sel(from(x0), s(z0))) -> c8(MARK(s(z0)))
   MARK(sel(from(x0), x1)) -> c8(MARK(x1))
S tuples:
   A__FROM(z0) -> c(MARK(z0))
   A__SEL(0, cons(z0, z1)) -> c2(MARK(z0))
   MARK(from(z0)) -> c6(A__FROM(mark(z0)), MARK(z0))
   MARK(cons(z0, z1)) -> c9(MARK(z0))
   MARK(s(z0)) -> c10(MARK(z0))
   A__SEL(s(x0), cons(x1, s(z0))) -> c3(MARK(x0))
   A__SEL(s(x0), cons(x1, 0)) -> c3(MARK(x0))
   A__SEL(s(cons(z0, z1)), cons(x1, x2)) -> c3(MARK(cons(z0, z1)))
   A__SEL(s(x0), cons(x1, s(z0))) -> c4(MARK(s(z0)))
   A__SEL(s(cons(z0, z1)), cons(x1, x2)) -> c4(MARK(x2))
   MARK(sel(x0, s(z0))) -> c7(MARK(x0))
   MARK(sel(x0, 0)) -> c7(MARK(x0))
   MARK(sel(cons(z0, z1), x1)) -> c7(MARK(cons(z0, z1)))
   MARK(sel(sel(z0, z1), x1)) -> c8(A__SEL(a__sel(mark(z0), mark(z1)), mark(x1)), MARK(x1))
   MARK(sel(s(z0), x1)) -> c8(A__SEL(s(mark(z0)), mark(x1)), MARK(x1))
   MARK(sel(0, x1)) -> c8(A__SEL(0, mark(x1)), MARK(x1))
   MARK(sel(x0, s(z0))) -> c8(MARK(s(z0)))
   MARK(sel(cons(z0, z1), x1)) -> c8(MARK(x1))
   A__SEL(s(x0), cons(x1, from(x2))) -> c3(A__SEL(mark(x0), cons(mark(mark(x2)), from(s(mark(x2))))), MARK(x0))
   A__SEL(s(x0), cons(x1, from(from(z0)))) -> c3(A__SEL(mark(x0), a__from(a__from(mark(z0)))), MARK(x0))
   A__SEL(s(x0), cons(x1, from(sel(z0, z1)))) -> c3(A__SEL(mark(x0), a__from(a__sel(mark(z0), mark(z1)))), MARK(x0))
   A__SEL(s(x0), cons(x1, from(cons(z0, z1)))) -> c3(A__SEL(mark(x0), a__from(cons(mark(z0), z1))), MARK(x0))
   A__SEL(s(x0), cons(x1, from(s(z0)))) -> c3(A__SEL(mark(x0), a__from(s(mark(z0)))), MARK(x0))
   A__SEL(s(x0), cons(x1, from(0))) -> c3(A__SEL(mark(x0), a__from(0)), MARK(x0))
   A__SEL(s(from(z0)), cons(x1, from(x2))) -> c3(A__SEL(a__from(mark(z0)), a__from(mark(x2))), MARK(from(z0)))
   A__SEL(s(sel(z0, z1)), cons(x1, from(x2))) -> c3(A__SEL(a__sel(mark(z0), mark(z1)), a__from(mark(x2))), MARK(sel(z0, z1)))
   A__SEL(s(s(z0)), cons(x1, from(x2))) -> c3(A__SEL(s(mark(z0)), a__from(mark(x2))), MARK(s(z0)))
   A__SEL(s(x0), cons(x1, from(x2))) -> c3(MARK(x0))
   A__SEL(s(cons(z0, z1)), cons(x1, from(x2))) -> c3(MARK(cons(z0, z1)))
   A__SEL(s(0), cons(x1, from(x2))) -> c3(A__SEL(0, a__from(mark(x2))))
   A__SEL(s(x0), cons(x1, sel(x2, from(z0)))) -> c3(A__SEL(mark(x0), a__sel(mark(x2), a__from(mark(z0)))), MARK(x0))
   A__SEL(s(x0), cons(x1, sel(x2, sel(z0, z1)))) -> c3(A__SEL(mark(x0), a__sel(mark(x2), a__sel(mark(z0), mark(z1)))), MARK(x0))
   A__SEL(s(x0), cons(x1, sel(x2, cons(z0, z1)))) -> c3(A__SEL(mark(x0), a__sel(mark(x2), cons(mark(z0), z1))), MARK(x0))
   A__SEL(s(x0), cons(x1, sel(x2, s(z0)))) -> c3(A__SEL(mark(x0), a__sel(mark(x2), s(mark(z0)))), MARK(x0))
   A__SEL(s(x0), cons(x1, sel(x2, 0))) -> c3(A__SEL(mark(x0), a__sel(mark(x2), 0)), MARK(x0))
   A__SEL(s(x0), cons(x1, sel(from(z0), x3))) -> c3(A__SEL(mark(x0), a__sel(a__from(mark(z0)), mark(x3))), MARK(x0))
   A__SEL(s(x0), cons(x1, sel(sel(z0, z1), x3))) -> c3(A__SEL(mark(x0), a__sel(a__sel(mark(z0), mark(z1)), mark(x3))), MARK(x0))
   A__SEL(s(x0), cons(x1, sel(cons(z0, z1), x3))) -> c3(A__SEL(mark(x0), a__sel(cons(mark(z0), z1), mark(x3))), MARK(x0))
   A__SEL(s(x0), cons(x1, sel(s(z0), x3))) -> c3(A__SEL(mark(x0), a__sel(s(mark(z0)), mark(x3))), MARK(x0))
   A__SEL(s(x0), cons(x1, sel(0, x3))) -> c3(A__SEL(mark(x0), a__sel(0, mark(x3))), MARK(x0))
   A__SEL(s(from(z0)), cons(x1, sel(x2, x3))) -> c3(A__SEL(a__from(mark(z0)), a__sel(mark(x2), mark(x3))), MARK(from(z0)))
   A__SEL(s(sel(z0, z1)), cons(x1, sel(x2, x3))) -> c3(A__SEL(a__sel(mark(z0), mark(z1)), a__sel(mark(x2), mark(x3))), MARK(sel(z0, z1)))
   A__SEL(s(s(z0)), cons(x1, sel(x2, x3))) -> c3(A__SEL(s(mark(z0)), a__sel(mark(x2), mark(x3))), MARK(s(z0)))
   A__SEL(s(x0), cons(x1, sel(x2, x3))) -> c3(MARK(x0))
   A__SEL(s(cons(z0, z1)), cons(x1, sel(x2, x3))) -> c3(MARK(cons(z0, z1)))
   A__SEL(s(0), cons(x1, sel(x2, x3))) -> c3(A__SEL(0, a__sel(mark(x2), mark(x3))))
   A__SEL(s(x0), cons(x1, cons(from(z0), x3))) -> c3(A__SEL(mark(x0), cons(a__from(mark(z0)), x3)), MARK(x0))
   A__SEL(s(x0), cons(x1, cons(sel(z0, z1), x3))) -> c3(A__SEL(mark(x0), cons(a__sel(mark(z0), mark(z1)), x3)), MARK(x0))
   A__SEL(s(x0), cons(x1, cons(cons(z0, z1), x3))) -> c3(A__SEL(mark(x0), cons(cons(mark(z0), z1), x3)), MARK(x0))
   A__SEL(s(x0), cons(x1, cons(s(z0), x3))) -> c3(A__SEL(mark(x0), cons(s(mark(z0)), x3)), MARK(x0))
   A__SEL(s(x0), cons(x1, cons(0, x3))) -> c3(A__SEL(mark(x0), cons(0, x3)), MARK(x0))
   A__SEL(s(from(z0)), cons(x1, cons(x2, x3))) -> c3(A__SEL(a__from(mark(z0)), cons(mark(x2), x3)), MARK(from(z0)))
   A__SEL(s(sel(z0, z1)), cons(x1, cons(x2, x3))) -> c3(A__SEL(a__sel(mark(z0), mark(z1)), cons(mark(x2), x3)), MARK(sel(z0, z1)))
   A__SEL(s(s(z0)), cons(x1, cons(x2, x3))) -> c3(A__SEL(s(mark(z0)), cons(mark(x2), x3)), MARK(s(z0)))
   A__SEL(s(cons(z0, z1)), cons(x1, cons(x2, x3))) -> c3(MARK(cons(z0, z1)))
   A__SEL(s(0), cons(x1, cons(x2, x3))) -> c3(A__SEL(0, cons(mark(x2), x3)))
   A__SEL(s(from(from(z0))), cons(x1, x2)) -> c3(A__SEL(a__from(a__from(mark(z0))), mark(x2)), MARK(from(from(z0))))
   A__SEL(s(from(sel(z0, z1))), cons(x1, x2)) -> c3(A__SEL(a__from(a__sel(mark(z0), mark(z1))), mark(x2)), MARK(from(sel(z0, z1))))
   A__SEL(s(from(cons(z0, z1))), cons(x1, x2)) -> c3(A__SEL(a__from(cons(mark(z0), z1)), mark(x2)), MARK(from(cons(z0, z1))))
   A__SEL(s(from(s(z0))), cons(x1, x2)) -> c3(A__SEL(a__from(s(mark(z0))), mark(x2)), MARK(from(s(z0))))
   A__SEL(s(from(0)), cons(x1, x2)) -> c3(A__SEL(a__from(0), mark(x2)), MARK(from(0)))
   A__SEL(s(from(x0)), cons(x1, x2)) -> c3(MARK(from(x0)))
   A__SEL(s(from(x0)), cons(x1, s(z0))) -> c3(MARK(from(x0)))
   A__SEL(s(from(x0)), cons(x1, 0)) -> c3(MARK(from(x0)))
   A__SEL(s(sel(x0, from(z0))), cons(x2, x3)) -> c3(A__SEL(a__sel(mark(x0), a__from(mark(z0))), mark(x3)), MARK(sel(x0, from(z0))))
   A__SEL(s(sel(x0, sel(z0, z1))), cons(x2, x3)) -> c3(A__SEL(a__sel(mark(x0), a__sel(mark(z0), mark(z1))), mark(x3)), MARK(sel(x0, sel(z0, z1))))
   A__SEL(s(sel(x0, cons(z0, z1))), cons(x2, x3)) -> c3(A__SEL(a__sel(mark(x0), cons(mark(z0), z1)), mark(x3)), MARK(sel(x0, cons(z0, z1))))
   A__SEL(s(sel(x0, s(z0))), cons(x2, x3)) -> c3(A__SEL(a__sel(mark(x0), s(mark(z0))), mark(x3)), MARK(sel(x0, s(z0))))
   A__SEL(s(sel(x0, 0)), cons(x2, x3)) -> c3(A__SEL(a__sel(mark(x0), 0), mark(x3)), MARK(sel(x0, 0)))
   A__SEL(s(sel(from(z0), x1)), cons(x2, x3)) -> c3(A__SEL(a__sel(a__from(mark(z0)), mark(x1)), mark(x3)), MARK(sel(from(z0), x1)))
   A__SEL(s(sel(sel(z0, z1), x1)), cons(x2, x3)) -> c3(A__SEL(a__sel(a__sel(mark(z0), mark(z1)), mark(x1)), mark(x3)), MARK(sel(sel(z0, z1), x1)))
   A__SEL(s(sel(cons(z0, z1), x1)), cons(x2, x3)) -> c3(A__SEL(a__sel(cons(mark(z0), z1), mark(x1)), mark(x3)), MARK(sel(cons(z0, z1), x1)))
   A__SEL(s(sel(s(z0), x1)), cons(x2, x3)) -> c3(A__SEL(a__sel(s(mark(z0)), mark(x1)), mark(x3)), MARK(sel(s(z0), x1)))
   A__SEL(s(sel(0, x1)), cons(x2, x3)) -> c3(A__SEL(a__sel(0, mark(x1)), mark(x3)), MARK(sel(0, x1)))
   A__SEL(s(sel(x0, x1)), cons(x2, s(z0))) -> c3(MARK(sel(x0, x1)))
   A__SEL(s(sel(x0, x1)), cons(x2, 0)) -> c3(MARK(sel(x0, x1)))
   A__SEL(s(sel(x0, x1)), cons(x2, x3)) -> c3(MARK(sel(x0, x1)))
   A__SEL(s(s(from(z0))), cons(x1, x2)) -> c3(A__SEL(s(a__from(mark(z0))), mark(x2)), MARK(s(from(z0))))
   A__SEL(s(s(sel(z0, z1))), cons(x1, x2)) -> c3(A__SEL(s(a__sel(mark(z0), mark(z1))), mark(x2)), MARK(s(sel(z0, z1))))
   A__SEL(s(s(cons(z0, z1))), cons(x1, x2)) -> c3(A__SEL(s(cons(mark(z0), z1)), mark(x2)), MARK(s(cons(z0, z1))))
   A__SEL(s(s(s(z0))), cons(x1, x2)) -> c3(A__SEL(s(s(mark(z0))), mark(x2)), MARK(s(s(z0))))
   A__SEL(s(s(0)), cons(x1, x2)) -> c3(A__SEL(s(0), mark(x2)), MARK(s(0)))
   A__SEL(s(s(x0)), cons(x1, x2)) -> c3(MARK(s(x0)))
   A__SEL(s(s(x0)), cons(x1, s(z0))) -> c3(MARK(s(x0)))
   A__SEL(s(s(x0)), cons(x1, 0)) -> c3(MARK(s(x0)))
   A__SEL(s(x0), cons(x1, from(x2))) -> c4(A__SEL(mark(x0), cons(mark(mark(x2)), from(s(mark(x2))))), MARK(from(x2)))
   A__SEL(s(x0), cons(x1, from(from(z0)))) -> c4(A__SEL(mark(x0), a__from(a__from(mark(z0)))), MARK(from(from(z0))))
   A__SEL(s(x0), cons(x1, from(sel(z0, z1)))) -> c4(A__SEL(mark(x0), a__from(a__sel(mark(z0), mark(z1)))), MARK(from(sel(z0, z1))))
   A__SEL(s(x0), cons(x1, from(cons(z0, z1)))) -> c4(A__SEL(mark(x0), a__from(cons(mark(z0), z1))), MARK(from(cons(z0, z1))))
   A__SEL(s(x0), cons(x1, from(s(z0)))) -> c4(A__SEL(mark(x0), a__from(s(mark(z0)))), MARK(from(s(z0))))
   A__SEL(s(x0), cons(x1, from(0))) -> c4(A__SEL(mark(x0), a__from(0)), MARK(from(0)))
   A__SEL(s(from(z0)), cons(x1, from(x2))) -> c4(A__SEL(a__from(mark(z0)), a__from(mark(x2))), MARK(from(x2)))
   A__SEL(s(sel(z0, z1)), cons(x1, from(x2))) -> c4(A__SEL(a__sel(mark(z0), mark(z1)), a__from(mark(x2))), MARK(from(x2)))
   A__SEL(s(s(z0)), cons(x1, from(x2))) -> c4(A__SEL(s(mark(z0)), a__from(mark(x2))), MARK(from(x2)))
   A__SEL(s(0), cons(x1, from(x2))) -> c4(A__SEL(0, a__from(mark(x2))), MARK(from(x2)))
   A__SEL(s(x0), cons(x1, from(x2))) -> c4(MARK(from(x2)))
   A__SEL(s(cons(z0, z1)), cons(x1, from(x2))) -> c4(MARK(from(x2)))
   A__SEL(s(x0), cons(x1, sel(x2, from(z0)))) -> c4(A__SEL(mark(x0), a__sel(mark(x2), a__from(mark(z0)))), MARK(sel(x2, from(z0))))
   A__SEL(s(x0), cons(x1, sel(x2, sel(z0, z1)))) -> c4(A__SEL(mark(x0), a__sel(mark(x2), a__sel(mark(z0), mark(z1)))), MARK(sel(x2, sel(z0, z1))))
   A__SEL(s(x0), cons(x1, sel(x2, cons(z0, z1)))) -> c4(A__SEL(mark(x0), a__sel(mark(x2), cons(mark(z0), z1))), MARK(sel(x2, cons(z0, z1))))
   A__SEL(s(x0), cons(x1, sel(x2, s(z0)))) -> c4(A__SEL(mark(x0), a__sel(mark(x2), s(mark(z0)))), MARK(sel(x2, s(z0))))
   A__SEL(s(x0), cons(x1, sel(x2, 0))) -> c4(A__SEL(mark(x0), a__sel(mark(x2), 0)), MARK(sel(x2, 0)))
   A__SEL(s(x0), cons(x1, sel(from(z0), x3))) -> c4(A__SEL(mark(x0), a__sel(a__from(mark(z0)), mark(x3))), MARK(sel(from(z0), x3)))
   A__SEL(s(x0), cons(x1, sel(sel(z0, z1), x3))) -> c4(A__SEL(mark(x0), a__sel(a__sel(mark(z0), mark(z1)), mark(x3))), MARK(sel(sel(z0, z1), x3)))
   A__SEL(s(x0), cons(x1, sel(cons(z0, z1), x3))) -> c4(A__SEL(mark(x0), a__sel(cons(mark(z0), z1), mark(x3))), MARK(sel(cons(z0, z1), x3)))
   A__SEL(s(x0), cons(x1, sel(s(z0), x3))) -> c4(A__SEL(mark(x0), a__sel(s(mark(z0)), mark(x3))), MARK(sel(s(z0), x3)))
   A__SEL(s(x0), cons(x1, sel(0, x3))) -> c4(A__SEL(mark(x0), a__sel(0, mark(x3))), MARK(sel(0, x3)))
   A__SEL(s(from(z0)), cons(x1, sel(x2, x3))) -> c4(A__SEL(a__from(mark(z0)), a__sel(mark(x2), mark(x3))), MARK(sel(x2, x3)))
   A__SEL(s(sel(z0, z1)), cons(x1, sel(x2, x3))) -> c4(A__SEL(a__sel(mark(z0), mark(z1)), a__sel(mark(x2), mark(x3))), MARK(sel(x2, x3)))
   A__SEL(s(s(z0)), cons(x1, sel(x2, x3))) -> c4(A__SEL(s(mark(z0)), a__sel(mark(x2), mark(x3))), MARK(sel(x2, x3)))
   A__SEL(s(0), cons(x1, sel(x2, x3))) -> c4(A__SEL(0, a__sel(mark(x2), mark(x3))), MARK(sel(x2, x3)))
   A__SEL(s(x0), cons(x1, sel(x2, x3))) -> c4(MARK(sel(x2, x3)))
   A__SEL(s(cons(z0, z1)), cons(x1, sel(x2, x3))) -> c4(MARK(sel(x2, x3)))
   A__SEL(s(x0), cons(x1, cons(from(z0), x3))) -> c4(A__SEL(mark(x0), cons(a__from(mark(z0)), x3)), MARK(cons(from(z0), x3)))
   A__SEL(s(x0), cons(x1, cons(sel(z0, z1), x3))) -> c4(A__SEL(mark(x0), cons(a__sel(mark(z0), mark(z1)), x3)), MARK(cons(sel(z0, z1), x3)))
   A__SEL(s(x0), cons(x1, cons(cons(z0, z1), x3))) -> c4(A__SEL(mark(x0), cons(cons(mark(z0), z1), x3)), MARK(cons(cons(z0, z1), x3)))
   A__SEL(s(x0), cons(x1, cons(s(z0), x3))) -> c4(A__SEL(mark(x0), cons(s(mark(z0)), x3)), MARK(cons(s(z0), x3)))
   A__SEL(s(x0), cons(x1, cons(0, x3))) -> c4(A__SEL(mark(x0), cons(0, x3)), MARK(cons(0, x3)))
   A__SEL(s(from(z0)), cons(x1, cons(x2, x3))) -> c4(A__SEL(a__from(mark(z0)), cons(mark(x2), x3)), MARK(cons(x2, x3)))
   A__SEL(s(sel(z0, z1)), cons(x1, cons(x2, x3))) -> c4(A__SEL(a__sel(mark(z0), mark(z1)), cons(mark(x2), x3)), MARK(cons(x2, x3)))
   A__SEL(s(s(z0)), cons(x1, cons(x2, x3))) -> c4(A__SEL(s(mark(z0)), cons(mark(x2), x3)), MARK(cons(x2, x3)))
   A__SEL(s(0), cons(x1, cons(x2, x3))) -> c4(A__SEL(0, cons(mark(x2), x3)), MARK(cons(x2, x3)))
   A__SEL(s(x0), cons(x1, cons(x2, x3))) -> c4(MARK(cons(x2, x3)))
   A__SEL(s(cons(z0, z1)), cons(x1, cons(x2, x3))) -> c4(MARK(cons(x2, x3)))
   A__SEL(s(from(from(z0))), cons(x1, x2)) -> c4(A__SEL(a__from(a__from(mark(z0))), mark(x2)), MARK(x2))
   A__SEL(s(from(sel(z0, z1))), cons(x1, x2)) -> c4(A__SEL(a__from(a__sel(mark(z0), mark(z1))), mark(x2)), MARK(x2))
   A__SEL(s(from(cons(z0, z1))), cons(x1, x2)) -> c4(A__SEL(a__from(cons(mark(z0), z1)), mark(x2)), MARK(x2))
   A__SEL(s(from(s(z0))), cons(x1, x2)) -> c4(A__SEL(a__from(s(mark(z0))), mark(x2)), MARK(x2))
   A__SEL(s(from(0)), cons(x1, x2)) -> c4(A__SEL(a__from(0), mark(x2)), MARK(x2))
   A__SEL(s(from(x0)), cons(x1, s(z0))) -> c4(MARK(s(z0)))
   A__SEL(s(from(x0)), cons(x1, x2)) -> c4(MARK(x2))
   A__SEL(s(sel(x0, from(z0))), cons(x2, x3)) -> c4(A__SEL(a__sel(mark(x0), a__from(mark(z0))), mark(x3)), MARK(x3))
   A__SEL(s(sel(x0, sel(z0, z1))), cons(x2, x3)) -> c4(A__SEL(a__sel(mark(x0), a__sel(mark(z0), mark(z1))), mark(x3)), MARK(x3))
   A__SEL(s(sel(x0, cons(z0, z1))), cons(x2, x3)) -> c4(A__SEL(a__sel(mark(x0), cons(mark(z0), z1)), mark(x3)), MARK(x3))
   A__SEL(s(sel(x0, s(z0))), cons(x2, x3)) -> c4(A__SEL(a__sel(mark(x0), s(mark(z0))), mark(x3)), MARK(x3))
   A__SEL(s(sel(x0, 0)), cons(x2, x3)) -> c4(A__SEL(a__sel(mark(x0), 0), mark(x3)), MARK(x3))
   A__SEL(s(sel(from(z0), x1)), cons(x2, x3)) -> c4(A__SEL(a__sel(a__from(mark(z0)), mark(x1)), mark(x3)), MARK(x3))
   A__SEL(s(sel(sel(z0, z1), x1)), cons(x2, x3)) -> c4(A__SEL(a__sel(a__sel(mark(z0), mark(z1)), mark(x1)), mark(x3)), MARK(x3))
   A__SEL(s(sel(cons(z0, z1), x1)), cons(x2, x3)) -> c4(A__SEL(a__sel(cons(mark(z0), z1), mark(x1)), mark(x3)), MARK(x3))
   A__SEL(s(sel(s(z0), x1)), cons(x2, x3)) -> c4(A__SEL(a__sel(s(mark(z0)), mark(x1)), mark(x3)), MARK(x3))
   A__SEL(s(sel(0, x1)), cons(x2, x3)) -> c4(A__SEL(a__sel(0, mark(x1)), mark(x3)), MARK(x3))
   A__SEL(s(sel(x0, x1)), cons(x2, s(z0))) -> c4(MARK(s(z0)))
   A__SEL(s(sel(x0, x1)), cons(x2, x3)) -> c4(MARK(x3))
   A__SEL(s(s(from(z0))), cons(x1, x2)) -> c4(A__SEL(s(a__from(mark(z0))), mark(x2)), MARK(x2))
   A__SEL(s(s(sel(z0, z1))), cons(x1, x2)) -> c4(A__SEL(s(a__sel(mark(z0), mark(z1))), mark(x2)), MARK(x2))
   A__SEL(s(s(cons(z0, z1))), cons(x1, x2)) -> c4(A__SEL(s(cons(mark(z0), z1)), mark(x2)), MARK(x2))
   A__SEL(s(s(s(z0))), cons(x1, x2)) -> c4(A__SEL(s(s(mark(z0))), mark(x2)), MARK(x2))
   A__SEL(s(s(0)), cons(x1, x2)) -> c4(A__SEL(s(0), mark(x2)), MARK(x2))
   A__SEL(s(s(x0)), cons(x1, s(z0))) -> c4(MARK(s(z0)))
   A__SEL(s(0), cons(x0, s(z0))) -> c4(MARK(s(z0)))
   MARK(sel(x0, from(x1))) -> c7(A__SEL(mark(x0), cons(mark(mark(x1)), from(s(mark(x1))))), MARK(x0))
   MARK(sel(x0, from(from(z0)))) -> c7(A__SEL(mark(x0), a__from(a__from(mark(z0)))), MARK(x0))
   MARK(sel(x0, from(sel(z0, z1)))) -> c7(A__SEL(mark(x0), a__from(a__sel(mark(z0), mark(z1)))), MARK(x0))
   MARK(sel(x0, from(cons(z0, z1)))) -> c7(A__SEL(mark(x0), a__from(cons(mark(z0), z1))), MARK(x0))
   MARK(sel(x0, from(s(z0)))) -> c7(A__SEL(mark(x0), a__from(s(mark(z0)))), MARK(x0))
   MARK(sel(x0, from(0))) -> c7(A__SEL(mark(x0), a__from(0)), MARK(x0))
   MARK(sel(from(z0), from(x1))) -> c7(A__SEL(a__from(mark(z0)), a__from(mark(x1))), MARK(from(z0)))
   MARK(sel(sel(z0, z1), from(x1))) -> c7(A__SEL(a__sel(mark(z0), mark(z1)), a__from(mark(x1))), MARK(sel(z0, z1)))
   MARK(sel(s(z0), from(x1))) -> c7(A__SEL(s(mark(z0)), a__from(mark(x1))), MARK(s(z0)))
   MARK(sel(x0, from(x1))) -> c7(MARK(x0))
   MARK(sel(cons(z0, z1), from(x1))) -> c7(MARK(cons(z0, z1)))
   MARK(sel(0, from(x1))) -> c7(A__SEL(0, a__from(mark(x1))))
   MARK(sel(x0, sel(x1, from(z0)))) -> c7(A__SEL(mark(x0), a__sel(mark(x1), a__from(mark(z0)))), MARK(x0))
   MARK(sel(x0, sel(x1, sel(z0, z1)))) -> c7(A__SEL(mark(x0), a__sel(mark(x1), a__sel(mark(z0), mark(z1)))), MARK(x0))
   MARK(sel(x0, sel(x1, cons(z0, z1)))) -> c7(A__SEL(mark(x0), a__sel(mark(x1), cons(mark(z0), z1))), MARK(x0))
   MARK(sel(x0, sel(x1, s(z0)))) -> c7(A__SEL(mark(x0), a__sel(mark(x1), s(mark(z0)))), MARK(x0))
   MARK(sel(x0, sel(x1, 0))) -> c7(A__SEL(mark(x0), a__sel(mark(x1), 0)), MARK(x0))
   MARK(sel(x0, sel(from(z0), x2))) -> c7(A__SEL(mark(x0), a__sel(a__from(mark(z0)), mark(x2))), MARK(x0))
   MARK(sel(x0, sel(sel(z0, z1), x2))) -> c7(A__SEL(mark(x0), a__sel(a__sel(mark(z0), mark(z1)), mark(x2))), MARK(x0))
   MARK(sel(x0, sel(cons(z0, z1), x2))) -> c7(A__SEL(mark(x0), a__sel(cons(mark(z0), z1), mark(x2))), MARK(x0))
   MARK(sel(x0, sel(s(z0), x2))) -> c7(A__SEL(mark(x0), a__sel(s(mark(z0)), mark(x2))), MARK(x0))
   MARK(sel(x0, sel(0, x2))) -> c7(A__SEL(mark(x0), a__sel(0, mark(x2))), MARK(x0))
   MARK(sel(from(z0), sel(x1, x2))) -> c7(A__SEL(a__from(mark(z0)), a__sel(mark(x1), mark(x2))), MARK(from(z0)))
   MARK(sel(sel(z0, z1), sel(x1, x2))) -> c7(A__SEL(a__sel(mark(z0), mark(z1)), a__sel(mark(x1), mark(x2))), MARK(sel(z0, z1)))
   MARK(sel(s(z0), sel(x1, x2))) -> c7(A__SEL(s(mark(z0)), a__sel(mark(x1), mark(x2))), MARK(s(z0)))
   MARK(sel(x0, sel(x1, x2))) -> c7(MARK(x0))
   MARK(sel(cons(z0, z1), sel(x1, x2))) -> c7(MARK(cons(z0, z1)))
   MARK(sel(0, sel(x1, x2))) -> c7(A__SEL(0, a__sel(mark(x1), mark(x2))))
   MARK(sel(x0, cons(from(z0), x2))) -> c7(A__SEL(mark(x0), cons(a__from(mark(z0)), x2)), MARK(x0))
   MARK(sel(x0, cons(sel(z0, z1), x2))) -> c7(A__SEL(mark(x0), cons(a__sel(mark(z0), mark(z1)), x2)), MARK(x0))
   MARK(sel(x0, cons(cons(z0, z1), x2))) -> c7(A__SEL(mark(x0), cons(cons(mark(z0), z1), x2)), MARK(x0))
   MARK(sel(x0, cons(s(z0), x2))) -> c7(A__SEL(mark(x0), cons(s(mark(z0)), x2)), MARK(x0))
   MARK(sel(x0, cons(0, x2))) -> c7(A__SEL(mark(x0), cons(0, x2)), MARK(x0))
   MARK(sel(from(z0), cons(x1, x2))) -> c7(A__SEL(a__from(mark(z0)), cons(mark(x1), x2)), MARK(from(z0)))
   MARK(sel(sel(z0, z1), cons(x1, x2))) -> c7(A__SEL(a__sel(mark(z0), mark(z1)), cons(mark(x1), x2)), MARK(sel(z0, z1)))
   MARK(sel(s(z0), cons(x1, x2))) -> c7(A__SEL(s(mark(z0)), cons(mark(x1), x2)), MARK(s(z0)))
   MARK(sel(cons(z0, z1), cons(x1, x2))) -> c7(MARK(cons(z0, z1)))
   MARK(sel(0, cons(x1, x2))) -> c7(A__SEL(0, cons(mark(x1), x2)))
   MARK(sel(from(from(z0)), x1)) -> c7(A__SEL(a__from(a__from(mark(z0))), mark(x1)), MARK(from(from(z0))))
   MARK(sel(from(sel(z0, z1)), x1)) -> c7(A__SEL(a__from(a__sel(mark(z0), mark(z1))), mark(x1)), MARK(from(sel(z0, z1))))
   MARK(sel(from(cons(z0, z1)), x1)) -> c7(A__SEL(a__from(cons(mark(z0), z1)), mark(x1)), MARK(from(cons(z0, z1))))
   MARK(sel(from(s(z0)), x1)) -> c7(A__SEL(a__from(s(mark(z0))), mark(x1)), MARK(from(s(z0))))
   MARK(sel(from(0), x1)) -> c7(A__SEL(a__from(0), mark(x1)), MARK(from(0)))
   MARK(sel(from(x0), x1)) -> c7(MARK(from(x0)))
   MARK(sel(from(x0), s(z0))) -> c7(MARK(from(x0)))
   MARK(sel(from(x0), 0)) -> c7(MARK(from(x0)))
   MARK(sel(sel(x0, from(z0)), x2)) -> c7(A__SEL(a__sel(mark(x0), a__from(mark(z0))), mark(x2)), MARK(sel(x0, from(z0))))
   MARK(sel(sel(x0, sel(z0, z1)), x2)) -> c7(A__SEL(a__sel(mark(x0), a__sel(mark(z0), mark(z1))), mark(x2)), MARK(sel(x0, sel(z0, z1))))
   MARK(sel(sel(x0, cons(z0, z1)), x2)) -> c7(A__SEL(a__sel(mark(x0), cons(mark(z0), z1)), mark(x2)), MARK(sel(x0, cons(z0, z1))))
   MARK(sel(sel(x0, s(z0)), x2)) -> c7(A__SEL(a__sel(mark(x0), s(mark(z0))), mark(x2)), MARK(sel(x0, s(z0))))
   MARK(sel(sel(x0, 0), x2)) -> c7(A__SEL(a__sel(mark(x0), 0), mark(x2)), MARK(sel(x0, 0)))
   MARK(sel(sel(from(z0), x1), x2)) -> c7(A__SEL(a__sel(a__from(mark(z0)), mark(x1)), mark(x2)), MARK(sel(from(z0), x1)))
   MARK(sel(sel(sel(z0, z1), x1), x2)) -> c7(A__SEL(a__sel(a__sel(mark(z0), mark(z1)), mark(x1)), mark(x2)), MARK(sel(sel(z0, z1), x1)))
   MARK(sel(sel(cons(z0, z1), x1), x2)) -> c7(A__SEL(a__sel(cons(mark(z0), z1), mark(x1)), mark(x2)), MARK(sel(cons(z0, z1), x1)))
   MARK(sel(sel(s(z0), x1), x2)) -> c7(A__SEL(a__sel(s(mark(z0)), mark(x1)), mark(x2)), MARK(sel(s(z0), x1)))
   MARK(sel(sel(0, x1), x2)) -> c7(A__SEL(a__sel(0, mark(x1)), mark(x2)), MARK(sel(0, x1)))
   MARK(sel(sel(x0, x1), s(z0))) -> c7(MARK(sel(x0, x1)))
   MARK(sel(sel(x0, x1), 0)) -> c7(MARK(sel(x0, x1)))
   MARK(sel(sel(x0, x1), x2)) -> c7(MARK(sel(x0, x1)))
   MARK(sel(s(from(z0)), x1)) -> c7(A__SEL(s(a__from(mark(z0))), mark(x1)), MARK(s(from(z0))))
   MARK(sel(s(sel(z0, z1)), x1)) -> c7(A__SEL(s(a__sel(mark(z0), mark(z1))), mark(x1)), MARK(s(sel(z0, z1))))
   MARK(sel(s(cons(z0, z1)), x1)) -> c7(A__SEL(s(cons(mark(z0), z1)), mark(x1)), MARK(s(cons(z0, z1))))
   MARK(sel(s(s(z0)), x1)) -> c7(A__SEL(s(s(mark(z0))), mark(x1)), MARK(s(s(z0))))
   MARK(sel(s(0), x1)) -> c7(A__SEL(s(0), mark(x1)), MARK(s(0)))
   MARK(sel(s(x0), x1)) -> c7(MARK(s(x0)))
   MARK(sel(s(x0), s(z0))) -> c7(MARK(s(x0)))
   MARK(sel(s(x0), 0)) -> c7(MARK(s(x0)))
   MARK(sel(x0, from(x1))) -> c8(A__SEL(mark(x0), cons(mark(mark(x1)), from(s(mark(x1))))), MARK(from(x1)))
   MARK(sel(x0, from(from(z0)))) -> c8(A__SEL(mark(x0), a__from(a__from(mark(z0)))), MARK(from(from(z0))))
   MARK(sel(x0, from(sel(z0, z1)))) -> c8(A__SEL(mark(x0), a__from(a__sel(mark(z0), mark(z1)))), MARK(from(sel(z0, z1))))
   MARK(sel(x0, from(cons(z0, z1)))) -> c8(A__SEL(mark(x0), a__from(cons(mark(z0), z1))), MARK(from(cons(z0, z1))))
   MARK(sel(x0, from(s(z0)))) -> c8(A__SEL(mark(x0), a__from(s(mark(z0)))), MARK(from(s(z0))))
   MARK(sel(x0, from(0))) -> c8(A__SEL(mark(x0), a__from(0)), MARK(from(0)))
   MARK(sel(from(z0), from(x1))) -> c8(A__SEL(a__from(mark(z0)), a__from(mark(x1))), MARK(from(x1)))
   MARK(sel(sel(z0, z1), from(x1))) -> c8(A__SEL(a__sel(mark(z0), mark(z1)), a__from(mark(x1))), MARK(from(x1)))
   MARK(sel(s(z0), from(x1))) -> c8(A__SEL(s(mark(z0)), a__from(mark(x1))), MARK(from(x1)))
   MARK(sel(0, from(x1))) -> c8(A__SEL(0, a__from(mark(x1))), MARK(from(x1)))
   MARK(sel(x0, from(x1))) -> c8(MARK(from(x1)))
   MARK(sel(cons(z0, z1), from(x1))) -> c8(MARK(from(x1)))
   MARK(sel(x0, sel(x1, from(z0)))) -> c8(A__SEL(mark(x0), a__sel(mark(x1), a__from(mark(z0)))), MARK(sel(x1, from(z0))))
   MARK(sel(x0, sel(x1, sel(z0, z1)))) -> c8(A__SEL(mark(x0), a__sel(mark(x1), a__sel(mark(z0), mark(z1)))), MARK(sel(x1, sel(z0, z1))))
   MARK(sel(x0, sel(x1, cons(z0, z1)))) -> c8(A__SEL(mark(x0), a__sel(mark(x1), cons(mark(z0), z1))), MARK(sel(x1, cons(z0, z1))))
   MARK(sel(x0, sel(x1, s(z0)))) -> c8(A__SEL(mark(x0), a__sel(mark(x1), s(mark(z0)))), MARK(sel(x1, s(z0))))
   MARK(sel(x0, sel(x1, 0))) -> c8(A__SEL(mark(x0), a__sel(mark(x1), 0)), MARK(sel(x1, 0)))
   MARK(sel(x0, sel(from(z0), x2))) -> c8(A__SEL(mark(x0), a__sel(a__from(mark(z0)), mark(x2))), MARK(sel(from(z0), x2)))
   MARK(sel(x0, sel(sel(z0, z1), x2))) -> c8(A__SEL(mark(x0), a__sel(a__sel(mark(z0), mark(z1)), mark(x2))), MARK(sel(sel(z0, z1), x2)))
   MARK(sel(x0, sel(cons(z0, z1), x2))) -> c8(A__SEL(mark(x0), a__sel(cons(mark(z0), z1), mark(x2))), MARK(sel(cons(z0, z1), x2)))
   MARK(sel(x0, sel(s(z0), x2))) -> c8(A__SEL(mark(x0), a__sel(s(mark(z0)), mark(x2))), MARK(sel(s(z0), x2)))
   MARK(sel(x0, sel(0, x2))) -> c8(A__SEL(mark(x0), a__sel(0, mark(x2))), MARK(sel(0, x2)))
   MARK(sel(from(z0), sel(x1, x2))) -> c8(A__SEL(a__from(mark(z0)), a__sel(mark(x1), mark(x2))), MARK(sel(x1, x2)))
   MARK(sel(sel(z0, z1), sel(x1, x2))) -> c8(A__SEL(a__sel(mark(z0), mark(z1)), a__sel(mark(x1), mark(x2))), MARK(sel(x1, x2)))
   MARK(sel(s(z0), sel(x1, x2))) -> c8(A__SEL(s(mark(z0)), a__sel(mark(x1), mark(x2))), MARK(sel(x1, x2)))
   MARK(sel(0, sel(x1, x2))) -> c8(A__SEL(0, a__sel(mark(x1), mark(x2))), MARK(sel(x1, x2)))
   MARK(sel(x0, sel(x1, x2))) -> c8(MARK(sel(x1, x2)))
   MARK(sel(cons(z0, z1), sel(x1, x2))) -> c8(MARK(sel(x1, x2)))
   MARK(sel(x0, cons(from(z0), x2))) -> c8(A__SEL(mark(x0), cons(a__from(mark(z0)), x2)), MARK(cons(from(z0), x2)))
   MARK(sel(x0, cons(sel(z0, z1), x2))) -> c8(A__SEL(mark(x0), cons(a__sel(mark(z0), mark(z1)), x2)), MARK(cons(sel(z0, z1), x2)))
   MARK(sel(x0, cons(cons(z0, z1), x2))) -> c8(A__SEL(mark(x0), cons(cons(mark(z0), z1), x2)), MARK(cons(cons(z0, z1), x2)))
   MARK(sel(x0, cons(s(z0), x2))) -> c8(A__SEL(mark(x0), cons(s(mark(z0)), x2)), MARK(cons(s(z0), x2)))
   MARK(sel(x0, cons(0, x2))) -> c8(A__SEL(mark(x0), cons(0, x2)), MARK(cons(0, x2)))
   MARK(sel(from(z0), cons(x1, x2))) -> c8(A__SEL(a__from(mark(z0)), cons(mark(x1), x2)), MARK(cons(x1, x2)))
   MARK(sel(sel(z0, z1), cons(x1, x2))) -> c8(A__SEL(a__sel(mark(z0), mark(z1)), cons(mark(x1), x2)), MARK(cons(x1, x2)))
   MARK(sel(s(z0), cons(x1, x2))) -> c8(A__SEL(s(mark(z0)), cons(mark(x1), x2)), MARK(cons(x1, x2)))
   MARK(sel(0, cons(x1, x2))) -> c8(A__SEL(0, cons(mark(x1), x2)), MARK(cons(x1, x2)))
   MARK(sel(x0, cons(x1, x2))) -> c8(MARK(cons(x1, x2)))
   MARK(sel(cons(z0, z1), cons(x1, x2))) -> c8(MARK(cons(x1, x2)))
   MARK(sel(from(from(z0)), x1)) -> c8(A__SEL(a__from(a__from(mark(z0))), mark(x1)), MARK(x1))
   MARK(sel(from(sel(z0, z1)), x1)) -> c8(A__SEL(a__from(a__sel(mark(z0), mark(z1))), mark(x1)), MARK(x1))
   MARK(sel(from(cons(z0, z1)), x1)) -> c8(A__SEL(a__from(cons(mark(z0), z1)), mark(x1)), MARK(x1))
   MARK(sel(from(s(z0)), x1)) -> c8(A__SEL(a__from(s(mark(z0))), mark(x1)), MARK(x1))
   MARK(sel(from(0), x1)) -> c8(A__SEL(a__from(0), mark(x1)), MARK(x1))
   MARK(sel(from(x0), s(z0))) -> c8(MARK(s(z0)))
   MARK(sel(from(x0), x1)) -> c8(MARK(x1))
K tuples:none
Defined Rule Symbols:   a__from_1, a__sel_2, mark_1

Defined Pair Symbols:   A__FROM_1, A__SEL_2, MARK_1

Compound Symbols:   c_1, c2_1, c6_2, c9_1, c10_1, c3_1, c4_1, c7_1, c8_2, c8_1, c3_2, c4_2, c7_2


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

(187) CdtNarrowingProof (BOTH BOUNDS(ID, ID))
Use narrowing to replace MARK(sel(sel(z0, z1), x1)) -> c8(A__SEL(a__sel(mark(z0), mark(z1)), mark(x1)), MARK(x1)) by 
   MARK(sel(sel(x0, x1), from(z0))) -> c8(A__SEL(a__sel(mark(x0), mark(x1)), a__from(mark(z0))), MARK(from(z0)))
   MARK(sel(sel(x0, x1), sel(z0, z1))) -> c8(A__SEL(a__sel(mark(x0), mark(x1)), a__sel(mark(z0), mark(z1))), MARK(sel(z0, z1)))
   MARK(sel(sel(x0, x1), cons(z0, z1))) -> c8(A__SEL(a__sel(mark(x0), mark(x1)), cons(mark(z0), z1)), MARK(cons(z0, z1)))
   MARK(sel(sel(x0, x1), s(z0))) -> c8(A__SEL(a__sel(mark(x0), mark(x1)), s(mark(z0))), MARK(s(z0)))
   MARK(sel(sel(x0, x1), 0)) -> c8(A__SEL(a__sel(mark(x0), mark(x1)), 0), MARK(0))
   MARK(sel(sel(x0, x1), x2)) -> c8(A__SEL(sel(mark(x0), mark(x1)), mark(x2)), MARK(x2))
   MARK(sel(sel(x0, from(z0)), x2)) -> c8(A__SEL(a__sel(mark(x0), a__from(mark(z0))), mark(x2)), MARK(x2))
   MARK(sel(sel(x0, sel(z0, z1)), x2)) -> c8(A__SEL(a__sel(mark(x0), a__sel(mark(z0), mark(z1))), mark(x2)), MARK(x2))
   MARK(sel(sel(x0, cons(z0, z1)), x2)) -> c8(A__SEL(a__sel(mark(x0), cons(mark(z0), z1)), mark(x2)), MARK(x2))
   MARK(sel(sel(x0, s(z0)), x2)) -> c8(A__SEL(a__sel(mark(x0), s(mark(z0))), mark(x2)), MARK(x2))
   MARK(sel(sel(x0, 0), x2)) -> c8(A__SEL(a__sel(mark(x0), 0), mark(x2)), MARK(x2))
   MARK(sel(sel(from(z0), x1), x2)) -> c8(A__SEL(a__sel(a__from(mark(z0)), mark(x1)), mark(x2)), MARK(x2))
   MARK(sel(sel(sel(z0, z1), x1), x2)) -> c8(A__SEL(a__sel(a__sel(mark(z0), mark(z1)), mark(x1)), mark(x2)), MARK(x2))
   MARK(sel(sel(cons(z0, z1), x1), x2)) -> c8(A__SEL(a__sel(cons(mark(z0), z1), mark(x1)), mark(x2)), MARK(x2))
   MARK(sel(sel(s(z0), x1), x2)) -> c8(A__SEL(a__sel(s(mark(z0)), mark(x1)), mark(x2)), MARK(x2))
   MARK(sel(sel(0, x1), x2)) -> c8(A__SEL(a__sel(0, mark(x1)), mark(x2)), MARK(x2))

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

(188)
Obligation:
Complexity Dependency Tuples Problem

Rules:
   a__from(z0) -> cons(mark(z0), from(s(z0)))
   a__from(z0) -> from(z0)
   a__sel(0, cons(z0, z1)) -> mark(z0)
   a__sel(s(z0), cons(z1, z2)) -> a__sel(mark(z0), mark(z2))
   a__sel(z0, z1) -> sel(z0, z1)
   mark(from(z0)) -> a__from(mark(z0))
   mark(sel(z0, z1)) -> a__sel(mark(z0), mark(z1))
   mark(cons(z0, z1)) -> cons(mark(z0), z1)
   mark(s(z0)) -> s(mark(z0))
   mark(0) -> 0
Tuples:
   A__FROM(z0) -> c(MARK(z0))
   A__SEL(0, cons(z0, z1)) -> c2(MARK(z0))
   MARK(from(z0)) -> c6(A__FROM(mark(z0)), MARK(z0))
   MARK(cons(z0, z1)) -> c9(MARK(z0))
   MARK(s(z0)) -> c10(MARK(z0))
   A__SEL(s(x0), cons(x1, s(z0))) -> c3(MARK(x0))
   A__SEL(s(x0), cons(x1, 0)) -> c3(MARK(x0))
   A__SEL(s(cons(z0, z1)), cons(x1, x2)) -> c3(MARK(cons(z0, z1)))
   A__SEL(s(x0), cons(x1, s(z0))) -> c4(MARK(s(z0)))
   A__SEL(s(cons(z0, z1)), cons(x1, x2)) -> c4(MARK(x2))
   MARK(sel(x0, s(z0))) -> c7(MARK(x0))
   MARK(sel(x0, 0)) -> c7(MARK(x0))
   MARK(sel(cons(z0, z1), x1)) -> c7(MARK(cons(z0, z1)))
   MARK(sel(s(z0), x1)) -> c8(A__SEL(s(mark(z0)), mark(x1)), MARK(x1))
   MARK(sel(0, x1)) -> c8(A__SEL(0, mark(x1)), MARK(x1))
   MARK(sel(x0, s(z0))) -> c8(MARK(s(z0)))
   MARK(sel(cons(z0, z1), x1)) -> c8(MARK(x1))
   A__SEL(s(x0), cons(x1, from(x2))) -> c3(A__SEL(mark(x0), cons(mark(mark(x2)), from(s(mark(x2))))), MARK(x0))
   A__SEL(s(x0), cons(x1, from(from(z0)))) -> c3(A__SEL(mark(x0), a__from(a__from(mark(z0)))), MARK(x0))
   A__SEL(s(x0), cons(x1, from(sel(z0, z1)))) -> c3(A__SEL(mark(x0), a__from(a__sel(mark(z0), mark(z1)))), MARK(x0))
   A__SEL(s(x0), cons(x1, from(cons(z0, z1)))) -> c3(A__SEL(mark(x0), a__from(cons(mark(z0), z1))), MARK(x0))
   A__SEL(s(x0), cons(x1, from(s(z0)))) -> c3(A__SEL(mark(x0), a__from(s(mark(z0)))), MARK(x0))
   A__SEL(s(x0), cons(x1, from(0))) -> c3(A__SEL(mark(x0), a__from(0)), MARK(x0))
   A__SEL(s(from(z0)), cons(x1, from(x2))) -> c3(A__SEL(a__from(mark(z0)), a__from(mark(x2))), MARK(from(z0)))
   A__SEL(s(sel(z0, z1)), cons(x1, from(x2))) -> c3(A__SEL(a__sel(mark(z0), mark(z1)), a__from(mark(x2))), MARK(sel(z0, z1)))
   A__SEL(s(s(z0)), cons(x1, from(x2))) -> c3(A__SEL(s(mark(z0)), a__from(mark(x2))), MARK(s(z0)))
   A__SEL(s(x0), cons(x1, from(x2))) -> c3(MARK(x0))
   A__SEL(s(cons(z0, z1)), cons(x1, from(x2))) -> c3(MARK(cons(z0, z1)))
   A__SEL(s(0), cons(x1, from(x2))) -> c3(A__SEL(0, a__from(mark(x2))))
   A__SEL(s(x0), cons(x1, sel(x2, from(z0)))) -> c3(A__SEL(mark(x0), a__sel(mark(x2), a__from(mark(z0)))), MARK(x0))
   A__SEL(s(x0), cons(x1, sel(x2, sel(z0, z1)))) -> c3(A__SEL(mark(x0), a__sel(mark(x2), a__sel(mark(z0), mark(z1)))), MARK(x0))
   A__SEL(s(x0), cons(x1, sel(x2, cons(z0, z1)))) -> c3(A__SEL(mark(x0), a__sel(mark(x2), cons(mark(z0), z1))), MARK(x0))
   A__SEL(s(x0), cons(x1, sel(x2, s(z0)))) -> c3(A__SEL(mark(x0), a__sel(mark(x2), s(mark(z0)))), MARK(x0))
   A__SEL(s(x0), cons(x1, sel(x2, 0))) -> c3(A__SEL(mark(x0), a__sel(mark(x2), 0)), MARK(x0))
   A__SEL(s(x0), cons(x1, sel(from(z0), x3))) -> c3(A__SEL(mark(x0), a__sel(a__from(mark(z0)), mark(x3))), MARK(x0))
   A__SEL(s(x0), cons(x1, sel(sel(z0, z1), x3))) -> c3(A__SEL(mark(x0), a__sel(a__sel(mark(z0), mark(z1)), mark(x3))), MARK(x0))
   A__SEL(s(x0), cons(x1, sel(cons(z0, z1), x3))) -> c3(A__SEL(mark(x0), a__sel(cons(mark(z0), z1), mark(x3))), MARK(x0))
   A__SEL(s(x0), cons(x1, sel(s(z0), x3))) -> c3(A__SEL(mark(x0), a__sel(s(mark(z0)), mark(x3))), MARK(x0))
   A__SEL(s(x0), cons(x1, sel(0, x3))) -> c3(A__SEL(mark(x0), a__sel(0, mark(x3))), MARK(x0))
   A__SEL(s(from(z0)), cons(x1, sel(x2, x3))) -> c3(A__SEL(a__from(mark(z0)), a__sel(mark(x2), mark(x3))), MARK(from(z0)))
   A__SEL(s(sel(z0, z1)), cons(x1, sel(x2, x3))) -> c3(A__SEL(a__sel(mark(z0), mark(z1)), a__sel(mark(x2), mark(x3))), MARK(sel(z0, z1)))
   A__SEL(s(s(z0)), cons(x1, sel(x2, x3))) -> c3(A__SEL(s(mark(z0)), a__sel(mark(x2), mark(x3))), MARK(s(z0)))
   A__SEL(s(x0), cons(x1, sel(x2, x3))) -> c3(MARK(x0))
   A__SEL(s(cons(z0, z1)), cons(x1, sel(x2, x3))) -> c3(MARK(cons(z0, z1)))
   A__SEL(s(0), cons(x1, sel(x2, x3))) -> c3(A__SEL(0, a__sel(mark(x2), mark(x3))))
   A__SEL(s(x0), cons(x1, cons(from(z0), x3))) -> c3(A__SEL(mark(x0), cons(a__from(mark(z0)), x3)), MARK(x0))
   A__SEL(s(x0), cons(x1, cons(sel(z0, z1), x3))) -> c3(A__SEL(mark(x0), cons(a__sel(mark(z0), mark(z1)), x3)), MARK(x0))
   A__SEL(s(x0), cons(x1, cons(cons(z0, z1), x3))) -> c3(A__SEL(mark(x0), cons(cons(mark(z0), z1), x3)), MARK(x0))
   A__SEL(s(x0), cons(x1, cons(s(z0), x3))) -> c3(A__SEL(mark(x0), cons(s(mark(z0)), x3)), MARK(x0))
   A__SEL(s(x0), cons(x1, cons(0, x3))) -> c3(A__SEL(mark(x0), cons(0, x3)), MARK(x0))
   A__SEL(s(from(z0)), cons(x1, cons(x2, x3))) -> c3(A__SEL(a__from(mark(z0)), cons(mark(x2), x3)), MARK(from(z0)))
   A__SEL(s(sel(z0, z1)), cons(x1, cons(x2, x3))) -> c3(A__SEL(a__sel(mark(z0), mark(z1)), cons(mark(x2), x3)), MARK(sel(z0, z1)))
   A__SEL(s(s(z0)), cons(x1, cons(x2, x3))) -> c3(A__SEL(s(mark(z0)), cons(mark(x2), x3)), MARK(s(z0)))
   A__SEL(s(cons(z0, z1)), cons(x1, cons(x2, x3))) -> c3(MARK(cons(z0, z1)))
   A__SEL(s(0), cons(x1, cons(x2, x3))) -> c3(A__SEL(0, cons(mark(x2), x3)))
   A__SEL(s(from(from(z0))), cons(x1, x2)) -> c3(A__SEL(a__from(a__from(mark(z0))), mark(x2)), MARK(from(from(z0))))
   A__SEL(s(from(sel(z0, z1))), cons(x1, x2)) -> c3(A__SEL(a__from(a__sel(mark(z0), mark(z1))), mark(x2)), MARK(from(sel(z0, z1))))
   A__SEL(s(from(cons(z0, z1))), cons(x1, x2)) -> c3(A__SEL(a__from(cons(mark(z0), z1)), mark(x2)), MARK(from(cons(z0, z1))))
   A__SEL(s(from(s(z0))), cons(x1, x2)) -> c3(A__SEL(a__from(s(mark(z0))), mark(x2)), MARK(from(s(z0))))
   A__SEL(s(from(0)), cons(x1, x2)) -> c3(A__SEL(a__from(0), mark(x2)), MARK(from(0)))
   A__SEL(s(from(x0)), cons(x1, x2)) -> c3(MARK(from(x0)))
   A__SEL(s(from(x0)), cons(x1, s(z0))) -> c3(MARK(from(x0)))
   A__SEL(s(from(x0)), cons(x1, 0)) -> c3(MARK(from(x0)))
   A__SEL(s(sel(x0, from(z0))), cons(x2, x3)) -> c3(A__SEL(a__sel(mark(x0), a__from(mark(z0))), mark(x3)), MARK(sel(x0, from(z0))))
   A__SEL(s(sel(x0, sel(z0, z1))), cons(x2, x3)) -> c3(A__SEL(a__sel(mark(x0), a__sel(mark(z0), mark(z1))), mark(x3)), MARK(sel(x0, sel(z0, z1))))
   A__SEL(s(sel(x0, cons(z0, z1))), cons(x2, x3)) -> c3(A__SEL(a__sel(mark(x0), cons(mark(z0), z1)), mark(x3)), MARK(sel(x0, cons(z0, z1))))
   A__SEL(s(sel(x0, s(z0))), cons(x2, x3)) -> c3(A__SEL(a__sel(mark(x0), s(mark(z0))), mark(x3)), MARK(sel(x0, s(z0))))
   A__SEL(s(sel(x0, 0)), cons(x2, x3)) -> c3(A__SEL(a__sel(mark(x0), 0), mark(x3)), MARK(sel(x0, 0)))
   A__SEL(s(sel(from(z0), x1)), cons(x2, x3)) -> c3(A__SEL(a__sel(a__from(mark(z0)), mark(x1)), mark(x3)), MARK(sel(from(z0), x1)))
   A__SEL(s(sel(sel(z0, z1), x1)), cons(x2, x3)) -> c3(A__SEL(a__sel(a__sel(mark(z0), mark(z1)), mark(x1)), mark(x3)), MARK(sel(sel(z0, z1), x1)))
   A__SEL(s(sel(cons(z0, z1), x1)), cons(x2, x3)) -> c3(A__SEL(a__sel(cons(mark(z0), z1), mark(x1)), mark(x3)), MARK(sel(cons(z0, z1), x1)))
   A__SEL(s(sel(s(z0), x1)), cons(x2, x3)) -> c3(A__SEL(a__sel(s(mark(z0)), mark(x1)), mark(x3)), MARK(sel(s(z0), x1)))
   A__SEL(s(sel(0, x1)), cons(x2, x3)) -> c3(A__SEL(a__sel(0, mark(x1)), mark(x3)), MARK(sel(0, x1)))
   A__SEL(s(sel(x0, x1)), cons(x2, s(z0))) -> c3(MARK(sel(x0, x1)))
   A__SEL(s(sel(x0, x1)), cons(x2, 0)) -> c3(MARK(sel(x0, x1)))
   A__SEL(s(sel(x0, x1)), cons(x2, x3)) -> c3(MARK(sel(x0, x1)))
   A__SEL(s(s(from(z0))), cons(x1, x2)) -> c3(A__SEL(s(a__from(mark(z0))), mark(x2)), MARK(s(from(z0))))
   A__SEL(s(s(sel(z0, z1))), cons(x1, x2)) -> c3(A__SEL(s(a__sel(mark(z0), mark(z1))), mark(x2)), MARK(s(sel(z0, z1))))
   A__SEL(s(s(cons(z0, z1))), cons(x1, x2)) -> c3(A__SEL(s(cons(mark(z0), z1)), mark(x2)), MARK(s(cons(z0, z1))))
   A__SEL(s(s(s(z0))), cons(x1, x2)) -> c3(A__SEL(s(s(mark(z0))), mark(x2)), MARK(s(s(z0))))
   A__SEL(s(s(0)), cons(x1, x2)) -> c3(A__SEL(s(0), mark(x2)), MARK(s(0)))
   A__SEL(s(s(x0)), cons(x1, x2)) -> c3(MARK(s(x0)))
   A__SEL(s(s(x0)), cons(x1, s(z0))) -> c3(MARK(s(x0)))
   A__SEL(s(s(x0)), cons(x1, 0)) -> c3(MARK(s(x0)))
   A__SEL(s(x0), cons(x1, from(x2))) -> c4(A__SEL(mark(x0), cons(mark(mark(x2)), from(s(mark(x2))))), MARK(from(x2)))
   A__SEL(s(x0), cons(x1, from(from(z0)))) -> c4(A__SEL(mark(x0), a__from(a__from(mark(z0)))), MARK(from(from(z0))))
   A__SEL(s(x0), cons(x1, from(sel(z0, z1)))) -> c4(A__SEL(mark(x0), a__from(a__sel(mark(z0), mark(z1)))), MARK(from(sel(z0, z1))))
   A__SEL(s(x0), cons(x1, from(cons(z0, z1)))) -> c4(A__SEL(mark(x0), a__from(cons(mark(z0), z1))), MARK(from(cons(z0, z1))))
   A__SEL(s(x0), cons(x1, from(s(z0)))) -> c4(A__SEL(mark(x0), a__from(s(mark(z0)))), MARK(from(s(z0))))
   A__SEL(s(x0), cons(x1, from(0))) -> c4(A__SEL(mark(x0), a__from(0)), MARK(from(0)))
   A__SEL(s(from(z0)), cons(x1, from(x2))) -> c4(A__SEL(a__from(mark(z0)), a__from(mark(x2))), MARK(from(x2)))
   A__SEL(s(sel(z0, z1)), cons(x1, from(x2))) -> c4(A__SEL(a__sel(mark(z0), mark(z1)), a__from(mark(x2))), MARK(from(x2)))
   A__SEL(s(s(z0)), cons(x1, from(x2))) -> c4(A__SEL(s(mark(z0)), a__from(mark(x2))), MARK(from(x2)))
   A__SEL(s(0), cons(x1, from(x2))) -> c4(A__SEL(0, a__from(mark(x2))), MARK(from(x2)))
   A__SEL(s(x0), cons(x1, from(x2))) -> c4(MARK(from(x2)))
   A__SEL(s(cons(z0, z1)), cons(x1, from(x2))) -> c4(MARK(from(x2)))
   A__SEL(s(x0), cons(x1, sel(x2, from(z0)))) -> c4(A__SEL(mark(x0), a__sel(mark(x2), a__from(mark(z0)))), MARK(sel(x2, from(z0))))
   A__SEL(s(x0), cons(x1, sel(x2, sel(z0, z1)))) -> c4(A__SEL(mark(x0), a__sel(mark(x2), a__sel(mark(z0), mark(z1)))), MARK(sel(x2, sel(z0, z1))))
   A__SEL(s(x0), cons(x1, sel(x2, cons(z0, z1)))) -> c4(A__SEL(mark(x0), a__sel(mark(x2), cons(mark(z0), z1))), MARK(sel(x2, cons(z0, z1))))
   A__SEL(s(x0), cons(x1, sel(x2, s(z0)))) -> c4(A__SEL(mark(x0), a__sel(mark(x2), s(mark(z0)))), MARK(sel(x2, s(z0))))
   A__SEL(s(x0), cons(x1, sel(x2, 0))) -> c4(A__SEL(mark(x0), a__sel(mark(x2), 0)), MARK(sel(x2, 0)))
   A__SEL(s(x0), cons(x1, sel(from(z0), x3))) -> c4(A__SEL(mark(x0), a__sel(a__from(mark(z0)), mark(x3))), MARK(sel(from(z0), x3)))
   A__SEL(s(x0), cons(x1, sel(sel(z0, z1), x3))) -> c4(A__SEL(mark(x0), a__sel(a__sel(mark(z0), mark(z1)), mark(x3))), MARK(sel(sel(z0, z1), x3)))
   A__SEL(s(x0), cons(x1, sel(cons(z0, z1), x3))) -> c4(A__SEL(mark(x0), a__sel(cons(mark(z0), z1), mark(x3))), MARK(sel(cons(z0, z1), x3)))
   A__SEL(s(x0), cons(x1, sel(s(z0), x3))) -> c4(A__SEL(mark(x0), a__sel(s(mark(z0)), mark(x3))), MARK(sel(s(z0), x3)))
   A__SEL(s(x0), cons(x1, sel(0, x3))) -> c4(A__SEL(mark(x0), a__sel(0, mark(x3))), MARK(sel(0, x3)))
   A__SEL(s(from(z0)), cons(x1, sel(x2, x3))) -> c4(A__SEL(a__from(mark(z0)), a__sel(mark(x2), mark(x3))), MARK(sel(x2, x3)))
   A__SEL(s(sel(z0, z1)), cons(x1, sel(x2, x3))) -> c4(A__SEL(a__sel(mark(z0), mark(z1)), a__sel(mark(x2), mark(x3))), MARK(sel(x2, x3)))
   A__SEL(s(s(z0)), cons(x1, sel(x2, x3))) -> c4(A__SEL(s(mark(z0)), a__sel(mark(x2), mark(x3))), MARK(sel(x2, x3)))
   A__SEL(s(0), cons(x1, sel(x2, x3))) -> c4(A__SEL(0, a__sel(mark(x2), mark(x3))), MARK(sel(x2, x3)))
   A__SEL(s(x0), cons(x1, sel(x2, x3))) -> c4(MARK(sel(x2, x3)))
   A__SEL(s(cons(z0, z1)), cons(x1, sel(x2, x3))) -> c4(MARK(sel(x2, x3)))
   A__SEL(s(x0), cons(x1, cons(from(z0), x3))) -> c4(A__SEL(mark(x0), cons(a__from(mark(z0)), x3)), MARK(cons(from(z0), x3)))
   A__SEL(s(x0), cons(x1, cons(sel(z0, z1), x3))) -> c4(A__SEL(mark(x0), cons(a__sel(mark(z0), mark(z1)), x3)), MARK(cons(sel(z0, z1), x3)))
   A__SEL(s(x0), cons(x1, cons(cons(z0, z1), x3))) -> c4(A__SEL(mark(x0), cons(cons(mark(z0), z1), x3)), MARK(cons(cons(z0, z1), x3)))
   A__SEL(s(x0), cons(x1, cons(s(z0), x3))) -> c4(A__SEL(mark(x0), cons(s(mark(z0)), x3)), MARK(cons(s(z0), x3)))
   A__SEL(s(x0), cons(x1, cons(0, x3))) -> c4(A__SEL(mark(x0), cons(0, x3)), MARK(cons(0, x3)))
   A__SEL(s(from(z0)), cons(x1, cons(x2, x3))) -> c4(A__SEL(a__from(mark(z0)), cons(mark(x2), x3)), MARK(cons(x2, x3)))
   A__SEL(s(sel(z0, z1)), cons(x1, cons(x2, x3))) -> c4(A__SEL(a__sel(mark(z0), mark(z1)), cons(mark(x2), x3)), MARK(cons(x2, x3)))
   A__SEL(s(s(z0)), cons(x1, cons(x2, x3))) -> c4(A__SEL(s(mark(z0)), cons(mark(x2), x3)), MARK(cons(x2, x3)))
   A__SEL(s(0), cons(x1, cons(x2, x3))) -> c4(A__SEL(0, cons(mark(x2), x3)), MARK(cons(x2, x3)))
   A__SEL(s(x0), cons(x1, cons(x2, x3))) -> c4(MARK(cons(x2, x3)))
   A__SEL(s(cons(z0, z1)), cons(x1, cons(x2, x3))) -> c4(MARK(cons(x2, x3)))
   A__SEL(s(from(from(z0))), cons(x1, x2)) -> c4(A__SEL(a__from(a__from(mark(z0))), mark(x2)), MARK(x2))
   A__SEL(s(from(sel(z0, z1))), cons(x1, x2)) -> c4(A__SEL(a__from(a__sel(mark(z0), mark(z1))), mark(x2)), MARK(x2))
   A__SEL(s(from(cons(z0, z1))), cons(x1, x2)) -> c4(A__SEL(a__from(cons(mark(z0), z1)), mark(x2)), MARK(x2))
   A__SEL(s(from(s(z0))), cons(x1, x2)) -> c4(A__SEL(a__from(s(mark(z0))), mark(x2)), MARK(x2))
   A__SEL(s(from(0)), cons(x1, x2)) -> c4(A__SEL(a__from(0), mark(x2)), MARK(x2))
   A__SEL(s(from(x0)), cons(x1, s(z0))) -> c4(MARK(s(z0)))
   A__SEL(s(from(x0)), cons(x1, x2)) -> c4(MARK(x2))
   A__SEL(s(sel(x0, from(z0))), cons(x2, x3)) -> c4(A__SEL(a__sel(mark(x0), a__from(mark(z0))), mark(x3)), MARK(x3))
   A__SEL(s(sel(x0, sel(z0, z1))), cons(x2, x3)) -> c4(A__SEL(a__sel(mark(x0), a__sel(mark(z0), mark(z1))), mark(x3)), MARK(x3))
   A__SEL(s(sel(x0, cons(z0, z1))), cons(x2, x3)) -> c4(A__SEL(a__sel(mark(x0), cons(mark(z0), z1)), mark(x3)), MARK(x3))
   A__SEL(s(sel(x0, s(z0))), cons(x2, x3)) -> c4(A__SEL(a__sel(mark(x0), s(mark(z0))), mark(x3)), MARK(x3))
   A__SEL(s(sel(x0, 0)), cons(x2, x3)) -> c4(A__SEL(a__sel(mark(x0), 0), mark(x3)), MARK(x3))
   A__SEL(s(sel(from(z0), x1)), cons(x2, x3)) -> c4(A__SEL(a__sel(a__from(mark(z0)), mark(x1)), mark(x3)), MARK(x3))
   A__SEL(s(sel(sel(z0, z1), x1)), cons(x2, x3)) -> c4(A__SEL(a__sel(a__sel(mark(z0), mark(z1)), mark(x1)), mark(x3)), MARK(x3))
   A__SEL(s(sel(cons(z0, z1), x1)), cons(x2, x3)) -> c4(A__SEL(a__sel(cons(mark(z0), z1), mark(x1)), mark(x3)), MARK(x3))
   A__SEL(s(sel(s(z0), x1)), cons(x2, x3)) -> c4(A__SEL(a__sel(s(mark(z0)), mark(x1)), mark(x3)), MARK(x3))
   A__SEL(s(sel(0, x1)), cons(x2, x3)) -> c4(A__SEL(a__sel(0, mark(x1)), mark(x3)), MARK(x3))
   A__SEL(s(sel(x0, x1)), cons(x2, s(z0))) -> c4(MARK(s(z0)))
   A__SEL(s(sel(x0, x1)), cons(x2, x3)) -> c4(MARK(x3))
   A__SEL(s(s(from(z0))), cons(x1, x2)) -> c4(A__SEL(s(a__from(mark(z0))), mark(x2)), MARK(x2))
   A__SEL(s(s(sel(z0, z1))), cons(x1, x2)) -> c4(A__SEL(s(a__sel(mark(z0), mark(z1))), mark(x2)), MARK(x2))
   A__SEL(s(s(cons(z0, z1))), cons(x1, x2)) -> c4(A__SEL(s(cons(mark(z0), z1)), mark(x2)), MARK(x2))
   A__SEL(s(s(s(z0))), cons(x1, x2)) -> c4(A__SEL(s(s(mark(z0))), mark(x2)), MARK(x2))
   A__SEL(s(s(0)), cons(x1, x2)) -> c4(A__SEL(s(0), mark(x2)), MARK(x2))
   A__SEL(s(s(x0)), cons(x1, s(z0))) -> c4(MARK(s(z0)))
   A__SEL(s(0), cons(x0, s(z0))) -> c4(MARK(s(z0)))
   MARK(sel(x0, from(x1))) -> c7(A__SEL(mark(x0), cons(mark(mark(x1)), from(s(mark(x1))))), MARK(x0))
   MARK(sel(x0, from(from(z0)))) -> c7(A__SEL(mark(x0), a__from(a__from(mark(z0)))), MARK(x0))
   MARK(sel(x0, from(sel(z0, z1)))) -> c7(A__SEL(mark(x0), a__from(a__sel(mark(z0), mark(z1)))), MARK(x0))
   MARK(sel(x0, from(cons(z0, z1)))) -> c7(A__SEL(mark(x0), a__from(cons(mark(z0), z1))), MARK(x0))
   MARK(sel(x0, from(s(z0)))) -> c7(A__SEL(mark(x0), a__from(s(mark(z0)))), MARK(x0))
   MARK(sel(x0, from(0))) -> c7(A__SEL(mark(x0), a__from(0)), MARK(x0))
   MARK(sel(from(z0), from(x1))) -> c7(A__SEL(a__from(mark(z0)), a__from(mark(x1))), MARK(from(z0)))
   MARK(sel(sel(z0, z1), from(x1))) -> c7(A__SEL(a__sel(mark(z0), mark(z1)), a__from(mark(x1))), MARK(sel(z0, z1)))
   MARK(sel(s(z0), from(x1))) -> c7(A__SEL(s(mark(z0)), a__from(mark(x1))), MARK(s(z0)))
   MARK(sel(x0, from(x1))) -> c7(MARK(x0))
   MARK(sel(cons(z0, z1), from(x1))) -> c7(MARK(cons(z0, z1)))
   MARK(sel(0, from(x1))) -> c7(A__SEL(0, a__from(mark(x1))))
   MARK(sel(x0, sel(x1, from(z0)))) -> c7(A__SEL(mark(x0), a__sel(mark(x1), a__from(mark(z0)))), MARK(x0))
   MARK(sel(x0, sel(x1, sel(z0, z1)))) -> c7(A__SEL(mark(x0), a__sel(mark(x1), a__sel(mark(z0), mark(z1)))), MARK(x0))
   MARK(sel(x0, sel(x1, cons(z0, z1)))) -> c7(A__SEL(mark(x0), a__sel(mark(x1), cons(mark(z0), z1))), MARK(x0))
   MARK(sel(x0, sel(x1, s(z0)))) -> c7(A__SEL(mark(x0), a__sel(mark(x1), s(mark(z0)))), MARK(x0))
   MARK(sel(x0, sel(x1, 0))) -> c7(A__SEL(mark(x0), a__sel(mark(x1), 0)), MARK(x0))
   MARK(sel(x0, sel(from(z0), x2))) -> c7(A__SEL(mark(x0), a__sel(a__from(mark(z0)), mark(x2))), MARK(x0))
   MARK(sel(x0, sel(sel(z0, z1), x2))) -> c7(A__SEL(mark(x0), a__sel(a__sel(mark(z0), mark(z1)), mark(x2))), MARK(x0))
   MARK(sel(x0, sel(cons(z0, z1), x2))) -> c7(A__SEL(mark(x0), a__sel(cons(mark(z0), z1), mark(x2))), MARK(x0))
   MARK(sel(x0, sel(s(z0), x2))) -> c7(A__SEL(mark(x0), a__sel(s(mark(z0)), mark(x2))), MARK(x0))
   MARK(sel(x0, sel(0, x2))) -> c7(A__SEL(mark(x0), a__sel(0, mark(x2))), MARK(x0))
   MARK(sel(from(z0), sel(x1, x2))) -> c7(A__SEL(a__from(mark(z0)), a__sel(mark(x1), mark(x2))), MARK(from(z0)))
   MARK(sel(sel(z0, z1), sel(x1, x2))) -> c7(A__SEL(a__sel(mark(z0), mark(z1)), a__sel(mark(x1), mark(x2))), MARK(sel(z0, z1)))
   MARK(sel(s(z0), sel(x1, x2))) -> c7(A__SEL(s(mark(z0)), a__sel(mark(x1), mark(x2))), MARK(s(z0)))
   MARK(sel(x0, sel(x1, x2))) -> c7(MARK(x0))
   MARK(sel(cons(z0, z1), sel(x1, x2))) -> c7(MARK(cons(z0, z1)))
   MARK(sel(0, sel(x1, x2))) -> c7(A__SEL(0, a__sel(mark(x1), mark(x2))))
   MARK(sel(x0, cons(from(z0), x2))) -> c7(A__SEL(mark(x0), cons(a__from(mark(z0)), x2)), MARK(x0))
   MARK(sel(x0, cons(sel(z0, z1), x2))) -> c7(A__SEL(mark(x0), cons(a__sel(mark(z0), mark(z1)), x2)), MARK(x0))
   MARK(sel(x0, cons(cons(z0, z1), x2))) -> c7(A__SEL(mark(x0), cons(cons(mark(z0), z1), x2)), MARK(x0))
   MARK(sel(x0, cons(s(z0), x2))) -> c7(A__SEL(mark(x0), cons(s(mark(z0)), x2)), MARK(x0))
   MARK(sel(x0, cons(0, x2))) -> c7(A__SEL(mark(x0), cons(0, x2)), MARK(x0))
   MARK(sel(from(z0), cons(x1, x2))) -> c7(A__SEL(a__from(mark(z0)), cons(mark(x1), x2)), MARK(from(z0)))
   MARK(sel(sel(z0, z1), cons(x1, x2))) -> c7(A__SEL(a__sel(mark(z0), mark(z1)), cons(mark(x1), x2)), MARK(sel(z0, z1)))
   MARK(sel(s(z0), cons(x1, x2))) -> c7(A__SEL(s(mark(z0)), cons(mark(x1), x2)), MARK(s(z0)))
   MARK(sel(cons(z0, z1), cons(x1, x2))) -> c7(MARK(cons(z0, z1)))
   MARK(sel(0, cons(x1, x2))) -> c7(A__SEL(0, cons(mark(x1), x2)))
   MARK(sel(from(from(z0)), x1)) -> c7(A__SEL(a__from(a__from(mark(z0))), mark(x1)), MARK(from(from(z0))))
   MARK(sel(from(sel(z0, z1)), x1)) -> c7(A__SEL(a__from(a__sel(mark(z0), mark(z1))), mark(x1)), MARK(from(sel(z0, z1))))
   MARK(sel(from(cons(z0, z1)), x1)) -> c7(A__SEL(a__from(cons(mark(z0), z1)), mark(x1)), MARK(from(cons(z0, z1))))
   MARK(sel(from(s(z0)), x1)) -> c7(A__SEL(a__from(s(mark(z0))), mark(x1)), MARK(from(s(z0))))
   MARK(sel(from(0), x1)) -> c7(A__SEL(a__from(0), mark(x1)), MARK(from(0)))
   MARK(sel(from(x0), x1)) -> c7(MARK(from(x0)))
   MARK(sel(from(x0), s(z0))) -> c7(MARK(from(x0)))
   MARK(sel(from(x0), 0)) -> c7(MARK(from(x0)))
   MARK(sel(sel(x0, from(z0)), x2)) -> c7(A__SEL(a__sel(mark(x0), a__from(mark(z0))), mark(x2)), MARK(sel(x0, from(z0))))
   MARK(sel(sel(x0, sel(z0, z1)), x2)) -> c7(A__SEL(a__sel(mark(x0), a__sel(mark(z0), mark(z1))), mark(x2)), MARK(sel(x0, sel(z0, z1))))
   MARK(sel(sel(x0, cons(z0, z1)), x2)) -> c7(A__SEL(a__sel(mark(x0), cons(mark(z0), z1)), mark(x2)), MARK(sel(x0, cons(z0, z1))))
   MARK(sel(sel(x0, s(z0)), x2)) -> c7(A__SEL(a__sel(mark(x0), s(mark(z0))), mark(x2)), MARK(sel(x0, s(z0))))
   MARK(sel(sel(x0, 0), x2)) -> c7(A__SEL(a__sel(mark(x0), 0), mark(x2)), MARK(sel(x0, 0)))
   MARK(sel(sel(from(z0), x1), x2)) -> c7(A__SEL(a__sel(a__from(mark(z0)), mark(x1)), mark(x2)), MARK(sel(from(z0), x1)))
   MARK(sel(sel(sel(z0, z1), x1), x2)) -> c7(A__SEL(a__sel(a__sel(mark(z0), mark(z1)), mark(x1)), mark(x2)), MARK(sel(sel(z0, z1), x1)))
   MARK(sel(sel(cons(z0, z1), x1), x2)) -> c7(A__SEL(a__sel(cons(mark(z0), z1), mark(x1)), mark(x2)), MARK(sel(cons(z0, z1), x1)))
   MARK(sel(sel(s(z0), x1), x2)) -> c7(A__SEL(a__sel(s(mark(z0)), mark(x1)), mark(x2)), MARK(sel(s(z0), x1)))
   MARK(sel(sel(0, x1), x2)) -> c7(A__SEL(a__sel(0, mark(x1)), mark(x2)), MARK(sel(0, x1)))
   MARK(sel(sel(x0, x1), s(z0))) -> c7(MARK(sel(x0, x1)))
   MARK(sel(sel(x0, x1), 0)) -> c7(MARK(sel(x0, x1)))
   MARK(sel(sel(x0, x1), x2)) -> c7(MARK(sel(x0, x1)))
   MARK(sel(s(from(z0)), x1)) -> c7(A__SEL(s(a__from(mark(z0))), mark(x1)), MARK(s(from(z0))))
   MARK(sel(s(sel(z0, z1)), x1)) -> c7(A__SEL(s(a__sel(mark(z0), mark(z1))), mark(x1)), MARK(s(sel(z0, z1))))
   MARK(sel(s(cons(z0, z1)), x1)) -> c7(A__SEL(s(cons(mark(z0), z1)), mark(x1)), MARK(s(cons(z0, z1))))
   MARK(sel(s(s(z0)), x1)) -> c7(A__SEL(s(s(mark(z0))), mark(x1)), MARK(s(s(z0))))
   MARK(sel(s(0), x1)) -> c7(A__SEL(s(0), mark(x1)), MARK(s(0)))
   MARK(sel(s(x0), x1)) -> c7(MARK(s(x0)))
   MARK(sel(s(x0), s(z0))) -> c7(MARK(s(x0)))
   MARK(sel(s(x0), 0)) -> c7(MARK(s(x0)))
   MARK(sel(x0, from(x1))) -> c8(A__SEL(mark(x0), cons(mark(mark(x1)), from(s(mark(x1))))), MARK(from(x1)))
   MARK(sel(x0, from(from(z0)))) -> c8(A__SEL(mark(x0), a__from(a__from(mark(z0)))), MARK(from(from(z0))))
   MARK(sel(x0, from(sel(z0, z1)))) -> c8(A__SEL(mark(x0), a__from(a__sel(mark(z0), mark(z1)))), MARK(from(sel(z0, z1))))
   MARK(sel(x0, from(cons(z0, z1)))) -> c8(A__SEL(mark(x0), a__from(cons(mark(z0), z1))), MARK(from(cons(z0, z1))))
   MARK(sel(x0, from(s(z0)))) -> c8(A__SEL(mark(x0), a__from(s(mark(z0)))), MARK(from(s(z0))))
   MARK(sel(x0, from(0))) -> c8(A__SEL(mark(x0), a__from(0)), MARK(from(0)))
   MARK(sel(from(z0), from(x1))) -> c8(A__SEL(a__from(mark(z0)), a__from(mark(x1))), MARK(from(x1)))
   MARK(sel(sel(z0, z1), from(x1))) -> c8(A__SEL(a__sel(mark(z0), mark(z1)), a__from(mark(x1))), MARK(from(x1)))
   MARK(sel(s(z0), from(x1))) -> c8(A__SEL(s(mark(z0)), a__from(mark(x1))), MARK(from(x1)))
   MARK(sel(0, from(x1))) -> c8(A__SEL(0, a__from(mark(x1))), MARK(from(x1)))
   MARK(sel(x0, from(x1))) -> c8(MARK(from(x1)))
   MARK(sel(cons(z0, z1), from(x1))) -> c8(MARK(from(x1)))
   MARK(sel(x0, sel(x1, from(z0)))) -> c8(A__SEL(mark(x0), a__sel(mark(x1), a__from(mark(z0)))), MARK(sel(x1, from(z0))))
   MARK(sel(x0, sel(x1, sel(z0, z1)))) -> c8(A__SEL(mark(x0), a__sel(mark(x1), a__sel(mark(z0), mark(z1)))), MARK(sel(x1, sel(z0, z1))))
   MARK(sel(x0, sel(x1, cons(z0, z1)))) -> c8(A__SEL(mark(x0), a__sel(mark(x1), cons(mark(z0), z1))), MARK(sel(x1, cons(z0, z1))))
   MARK(sel(x0, sel(x1, s(z0)))) -> c8(A__SEL(mark(x0), a__sel(mark(x1), s(mark(z0)))), MARK(sel(x1, s(z0))))
   MARK(sel(x0, sel(x1, 0))) -> c8(A__SEL(mark(x0), a__sel(mark(x1), 0)), MARK(sel(x1, 0)))
   MARK(sel(x0, sel(from(z0), x2))) -> c8(A__SEL(mark(x0), a__sel(a__from(mark(z0)), mark(x2))), MARK(sel(from(z0), x2)))
   MARK(sel(x0, sel(sel(z0, z1), x2))) -> c8(A__SEL(mark(x0), a__sel(a__sel(mark(z0), mark(z1)), mark(x2))), MARK(sel(sel(z0, z1), x2)))
   MARK(sel(x0, sel(cons(z0, z1), x2))) -> c8(A__SEL(mark(x0), a__sel(cons(mark(z0), z1), mark(x2))), MARK(sel(cons(z0, z1), x2)))
   MARK(sel(x0, sel(s(z0), x2))) -> c8(A__SEL(mark(x0), a__sel(s(mark(z0)), mark(x2))), MARK(sel(s(z0), x2)))
   MARK(sel(x0, sel(0, x2))) -> c8(A__SEL(mark(x0), a__sel(0, mark(x2))), MARK(sel(0, x2)))
   MARK(sel(from(z0), sel(x1, x2))) -> c8(A__SEL(a__from(mark(z0)), a__sel(mark(x1), mark(x2))), MARK(sel(x1, x2)))
   MARK(sel(sel(z0, z1), sel(x1, x2))) -> c8(A__SEL(a__sel(mark(z0), mark(z1)), a__sel(mark(x1), mark(x2))), MARK(sel(x1, x2)))
   MARK(sel(s(z0), sel(x1, x2))) -> c8(A__SEL(s(mark(z0)), a__sel(mark(x1), mark(x2))), MARK(sel(x1, x2)))
   MARK(sel(0, sel(x1, x2))) -> c8(A__SEL(0, a__sel(mark(x1), mark(x2))), MARK(sel(x1, x2)))
   MARK(sel(x0, sel(x1, x2))) -> c8(MARK(sel(x1, x2)))
   MARK(sel(cons(z0, z1), sel(x1, x2))) -> c8(MARK(sel(x1, x2)))
   MARK(sel(x0, cons(from(z0), x2))) -> c8(A__SEL(mark(x0), cons(a__from(mark(z0)), x2)), MARK(cons(from(z0), x2)))
   MARK(sel(x0, cons(sel(z0, z1), x2))) -> c8(A__SEL(mark(x0), cons(a__sel(mark(z0), mark(z1)), x2)), MARK(cons(sel(z0, z1), x2)))
   MARK(sel(x0, cons(cons(z0, z1), x2))) -> c8(A__SEL(mark(x0), cons(cons(mark(z0), z1), x2)), MARK(cons(cons(z0, z1), x2)))
   MARK(sel(x0, cons(s(z0), x2))) -> c8(A__SEL(mark(x0), cons(s(mark(z0)), x2)), MARK(cons(s(z0), x2)))
   MARK(sel(x0, cons(0, x2))) -> c8(A__SEL(mark(x0), cons(0, x2)), MARK(cons(0, x2)))
   MARK(sel(from(z0), cons(x1, x2))) -> c8(A__SEL(a__from(mark(z0)), cons(mark(x1), x2)), MARK(cons(x1, x2)))
   MARK(sel(sel(z0, z1), cons(x1, x2))) -> c8(A__SEL(a__sel(mark(z0), mark(z1)), cons(mark(x1), x2)), MARK(cons(x1, x2)))
   MARK(sel(s(z0), cons(x1, x2))) -> c8(A__SEL(s(mark(z0)), cons(mark(x1), x2)), MARK(cons(x1, x2)))
   MARK(sel(0, cons(x1, x2))) -> c8(A__SEL(0, cons(mark(x1), x2)), MARK(cons(x1, x2)))
   MARK(sel(x0, cons(x1, x2))) -> c8(MARK(cons(x1, x2)))
   MARK(sel(cons(z0, z1), cons(x1, x2))) -> c8(MARK(cons(x1, x2)))
   MARK(sel(from(from(z0)), x1)) -> c8(A__SEL(a__from(a__from(mark(z0))), mark(x1)), MARK(x1))
   MARK(sel(from(sel(z0, z1)), x1)) -> c8(A__SEL(a__from(a__sel(mark(z0), mark(z1))), mark(x1)), MARK(x1))
   MARK(sel(from(cons(z0, z1)), x1)) -> c8(A__SEL(a__from(cons(mark(z0), z1)), mark(x1)), MARK(x1))
   MARK(sel(from(s(z0)), x1)) -> c8(A__SEL(a__from(s(mark(z0))), mark(x1)), MARK(x1))
   MARK(sel(from(0), x1)) -> c8(A__SEL(a__from(0), mark(x1)), MARK(x1))
   MARK(sel(from(x0), s(z0))) -> c8(MARK(s(z0)))
   MARK(sel(from(x0), x1)) -> c8(MARK(x1))
   MARK(sel(sel(x0, x1), s(z0))) -> c8(A__SEL(a__sel(mark(x0), mark(x1)), s(mark(z0))), MARK(s(z0)))
   MARK(sel(sel(x0, x1), 0)) -> c8(A__SEL(a__sel(mark(x0), mark(x1)), 0), MARK(0))
   MARK(sel(sel(x0, x1), x2)) -> c8(A__SEL(sel(mark(x0), mark(x1)), mark(x2)), MARK(x2))
   MARK(sel(sel(x0, from(z0)), x2)) -> c8(A__SEL(a__sel(mark(x0), a__from(mark(z0))), mark(x2)), MARK(x2))
   MARK(sel(sel(x0, sel(z0, z1)), x2)) -> c8(A__SEL(a__sel(mark(x0), a__sel(mark(z0), mark(z1))), mark(x2)), MARK(x2))
   MARK(sel(sel(x0, cons(z0, z1)), x2)) -> c8(A__SEL(a__sel(mark(x0), cons(mark(z0), z1)), mark(x2)), MARK(x2))
   MARK(sel(sel(x0, s(z0)), x2)) -> c8(A__SEL(a__sel(mark(x0), s(mark(z0))), mark(x2)), MARK(x2))
   MARK(sel(sel(x0, 0), x2)) -> c8(A__SEL(a__sel(mark(x0), 0), mark(x2)), MARK(x2))
   MARK(sel(sel(from(z0), x1), x2)) -> c8(A__SEL(a__sel(a__from(mark(z0)), mark(x1)), mark(x2)), MARK(x2))
   MARK(sel(sel(sel(z0, z1), x1), x2)) -> c8(A__SEL(a__sel(a__sel(mark(z0), mark(z1)), mark(x1)), mark(x2)), MARK(x2))
   MARK(sel(sel(cons(z0, z1), x1), x2)) -> c8(A__SEL(a__sel(cons(mark(z0), z1), mark(x1)), mark(x2)), MARK(x2))
   MARK(sel(sel(s(z0), x1), x2)) -> c8(A__SEL(a__sel(s(mark(z0)), mark(x1)), mark(x2)), MARK(x2))
   MARK(sel(sel(0, x1), x2)) -> c8(A__SEL(a__sel(0, mark(x1)), mark(x2)), MARK(x2))
S tuples:
   A__FROM(z0) -> c(MARK(z0))
   A__SEL(0, cons(z0, z1)) -> c2(MARK(z0))
   MARK(from(z0)) -> c6(A__FROM(mark(z0)), MARK(z0))
   MARK(cons(z0, z1)) -> c9(MARK(z0))
   MARK(s(z0)) -> c10(MARK(z0))
   A__SEL(s(x0), cons(x1, s(z0))) -> c3(MARK(x0))
   A__SEL(s(x0), cons(x1, 0)) -> c3(MARK(x0))
   A__SEL(s(cons(z0, z1)), cons(x1, x2)) -> c3(MARK(cons(z0, z1)))
   A__SEL(s(x0), cons(x1, s(z0))) -> c4(MARK(s(z0)))
   A__SEL(s(cons(z0, z1)), cons(x1, x2)) -> c4(MARK(x2))
   MARK(sel(x0, s(z0))) -> c7(MARK(x0))
   MARK(sel(x0, 0)) -> c7(MARK(x0))
   MARK(sel(cons(z0, z1), x1)) -> c7(MARK(cons(z0, z1)))
   MARK(sel(s(z0), x1)) -> c8(A__SEL(s(mark(z0)), mark(x1)), MARK(x1))
   MARK(sel(0, x1)) -> c8(A__SEL(0, mark(x1)), MARK(x1))
   MARK(sel(x0, s(z0))) -> c8(MARK(s(z0)))
   MARK(sel(cons(z0, z1), x1)) -> c8(MARK(x1))
   A__SEL(s(x0), cons(x1, from(x2))) -> c3(A__SEL(mark(x0), cons(mark(mark(x2)), from(s(mark(x2))))), MARK(x0))
   A__SEL(s(x0), cons(x1, from(from(z0)))) -> c3(A__SEL(mark(x0), a__from(a__from(mark(z0)))), MARK(x0))
   A__SEL(s(x0), cons(x1, from(sel(z0, z1)))) -> c3(A__SEL(mark(x0), a__from(a__sel(mark(z0), mark(z1)))), MARK(x0))
   A__SEL(s(x0), cons(x1, from(cons(z0, z1)))) -> c3(A__SEL(mark(x0), a__from(cons(mark(z0), z1))), MARK(x0))
   A__SEL(s(x0), cons(x1, from(s(z0)))) -> c3(A__SEL(mark(x0), a__from(s(mark(z0)))), MARK(x0))
   A__SEL(s(x0), cons(x1, from(0))) -> c3(A__SEL(mark(x0), a__from(0)), MARK(x0))
   A__SEL(s(from(z0)), cons(x1, from(x2))) -> c3(A__SEL(a__from(mark(z0)), a__from(mark(x2))), MARK(from(z0)))
   A__SEL(s(sel(z0, z1)), cons(x1, from(x2))) -> c3(A__SEL(a__sel(mark(z0), mark(z1)), a__from(mark(x2))), MARK(sel(z0, z1)))
   A__SEL(s(s(z0)), cons(x1, from(x2))) -> c3(A__SEL(s(mark(z0)), a__from(mark(x2))), MARK(s(z0)))
   A__SEL(s(x0), cons(x1, from(x2))) -> c3(MARK(x0))
   A__SEL(s(cons(z0, z1)), cons(x1, from(x2))) -> c3(MARK(cons(z0, z1)))
   A__SEL(s(0), cons(x1, from(x2))) -> c3(A__SEL(0, a__from(mark(x2))))
   A__SEL(s(x0), cons(x1, sel(x2, from(z0)))) -> c3(A__SEL(mark(x0), a__sel(mark(x2), a__from(mark(z0)))), MARK(x0))
   A__SEL(s(x0), cons(x1, sel(x2, sel(z0, z1)))) -> c3(A__SEL(mark(x0), a__sel(mark(x2), a__sel(mark(z0), mark(z1)))), MARK(x0))
   A__SEL(s(x0), cons(x1, sel(x2, cons(z0, z1)))) -> c3(A__SEL(mark(x0), a__sel(mark(x2), cons(mark(z0), z1))), MARK(x0))
   A__SEL(s(x0), cons(x1, sel(x2, s(z0)))) -> c3(A__SEL(mark(x0), a__sel(mark(x2), s(mark(z0)))), MARK(x0))
   A__SEL(s(x0), cons(x1, sel(x2, 0))) -> c3(A__SEL(mark(x0), a__sel(mark(x2), 0)), MARK(x0))
   A__SEL(s(x0), cons(x1, sel(from(z0), x3))) -> c3(A__SEL(mark(x0), a__sel(a__from(mark(z0)), mark(x3))), MARK(x0))
   A__SEL(s(x0), cons(x1, sel(sel(z0, z1), x3))) -> c3(A__SEL(mark(x0), a__sel(a__sel(mark(z0), mark(z1)), mark(x3))), MARK(x0))
   A__SEL(s(x0), cons(x1, sel(cons(z0, z1), x3))) -> c3(A__SEL(mark(x0), a__sel(cons(mark(z0), z1), mark(x3))), MARK(x0))
   A__SEL(s(x0), cons(x1, sel(s(z0), x3))) -> c3(A__SEL(mark(x0), a__sel(s(mark(z0)), mark(x3))), MARK(x0))
   A__SEL(s(x0), cons(x1, sel(0, x3))) -> c3(A__SEL(mark(x0), a__sel(0, mark(x3))), MARK(x0))
   A__SEL(s(from(z0)), cons(x1, sel(x2, x3))) -> c3(A__SEL(a__from(mark(z0)), a__sel(mark(x2), mark(x3))), MARK(from(z0)))
   A__SEL(s(sel(z0, z1)), cons(x1, sel(x2, x3))) -> c3(A__SEL(a__sel(mark(z0), mark(z1)), a__sel(mark(x2), mark(x3))), MARK(sel(z0, z1)))
   A__SEL(s(s(z0)), cons(x1, sel(x2, x3))) -> c3(A__SEL(s(mark(z0)), a__sel(mark(x2), mark(x3))), MARK(s(z0)))
   A__SEL(s(x0), cons(x1, sel(x2, x3))) -> c3(MARK(x0))
   A__SEL(s(cons(z0, z1)), cons(x1, sel(x2, x3))) -> c3(MARK(cons(z0, z1)))
   A__SEL(s(0), cons(x1, sel(x2, x3))) -> c3(A__SEL(0, a__sel(mark(x2), mark(x3))))
   A__SEL(s(x0), cons(x1, cons(from(z0), x3))) -> c3(A__SEL(mark(x0), cons(a__from(mark(z0)), x3)), MARK(x0))
   A__SEL(s(x0), cons(x1, cons(sel(z0, z1), x3))) -> c3(A__SEL(mark(x0), cons(a__sel(mark(z0), mark(z1)), x3)), MARK(x0))
   A__SEL(s(x0), cons(x1, cons(cons(z0, z1), x3))) -> c3(A__SEL(mark(x0), cons(cons(mark(z0), z1), x3)), MARK(x0))
   A__SEL(s(x0), cons(x1, cons(s(z0), x3))) -> c3(A__SEL(mark(x0), cons(s(mark(z0)), x3)), MARK(x0))
   A__SEL(s(x0), cons(x1, cons(0, x3))) -> c3(A__SEL(mark(x0), cons(0, x3)), MARK(x0))
   A__SEL(s(from(z0)), cons(x1, cons(x2, x3))) -> c3(A__SEL(a__from(mark(z0)), cons(mark(x2), x3)), MARK(from(z0)))
   A__SEL(s(sel(z0, z1)), cons(x1, cons(x2, x3))) -> c3(A__SEL(a__sel(mark(z0), mark(z1)), cons(mark(x2), x3)), MARK(sel(z0, z1)))
   A__SEL(s(s(z0)), cons(x1, cons(x2, x3))) -> c3(A__SEL(s(mark(z0)), cons(mark(x2), x3)), MARK(s(z0)))
   A__SEL(s(cons(z0, z1)), cons(x1, cons(x2, x3))) -> c3(MARK(cons(z0, z1)))
   A__SEL(s(0), cons(x1, cons(x2, x3))) -> c3(A__SEL(0, cons(mark(x2), x3)))
   A__SEL(s(from(from(z0))), cons(x1, x2)) -> c3(A__SEL(a__from(a__from(mark(z0))), mark(x2)), MARK(from(from(z0))))
   A__SEL(s(from(sel(z0, z1))), cons(x1, x2)) -> c3(A__SEL(a__from(a__sel(mark(z0), mark(z1))), mark(x2)), MARK(from(sel(z0, z1))))
   A__SEL(s(from(cons(z0, z1))), cons(x1, x2)) -> c3(A__SEL(a__from(cons(mark(z0), z1)), mark(x2)), MARK(from(cons(z0, z1))))
   A__SEL(s(from(s(z0))), cons(x1, x2)) -> c3(A__SEL(a__from(s(mark(z0))), mark(x2)), MARK(from(s(z0))))
   A__SEL(s(from(0)), cons(x1, x2)) -> c3(A__SEL(a__from(0), mark(x2)), MARK(from(0)))
   A__SEL(s(from(x0)), cons(x1, x2)) -> c3(MARK(from(x0)))
   A__SEL(s(from(x0)), cons(x1, s(z0))) -> c3(MARK(from(x0)))
   A__SEL(s(from(x0)), cons(x1, 0)) -> c3(MARK(from(x0)))
   A__SEL(s(sel(x0, from(z0))), cons(x2, x3)) -> c3(A__SEL(a__sel(mark(x0), a__from(mark(z0))), mark(x3)), MARK(sel(x0, from(z0))))
   A__SEL(s(sel(x0, sel(z0, z1))), cons(x2, x3)) -> c3(A__SEL(a__sel(mark(x0), a__sel(mark(z0), mark(z1))), mark(x3)), MARK(sel(x0, sel(z0, z1))))
   A__SEL(s(sel(x0, cons(z0, z1))), cons(x2, x3)) -> c3(A__SEL(a__sel(mark(x0), cons(mark(z0), z1)), mark(x3)), MARK(sel(x0, cons(z0, z1))))
   A__SEL(s(sel(x0, s(z0))), cons(x2, x3)) -> c3(A__SEL(a__sel(mark(x0), s(mark(z0))), mark(x3)), MARK(sel(x0, s(z0))))
   A__SEL(s(sel(x0, 0)), cons(x2, x3)) -> c3(A__SEL(a__sel(mark(x0), 0), mark(x3)), MARK(sel(x0, 0)))
   A__SEL(s(sel(from(z0), x1)), cons(x2, x3)) -> c3(A__SEL(a__sel(a__from(mark(z0)), mark(x1)), mark(x3)), MARK(sel(from(z0), x1)))
   A__SEL(s(sel(sel(z0, z1), x1)), cons(x2, x3)) -> c3(A__SEL(a__sel(a__sel(mark(z0), mark(z1)), mark(x1)), mark(x3)), MARK(sel(sel(z0, z1), x1)))
   A__SEL(s(sel(cons(z0, z1), x1)), cons(x2, x3)) -> c3(A__SEL(a__sel(cons(mark(z0), z1), mark(x1)), mark(x3)), MARK(sel(cons(z0, z1), x1)))
   A__SEL(s(sel(s(z0), x1)), cons(x2, x3)) -> c3(A__SEL(a__sel(s(mark(z0)), mark(x1)), mark(x3)), MARK(sel(s(z0), x1)))
   A__SEL(s(sel(0, x1)), cons(x2, x3)) -> c3(A__SEL(a__sel(0, mark(x1)), mark(x3)), MARK(sel(0, x1)))
   A__SEL(s(sel(x0, x1)), cons(x2, s(z0))) -> c3(MARK(sel(x0, x1)))
   A__SEL(s(sel(x0, x1)), cons(x2, 0)) -> c3(MARK(sel(x0, x1)))
   A__SEL(s(sel(x0, x1)), cons(x2, x3)) -> c3(MARK(sel(x0, x1)))
   A__SEL(s(s(from(z0))), cons(x1, x2)) -> c3(A__SEL(s(a__from(mark(z0))), mark(x2)), MARK(s(from(z0))))
   A__SEL(s(s(sel(z0, z1))), cons(x1, x2)) -> c3(A__SEL(s(a__sel(mark(z0), mark(z1))), mark(x2)), MARK(s(sel(z0, z1))))
   A__SEL(s(s(cons(z0, z1))), cons(x1, x2)) -> c3(A__SEL(s(cons(mark(z0), z1)), mark(x2)), MARK(s(cons(z0, z1))))
   A__SEL(s(s(s(z0))), cons(x1, x2)) -> c3(A__SEL(s(s(mark(z0))), mark(x2)), MARK(s(s(z0))))
   A__SEL(s(s(0)), cons(x1, x2)) -> c3(A__SEL(s(0), mark(x2)), MARK(s(0)))
   A__SEL(s(s(x0)), cons(x1, x2)) -> c3(MARK(s(x0)))
   A__SEL(s(s(x0)), cons(x1, s(z0))) -> c3(MARK(s(x0)))
   A__SEL(s(s(x0)), cons(x1, 0)) -> c3(MARK(s(x0)))
   A__SEL(s(x0), cons(x1, from(x2))) -> c4(A__SEL(mark(x0), cons(mark(mark(x2)), from(s(mark(x2))))), MARK(from(x2)))
   A__SEL(s(x0), cons(x1, from(from(z0)))) -> c4(A__SEL(mark(x0), a__from(a__from(mark(z0)))), MARK(from(from(z0))))
   A__SEL(s(x0), cons(x1, from(sel(z0, z1)))) -> c4(A__SEL(mark(x0), a__from(a__sel(mark(z0), mark(z1)))), MARK(from(sel(z0, z1))))
   A__SEL(s(x0), cons(x1, from(cons(z0, z1)))) -> c4(A__SEL(mark(x0), a__from(cons(mark(z0), z1))), MARK(from(cons(z0, z1))))
   A__SEL(s(x0), cons(x1, from(s(z0)))) -> c4(A__SEL(mark(x0), a__from(s(mark(z0)))), MARK(from(s(z0))))
   A__SEL(s(x0), cons(x1, from(0))) -> c4(A__SEL(mark(x0), a__from(0)), MARK(from(0)))
   A__SEL(s(from(z0)), cons(x1, from(x2))) -> c4(A__SEL(a__from(mark(z0)), a__from(mark(x2))), MARK(from(x2)))
   A__SEL(s(sel(z0, z1)), cons(x1, from(x2))) -> c4(A__SEL(a__sel(mark(z0), mark(z1)), a__from(mark(x2))), MARK(from(x2)))
   A__SEL(s(s(z0)), cons(x1, from(x2))) -> c4(A__SEL(s(mark(z0)), a__from(mark(x2))), MARK(from(x2)))
   A__SEL(s(0), cons(x1, from(x2))) -> c4(A__SEL(0, a__from(mark(x2))), MARK(from(x2)))
   A__SEL(s(x0), cons(x1, from(x2))) -> c4(MARK(from(x2)))
   A__SEL(s(cons(z0, z1)), cons(x1, from(x2))) -> c4(MARK(from(x2)))
   A__SEL(s(x0), cons(x1, sel(x2, from(z0)))) -> c4(A__SEL(mark(x0), a__sel(mark(x2), a__from(mark(z0)))), MARK(sel(x2, from(z0))))
   A__SEL(s(x0), cons(x1, sel(x2, sel(z0, z1)))) -> c4(A__SEL(mark(x0), a__sel(mark(x2), a__sel(mark(z0), mark(z1)))), MARK(sel(x2, sel(z0, z1))))
   A__SEL(s(x0), cons(x1, sel(x2, cons(z0, z1)))) -> c4(A__SEL(mark(x0), a__sel(mark(x2), cons(mark(z0), z1))), MARK(sel(x2, cons(z0, z1))))
   A__SEL(s(x0), cons(x1, sel(x2, s(z0)))) -> c4(A__SEL(mark(x0), a__sel(mark(x2), s(mark(z0)))), MARK(sel(x2, s(z0))))
   A__SEL(s(x0), cons(x1, sel(x2, 0))) -> c4(A__SEL(mark(x0), a__sel(mark(x2), 0)), MARK(sel(x2, 0)))
   A__SEL(s(x0), cons(x1, sel(from(z0), x3))) -> c4(A__SEL(mark(x0), a__sel(a__from(mark(z0)), mark(x3))), MARK(sel(from(z0), x3)))
   A__SEL(s(x0), cons(x1, sel(sel(z0, z1), x3))) -> c4(A__SEL(mark(x0), a__sel(a__sel(mark(z0), mark(z1)), mark(x3))), MARK(sel(sel(z0, z1), x3)))
   A__SEL(s(x0), cons(x1, sel(cons(z0, z1), x3))) -> c4(A__SEL(mark(x0), a__sel(cons(mark(z0), z1), mark(x3))), MARK(sel(cons(z0, z1), x3)))
   A__SEL(s(x0), cons(x1, sel(s(z0), x3))) -> c4(A__SEL(mark(x0), a__sel(s(mark(z0)), mark(x3))), MARK(sel(s(z0), x3)))
   A__SEL(s(x0), cons(x1, sel(0, x3))) -> c4(A__SEL(mark(x0), a__sel(0, mark(x3))), MARK(sel(0, x3)))
   A__SEL(s(from(z0)), cons(x1, sel(x2, x3))) -> c4(A__SEL(a__from(mark(z0)), a__sel(mark(x2), mark(x3))), MARK(sel(x2, x3)))
   A__SEL(s(sel(z0, z1)), cons(x1, sel(x2, x3))) -> c4(A__SEL(a__sel(mark(z0), mark(z1)), a__sel(mark(x2), mark(x3))), MARK(sel(x2, x3)))
   A__SEL(s(s(z0)), cons(x1, sel(x2, x3))) -> c4(A__SEL(s(mark(z0)), a__sel(mark(x2), mark(x3))), MARK(sel(x2, x3)))
   A__SEL(s(0), cons(x1, sel(x2, x3))) -> c4(A__SEL(0, a__sel(mark(x2), mark(x3))), MARK(sel(x2, x3)))
   A__SEL(s(x0), cons(x1, sel(x2, x3))) -> c4(MARK(sel(x2, x3)))
   A__SEL(s(cons(z0, z1)), cons(x1, sel(x2, x3))) -> c4(MARK(sel(x2, x3)))
   A__SEL(s(x0), cons(x1, cons(from(z0), x3))) -> c4(A__SEL(mark(x0), cons(a__from(mark(z0)), x3)), MARK(cons(from(z0), x3)))
   A__SEL(s(x0), cons(x1, cons(sel(z0, z1), x3))) -> c4(A__SEL(mark(x0), cons(a__sel(mark(z0), mark(z1)), x3)), MARK(cons(sel(z0, z1), x3)))
   A__SEL(s(x0), cons(x1, cons(cons(z0, z1), x3))) -> c4(A__SEL(mark(x0), cons(cons(mark(z0), z1), x3)), MARK(cons(cons(z0, z1), x3)))
   A__SEL(s(x0), cons(x1, cons(s(z0), x3))) -> c4(A__SEL(mark(x0), cons(s(mark(z0)), x3)), MARK(cons(s(z0), x3)))
   A__SEL(s(x0), cons(x1, cons(0, x3))) -> c4(A__SEL(mark(x0), cons(0, x3)), MARK(cons(0, x3)))
   A__SEL(s(from(z0)), cons(x1, cons(x2, x3))) -> c4(A__SEL(a__from(mark(z0)), cons(mark(x2), x3)), MARK(cons(x2, x3)))
   A__SEL(s(sel(z0, z1)), cons(x1, cons(x2, x3))) -> c4(A__SEL(a__sel(mark(z0), mark(z1)), cons(mark(x2), x3)), MARK(cons(x2, x3)))
   A__SEL(s(s(z0)), cons(x1, cons(x2, x3))) -> c4(A__SEL(s(mark(z0)), cons(mark(x2), x3)), MARK(cons(x2, x3)))
   A__SEL(s(0), cons(x1, cons(x2, x3))) -> c4(A__SEL(0, cons(mark(x2), x3)), MARK(cons(x2, x3)))
   A__SEL(s(x0), cons(x1, cons(x2, x3))) -> c4(MARK(cons(x2, x3)))
   A__SEL(s(cons(z0, z1)), cons(x1, cons(x2, x3))) -> c4(MARK(cons(x2, x3)))
   A__SEL(s(from(from(z0))), cons(x1, x2)) -> c4(A__SEL(a__from(a__from(mark(z0))), mark(x2)), MARK(x2))
   A__SEL(s(from(sel(z0, z1))), cons(x1, x2)) -> c4(A__SEL(a__from(a__sel(mark(z0), mark(z1))), mark(x2)), MARK(x2))
   A__SEL(s(from(cons(z0, z1))), cons(x1, x2)) -> c4(A__SEL(a__from(cons(mark(z0), z1)), mark(x2)), MARK(x2))
   A__SEL(s(from(s(z0))), cons(x1, x2)) -> c4(A__SEL(a__from(s(mark(z0))), mark(x2)), MARK(x2))
   A__SEL(s(from(0)), cons(x1, x2)) -> c4(A__SEL(a__from(0), mark(x2)), MARK(x2))
   A__SEL(s(from(x0)), cons(x1, s(z0))) -> c4(MARK(s(z0)))
   A__SEL(s(from(x0)), cons(x1, x2)) -> c4(MARK(x2))
   A__SEL(s(sel(x0, from(z0))), cons(x2, x3)) -> c4(A__SEL(a__sel(mark(x0), a__from(mark(z0))), mark(x3)), MARK(x3))
   A__SEL(s(sel(x0, sel(z0, z1))), cons(x2, x3)) -> c4(A__SEL(a__sel(mark(x0), a__sel(mark(z0), mark(z1))), mark(x3)), MARK(x3))
   A__SEL(s(sel(x0, cons(z0, z1))), cons(x2, x3)) -> c4(A__SEL(a__sel(mark(x0), cons(mark(z0), z1)), mark(x3)), MARK(x3))
   A__SEL(s(sel(x0, s(z0))), cons(x2, x3)) -> c4(A__SEL(a__sel(mark(x0), s(mark(z0))), mark(x3)), MARK(x3))
   A__SEL(s(sel(x0, 0)), cons(x2, x3)) -> c4(A__SEL(a__sel(mark(x0), 0), mark(x3)), MARK(x3))
   A__SEL(s(sel(from(z0), x1)), cons(x2, x3)) -> c4(A__SEL(a__sel(a__from(mark(z0)), mark(x1)), mark(x3)), MARK(x3))
   A__SEL(s(sel(sel(z0, z1), x1)), cons(x2, x3)) -> c4(A__SEL(a__sel(a__sel(mark(z0), mark(z1)), mark(x1)), mark(x3)), MARK(x3))
   A__SEL(s(sel(cons(z0, z1), x1)), cons(x2, x3)) -> c4(A__SEL(a__sel(cons(mark(z0), z1), mark(x1)), mark(x3)), MARK(x3))
   A__SEL(s(sel(s(z0), x1)), cons(x2, x3)) -> c4(A__SEL(a__sel(s(mark(z0)), mark(x1)), mark(x3)), MARK(x3))
   A__SEL(s(sel(0, x1)), cons(x2, x3)) -> c4(A__SEL(a__sel(0, mark(x1)), mark(x3)), MARK(x3))
   A__SEL(s(sel(x0, x1)), cons(x2, s(z0))) -> c4(MARK(s(z0)))
   A__SEL(s(sel(x0, x1)), cons(x2, x3)) -> c4(MARK(x3))
   A__SEL(s(s(from(z0))), cons(x1, x2)) -> c4(A__SEL(s(a__from(mark(z0))), mark(x2)), MARK(x2))
   A__SEL(s(s(sel(z0, z1))), cons(x1, x2)) -> c4(A__SEL(s(a__sel(mark(z0), mark(z1))), mark(x2)), MARK(x2))
   A__SEL(s(s(cons(z0, z1))), cons(x1, x2)) -> c4(A__SEL(s(cons(mark(z0), z1)), mark(x2)), MARK(x2))
   A__SEL(s(s(s(z0))), cons(x1, x2)) -> c4(A__SEL(s(s(mark(z0))), mark(x2)), MARK(x2))
   A__SEL(s(s(0)), cons(x1, x2)) -> c4(A__SEL(s(0), mark(x2)), MARK(x2))
   A__SEL(s(s(x0)), cons(x1, s(z0))) -> c4(MARK(s(z0)))
   A__SEL(s(0), cons(x0, s(z0))) -> c4(MARK(s(z0)))
   MARK(sel(x0, from(x1))) -> c7(A__SEL(mark(x0), cons(mark(mark(x1)), from(s(mark(x1))))), MARK(x0))
   MARK(sel(x0, from(from(z0)))) -> c7(A__SEL(mark(x0), a__from(a__from(mark(z0)))), MARK(x0))
   MARK(sel(x0, from(sel(z0, z1)))) -> c7(A__SEL(mark(x0), a__from(a__sel(mark(z0), mark(z1)))), MARK(x0))
   MARK(sel(x0, from(cons(z0, z1)))) -> c7(A__SEL(mark(x0), a__from(cons(mark(z0), z1))), MARK(x0))
   MARK(sel(x0, from(s(z0)))) -> c7(A__SEL(mark(x0), a__from(s(mark(z0)))), MARK(x0))
   MARK(sel(x0, from(0))) -> c7(A__SEL(mark(x0), a__from(0)), MARK(x0))
   MARK(sel(from(z0), from(x1))) -> c7(A__SEL(a__from(mark(z0)), a__from(mark(x1))), MARK(from(z0)))
   MARK(sel(sel(z0, z1), from(x1))) -> c7(A__SEL(a__sel(mark(z0), mark(z1)), a__from(mark(x1))), MARK(sel(z0, z1)))
   MARK(sel(s(z0), from(x1))) -> c7(A__SEL(s(mark(z0)), a__from(mark(x1))), MARK(s(z0)))
   MARK(sel(x0, from(x1))) -> c7(MARK(x0))
   MARK(sel(cons(z0, z1), from(x1))) -> c7(MARK(cons(z0, z1)))
   MARK(sel(0, from(x1))) -> c7(A__SEL(0, a__from(mark(x1))))
   MARK(sel(x0, sel(x1, from(z0)))) -> c7(A__SEL(mark(x0), a__sel(mark(x1), a__from(mark(z0)))), MARK(x0))
   MARK(sel(x0, sel(x1, sel(z0, z1)))) -> c7(A__SEL(mark(x0), a__sel(mark(x1), a__sel(mark(z0), mark(z1)))), MARK(x0))
   MARK(sel(x0, sel(x1, cons(z0, z1)))) -> c7(A__SEL(mark(x0), a__sel(mark(x1), cons(mark(z0), z1))), MARK(x0))
   MARK(sel(x0, sel(x1, s(z0)))) -> c7(A__SEL(mark(x0), a__sel(mark(x1), s(mark(z0)))), MARK(x0))
   MARK(sel(x0, sel(x1, 0))) -> c7(A__SEL(mark(x0), a__sel(mark(x1), 0)), MARK(x0))
   MARK(sel(x0, sel(from(z0), x2))) -> c7(A__SEL(mark(x0), a__sel(a__from(mark(z0)), mark(x2))), MARK(x0))
   MARK(sel(x0, sel(sel(z0, z1), x2))) -> c7(A__SEL(mark(x0), a__sel(a__sel(mark(z0), mark(z1)), mark(x2))), MARK(x0))
   MARK(sel(x0, sel(cons(z0, z1), x2))) -> c7(A__SEL(mark(x0), a__sel(cons(mark(z0), z1), mark(x2))), MARK(x0))
   MARK(sel(x0, sel(s(z0), x2))) -> c7(A__SEL(mark(x0), a__sel(s(mark(z0)), mark(x2))), MARK(x0))
   MARK(sel(x0, sel(0, x2))) -> c7(A__SEL(mark(x0), a__sel(0, mark(x2))), MARK(x0))
   MARK(sel(from(z0), sel(x1, x2))) -> c7(A__SEL(a__from(mark(z0)), a__sel(mark(x1), mark(x2))), MARK(from(z0)))
   MARK(sel(sel(z0, z1), sel(x1, x2))) -> c7(A__SEL(a__sel(mark(z0), mark(z1)), a__sel(mark(x1), mark(x2))), MARK(sel(z0, z1)))
   MARK(sel(s(z0), sel(x1, x2))) -> c7(A__SEL(s(mark(z0)), a__sel(mark(x1), mark(x2))), MARK(s(z0)))
   MARK(sel(x0, sel(x1, x2))) -> c7(MARK(x0))
   MARK(sel(cons(z0, z1), sel(x1, x2))) -> c7(MARK(cons(z0, z1)))
   MARK(sel(0, sel(x1, x2))) -> c7(A__SEL(0, a__sel(mark(x1), mark(x2))))
   MARK(sel(x0, cons(from(z0), x2))) -> c7(A__SEL(mark(x0), cons(a__from(mark(z0)), x2)), MARK(x0))
   MARK(sel(x0, cons(sel(z0, z1), x2))) -> c7(A__SEL(mark(x0), cons(a__sel(mark(z0), mark(z1)), x2)), MARK(x0))
   MARK(sel(x0, cons(cons(z0, z1), x2))) -> c7(A__SEL(mark(x0), cons(cons(mark(z0), z1), x2)), MARK(x0))
   MARK(sel(x0, cons(s(z0), x2))) -> c7(A__SEL(mark(x0), cons(s(mark(z0)), x2)), MARK(x0))
   MARK(sel(x0, cons(0, x2))) -> c7(A__SEL(mark(x0), cons(0, x2)), MARK(x0))
   MARK(sel(from(z0), cons(x1, x2))) -> c7(A__SEL(a__from(mark(z0)), cons(mark(x1), x2)), MARK(from(z0)))
   MARK(sel(sel(z0, z1), cons(x1, x2))) -> c7(A__SEL(a__sel(mark(z0), mark(z1)), cons(mark(x1), x2)), MARK(sel(z0, z1)))
   MARK(sel(s(z0), cons(x1, x2))) -> c7(A__SEL(s(mark(z0)), cons(mark(x1), x2)), MARK(s(z0)))
   MARK(sel(cons(z0, z1), cons(x1, x2))) -> c7(MARK(cons(z0, z1)))
   MARK(sel(0, cons(x1, x2))) -> c7(A__SEL(0, cons(mark(x1), x2)))
   MARK(sel(from(from(z0)), x1)) -> c7(A__SEL(a__from(a__from(mark(z0))), mark(x1)), MARK(from(from(z0))))
   MARK(sel(from(sel(z0, z1)), x1)) -> c7(A__SEL(a__from(a__sel(mark(z0), mark(z1))), mark(x1)), MARK(from(sel(z0, z1))))
   MARK(sel(from(cons(z0, z1)), x1)) -> c7(A__SEL(a__from(cons(mark(z0), z1)), mark(x1)), MARK(from(cons(z0, z1))))
   MARK(sel(from(s(z0)), x1)) -> c7(A__SEL(a__from(s(mark(z0))), mark(x1)), MARK(from(s(z0))))
   MARK(sel(from(0), x1)) -> c7(A__SEL(a__from(0), mark(x1)), MARK(from(0)))
   MARK(sel(from(x0), x1)) -> c7(MARK(from(x0)))
   MARK(sel(from(x0), s(z0))) -> c7(MARK(from(x0)))
   MARK(sel(from(x0), 0)) -> c7(MARK(from(x0)))
   MARK(sel(sel(x0, from(z0)), x2)) -> c7(A__SEL(a__sel(mark(x0), a__from(mark(z0))), mark(x2)), MARK(sel(x0, from(z0))))
   MARK(sel(sel(x0, sel(z0, z1)), x2)) -> c7(A__SEL(a__sel(mark(x0), a__sel(mark(z0), mark(z1))), mark(x2)), MARK(sel(x0, sel(z0, z1))))
   MARK(sel(sel(x0, cons(z0, z1)), x2)) -> c7(A__SEL(a__sel(mark(x0), cons(mark(z0), z1)), mark(x2)), MARK(sel(x0, cons(z0, z1))))
   MARK(sel(sel(x0, s(z0)), x2)) -> c7(A__SEL(a__sel(mark(x0), s(mark(z0))), mark(x2)), MARK(sel(x0, s(z0))))
   MARK(sel(sel(x0, 0), x2)) -> c7(A__SEL(a__sel(mark(x0), 0), mark(x2)), MARK(sel(x0, 0)))
   MARK(sel(sel(from(z0), x1), x2)) -> c7(A__SEL(a__sel(a__from(mark(z0)), mark(x1)), mark(x2)), MARK(sel(from(z0), x1)))
   MARK(sel(sel(sel(z0, z1), x1), x2)) -> c7(A__SEL(a__sel(a__sel(mark(z0), mark(z1)), mark(x1)), mark(x2)), MARK(sel(sel(z0, z1), x1)))
   MARK(sel(sel(cons(z0, z1), x1), x2)) -> c7(A__SEL(a__sel(cons(mark(z0), z1), mark(x1)), mark(x2)), MARK(sel(cons(z0, z1), x1)))
   MARK(sel(sel(s(z0), x1), x2)) -> c7(A__SEL(a__sel(s(mark(z0)), mark(x1)), mark(x2)), MARK(sel(s(z0), x1)))
   MARK(sel(sel(0, x1), x2)) -> c7(A__SEL(a__sel(0, mark(x1)), mark(x2)), MARK(sel(0, x1)))
   MARK(sel(sel(x0, x1), s(z0))) -> c7(MARK(sel(x0, x1)))
   MARK(sel(sel(x0, x1), 0)) -> c7(MARK(sel(x0, x1)))
   MARK(sel(sel(x0, x1), x2)) -> c7(MARK(sel(x0, x1)))
   MARK(sel(s(from(z0)), x1)) -> c7(A__SEL(s(a__from(mark(z0))), mark(x1)), MARK(s(from(z0))))
   MARK(sel(s(sel(z0, z1)), x1)) -> c7(A__SEL(s(a__sel(mark(z0), mark(z1))), mark(x1)), MARK(s(sel(z0, z1))))
   MARK(sel(s(cons(z0, z1)), x1)) -> c7(A__SEL(s(cons(mark(z0), z1)), mark(x1)), MARK(s(cons(z0, z1))))
   MARK(sel(s(s(z0)), x1)) -> c7(A__SEL(s(s(mark(z0))), mark(x1)), MARK(s(s(z0))))
   MARK(sel(s(0), x1)) -> c7(A__SEL(s(0), mark(x1)), MARK(s(0)))
   MARK(sel(s(x0), x1)) -> c7(MARK(s(x0)))
   MARK(sel(s(x0), s(z0))) -> c7(MARK(s(x0)))
   MARK(sel(s(x0), 0)) -> c7(MARK(s(x0)))
   MARK(sel(x0, from(x1))) -> c8(A__SEL(mark(x0), cons(mark(mark(x1)), from(s(mark(x1))))), MARK(from(x1)))
   MARK(sel(x0, from(from(z0)))) -> c8(A__SEL(mark(x0), a__from(a__from(mark(z0)))), MARK(from(from(z0))))
   MARK(sel(x0, from(sel(z0, z1)))) -> c8(A__SEL(mark(x0), a__from(a__sel(mark(z0), mark(z1)))), MARK(from(sel(z0, z1))))
   MARK(sel(x0, from(cons(z0, z1)))) -> c8(A__SEL(mark(x0), a__from(cons(mark(z0), z1))), MARK(from(cons(z0, z1))))
   MARK(sel(x0, from(s(z0)))) -> c8(A__SEL(mark(x0), a__from(s(mark(z0)))), MARK(from(s(z0))))
   MARK(sel(x0, from(0))) -> c8(A__SEL(mark(x0), a__from(0)), MARK(from(0)))
   MARK(sel(from(z0), from(x1))) -> c8(A__SEL(a__from(mark(z0)), a__from(mark(x1))), MARK(from(x1)))
   MARK(sel(sel(z0, z1), from(x1))) -> c8(A__SEL(a__sel(mark(z0), mark(z1)), a__from(mark(x1))), MARK(from(x1)))
   MARK(sel(s(z0), from(x1))) -> c8(A__SEL(s(mark(z0)), a__from(mark(x1))), MARK(from(x1)))
   MARK(sel(0, from(x1))) -> c8(A__SEL(0, a__from(mark(x1))), MARK(from(x1)))
   MARK(sel(x0, from(x1))) -> c8(MARK(from(x1)))
   MARK(sel(cons(z0, z1), from(x1))) -> c8(MARK(from(x1)))
   MARK(sel(x0, sel(x1, from(z0)))) -> c8(A__SEL(mark(x0), a__sel(mark(x1), a__from(mark(z0)))), MARK(sel(x1, from(z0))))
   MARK(sel(x0, sel(x1, sel(z0, z1)))) -> c8(A__SEL(mark(x0), a__sel(mark(x1), a__sel(mark(z0), mark(z1)))), MARK(sel(x1, sel(z0, z1))))
   MARK(sel(x0, sel(x1, cons(z0, z1)))) -> c8(A__SEL(mark(x0), a__sel(mark(x1), cons(mark(z0), z1))), MARK(sel(x1, cons(z0, z1))))
   MARK(sel(x0, sel(x1, s(z0)))) -> c8(A__SEL(mark(x0), a__sel(mark(x1), s(mark(z0)))), MARK(sel(x1, s(z0))))
   MARK(sel(x0, sel(x1, 0))) -> c8(A__SEL(mark(x0), a__sel(mark(x1), 0)), MARK(sel(x1, 0)))
   MARK(sel(x0, sel(from(z0), x2))) -> c8(A__SEL(mark(x0), a__sel(a__from(mark(z0)), mark(x2))), MARK(sel(from(z0), x2)))
   MARK(sel(x0, sel(sel(z0, z1), x2))) -> c8(A__SEL(mark(x0), a__sel(a__sel(mark(z0), mark(z1)), mark(x2))), MARK(sel(sel(z0, z1), x2)))
   MARK(sel(x0, sel(cons(z0, z1), x2))) -> c8(A__SEL(mark(x0), a__sel(cons(mark(z0), z1), mark(x2))), MARK(sel(cons(z0, z1), x2)))
   MARK(sel(x0, sel(s(z0), x2))) -> c8(A__SEL(mark(x0), a__sel(s(mark(z0)), mark(x2))), MARK(sel(s(z0), x2)))
   MARK(sel(x0, sel(0, x2))) -> c8(A__SEL(mark(x0), a__sel(0, mark(x2))), MARK(sel(0, x2)))
   MARK(sel(from(z0), sel(x1, x2))) -> c8(A__SEL(a__from(mark(z0)), a__sel(mark(x1), mark(x2))), MARK(sel(x1, x2)))
   MARK(sel(sel(z0, z1), sel(x1, x2))) -> c8(A__SEL(a__sel(mark(z0), mark(z1)), a__sel(mark(x1), mark(x2))), MARK(sel(x1, x2)))
   MARK(sel(s(z0), sel(x1, x2))) -> c8(A__SEL(s(mark(z0)), a__sel(mark(x1), mark(x2))), MARK(sel(x1, x2)))
   MARK(sel(0, sel(x1, x2))) -> c8(A__SEL(0, a__sel(mark(x1), mark(x2))), MARK(sel(x1, x2)))
   MARK(sel(x0, sel(x1, x2))) -> c8(MARK(sel(x1, x2)))
   MARK(sel(cons(z0, z1), sel(x1, x2))) -> c8(MARK(sel(x1, x2)))
   MARK(sel(x0, cons(from(z0), x2))) -> c8(A__SEL(mark(x0), cons(a__from(mark(z0)), x2)), MARK(cons(from(z0), x2)))
   MARK(sel(x0, cons(sel(z0, z1), x2))) -> c8(A__SEL(mark(x0), cons(a__sel(mark(z0), mark(z1)), x2)), MARK(cons(sel(z0, z1), x2)))
   MARK(sel(x0, cons(cons(z0, z1), x2))) -> c8(A__SEL(mark(x0), cons(cons(mark(z0), z1), x2)), MARK(cons(cons(z0, z1), x2)))
   MARK(sel(x0, cons(s(z0), x2))) -> c8(A__SEL(mark(x0), cons(s(mark(z0)), x2)), MARK(cons(s(z0), x2)))
   MARK(sel(x0, cons(0, x2))) -> c8(A__SEL(mark(x0), cons(0, x2)), MARK(cons(0, x2)))
   MARK(sel(from(z0), cons(x1, x2))) -> c8(A__SEL(a__from(mark(z0)), cons(mark(x1), x2)), MARK(cons(x1, x2)))
   MARK(sel(sel(z0, z1), cons(x1, x2))) -> c8(A__SEL(a__sel(mark(z0), mark(z1)), cons(mark(x1), x2)), MARK(cons(x1, x2)))
   MARK(sel(s(z0), cons(x1, x2))) -> c8(A__SEL(s(mark(z0)), cons(mark(x1), x2)), MARK(cons(x1, x2)))
   MARK(sel(0, cons(x1, x2))) -> c8(A__SEL(0, cons(mark(x1), x2)), MARK(cons(x1, x2)))
   MARK(sel(x0, cons(x1, x2))) -> c8(MARK(cons(x1, x2)))
   MARK(sel(cons(z0, z1), cons(x1, x2))) -> c8(MARK(cons(x1, x2)))
   MARK(sel(from(from(z0)), x1)) -> c8(A__SEL(a__from(a__from(mark(z0))), mark(x1)), MARK(x1))
   MARK(sel(from(sel(z0, z1)), x1)) -> c8(A__SEL(a__from(a__sel(mark(z0), mark(z1))), mark(x1)), MARK(x1))
   MARK(sel(from(cons(z0, z1)), x1)) -> c8(A__SEL(a__from(cons(mark(z0), z1)), mark(x1)), MARK(x1))
   MARK(sel(from(s(z0)), x1)) -> c8(A__SEL(a__from(s(mark(z0))), mark(x1)), MARK(x1))
   MARK(sel(from(0), x1)) -> c8(A__SEL(a__from(0), mark(x1)), MARK(x1))
   MARK(sel(from(x0), s(z0))) -> c8(MARK(s(z0)))
   MARK(sel(from(x0), x1)) -> c8(MARK(x1))
   MARK(sel(sel(x0, x1), s(z0))) -> c8(A__SEL(a__sel(mark(x0), mark(x1)), s(mark(z0))), MARK(s(z0)))
   MARK(sel(sel(x0, x1), 0)) -> c8(A__SEL(a__sel(mark(x0), mark(x1)), 0), MARK(0))
   MARK(sel(sel(x0, x1), x2)) -> c8(A__SEL(sel(mark(x0), mark(x1)), mark(x2)), MARK(x2))
   MARK(sel(sel(x0, from(z0)), x2)) -> c8(A__SEL(a__sel(mark(x0), a__from(mark(z0))), mark(x2)), MARK(x2))
   MARK(sel(sel(x0, sel(z0, z1)), x2)) -> c8(A__SEL(a__sel(mark(x0), a__sel(mark(z0), mark(z1))), mark(x2)), MARK(x2))
   MARK(sel(sel(x0, cons(z0, z1)), x2)) -> c8(A__SEL(a__sel(mark(x0), cons(mark(z0), z1)), mark(x2)), MARK(x2))
   MARK(sel(sel(x0, s(z0)), x2)) -> c8(A__SEL(a__sel(mark(x0), s(mark(z0))), mark(x2)), MARK(x2))
   MARK(sel(sel(x0, 0), x2)) -> c8(A__SEL(a__sel(mark(x0), 0), mark(x2)), MARK(x2))
   MARK(sel(sel(from(z0), x1), x2)) -> c8(A__SEL(a__sel(a__from(mark(z0)), mark(x1)), mark(x2)), MARK(x2))
   MARK(sel(sel(sel(z0, z1), x1), x2)) -> c8(A__SEL(a__sel(a__sel(mark(z0), mark(z1)), mark(x1)), mark(x2)), MARK(x2))
   MARK(sel(sel(cons(z0, z1), x1), x2)) -> c8(A__SEL(a__sel(cons(mark(z0), z1), mark(x1)), mark(x2)), MARK(x2))
   MARK(sel(sel(s(z0), x1), x2)) -> c8(A__SEL(a__sel(s(mark(z0)), mark(x1)), mark(x2)), MARK(x2))
   MARK(sel(sel(0, x1), x2)) -> c8(A__SEL(a__sel(0, mark(x1)), mark(x2)), MARK(x2))
K tuples:none
Defined Rule Symbols:   a__from_1, a__sel_2, mark_1

Defined Pair Symbols:   A__FROM_1, A__SEL_2, MARK_1

Compound Symbols:   c_1, c2_1, c6_2, c9_1, c10_1, c3_1, c4_1, c7_1, c8_2, c8_1, c3_2, c4_2, c7_2


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

(189) CdtLeafRemovalProof (BOTH BOUNDS(ID, ID))
Removed 1 trailing nodes:
   MARK(sel(sel(x0, x1), 0)) -> c8(A__SEL(a__sel(mark(x0), mark(x1)), 0), MARK(0))

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

(190)
Obligation:
Complexity Dependency Tuples Problem

Rules:
   a__from(z0) -> cons(mark(z0), from(s(z0)))
   a__from(z0) -> from(z0)
   a__sel(0, cons(z0, z1)) -> mark(z0)
   a__sel(s(z0), cons(z1, z2)) -> a__sel(mark(z0), mark(z2))
   a__sel(z0, z1) -> sel(z0, z1)
   mark(from(z0)) -> a__from(mark(z0))
   mark(sel(z0, z1)) -> a__sel(mark(z0), mark(z1))
   mark(cons(z0, z1)) -> cons(mark(z0), z1)
   mark(s(z0)) -> s(mark(z0))
   mark(0) -> 0
Tuples:
   A__FROM(z0) -> c(MARK(z0))
   A__SEL(0, cons(z0, z1)) -> c2(MARK(z0))
   MARK(from(z0)) -> c6(A__FROM(mark(z0)), MARK(z0))
   MARK(cons(z0, z1)) -> c9(MARK(z0))
   MARK(s(z0)) -> c10(MARK(z0))
   A__SEL(s(x0), cons(x1, s(z0))) -> c3(MARK(x0))
   A__SEL(s(x0), cons(x1, 0)) -> c3(MARK(x0))
   A__SEL(s(cons(z0, z1)), cons(x1, x2)) -> c3(MARK(cons(z0, z1)))
   A__SEL(s(x0), cons(x1, s(z0))) -> c4(MARK(s(z0)))
   A__SEL(s(cons(z0, z1)), cons(x1, x2)) -> c4(MARK(x2))
   MARK(sel(x0, s(z0))) -> c7(MARK(x0))
   MARK(sel(x0, 0)) -> c7(MARK(x0))
   MARK(sel(cons(z0, z1), x1)) -> c7(MARK(cons(z0, z1)))
   MARK(sel(s(z0), x1)) -> c8(A__SEL(s(mark(z0)), mark(x1)), MARK(x1))
   MARK(sel(0, x1)) -> c8(A__SEL(0, mark(x1)), MARK(x1))
   MARK(sel(x0, s(z0))) -> c8(MARK(s(z0)))
   MARK(sel(cons(z0, z1), x1)) -> c8(MARK(x1))
   A__SEL(s(x0), cons(x1, from(x2))) -> c3(A__SEL(mark(x0), cons(mark(mark(x2)), from(s(mark(x2))))), MARK(x0))
   A__SEL(s(x0), cons(x1, from(from(z0)))) -> c3(A__SEL(mark(x0), a__from(a__from(mark(z0)))), MARK(x0))
   A__SEL(s(x0), cons(x1, from(sel(z0, z1)))) -> c3(A__SEL(mark(x0), a__from(a__sel(mark(z0), mark(z1)))), MARK(x0))
   A__SEL(s(x0), cons(x1, from(cons(z0, z1)))) -> c3(A__SEL(mark(x0), a__from(cons(mark(z0), z1))), MARK(x0))
   A__SEL(s(x0), cons(x1, from(s(z0)))) -> c3(A__SEL(mark(x0), a__from(s(mark(z0)))), MARK(x0))
   A__SEL(s(x0), cons(x1, from(0))) -> c3(A__SEL(mark(x0), a__from(0)), MARK(x0))
   A__SEL(s(from(z0)), cons(x1, from(x2))) -> c3(A__SEL(a__from(mark(z0)), a__from(mark(x2))), MARK(from(z0)))
   A__SEL(s(sel(z0, z1)), cons(x1, from(x2))) -> c3(A__SEL(a__sel(mark(z0), mark(z1)), a__from(mark(x2))), MARK(sel(z0, z1)))
   A__SEL(s(s(z0)), cons(x1, from(x2))) -> c3(A__SEL(s(mark(z0)), a__from(mark(x2))), MARK(s(z0)))
   A__SEL(s(x0), cons(x1, from(x2))) -> c3(MARK(x0))
   A__SEL(s(cons(z0, z1)), cons(x1, from(x2))) -> c3(MARK(cons(z0, z1)))
   A__SEL(s(0), cons(x1, from(x2))) -> c3(A__SEL(0, a__from(mark(x2))))
   A__SEL(s(x0), cons(x1, sel(x2, from(z0)))) -> c3(A__SEL(mark(x0), a__sel(mark(x2), a__from(mark(z0)))), MARK(x0))
   A__SEL(s(x0), cons(x1, sel(x2, sel(z0, z1)))) -> c3(A__SEL(mark(x0), a__sel(mark(x2), a__sel(mark(z0), mark(z1)))), MARK(x0))
   A__SEL(s(x0), cons(x1, sel(x2, cons(z0, z1)))) -> c3(A__SEL(mark(x0), a__sel(mark(x2), cons(mark(z0), z1))), MARK(x0))
   A__SEL(s(x0), cons(x1, sel(x2, s(z0)))) -> c3(A__SEL(mark(x0), a__sel(mark(x2), s(mark(z0)))), MARK(x0))
   A__SEL(s(x0), cons(x1, sel(x2, 0))) -> c3(A__SEL(mark(x0), a__sel(mark(x2), 0)), MARK(x0))
   A__SEL(s(x0), cons(x1, sel(from(z0), x3))) -> c3(A__SEL(mark(x0), a__sel(a__from(mark(z0)), mark(x3))), MARK(x0))
   A__SEL(s(x0), cons(x1, sel(sel(z0, z1), x3))) -> c3(A__SEL(mark(x0), a__sel(a__sel(mark(z0), mark(z1)), mark(x3))), MARK(x0))
   A__SEL(s(x0), cons(x1, sel(cons(z0, z1), x3))) -> c3(A__SEL(mark(x0), a__sel(cons(mark(z0), z1), mark(x3))), MARK(x0))
   A__SEL(s(x0), cons(x1, sel(s(z0), x3))) -> c3(A__SEL(mark(x0), a__sel(s(mark(z0)), mark(x3))), MARK(x0))
   A__SEL(s(x0), cons(x1, sel(0, x3))) -> c3(A__SEL(mark(x0), a__sel(0, mark(x3))), MARK(x0))
   A__SEL(s(from(z0)), cons(x1, sel(x2, x3))) -> c3(A__SEL(a__from(mark(z0)), a__sel(mark(x2), mark(x3))), MARK(from(z0)))
   A__SEL(s(sel(z0, z1)), cons(x1, sel(x2, x3))) -> c3(A__SEL(a__sel(mark(z0), mark(z1)), a__sel(mark(x2), mark(x3))), MARK(sel(z0, z1)))
   A__SEL(s(s(z0)), cons(x1, sel(x2, x3))) -> c3(A__SEL(s(mark(z0)), a__sel(mark(x2), mark(x3))), MARK(s(z0)))
   A__SEL(s(x0), cons(x1, sel(x2, x3))) -> c3(MARK(x0))
   A__SEL(s(cons(z0, z1)), cons(x1, sel(x2, x3))) -> c3(MARK(cons(z0, z1)))
   A__SEL(s(0), cons(x1, sel(x2, x3))) -> c3(A__SEL(0, a__sel(mark(x2), mark(x3))))
   A__SEL(s(x0), cons(x1, cons(from(z0), x3))) -> c3(A__SEL(mark(x0), cons(a__from(mark(z0)), x3)), MARK(x0))
   A__SEL(s(x0), cons(x1, cons(sel(z0, z1), x3))) -> c3(A__SEL(mark(x0), cons(a__sel(mark(z0), mark(z1)), x3)), MARK(x0))
   A__SEL(s(x0), cons(x1, cons(cons(z0, z1), x3))) -> c3(A__SEL(mark(x0), cons(cons(mark(z0), z1), x3)), MARK(x0))
   A__SEL(s(x0), cons(x1, cons(s(z0), x3))) -> c3(A__SEL(mark(x0), cons(s(mark(z0)), x3)), MARK(x0))
   A__SEL(s(x0), cons(x1, cons(0, x3))) -> c3(A__SEL(mark(x0), cons(0, x3)), MARK(x0))
   A__SEL(s(from(z0)), cons(x1, cons(x2, x3))) -> c3(A__SEL(a__from(mark(z0)), cons(mark(x2), x3)), MARK(from(z0)))
   A__SEL(s(sel(z0, z1)), cons(x1, cons(x2, x3))) -> c3(A__SEL(a__sel(mark(z0), mark(z1)), cons(mark(x2), x3)), MARK(sel(z0, z1)))
   A__SEL(s(s(z0)), cons(x1, cons(x2, x3))) -> c3(A__SEL(s(mark(z0)), cons(mark(x2), x3)), MARK(s(z0)))
   A__SEL(s(cons(z0, z1)), cons(x1, cons(x2, x3))) -> c3(MARK(cons(z0, z1)))
   A__SEL(s(0), cons(x1, cons(x2, x3))) -> c3(A__SEL(0, cons(mark(x2), x3)))
   A__SEL(s(from(from(z0))), cons(x1, x2)) -> c3(A__SEL(a__from(a__from(mark(z0))), mark(x2)), MARK(from(from(z0))))
   A__SEL(s(from(sel(z0, z1))), cons(x1, x2)) -> c3(A__SEL(a__from(a__sel(mark(z0), mark(z1))), mark(x2)), MARK(from(sel(z0, z1))))
   A__SEL(s(from(cons(z0, z1))), cons(x1, x2)) -> c3(A__SEL(a__from(cons(mark(z0), z1)), mark(x2)), MARK(from(cons(z0, z1))))
   A__SEL(s(from(s(z0))), cons(x1, x2)) -> c3(A__SEL(a__from(s(mark(z0))), mark(x2)), MARK(from(s(z0))))
   A__SEL(s(from(0)), cons(x1, x2)) -> c3(A__SEL(a__from(0), mark(x2)), MARK(from(0)))
   A__SEL(s(from(x0)), cons(x1, x2)) -> c3(MARK(from(x0)))
   A__SEL(s(from(x0)), cons(x1, s(z0))) -> c3(MARK(from(x0)))
   A__SEL(s(from(x0)), cons(x1, 0)) -> c3(MARK(from(x0)))
   A__SEL(s(sel(x0, from(z0))), cons(x2, x3)) -> c3(A__SEL(a__sel(mark(x0), a__from(mark(z0))), mark(x3)), MARK(sel(x0, from(z0))))
   A__SEL(s(sel(x0, sel(z0, z1))), cons(x2, x3)) -> c3(A__SEL(a__sel(mark(x0), a__sel(mark(z0), mark(z1))), mark(x3)), MARK(sel(x0, sel(z0, z1))))
   A__SEL(s(sel(x0, cons(z0, z1))), cons(x2, x3)) -> c3(A__SEL(a__sel(mark(x0), cons(mark(z0), z1)), mark(x3)), MARK(sel(x0, cons(z0, z1))))
   A__SEL(s(sel(x0, s(z0))), cons(x2, x3)) -> c3(A__SEL(a__sel(mark(x0), s(mark(z0))), mark(x3)), MARK(sel(x0, s(z0))))
   A__SEL(s(sel(x0, 0)), cons(x2, x3)) -> c3(A__SEL(a__sel(mark(x0), 0), mark(x3)), MARK(sel(x0, 0)))
   A__SEL(s(sel(from(z0), x1)), cons(x2, x3)) -> c3(A__SEL(a__sel(a__from(mark(z0)), mark(x1)), mark(x3)), MARK(sel(from(z0), x1)))
   A__SEL(s(sel(sel(z0, z1), x1)), cons(x2, x3)) -> c3(A__SEL(a__sel(a__sel(mark(z0), mark(z1)), mark(x1)), mark(x3)), MARK(sel(sel(z0, z1), x1)))
   A__SEL(s(sel(cons(z0, z1), x1)), cons(x2, x3)) -> c3(A__SEL(a__sel(cons(mark(z0), z1), mark(x1)), mark(x3)), MARK(sel(cons(z0, z1), x1)))
   A__SEL(s(sel(s(z0), x1)), cons(x2, x3)) -> c3(A__SEL(a__sel(s(mark(z0)), mark(x1)), mark(x3)), MARK(sel(s(z0), x1)))
   A__SEL(s(sel(0, x1)), cons(x2, x3)) -> c3(A__SEL(a__sel(0, mark(x1)), mark(x3)), MARK(sel(0, x1)))
   A__SEL(s(sel(x0, x1)), cons(x2, s(z0))) -> c3(MARK(sel(x0, x1)))
   A__SEL(s(sel(x0, x1)), cons(x2, 0)) -> c3(MARK(sel(x0, x1)))
   A__SEL(s(sel(x0, x1)), cons(x2, x3)) -> c3(MARK(sel(x0, x1)))
   A__SEL(s(s(from(z0))), cons(x1, x2)) -> c3(A__SEL(s(a__from(mark(z0))), mark(x2)), MARK(s(from(z0))))
   A__SEL(s(s(sel(z0, z1))), cons(x1, x2)) -> c3(A__SEL(s(a__sel(mark(z0), mark(z1))), mark(x2)), MARK(s(sel(z0, z1))))
   A__SEL(s(s(cons(z0, z1))), cons(x1, x2)) -> c3(A__SEL(s(cons(mark(z0), z1)), mark(x2)), MARK(s(cons(z0, z1))))
   A__SEL(s(s(s(z0))), cons(x1, x2)) -> c3(A__SEL(s(s(mark(z0))), mark(x2)), MARK(s(s(z0))))
   A__SEL(s(s(0)), cons(x1, x2)) -> c3(A__SEL(s(0), mark(x2)), MARK(s(0)))
   A__SEL(s(s(x0)), cons(x1, x2)) -> c3(MARK(s(x0)))
   A__SEL(s(s(x0)), cons(x1, s(z0))) -> c3(MARK(s(x0)))
   A__SEL(s(s(x0)), cons(x1, 0)) -> c3(MARK(s(x0)))
   A__SEL(s(x0), cons(x1, from(x2))) -> c4(A__SEL(mark(x0), cons(mark(mark(x2)), from(s(mark(x2))))), MARK(from(x2)))
   A__SEL(s(x0), cons(x1, from(from(z0)))) -> c4(A__SEL(mark(x0), a__from(a__from(mark(z0)))), MARK(from(from(z0))))
   A__SEL(s(x0), cons(x1, from(sel(z0, z1)))) -> c4(A__SEL(mark(x0), a__from(a__sel(mark(z0), mark(z1)))), MARK(from(sel(z0, z1))))
   A__SEL(s(x0), cons(x1, from(cons(z0, z1)))) -> c4(A__SEL(mark(x0), a__from(cons(mark(z0), z1))), MARK(from(cons(z0, z1))))
   A__SEL(s(x0), cons(x1, from(s(z0)))) -> c4(A__SEL(mark(x0), a__from(s(mark(z0)))), MARK(from(s(z0))))
   A__SEL(s(x0), cons(x1, from(0))) -> c4(A__SEL(mark(x0), a__from(0)), MARK(from(0)))
   A__SEL(s(from(z0)), cons(x1, from(x2))) -> c4(A__SEL(a__from(mark(z0)), a__from(mark(x2))), MARK(from(x2)))
   A__SEL(s(sel(z0, z1)), cons(x1, from(x2))) -> c4(A__SEL(a__sel(mark(z0), mark(z1)), a__from(mark(x2))), MARK(from(x2)))
   A__SEL(s(s(z0)), cons(x1, from(x2))) -> c4(A__SEL(s(mark(z0)), a__from(mark(x2))), MARK(from(x2)))
   A__SEL(s(0), cons(x1, from(x2))) -> c4(A__SEL(0, a__from(mark(x2))), MARK(from(x2)))
   A__SEL(s(x0), cons(x1, from(x2))) -> c4(MARK(from(x2)))
   A__SEL(s(cons(z0, z1)), cons(x1, from(x2))) -> c4(MARK(from(x2)))
   A__SEL(s(x0), cons(x1, sel(x2, from(z0)))) -> c4(A__SEL(mark(x0), a__sel(mark(x2), a__from(mark(z0)))), MARK(sel(x2, from(z0))))
   A__SEL(s(x0), cons(x1, sel(x2, sel(z0, z1)))) -> c4(A__SEL(mark(x0), a__sel(mark(x2), a__sel(mark(z0), mark(z1)))), MARK(sel(x2, sel(z0, z1))))
   A__SEL(s(x0), cons(x1, sel(x2, cons(z0, z1)))) -> c4(A__SEL(mark(x0), a__sel(mark(x2), cons(mark(z0), z1))), MARK(sel(x2, cons(z0, z1))))
   A__SEL(s(x0), cons(x1, sel(x2, s(z0)))) -> c4(A__SEL(mark(x0), a__sel(mark(x2), s(mark(z0)))), MARK(sel(x2, s(z0))))
   A__SEL(s(x0), cons(x1, sel(x2, 0))) -> c4(A__SEL(mark(x0), a__sel(mark(x2), 0)), MARK(sel(x2, 0)))
   A__SEL(s(x0), cons(x1, sel(from(z0), x3))) -> c4(A__SEL(mark(x0), a__sel(a__from(mark(z0)), mark(x3))), MARK(sel(from(z0), x3)))
   A__SEL(s(x0), cons(x1, sel(sel(z0, z1), x3))) -> c4(A__SEL(mark(x0), a__sel(a__sel(mark(z0), mark(z1)), mark(x3))), MARK(sel(sel(z0, z1), x3)))
   A__SEL(s(x0), cons(x1, sel(cons(z0, z1), x3))) -> c4(A__SEL(mark(x0), a__sel(cons(mark(z0), z1), mark(x3))), MARK(sel(cons(z0, z1), x3)))
   A__SEL(s(x0), cons(x1, sel(s(z0), x3))) -> c4(A__SEL(mark(x0), a__sel(s(mark(z0)), mark(x3))), MARK(sel(s(z0), x3)))
   A__SEL(s(x0), cons(x1, sel(0, x3))) -> c4(A__SEL(mark(x0), a__sel(0, mark(x3))), MARK(sel(0, x3)))
   A__SEL(s(from(z0)), cons(x1, sel(x2, x3))) -> c4(A__SEL(a__from(mark(z0)), a__sel(mark(x2), mark(x3))), MARK(sel(x2, x3)))
   A__SEL(s(sel(z0, z1)), cons(x1, sel(x2, x3))) -> c4(A__SEL(a__sel(mark(z0), mark(z1)), a__sel(mark(x2), mark(x3))), MARK(sel(x2, x3)))
   A__SEL(s(s(z0)), cons(x1, sel(x2, x3))) -> c4(A__SEL(s(mark(z0)), a__sel(mark(x2), mark(x3))), MARK(sel(x2, x3)))
   A__SEL(s(0), cons(x1, sel(x2, x3))) -> c4(A__SEL(0, a__sel(mark(x2), mark(x3))), MARK(sel(x2, x3)))
   A__SEL(s(x0), cons(x1, sel(x2, x3))) -> c4(MARK(sel(x2, x3)))
   A__SEL(s(cons(z0, z1)), cons(x1, sel(x2, x3))) -> c4(MARK(sel(x2, x3)))
   A__SEL(s(x0), cons(x1, cons(from(z0), x3))) -> c4(A__SEL(mark(x0), cons(a__from(mark(z0)), x3)), MARK(cons(from(z0), x3)))
   A__SEL(s(x0), cons(x1, cons(sel(z0, z1), x3))) -> c4(A__SEL(mark(x0), cons(a__sel(mark(z0), mark(z1)), x3)), MARK(cons(sel(z0, z1), x3)))
   A__SEL(s(x0), cons(x1, cons(cons(z0, z1), x3))) -> c4(A__SEL(mark(x0), cons(cons(mark(z0), z1), x3)), MARK(cons(cons(z0, z1), x3)))
   A__SEL(s(x0), cons(x1, cons(s(z0), x3))) -> c4(A__SEL(mark(x0), cons(s(mark(z0)), x3)), MARK(cons(s(z0), x3)))
   A__SEL(s(x0), cons(x1, cons(0, x3))) -> c4(A__SEL(mark(x0), cons(0, x3)), MARK(cons(0, x3)))
   A__SEL(s(from(z0)), cons(x1, cons(x2, x3))) -> c4(A__SEL(a__from(mark(z0)), cons(mark(x2), x3)), MARK(cons(x2, x3)))
   A__SEL(s(sel(z0, z1)), cons(x1, cons(x2, x3))) -> c4(A__SEL(a__sel(mark(z0), mark(z1)), cons(mark(x2), x3)), MARK(cons(x2, x3)))
   A__SEL(s(s(z0)), cons(x1, cons(x2, x3))) -> c4(A__SEL(s(mark(z0)), cons(mark(x2), x3)), MARK(cons(x2, x3)))
   A__SEL(s(0), cons(x1, cons(x2, x3))) -> c4(A__SEL(0, cons(mark(x2), x3)), MARK(cons(x2, x3)))
   A__SEL(s(x0), cons(x1, cons(x2, x3))) -> c4(MARK(cons(x2, x3)))
   A__SEL(s(cons(z0, z1)), cons(x1, cons(x2, x3))) -> c4(MARK(cons(x2, x3)))
   A__SEL(s(from(from(z0))), cons(x1, x2)) -> c4(A__SEL(a__from(a__from(mark(z0))), mark(x2)), MARK(x2))
   A__SEL(s(from(sel(z0, z1))), cons(x1, x2)) -> c4(A__SEL(a__from(a__sel(mark(z0), mark(z1))), mark(x2)), MARK(x2))
   A__SEL(s(from(cons(z0, z1))), cons(x1, x2)) -> c4(A__SEL(a__from(cons(mark(z0), z1)), mark(x2)), MARK(x2))
   A__SEL(s(from(s(z0))), cons(x1, x2)) -> c4(A__SEL(a__from(s(mark(z0))), mark(x2)), MARK(x2))
   A__SEL(s(from(0)), cons(x1, x2)) -> c4(A__SEL(a__from(0), mark(x2)), MARK(x2))
   A__SEL(s(from(x0)), cons(x1, s(z0))) -> c4(MARK(s(z0)))
   A__SEL(s(from(x0)), cons(x1, x2)) -> c4(MARK(x2))
   A__SEL(s(sel(x0, from(z0))), cons(x2, x3)) -> c4(A__SEL(a__sel(mark(x0), a__from(mark(z0))), mark(x3)), MARK(x3))
   A__SEL(s(sel(x0, sel(z0, z1))), cons(x2, x3)) -> c4(A__SEL(a__sel(mark(x0), a__sel(mark(z0), mark(z1))), mark(x3)), MARK(x3))
   A__SEL(s(sel(x0, cons(z0, z1))), cons(x2, x3)) -> c4(A__SEL(a__sel(mark(x0), cons(mark(z0), z1)), mark(x3)), MARK(x3))
   A__SEL(s(sel(x0, s(z0))), cons(x2, x3)) -> c4(A__SEL(a__sel(mark(x0), s(mark(z0))), mark(x3)), MARK(x3))
   A__SEL(s(sel(x0, 0)), cons(x2, x3)) -> c4(A__SEL(a__sel(mark(x0), 0), mark(x3)), MARK(x3))
   A__SEL(s(sel(from(z0), x1)), cons(x2, x3)) -> c4(A__SEL(a__sel(a__from(mark(z0)), mark(x1)), mark(x3)), MARK(x3))
   A__SEL(s(sel(sel(z0, z1), x1)), cons(x2, x3)) -> c4(A__SEL(a__sel(a__sel(mark(z0), mark(z1)), mark(x1)), mark(x3)), MARK(x3))
   A__SEL(s(sel(cons(z0, z1), x1)), cons(x2, x3)) -> c4(A__SEL(a__sel(cons(mark(z0), z1), mark(x1)), mark(x3)), MARK(x3))
   A__SEL(s(sel(s(z0), x1)), cons(x2, x3)) -> c4(A__SEL(a__sel(s(mark(z0)), mark(x1)), mark(x3)), MARK(x3))
   A__SEL(s(sel(0, x1)), cons(x2, x3)) -> c4(A__SEL(a__sel(0, mark(x1)), mark(x3)), MARK(x3))
   A__SEL(s(sel(x0, x1)), cons(x2, s(z0))) -> c4(MARK(s(z0)))
   A__SEL(s(sel(x0, x1)), cons(x2, x3)) -> c4(MARK(x3))
   A__SEL(s(s(from(z0))), cons(x1, x2)) -> c4(A__SEL(s(a__from(mark(z0))), mark(x2)), MARK(x2))
   A__SEL(s(s(sel(z0, z1))), cons(x1, x2)) -> c4(A__SEL(s(a__sel(mark(z0), mark(z1))), mark(x2)), MARK(x2))
   A__SEL(s(s(cons(z0, z1))), cons(x1, x2)) -> c4(A__SEL(s(cons(mark(z0), z1)), mark(x2)), MARK(x2))
   A__SEL(s(s(s(z0))), cons(x1, x2)) -> c4(A__SEL(s(s(mark(z0))), mark(x2)), MARK(x2))
   A__SEL(s(s(0)), cons(x1, x2)) -> c4(A__SEL(s(0), mark(x2)), MARK(x2))
   A__SEL(s(s(x0)), cons(x1, s(z0))) -> c4(MARK(s(z0)))
   A__SEL(s(0), cons(x0, s(z0))) -> c4(MARK(s(z0)))
   MARK(sel(x0, from(x1))) -> c7(A__SEL(mark(x0), cons(mark(mark(x1)), from(s(mark(x1))))), MARK(x0))
   MARK(sel(x0, from(from(z0)))) -> c7(A__SEL(mark(x0), a__from(a__from(mark(z0)))), MARK(x0))
   MARK(sel(x0, from(sel(z0, z1)))) -> c7(A__SEL(mark(x0), a__from(a__sel(mark(z0), mark(z1)))), MARK(x0))
   MARK(sel(x0, from(cons(z0, z1)))) -> c7(A__SEL(mark(x0), a__from(cons(mark(z0), z1))), MARK(x0))
   MARK(sel(x0, from(s(z0)))) -> c7(A__SEL(mark(x0), a__from(s(mark(z0)))), MARK(x0))
   MARK(sel(x0, from(0))) -> c7(A__SEL(mark(x0), a__from(0)), MARK(x0))
   MARK(sel(from(z0), from(x1))) -> c7(A__SEL(a__from(mark(z0)), a__from(mark(x1))), MARK(from(z0)))
   MARK(sel(sel(z0, z1), from(x1))) -> c7(A__SEL(a__sel(mark(z0), mark(z1)), a__from(mark(x1))), MARK(sel(z0, z1)))
   MARK(sel(s(z0), from(x1))) -> c7(A__SEL(s(mark(z0)), a__from(mark(x1))), MARK(s(z0)))
   MARK(sel(x0, from(x1))) -> c7(MARK(x0))
   MARK(sel(cons(z0, z1), from(x1))) -> c7(MARK(cons(z0, z1)))
   MARK(sel(0, from(x1))) -> c7(A__SEL(0, a__from(mark(x1))))
   MARK(sel(x0, sel(x1, from(z0)))) -> c7(A__SEL(mark(x0), a__sel(mark(x1), a__from(mark(z0)))), MARK(x0))
   MARK(sel(x0, sel(x1, sel(z0, z1)))) -> c7(A__SEL(mark(x0), a__sel(mark(x1), a__sel(mark(z0), mark(z1)))), MARK(x0))
   MARK(sel(x0, sel(x1, cons(z0, z1)))) -> c7(A__SEL(mark(x0), a__sel(mark(x1), cons(mark(z0), z1))), MARK(x0))
   MARK(sel(x0, sel(x1, s(z0)))) -> c7(A__SEL(mark(x0), a__sel(mark(x1), s(mark(z0)))), MARK(x0))
   MARK(sel(x0, sel(x1, 0))) -> c7(A__SEL(mark(x0), a__sel(mark(x1), 0)), MARK(x0))
   MARK(sel(x0, sel(from(z0), x2))) -> c7(A__SEL(mark(x0), a__sel(a__from(mark(z0)), mark(x2))), MARK(x0))
   MARK(sel(x0, sel(sel(z0, z1), x2))) -> c7(A__SEL(mark(x0), a__sel(a__sel(mark(z0), mark(z1)), mark(x2))), MARK(x0))
   MARK(sel(x0, sel(cons(z0, z1), x2))) -> c7(A__SEL(mark(x0), a__sel(cons(mark(z0), z1), mark(x2))), MARK(x0))
   MARK(sel(x0, sel(s(z0), x2))) -> c7(A__SEL(mark(x0), a__sel(s(mark(z0)), mark(x2))), MARK(x0))
   MARK(sel(x0, sel(0, x2))) -> c7(A__SEL(mark(x0), a__sel(0, mark(x2))), MARK(x0))
   MARK(sel(from(z0), sel(x1, x2))) -> c7(A__SEL(a__from(mark(z0)), a__sel(mark(x1), mark(x2))), MARK(from(z0)))
   MARK(sel(sel(z0, z1), sel(x1, x2))) -> c7(A__SEL(a__sel(mark(z0), mark(z1)), a__sel(mark(x1), mark(x2))), MARK(sel(z0, z1)))
   MARK(sel(s(z0), sel(x1, x2))) -> c7(A__SEL(s(mark(z0)), a__sel(mark(x1), mark(x2))), MARK(s(z0)))
   MARK(sel(x0, sel(x1, x2))) -> c7(MARK(x0))
   MARK(sel(cons(z0, z1), sel(x1, x2))) -> c7(MARK(cons(z0, z1)))
   MARK(sel(0, sel(x1, x2))) -> c7(A__SEL(0, a__sel(mark(x1), mark(x2))))
   MARK(sel(x0, cons(from(z0), x2))) -> c7(A__SEL(mark(x0), cons(a__from(mark(z0)), x2)), MARK(x0))
   MARK(sel(x0, cons(sel(z0, z1), x2))) -> c7(A__SEL(mark(x0), cons(a__sel(mark(z0), mark(z1)), x2)), MARK(x0))
   MARK(sel(x0, cons(cons(z0, z1), x2))) -> c7(A__SEL(mark(x0), cons(cons(mark(z0), z1), x2)), MARK(x0))
   MARK(sel(x0, cons(s(z0), x2))) -> c7(A__SEL(mark(x0), cons(s(mark(z0)), x2)), MARK(x0))
   MARK(sel(x0, cons(0, x2))) -> c7(A__SEL(mark(x0), cons(0, x2)), MARK(x0))
   MARK(sel(from(z0), cons(x1, x2))) -> c7(A__SEL(a__from(mark(z0)), cons(mark(x1), x2)), MARK(from(z0)))
   MARK(sel(sel(z0, z1), cons(x1, x2))) -> c7(A__SEL(a__sel(mark(z0), mark(z1)), cons(mark(x1), x2)), MARK(sel(z0, z1)))
   MARK(sel(s(z0), cons(x1, x2))) -> c7(A__SEL(s(mark(z0)), cons(mark(x1), x2)), MARK(s(z0)))
   MARK(sel(cons(z0, z1), cons(x1, x2))) -> c7(MARK(cons(z0, z1)))
   MARK(sel(0, cons(x1, x2))) -> c7(A__SEL(0, cons(mark(x1), x2)))
   MARK(sel(from(from(z0)), x1)) -> c7(A__SEL(a__from(a__from(mark(z0))), mark(x1)), MARK(from(from(z0))))
   MARK(sel(from(sel(z0, z1)), x1)) -> c7(A__SEL(a__from(a__sel(mark(z0), mark(z1))), mark(x1)), MARK(from(sel(z0, z1))))
   MARK(sel(from(cons(z0, z1)), x1)) -> c7(A__SEL(a__from(cons(mark(z0), z1)), mark(x1)), MARK(from(cons(z0, z1))))
   MARK(sel(from(s(z0)), x1)) -> c7(A__SEL(a__from(s(mark(z0))), mark(x1)), MARK(from(s(z0))))
   MARK(sel(from(0), x1)) -> c7(A__SEL(a__from(0), mark(x1)), MARK(from(0)))
   MARK(sel(from(x0), x1)) -> c7(MARK(from(x0)))
   MARK(sel(from(x0), s(z0))) -> c7(MARK(from(x0)))
   MARK(sel(from(x0), 0)) -> c7(MARK(from(x0)))
   MARK(sel(sel(x0, from(z0)), x2)) -> c7(A__SEL(a__sel(mark(x0), a__from(mark(z0))), mark(x2)), MARK(sel(x0, from(z0))))
   MARK(sel(sel(x0, sel(z0, z1)), x2)) -> c7(A__SEL(a__sel(mark(x0), a__sel(mark(z0), mark(z1))), mark(x2)), MARK(sel(x0, sel(z0, z1))))
   MARK(sel(sel(x0, cons(z0, z1)), x2)) -> c7(A__SEL(a__sel(mark(x0), cons(mark(z0), z1)), mark(x2)), MARK(sel(x0, cons(z0, z1))))
   MARK(sel(sel(x0, s(z0)), x2)) -> c7(A__SEL(a__sel(mark(x0), s(mark(z0))), mark(x2)), MARK(sel(x0, s(z0))))
   MARK(sel(sel(x0, 0), x2)) -> c7(A__SEL(a__sel(mark(x0), 0), mark(x2)), MARK(sel(x0, 0)))
   MARK(sel(sel(from(z0), x1), x2)) -> c7(A__SEL(a__sel(a__from(mark(z0)), mark(x1)), mark(x2)), MARK(sel(from(z0), x1)))
   MARK(sel(sel(sel(z0, z1), x1), x2)) -> c7(A__SEL(a__sel(a__sel(mark(z0), mark(z1)), mark(x1)), mark(x2)), MARK(sel(sel(z0, z1), x1)))
   MARK(sel(sel(cons(z0, z1), x1), x2)) -> c7(A__SEL(a__sel(cons(mark(z0), z1), mark(x1)), mark(x2)), MARK(sel(cons(z0, z1), x1)))
   MARK(sel(sel(s(z0), x1), x2)) -> c7(A__SEL(a__sel(s(mark(z0)), mark(x1)), mark(x2)), MARK(sel(s(z0), x1)))
   MARK(sel(sel(0, x1), x2)) -> c7(A__SEL(a__sel(0, mark(x1)), mark(x2)), MARK(sel(0, x1)))
   MARK(sel(sel(x0, x1), s(z0))) -> c7(MARK(sel(x0, x1)))
   MARK(sel(sel(x0, x1), 0)) -> c7(MARK(sel(x0, x1)))
   MARK(sel(sel(x0, x1), x2)) -> c7(MARK(sel(x0, x1)))
   MARK(sel(s(from(z0)), x1)) -> c7(A__SEL(s(a__from(mark(z0))), mark(x1)), MARK(s(from(z0))))
   MARK(sel(s(sel(z0, z1)), x1)) -> c7(A__SEL(s(a__sel(mark(z0), mark(z1))), mark(x1)), MARK(s(sel(z0, z1))))
   MARK(sel(s(cons(z0, z1)), x1)) -> c7(A__SEL(s(cons(mark(z0), z1)), mark(x1)), MARK(s(cons(z0, z1))))
   MARK(sel(s(s(z0)), x1)) -> c7(A__SEL(s(s(mark(z0))), mark(x1)), MARK(s(s(z0))))
   MARK(sel(s(0), x1)) -> c7(A__SEL(s(0), mark(x1)), MARK(s(0)))
   MARK(sel(s(x0), x1)) -> c7(MARK(s(x0)))
   MARK(sel(s(x0), s(z0))) -> c7(MARK(s(x0)))
   MARK(sel(s(x0), 0)) -> c7(MARK(s(x0)))
   MARK(sel(x0, from(x1))) -> c8(A__SEL(mark(x0), cons(mark(mark(x1)), from(s(mark(x1))))), MARK(from(x1)))
   MARK(sel(x0, from(from(z0)))) -> c8(A__SEL(mark(x0), a__from(a__from(mark(z0)))), MARK(from(from(z0))))
   MARK(sel(x0, from(sel(z0, z1)))) -> c8(A__SEL(mark(x0), a__from(a__sel(mark(z0), mark(z1)))), MARK(from(sel(z0, z1))))
   MARK(sel(x0, from(cons(z0, z1)))) -> c8(A__SEL(mark(x0), a__from(cons(mark(z0), z1))), MARK(from(cons(z0, z1))))
   MARK(sel(x0, from(s(z0)))) -> c8(A__SEL(mark(x0), a__from(s(mark(z0)))), MARK(from(s(z0))))
   MARK(sel(x0, from(0))) -> c8(A__SEL(mark(x0), a__from(0)), MARK(from(0)))
   MARK(sel(from(z0), from(x1))) -> c8(A__SEL(a__from(mark(z0)), a__from(mark(x1))), MARK(from(x1)))
   MARK(sel(sel(z0, z1), from(x1))) -> c8(A__SEL(a__sel(mark(z0), mark(z1)), a__from(mark(x1))), MARK(from(x1)))
   MARK(sel(s(z0), from(x1))) -> c8(A__SEL(s(mark(z0)), a__from(mark(x1))), MARK(from(x1)))
   MARK(sel(0, from(x1))) -> c8(A__SEL(0, a__from(mark(x1))), MARK(from(x1)))
   MARK(sel(x0, from(x1))) -> c8(MARK(from(x1)))
   MARK(sel(cons(z0, z1), from(x1))) -> c8(MARK(from(x1)))
   MARK(sel(x0, sel(x1, from(z0)))) -> c8(A__SEL(mark(x0), a__sel(mark(x1), a__from(mark(z0)))), MARK(sel(x1, from(z0))))
   MARK(sel(x0, sel(x1, sel(z0, z1)))) -> c8(A__SEL(mark(x0), a__sel(mark(x1), a__sel(mark(z0), mark(z1)))), MARK(sel(x1, sel(z0, z1))))
   MARK(sel(x0, sel(x1, cons(z0, z1)))) -> c8(A__SEL(mark(x0), a__sel(mark(x1), cons(mark(z0), z1))), MARK(sel(x1, cons(z0, z1))))
   MARK(sel(x0, sel(x1, s(z0)))) -> c8(A__SEL(mark(x0), a__sel(mark(x1), s(mark(z0)))), MARK(sel(x1, s(z0))))
   MARK(sel(x0, sel(x1, 0))) -> c8(A__SEL(mark(x0), a__sel(mark(x1), 0)), MARK(sel(x1, 0)))
   MARK(sel(x0, sel(from(z0), x2))) -> c8(A__SEL(mark(x0), a__sel(a__from(mark(z0)), mark(x2))), MARK(sel(from(z0), x2)))
   MARK(sel(x0, sel(sel(z0, z1), x2))) -> c8(A__SEL(mark(x0), a__sel(a__sel(mark(z0), mark(z1)), mark(x2))), MARK(sel(sel(z0, z1), x2)))
   MARK(sel(x0, sel(cons(z0, z1), x2))) -> c8(A__SEL(mark(x0), a__sel(cons(mark(z0), z1), mark(x2))), MARK(sel(cons(z0, z1), x2)))
   MARK(sel(x0, sel(s(z0), x2))) -> c8(A__SEL(mark(x0), a__sel(s(mark(z0)), mark(x2))), MARK(sel(s(z0), x2)))
   MARK(sel(x0, sel(0, x2))) -> c8(A__SEL(mark(x0), a__sel(0, mark(x2))), MARK(sel(0, x2)))
   MARK(sel(from(z0), sel(x1, x2))) -> c8(A__SEL(a__from(mark(z0)), a__sel(mark(x1), mark(x2))), MARK(sel(x1, x2)))
   MARK(sel(sel(z0, z1), sel(x1, x2))) -> c8(A__SEL(a__sel(mark(z0), mark(z1)), a__sel(mark(x1), mark(x2))), MARK(sel(x1, x2)))
   MARK(sel(s(z0), sel(x1, x2))) -> c8(A__SEL(s(mark(z0)), a__sel(mark(x1), mark(x2))), MARK(sel(x1, x2)))
   MARK(sel(0, sel(x1, x2))) -> c8(A__SEL(0, a__sel(mark(x1), mark(x2))), MARK(sel(x1, x2)))
   MARK(sel(x0, sel(x1, x2))) -> c8(MARK(sel(x1, x2)))
   MARK(sel(cons(z0, z1), sel(x1, x2))) -> c8(MARK(sel(x1, x2)))
   MARK(sel(x0, cons(from(z0), x2))) -> c8(A__SEL(mark(x0), cons(a__from(mark(z0)), x2)), MARK(cons(from(z0), x2)))
   MARK(sel(x0, cons(sel(z0, z1), x2))) -> c8(A__SEL(mark(x0), cons(a__sel(mark(z0), mark(z1)), x2)), MARK(cons(sel(z0, z1), x2)))
   MARK(sel(x0, cons(cons(z0, z1), x2))) -> c8(A__SEL(mark(x0), cons(cons(mark(z0), z1), x2)), MARK(cons(cons(z0, z1), x2)))
   MARK(sel(x0, cons(s(z0), x2))) -> c8(A__SEL(mark(x0), cons(s(mark(z0)), x2)), MARK(cons(s(z0), x2)))
   MARK(sel(x0, cons(0, x2))) -> c8(A__SEL(mark(x0), cons(0, x2)), MARK(cons(0, x2)))
   MARK(sel(from(z0), cons(x1, x2))) -> c8(A__SEL(a__from(mark(z0)), cons(mark(x1), x2)), MARK(cons(x1, x2)))
   MARK(sel(sel(z0, z1), cons(x1, x2))) -> c8(A__SEL(a__sel(mark(z0), mark(z1)), cons(mark(x1), x2)), MARK(cons(x1, x2)))
   MARK(sel(s(z0), cons(x1, x2))) -> c8(A__SEL(s(mark(z0)), cons(mark(x1), x2)), MARK(cons(x1, x2)))
   MARK(sel(0, cons(x1, x2))) -> c8(A__SEL(0, cons(mark(x1), x2)), MARK(cons(x1, x2)))
   MARK(sel(x0, cons(x1, x2))) -> c8(MARK(cons(x1, x2)))
   MARK(sel(cons(z0, z1), cons(x1, x2))) -> c8(MARK(cons(x1, x2)))
   MARK(sel(from(from(z0)), x1)) -> c8(A__SEL(a__from(a__from(mark(z0))), mark(x1)), MARK(x1))
   MARK(sel(from(sel(z0, z1)), x1)) -> c8(A__SEL(a__from(a__sel(mark(z0), mark(z1))), mark(x1)), MARK(x1))
   MARK(sel(from(cons(z0, z1)), x1)) -> c8(A__SEL(a__from(cons(mark(z0), z1)), mark(x1)), MARK(x1))
   MARK(sel(from(s(z0)), x1)) -> c8(A__SEL(a__from(s(mark(z0))), mark(x1)), MARK(x1))
   MARK(sel(from(0), x1)) -> c8(A__SEL(a__from(0), mark(x1)), MARK(x1))
   MARK(sel(from(x0), s(z0))) -> c8(MARK(s(z0)))
   MARK(sel(from(x0), x1)) -> c8(MARK(x1))
   MARK(sel(sel(x0, x1), s(z0))) -> c8(A__SEL(a__sel(mark(x0), mark(x1)), s(mark(z0))), MARK(s(z0)))
   MARK(sel(sel(x0, x1), x2)) -> c8(A__SEL(sel(mark(x0), mark(x1)), mark(x2)), MARK(x2))
   MARK(sel(sel(x0, from(z0)), x2)) -> c8(A__SEL(a__sel(mark(x0), a__from(mark(z0))), mark(x2)), MARK(x2))
   MARK(sel(sel(x0, sel(z0, z1)), x2)) -> c8(A__SEL(a__sel(mark(x0), a__sel(mark(z0), mark(z1))), mark(x2)), MARK(x2))
   MARK(sel(sel(x0, cons(z0, z1)), x2)) -> c8(A__SEL(a__sel(mark(x0), cons(mark(z0), z1)), mark(x2)), MARK(x2))
   MARK(sel(sel(x0, s(z0)), x2)) -> c8(A__SEL(a__sel(mark(x0), s(mark(z0))), mark(x2)), MARK(x2))
   MARK(sel(sel(x0, 0), x2)) -> c8(A__SEL(a__sel(mark(x0), 0), mark(x2)), MARK(x2))
   MARK(sel(sel(from(z0), x1), x2)) -> c8(A__SEL(a__sel(a__from(mark(z0)), mark(x1)), mark(x2)), MARK(x2))
   MARK(sel(sel(sel(z0, z1), x1), x2)) -> c8(A__SEL(a__sel(a__sel(mark(z0), mark(z1)), mark(x1)), mark(x2)), MARK(x2))
   MARK(sel(sel(cons(z0, z1), x1), x2)) -> c8(A__SEL(a__sel(cons(mark(z0), z1), mark(x1)), mark(x2)), MARK(x2))
   MARK(sel(sel(s(z0), x1), x2)) -> c8(A__SEL(a__sel(s(mark(z0)), mark(x1)), mark(x2)), MARK(x2))
   MARK(sel(sel(0, x1), x2)) -> c8(A__SEL(a__sel(0, mark(x1)), mark(x2)), MARK(x2))
S tuples:
   A__FROM(z0) -> c(MARK(z0))
   A__SEL(0, cons(z0, z1)) -> c2(MARK(z0))
   MARK(from(z0)) -> c6(A__FROM(mark(z0)), MARK(z0))
   MARK(cons(z0, z1)) -> c9(MARK(z0))
   MARK(s(z0)) -> c10(MARK(z0))
   A__SEL(s(x0), cons(x1, s(z0))) -> c3(MARK(x0))
   A__SEL(s(x0), cons(x1, 0)) -> c3(MARK(x0))
   A__SEL(s(cons(z0, z1)), cons(x1, x2)) -> c3(MARK(cons(z0, z1)))
   A__SEL(s(x0), cons(x1, s(z0))) -> c4(MARK(s(z0)))
   A__SEL(s(cons(z0, z1)), cons(x1, x2)) -> c4(MARK(x2))
   MARK(sel(x0, s(z0))) -> c7(MARK(x0))
   MARK(sel(x0, 0)) -> c7(MARK(x0))
   MARK(sel(cons(z0, z1), x1)) -> c7(MARK(cons(z0, z1)))
   MARK(sel(s(z0), x1)) -> c8(A__SEL(s(mark(z0)), mark(x1)), MARK(x1))
   MARK(sel(0, x1)) -> c8(A__SEL(0, mark(x1)), MARK(x1))
   MARK(sel(x0, s(z0))) -> c8(MARK(s(z0)))
   MARK(sel(cons(z0, z1), x1)) -> c8(MARK(x1))
   A__SEL(s(x0), cons(x1, from(x2))) -> c3(A__SEL(mark(x0), cons(mark(mark(x2)), from(s(mark(x2))))), MARK(x0))
   A__SEL(s(x0), cons(x1, from(from(z0)))) -> c3(A__SEL(mark(x0), a__from(a__from(mark(z0)))), MARK(x0))
   A__SEL(s(x0), cons(x1, from(sel(z0, z1)))) -> c3(A__SEL(mark(x0), a__from(a__sel(mark(z0), mark(z1)))), MARK(x0))
   A__SEL(s(x0), cons(x1, from(cons(z0, z1)))) -> c3(A__SEL(mark(x0), a__from(cons(mark(z0), z1))), MARK(x0))
   A__SEL(s(x0), cons(x1, from(s(z0)))) -> c3(A__SEL(mark(x0), a__from(s(mark(z0)))), MARK(x0))
   A__SEL(s(x0), cons(x1, from(0))) -> c3(A__SEL(mark(x0), a__from(0)), MARK(x0))
   A__SEL(s(from(z0)), cons(x1, from(x2))) -> c3(A__SEL(a__from(mark(z0)), a__from(mark(x2))), MARK(from(z0)))
   A__SEL(s(sel(z0, z1)), cons(x1, from(x2))) -> c3(A__SEL(a__sel(mark(z0), mark(z1)), a__from(mark(x2))), MARK(sel(z0, z1)))
   A__SEL(s(s(z0)), cons(x1, from(x2))) -> c3(A__SEL(s(mark(z0)), a__from(mark(x2))), MARK(s(z0)))
   A__SEL(s(x0), cons(x1, from(x2))) -> c3(MARK(x0))
   A__SEL(s(cons(z0, z1)), cons(x1, from(x2))) -> c3(MARK(cons(z0, z1)))
   A__SEL(s(0), cons(x1, from(x2))) -> c3(A__SEL(0, a__from(mark(x2))))
   A__SEL(s(x0), cons(x1, sel(x2, from(z0)))) -> c3(A__SEL(mark(x0), a__sel(mark(x2), a__from(mark(z0)))), MARK(x0))
   A__SEL(s(x0), cons(x1, sel(x2, sel(z0, z1)))) -> c3(A__SEL(mark(x0), a__sel(mark(x2), a__sel(mark(z0), mark(z1)))), MARK(x0))
   A__SEL(s(x0), cons(x1, sel(x2, cons(z0, z1)))) -> c3(A__SEL(mark(x0), a__sel(mark(x2), cons(mark(z0), z1))), MARK(x0))
   A__SEL(s(x0), cons(x1, sel(x2, s(z0)))) -> c3(A__SEL(mark(x0), a__sel(mark(x2), s(mark(z0)))), MARK(x0))
   A__SEL(s(x0), cons(x1, sel(x2, 0))) -> c3(A__SEL(mark(x0), a__sel(mark(x2), 0)), MARK(x0))
   A__SEL(s(x0), cons(x1, sel(from(z0), x3))) -> c3(A__SEL(mark(x0), a__sel(a__from(mark(z0)), mark(x3))), MARK(x0))
   A__SEL(s(x0), cons(x1, sel(sel(z0, z1), x3))) -> c3(A__SEL(mark(x0), a__sel(a__sel(mark(z0), mark(z1)), mark(x3))), MARK(x0))
   A__SEL(s(x0), cons(x1, sel(cons(z0, z1), x3))) -> c3(A__SEL(mark(x0), a__sel(cons(mark(z0), z1), mark(x3))), MARK(x0))
   A__SEL(s(x0), cons(x1, sel(s(z0), x3))) -> c3(A__SEL(mark(x0), a__sel(s(mark(z0)), mark(x3))), MARK(x0))
   A__SEL(s(x0), cons(x1, sel(0, x3))) -> c3(A__SEL(mark(x0), a__sel(0, mark(x3))), MARK(x0))
   A__SEL(s(from(z0)), cons(x1, sel(x2, x3))) -> c3(A__SEL(a__from(mark(z0)), a__sel(mark(x2), mark(x3))), MARK(from(z0)))
   A__SEL(s(sel(z0, z1)), cons(x1, sel(x2, x3))) -> c3(A__SEL(a__sel(mark(z0), mark(z1)), a__sel(mark(x2), mark(x3))), MARK(sel(z0, z1)))
   A__SEL(s(s(z0)), cons(x1, sel(x2, x3))) -> c3(A__SEL(s(mark(z0)), a__sel(mark(x2), mark(x3))), MARK(s(z0)))
   A__SEL(s(x0), cons(x1, sel(x2, x3))) -> c3(MARK(x0))
   A__SEL(s(cons(z0, z1)), cons(x1, sel(x2, x3))) -> c3(MARK(cons(z0, z1)))
   A__SEL(s(0), cons(x1, sel(x2, x3))) -> c3(A__SEL(0, a__sel(mark(x2), mark(x3))))
   A__SEL(s(x0), cons(x1, cons(from(z0), x3))) -> c3(A__SEL(mark(x0), cons(a__from(mark(z0)), x3)), MARK(x0))
   A__SEL(s(x0), cons(x1, cons(sel(z0, z1), x3))) -> c3(A__SEL(mark(x0), cons(a__sel(mark(z0), mark(z1)), x3)), MARK(x0))
   A__SEL(s(x0), cons(x1, cons(cons(z0, z1), x3))) -> c3(A__SEL(mark(x0), cons(cons(mark(z0), z1), x3)), MARK(x0))
   A__SEL(s(x0), cons(x1, cons(s(z0), x3))) -> c3(A__SEL(mark(x0), cons(s(mark(z0)), x3)), MARK(x0))
   A__SEL(s(x0), cons(x1, cons(0, x3))) -> c3(A__SEL(mark(x0), cons(0, x3)), MARK(x0))
   A__SEL(s(from(z0)), cons(x1, cons(x2, x3))) -> c3(A__SEL(a__from(mark(z0)), cons(mark(x2), x3)), MARK(from(z0)))
   A__SEL(s(sel(z0, z1)), cons(x1, cons(x2, x3))) -> c3(A__SEL(a__sel(mark(z0), mark(z1)), cons(mark(x2), x3)), MARK(sel(z0, z1)))
   A__SEL(s(s(z0)), cons(x1, cons(x2, x3))) -> c3(A__SEL(s(mark(z0)), cons(mark(x2), x3)), MARK(s(z0)))
   A__SEL(s(cons(z0, z1)), cons(x1, cons(x2, x3))) -> c3(MARK(cons(z0, z1)))
   A__SEL(s(0), cons(x1, cons(x2, x3))) -> c3(A__SEL(0, cons(mark(x2), x3)))
   A__SEL(s(from(from(z0))), cons(x1, x2)) -> c3(A__SEL(a__from(a__from(mark(z0))), mark(x2)), MARK(from(from(z0))))
   A__SEL(s(from(sel(z0, z1))), cons(x1, x2)) -> c3(A__SEL(a__from(a__sel(mark(z0), mark(z1))), mark(x2)), MARK(from(sel(z0, z1))))
   A__SEL(s(from(cons(z0, z1))), cons(x1, x2)) -> c3(A__SEL(a__from(cons(mark(z0), z1)), mark(x2)), MARK(from(cons(z0, z1))))
   A__SEL(s(from(s(z0))), cons(x1, x2)) -> c3(A__SEL(a__from(s(mark(z0))), mark(x2)), MARK(from(s(z0))))
   A__SEL(s(from(0)), cons(x1, x2)) -> c3(A__SEL(a__from(0), mark(x2)), MARK(from(0)))
   A__SEL(s(from(x0)), cons(x1, x2)) -> c3(MARK(from(x0)))
   A__SEL(s(from(x0)), cons(x1, s(z0))) -> c3(MARK(from(x0)))
   A__SEL(s(from(x0)), cons(x1, 0)) -> c3(MARK(from(x0)))
   A__SEL(s(sel(x0, from(z0))), cons(x2, x3)) -> c3(A__SEL(a__sel(mark(x0), a__from(mark(z0))), mark(x3)), MARK(sel(x0, from(z0))))
   A__SEL(s(sel(x0, sel(z0, z1))), cons(x2, x3)) -> c3(A__SEL(a__sel(mark(x0), a__sel(mark(z0), mark(z1))), mark(x3)), MARK(sel(x0, sel(z0, z1))))
   A__SEL(s(sel(x0, cons(z0, z1))), cons(x2, x3)) -> c3(A__SEL(a__sel(mark(x0), cons(mark(z0), z1)), mark(x3)), MARK(sel(x0, cons(z0, z1))))
   A__SEL(s(sel(x0, s(z0))), cons(x2, x3)) -> c3(A__SEL(a__sel(mark(x0), s(mark(z0))), mark(x3)), MARK(sel(x0, s(z0))))
   A__SEL(s(sel(x0, 0)), cons(x2, x3)) -> c3(A__SEL(a__sel(mark(x0), 0), mark(x3)), MARK(sel(x0, 0)))
   A__SEL(s(sel(from(z0), x1)), cons(x2, x3)) -> c3(A__SEL(a__sel(a__from(mark(z0)), mark(x1)), mark(x3)), MARK(sel(from(z0), x1)))
   A__SEL(s(sel(sel(z0, z1), x1)), cons(x2, x3)) -> c3(A__SEL(a__sel(a__sel(mark(z0), mark(z1)), mark(x1)), mark(x3)), MARK(sel(sel(z0, z1), x1)))
   A__SEL(s(sel(cons(z0, z1), x1)), cons(x2, x3)) -> c3(A__SEL(a__sel(cons(mark(z0), z1), mark(x1)), mark(x3)), MARK(sel(cons(z0, z1), x1)))
   A__SEL(s(sel(s(z0), x1)), cons(x2, x3)) -> c3(A__SEL(a__sel(s(mark(z0)), mark(x1)), mark(x3)), MARK(sel(s(z0), x1)))
   A__SEL(s(sel(0, x1)), cons(x2, x3)) -> c3(A__SEL(a__sel(0, mark(x1)), mark(x3)), MARK(sel(0, x1)))
   A__SEL(s(sel(x0, x1)), cons(x2, s(z0))) -> c3(MARK(sel(x0, x1)))
   A__SEL(s(sel(x0, x1)), cons(x2, 0)) -> c3(MARK(sel(x0, x1)))
   A__SEL(s(sel(x0, x1)), cons(x2, x3)) -> c3(MARK(sel(x0, x1)))
   A__SEL(s(s(from(z0))), cons(x1, x2)) -> c3(A__SEL(s(a__from(mark(z0))), mark(x2)), MARK(s(from(z0))))
   A__SEL(s(s(sel(z0, z1))), cons(x1, x2)) -> c3(A__SEL(s(a__sel(mark(z0), mark(z1))), mark(x2)), MARK(s(sel(z0, z1))))
   A__SEL(s(s(cons(z0, z1))), cons(x1, x2)) -> c3(A__SEL(s(cons(mark(z0), z1)), mark(x2)), MARK(s(cons(z0, z1))))
   A__SEL(s(s(s(z0))), cons(x1, x2)) -> c3(A__SEL(s(s(mark(z0))), mark(x2)), MARK(s(s(z0))))
   A__SEL(s(s(0)), cons(x1, x2)) -> c3(A__SEL(s(0), mark(x2)), MARK(s(0)))
   A__SEL(s(s(x0)), cons(x1, x2)) -> c3(MARK(s(x0)))
   A__SEL(s(s(x0)), cons(x1, s(z0))) -> c3(MARK(s(x0)))
   A__SEL(s(s(x0)), cons(x1, 0)) -> c3(MARK(s(x0)))
   A__SEL(s(x0), cons(x1, from(x2))) -> c4(A__SEL(mark(x0), cons(mark(mark(x2)), from(s(mark(x2))))), MARK(from(x2)))
   A__SEL(s(x0), cons(x1, from(from(z0)))) -> c4(A__SEL(mark(x0), a__from(a__from(mark(z0)))), MARK(from(from(z0))))
   A__SEL(s(x0), cons(x1, from(sel(z0, z1)))) -> c4(A__SEL(mark(x0), a__from(a__sel(mark(z0), mark(z1)))), MARK(from(sel(z0, z1))))
   A__SEL(s(x0), cons(x1, from(cons(z0, z1)))) -> c4(A__SEL(mark(x0), a__from(cons(mark(z0), z1))), MARK(from(cons(z0, z1))))
   A__SEL(s(x0), cons(x1, from(s(z0)))) -> c4(A__SEL(mark(x0), a__from(s(mark(z0)))), MARK(from(s(z0))))
   A__SEL(s(x0), cons(x1, from(0))) -> c4(A__SEL(mark(x0), a__from(0)), MARK(from(0)))
   A__SEL(s(from(z0)), cons(x1, from(x2))) -> c4(A__SEL(a__from(mark(z0)), a__from(mark(x2))), MARK(from(x2)))
   A__SEL(s(sel(z0, z1)), cons(x1, from(x2))) -> c4(A__SEL(a__sel(mark(z0), mark(z1)), a__from(mark(x2))), MARK(from(x2)))
   A__SEL(s(s(z0)), cons(x1, from(x2))) -> c4(A__SEL(s(mark(z0)), a__from(mark(x2))), MARK(from(x2)))
   A__SEL(s(0), cons(x1, from(x2))) -> c4(A__SEL(0, a__from(mark(x2))), MARK(from(x2)))
   A__SEL(s(x0), cons(x1, from(x2))) -> c4(MARK(from(x2)))
   A__SEL(s(cons(z0, z1)), cons(x1, from(x2))) -> c4(MARK(from(x2)))
   A__SEL(s(x0), cons(x1, sel(x2, from(z0)))) -> c4(A__SEL(mark(x0), a__sel(mark(x2), a__from(mark(z0)))), MARK(sel(x2, from(z0))))
   A__SEL(s(x0), cons(x1, sel(x2, sel(z0, z1)))) -> c4(A__SEL(mark(x0), a__sel(mark(x2), a__sel(mark(z0), mark(z1)))), MARK(sel(x2, sel(z0, z1))))
   A__SEL(s(x0), cons(x1, sel(x2, cons(z0, z1)))) -> c4(A__SEL(mark(x0), a__sel(mark(x2), cons(mark(z0), z1))), MARK(sel(x2, cons(z0, z1))))
   A__SEL(s(x0), cons(x1, sel(x2, s(z0)))) -> c4(A__SEL(mark(x0), a__sel(mark(x2), s(mark(z0)))), MARK(sel(x2, s(z0))))
   A__SEL(s(x0), cons(x1, sel(x2, 0))) -> c4(A__SEL(mark(x0), a__sel(mark(x2), 0)), MARK(sel(x2, 0)))
   A__SEL(s(x0), cons(x1, sel(from(z0), x3))) -> c4(A__SEL(mark(x0), a__sel(a__from(mark(z0)), mark(x3))), MARK(sel(from(z0), x3)))
   A__SEL(s(x0), cons(x1, sel(sel(z0, z1), x3))) -> c4(A__SEL(mark(x0), a__sel(a__sel(mark(z0), mark(z1)), mark(x3))), MARK(sel(sel(z0, z1), x3)))
   A__SEL(s(x0), cons(x1, sel(cons(z0, z1), x3))) -> c4(A__SEL(mark(x0), a__sel(cons(mark(z0), z1), mark(x3))), MARK(sel(cons(z0, z1), x3)))
   A__SEL(s(x0), cons(x1, sel(s(z0), x3))) -> c4(A__SEL(mark(x0), a__sel(s(mark(z0)), mark(x3))), MARK(sel(s(z0), x3)))
   A__SEL(s(x0), cons(x1, sel(0, x3))) -> c4(A__SEL(mark(x0), a__sel(0, mark(x3))), MARK(sel(0, x3)))
   A__SEL(s(from(z0)), cons(x1, sel(x2, x3))) -> c4(A__SEL(a__from(mark(z0)), a__sel(mark(x2), mark(x3))), MARK(sel(x2, x3)))
   A__SEL(s(sel(z0, z1)), cons(x1, sel(x2, x3))) -> c4(A__SEL(a__sel(mark(z0), mark(z1)), a__sel(mark(x2), mark(x3))), MARK(sel(x2, x3)))
   A__SEL(s(s(z0)), cons(x1, sel(x2, x3))) -> c4(A__SEL(s(mark(z0)), a__sel(mark(x2), mark(x3))), MARK(sel(x2, x3)))
   A__SEL(s(0), cons(x1, sel(x2, x3))) -> c4(A__SEL(0, a__sel(mark(x2), mark(x3))), MARK(sel(x2, x3)))
   A__SEL(s(x0), cons(x1, sel(x2, x3))) -> c4(MARK(sel(x2, x3)))
   A__SEL(s(cons(z0, z1)), cons(x1, sel(x2, x3))) -> c4(MARK(sel(x2, x3)))
   A__SEL(s(x0), cons(x1, cons(from(z0), x3))) -> c4(A__SEL(mark(x0), cons(a__from(mark(z0)), x3)), MARK(cons(from(z0), x3)))
   A__SEL(s(x0), cons(x1, cons(sel(z0, z1), x3))) -> c4(A__SEL(mark(x0), cons(a__sel(mark(z0), mark(z1)), x3)), MARK(cons(sel(z0, z1), x3)))
   A__SEL(s(x0), cons(x1, cons(cons(z0, z1), x3))) -> c4(A__SEL(mark(x0), cons(cons(mark(z0), z1), x3)), MARK(cons(cons(z0, z1), x3)))
   A__SEL(s(x0), cons(x1, cons(s(z0), x3))) -> c4(A__SEL(mark(x0), cons(s(mark(z0)), x3)), MARK(cons(s(z0), x3)))
   A__SEL(s(x0), cons(x1, cons(0, x3))) -> c4(A__SEL(mark(x0), cons(0, x3)), MARK(cons(0, x3)))
   A__SEL(s(from(z0)), cons(x1, cons(x2, x3))) -> c4(A__SEL(a__from(mark(z0)), cons(mark(x2), x3)), MARK(cons(x2, x3)))
   A__SEL(s(sel(z0, z1)), cons(x1, cons(x2, x3))) -> c4(A__SEL(a__sel(mark(z0), mark(z1)), cons(mark(x2), x3)), MARK(cons(x2, x3)))
   A__SEL(s(s(z0)), cons(x1, cons(x2, x3))) -> c4(A__SEL(s(mark(z0)), cons(mark(x2), x3)), MARK(cons(x2, x3)))
   A__SEL(s(0), cons(x1, cons(x2, x3))) -> c4(A__SEL(0, cons(mark(x2), x3)), MARK(cons(x2, x3)))
   A__SEL(s(x0), cons(x1, cons(x2, x3))) -> c4(MARK(cons(x2, x3)))
   A__SEL(s(cons(z0, z1)), cons(x1, cons(x2, x3))) -> c4(MARK(cons(x2, x3)))
   A__SEL(s(from(from(z0))), cons(x1, x2)) -> c4(A__SEL(a__from(a__from(mark(z0))), mark(x2)), MARK(x2))
   A__SEL(s(from(sel(z0, z1))), cons(x1, x2)) -> c4(A__SEL(a__from(a__sel(mark(z0), mark(z1))), mark(x2)), MARK(x2))
   A__SEL(s(from(cons(z0, z1))), cons(x1, x2)) -> c4(A__SEL(a__from(cons(mark(z0), z1)), mark(x2)), MARK(x2))
   A__SEL(s(from(s(z0))), cons(x1, x2)) -> c4(A__SEL(a__from(s(mark(z0))), mark(x2)), MARK(x2))
   A__SEL(s(from(0)), cons(x1, x2)) -> c4(A__SEL(a__from(0), mark(x2)), MARK(x2))
   A__SEL(s(from(x0)), cons(x1, s(z0))) -> c4(MARK(s(z0)))
   A__SEL(s(from(x0)), cons(x1, x2)) -> c4(MARK(x2))
   A__SEL(s(sel(x0, from(z0))), cons(x2, x3)) -> c4(A__SEL(a__sel(mark(x0), a__from(mark(z0))), mark(x3)), MARK(x3))
   A__SEL(s(sel(x0, sel(z0, z1))), cons(x2, x3)) -> c4(A__SEL(a__sel(mark(x0), a__sel(mark(z0), mark(z1))), mark(x3)), MARK(x3))
   A__SEL(s(sel(x0, cons(z0, z1))), cons(x2, x3)) -> c4(A__SEL(a__sel(mark(x0), cons(mark(z0), z1)), mark(x3)), MARK(x3))
   A__SEL(s(sel(x0, s(z0))), cons(x2, x3)) -> c4(A__SEL(a__sel(mark(x0), s(mark(z0))), mark(x3)), MARK(x3))
   A__SEL(s(sel(x0, 0)), cons(x2, x3)) -> c4(A__SEL(a__sel(mark(x0), 0), mark(x3)), MARK(x3))
   A__SEL(s(sel(from(z0), x1)), cons(x2, x3)) -> c4(A__SEL(a__sel(a__from(mark(z0)), mark(x1)), mark(x3)), MARK(x3))
   A__SEL(s(sel(sel(z0, z1), x1)), cons(x2, x3)) -> c4(A__SEL(a__sel(a__sel(mark(z0), mark(z1)), mark(x1)), mark(x3)), MARK(x3))
   A__SEL(s(sel(cons(z0, z1), x1)), cons(x2, x3)) -> c4(A__SEL(a__sel(cons(mark(z0), z1), mark(x1)), mark(x3)), MARK(x3))
   A__SEL(s(sel(s(z0), x1)), cons(x2, x3)) -> c4(A__SEL(a__sel(s(mark(z0)), mark(x1)), mark(x3)), MARK(x3))
   A__SEL(s(sel(0, x1)), cons(x2, x3)) -> c4(A__SEL(a__sel(0, mark(x1)), mark(x3)), MARK(x3))
   A__SEL(s(sel(x0, x1)), cons(x2, s(z0))) -> c4(MARK(s(z0)))
   A__SEL(s(sel(x0, x1)), cons(x2, x3)) -> c4(MARK(x3))
   A__SEL(s(s(from(z0))), cons(x1, x2)) -> c4(A__SEL(s(a__from(mark(z0))), mark(x2)), MARK(x2))
   A__SEL(s(s(sel(z0, z1))), cons(x1, x2)) -> c4(A__SEL(s(a__sel(mark(z0), mark(z1))), mark(x2)), MARK(x2))
   A__SEL(s(s(cons(z0, z1))), cons(x1, x2)) -> c4(A__SEL(s(cons(mark(z0), z1)), mark(x2)), MARK(x2))
   A__SEL(s(s(s(z0))), cons(x1, x2)) -> c4(A__SEL(s(s(mark(z0))), mark(x2)), MARK(x2))
   A__SEL(s(s(0)), cons(x1, x2)) -> c4(A__SEL(s(0), mark(x2)), MARK(x2))
   A__SEL(s(s(x0)), cons(x1, s(z0))) -> c4(MARK(s(z0)))
   A__SEL(s(0), cons(x0, s(z0))) -> c4(MARK(s(z0)))
   MARK(sel(x0, from(x1))) -> c7(A__SEL(mark(x0), cons(mark(mark(x1)), from(s(mark(x1))))), MARK(x0))
   MARK(sel(x0, from(from(z0)))) -> c7(A__SEL(mark(x0), a__from(a__from(mark(z0)))), MARK(x0))
   MARK(sel(x0, from(sel(z0, z1)))) -> c7(A__SEL(mark(x0), a__from(a__sel(mark(z0), mark(z1)))), MARK(x0))
   MARK(sel(x0, from(cons(z0, z1)))) -> c7(A__SEL(mark(x0), a__from(cons(mark(z0), z1))), MARK(x0))
   MARK(sel(x0, from(s(z0)))) -> c7(A__SEL(mark(x0), a__from(s(mark(z0)))), MARK(x0))
   MARK(sel(x0, from(0))) -> c7(A__SEL(mark(x0), a__from(0)), MARK(x0))
   MARK(sel(from(z0), from(x1))) -> c7(A__SEL(a__from(mark(z0)), a__from(mark(x1))), MARK(from(z0)))
   MARK(sel(sel(z0, z1), from(x1))) -> c7(A__SEL(a__sel(mark(z0), mark(z1)), a__from(mark(x1))), MARK(sel(z0, z1)))
   MARK(sel(s(z0), from(x1))) -> c7(A__SEL(s(mark(z0)), a__from(mark(x1))), MARK(s(z0)))
   MARK(sel(x0, from(x1))) -> c7(MARK(x0))
   MARK(sel(cons(z0, z1), from(x1))) -> c7(MARK(cons(z0, z1)))
   MARK(sel(0, from(x1))) -> c7(A__SEL(0, a__from(mark(x1))))
   MARK(sel(x0, sel(x1, from(z0)))) -> c7(A__SEL(mark(x0), a__sel(mark(x1), a__from(mark(z0)))), MARK(x0))
   MARK(sel(x0, sel(x1, sel(z0, z1)))) -> c7(A__SEL(mark(x0), a__sel(mark(x1), a__sel(mark(z0), mark(z1)))), MARK(x0))
   MARK(sel(x0, sel(x1, cons(z0, z1)))) -> c7(A__SEL(mark(x0), a__sel(mark(x1), cons(mark(z0), z1))), MARK(x0))
   MARK(sel(x0, sel(x1, s(z0)))) -> c7(A__SEL(mark(x0), a__sel(mark(x1), s(mark(z0)))), MARK(x0))
   MARK(sel(x0, sel(x1, 0))) -> c7(A__SEL(mark(x0), a__sel(mark(x1), 0)), MARK(x0))
   MARK(sel(x0, sel(from(z0), x2))) -> c7(A__SEL(mark(x0), a__sel(a__from(mark(z0)), mark(x2))), MARK(x0))
   MARK(sel(x0, sel(sel(z0, z1), x2))) -> c7(A__SEL(mark(x0), a__sel(a__sel(mark(z0), mark(z1)), mark(x2))), MARK(x0))
   MARK(sel(x0, sel(cons(z0, z1), x2))) -> c7(A__SEL(mark(x0), a__sel(cons(mark(z0), z1), mark(x2))), MARK(x0))
   MARK(sel(x0, sel(s(z0), x2))) -> c7(A__SEL(mark(x0), a__sel(s(mark(z0)), mark(x2))), MARK(x0))
   MARK(sel(x0, sel(0, x2))) -> c7(A__SEL(mark(x0), a__sel(0, mark(x2))), MARK(x0))
   MARK(sel(from(z0), sel(x1, x2))) -> c7(A__SEL(a__from(mark(z0)), a__sel(mark(x1), mark(x2))), MARK(from(z0)))
   MARK(sel(sel(z0, z1), sel(x1, x2))) -> c7(A__SEL(a__sel(mark(z0), mark(z1)), a__sel(mark(x1), mark(x2))), MARK(sel(z0, z1)))
   MARK(sel(s(z0), sel(x1, x2))) -> c7(A__SEL(s(mark(z0)), a__sel(mark(x1), mark(x2))), MARK(s(z0)))
   MARK(sel(x0, sel(x1, x2))) -> c7(MARK(x0))
   MARK(sel(cons(z0, z1), sel(x1, x2))) -> c7(MARK(cons(z0, z1)))
   MARK(sel(0, sel(x1, x2))) -> c7(A__SEL(0, a__sel(mark(x1), mark(x2))))
   MARK(sel(x0, cons(from(z0), x2))) -> c7(A__SEL(mark(x0), cons(a__from(mark(z0)), x2)), MARK(x0))
   MARK(sel(x0, cons(sel(z0, z1), x2))) -> c7(A__SEL(mark(x0), cons(a__sel(mark(z0), mark(z1)), x2)), MARK(x0))
   MARK(sel(x0, cons(cons(z0, z1), x2))) -> c7(A__SEL(mark(x0), cons(cons(mark(z0), z1), x2)), MARK(x0))
   MARK(sel(x0, cons(s(z0), x2))) -> c7(A__SEL(mark(x0), cons(s(mark(z0)), x2)), MARK(x0))
   MARK(sel(x0, cons(0, x2))) -> c7(A__SEL(mark(x0), cons(0, x2)), MARK(x0))
   MARK(sel(from(z0), cons(x1, x2))) -> c7(A__SEL(a__from(mark(z0)), cons(mark(x1), x2)), MARK(from(z0)))
   MARK(sel(sel(z0, z1), cons(x1, x2))) -> c7(A__SEL(a__sel(mark(z0), mark(z1)), cons(mark(x1), x2)), MARK(sel(z0, z1)))
   MARK(sel(s(z0), cons(x1, x2))) -> c7(A__SEL(s(mark(z0)), cons(mark(x1), x2)), MARK(s(z0)))
   MARK(sel(cons(z0, z1), cons(x1, x2))) -> c7(MARK(cons(z0, z1)))
   MARK(sel(0, cons(x1, x2))) -> c7(A__SEL(0, cons(mark(x1), x2)))
   MARK(sel(from(from(z0)), x1)) -> c7(A__SEL(a__from(a__from(mark(z0))), mark(x1)), MARK(from(from(z0))))
   MARK(sel(from(sel(z0, z1)), x1)) -> c7(A__SEL(a__from(a__sel(mark(z0), mark(z1))), mark(x1)), MARK(from(sel(z0, z1))))
   MARK(sel(from(cons(z0, z1)), x1)) -> c7(A__SEL(a__from(cons(mark(z0), z1)), mark(x1)), MARK(from(cons(z0, z1))))
   MARK(sel(from(s(z0)), x1)) -> c7(A__SEL(a__from(s(mark(z0))), mark(x1)), MARK(from(s(z0))))
   MARK(sel(from(0), x1)) -> c7(A__SEL(a__from(0), mark(x1)), MARK(from(0)))
   MARK(sel(from(x0), x1)) -> c7(MARK(from(x0)))
   MARK(sel(from(x0), s(z0))) -> c7(MARK(from(x0)))
   MARK(sel(from(x0), 0)) -> c7(MARK(from(x0)))
   MARK(sel(sel(x0, from(z0)), x2)) -> c7(A__SEL(a__sel(mark(x0), a__from(mark(z0))), mark(x2)), MARK(sel(x0, from(z0))))
   MARK(sel(sel(x0, sel(z0, z1)), x2)) -> c7(A__SEL(a__sel(mark(x0), a__sel(mark(z0), mark(z1))), mark(x2)), MARK(sel(x0, sel(z0, z1))))
   MARK(sel(sel(x0, cons(z0, z1)), x2)) -> c7(A__SEL(a__sel(mark(x0), cons(mark(z0), z1)), mark(x2)), MARK(sel(x0, cons(z0, z1))))
   MARK(sel(sel(x0, s(z0)), x2)) -> c7(A__SEL(a__sel(mark(x0), s(mark(z0))), mark(x2)), MARK(sel(x0, s(z0))))
   MARK(sel(sel(x0, 0), x2)) -> c7(A__SEL(a__sel(mark(x0), 0), mark(x2)), MARK(sel(x0, 0)))
   MARK(sel(sel(from(z0), x1), x2)) -> c7(A__SEL(a__sel(a__from(mark(z0)), mark(x1)), mark(x2)), MARK(sel(from(z0), x1)))
   MARK(sel(sel(sel(z0, z1), x1), x2)) -> c7(A__SEL(a__sel(a__sel(mark(z0), mark(z1)), mark(x1)), mark(x2)), MARK(sel(sel(z0, z1), x1)))
   MARK(sel(sel(cons(z0, z1), x1), x2)) -> c7(A__SEL(a__sel(cons(mark(z0), z1), mark(x1)), mark(x2)), MARK(sel(cons(z0, z1), x1)))
   MARK(sel(sel(s(z0), x1), x2)) -> c7(A__SEL(a__sel(s(mark(z0)), mark(x1)), mark(x2)), MARK(sel(s(z0), x1)))
   MARK(sel(sel(0, x1), x2)) -> c7(A__SEL(a__sel(0, mark(x1)), mark(x2)), MARK(sel(0, x1)))
   MARK(sel(sel(x0, x1), s(z0))) -> c7(MARK(sel(x0, x1)))
   MARK(sel(sel(x0, x1), 0)) -> c7(MARK(sel(x0, x1)))
   MARK(sel(sel(x0, x1), x2)) -> c7(MARK(sel(x0, x1)))
   MARK(sel(s(from(z0)), x1)) -> c7(A__SEL(s(a__from(mark(z0))), mark(x1)), MARK(s(from(z0))))
   MARK(sel(s(sel(z0, z1)), x1)) -> c7(A__SEL(s(a__sel(mark(z0), mark(z1))), mark(x1)), MARK(s(sel(z0, z1))))
   MARK(sel(s(cons(z0, z1)), x1)) -> c7(A__SEL(s(cons(mark(z0), z1)), mark(x1)), MARK(s(cons(z0, z1))))
   MARK(sel(s(s(z0)), x1)) -> c7(A__SEL(s(s(mark(z0))), mark(x1)), MARK(s(s(z0))))
   MARK(sel(s(0), x1)) -> c7(A__SEL(s(0), mark(x1)), MARK(s(0)))
   MARK(sel(s(x0), x1)) -> c7(MARK(s(x0)))
   MARK(sel(s(x0), s(z0))) -> c7(MARK(s(x0)))
   MARK(sel(s(x0), 0)) -> c7(MARK(s(x0)))
   MARK(sel(x0, from(x1))) -> c8(A__SEL(mark(x0), cons(mark(mark(x1)), from(s(mark(x1))))), MARK(from(x1)))
   MARK(sel(x0, from(from(z0)))) -> c8(A__SEL(mark(x0), a__from(a__from(mark(z0)))), MARK(from(from(z0))))
   MARK(sel(x0, from(sel(z0, z1)))) -> c8(A__SEL(mark(x0), a__from(a__sel(mark(z0), mark(z1)))), MARK(from(sel(z0, z1))))
   MARK(sel(x0, from(cons(z0, z1)))) -> c8(A__SEL(mark(x0), a__from(cons(mark(z0), z1))), MARK(from(cons(z0, z1))))
   MARK(sel(x0, from(s(z0)))) -> c8(A__SEL(mark(x0), a__from(s(mark(z0)))), MARK(from(s(z0))))
   MARK(sel(x0, from(0))) -> c8(A__SEL(mark(x0), a__from(0)), MARK(from(0)))
   MARK(sel(from(z0), from(x1))) -> c8(A__SEL(a__from(mark(z0)), a__from(mark(x1))), MARK(from(x1)))
   MARK(sel(sel(z0, z1), from(x1))) -> c8(A__SEL(a__sel(mark(z0), mark(z1)), a__from(mark(x1))), MARK(from(x1)))
   MARK(sel(s(z0), from(x1))) -> c8(A__SEL(s(mark(z0)), a__from(mark(x1))), MARK(from(x1)))
   MARK(sel(0, from(x1))) -> c8(A__SEL(0, a__from(mark(x1))), MARK(from(x1)))
   MARK(sel(x0, from(x1))) -> c8(MARK(from(x1)))
   MARK(sel(cons(z0, z1), from(x1))) -> c8(MARK(from(x1)))
   MARK(sel(x0, sel(x1, from(z0)))) -> c8(A__SEL(mark(x0), a__sel(mark(x1), a__from(mark(z0)))), MARK(sel(x1, from(z0))))
   MARK(sel(x0, sel(x1, sel(z0, z1)))) -> c8(A__SEL(mark(x0), a__sel(mark(x1), a__sel(mark(z0), mark(z1)))), MARK(sel(x1, sel(z0, z1))))
   MARK(sel(x0, sel(x1, cons(z0, z1)))) -> c8(A__SEL(mark(x0), a__sel(mark(x1), cons(mark(z0), z1))), MARK(sel(x1, cons(z0, z1))))
   MARK(sel(x0, sel(x1, s(z0)))) -> c8(A__SEL(mark(x0), a__sel(mark(x1), s(mark(z0)))), MARK(sel(x1, s(z0))))
   MARK(sel(x0, sel(x1, 0))) -> c8(A__SEL(mark(x0), a__sel(mark(x1), 0)), MARK(sel(x1, 0)))
   MARK(sel(x0, sel(from(z0), x2))) -> c8(A__SEL(mark(x0), a__sel(a__from(mark(z0)), mark(x2))), MARK(sel(from(z0), x2)))
   MARK(sel(x0, sel(sel(z0, z1), x2))) -> c8(A__SEL(mark(x0), a__sel(a__sel(mark(z0), mark(z1)), mark(x2))), MARK(sel(sel(z0, z1), x2)))
   MARK(sel(x0, sel(cons(z0, z1), x2))) -> c8(A__SEL(mark(x0), a__sel(cons(mark(z0), z1), mark(x2))), MARK(sel(cons(z0, z1), x2)))
   MARK(sel(x0, sel(s(z0), x2))) -> c8(A__SEL(mark(x0), a__sel(s(mark(z0)), mark(x2))), MARK(sel(s(z0), x2)))
   MARK(sel(x0, sel(0, x2))) -> c8(A__SEL(mark(x0), a__sel(0, mark(x2))), MARK(sel(0, x2)))
   MARK(sel(from(z0), sel(x1, x2))) -> c8(A__SEL(a__from(mark(z0)), a__sel(mark(x1), mark(x2))), MARK(sel(x1, x2)))
   MARK(sel(sel(z0, z1), sel(x1, x2))) -> c8(A__SEL(a__sel(mark(z0), mark(z1)), a__sel(mark(x1), mark(x2))), MARK(sel(x1, x2)))
   MARK(sel(s(z0), sel(x1, x2))) -> c8(A__SEL(s(mark(z0)), a__sel(mark(x1), mark(x2))), MARK(sel(x1, x2)))
   MARK(sel(0, sel(x1, x2))) -> c8(A__SEL(0, a__sel(mark(x1), mark(x2))), MARK(sel(x1, x2)))
   MARK(sel(x0, sel(x1, x2))) -> c8(MARK(sel(x1, x2)))
   MARK(sel(cons(z0, z1), sel(x1, x2))) -> c8(MARK(sel(x1, x2)))
   MARK(sel(x0, cons(from(z0), x2))) -> c8(A__SEL(mark(x0), cons(a__from(mark(z0)), x2)), MARK(cons(from(z0), x2)))
   MARK(sel(x0, cons(sel(z0, z1), x2))) -> c8(A__SEL(mark(x0), cons(a__sel(mark(z0), mark(z1)), x2)), MARK(cons(sel(z0, z1), x2)))
   MARK(sel(x0, cons(cons(z0, z1), x2))) -> c8(A__SEL(mark(x0), cons(cons(mark(z0), z1), x2)), MARK(cons(cons(z0, z1), x2)))
   MARK(sel(x0, cons(s(z0), x2))) -> c8(A__SEL(mark(x0), cons(s(mark(z0)), x2)), MARK(cons(s(z0), x2)))
   MARK(sel(x0, cons(0, x2))) -> c8(A__SEL(mark(x0), cons(0, x2)), MARK(cons(0, x2)))
   MARK(sel(from(z0), cons(x1, x2))) -> c8(A__SEL(a__from(mark(z0)), cons(mark(x1), x2)), MARK(cons(x1, x2)))
   MARK(sel(sel(z0, z1), cons(x1, x2))) -> c8(A__SEL(a__sel(mark(z0), mark(z1)), cons(mark(x1), x2)), MARK(cons(x1, x2)))
   MARK(sel(s(z0), cons(x1, x2))) -> c8(A__SEL(s(mark(z0)), cons(mark(x1), x2)), MARK(cons(x1, x2)))
   MARK(sel(0, cons(x1, x2))) -> c8(A__SEL(0, cons(mark(x1), x2)), MARK(cons(x1, x2)))
   MARK(sel(x0, cons(x1, x2))) -> c8(MARK(cons(x1, x2)))
   MARK(sel(cons(z0, z1), cons(x1, x2))) -> c8(MARK(cons(x1, x2)))
   MARK(sel(from(from(z0)), x1)) -> c8(A__SEL(a__from(a__from(mark(z0))), mark(x1)), MARK(x1))
   MARK(sel(from(sel(z0, z1)), x1)) -> c8(A__SEL(a__from(a__sel(mark(z0), mark(z1))), mark(x1)), MARK(x1))
   MARK(sel(from(cons(z0, z1)), x1)) -> c8(A__SEL(a__from(cons(mark(z0), z1)), mark(x1)), MARK(x1))
   MARK(sel(from(s(z0)), x1)) -> c8(A__SEL(a__from(s(mark(z0))), mark(x1)), MARK(x1))
   MARK(sel(from(0), x1)) -> c8(A__SEL(a__from(0), mark(x1)), MARK(x1))
   MARK(sel(from(x0), s(z0))) -> c8(MARK(s(z0)))
   MARK(sel(from(x0), x1)) -> c8(MARK(x1))
   MARK(sel(sel(x0, x1), s(z0))) -> c8(A__SEL(a__sel(mark(x0), mark(x1)), s(mark(z0))), MARK(s(z0)))
   MARK(sel(sel(x0, x1), x2)) -> c8(A__SEL(sel(mark(x0), mark(x1)), mark(x2)), MARK(x2))
   MARK(sel(sel(x0, from(z0)), x2)) -> c8(A__SEL(a__sel(mark(x0), a__from(mark(z0))), mark(x2)), MARK(x2))
   MARK(sel(sel(x0, sel(z0, z1)), x2)) -> c8(A__SEL(a__sel(mark(x0), a__sel(mark(z0), mark(z1))), mark(x2)), MARK(x2))
   MARK(sel(sel(x0, cons(z0, z1)), x2)) -> c8(A__SEL(a__sel(mark(x0), cons(mark(z0), z1)), mark(x2)), MARK(x2))
   MARK(sel(sel(x0, s(z0)), x2)) -> c8(A__SEL(a__sel(mark(x0), s(mark(z0))), mark(x2)), MARK(x2))
   MARK(sel(sel(x0, 0), x2)) -> c8(A__SEL(a__sel(mark(x0), 0), mark(x2)), MARK(x2))
   MARK(sel(sel(from(z0), x1), x2)) -> c8(A__SEL(a__sel(a__from(mark(z0)), mark(x1)), mark(x2)), MARK(x2))
   MARK(sel(sel(sel(z0, z1), x1), x2)) -> c8(A__SEL(a__sel(a__sel(mark(z0), mark(z1)), mark(x1)), mark(x2)), MARK(x2))
   MARK(sel(sel(cons(z0, z1), x1), x2)) -> c8(A__SEL(a__sel(cons(mark(z0), z1), mark(x1)), mark(x2)), MARK(x2))
   MARK(sel(sel(s(z0), x1), x2)) -> c8(A__SEL(a__sel(s(mark(z0)), mark(x1)), mark(x2)), MARK(x2))
   MARK(sel(sel(0, x1), x2)) -> c8(A__SEL(a__sel(0, mark(x1)), mark(x2)), MARK(x2))
K tuples:none
Defined Rule Symbols:   a__from_1, a__sel_2, mark_1

Defined Pair Symbols:   A__FROM_1, A__SEL_2, MARK_1

Compound Symbols:   c_1, c2_1, c6_2, c9_1, c10_1, c3_1, c4_1, c7_1, c8_2, c8_1, c3_2, c4_2, c7_2


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

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

(192)
Obligation:
Complexity Dependency Tuples Problem

Rules:
   a__from(z0) -> cons(mark(z0), from(s(z0)))
   a__from(z0) -> from(z0)
   a__sel(0, cons(z0, z1)) -> mark(z0)
   a__sel(s(z0), cons(z1, z2)) -> a__sel(mark(z0), mark(z2))
   a__sel(z0, z1) -> sel(z0, z1)
   mark(from(z0)) -> a__from(mark(z0))
   mark(sel(z0, z1)) -> a__sel(mark(z0), mark(z1))
   mark(cons(z0, z1)) -> cons(mark(z0), z1)
   mark(s(z0)) -> s(mark(z0))
   mark(0) -> 0
Tuples:
   A__FROM(z0) -> c(MARK(z0))
   A__SEL(0, cons(z0, z1)) -> c2(MARK(z0))
   MARK(from(z0)) -> c6(A__FROM(mark(z0)), MARK(z0))
   MARK(cons(z0, z1)) -> c9(MARK(z0))
   MARK(s(z0)) -> c10(MARK(z0))
   A__SEL(s(x0), cons(x1, s(z0))) -> c3(MARK(x0))
   A__SEL(s(x0), cons(x1, 0)) -> c3(MARK(x0))
   A__SEL(s(cons(z0, z1)), cons(x1, x2)) -> c3(MARK(cons(z0, z1)))
   A__SEL(s(x0), cons(x1, s(z0))) -> c4(MARK(s(z0)))
   A__SEL(s(cons(z0, z1)), cons(x1, x2)) -> c4(MARK(x2))
   MARK(sel(x0, s(z0))) -> c7(MARK(x0))
   MARK(sel(x0, 0)) -> c7(MARK(x0))
   MARK(sel(cons(z0, z1), x1)) -> c7(MARK(cons(z0, z1)))
   MARK(sel(s(z0), x1)) -> c8(A__SEL(s(mark(z0)), mark(x1)), MARK(x1))
   MARK(sel(0, x1)) -> c8(A__SEL(0, mark(x1)), MARK(x1))
   MARK(sel(x0, s(z0))) -> c8(MARK(s(z0)))
   MARK(sel(cons(z0, z1), x1)) -> c8(MARK(x1))
   A__SEL(s(x0), cons(x1, from(x2))) -> c3(A__SEL(mark(x0), cons(mark(mark(x2)), from(s(mark(x2))))), MARK(x0))
   A__SEL(s(x0), cons(x1, from(from(z0)))) -> c3(A__SEL(mark(x0), a__from(a__from(mark(z0)))), MARK(x0))
   A__SEL(s(x0), cons(x1, from(sel(z0, z1)))) -> c3(A__SEL(mark(x0), a__from(a__sel(mark(z0), mark(z1)))), MARK(x0))
   A__SEL(s(x0), cons(x1, from(cons(z0, z1)))) -> c3(A__SEL(mark(x0), a__from(cons(mark(z0), z1))), MARK(x0))
   A__SEL(s(x0), cons(x1, from(s(z0)))) -> c3(A__SEL(mark(x0), a__from(s(mark(z0)))), MARK(x0))
   A__SEL(s(x0), cons(x1, from(0))) -> c3(A__SEL(mark(x0), a__from(0)), MARK(x0))
   A__SEL(s(from(z0)), cons(x1, from(x2))) -> c3(A__SEL(a__from(mark(z0)), a__from(mark(x2))), MARK(from(z0)))
   A__SEL(s(sel(z0, z1)), cons(x1, from(x2))) -> c3(A__SEL(a__sel(mark(z0), mark(z1)), a__from(mark(x2))), MARK(sel(z0, z1)))
   A__SEL(s(s(z0)), cons(x1, from(x2))) -> c3(A__SEL(s(mark(z0)), a__from(mark(x2))), MARK(s(z0)))
   A__SEL(s(x0), cons(x1, from(x2))) -> c3(MARK(x0))
   A__SEL(s(cons(z0, z1)), cons(x1, from(x2))) -> c3(MARK(cons(z0, z1)))
   A__SEL(s(0), cons(x1, from(x2))) -> c3(A__SEL(0, a__from(mark(x2))))
   A__SEL(s(x0), cons(x1, sel(x2, from(z0)))) -> c3(A__SEL(mark(x0), a__sel(mark(x2), a__from(mark(z0)))), MARK(x0))
   A__SEL(s(x0), cons(x1, sel(x2, sel(z0, z1)))) -> c3(A__SEL(mark(x0), a__sel(mark(x2), a__sel(mark(z0), mark(z1)))), MARK(x0))
   A__SEL(s(x0), cons(x1, sel(x2, cons(z0, z1)))) -> c3(A__SEL(mark(x0), a__sel(mark(x2), cons(mark(z0), z1))), MARK(x0))
   A__SEL(s(x0), cons(x1, sel(x2, s(z0)))) -> c3(A__SEL(mark(x0), a__sel(mark(x2), s(mark(z0)))), MARK(x0))
   A__SEL(s(x0), cons(x1, sel(x2, 0))) -> c3(A__SEL(mark(x0), a__sel(mark(x2), 0)), MARK(x0))
   A__SEL(s(x0), cons(x1, sel(from(z0), x3))) -> c3(A__SEL(mark(x0), a__sel(a__from(mark(z0)), mark(x3))), MARK(x0))
   A__SEL(s(x0), cons(x1, sel(sel(z0, z1), x3))) -> c3(A__SEL(mark(x0), a__sel(a__sel(mark(z0), mark(z1)), mark(x3))), MARK(x0))
   A__SEL(s(x0), cons(x1, sel(cons(z0, z1), x3))) -> c3(A__SEL(mark(x0), a__sel(cons(mark(z0), z1), mark(x3))), MARK(x0))
   A__SEL(s(x0), cons(x1, sel(s(z0), x3))) -> c3(A__SEL(mark(x0), a__sel(s(mark(z0)), mark(x3))), MARK(x0))
   A__SEL(s(x0), cons(x1, sel(0, x3))) -> c3(A__SEL(mark(x0), a__sel(0, mark(x3))), MARK(x0))
   A__SEL(s(from(z0)), cons(x1, sel(x2, x3))) -> c3(A__SEL(a__from(mark(z0)), a__sel(mark(x2), mark(x3))), MARK(from(z0)))
   A__SEL(s(sel(z0, z1)), cons(x1, sel(x2, x3))) -> c3(A__SEL(a__sel(mark(z0), mark(z1)), a__sel(mark(x2), mark(x3))), MARK(sel(z0, z1)))
   A__SEL(s(s(z0)), cons(x1, sel(x2, x3))) -> c3(A__SEL(s(mark(z0)), a__sel(mark(x2), mark(x3))), MARK(s(z0)))
   A__SEL(s(x0), cons(x1, sel(x2, x3))) -> c3(MARK(x0))
   A__SEL(s(cons(z0, z1)), cons(x1, sel(x2, x3))) -> c3(MARK(cons(z0, z1)))
   A__SEL(s(0), cons(x1, sel(x2, x3))) -> c3(A__SEL(0, a__sel(mark(x2), mark(x3))))
   A__SEL(s(x0), cons(x1, cons(from(z0), x3))) -> c3(A__SEL(mark(x0), cons(a__from(mark(z0)), x3)), MARK(x0))
   A__SEL(s(x0), cons(x1, cons(sel(z0, z1), x3))) -> c3(A__SEL(mark(x0), cons(a__sel(mark(z0), mark(z1)), x3)), MARK(x0))
   A__SEL(s(x0), cons(x1, cons(cons(z0, z1), x3))) -> c3(A__SEL(mark(x0), cons(cons(mark(z0), z1), x3)), MARK(x0))
   A__SEL(s(x0), cons(x1, cons(s(z0), x3))) -> c3(A__SEL(mark(x0), cons(s(mark(z0)), x3)), MARK(x0))
   A__SEL(s(x0), cons(x1, cons(0, x3))) -> c3(A__SEL(mark(x0), cons(0, x3)), MARK(x0))
   A__SEL(s(from(z0)), cons(x1, cons(x2, x3))) -> c3(A__SEL(a__from(mark(z0)), cons(mark(x2), x3)), MARK(from(z0)))
   A__SEL(s(sel(z0, z1)), cons(x1, cons(x2, x3))) -> c3(A__SEL(a__sel(mark(z0), mark(z1)), cons(mark(x2), x3)), MARK(sel(z0, z1)))
   A__SEL(s(s(z0)), cons(x1, cons(x2, x3))) -> c3(A__SEL(s(mark(z0)), cons(mark(x2), x3)), MARK(s(z0)))
   A__SEL(s(cons(z0, z1)), cons(x1, cons(x2, x3))) -> c3(MARK(cons(z0, z1)))
   A__SEL(s(0), cons(x1, cons(x2, x3))) -> c3(A__SEL(0, cons(mark(x2), x3)))
   A__SEL(s(from(from(z0))), cons(x1, x2)) -> c3(A__SEL(a__from(a__from(mark(z0))), mark(x2)), MARK(from(from(z0))))
   A__SEL(s(from(sel(z0, z1))), cons(x1, x2)) -> c3(A__SEL(a__from(a__sel(mark(z0), mark(z1))), mark(x2)), MARK(from(sel(z0, z1))))
   A__SEL(s(from(cons(z0, z1))), cons(x1, x2)) -> c3(A__SEL(a__from(cons(mark(z0), z1)), mark(x2)), MARK(from(cons(z0, z1))))
   A__SEL(s(from(s(z0))), cons(x1, x2)) -> c3(A__SEL(a__from(s(mark(z0))), mark(x2)), MARK(from(s(z0))))
   A__SEL(s(from(0)), cons(x1, x2)) -> c3(A__SEL(a__from(0), mark(x2)), MARK(from(0)))
   A__SEL(s(from(x0)), cons(x1, x2)) -> c3(MARK(from(x0)))
   A__SEL(s(from(x0)), cons(x1, s(z0))) -> c3(MARK(from(x0)))
   A__SEL(s(from(x0)), cons(x1, 0)) -> c3(MARK(from(x0)))
   A__SEL(s(sel(x0, from(z0))), cons(x2, x3)) -> c3(A__SEL(a__sel(mark(x0), a__from(mark(z0))), mark(x3)), MARK(sel(x0, from(z0))))
   A__SEL(s(sel(x0, sel(z0, z1))), cons(x2, x3)) -> c3(A__SEL(a__sel(mark(x0), a__sel(mark(z0), mark(z1))), mark(x3)), MARK(sel(x0, sel(z0, z1))))
   A__SEL(s(sel(x0, cons(z0, z1))), cons(x2, x3)) -> c3(A__SEL(a__sel(mark(x0), cons(mark(z0), z1)), mark(x3)), MARK(sel(x0, cons(z0, z1))))
   A__SEL(s(sel(x0, s(z0))), cons(x2, x3)) -> c3(A__SEL(a__sel(mark(x0), s(mark(z0))), mark(x3)), MARK(sel(x0, s(z0))))
   A__SEL(s(sel(x0, 0)), cons(x2, x3)) -> c3(A__SEL(a__sel(mark(x0), 0), mark(x3)), MARK(sel(x0, 0)))
   A__SEL(s(sel(from(z0), x1)), cons(x2, x3)) -> c3(A__SEL(a__sel(a__from(mark(z0)), mark(x1)), mark(x3)), MARK(sel(from(z0), x1)))
   A__SEL(s(sel(sel(z0, z1), x1)), cons(x2, x3)) -> c3(A__SEL(a__sel(a__sel(mark(z0), mark(z1)), mark(x1)), mark(x3)), MARK(sel(sel(z0, z1), x1)))
   A__SEL(s(sel(cons(z0, z1), x1)), cons(x2, x3)) -> c3(A__SEL(a__sel(cons(mark(z0), z1), mark(x1)), mark(x3)), MARK(sel(cons(z0, z1), x1)))
   A__SEL(s(sel(s(z0), x1)), cons(x2, x3)) -> c3(A__SEL(a__sel(s(mark(z0)), mark(x1)), mark(x3)), MARK(sel(s(z0), x1)))
   A__SEL(s(sel(0, x1)), cons(x2, x3)) -> c3(A__SEL(a__sel(0, mark(x1)), mark(x3)), MARK(sel(0, x1)))
   A__SEL(s(sel(x0, x1)), cons(x2, s(z0))) -> c3(MARK(sel(x0, x1)))
   A__SEL(s(sel(x0, x1)), cons(x2, 0)) -> c3(MARK(sel(x0, x1)))
   A__SEL(s(sel(x0, x1)), cons(x2, x3)) -> c3(MARK(sel(x0, x1)))
   A__SEL(s(s(from(z0))), cons(x1, x2)) -> c3(A__SEL(s(a__from(mark(z0))), mark(x2)), MARK(s(from(z0))))
   A__SEL(s(s(sel(z0, z1))), cons(x1, x2)) -> c3(A__SEL(s(a__sel(mark(z0), mark(z1))), mark(x2)), MARK(s(sel(z0, z1))))
   A__SEL(s(s(cons(z0, z1))), cons(x1, x2)) -> c3(A__SEL(s(cons(mark(z0), z1)), mark(x2)), MARK(s(cons(z0, z1))))
   A__SEL(s(s(s(z0))), cons(x1, x2)) -> c3(A__SEL(s(s(mark(z0))), mark(x2)), MARK(s(s(z0))))
   A__SEL(s(s(0)), cons(x1, x2)) -> c3(A__SEL(s(0), mark(x2)), MARK(s(0)))
   A__SEL(s(s(x0)), cons(x1, x2)) -> c3(MARK(s(x0)))
   A__SEL(s(s(x0)), cons(x1, s(z0))) -> c3(MARK(s(x0)))
   A__SEL(s(s(x0)), cons(x1, 0)) -> c3(MARK(s(x0)))
   A__SEL(s(x0), cons(x1, from(x2))) -> c4(A__SEL(mark(x0), cons(mark(mark(x2)), from(s(mark(x2))))), MARK(from(x2)))
   A__SEL(s(x0), cons(x1, from(from(z0)))) -> c4(A__SEL(mark(x0), a__from(a__from(mark(z0)))), MARK(from(from(z0))))
   A__SEL(s(x0), cons(x1, from(sel(z0, z1)))) -> c4(A__SEL(mark(x0), a__from(a__sel(mark(z0), mark(z1)))), MARK(from(sel(z0, z1))))
   A__SEL(s(x0), cons(x1, from(cons(z0, z1)))) -> c4(A__SEL(mark(x0), a__from(cons(mark(z0), z1))), MARK(from(cons(z0, z1))))
   A__SEL(s(x0), cons(x1, from(s(z0)))) -> c4(A__SEL(mark(x0), a__from(s(mark(z0)))), MARK(from(s(z0))))
   A__SEL(s(x0), cons(x1, from(0))) -> c4(A__SEL(mark(x0), a__from(0)), MARK(from(0)))
   A__SEL(s(from(z0)), cons(x1, from(x2))) -> c4(A__SEL(a__from(mark(z0)), a__from(mark(x2))), MARK(from(x2)))
   A__SEL(s(sel(z0, z1)), cons(x1, from(x2))) -> c4(A__SEL(a__sel(mark(z0), mark(z1)), a__from(mark(x2))), MARK(from(x2)))
   A__SEL(s(s(z0)), cons(x1, from(x2))) -> c4(A__SEL(s(mark(z0)), a__from(mark(x2))), MARK(from(x2)))
   A__SEL(s(0), cons(x1, from(x2))) -> c4(A__SEL(0, a__from(mark(x2))), MARK(from(x2)))
   A__SEL(s(x0), cons(x1, from(x2))) -> c4(MARK(from(x2)))
   A__SEL(s(cons(z0, z1)), cons(x1, from(x2))) -> c4(MARK(from(x2)))
   A__SEL(s(x0), cons(x1, sel(x2, from(z0)))) -> c4(A__SEL(mark(x0), a__sel(mark(x2), a__from(mark(z0)))), MARK(sel(x2, from(z0))))
   A__SEL(s(x0), cons(x1, sel(x2, sel(z0, z1)))) -> c4(A__SEL(mark(x0), a__sel(mark(x2), a__sel(mark(z0), mark(z1)))), MARK(sel(x2, sel(z0, z1))))
   A__SEL(s(x0), cons(x1, sel(x2, cons(z0, z1)))) -> c4(A__SEL(mark(x0), a__sel(mark(x2), cons(mark(z0), z1))), MARK(sel(x2, cons(z0, z1))))
   A__SEL(s(x0), cons(x1, sel(x2, s(z0)))) -> c4(A__SEL(mark(x0), a__sel(mark(x2), s(mark(z0)))), MARK(sel(x2, s(z0))))
   A__SEL(s(x0), cons(x1, sel(x2, 0))) -> c4(A__SEL(mark(x0), a__sel(mark(x2), 0)), MARK(sel(x2, 0)))
   A__SEL(s(x0), cons(x1, sel(from(z0), x3))) -> c4(A__SEL(mark(x0), a__sel(a__from(mark(z0)), mark(x3))), MARK(sel(from(z0), x3)))
   A__SEL(s(x0), cons(x1, sel(sel(z0, z1), x3))) -> c4(A__SEL(mark(x0), a__sel(a__sel(mark(z0), mark(z1)), mark(x3))), MARK(sel(sel(z0, z1), x3)))
   A__SEL(s(x0), cons(x1, sel(cons(z0, z1), x3))) -> c4(A__SEL(mark(x0), a__sel(cons(mark(z0), z1), mark(x3))), MARK(sel(cons(z0, z1), x3)))
   A__SEL(s(x0), cons(x1, sel(s(z0), x3))) -> c4(A__SEL(mark(x0), a__sel(s(mark(z0)), mark(x3))), MARK(sel(s(z0), x3)))
   A__SEL(s(x0), cons(x1, sel(0, x3))) -> c4(A__SEL(mark(x0), a__sel(0, mark(x3))), MARK(sel(0, x3)))
   A__SEL(s(from(z0)), cons(x1, sel(x2, x3))) -> c4(A__SEL(a__from(mark(z0)), a__sel(mark(x2), mark(x3))), MARK(sel(x2, x3)))
   A__SEL(s(sel(z0, z1)), cons(x1, sel(x2, x3))) -> c4(A__SEL(a__sel(mark(z0), mark(z1)), a__sel(mark(x2), mark(x3))), MARK(sel(x2, x3)))
   A__SEL(s(s(z0)), cons(x1, sel(x2, x3))) -> c4(A__SEL(s(mark(z0)), a__sel(mark(x2), mark(x3))), MARK(sel(x2, x3)))
   A__SEL(s(0), cons(x1, sel(x2, x3))) -> c4(A__SEL(0, a__sel(mark(x2), mark(x3))), MARK(sel(x2, x3)))
   A__SEL(s(x0), cons(x1, sel(x2, x3))) -> c4(MARK(sel(x2, x3)))
   A__SEL(s(cons(z0, z1)), cons(x1, sel(x2, x3))) -> c4(MARK(sel(x2, x3)))
   A__SEL(s(x0), cons(x1, cons(from(z0), x3))) -> c4(A__SEL(mark(x0), cons(a__from(mark(z0)), x3)), MARK(cons(from(z0), x3)))
   A__SEL(s(x0), cons(x1, cons(sel(z0, z1), x3))) -> c4(A__SEL(mark(x0), cons(a__sel(mark(z0), mark(z1)), x3)), MARK(cons(sel(z0, z1), x3)))
   A__SEL(s(x0), cons(x1, cons(cons(z0, z1), x3))) -> c4(A__SEL(mark(x0), cons(cons(mark(z0), z1), x3)), MARK(cons(cons(z0, z1), x3)))
   A__SEL(s(x0), cons(x1, cons(s(z0), x3))) -> c4(A__SEL(mark(x0), cons(s(mark(z0)), x3)), MARK(cons(s(z0), x3)))
   A__SEL(s(x0), cons(x1, cons(0, x3))) -> c4(A__SEL(mark(x0), cons(0, x3)), MARK(cons(0, x3)))
   A__SEL(s(from(z0)), cons(x1, cons(x2, x3))) -> c4(A__SEL(a__from(mark(z0)), cons(mark(x2), x3)), MARK(cons(x2, x3)))
   A__SEL(s(sel(z0, z1)), cons(x1, cons(x2, x3))) -> c4(A__SEL(a__sel(mark(z0), mark(z1)), cons(mark(x2), x3)), MARK(cons(x2, x3)))
   A__SEL(s(s(z0)), cons(x1, cons(x2, x3))) -> c4(A__SEL(s(mark(z0)), cons(mark(x2), x3)), MARK(cons(x2, x3)))
   A__SEL(s(0), cons(x1, cons(x2, x3))) -> c4(A__SEL(0, cons(mark(x2), x3)), MARK(cons(x2, x3)))
   A__SEL(s(x0), cons(x1, cons(x2, x3))) -> c4(MARK(cons(x2, x3)))
   A__SEL(s(cons(z0, z1)), cons(x1, cons(x2, x3))) -> c4(MARK(cons(x2, x3)))
   A__SEL(s(from(from(z0))), cons(x1, x2)) -> c4(A__SEL(a__from(a__from(mark(z0))), mark(x2)), MARK(x2))
   A__SEL(s(from(sel(z0, z1))), cons(x1, x2)) -> c4(A__SEL(a__from(a__sel(mark(z0), mark(z1))), mark(x2)), MARK(x2))
   A__SEL(s(from(cons(z0, z1))), cons(x1, x2)) -> c4(A__SEL(a__from(cons(mark(z0), z1)), mark(x2)), MARK(x2))
   A__SEL(s(from(s(z0))), cons(x1, x2)) -> c4(A__SEL(a__from(s(mark(z0))), mark(x2)), MARK(x2))
   A__SEL(s(from(0)), cons(x1, x2)) -> c4(A__SEL(a__from(0), mark(x2)), MARK(x2))
   A__SEL(s(from(x0)), cons(x1, s(z0))) -> c4(MARK(s(z0)))
   A__SEL(s(from(x0)), cons(x1, x2)) -> c4(MARK(x2))
   A__SEL(s(sel(x0, from(z0))), cons(x2, x3)) -> c4(A__SEL(a__sel(mark(x0), a__from(mark(z0))), mark(x3)), MARK(x3))
   A__SEL(s(sel(x0, sel(z0, z1))), cons(x2, x3)) -> c4(A__SEL(a__sel(mark(x0), a__sel(mark(z0), mark(z1))), mark(x3)), MARK(x3))
   A__SEL(s(sel(x0, cons(z0, z1))), cons(x2, x3)) -> c4(A__SEL(a__sel(mark(x0), cons(mark(z0), z1)), mark(x3)), MARK(x3))
   A__SEL(s(sel(x0, s(z0))), cons(x2, x3)) -> c4(A__SEL(a__sel(mark(x0), s(mark(z0))), mark(x3)), MARK(x3))
   A__SEL(s(sel(x0, 0)), cons(x2, x3)) -> c4(A__SEL(a__sel(mark(x0), 0), mark(x3)), MARK(x3))
   A__SEL(s(sel(from(z0), x1)), cons(x2, x3)) -> c4(A__SEL(a__sel(a__from(mark(z0)), mark(x1)), mark(x3)), MARK(x3))
   A__SEL(s(sel(sel(z0, z1), x1)), cons(x2, x3)) -> c4(A__SEL(a__sel(a__sel(mark(z0), mark(z1)), mark(x1)), mark(x3)), MARK(x3))
   A__SEL(s(sel(cons(z0, z1), x1)), cons(x2, x3)) -> c4(A__SEL(a__sel(cons(mark(z0), z1), mark(x1)), mark(x3)), MARK(x3))
   A__SEL(s(sel(s(z0), x1)), cons(x2, x3)) -> c4(A__SEL(a__sel(s(mark(z0)), mark(x1)), mark(x3)), MARK(x3))
   A__SEL(s(sel(0, x1)), cons(x2, x3)) -> c4(A__SEL(a__sel(0, mark(x1)), mark(x3)), MARK(x3))
   A__SEL(s(sel(x0, x1)), cons(x2, s(z0))) -> c4(MARK(s(z0)))
   A__SEL(s(sel(x0, x1)), cons(x2, x3)) -> c4(MARK(x3))
   A__SEL(s(s(from(z0))), cons(x1, x2)) -> c4(A__SEL(s(a__from(mark(z0))), mark(x2)), MARK(x2))
   A__SEL(s(s(sel(z0, z1))), cons(x1, x2)) -> c4(A__SEL(s(a__sel(mark(z0), mark(z1))), mark(x2)), MARK(x2))
   A__SEL(s(s(cons(z0, z1))), cons(x1, x2)) -> c4(A__SEL(s(cons(mark(z0), z1)), mark(x2)), MARK(x2))
   A__SEL(s(s(s(z0))), cons(x1, x2)) -> c4(A__SEL(s(s(mark(z0))), mark(x2)), MARK(x2))
   A__SEL(s(s(0)), cons(x1, x2)) -> c4(A__SEL(s(0), mark(x2)), MARK(x2))
   A__SEL(s(s(x0)), cons(x1, s(z0))) -> c4(MARK(s(z0)))
   A__SEL(s(0), cons(x0, s(z0))) -> c4(MARK(s(z0)))
   MARK(sel(x0, from(x1))) -> c7(A__SEL(mark(x0), cons(mark(mark(x1)), from(s(mark(x1))))), MARK(x0))
   MARK(sel(x0, from(from(z0)))) -> c7(A__SEL(mark(x0), a__from(a__from(mark(z0)))), MARK(x0))
   MARK(sel(x0, from(sel(z0, z1)))) -> c7(A__SEL(mark(x0), a__from(a__sel(mark(z0), mark(z1)))), MARK(x0))
   MARK(sel(x0, from(cons(z0, z1)))) -> c7(A__SEL(mark(x0), a__from(cons(mark(z0), z1))), MARK(x0))
   MARK(sel(x0, from(s(z0)))) -> c7(A__SEL(mark(x0), a__from(s(mark(z0)))), MARK(x0))
   MARK(sel(x0, from(0))) -> c7(A__SEL(mark(x0), a__from(0)), MARK(x0))
   MARK(sel(from(z0), from(x1))) -> c7(A__SEL(a__from(mark(z0)), a__from(mark(x1))), MARK(from(z0)))
   MARK(sel(sel(z0, z1), from(x1))) -> c7(A__SEL(a__sel(mark(z0), mark(z1)), a__from(mark(x1))), MARK(sel(z0, z1)))
   MARK(sel(s(z0), from(x1))) -> c7(A__SEL(s(mark(z0)), a__from(mark(x1))), MARK(s(z0)))
   MARK(sel(x0, from(x1))) -> c7(MARK(x0))
   MARK(sel(cons(z0, z1), from(x1))) -> c7(MARK(cons(z0, z1)))
   MARK(sel(0, from(x1))) -> c7(A__SEL(0, a__from(mark(x1))))
   MARK(sel(x0, sel(x1, from(z0)))) -> c7(A__SEL(mark(x0), a__sel(mark(x1), a__from(mark(z0)))), MARK(x0))
   MARK(sel(x0, sel(x1, sel(z0, z1)))) -> c7(A__SEL(mark(x0), a__sel(mark(x1), a__sel(mark(z0), mark(z1)))), MARK(x0))
   MARK(sel(x0, sel(x1, cons(z0, z1)))) -> c7(A__SEL(mark(x0), a__sel(mark(x1), cons(mark(z0), z1))), MARK(x0))
   MARK(sel(x0, sel(x1, s(z0)))) -> c7(A__SEL(mark(x0), a__sel(mark(x1), s(mark(z0)))), MARK(x0))
   MARK(sel(x0, sel(x1, 0))) -> c7(A__SEL(mark(x0), a__sel(mark(x1), 0)), MARK(x0))
   MARK(sel(x0, sel(from(z0), x2))) -> c7(A__SEL(mark(x0), a__sel(a__from(mark(z0)), mark(x2))), MARK(x0))
   MARK(sel(x0, sel(sel(z0, z1), x2))) -> c7(A__SEL(mark(x0), a__sel(a__sel(mark(z0), mark(z1)), mark(x2))), MARK(x0))
   MARK(sel(x0, sel(cons(z0, z1), x2))) -> c7(A__SEL(mark(x0), a__sel(cons(mark(z0), z1), mark(x2))), MARK(x0))
   MARK(sel(x0, sel(s(z0), x2))) -> c7(A__SEL(mark(x0), a__sel(s(mark(z0)), mark(x2))), MARK(x0))
   MARK(sel(x0, sel(0, x2))) -> c7(A__SEL(mark(x0), a__sel(0, mark(x2))), MARK(x0))
   MARK(sel(from(z0), sel(x1, x2))) -> c7(A__SEL(a__from(mark(z0)), a__sel(mark(x1), mark(x2))), MARK(from(z0)))
   MARK(sel(sel(z0, z1), sel(x1, x2))) -> c7(A__SEL(a__sel(mark(z0), mark(z1)), a__sel(mark(x1), mark(x2))), MARK(sel(z0, z1)))
   MARK(sel(s(z0), sel(x1, x2))) -> c7(A__SEL(s(mark(z0)), a__sel(mark(x1), mark(x2))), MARK(s(z0)))
   MARK(sel(x0, sel(x1, x2))) -> c7(MARK(x0))
   MARK(sel(cons(z0, z1), sel(x1, x2))) -> c7(MARK(cons(z0, z1)))
   MARK(sel(0, sel(x1, x2))) -> c7(A__SEL(0, a__sel(mark(x1), mark(x2))))
   MARK(sel(x0, cons(from(z0), x2))) -> c7(A__SEL(mark(x0), cons(a__from(mark(z0)), x2)), MARK(x0))
   MARK(sel(x0, cons(sel(z0, z1), x2))) -> c7(A__SEL(mark(x0), cons(a__sel(mark(z0), mark(z1)), x2)), MARK(x0))
   MARK(sel(x0, cons(cons(z0, z1), x2))) -> c7(A__SEL(mark(x0), cons(cons(mark(z0), z1), x2)), MARK(x0))
   MARK(sel(x0, cons(s(z0), x2))) -> c7(A__SEL(mark(x0), cons(s(mark(z0)), x2)), MARK(x0))
   MARK(sel(x0, cons(0, x2))) -> c7(A__SEL(mark(x0), cons(0, x2)), MARK(x0))
   MARK(sel(from(z0), cons(x1, x2))) -> c7(A__SEL(a__from(mark(z0)), cons(mark(x1), x2)), MARK(from(z0)))
   MARK(sel(sel(z0, z1), cons(x1, x2))) -> c7(A__SEL(a__sel(mark(z0), mark(z1)), cons(mark(x1), x2)), MARK(sel(z0, z1)))
   MARK(sel(s(z0), cons(x1, x2))) -> c7(A__SEL(s(mark(z0)), cons(mark(x1), x2)), MARK(s(z0)))
   MARK(sel(cons(z0, z1), cons(x1, x2))) -> c7(MARK(cons(z0, z1)))
   MARK(sel(0, cons(x1, x2))) -> c7(A__SEL(0, cons(mark(x1), x2)))
   MARK(sel(from(from(z0)), x1)) -> c7(A__SEL(a__from(a__from(mark(z0))), mark(x1)), MARK(from(from(z0))))
   MARK(sel(from(sel(z0, z1)), x1)) -> c7(A__SEL(a__from(a__sel(mark(z0), mark(z1))), mark(x1)), MARK(from(sel(z0, z1))))
   MARK(sel(from(cons(z0, z1)), x1)) -> c7(A__SEL(a__from(cons(mark(z0), z1)), mark(x1)), MARK(from(cons(z0, z1))))
   MARK(sel(from(s(z0)), x1)) -> c7(A__SEL(a__from(s(mark(z0))), mark(x1)), MARK(from(s(z0))))
   MARK(sel(from(0), x1)) -> c7(A__SEL(a__from(0), mark(x1)), MARK(from(0)))
   MARK(sel(from(x0), x1)) -> c7(MARK(from(x0)))
   MARK(sel(from(x0), s(z0))) -> c7(MARK(from(x0)))
   MARK(sel(from(x0), 0)) -> c7(MARK(from(x0)))
   MARK(sel(sel(x0, from(z0)), x2)) -> c7(A__SEL(a__sel(mark(x0), a__from(mark(z0))), mark(x2)), MARK(sel(x0, from(z0))))
   MARK(sel(sel(x0, sel(z0, z1)), x2)) -> c7(A__SEL(a__sel(mark(x0), a__sel(mark(z0), mark(z1))), mark(x2)), MARK(sel(x0, sel(z0, z1))))
   MARK(sel(sel(x0, cons(z0, z1)), x2)) -> c7(A__SEL(a__sel(mark(x0), cons(mark(z0), z1)), mark(x2)), MARK(sel(x0, cons(z0, z1))))
   MARK(sel(sel(x0, s(z0)), x2)) -> c7(A__SEL(a__sel(mark(x0), s(mark(z0))), mark(x2)), MARK(sel(x0, s(z0))))
   MARK(sel(sel(x0, 0), x2)) -> c7(A__SEL(a__sel(mark(x0), 0), mark(x2)), MARK(sel(x0, 0)))
   MARK(sel(sel(from(z0), x1), x2)) -> c7(A__SEL(a__sel(a__from(mark(z0)), mark(x1)), mark(x2)), MARK(sel(from(z0), x1)))
   MARK(sel(sel(sel(z0, z1), x1), x2)) -> c7(A__SEL(a__sel(a__sel(mark(z0), mark(z1)), mark(x1)), mark(x2)), MARK(sel(sel(z0, z1), x1)))
   MARK(sel(sel(cons(z0, z1), x1), x2)) -> c7(A__SEL(a__sel(cons(mark(z0), z1), mark(x1)), mark(x2)), MARK(sel(cons(z0, z1), x1)))
   MARK(sel(sel(s(z0), x1), x2)) -> c7(A__SEL(a__sel(s(mark(z0)), mark(x1)), mark(x2)), MARK(sel(s(z0), x1)))
   MARK(sel(sel(0, x1), x2)) -> c7(A__SEL(a__sel(0, mark(x1)), mark(x2)), MARK(sel(0, x1)))
   MARK(sel(sel(x0, x1), s(z0))) -> c7(MARK(sel(x0, x1)))
   MARK(sel(sel(x0, x1), 0)) -> c7(MARK(sel(x0, x1)))
   MARK(sel(sel(x0, x1), x2)) -> c7(MARK(sel(x0, x1)))
   MARK(sel(s(from(z0)), x1)) -> c7(A__SEL(s(a__from(mark(z0))), mark(x1)), MARK(s(from(z0))))
   MARK(sel(s(sel(z0, z1)), x1)) -> c7(A__SEL(s(a__sel(mark(z0), mark(z1))), mark(x1)), MARK(s(sel(z0, z1))))
   MARK(sel(s(cons(z0, z1)), x1)) -> c7(A__SEL(s(cons(mark(z0), z1)), mark(x1)), MARK(s(cons(z0, z1))))
   MARK(sel(s(s(z0)), x1)) -> c7(A__SEL(s(s(mark(z0))), mark(x1)), MARK(s(s(z0))))
   MARK(sel(s(0), x1)) -> c7(A__SEL(s(0), mark(x1)), MARK(s(0)))
   MARK(sel(s(x0), x1)) -> c7(MARK(s(x0)))
   MARK(sel(s(x0), s(z0))) -> c7(MARK(s(x0)))
   MARK(sel(s(x0), 0)) -> c7(MARK(s(x0)))
   MARK(sel(x0, from(x1))) -> c8(A__SEL(mark(x0), cons(mark(mark(x1)), from(s(mark(x1))))), MARK(from(x1)))
   MARK(sel(x0, from(from(z0)))) -> c8(A__SEL(mark(x0), a__from(a__from(mark(z0)))), MARK(from(from(z0))))
   MARK(sel(x0, from(sel(z0, z1)))) -> c8(A__SEL(mark(x0), a__from(a__sel(mark(z0), mark(z1)))), MARK(from(sel(z0, z1))))
   MARK(sel(x0, from(cons(z0, z1)))) -> c8(A__SEL(mark(x0), a__from(cons(mark(z0), z1))), MARK(from(cons(z0, z1))))
   MARK(sel(x0, from(s(z0)))) -> c8(A__SEL(mark(x0), a__from(s(mark(z0)))), MARK(from(s(z0))))
   MARK(sel(x0, from(0))) -> c8(A__SEL(mark(x0), a__from(0)), MARK(from(0)))
   MARK(sel(from(z0), from(x1))) -> c8(A__SEL(a__from(mark(z0)), a__from(mark(x1))), MARK(from(x1)))
   MARK(sel(sel(z0, z1), from(x1))) -> c8(A__SEL(a__sel(mark(z0), mark(z1)), a__from(mark(x1))), MARK(from(x1)))
   MARK(sel(s(z0), from(x1))) -> c8(A__SEL(s(mark(z0)), a__from(mark(x1))), MARK(from(x1)))
   MARK(sel(0, from(x1))) -> c8(A__SEL(0, a__from(mark(x1))), MARK(from(x1)))
   MARK(sel(x0, from(x1))) -> c8(MARK(from(x1)))
   MARK(sel(cons(z0, z1), from(x1))) -> c8(MARK(from(x1)))
   MARK(sel(x0, sel(x1, from(z0)))) -> c8(A__SEL(mark(x0), a__sel(mark(x1), a__from(mark(z0)))), MARK(sel(x1, from(z0))))
   MARK(sel(x0, sel(x1, sel(z0, z1)))) -> c8(A__SEL(mark(x0), a__sel(mark(x1), a__sel(mark(z0), mark(z1)))), MARK(sel(x1, sel(z0, z1))))
   MARK(sel(x0, sel(x1, cons(z0, z1)))) -> c8(A__SEL(mark(x0), a__sel(mark(x1), cons(mark(z0), z1))), MARK(sel(x1, cons(z0, z1))))
   MARK(sel(x0, sel(x1, s(z0)))) -> c8(A__SEL(mark(x0), a__sel(mark(x1), s(mark(z0)))), MARK(sel(x1, s(z0))))
   MARK(sel(x0, sel(x1, 0))) -> c8(A__SEL(mark(x0), a__sel(mark(x1), 0)), MARK(sel(x1, 0)))
   MARK(sel(x0, sel(from(z0), x2))) -> c8(A__SEL(mark(x0), a__sel(a__from(mark(z0)), mark(x2))), MARK(sel(from(z0), x2)))
   MARK(sel(x0, sel(sel(z0, z1), x2))) -> c8(A__SEL(mark(x0), a__sel(a__sel(mark(z0), mark(z1)), mark(x2))), MARK(sel(sel(z0, z1), x2)))
   MARK(sel(x0, sel(cons(z0, z1), x2))) -> c8(A__SEL(mark(x0), a__sel(cons(mark(z0), z1), mark(x2))), MARK(sel(cons(z0, z1), x2)))
   MARK(sel(x0, sel(s(z0), x2))) -> c8(A__SEL(mark(x0), a__sel(s(mark(z0)), mark(x2))), MARK(sel(s(z0), x2)))
   MARK(sel(x0, sel(0, x2))) -> c8(A__SEL(mark(x0), a__sel(0, mark(x2))), MARK(sel(0, x2)))
   MARK(sel(from(z0), sel(x1, x2))) -> c8(A__SEL(a__from(mark(z0)), a__sel(mark(x1), mark(x2))), MARK(sel(x1, x2)))
   MARK(sel(sel(z0, z1), sel(x1, x2))) -> c8(A__SEL(a__sel(mark(z0), mark(z1)), a__sel(mark(x1), mark(x2))), MARK(sel(x1, x2)))
   MARK(sel(s(z0), sel(x1, x2))) -> c8(A__SEL(s(mark(z0)), a__sel(mark(x1), mark(x2))), MARK(sel(x1, x2)))
   MARK(sel(0, sel(x1, x2))) -> c8(A__SEL(0, a__sel(mark(x1), mark(x2))), MARK(sel(x1, x2)))
   MARK(sel(x0, sel(x1, x2))) -> c8(MARK(sel(x1, x2)))
   MARK(sel(cons(z0, z1), sel(x1, x2))) -> c8(MARK(sel(x1, x2)))
   MARK(sel(x0, cons(from(z0), x2))) -> c8(A__SEL(mark(x0), cons(a__from(mark(z0)), x2)), MARK(cons(from(z0), x2)))
   MARK(sel(x0, cons(sel(z0, z1), x2))) -> c8(A__SEL(mark(x0), cons(a__sel(mark(z0), mark(z1)), x2)), MARK(cons(sel(z0, z1), x2)))
   MARK(sel(x0, cons(cons(z0, z1), x2))) -> c8(A__SEL(mark(x0), cons(cons(mark(z0), z1), x2)), MARK(cons(cons(z0, z1), x2)))
   MARK(sel(x0, cons(s(z0), x2))) -> c8(A__SEL(mark(x0), cons(s(mark(z0)), x2)), MARK(cons(s(z0), x2)))
   MARK(sel(x0, cons(0, x2))) -> c8(A__SEL(mark(x0), cons(0, x2)), MARK(cons(0, x2)))
   MARK(sel(from(z0), cons(x1, x2))) -> c8(A__SEL(a__from(mark(z0)), cons(mark(x1), x2)), MARK(cons(x1, x2)))
   MARK(sel(sel(z0, z1), cons(x1, x2))) -> c8(A__SEL(a__sel(mark(z0), mark(z1)), cons(mark(x1), x2)), MARK(cons(x1, x2)))
   MARK(sel(s(z0), cons(x1, x2))) -> c8(A__SEL(s(mark(z0)), cons(mark(x1), x2)), MARK(cons(x1, x2)))
   MARK(sel(0, cons(x1, x2))) -> c8(A__SEL(0, cons(mark(x1), x2)), MARK(cons(x1, x2)))
   MARK(sel(x0, cons(x1, x2))) -> c8(MARK(cons(x1, x2)))
   MARK(sel(cons(z0, z1), cons(x1, x2))) -> c8(MARK(cons(x1, x2)))
   MARK(sel(from(from(z0)), x1)) -> c8(A__SEL(a__from(a__from(mark(z0))), mark(x1)), MARK(x1))
   MARK(sel(from(sel(z0, z1)), x1)) -> c8(A__SEL(a__from(a__sel(mark(z0), mark(z1))), mark(x1)), MARK(x1))
   MARK(sel(from(cons(z0, z1)), x1)) -> c8(A__SEL(a__from(cons(mark(z0), z1)), mark(x1)), MARK(x1))
   MARK(sel(from(s(z0)), x1)) -> c8(A__SEL(a__from(s(mark(z0))), mark(x1)), MARK(x1))
   MARK(sel(from(0), x1)) -> c8(A__SEL(a__from(0), mark(x1)), MARK(x1))
   MARK(sel(from(x0), s(z0))) -> c8(MARK(s(z0)))
   MARK(sel(from(x0), x1)) -> c8(MARK(x1))
   MARK(sel(sel(x0, from(z0)), x2)) -> c8(A__SEL(a__sel(mark(x0), a__from(mark(z0))), mark(x2)), MARK(x2))
   MARK(sel(sel(x0, sel(z0, z1)), x2)) -> c8(A__SEL(a__sel(mark(x0), a__sel(mark(z0), mark(z1))), mark(x2)), MARK(x2))
   MARK(sel(sel(x0, cons(z0, z1)), x2)) -> c8(A__SEL(a__sel(mark(x0), cons(mark(z0), z1)), mark(x2)), MARK(x2))
   MARK(sel(sel(x0, s(z0)), x2)) -> c8(A__SEL(a__sel(mark(x0), s(mark(z0))), mark(x2)), MARK(x2))
   MARK(sel(sel(x0, 0), x2)) -> c8(A__SEL(a__sel(mark(x0), 0), mark(x2)), MARK(x2))
   MARK(sel(sel(from(z0), x1), x2)) -> c8(A__SEL(a__sel(a__from(mark(z0)), mark(x1)), mark(x2)), MARK(x2))
   MARK(sel(sel(sel(z0, z1), x1), x2)) -> c8(A__SEL(a__sel(a__sel(mark(z0), mark(z1)), mark(x1)), mark(x2)), MARK(x2))
   MARK(sel(sel(cons(z0, z1), x1), x2)) -> c8(A__SEL(a__sel(cons(mark(z0), z1), mark(x1)), mark(x2)), MARK(x2))
   MARK(sel(sel(s(z0), x1), x2)) -> c8(A__SEL(a__sel(s(mark(z0)), mark(x1)), mark(x2)), MARK(x2))
   MARK(sel(sel(0, x1), x2)) -> c8(A__SEL(a__sel(0, mark(x1)), mark(x2)), MARK(x2))
   MARK(sel(sel(x0, x1), s(z0))) -> c8(MARK(s(z0)))
   MARK(sel(sel(x0, x1), x2)) -> c8(MARK(x2))
S tuples:
   A__FROM(z0) -> c(MARK(z0))
   A__SEL(0, cons(z0, z1)) -> c2(MARK(z0))
   MARK(from(z0)) -> c6(A__FROM(mark(z0)), MARK(z0))
   MARK(cons(z0, z1)) -> c9(MARK(z0))
   MARK(s(z0)) -> c10(MARK(z0))
   A__SEL(s(x0), cons(x1, s(z0))) -> c3(MARK(x0))
   A__SEL(s(x0), cons(x1, 0)) -> c3(MARK(x0))
   A__SEL(s(cons(z0, z1)), cons(x1, x2)) -> c3(MARK(cons(z0, z1)))
   A__SEL(s(x0), cons(x1, s(z0))) -> c4(MARK(s(z0)))
   A__SEL(s(cons(z0, z1)), cons(x1, x2)) -> c4(MARK(x2))
   MARK(sel(x0, s(z0))) -> c7(MARK(x0))
   MARK(sel(x0, 0)) -> c7(MARK(x0))
   MARK(sel(cons(z0, z1), x1)) -> c7(MARK(cons(z0, z1)))
   MARK(sel(s(z0), x1)) -> c8(A__SEL(s(mark(z0)), mark(x1)), MARK(x1))
   MARK(sel(0, x1)) -> c8(A__SEL(0, mark(x1)), MARK(x1))
   MARK(sel(x0, s(z0))) -> c8(MARK(s(z0)))
   MARK(sel(cons(z0, z1), x1)) -> c8(MARK(x1))
   A__SEL(s(x0), cons(x1, from(x2))) -> c3(A__SEL(mark(x0), cons(mark(mark(x2)), from(s(mark(x2))))), MARK(x0))
   A__SEL(s(x0), cons(x1, from(from(z0)))) -> c3(A__SEL(mark(x0), a__from(a__from(mark(z0)))), MARK(x0))
   A__SEL(s(x0), cons(x1, from(sel(z0, z1)))) -> c3(A__SEL(mark(x0), a__from(a__sel(mark(z0), mark(z1)))), MARK(x0))
   A__SEL(s(x0), cons(x1, from(cons(z0, z1)))) -> c3(A__SEL(mark(x0), a__from(cons(mark(z0), z1))), MARK(x0))
   A__SEL(s(x0), cons(x1, from(s(z0)))) -> c3(A__SEL(mark(x0), a__from(s(mark(z0)))), MARK(x0))
   A__SEL(s(x0), cons(x1, from(0))) -> c3(A__SEL(mark(x0), a__from(0)), MARK(x0))
   A__SEL(s(from(z0)), cons(x1, from(x2))) -> c3(A__SEL(a__from(mark(z0)), a__from(mark(x2))), MARK(from(z0)))
   A__SEL(s(sel(z0, z1)), cons(x1, from(x2))) -> c3(A__SEL(a__sel(mark(z0), mark(z1)), a__from(mark(x2))), MARK(sel(z0, z1)))
   A__SEL(s(s(z0)), cons(x1, from(x2))) -> c3(A__SEL(s(mark(z0)), a__from(mark(x2))), MARK(s(z0)))
   A__SEL(s(x0), cons(x1, from(x2))) -> c3(MARK(x0))
   A__SEL(s(cons(z0, z1)), cons(x1, from(x2))) -> c3(MARK(cons(z0, z1)))
   A__SEL(s(0), cons(x1, from(x2))) -> c3(A__SEL(0, a__from(mark(x2))))
   A__SEL(s(x0), cons(x1, sel(x2, from(z0)))) -> c3(A__SEL(mark(x0), a__sel(mark(x2), a__from(mark(z0)))), MARK(x0))
   A__SEL(s(x0), cons(x1, sel(x2, sel(z0, z1)))) -> c3(A__SEL(mark(x0), a__sel(mark(x2), a__sel(mark(z0), mark(z1)))), MARK(x0))
   A__SEL(s(x0), cons(x1, sel(x2, cons(z0, z1)))) -> c3(A__SEL(mark(x0), a__sel(mark(x2), cons(mark(z0), z1))), MARK(x0))
   A__SEL(s(x0), cons(x1, sel(x2, s(z0)))) -> c3(A__SEL(mark(x0), a__sel(mark(x2), s(mark(z0)))), MARK(x0))
   A__SEL(s(x0), cons(x1, sel(x2, 0))) -> c3(A__SEL(mark(x0), a__sel(mark(x2), 0)), MARK(x0))
   A__SEL(s(x0), cons(x1, sel(from(z0), x3))) -> c3(A__SEL(mark(x0), a__sel(a__from(mark(z0)), mark(x3))), MARK(x0))
   A__SEL(s(x0), cons(x1, sel(sel(z0, z1), x3))) -> c3(A__SEL(mark(x0), a__sel(a__sel(mark(z0), mark(z1)), mark(x3))), MARK(x0))
   A__SEL(s(x0), cons(x1, sel(cons(z0, z1), x3))) -> c3(A__SEL(mark(x0), a__sel(cons(mark(z0), z1), mark(x3))), MARK(x0))
   A__SEL(s(x0), cons(x1, sel(s(z0), x3))) -> c3(A__SEL(mark(x0), a__sel(s(mark(z0)), mark(x3))), MARK(x0))
   A__SEL(s(x0), cons(x1, sel(0, x3))) -> c3(A__SEL(mark(x0), a__sel(0, mark(x3))), MARK(x0))
   A__SEL(s(from(z0)), cons(x1, sel(x2, x3))) -> c3(A__SEL(a__from(mark(z0)), a__sel(mark(x2), mark(x3))), MARK(from(z0)))
   A__SEL(s(sel(z0, z1)), cons(x1, sel(x2, x3))) -> c3(A__SEL(a__sel(mark(z0), mark(z1)), a__sel(mark(x2), mark(x3))), MARK(sel(z0, z1)))
   A__SEL(s(s(z0)), cons(x1, sel(x2, x3))) -> c3(A__SEL(s(mark(z0)), a__sel(mark(x2), mark(x3))), MARK(s(z0)))
   A__SEL(s(x0), cons(x1, sel(x2, x3))) -> c3(MARK(x0))
   A__SEL(s(cons(z0, z1)), cons(x1, sel(x2, x3))) -> c3(MARK(cons(z0, z1)))
   A__SEL(s(0), cons(x1, sel(x2, x3))) -> c3(A__SEL(0, a__sel(mark(x2), mark(x3))))
   A__SEL(s(x0), cons(x1, cons(from(z0), x3))) -> c3(A__SEL(mark(x0), cons(a__from(mark(z0)), x3)), MARK(x0))
   A__SEL(s(x0), cons(x1, cons(sel(z0, z1), x3))) -> c3(A__SEL(mark(x0), cons(a__sel(mark(z0), mark(z1)), x3)), MARK(x0))
   A__SEL(s(x0), cons(x1, cons(cons(z0, z1), x3))) -> c3(A__SEL(mark(x0), cons(cons(mark(z0), z1), x3)), MARK(x0))
   A__SEL(s(x0), cons(x1, cons(s(z0), x3))) -> c3(A__SEL(mark(x0), cons(s(mark(z0)), x3)), MARK(x0))
   A__SEL(s(x0), cons(x1, cons(0, x3))) -> c3(A__SEL(mark(x0), cons(0, x3)), MARK(x0))
   A__SEL(s(from(z0)), cons(x1, cons(x2, x3))) -> c3(A__SEL(a__from(mark(z0)), cons(mark(x2), x3)), MARK(from(z0)))
   A__SEL(s(sel(z0, z1)), cons(x1, cons(x2, x3))) -> c3(A__SEL(a__sel(mark(z0), mark(z1)), cons(mark(x2), x3)), MARK(sel(z0, z1)))
   A__SEL(s(s(z0)), cons(x1, cons(x2, x3))) -> c3(A__SEL(s(mark(z0)), cons(mark(x2), x3)), MARK(s(z0)))
   A__SEL(s(cons(z0, z1)), cons(x1, cons(x2, x3))) -> c3(MARK(cons(z0, z1)))
   A__SEL(s(0), cons(x1, cons(x2, x3))) -> c3(A__SEL(0, cons(mark(x2), x3)))
   A__SEL(s(from(from(z0))), cons(x1, x2)) -> c3(A__SEL(a__from(a__from(mark(z0))), mark(x2)), MARK(from(from(z0))))
   A__SEL(s(from(sel(z0, z1))), cons(x1, x2)) -> c3(A__SEL(a__from(a__sel(mark(z0), mark(z1))), mark(x2)), MARK(from(sel(z0, z1))))
   A__SEL(s(from(cons(z0, z1))), cons(x1, x2)) -> c3(A__SEL(a__from(cons(mark(z0), z1)), mark(x2)), MARK(from(cons(z0, z1))))
   A__SEL(s(from(s(z0))), cons(x1, x2)) -> c3(A__SEL(a__from(s(mark(z0))), mark(x2)), MARK(from(s(z0))))
   A__SEL(s(from(0)), cons(x1, x2)) -> c3(A__SEL(a__from(0), mark(x2)), MARK(from(0)))
   A__SEL(s(from(x0)), cons(x1, x2)) -> c3(MARK(from(x0)))
   A__SEL(s(from(x0)), cons(x1, s(z0))) -> c3(MARK(from(x0)))
   A__SEL(s(from(x0)), cons(x1, 0)) -> c3(MARK(from(x0)))
   A__SEL(s(sel(x0, from(z0))), cons(x2, x3)) -> c3(A__SEL(a__sel(mark(x0), a__from(mark(z0))), mark(x3)), MARK(sel(x0, from(z0))))
   A__SEL(s(sel(x0, sel(z0, z1))), cons(x2, x3)) -> c3(A__SEL(a__sel(mark(x0), a__sel(mark(z0), mark(z1))), mark(x3)), MARK(sel(x0, sel(z0, z1))))
   A__SEL(s(sel(x0, cons(z0, z1))), cons(x2, x3)) -> c3(A__SEL(a__sel(mark(x0), cons(mark(z0), z1)), mark(x3)), MARK(sel(x0, cons(z0, z1))))
   A__SEL(s(sel(x0, s(z0))), cons(x2, x3)) -> c3(A__SEL(a__sel(mark(x0), s(mark(z0))), mark(x3)), MARK(sel(x0, s(z0))))
   A__SEL(s(sel(x0, 0)), cons(x2, x3)) -> c3(A__SEL(a__sel(mark(x0), 0), mark(x3)), MARK(sel(x0, 0)))
   A__SEL(s(sel(from(z0), x1)), cons(x2, x3)) -> c3(A__SEL(a__sel(a__from(mark(z0)), mark(x1)), mark(x3)), MARK(sel(from(z0), x1)))
   A__SEL(s(sel(sel(z0, z1), x1)), cons(x2, x3)) -> c3(A__SEL(a__sel(a__sel(mark(z0), mark(z1)), mark(x1)), mark(x3)), MARK(sel(sel(z0, z1), x1)))
   A__SEL(s(sel(cons(z0, z1), x1)), cons(x2, x3)) -> c3(A__SEL(a__sel(cons(mark(z0), z1), mark(x1)), mark(x3)), MARK(sel(cons(z0, z1), x1)))
   A__SEL(s(sel(s(z0), x1)), cons(x2, x3)) -> c3(A__SEL(a__sel(s(mark(z0)), mark(x1)), mark(x3)), MARK(sel(s(z0), x1)))
   A__SEL(s(sel(0, x1)), cons(x2, x3)) -> c3(A__SEL(a__sel(0, mark(x1)), mark(x3)), MARK(sel(0, x1)))
   A__SEL(s(sel(x0, x1)), cons(x2, s(z0))) -> c3(MARK(sel(x0, x1)))
   A__SEL(s(sel(x0, x1)), cons(x2, 0)) -> c3(MARK(sel(x0, x1)))
   A__SEL(s(sel(x0, x1)), cons(x2, x3)) -> c3(MARK(sel(x0, x1)))
   A__SEL(s(s(from(z0))), cons(x1, x2)) -> c3(A__SEL(s(a__from(mark(z0))), mark(x2)), MARK(s(from(z0))))
   A__SEL(s(s(sel(z0, z1))), cons(x1, x2)) -> c3(A__SEL(s(a__sel(mark(z0), mark(z1))), mark(x2)), MARK(s(sel(z0, z1))))
   A__SEL(s(s(cons(z0, z1))), cons(x1, x2)) -> c3(A__SEL(s(cons(mark(z0), z1)), mark(x2)), MARK(s(cons(z0, z1))))
   A__SEL(s(s(s(z0))), cons(x1, x2)) -> c3(A__SEL(s(s(mark(z0))), mark(x2)), MARK(s(s(z0))))
   A__SEL(s(s(0)), cons(x1, x2)) -> c3(A__SEL(s(0), mark(x2)), MARK(s(0)))
   A__SEL(s(s(x0)), cons(x1, x2)) -> c3(MARK(s(x0)))
   A__SEL(s(s(x0)), cons(x1, s(z0))) -> c3(MARK(s(x0)))
   A__SEL(s(s(x0)), cons(x1, 0)) -> c3(MARK(s(x0)))
   A__SEL(s(x0), cons(x1, from(x2))) -> c4(A__SEL(mark(x0), cons(mark(mark(x2)), from(s(mark(x2))))), MARK(from(x2)))
   A__SEL(s(x0), cons(x1, from(from(z0)))) -> c4(A__SEL(mark(x0), a__from(a__from(mark(z0)))), MARK(from(from(z0))))
   A__SEL(s(x0), cons(x1, from(sel(z0, z1)))) -> c4(A__SEL(mark(x0), a__from(a__sel(mark(z0), mark(z1)))), MARK(from(sel(z0, z1))))
   A__SEL(s(x0), cons(x1, from(cons(z0, z1)))) -> c4(A__SEL(mark(x0), a__from(cons(mark(z0), z1))), MARK(from(cons(z0, z1))))
   A__SEL(s(x0), cons(x1, from(s(z0)))) -> c4(A__SEL(mark(x0), a__from(s(mark(z0)))), MARK(from(s(z0))))
   A__SEL(s(x0), cons(x1, from(0))) -> c4(A__SEL(mark(x0), a__from(0)), MARK(from(0)))
   A__SEL(s(from(z0)), cons(x1, from(x2))) -> c4(A__SEL(a__from(mark(z0)), a__from(mark(x2))), MARK(from(x2)))
   A__SEL(s(sel(z0, z1)), cons(x1, from(x2))) -> c4(A__SEL(a__sel(mark(z0), mark(z1)), a__from(mark(x2))), MARK(from(x2)))
   A__SEL(s(s(z0)), cons(x1, from(x2))) -> c4(A__SEL(s(mark(z0)), a__from(mark(x2))), MARK(from(x2)))
   A__SEL(s(0), cons(x1, from(x2))) -> c4(A__SEL(0, a__from(mark(x2))), MARK(from(x2)))
   A__SEL(s(x0), cons(x1, from(x2))) -> c4(MARK(from(x2)))
   A__SEL(s(cons(z0, z1)), cons(x1, from(x2))) -> c4(MARK(from(x2)))
   A__SEL(s(x0), cons(x1, sel(x2, from(z0)))) -> c4(A__SEL(mark(x0), a__sel(mark(x2), a__from(mark(z0)))), MARK(sel(x2, from(z0))))
   A__SEL(s(x0), cons(x1, sel(x2, sel(z0, z1)))) -> c4(A__SEL(mark(x0), a__sel(mark(x2), a__sel(mark(z0), mark(z1)))), MARK(sel(x2, sel(z0, z1))))
   A__SEL(s(x0), cons(x1, sel(x2, cons(z0, z1)))) -> c4(A__SEL(mark(x0), a__sel(mark(x2), cons(mark(z0), z1))), MARK(sel(x2, cons(z0, z1))))
   A__SEL(s(x0), cons(x1, sel(x2, s(z0)))) -> c4(A__SEL(mark(x0), a__sel(mark(x2), s(mark(z0)))), MARK(sel(x2, s(z0))))
   A__SEL(s(x0), cons(x1, sel(x2, 0))) -> c4(A__SEL(mark(x0), a__sel(mark(x2), 0)), MARK(sel(x2, 0)))
   A__SEL(s(x0), cons(x1, sel(from(z0), x3))) -> c4(A__SEL(mark(x0), a__sel(a__from(mark(z0)), mark(x3))), MARK(sel(from(z0), x3)))
   A__SEL(s(x0), cons(x1, sel(sel(z0, z1), x3))) -> c4(A__SEL(mark(x0), a__sel(a__sel(mark(z0), mark(z1)), mark(x3))), MARK(sel(sel(z0, z1), x3)))
   A__SEL(s(x0), cons(x1, sel(cons(z0, z1), x3))) -> c4(A__SEL(mark(x0), a__sel(cons(mark(z0), z1), mark(x3))), MARK(sel(cons(z0, z1), x3)))
   A__SEL(s(x0), cons(x1, sel(s(z0), x3))) -> c4(A__SEL(mark(x0), a__sel(s(mark(z0)), mark(x3))), MARK(sel(s(z0), x3)))
   A__SEL(s(x0), cons(x1, sel(0, x3))) -> c4(A__SEL(mark(x0), a__sel(0, mark(x3))), MARK(sel(0, x3)))
   A__SEL(s(from(z0)), cons(x1, sel(x2, x3))) -> c4(A__SEL(a__from(mark(z0)), a__sel(mark(x2), mark(x3))), MARK(sel(x2, x3)))
   A__SEL(s(sel(z0, z1)), cons(x1, sel(x2, x3))) -> c4(A__SEL(a__sel(mark(z0), mark(z1)), a__sel(mark(x2), mark(x3))), MARK(sel(x2, x3)))
   A__SEL(s(s(z0)), cons(x1, sel(x2, x3))) -> c4(A__SEL(s(mark(z0)), a__sel(mark(x2), mark(x3))), MARK(sel(x2, x3)))
   A__SEL(s(0), cons(x1, sel(x2, x3))) -> c4(A__SEL(0, a__sel(mark(x2), mark(x3))), MARK(sel(x2, x3)))
   A__SEL(s(x0), cons(x1, sel(x2, x3))) -> c4(MARK(sel(x2, x3)))
   A__SEL(s(cons(z0, z1)), cons(x1, sel(x2, x3))) -> c4(MARK(sel(x2, x3)))
   A__SEL(s(x0), cons(x1, cons(from(z0), x3))) -> c4(A__SEL(mark(x0), cons(a__from(mark(z0)), x3)), MARK(cons(from(z0), x3)))
   A__SEL(s(x0), cons(x1, cons(sel(z0, z1), x3))) -> c4(A__SEL(mark(x0), cons(a__sel(mark(z0), mark(z1)), x3)), MARK(cons(sel(z0, z1), x3)))
   A__SEL(s(x0), cons(x1, cons(cons(z0, z1), x3))) -> c4(A__SEL(mark(x0), cons(cons(mark(z0), z1), x3)), MARK(cons(cons(z0, z1), x3)))
   A__SEL(s(x0), cons(x1, cons(s(z0), x3))) -> c4(A__SEL(mark(x0), cons(s(mark(z0)), x3)), MARK(cons(s(z0), x3)))
   A__SEL(s(x0), cons(x1, cons(0, x3))) -> c4(A__SEL(mark(x0), cons(0, x3)), MARK(cons(0, x3)))
   A__SEL(s(from(z0)), cons(x1, cons(x2, x3))) -> c4(A__SEL(a__from(mark(z0)), cons(mark(x2), x3)), MARK(cons(x2, x3)))
   A__SEL(s(sel(z0, z1)), cons(x1, cons(x2, x3))) -> c4(A__SEL(a__sel(mark(z0), mark(z1)), cons(mark(x2), x3)), MARK(cons(x2, x3)))
   A__SEL(s(s(z0)), cons(x1, cons(x2, x3))) -> c4(A__SEL(s(mark(z0)), cons(mark(x2), x3)), MARK(cons(x2, x3)))
   A__SEL(s(0), cons(x1, cons(x2, x3))) -> c4(A__SEL(0, cons(mark(x2), x3)), MARK(cons(x2, x3)))
   A__SEL(s(x0), cons(x1, cons(x2, x3))) -> c4(MARK(cons(x2, x3)))
   A__SEL(s(cons(z0, z1)), cons(x1, cons(x2, x3))) -> c4(MARK(cons(x2, x3)))
   A__SEL(s(from(from(z0))), cons(x1, x2)) -> c4(A__SEL(a__from(a__from(mark(z0))), mark(x2)), MARK(x2))
   A__SEL(s(from(sel(z0, z1))), cons(x1, x2)) -> c4(A__SEL(a__from(a__sel(mark(z0), mark(z1))), mark(x2)), MARK(x2))
   A__SEL(s(from(cons(z0, z1))), cons(x1, x2)) -> c4(A__SEL(a__from(cons(mark(z0), z1)), mark(x2)), MARK(x2))
   A__SEL(s(from(s(z0))), cons(x1, x2)) -> c4(A__SEL(a__from(s(mark(z0))), mark(x2)), MARK(x2))
   A__SEL(s(from(0)), cons(x1, x2)) -> c4(A__SEL(a__from(0), mark(x2)), MARK(x2))
   A__SEL(s(from(x0)), cons(x1, s(z0))) -> c4(MARK(s(z0)))
   A__SEL(s(from(x0)), cons(x1, x2)) -> c4(MARK(x2))
   A__SEL(s(sel(x0, from(z0))), cons(x2, x3)) -> c4(A__SEL(a__sel(mark(x0), a__from(mark(z0))), mark(x3)), MARK(x3))
   A__SEL(s(sel(x0, sel(z0, z1))), cons(x2, x3)) -> c4(A__SEL(a__sel(mark(x0), a__sel(mark(z0), mark(z1))), mark(x3)), MARK(x3))
   A__SEL(s(sel(x0, cons(z0, z1))), cons(x2, x3)) -> c4(A__SEL(a__sel(mark(x0), cons(mark(z0), z1)), mark(x3)), MARK(x3))
   A__SEL(s(sel(x0, s(z0))), cons(x2, x3)) -> c4(A__SEL(a__sel(mark(x0), s(mark(z0))), mark(x3)), MARK(x3))
   A__SEL(s(sel(x0, 0)), cons(x2, x3)) -> c4(A__SEL(a__sel(mark(x0), 0), mark(x3)), MARK(x3))
   A__SEL(s(sel(from(z0), x1)), cons(x2, x3)) -> c4(A__SEL(a__sel(a__from(mark(z0)), mark(x1)), mark(x3)), MARK(x3))
   A__SEL(s(sel(sel(z0, z1), x1)), cons(x2, x3)) -> c4(A__SEL(a__sel(a__sel(mark(z0), mark(z1)), mark(x1)), mark(x3)), MARK(x3))
   A__SEL(s(sel(cons(z0, z1), x1)), cons(x2, x3)) -> c4(A__SEL(a__sel(cons(mark(z0), z1), mark(x1)), mark(x3)), MARK(x3))
   A__SEL(s(sel(s(z0), x1)), cons(x2, x3)) -> c4(A__SEL(a__sel(s(mark(z0)), mark(x1)), mark(x3)), MARK(x3))
   A__SEL(s(sel(0, x1)), cons(x2, x3)) -> c4(A__SEL(a__sel(0, mark(x1)), mark(x3)), MARK(x3))
   A__SEL(s(sel(x0, x1)), cons(x2, s(z0))) -> c4(MARK(s(z0)))
   A__SEL(s(sel(x0, x1)), cons(x2, x3)) -> c4(MARK(x3))
   A__SEL(s(s(from(z0))), cons(x1, x2)) -> c4(A__SEL(s(a__from(mark(z0))), mark(x2)), MARK(x2))
   A__SEL(s(s(sel(z0, z1))), cons(x1, x2)) -> c4(A__SEL(s(a__sel(mark(z0), mark(z1))), mark(x2)), MARK(x2))
   A__SEL(s(s(cons(z0, z1))), cons(x1, x2)) -> c4(A__SEL(s(cons(mark(z0), z1)), mark(x2)), MARK(x2))
   A__SEL(s(s(s(z0))), cons(x1, x2)) -> c4(A__SEL(s(s(mark(z0))), mark(x2)), MARK(x2))
   A__SEL(s(s(0)), cons(x1, x2)) -> c4(A__SEL(s(0), mark(x2)), MARK(x2))
   A__SEL(s(s(x0)), cons(x1, s(z0))) -> c4(MARK(s(z0)))
   A__SEL(s(0), cons(x0, s(z0))) -> c4(MARK(s(z0)))
   MARK(sel(x0, from(x1))) -> c7(A__SEL(mark(x0), cons(mark(mark(x1)), from(s(mark(x1))))), MARK(x0))
   MARK(sel(x0, from(from(z0)))) -> c7(A__SEL(mark(x0), a__from(a__from(mark(z0)))), MARK(x0))
   MARK(sel(x0, from(sel(z0, z1)))) -> c7(A__SEL(mark(x0), a__from(a__sel(mark(z0), mark(z1)))), MARK(x0))
   MARK(sel(x0, from(cons(z0, z1)))) -> c7(A__SEL(mark(x0), a__from(cons(mark(z0), z1))), MARK(x0))
   MARK(sel(x0, from(s(z0)))) -> c7(A__SEL(mark(x0), a__from(s(mark(z0)))), MARK(x0))
   MARK(sel(x0, from(0))) -> c7(A__SEL(mark(x0), a__from(0)), MARK(x0))
   MARK(sel(from(z0), from(x1))) -> c7(A__SEL(a__from(mark(z0)), a__from(mark(x1))), MARK(from(z0)))
   MARK(sel(sel(z0, z1), from(x1))) -> c7(A__SEL(a__sel(mark(z0), mark(z1)), a__from(mark(x1))), MARK(sel(z0, z1)))
   MARK(sel(s(z0), from(x1))) -> c7(A__SEL(s(mark(z0)), a__from(mark(x1))), MARK(s(z0)))
   MARK(sel(x0, from(x1))) -> c7(MARK(x0))
   MARK(sel(cons(z0, z1), from(x1))) -> c7(MARK(cons(z0, z1)))
   MARK(sel(0, from(x1))) -> c7(A__SEL(0, a__from(mark(x1))))
   MARK(sel(x0, sel(x1, from(z0)))) -> c7(A__SEL(mark(x0), a__sel(mark(x1), a__from(mark(z0)))), MARK(x0))
   MARK(sel(x0, sel(x1, sel(z0, z1)))) -> c7(A__SEL(mark(x0), a__sel(mark(x1), a__sel(mark(z0), mark(z1)))), MARK(x0))
   MARK(sel(x0, sel(x1, cons(z0, z1)))) -> c7(A__SEL(mark(x0), a__sel(mark(x1), cons(mark(z0), z1))), MARK(x0))
   MARK(sel(x0, sel(x1, s(z0)))) -> c7(A__SEL(mark(x0), a__sel(mark(x1), s(mark(z0)))), MARK(x0))
   MARK(sel(x0, sel(x1, 0))) -> c7(A__SEL(mark(x0), a__sel(mark(x1), 0)), MARK(x0))
   MARK(sel(x0, sel(from(z0), x2))) -> c7(A__SEL(mark(x0), a__sel(a__from(mark(z0)), mark(x2))), MARK(x0))
   MARK(sel(x0, sel(sel(z0, z1), x2))) -> c7(A__SEL(mark(x0), a__sel(a__sel(mark(z0), mark(z1)), mark(x2))), MARK(x0))
   MARK(sel(x0, sel(cons(z0, z1), x2))) -> c7(A__SEL(mark(x0), a__sel(cons(mark(z0), z1), mark(x2))), MARK(x0))
   MARK(sel(x0, sel(s(z0), x2))) -> c7(A__SEL(mark(x0), a__sel(s(mark(z0)), mark(x2))), MARK(x0))
   MARK(sel(x0, sel(0, x2))) -> c7(A__SEL(mark(x0), a__sel(0, mark(x2))), MARK(x0))
   MARK(sel(from(z0), sel(x1, x2))) -> c7(A__SEL(a__from(mark(z0)), a__sel(mark(x1), mark(x2))), MARK(from(z0)))
   MARK(sel(sel(z0, z1), sel(x1, x2))) -> c7(A__SEL(a__sel(mark(z0), mark(z1)), a__sel(mark(x1), mark(x2))), MARK(sel(z0, z1)))
   MARK(sel(s(z0), sel(x1, x2))) -> c7(A__SEL(s(mark(z0)), a__sel(mark(x1), mark(x2))), MARK(s(z0)))
   MARK(sel(x0, sel(x1, x2))) -> c7(MARK(x0))
   MARK(sel(cons(z0, z1), sel(x1, x2))) -> c7(MARK(cons(z0, z1)))
   MARK(sel(0, sel(x1, x2))) -> c7(A__SEL(0, a__sel(mark(x1), mark(x2))))
   MARK(sel(x0, cons(from(z0), x2))) -> c7(A__SEL(mark(x0), cons(a__from(mark(z0)), x2)), MARK(x0))
   MARK(sel(x0, cons(sel(z0, z1), x2))) -> c7(A__SEL(mark(x0), cons(a__sel(mark(z0), mark(z1)), x2)), MARK(x0))
   MARK(sel(x0, cons(cons(z0, z1), x2))) -> c7(A__SEL(mark(x0), cons(cons(mark(z0), z1), x2)), MARK(x0))
   MARK(sel(x0, cons(s(z0), x2))) -> c7(A__SEL(mark(x0), cons(s(mark(z0)), x2)), MARK(x0))
   MARK(sel(x0, cons(0, x2))) -> c7(A__SEL(mark(x0), cons(0, x2)), MARK(x0))
   MARK(sel(from(z0), cons(x1, x2))) -> c7(A__SEL(a__from(mark(z0)), cons(mark(x1), x2)), MARK(from(z0)))
   MARK(sel(sel(z0, z1), cons(x1, x2))) -> c7(A__SEL(a__sel(mark(z0), mark(z1)), cons(mark(x1), x2)), MARK(sel(z0, z1)))
   MARK(sel(s(z0), cons(x1, x2))) -> c7(A__SEL(s(mark(z0)), cons(mark(x1), x2)), MARK(s(z0)))
   MARK(sel(cons(z0, z1), cons(x1, x2))) -> c7(MARK(cons(z0, z1)))
   MARK(sel(0, cons(x1, x2))) -> c7(A__SEL(0, cons(mark(x1), x2)))
   MARK(sel(from(from(z0)), x1)) -> c7(A__SEL(a__from(a__from(mark(z0))), mark(x1)), MARK(from(from(z0))))
   MARK(sel(from(sel(z0, z1)), x1)) -> c7(A__SEL(a__from(a__sel(mark(z0), mark(z1))), mark(x1)), MARK(from(sel(z0, z1))))
   MARK(sel(from(cons(z0, z1)), x1)) -> c7(A__SEL(a__from(cons(mark(z0), z1)), mark(x1)), MARK(from(cons(z0, z1))))
   MARK(sel(from(s(z0)), x1)) -> c7(A__SEL(a__from(s(mark(z0))), mark(x1)), MARK(from(s(z0))))
   MARK(sel(from(0), x1)) -> c7(A__SEL(a__from(0), mark(x1)), MARK(from(0)))
   MARK(sel(from(x0), x1)) -> c7(MARK(from(x0)))
   MARK(sel(from(x0), s(z0))) -> c7(MARK(from(x0)))
   MARK(sel(from(x0), 0)) -> c7(MARK(from(x0)))
   MARK(sel(sel(x0, from(z0)), x2)) -> c7(A__SEL(a__sel(mark(x0), a__from(mark(z0))), mark(x2)), MARK(sel(x0, from(z0))))
   MARK(sel(sel(x0, sel(z0, z1)), x2)) -> c7(A__SEL(a__sel(mark(x0), a__sel(mark(z0), mark(z1))), mark(x2)), MARK(sel(x0, sel(z0, z1))))
   MARK(sel(sel(x0, cons(z0, z1)), x2)) -> c7(A__SEL(a__sel(mark(x0), cons(mark(z0), z1)), mark(x2)), MARK(sel(x0, cons(z0, z1))))
   MARK(sel(sel(x0, s(z0)), x2)) -> c7(A__SEL(a__sel(mark(x0), s(mark(z0))), mark(x2)), MARK(sel(x0, s(z0))))
   MARK(sel(sel(x0, 0), x2)) -> c7(A__SEL(a__sel(mark(x0), 0), mark(x2)), MARK(sel(x0, 0)))
   MARK(sel(sel(from(z0), x1), x2)) -> c7(A__SEL(a__sel(a__from(mark(z0)), mark(x1)), mark(x2)), MARK(sel(from(z0), x1)))
   MARK(sel(sel(sel(z0, z1), x1), x2)) -> c7(A__SEL(a__sel(a__sel(mark(z0), mark(z1)), mark(x1)), mark(x2)), MARK(sel(sel(z0, z1), x1)))
   MARK(sel(sel(cons(z0, z1), x1), x2)) -> c7(A__SEL(a__sel(cons(mark(z0), z1), mark(x1)), mark(x2)), MARK(sel(cons(z0, z1), x1)))
   MARK(sel(sel(s(z0), x1), x2)) -> c7(A__SEL(a__sel(s(mark(z0)), mark(x1)), mark(x2)), MARK(sel(s(z0), x1)))
   MARK(sel(sel(0, x1), x2)) -> c7(A__SEL(a__sel(0, mark(x1)), mark(x2)), MARK(sel(0, x1)))
   MARK(sel(sel(x0, x1), s(z0))) -> c7(MARK(sel(x0, x1)))
   MARK(sel(sel(x0, x1), 0)) -> c7(MARK(sel(x0, x1)))
   MARK(sel(sel(x0, x1), x2)) -> c7(MARK(sel(x0, x1)))
   MARK(sel(s(from(z0)), x1)) -> c7(A__SEL(s(a__from(mark(z0))), mark(x1)), MARK(s(from(z0))))
   MARK(sel(s(sel(z0, z1)), x1)) -> c7(A__SEL(s(a__sel(mark(z0), mark(z1))), mark(x1)), MARK(s(sel(z0, z1))))
   MARK(sel(s(cons(z0, z1)), x1)) -> c7(A__SEL(s(cons(mark(z0), z1)), mark(x1)), MARK(s(cons(z0, z1))))
   MARK(sel(s(s(z0)), x1)) -> c7(A__SEL(s(s(mark(z0))), mark(x1)), MARK(s(s(z0))))
   MARK(sel(s(0), x1)) -> c7(A__SEL(s(0), mark(x1)), MARK(s(0)))
   MARK(sel(s(x0), x1)) -> c7(MARK(s(x0)))
   MARK(sel(s(x0), s(z0))) -> c7(MARK(s(x0)))
   MARK(sel(s(x0), 0)) -> c7(MARK(s(x0)))
   MARK(sel(x0, from(x1))) -> c8(A__SEL(mark(x0), cons(mark(mark(x1)), from(s(mark(x1))))), MARK(from(x1)))
   MARK(sel(x0, from(from(z0)))) -> c8(A__SEL(mark(x0), a__from(a__from(mark(z0)))), MARK(from(from(z0))))
   MARK(sel(x0, from(sel(z0, z1)))) -> c8(A__SEL(mark(x0), a__from(a__sel(mark(z0), mark(z1)))), MARK(from(sel(z0, z1))))
   MARK(sel(x0, from(cons(z0, z1)))) -> c8(A__SEL(mark(x0), a__from(cons(mark(z0), z1))), MARK(from(cons(z0, z1))))
   MARK(sel(x0, from(s(z0)))) -> c8(A__SEL(mark(x0), a__from(s(mark(z0)))), MARK(from(s(z0))))
   MARK(sel(x0, from(0))) -> c8(A__SEL(mark(x0), a__from(0)), MARK(from(0)))
   MARK(sel(from(z0), from(x1))) -> c8(A__SEL(a__from(mark(z0)), a__from(mark(x1))), MARK(from(x1)))
   MARK(sel(sel(z0, z1), from(x1))) -> c8(A__SEL(a__sel(mark(z0), mark(z1)), a__from(mark(x1))), MARK(from(x1)))
   MARK(sel(s(z0), from(x1))) -> c8(A__SEL(s(mark(z0)), a__from(mark(x1))), MARK(from(x1)))
   MARK(sel(0, from(x1))) -> c8(A__SEL(0, a__from(mark(x1))), MARK(from(x1)))
   MARK(sel(x0, from(x1))) -> c8(MARK(from(x1)))
   MARK(sel(cons(z0, z1), from(x1))) -> c8(MARK(from(x1)))
   MARK(sel(x0, sel(x1, from(z0)))) -> c8(A__SEL(mark(x0), a__sel(mark(x1), a__from(mark(z0)))), MARK(sel(x1, from(z0))))
   MARK(sel(x0, sel(x1, sel(z0, z1)))) -> c8(A__SEL(mark(x0), a__sel(mark(x1), a__sel(mark(z0), mark(z1)))), MARK(sel(x1, sel(z0, z1))))
   MARK(sel(x0, sel(x1, cons(z0, z1)))) -> c8(A__SEL(mark(x0), a__sel(mark(x1), cons(mark(z0), z1))), MARK(sel(x1, cons(z0, z1))))
   MARK(sel(x0, sel(x1, s(z0)))) -> c8(A__SEL(mark(x0), a__sel(mark(x1), s(mark(z0)))), MARK(sel(x1, s(z0))))
   MARK(sel(x0, sel(x1, 0))) -> c8(A__SEL(mark(x0), a__sel(mark(x1), 0)), MARK(sel(x1, 0)))
   MARK(sel(x0, sel(from(z0), x2))) -> c8(A__SEL(mark(x0), a__sel(a__from(mark(z0)), mark(x2))), MARK(sel(from(z0), x2)))
   MARK(sel(x0, sel(sel(z0, z1), x2))) -> c8(A__SEL(mark(x0), a__sel(a__sel(mark(z0), mark(z1)), mark(x2))), MARK(sel(sel(z0, z1), x2)))
   MARK(sel(x0, sel(cons(z0, z1), x2))) -> c8(A__SEL(mark(x0), a__sel(cons(mark(z0), z1), mark(x2))), MARK(sel(cons(z0, z1), x2)))
   MARK(sel(x0, sel(s(z0), x2))) -> c8(A__SEL(mark(x0), a__sel(s(mark(z0)), mark(x2))), MARK(sel(s(z0), x2)))
   MARK(sel(x0, sel(0, x2))) -> c8(A__SEL(mark(x0), a__sel(0, mark(x2))), MARK(sel(0, x2)))
   MARK(sel(from(z0), sel(x1, x2))) -> c8(A__SEL(a__from(mark(z0)), a__sel(mark(x1), mark(x2))), MARK(sel(x1, x2)))
   MARK(sel(sel(z0, z1), sel(x1, x2))) -> c8(A__SEL(a__sel(mark(z0), mark(z1)), a__sel(mark(x1), mark(x2))), MARK(sel(x1, x2)))
   MARK(sel(s(z0), sel(x1, x2))) -> c8(A__SEL(s(mark(z0)), a__sel(mark(x1), mark(x2))), MARK(sel(x1, x2)))
   MARK(sel(0, sel(x1, x2))) -> c8(A__SEL(0, a__sel(mark(x1), mark(x2))), MARK(sel(x1, x2)))
   MARK(sel(x0, sel(x1, x2))) -> c8(MARK(sel(x1, x2)))
   MARK(sel(cons(z0, z1), sel(x1, x2))) -> c8(MARK(sel(x1, x2)))
   MARK(sel(x0, cons(from(z0), x2))) -> c8(A__SEL(mark(x0), cons(a__from(mark(z0)), x2)), MARK(cons(from(z0), x2)))
   MARK(sel(x0, cons(sel(z0, z1), x2))) -> c8(A__SEL(mark(x0), cons(a__sel(mark(z0), mark(z1)), x2)), MARK(cons(sel(z0, z1), x2)))
   MARK(sel(x0, cons(cons(z0, z1), x2))) -> c8(A__SEL(mark(x0), cons(cons(mark(z0), z1), x2)), MARK(cons(cons(z0, z1), x2)))
   MARK(sel(x0, cons(s(z0), x2))) -> c8(A__SEL(mark(x0), cons(s(mark(z0)), x2)), MARK(cons(s(z0), x2)))
   MARK(sel(x0, cons(0, x2))) -> c8(A__SEL(mark(x0), cons(0, x2)), MARK(cons(0, x2)))
   MARK(sel(from(z0), cons(x1, x2))) -> c8(A__SEL(a__from(mark(z0)), cons(mark(x1), x2)), MARK(cons(x1, x2)))
   MARK(sel(sel(z0, z1), cons(x1, x2))) -> c8(A__SEL(a__sel(mark(z0), mark(z1)), cons(mark(x1), x2)), MARK(cons(x1, x2)))
   MARK(sel(s(z0), cons(x1, x2))) -> c8(A__SEL(s(mark(z0)), cons(mark(x1), x2)), MARK(cons(x1, x2)))
   MARK(sel(0, cons(x1, x2))) -> c8(A__SEL(0, cons(mark(x1), x2)), MARK(cons(x1, x2)))
   MARK(sel(x0, cons(x1, x2))) -> c8(MARK(cons(x1, x2)))
   MARK(sel(cons(z0, z1), cons(x1, x2))) -> c8(MARK(cons(x1, x2)))
   MARK(sel(from(from(z0)), x1)) -> c8(A__SEL(a__from(a__from(mark(z0))), mark(x1)), MARK(x1))
   MARK(sel(from(sel(z0, z1)), x1)) -> c8(A__SEL(a__from(a__sel(mark(z0), mark(z1))), mark(x1)), MARK(x1))
   MARK(sel(from(cons(z0, z1)), x1)) -> c8(A__SEL(a__from(cons(mark(z0), z1)), mark(x1)), MARK(x1))
   MARK(sel(from(s(z0)), x1)) -> c8(A__SEL(a__from(s(mark(z0))), mark(x1)), MARK(x1))
   MARK(sel(from(0), x1)) -> c8(A__SEL(a__from(0), mark(x1)), MARK(x1))
   MARK(sel(from(x0), s(z0))) -> c8(MARK(s(z0)))
   MARK(sel(from(x0), x1)) -> c8(MARK(x1))
   MARK(sel(sel(x0, from(z0)), x2)) -> c8(A__SEL(a__sel(mark(x0), a__from(mark(z0))), mark(x2)), MARK(x2))
   MARK(sel(sel(x0, sel(z0, z1)), x2)) -> c8(A__SEL(a__sel(mark(x0), a__sel(mark(z0), mark(z1))), mark(x2)), MARK(x2))
   MARK(sel(sel(x0, cons(z0, z1)), x2)) -> c8(A__SEL(a__sel(mark(x0), cons(mark(z0), z1)), mark(x2)), MARK(x2))
   MARK(sel(sel(x0, s(z0)), x2)) -> c8(A__SEL(a__sel(mark(x0), s(mark(z0))), mark(x2)), MARK(x2))
   MARK(sel(sel(x0, 0), x2)) -> c8(A__SEL(a__sel(mark(x0), 0), mark(x2)), MARK(x2))
   MARK(sel(sel(from(z0), x1), x2)) -> c8(A__SEL(a__sel(a__from(mark(z0)), mark(x1)), mark(x2)), MARK(x2))
   MARK(sel(sel(sel(z0, z1), x1), x2)) -> c8(A__SEL(a__sel(a__sel(mark(z0), mark(z1)), mark(x1)), mark(x2)), MARK(x2))
   MARK(sel(sel(cons(z0, z1), x1), x2)) -> c8(A__SEL(a__sel(cons(mark(z0), z1), mark(x1)), mark(x2)), MARK(x2))
   MARK(sel(sel(s(z0), x1), x2)) -> c8(A__SEL(a__sel(s(mark(z0)), mark(x1)), mark(x2)), MARK(x2))
   MARK(sel(sel(0, x1), x2)) -> c8(A__SEL(a__sel(0, mark(x1)), mark(x2)), MARK(x2))
   MARK(sel(sel(x0, x1), s(z0))) -> c8(MARK(s(z0)))
   MARK(sel(sel(x0, x1), x2)) -> c8(MARK(x2))
K tuples:none
Defined Rule Symbols:   a__from_1, a__sel_2, mark_1

Defined Pair Symbols:   A__FROM_1, A__SEL_2, MARK_1

Compound Symbols:   c_1, c2_1, c6_2, c9_1, c10_1, c3_1, c4_1, c7_1, c8_2, c8_1, c3_2, c4_2, c7_2


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

(193) CdtNarrowingProof (BOTH BOUNDS(ID, ID))
Use narrowing to replace MARK(sel(s(z0), x1)) -> c8(A__SEL(s(mark(z0)), mark(x1)), MARK(x1)) by 
   MARK(sel(s(x0), from(z0))) -> c8(A__SEL(s(mark(x0)), a__from(mark(z0))), MARK(from(z0)))
   MARK(sel(s(x0), sel(z0, z1))) -> c8(A__SEL(s(mark(x0)), a__sel(mark(z0), mark(z1))), MARK(sel(z0, z1)))
   MARK(sel(s(x0), cons(z0, z1))) -> c8(A__SEL(s(mark(x0)), cons(mark(z0), z1)), MARK(cons(z0, z1)))
   MARK(sel(s(x0), s(z0))) -> c8(A__SEL(s(mark(x0)), s(mark(z0))), MARK(s(z0)))
   MARK(sel(s(x0), 0)) -> c8(A__SEL(s(mark(x0)), 0), MARK(0))
   MARK(sel(s(from(z0)), x1)) -> c8(A__SEL(s(a__from(mark(z0))), mark(x1)), MARK(x1))
   MARK(sel(s(sel(z0, z1)), x1)) -> c8(A__SEL(s(a__sel(mark(z0), mark(z1))), mark(x1)), MARK(x1))
   MARK(sel(s(cons(z0, z1)), x1)) -> c8(A__SEL(s(cons(mark(z0), z1)), mark(x1)), MARK(x1))
   MARK(sel(s(s(z0)), x1)) -> c8(A__SEL(s(s(mark(z0))), mark(x1)), MARK(x1))
   MARK(sel(s(0), x1)) -> c8(A__SEL(s(0), mark(x1)), MARK(x1))

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

(194)
Obligation:
Complexity Dependency Tuples Problem

Rules:
   a__from(z0) -> cons(mark(z0), from(s(z0)))
   a__from(z0) -> from(z0)
   a__sel(0, cons(z0, z1)) -> mark(z0)
   a__sel(s(z0), cons(z1, z2)) -> a__sel(mark(z0), mark(z2))
   a__sel(z0, z1) -> sel(z0, z1)
   mark(from(z0)) -> a__from(mark(z0))
   mark(sel(z0, z1)) -> a__sel(mark(z0), mark(z1))
   mark(cons(z0, z1)) -> cons(mark(z0), z1)
   mark(s(z0)) -> s(mark(z0))
   mark(0) -> 0
Tuples:
   A__FROM(z0) -> c(MARK(z0))
   A__SEL(0, cons(z0, z1)) -> c2(MARK(z0))
   MARK(from(z0)) -> c6(A__FROM(mark(z0)), MARK(z0))
   MARK(cons(z0, z1)) -> c9(MARK(z0))
   MARK(s(z0)) -> c10(MARK(z0))
   A__SEL(s(x0), cons(x1, s(z0))) -> c3(MARK(x0))
   A__SEL(s(x0), cons(x1, 0)) -> c3(MARK(x0))
   A__SEL(s(cons(z0, z1)), cons(x1, x2)) -> c3(MARK(cons(z0, z1)))
   A__SEL(s(x0), cons(x1, s(z0))) -> c4(MARK(s(z0)))
   A__SEL(s(cons(z0, z1)), cons(x1, x2)) -> c4(MARK(x2))
   MARK(sel(x0, s(z0))) -> c7(MARK(x0))
   MARK(sel(x0, 0)) -> c7(MARK(x0))
   MARK(sel(cons(z0, z1), x1)) -> c7(MARK(cons(z0, z1)))
   MARK(sel(0, x1)) -> c8(A__SEL(0, mark(x1)), MARK(x1))
   MARK(sel(x0, s(z0))) -> c8(MARK(s(z0)))
   MARK(sel(cons(z0, z1), x1)) -> c8(MARK(x1))
   A__SEL(s(x0), cons(x1, from(x2))) -> c3(A__SEL(mark(x0), cons(mark(mark(x2)), from(s(mark(x2))))), MARK(x0))
   A__SEL(s(x0), cons(x1, from(from(z0)))) -> c3(A__SEL(mark(x0), a__from(a__from(mark(z0)))), MARK(x0))
   A__SEL(s(x0), cons(x1, from(sel(z0, z1)))) -> c3(A__SEL(mark(x0), a__from(a__sel(mark(z0), mark(z1)))), MARK(x0))
   A__SEL(s(x0), cons(x1, from(cons(z0, z1)))) -> c3(A__SEL(mark(x0), a__from(cons(mark(z0), z1))), MARK(x0))
   A__SEL(s(x0), cons(x1, from(s(z0)))) -> c3(A__SEL(mark(x0), a__from(s(mark(z0)))), MARK(x0))
   A__SEL(s(x0), cons(x1, from(0))) -> c3(A__SEL(mark(x0), a__from(0)), MARK(x0))
   A__SEL(s(from(z0)), cons(x1, from(x2))) -> c3(A__SEL(a__from(mark(z0)), a__from(mark(x2))), MARK(from(z0)))
   A__SEL(s(sel(z0, z1)), cons(x1, from(x2))) -> c3(A__SEL(a__sel(mark(z0), mark(z1)), a__from(mark(x2))), MARK(sel(z0, z1)))
   A__SEL(s(s(z0)), cons(x1, from(x2))) -> c3(A__SEL(s(mark(z0)), a__from(mark(x2))), MARK(s(z0)))
   A__SEL(s(x0), cons(x1, from(x2))) -> c3(MARK(x0))
   A__SEL(s(cons(z0, z1)), cons(x1, from(x2))) -> c3(MARK(cons(z0, z1)))
   A__SEL(s(0), cons(x1, from(x2))) -> c3(A__SEL(0, a__from(mark(x2))))
   A__SEL(s(x0), cons(x1, sel(x2, from(z0)))) -> c3(A__SEL(mark(x0), a__sel(mark(x2), a__from(mark(z0)))), MARK(x0))
   A__SEL(s(x0), cons(x1, sel(x2, sel(z0, z1)))) -> c3(A__SEL(mark(x0), a__sel(mark(x2), a__sel(mark(z0), mark(z1)))), MARK(x0))
   A__SEL(s(x0), cons(x1, sel(x2, cons(z0, z1)))) -> c3(A__SEL(mark(x0), a__sel(mark(x2), cons(mark(z0), z1))), MARK(x0))
   A__SEL(s(x0), cons(x1, sel(x2, s(z0)))) -> c3(A__SEL(mark(x0), a__sel(mark(x2), s(mark(z0)))), MARK(x0))
   A__SEL(s(x0), cons(x1, sel(x2, 0))) -> c3(A__SEL(mark(x0), a__sel(mark(x2), 0)), MARK(x0))
   A__SEL(s(x0), cons(x1, sel(from(z0), x3))) -> c3(A__SEL(mark(x0), a__sel(a__from(mark(z0)), mark(x3))), MARK(x0))
   A__SEL(s(x0), cons(x1, sel(sel(z0, z1), x3))) -> c3(A__SEL(mark(x0), a__sel(a__sel(mark(z0), mark(z1)), mark(x3))), MARK(x0))
   A__SEL(s(x0), cons(x1, sel(cons(z0, z1), x3))) -> c3(A__SEL(mark(x0), a__sel(cons(mark(z0), z1), mark(x3))), MARK(x0))
   A__SEL(s(x0), cons(x1, sel(s(z0), x3))) -> c3(A__SEL(mark(x0), a__sel(s(mark(z0)), mark(x3))), MARK(x0))
   A__SEL(s(x0), cons(x1, sel(0, x3))) -> c3(A__SEL(mark(x0), a__sel(0, mark(x3))), MARK(x0))
   A__SEL(s(from(z0)), cons(x1, sel(x2, x3))) -> c3(A__SEL(a__from(mark(z0)), a__sel(mark(x2), mark(x3))), MARK(from(z0)))
   A__SEL(s(sel(z0, z1)), cons(x1, sel(x2, x3))) -> c3(A__SEL(a__sel(mark(z0), mark(z1)), a__sel(mark(x2), mark(x3))), MARK(sel(z0, z1)))
   A__SEL(s(s(z0)), cons(x1, sel(x2, x3))) -> c3(A__SEL(s(mark(z0)), a__sel(mark(x2), mark(x3))), MARK(s(z0)))
   A__SEL(s(x0), cons(x1, sel(x2, x3))) -> c3(MARK(x0))
   A__SEL(s(cons(z0, z1)), cons(x1, sel(x2, x3))) -> c3(MARK(cons(z0, z1)))
   A__SEL(s(0), cons(x1, sel(x2, x3))) -> c3(A__SEL(0, a__sel(mark(x2), mark(x3))))
   A__SEL(s(x0), cons(x1, cons(from(z0), x3))) -> c3(A__SEL(mark(x0), cons(a__from(mark(z0)), x3)), MARK(x0))
   A__SEL(s(x0), cons(x1, cons(sel(z0, z1), x3))) -> c3(A__SEL(mark(x0), cons(a__sel(mark(z0), mark(z1)), x3)), MARK(x0))
   A__SEL(s(x0), cons(x1, cons(cons(z0, z1), x3))) -> c3(A__SEL(mark(x0), cons(cons(mark(z0), z1), x3)), MARK(x0))
   A__SEL(s(x0), cons(x1, cons(s(z0), x3))) -> c3(A__SEL(mark(x0), cons(s(mark(z0)), x3)), MARK(x0))
   A__SEL(s(x0), cons(x1, cons(0, x3))) -> c3(A__SEL(mark(x0), cons(0, x3)), MARK(x0))
   A__SEL(s(from(z0)), cons(x1, cons(x2, x3))) -> c3(A__SEL(a__from(mark(z0)), cons(mark(x2), x3)), MARK(from(z0)))
   A__SEL(s(sel(z0, z1)), cons(x1, cons(x2, x3))) -> c3(A__SEL(a__sel(mark(z0), mark(z1)), cons(mark(x2), x3)), MARK(sel(z0, z1)))
   A__SEL(s(s(z0)), cons(x1, cons(x2, x3))) -> c3(A__SEL(s(mark(z0)), cons(mark(x2), x3)), MARK(s(z0)))
   A__SEL(s(cons(z0, z1)), cons(x1, cons(x2, x3))) -> c3(MARK(cons(z0, z1)))
   A__SEL(s(0), cons(x1, cons(x2, x3))) -> c3(A__SEL(0, cons(mark(x2), x3)))
   A__SEL(s(from(from(z0))), cons(x1, x2)) -> c3(A__SEL(a__from(a__from(mark(z0))), mark(x2)), MARK(from(from(z0))))
   A__SEL(s(from(sel(z0, z1))), cons(x1, x2)) -> c3(A__SEL(a__from(a__sel(mark(z0), mark(z1))), mark(x2)), MARK(from(sel(z0, z1))))
   A__SEL(s(from(cons(z0, z1))), cons(x1, x2)) -> c3(A__SEL(a__from(cons(mark(z0), z1)), mark(x2)), MARK(from(cons(z0, z1))))
   A__SEL(s(from(s(z0))), cons(x1, x2)) -> c3(A__SEL(a__from(s(mark(z0))), mark(x2)), MARK(from(s(z0))))
   A__SEL(s(from(0)), cons(x1, x2)) -> c3(A__SEL(a__from(0), mark(x2)), MARK(from(0)))
   A__SEL(s(from(x0)), cons(x1, x2)) -> c3(MARK(from(x0)))
   A__SEL(s(from(x0)), cons(x1, s(z0))) -> c3(MARK(from(x0)))
   A__SEL(s(from(x0)), cons(x1, 0)) -> c3(MARK(from(x0)))
   A__SEL(s(sel(x0, from(z0))), cons(x2, x3)) -> c3(A__SEL(a__sel(mark(x0), a__from(mark(z0))), mark(x3)), MARK(sel(x0, from(z0))))
   A__SEL(s(sel(x0, sel(z0, z1))), cons(x2, x3)) -> c3(A__SEL(a__sel(mark(x0), a__sel(mark(z0), mark(z1))), mark(x3)), MARK(sel(x0, sel(z0, z1))))
   A__SEL(s(sel(x0, cons(z0, z1))), cons(x2, x3)) -> c3(A__SEL(a__sel(mark(x0), cons(mark(z0), z1)), mark(x3)), MARK(sel(x0, cons(z0, z1))))
   A__SEL(s(sel(x0, s(z0))), cons(x2, x3)) -> c3(A__SEL(a__sel(mark(x0), s(mark(z0))), mark(x3)), MARK(sel(x0, s(z0))))
   A__SEL(s(sel(x0, 0)), cons(x2, x3)) -> c3(A__SEL(a__sel(mark(x0), 0), mark(x3)), MARK(sel(x0, 0)))
   A__SEL(s(sel(from(z0), x1)), cons(x2, x3)) -> c3(A__SEL(a__sel(a__from(mark(z0)), mark(x1)), mark(x3)), MARK(sel(from(z0), x1)))
   A__SEL(s(sel(sel(z0, z1), x1)), cons(x2, x3)) -> c3(A__SEL(a__sel(a__sel(mark(z0), mark(z1)), mark(x1)), mark(x3)), MARK(sel(sel(z0, z1), x1)))
   A__SEL(s(sel(cons(z0, z1), x1)), cons(x2, x3)) -> c3(A__SEL(a__sel(cons(mark(z0), z1), mark(x1)), mark(x3)), MARK(sel(cons(z0, z1), x1)))
   A__SEL(s(sel(s(z0), x1)), cons(x2, x3)) -> c3(A__SEL(a__sel(s(mark(z0)), mark(x1)), mark(x3)), MARK(sel(s(z0), x1)))
   A__SEL(s(sel(0, x1)), cons(x2, x3)) -> c3(A__SEL(a__sel(0, mark(x1)), mark(x3)), MARK(sel(0, x1)))
   A__SEL(s(sel(x0, x1)), cons(x2, s(z0))) -> c3(MARK(sel(x0, x1)))
   A__SEL(s(sel(x0, x1)), cons(x2, 0)) -> c3(MARK(sel(x0, x1)))
   A__SEL(s(sel(x0, x1)), cons(x2, x3)) -> c3(MARK(sel(x0, x1)))
   A__SEL(s(s(from(z0))), cons(x1, x2)) -> c3(A__SEL(s(a__from(mark(z0))), mark(x2)), MARK(s(from(z0))))
   A__SEL(s(s(sel(z0, z1))), cons(x1, x2)) -> c3(A__SEL(s(a__sel(mark(z0), mark(z1))), mark(x2)), MARK(s(sel(z0, z1))))
   A__SEL(s(s(cons(z0, z1))), cons(x1, x2)) -> c3(A__SEL(s(cons(mark(z0), z1)), mark(x2)), MARK(s(cons(z0, z1))))
   A__SEL(s(s(s(z0))), cons(x1, x2)) -> c3(A__SEL(s(s(mark(z0))), mark(x2)), MARK(s(s(z0))))
   A__SEL(s(s(0)), cons(x1, x2)) -> c3(A__SEL(s(0), mark(x2)), MARK(s(0)))
   A__SEL(s(s(x0)), cons(x1, x2)) -> c3(MARK(s(x0)))
   A__SEL(s(s(x0)), cons(x1, s(z0))) -> c3(MARK(s(x0)))
   A__SEL(s(s(x0)), cons(x1, 0)) -> c3(MARK(s(x0)))
   A__SEL(s(x0), cons(x1, from(x2))) -> c4(A__SEL(mark(x0), cons(mark(mark(x2)), from(s(mark(x2))))), MARK(from(x2)))
   A__SEL(s(x0), cons(x1, from(from(z0)))) -> c4(A__SEL(mark(x0), a__from(a__from(mark(z0)))), MARK(from(from(z0))))
   A__SEL(s(x0), cons(x1, from(sel(z0, z1)))) -> c4(A__SEL(mark(x0), a__from(a__sel(mark(z0), mark(z1)))), MARK(from(sel(z0, z1))))
   A__SEL(s(x0), cons(x1, from(cons(z0, z1)))) -> c4(A__SEL(mark(x0), a__from(cons(mark(z0), z1))), MARK(from(cons(z0, z1))))
   A__SEL(s(x0), cons(x1, from(s(z0)))) -> c4(A__SEL(mark(x0), a__from(s(mark(z0)))), MARK(from(s(z0))))
   A__SEL(s(x0), cons(x1, from(0))) -> c4(A__SEL(mark(x0), a__from(0)), MARK(from(0)))
   A__SEL(s(from(z0)), cons(x1, from(x2))) -> c4(A__SEL(a__from(mark(z0)), a__from(mark(x2))), MARK(from(x2)))
   A__SEL(s(sel(z0, z1)), cons(x1, from(x2))) -> c4(A__SEL(a__sel(mark(z0), mark(z1)), a__from(mark(x2))), MARK(from(x2)))
   A__SEL(s(s(z0)), cons(x1, from(x2))) -> c4(A__SEL(s(mark(z0)), a__from(mark(x2))), MARK(from(x2)))
   A__SEL(s(0), cons(x1, from(x2))) -> c4(A__SEL(0, a__from(mark(x2))), MARK(from(x2)))
   A__SEL(s(x0), cons(x1, from(x2))) -> c4(MARK(from(x2)))
   A__SEL(s(cons(z0, z1)), cons(x1, from(x2))) -> c4(MARK(from(x2)))
   A__SEL(s(x0), cons(x1, sel(x2, from(z0)))) -> c4(A__SEL(mark(x0), a__sel(mark(x2), a__from(mark(z0)))), MARK(sel(x2, from(z0))))
   A__SEL(s(x0), cons(x1, sel(x2, sel(z0, z1)))) -> c4(A__SEL(mark(x0), a__sel(mark(x2), a__sel(mark(z0), mark(z1)))), MARK(sel(x2, sel(z0, z1))))
   A__SEL(s(x0), cons(x1, sel(x2, cons(z0, z1)))) -> c4(A__SEL(mark(x0), a__sel(mark(x2), cons(mark(z0), z1))), MARK(sel(x2, cons(z0, z1))))
   A__SEL(s(x0), cons(x1, sel(x2, s(z0)))) -> c4(A__SEL(mark(x0), a__sel(mark(x2), s(mark(z0)))), MARK(sel(x2, s(z0))))
   A__SEL(s(x0), cons(x1, sel(x2, 0))) -> c4(A__SEL(mark(x0), a__sel(mark(x2), 0)), MARK(sel(x2, 0)))
   A__SEL(s(x0), cons(x1, sel(from(z0), x3))) -> c4(A__SEL(mark(x0), a__sel(a__from(mark(z0)), mark(x3))), MARK(sel(from(z0), x3)))
   A__SEL(s(x0), cons(x1, sel(sel(z0, z1), x3))) -> c4(A__SEL(mark(x0), a__sel(a__sel(mark(z0), mark(z1)), mark(x3))), MARK(sel(sel(z0, z1), x3)))
   A__SEL(s(x0), cons(x1, sel(cons(z0, z1), x3))) -> c4(A__SEL(mark(x0), a__sel(cons(mark(z0), z1), mark(x3))), MARK(sel(cons(z0, z1), x3)))
   A__SEL(s(x0), cons(x1, sel(s(z0), x3))) -> c4(A__SEL(mark(x0), a__sel(s(mark(z0)), mark(x3))), MARK(sel(s(z0), x3)))
   A__SEL(s(x0), cons(x1, sel(0, x3))) -> c4(A__SEL(mark(x0), a__sel(0, mark(x3))), MARK(sel(0, x3)))
   A__SEL(s(from(z0)), cons(x1, sel(x2, x3))) -> c4(A__SEL(a__from(mark(z0)), a__sel(mark(x2), mark(x3))), MARK(sel(x2, x3)))
   A__SEL(s(sel(z0, z1)), cons(x1, sel(x2, x3))) -> c4(A__SEL(a__sel(mark(z0), mark(z1)), a__sel(mark(x2), mark(x3))), MARK(sel(x2, x3)))
   A__SEL(s(s(z0)), cons(x1, sel(x2, x3))) -> c4(A__SEL(s(mark(z0)), a__sel(mark(x2), mark(x3))), MARK(sel(x2, x3)))
   A__SEL(s(0), cons(x1, sel(x2, x3))) -> c4(A__SEL(0, a__sel(mark(x2), mark(x3))), MARK(sel(x2, x3)))
   A__SEL(s(x0), cons(x1, sel(x2, x3))) -> c4(MARK(sel(x2, x3)))
   A__SEL(s(cons(z0, z1)), cons(x1, sel(x2, x3))) -> c4(MARK(sel(x2, x3)))
   A__SEL(s(x0), cons(x1, cons(from(z0), x3))) -> c4(A__SEL(mark(x0), cons(a__from(mark(z0)), x3)), MARK(cons(from(z0), x3)))
   A__SEL(s(x0), cons(x1, cons(sel(z0, z1), x3))) -> c4(A__SEL(mark(x0), cons(a__sel(mark(z0), mark(z1)), x3)), MARK(cons(sel(z0, z1), x3)))
   A__SEL(s(x0), cons(x1, cons(cons(z0, z1), x3))) -> c4(A__SEL(mark(x0), cons(cons(mark(z0), z1), x3)), MARK(cons(cons(z0, z1), x3)))
   A__SEL(s(x0), cons(x1, cons(s(z0), x3))) -> c4(A__SEL(mark(x0), cons(s(mark(z0)), x3)), MARK(cons(s(z0), x3)))
   A__SEL(s(x0), cons(x1, cons(0, x3))) -> c4(A__SEL(mark(x0), cons(0, x3)), MARK(cons(0, x3)))
   A__SEL(s(from(z0)), cons(x1, cons(x2, x3))) -> c4(A__SEL(a__from(mark(z0)), cons(mark(x2), x3)), MARK(cons(x2, x3)))
   A__SEL(s(sel(z0, z1)), cons(x1, cons(x2, x3))) -> c4(A__SEL(a__sel(mark(z0), mark(z1)), cons(mark(x2), x3)), MARK(cons(x2, x3)))
   A__SEL(s(s(z0)), cons(x1, cons(x2, x3))) -> c4(A__SEL(s(mark(z0)), cons(mark(x2), x3)), MARK(cons(x2, x3)))
   A__SEL(s(0), cons(x1, cons(x2, x3))) -> c4(A__SEL(0, cons(mark(x2), x3)), MARK(cons(x2, x3)))
   A__SEL(s(x0), cons(x1, cons(x2, x3))) -> c4(MARK(cons(x2, x3)))
   A__SEL(s(cons(z0, z1)), cons(x1, cons(x2, x3))) -> c4(MARK(cons(x2, x3)))
   A__SEL(s(from(from(z0))), cons(x1, x2)) -> c4(A__SEL(a__from(a__from(mark(z0))), mark(x2)), MARK(x2))
   A__SEL(s(from(sel(z0, z1))), cons(x1, x2)) -> c4(A__SEL(a__from(a__sel(mark(z0), mark(z1))), mark(x2)), MARK(x2))
   A__SEL(s(from(cons(z0, z1))), cons(x1, x2)) -> c4(A__SEL(a__from(cons(mark(z0), z1)), mark(x2)), MARK(x2))
   A__SEL(s(from(s(z0))), cons(x1, x2)) -> c4(A__SEL(a__from(s(mark(z0))), mark(x2)), MARK(x2))
   A__SEL(s(from(0)), cons(x1, x2)) -> c4(A__SEL(a__from(0), mark(x2)), MARK(x2))
   A__SEL(s(from(x0)), cons(x1, s(z0))) -> c4(MARK(s(z0)))
   A__SEL(s(from(x0)), cons(x1, x2)) -> c4(MARK(x2))
   A__SEL(s(sel(x0, from(z0))), cons(x2, x3)) -> c4(A__SEL(a__sel(mark(x0), a__from(mark(z0))), mark(x3)), MARK(x3))
   A__SEL(s(sel(x0, sel(z0, z1))), cons(x2, x3)) -> c4(A__SEL(a__sel(mark(x0), a__sel(mark(z0), mark(z1))), mark(x3)), MARK(x3))
   A__SEL(s(sel(x0, cons(z0, z1))), cons(x2, x3)) -> c4(A__SEL(a__sel(mark(x0), cons(mark(z0), z1)), mark(x3)), MARK(x3))
   A__SEL(s(sel(x0, s(z0))), cons(x2, x3)) -> c4(A__SEL(a__sel(mark(x0), s(mark(z0))), mark(x3)), MARK(x3))
   A__SEL(s(sel(x0, 0)), cons(x2, x3)) -> c4(A__SEL(a__sel(mark(x0), 0), mark(x3)), MARK(x3))
   A__SEL(s(sel(from(z0), x1)), cons(x2, x3)) -> c4(A__SEL(a__sel(a__from(mark(z0)), mark(x1)), mark(x3)), MARK(x3))
   A__SEL(s(sel(sel(z0, z1), x1)), cons(x2, x3)) -> c4(A__SEL(a__sel(a__sel(mark(z0), mark(z1)), mark(x1)), mark(x3)), MARK(x3))
   A__SEL(s(sel(cons(z0, z1), x1)), cons(x2, x3)) -> c4(A__SEL(a__sel(cons(mark(z0), z1), mark(x1)), mark(x3)), MARK(x3))
   A__SEL(s(sel(s(z0), x1)), cons(x2, x3)) -> c4(A__SEL(a__sel(s(mark(z0)), mark(x1)), mark(x3)), MARK(x3))
   A__SEL(s(sel(0, x1)), cons(x2, x3)) -> c4(A__SEL(a__sel(0, mark(x1)), mark(x3)), MARK(x3))
   A__SEL(s(sel(x0, x1)), cons(x2, s(z0))) -> c4(MARK(s(z0)))
   A__SEL(s(sel(x0, x1)), cons(x2, x3)) -> c4(MARK(x3))
   A__SEL(s(s(from(z0))), cons(x1, x2)) -> c4(A__SEL(s(a__from(mark(z0))), mark(x2)), MARK(x2))
   A__SEL(s(s(sel(z0, z1))), cons(x1, x2)) -> c4(A__SEL(s(a__sel(mark(z0), mark(z1))), mark(x2)), MARK(x2))
   A__SEL(s(s(cons(z0, z1))), cons(x1, x2)) -> c4(A__SEL(s(cons(mark(z0), z1)), mark(x2)), MARK(x2))
   A__SEL(s(s(s(z0))), cons(x1, x2)) -> c4(A__SEL(s(s(mark(z0))), mark(x2)), MARK(x2))
   A__SEL(s(s(0)), cons(x1, x2)) -> c4(A__SEL(s(0), mark(x2)), MARK(x2))
   A__SEL(s(s(x0)), cons(x1, s(z0))) -> c4(MARK(s(z0)))
   A__SEL(s(0), cons(x0, s(z0))) -> c4(MARK(s(z0)))
   MARK(sel(x0, from(x1))) -> c7(A__SEL(mark(x0), cons(mark(mark(x1)), from(s(mark(x1))))), MARK(x0))
   MARK(sel(x0, from(from(z0)))) -> c7(A__SEL(mark(x0), a__from(a__from(mark(z0)))), MARK(x0))
   MARK(sel(x0, from(sel(z0, z1)))) -> c7(A__SEL(mark(x0), a__from(a__sel(mark(z0), mark(z1)))), MARK(x0))
   MARK(sel(x0, from(cons(z0, z1)))) -> c7(A__SEL(mark(x0), a__from(cons(mark(z0), z1))), MARK(x0))
   MARK(sel(x0, from(s(z0)))) -> c7(A__SEL(mark(x0), a__from(s(mark(z0)))), MARK(x0))
   MARK(sel(x0, from(0))) -> c7(A__SEL(mark(x0), a__from(0)), MARK(x0))
   MARK(sel(from(z0), from(x1))) -> c7(A__SEL(a__from(mark(z0)), a__from(mark(x1))), MARK(from(z0)))
   MARK(sel(sel(z0, z1), from(x1))) -> c7(A__SEL(a__sel(mark(z0), mark(z1)), a__from(mark(x1))), MARK(sel(z0, z1)))
   MARK(sel(s(z0), from(x1))) -> c7(A__SEL(s(mark(z0)), a__from(mark(x1))), MARK(s(z0)))
   MARK(sel(x0, from(x1))) -> c7(MARK(x0))
   MARK(sel(cons(z0, z1), from(x1))) -> c7(MARK(cons(z0, z1)))
   MARK(sel(0, from(x1))) -> c7(A__SEL(0, a__from(mark(x1))))
   MARK(sel(x0, sel(x1, from(z0)))) -> c7(A__SEL(mark(x0), a__sel(mark(x1), a__from(mark(z0)))), MARK(x0))
   MARK(sel(x0, sel(x1, sel(z0, z1)))) -> c7(A__SEL(mark(x0), a__sel(mark(x1), a__sel(mark(z0), mark(z1)))), MARK(x0))
   MARK(sel(x0, sel(x1, cons(z0, z1)))) -> c7(A__SEL(mark(x0), a__sel(mark(x1), cons(mark(z0), z1))), MARK(x0))
   MARK(sel(x0, sel(x1, s(z0)))) -> c7(A__SEL(mark(x0), a__sel(mark(x1), s(mark(z0)))), MARK(x0))
   MARK(sel(x0, sel(x1, 0))) -> c7(A__SEL(mark(x0), a__sel(mark(x1), 0)), MARK(x0))
   MARK(sel(x0, sel(from(z0), x2))) -> c7(A__SEL(mark(x0), a__sel(a__from(mark(z0)), mark(x2))), MARK(x0))
   MARK(sel(x0, sel(sel(z0, z1), x2))) -> c7(A__SEL(mark(x0), a__sel(a__sel(mark(z0), mark(z1)), mark(x2))), MARK(x0))
   MARK(sel(x0, sel(cons(z0, z1), x2))) -> c7(A__SEL(mark(x0), a__sel(cons(mark(z0), z1), mark(x2))), MARK(x0))
   MARK(sel(x0, sel(s(z0), x2))) -> c7(A__SEL(mark(x0), a__sel(s(mark(z0)), mark(x2))), MARK(x0))
   MARK(sel(x0, sel(0, x2))) -> c7(A__SEL(mark(x0), a__sel(0, mark(x2))), MARK(x0))
   MARK(sel(from(z0), sel(x1, x2))) -> c7(A__SEL(a__from(mark(z0)), a__sel(mark(x1), mark(x2))), MARK(from(z0)))
   MARK(sel(sel(z0, z1), sel(x1, x2))) -> c7(A__SEL(a__sel(mark(z0), mark(z1)), a__sel(mark(x1), mark(x2))), MARK(sel(z0, z1)))
   MARK(sel(s(z0), sel(x1, x2))) -> c7(A__SEL(s(mark(z0)), a__sel(mark(x1), mark(x2))), MARK(s(z0)))
   MARK(sel(x0, sel(x1, x2))) -> c7(MARK(x0))
   MARK(sel(cons(z0, z1), sel(x1, x2))) -> c7(MARK(cons(z0, z1)))
   MARK(sel(0, sel(x1, x2))) -> c7(A__SEL(0, a__sel(mark(x1), mark(x2))))
   MARK(sel(x0, cons(from(z0), x2))) -> c7(A__SEL(mark(x0), cons(a__from(mark(z0)), x2)), MARK(x0))
   MARK(sel(x0, cons(sel(z0, z1), x2))) -> c7(A__SEL(mark(x0), cons(a__sel(mark(z0), mark(z1)), x2)), MARK(x0))
   MARK(sel(x0, cons(cons(z0, z1), x2))) -> c7(A__SEL(mark(x0), cons(cons(mark(z0), z1), x2)), MARK(x0))
   MARK(sel(x0, cons(s(z0), x2))) -> c7(A__SEL(mark(x0), cons(s(mark(z0)), x2)), MARK(x0))
   MARK(sel(x0, cons(0, x2))) -> c7(A__SEL(mark(x0), cons(0, x2)), MARK(x0))
   MARK(sel(from(z0), cons(x1, x2))) -> c7(A__SEL(a__from(mark(z0)), cons(mark(x1), x2)), MARK(from(z0)))
   MARK(sel(sel(z0, z1), cons(x1, x2))) -> c7(A__SEL(a__sel(mark(z0), mark(z1)), cons(mark(x1), x2)), MARK(sel(z0, z1)))
   MARK(sel(s(z0), cons(x1, x2))) -> c7(A__SEL(s(mark(z0)), cons(mark(x1), x2)), MARK(s(z0)))
   MARK(sel(cons(z0, z1), cons(x1, x2))) -> c7(MARK(cons(z0, z1)))
   MARK(sel(0, cons(x1, x2))) -> c7(A__SEL(0, cons(mark(x1), x2)))
   MARK(sel(from(from(z0)), x1)) -> c7(A__SEL(a__from(a__from(mark(z0))), mark(x1)), MARK(from(from(z0))))
   MARK(sel(from(sel(z0, z1)), x1)) -> c7(A__SEL(a__from(a__sel(mark(z0), mark(z1))), mark(x1)), MARK(from(sel(z0, z1))))
   MARK(sel(from(cons(z0, z1)), x1)) -> c7(A__SEL(a__from(cons(mark(z0), z1)), mark(x1)), MARK(from(cons(z0, z1))))
   MARK(sel(from(s(z0)), x1)) -> c7(A__SEL(a__from(s(mark(z0))), mark(x1)), MARK(from(s(z0))))
   MARK(sel(from(0), x1)) -> c7(A__SEL(a__from(0), mark(x1)), MARK(from(0)))
   MARK(sel(from(x0), x1)) -> c7(MARK(from(x0)))
   MARK(sel(from(x0), s(z0))) -> c7(MARK(from(x0)))
   MARK(sel(from(x0), 0)) -> c7(MARK(from(x0)))
   MARK(sel(sel(x0, from(z0)), x2)) -> c7(A__SEL(a__sel(mark(x0), a__from(mark(z0))), mark(x2)), MARK(sel(x0, from(z0))))
   MARK(sel(sel(x0, sel(z0, z1)), x2)) -> c7(A__SEL(a__sel(mark(x0), a__sel(mark(z0), mark(z1))), mark(x2)), MARK(sel(x0, sel(z0, z1))))
   MARK(sel(sel(x0, cons(z0, z1)), x2)) -> c7(A__SEL(a__sel(mark(x0), cons(mark(z0), z1)), mark(x2)), MARK(sel(x0, cons(z0, z1))))
   MARK(sel(sel(x0, s(z0)), x2)) -> c7(A__SEL(a__sel(mark(x0), s(mark(z0))), mark(x2)), MARK(sel(x0, s(z0))))
   MARK(sel(sel(x0, 0), x2)) -> c7(A__SEL(a__sel(mark(x0), 0), mark(x2)), MARK(sel(x0, 0)))
   MARK(sel(sel(from(z0), x1), x2)) -> c7(A__SEL(a__sel(a__from(mark(z0)), mark(x1)), mark(x2)), MARK(sel(from(z0), x1)))
   MARK(sel(sel(sel(z0, z1), x1), x2)) -> c7(A__SEL(a__sel(a__sel(mark(z0), mark(z1)), mark(x1)), mark(x2)), MARK(sel(sel(z0, z1), x1)))
   MARK(sel(sel(cons(z0, z1), x1), x2)) -> c7(A__SEL(a__sel(cons(mark(z0), z1), mark(x1)), mark(x2)), MARK(sel(cons(z0, z1), x1)))
   MARK(sel(sel(s(z0), x1), x2)) -> c7(A__SEL(a__sel(s(mark(z0)), mark(x1)), mark(x2)), MARK(sel(s(z0), x1)))
   MARK(sel(sel(0, x1), x2)) -> c7(A__SEL(a__sel(0, mark(x1)), mark(x2)), MARK(sel(0, x1)))
   MARK(sel(sel(x0, x1), s(z0))) -> c7(MARK(sel(x0, x1)))
   MARK(sel(sel(x0, x1), 0)) -> c7(MARK(sel(x0, x1)))
   MARK(sel(sel(x0, x1), x2)) -> c7(MARK(sel(x0, x1)))
   MARK(sel(s(from(z0)), x1)) -> c7(A__SEL(s(a__from(mark(z0))), mark(x1)), MARK(s(from(z0))))
   MARK(sel(s(sel(z0, z1)), x1)) -> c7(A__SEL(s(a__sel(mark(z0), mark(z1))), mark(x1)), MARK(s(sel(z0, z1))))
   MARK(sel(s(cons(z0, z1)), x1)) -> c7(A__SEL(s(cons(mark(z0), z1)), mark(x1)), MARK(s(cons(z0, z1))))
   MARK(sel(s(s(z0)), x1)) -> c7(A__SEL(s(s(mark(z0))), mark(x1)), MARK(s(s(z0))))
   MARK(sel(s(0), x1)) -> c7(A__SEL(s(0), mark(x1)), MARK(s(0)))
   MARK(sel(s(x0), x1)) -> c7(MARK(s(x0)))
   MARK(sel(s(x0), s(z0))) -> c7(MARK(s(x0)))
   MARK(sel(s(x0), 0)) -> c7(MARK(s(x0)))
   MARK(sel(x0, from(x1))) -> c8(A__SEL(mark(x0), cons(mark(mark(x1)), from(s(mark(x1))))), MARK(from(x1)))
   MARK(sel(x0, from(from(z0)))) -> c8(A__SEL(mark(x0), a__from(a__from(mark(z0)))), MARK(from(from(z0))))
   MARK(sel(x0, from(sel(z0, z1)))) -> c8(A__SEL(mark(x0), a__from(a__sel(mark(z0), mark(z1)))), MARK(from(sel(z0, z1))))
   MARK(sel(x0, from(cons(z0, z1)))) -> c8(A__SEL(mark(x0), a__from(cons(mark(z0), z1))), MARK(from(cons(z0, z1))))
   MARK(sel(x0, from(s(z0)))) -> c8(A__SEL(mark(x0), a__from(s(mark(z0)))), MARK(from(s(z0))))
   MARK(sel(x0, from(0))) -> c8(A__SEL(mark(x0), a__from(0)), MARK(from(0)))
   MARK(sel(from(z0), from(x1))) -> c8(A__SEL(a__from(mark(z0)), a__from(mark(x1))), MARK(from(x1)))
   MARK(sel(sel(z0, z1), from(x1))) -> c8(A__SEL(a__sel(mark(z0), mark(z1)), a__from(mark(x1))), MARK(from(x1)))
   MARK(sel(s(z0), from(x1))) -> c8(A__SEL(s(mark(z0)), a__from(mark(x1))), MARK(from(x1)))
   MARK(sel(0, from(x1))) -> c8(A__SEL(0, a__from(mark(x1))), MARK(from(x1)))
   MARK(sel(x0, from(x1))) -> c8(MARK(from(x1)))
   MARK(sel(cons(z0, z1), from(x1))) -> c8(MARK(from(x1)))
   MARK(sel(x0, sel(x1, from(z0)))) -> c8(A__SEL(mark(x0), a__sel(mark(x1), a__from(mark(z0)))), MARK(sel(x1, from(z0))))
   MARK(sel(x0, sel(x1, sel(z0, z1)))) -> c8(A__SEL(mark(x0), a__sel(mark(x1), a__sel(mark(z0), mark(z1)))), MARK(sel(x1, sel(z0, z1))))
   MARK(sel(x0, sel(x1, cons(z0, z1)))) -> c8(A__SEL(mark(x0), a__sel(mark(x1), cons(mark(z0), z1))), MARK(sel(x1, cons(z0, z1))))
   MARK(sel(x0, sel(x1, s(z0)))) -> c8(A__SEL(mark(x0), a__sel(mark(x1), s(mark(z0)))), MARK(sel(x1, s(z0))))
   MARK(sel(x0, sel(x1, 0))) -> c8(A__SEL(mark(x0), a__sel(mark(x1), 0)), MARK(sel(x1, 0)))
   MARK(sel(x0, sel(from(z0), x2))) -> c8(A__SEL(mark(x0), a__sel(a__from(mark(z0)), mark(x2))), MARK(sel(from(z0), x2)))
   MARK(sel(x0, sel(sel(z0, z1), x2))) -> c8(A__SEL(mark(x0), a__sel(a__sel(mark(z0), mark(z1)), mark(x2))), MARK(sel(sel(z0, z1), x2)))
   MARK(sel(x0, sel(cons(z0, z1), x2))) -> c8(A__SEL(mark(x0), a__sel(cons(mark(z0), z1), mark(x2))), MARK(sel(cons(z0, z1), x2)))
   MARK(sel(x0, sel(s(z0), x2))) -> c8(A__SEL(mark(x0), a__sel(s(mark(z0)), mark(x2))), MARK(sel(s(z0), x2)))
   MARK(sel(x0, sel(0, x2))) -> c8(A__SEL(mark(x0), a__sel(0, mark(x2))), MARK(sel(0, x2)))
   MARK(sel(from(z0), sel(x1, x2))) -> c8(A__SEL(a__from(mark(z0)), a__sel(mark(x1), mark(x2))), MARK(sel(x1, x2)))
   MARK(sel(sel(z0, z1), sel(x1, x2))) -> c8(A__SEL(a__sel(mark(z0), mark(z1)), a__sel(mark(x1), mark(x2))), MARK(sel(x1, x2)))
   MARK(sel(s(z0), sel(x1, x2))) -> c8(A__SEL(s(mark(z0)), a__sel(mark(x1), mark(x2))), MARK(sel(x1, x2)))
   MARK(sel(0, sel(x1, x2))) -> c8(A__SEL(0, a__sel(mark(x1), mark(x2))), MARK(sel(x1, x2)))
   MARK(sel(x0, sel(x1, x2))) -> c8(MARK(sel(x1, x2)))
   MARK(sel(cons(z0, z1), sel(x1, x2))) -> c8(MARK(sel(x1, x2)))
   MARK(sel(x0, cons(from(z0), x2))) -> c8(A__SEL(mark(x0), cons(a__from(mark(z0)), x2)), MARK(cons(from(z0), x2)))
   MARK(sel(x0, cons(sel(z0, z1), x2))) -> c8(A__SEL(mark(x0), cons(a__sel(mark(z0), mark(z1)), x2)), MARK(cons(sel(z0, z1), x2)))
   MARK(sel(x0, cons(cons(z0, z1), x2))) -> c8(A__SEL(mark(x0), cons(cons(mark(z0), z1), x2)), MARK(cons(cons(z0, z1), x2)))
   MARK(sel(x0, cons(s(z0), x2))) -> c8(A__SEL(mark(x0), cons(s(mark(z0)), x2)), MARK(cons(s(z0), x2)))
   MARK(sel(x0, cons(0, x2))) -> c8(A__SEL(mark(x0), cons(0, x2)), MARK(cons(0, x2)))
   MARK(sel(from(z0), cons(x1, x2))) -> c8(A__SEL(a__from(mark(z0)), cons(mark(x1), x2)), MARK(cons(x1, x2)))
   MARK(sel(sel(z0, z1), cons(x1, x2))) -> c8(A__SEL(a__sel(mark(z0), mark(z1)), cons(mark(x1), x2)), MARK(cons(x1, x2)))
   MARK(sel(s(z0), cons(x1, x2))) -> c8(A__SEL(s(mark(z0)), cons(mark(x1), x2)), MARK(cons(x1, x2)))
   MARK(sel(0, cons(x1, x2))) -> c8(A__SEL(0, cons(mark(x1), x2)), MARK(cons(x1, x2)))
   MARK(sel(x0, cons(x1, x2))) -> c8(MARK(cons(x1, x2)))
   MARK(sel(cons(z0, z1), cons(x1, x2))) -> c8(MARK(cons(x1, x2)))
   MARK(sel(from(from(z0)), x1)) -> c8(A__SEL(a__from(a__from(mark(z0))), mark(x1)), MARK(x1))
   MARK(sel(from(sel(z0, z1)), x1)) -> c8(A__SEL(a__from(a__sel(mark(z0), mark(z1))), mark(x1)), MARK(x1))
   MARK(sel(from(cons(z0, z1)), x1)) -> c8(A__SEL(a__from(cons(mark(z0), z1)), mark(x1)), MARK(x1))
   MARK(sel(from(s(z0)), x1)) -> c8(A__SEL(a__from(s(mark(z0))), mark(x1)), MARK(x1))
   MARK(sel(from(0), x1)) -> c8(A__SEL(a__from(0), mark(x1)), MARK(x1))
   MARK(sel(from(x0), s(z0))) -> c8(MARK(s(z0)))
   MARK(sel(from(x0), x1)) -> c8(MARK(x1))
   MARK(sel(sel(x0, from(z0)), x2)) -> c8(A__SEL(a__sel(mark(x0), a__from(mark(z0))), mark(x2)), MARK(x2))
   MARK(sel(sel(x0, sel(z0, z1)), x2)) -> c8(A__SEL(a__sel(mark(x0), a__sel(mark(z0), mark(z1))), mark(x2)), MARK(x2))
   MARK(sel(sel(x0, cons(z0, z1)), x2)) -> c8(A__SEL(a__sel(mark(x0), cons(mark(z0), z1)), mark(x2)), MARK(x2))
   MARK(sel(sel(x0, s(z0)), x2)) -> c8(A__SEL(a__sel(mark(x0), s(mark(z0))), mark(x2)), MARK(x2))
   MARK(sel(sel(x0, 0), x2)) -> c8(A__SEL(a__sel(mark(x0), 0), mark(x2)), MARK(x2))
   MARK(sel(sel(from(z0), x1), x2)) -> c8(A__SEL(a__sel(a__from(mark(z0)), mark(x1)), mark(x2)), MARK(x2))
   MARK(sel(sel(sel(z0, z1), x1), x2)) -> c8(A__SEL(a__sel(a__sel(mark(z0), mark(z1)), mark(x1)), mark(x2)), MARK(x2))
   MARK(sel(sel(cons(z0, z1), x1), x2)) -> c8(A__SEL(a__sel(cons(mark(z0), z1), mark(x1)), mark(x2)), MARK(x2))
   MARK(sel(sel(s(z0), x1), x2)) -> c8(A__SEL(a__sel(s(mark(z0)), mark(x1)), mark(x2)), MARK(x2))
   MARK(sel(sel(0, x1), x2)) -> c8(A__SEL(a__sel(0, mark(x1)), mark(x2)), MARK(x2))
   MARK(sel(sel(x0, x1), s(z0))) -> c8(MARK(s(z0)))
   MARK(sel(sel(x0, x1), x2)) -> c8(MARK(x2))
   MARK(sel(s(x0), s(z0))) -> c8(A__SEL(s(mark(x0)), s(mark(z0))), MARK(s(z0)))
   MARK(sel(s(x0), 0)) -> c8(A__SEL(s(mark(x0)), 0), MARK(0))
   MARK(sel(s(from(z0)), x1)) -> c8(A__SEL(s(a__from(mark(z0))), mark(x1)), MARK(x1))
   MARK(sel(s(sel(z0, z1)), x1)) -> c8(A__SEL(s(a__sel(mark(z0), mark(z1))), mark(x1)), MARK(x1))
   MARK(sel(s(cons(z0, z1)), x1)) -> c8(A__SEL(s(cons(mark(z0), z1)), mark(x1)), MARK(x1))
   MARK(sel(s(s(z0)), x1)) -> c8(A__SEL(s(s(mark(z0))), mark(x1)), MARK(x1))
   MARK(sel(s(0), x1)) -> c8(A__SEL(s(0), mark(x1)), MARK(x1))
S tuples:
   A__FROM(z0) -> c(MARK(z0))
   A__SEL(0, cons(z0, z1)) -> c2(MARK(z0))
   MARK(from(z0)) -> c6(A__FROM(mark(z0)), MARK(z0))
   MARK(cons(z0, z1)) -> c9(MARK(z0))
   MARK(s(z0)) -> c10(MARK(z0))
   A__SEL(s(x0), cons(x1, s(z0))) -> c3(MARK(x0))
   A__SEL(s(x0), cons(x1, 0)) -> c3(MARK(x0))
   A__SEL(s(cons(z0, z1)), cons(x1, x2)) -> c3(MARK(cons(z0, z1)))
   A__SEL(s(x0), cons(x1, s(z0))) -> c4(MARK(s(z0)))
   A__SEL(s(cons(z0, z1)), cons(x1, x2)) -> c4(MARK(x2))
   MARK(sel(x0, s(z0))) -> c7(MARK(x0))
   MARK(sel(x0, 0)) -> c7(MARK(x0))
   MARK(sel(cons(z0, z1), x1)) -> c7(MARK(cons(z0, z1)))
   MARK(sel(0, x1)) -> c8(A__SEL(0, mark(x1)), MARK(x1))
   MARK(sel(x0, s(z0))) -> c8(MARK(s(z0)))
   MARK(sel(cons(z0, z1), x1)) -> c8(MARK(x1))
   A__SEL(s(x0), cons(x1, from(x2))) -> c3(A__SEL(mark(x0), cons(mark(mark(x2)), from(s(mark(x2))))), MARK(x0))
   A__SEL(s(x0), cons(x1, from(from(z0)))) -> c3(A__SEL(mark(x0), a__from(a__from(mark(z0)))), MARK(x0))
   A__SEL(s(x0), cons(x1, from(sel(z0, z1)))) -> c3(A__SEL(mark(x0), a__from(a__sel(mark(z0), mark(z1)))), MARK(x0))
   A__SEL(s(x0), cons(x1, from(cons(z0, z1)))) -> c3(A__SEL(mark(x0), a__from(cons(mark(z0), z1))), MARK(x0))
   A__SEL(s(x0), cons(x1, from(s(z0)))) -> c3(A__SEL(mark(x0), a__from(s(mark(z0)))), MARK(x0))
   A__SEL(s(x0), cons(x1, from(0))) -> c3(A__SEL(mark(x0), a__from(0)), MARK(x0))
   A__SEL(s(from(z0)), cons(x1, from(x2))) -> c3(A__SEL(a__from(mark(z0)), a__from(mark(x2))), MARK(from(z0)))
   A__SEL(s(sel(z0, z1)), cons(x1, from(x2))) -> c3(A__SEL(a__sel(mark(z0), mark(z1)), a__from(mark(x2))), MARK(sel(z0, z1)))
   A__SEL(s(s(z0)), cons(x1, from(x2))) -> c3(A__SEL(s(mark(z0)), a__from(mark(x2))), MARK(s(z0)))
   A__SEL(s(x0), cons(x1, from(x2))) -> c3(MARK(x0))
   A__SEL(s(cons(z0, z1)), cons(x1, from(x2))) -> c3(MARK(cons(z0, z1)))
   A__SEL(s(0), cons(x1, from(x2))) -> c3(A__SEL(0, a__from(mark(x2))))
   A__SEL(s(x0), cons(x1, sel(x2, from(z0)))) -> c3(A__SEL(mark(x0), a__sel(mark(x2), a__from(mark(z0)))), MARK(x0))
   A__SEL(s(x0), cons(x1, sel(x2, sel(z0, z1)))) -> c3(A__SEL(mark(x0), a__sel(mark(x2), a__sel(mark(z0), mark(z1)))), MARK(x0))
   A__SEL(s(x0), cons(x1, sel(x2, cons(z0, z1)))) -> c3(A__SEL(mark(x0), a__sel(mark(x2), cons(mark(z0), z1))), MARK(x0))
   A__SEL(s(x0), cons(x1, sel(x2, s(z0)))) -> c3(A__SEL(mark(x0), a__sel(mark(x2), s(mark(z0)))), MARK(x0))
   A__SEL(s(x0), cons(x1, sel(x2, 0))) -> c3(A__SEL(mark(x0), a__sel(mark(x2), 0)), MARK(x0))
   A__SEL(s(x0), cons(x1, sel(from(z0), x3))) -> c3(A__SEL(mark(x0), a__sel(a__from(mark(z0)), mark(x3))), MARK(x0))
   A__SEL(s(x0), cons(x1, sel(sel(z0, z1), x3))) -> c3(A__SEL(mark(x0), a__sel(a__sel(mark(z0), mark(z1)), mark(x3))), MARK(x0))
   A__SEL(s(x0), cons(x1, sel(cons(z0, z1), x3))) -> c3(A__SEL(mark(x0), a__sel(cons(mark(z0), z1), mark(x3))), MARK(x0))
   A__SEL(s(x0), cons(x1, sel(s(z0), x3))) -> c3(A__SEL(mark(x0), a__sel(s(mark(z0)), mark(x3))), MARK(x0))
   A__SEL(s(x0), cons(x1, sel(0, x3))) -> c3(A__SEL(mark(x0), a__sel(0, mark(x3))), MARK(x0))
   A__SEL(s(from(z0)), cons(x1, sel(x2, x3))) -> c3(A__SEL(a__from(mark(z0)), a__sel(mark(x2), mark(x3))), MARK(from(z0)))
   A__SEL(s(sel(z0, z1)), cons(x1, sel(x2, x3))) -> c3(A__SEL(a__sel(mark(z0), mark(z1)), a__sel(mark(x2), mark(x3))), MARK(sel(z0, z1)))
   A__SEL(s(s(z0)), cons(x1, sel(x2, x3))) -> c3(A__SEL(s(mark(z0)), a__sel(mark(x2), mark(x3))), MARK(s(z0)))
   A__SEL(s(x0), cons(x1, sel(x2, x3))) -> c3(MARK(x0))
   A__SEL(s(cons(z0, z1)), cons(x1, sel(x2, x3))) -> c3(MARK(cons(z0, z1)))
   A__SEL(s(0), cons(x1, sel(x2, x3))) -> c3(A__SEL(0, a__sel(mark(x2), mark(x3))))
   A__SEL(s(x0), cons(x1, cons(from(z0), x3))) -> c3(A__SEL(mark(x0), cons(a__from(mark(z0)), x3)), MARK(x0))
   A__SEL(s(x0), cons(x1, cons(sel(z0, z1), x3))) -> c3(A__SEL(mark(x0), cons(a__sel(mark(z0), mark(z1)), x3)), MARK(x0))
   A__SEL(s(x0), cons(x1, cons(cons(z0, z1), x3))) -> c3(A__SEL(mark(x0), cons(cons(mark(z0), z1), x3)), MARK(x0))
   A__SEL(s(x0), cons(x1, cons(s(z0), x3))) -> c3(A__SEL(mark(x0), cons(s(mark(z0)), x3)), MARK(x0))
   A__SEL(s(x0), cons(x1, cons(0, x3))) -> c3(A__SEL(mark(x0), cons(0, x3)), MARK(x0))
   A__SEL(s(from(z0)), cons(x1, cons(x2, x3))) -> c3(A__SEL(a__from(mark(z0)), cons(mark(x2), x3)), MARK(from(z0)))
   A__SEL(s(sel(z0, z1)), cons(x1, cons(x2, x3))) -> c3(A__SEL(a__sel(mark(z0), mark(z1)), cons(mark(x2), x3)), MARK(sel(z0, z1)))
   A__SEL(s(s(z0)), cons(x1, cons(x2, x3))) -> c3(A__SEL(s(mark(z0)), cons(mark(x2), x3)), MARK(s(z0)))
   A__SEL(s(cons(z0, z1)), cons(x1, cons(x2, x3))) -> c3(MARK(cons(z0, z1)))
   A__SEL(s(0), cons(x1, cons(x2, x3))) -> c3(A__SEL(0, cons(mark(x2), x3)))
   A__SEL(s(from(from(z0))), cons(x1, x2)) -> c3(A__SEL(a__from(a__from(mark(z0))), mark(x2)), MARK(from(from(z0))))
   A__SEL(s(from(sel(z0, z1))), cons(x1, x2)) -> c3(A__SEL(a__from(a__sel(mark(z0), mark(z1))), mark(x2)), MARK(from(sel(z0, z1))))
   A__SEL(s(from(cons(z0, z1))), cons(x1, x2)) -> c3(A__SEL(a__from(cons(mark(z0), z1)), mark(x2)), MARK(from(cons(z0, z1))))
   A__SEL(s(from(s(z0))), cons(x1, x2)) -> c3(A__SEL(a__from(s(mark(z0))), mark(x2)), MARK(from(s(z0))))
   A__SEL(s(from(0)), cons(x1, x2)) -> c3(A__SEL(a__from(0), mark(x2)), MARK(from(0)))
   A__SEL(s(from(x0)), cons(x1, x2)) -> c3(MARK(from(x0)))
   A__SEL(s(from(x0)), cons(x1, s(z0))) -> c3(MARK(from(x0)))
   A__SEL(s(from(x0)), cons(x1, 0)) -> c3(MARK(from(x0)))
   A__SEL(s(sel(x0, from(z0))), cons(x2, x3)) -> c3(A__SEL(a__sel(mark(x0), a__from(mark(z0))), mark(x3)), MARK(sel(x0, from(z0))))
   A__SEL(s(sel(x0, sel(z0, z1))), cons(x2, x3)) -> c3(A__SEL(a__sel(mark(x0), a__sel(mark(z0), mark(z1))), mark(x3)), MARK(sel(x0, sel(z0, z1))))
   A__SEL(s(sel(x0, cons(z0, z1))), cons(x2, x3)) -> c3(A__SEL(a__sel(mark(x0), cons(mark(z0), z1)), mark(x3)), MARK(sel(x0, cons(z0, z1))))
   A__SEL(s(sel(x0, s(z0))), cons(x2, x3)) -> c3(A__SEL(a__sel(mark(x0), s(mark(z0))), mark(x3)), MARK(sel(x0, s(z0))))
   A__SEL(s(sel(x0, 0)), cons(x2, x3)) -> c3(A__SEL(a__sel(mark(x0), 0), mark(x3)), MARK(sel(x0, 0)))
   A__SEL(s(sel(from(z0), x1)), cons(x2, x3)) -> c3(A__SEL(a__sel(a__from(mark(z0)), mark(x1)), mark(x3)), MARK(sel(from(z0), x1)))
   A__SEL(s(sel(sel(z0, z1), x1)), cons(x2, x3)) -> c3(A__SEL(a__sel(a__sel(mark(z0), mark(z1)), mark(x1)), mark(x3)), MARK(sel(sel(z0, z1), x1)))
   A__SEL(s(sel(cons(z0, z1), x1)), cons(x2, x3)) -> c3(A__SEL(a__sel(cons(mark(z0), z1), mark(x1)), mark(x3)), MARK(sel(cons(z0, z1), x1)))
   A__SEL(s(sel(s(z0), x1)), cons(x2, x3)) -> c3(A__SEL(a__sel(s(mark(z0)), mark(x1)), mark(x3)), MARK(sel(s(z0), x1)))
   A__SEL(s(sel(0, x1)), cons(x2, x3)) -> c3(A__SEL(a__sel(0, mark(x1)), mark(x3)), MARK(sel(0, x1)))
   A__SEL(s(sel(x0, x1)), cons(x2, s(z0))) -> c3(MARK(sel(x0, x1)))
   A__SEL(s(sel(x0, x1)), cons(x2, 0)) -> c3(MARK(sel(x0, x1)))
   A__SEL(s(sel(x0, x1)), cons(x2, x3)) -> c3(MARK(sel(x0, x1)))
   A__SEL(s(s(from(z0))), cons(x1, x2)) -> c3(A__SEL(s(a__from(mark(z0))), mark(x2)), MARK(s(from(z0))))
   A__SEL(s(s(sel(z0, z1))), cons(x1, x2)) -> c3(A__SEL(s(a__sel(mark(z0), mark(z1))), mark(x2)), MARK(s(sel(z0, z1))))
   A__SEL(s(s(cons(z0, z1))), cons(x1, x2)) -> c3(A__SEL(s(cons(mark(z0), z1)), mark(x2)), MARK(s(cons(z0, z1))))
   A__SEL(s(s(s(z0))), cons(x1, x2)) -> c3(A__SEL(s(s(mark(z0))), mark(x2)), MARK(s(s(z0))))
   A__SEL(s(s(0)), cons(x1, x2)) -> c3(A__SEL(s(0), mark(x2)), MARK(s(0)))
   A__SEL(s(s(x0)), cons(x1, x2)) -> c3(MARK(s(x0)))
   A__SEL(s(s(x0)), cons(x1, s(z0))) -> c3(MARK(s(x0)))
   A__SEL(s(s(x0)), cons(x1, 0)) -> c3(MARK(s(x0)))
   A__SEL(s(x0), cons(x1, from(x2))) -> c4(A__SEL(mark(x0), cons(mark(mark(x2)), from(s(mark(x2))))), MARK(from(x2)))
   A__SEL(s(x0), cons(x1, from(from(z0)))) -> c4(A__SEL(mark(x0), a__from(a__from(mark(z0)))), MARK(from(from(z0))))
   A__SEL(s(x0), cons(x1, from(sel(z0, z1)))) -> c4(A__SEL(mark(x0), a__from(a__sel(mark(z0), mark(z1)))), MARK(from(sel(z0, z1))))
   A__SEL(s(x0), cons(x1, from(cons(z0, z1)))) -> c4(A__SEL(mark(x0), a__from(cons(mark(z0), z1))), MARK(from(cons(z0, z1))))
   A__SEL(s(x0), cons(x1, from(s(z0)))) -> c4(A__SEL(mark(x0), a__from(s(mark(z0)))), MARK(from(s(z0))))
   A__SEL(s(x0), cons(x1, from(0))) -> c4(A__SEL(mark(x0), a__from(0)), MARK(from(0)))
   A__SEL(s(from(z0)), cons(x1, from(x2))) -> c4(A__SEL(a__from(mark(z0)), a__from(mark(x2))), MARK(from(x2)))
   A__SEL(s(sel(z0, z1)), cons(x1, from(x2))) -> c4(A__SEL(a__sel(mark(z0), mark(z1)), a__from(mark(x2))), MARK(from(x2)))
   A__SEL(s(s(z0)), cons(x1, from(x2))) -> c4(A__SEL(s(mark(z0)), a__from(mark(x2))), MARK(from(x2)))
   A__SEL(s(0), cons(x1, from(x2))) -> c4(A__SEL(0, a__from(mark(x2))), MARK(from(x2)))
   A__SEL(s(x0), cons(x1, from(x2))) -> c4(MARK(from(x2)))
   A__SEL(s(cons(z0, z1)), cons(x1, from(x2))) -> c4(MARK(from(x2)))
   A__SEL(s(x0), cons(x1, sel(x2, from(z0)))) -> c4(A__SEL(mark(x0), a__sel(mark(x2), a__from(mark(z0)))), MARK(sel(x2, from(z0))))
   A__SEL(s(x0), cons(x1, sel(x2, sel(z0, z1)))) -> c4(A__SEL(mark(x0), a__sel(mark(x2), a__sel(mark(z0), mark(z1)))), MARK(sel(x2, sel(z0, z1))))
   A__SEL(s(x0), cons(x1, sel(x2, cons(z0, z1)))) -> c4(A__SEL(mark(x0), a__sel(mark(x2), cons(mark(z0), z1))), MARK(sel(x2, cons(z0, z1))))
   A__SEL(s(x0), cons(x1, sel(x2, s(z0)))) -> c4(A__SEL(mark(x0), a__sel(mark(x2), s(mark(z0)))), MARK(sel(x2, s(z0))))
   A__SEL(s(x0), cons(x1, sel(x2, 0))) -> c4(A__SEL(mark(x0), a__sel(mark(x2), 0)), MARK(sel(x2, 0)))
   A__SEL(s(x0), cons(x1, sel(from(z0), x3))) -> c4(A__SEL(mark(x0), a__sel(a__from(mark(z0)), mark(x3))), MARK(sel(from(z0), x3)))
   A__SEL(s(x0), cons(x1, sel(sel(z0, z1), x3))) -> c4(A__SEL(mark(x0), a__sel(a__sel(mark(z0), mark(z1)), mark(x3))), MARK(sel(sel(z0, z1), x3)))
   A__SEL(s(x0), cons(x1, sel(cons(z0, z1), x3))) -> c4(A__SEL(mark(x0), a__sel(cons(mark(z0), z1), mark(x3))), MARK(sel(cons(z0, z1), x3)))
   A__SEL(s(x0), cons(x1, sel(s(z0), x3))) -> c4(A__SEL(mark(x0), a__sel(s(mark(z0)), mark(x3))), MARK(sel(s(z0), x3)))
   A__SEL(s(x0), cons(x1, sel(0, x3))) -> c4(A__SEL(mark(x0), a__sel(0, mark(x3))), MARK(sel(0, x3)))
   A__SEL(s(from(z0)), cons(x1, sel(x2, x3))) -> c4(A__SEL(a__from(mark(z0)), a__sel(mark(x2), mark(x3))), MARK(sel(x2, x3)))
   A__SEL(s(sel(z0, z1)), cons(x1, sel(x2, x3))) -> c4(A__SEL(a__sel(mark(z0), mark(z1)), a__sel(mark(x2), mark(x3))), MARK(sel(x2, x3)))
   A__SEL(s(s(z0)), cons(x1, sel(x2, x3))) -> c4(A__SEL(s(mark(z0)), a__sel(mark(x2), mark(x3))), MARK(sel(x2, x3)))
   A__SEL(s(0), cons(x1, sel(x2, x3))) -> c4(A__SEL(0, a__sel(mark(x2), mark(x3))), MARK(sel(x2, x3)))
   A__SEL(s(x0), cons(x1, sel(x2, x3))) -> c4(MARK(sel(x2, x3)))
   A__SEL(s(cons(z0, z1)), cons(x1, sel(x2, x3))) -> c4(MARK(sel(x2, x3)))
   A__SEL(s(x0), cons(x1, cons(from(z0), x3))) -> c4(A__SEL(mark(x0), cons(a__from(mark(z0)), x3)), MARK(cons(from(z0), x3)))
   A__SEL(s(x0), cons(x1, cons(sel(z0, z1), x3))) -> c4(A__SEL(mark(x0), cons(a__sel(mark(z0), mark(z1)), x3)), MARK(cons(sel(z0, z1), x3)))
   A__SEL(s(x0), cons(x1, cons(cons(z0, z1), x3))) -> c4(A__SEL(mark(x0), cons(cons(mark(z0), z1), x3)), MARK(cons(cons(z0, z1), x3)))
   A__SEL(s(x0), cons(x1, cons(s(z0), x3))) -> c4(A__SEL(mark(x0), cons(s(mark(z0)), x3)), MARK(cons(s(z0), x3)))
   A__SEL(s(x0), cons(x1, cons(0, x3))) -> c4(A__SEL(mark(x0), cons(0, x3)), MARK(cons(0, x3)))
   A__SEL(s(from(z0)), cons(x1, cons(x2, x3))) -> c4(A__SEL(a__from(mark(z0)), cons(mark(x2), x3)), MARK(cons(x2, x3)))
   A__SEL(s(sel(z0, z1)), cons(x1, cons(x2, x3))) -> c4(A__SEL(a__sel(mark(z0), mark(z1)), cons(mark(x2), x3)), MARK(cons(x2, x3)))
   A__SEL(s(s(z0)), cons(x1, cons(x2, x3))) -> c4(A__SEL(s(mark(z0)), cons(mark(x2), x3)), MARK(cons(x2, x3)))
   A__SEL(s(0), cons(x1, cons(x2, x3))) -> c4(A__SEL(0, cons(mark(x2), x3)), MARK(cons(x2, x3)))
   A__SEL(s(x0), cons(x1, cons(x2, x3))) -> c4(MARK(cons(x2, x3)))
   A__SEL(s(cons(z0, z1)), cons(x1, cons(x2, x3))) -> c4(MARK(cons(x2, x3)))
   A__SEL(s(from(from(z0))), cons(x1, x2)) -> c4(A__SEL(a__from(a__from(mark(z0))), mark(x2)), MARK(x2))
   A__SEL(s(from(sel(z0, z1))), cons(x1, x2)) -> c4(A__SEL(a__from(a__sel(mark(z0), mark(z1))), mark(x2)), MARK(x2))
   A__SEL(s(from(cons(z0, z1))), cons(x1, x2)) -> c4(A__SEL(a__from(cons(mark(z0), z1)), mark(x2)), MARK(x2))
   A__SEL(s(from(s(z0))), cons(x1, x2)) -> c4(A__SEL(a__from(s(mark(z0))), mark(x2)), MARK(x2))
   A__SEL(s(from(0)), cons(x1, x2)) -> c4(A__SEL(a__from(0), mark(x2)), MARK(x2))
   A__SEL(s(from(x0)), cons(x1, s(z0))) -> c4(MARK(s(z0)))
   A__SEL(s(from(x0)), cons(x1, x2)) -> c4(MARK(x2))
   A__SEL(s(sel(x0, from(z0))), cons(x2, x3)) -> c4(A__SEL(a__sel(mark(x0), a__from(mark(z0))), mark(x3)), MARK(x3))
   A__SEL(s(sel(x0, sel(z0, z1))), cons(x2, x3)) -> c4(A__SEL(a__sel(mark(x0), a__sel(mark(z0), mark(z1))), mark(x3)), MARK(x3))
   A__SEL(s(sel(x0, cons(z0, z1))), cons(x2, x3)) -> c4(A__SEL(a__sel(mark(x0), cons(mark(z0), z1)), mark(x3)), MARK(x3))
   A__SEL(s(sel(x0, s(z0))), cons(x2, x3)) -> c4(A__SEL(a__sel(mark(x0), s(mark(z0))), mark(x3)), MARK(x3))
   A__SEL(s(sel(x0, 0)), cons(x2, x3)) -> c4(A__SEL(a__sel(mark(x0), 0), mark(x3)), MARK(x3))
   A__SEL(s(sel(from(z0), x1)), cons(x2, x3)) -> c4(A__SEL(a__sel(a__from(mark(z0)), mark(x1)), mark(x3)), MARK(x3))
   A__SEL(s(sel(sel(z0, z1), x1)), cons(x2, x3)) -> c4(A__SEL(a__sel(a__sel(mark(z0), mark(z1)), mark(x1)), mark(x3)), MARK(x3))
   A__SEL(s(sel(cons(z0, z1), x1)), cons(x2, x3)) -> c4(A__SEL(a__sel(cons(mark(z0), z1), mark(x1)), mark(x3)), MARK(x3))
   A__SEL(s(sel(s(z0), x1)), cons(x2, x3)) -> c4(A__SEL(a__sel(s(mark(z0)), mark(x1)), mark(x3)), MARK(x3))
   A__SEL(s(sel(0, x1)), cons(x2, x3)) -> c4(A__SEL(a__sel(0, mark(x1)), mark(x3)), MARK(x3))
   A__SEL(s(sel(x0, x1)), cons(x2, s(z0))) -> c4(MARK(s(z0)))
   A__SEL(s(sel(x0, x1)), cons(x2, x3)) -> c4(MARK(x3))
   A__SEL(s(s(from(z0))), cons(x1, x2)) -> c4(A__SEL(s(a__from(mark(z0))), mark(x2)), MARK(x2))
   A__SEL(s(s(sel(z0, z1))), cons(x1, x2)) -> c4(A__SEL(s(a__sel(mark(z0), mark(z1))), mark(x2)), MARK(x2))
   A__SEL(s(s(cons(z0, z1))), cons(x1, x2)) -> c4(A__SEL(s(cons(mark(z0), z1)), mark(x2)), MARK(x2))
   A__SEL(s(s(s(z0))), cons(x1, x2)) -> c4(A__SEL(s(s(mark(z0))), mark(x2)), MARK(x2))
   A__SEL(s(s(0)), cons(x1, x2)) -> c4(A__SEL(s(0), mark(x2)), MARK(x2))
   A__SEL(s(s(x0)), cons(x1, s(z0))) -> c4(MARK(s(z0)))
   A__SEL(s(0), cons(x0, s(z0))) -> c4(MARK(s(z0)))
   MARK(sel(x0, from(x1))) -> c7(A__SEL(mark(x0), cons(mark(mark(x1)), from(s(mark(x1))))), MARK(x0))
   MARK(sel(x0, from(from(z0)))) -> c7(A__SEL(mark(x0), a__from(a__from(mark(z0)))), MARK(x0))
   MARK(sel(x0, from(sel(z0, z1)))) -> c7(A__SEL(mark(x0), a__from(a__sel(mark(z0), mark(z1)))), MARK(x0))
   MARK(sel(x0, from(cons(z0, z1)))) -> c7(A__SEL(mark(x0), a__from(cons(mark(z0), z1))), MARK(x0))
   MARK(sel(x0, from(s(z0)))) -> c7(A__SEL(mark(x0), a__from(s(mark(z0)))), MARK(x0))
   MARK(sel(x0, from(0))) -> c7(A__SEL(mark(x0), a__from(0)), MARK(x0))
   MARK(sel(from(z0), from(x1))) -> c7(A__SEL(a__from(mark(z0)), a__from(mark(x1))), MARK(from(z0)))
   MARK(sel(sel(z0, z1), from(x1))) -> c7(A__SEL(a__sel(mark(z0), mark(z1)), a__from(mark(x1))), MARK(sel(z0, z1)))
   MARK(sel(s(z0), from(x1))) -> c7(A__SEL(s(mark(z0)), a__from(mark(x1))), MARK(s(z0)))
   MARK(sel(x0, from(x1))) -> c7(MARK(x0))
   MARK(sel(cons(z0, z1), from(x1))) -> c7(MARK(cons(z0, z1)))
   MARK(sel(0, from(x1))) -> c7(A__SEL(0, a__from(mark(x1))))
   MARK(sel(x0, sel(x1, from(z0)))) -> c7(A__SEL(mark(x0), a__sel(mark(x1), a__from(mark(z0)))), MARK(x0))
   MARK(sel(x0, sel(x1, sel(z0, z1)))) -> c7(A__SEL(mark(x0), a__sel(mark(x1), a__sel(mark(z0), mark(z1)))), MARK(x0))
   MARK(sel(x0, sel(x1, cons(z0, z1)))) -> c7(A__SEL(mark(x0), a__sel(mark(x1), cons(mark(z0), z1))), MARK(x0))
   MARK(sel(x0, sel(x1, s(z0)))) -> c7(A__SEL(mark(x0), a__sel(mark(x1), s(mark(z0)))), MARK(x0))
   MARK(sel(x0, sel(x1, 0))) -> c7(A__SEL(mark(x0), a__sel(mark(x1), 0)), MARK(x0))
   MARK(sel(x0, sel(from(z0), x2))) -> c7(A__SEL(mark(x0), a__sel(a__from(mark(z0)), mark(x2))), MARK(x0))
   MARK(sel(x0, sel(sel(z0, z1), x2))) -> c7(A__SEL(mark(x0), a__sel(a__sel(mark(z0), mark(z1)), mark(x2))), MARK(x0))
   MARK(sel(x0, sel(cons(z0, z1), x2))) -> c7(A__SEL(mark(x0), a__sel(cons(mark(z0), z1), mark(x2))), MARK(x0))
   MARK(sel(x0, sel(s(z0), x2))) -> c7(A__SEL(mark(x0), a__sel(s(mark(z0)), mark(x2))), MARK(x0))
   MARK(sel(x0, sel(0, x2))) -> c7(A__SEL(mark(x0), a__sel(0, mark(x2))), MARK(x0))
   MARK(sel(from(z0), sel(x1, x2))) -> c7(A__SEL(a__from(mark(z0)), a__sel(mark(x1), mark(x2))), MARK(from(z0)))
   MARK(sel(sel(z0, z1), sel(x1, x2))) -> c7(A__SEL(a__sel(mark(z0), mark(z1)), a__sel(mark(x1), mark(x2))), MARK(sel(z0, z1)))
   MARK(sel(s(z0), sel(x1, x2))) -> c7(A__SEL(s(mark(z0)), a__sel(mark(x1), mark(x2))), MARK(s(z0)))
   MARK(sel(x0, sel(x1, x2))) -> c7(MARK(x0))
   MARK(sel(cons(z0, z1), sel(x1, x2))) -> c7(MARK(cons(z0, z1)))
   MARK(sel(0, sel(x1, x2))) -> c7(A__SEL(0, a__sel(mark(x1), mark(x2))))
   MARK(sel(x0, cons(from(z0), x2))) -> c7(A__SEL(mark(x0), cons(a__from(mark(z0)), x2)), MARK(x0))
   MARK(sel(x0, cons(sel(z0, z1), x2))) -> c7(A__SEL(mark(x0), cons(a__sel(mark(z0), mark(z1)), x2)), MARK(x0))
   MARK(sel(x0, cons(cons(z0, z1), x2))) -> c7(A__SEL(mark(x0), cons(cons(mark(z0), z1), x2)), MARK(x0))
   MARK(sel(x0, cons(s(z0), x2))) -> c7(A__SEL(mark(x0), cons(s(mark(z0)), x2)), MARK(x0))
   MARK(sel(x0, cons(0, x2))) -> c7(A__SEL(mark(x0), cons(0, x2)), MARK(x0))
   MARK(sel(from(z0), cons(x1, x2))) -> c7(A__SEL(a__from(mark(z0)), cons(mark(x1), x2)), MARK(from(z0)))
   MARK(sel(sel(z0, z1), cons(x1, x2))) -> c7(A__SEL(a__sel(mark(z0), mark(z1)), cons(mark(x1), x2)), MARK(sel(z0, z1)))
   MARK(sel(s(z0), cons(x1, x2))) -> c7(A__SEL(s(mark(z0)), cons(mark(x1), x2)), MARK(s(z0)))
   MARK(sel(cons(z0, z1), cons(x1, x2))) -> c7(MARK(cons(z0, z1)))
   MARK(sel(0, cons(x1, x2))) -> c7(A__SEL(0, cons(mark(x1), x2)))
   MARK(sel(from(from(z0)), x1)) -> c7(A__SEL(a__from(a__from(mark(z0))), mark(x1)), MARK(from(from(z0))))
   MARK(sel(from(sel(z0, z1)), x1)) -> c7(A__SEL(a__from(a__sel(mark(z0), mark(z1))), mark(x1)), MARK(from(sel(z0, z1))))
   MARK(sel(from(cons(z0, z1)), x1)) -> c7(A__SEL(a__from(cons(mark(z0), z1)), mark(x1)), MARK(from(cons(z0, z1))))
   MARK(sel(from(s(z0)), x1)) -> c7(A__SEL(a__from(s(mark(z0))), mark(x1)), MARK(from(s(z0))))
   MARK(sel(from(0), x1)) -> c7(A__SEL(a__from(0), mark(x1)), MARK(from(0)))
   MARK(sel(from(x0), x1)) -> c7(MARK(from(x0)))
   MARK(sel(from(x0), s(z0))) -> c7(MARK(from(x0)))
   MARK(sel(from(x0), 0)) -> c7(MARK(from(x0)))
   MARK(sel(sel(x0, from(z0)), x2)) -> c7(A__SEL(a__sel(mark(x0), a__from(mark(z0))), mark(x2)), MARK(sel(x0, from(z0))))
   MARK(sel(sel(x0, sel(z0, z1)), x2)) -> c7(A__SEL(a__sel(mark(x0), a__sel(mark(z0), mark(z1))), mark(x2)), MARK(sel(x0, sel(z0, z1))))
   MARK(sel(sel(x0, cons(z0, z1)), x2)) -> c7(A__SEL(a__sel(mark(x0), cons(mark(z0), z1)), mark(x2)), MARK(sel(x0, cons(z0, z1))))
   MARK(sel(sel(x0, s(z0)), x2)) -> c7(A__SEL(a__sel(mark(x0), s(mark(z0))), mark(x2)), MARK(sel(x0, s(z0))))
   MARK(sel(sel(x0, 0), x2)) -> c7(A__SEL(a__sel(mark(x0), 0), mark(x2)), MARK(sel(x0, 0)))
   MARK(sel(sel(from(z0), x1), x2)) -> c7(A__SEL(a__sel(a__from(mark(z0)), mark(x1)), mark(x2)), MARK(sel(from(z0), x1)))
   MARK(sel(sel(sel(z0, z1), x1), x2)) -> c7(A__SEL(a__sel(a__sel(mark(z0), mark(z1)), mark(x1)), mark(x2)), MARK(sel(sel(z0, z1), x1)))
   MARK(sel(sel(cons(z0, z1), x1), x2)) -> c7(A__SEL(a__sel(cons(mark(z0), z1), mark(x1)), mark(x2)), MARK(sel(cons(z0, z1), x1)))
   MARK(sel(sel(s(z0), x1), x2)) -> c7(A__SEL(a__sel(s(mark(z0)), mark(x1)), mark(x2)), MARK(sel(s(z0), x1)))
   MARK(sel(sel(0, x1), x2)) -> c7(A__SEL(a__sel(0, mark(x1)), mark(x2)), MARK(sel(0, x1)))
   MARK(sel(sel(x0, x1), s(z0))) -> c7(MARK(sel(x0, x1)))
   MARK(sel(sel(x0, x1), 0)) -> c7(MARK(sel(x0, x1)))
   MARK(sel(sel(x0, x1), x2)) -> c7(MARK(sel(x0, x1)))
   MARK(sel(s(from(z0)), x1)) -> c7(A__SEL(s(a__from(mark(z0))), mark(x1)), MARK(s(from(z0))))
   MARK(sel(s(sel(z0, z1)), x1)) -> c7(A__SEL(s(a__sel(mark(z0), mark(z1))), mark(x1)), MARK(s(sel(z0, z1))))
   MARK(sel(s(cons(z0, z1)), x1)) -> c7(A__SEL(s(cons(mark(z0), z1)), mark(x1)), MARK(s(cons(z0, z1))))
   MARK(sel(s(s(z0)), x1)) -> c7(A__SEL(s(s(mark(z0))), mark(x1)), MARK(s(s(z0))))
   MARK(sel(s(0), x1)) -> c7(A__SEL(s(0), mark(x1)), MARK(s(0)))
   MARK(sel(s(x0), x1)) -> c7(MARK(s(x0)))
   MARK(sel(s(x0), s(z0))) -> c7(MARK(s(x0)))
   MARK(sel(s(x0), 0)) -> c7(MARK(s(x0)))
   MARK(sel(x0, from(x1))) -> c8(A__SEL(mark(x0), cons(mark(mark(x1)), from(s(mark(x1))))), MARK(from(x1)))
   MARK(sel(x0, from(from(z0)))) -> c8(A__SEL(mark(x0), a__from(a__from(mark(z0)))), MARK(from(from(z0))))
   MARK(sel(x0, from(sel(z0, z1)))) -> c8(A__SEL(mark(x0), a__from(a__sel(mark(z0), mark(z1)))), MARK(from(sel(z0, z1))))
   MARK(sel(x0, from(cons(z0, z1)))) -> c8(A__SEL(mark(x0), a__from(cons(mark(z0), z1))), MARK(from(cons(z0, z1))))
   MARK(sel(x0, from(s(z0)))) -> c8(A__SEL(mark(x0), a__from(s(mark(z0)))), MARK(from(s(z0))))
   MARK(sel(x0, from(0))) -> c8(A__SEL(mark(x0), a__from(0)), MARK(from(0)))
   MARK(sel(from(z0), from(x1))) -> c8(A__SEL(a__from(mark(z0)), a__from(mark(x1))), MARK(from(x1)))
   MARK(sel(sel(z0, z1), from(x1))) -> c8(A__SEL(a__sel(mark(z0), mark(z1)), a__from(mark(x1))), MARK(from(x1)))
   MARK(sel(s(z0), from(x1))) -> c8(A__SEL(s(mark(z0)), a__from(mark(x1))), MARK(from(x1)))
   MARK(sel(0, from(x1))) -> c8(A__SEL(0, a__from(mark(x1))), MARK(from(x1)))
   MARK(sel(x0, from(x1))) -> c8(MARK(from(x1)))
   MARK(sel(cons(z0, z1), from(x1))) -> c8(MARK(from(x1)))
   MARK(sel(x0, sel(x1, from(z0)))) -> c8(A__SEL(mark(x0), a__sel(mark(x1), a__from(mark(z0)))), MARK(sel(x1, from(z0))))
   MARK(sel(x0, sel(x1, sel(z0, z1)))) -> c8(A__SEL(mark(x0), a__sel(mark(x1), a__sel(mark(z0), mark(z1)))), MARK(sel(x1, sel(z0, z1))))
   MARK(sel(x0, sel(x1, cons(z0, z1)))) -> c8(A__SEL(mark(x0), a__sel(mark(x1), cons(mark(z0), z1))), MARK(sel(x1, cons(z0, z1))))
   MARK(sel(x0, sel(x1, s(z0)))) -> c8(A__SEL(mark(x0), a__sel(mark(x1), s(mark(z0)))), MARK(sel(x1, s(z0))))
   MARK(sel(x0, sel(x1, 0))) -> c8(A__SEL(mark(x0), a__sel(mark(x1), 0)), MARK(sel(x1, 0)))
   MARK(sel(x0, sel(from(z0), x2))) -> c8(A__SEL(mark(x0), a__sel(a__from(mark(z0)), mark(x2))), MARK(sel(from(z0), x2)))
   MARK(sel(x0, sel(sel(z0, z1), x2))) -> c8(A__SEL(mark(x0), a__sel(a__sel(mark(z0), mark(z1)), mark(x2))), MARK(sel(sel(z0, z1), x2)))
   MARK(sel(x0, sel(cons(z0, z1), x2))) -> c8(A__SEL(mark(x0), a__sel(cons(mark(z0), z1), mark(x2))), MARK(sel(cons(z0, z1), x2)))
   MARK(sel(x0, sel(s(z0), x2))) -> c8(A__SEL(mark(x0), a__sel(s(mark(z0)), mark(x2))), MARK(sel(s(z0), x2)))
   MARK(sel(x0, sel(0, x2))) -> c8(A__SEL(mark(x0), a__sel(0, mark(x2))), MARK(sel(0, x2)))
   MARK(sel(from(z0), sel(x1, x2))) -> c8(A__SEL(a__from(mark(z0)), a__sel(mark(x1), mark(x2))), MARK(sel(x1, x2)))
   MARK(sel(sel(z0, z1), sel(x1, x2))) -> c8(A__SEL(a__sel(mark(z0), mark(z1)), a__sel(mark(x1), mark(x2))), MARK(sel(x1, x2)))
   MARK(sel(s(z0), sel(x1, x2))) -> c8(A__SEL(s(mark(z0)), a__sel(mark(x1), mark(x2))), MARK(sel(x1, x2)))
   MARK(sel(0, sel(x1, x2))) -> c8(A__SEL(0, a__sel(mark(x1), mark(x2))), MARK(sel(x1, x2)))
   MARK(sel(x0, sel(x1, x2))) -> c8(MARK(sel(x1, x2)))
   MARK(sel(cons(z0, z1), sel(x1, x2))) -> c8(MARK(sel(x1, x2)))
   MARK(sel(x0, cons(from(z0), x2))) -> c8(A__SEL(mark(x0), cons(a__from(mark(z0)), x2)), MARK(cons(from(z0), x2)))
   MARK(sel(x0, cons(sel(z0, z1), x2))) -> c8(A__SEL(mark(x0), cons(a__sel(mark(z0), mark(z1)), x2)), MARK(cons(sel(z0, z1), x2)))
   MARK(sel(x0, cons(cons(z0, z1), x2))) -> c8(A__SEL(mark(x0), cons(cons(mark(z0), z1), x2)), MARK(cons(cons(z0, z1), x2)))
   MARK(sel(x0, cons(s(z0), x2))) -> c8(A__SEL(mark(x0), cons(s(mark(z0)), x2)), MARK(cons(s(z0), x2)))
   MARK(sel(x0, cons(0, x2))) -> c8(A__SEL(mark(x0), cons(0, x2)), MARK(cons(0, x2)))
   MARK(sel(from(z0), cons(x1, x2))) -> c8(A__SEL(a__from(mark(z0)), cons(mark(x1), x2)), MARK(cons(x1, x2)))
   MARK(sel(sel(z0, z1), cons(x1, x2))) -> c8(A__SEL(a__sel(mark(z0), mark(z1)), cons(mark(x1), x2)), MARK(cons(x1, x2)))
   MARK(sel(s(z0), cons(x1, x2))) -> c8(A__SEL(s(mark(z0)), cons(mark(x1), x2)), MARK(cons(x1, x2)))
   MARK(sel(0, cons(x1, x2))) -> c8(A__SEL(0, cons(mark(x1), x2)), MARK(cons(x1, x2)))
   MARK(sel(x0, cons(x1, x2))) -> c8(MARK(cons(x1, x2)))
   MARK(sel(cons(z0, z1), cons(x1, x2))) -> c8(MARK(cons(x1, x2)))
   MARK(sel(from(from(z0)), x1)) -> c8(A__SEL(a__from(a__from(mark(z0))), mark(x1)), MARK(x1))
   MARK(sel(from(sel(z0, z1)), x1)) -> c8(A__SEL(a__from(a__sel(mark(z0), mark(z1))), mark(x1)), MARK(x1))
   MARK(sel(from(cons(z0, z1)), x1)) -> c8(A__SEL(a__from(cons(mark(z0), z1)), mark(x1)), MARK(x1))
   MARK(sel(from(s(z0)), x1)) -> c8(A__SEL(a__from(s(mark(z0))), mark(x1)), MARK(x1))
   MARK(sel(from(0), x1)) -> c8(A__SEL(a__from(0), mark(x1)), MARK(x1))
   MARK(sel(from(x0), s(z0))) -> c8(MARK(s(z0)))
   MARK(sel(from(x0), x1)) -> c8(MARK(x1))
   MARK(sel(sel(x0, from(z0)), x2)) -> c8(A__SEL(a__sel(mark(x0), a__from(mark(z0))), mark(x2)), MARK(x2))
   MARK(sel(sel(x0, sel(z0, z1)), x2)) -> c8(A__SEL(a__sel(mark(x0), a__sel(mark(z0), mark(z1))), mark(x2)), MARK(x2))
   MARK(sel(sel(x0, cons(z0, z1)), x2)) -> c8(A__SEL(a__sel(mark(x0), cons(mark(z0), z1)), mark(x2)), MARK(x2))
   MARK(sel(sel(x0, s(z0)), x2)) -> c8(A__SEL(a__sel(mark(x0), s(mark(z0))), mark(x2)), MARK(x2))
   MARK(sel(sel(x0, 0), x2)) -> c8(A__SEL(a__sel(mark(x0), 0), mark(x2)), MARK(x2))
   MARK(sel(sel(from(z0), x1), x2)) -> c8(A__SEL(a__sel(a__from(mark(z0)), mark(x1)), mark(x2)), MARK(x2))
   MARK(sel(sel(sel(z0, z1), x1), x2)) -> c8(A__SEL(a__sel(a__sel(mark(z0), mark(z1)), mark(x1)), mark(x2)), MARK(x2))
   MARK(sel(sel(cons(z0, z1), x1), x2)) -> c8(A__SEL(a__sel(cons(mark(z0), z1), mark(x1)), mark(x2)), MARK(x2))
   MARK(sel(sel(s(z0), x1), x2)) -> c8(A__SEL(a__sel(s(mark(z0)), mark(x1)), mark(x2)), MARK(x2))
   MARK(sel(sel(0, x1), x2)) -> c8(A__SEL(a__sel(0, mark(x1)), mark(x2)), MARK(x2))
   MARK(sel(sel(x0, x1), s(z0))) -> c8(MARK(s(z0)))
   MARK(sel(sel(x0, x1), x2)) -> c8(MARK(x2))
   MARK(sel(s(x0), s(z0))) -> c8(A__SEL(s(mark(x0)), s(mark(z0))), MARK(s(z0)))
   MARK(sel(s(x0), 0)) -> c8(A__SEL(s(mark(x0)), 0), MARK(0))
   MARK(sel(s(from(z0)), x1)) -> c8(A__SEL(s(a__from(mark(z0))), mark(x1)), MARK(x1))
   MARK(sel(s(sel(z0, z1)), x1)) -> c8(A__SEL(s(a__sel(mark(z0), mark(z1))), mark(x1)), MARK(x1))
   MARK(sel(s(cons(z0, z1)), x1)) -> c8(A__SEL(s(cons(mark(z0), z1)), mark(x1)), MARK(x1))
   MARK(sel(s(s(z0)), x1)) -> c8(A__SEL(s(s(mark(z0))), mark(x1)), MARK(x1))
   MARK(sel(s(0), x1)) -> c8(A__SEL(s(0), mark(x1)), MARK(x1))
K tuples:none
Defined Rule Symbols:   a__from_1, a__sel_2, mark_1

Defined Pair Symbols:   A__FROM_1, A__SEL_2, MARK_1

Compound Symbols:   c_1, c2_1, c6_2, c9_1, c10_1, c3_1, c4_1, c7_1, c8_2, c8_1, c3_2, c4_2, c7_2


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

(195) CdtLeafRemovalProof (BOTH BOUNDS(ID, ID))
Removed 1 trailing nodes:
   MARK(sel(s(x0), 0)) -> c8(A__SEL(s(mark(x0)), 0), MARK(0))

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

(196)
Obligation:
Complexity Dependency Tuples Problem

Rules:
   a__from(z0) -> cons(mark(z0), from(s(z0)))
   a__from(z0) -> from(z0)
   a__sel(0, cons(z0, z1)) -> mark(z0)
   a__sel(s(z0), cons(z1, z2)) -> a__sel(mark(z0), mark(z2))
   a__sel(z0, z1) -> sel(z0, z1)
   mark(from(z0)) -> a__from(mark(z0))
   mark(sel(z0, z1)) -> a__sel(mark(z0), mark(z1))
   mark(cons(z0, z1)) -> cons(mark(z0), z1)
   mark(s(z0)) -> s(mark(z0))
   mark(0) -> 0
Tuples:
   A__FROM(z0) -> c(MARK(z0))
   A__SEL(0, cons(z0, z1)) -> c2(MARK(z0))
   MARK(from(z0)) -> c6(A__FROM(mark(z0)), MARK(z0))
   MARK(cons(z0, z1)) -> c9(MARK(z0))
   MARK(s(z0)) -> c10(MARK(z0))
   A__SEL(s(x0), cons(x1, s(z0))) -> c3(MARK(x0))
   A__SEL(s(x0), cons(x1, 0)) -> c3(MARK(x0))
   A__SEL(s(cons(z0, z1)), cons(x1, x2)) -> c3(MARK(cons(z0, z1)))
   A__SEL(s(x0), cons(x1, s(z0))) -> c4(MARK(s(z0)))
   A__SEL(s(cons(z0, z1)), cons(x1, x2)) -> c4(MARK(x2))
   MARK(sel(x0, s(z0))) -> c7(MARK(x0))
   MARK(sel(x0, 0)) -> c7(MARK(x0))
   MARK(sel(cons(z0, z1), x1)) -> c7(MARK(cons(z0, z1)))
   MARK(sel(0, x1)) -> c8(A__SEL(0, mark(x1)), MARK(x1))
   MARK(sel(x0, s(z0))) -> c8(MARK(s(z0)))
   MARK(sel(cons(z0, z1), x1)) -> c8(MARK(x1))
   A__SEL(s(x0), cons(x1, from(x2))) -> c3(A__SEL(mark(x0), cons(mark(mark(x2)), from(s(mark(x2))))), MARK(x0))
   A__SEL(s(x0), cons(x1, from(from(z0)))) -> c3(A__SEL(mark(x0), a__from(a__from(mark(z0)))), MARK(x0))
   A__SEL(s(x0), cons(x1, from(sel(z0, z1)))) -> c3(A__SEL(mark(x0), a__from(a__sel(mark(z0), mark(z1)))), MARK(x0))
   A__SEL(s(x0), cons(x1, from(cons(z0, z1)))) -> c3(A__SEL(mark(x0), a__from(cons(mark(z0), z1))), MARK(x0))
   A__SEL(s(x0), cons(x1, from(s(z0)))) -> c3(A__SEL(mark(x0), a__from(s(mark(z0)))), MARK(x0))
   A__SEL(s(x0), cons(x1, from(0))) -> c3(A__SEL(mark(x0), a__from(0)), MARK(x0))
   A__SEL(s(from(z0)), cons(x1, from(x2))) -> c3(A__SEL(a__from(mark(z0)), a__from(mark(x2))), MARK(from(z0)))
   A__SEL(s(sel(z0, z1)), cons(x1, from(x2))) -> c3(A__SEL(a__sel(mark(z0), mark(z1)), a__from(mark(x2))), MARK(sel(z0, z1)))
   A__SEL(s(s(z0)), cons(x1, from(x2))) -> c3(A__SEL(s(mark(z0)), a__from(mark(x2))), MARK(s(z0)))
   A__SEL(s(x0), cons(x1, from(x2))) -> c3(MARK(x0))
   A__SEL(s(cons(z0, z1)), cons(x1, from(x2))) -> c3(MARK(cons(z0, z1)))
   A__SEL(s(0), cons(x1, from(x2))) -> c3(A__SEL(0, a__from(mark(x2))))
   A__SEL(s(x0), cons(x1, sel(x2, from(z0)))) -> c3(A__SEL(mark(x0), a__sel(mark(x2), a__from(mark(z0)))), MARK(x0))
   A__SEL(s(x0), cons(x1, sel(x2, sel(z0, z1)))) -> c3(A__SEL(mark(x0), a__sel(mark(x2), a__sel(mark(z0), mark(z1)))), MARK(x0))
   A__SEL(s(x0), cons(x1, sel(x2, cons(z0, z1)))) -> c3(A__SEL(mark(x0), a__sel(mark(x2), cons(mark(z0), z1))), MARK(x0))
   A__SEL(s(x0), cons(x1, sel(x2, s(z0)))) -> c3(A__SEL(mark(x0), a__sel(mark(x2), s(mark(z0)))), MARK(x0))
   A__SEL(s(x0), cons(x1, sel(x2, 0))) -> c3(A__SEL(mark(x0), a__sel(mark(x2), 0)), MARK(x0))
   A__SEL(s(x0), cons(x1, sel(from(z0), x3))) -> c3(A__SEL(mark(x0), a__sel(a__from(mark(z0)), mark(x3))), MARK(x0))
   A__SEL(s(x0), cons(x1, sel(sel(z0, z1), x3))) -> c3(A__SEL(mark(x0), a__sel(a__sel(mark(z0), mark(z1)), mark(x3))), MARK(x0))
   A__SEL(s(x0), cons(x1, sel(cons(z0, z1), x3))) -> c3(A__SEL(mark(x0), a__sel(cons(mark(z0), z1), mark(x3))), MARK(x0))
   A__SEL(s(x0), cons(x1, sel(s(z0), x3))) -> c3(A__SEL(mark(x0), a__sel(s(mark(z0)), mark(x3))), MARK(x0))
   A__SEL(s(x0), cons(x1, sel(0, x3))) -> c3(A__SEL(mark(x0), a__sel(0, mark(x3))), MARK(x0))
   A__SEL(s(from(z0)), cons(x1, sel(x2, x3))) -> c3(A__SEL(a__from(mark(z0)), a__sel(mark(x2), mark(x3))), MARK(from(z0)))
   A__SEL(s(sel(z0, z1)), cons(x1, sel(x2, x3))) -> c3(A__SEL(a__sel(mark(z0), mark(z1)), a__sel(mark(x2), mark(x3))), MARK(sel(z0, z1)))
   A__SEL(s(s(z0)), cons(x1, sel(x2, x3))) -> c3(A__SEL(s(mark(z0)), a__sel(mark(x2), mark(x3))), MARK(s(z0)))
   A__SEL(s(x0), cons(x1, sel(x2, x3))) -> c3(MARK(x0))
   A__SEL(s(cons(z0, z1)), cons(x1, sel(x2, x3))) -> c3(MARK(cons(z0, z1)))
   A__SEL(s(0), cons(x1, sel(x2, x3))) -> c3(A__SEL(0, a__sel(mark(x2), mark(x3))))
   A__SEL(s(x0), cons(x1, cons(from(z0), x3))) -> c3(A__SEL(mark(x0), cons(a__from(mark(z0)), x3)), MARK(x0))
   A__SEL(s(x0), cons(x1, cons(sel(z0, z1), x3))) -> c3(A__SEL(mark(x0), cons(a__sel(mark(z0), mark(z1)), x3)), MARK(x0))
   A__SEL(s(x0), cons(x1, cons(cons(z0, z1), x3))) -> c3(A__SEL(mark(x0), cons(cons(mark(z0), z1), x3)), MARK(x0))
   A__SEL(s(x0), cons(x1, cons(s(z0), x3))) -> c3(A__SEL(mark(x0), cons(s(mark(z0)), x3)), MARK(x0))
   A__SEL(s(x0), cons(x1, cons(0, x3))) -> c3(A__SEL(mark(x0), cons(0, x3)), MARK(x0))
   A__SEL(s(from(z0)), cons(x1, cons(x2, x3))) -> c3(A__SEL(a__from(mark(z0)), cons(mark(x2), x3)), MARK(from(z0)))
   A__SEL(s(sel(z0, z1)), cons(x1, cons(x2, x3))) -> c3(A__SEL(a__sel(mark(z0), mark(z1)), cons(mark(x2), x3)), MARK(sel(z0, z1)))
   A__SEL(s(s(z0)), cons(x1, cons(x2, x3))) -> c3(A__SEL(s(mark(z0)), cons(mark(x2), x3)), MARK(s(z0)))
   A__SEL(s(cons(z0, z1)), cons(x1, cons(x2, x3))) -> c3(MARK(cons(z0, z1)))
   A__SEL(s(0), cons(x1, cons(x2, x3))) -> c3(A__SEL(0, cons(mark(x2), x3)))
   A__SEL(s(from(from(z0))), cons(x1, x2)) -> c3(A__SEL(a__from(a__from(mark(z0))), mark(x2)), MARK(from(from(z0))))
   A__SEL(s(from(sel(z0, z1))), cons(x1, x2)) -> c3(A__SEL(a__from(a__sel(mark(z0), mark(z1))), mark(x2)), MARK(from(sel(z0, z1))))
   A__SEL(s(from(cons(z0, z1))), cons(x1, x2)) -> c3(A__SEL(a__from(cons(mark(z0), z1)), mark(x2)), MARK(from(cons(z0, z1))))
   A__SEL(s(from(s(z0))), cons(x1, x2)) -> c3(A__SEL(a__from(s(mark(z0))), mark(x2)), MARK(from(s(z0))))
   A__SEL(s(from(0)), cons(x1, x2)) -> c3(A__SEL(a__from(0), mark(x2)), MARK(from(0)))
   A__SEL(s(from(x0)), cons(x1, x2)) -> c3(MARK(from(x0)))
   A__SEL(s(from(x0)), cons(x1, s(z0))) -> c3(MARK(from(x0)))
   A__SEL(s(from(x0)), cons(x1, 0)) -> c3(MARK(from(x0)))
   A__SEL(s(sel(x0, from(z0))), cons(x2, x3)) -> c3(A__SEL(a__sel(mark(x0), a__from(mark(z0))), mark(x3)), MARK(sel(x0, from(z0))))
   A__SEL(s(sel(x0, sel(z0, z1))), cons(x2, x3)) -> c3(A__SEL(a__sel(mark(x0), a__sel(mark(z0), mark(z1))), mark(x3)), MARK(sel(x0, sel(z0, z1))))
   A__SEL(s(sel(x0, cons(z0, z1))), cons(x2, x3)) -> c3(A__SEL(a__sel(mark(x0), cons(mark(z0), z1)), mark(x3)), MARK(sel(x0, cons(z0, z1))))
   A__SEL(s(sel(x0, s(z0))), cons(x2, x3)) -> c3(A__SEL(a__sel(mark(x0), s(mark(z0))), mark(x3)), MARK(sel(x0, s(z0))))
   A__SEL(s(sel(x0, 0)), cons(x2, x3)) -> c3(A__SEL(a__sel(mark(x0), 0), mark(x3)), MARK(sel(x0, 0)))
   A__SEL(s(sel(from(z0), x1)), cons(x2, x3)) -> c3(A__SEL(a__sel(a__from(mark(z0)), mark(x1)), mark(x3)), MARK(sel(from(z0), x1)))
   A__SEL(s(sel(sel(z0, z1), x1)), cons(x2, x3)) -> c3(A__SEL(a__sel(a__sel(mark(z0), mark(z1)), mark(x1)), mark(x3)), MARK(sel(sel(z0, z1), x1)))
   A__SEL(s(sel(cons(z0, z1), x1)), cons(x2, x3)) -> c3(A__SEL(a__sel(cons(mark(z0), z1), mark(x1)), mark(x3)), MARK(sel(cons(z0, z1), x1)))
   A__SEL(s(sel(s(z0), x1)), cons(x2, x3)) -> c3(A__SEL(a__sel(s(mark(z0)), mark(x1)), mark(x3)), MARK(sel(s(z0), x1)))
   A__SEL(s(sel(0, x1)), cons(x2, x3)) -> c3(A__SEL(a__sel(0, mark(x1)), mark(x3)), MARK(sel(0, x1)))
   A__SEL(s(sel(x0, x1)), cons(x2, s(z0))) -> c3(MARK(sel(x0, x1)))
   A__SEL(s(sel(x0, x1)), cons(x2, 0)) -> c3(MARK(sel(x0, x1)))
   A__SEL(s(sel(x0, x1)), cons(x2, x3)) -> c3(MARK(sel(x0, x1)))
   A__SEL(s(s(from(z0))), cons(x1, x2)) -> c3(A__SEL(s(a__from(mark(z0))), mark(x2)), MARK(s(from(z0))))
   A__SEL(s(s(sel(z0, z1))), cons(x1, x2)) -> c3(A__SEL(s(a__sel(mark(z0), mark(z1))), mark(x2)), MARK(s(sel(z0, z1))))
   A__SEL(s(s(cons(z0, z1))), cons(x1, x2)) -> c3(A__SEL(s(cons(mark(z0), z1)), mark(x2)), MARK(s(cons(z0, z1))))
   A__SEL(s(s(s(z0))), cons(x1, x2)) -> c3(A__SEL(s(s(mark(z0))), mark(x2)), MARK(s(s(z0))))
   A__SEL(s(s(0)), cons(x1, x2)) -> c3(A__SEL(s(0), mark(x2)), MARK(s(0)))
   A__SEL(s(s(x0)), cons(x1, x2)) -> c3(MARK(s(x0)))
   A__SEL(s(s(x0)), cons(x1, s(z0))) -> c3(MARK(s(x0)))
   A__SEL(s(s(x0)), cons(x1, 0)) -> c3(MARK(s(x0)))
   A__SEL(s(x0), cons(x1, from(x2))) -> c4(A__SEL(mark(x0), cons(mark(mark(x2)), from(s(mark(x2))))), MARK(from(x2)))
   A__SEL(s(x0), cons(x1, from(from(z0)))) -> c4(A__SEL(mark(x0), a__from(a__from(mark(z0)))), MARK(from(from(z0))))
   A__SEL(s(x0), cons(x1, from(sel(z0, z1)))) -> c4(A__SEL(mark(x0), a__from(a__sel(mark(z0), mark(z1)))), MARK(from(sel(z0, z1))))
   A__SEL(s(x0), cons(x1, from(cons(z0, z1)))) -> c4(A__SEL(mark(x0), a__from(cons(mark(z0), z1))), MARK(from(cons(z0, z1))))
   A__SEL(s(x0), cons(x1, from(s(z0)))) -> c4(A__SEL(mark(x0), a__from(s(mark(z0)))), MARK(from(s(z0))))
   A__SEL(s(x0), cons(x1, from(0))) -> c4(A__SEL(mark(x0), a__from(0)), MARK(from(0)))
   A__SEL(s(from(z0)), cons(x1, from(x2))) -> c4(A__SEL(a__from(mark(z0)), a__from(mark(x2))), MARK(from(x2)))
   A__SEL(s(sel(z0, z1)), cons(x1, from(x2))) -> c4(A__SEL(a__sel(mark(z0), mark(z1)), a__from(mark(x2))), MARK(from(x2)))
   A__SEL(s(s(z0)), cons(x1, from(x2))) -> c4(A__SEL(s(mark(z0)), a__from(mark(x2))), MARK(from(x2)))
   A__SEL(s(0), cons(x1, from(x2))) -> c4(A__SEL(0, a__from(mark(x2))), MARK(from(x2)))
   A__SEL(s(x0), cons(x1, from(x2))) -> c4(MARK(from(x2)))
   A__SEL(s(cons(z0, z1)), cons(x1, from(x2))) -> c4(MARK(from(x2)))
   A__SEL(s(x0), cons(x1, sel(x2, from(z0)))) -> c4(A__SEL(mark(x0), a__sel(mark(x2), a__from(mark(z0)))), MARK(sel(x2, from(z0))))
   A__SEL(s(x0), cons(x1, sel(x2, sel(z0, z1)))) -> c4(A__SEL(mark(x0), a__sel(mark(x2), a__sel(mark(z0), mark(z1)))), MARK(sel(x2, sel(z0, z1))))
   A__SEL(s(x0), cons(x1, sel(x2, cons(z0, z1)))) -> c4(A__SEL(mark(x0), a__sel(mark(x2), cons(mark(z0), z1))), MARK(sel(x2, cons(z0, z1))))
   A__SEL(s(x0), cons(x1, sel(x2, s(z0)))) -> c4(A__SEL(mark(x0), a__sel(mark(x2), s(mark(z0)))), MARK(sel(x2, s(z0))))
   A__SEL(s(x0), cons(x1, sel(x2, 0))) -> c4(A__SEL(mark(x0), a__sel(mark(x2), 0)), MARK(sel(x2, 0)))
   A__SEL(s(x0), cons(x1, sel(from(z0), x3))) -> c4(A__SEL(mark(x0), a__sel(a__from(mark(z0)), mark(x3))), MARK(sel(from(z0), x3)))
   A__SEL(s(x0), cons(x1, sel(sel(z0, z1), x3))) -> c4(A__SEL(mark(x0), a__sel(a__sel(mark(z0), mark(z1)), mark(x3))), MARK(sel(sel(z0, z1), x3)))
   A__SEL(s(x0), cons(x1, sel(cons(z0, z1), x3))) -> c4(A__SEL(mark(x0), a__sel(cons(mark(z0), z1), mark(x3))), MARK(sel(cons(z0, z1), x3)))
   A__SEL(s(x0), cons(x1, sel(s(z0), x3))) -> c4(A__SEL(mark(x0), a__sel(s(mark(z0)), mark(x3))), MARK(sel(s(z0), x3)))
   A__SEL(s(x0), cons(x1, sel(0, x3))) -> c4(A__SEL(mark(x0), a__sel(0, mark(x3))), MARK(sel(0, x3)))
   A__SEL(s(from(z0)), cons(x1, sel(x2, x3))) -> c4(A__SEL(a__from(mark(z0)), a__sel(mark(x2), mark(x3))), MARK(sel(x2, x3)))
   A__SEL(s(sel(z0, z1)), cons(x1, sel(x2, x3))) -> c4(A__SEL(a__sel(mark(z0), mark(z1)), a__sel(mark(x2), mark(x3))), MARK(sel(x2, x3)))
   A__SEL(s(s(z0)), cons(x1, sel(x2, x3))) -> c4(A__SEL(s(mark(z0)), a__sel(mark(x2), mark(x3))), MARK(sel(x2, x3)))
   A__SEL(s(0), cons(x1, sel(x2, x3))) -> c4(A__SEL(0, a__sel(mark(x2), mark(x3))), MARK(sel(x2, x3)))
   A__SEL(s(x0), cons(x1, sel(x2, x3))) -> c4(MARK(sel(x2, x3)))
   A__SEL(s(cons(z0, z1)), cons(x1, sel(x2, x3))) -> c4(MARK(sel(x2, x3)))
   A__SEL(s(x0), cons(x1, cons(from(z0), x3))) -> c4(A__SEL(mark(x0), cons(a__from(mark(z0)), x3)), MARK(cons(from(z0), x3)))
   A__SEL(s(x0), cons(x1, cons(sel(z0, z1), x3))) -> c4(A__SEL(mark(x0), cons(a__sel(mark(z0), mark(z1)), x3)), MARK(cons(sel(z0, z1), x3)))
   A__SEL(s(x0), cons(x1, cons(cons(z0, z1), x3))) -> c4(A__SEL(mark(x0), cons(cons(mark(z0), z1), x3)), MARK(cons(cons(z0, z1), x3)))
   A__SEL(s(x0), cons(x1, cons(s(z0), x3))) -> c4(A__SEL(mark(x0), cons(s(mark(z0)), x3)), MARK(cons(s(z0), x3)))
   A__SEL(s(x0), cons(x1, cons(0, x3))) -> c4(A__SEL(mark(x0), cons(0, x3)), MARK(cons(0, x3)))
   A__SEL(s(from(z0)), cons(x1, cons(x2, x3))) -> c4(A__SEL(a__from(mark(z0)), cons(mark(x2), x3)), MARK(cons(x2, x3)))
   A__SEL(s(sel(z0, z1)), cons(x1, cons(x2, x3))) -> c4(A__SEL(a__sel(mark(z0), mark(z1)), cons(mark(x2), x3)), MARK(cons(x2, x3)))
   A__SEL(s(s(z0)), cons(x1, cons(x2, x3))) -> c4(A__SEL(s(mark(z0)), cons(mark(x2), x3)), MARK(cons(x2, x3)))
   A__SEL(s(0), cons(x1, cons(x2, x3))) -> c4(A__SEL(0, cons(mark(x2), x3)), MARK(cons(x2, x3)))
   A__SEL(s(x0), cons(x1, cons(x2, x3))) -> c4(MARK(cons(x2, x3)))
   A__SEL(s(cons(z0, z1)), cons(x1, cons(x2, x3))) -> c4(MARK(cons(x2, x3)))
   A__SEL(s(from(from(z0))), cons(x1, x2)) -> c4(A__SEL(a__from(a__from(mark(z0))), mark(x2)), MARK(x2))
   A__SEL(s(from(sel(z0, z1))), cons(x1, x2)) -> c4(A__SEL(a__from(a__sel(mark(z0), mark(z1))), mark(x2)), MARK(x2))
   A__SEL(s(from(cons(z0, z1))), cons(x1, x2)) -> c4(A__SEL(a__from(cons(mark(z0), z1)), mark(x2)), MARK(x2))
   A__SEL(s(from(s(z0))), cons(x1, x2)) -> c4(A__SEL(a__from(s(mark(z0))), mark(x2)), MARK(x2))
   A__SEL(s(from(0)), cons(x1, x2)) -> c4(A__SEL(a__from(0), mark(x2)), MARK(x2))
   A__SEL(s(from(x0)), cons(x1, s(z0))) -> c4(MARK(s(z0)))
   A__SEL(s(from(x0)), cons(x1, x2)) -> c4(MARK(x2))
   A__SEL(s(sel(x0, from(z0))), cons(x2, x3)) -> c4(A__SEL(a__sel(mark(x0), a__from(mark(z0))), mark(x3)), MARK(x3))
   A__SEL(s(sel(x0, sel(z0, z1))), cons(x2, x3)) -> c4(A__SEL(a__sel(mark(x0), a__sel(mark(z0), mark(z1))), mark(x3)), MARK(x3))
   A__SEL(s(sel(x0, cons(z0, z1))), cons(x2, x3)) -> c4(A__SEL(a__sel(mark(x0), cons(mark(z0), z1)), mark(x3)), MARK(x3))
   A__SEL(s(sel(x0, s(z0))), cons(x2, x3)) -> c4(A__SEL(a__sel(mark(x0), s(mark(z0))), mark(x3)), MARK(x3))
   A__SEL(s(sel(x0, 0)), cons(x2, x3)) -> c4(A__SEL(a__sel(mark(x0), 0), mark(x3)), MARK(x3))
   A__SEL(s(sel(from(z0), x1)), cons(x2, x3)) -> c4(A__SEL(a__sel(a__from(mark(z0)), mark(x1)), mark(x3)), MARK(x3))
   A__SEL(s(sel(sel(z0, z1), x1)), cons(x2, x3)) -> c4(A__SEL(a__sel(a__sel(mark(z0), mark(z1)), mark(x1)), mark(x3)), MARK(x3))
   A__SEL(s(sel(cons(z0, z1), x1)), cons(x2, x3)) -> c4(A__SEL(a__sel(cons(mark(z0), z1), mark(x1)), mark(x3)), MARK(x3))
   A__SEL(s(sel(s(z0), x1)), cons(x2, x3)) -> c4(A__SEL(a__sel(s(mark(z0)), mark(x1)), mark(x3)), MARK(x3))
   A__SEL(s(sel(0, x1)), cons(x2, x3)) -> c4(A__SEL(a__sel(0, mark(x1)), mark(x3)), MARK(x3))
   A__SEL(s(sel(x0, x1)), cons(x2, s(z0))) -> c4(MARK(s(z0)))
   A__SEL(s(sel(x0, x1)), cons(x2, x3)) -> c4(MARK(x3))
   A__SEL(s(s(from(z0))), cons(x1, x2)) -> c4(A__SEL(s(a__from(mark(z0))), mark(x2)), MARK(x2))
   A__SEL(s(s(sel(z0, z1))), cons(x1, x2)) -> c4(A__SEL(s(a__sel(mark(z0), mark(z1))), mark(x2)), MARK(x2))
   A__SEL(s(s(cons(z0, z1))), cons(x1, x2)) -> c4(A__SEL(s(cons(mark(z0), z1)), mark(x2)), MARK(x2))
   A__SEL(s(s(s(z0))), cons(x1, x2)) -> c4(A__SEL(s(s(mark(z0))), mark(x2)), MARK(x2))
   A__SEL(s(s(0)), cons(x1, x2)) -> c4(A__SEL(s(0), mark(x2)), MARK(x2))
   A__SEL(s(s(x0)), cons(x1, s(z0))) -> c4(MARK(s(z0)))
   A__SEL(s(0), cons(x0, s(z0))) -> c4(MARK(s(z0)))
   MARK(sel(x0, from(x1))) -> c7(A__SEL(mark(x0), cons(mark(mark(x1)), from(s(mark(x1))))), MARK(x0))
   MARK(sel(x0, from(from(z0)))) -> c7(A__SEL(mark(x0), a__from(a__from(mark(z0)))), MARK(x0))
   MARK(sel(x0, from(sel(z0, z1)))) -> c7(A__SEL(mark(x0), a__from(a__sel(mark(z0), mark(z1)))), MARK(x0))
   MARK(sel(x0, from(cons(z0, z1)))) -> c7(A__SEL(mark(x0), a__from(cons(mark(z0), z1))), MARK(x0))
   MARK(sel(x0, from(s(z0)))) -> c7(A__SEL(mark(x0), a__from(s(mark(z0)))), MARK(x0))
   MARK(sel(x0, from(0))) -> c7(A__SEL(mark(x0), a__from(0)), MARK(x0))
   MARK(sel(from(z0), from(x1))) -> c7(A__SEL(a__from(mark(z0)), a__from(mark(x1))), MARK(from(z0)))
   MARK(sel(sel(z0, z1), from(x1))) -> c7(A__SEL(a__sel(mark(z0), mark(z1)), a__from(mark(x1))), MARK(sel(z0, z1)))
   MARK(sel(s(z0), from(x1))) -> c7(A__SEL(s(mark(z0)), a__from(mark(x1))), MARK(s(z0)))
   MARK(sel(x0, from(x1))) -> c7(MARK(x0))
   MARK(sel(cons(z0, z1), from(x1))) -> c7(MARK(cons(z0, z1)))
   MARK(sel(0, from(x1))) -> c7(A__SEL(0, a__from(mark(x1))))
   MARK(sel(x0, sel(x1, from(z0)))) -> c7(A__SEL(mark(x0), a__sel(mark(x1), a__from(mark(z0)))), MARK(x0))
   MARK(sel(x0, sel(x1, sel(z0, z1)))) -> c7(A__SEL(mark(x0), a__sel(mark(x1), a__sel(mark(z0), mark(z1)))), MARK(x0))
   MARK(sel(x0, sel(x1, cons(z0, z1)))) -> c7(A__SEL(mark(x0), a__sel(mark(x1), cons(mark(z0), z1))), MARK(x0))
   MARK(sel(x0, sel(x1, s(z0)))) -> c7(A__SEL(mark(x0), a__sel(mark(x1), s(mark(z0)))), MARK(x0))
   MARK(sel(x0, sel(x1, 0))) -> c7(A__SEL(mark(x0), a__sel(mark(x1), 0)), MARK(x0))
   MARK(sel(x0, sel(from(z0), x2))) -> c7(A__SEL(mark(x0), a__sel(a__from(mark(z0)), mark(x2))), MARK(x0))
   MARK(sel(x0, sel(sel(z0, z1), x2))) -> c7(A__SEL(mark(x0), a__sel(a__sel(mark(z0), mark(z1)), mark(x2))), MARK(x0))
   MARK(sel(x0, sel(cons(z0, z1), x2))) -> c7(A__SEL(mark(x0), a__sel(cons(mark(z0), z1), mark(x2))), MARK(x0))
   MARK(sel(x0, sel(s(z0), x2))) -> c7(A__SEL(mark(x0), a__sel(s(mark(z0)), mark(x2))), MARK(x0))
   MARK(sel(x0, sel(0, x2))) -> c7(A__SEL(mark(x0), a__sel(0, mark(x2))), MARK(x0))
   MARK(sel(from(z0), sel(x1, x2))) -> c7(A__SEL(a__from(mark(z0)), a__sel(mark(x1), mark(x2))), MARK(from(z0)))
   MARK(sel(sel(z0, z1), sel(x1, x2))) -> c7(A__SEL(a__sel(mark(z0), mark(z1)), a__sel(mark(x1), mark(x2))), MARK(sel(z0, z1)))
   MARK(sel(s(z0), sel(x1, x2))) -> c7(A__SEL(s(mark(z0)), a__sel(mark(x1), mark(x2))), MARK(s(z0)))
   MARK(sel(x0, sel(x1, x2))) -> c7(MARK(x0))
   MARK(sel(cons(z0, z1), sel(x1, x2))) -> c7(MARK(cons(z0, z1)))
   MARK(sel(0, sel(x1, x2))) -> c7(A__SEL(0, a__sel(mark(x1), mark(x2))))
   MARK(sel(x0, cons(from(z0), x2))) -> c7(A__SEL(mark(x0), cons(a__from(mark(z0)), x2)), MARK(x0))
   MARK(sel(x0, cons(sel(z0, z1), x2))) -> c7(A__SEL(mark(x0), cons(a__sel(mark(z0), mark(z1)), x2)), MARK(x0))
   MARK(sel(x0, cons(cons(z0, z1), x2))) -> c7(A__SEL(mark(x0), cons(cons(mark(z0), z1), x2)), MARK(x0))
   MARK(sel(x0, cons(s(z0), x2))) -> c7(A__SEL(mark(x0), cons(s(mark(z0)), x2)), MARK(x0))
   MARK(sel(x0, cons(0, x2))) -> c7(A__SEL(mark(x0), cons(0, x2)), MARK(x0))
   MARK(sel(from(z0), cons(x1, x2))) -> c7(A__SEL(a__from(mark(z0)), cons(mark(x1), x2)), MARK(from(z0)))
   MARK(sel(sel(z0, z1), cons(x1, x2))) -> c7(A__SEL(a__sel(mark(z0), mark(z1)), cons(mark(x1), x2)), MARK(sel(z0, z1)))
   MARK(sel(s(z0), cons(x1, x2))) -> c7(A__SEL(s(mark(z0)), cons(mark(x1), x2)), MARK(s(z0)))
   MARK(sel(cons(z0, z1), cons(x1, x2))) -> c7(MARK(cons(z0, z1)))
   MARK(sel(0, cons(x1, x2))) -> c7(A__SEL(0, cons(mark(x1), x2)))
   MARK(sel(from(from(z0)), x1)) -> c7(A__SEL(a__from(a__from(mark(z0))), mark(x1)), MARK(from(from(z0))))
   MARK(sel(from(sel(z0, z1)), x1)) -> c7(A__SEL(a__from(a__sel(mark(z0), mark(z1))), mark(x1)), MARK(from(sel(z0, z1))))
   MARK(sel(from(cons(z0, z1)), x1)) -> c7(A__SEL(a__from(cons(mark(z0), z1)), mark(x1)), MARK(from(cons(z0, z1))))
   MARK(sel(from(s(z0)), x1)) -> c7(A__SEL(a__from(s(mark(z0))), mark(x1)), MARK(from(s(z0))))
   MARK(sel(from(0), x1)) -> c7(A__SEL(a__from(0), mark(x1)), MARK(from(0)))
   MARK(sel(from(x0), x1)) -> c7(MARK(from(x0)))
   MARK(sel(from(x0), s(z0))) -> c7(MARK(from(x0)))
   MARK(sel(from(x0), 0)) -> c7(MARK(from(x0)))
   MARK(sel(sel(x0, from(z0)), x2)) -> c7(A__SEL(a__sel(mark(x0), a__from(mark(z0))), mark(x2)), MARK(sel(x0, from(z0))))
   MARK(sel(sel(x0, sel(z0, z1)), x2)) -> c7(A__SEL(a__sel(mark(x0), a__sel(mark(z0), mark(z1))), mark(x2)), MARK(sel(x0, sel(z0, z1))))
   MARK(sel(sel(x0, cons(z0, z1)), x2)) -> c7(A__SEL(a__sel(mark(x0), cons(mark(z0), z1)), mark(x2)), MARK(sel(x0, cons(z0, z1))))
   MARK(sel(sel(x0, s(z0)), x2)) -> c7(A__SEL(a__sel(mark(x0), s(mark(z0))), mark(x2)), MARK(sel(x0, s(z0))))
   MARK(sel(sel(x0, 0), x2)) -> c7(A__SEL(a__sel(mark(x0), 0), mark(x2)), MARK(sel(x0, 0)))
   MARK(sel(sel(from(z0), x1), x2)) -> c7(A__SEL(a__sel(a__from(mark(z0)), mark(x1)), mark(x2)), MARK(sel(from(z0), x1)))
   MARK(sel(sel(sel(z0, z1), x1), x2)) -> c7(A__SEL(a__sel(a__sel(mark(z0), mark(z1)), mark(x1)), mark(x2)), MARK(sel(sel(z0, z1), x1)))
   MARK(sel(sel(cons(z0, z1), x1), x2)) -> c7(A__SEL(a__sel(cons(mark(z0), z1), mark(x1)), mark(x2)), MARK(sel(cons(z0, z1), x1)))
   MARK(sel(sel(s(z0), x1), x2)) -> c7(A__SEL(a__sel(s(mark(z0)), mark(x1)), mark(x2)), MARK(sel(s(z0), x1)))
   MARK(sel(sel(0, x1), x2)) -> c7(A__SEL(a__sel(0, mark(x1)), mark(x2)), MARK(sel(0, x1)))
   MARK(sel(sel(x0, x1), s(z0))) -> c7(MARK(sel(x0, x1)))
   MARK(sel(sel(x0, x1), 0)) -> c7(MARK(sel(x0, x1)))
   MARK(sel(sel(x0, x1), x2)) -> c7(MARK(sel(x0, x1)))
   MARK(sel(s(from(z0)), x1)) -> c7(A__SEL(s(a__from(mark(z0))), mark(x1)), MARK(s(from(z0))))
   MARK(sel(s(sel(z0, z1)), x1)) -> c7(A__SEL(s(a__sel(mark(z0), mark(z1))), mark(x1)), MARK(s(sel(z0, z1))))
   MARK(sel(s(cons(z0, z1)), x1)) -> c7(A__SEL(s(cons(mark(z0), z1)), mark(x1)), MARK(s(cons(z0, z1))))
   MARK(sel(s(s(z0)), x1)) -> c7(A__SEL(s(s(mark(z0))), mark(x1)), MARK(s(s(z0))))
   MARK(sel(s(0), x1)) -> c7(A__SEL(s(0), mark(x1)), MARK(s(0)))
   MARK(sel(s(x0), x1)) -> c7(MARK(s(x0)))
   MARK(sel(s(x0), s(z0))) -> c7(MARK(s(x0)))
   MARK(sel(s(x0), 0)) -> c7(MARK(s(x0)))
   MARK(sel(x0, from(x1))) -> c8(A__SEL(mark(x0), cons(mark(mark(x1)), from(s(mark(x1))))), MARK(from(x1)))
   MARK(sel(x0, from(from(z0)))) -> c8(A__SEL(mark(x0), a__from(a__from(mark(z0)))), MARK(from(from(z0))))
   MARK(sel(x0, from(sel(z0, z1)))) -> c8(A__SEL(mark(x0), a__from(a__sel(mark(z0), mark(z1)))), MARK(from(sel(z0, z1))))
   MARK(sel(x0, from(cons(z0, z1)))) -> c8(A__SEL(mark(x0), a__from(cons(mark(z0), z1))), MARK(from(cons(z0, z1))))
   MARK(sel(x0, from(s(z0)))) -> c8(A__SEL(mark(x0), a__from(s(mark(z0)))), MARK(from(s(z0))))
   MARK(sel(x0, from(0))) -> c8(A__SEL(mark(x0), a__from(0)), MARK(from(0)))
   MARK(sel(from(z0), from(x1))) -> c8(A__SEL(a__from(mark(z0)), a__from(mark(x1))), MARK(from(x1)))
   MARK(sel(sel(z0, z1), from(x1))) -> c8(A__SEL(a__sel(mark(z0), mark(z1)), a__from(mark(x1))), MARK(from(x1)))
   MARK(sel(s(z0), from(x1))) -> c8(A__SEL(s(mark(z0)), a__from(mark(x1))), MARK(from(x1)))
   MARK(sel(0, from(x1))) -> c8(A__SEL(0, a__from(mark(x1))), MARK(from(x1)))
   MARK(sel(x0, from(x1))) -> c8(MARK(from(x1)))
   MARK(sel(cons(z0, z1), from(x1))) -> c8(MARK(from(x1)))
   MARK(sel(x0, sel(x1, from(z0)))) -> c8(A__SEL(mark(x0), a__sel(mark(x1), a__from(mark(z0)))), MARK(sel(x1, from(z0))))
   MARK(sel(x0, sel(x1, sel(z0, z1)))) -> c8(A__SEL(mark(x0), a__sel(mark(x1), a__sel(mark(z0), mark(z1)))), MARK(sel(x1, sel(z0, z1))))
   MARK(sel(x0, sel(x1, cons(z0, z1)))) -> c8(A__SEL(mark(x0), a__sel(mark(x1), cons(mark(z0), z1))), MARK(sel(x1, cons(z0, z1))))
   MARK(sel(x0, sel(x1, s(z0)))) -> c8(A__SEL(mark(x0), a__sel(mark(x1), s(mark(z0)))), MARK(sel(x1, s(z0))))
   MARK(sel(x0, sel(x1, 0))) -> c8(A__SEL(mark(x0), a__sel(mark(x1), 0)), MARK(sel(x1, 0)))
   MARK(sel(x0, sel(from(z0), x2))) -> c8(A__SEL(mark(x0), a__sel(a__from(mark(z0)), mark(x2))), MARK(sel(from(z0), x2)))
   MARK(sel(x0, sel(sel(z0, z1), x2))) -> c8(A__SEL(mark(x0), a__sel(a__sel(mark(z0), mark(z1)), mark(x2))), MARK(sel(sel(z0, z1), x2)))
   MARK(sel(x0, sel(cons(z0, z1), x2))) -> c8(A__SEL(mark(x0), a__sel(cons(mark(z0), z1), mark(x2))), MARK(sel(cons(z0, z1), x2)))
   MARK(sel(x0, sel(s(z0), x2))) -> c8(A__SEL(mark(x0), a__sel(s(mark(z0)), mark(x2))), MARK(sel(s(z0), x2)))
   MARK(sel(x0, sel(0, x2))) -> c8(A__SEL(mark(x0), a__sel(0, mark(x2))), MARK(sel(0, x2)))
   MARK(sel(from(z0), sel(x1, x2))) -> c8(A__SEL(a__from(mark(z0)), a__sel(mark(x1), mark(x2))), MARK(sel(x1, x2)))
   MARK(sel(sel(z0, z1), sel(x1, x2))) -> c8(A__SEL(a__sel(mark(z0), mark(z1)), a__sel(mark(x1), mark(x2))), MARK(sel(x1, x2)))
   MARK(sel(s(z0), sel(x1, x2))) -> c8(A__SEL(s(mark(z0)), a__sel(mark(x1), mark(x2))), MARK(sel(x1, x2)))
   MARK(sel(0, sel(x1, x2))) -> c8(A__SEL(0, a__sel(mark(x1), mark(x2))), MARK(sel(x1, x2)))
   MARK(sel(x0, sel(x1, x2))) -> c8(MARK(sel(x1, x2)))
   MARK(sel(cons(z0, z1), sel(x1, x2))) -> c8(MARK(sel(x1, x2)))
   MARK(sel(x0, cons(from(z0), x2))) -> c8(A__SEL(mark(x0), cons(a__from(mark(z0)), x2)), MARK(cons(from(z0), x2)))
   MARK(sel(x0, cons(sel(z0, z1), x2))) -> c8(A__SEL(mark(x0), cons(a__sel(mark(z0), mark(z1)), x2)), MARK(cons(sel(z0, z1), x2)))
   MARK(sel(x0, cons(cons(z0, z1), x2))) -> c8(A__SEL(mark(x0), cons(cons(mark(z0), z1), x2)), MARK(cons(cons(z0, z1), x2)))
   MARK(sel(x0, cons(s(z0), x2))) -> c8(A__SEL(mark(x0), cons(s(mark(z0)), x2)), MARK(cons(s(z0), x2)))
   MARK(sel(x0, cons(0, x2))) -> c8(A__SEL(mark(x0), cons(0, x2)), MARK(cons(0, x2)))
   MARK(sel(from(z0), cons(x1, x2))) -> c8(A__SEL(a__from(mark(z0)), cons(mark(x1), x2)), MARK(cons(x1, x2)))
   MARK(sel(sel(z0, z1), cons(x1, x2))) -> c8(A__SEL(a__sel(mark(z0), mark(z1)), cons(mark(x1), x2)), MARK(cons(x1, x2)))
   MARK(sel(s(z0), cons(x1, x2))) -> c8(A__SEL(s(mark(z0)), cons(mark(x1), x2)), MARK(cons(x1, x2)))
   MARK(sel(0, cons(x1, x2))) -> c8(A__SEL(0, cons(mark(x1), x2)), MARK(cons(x1, x2)))
   MARK(sel(x0, cons(x1, x2))) -> c8(MARK(cons(x1, x2)))
   MARK(sel(cons(z0, z1), cons(x1, x2))) -> c8(MARK(cons(x1, x2)))
   MARK(sel(from(from(z0)), x1)) -> c8(A__SEL(a__from(a__from(mark(z0))), mark(x1)), MARK(x1))
   MARK(sel(from(sel(z0, z1)), x1)) -> c8(A__SEL(a__from(a__sel(mark(z0), mark(z1))), mark(x1)), MARK(x1))
   MARK(sel(from(cons(z0, z1)), x1)) -> c8(A__SEL(a__from(cons(mark(z0), z1)), mark(x1)), MARK(x1))
   MARK(sel(from(s(z0)), x1)) -> c8(A__SEL(a__from(s(mark(z0))), mark(x1)), MARK(x1))
   MARK(sel(from(0), x1)) -> c8(A__SEL(a__from(0), mark(x1)), MARK(x1))
   MARK(sel(from(x0), s(z0))) -> c8(MARK(s(z0)))
   MARK(sel(from(x0), x1)) -> c8(MARK(x1))
   MARK(sel(sel(x0, from(z0)), x2)) -> c8(A__SEL(a__sel(mark(x0), a__from(mark(z0))), mark(x2)), MARK(x2))
   MARK(sel(sel(x0, sel(z0, z1)), x2)) -> c8(A__SEL(a__sel(mark(x0), a__sel(mark(z0), mark(z1))), mark(x2)), MARK(x2))
   MARK(sel(sel(x0, cons(z0, z1)), x2)) -> c8(A__SEL(a__sel(mark(x0), cons(mark(z0), z1)), mark(x2)), MARK(x2))
   MARK(sel(sel(x0, s(z0)), x2)) -> c8(A__SEL(a__sel(mark(x0), s(mark(z0))), mark(x2)), MARK(x2))
   MARK(sel(sel(x0, 0), x2)) -> c8(A__SEL(a__sel(mark(x0), 0), mark(x2)), MARK(x2))
   MARK(sel(sel(from(z0), x1), x2)) -> c8(A__SEL(a__sel(a__from(mark(z0)), mark(x1)), mark(x2)), MARK(x2))
   MARK(sel(sel(sel(z0, z1), x1), x2)) -> c8(A__SEL(a__sel(a__sel(mark(z0), mark(z1)), mark(x1)), mark(x2)), MARK(x2))
   MARK(sel(sel(cons(z0, z1), x1), x2)) -> c8(A__SEL(a__sel(cons(mark(z0), z1), mark(x1)), mark(x2)), MARK(x2))
   MARK(sel(sel(s(z0), x1), x2)) -> c8(A__SEL(a__sel(s(mark(z0)), mark(x1)), mark(x2)), MARK(x2))
   MARK(sel(sel(0, x1), x2)) -> c8(A__SEL(a__sel(0, mark(x1)), mark(x2)), MARK(x2))
   MARK(sel(sel(x0, x1), s(z0))) -> c8(MARK(s(z0)))
   MARK(sel(sel(x0, x1), x2)) -> c8(MARK(x2))
   MARK(sel(s(x0), s(z0))) -> c8(A__SEL(s(mark(x0)), s(mark(z0))), MARK(s(z0)))
   MARK(sel(s(from(z0)), x1)) -> c8(A__SEL(s(a__from(mark(z0))), mark(x1)), MARK(x1))
   MARK(sel(s(sel(z0, z1)), x1)) -> c8(A__SEL(s(a__sel(mark(z0), mark(z1))), mark(x1)), MARK(x1))
   MARK(sel(s(cons(z0, z1)), x1)) -> c8(A__SEL(s(cons(mark(z0), z1)), mark(x1)), MARK(x1))
   MARK(sel(s(s(z0)), x1)) -> c8(A__SEL(s(s(mark(z0))), mark(x1)), MARK(x1))
   MARK(sel(s(0), x1)) -> c8(A__SEL(s(0), mark(x1)), MARK(x1))
S tuples:
   A__FROM(z0) -> c(MARK(z0))
   A__SEL(0, cons(z0, z1)) -> c2(MARK(z0))
   MARK(from(z0)) -> c6(A__FROM(mark(z0)), MARK(z0))
   MARK(cons(z0, z1)) -> c9(MARK(z0))
   MARK(s(z0)) -> c10(MARK(z0))
   A__SEL(s(x0), cons(x1, s(z0))) -> c3(MARK(x0))
   A__SEL(s(x0), cons(x1, 0)) -> c3(MARK(x0))
   A__SEL(s(cons(z0, z1)), cons(x1, x2)) -> c3(MARK(cons(z0, z1)))
   A__SEL(s(x0), cons(x1, s(z0))) -> c4(MARK(s(z0)))
   A__SEL(s(cons(z0, z1)), cons(x1, x2)) -> c4(MARK(x2))
   MARK(sel(x0, s(z0))) -> c7(MARK(x0))
   MARK(sel(x0, 0)) -> c7(MARK(x0))
   MARK(sel(cons(z0, z1), x1)) -> c7(MARK(cons(z0, z1)))
   MARK(sel(0, x1)) -> c8(A__SEL(0, mark(x1)), MARK(x1))
   MARK(sel(x0, s(z0))) -> c8(MARK(s(z0)))
   MARK(sel(cons(z0, z1), x1)) -> c8(MARK(x1))
   A__SEL(s(x0), cons(x1, from(x2))) -> c3(A__SEL(mark(x0), cons(mark(mark(x2)), from(s(mark(x2))))), MARK(x0))
   A__SEL(s(x0), cons(x1, from(from(z0)))) -> c3(A__SEL(mark(x0), a__from(a__from(mark(z0)))), MARK(x0))
   A__SEL(s(x0), cons(x1, from(sel(z0, z1)))) -> c3(A__SEL(mark(x0), a__from(a__sel(mark(z0), mark(z1)))), MARK(x0))
   A__SEL(s(x0), cons(x1, from(cons(z0, z1)))) -> c3(A__SEL(mark(x0), a__from(cons(mark(z0), z1))), MARK(x0))
   A__SEL(s(x0), cons(x1, from(s(z0)))) -> c3(A__SEL(mark(x0), a__from(s(mark(z0)))), MARK(x0))
   A__SEL(s(x0), cons(x1, from(0))) -> c3(A__SEL(mark(x0), a__from(0)), MARK(x0))
   A__SEL(s(from(z0)), cons(x1, from(x2))) -> c3(A__SEL(a__from(mark(z0)), a__from(mark(x2))), MARK(from(z0)))
   A__SEL(s(sel(z0, z1)), cons(x1, from(x2))) -> c3(A__SEL(a__sel(mark(z0), mark(z1)), a__from(mark(x2))), MARK(sel(z0, z1)))
   A__SEL(s(s(z0)), cons(x1, from(x2))) -> c3(A__SEL(s(mark(z0)), a__from(mark(x2))), MARK(s(z0)))
   A__SEL(s(x0), cons(x1, from(x2))) -> c3(MARK(x0))
   A__SEL(s(cons(z0, z1)), cons(x1, from(x2))) -> c3(MARK(cons(z0, z1)))
   A__SEL(s(0), cons(x1, from(x2))) -> c3(A__SEL(0, a__from(mark(x2))))
   A__SEL(s(x0), cons(x1, sel(x2, from(z0)))) -> c3(A__SEL(mark(x0), a__sel(mark(x2), a__from(mark(z0)))), MARK(x0))
   A__SEL(s(x0), cons(x1, sel(x2, sel(z0, z1)))) -> c3(A__SEL(mark(x0), a__sel(mark(x2), a__sel(mark(z0), mark(z1)))), MARK(x0))
   A__SEL(s(x0), cons(x1, sel(x2, cons(z0, z1)))) -> c3(A__SEL(mark(x0), a__sel(mark(x2), cons(mark(z0), z1))), MARK(x0))
   A__SEL(s(x0), cons(x1, sel(x2, s(z0)))) -> c3(A__SEL(mark(x0), a__sel(mark(x2), s(mark(z0)))), MARK(x0))
   A__SEL(s(x0), cons(x1, sel(x2, 0))) -> c3(A__SEL(mark(x0), a__sel(mark(x2), 0)), MARK(x0))
   A__SEL(s(x0), cons(x1, sel(from(z0), x3))) -> c3(A__SEL(mark(x0), a__sel(a__from(mark(z0)), mark(x3))), MARK(x0))
   A__SEL(s(x0), cons(x1, sel(sel(z0, z1), x3))) -> c3(A__SEL(mark(x0), a__sel(a__sel(mark(z0), mark(z1)), mark(x3))), MARK(x0))
   A__SEL(s(x0), cons(x1, sel(cons(z0, z1), x3))) -> c3(A__SEL(mark(x0), a__sel(cons(mark(z0), z1), mark(x3))), MARK(x0))
   A__SEL(s(x0), cons(x1, sel(s(z0), x3))) -> c3(A__SEL(mark(x0), a__sel(s(mark(z0)), mark(x3))), MARK(x0))
   A__SEL(s(x0), cons(x1, sel(0, x3))) -> c3(A__SEL(mark(x0), a__sel(0, mark(x3))), MARK(x0))
   A__SEL(s(from(z0)), cons(x1, sel(x2, x3))) -> c3(A__SEL(a__from(mark(z0)), a__sel(mark(x2), mark(x3))), MARK(from(z0)))
   A__SEL(s(sel(z0, z1)), cons(x1, sel(x2, x3))) -> c3(A__SEL(a__sel(mark(z0), mark(z1)), a__sel(mark(x2), mark(x3))), MARK(sel(z0, z1)))
   A__SEL(s(s(z0)), cons(x1, sel(x2, x3))) -> c3(A__SEL(s(mark(z0)), a__sel(mark(x2), mark(x3))), MARK(s(z0)))
   A__SEL(s(x0), cons(x1, sel(x2, x3))) -> c3(MARK(x0))
   A__SEL(s(cons(z0, z1)), cons(x1, sel(x2, x3))) -> c3(MARK(cons(z0, z1)))
   A__SEL(s(0), cons(x1, sel(x2, x3))) -> c3(A__SEL(0, a__sel(mark(x2), mark(x3))))
   A__SEL(s(x0), cons(x1, cons(from(z0), x3))) -> c3(A__SEL(mark(x0), cons(a__from(mark(z0)), x3)), MARK(x0))
   A__SEL(s(x0), cons(x1, cons(sel(z0, z1), x3))) -> c3(A__SEL(mark(x0), cons(a__sel(mark(z0), mark(z1)), x3)), MARK(x0))
   A__SEL(s(x0), cons(x1, cons(cons(z0, z1), x3))) -> c3(A__SEL(mark(x0), cons(cons(mark(z0), z1), x3)), MARK(x0))
   A__SEL(s(x0), cons(x1, cons(s(z0), x3))) -> c3(A__SEL(mark(x0), cons(s(mark(z0)), x3)), MARK(x0))
   A__SEL(s(x0), cons(x1, cons(0, x3))) -> c3(A__SEL(mark(x0), cons(0, x3)), MARK(x0))
   A__SEL(s(from(z0)), cons(x1, cons(x2, x3))) -> c3(A__SEL(a__from(mark(z0)), cons(mark(x2), x3)), MARK(from(z0)))
   A__SEL(s(sel(z0, z1)), cons(x1, cons(x2, x3))) -> c3(A__SEL(a__sel(mark(z0), mark(z1)), cons(mark(x2), x3)), MARK(sel(z0, z1)))
   A__SEL(s(s(z0)), cons(x1, cons(x2, x3))) -> c3(A__SEL(s(mark(z0)), cons(mark(x2), x3)), MARK(s(z0)))
   A__SEL(s(cons(z0, z1)), cons(x1, cons(x2, x3))) -> c3(MARK(cons(z0, z1)))
   A__SEL(s(0), cons(x1, cons(x2, x3))) -> c3(A__SEL(0, cons(mark(x2), x3)))
   A__SEL(s(from(from(z0))), cons(x1, x2)) -> c3(A__SEL(a__from(a__from(mark(z0))), mark(x2)), MARK(from(from(z0))))
   A__SEL(s(from(sel(z0, z1))), cons(x1, x2)) -> c3(A__SEL(a__from(a__sel(mark(z0), mark(z1))), mark(x2)), MARK(from(sel(z0, z1))))
   A__SEL(s(from(cons(z0, z1))), cons(x1, x2)) -> c3(A__SEL(a__from(cons(mark(z0), z1)), mark(x2)), MARK(from(cons(z0, z1))))
   A__SEL(s(from(s(z0))), cons(x1, x2)) -> c3(A__SEL(a__from(s(mark(z0))), mark(x2)), MARK(from(s(z0))))
   A__SEL(s(from(0)), cons(x1, x2)) -> c3(A__SEL(a__from(0), mark(x2)), MARK(from(0)))
   A__SEL(s(from(x0)), cons(x1, x2)) -> c3(MARK(from(x0)))
   A__SEL(s(from(x0)), cons(x1, s(z0))) -> c3(MARK(from(x0)))
   A__SEL(s(from(x0)), cons(x1, 0)) -> c3(MARK(from(x0)))
   A__SEL(s(sel(x0, from(z0))), cons(x2, x3)) -> c3(A__SEL(a__sel(mark(x0), a__from(mark(z0))), mark(x3)), MARK(sel(x0, from(z0))))
   A__SEL(s(sel(x0, sel(z0, z1))), cons(x2, x3)) -> c3(A__SEL(a__sel(mark(x0), a__sel(mark(z0), mark(z1))), mark(x3)), MARK(sel(x0, sel(z0, z1))))
   A__SEL(s(sel(x0, cons(z0, z1))), cons(x2, x3)) -> c3(A__SEL(a__sel(mark(x0), cons(mark(z0), z1)), mark(x3)), MARK(sel(x0, cons(z0, z1))))
   A__SEL(s(sel(x0, s(z0))), cons(x2, x3)) -> c3(A__SEL(a__sel(mark(x0), s(mark(z0))), mark(x3)), MARK(sel(x0, s(z0))))
   A__SEL(s(sel(x0, 0)), cons(x2, x3)) -> c3(A__SEL(a__sel(mark(x0), 0), mark(x3)), MARK(sel(x0, 0)))
   A__SEL(s(sel(from(z0), x1)), cons(x2, x3)) -> c3(A__SEL(a__sel(a__from(mark(z0)), mark(x1)), mark(x3)), MARK(sel(from(z0), x1)))
   A__SEL(s(sel(sel(z0, z1), x1)), cons(x2, x3)) -> c3(A__SEL(a__sel(a__sel(mark(z0), mark(z1)), mark(x1)), mark(x3)), MARK(sel(sel(z0, z1), x1)))
   A__SEL(s(sel(cons(z0, z1), x1)), cons(x2, x3)) -> c3(A__SEL(a__sel(cons(mark(z0), z1), mark(x1)), mark(x3)), MARK(sel(cons(z0, z1), x1)))
   A__SEL(s(sel(s(z0), x1)), cons(x2, x3)) -> c3(A__SEL(a__sel(s(mark(z0)), mark(x1)), mark(x3)), MARK(sel(s(z0), x1)))
   A__SEL(s(sel(0, x1)), cons(x2, x3)) -> c3(A__SEL(a__sel(0, mark(x1)), mark(x3)), MARK(sel(0, x1)))
   A__SEL(s(sel(x0, x1)), cons(x2, s(z0))) -> c3(MARK(sel(x0, x1)))
   A__SEL(s(sel(x0, x1)), cons(x2, 0)) -> c3(MARK(sel(x0, x1)))
   A__SEL(s(sel(x0, x1)), cons(x2, x3)) -> c3(MARK(sel(x0, x1)))
   A__SEL(s(s(from(z0))), cons(x1, x2)) -> c3(A__SEL(s(a__from(mark(z0))), mark(x2)), MARK(s(from(z0))))
   A__SEL(s(s(sel(z0, z1))), cons(x1, x2)) -> c3(A__SEL(s(a__sel(mark(z0), mark(z1))), mark(x2)), MARK(s(sel(z0, z1))))
   A__SEL(s(s(cons(z0, z1))), cons(x1, x2)) -> c3(A__SEL(s(cons(mark(z0), z1)), mark(x2)), MARK(s(cons(z0, z1))))
   A__SEL(s(s(s(z0))), cons(x1, x2)) -> c3(A__SEL(s(s(mark(z0))), mark(x2)), MARK(s(s(z0))))
   A__SEL(s(s(0)), cons(x1, x2)) -> c3(A__SEL(s(0), mark(x2)), MARK(s(0)))
   A__SEL(s(s(x0)), cons(x1, x2)) -> c3(MARK(s(x0)))
   A__SEL(s(s(x0)), cons(x1, s(z0))) -> c3(MARK(s(x0)))
   A__SEL(s(s(x0)), cons(x1, 0)) -> c3(MARK(s(x0)))
   A__SEL(s(x0), cons(x1, from(x2))) -> c4(A__SEL(mark(x0), cons(mark(mark(x2)), from(s(mark(x2))))), MARK(from(x2)))
   A__SEL(s(x0), cons(x1, from(from(z0)))) -> c4(A__SEL(mark(x0), a__from(a__from(mark(z0)))), MARK(from(from(z0))))
   A__SEL(s(x0), cons(x1, from(sel(z0, z1)))) -> c4(A__SEL(mark(x0), a__from(a__sel(mark(z0), mark(z1)))), MARK(from(sel(z0, z1))))
   A__SEL(s(x0), cons(x1, from(cons(z0, z1)))) -> c4(A__SEL(mark(x0), a__from(cons(mark(z0), z1))), MARK(from(cons(z0, z1))))
   A__SEL(s(x0), cons(x1, from(s(z0)))) -> c4(A__SEL(mark(x0), a__from(s(mark(z0)))), MARK(from(s(z0))))
   A__SEL(s(x0), cons(x1, from(0))) -> c4(A__SEL(mark(x0), a__from(0)), MARK(from(0)))
   A__SEL(s(from(z0)), cons(x1, from(x2))) -> c4(A__SEL(a__from(mark(z0)), a__from(mark(x2))), MARK(from(x2)))
   A__SEL(s(sel(z0, z1)), cons(x1, from(x2))) -> c4(A__SEL(a__sel(mark(z0), mark(z1)), a__from(mark(x2))), MARK(from(x2)))
   A__SEL(s(s(z0)), cons(x1, from(x2))) -> c4(A__SEL(s(mark(z0)), a__from(mark(x2))), MARK(from(x2)))
   A__SEL(s(0), cons(x1, from(x2))) -> c4(A__SEL(0, a__from(mark(x2))), MARK(from(x2)))
   A__SEL(s(x0), cons(x1, from(x2))) -> c4(MARK(from(x2)))
   A__SEL(s(cons(z0, z1)), cons(x1, from(x2))) -> c4(MARK(from(x2)))
   A__SEL(s(x0), cons(x1, sel(x2, from(z0)))) -> c4(A__SEL(mark(x0), a__sel(mark(x2), a__from(mark(z0)))), MARK(sel(x2, from(z0))))
   A__SEL(s(x0), cons(x1, sel(x2, sel(z0, z1)))) -> c4(A__SEL(mark(x0), a__sel(mark(x2), a__sel(mark(z0), mark(z1)))), MARK(sel(x2, sel(z0, z1))))
   A__SEL(s(x0), cons(x1, sel(x2, cons(z0, z1)))) -> c4(A__SEL(mark(x0), a__sel(mark(x2), cons(mark(z0), z1))), MARK(sel(x2, cons(z0, z1))))
   A__SEL(s(x0), cons(x1, sel(x2, s(z0)))) -> c4(A__SEL(mark(x0), a__sel(mark(x2), s(mark(z0)))), MARK(sel(x2, s(z0))))
   A__SEL(s(x0), cons(x1, sel(x2, 0))) -> c4(A__SEL(mark(x0), a__sel(mark(x2), 0)), MARK(sel(x2, 0)))
   A__SEL(s(x0), cons(x1, sel(from(z0), x3))) -> c4(A__SEL(mark(x0), a__sel(a__from(mark(z0)), mark(x3))), MARK(sel(from(z0), x3)))
   A__SEL(s(x0), cons(x1, sel(sel(z0, z1), x3))) -> c4(A__SEL(mark(x0), a__sel(a__sel(mark(z0), mark(z1)), mark(x3))), MARK(sel(sel(z0, z1), x3)))
   A__SEL(s(x0), cons(x1, sel(cons(z0, z1), x3))) -> c4(A__SEL(mark(x0), a__sel(cons(mark(z0), z1), mark(x3))), MARK(sel(cons(z0, z1), x3)))
   A__SEL(s(x0), cons(x1, sel(s(z0), x3))) -> c4(A__SEL(mark(x0), a__sel(s(mark(z0)), mark(x3))), MARK(sel(s(z0), x3)))
   A__SEL(s(x0), cons(x1, sel(0, x3))) -> c4(A__SEL(mark(x0), a__sel(0, mark(x3))), MARK(sel(0, x3)))
   A__SEL(s(from(z0)), cons(x1, sel(x2, x3))) -> c4(A__SEL(a__from(mark(z0)), a__sel(mark(x2), mark(x3))), MARK(sel(x2, x3)))
   A__SEL(s(sel(z0, z1)), cons(x1, sel(x2, x3))) -> c4(A__SEL(a__sel(mark(z0), mark(z1)), a__sel(mark(x2), mark(x3))), MARK(sel(x2, x3)))
   A__SEL(s(s(z0)), cons(x1, sel(x2, x3))) -> c4(A__SEL(s(mark(z0)), a__sel(mark(x2), mark(x3))), MARK(sel(x2, x3)))
   A__SEL(s(0), cons(x1, sel(x2, x3))) -> c4(A__SEL(0, a__sel(mark(x2), mark(x3))), MARK(sel(x2, x3)))
   A__SEL(s(x0), cons(x1, sel(x2, x3))) -> c4(MARK(sel(x2, x3)))
   A__SEL(s(cons(z0, z1)), cons(x1, sel(x2, x3))) -> c4(MARK(sel(x2, x3)))
   A__SEL(s(x0), cons(x1, cons(from(z0), x3))) -> c4(A__SEL(mark(x0), cons(a__from(mark(z0)), x3)), MARK(cons(from(z0), x3)))
   A__SEL(s(x0), cons(x1, cons(sel(z0, z1), x3))) -> c4(A__SEL(mark(x0), cons(a__sel(mark(z0), mark(z1)), x3)), MARK(cons(sel(z0, z1), x3)))
   A__SEL(s(x0), cons(x1, cons(cons(z0, z1), x3))) -> c4(A__SEL(mark(x0), cons(cons(mark(z0), z1), x3)), MARK(cons(cons(z0, z1), x3)))
   A__SEL(s(x0), cons(x1, cons(s(z0), x3))) -> c4(A__SEL(mark(x0), cons(s(mark(z0)), x3)), MARK(cons(s(z0), x3)))
   A__SEL(s(x0), cons(x1, cons(0, x3))) -> c4(A__SEL(mark(x0), cons(0, x3)), MARK(cons(0, x3)))
   A__SEL(s(from(z0)), cons(x1, cons(x2, x3))) -> c4(A__SEL(a__from(mark(z0)), cons(mark(x2), x3)), MARK(cons(x2, x3)))
   A__SEL(s(sel(z0, z1)), cons(x1, cons(x2, x3))) -> c4(A__SEL(a__sel(mark(z0), mark(z1)), cons(mark(x2), x3)), MARK(cons(x2, x3)))
   A__SEL(s(s(z0)), cons(x1, cons(x2, x3))) -> c4(A__SEL(s(mark(z0)), cons(mark(x2), x3)), MARK(cons(x2, x3)))
   A__SEL(s(0), cons(x1, cons(x2, x3))) -> c4(A__SEL(0, cons(mark(x2), x3)), MARK(cons(x2, x3)))
   A__SEL(s(x0), cons(x1, cons(x2, x3))) -> c4(MARK(cons(x2, x3)))
   A__SEL(s(cons(z0, z1)), cons(x1, cons(x2, x3))) -> c4(MARK(cons(x2, x3)))
   A__SEL(s(from(from(z0))), cons(x1, x2)) -> c4(A__SEL(a__from(a__from(mark(z0))), mark(x2)), MARK(x2))
   A__SEL(s(from(sel(z0, z1))), cons(x1, x2)) -> c4(A__SEL(a__from(a__sel(mark(z0), mark(z1))), mark(x2)), MARK(x2))
   A__SEL(s(from(cons(z0, z1))), cons(x1, x2)) -> c4(A__SEL(a__from(cons(mark(z0), z1)), mark(x2)), MARK(x2))
   A__SEL(s(from(s(z0))), cons(x1, x2)) -> c4(A__SEL(a__from(s(mark(z0))), mark(x2)), MARK(x2))
   A__SEL(s(from(0)), cons(x1, x2)) -> c4(A__SEL(a__from(0), mark(x2)), MARK(x2))
   A__SEL(s(from(x0)), cons(x1, s(z0))) -> c4(MARK(s(z0)))
   A__SEL(s(from(x0)), cons(x1, x2)) -> c4(MARK(x2))
   A__SEL(s(sel(x0, from(z0))), cons(x2, x3)) -> c4(A__SEL(a__sel(mark(x0), a__from(mark(z0))), mark(x3)), MARK(x3))
   A__SEL(s(sel(x0, sel(z0, z1))), cons(x2, x3)) -> c4(A__SEL(a__sel(mark(x0), a__sel(mark(z0), mark(z1))), mark(x3)), MARK(x3))
   A__SEL(s(sel(x0, cons(z0, z1))), cons(x2, x3)) -> c4(A__SEL(a__sel(mark(x0), cons(mark(z0), z1)), mark(x3)), MARK(x3))
   A__SEL(s(sel(x0, s(z0))), cons(x2, x3)) -> c4(A__SEL(a__sel(mark(x0), s(mark(z0))), mark(x3)), MARK(x3))
   A__SEL(s(sel(x0, 0)), cons(x2, x3)) -> c4(A__SEL(a__sel(mark(x0), 0), mark(x3)), MARK(x3))
   A__SEL(s(sel(from(z0), x1)), cons(x2, x3)) -> c4(A__SEL(a__sel(a__from(mark(z0)), mark(x1)), mark(x3)), MARK(x3))
   A__SEL(s(sel(sel(z0, z1), x1)), cons(x2, x3)) -> c4(A__SEL(a__sel(a__sel(mark(z0), mark(z1)), mark(x1)), mark(x3)), MARK(x3))
   A__SEL(s(sel(cons(z0, z1), x1)), cons(x2, x3)) -> c4(A__SEL(a__sel(cons(mark(z0), z1), mark(x1)), mark(x3)), MARK(x3))
   A__SEL(s(sel(s(z0), x1)), cons(x2, x3)) -> c4(A__SEL(a__sel(s(mark(z0)), mark(x1)), mark(x3)), MARK(x3))
   A__SEL(s(sel(0, x1)), cons(x2, x3)) -> c4(A__SEL(a__sel(0, mark(x1)), mark(x3)), MARK(x3))
   A__SEL(s(sel(x0, x1)), cons(x2, s(z0))) -> c4(MARK(s(z0)))
   A__SEL(s(sel(x0, x1)), cons(x2, x3)) -> c4(MARK(x3))
   A__SEL(s(s(from(z0))), cons(x1, x2)) -> c4(A__SEL(s(a__from(mark(z0))), mark(x2)), MARK(x2))
   A__SEL(s(s(sel(z0, z1))), cons(x1, x2)) -> c4(A__SEL(s(a__sel(mark(z0), mark(z1))), mark(x2)), MARK(x2))
   A__SEL(s(s(cons(z0, z1))), cons(x1, x2)) -> c4(A__SEL(s(cons(mark(z0), z1)), mark(x2)), MARK(x2))
   A__SEL(s(s(s(z0))), cons(x1, x2)) -> c4(A__SEL(s(s(mark(z0))), mark(x2)), MARK(x2))
   A__SEL(s(s(0)), cons(x1, x2)) -> c4(A__SEL(s(0), mark(x2)), MARK(x2))
   A__SEL(s(s(x0)), cons(x1, s(z0))) -> c4(MARK(s(z0)))
   A__SEL(s(0), cons(x0, s(z0))) -> c4(MARK(s(z0)))
   MARK(sel(x0, from(x1))) -> c7(A__SEL(mark(x0), cons(mark(mark(x1)), from(s(mark(x1))))), MARK(x0))
   MARK(sel(x0, from(from(z0)))) -> c7(A__SEL(mark(x0), a__from(a__from(mark(z0)))), MARK(x0))
   MARK(sel(x0, from(sel(z0, z1)))) -> c7(A__SEL(mark(x0), a__from(a__sel(mark(z0), mark(z1)))), MARK(x0))
   MARK(sel(x0, from(cons(z0, z1)))) -> c7(A__SEL(mark(x0), a__from(cons(mark(z0), z1))), MARK(x0))
   MARK(sel(x0, from(s(z0)))) -> c7(A__SEL(mark(x0), a__from(s(mark(z0)))), MARK(x0))
   MARK(sel(x0, from(0))) -> c7(A__SEL(mark(x0), a__from(0)), MARK(x0))
   MARK(sel(from(z0), from(x1))) -> c7(A__SEL(a__from(mark(z0)), a__from(mark(x1))), MARK(from(z0)))
   MARK(sel(sel(z0, z1), from(x1))) -> c7(A__SEL(a__sel(mark(z0), mark(z1)), a__from(mark(x1))), MARK(sel(z0, z1)))
   MARK(sel(s(z0), from(x1))) -> c7(A__SEL(s(mark(z0)), a__from(mark(x1))), MARK(s(z0)))
   MARK(sel(x0, from(x1))) -> c7(MARK(x0))
   MARK(sel(cons(z0, z1), from(x1))) -> c7(MARK(cons(z0, z1)))
   MARK(sel(0, from(x1))) -> c7(A__SEL(0, a__from(mark(x1))))
   MARK(sel(x0, sel(x1, from(z0)))) -> c7(A__SEL(mark(x0), a__sel(mark(x1), a__from(mark(z0)))), MARK(x0))
   MARK(sel(x0, sel(x1, sel(z0, z1)))) -> c7(A__SEL(mark(x0), a__sel(mark(x1), a__sel(mark(z0), mark(z1)))), MARK(x0))
   MARK(sel(x0, sel(x1, cons(z0, z1)))) -> c7(A__SEL(mark(x0), a__sel(mark(x1), cons(mark(z0), z1))), MARK(x0))
   MARK(sel(x0, sel(x1, s(z0)))) -> c7(A__SEL(mark(x0), a__sel(mark(x1), s(mark(z0)))), MARK(x0))
   MARK(sel(x0, sel(x1, 0))) -> c7(A__SEL(mark(x0), a__sel(mark(x1), 0)), MARK(x0))
   MARK(sel(x0, sel(from(z0), x2))) -> c7(A__SEL(mark(x0), a__sel(a__from(mark(z0)), mark(x2))), MARK(x0))
   MARK(sel(x0, sel(sel(z0, z1), x2))) -> c7(A__SEL(mark(x0), a__sel(a__sel(mark(z0), mark(z1)), mark(x2))), MARK(x0))
   MARK(sel(x0, sel(cons(z0, z1), x2))) -> c7(A__SEL(mark(x0), a__sel(cons(mark(z0), z1), mark(x2))), MARK(x0))
   MARK(sel(x0, sel(s(z0), x2))) -> c7(A__SEL(mark(x0), a__sel(s(mark(z0)), mark(x2))), MARK(x0))
   MARK(sel(x0, sel(0, x2))) -> c7(A__SEL(mark(x0), a__sel(0, mark(x2))), MARK(x0))
   MARK(sel(from(z0), sel(x1, x2))) -> c7(A__SEL(a__from(mark(z0)), a__sel(mark(x1), mark(x2))), MARK(from(z0)))
   MARK(sel(sel(z0, z1), sel(x1, x2))) -> c7(A__SEL(a__sel(mark(z0), mark(z1)), a__sel(mark(x1), mark(x2))), MARK(sel(z0, z1)))
   MARK(sel(s(z0), sel(x1, x2))) -> c7(A__SEL(s(mark(z0)), a__sel(mark(x1), mark(x2))), MARK(s(z0)))
   MARK(sel(x0, sel(x1, x2))) -> c7(MARK(x0))
   MARK(sel(cons(z0, z1), sel(x1, x2))) -> c7(MARK(cons(z0, z1)))
   MARK(sel(0, sel(x1, x2))) -> c7(A__SEL(0, a__sel(mark(x1), mark(x2))))
   MARK(sel(x0, cons(from(z0), x2))) -> c7(A__SEL(mark(x0), cons(a__from(mark(z0)), x2)), MARK(x0))
   MARK(sel(x0, cons(sel(z0, z1), x2))) -> c7(A__SEL(mark(x0), cons(a__sel(mark(z0), mark(z1)), x2)), MARK(x0))
   MARK(sel(x0, cons(cons(z0, z1), x2))) -> c7(A__SEL(mark(x0), cons(cons(mark(z0), z1), x2)), MARK(x0))
   MARK(sel(x0, cons(s(z0), x2))) -> c7(A__SEL(mark(x0), cons(s(mark(z0)), x2)), MARK(x0))
   MARK(sel(x0, cons(0, x2))) -> c7(A__SEL(mark(x0), cons(0, x2)), MARK(x0))
   MARK(sel(from(z0), cons(x1, x2))) -> c7(A__SEL(a__from(mark(z0)), cons(mark(x1), x2)), MARK(from(z0)))
   MARK(sel(sel(z0, z1), cons(x1, x2))) -> c7(A__SEL(a__sel(mark(z0), mark(z1)), cons(mark(x1), x2)), MARK(sel(z0, z1)))
   MARK(sel(s(z0), cons(x1, x2))) -> c7(A__SEL(s(mark(z0)), cons(mark(x1), x2)), MARK(s(z0)))
   MARK(sel(cons(z0, z1), cons(x1, x2))) -> c7(MARK(cons(z0, z1)))
   MARK(sel(0, cons(x1, x2))) -> c7(A__SEL(0, cons(mark(x1), x2)))
   MARK(sel(from(from(z0)), x1)) -> c7(A__SEL(a__from(a__from(mark(z0))), mark(x1)), MARK(from(from(z0))))
   MARK(sel(from(sel(z0, z1)), x1)) -> c7(A__SEL(a__from(a__sel(mark(z0), mark(z1))), mark(x1)), MARK(from(sel(z0, z1))))
   MARK(sel(from(cons(z0, z1)), x1)) -> c7(A__SEL(a__from(cons(mark(z0), z1)), mark(x1)), MARK(from(cons(z0, z1))))
   MARK(sel(from(s(z0)), x1)) -> c7(A__SEL(a__from(s(mark(z0))), mark(x1)), MARK(from(s(z0))))
   MARK(sel(from(0), x1)) -> c7(A__SEL(a__from(0), mark(x1)), MARK(from(0)))
   MARK(sel(from(x0), x1)) -> c7(MARK(from(x0)))
   MARK(sel(from(x0), s(z0))) -> c7(MARK(from(x0)))
   MARK(sel(from(x0), 0)) -> c7(MARK(from(x0)))
   MARK(sel(sel(x0, from(z0)), x2)) -> c7(A__SEL(a__sel(mark(x0), a__from(mark(z0))), mark(x2)), MARK(sel(x0, from(z0))))
   MARK(sel(sel(x0, sel(z0, z1)), x2)) -> c7(A__SEL(a__sel(mark(x0), a__sel(mark(z0), mark(z1))), mark(x2)), MARK(sel(x0, sel(z0, z1))))
   MARK(sel(sel(x0, cons(z0, z1)), x2)) -> c7(A__SEL(a__sel(mark(x0), cons(mark(z0), z1)), mark(x2)), MARK(sel(x0, cons(z0, z1))))
   MARK(sel(sel(x0, s(z0)), x2)) -> c7(A__SEL(a__sel(mark(x0), s(mark(z0))), mark(x2)), MARK(sel(x0, s(z0))))
   MARK(sel(sel(x0, 0), x2)) -> c7(A__SEL(a__sel(mark(x0), 0), mark(x2)), MARK(sel(x0, 0)))
   MARK(sel(sel(from(z0), x1), x2)) -> c7(A__SEL(a__sel(a__from(mark(z0)), mark(x1)), mark(x2)), MARK(sel(from(z0), x1)))
   MARK(sel(sel(sel(z0, z1), x1), x2)) -> c7(A__SEL(a__sel(a__sel(mark(z0), mark(z1)), mark(x1)), mark(x2)), MARK(sel(sel(z0, z1), x1)))
   MARK(sel(sel(cons(z0, z1), x1), x2)) -> c7(A__SEL(a__sel(cons(mark(z0), z1), mark(x1)), mark(x2)), MARK(sel(cons(z0, z1), x1)))
   MARK(sel(sel(s(z0), x1), x2)) -> c7(A__SEL(a__sel(s(mark(z0)), mark(x1)), mark(x2)), MARK(sel(s(z0), x1)))
   MARK(sel(sel(0, x1), x2)) -> c7(A__SEL(a__sel(0, mark(x1)), mark(x2)), MARK(sel(0, x1)))
   MARK(sel(sel(x0, x1), s(z0))) -> c7(MARK(sel(x0, x1)))
   MARK(sel(sel(x0, x1), 0)) -> c7(MARK(sel(x0, x1)))
   MARK(sel(sel(x0, x1), x2)) -> c7(MARK(sel(x0, x1)))
   MARK(sel(s(from(z0)), x1)) -> c7(A__SEL(s(a__from(mark(z0))), mark(x1)), MARK(s(from(z0))))
   MARK(sel(s(sel(z0, z1)), x1)) -> c7(A__SEL(s(a__sel(mark(z0), mark(z1))), mark(x1)), MARK(s(sel(z0, z1))))
   MARK(sel(s(cons(z0, z1)), x1)) -> c7(A__SEL(s(cons(mark(z0), z1)), mark(x1)), MARK(s(cons(z0, z1))))
   MARK(sel(s(s(z0)), x1)) -> c7(A__SEL(s(s(mark(z0))), mark(x1)), MARK(s(s(z0))))
   MARK(sel(s(0), x1)) -> c7(A__SEL(s(0), mark(x1)), MARK(s(0)))
   MARK(sel(s(x0), x1)) -> c7(MARK(s(x0)))
   MARK(sel(s(x0), s(z0))) -> c7(MARK(s(x0)))
   MARK(sel(s(x0), 0)) -> c7(MARK(s(x0)))
   MARK(sel(x0, from(x1))) -> c8(A__SEL(mark(x0), cons(mark(mark(x1)), from(s(mark(x1))))), MARK(from(x1)))
   MARK(sel(x0, from(from(z0)))) -> c8(A__SEL(mark(x0), a__from(a__from(mark(z0)))), MARK(from(from(z0))))
   MARK(sel(x0, from(sel(z0, z1)))) -> c8(A__SEL(mark(x0), a__from(a__sel(mark(z0), mark(z1)))), MARK(from(sel(z0, z1))))
   MARK(sel(x0, from(cons(z0, z1)))) -> c8(A__SEL(mark(x0), a__from(cons(mark(z0), z1))), MARK(from(cons(z0, z1))))
   MARK(sel(x0, from(s(z0)))) -> c8(A__SEL(mark(x0), a__from(s(mark(z0)))), MARK(from(s(z0))))
   MARK(sel(x0, from(0))) -> c8(A__SEL(mark(x0), a__from(0)), MARK(from(0)))
   MARK(sel(from(z0), from(x1))) -> c8(A__SEL(a__from(mark(z0)), a__from(mark(x1))), MARK(from(x1)))
   MARK(sel(sel(z0, z1), from(x1))) -> c8(A__SEL(a__sel(mark(z0), mark(z1)), a__from(mark(x1))), MARK(from(x1)))
   MARK(sel(s(z0), from(x1))) -> c8(A__SEL(s(mark(z0)), a__from(mark(x1))), MARK(from(x1)))
   MARK(sel(0, from(x1))) -> c8(A__SEL(0, a__from(mark(x1))), MARK(from(x1)))
   MARK(sel(x0, from(x1))) -> c8(MARK(from(x1)))
   MARK(sel(cons(z0, z1), from(x1))) -> c8(MARK(from(x1)))
   MARK(sel(x0, sel(x1, from(z0)))) -> c8(A__SEL(mark(x0), a__sel(mark(x1), a__from(mark(z0)))), MARK(sel(x1, from(z0))))
   MARK(sel(x0, sel(x1, sel(z0, z1)))) -> c8(A__SEL(mark(x0), a__sel(mark(x1), a__sel(mark(z0), mark(z1)))), MARK(sel(x1, sel(z0, z1))))
   MARK(sel(x0, sel(x1, cons(z0, z1)))) -> c8(A__SEL(mark(x0), a__sel(mark(x1), cons(mark(z0), z1))), MARK(sel(x1, cons(z0, z1))))
   MARK(sel(x0, sel(x1, s(z0)))) -> c8(A__SEL(mark(x0), a__sel(mark(x1), s(mark(z0)))), MARK(sel(x1, s(z0))))
   MARK(sel(x0, sel(x1, 0))) -> c8(A__SEL(mark(x0), a__sel(mark(x1), 0)), MARK(sel(x1, 0)))
   MARK(sel(x0, sel(from(z0), x2))) -> c8(A__SEL(mark(x0), a__sel(a__from(mark(z0)), mark(x2))), MARK(sel(from(z0), x2)))
   MARK(sel(x0, sel(sel(z0, z1), x2))) -> c8(A__SEL(mark(x0), a__sel(a__sel(mark(z0), mark(z1)), mark(x2))), MARK(sel(sel(z0, z1), x2)))
   MARK(sel(x0, sel(cons(z0, z1), x2))) -> c8(A__SEL(mark(x0), a__sel(cons(mark(z0), z1), mark(x2))), MARK(sel(cons(z0, z1), x2)))
   MARK(sel(x0, sel(s(z0), x2))) -> c8(A__SEL(mark(x0), a__sel(s(mark(z0)), mark(x2))), MARK(sel(s(z0), x2)))
   MARK(sel(x0, sel(0, x2))) -> c8(A__SEL(mark(x0), a__sel(0, mark(x2))), MARK(sel(0, x2)))
   MARK(sel(from(z0), sel(x1, x2))) -> c8(A__SEL(a__from(mark(z0)), a__sel(mark(x1), mark(x2))), MARK(sel(x1, x2)))
   MARK(sel(sel(z0, z1), sel(x1, x2))) -> c8(A__SEL(a__sel(mark(z0), mark(z1)), a__sel(mark(x1), mark(x2))), MARK(sel(x1, x2)))
   MARK(sel(s(z0), sel(x1, x2))) -> c8(A__SEL(s(mark(z0)), a__sel(mark(x1), mark(x2))), MARK(sel(x1, x2)))
   MARK(sel(0, sel(x1, x2))) -> c8(A__SEL(0, a__sel(mark(x1), mark(x2))), MARK(sel(x1, x2)))
   MARK(sel(x0, sel(x1, x2))) -> c8(MARK(sel(x1, x2)))
   MARK(sel(cons(z0, z1), sel(x1, x2))) -> c8(MARK(sel(x1, x2)))
   MARK(sel(x0, cons(from(z0), x2))) -> c8(A__SEL(mark(x0), cons(a__from(mark(z0)), x2)), MARK(cons(from(z0), x2)))
   MARK(sel(x0, cons(sel(z0, z1), x2))) -> c8(A__SEL(mark(x0), cons(a__sel(mark(z0), mark(z1)), x2)), MARK(cons(sel(z0, z1), x2)))
   MARK(sel(x0, cons(cons(z0, z1), x2))) -> c8(A__SEL(mark(x0), cons(cons(mark(z0), z1), x2)), MARK(cons(cons(z0, z1), x2)))
   MARK(sel(x0, cons(s(z0), x2))) -> c8(A__SEL(mark(x0), cons(s(mark(z0)), x2)), MARK(cons(s(z0), x2)))
   MARK(sel(x0, cons(0, x2))) -> c8(A__SEL(mark(x0), cons(0, x2)), MARK(cons(0, x2)))
   MARK(sel(from(z0), cons(x1, x2))) -> c8(A__SEL(a__from(mark(z0)), cons(mark(x1), x2)), MARK(cons(x1, x2)))
   MARK(sel(sel(z0, z1), cons(x1, x2))) -> c8(A__SEL(a__sel(mark(z0), mark(z1)), cons(mark(x1), x2)), MARK(cons(x1, x2)))
   MARK(sel(s(z0), cons(x1, x2))) -> c8(A__SEL(s(mark(z0)), cons(mark(x1), x2)), MARK(cons(x1, x2)))
   MARK(sel(0, cons(x1, x2))) -> c8(A__SEL(0, cons(mark(x1), x2)), MARK(cons(x1, x2)))
   MARK(sel(x0, cons(x1, x2))) -> c8(MARK(cons(x1, x2)))
   MARK(sel(cons(z0, z1), cons(x1, x2))) -> c8(MARK(cons(x1, x2)))
   MARK(sel(from(from(z0)), x1)) -> c8(A__SEL(a__from(a__from(mark(z0))), mark(x1)), MARK(x1))
   MARK(sel(from(sel(z0, z1)), x1)) -> c8(A__SEL(a__from(a__sel(mark(z0), mark(z1))), mark(x1)), MARK(x1))
   MARK(sel(from(cons(z0, z1)), x1)) -> c8(A__SEL(a__from(cons(mark(z0), z1)), mark(x1)), MARK(x1))
   MARK(sel(from(s(z0)), x1)) -> c8(A__SEL(a__from(s(mark(z0))), mark(x1)), MARK(x1))
   MARK(sel(from(0), x1)) -> c8(A__SEL(a__from(0), mark(x1)), MARK(x1))
   MARK(sel(from(x0), s(z0))) -> c8(MARK(s(z0)))
   MARK(sel(from(x0), x1)) -> c8(MARK(x1))
   MARK(sel(sel(x0, from(z0)), x2)) -> c8(A__SEL(a__sel(mark(x0), a__from(mark(z0))), mark(x2)), MARK(x2))
   MARK(sel(sel(x0, sel(z0, z1)), x2)) -> c8(A__SEL(a__sel(mark(x0), a__sel(mark(z0), mark(z1))), mark(x2)), MARK(x2))
   MARK(sel(sel(x0, cons(z0, z1)), x2)) -> c8(A__SEL(a__sel(mark(x0), cons(mark(z0), z1)), mark(x2)), MARK(x2))
   MARK(sel(sel(x0, s(z0)), x2)) -> c8(A__SEL(a__sel(mark(x0), s(mark(z0))), mark(x2)), MARK(x2))
   MARK(sel(sel(x0, 0), x2)) -> c8(A__SEL(a__sel(mark(x0), 0), mark(x2)), MARK(x2))
   MARK(sel(sel(from(z0), x1), x2)) -> c8(A__SEL(a__sel(a__from(mark(z0)), mark(x1)), mark(x2)), MARK(x2))
   MARK(sel(sel(sel(z0, z1), x1), x2)) -> c8(A__SEL(a__sel(a__sel(mark(z0), mark(z1)), mark(x1)), mark(x2)), MARK(x2))
   MARK(sel(sel(cons(z0, z1), x1), x2)) -> c8(A__SEL(a__sel(cons(mark(z0), z1), mark(x1)), mark(x2)), MARK(x2))
   MARK(sel(sel(s(z0), x1), x2)) -> c8(A__SEL(a__sel(s(mark(z0)), mark(x1)), mark(x2)), MARK(x2))
   MARK(sel(sel(0, x1), x2)) -> c8(A__SEL(a__sel(0, mark(x1)), mark(x2)), MARK(x2))
   MARK(sel(sel(x0, x1), s(z0))) -> c8(MARK(s(z0)))
   MARK(sel(sel(x0, x1), x2)) -> c8(MARK(x2))
   MARK(sel(s(x0), s(z0))) -> c8(A__SEL(s(mark(x0)), s(mark(z0))), MARK(s(z0)))
   MARK(sel(s(from(z0)), x1)) -> c8(A__SEL(s(a__from(mark(z0))), mark(x1)), MARK(x1))
   MARK(sel(s(sel(z0, z1)), x1)) -> c8(A__SEL(s(a__sel(mark(z0), mark(z1))), mark(x1)), MARK(x1))
   MARK(sel(s(cons(z0, z1)), x1)) -> c8(A__SEL(s(cons(mark(z0), z1)), mark(x1)), MARK(x1))
   MARK(sel(s(s(z0)), x1)) -> c8(A__SEL(s(s(mark(z0))), mark(x1)), MARK(x1))
   MARK(sel(s(0), x1)) -> c8(A__SEL(s(0), mark(x1)), MARK(x1))
K tuples:none
Defined Rule Symbols:   a__from_1, a__sel_2, mark_1

Defined Pair Symbols:   A__FROM_1, A__SEL_2, MARK_1

Compound Symbols:   c_1, c2_1, c6_2, c9_1, c10_1, c3_1, c4_1, c7_1, c8_2, c8_1, c3_2, c4_2, c7_2


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

(198)
Obligation:
Complexity Dependency Tuples Problem

Rules:
   a__from(z0) -> cons(mark(z0), from(s(z0)))
   a__from(z0) -> from(z0)
   a__sel(0, cons(z0, z1)) -> mark(z0)
   a__sel(s(z0), cons(z1, z2)) -> a__sel(mark(z0), mark(z2))
   a__sel(z0, z1) -> sel(z0, z1)
   mark(from(z0)) -> a__from(mark(z0))
   mark(sel(z0, z1)) -> a__sel(mark(z0), mark(z1))
   mark(cons(z0, z1)) -> cons(mark(z0), z1)
   mark(s(z0)) -> s(mark(z0))
   mark(0) -> 0
Tuples:
   A__FROM(z0) -> c(MARK(z0))
   A__SEL(0, cons(z0, z1)) -> c2(MARK(z0))
   MARK(from(z0)) -> c6(A__FROM(mark(z0)), MARK(z0))
   MARK(cons(z0, z1)) -> c9(MARK(z0))
   MARK(s(z0)) -> c10(MARK(z0))
   A__SEL(s(x0), cons(x1, s(z0))) -> c3(MARK(x0))
   A__SEL(s(x0), cons(x1, 0)) -> c3(MARK(x0))
   A__SEL(s(cons(z0, z1)), cons(x1, x2)) -> c3(MARK(cons(z0, z1)))
   A__SEL(s(x0), cons(x1, s(z0))) -> c4(MARK(s(z0)))
   A__SEL(s(cons(z0, z1)), cons(x1, x2)) -> c4(MARK(x2))
   MARK(sel(x0, s(z0))) -> c7(MARK(x0))
   MARK(sel(x0, 0)) -> c7(MARK(x0))
   MARK(sel(cons(z0, z1), x1)) -> c7(MARK(cons(z0, z1)))
   MARK(sel(0, x1)) -> c8(A__SEL(0, mark(x1)), MARK(x1))
   MARK(sel(x0, s(z0))) -> c8(MARK(s(z0)))
   MARK(sel(cons(z0, z1), x1)) -> c8(MARK(x1))
   A__SEL(s(x0), cons(x1, from(x2))) -> c3(A__SEL(mark(x0), cons(mark(mark(x2)), from(s(mark(x2))))), MARK(x0))
   A__SEL(s(x0), cons(x1, from(from(z0)))) -> c3(A__SEL(mark(x0), a__from(a__from(mark(z0)))), MARK(x0))
   A__SEL(s(x0), cons(x1, from(sel(z0, z1)))) -> c3(A__SEL(mark(x0), a__from(a__sel(mark(z0), mark(z1)))), MARK(x0))
   A__SEL(s(x0), cons(x1, from(cons(z0, z1)))) -> c3(A__SEL(mark(x0), a__from(cons(mark(z0), z1))), MARK(x0))
   A__SEL(s(x0), cons(x1, from(s(z0)))) -> c3(A__SEL(mark(x0), a__from(s(mark(z0)))), MARK(x0))
   A__SEL(s(x0), cons(x1, from(0))) -> c3(A__SEL(mark(x0), a__from(0)), MARK(x0))
   A__SEL(s(from(z0)), cons(x1, from(x2))) -> c3(A__SEL(a__from(mark(z0)), a__from(mark(x2))), MARK(from(z0)))
   A__SEL(s(sel(z0, z1)), cons(x1, from(x2))) -> c3(A__SEL(a__sel(mark(z0), mark(z1)), a__from(mark(x2))), MARK(sel(z0, z1)))
   A__SEL(s(s(z0)), cons(x1, from(x2))) -> c3(A__SEL(s(mark(z0)), a__from(mark(x2))), MARK(s(z0)))
   A__SEL(s(x0), cons(x1, from(x2))) -> c3(MARK(x0))
   A__SEL(s(cons(z0, z1)), cons(x1, from(x2))) -> c3(MARK(cons(z0, z1)))
   A__SEL(s(0), cons(x1, from(x2))) -> c3(A__SEL(0, a__from(mark(x2))))
   A__SEL(s(x0), cons(x1, sel(x2, from(z0)))) -> c3(A__SEL(mark(x0), a__sel(mark(x2), a__from(mark(z0)))), MARK(x0))
   A__SEL(s(x0), cons(x1, sel(x2, sel(z0, z1)))) -> c3(A__SEL(mark(x0), a__sel(mark(x2), a__sel(mark(z0), mark(z1)))), MARK(x0))
   A__SEL(s(x0), cons(x1, sel(x2, cons(z0, z1)))) -> c3(A__SEL(mark(x0), a__sel(mark(x2), cons(mark(z0), z1))), MARK(x0))
   A__SEL(s(x0), cons(x1, sel(x2, s(z0)))) -> c3(A__SEL(mark(x0), a__sel(mark(x2), s(mark(z0)))), MARK(x0))
   A__SEL(s(x0), cons(x1, sel(x2, 0))) -> c3(A__SEL(mark(x0), a__sel(mark(x2), 0)), MARK(x0))
   A__SEL(s(x0), cons(x1, sel(from(z0), x3))) -> c3(A__SEL(mark(x0), a__sel(a__from(mark(z0)), mark(x3))), MARK(x0))
   A__SEL(s(x0), cons(x1, sel(sel(z0, z1), x3))) -> c3(A__SEL(mark(x0), a__sel(a__sel(mark(z0), mark(z1)), mark(x3))), MARK(x0))
   A__SEL(s(x0), cons(x1, sel(cons(z0, z1), x3))) -> c3(A__SEL(mark(x0), a__sel(cons(mark(z0), z1), mark(x3))), MARK(x0))
   A__SEL(s(x0), cons(x1, sel(s(z0), x3))) -> c3(A__SEL(mark(x0), a__sel(s(mark(z0)), mark(x3))), MARK(x0))
   A__SEL(s(x0), cons(x1, sel(0, x3))) -> c3(A__SEL(mark(x0), a__sel(0, mark(x3))), MARK(x0))
   A__SEL(s(from(z0)), cons(x1, sel(x2, x3))) -> c3(A__SEL(a__from(mark(z0)), a__sel(mark(x2), mark(x3))), MARK(from(z0)))
   A__SEL(s(sel(z0, z1)), cons(x1, sel(x2, x3))) -> c3(A__SEL(a__sel(mark(z0), mark(z1)), a__sel(mark(x2), mark(x3))), MARK(sel(z0, z1)))
   A__SEL(s(s(z0)), cons(x1, sel(x2, x3))) -> c3(A__SEL(s(mark(z0)), a__sel(mark(x2), mark(x3))), MARK(s(z0)))
   A__SEL(s(x0), cons(x1, sel(x2, x3))) -> c3(MARK(x0))
   A__SEL(s(cons(z0, z1)), cons(x1, sel(x2, x3))) -> c3(MARK(cons(z0, z1)))
   A__SEL(s(0), cons(x1, sel(x2, x3))) -> c3(A__SEL(0, a__sel(mark(x2), mark(x3))))
   A__SEL(s(x0), cons(x1, cons(from(z0), x3))) -> c3(A__SEL(mark(x0), cons(a__from(mark(z0)), x3)), MARK(x0))
   A__SEL(s(x0), cons(x1, cons(sel(z0, z1), x3))) -> c3(A__SEL(mark(x0), cons(a__sel(mark(z0), mark(z1)), x3)), MARK(x0))
   A__SEL(s(x0), cons(x1, cons(cons(z0, z1), x3))) -> c3(A__SEL(mark(x0), cons(cons(mark(z0), z1), x3)), MARK(x0))
   A__SEL(s(x0), cons(x1, cons(s(z0), x3))) -> c3(A__SEL(mark(x0), cons(s(mark(z0)), x3)), MARK(x0))
   A__SEL(s(x0), cons(x1, cons(0, x3))) -> c3(A__SEL(mark(x0), cons(0, x3)), MARK(x0))
   A__SEL(s(from(z0)), cons(x1, cons(x2, x3))) -> c3(A__SEL(a__from(mark(z0)), cons(mark(x2), x3)), MARK(from(z0)))
   A__SEL(s(sel(z0, z1)), cons(x1, cons(x2, x3))) -> c3(A__SEL(a__sel(mark(z0), mark(z1)), cons(mark(x2), x3)), MARK(sel(z0, z1)))
   A__SEL(s(s(z0)), cons(x1, cons(x2, x3))) -> c3(A__SEL(s(mark(z0)), cons(mark(x2), x3)), MARK(s(z0)))
   A__SEL(s(cons(z0, z1)), cons(x1, cons(x2, x3))) -> c3(MARK(cons(z0, z1)))
   A__SEL(s(0), cons(x1, cons(x2, x3))) -> c3(A__SEL(0, cons(mark(x2), x3)))
   A__SEL(s(from(from(z0))), cons(x1, x2)) -> c3(A__SEL(a__from(a__from(mark(z0))), mark(x2)), MARK(from(from(z0))))
   A__SEL(s(from(sel(z0, z1))), cons(x1, x2)) -> c3(A__SEL(a__from(a__sel(mark(z0), mark(z1))), mark(x2)), MARK(from(sel(z0, z1))))
   A__SEL(s(from(cons(z0, z1))), cons(x1, x2)) -> c3(A__SEL(a__from(cons(mark(z0), z1)), mark(x2)), MARK(from(cons(z0, z1))))
   A__SEL(s(from(s(z0))), cons(x1, x2)) -> c3(A__SEL(a__from(s(mark(z0))), mark(x2)), MARK(from(s(z0))))
   A__SEL(s(from(0)), cons(x1, x2)) -> c3(A__SEL(a__from(0), mark(x2)), MARK(from(0)))
   A__SEL(s(from(x0)), cons(x1, x2)) -> c3(MARK(from(x0)))
   A__SEL(s(from(x0)), cons(x1, s(z0))) -> c3(MARK(from(x0)))
   A__SEL(s(from(x0)), cons(x1, 0)) -> c3(MARK(from(x0)))
   A__SEL(s(sel(x0, from(z0))), cons(x2, x3)) -> c3(A__SEL(a__sel(mark(x0), a__from(mark(z0))), mark(x3)), MARK(sel(x0, from(z0))))
   A__SEL(s(sel(x0, sel(z0, z1))), cons(x2, x3)) -> c3(A__SEL(a__sel(mark(x0), a__sel(mark(z0), mark(z1))), mark(x3)), MARK(sel(x0, sel(z0, z1))))
   A__SEL(s(sel(x0, cons(z0, z1))), cons(x2, x3)) -> c3(A__SEL(a__sel(mark(x0), cons(mark(z0), z1)), mark(x3)), MARK(sel(x0, cons(z0, z1))))
   A__SEL(s(sel(x0, s(z0))), cons(x2, x3)) -> c3(A__SEL(a__sel(mark(x0), s(mark(z0))), mark(x3)), MARK(sel(x0, s(z0))))
   A__SEL(s(sel(x0, 0)), cons(x2, x3)) -> c3(A__SEL(a__sel(mark(x0), 0), mark(x3)), MARK(sel(x0, 0)))
   A__SEL(s(sel(from(z0), x1)), cons(x2, x3)) -> c3(A__SEL(a__sel(a__from(mark(z0)), mark(x1)), mark(x3)), MARK(sel(from(z0), x1)))
   A__SEL(s(sel(sel(z0, z1), x1)), cons(x2, x3)) -> c3(A__SEL(a__sel(a__sel(mark(z0), mark(z1)), mark(x1)), mark(x3)), MARK(sel(sel(z0, z1), x1)))
   A__SEL(s(sel(cons(z0, z1), x1)), cons(x2, x3)) -> c3(A__SEL(a__sel(cons(mark(z0), z1), mark(x1)), mark(x3)), MARK(sel(cons(z0, z1), x1)))
   A__SEL(s(sel(s(z0), x1)), cons(x2, x3)) -> c3(A__SEL(a__sel(s(mark(z0)), mark(x1)), mark(x3)), MARK(sel(s(z0), x1)))
   A__SEL(s(sel(0, x1)), cons(x2, x3)) -> c3(A__SEL(a__sel(0, mark(x1)), mark(x3)), MARK(sel(0, x1)))
   A__SEL(s(sel(x0, x1)), cons(x2, s(z0))) -> c3(MARK(sel(x0, x1)))
   A__SEL(s(sel(x0, x1)), cons(x2, 0)) -> c3(MARK(sel(x0, x1)))
   A__SEL(s(sel(x0, x1)), cons(x2, x3)) -> c3(MARK(sel(x0, x1)))
   A__SEL(s(s(from(z0))), cons(x1, x2)) -> c3(A__SEL(s(a__from(mark(z0))), mark(x2)), MARK(s(from(z0))))
   A__SEL(s(s(sel(z0, z1))), cons(x1, x2)) -> c3(A__SEL(s(a__sel(mark(z0), mark(z1))), mark(x2)), MARK(s(sel(z0, z1))))
   A__SEL(s(s(cons(z0, z1))), cons(x1, x2)) -> c3(A__SEL(s(cons(mark(z0), z1)), mark(x2)), MARK(s(cons(z0, z1))))
   A__SEL(s(s(s(z0))), cons(x1, x2)) -> c3(A__SEL(s(s(mark(z0))), mark(x2)), MARK(s(s(z0))))
   A__SEL(s(s(0)), cons(x1, x2)) -> c3(A__SEL(s(0), mark(x2)), MARK(s(0)))
   A__SEL(s(s(x0)), cons(x1, x2)) -> c3(MARK(s(x0)))
   A__SEL(s(s(x0)), cons(x1, s(z0))) -> c3(MARK(s(x0)))
   A__SEL(s(s(x0)), cons(x1, 0)) -> c3(MARK(s(x0)))
   A__SEL(s(x0), cons(x1, from(x2))) -> c4(A__SEL(mark(x0), cons(mark(mark(x2)), from(s(mark(x2))))), MARK(from(x2)))
   A__SEL(s(x0), cons(x1, from(from(z0)))) -> c4(A__SEL(mark(x0), a__from(a__from(mark(z0)))), MARK(from(from(z0))))
   A__SEL(s(x0), cons(x1, from(sel(z0, z1)))) -> c4(A__SEL(mark(x0), a__from(a__sel(mark(z0), mark(z1)))), MARK(from(sel(z0, z1))))
   A__SEL(s(x0), cons(x1, from(cons(z0, z1)))) -> c4(A__SEL(mark(x0), a__from(cons(mark(z0), z1))), MARK(from(cons(z0, z1))))
   A__SEL(s(x0), cons(x1, from(s(z0)))) -> c4(A__SEL(mark(x0), a__from(s(mark(z0)))), MARK(from(s(z0))))
   A__SEL(s(x0), cons(x1, from(0))) -> c4(A__SEL(mark(x0), a__from(0)), MARK(from(0)))
   A__SEL(s(from(z0)), cons(x1, from(x2))) -> c4(A__SEL(a__from(mark(z0)), a__from(mark(x2))), MARK(from(x2)))
   A__SEL(s(sel(z0, z1)), cons(x1, from(x2))) -> c4(A__SEL(a__sel(mark(z0), mark(z1)), a__from(mark(x2))), MARK(from(x2)))
   A__SEL(s(s(z0)), cons(x1, from(x2))) -> c4(A__SEL(s(mark(z0)), a__from(mark(x2))), MARK(from(x2)))
   A__SEL(s(0), cons(x1, from(x2))) -> c4(A__SEL(0, a__from(mark(x2))), MARK(from(x2)))
   A__SEL(s(x0), cons(x1, from(x2))) -> c4(MARK(from(x2)))
   A__SEL(s(cons(z0, z1)), cons(x1, from(x2))) -> c4(MARK(from(x2)))
   A__SEL(s(x0), cons(x1, sel(x2, from(z0)))) -> c4(A__SEL(mark(x0), a__sel(mark(x2), a__from(mark(z0)))), MARK(sel(x2, from(z0))))
   A__SEL(s(x0), cons(x1, sel(x2, sel(z0, z1)))) -> c4(A__SEL(mark(x0), a__sel(mark(x2), a__sel(mark(z0), mark(z1)))), MARK(sel(x2, sel(z0, z1))))
   A__SEL(s(x0), cons(x1, sel(x2, cons(z0, z1)))) -> c4(A__SEL(mark(x0), a__sel(mark(x2), cons(mark(z0), z1))), MARK(sel(x2, cons(z0, z1))))
   A__SEL(s(x0), cons(x1, sel(x2, s(z0)))) -> c4(A__SEL(mark(x0), a__sel(mark(x2), s(mark(z0)))), MARK(sel(x2, s(z0))))
   A__SEL(s(x0), cons(x1, sel(x2, 0))) -> c4(A__SEL(mark(x0), a__sel(mark(x2), 0)), MARK(sel(x2, 0)))
   A__SEL(s(x0), cons(x1, sel(from(z0), x3))) -> c4(A__SEL(mark(x0), a__sel(a__from(mark(z0)), mark(x3))), MARK(sel(from(z0), x3)))
   A__SEL(s(x0), cons(x1, sel(sel(z0, z1), x3))) -> c4(A__SEL(mark(x0), a__sel(a__sel(mark(z0), mark(z1)), mark(x3))), MARK(sel(sel(z0, z1), x3)))
   A__SEL(s(x0), cons(x1, sel(cons(z0, z1), x3))) -> c4(A__SEL(mark(x0), a__sel(cons(mark(z0), z1), mark(x3))), MARK(sel(cons(z0, z1), x3)))
   A__SEL(s(x0), cons(x1, sel(s(z0), x3))) -> c4(A__SEL(mark(x0), a__sel(s(mark(z0)), mark(x3))), MARK(sel(s(z0), x3)))
   A__SEL(s(x0), cons(x1, sel(0, x3))) -> c4(A__SEL(mark(x0), a__sel(0, mark(x3))), MARK(sel(0, x3)))
   A__SEL(s(from(z0)), cons(x1, sel(x2, x3))) -> c4(A__SEL(a__from(mark(z0)), a__sel(mark(x2), mark(x3))), MARK(sel(x2, x3)))
   A__SEL(s(sel(z0, z1)), cons(x1, sel(x2, x3))) -> c4(A__SEL(a__sel(mark(z0), mark(z1)), a__sel(mark(x2), mark(x3))), MARK(sel(x2, x3)))
   A__SEL(s(s(z0)), cons(x1, sel(x2, x3))) -> c4(A__SEL(s(mark(z0)), a__sel(mark(x2), mark(x3))), MARK(sel(x2, x3)))
   A__SEL(s(0), cons(x1, sel(x2, x3))) -> c4(A__SEL(0, a__sel(mark(x2), mark(x3))), MARK(sel(x2, x3)))
   A__SEL(s(x0), cons(x1, sel(x2, x3))) -> c4(MARK(sel(x2, x3)))
   A__SEL(s(cons(z0, z1)), cons(x1, sel(x2, x3))) -> c4(MARK(sel(x2, x3)))
   A__SEL(s(x0), cons(x1, cons(from(z0), x3))) -> c4(A__SEL(mark(x0), cons(a__from(mark(z0)), x3)), MARK(cons(from(z0), x3)))
   A__SEL(s(x0), cons(x1, cons(sel(z0, z1), x3))) -> c4(A__SEL(mark(x0), cons(a__sel(mark(z0), mark(z1)), x3)), MARK(cons(sel(z0, z1), x3)))
   A__SEL(s(x0), cons(x1, cons(cons(z0, z1), x3))) -> c4(A__SEL(mark(x0), cons(cons(mark(z0), z1), x3)), MARK(cons(cons(z0, z1), x3)))
   A__SEL(s(x0), cons(x1, cons(s(z0), x3))) -> c4(A__SEL(mark(x0), cons(s(mark(z0)), x3)), MARK(cons(s(z0), x3)))
   A__SEL(s(x0), cons(x1, cons(0, x3))) -> c4(A__SEL(mark(x0), cons(0, x3)), MARK(cons(0, x3)))
   A__SEL(s(from(z0)), cons(x1, cons(x2, x3))) -> c4(A__SEL(a__from(mark(z0)), cons(mark(x2), x3)), MARK(cons(x2, x3)))
   A__SEL(s(sel(z0, z1)), cons(x1, cons(x2, x3))) -> c4(A__SEL(a__sel(mark(z0), mark(z1)), cons(mark(x2), x3)), MARK(cons(x2, x3)))
   A__SEL(s(s(z0)), cons(x1, cons(x2, x3))) -> c4(A__SEL(s(mark(z0)), cons(mark(x2), x3)), MARK(cons(x2, x3)))
   A__SEL(s(0), cons(x1, cons(x2, x3))) -> c4(A__SEL(0, cons(mark(x2), x3)), MARK(cons(x2, x3)))
   A__SEL(s(x0), cons(x1, cons(x2, x3))) -> c4(MARK(cons(x2, x3)))
   A__SEL(s(cons(z0, z1)), cons(x1, cons(x2, x3))) -> c4(MARK(cons(x2, x3)))
   A__SEL(s(from(from(z0))), cons(x1, x2)) -> c4(A__SEL(a__from(a__from(mark(z0))), mark(x2)), MARK(x2))
   A__SEL(s(from(sel(z0, z1))), cons(x1, x2)) -> c4(A__SEL(a__from(a__sel(mark(z0), mark(z1))), mark(x2)), MARK(x2))
   A__SEL(s(from(cons(z0, z1))), cons(x1, x2)) -> c4(A__SEL(a__from(cons(mark(z0), z1)), mark(x2)), MARK(x2))
   A__SEL(s(from(s(z0))), cons(x1, x2)) -> c4(A__SEL(a__from(s(mark(z0))), mark(x2)), MARK(x2))
   A__SEL(s(from(0)), cons(x1, x2)) -> c4(A__SEL(a__from(0), mark(x2)), MARK(x2))
   A__SEL(s(from(x0)), cons(x1, s(z0))) -> c4(MARK(s(z0)))
   A__SEL(s(from(x0)), cons(x1, x2)) -> c4(MARK(x2))
   A__SEL(s(sel(x0, from(z0))), cons(x2, x3)) -> c4(A__SEL(a__sel(mark(x0), a__from(mark(z0))), mark(x3)), MARK(x3))
   A__SEL(s(sel(x0, sel(z0, z1))), cons(x2, x3)) -> c4(A__SEL(a__sel(mark(x0), a__sel(mark(z0), mark(z1))), mark(x3)), MARK(x3))
   A__SEL(s(sel(x0, cons(z0, z1))), cons(x2, x3)) -> c4(A__SEL(a__sel(mark(x0), cons(mark(z0), z1)), mark(x3)), MARK(x3))
   A__SEL(s(sel(x0, s(z0))), cons(x2, x3)) -> c4(A__SEL(a__sel(mark(x0), s(mark(z0))), mark(x3)), MARK(x3))
   A__SEL(s(sel(x0, 0)), cons(x2, x3)) -> c4(A__SEL(a__sel(mark(x0), 0), mark(x3)), MARK(x3))
   A__SEL(s(sel(from(z0), x1)), cons(x2, x3)) -> c4(A__SEL(a__sel(a__from(mark(z0)), mark(x1)), mark(x3)), MARK(x3))
   A__SEL(s(sel(sel(z0, z1), x1)), cons(x2, x3)) -> c4(A__SEL(a__sel(a__sel(mark(z0), mark(z1)), mark(x1)), mark(x3)), MARK(x3))
   A__SEL(s(sel(cons(z0, z1), x1)), cons(x2, x3)) -> c4(A__SEL(a__sel(cons(mark(z0), z1), mark(x1)), mark(x3)), MARK(x3))
   A__SEL(s(sel(s(z0), x1)), cons(x2, x3)) -> c4(A__SEL(a__sel(s(mark(z0)), mark(x1)), mark(x3)), MARK(x3))
   A__SEL(s(sel(0, x1)), cons(x2, x3)) -> c4(A__SEL(a__sel(0, mark(x1)), mark(x3)), MARK(x3))
   A__SEL(s(sel(x0, x1)), cons(x2, s(z0))) -> c4(MARK(s(z0)))
   A__SEL(s(sel(x0, x1)), cons(x2, x3)) -> c4(MARK(x3))
   A__SEL(s(s(from(z0))), cons(x1, x2)) -> c4(A__SEL(s(a__from(mark(z0))), mark(x2)), MARK(x2))
   A__SEL(s(s(sel(z0, z1))), cons(x1, x2)) -> c4(A__SEL(s(a__sel(mark(z0), mark(z1))), mark(x2)), MARK(x2))
   A__SEL(s(s(cons(z0, z1))), cons(x1, x2)) -> c4(A__SEL(s(cons(mark(z0), z1)), mark(x2)), MARK(x2))
   A__SEL(s(s(s(z0))), cons(x1, x2)) -> c4(A__SEL(s(s(mark(z0))), mark(x2)), MARK(x2))
   A__SEL(s(s(0)), cons(x1, x2)) -> c4(A__SEL(s(0), mark(x2)), MARK(x2))
   A__SEL(s(s(x0)), cons(x1, s(z0))) -> c4(MARK(s(z0)))
   A__SEL(s(0), cons(x0, s(z0))) -> c4(MARK(s(z0)))
   MARK(sel(x0, from(x1))) -> c7(A__SEL(mark(x0), cons(mark(mark(x1)), from(s(mark(x1))))), MARK(x0))
   MARK(sel(x0, from(from(z0)))) -> c7(A__SEL(mark(x0), a__from(a__from(mark(z0)))), MARK(x0))
   MARK(sel(x0, from(sel(z0, z1)))) -> c7(A__SEL(mark(x0), a__from(a__sel(mark(z0), mark(z1)))), MARK(x0))
   MARK(sel(x0, from(cons(z0, z1)))) -> c7(A__SEL(mark(x0), a__from(cons(mark(z0), z1))), MARK(x0))
   MARK(sel(x0, from(s(z0)))) -> c7(A__SEL(mark(x0), a__from(s(mark(z0)))), MARK(x0))
   MARK(sel(x0, from(0))) -> c7(A__SEL(mark(x0), a__from(0)), MARK(x0))
   MARK(sel(from(z0), from(x1))) -> c7(A__SEL(a__from(mark(z0)), a__from(mark(x1))), MARK(from(z0)))
   MARK(sel(sel(z0, z1), from(x1))) -> c7(A__SEL(a__sel(mark(z0), mark(z1)), a__from(mark(x1))), MARK(sel(z0, z1)))
   MARK(sel(s(z0), from(x1))) -> c7(A__SEL(s(mark(z0)), a__from(mark(x1))), MARK(s(z0)))
   MARK(sel(x0, from(x1))) -> c7(MARK(x0))
   MARK(sel(cons(z0, z1), from(x1))) -> c7(MARK(cons(z0, z1)))
   MARK(sel(0, from(x1))) -> c7(A__SEL(0, a__from(mark(x1))))
   MARK(sel(x0, sel(x1, from(z0)))) -> c7(A__SEL(mark(x0), a__sel(mark(x1), a__from(mark(z0)))), MARK(x0))
   MARK(sel(x0, sel(x1, sel(z0, z1)))) -> c7(A__SEL(mark(x0), a__sel(mark(x1), a__sel(mark(z0), mark(z1)))), MARK(x0))
   MARK(sel(x0, sel(x1, cons(z0, z1)))) -> c7(A__SEL(mark(x0), a__sel(mark(x1), cons(mark(z0), z1))), MARK(x0))
   MARK(sel(x0, sel(x1, s(z0)))) -> c7(A__SEL(mark(x0), a__sel(mark(x1), s(mark(z0)))), MARK(x0))
   MARK(sel(x0, sel(x1, 0))) -> c7(A__SEL(mark(x0), a__sel(mark(x1), 0)), MARK(x0))
   MARK(sel(x0, sel(from(z0), x2))) -> c7(A__SEL(mark(x0), a__sel(a__from(mark(z0)), mark(x2))), MARK(x0))
   MARK(sel(x0, sel(sel(z0, z1), x2))) -> c7(A__SEL(mark(x0), a__sel(a__sel(mark(z0), mark(z1)), mark(x2))), MARK(x0))
   MARK(sel(x0, sel(cons(z0, z1), x2))) -> c7(A__SEL(mark(x0), a__sel(cons(mark(z0), z1), mark(x2))), MARK(x0))
   MARK(sel(x0, sel(s(z0), x2))) -> c7(A__SEL(mark(x0), a__sel(s(mark(z0)), mark(x2))), MARK(x0))
   MARK(sel(x0, sel(0, x2))) -> c7(A__SEL(mark(x0), a__sel(0, mark(x2))), MARK(x0))
   MARK(sel(from(z0), sel(x1, x2))) -> c7(A__SEL(a__from(mark(z0)), a__sel(mark(x1), mark(x2))), MARK(from(z0)))
   MARK(sel(sel(z0, z1), sel(x1, x2))) -> c7(A__SEL(a__sel(mark(z0), mark(z1)), a__sel(mark(x1), mark(x2))), MARK(sel(z0, z1)))
   MARK(sel(s(z0), sel(x1, x2))) -> c7(A__SEL(s(mark(z0)), a__sel(mark(x1), mark(x2))), MARK(s(z0)))
   MARK(sel(x0, sel(x1, x2))) -> c7(MARK(x0))
   MARK(sel(cons(z0, z1), sel(x1, x2))) -> c7(MARK(cons(z0, z1)))
   MARK(sel(0, sel(x1, x2))) -> c7(A__SEL(0, a__sel(mark(x1), mark(x2))))
   MARK(sel(x0, cons(from(z0), x2))) -> c7(A__SEL(mark(x0), cons(a__from(mark(z0)), x2)), MARK(x0))
   MARK(sel(x0, cons(sel(z0, z1), x2))) -> c7(A__SEL(mark(x0), cons(a__sel(mark(z0), mark(z1)), x2)), MARK(x0))
   MARK(sel(x0, cons(cons(z0, z1), x2))) -> c7(A__SEL(mark(x0), cons(cons(mark(z0), z1), x2)), MARK(x0))
   MARK(sel(x0, cons(s(z0), x2))) -> c7(A__SEL(mark(x0), cons(s(mark(z0)), x2)), MARK(x0))
   MARK(sel(x0, cons(0, x2))) -> c7(A__SEL(mark(x0), cons(0, x2)), MARK(x0))
   MARK(sel(from(z0), cons(x1, x2))) -> c7(A__SEL(a__from(mark(z0)), cons(mark(x1), x2)), MARK(from(z0)))
   MARK(sel(sel(z0, z1), cons(x1, x2))) -> c7(A__SEL(a__sel(mark(z0), mark(z1)), cons(mark(x1), x2)), MARK(sel(z0, z1)))
   MARK(sel(s(z0), cons(x1, x2))) -> c7(A__SEL(s(mark(z0)), cons(mark(x1), x2)), MARK(s(z0)))
   MARK(sel(cons(z0, z1), cons(x1, x2))) -> c7(MARK(cons(z0, z1)))
   MARK(sel(0, cons(x1, x2))) -> c7(A__SEL(0, cons(mark(x1), x2)))
   MARK(sel(from(from(z0)), x1)) -> c7(A__SEL(a__from(a__from(mark(z0))), mark(x1)), MARK(from(from(z0))))
   MARK(sel(from(sel(z0, z1)), x1)) -> c7(A__SEL(a__from(a__sel(mark(z0), mark(z1))), mark(x1)), MARK(from(sel(z0, z1))))
   MARK(sel(from(cons(z0, z1)), x1)) -> c7(A__SEL(a__from(cons(mark(z0), z1)), mark(x1)), MARK(from(cons(z0, z1))))
   MARK(sel(from(s(z0)), x1)) -> c7(A__SEL(a__from(s(mark(z0))), mark(x1)), MARK(from(s(z0))))
   MARK(sel(from(0), x1)) -> c7(A__SEL(a__from(0), mark(x1)), MARK(from(0)))
   MARK(sel(from(x0), x1)) -> c7(MARK(from(x0)))
   MARK(sel(from(x0), s(z0))) -> c7(MARK(from(x0)))
   MARK(sel(from(x0), 0)) -> c7(MARK(from(x0)))
   MARK(sel(sel(x0, from(z0)), x2)) -> c7(A__SEL(a__sel(mark(x0), a__from(mark(z0))), mark(x2)), MARK(sel(x0, from(z0))))
   MARK(sel(sel(x0, sel(z0, z1)), x2)) -> c7(A__SEL(a__sel(mark(x0), a__sel(mark(z0), mark(z1))), mark(x2)), MARK(sel(x0, sel(z0, z1))))
   MARK(sel(sel(x0, cons(z0, z1)), x2)) -> c7(A__SEL(a__sel(mark(x0), cons(mark(z0), z1)), mark(x2)), MARK(sel(x0, cons(z0, z1))))
   MARK(sel(sel(x0, s(z0)), x2)) -> c7(A__SEL(a__sel(mark(x0), s(mark(z0))), mark(x2)), MARK(sel(x0, s(z0))))
   MARK(sel(sel(x0, 0), x2)) -> c7(A__SEL(a__sel(mark(x0), 0), mark(x2)), MARK(sel(x0, 0)))
   MARK(sel(sel(from(z0), x1), x2)) -> c7(A__SEL(a__sel(a__from(mark(z0)), mark(x1)), mark(x2)), MARK(sel(from(z0), x1)))
   MARK(sel(sel(sel(z0, z1), x1), x2)) -> c7(A__SEL(a__sel(a__sel(mark(z0), mark(z1)), mark(x1)), mark(x2)), MARK(sel(sel(z0, z1), x1)))
   MARK(sel(sel(cons(z0, z1), x1), x2)) -> c7(A__SEL(a__sel(cons(mark(z0), z1), mark(x1)), mark(x2)), MARK(sel(cons(z0, z1), x1)))
   MARK(sel(sel(s(z0), x1), x2)) -> c7(A__SEL(a__sel(s(mark(z0)), mark(x1)), mark(x2)), MARK(sel(s(z0), x1)))
   MARK(sel(sel(0, x1), x2)) -> c7(A__SEL(a__sel(0, mark(x1)), mark(x2)), MARK(sel(0, x1)))
   MARK(sel(sel(x0, x1), s(z0))) -> c7(MARK(sel(x0, x1)))
   MARK(sel(sel(x0, x1), 0)) -> c7(MARK(sel(x0, x1)))
   MARK(sel(sel(x0, x1), x2)) -> c7(MARK(sel(x0, x1)))
   MARK(sel(s(from(z0)), x1)) -> c7(A__SEL(s(a__from(mark(z0))), mark(x1)), MARK(s(from(z0))))
   MARK(sel(s(sel(z0, z1)), x1)) -> c7(A__SEL(s(a__sel(mark(z0), mark(z1))), mark(x1)), MARK(s(sel(z0, z1))))
   MARK(sel(s(cons(z0, z1)), x1)) -> c7(A__SEL(s(cons(mark(z0), z1)), mark(x1)), MARK(s(cons(z0, z1))))
   MARK(sel(s(s(z0)), x1)) -> c7(A__SEL(s(s(mark(z0))), mark(x1)), MARK(s(s(z0))))
   MARK(sel(s(0), x1)) -> c7(A__SEL(s(0), mark(x1)), MARK(s(0)))
   MARK(sel(s(x0), x1)) -> c7(MARK(s(x0)))
   MARK(sel(s(x0), s(z0))) -> c7(MARK(s(x0)))
   MARK(sel(s(x0), 0)) -> c7(MARK(s(x0)))
   MARK(sel(x0, from(x1))) -> c8(A__SEL(mark(x0), cons(mark(mark(x1)), from(s(mark(x1))))), MARK(from(x1)))
   MARK(sel(x0, from(from(z0)))) -> c8(A__SEL(mark(x0), a__from(a__from(mark(z0)))), MARK(from(from(z0))))
   MARK(sel(x0, from(sel(z0, z1)))) -> c8(A__SEL(mark(x0), a__from(a__sel(mark(z0), mark(z1)))), MARK(from(sel(z0, z1))))
   MARK(sel(x0, from(cons(z0, z1)))) -> c8(A__SEL(mark(x0), a__from(cons(mark(z0), z1))), MARK(from(cons(z0, z1))))
   MARK(sel(x0, from(s(z0)))) -> c8(A__SEL(mark(x0), a__from(s(mark(z0)))), MARK(from(s(z0))))
   MARK(sel(x0, from(0))) -> c8(A__SEL(mark(x0), a__from(0)), MARK(from(0)))
   MARK(sel(from(z0), from(x1))) -> c8(A__SEL(a__from(mark(z0)), a__from(mark(x1))), MARK(from(x1)))
   MARK(sel(sel(z0, z1), from(x1))) -> c8(A__SEL(a__sel(mark(z0), mark(z1)), a__from(mark(x1))), MARK(from(x1)))
   MARK(sel(s(z0), from(x1))) -> c8(A__SEL(s(mark(z0)), a__from(mark(x1))), MARK(from(x1)))
   MARK(sel(0, from(x1))) -> c8(A__SEL(0, a__from(mark(x1))), MARK(from(x1)))
   MARK(sel(x0, from(x1))) -> c8(MARK(from(x1)))
   MARK(sel(cons(z0, z1), from(x1))) -> c8(MARK(from(x1)))
   MARK(sel(x0, sel(x1, from(z0)))) -> c8(A__SEL(mark(x0), a__sel(mark(x1), a__from(mark(z0)))), MARK(sel(x1, from(z0))))
   MARK(sel(x0, sel(x1, sel(z0, z1)))) -> c8(A__SEL(mark(x0), a__sel(mark(x1), a__sel(mark(z0), mark(z1)))), MARK(sel(x1, sel(z0, z1))))
   MARK(sel(x0, sel(x1, cons(z0, z1)))) -> c8(A__SEL(mark(x0), a__sel(mark(x1), cons(mark(z0), z1))), MARK(sel(x1, cons(z0, z1))))
   MARK(sel(x0, sel(x1, s(z0)))) -> c8(A__SEL(mark(x0), a__sel(mark(x1), s(mark(z0)))), MARK(sel(x1, s(z0))))
   MARK(sel(x0, sel(x1, 0))) -> c8(A__SEL(mark(x0), a__sel(mark(x1), 0)), MARK(sel(x1, 0)))
   MARK(sel(x0, sel(from(z0), x2))) -> c8(A__SEL(mark(x0), a__sel(a__from(mark(z0)), mark(x2))), MARK(sel(from(z0), x2)))
   MARK(sel(x0, sel(sel(z0, z1), x2))) -> c8(A__SEL(mark(x0), a__sel(a__sel(mark(z0), mark(z1)), mark(x2))), MARK(sel(sel(z0, z1), x2)))
   MARK(sel(x0, sel(cons(z0, z1), x2))) -> c8(A__SEL(mark(x0), a__sel(cons(mark(z0), z1), mark(x2))), MARK(sel(cons(z0, z1), x2)))
   MARK(sel(x0, sel(s(z0), x2))) -> c8(A__SEL(mark(x0), a__sel(s(mark(z0)), mark(x2))), MARK(sel(s(z0), x2)))
   MARK(sel(x0, sel(0, x2))) -> c8(A__SEL(mark(x0), a__sel(0, mark(x2))), MARK(sel(0, x2)))
   MARK(sel(from(z0), sel(x1, x2))) -> c8(A__SEL(a__from(mark(z0)), a__sel(mark(x1), mark(x2))), MARK(sel(x1, x2)))
   MARK(sel(sel(z0, z1), sel(x1, x2))) -> c8(A__SEL(a__sel(mark(z0), mark(z1)), a__sel(mark(x1), mark(x2))), MARK(sel(x1, x2)))
   MARK(sel(s(z0), sel(x1, x2))) -> c8(A__SEL(s(mark(z0)), a__sel(mark(x1), mark(x2))), MARK(sel(x1, x2)))
   MARK(sel(0, sel(x1, x2))) -> c8(A__SEL(0, a__sel(mark(x1), mark(x2))), MARK(sel(x1, x2)))
   MARK(sel(x0, sel(x1, x2))) -> c8(MARK(sel(x1, x2)))
   MARK(sel(cons(z0, z1), sel(x1, x2))) -> c8(MARK(sel(x1, x2)))
   MARK(sel(x0, cons(from(z0), x2))) -> c8(A__SEL(mark(x0), cons(a__from(mark(z0)), x2)), MARK(cons(from(z0), x2)))
   MARK(sel(x0, cons(sel(z0, z1), x2))) -> c8(A__SEL(mark(x0), cons(a__sel(mark(z0), mark(z1)), x2)), MARK(cons(sel(z0, z1), x2)))
   MARK(sel(x0, cons(cons(z0, z1), x2))) -> c8(A__SEL(mark(x0), cons(cons(mark(z0), z1), x2)), MARK(cons(cons(z0, z1), x2)))
   MARK(sel(x0, cons(s(z0), x2))) -> c8(A__SEL(mark(x0), cons(s(mark(z0)), x2)), MARK(cons(s(z0), x2)))
   MARK(sel(x0, cons(0, x2))) -> c8(A__SEL(mark(x0), cons(0, x2)), MARK(cons(0, x2)))
   MARK(sel(from(z0), cons(x1, x2))) -> c8(A__SEL(a__from(mark(z0)), cons(mark(x1), x2)), MARK(cons(x1, x2)))
   MARK(sel(sel(z0, z1), cons(x1, x2))) -> c8(A__SEL(a__sel(mark(z0), mark(z1)), cons(mark(x1), x2)), MARK(cons(x1, x2)))
   MARK(sel(s(z0), cons(x1, x2))) -> c8(A__SEL(s(mark(z0)), cons(mark(x1), x2)), MARK(cons(x1, x2)))
   MARK(sel(0, cons(x1, x2))) -> c8(A__SEL(0, cons(mark(x1), x2)), MARK(cons(x1, x2)))
   MARK(sel(x0, cons(x1, x2))) -> c8(MARK(cons(x1, x2)))
   MARK(sel(cons(z0, z1), cons(x1, x2))) -> c8(MARK(cons(x1, x2)))
   MARK(sel(from(from(z0)), x1)) -> c8(A__SEL(a__from(a__from(mark(z0))), mark(x1)), MARK(x1))
   MARK(sel(from(sel(z0, z1)), x1)) -> c8(A__SEL(a__from(a__sel(mark(z0), mark(z1))), mark(x1)), MARK(x1))
   MARK(sel(from(cons(z0, z1)), x1)) -> c8(A__SEL(a__from(cons(mark(z0), z1)), mark(x1)), MARK(x1))
   MARK(sel(from(s(z0)), x1)) -> c8(A__SEL(a__from(s(mark(z0))), mark(x1)), MARK(x1))
   MARK(sel(from(0), x1)) -> c8(A__SEL(a__from(0), mark(x1)), MARK(x1))
   MARK(sel(from(x0), s(z0))) -> c8(MARK(s(z0)))
   MARK(sel(from(x0), x1)) -> c8(MARK(x1))
   MARK(sel(sel(x0, from(z0)), x2)) -> c8(A__SEL(a__sel(mark(x0), a__from(mark(z0))), mark(x2)), MARK(x2))
   MARK(sel(sel(x0, sel(z0, z1)), x2)) -> c8(A__SEL(a__sel(mark(x0), a__sel(mark(z0), mark(z1))), mark(x2)), MARK(x2))
   MARK(sel(sel(x0, cons(z0, z1)), x2)) -> c8(A__SEL(a__sel(mark(x0), cons(mark(z0), z1)), mark(x2)), MARK(x2))
   MARK(sel(sel(x0, s(z0)), x2)) -> c8(A__SEL(a__sel(mark(x0), s(mark(z0))), mark(x2)), MARK(x2))
   MARK(sel(sel(x0, 0), x2)) -> c8(A__SEL(a__sel(mark(x0), 0), mark(x2)), MARK(x2))
   MARK(sel(sel(from(z0), x1), x2)) -> c8(A__SEL(a__sel(a__from(mark(z0)), mark(x1)), mark(x2)), MARK(x2))
   MARK(sel(sel(sel(z0, z1), x1), x2)) -> c8(A__SEL(a__sel(a__sel(mark(z0), mark(z1)), mark(x1)), mark(x2)), MARK(x2))
   MARK(sel(sel(cons(z0, z1), x1), x2)) -> c8(A__SEL(a__sel(cons(mark(z0), z1), mark(x1)), mark(x2)), MARK(x2))
   MARK(sel(sel(s(z0), x1), x2)) -> c8(A__SEL(a__sel(s(mark(z0)), mark(x1)), mark(x2)), MARK(x2))
   MARK(sel(sel(0, x1), x2)) -> c8(A__SEL(a__sel(0, mark(x1)), mark(x2)), MARK(x2))
   MARK(sel(sel(x0, x1), s(z0))) -> c8(MARK(s(z0)))
   MARK(sel(sel(x0, x1), x2)) -> c8(MARK(x2))
   MARK(sel(s(from(z0)), x1)) -> c8(A__SEL(s(a__from(mark(z0))), mark(x1)), MARK(x1))
   MARK(sel(s(sel(z0, z1)), x1)) -> c8(A__SEL(s(a__sel(mark(z0), mark(z1))), mark(x1)), MARK(x1))
   MARK(sel(s(cons(z0, z1)), x1)) -> c8(A__SEL(s(cons(mark(z0), z1)), mark(x1)), MARK(x1))
   MARK(sel(s(s(z0)), x1)) -> c8(A__SEL(s(s(mark(z0))), mark(x1)), MARK(x1))
   MARK(sel(s(0), x1)) -> c8(A__SEL(s(0), mark(x1)), MARK(x1))
   MARK(sel(s(x0), s(z0))) -> c8(MARK(s(z0)))
S tuples:
   A__FROM(z0) -> c(MARK(z0))
   A__SEL(0, cons(z0, z1)) -> c2(MARK(z0))
   MARK(from(z0)) -> c6(A__FROM(mark(z0)), MARK(z0))
   MARK(cons(z0, z1)) -> c9(MARK(z0))
   MARK(s(z0)) -> c10(MARK(z0))
   A__SEL(s(x0), cons(x1, s(z0))) -> c3(MARK(x0))
   A__SEL(s(x0), cons(x1, 0)) -> c3(MARK(x0))
   A__SEL(s(cons(z0, z1)), cons(x1, x2)) -> c3(MARK(cons(z0, z1)))
   A__SEL(s(x0), cons(x1, s(z0))) -> c4(MARK(s(z0)))
   A__SEL(s(cons(z0, z1)), cons(x1, x2)) -> c4(MARK(x2))
   MARK(sel(x0, s(z0))) -> c7(MARK(x0))
   MARK(sel(x0, 0)) -> c7(MARK(x0))
   MARK(sel(cons(z0, z1), x1)) -> c7(MARK(cons(z0, z1)))
   MARK(sel(0, x1)) -> c8(A__SEL(0, mark(x1)), MARK(x1))
   MARK(sel(x0, s(z0))) -> c8(MARK(s(z0)))
   MARK(sel(cons(z0, z1), x1)) -> c8(MARK(x1))
   A__SEL(s(x0), cons(x1, from(x2))) -> c3(A__SEL(mark(x0), cons(mark(mark(x2)), from(s(mark(x2))))), MARK(x0))
   A__SEL(s(x0), cons(x1, from(from(z0)))) -> c3(A__SEL(mark(x0), a__from(a__from(mark(z0)))), MARK(x0))
   A__SEL(s(x0), cons(x1, from(sel(z0, z1)))) -> c3(A__SEL(mark(x0), a__from(a__sel(mark(z0), mark(z1)))), MARK(x0))
   A__SEL(s(x0), cons(x1, from(cons(z0, z1)))) -> c3(A__SEL(mark(x0), a__from(cons(mark(z0), z1))), MARK(x0))
   A__SEL(s(x0), cons(x1, from(s(z0)))) -> c3(A__SEL(mark(x0), a__from(s(mark(z0)))), MARK(x0))
   A__SEL(s(x0), cons(x1, from(0))) -> c3(A__SEL(mark(x0), a__from(0)), MARK(x0))
   A__SEL(s(from(z0)), cons(x1, from(x2))) -> c3(A__SEL(a__from(mark(z0)), a__from(mark(x2))), MARK(from(z0)))
   A__SEL(s(sel(z0, z1)), cons(x1, from(x2))) -> c3(A__SEL(a__sel(mark(z0), mark(z1)), a__from(mark(x2))), MARK(sel(z0, z1)))
   A__SEL(s(s(z0)), cons(x1, from(x2))) -> c3(A__SEL(s(mark(z0)), a__from(mark(x2))), MARK(s(z0)))
   A__SEL(s(x0), cons(x1, from(x2))) -> c3(MARK(x0))
   A__SEL(s(cons(z0, z1)), cons(x1, from(x2))) -> c3(MARK(cons(z0, z1)))
   A__SEL(s(0), cons(x1, from(x2))) -> c3(A__SEL(0, a__from(mark(x2))))
   A__SEL(s(x0), cons(x1, sel(x2, from(z0)))) -> c3(A__SEL(mark(x0), a__sel(mark(x2), a__from(mark(z0)))), MARK(x0))
   A__SEL(s(x0), cons(x1, sel(x2, sel(z0, z1)))) -> c3(A__SEL(mark(x0), a__sel(mark(x2), a__sel(mark(z0), mark(z1)))), MARK(x0))
   A__SEL(s(x0), cons(x1, sel(x2, cons(z0, z1)))) -> c3(A__SEL(mark(x0), a__sel(mark(x2), cons(mark(z0), z1))), MARK(x0))
   A__SEL(s(x0), cons(x1, sel(x2, s(z0)))) -> c3(A__SEL(mark(x0), a__sel(mark(x2), s(mark(z0)))), MARK(x0))
   A__SEL(s(x0), cons(x1, sel(x2, 0))) -> c3(A__SEL(mark(x0), a__sel(mark(x2), 0)), MARK(x0))
   A__SEL(s(x0), cons(x1, sel(from(z0), x3))) -> c3(A__SEL(mark(x0), a__sel(a__from(mark(z0)), mark(x3))), MARK(x0))
   A__SEL(s(x0), cons(x1, sel(sel(z0, z1), x3))) -> c3(A__SEL(mark(x0), a__sel(a__sel(mark(z0), mark(z1)), mark(x3))), MARK(x0))
   A__SEL(s(x0), cons(x1, sel(cons(z0, z1), x3))) -> c3(A__SEL(mark(x0), a__sel(cons(mark(z0), z1), mark(x3))), MARK(x0))
   A__SEL(s(x0), cons(x1, sel(s(z0), x3))) -> c3(A__SEL(mark(x0), a__sel(s(mark(z0)), mark(x3))), MARK(x0))
   A__SEL(s(x0), cons(x1, sel(0, x3))) -> c3(A__SEL(mark(x0), a__sel(0, mark(x3))), MARK(x0))
   A__SEL(s(from(z0)), cons(x1, sel(x2, x3))) -> c3(A__SEL(a__from(mark(z0)), a__sel(mark(x2), mark(x3))), MARK(from(z0)))
   A__SEL(s(sel(z0, z1)), cons(x1, sel(x2, x3))) -> c3(A__SEL(a__sel(mark(z0), mark(z1)), a__sel(mark(x2), mark(x3))), MARK(sel(z0, z1)))
   A__SEL(s(s(z0)), cons(x1, sel(x2, x3))) -> c3(A__SEL(s(mark(z0)), a__sel(mark(x2), mark(x3))), MARK(s(z0)))
   A__SEL(s(x0), cons(x1, sel(x2, x3))) -> c3(MARK(x0))
   A__SEL(s(cons(z0, z1)), cons(x1, sel(x2, x3))) -> c3(MARK(cons(z0, z1)))
   A__SEL(s(0), cons(x1, sel(x2, x3))) -> c3(A__SEL(0, a__sel(mark(x2), mark(x3))))
   A__SEL(s(x0), cons(x1, cons(from(z0), x3))) -> c3(A__SEL(mark(x0), cons(a__from(mark(z0)), x3)), MARK(x0))
   A__SEL(s(x0), cons(x1, cons(sel(z0, z1), x3))) -> c3(A__SEL(mark(x0), cons(a__sel(mark(z0), mark(z1)), x3)), MARK(x0))
   A__SEL(s(x0), cons(x1, cons(cons(z0, z1), x3))) -> c3(A__SEL(mark(x0), cons(cons(mark(z0), z1), x3)), MARK(x0))
   A__SEL(s(x0), cons(x1, cons(s(z0), x3))) -> c3(A__SEL(mark(x0), cons(s(mark(z0)), x3)), MARK(x0))
   A__SEL(s(x0), cons(x1, cons(0, x3))) -> c3(A__SEL(mark(x0), cons(0, x3)), MARK(x0))
   A__SEL(s(from(z0)), cons(x1, cons(x2, x3))) -> c3(A__SEL(a__from(mark(z0)), cons(mark(x2), x3)), MARK(from(z0)))
   A__SEL(s(sel(z0, z1)), cons(x1, cons(x2, x3))) -> c3(A__SEL(a__sel(mark(z0), mark(z1)), cons(mark(x2), x3)), MARK(sel(z0, z1)))
   A__SEL(s(s(z0)), cons(x1, cons(x2, x3))) -> c3(A__SEL(s(mark(z0)), cons(mark(x2), x3)), MARK(s(z0)))
   A__SEL(s(cons(z0, z1)), cons(x1, cons(x2, x3))) -> c3(MARK(cons(z0, z1)))
   A__SEL(s(0), cons(x1, cons(x2, x3))) -> c3(A__SEL(0, cons(mark(x2), x3)))
   A__SEL(s(from(from(z0))), cons(x1, x2)) -> c3(A__SEL(a__from(a__from(mark(z0))), mark(x2)), MARK(from(from(z0))))
   A__SEL(s(from(sel(z0, z1))), cons(x1, x2)) -> c3(A__SEL(a__from(a__sel(mark(z0), mark(z1))), mark(x2)), MARK(from(sel(z0, z1))))
   A__SEL(s(from(cons(z0, z1))), cons(x1, x2)) -> c3(A__SEL(a__from(cons(mark(z0), z1)), mark(x2)), MARK(from(cons(z0, z1))))
   A__SEL(s(from(s(z0))), cons(x1, x2)) -> c3(A__SEL(a__from(s(mark(z0))), mark(x2)), MARK(from(s(z0))))
   A__SEL(s(from(0)), cons(x1, x2)) -> c3(A__SEL(a__from(0), mark(x2)), MARK(from(0)))
   A__SEL(s(from(x0)), cons(x1, x2)) -> c3(MARK(from(x0)))
   A__SEL(s(from(x0)), cons(x1, s(z0))) -> c3(MARK(from(x0)))
   A__SEL(s(from(x0)), cons(x1, 0)) -> c3(MARK(from(x0)))
   A__SEL(s(sel(x0, from(z0))), cons(x2, x3)) -> c3(A__SEL(a__sel(mark(x0), a__from(mark(z0))), mark(x3)), MARK(sel(x0, from(z0))))
   A__SEL(s(sel(x0, sel(z0, z1))), cons(x2, x3)) -> c3(A__SEL(a__sel(mark(x0), a__sel(mark(z0), mark(z1))), mark(x3)), MARK(sel(x0, sel(z0, z1))))
   A__SEL(s(sel(x0, cons(z0, z1))), cons(x2, x3)) -> c3(A__SEL(a__sel(mark(x0), cons(mark(z0), z1)), mark(x3)), MARK(sel(x0, cons(z0, z1))))
   A__SEL(s(sel(x0, s(z0))), cons(x2, x3)) -> c3(A__SEL(a__sel(mark(x0), s(mark(z0))), mark(x3)), MARK(sel(x0, s(z0))))
   A__SEL(s(sel(x0, 0)), cons(x2, x3)) -> c3(A__SEL(a__sel(mark(x0), 0), mark(x3)), MARK(sel(x0, 0)))
   A__SEL(s(sel(from(z0), x1)), cons(x2, x3)) -> c3(A__SEL(a__sel(a__from(mark(z0)), mark(x1)), mark(x3)), MARK(sel(from(z0), x1)))
   A__SEL(s(sel(sel(z0, z1), x1)), cons(x2, x3)) -> c3(A__SEL(a__sel(a__sel(mark(z0), mark(z1)), mark(x1)), mark(x3)), MARK(sel(sel(z0, z1), x1)))
   A__SEL(s(sel(cons(z0, z1), x1)), cons(x2, x3)) -> c3(A__SEL(a__sel(cons(mark(z0), z1), mark(x1)), mark(x3)), MARK(sel(cons(z0, z1), x1)))
   A__SEL(s(sel(s(z0), x1)), cons(x2, x3)) -> c3(A__SEL(a__sel(s(mark(z0)), mark(x1)), mark(x3)), MARK(sel(s(z0), x1)))
   A__SEL(s(sel(0, x1)), cons(x2, x3)) -> c3(A__SEL(a__sel(0, mark(x1)), mark(x3)), MARK(sel(0, x1)))
   A__SEL(s(sel(x0, x1)), cons(x2, s(z0))) -> c3(MARK(sel(x0, x1)))
   A__SEL(s(sel(x0, x1)), cons(x2, 0)) -> c3(MARK(sel(x0, x1)))
   A__SEL(s(sel(x0, x1)), cons(x2, x3)) -> c3(MARK(sel(x0, x1)))
   A__SEL(s(s(from(z0))), cons(x1, x2)) -> c3(A__SEL(s(a__from(mark(z0))), mark(x2)), MARK(s(from(z0))))
   A__SEL(s(s(sel(z0, z1))), cons(x1, x2)) -> c3(A__SEL(s(a__sel(mark(z0), mark(z1))), mark(x2)), MARK(s(sel(z0, z1))))
   A__SEL(s(s(cons(z0, z1))), cons(x1, x2)) -> c3(A__SEL(s(cons(mark(z0), z1)), mark(x2)), MARK(s(cons(z0, z1))))
   A__SEL(s(s(s(z0))), cons(x1, x2)) -> c3(A__SEL(s(s(mark(z0))), mark(x2)), MARK(s(s(z0))))
   A__SEL(s(s(0)), cons(x1, x2)) -> c3(A__SEL(s(0), mark(x2)), MARK(s(0)))
   A__SEL(s(s(x0)), cons(x1, x2)) -> c3(MARK(s(x0)))
   A__SEL(s(s(x0)), cons(x1, s(z0))) -> c3(MARK(s(x0)))
   A__SEL(s(s(x0)), cons(x1, 0)) -> c3(MARK(s(x0)))
   A__SEL(s(x0), cons(x1, from(x2))) -> c4(A__SEL(mark(x0), cons(mark(mark(x2)), from(s(mark(x2))))), MARK(from(x2)))
   A__SEL(s(x0), cons(x1, from(from(z0)))) -> c4(A__SEL(mark(x0), a__from(a__from(mark(z0)))), MARK(from(from(z0))))
   A__SEL(s(x0), cons(x1, from(sel(z0, z1)))) -> c4(A__SEL(mark(x0), a__from(a__sel(mark(z0), mark(z1)))), MARK(from(sel(z0, z1))))
   A__SEL(s(x0), cons(x1, from(cons(z0, z1)))) -> c4(A__SEL(mark(x0), a__from(cons(mark(z0), z1))), MARK(from(cons(z0, z1))))
   A__SEL(s(x0), cons(x1, from(s(z0)))) -> c4(A__SEL(mark(x0), a__from(s(mark(z0)))), MARK(from(s(z0))))
   A__SEL(s(x0), cons(x1, from(0))) -> c4(A__SEL(mark(x0), a__from(0)), MARK(from(0)))
   A__SEL(s(from(z0)), cons(x1, from(x2))) -> c4(A__SEL(a__from(mark(z0)), a__from(mark(x2))), MARK(from(x2)))
   A__SEL(s(sel(z0, z1)), cons(x1, from(x2))) -> c4(A__SEL(a__sel(mark(z0), mark(z1)), a__from(mark(x2))), MARK(from(x2)))
   A__SEL(s(s(z0)), cons(x1, from(x2))) -> c4(A__SEL(s(mark(z0)), a__from(mark(x2))), MARK(from(x2)))
   A__SEL(s(0), cons(x1, from(x2))) -> c4(A__SEL(0, a__from(mark(x2))), MARK(from(x2)))
   A__SEL(s(x0), cons(x1, from(x2))) -> c4(MARK(from(x2)))
   A__SEL(s(cons(z0, z1)), cons(x1, from(x2))) -> c4(MARK(from(x2)))
   A__SEL(s(x0), cons(x1, sel(x2, from(z0)))) -> c4(A__SEL(mark(x0), a__sel(mark(x2), a__from(mark(z0)))), MARK(sel(x2, from(z0))))
   A__SEL(s(x0), cons(x1, sel(x2, sel(z0, z1)))) -> c4(A__SEL(mark(x0), a__sel(mark(x2), a__sel(mark(z0), mark(z1)))), MARK(sel(x2, sel(z0, z1))))
   A__SEL(s(x0), cons(x1, sel(x2, cons(z0, z1)))) -> c4(A__SEL(mark(x0), a__sel(mark(x2), cons(mark(z0), z1))), MARK(sel(x2, cons(z0, z1))))
   A__SEL(s(x0), cons(x1, sel(x2, s(z0)))) -> c4(A__SEL(mark(x0), a__sel(mark(x2), s(mark(z0)))), MARK(sel(x2, s(z0))))
   A__SEL(s(x0), cons(x1, sel(x2, 0))) -> c4(A__SEL(mark(x0), a__sel(mark(x2), 0)), MARK(sel(x2, 0)))
   A__SEL(s(x0), cons(x1, sel(from(z0), x3))) -> c4(A__SEL(mark(x0), a__sel(a__from(mark(z0)), mark(x3))), MARK(sel(from(z0), x3)))
   A__SEL(s(x0), cons(x1, sel(sel(z0, z1), x3))) -> c4(A__SEL(mark(x0), a__sel(a__sel(mark(z0), mark(z1)), mark(x3))), MARK(sel(sel(z0, z1), x3)))
   A__SEL(s(x0), cons(x1, sel(cons(z0, z1), x3))) -> c4(A__SEL(mark(x0), a__sel(cons(mark(z0), z1), mark(x3))), MARK(sel(cons(z0, z1), x3)))
   A__SEL(s(x0), cons(x1, sel(s(z0), x3))) -> c4(A__SEL(mark(x0), a__sel(s(mark(z0)), mark(x3))), MARK(sel(s(z0), x3)))
   A__SEL(s(x0), cons(x1, sel(0, x3))) -> c4(A__SEL(mark(x0), a__sel(0, mark(x3))), MARK(sel(0, x3)))
   A__SEL(s(from(z0)), cons(x1, sel(x2, x3))) -> c4(A__SEL(a__from(mark(z0)), a__sel(mark(x2), mark(x3))), MARK(sel(x2, x3)))
   A__SEL(s(sel(z0, z1)), cons(x1, sel(x2, x3))) -> c4(A__SEL(a__sel(mark(z0), mark(z1)), a__sel(mark(x2), mark(x3))), MARK(sel(x2, x3)))
   A__SEL(s(s(z0)), cons(x1, sel(x2, x3))) -> c4(A__SEL(s(mark(z0)), a__sel(mark(x2), mark(x3))), MARK(sel(x2, x3)))
   A__SEL(s(0), cons(x1, sel(x2, x3))) -> c4(A__SEL(0, a__sel(mark(x2), mark(x3))), MARK(sel(x2, x3)))
   A__SEL(s(x0), cons(x1, sel(x2, x3))) -> c4(MARK(sel(x2, x3)))
   A__SEL(s(cons(z0, z1)), cons(x1, sel(x2, x3))) -> c4(MARK(sel(x2, x3)))
   A__SEL(s(x0), cons(x1, cons(from(z0), x3))) -> c4(A__SEL(mark(x0), cons(a__from(mark(z0)), x3)), MARK(cons(from(z0), x3)))
   A__SEL(s(x0), cons(x1, cons(sel(z0, z1), x3))) -> c4(A__SEL(mark(x0), cons(a__sel(mark(z0), mark(z1)), x3)), MARK(cons(sel(z0, z1), x3)))
   A__SEL(s(x0), cons(x1, cons(cons(z0, z1), x3))) -> c4(A__SEL(mark(x0), cons(cons(mark(z0), z1), x3)), MARK(cons(cons(z0, z1), x3)))
   A__SEL(s(x0), cons(x1, cons(s(z0), x3))) -> c4(A__SEL(mark(x0), cons(s(mark(z0)), x3)), MARK(cons(s(z0), x3)))
   A__SEL(s(x0), cons(x1, cons(0, x3))) -> c4(A__SEL(mark(x0), cons(0, x3)), MARK(cons(0, x3)))
   A__SEL(s(from(z0)), cons(x1, cons(x2, x3))) -> c4(A__SEL(a__from(mark(z0)), cons(mark(x2), x3)), MARK(cons(x2, x3)))
   A__SEL(s(sel(z0, z1)), cons(x1, cons(x2, x3))) -> c4(A__SEL(a__sel(mark(z0), mark(z1)), cons(mark(x2), x3)), MARK(cons(x2, x3)))
   A__SEL(s(s(z0)), cons(x1, cons(x2, x3))) -> c4(A__SEL(s(mark(z0)), cons(mark(x2), x3)), MARK(cons(x2, x3)))
   A__SEL(s(0), cons(x1, cons(x2, x3))) -> c4(A__SEL(0, cons(mark(x2), x3)), MARK(cons(x2, x3)))
   A__SEL(s(x0), cons(x1, cons(x2, x3))) -> c4(MARK(cons(x2, x3)))
   A__SEL(s(cons(z0, z1)), cons(x1, cons(x2, x3))) -> c4(MARK(cons(x2, x3)))
   A__SEL(s(from(from(z0))), cons(x1, x2)) -> c4(A__SEL(a__from(a__from(mark(z0))), mark(x2)), MARK(x2))
   A__SEL(s(from(sel(z0, z1))), cons(x1, x2)) -> c4(A__SEL(a__from(a__sel(mark(z0), mark(z1))), mark(x2)), MARK(x2))
   A__SEL(s(from(cons(z0, z1))), cons(x1, x2)) -> c4(A__SEL(a__from(cons(mark(z0), z1)), mark(x2)), MARK(x2))
   A__SEL(s(from(s(z0))), cons(x1, x2)) -> c4(A__SEL(a__from(s(mark(z0))), mark(x2)), MARK(x2))
   A__SEL(s(from(0)), cons(x1, x2)) -> c4(A__SEL(a__from(0), mark(x2)), MARK(x2))
   A__SEL(s(from(x0)), cons(x1, s(z0))) -> c4(MARK(s(z0)))
   A__SEL(s(from(x0)), cons(x1, x2)) -> c4(MARK(x2))
   A__SEL(s(sel(x0, from(z0))), cons(x2, x3)) -> c4(A__SEL(a__sel(mark(x0), a__from(mark(z0))), mark(x3)), MARK(x3))
   A__SEL(s(sel(x0, sel(z0, z1))), cons(x2, x3)) -> c4(A__SEL(a__sel(mark(x0), a__sel(mark(z0), mark(z1))), mark(x3)), MARK(x3))
   A__SEL(s(sel(x0, cons(z0, z1))), cons(x2, x3)) -> c4(A__SEL(a__sel(mark(x0), cons(mark(z0), z1)), mark(x3)), MARK(x3))
   A__SEL(s(sel(x0, s(z0))), cons(x2, x3)) -> c4(A__SEL(a__sel(mark(x0), s(mark(z0))), mark(x3)), MARK(x3))
   A__SEL(s(sel(x0, 0)), cons(x2, x3)) -> c4(A__SEL(a__sel(mark(x0), 0), mark(x3)), MARK(x3))
   A__SEL(s(sel(from(z0), x1)), cons(x2, x3)) -> c4(A__SEL(a__sel(a__from(mark(z0)), mark(x1)), mark(x3)), MARK(x3))
   A__SEL(s(sel(sel(z0, z1), x1)), cons(x2, x3)) -> c4(A__SEL(a__sel(a__sel(mark(z0), mark(z1)), mark(x1)), mark(x3)), MARK(x3))
   A__SEL(s(sel(cons(z0, z1), x1)), cons(x2, x3)) -> c4(A__SEL(a__sel(cons(mark(z0), z1), mark(x1)), mark(x3)), MARK(x3))
   A__SEL(s(sel(s(z0), x1)), cons(x2, x3)) -> c4(A__SEL(a__sel(s(mark(z0)), mark(x1)), mark(x3)), MARK(x3))
   A__SEL(s(sel(0, x1)), cons(x2, x3)) -> c4(A__SEL(a__sel(0, mark(x1)), mark(x3)), MARK(x3))
   A__SEL(s(sel(x0, x1)), cons(x2, s(z0))) -> c4(MARK(s(z0)))
   A__SEL(s(sel(x0, x1)), cons(x2, x3)) -> c4(MARK(x3))
   A__SEL(s(s(from(z0))), cons(x1, x2)) -> c4(A__SEL(s(a__from(mark(z0))), mark(x2)), MARK(x2))
   A__SEL(s(s(sel(z0, z1))), cons(x1, x2)) -> c4(A__SEL(s(a__sel(mark(z0), mark(z1))), mark(x2)), MARK(x2))
   A__SEL(s(s(cons(z0, z1))), cons(x1, x2)) -> c4(A__SEL(s(cons(mark(z0), z1)), mark(x2)), MARK(x2))
   A__SEL(s(s(s(z0))), cons(x1, x2)) -> c4(A__SEL(s(s(mark(z0))), mark(x2)), MARK(x2))
   A__SEL(s(s(0)), cons(x1, x2)) -> c4(A__SEL(s(0), mark(x2)), MARK(x2))
   A__SEL(s(s(x0)), cons(x1, s(z0))) -> c4(MARK(s(z0)))
   A__SEL(s(0), cons(x0, s(z0))) -> c4(MARK(s(z0)))
   MARK(sel(x0, from(x1))) -> c7(A__SEL(mark(x0), cons(mark(mark(x1)), from(s(mark(x1))))), MARK(x0))
   MARK(sel(x0, from(from(z0)))) -> c7(A__SEL(mark(x0), a__from(a__from(mark(z0)))), MARK(x0))
   MARK(sel(x0, from(sel(z0, z1)))) -> c7(A__SEL(mark(x0), a__from(a__sel(mark(z0), mark(z1)))), MARK(x0))
   MARK(sel(x0, from(cons(z0, z1)))) -> c7(A__SEL(mark(x0), a__from(cons(mark(z0), z1))), MARK(x0))
   MARK(sel(x0, from(s(z0)))) -> c7(A__SEL(mark(x0), a__from(s(mark(z0)))), MARK(x0))
   MARK(sel(x0, from(0))) -> c7(A__SEL(mark(x0), a__from(0)), MARK(x0))
   MARK(sel(from(z0), from(x1))) -> c7(A__SEL(a__from(mark(z0)), a__from(mark(x1))), MARK(from(z0)))
   MARK(sel(sel(z0, z1), from(x1))) -> c7(A__SEL(a__sel(mark(z0), mark(z1)), a__from(mark(x1))), MARK(sel(z0, z1)))
   MARK(sel(s(z0), from(x1))) -> c7(A__SEL(s(mark(z0)), a__from(mark(x1))), MARK(s(z0)))
   MARK(sel(x0, from(x1))) -> c7(MARK(x0))
   MARK(sel(cons(z0, z1), from(x1))) -> c7(MARK(cons(z0, z1)))
   MARK(sel(0, from(x1))) -> c7(A__SEL(0, a__from(mark(x1))))
   MARK(sel(x0, sel(x1, from(z0)))) -> c7(A__SEL(mark(x0), a__sel(mark(x1), a__from(mark(z0)))), MARK(x0))
   MARK(sel(x0, sel(x1, sel(z0, z1)))) -> c7(A__SEL(mark(x0), a__sel(mark(x1), a__sel(mark(z0), mark(z1)))), MARK(x0))
   MARK(sel(x0, sel(x1, cons(z0, z1)))) -> c7(A__SEL(mark(x0), a__sel(mark(x1), cons(mark(z0), z1))), MARK(x0))
   MARK(sel(x0, sel(x1, s(z0)))) -> c7(A__SEL(mark(x0), a__sel(mark(x1), s(mark(z0)))), MARK(x0))
   MARK(sel(x0, sel(x1, 0))) -> c7(A__SEL(mark(x0), a__sel(mark(x1), 0)), MARK(x0))
   MARK(sel(x0, sel(from(z0), x2))) -> c7(A__SEL(mark(x0), a__sel(a__from(mark(z0)), mark(x2))), MARK(x0))
   MARK(sel(x0, sel(sel(z0, z1), x2))) -> c7(A__SEL(mark(x0), a__sel(a__sel(mark(z0), mark(z1)), mark(x2))), MARK(x0))
   MARK(sel(x0, sel(cons(z0, z1), x2))) -> c7(A__SEL(mark(x0), a__sel(cons(mark(z0), z1), mark(x2))), MARK(x0))
   MARK(sel(x0, sel(s(z0), x2))) -> c7(A__SEL(mark(x0), a__sel(s(mark(z0)), mark(x2))), MARK(x0))
   MARK(sel(x0, sel(0, x2))) -> c7(A__SEL(mark(x0), a__sel(0, mark(x2))), MARK(x0))
   MARK(sel(from(z0), sel(x1, x2))) -> c7(A__SEL(a__from(mark(z0)), a__sel(mark(x1), mark(x2))), MARK(from(z0)))
   MARK(sel(sel(z0, z1), sel(x1, x2))) -> c7(A__SEL(a__sel(mark(z0), mark(z1)), a__sel(mark(x1), mark(x2))), MARK(sel(z0, z1)))
   MARK(sel(s(z0), sel(x1, x2))) -> c7(A__SEL(s(mark(z0)), a__sel(mark(x1), mark(x2))), MARK(s(z0)))
   MARK(sel(x0, sel(x1, x2))) -> c7(MARK(x0))
   MARK(sel(cons(z0, z1), sel(x1, x2))) -> c7(MARK(cons(z0, z1)))
   MARK(sel(0, sel(x1, x2))) -> c7(A__SEL(0, a__sel(mark(x1), mark(x2))))
   MARK(sel(x0, cons(from(z0), x2))) -> c7(A__SEL(mark(x0), cons(a__from(mark(z0)), x2)), MARK(x0))
   MARK(sel(x0, cons(sel(z0, z1), x2))) -> c7(A__SEL(mark(x0), cons(a__sel(mark(z0), mark(z1)), x2)), MARK(x0))
   MARK(sel(x0, cons(cons(z0, z1), x2))) -> c7(A__SEL(mark(x0), cons(cons(mark(z0), z1), x2)), MARK(x0))
   MARK(sel(x0, cons(s(z0), x2))) -> c7(A__SEL(mark(x0), cons(s(mark(z0)), x2)), MARK(x0))
   MARK(sel(x0, cons(0, x2))) -> c7(A__SEL(mark(x0), cons(0, x2)), MARK(x0))
   MARK(sel(from(z0), cons(x1, x2))) -> c7(A__SEL(a__from(mark(z0)), cons(mark(x1), x2)), MARK(from(z0)))
   MARK(sel(sel(z0, z1), cons(x1, x2))) -> c7(A__SEL(a__sel(mark(z0), mark(z1)), cons(mark(x1), x2)), MARK(sel(z0, z1)))
   MARK(sel(s(z0), cons(x1, x2))) -> c7(A__SEL(s(mark(z0)), cons(mark(x1), x2)), MARK(s(z0)))
   MARK(sel(cons(z0, z1), cons(x1, x2))) -> c7(MARK(cons(z0, z1)))
   MARK(sel(0, cons(x1, x2))) -> c7(A__SEL(0, cons(mark(x1), x2)))
   MARK(sel(from(from(z0)), x1)) -> c7(A__SEL(a__from(a__from(mark(z0))), mark(x1)), MARK(from(from(z0))))
   MARK(sel(from(sel(z0, z1)), x1)) -> c7(A__SEL(a__from(a__sel(mark(z0), mark(z1))), mark(x1)), MARK(from(sel(z0, z1))))
   MARK(sel(from(cons(z0, z1)), x1)) -> c7(A__SEL(a__from(cons(mark(z0), z1)), mark(x1)), MARK(from(cons(z0, z1))))
   MARK(sel(from(s(z0)), x1)) -> c7(A__SEL(a__from(s(mark(z0))), mark(x1)), MARK(from(s(z0))))
   MARK(sel(from(0), x1)) -> c7(A__SEL(a__from(0), mark(x1)), MARK(from(0)))
   MARK(sel(from(x0), x1)) -> c7(MARK(from(x0)))
   MARK(sel(from(x0), s(z0))) -> c7(MARK(from(x0)))
   MARK(sel(from(x0), 0)) -> c7(MARK(from(x0)))
   MARK(sel(sel(x0, from(z0)), x2)) -> c7(A__SEL(a__sel(mark(x0), a__from(mark(z0))), mark(x2)), MARK(sel(x0, from(z0))))
   MARK(sel(sel(x0, sel(z0, z1)), x2)) -> c7(A__SEL(a__sel(mark(x0), a__sel(mark(z0), mark(z1))), mark(x2)), MARK(sel(x0, sel(z0, z1))))
   MARK(sel(sel(x0, cons(z0, z1)), x2)) -> c7(A__SEL(a__sel(mark(x0), cons(mark(z0), z1)), mark(x2)), MARK(sel(x0, cons(z0, z1))))
   MARK(sel(sel(x0, s(z0)), x2)) -> c7(A__SEL(a__sel(mark(x0), s(mark(z0))), mark(x2)), MARK(sel(x0, s(z0))))
   MARK(sel(sel(x0, 0), x2)) -> c7(A__SEL(a__sel(mark(x0), 0), mark(x2)), MARK(sel(x0, 0)))
   MARK(sel(sel(from(z0), x1), x2)) -> c7(A__SEL(a__sel(a__from(mark(z0)), mark(x1)), mark(x2)), MARK(sel(from(z0), x1)))
   MARK(sel(sel(sel(z0, z1), x1), x2)) -> c7(A__SEL(a__sel(a__sel(mark(z0), mark(z1)), mark(x1)), mark(x2)), MARK(sel(sel(z0, z1), x1)))
   MARK(sel(sel(cons(z0, z1), x1), x2)) -> c7(A__SEL(a__sel(cons(mark(z0), z1), mark(x1)), mark(x2)), MARK(sel(cons(z0, z1), x1)))
   MARK(sel(sel(s(z0), x1), x2)) -> c7(A__SEL(a__sel(s(mark(z0)), mark(x1)), mark(x2)), MARK(sel(s(z0), x1)))
   MARK(sel(sel(0, x1), x2)) -> c7(A__SEL(a__sel(0, mark(x1)), mark(x2)), MARK(sel(0, x1)))
   MARK(sel(sel(x0, x1), s(z0))) -> c7(MARK(sel(x0, x1)))
   MARK(sel(sel(x0, x1), 0)) -> c7(MARK(sel(x0, x1)))
   MARK(sel(sel(x0, x1), x2)) -> c7(MARK(sel(x0, x1)))
   MARK(sel(s(from(z0)), x1)) -> c7(A__SEL(s(a__from(mark(z0))), mark(x1)), MARK(s(from(z0))))
   MARK(sel(s(sel(z0, z1)), x1)) -> c7(A__SEL(s(a__sel(mark(z0), mark(z1))), mark(x1)), MARK(s(sel(z0, z1))))
   MARK(sel(s(cons(z0, z1)), x1)) -> c7(A__SEL(s(cons(mark(z0), z1)), mark(x1)), MARK(s(cons(z0, z1))))
   MARK(sel(s(s(z0)), x1)) -> c7(A__SEL(s(s(mark(z0))), mark(x1)), MARK(s(s(z0))))
   MARK(sel(s(0), x1)) -> c7(A__SEL(s(0), mark(x1)), MARK(s(0)))
   MARK(sel(s(x0), x1)) -> c7(MARK(s(x0)))
   MARK(sel(s(x0), s(z0))) -> c7(MARK(s(x0)))
   MARK(sel(s(x0), 0)) -> c7(MARK(s(x0)))
   MARK(sel(x0, from(x1))) -> c8(A__SEL(mark(x0), cons(mark(mark(x1)), from(s(mark(x1))))), MARK(from(x1)))
   MARK(sel(x0, from(from(z0)))) -> c8(A__SEL(mark(x0), a__from(a__from(mark(z0)))), MARK(from(from(z0))))
   MARK(sel(x0, from(sel(z0, z1)))) -> c8(A__SEL(mark(x0), a__from(a__sel(mark(z0), mark(z1)))), MARK(from(sel(z0, z1))))
   MARK(sel(x0, from(cons(z0, z1)))) -> c8(A__SEL(mark(x0), a__from(cons(mark(z0), z1))), MARK(from(cons(z0, z1))))
   MARK(sel(x0, from(s(z0)))) -> c8(A__SEL(mark(x0), a__from(s(mark(z0)))), MARK(from(s(z0))))
   MARK(sel(x0, from(0))) -> c8(A__SEL(mark(x0), a__from(0)), MARK(from(0)))
   MARK(sel(from(z0), from(x1))) -> c8(A__SEL(a__from(mark(z0)), a__from(mark(x1))), MARK(from(x1)))
   MARK(sel(sel(z0, z1), from(x1))) -> c8(A__SEL(a__sel(mark(z0), mark(z1)), a__from(mark(x1))), MARK(from(x1)))
   MARK(sel(s(z0), from(x1))) -> c8(A__SEL(s(mark(z0)), a__from(mark(x1))), MARK(from(x1)))
   MARK(sel(0, from(x1))) -> c8(A__SEL(0, a__from(mark(x1))), MARK(from(x1)))
   MARK(sel(x0, from(x1))) -> c8(MARK(from(x1)))
   MARK(sel(cons(z0, z1), from(x1))) -> c8(MARK(from(x1)))
   MARK(sel(x0, sel(x1, from(z0)))) -> c8(A__SEL(mark(x0), a__sel(mark(x1), a__from(mark(z0)))), MARK(sel(x1, from(z0))))
   MARK(sel(x0, sel(x1, sel(z0, z1)))) -> c8(A__SEL(mark(x0), a__sel(mark(x1), a__sel(mark(z0), mark(z1)))), MARK(sel(x1, sel(z0, z1))))
   MARK(sel(x0, sel(x1, cons(z0, z1)))) -> c8(A__SEL(mark(x0), a__sel(mark(x1), cons(mark(z0), z1))), MARK(sel(x1, cons(z0, z1))))
   MARK(sel(x0, sel(x1, s(z0)))) -> c8(A__SEL(mark(x0), a__sel(mark(x1), s(mark(z0)))), MARK(sel(x1, s(z0))))
   MARK(sel(x0, sel(x1, 0))) -> c8(A__SEL(mark(x0), a__sel(mark(x1), 0)), MARK(sel(x1, 0)))
   MARK(sel(x0, sel(from(z0), x2))) -> c8(A__SEL(mark(x0), a__sel(a__from(mark(z0)), mark(x2))), MARK(sel(from(z0), x2)))
   MARK(sel(x0, sel(sel(z0, z1), x2))) -> c8(A__SEL(mark(x0), a__sel(a__sel(mark(z0), mark(z1)), mark(x2))), MARK(sel(sel(z0, z1), x2)))
   MARK(sel(x0, sel(cons(z0, z1), x2))) -> c8(A__SEL(mark(x0), a__sel(cons(mark(z0), z1), mark(x2))), MARK(sel(cons(z0, z1), x2)))
   MARK(sel(x0, sel(s(z0), x2))) -> c8(A__SEL(mark(x0), a__sel(s(mark(z0)), mark(x2))), MARK(sel(s(z0), x2)))
   MARK(sel(x0, sel(0, x2))) -> c8(A__SEL(mark(x0), a__sel(0, mark(x2))), MARK(sel(0, x2)))
   MARK(sel(from(z0), sel(x1, x2))) -> c8(A__SEL(a__from(mark(z0)), a__sel(mark(x1), mark(x2))), MARK(sel(x1, x2)))
   MARK(sel(sel(z0, z1), sel(x1, x2))) -> c8(A__SEL(a__sel(mark(z0), mark(z1)), a__sel(mark(x1), mark(x2))), MARK(sel(x1, x2)))
   MARK(sel(s(z0), sel(x1, x2))) -> c8(A__SEL(s(mark(z0)), a__sel(mark(x1), mark(x2))), MARK(sel(x1, x2)))
   MARK(sel(0, sel(x1, x2))) -> c8(A__SEL(0, a__sel(mark(x1), mark(x2))), MARK(sel(x1, x2)))
   MARK(sel(x0, sel(x1, x2))) -> c8(MARK(sel(x1, x2)))
   MARK(sel(cons(z0, z1), sel(x1, x2))) -> c8(MARK(sel(x1, x2)))
   MARK(sel(x0, cons(from(z0), x2))) -> c8(A__SEL(mark(x0), cons(a__from(mark(z0)), x2)), MARK(cons(from(z0), x2)))
   MARK(sel(x0, cons(sel(z0, z1), x2))) -> c8(A__SEL(mark(x0), cons(a__sel(mark(z0), mark(z1)), x2)), MARK(cons(sel(z0, z1), x2)))
   MARK(sel(x0, cons(cons(z0, z1), x2))) -> c8(A__SEL(mark(x0), cons(cons(mark(z0), z1), x2)), MARK(cons(cons(z0, z1), x2)))
   MARK(sel(x0, cons(s(z0), x2))) -> c8(A__SEL(mark(x0), cons(s(mark(z0)), x2)), MARK(cons(s(z0), x2)))
   MARK(sel(x0, cons(0, x2))) -> c8(A__SEL(mark(x0), cons(0, x2)), MARK(cons(0, x2)))
   MARK(sel(from(z0), cons(x1, x2))) -> c8(A__SEL(a__from(mark(z0)), cons(mark(x1), x2)), MARK(cons(x1, x2)))
   MARK(sel(sel(z0, z1), cons(x1, x2))) -> c8(A__SEL(a__sel(mark(z0), mark(z1)), cons(mark(x1), x2)), MARK(cons(x1, x2)))
   MARK(sel(s(z0), cons(x1, x2))) -> c8(A__SEL(s(mark(z0)), cons(mark(x1), x2)), MARK(cons(x1, x2)))
   MARK(sel(0, cons(x1, x2))) -> c8(A__SEL(0, cons(mark(x1), x2)), MARK(cons(x1, x2)))
   MARK(sel(x0, cons(x1, x2))) -> c8(MARK(cons(x1, x2)))
   MARK(sel(cons(z0, z1), cons(x1, x2))) -> c8(MARK(cons(x1, x2)))
   MARK(sel(from(from(z0)), x1)) -> c8(A__SEL(a__from(a__from(mark(z0))), mark(x1)), MARK(x1))
   MARK(sel(from(sel(z0, z1)), x1)) -> c8(A__SEL(a__from(a__sel(mark(z0), mark(z1))), mark(x1)), MARK(x1))
   MARK(sel(from(cons(z0, z1)), x1)) -> c8(A__SEL(a__from(cons(mark(z0), z1)), mark(x1)), MARK(x1))
   MARK(sel(from(s(z0)), x1)) -> c8(A__SEL(a__from(s(mark(z0))), mark(x1)), MARK(x1))
   MARK(sel(from(0), x1)) -> c8(A__SEL(a__from(0), mark(x1)), MARK(x1))
   MARK(sel(from(x0), s(z0))) -> c8(MARK(s(z0)))
   MARK(sel(from(x0), x1)) -> c8(MARK(x1))
   MARK(sel(sel(x0, from(z0)), x2)) -> c8(A__SEL(a__sel(mark(x0), a__from(mark(z0))), mark(x2)), MARK(x2))
   MARK(sel(sel(x0, sel(z0, z1)), x2)) -> c8(A__SEL(a__sel(mark(x0), a__sel(mark(z0), mark(z1))), mark(x2)), MARK(x2))
   MARK(sel(sel(x0, cons(z0, z1)), x2)) -> c8(A__SEL(a__sel(mark(x0), cons(mark(z0), z1)), mark(x2)), MARK(x2))
   MARK(sel(sel(x0, s(z0)), x2)) -> c8(A__SEL(a__sel(mark(x0), s(mark(z0))), mark(x2)), MARK(x2))
   MARK(sel(sel(x0, 0), x2)) -> c8(A__SEL(a__sel(mark(x0), 0), mark(x2)), MARK(x2))
   MARK(sel(sel(from(z0), x1), x2)) -> c8(A__SEL(a__sel(a__from(mark(z0)), mark(x1)), mark(x2)), MARK(x2))
   MARK(sel(sel(sel(z0, z1), x1), x2)) -> c8(A__SEL(a__sel(a__sel(mark(z0), mark(z1)), mark(x1)), mark(x2)), MARK(x2))
   MARK(sel(sel(cons(z0, z1), x1), x2)) -> c8(A__SEL(a__sel(cons(mark(z0), z1), mark(x1)), mark(x2)), MARK(x2))
   MARK(sel(sel(s(z0), x1), x2)) -> c8(A__SEL(a__sel(s(mark(z0)), mark(x1)), mark(x2)), MARK(x2))
   MARK(sel(sel(0, x1), x2)) -> c8(A__SEL(a__sel(0, mark(x1)), mark(x2)), MARK(x2))
   MARK(sel(sel(x0, x1), s(z0))) -> c8(MARK(s(z0)))
   MARK(sel(sel(x0, x1), x2)) -> c8(MARK(x2))
   MARK(sel(s(from(z0)), x1)) -> c8(A__SEL(s(a__from(mark(z0))), mark(x1)), MARK(x1))
   MARK(sel(s(sel(z0, z1)), x1)) -> c8(A__SEL(s(a__sel(mark(z0), mark(z1))), mark(x1)), MARK(x1))
   MARK(sel(s(cons(z0, z1)), x1)) -> c8(A__SEL(s(cons(mark(z0), z1)), mark(x1)), MARK(x1))
   MARK(sel(s(s(z0)), x1)) -> c8(A__SEL(s(s(mark(z0))), mark(x1)), MARK(x1))
   MARK(sel(s(0), x1)) -> c8(A__SEL(s(0), mark(x1)), MARK(x1))
   MARK(sel(s(x0), s(z0))) -> c8(MARK(s(z0)))
K tuples:none
Defined Rule Symbols:   a__from_1, a__sel_2, mark_1

Defined Pair Symbols:   A__FROM_1, A__SEL_2, MARK_1

Compound Symbols:   c_1, c2_1, c6_2, c9_1, c10_1, c3_1, c4_1, c7_1, c8_2, c8_1, c3_2, c4_2, c7_2


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

(199) CdtNarrowingProof (BOTH BOUNDS(ID, ID))
Use narrowing to replace MARK(sel(0, x1)) -> c8(A__SEL(0, mark(x1)), MARK(x1)) by 
   MARK(sel(0, from(z0))) -> c8(A__SEL(0, a__from(mark(z0))), MARK(from(z0)))
   MARK(sel(0, sel(z0, z1))) -> c8(A__SEL(0, a__sel(mark(z0), mark(z1))), MARK(sel(z0, z1)))
   MARK(sel(0, cons(z0, z1))) -> c8(A__SEL(0, cons(mark(z0), z1)), MARK(cons(z0, z1)))
   MARK(sel(0, s(z0))) -> c8(A__SEL(0, s(mark(z0))), MARK(s(z0)))
   MARK(sel(0, 0)) -> c8(A__SEL(0, 0), MARK(0))

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

(200)
Obligation:
Complexity Dependency Tuples Problem

Rules:
   a__from(z0) -> cons(mark(z0), from(s(z0)))
   a__from(z0) -> from(z0)
   a__sel(0, cons(z0, z1)) -> mark(z0)
   a__sel(s(z0), cons(z1, z2)) -> a__sel(mark(z0), mark(z2))
   a__sel(z0, z1) -> sel(z0, z1)
   mark(from(z0)) -> a__from(mark(z0))
   mark(sel(z0, z1)) -> a__sel(mark(z0), mark(z1))
   mark(cons(z0, z1)) -> cons(mark(z0), z1)
   mark(s(z0)) -> s(mark(z0))
   mark(0) -> 0
Tuples:
   A__FROM(z0) -> c(MARK(z0))
   A__SEL(0, cons(z0, z1)) -> c2(MARK(z0))
   MARK(from(z0)) -> c6(A__FROM(mark(z0)), MARK(z0))
   MARK(cons(z0, z1)) -> c9(MARK(z0))
   MARK(s(z0)) -> c10(MARK(z0))
   A__SEL(s(x0), cons(x1, s(z0))) -> c3(MARK(x0))
   A__SEL(s(x0), cons(x1, 0)) -> c3(MARK(x0))
   A__SEL(s(cons(z0, z1)), cons(x1, x2)) -> c3(MARK(cons(z0, z1)))
   A__SEL(s(x0), cons(x1, s(z0))) -> c4(MARK(s(z0)))
   A__SEL(s(cons(z0, z1)), cons(x1, x2)) -> c4(MARK(x2))
   MARK(sel(x0, s(z0))) -> c7(MARK(x0))
   MARK(sel(x0, 0)) -> c7(MARK(x0))
   MARK(sel(cons(z0, z1), x1)) -> c7(MARK(cons(z0, z1)))
   MARK(sel(x0, s(z0))) -> c8(MARK(s(z0)))
   MARK(sel(cons(z0, z1), x1)) -> c8(MARK(x1))
   A__SEL(s(x0), cons(x1, from(x2))) -> c3(A__SEL(mark(x0), cons(mark(mark(x2)), from(s(mark(x2))))), MARK(x0))
   A__SEL(s(x0), cons(x1, from(from(z0)))) -> c3(A__SEL(mark(x0), a__from(a__from(mark(z0)))), MARK(x0))
   A__SEL(s(x0), cons(x1, from(sel(z0, z1)))) -> c3(A__SEL(mark(x0), a__from(a__sel(mark(z0), mark(z1)))), MARK(x0))
   A__SEL(s(x0), cons(x1, from(cons(z0, z1)))) -> c3(A__SEL(mark(x0), a__from(cons(mark(z0), z1))), MARK(x0))
   A__SEL(s(x0), cons(x1, from(s(z0)))) -> c3(A__SEL(mark(x0), a__from(s(mark(z0)))), MARK(x0))
   A__SEL(s(x0), cons(x1, from(0))) -> c3(A__SEL(mark(x0), a__from(0)), MARK(x0))
   A__SEL(s(from(z0)), cons(x1, from(x2))) -> c3(A__SEL(a__from(mark(z0)), a__from(mark(x2))), MARK(from(z0)))
   A__SEL(s(sel(z0, z1)), cons(x1, from(x2))) -> c3(A__SEL(a__sel(mark(z0), mark(z1)), a__from(mark(x2))), MARK(sel(z0, z1)))
   A__SEL(s(s(z0)), cons(x1, from(x2))) -> c3(A__SEL(s(mark(z0)), a__from(mark(x2))), MARK(s(z0)))
   A__SEL(s(x0), cons(x1, from(x2))) -> c3(MARK(x0))
   A__SEL(s(cons(z0, z1)), cons(x1, from(x2))) -> c3(MARK(cons(z0, z1)))
   A__SEL(s(0), cons(x1, from(x2))) -> c3(A__SEL(0, a__from(mark(x2))))
   A__SEL(s(x0), cons(x1, sel(x2, from(z0)))) -> c3(A__SEL(mark(x0), a__sel(mark(x2), a__from(mark(z0)))), MARK(x0))
   A__SEL(s(x0), cons(x1, sel(x2, sel(z0, z1)))) -> c3(A__SEL(mark(x0), a__sel(mark(x2), a__sel(mark(z0), mark(z1)))), MARK(x0))
   A__SEL(s(x0), cons(x1, sel(x2, cons(z0, z1)))) -> c3(A__SEL(mark(x0), a__sel(mark(x2), cons(mark(z0), z1))), MARK(x0))
   A__SEL(s(x0), cons(x1, sel(x2, s(z0)))) -> c3(A__SEL(mark(x0), a__sel(mark(x2), s(mark(z0)))), MARK(x0))
   A__SEL(s(x0), cons(x1, sel(x2, 0))) -> c3(A__SEL(mark(x0), a__sel(mark(x2), 0)), MARK(x0))
   A__SEL(s(x0), cons(x1, sel(from(z0), x3))) -> c3(A__SEL(mark(x0), a__sel(a__from(mark(z0)), mark(x3))), MARK(x0))
   A__SEL(s(x0), cons(x1, sel(sel(z0, z1), x3))) -> c3(A__SEL(mark(x0), a__sel(a__sel(mark(z0), mark(z1)), mark(x3))), MARK(x0))
   A__SEL(s(x0), cons(x1, sel(cons(z0, z1), x3))) -> c3(A__SEL(mark(x0), a__sel(cons(mark(z0), z1), mark(x3))), MARK(x0))
   A__SEL(s(x0), cons(x1, sel(s(z0), x3))) -> c3(A__SEL(mark(x0), a__sel(s(mark(z0)), mark(x3))), MARK(x0))
   A__SEL(s(x0), cons(x1, sel(0, x3))) -> c3(A__SEL(mark(x0), a__sel(0, mark(x3))), MARK(x0))
   A__SEL(s(from(z0)), cons(x1, sel(x2, x3))) -> c3(A__SEL(a__from(mark(z0)), a__sel(mark(x2), mark(x3))), MARK(from(z0)))
   A__SEL(s(sel(z0, z1)), cons(x1, sel(x2, x3))) -> c3(A__SEL(a__sel(mark(z0), mark(z1)), a__sel(mark(x2), mark(x3))), MARK(sel(z0, z1)))
   A__SEL(s(s(z0)), cons(x1, sel(x2, x3))) -> c3(A__SEL(s(mark(z0)), a__sel(mark(x2), mark(x3))), MARK(s(z0)))
   A__SEL(s(x0), cons(x1, sel(x2, x3))) -> c3(MARK(x0))
   A__SEL(s(cons(z0, z1)), cons(x1, sel(x2, x3))) -> c3(MARK(cons(z0, z1)))
   A__SEL(s(0), cons(x1, sel(x2, x3))) -> c3(A__SEL(0, a__sel(mark(x2), mark(x3))))
   A__SEL(s(x0), cons(x1, cons(from(z0), x3))) -> c3(A__SEL(mark(x0), cons(a__from(mark(z0)), x3)), MARK(x0))
   A__SEL(s(x0), cons(x1, cons(sel(z0, z1), x3))) -> c3(A__SEL(mark(x0), cons(a__sel(mark(z0), mark(z1)), x3)), MARK(x0))
   A__SEL(s(x0), cons(x1, cons(cons(z0, z1), x3))) -> c3(A__SEL(mark(x0), cons(cons(mark(z0), z1), x3)), MARK(x0))
   A__SEL(s(x0), cons(x1, cons(s(z0), x3))) -> c3(A__SEL(mark(x0), cons(s(mark(z0)), x3)), MARK(x0))
   A__SEL(s(x0), cons(x1, cons(0, x3))) -> c3(A__SEL(mark(x0), cons(0, x3)), MARK(x0))
   A__SEL(s(from(z0)), cons(x1, cons(x2, x3))) -> c3(A__SEL(a__from(mark(z0)), cons(mark(x2), x3)), MARK(from(z0)))
   A__SEL(s(sel(z0, z1)), cons(x1, cons(x2, x3))) -> c3(A__SEL(a__sel(mark(z0), mark(z1)), cons(mark(x2), x3)), MARK(sel(z0, z1)))
   A__SEL(s(s(z0)), cons(x1, cons(x2, x3))) -> c3(A__SEL(s(mark(z0)), cons(mark(x2), x3)), MARK(s(z0)))
   A__SEL(s(cons(z0, z1)), cons(x1, cons(x2, x3))) -> c3(MARK(cons(z0, z1)))
   A__SEL(s(0), cons(x1, cons(x2, x3))) -> c3(A__SEL(0, cons(mark(x2), x3)))
   A__SEL(s(from(from(z0))), cons(x1, x2)) -> c3(A__SEL(a__from(a__from(mark(z0))), mark(x2)), MARK(from(from(z0))))
   A__SEL(s(from(sel(z0, z1))), cons(x1, x2)) -> c3(A__SEL(a__from(a__sel(mark(z0), mark(z1))), mark(x2)), MARK(from(sel(z0, z1))))
   A__SEL(s(from(cons(z0, z1))), cons(x1, x2)) -> c3(A__SEL(a__from(cons(mark(z0), z1)), mark(x2)), MARK(from(cons(z0, z1))))
   A__SEL(s(from(s(z0))), cons(x1, x2)) -> c3(A__SEL(a__from(s(mark(z0))), mark(x2)), MARK(from(s(z0))))
   A__SEL(s(from(0)), cons(x1, x2)) -> c3(A__SEL(a__from(0), mark(x2)), MARK(from(0)))
   A__SEL(s(from(x0)), cons(x1, x2)) -> c3(MARK(from(x0)))
   A__SEL(s(from(x0)), cons(x1, s(z0))) -> c3(MARK(from(x0)))
   A__SEL(s(from(x0)), cons(x1, 0)) -> c3(MARK(from(x0)))
   A__SEL(s(sel(x0, from(z0))), cons(x2, x3)) -> c3(A__SEL(a__sel(mark(x0), a__from(mark(z0))), mark(x3)), MARK(sel(x0, from(z0))))
   A__SEL(s(sel(x0, sel(z0, z1))), cons(x2, x3)) -> c3(A__SEL(a__sel(mark(x0), a__sel(mark(z0), mark(z1))), mark(x3)), MARK(sel(x0, sel(z0, z1))))
   A__SEL(s(sel(x0, cons(z0, z1))), cons(x2, x3)) -> c3(A__SEL(a__sel(mark(x0), cons(mark(z0), z1)), mark(x3)), MARK(sel(x0, cons(z0, z1))))
   A__SEL(s(sel(x0, s(z0))), cons(x2, x3)) -> c3(A__SEL(a__sel(mark(x0), s(mark(z0))), mark(x3)), MARK(sel(x0, s(z0))))
   A__SEL(s(sel(x0, 0)), cons(x2, x3)) -> c3(A__SEL(a__sel(mark(x0), 0), mark(x3)), MARK(sel(x0, 0)))
   A__SEL(s(sel(from(z0), x1)), cons(x2, x3)) -> c3(A__SEL(a__sel(a__from(mark(z0)), mark(x1)), mark(x3)), MARK(sel(from(z0), x1)))
   A__SEL(s(sel(sel(z0, z1), x1)), cons(x2, x3)) -> c3(A__SEL(a__sel(a__sel(mark(z0), mark(z1)), mark(x1)), mark(x3)), MARK(sel(sel(z0, z1), x1)))
   A__SEL(s(sel(cons(z0, z1), x1)), cons(x2, x3)) -> c3(A__SEL(a__sel(cons(mark(z0), z1), mark(x1)), mark(x3)), MARK(sel(cons(z0, z1), x1)))
   A__SEL(s(sel(s(z0), x1)), cons(x2, x3)) -> c3(A__SEL(a__sel(s(mark(z0)), mark(x1)), mark(x3)), MARK(sel(s(z0), x1)))
   A__SEL(s(sel(0, x1)), cons(x2, x3)) -> c3(A__SEL(a__sel(0, mark(x1)), mark(x3)), MARK(sel(0, x1)))
   A__SEL(s(sel(x0, x1)), cons(x2, s(z0))) -> c3(MARK(sel(x0, x1)))
   A__SEL(s(sel(x0, x1)), cons(x2, 0)) -> c3(MARK(sel(x0, x1)))
   A__SEL(s(sel(x0, x1)), cons(x2, x3)) -> c3(MARK(sel(x0, x1)))
   A__SEL(s(s(from(z0))), cons(x1, x2)) -> c3(A__SEL(s(a__from(mark(z0))), mark(x2)), MARK(s(from(z0))))
   A__SEL(s(s(sel(z0, z1))), cons(x1, x2)) -> c3(A__SEL(s(a__sel(mark(z0), mark(z1))), mark(x2)), MARK(s(sel(z0, z1))))
   A__SEL(s(s(cons(z0, z1))), cons(x1, x2)) -> c3(A__SEL(s(cons(mark(z0), z1)), mark(x2)), MARK(s(cons(z0, z1))))
   A__SEL(s(s(s(z0))), cons(x1, x2)) -> c3(A__SEL(s(s(mark(z0))), mark(x2)), MARK(s(s(z0))))
   A__SEL(s(s(0)), cons(x1, x2)) -> c3(A__SEL(s(0), mark(x2)), MARK(s(0)))
   A__SEL(s(s(x0)), cons(x1, x2)) -> c3(MARK(s(x0)))
   A__SEL(s(s(x0)), cons(x1, s(z0))) -> c3(MARK(s(x0)))
   A__SEL(s(s(x0)), cons(x1, 0)) -> c3(MARK(s(x0)))
   A__SEL(s(x0), cons(x1, from(x2))) -> c4(A__SEL(mark(x0), cons(mark(mark(x2)), from(s(mark(x2))))), MARK(from(x2)))
   A__SEL(s(x0), cons(x1, from(from(z0)))) -> c4(A__SEL(mark(x0), a__from(a__from(mark(z0)))), MARK(from(from(z0))))
   A__SEL(s(x0), cons(x1, from(sel(z0, z1)))) -> c4(A__SEL(mark(x0), a__from(a__sel(mark(z0), mark(z1)))), MARK(from(sel(z0, z1))))
   A__SEL(s(x0), cons(x1, from(cons(z0, z1)))) -> c4(A__SEL(mark(x0), a__from(cons(mark(z0), z1))), MARK(from(cons(z0, z1))))
   A__SEL(s(x0), cons(x1, from(s(z0)))) -> c4(A__SEL(mark(x0), a__from(s(mark(z0)))), MARK(from(s(z0))))
   A__SEL(s(x0), cons(x1, from(0))) -> c4(A__SEL(mark(x0), a__from(0)), MARK(from(0)))
   A__SEL(s(from(z0)), cons(x1, from(x2))) -> c4(A__SEL(a__from(mark(z0)), a__from(mark(x2))), MARK(from(x2)))
   A__SEL(s(sel(z0, z1)), cons(x1, from(x2))) -> c4(A__SEL(a__sel(mark(z0), mark(z1)), a__from(mark(x2))), MARK(from(x2)))
   A__SEL(s(s(z0)), cons(x1, from(x2))) -> c4(A__SEL(s(mark(z0)), a__from(mark(x2))), MARK(from(x2)))
   A__SEL(s(0), cons(x1, from(x2))) -> c4(A__SEL(0, a__from(mark(x2))), MARK(from(x2)))
   A__SEL(s(x0), cons(x1, from(x2))) -> c4(MARK(from(x2)))
   A__SEL(s(cons(z0, z1)), cons(x1, from(x2))) -> c4(MARK(from(x2)))
   A__SEL(s(x0), cons(x1, sel(x2, from(z0)))) -> c4(A__SEL(mark(x0), a__sel(mark(x2), a__from(mark(z0)))), MARK(sel(x2, from(z0))))
   A__SEL(s(x0), cons(x1, sel(x2, sel(z0, z1)))) -> c4(A__SEL(mark(x0), a__sel(mark(x2), a__sel(mark(z0), mark(z1)))), MARK(sel(x2, sel(z0, z1))))
   A__SEL(s(x0), cons(x1, sel(x2, cons(z0, z1)))) -> c4(A__SEL(mark(x0), a__sel(mark(x2), cons(mark(z0), z1))), MARK(sel(x2, cons(z0, z1))))
   A__SEL(s(x0), cons(x1, sel(x2, s(z0)))) -> c4(A__SEL(mark(x0), a__sel(mark(x2), s(mark(z0)))), MARK(sel(x2, s(z0))))
   A__SEL(s(x0), cons(x1, sel(x2, 0))) -> c4(A__SEL(mark(x0), a__sel(mark(x2), 0)), MARK(sel(x2, 0)))
   A__SEL(s(x0), cons(x1, sel(from(z0), x3))) -> c4(A__SEL(mark(x0), a__sel(a__from(mark(z0)), mark(x3))), MARK(sel(from(z0), x3)))
   A__SEL(s(x0), cons(x1, sel(sel(z0, z1), x3))) -> c4(A__SEL(mark(x0), a__sel(a__sel(mark(z0), mark(z1)), mark(x3))), MARK(sel(sel(z0, z1), x3)))
   A__SEL(s(x0), cons(x1, sel(cons(z0, z1), x3))) -> c4(A__SEL(mark(x0), a__sel(cons(mark(z0), z1), mark(x3))), MARK(sel(cons(z0, z1), x3)))
   A__SEL(s(x0), cons(x1, sel(s(z0), x3))) -> c4(A__SEL(mark(x0), a__sel(s(mark(z0)), mark(x3))), MARK(sel(s(z0), x3)))
   A__SEL(s(x0), cons(x1, sel(0, x3))) -> c4(A__SEL(mark(x0), a__sel(0, mark(x3))), MARK(sel(0, x3)))
   A__SEL(s(from(z0)), cons(x1, sel(x2, x3))) -> c4(A__SEL(a__from(mark(z0)), a__sel(mark(x2), mark(x3))), MARK(sel(x2, x3)))
   A__SEL(s(sel(z0, z1)), cons(x1, sel(x2, x3))) -> c4(A__SEL(a__sel(mark(z0), mark(z1)), a__sel(mark(x2), mark(x3))), MARK(sel(x2, x3)))
   A__SEL(s(s(z0)), cons(x1, sel(x2, x3))) -> c4(A__SEL(s(mark(z0)), a__sel(mark(x2), mark(x3))), MARK(sel(x2, x3)))
   A__SEL(s(0), cons(x1, sel(x2, x3))) -> c4(A__SEL(0, a__sel(mark(x2), mark(x3))), MARK(sel(x2, x3)))
   A__SEL(s(x0), cons(x1, sel(x2, x3))) -> c4(MARK(sel(x2, x3)))
   A__SEL(s(cons(z0, z1)), cons(x1, sel(x2, x3))) -> c4(MARK(sel(x2, x3)))
   A__SEL(s(x0), cons(x1, cons(from(z0), x3))) -> c4(A__SEL(mark(x0), cons(a__from(mark(z0)), x3)), MARK(cons(from(z0), x3)))
   A__SEL(s(x0), cons(x1, cons(sel(z0, z1), x3))) -> c4(A__SEL(mark(x0), cons(a__sel(mark(z0), mark(z1)), x3)), MARK(cons(sel(z0, z1), x3)))
   A__SEL(s(x0), cons(x1, cons(cons(z0, z1), x3))) -> c4(A__SEL(mark(x0), cons(cons(mark(z0), z1), x3)), MARK(cons(cons(z0, z1), x3)))
   A__SEL(s(x0), cons(x1, cons(s(z0), x3))) -> c4(A__SEL(mark(x0), cons(s(mark(z0)), x3)), MARK(cons(s(z0), x3)))
   A__SEL(s(x0), cons(x1, cons(0, x3))) -> c4(A__SEL(mark(x0), cons(0, x3)), MARK(cons(0, x3)))
   A__SEL(s(from(z0)), cons(x1, cons(x2, x3))) -> c4(A__SEL(a__from(mark(z0)), cons(mark(x2), x3)), MARK(cons(x2, x3)))
   A__SEL(s(sel(z0, z1)), cons(x1, cons(x2, x3))) -> c4(A__SEL(a__sel(mark(z0), mark(z1)), cons(mark(x2), x3)), MARK(cons(x2, x3)))
   A__SEL(s(s(z0)), cons(x1, cons(x2, x3))) -> c4(A__SEL(s(mark(z0)), cons(mark(x2), x3)), MARK(cons(x2, x3)))
   A__SEL(s(0), cons(x1, cons(x2, x3))) -> c4(A__SEL(0, cons(mark(x2), x3)), MARK(cons(x2, x3)))
   A__SEL(s(x0), cons(x1, cons(x2, x3))) -> c4(MARK(cons(x2, x3)))
   A__SEL(s(cons(z0, z1)), cons(x1, cons(x2, x3))) -> c4(MARK(cons(x2, x3)))
   A__SEL(s(from(from(z0))), cons(x1, x2)) -> c4(A__SEL(a__from(a__from(mark(z0))), mark(x2)), MARK(x2))
   A__SEL(s(from(sel(z0, z1))), cons(x1, x2)) -> c4(A__SEL(a__from(a__sel(mark(z0), mark(z1))), mark(x2)), MARK(x2))
   A__SEL(s(from(cons(z0, z1))), cons(x1, x2)) -> c4(A__SEL(a__from(cons(mark(z0), z1)), mark(x2)), MARK(x2))
   A__SEL(s(from(s(z0))), cons(x1, x2)) -> c4(A__SEL(a__from(s(mark(z0))), mark(x2)), MARK(x2))
   A__SEL(s(from(0)), cons(x1, x2)) -> c4(A__SEL(a__from(0), mark(x2)), MARK(x2))
   A__SEL(s(from(x0)), cons(x1, s(z0))) -> c4(MARK(s(z0)))
   A__SEL(s(from(x0)), cons(x1, x2)) -> c4(MARK(x2))
   A__SEL(s(sel(x0, from(z0))), cons(x2, x3)) -> c4(A__SEL(a__sel(mark(x0), a__from(mark(z0))), mark(x3)), MARK(x3))
   A__SEL(s(sel(x0, sel(z0, z1))), cons(x2, x3)) -> c4(A__SEL(a__sel(mark(x0), a__sel(mark(z0), mark(z1))), mark(x3)), MARK(x3))
   A__SEL(s(sel(x0, cons(z0, z1))), cons(x2, x3)) -> c4(A__SEL(a__sel(mark(x0), cons(mark(z0), z1)), mark(x3)), MARK(x3))
   A__SEL(s(sel(x0, s(z0))), cons(x2, x3)) -> c4(A__SEL(a__sel(mark(x0), s(mark(z0))), mark(x3)), MARK(x3))
   A__SEL(s(sel(x0, 0)), cons(x2, x3)) -> c4(A__SEL(a__sel(mark(x0), 0), mark(x3)), MARK(x3))
   A__SEL(s(sel(from(z0), x1)), cons(x2, x3)) -> c4(A__SEL(a__sel(a__from(mark(z0)), mark(x1)), mark(x3)), MARK(x3))
   A__SEL(s(sel(sel(z0, z1), x1)), cons(x2, x3)) -> c4(A__SEL(a__sel(a__sel(mark(z0), mark(z1)), mark(x1)), mark(x3)), MARK(x3))
   A__SEL(s(sel(cons(z0, z1), x1)), cons(x2, x3)) -> c4(A__SEL(a__sel(cons(mark(z0), z1), mark(x1)), mark(x3)), MARK(x3))
   A__SEL(s(sel(s(z0), x1)), cons(x2, x3)) -> c4(A__SEL(a__sel(s(mark(z0)), mark(x1)), mark(x3)), MARK(x3))
   A__SEL(s(sel(0, x1)), cons(x2, x3)) -> c4(A__SEL(a__sel(0, mark(x1)), mark(x3)), MARK(x3))
   A__SEL(s(sel(x0, x1)), cons(x2, s(z0))) -> c4(MARK(s(z0)))
   A__SEL(s(sel(x0, x1)), cons(x2, x3)) -> c4(MARK(x3))
   A__SEL(s(s(from(z0))), cons(x1, x2)) -> c4(A__SEL(s(a__from(mark(z0))), mark(x2)), MARK(x2))
   A__SEL(s(s(sel(z0, z1))), cons(x1, x2)) -> c4(A__SEL(s(a__sel(mark(z0), mark(z1))), mark(x2)), MARK(x2))
   A__SEL(s(s(cons(z0, z1))), cons(x1, x2)) -> c4(A__SEL(s(cons(mark(z0), z1)), mark(x2)), MARK(x2))
   A__SEL(s(s(s(z0))), cons(x1, x2)) -> c4(A__SEL(s(s(mark(z0))), mark(x2)), MARK(x2))
   A__SEL(s(s(0)), cons(x1, x2)) -> c4(A__SEL(s(0), mark(x2)), MARK(x2))
   A__SEL(s(s(x0)), cons(x1, s(z0))) -> c4(MARK(s(z0)))
   A__SEL(s(0), cons(x0, s(z0))) -> c4(MARK(s(z0)))
   MARK(sel(x0, from(x1))) -> c7(A__SEL(mark(x0), cons(mark(mark(x1)), from(s(mark(x1))))), MARK(x0))
   MARK(sel(x0, from(from(z0)))) -> c7(A__SEL(mark(x0), a__from(a__from(mark(z0)))), MARK(x0))
   MARK(sel(x0, from(sel(z0, z1)))) -> c7(A__SEL(mark(x0), a__from(a__sel(mark(z0), mark(z1)))), MARK(x0))
   MARK(sel(x0, from(cons(z0, z1)))) -> c7(A__SEL(mark(x0), a__from(cons(mark(z0), z1))), MARK(x0))
   MARK(sel(x0, from(s(z0)))) -> c7(A__SEL(mark(x0), a__from(s(mark(z0)))), MARK(x0))
   MARK(sel(x0, from(0))) -> c7(A__SEL(mark(x0), a__from(0)), MARK(x0))
   MARK(sel(from(z0), from(x1))) -> c7(A__SEL(a__from(mark(z0)), a__from(mark(x1))), MARK(from(z0)))
   MARK(sel(sel(z0, z1), from(x1))) -> c7(A__SEL(a__sel(mark(z0), mark(z1)), a__from(mark(x1))), MARK(sel(z0, z1)))
   MARK(sel(s(z0), from(x1))) -> c7(A__SEL(s(mark(z0)), a__from(mark(x1))), MARK(s(z0)))
   MARK(sel(x0, from(x1))) -> c7(MARK(x0))
   MARK(sel(cons(z0, z1), from(x1))) -> c7(MARK(cons(z0, z1)))
   MARK(sel(0, from(x1))) -> c7(A__SEL(0, a__from(mark(x1))))
   MARK(sel(x0, sel(x1, from(z0)))) -> c7(A__SEL(mark(x0), a__sel(mark(x1), a__from(mark(z0)))), MARK(x0))
   MARK(sel(x0, sel(x1, sel(z0, z1)))) -> c7(A__SEL(mark(x0), a__sel(mark(x1), a__sel(mark(z0), mark(z1)))), MARK(x0))
   MARK(sel(x0, sel(x1, cons(z0, z1)))) -> c7(A__SEL(mark(x0), a__sel(mark(x1), cons(mark(z0), z1))), MARK(x0))
   MARK(sel(x0, sel(x1, s(z0)))) -> c7(A__SEL(mark(x0), a__sel(mark(x1), s(mark(z0)))), MARK(x0))
   MARK(sel(x0, sel(x1, 0))) -> c7(A__SEL(mark(x0), a__sel(mark(x1), 0)), MARK(x0))
   MARK(sel(x0, sel(from(z0), x2))) -> c7(A__SEL(mark(x0), a__sel(a__from(mark(z0)), mark(x2))), MARK(x0))
   MARK(sel(x0, sel(sel(z0, z1), x2))) -> c7(A__SEL(mark(x0), a__sel(a__sel(mark(z0), mark(z1)), mark(x2))), MARK(x0))
   MARK(sel(x0, sel(cons(z0, z1), x2))) -> c7(A__SEL(mark(x0), a__sel(cons(mark(z0), z1), mark(x2))), MARK(x0))
   MARK(sel(x0, sel(s(z0), x2))) -> c7(A__SEL(mark(x0), a__sel(s(mark(z0)), mark(x2))), MARK(x0))
   MARK(sel(x0, sel(0, x2))) -> c7(A__SEL(mark(x0), a__sel(0, mark(x2))), MARK(x0))
   MARK(sel(from(z0), sel(x1, x2))) -> c7(A__SEL(a__from(mark(z0)), a__sel(mark(x1), mark(x2))), MARK(from(z0)))
   MARK(sel(sel(z0, z1), sel(x1, x2))) -> c7(A__SEL(a__sel(mark(z0), mark(z1)), a__sel(mark(x1), mark(x2))), MARK(sel(z0, z1)))
   MARK(sel(s(z0), sel(x1, x2))) -> c7(A__SEL(s(mark(z0)), a__sel(mark(x1), mark(x2))), MARK(s(z0)))
   MARK(sel(x0, sel(x1, x2))) -> c7(MARK(x0))
   MARK(sel(cons(z0, z1), sel(x1, x2))) -> c7(MARK(cons(z0, z1)))
   MARK(sel(0, sel(x1, x2))) -> c7(A__SEL(0, a__sel(mark(x1), mark(x2))))
   MARK(sel(x0, cons(from(z0), x2))) -> c7(A__SEL(mark(x0), cons(a__from(mark(z0)), x2)), MARK(x0))
   MARK(sel(x0, cons(sel(z0, z1), x2))) -> c7(A__SEL(mark(x0), cons(a__sel(mark(z0), mark(z1)), x2)), MARK(x0))
   MARK(sel(x0, cons(cons(z0, z1), x2))) -> c7(A__SEL(mark(x0), cons(cons(mark(z0), z1), x2)), MARK(x0))
   MARK(sel(x0, cons(s(z0), x2))) -> c7(A__SEL(mark(x0), cons(s(mark(z0)), x2)), MARK(x0))
   MARK(sel(x0, cons(0, x2))) -> c7(A__SEL(mark(x0), cons(0, x2)), MARK(x0))
   MARK(sel(from(z0), cons(x1, x2))) -> c7(A__SEL(a__from(mark(z0)), cons(mark(x1), x2)), MARK(from(z0)))
   MARK(sel(sel(z0, z1), cons(x1, x2))) -> c7(A__SEL(a__sel(mark(z0), mark(z1)), cons(mark(x1), x2)), MARK(sel(z0, z1)))
   MARK(sel(s(z0), cons(x1, x2))) -> c7(A__SEL(s(mark(z0)), cons(mark(x1), x2)), MARK(s(z0)))
   MARK(sel(cons(z0, z1), cons(x1, x2))) -> c7(MARK(cons(z0, z1)))
   MARK(sel(0, cons(x1, x2))) -> c7(A__SEL(0, cons(mark(x1), x2)))
   MARK(sel(from(from(z0)), x1)) -> c7(A__SEL(a__from(a__from(mark(z0))), mark(x1)), MARK(from(from(z0))))
   MARK(sel(from(sel(z0, z1)), x1)) -> c7(A__SEL(a__from(a__sel(mark(z0), mark(z1))), mark(x1)), MARK(from(sel(z0, z1))))
   MARK(sel(from(cons(z0, z1)), x1)) -> c7(A__SEL(a__from(cons(mark(z0), z1)), mark(x1)), MARK(from(cons(z0, z1))))
   MARK(sel(from(s(z0)), x1)) -> c7(A__SEL(a__from(s(mark(z0))), mark(x1)), MARK(from(s(z0))))
   MARK(sel(from(0), x1)) -> c7(A__SEL(a__from(0), mark(x1)), MARK(from(0)))
   MARK(sel(from(x0), x1)) -> c7(MARK(from(x0)))
   MARK(sel(from(x0), s(z0))) -> c7(MARK(from(x0)))
   MARK(sel(from(x0), 0)) -> c7(MARK(from(x0)))
   MARK(sel(sel(x0, from(z0)), x2)) -> c7(A__SEL(a__sel(mark(x0), a__from(mark(z0))), mark(x2)), MARK(sel(x0, from(z0))))
   MARK(sel(sel(x0, sel(z0, z1)), x2)) -> c7(A__SEL(a__sel(mark(x0), a__sel(mark(z0), mark(z1))), mark(x2)), MARK(sel(x0, sel(z0, z1))))
   MARK(sel(sel(x0, cons(z0, z1)), x2)) -> c7(A__SEL(a__sel(mark(x0), cons(mark(z0), z1)), mark(x2)), MARK(sel(x0, cons(z0, z1))))
   MARK(sel(sel(x0, s(z0)), x2)) -> c7(A__SEL(a__sel(mark(x0), s(mark(z0))), mark(x2)), MARK(sel(x0, s(z0))))
   MARK(sel(sel(x0, 0), x2)) -> c7(A__SEL(a__sel(mark(x0), 0), mark(x2)), MARK(sel(x0, 0)))
   MARK(sel(sel(from(z0), x1), x2)) -> c7(A__SEL(a__sel(a__from(mark(z0)), mark(x1)), mark(x2)), MARK(sel(from(z0), x1)))
   MARK(sel(sel(sel(z0, z1), x1), x2)) -> c7(A__SEL(a__sel(a__sel(mark(z0), mark(z1)), mark(x1)), mark(x2)), MARK(sel(sel(z0, z1), x1)))
   MARK(sel(sel(cons(z0, z1), x1), x2)) -> c7(A__SEL(a__sel(cons(mark(z0), z1), mark(x1)), mark(x2)), MARK(sel(cons(z0, z1), x1)))
   MARK(sel(sel(s(z0), x1), x2)) -> c7(A__SEL(a__sel(s(mark(z0)), mark(x1)), mark(x2)), MARK(sel(s(z0), x1)))
   MARK(sel(sel(0, x1), x2)) -> c7(A__SEL(a__sel(0, mark(x1)), mark(x2)), MARK(sel(0, x1)))
   MARK(sel(sel(x0, x1), s(z0))) -> c7(MARK(sel(x0, x1)))
   MARK(sel(sel(x0, x1), 0)) -> c7(MARK(sel(x0, x1)))
   MARK(sel(sel(x0, x1), x2)) -> c7(MARK(sel(x0, x1)))
   MARK(sel(s(from(z0)), x1)) -> c7(A__SEL(s(a__from(mark(z0))), mark(x1)), MARK(s(from(z0))))
   MARK(sel(s(sel(z0, z1)), x1)) -> c7(A__SEL(s(a__sel(mark(z0), mark(z1))), mark(x1)), MARK(s(sel(z0, z1))))
   MARK(sel(s(cons(z0, z1)), x1)) -> c7(A__SEL(s(cons(mark(z0), z1)), mark(x1)), MARK(s(cons(z0, z1))))
   MARK(sel(s(s(z0)), x1)) -> c7(A__SEL(s(s(mark(z0))), mark(x1)), MARK(s(s(z0))))
   MARK(sel(s(0), x1)) -> c7(A__SEL(s(0), mark(x1)), MARK(s(0)))
   MARK(sel(s(x0), x1)) -> c7(MARK(s(x0)))
   MARK(sel(s(x0), s(z0))) -> c7(MARK(s(x0)))
   MARK(sel(s(x0), 0)) -> c7(MARK(s(x0)))
   MARK(sel(x0, from(x1))) -> c8(A__SEL(mark(x0), cons(mark(mark(x1)), from(s(mark(x1))))), MARK(from(x1)))
   MARK(sel(x0, from(from(z0)))) -> c8(A__SEL(mark(x0), a__from(a__from(mark(z0)))), MARK(from(from(z0))))
   MARK(sel(x0, from(sel(z0, z1)))) -> c8(A__SEL(mark(x0), a__from(a__sel(mark(z0), mark(z1)))), MARK(from(sel(z0, z1))))
   MARK(sel(x0, from(cons(z0, z1)))) -> c8(A__SEL(mark(x0), a__from(cons(mark(z0), z1))), MARK(from(cons(z0, z1))))
   MARK(sel(x0, from(s(z0)))) -> c8(A__SEL(mark(x0), a__from(s(mark(z0)))), MARK(from(s(z0))))
   MARK(sel(x0, from(0))) -> c8(A__SEL(mark(x0), a__from(0)), MARK(from(0)))
   MARK(sel(from(z0), from(x1))) -> c8(A__SEL(a__from(mark(z0)), a__from(mark(x1))), MARK(from(x1)))
   MARK(sel(sel(z0, z1), from(x1))) -> c8(A__SEL(a__sel(mark(z0), mark(z1)), a__from(mark(x1))), MARK(from(x1)))
   MARK(sel(s(z0), from(x1))) -> c8(A__SEL(s(mark(z0)), a__from(mark(x1))), MARK(from(x1)))
   MARK(sel(0, from(x1))) -> c8(A__SEL(0, a__from(mark(x1))), MARK(from(x1)))
   MARK(sel(x0, from(x1))) -> c8(MARK(from(x1)))
   MARK(sel(cons(z0, z1), from(x1))) -> c8(MARK(from(x1)))
   MARK(sel(x0, sel(x1, from(z0)))) -> c8(A__SEL(mark(x0), a__sel(mark(x1), a__from(mark(z0)))), MARK(sel(x1, from(z0))))
   MARK(sel(x0, sel(x1, sel(z0, z1)))) -> c8(A__SEL(mark(x0), a__sel(mark(x1), a__sel(mark(z0), mark(z1)))), MARK(sel(x1, sel(z0, z1))))
   MARK(sel(x0, sel(x1, cons(z0, z1)))) -> c8(A__SEL(mark(x0), a__sel(mark(x1), cons(mark(z0), z1))), MARK(sel(x1, cons(z0, z1))))
   MARK(sel(x0, sel(x1, s(z0)))) -> c8(A__SEL(mark(x0), a__sel(mark(x1), s(mark(z0)))), MARK(sel(x1, s(z0))))
   MARK(sel(x0, sel(x1, 0))) -> c8(A__SEL(mark(x0), a__sel(mark(x1), 0)), MARK(sel(x1, 0)))
   MARK(sel(x0, sel(from(z0), x2))) -> c8(A__SEL(mark(x0), a__sel(a__from(mark(z0)), mark(x2))), MARK(sel(from(z0), x2)))
   MARK(sel(x0, sel(sel(z0, z1), x2))) -> c8(A__SEL(mark(x0), a__sel(a__sel(mark(z0), mark(z1)), mark(x2))), MARK(sel(sel(z0, z1), x2)))
   MARK(sel(x0, sel(cons(z0, z1), x2))) -> c8(A__SEL(mark(x0), a__sel(cons(mark(z0), z1), mark(x2))), MARK(sel(cons(z0, z1), x2)))
   MARK(sel(x0, sel(s(z0), x2))) -> c8(A__SEL(mark(x0), a__sel(s(mark(z0)), mark(x2))), MARK(sel(s(z0), x2)))
   MARK(sel(x0, sel(0, x2))) -> c8(A__SEL(mark(x0), a__sel(0, mark(x2))), MARK(sel(0, x2)))
   MARK(sel(from(z0), sel(x1, x2))) -> c8(A__SEL(a__from(mark(z0)), a__sel(mark(x1), mark(x2))), MARK(sel(x1, x2)))
   MARK(sel(sel(z0, z1), sel(x1, x2))) -> c8(A__SEL(a__sel(mark(z0), mark(z1)), a__sel(mark(x1), mark(x2))), MARK(sel(x1, x2)))
   MARK(sel(s(z0), sel(x1, x2))) -> c8(A__SEL(s(mark(z0)), a__sel(mark(x1), mark(x2))), MARK(sel(x1, x2)))
   MARK(sel(0, sel(x1, x2))) -> c8(A__SEL(0, a__sel(mark(x1), mark(x2))), MARK(sel(x1, x2)))
   MARK(sel(x0, sel(x1, x2))) -> c8(MARK(sel(x1, x2)))
   MARK(sel(cons(z0, z1), sel(x1, x2))) -> c8(MARK(sel(x1, x2)))
   MARK(sel(x0, cons(from(z0), x2))) -> c8(A__SEL(mark(x0), cons(a__from(mark(z0)), x2)), MARK(cons(from(z0), x2)))
   MARK(sel(x0, cons(sel(z0, z1), x2))) -> c8(A__SEL(mark(x0), cons(a__sel(mark(z0), mark(z1)), x2)), MARK(cons(sel(z0, z1), x2)))
   MARK(sel(x0, cons(cons(z0, z1), x2))) -> c8(A__SEL(mark(x0), cons(cons(mark(z0), z1), x2)), MARK(cons(cons(z0, z1), x2)))
   MARK(sel(x0, cons(s(z0), x2))) -> c8(A__SEL(mark(x0), cons(s(mark(z0)), x2)), MARK(cons(s(z0), x2)))
   MARK(sel(x0, cons(0, x2))) -> c8(A__SEL(mark(x0), cons(0, x2)), MARK(cons(0, x2)))
   MARK(sel(from(z0), cons(x1, x2))) -> c8(A__SEL(a__from(mark(z0)), cons(mark(x1), x2)), MARK(cons(x1, x2)))
   MARK(sel(sel(z0, z1), cons(x1, x2))) -> c8(A__SEL(a__sel(mark(z0), mark(z1)), cons(mark(x1), x2)), MARK(cons(x1, x2)))
   MARK(sel(s(z0), cons(x1, x2))) -> c8(A__SEL(s(mark(z0)), cons(mark(x1), x2)), MARK(cons(x1, x2)))
   MARK(sel(0, cons(x1, x2))) -> c8(A__SEL(0, cons(mark(x1), x2)), MARK(cons(x1, x2)))
   MARK(sel(x0, cons(x1, x2))) -> c8(MARK(cons(x1, x2)))
   MARK(sel(cons(z0, z1), cons(x1, x2))) -> c8(MARK(cons(x1, x2)))
   MARK(sel(from(from(z0)), x1)) -> c8(A__SEL(a__from(a__from(mark(z0))), mark(x1)), MARK(x1))
   MARK(sel(from(sel(z0, z1)), x1)) -> c8(A__SEL(a__from(a__sel(mark(z0), mark(z1))), mark(x1)), MARK(x1))
   MARK(sel(from(cons(z0, z1)), x1)) -> c8(A__SEL(a__from(cons(mark(z0), z1)), mark(x1)), MARK(x1))
   MARK(sel(from(s(z0)), x1)) -> c8(A__SEL(a__from(s(mark(z0))), mark(x1)), MARK(x1))
   MARK(sel(from(0), x1)) -> c8(A__SEL(a__from(0), mark(x1)), MARK(x1))
   MARK(sel(from(x0), s(z0))) -> c8(MARK(s(z0)))
   MARK(sel(from(x0), x1)) -> c8(MARK(x1))
   MARK(sel(sel(x0, from(z0)), x2)) -> c8(A__SEL(a__sel(mark(x0), a__from(mark(z0))), mark(x2)), MARK(x2))
   MARK(sel(sel(x0, sel(z0, z1)), x2)) -> c8(A__SEL(a__sel(mark(x0), a__sel(mark(z0), mark(z1))), mark(x2)), MARK(x2))
   MARK(sel(sel(x0, cons(z0, z1)), x2)) -> c8(A__SEL(a__sel(mark(x0), cons(mark(z0), z1)), mark(x2)), MARK(x2))
   MARK(sel(sel(x0, s(z0)), x2)) -> c8(A__SEL(a__sel(mark(x0), s(mark(z0))), mark(x2)), MARK(x2))
   MARK(sel(sel(x0, 0), x2)) -> c8(A__SEL(a__sel(mark(x0), 0), mark(x2)), MARK(x2))
   MARK(sel(sel(from(z0), x1), x2)) -> c8(A__SEL(a__sel(a__from(mark(z0)), mark(x1)), mark(x2)), MARK(x2))
   MARK(sel(sel(sel(z0, z1), x1), x2)) -> c8(A__SEL(a__sel(a__sel(mark(z0), mark(z1)), mark(x1)), mark(x2)), MARK(x2))
   MARK(sel(sel(cons(z0, z1), x1), x2)) -> c8(A__SEL(a__sel(cons(mark(z0), z1), mark(x1)), mark(x2)), MARK(x2))
   MARK(sel(sel(s(z0), x1), x2)) -> c8(A__SEL(a__sel(s(mark(z0)), mark(x1)), mark(x2)), MARK(x2))
   MARK(sel(sel(0, x1), x2)) -> c8(A__SEL(a__sel(0, mark(x1)), mark(x2)), MARK(x2))
   MARK(sel(sel(x0, x1), s(z0))) -> c8(MARK(s(z0)))
   MARK(sel(sel(x0, x1), x2)) -> c8(MARK(x2))
   MARK(sel(s(from(z0)), x1)) -> c8(A__SEL(s(a__from(mark(z0))), mark(x1)), MARK(x1))
   MARK(sel(s(sel(z0, z1)), x1)) -> c8(A__SEL(s(a__sel(mark(z0), mark(z1))), mark(x1)), MARK(x1))
   MARK(sel(s(cons(z0, z1)), x1)) -> c8(A__SEL(s(cons(mark(z0), z1)), mark(x1)), MARK(x1))
   MARK(sel(s(s(z0)), x1)) -> c8(A__SEL(s(s(mark(z0))), mark(x1)), MARK(x1))
   MARK(sel(s(0), x1)) -> c8(A__SEL(s(0), mark(x1)), MARK(x1))
   MARK(sel(s(x0), s(z0))) -> c8(MARK(s(z0)))
   MARK(sel(0, s(z0))) -> c8(A__SEL(0, s(mark(z0))), MARK(s(z0)))
   MARK(sel(0, 0)) -> c8(A__SEL(0, 0), MARK(0))
S tuples:
   A__FROM(z0) -> c(MARK(z0))
   A__SEL(0, cons(z0, z1)) -> c2(MARK(z0))
   MARK(from(z0)) -> c6(A__FROM(mark(z0)), MARK(z0))
   MARK(cons(z0, z1)) -> c9(MARK(z0))
   MARK(s(z0)) -> c10(MARK(z0))
   A__SEL(s(x0), cons(x1, s(z0))) -> c3(MARK(x0))
   A__SEL(s(x0), cons(x1, 0)) -> c3(MARK(x0))
   A__SEL(s(cons(z0, z1)), cons(x1, x2)) -> c3(MARK(cons(z0, z1)))
   A__SEL(s(x0), cons(x1, s(z0))) -> c4(MARK(s(z0)))
   A__SEL(s(cons(z0, z1)), cons(x1, x2)) -> c4(MARK(x2))
   MARK(sel(x0, s(z0))) -> c7(MARK(x0))
   MARK(sel(x0, 0)) -> c7(MARK(x0))
   MARK(sel(cons(z0, z1), x1)) -> c7(MARK(cons(z0, z1)))
   MARK(sel(x0, s(z0))) -> c8(MARK(s(z0)))
   MARK(sel(cons(z0, z1), x1)) -> c8(MARK(x1))
   A__SEL(s(x0), cons(x1, from(x2))) -> c3(A__SEL(mark(x0), cons(mark(mark(x2)), from(s(mark(x2))))), MARK(x0))
   A__SEL(s(x0), cons(x1, from(from(z0)))) -> c3(A__SEL(mark(x0), a__from(a__from(mark(z0)))), MARK(x0))
   A__SEL(s(x0), cons(x1, from(sel(z0, z1)))) -> c3(A__SEL(mark(x0), a__from(a__sel(mark(z0), mark(z1)))), MARK(x0))
   A__SEL(s(x0), cons(x1, from(cons(z0, z1)))) -> c3(A__SEL(mark(x0), a__from(cons(mark(z0), z1))), MARK(x0))
   A__SEL(s(x0), cons(x1, from(s(z0)))) -> c3(A__SEL(mark(x0), a__from(s(mark(z0)))), MARK(x0))
   A__SEL(s(x0), cons(x1, from(0))) -> c3(A__SEL(mark(x0), a__from(0)), MARK(x0))
   A__SEL(s(from(z0)), cons(x1, from(x2))) -> c3(A__SEL(a__from(mark(z0)), a__from(mark(x2))), MARK(from(z0)))
   A__SEL(s(sel(z0, z1)), cons(x1, from(x2))) -> c3(A__SEL(a__sel(mark(z0), mark(z1)), a__from(mark(x2))), MARK(sel(z0, z1)))
   A__SEL(s(s(z0)), cons(x1, from(x2))) -> c3(A__SEL(s(mark(z0)), a__from(mark(x2))), MARK(s(z0)))
   A__SEL(s(x0), cons(x1, from(x2))) -> c3(MARK(x0))
   A__SEL(s(cons(z0, z1)), cons(x1, from(x2))) -> c3(MARK(cons(z0, z1)))
   A__SEL(s(0), cons(x1, from(x2))) -> c3(A__SEL(0, a__from(mark(x2))))
   A__SEL(s(x0), cons(x1, sel(x2, from(z0)))) -> c3(A__SEL(mark(x0), a__sel(mark(x2), a__from(mark(z0)))), MARK(x0))
   A__SEL(s(x0), cons(x1, sel(x2, sel(z0, z1)))) -> c3(A__SEL(mark(x0), a__sel(mark(x2), a__sel(mark(z0), mark(z1)))), MARK(x0))
   A__SEL(s(x0), cons(x1, sel(x2, cons(z0, z1)))) -> c3(A__SEL(mark(x0), a__sel(mark(x2), cons(mark(z0), z1))), MARK(x0))
   A__SEL(s(x0), cons(x1, sel(x2, s(z0)))) -> c3(A__SEL(mark(x0), a__sel(mark(x2), s(mark(z0)))), MARK(x0))
   A__SEL(s(x0), cons(x1, sel(x2, 0))) -> c3(A__SEL(mark(x0), a__sel(mark(x2), 0)), MARK(x0))
   A__SEL(s(x0), cons(x1, sel(from(z0), x3))) -> c3(A__SEL(mark(x0), a__sel(a__from(mark(z0)), mark(x3))), MARK(x0))
   A__SEL(s(x0), cons(x1, sel(sel(z0, z1), x3))) -> c3(A__SEL(mark(x0), a__sel(a__sel(mark(z0), mark(z1)), mark(x3))), MARK(x0))
   A__SEL(s(x0), cons(x1, sel(cons(z0, z1), x3))) -> c3(A__SEL(mark(x0), a__sel(cons(mark(z0), z1), mark(x3))), MARK(x0))
   A__SEL(s(x0), cons(x1, sel(s(z0), x3))) -> c3(A__SEL(mark(x0), a__sel(s(mark(z0)), mark(x3))), MARK(x0))
   A__SEL(s(x0), cons(x1, sel(0, x3))) -> c3(A__SEL(mark(x0), a__sel(0, mark(x3))), MARK(x0))
   A__SEL(s(from(z0)), cons(x1, sel(x2, x3))) -> c3(A__SEL(a__from(mark(z0)), a__sel(mark(x2), mark(x3))), MARK(from(z0)))
   A__SEL(s(sel(z0, z1)), cons(x1, sel(x2, x3))) -> c3(A__SEL(a__sel(mark(z0), mark(z1)), a__sel(mark(x2), mark(x3))), MARK(sel(z0, z1)))
   A__SEL(s(s(z0)), cons(x1, sel(x2, x3))) -> c3(A__SEL(s(mark(z0)), a__sel(mark(x2), mark(x3))), MARK(s(z0)))
   A__SEL(s(x0), cons(x1, sel(x2, x3))) -> c3(MARK(x0))
   A__SEL(s(cons(z0, z1)), cons(x1, sel(x2, x3))) -> c3(MARK(cons(z0, z1)))
   A__SEL(s(0), cons(x1, sel(x2, x3))) -> c3(A__SEL(0, a__sel(mark(x2), mark(x3))))
   A__SEL(s(x0), cons(x1, cons(from(z0), x3))) -> c3(A__SEL(mark(x0), cons(a__from(mark(z0)), x3)), MARK(x0))
   A__SEL(s(x0), cons(x1, cons(sel(z0, z1), x3))) -> c3(A__SEL(mark(x0), cons(a__sel(mark(z0), mark(z1)), x3)), MARK(x0))
   A__SEL(s(x0), cons(x1, cons(cons(z0, z1), x3))) -> c3(A__SEL(mark(x0), cons(cons(mark(z0), z1), x3)), MARK(x0))
   A__SEL(s(x0), cons(x1, cons(s(z0), x3))) -> c3(A__SEL(mark(x0), cons(s(mark(z0)), x3)), MARK(x0))
   A__SEL(s(x0), cons(x1, cons(0, x3))) -> c3(A__SEL(mark(x0), cons(0, x3)), MARK(x0))
   A__SEL(s(from(z0)), cons(x1, cons(x2, x3))) -> c3(A__SEL(a__from(mark(z0)), cons(mark(x2), x3)), MARK(from(z0)))
   A__SEL(s(sel(z0, z1)), cons(x1, cons(x2, x3))) -> c3(A__SEL(a__sel(mark(z0), mark(z1)), cons(mark(x2), x3)), MARK(sel(z0, z1)))
   A__SEL(s(s(z0)), cons(x1, cons(x2, x3))) -> c3(A__SEL(s(mark(z0)), cons(mark(x2), x3)), MARK(s(z0)))
   A__SEL(s(cons(z0, z1)), cons(x1, cons(x2, x3))) -> c3(MARK(cons(z0, z1)))
   A__SEL(s(0), cons(x1, cons(x2, x3))) -> c3(A__SEL(0, cons(mark(x2), x3)))
   A__SEL(s(from(from(z0))), cons(x1, x2)) -> c3(A__SEL(a__from(a__from(mark(z0))), mark(x2)), MARK(from(from(z0))))
   A__SEL(s(from(sel(z0, z1))), cons(x1, x2)) -> c3(A__SEL(a__from(a__sel(mark(z0), mark(z1))), mark(x2)), MARK(from(sel(z0, z1))))
   A__SEL(s(from(cons(z0, z1))), cons(x1, x2)) -> c3(A__SEL(a__from(cons(mark(z0), z1)), mark(x2)), MARK(from(cons(z0, z1))))
   A__SEL(s(from(s(z0))), cons(x1, x2)) -> c3(A__SEL(a__from(s(mark(z0))), mark(x2)), MARK(from(s(z0))))
   A__SEL(s(from(0)), cons(x1, x2)) -> c3(A__SEL(a__from(0), mark(x2)), MARK(from(0)))
   A__SEL(s(from(x0)), cons(x1, x2)) -> c3(MARK(from(x0)))
   A__SEL(s(from(x0)), cons(x1, s(z0))) -> c3(MARK(from(x0)))
   A__SEL(s(from(x0)), cons(x1, 0)) -> c3(MARK(from(x0)))
   A__SEL(s(sel(x0, from(z0))), cons(x2, x3)) -> c3(A__SEL(a__sel(mark(x0), a__from(mark(z0))), mark(x3)), MARK(sel(x0, from(z0))))
   A__SEL(s(sel(x0, sel(z0, z1))), cons(x2, x3)) -> c3(A__SEL(a__sel(mark(x0), a__sel(mark(z0), mark(z1))), mark(x3)), MARK(sel(x0, sel(z0, z1))))
   A__SEL(s(sel(x0, cons(z0, z1))), cons(x2, x3)) -> c3(A__SEL(a__sel(mark(x0), cons(mark(z0), z1)), mark(x3)), MARK(sel(x0, cons(z0, z1))))
   A__SEL(s(sel(x0, s(z0))), cons(x2, x3)) -> c3(A__SEL(a__sel(mark(x0), s(mark(z0))), mark(x3)), MARK(sel(x0, s(z0))))
   A__SEL(s(sel(x0, 0)), cons(x2, x3)) -> c3(A__SEL(a__sel(mark(x0), 0), mark(x3)), MARK(sel(x0, 0)))
   A__SEL(s(sel(from(z0), x1)), cons(x2, x3)) -> c3(A__SEL(a__sel(a__from(mark(z0)), mark(x1)), mark(x3)), MARK(sel(from(z0), x1)))
   A__SEL(s(sel(sel(z0, z1), x1)), cons(x2, x3)) -> c3(A__SEL(a__sel(a__sel(mark(z0), mark(z1)), mark(x1)), mark(x3)), MARK(sel(sel(z0, z1), x1)))
   A__SEL(s(sel(cons(z0, z1), x1)), cons(x2, x3)) -> c3(A__SEL(a__sel(cons(mark(z0), z1), mark(x1)), mark(x3)), MARK(sel(cons(z0, z1), x1)))
   A__SEL(s(sel(s(z0), x1)), cons(x2, x3)) -> c3(A__SEL(a__sel(s(mark(z0)), mark(x1)), mark(x3)), MARK(sel(s(z0), x1)))
   A__SEL(s(sel(0, x1)), cons(x2, x3)) -> c3(A__SEL(a__sel(0, mark(x1)), mark(x3)), MARK(sel(0, x1)))
   A__SEL(s(sel(x0, x1)), cons(x2, s(z0))) -> c3(MARK(sel(x0, x1)))
   A__SEL(s(sel(x0, x1)), cons(x2, 0)) -> c3(MARK(sel(x0, x1)))
   A__SEL(s(sel(x0, x1)), cons(x2, x3)) -> c3(MARK(sel(x0, x1)))
   A__SEL(s(s(from(z0))), cons(x1, x2)) -> c3(A__SEL(s(a__from(mark(z0))), mark(x2)), MARK(s(from(z0))))
   A__SEL(s(s(sel(z0, z1))), cons(x1, x2)) -> c3(A__SEL(s(a__sel(mark(z0), mark(z1))), mark(x2)), MARK(s(sel(z0, z1))))
   A__SEL(s(s(cons(z0, z1))), cons(x1, x2)) -> c3(A__SEL(s(cons(mark(z0), z1)), mark(x2)), MARK(s(cons(z0, z1))))
   A__SEL(s(s(s(z0))), cons(x1, x2)) -> c3(A__SEL(s(s(mark(z0))), mark(x2)), MARK(s(s(z0))))
   A__SEL(s(s(0)), cons(x1, x2)) -> c3(A__SEL(s(0), mark(x2)), MARK(s(0)))
   A__SEL(s(s(x0)), cons(x1, x2)) -> c3(MARK(s(x0)))
   A__SEL(s(s(x0)), cons(x1, s(z0))) -> c3(MARK(s(x0)))
   A__SEL(s(s(x0)), cons(x1, 0)) -> c3(MARK(s(x0)))
   A__SEL(s(x0), cons(x1, from(x2))) -> c4(A__SEL(mark(x0), cons(mark(mark(x2)), from(s(mark(x2))))), MARK(from(x2)))
   A__SEL(s(x0), cons(x1, from(from(z0)))) -> c4(A__SEL(mark(x0), a__from(a__from(mark(z0)))), MARK(from(from(z0))))
   A__SEL(s(x0), cons(x1, from(sel(z0, z1)))) -> c4(A__SEL(mark(x0), a__from(a__sel(mark(z0), mark(z1)))), MARK(from(sel(z0, z1))))
   A__SEL(s(x0), cons(x1, from(cons(z0, z1)))) -> c4(A__SEL(mark(x0), a__from(cons(mark(z0), z1))), MARK(from(cons(z0, z1))))
   A__SEL(s(x0), cons(x1, from(s(z0)))) -> c4(A__SEL(mark(x0), a__from(s(mark(z0)))), MARK(from(s(z0))))
   A__SEL(s(x0), cons(x1, from(0))) -> c4(A__SEL(mark(x0), a__from(0)), MARK(from(0)))
   A__SEL(s(from(z0)), cons(x1, from(x2))) -> c4(A__SEL(a__from(mark(z0)), a__from(mark(x2))), MARK(from(x2)))
   A__SEL(s(sel(z0, z1)), cons(x1, from(x2))) -> c4(A__SEL(a__sel(mark(z0), mark(z1)), a__from(mark(x2))), MARK(from(x2)))
   A__SEL(s(s(z0)), cons(x1, from(x2))) -> c4(A__SEL(s(mark(z0)), a__from(mark(x2))), MARK(from(x2)))
   A__SEL(s(0), cons(x1, from(x2))) -> c4(A__SEL(0, a__from(mark(x2))), MARK(from(x2)))
   A__SEL(s(x0), cons(x1, from(x2))) -> c4(MARK(from(x2)))
   A__SEL(s(cons(z0, z1)), cons(x1, from(x2))) -> c4(MARK(from(x2)))
   A__SEL(s(x0), cons(x1, sel(x2, from(z0)))) -> c4(A__SEL(mark(x0), a__sel(mark(x2), a__from(mark(z0)))), MARK(sel(x2, from(z0))))
   A__SEL(s(x0), cons(x1, sel(x2, sel(z0, z1)))) -> c4(A__SEL(mark(x0), a__sel(mark(x2), a__sel(mark(z0), mark(z1)))), MARK(sel(x2, sel(z0, z1))))
   A__SEL(s(x0), cons(x1, sel(x2, cons(z0, z1)))) -> c4(A__SEL(mark(x0), a__sel(mark(x2), cons(mark(z0), z1))), MARK(sel(x2, cons(z0, z1))))
   A__SEL(s(x0), cons(x1, sel(x2, s(z0)))) -> c4(A__SEL(mark(x0), a__sel(mark(x2), s(mark(z0)))), MARK(sel(x2, s(z0))))
   A__SEL(s(x0), cons(x1, sel(x2, 0))) -> c4(A__SEL(mark(x0), a__sel(mark(x2), 0)), MARK(sel(x2, 0)))
   A__SEL(s(x0), cons(x1, sel(from(z0), x3))) -> c4(A__SEL(mark(x0), a__sel(a__from(mark(z0)), mark(x3))), MARK(sel(from(z0), x3)))
   A__SEL(s(x0), cons(x1, sel(sel(z0, z1), x3))) -> c4(A__SEL(mark(x0), a__sel(a__sel(mark(z0), mark(z1)), mark(x3))), MARK(sel(sel(z0, z1), x3)))
   A__SEL(s(x0), cons(x1, sel(cons(z0, z1), x3))) -> c4(A__SEL(mark(x0), a__sel(cons(mark(z0), z1), mark(x3))), MARK(sel(cons(z0, z1), x3)))
   A__SEL(s(x0), cons(x1, sel(s(z0), x3))) -> c4(A__SEL(mark(x0), a__sel(s(mark(z0)), mark(x3))), MARK(sel(s(z0), x3)))
   A__SEL(s(x0), cons(x1, sel(0, x3))) -> c4(A__SEL(mark(x0), a__sel(0, mark(x3))), MARK(sel(0, x3)))
   A__SEL(s(from(z0)), cons(x1, sel(x2, x3))) -> c4(A__SEL(a__from(mark(z0)), a__sel(mark(x2), mark(x3))), MARK(sel(x2, x3)))
   A__SEL(s(sel(z0, z1)), cons(x1, sel(x2, x3))) -> c4(A__SEL(a__sel(mark(z0), mark(z1)), a__sel(mark(x2), mark(x3))), MARK(sel(x2, x3)))
   A__SEL(s(s(z0)), cons(x1, sel(x2, x3))) -> c4(A__SEL(s(mark(z0)), a__sel(mark(x2), mark(x3))), MARK(sel(x2, x3)))
   A__SEL(s(0), cons(x1, sel(x2, x3))) -> c4(A__SEL(0, a__sel(mark(x2), mark(x3))), MARK(sel(x2, x3)))
   A__SEL(s(x0), cons(x1, sel(x2, x3))) -> c4(MARK(sel(x2, x3)))
   A__SEL(s(cons(z0, z1)), cons(x1, sel(x2, x3))) -> c4(MARK(sel(x2, x3)))
   A__SEL(s(x0), cons(x1, cons(from(z0), x3))) -> c4(A__SEL(mark(x0), cons(a__from(mark(z0)), x3)), MARK(cons(from(z0), x3)))
   A__SEL(s(x0), cons(x1, cons(sel(z0, z1), x3))) -> c4(A__SEL(mark(x0), cons(a__sel(mark(z0), mark(z1)), x3)), MARK(cons(sel(z0, z1), x3)))
   A__SEL(s(x0), cons(x1, cons(cons(z0, z1), x3))) -> c4(A__SEL(mark(x0), cons(cons(mark(z0), z1), x3)), MARK(cons(cons(z0, z1), x3)))
   A__SEL(s(x0), cons(x1, cons(s(z0), x3))) -> c4(A__SEL(mark(x0), cons(s(mark(z0)), x3)), MARK(cons(s(z0), x3)))
   A__SEL(s(x0), cons(x1, cons(0, x3))) -> c4(A__SEL(mark(x0), cons(0, x3)), MARK(cons(0, x3)))
   A__SEL(s(from(z0)), cons(x1, cons(x2, x3))) -> c4(A__SEL(a__from(mark(z0)), cons(mark(x2), x3)), MARK(cons(x2, x3)))
   A__SEL(s(sel(z0, z1)), cons(x1, cons(x2, x3))) -> c4(A__SEL(a__sel(mark(z0), mark(z1)), cons(mark(x2), x3)), MARK(cons(x2, x3)))
   A__SEL(s(s(z0)), cons(x1, cons(x2, x3))) -> c4(A__SEL(s(mark(z0)), cons(mark(x2), x3)), MARK(cons(x2, x3)))
   A__SEL(s(0), cons(x1, cons(x2, x3))) -> c4(A__SEL(0, cons(mark(x2), x3)), MARK(cons(x2, x3)))
   A__SEL(s(x0), cons(x1, cons(x2, x3))) -> c4(MARK(cons(x2, x3)))
   A__SEL(s(cons(z0, z1)), cons(x1, cons(x2, x3))) -> c4(MARK(cons(x2, x3)))
   A__SEL(s(from(from(z0))), cons(x1, x2)) -> c4(A__SEL(a__from(a__from(mark(z0))), mark(x2)), MARK(x2))
   A__SEL(s(from(sel(z0, z1))), cons(x1, x2)) -> c4(A__SEL(a__from(a__sel(mark(z0), mark(z1))), mark(x2)), MARK(x2))
   A__SEL(s(from(cons(z0, z1))), cons(x1, x2)) -> c4(A__SEL(a__from(cons(mark(z0), z1)), mark(x2)), MARK(x2))
   A__SEL(s(from(s(z0))), cons(x1, x2)) -> c4(A__SEL(a__from(s(mark(z0))), mark(x2)), MARK(x2))
   A__SEL(s(from(0)), cons(x1, x2)) -> c4(A__SEL(a__from(0), mark(x2)), MARK(x2))
   A__SEL(s(from(x0)), cons(x1, s(z0))) -> c4(MARK(s(z0)))
   A__SEL(s(from(x0)), cons(x1, x2)) -> c4(MARK(x2))
   A__SEL(s(sel(x0, from(z0))), cons(x2, x3)) -> c4(A__SEL(a__sel(mark(x0), a__from(mark(z0))), mark(x3)), MARK(x3))
   A__SEL(s(sel(x0, sel(z0, z1))), cons(x2, x3)) -> c4(A__SEL(a__sel(mark(x0), a__sel(mark(z0), mark(z1))), mark(x3)), MARK(x3))
   A__SEL(s(sel(x0, cons(z0, z1))), cons(x2, x3)) -> c4(A__SEL(a__sel(mark(x0), cons(mark(z0), z1)), mark(x3)), MARK(x3))
   A__SEL(s(sel(x0, s(z0))), cons(x2, x3)) -> c4(A__SEL(a__sel(mark(x0), s(mark(z0))), mark(x3)), MARK(x3))
   A__SEL(s(sel(x0, 0)), cons(x2, x3)) -> c4(A__SEL(a__sel(mark(x0), 0), mark(x3)), MARK(x3))
   A__SEL(s(sel(from(z0), x1)), cons(x2, x3)) -> c4(A__SEL(a__sel(a__from(mark(z0)), mark(x1)), mark(x3)), MARK(x3))
   A__SEL(s(sel(sel(z0, z1), x1)), cons(x2, x3)) -> c4(A__SEL(a__sel(a__sel(mark(z0), mark(z1)), mark(x1)), mark(x3)), MARK(x3))
   A__SEL(s(sel(cons(z0, z1), x1)), cons(x2, x3)) -> c4(A__SEL(a__sel(cons(mark(z0), z1), mark(x1)), mark(x3)), MARK(x3))
   A__SEL(s(sel(s(z0), x1)), cons(x2, x3)) -> c4(A__SEL(a__sel(s(mark(z0)), mark(x1)), mark(x3)), MARK(x3))
   A__SEL(s(sel(0, x1)), cons(x2, x3)) -> c4(A__SEL(a__sel(0, mark(x1)), mark(x3)), MARK(x3))
   A__SEL(s(sel(x0, x1)), cons(x2, s(z0))) -> c4(MARK(s(z0)))
   A__SEL(s(sel(x0, x1)), cons(x2, x3)) -> c4(MARK(x3))
   A__SEL(s(s(from(z0))), cons(x1, x2)) -> c4(A__SEL(s(a__from(mark(z0))), mark(x2)), MARK(x2))
   A__SEL(s(s(sel(z0, z1))), cons(x1, x2)) -> c4(A__SEL(s(a__sel(mark(z0), mark(z1))), mark(x2)), MARK(x2))
   A__SEL(s(s(cons(z0, z1))), cons(x1, x2)) -> c4(A__SEL(s(cons(mark(z0), z1)), mark(x2)), MARK(x2))
   A__SEL(s(s(s(z0))), cons(x1, x2)) -> c4(A__SEL(s(s(mark(z0))), mark(x2)), MARK(x2))
   A__SEL(s(s(0)), cons(x1, x2)) -> c4(A__SEL(s(0), mark(x2)), MARK(x2))
   A__SEL(s(s(x0)), cons(x1, s(z0))) -> c4(MARK(s(z0)))
   A__SEL(s(0), cons(x0, s(z0))) -> c4(MARK(s(z0)))
   MARK(sel(x0, from(x1))) -> c7(A__SEL(mark(x0), cons(mark(mark(x1)), from(s(mark(x1))))), MARK(x0))
   MARK(sel(x0, from(from(z0)))) -> c7(A__SEL(mark(x0), a__from(a__from(mark(z0)))), MARK(x0))
   MARK(sel(x0, from(sel(z0, z1)))) -> c7(A__SEL(mark(x0), a__from(a__sel(mark(z0), mark(z1)))), MARK(x0))
   MARK(sel(x0, from(cons(z0, z1)))) -> c7(A__SEL(mark(x0), a__from(cons(mark(z0), z1))), MARK(x0))
   MARK(sel(x0, from(s(z0)))) -> c7(A__SEL(mark(x0), a__from(s(mark(z0)))), MARK(x0))
   MARK(sel(x0, from(0))) -> c7(A__SEL(mark(x0), a__from(0)), MARK(x0))
   MARK(sel(from(z0), from(x1))) -> c7(A__SEL(a__from(mark(z0)), a__from(mark(x1))), MARK(from(z0)))
   MARK(sel(sel(z0, z1), from(x1))) -> c7(A__SEL(a__sel(mark(z0), mark(z1)), a__from(mark(x1))), MARK(sel(z0, z1)))
   MARK(sel(s(z0), from(x1))) -> c7(A__SEL(s(mark(z0)), a__from(mark(x1))), MARK(s(z0)))
   MARK(sel(x0, from(x1))) -> c7(MARK(x0))
   MARK(sel(cons(z0, z1), from(x1))) -> c7(MARK(cons(z0, z1)))
   MARK(sel(0, from(x1))) -> c7(A__SEL(0, a__from(mark(x1))))
   MARK(sel(x0, sel(x1, from(z0)))) -> c7(A__SEL(mark(x0), a__sel(mark(x1), a__from(mark(z0)))), MARK(x0))
   MARK(sel(x0, sel(x1, sel(z0, z1)))) -> c7(A__SEL(mark(x0), a__sel(mark(x1), a__sel(mark(z0), mark(z1)))), MARK(x0))
   MARK(sel(x0, sel(x1, cons(z0, z1)))) -> c7(A__SEL(mark(x0), a__sel(mark(x1), cons(mark(z0), z1))), MARK(x0))
   MARK(sel(x0, sel(x1, s(z0)))) -> c7(A__SEL(mark(x0), a__sel(mark(x1), s(mark(z0)))), MARK(x0))
   MARK(sel(x0, sel(x1, 0))) -> c7(A__SEL(mark(x0), a__sel(mark(x1), 0)), MARK(x0))
   MARK(sel(x0, sel(from(z0), x2))) -> c7(A__SEL(mark(x0), a__sel(a__from(mark(z0)), mark(x2))), MARK(x0))
   MARK(sel(x0, sel(sel(z0, z1), x2))) -> c7(A__SEL(mark(x0), a__sel(a__sel(mark(z0), mark(z1)), mark(x2))), MARK(x0))
   MARK(sel(x0, sel(cons(z0, z1), x2))) -> c7(A__SEL(mark(x0), a__sel(cons(mark(z0), z1), mark(x2))), MARK(x0))
   MARK(sel(x0, sel(s(z0), x2))) -> c7(A__SEL(mark(x0), a__sel(s(mark(z0)), mark(x2))), MARK(x0))
   MARK(sel(x0, sel(0, x2))) -> c7(A__SEL(mark(x0), a__sel(0, mark(x2))), MARK(x0))
   MARK(sel(from(z0), sel(x1, x2))) -> c7(A__SEL(a__from(mark(z0)), a__sel(mark(x1), mark(x2))), MARK(from(z0)))
   MARK(sel(sel(z0, z1), sel(x1, x2))) -> c7(A__SEL(a__sel(mark(z0), mark(z1)), a__sel(mark(x1), mark(x2))), MARK(sel(z0, z1)))
   MARK(sel(s(z0), sel(x1, x2))) -> c7(A__SEL(s(mark(z0)), a__sel(mark(x1), mark(x2))), MARK(s(z0)))
   MARK(sel(x0, sel(x1, x2))) -> c7(MARK(x0))
   MARK(sel(cons(z0, z1), sel(x1, x2))) -> c7(MARK(cons(z0, z1)))
   MARK(sel(0, sel(x1, x2))) -> c7(A__SEL(0, a__sel(mark(x1), mark(x2))))
   MARK(sel(x0, cons(from(z0), x2))) -> c7(A__SEL(mark(x0), cons(a__from(mark(z0)), x2)), MARK(x0))
   MARK(sel(x0, cons(sel(z0, z1), x2))) -> c7(A__SEL(mark(x0), cons(a__sel(mark(z0), mark(z1)), x2)), MARK(x0))
   MARK(sel(x0, cons(cons(z0, z1), x2))) -> c7(A__SEL(mark(x0), cons(cons(mark(z0), z1), x2)), MARK(x0))
   MARK(sel(x0, cons(s(z0), x2))) -> c7(A__SEL(mark(x0), cons(s(mark(z0)), x2)), MARK(x0))
   MARK(sel(x0, cons(0, x2))) -> c7(A__SEL(mark(x0), cons(0, x2)), MARK(x0))
   MARK(sel(from(z0), cons(x1, x2))) -> c7(A__SEL(a__from(mark(z0)), cons(mark(x1), x2)), MARK(from(z0)))
   MARK(sel(sel(z0, z1), cons(x1, x2))) -> c7(A__SEL(a__sel(mark(z0), mark(z1)), cons(mark(x1), x2)), MARK(sel(z0, z1)))
   MARK(sel(s(z0), cons(x1, x2))) -> c7(A__SEL(s(mark(z0)), cons(mark(x1), x2)), MARK(s(z0)))
   MARK(sel(cons(z0, z1), cons(x1, x2))) -> c7(MARK(cons(z0, z1)))
   MARK(sel(0, cons(x1, x2))) -> c7(A__SEL(0, cons(mark(x1), x2)))
   MARK(sel(from(from(z0)), x1)) -> c7(A__SEL(a__from(a__from(mark(z0))), mark(x1)), MARK(from(from(z0))))
   MARK(sel(from(sel(z0, z1)), x1)) -> c7(A__SEL(a__from(a__sel(mark(z0), mark(z1))), mark(x1)), MARK(from(sel(z0, z1))))
   MARK(sel(from(cons(z0, z1)), x1)) -> c7(A__SEL(a__from(cons(mark(z0), z1)), mark(x1)), MARK(from(cons(z0, z1))))
   MARK(sel(from(s(z0)), x1)) -> c7(A__SEL(a__from(s(mark(z0))), mark(x1)), MARK(from(s(z0))))
   MARK(sel(from(0), x1)) -> c7(A__SEL(a__from(0), mark(x1)), MARK(from(0)))
   MARK(sel(from(x0), x1)) -> c7(MARK(from(x0)))
   MARK(sel(from(x0), s(z0))) -> c7(MARK(from(x0)))
   MARK(sel(from(x0), 0)) -> c7(MARK(from(x0)))
   MARK(sel(sel(x0, from(z0)), x2)) -> c7(A__SEL(a__sel(mark(x0), a__from(mark(z0))), mark(x2)), MARK(sel(x0, from(z0))))
   MARK(sel(sel(x0, sel(z0, z1)), x2)) -> c7(A__SEL(a__sel(mark(x0), a__sel(mark(z0), mark(z1))), mark(x2)), MARK(sel(x0, sel(z0, z1))))
   MARK(sel(sel(x0, cons(z0, z1)), x2)) -> c7(A__SEL(a__sel(mark(x0), cons(mark(z0), z1)), mark(x2)), MARK(sel(x0, cons(z0, z1))))
   MARK(sel(sel(x0, s(z0)), x2)) -> c7(A__SEL(a__sel(mark(x0), s(mark(z0))), mark(x2)), MARK(sel(x0, s(z0))))
   MARK(sel(sel(x0, 0), x2)) -> c7(A__SEL(a__sel(mark(x0), 0), mark(x2)), MARK(sel(x0, 0)))
   MARK(sel(sel(from(z0), x1), x2)) -> c7(A__SEL(a__sel(a__from(mark(z0)), mark(x1)), mark(x2)), MARK(sel(from(z0), x1)))
   MARK(sel(sel(sel(z0, z1), x1), x2)) -> c7(A__SEL(a__sel(a__sel(mark(z0), mark(z1)), mark(x1)), mark(x2)), MARK(sel(sel(z0, z1), x1)))
   MARK(sel(sel(cons(z0, z1), x1), x2)) -> c7(A__SEL(a__sel(cons(mark(z0), z1), mark(x1)), mark(x2)), MARK(sel(cons(z0, z1), x1)))
   MARK(sel(sel(s(z0), x1), x2)) -> c7(A__SEL(a__sel(s(mark(z0)), mark(x1)), mark(x2)), MARK(sel(s(z0), x1)))
   MARK(sel(sel(0, x1), x2)) -> c7(A__SEL(a__sel(0, mark(x1)), mark(x2)), MARK(sel(0, x1)))
   MARK(sel(sel(x0, x1), s(z0))) -> c7(MARK(sel(x0, x1)))
   MARK(sel(sel(x0, x1), 0)) -> c7(MARK(sel(x0, x1)))
   MARK(sel(sel(x0, x1), x2)) -> c7(MARK(sel(x0, x1)))
   MARK(sel(s(from(z0)), x1)) -> c7(A__SEL(s(a__from(mark(z0))), mark(x1)), MARK(s(from(z0))))
   MARK(sel(s(sel(z0, z1)), x1)) -> c7(A__SEL(s(a__sel(mark(z0), mark(z1))), mark(x1)), MARK(s(sel(z0, z1))))
   MARK(sel(s(cons(z0, z1)), x1)) -> c7(A__SEL(s(cons(mark(z0), z1)), mark(x1)), MARK(s(cons(z0, z1))))
   MARK(sel(s(s(z0)), x1)) -> c7(A__SEL(s(s(mark(z0))), mark(x1)), MARK(s(s(z0))))
   MARK(sel(s(0), x1)) -> c7(A__SEL(s(0), mark(x1)), MARK(s(0)))
   MARK(sel(s(x0), x1)) -> c7(MARK(s(x0)))
   MARK(sel(s(x0), s(z0))) -> c7(MARK(s(x0)))
   MARK(sel(s(x0), 0)) -> c7(MARK(s(x0)))
   MARK(sel(x0, from(x1))) -> c8(A__SEL(mark(x0), cons(mark(mark(x1)), from(s(mark(x1))))), MARK(from(x1)))
   MARK(sel(x0, from(from(z0)))) -> c8(A__SEL(mark(x0), a__from(a__from(mark(z0)))), MARK(from(from(z0))))
   MARK(sel(x0, from(sel(z0, z1)))) -> c8(A__SEL(mark(x0), a__from(a__sel(mark(z0), mark(z1)))), MARK(from(sel(z0, z1))))
   MARK(sel(x0, from(cons(z0, z1)))) -> c8(A__SEL(mark(x0), a__from(cons(mark(z0), z1))), MARK(from(cons(z0, z1))))
   MARK(sel(x0, from(s(z0)))) -> c8(A__SEL(mark(x0), a__from(s(mark(z0)))), MARK(from(s(z0))))
   MARK(sel(x0, from(0))) -> c8(A__SEL(mark(x0), a__from(0)), MARK(from(0)))
   MARK(sel(from(z0), from(x1))) -> c8(A__SEL(a__from(mark(z0)), a__from(mark(x1))), MARK(from(x1)))
   MARK(sel(sel(z0, z1), from(x1))) -> c8(A__SEL(a__sel(mark(z0), mark(z1)), a__from(mark(x1))), MARK(from(x1)))
   MARK(sel(s(z0), from(x1))) -> c8(A__SEL(s(mark(z0)), a__from(mark(x1))), MARK(from(x1)))
   MARK(sel(0, from(x1))) -> c8(A__SEL(0, a__from(mark(x1))), MARK(from(x1)))
   MARK(sel(x0, from(x1))) -> c8(MARK(from(x1)))
   MARK(sel(cons(z0, z1), from(x1))) -> c8(MARK(from(x1)))
   MARK(sel(x0, sel(x1, from(z0)))) -> c8(A__SEL(mark(x0), a__sel(mark(x1), a__from(mark(z0)))), MARK(sel(x1, from(z0))))
   MARK(sel(x0, sel(x1, sel(z0, z1)))) -> c8(A__SEL(mark(x0), a__sel(mark(x1), a__sel(mark(z0), mark(z1)))), MARK(sel(x1, sel(z0, z1))))
   MARK(sel(x0, sel(x1, cons(z0, z1)))) -> c8(A__SEL(mark(x0), a__sel(mark(x1), cons(mark(z0), z1))), MARK(sel(x1, cons(z0, z1))))
   MARK(sel(x0, sel(x1, s(z0)))) -> c8(A__SEL(mark(x0), a__sel(mark(x1), s(mark(z0)))), MARK(sel(x1, s(z0))))
   MARK(sel(x0, sel(x1, 0))) -> c8(A__SEL(mark(x0), a__sel(mark(x1), 0)), MARK(sel(x1, 0)))
   MARK(sel(x0, sel(from(z0), x2))) -> c8(A__SEL(mark(x0), a__sel(a__from(mark(z0)), mark(x2))), MARK(sel(from(z0), x2)))
   MARK(sel(x0, sel(sel(z0, z1), x2))) -> c8(A__SEL(mark(x0), a__sel(a__sel(mark(z0), mark(z1)), mark(x2))), MARK(sel(sel(z0, z1), x2)))
   MARK(sel(x0, sel(cons(z0, z1), x2))) -> c8(A__SEL(mark(x0), a__sel(cons(mark(z0), z1), mark(x2))), MARK(sel(cons(z0, z1), x2)))
   MARK(sel(x0, sel(s(z0), x2))) -> c8(A__SEL(mark(x0), a__sel(s(mark(z0)), mark(x2))), MARK(sel(s(z0), x2)))
   MARK(sel(x0, sel(0, x2))) -> c8(A__SEL(mark(x0), a__sel(0, mark(x2))), MARK(sel(0, x2)))
   MARK(sel(from(z0), sel(x1, x2))) -> c8(A__SEL(a__from(mark(z0)), a__sel(mark(x1), mark(x2))), MARK(sel(x1, x2)))
   MARK(sel(sel(z0, z1), sel(x1, x2))) -> c8(A__SEL(a__sel(mark(z0), mark(z1)), a__sel(mark(x1), mark(x2))), MARK(sel(x1, x2)))
   MARK(sel(s(z0), sel(x1, x2))) -> c8(A__SEL(s(mark(z0)), a__sel(mark(x1), mark(x2))), MARK(sel(x1, x2)))
   MARK(sel(0, sel(x1, x2))) -> c8(A__SEL(0, a__sel(mark(x1), mark(x2))), MARK(sel(x1, x2)))
   MARK(sel(x0, sel(x1, x2))) -> c8(MARK(sel(x1, x2)))
   MARK(sel(cons(z0, z1), sel(x1, x2))) -> c8(MARK(sel(x1, x2)))
   MARK(sel(x0, cons(from(z0), x2))) -> c8(A__SEL(mark(x0), cons(a__from(mark(z0)), x2)), MARK(cons(from(z0), x2)))
   MARK(sel(x0, cons(sel(z0, z1), x2))) -> c8(A__SEL(mark(x0), cons(a__sel(mark(z0), mark(z1)), x2)), MARK(cons(sel(z0, z1), x2)))
   MARK(sel(x0, cons(cons(z0, z1), x2))) -> c8(A__SEL(mark(x0), cons(cons(mark(z0), z1), x2)), MARK(cons(cons(z0, z1), x2)))
   MARK(sel(x0, cons(s(z0), x2))) -> c8(A__SEL(mark(x0), cons(s(mark(z0)), x2)), MARK(cons(s(z0), x2)))
   MARK(sel(x0, cons(0, x2))) -> c8(A__SEL(mark(x0), cons(0, x2)), MARK(cons(0, x2)))
   MARK(sel(from(z0), cons(x1, x2))) -> c8(A__SEL(a__from(mark(z0)), cons(mark(x1), x2)), MARK(cons(x1, x2)))
   MARK(sel(sel(z0, z1), cons(x1, x2))) -> c8(A__SEL(a__sel(mark(z0), mark(z1)), cons(mark(x1), x2)), MARK(cons(x1, x2)))
   MARK(sel(s(z0), cons(x1, x2))) -> c8(A__SEL(s(mark(z0)), cons(mark(x1), x2)), MARK(cons(x1, x2)))
   MARK(sel(0, cons(x1, x2))) -> c8(A__SEL(0, cons(mark(x1), x2)), MARK(cons(x1, x2)))
   MARK(sel(x0, cons(x1, x2))) -> c8(MARK(cons(x1, x2)))
   MARK(sel(cons(z0, z1), cons(x1, x2))) -> c8(MARK(cons(x1, x2)))
   MARK(sel(from(from(z0)), x1)) -> c8(A__SEL(a__from(a__from(mark(z0))), mark(x1)), MARK(x1))
   MARK(sel(from(sel(z0, z1)), x1)) -> c8(A__SEL(a__from(a__sel(mark(z0), mark(z1))), mark(x1)), MARK(x1))
   MARK(sel(from(cons(z0, z1)), x1)) -> c8(A__SEL(a__from(cons(mark(z0), z1)), mark(x1)), MARK(x1))
   MARK(sel(from(s(z0)), x1)) -> c8(A__SEL(a__from(s(mark(z0))), mark(x1)), MARK(x1))
   MARK(sel(from(0), x1)) -> c8(A__SEL(a__from(0), mark(x1)), MARK(x1))
   MARK(sel(from(x0), s(z0))) -> c8(MARK(s(z0)))
   MARK(sel(from(x0), x1)) -> c8(MARK(x1))
   MARK(sel(sel(x0, from(z0)), x2)) -> c8(A__SEL(a__sel(mark(x0), a__from(mark(z0))), mark(x2)), MARK(x2))
   MARK(sel(sel(x0, sel(z0, z1)), x2)) -> c8(A__SEL(a__sel(mark(x0), a__sel(mark(z0), mark(z1))), mark(x2)), MARK(x2))
   MARK(sel(sel(x0, cons(z0, z1)), x2)) -> c8(A__SEL(a__sel(mark(x0), cons(mark(z0), z1)), mark(x2)), MARK(x2))
   MARK(sel(sel(x0, s(z0)), x2)) -> c8(A__SEL(a__sel(mark(x0), s(mark(z0))), mark(x2)), MARK(x2))
   MARK(sel(sel(x0, 0), x2)) -> c8(A__SEL(a__sel(mark(x0), 0), mark(x2)), MARK(x2))
   MARK(sel(sel(from(z0), x1), x2)) -> c8(A__SEL(a__sel(a__from(mark(z0)), mark(x1)), mark(x2)), MARK(x2))
   MARK(sel(sel(sel(z0, z1), x1), x2)) -> c8(A__SEL(a__sel(a__sel(mark(z0), mark(z1)), mark(x1)), mark(x2)), MARK(x2))
   MARK(sel(sel(cons(z0, z1), x1), x2)) -> c8(A__SEL(a__sel(cons(mark(z0), z1), mark(x1)), mark(x2)), MARK(x2))
   MARK(sel(sel(s(z0), x1), x2)) -> c8(A__SEL(a__sel(s(mark(z0)), mark(x1)), mark(x2)), MARK(x2))
   MARK(sel(sel(0, x1), x2)) -> c8(A__SEL(a__sel(0, mark(x1)), mark(x2)), MARK(x2))
   MARK(sel(sel(x0, x1), s(z0))) -> c8(MARK(s(z0)))
   MARK(sel(sel(x0, x1), x2)) -> c8(MARK(x2))
   MARK(sel(s(from(z0)), x1)) -> c8(A__SEL(s(a__from(mark(z0))), mark(x1)), MARK(x1))
   MARK(sel(s(sel(z0, z1)), x1)) -> c8(A__SEL(s(a__sel(mark(z0), mark(z1))), mark(x1)), MARK(x1))
   MARK(sel(s(cons(z0, z1)), x1)) -> c8(A__SEL(s(cons(mark(z0), z1)), mark(x1)), MARK(x1))
   MARK(sel(s(s(z0)), x1)) -> c8(A__SEL(s(s(mark(z0))), mark(x1)), MARK(x1))
   MARK(sel(s(0), x1)) -> c8(A__SEL(s(0), mark(x1)), MARK(x1))
   MARK(sel(s(x0), s(z0))) -> c8(MARK(s(z0)))
   MARK(sel(0, s(z0))) -> c8(A__SEL(0, s(mark(z0))), MARK(s(z0)))
   MARK(sel(0, 0)) -> c8(A__SEL(0, 0), MARK(0))
K tuples:none
Defined Rule Symbols:   a__from_1, a__sel_2, mark_1

Defined Pair Symbols:   A__FROM_1, A__SEL_2, MARK_1

Compound Symbols:   c_1, c2_1, c6_2, c9_1, c10_1, c3_1, c4_1, c7_1, c8_1, c3_2, c4_2, c7_2, c8_2


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

(201) CdtLeafRemovalProof (BOTH BOUNDS(ID, ID))
Removed 1 trailing nodes:
   MARK(sel(0, 0)) -> c8(A__SEL(0, 0), MARK(0))

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

(202)
Obligation:
Complexity Dependency Tuples Problem

Rules:
   a__from(z0) -> cons(mark(z0), from(s(z0)))
   a__from(z0) -> from(z0)
   a__sel(0, cons(z0, z1)) -> mark(z0)
   a__sel(s(z0), cons(z1, z2)) -> a__sel(mark(z0), mark(z2))
   a__sel(z0, z1) -> sel(z0, z1)
   mark(from(z0)) -> a__from(mark(z0))
   mark(sel(z0, z1)) -> a__sel(mark(z0), mark(z1))
   mark(cons(z0, z1)) -> cons(mark(z0), z1)
   mark(s(z0)) -> s(mark(z0))
   mark(0) -> 0
Tuples:
   A__FROM(z0) -> c(MARK(z0))
   A__SEL(0, cons(z0, z1)) -> c2(MARK(z0))
   MARK(from(z0)) -> c6(A__FROM(mark(z0)), MARK(z0))
   MARK(cons(z0, z1)) -> c9(MARK(z0))
   MARK(s(z0)) -> c10(MARK(z0))
   A__SEL(s(x0), cons(x1, s(z0))) -> c3(MARK(x0))
   A__SEL(s(x0), cons(x1, 0)) -> c3(MARK(x0))
   A__SEL(s(cons(z0, z1)), cons(x1, x2)) -> c3(MARK(cons(z0, z1)))
   A__SEL(s(x0), cons(x1, s(z0))) -> c4(MARK(s(z0)))
   A__SEL(s(cons(z0, z1)), cons(x1, x2)) -> c4(MARK(x2))
   MARK(sel(x0, s(z0))) -> c7(MARK(x0))
   MARK(sel(x0, 0)) -> c7(MARK(x0))
   MARK(sel(cons(z0, z1), x1)) -> c7(MARK(cons(z0, z1)))
   MARK(sel(x0, s(z0))) -> c8(MARK(s(z0)))
   MARK(sel(cons(z0, z1), x1)) -> c8(MARK(x1))
   A__SEL(s(x0), cons(x1, from(x2))) -> c3(A__SEL(mark(x0), cons(mark(mark(x2)), from(s(mark(x2))))), MARK(x0))
   A__SEL(s(x0), cons(x1, from(from(z0)))) -> c3(A__SEL(mark(x0), a__from(a__from(mark(z0)))), MARK(x0))
   A__SEL(s(x0), cons(x1, from(sel(z0, z1)))) -> c3(A__SEL(mark(x0), a__from(a__sel(mark(z0), mark(z1)))), MARK(x0))
   A__SEL(s(x0), cons(x1, from(cons(z0, z1)))) -> c3(A__SEL(mark(x0), a__from(cons(mark(z0), z1))), MARK(x0))
   A__SEL(s(x0), cons(x1, from(s(z0)))) -> c3(A__SEL(mark(x0), a__from(s(mark(z0)))), MARK(x0))
   A__SEL(s(x0), cons(x1, from(0))) -> c3(A__SEL(mark(x0), a__from(0)), MARK(x0))
   A__SEL(s(from(z0)), cons(x1, from(x2))) -> c3(A__SEL(a__from(mark(z0)), a__from(mark(x2))), MARK(from(z0)))
   A__SEL(s(sel(z0, z1)), cons(x1, from(x2))) -> c3(A__SEL(a__sel(mark(z0), mark(z1)), a__from(mark(x2))), MARK(sel(z0, z1)))
   A__SEL(s(s(z0)), cons(x1, from(x2))) -> c3(A__SEL(s(mark(z0)), a__from(mark(x2))), MARK(s(z0)))
   A__SEL(s(x0), cons(x1, from(x2))) -> c3(MARK(x0))
   A__SEL(s(cons(z0, z1)), cons(x1, from(x2))) -> c3(MARK(cons(z0, z1)))
   A__SEL(s(0), cons(x1, from(x2))) -> c3(A__SEL(0, a__from(mark(x2))))
   A__SEL(s(x0), cons(x1, sel(x2, from(z0)))) -> c3(A__SEL(mark(x0), a__sel(mark(x2), a__from(mark(z0)))), MARK(x0))
   A__SEL(s(x0), cons(x1, sel(x2, sel(z0, z1)))) -> c3(A__SEL(mark(x0), a__sel(mark(x2), a__sel(mark(z0), mark(z1)))), MARK(x0))
   A__SEL(s(x0), cons(x1, sel(x2, cons(z0, z1)))) -> c3(A__SEL(mark(x0), a__sel(mark(x2), cons(mark(z0), z1))), MARK(x0))
   A__SEL(s(x0), cons(x1, sel(x2, s(z0)))) -> c3(A__SEL(mark(x0), a__sel(mark(x2), s(mark(z0)))), MARK(x0))
   A__SEL(s(x0), cons(x1, sel(x2, 0))) -> c3(A__SEL(mark(x0), a__sel(mark(x2), 0)), MARK(x0))
   A__SEL(s(x0), cons(x1, sel(from(z0), x3))) -> c3(A__SEL(mark(x0), a__sel(a__from(mark(z0)), mark(x3))), MARK(x0))
   A__SEL(s(x0), cons(x1, sel(sel(z0, z1), x3))) -> c3(A__SEL(mark(x0), a__sel(a__sel(mark(z0), mark(z1)), mark(x3))), MARK(x0))
   A__SEL(s(x0), cons(x1, sel(cons(z0, z1), x3))) -> c3(A__SEL(mark(x0), a__sel(cons(mark(z0), z1), mark(x3))), MARK(x0))
   A__SEL(s(x0), cons(x1, sel(s(z0), x3))) -> c3(A__SEL(mark(x0), a__sel(s(mark(z0)), mark(x3))), MARK(x0))
   A__SEL(s(x0), cons(x1, sel(0, x3))) -> c3(A__SEL(mark(x0), a__sel(0, mark(x3))), MARK(x0))
   A__SEL(s(from(z0)), cons(x1, sel(x2, x3))) -> c3(A__SEL(a__from(mark(z0)), a__sel(mark(x2), mark(x3))), MARK(from(z0)))
   A__SEL(s(sel(z0, z1)), cons(x1, sel(x2, x3))) -> c3(A__SEL(a__sel(mark(z0), mark(z1)), a__sel(mark(x2), mark(x3))), MARK(sel(z0, z1)))
   A__SEL(s(s(z0)), cons(x1, sel(x2, x3))) -> c3(A__SEL(s(mark(z0)), a__sel(mark(x2), mark(x3))), MARK(s(z0)))
   A__SEL(s(x0), cons(x1, sel(x2, x3))) -> c3(MARK(x0))
   A__SEL(s(cons(z0, z1)), cons(x1, sel(x2, x3))) -> c3(MARK(cons(z0, z1)))
   A__SEL(s(0), cons(x1, sel(x2, x3))) -> c3(A__SEL(0, a__sel(mark(x2), mark(x3))))
   A__SEL(s(x0), cons(x1, cons(from(z0), x3))) -> c3(A__SEL(mark(x0), cons(a__from(mark(z0)), x3)), MARK(x0))
   A__SEL(s(x0), cons(x1, cons(sel(z0, z1), x3))) -> c3(A__SEL(mark(x0), cons(a__sel(mark(z0), mark(z1)), x3)), MARK(x0))
   A__SEL(s(x0), cons(x1, cons(cons(z0, z1), x3))) -> c3(A__SEL(mark(x0), cons(cons(mark(z0), z1), x3)), MARK(x0))
   A__SEL(s(x0), cons(x1, cons(s(z0), x3))) -> c3(A__SEL(mark(x0), cons(s(mark(z0)), x3)), MARK(x0))
   A__SEL(s(x0), cons(x1, cons(0, x3))) -> c3(A__SEL(mark(x0), cons(0, x3)), MARK(x0))
   A__SEL(s(from(z0)), cons(x1, cons(x2, x3))) -> c3(A__SEL(a__from(mark(z0)), cons(mark(x2), x3)), MARK(from(z0)))
   A__SEL(s(sel(z0, z1)), cons(x1, cons(x2, x3))) -> c3(A__SEL(a__sel(mark(z0), mark(z1)), cons(mark(x2), x3)), MARK(sel(z0, z1)))
   A__SEL(s(s(z0)), cons(x1, cons(x2, x3))) -> c3(A__SEL(s(mark(z0)), cons(mark(x2), x3)), MARK(s(z0)))
   A__SEL(s(cons(z0, z1)), cons(x1, cons(x2, x3))) -> c3(MARK(cons(z0, z1)))
   A__SEL(s(0), cons(x1, cons(x2, x3))) -> c3(A__SEL(0, cons(mark(x2), x3)))
   A__SEL(s(from(from(z0))), cons(x1, x2)) -> c3(A__SEL(a__from(a__from(mark(z0))), mark(x2)), MARK(from(from(z0))))
   A__SEL(s(from(sel(z0, z1))), cons(x1, x2)) -> c3(A__SEL(a__from(a__sel(mark(z0), mark(z1))), mark(x2)), MARK(from(sel(z0, z1))))
   A__SEL(s(from(cons(z0, z1))), cons(x1, x2)) -> c3(A__SEL(a__from(cons(mark(z0), z1)), mark(x2)), MARK(from(cons(z0, z1))))
   A__SEL(s(from(s(z0))), cons(x1, x2)) -> c3(A__SEL(a__from(s(mark(z0))), mark(x2)), MARK(from(s(z0))))
   A__SEL(s(from(0)), cons(x1, x2)) -> c3(A__SEL(a__from(0), mark(x2)), MARK(from(0)))
   A__SEL(s(from(x0)), cons(x1, x2)) -> c3(MARK(from(x0)))
   A__SEL(s(from(x0)), cons(x1, s(z0))) -> c3(MARK(from(x0)))
   A__SEL(s(from(x0)), cons(x1, 0)) -> c3(MARK(from(x0)))
   A__SEL(s(sel(x0, from(z0))), cons(x2, x3)) -> c3(A__SEL(a__sel(mark(x0), a__from(mark(z0))), mark(x3)), MARK(sel(x0, from(z0))))
   A__SEL(s(sel(x0, sel(z0, z1))), cons(x2, x3)) -> c3(A__SEL(a__sel(mark(x0), a__sel(mark(z0), mark(z1))), mark(x3)), MARK(sel(x0, sel(z0, z1))))
   A__SEL(s(sel(x0, cons(z0, z1))), cons(x2, x3)) -> c3(A__SEL(a__sel(mark(x0), cons(mark(z0), z1)), mark(x3)), MARK(sel(x0, cons(z0, z1))))
   A__SEL(s(sel(x0, s(z0))), cons(x2, x3)) -> c3(A__SEL(a__sel(mark(x0), s(mark(z0))), mark(x3)), MARK(sel(x0, s(z0))))
   A__SEL(s(sel(x0, 0)), cons(x2, x3)) -> c3(A__SEL(a__sel(mark(x0), 0), mark(x3)), MARK(sel(x0, 0)))
   A__SEL(s(sel(from(z0), x1)), cons(x2, x3)) -> c3(A__SEL(a__sel(a__from(mark(z0)), mark(x1)), mark(x3)), MARK(sel(from(z0), x1)))
   A__SEL(s(sel(sel(z0, z1), x1)), cons(x2, x3)) -> c3(A__SEL(a__sel(a__sel(mark(z0), mark(z1)), mark(x1)), mark(x3)), MARK(sel(sel(z0, z1), x1)))
   A__SEL(s(sel(cons(z0, z1), x1)), cons(x2, x3)) -> c3(A__SEL(a__sel(cons(mark(z0), z1), mark(x1)), mark(x3)), MARK(sel(cons(z0, z1), x1)))
   A__SEL(s(sel(s(z0), x1)), cons(x2, x3)) -> c3(A__SEL(a__sel(s(mark(z0)), mark(x1)), mark(x3)), MARK(sel(s(z0), x1)))
   A__SEL(s(sel(0, x1)), cons(x2, x3)) -> c3(A__SEL(a__sel(0, mark(x1)), mark(x3)), MARK(sel(0, x1)))
   A__SEL(s(sel(x0, x1)), cons(x2, s(z0))) -> c3(MARK(sel(x0, x1)))
   A__SEL(s(sel(x0, x1)), cons(x2, 0)) -> c3(MARK(sel(x0, x1)))
   A__SEL(s(sel(x0, x1)), cons(x2, x3)) -> c3(MARK(sel(x0, x1)))
   A__SEL(s(s(from(z0))), cons(x1, x2)) -> c3(A__SEL(s(a__from(mark(z0))), mark(x2)), MARK(s(from(z0))))
   A__SEL(s(s(sel(z0, z1))), cons(x1, x2)) -> c3(A__SEL(s(a__sel(mark(z0), mark(z1))), mark(x2)), MARK(s(sel(z0, z1))))
   A__SEL(s(s(cons(z0, z1))), cons(x1, x2)) -> c3(A__SEL(s(cons(mark(z0), z1)), mark(x2)), MARK(s(cons(z0, z1))))
   A__SEL(s(s(s(z0))), cons(x1, x2)) -> c3(A__SEL(s(s(mark(z0))), mark(x2)), MARK(s(s(z0))))
   A__SEL(s(s(0)), cons(x1, x2)) -> c3(A__SEL(s(0), mark(x2)), MARK(s(0)))
   A__SEL(s(s(x0)), cons(x1, x2)) -> c3(MARK(s(x0)))
   A__SEL(s(s(x0)), cons(x1, s(z0))) -> c3(MARK(s(x0)))
   A__SEL(s(s(x0)), cons(x1, 0)) -> c3(MARK(s(x0)))
   A__SEL(s(x0), cons(x1, from(x2))) -> c4(A__SEL(mark(x0), cons(mark(mark(x2)), from(s(mark(x2))))), MARK(from(x2)))
   A__SEL(s(x0), cons(x1, from(from(z0)))) -> c4(A__SEL(mark(x0), a__from(a__from(mark(z0)))), MARK(from(from(z0))))
   A__SEL(s(x0), cons(x1, from(sel(z0, z1)))) -> c4(A__SEL(mark(x0), a__from(a__sel(mark(z0), mark(z1)))), MARK(from(sel(z0, z1))))
   A__SEL(s(x0), cons(x1, from(cons(z0, z1)))) -> c4(A__SEL(mark(x0), a__from(cons(mark(z0), z1))), MARK(from(cons(z0, z1))))
   A__SEL(s(x0), cons(x1, from(s(z0)))) -> c4(A__SEL(mark(x0), a__from(s(mark(z0)))), MARK(from(s(z0))))
   A__SEL(s(x0), cons(x1, from(0))) -> c4(A__SEL(mark(x0), a__from(0)), MARK(from(0)))
   A__SEL(s(from(z0)), cons(x1, from(x2))) -> c4(A__SEL(a__from(mark(z0)), a__from(mark(x2))), MARK(from(x2)))
   A__SEL(s(sel(z0, z1)), cons(x1, from(x2))) -> c4(A__SEL(a__sel(mark(z0), mark(z1)), a__from(mark(x2))), MARK(from(x2)))
   A__SEL(s(s(z0)), cons(x1, from(x2))) -> c4(A__SEL(s(mark(z0)), a__from(mark(x2))), MARK(from(x2)))
   A__SEL(s(0), cons(x1, from(x2))) -> c4(A__SEL(0, a__from(mark(x2))), MARK(from(x2)))
   A__SEL(s(x0), cons(x1, from(x2))) -> c4(MARK(from(x2)))
   A__SEL(s(cons(z0, z1)), cons(x1, from(x2))) -> c4(MARK(from(x2)))
   A__SEL(s(x0), cons(x1, sel(x2, from(z0)))) -> c4(A__SEL(mark(x0), a__sel(mark(x2), a__from(mark(z0)))), MARK(sel(x2, from(z0))))
   A__SEL(s(x0), cons(x1, sel(x2, sel(z0, z1)))) -> c4(A__SEL(mark(x0), a__sel(mark(x2), a__sel(mark(z0), mark(z1)))), MARK(sel(x2, sel(z0, z1))))
   A__SEL(s(x0), cons(x1, sel(x2, cons(z0, z1)))) -> c4(A__SEL(mark(x0), a__sel(mark(x2), cons(mark(z0), z1))), MARK(sel(x2, cons(z0, z1))))
   A__SEL(s(x0), cons(x1, sel(x2, s(z0)))) -> c4(A__SEL(mark(x0), a__sel(mark(x2), s(mark(z0)))), MARK(sel(x2, s(z0))))
   A__SEL(s(x0), cons(x1, sel(x2, 0))) -> c4(A__SEL(mark(x0), a__sel(mark(x2), 0)), MARK(sel(x2, 0)))
   A__SEL(s(x0), cons(x1, sel(from(z0), x3))) -> c4(A__SEL(mark(x0), a__sel(a__from(mark(z0)), mark(x3))), MARK(sel(from(z0), x3)))
   A__SEL(s(x0), cons(x1, sel(sel(z0, z1), x3))) -> c4(A__SEL(mark(x0), a__sel(a__sel(mark(z0), mark(z1)), mark(x3))), MARK(sel(sel(z0, z1), x3)))
   A__SEL(s(x0), cons(x1, sel(cons(z0, z1), x3))) -> c4(A__SEL(mark(x0), a__sel(cons(mark(z0), z1), mark(x3))), MARK(sel(cons(z0, z1), x3)))
   A__SEL(s(x0), cons(x1, sel(s(z0), x3))) -> c4(A__SEL(mark(x0), a__sel(s(mark(z0)), mark(x3))), MARK(sel(s(z0), x3)))
   A__SEL(s(x0), cons(x1, sel(0, x3))) -> c4(A__SEL(mark(x0), a__sel(0, mark(x3))), MARK(sel(0, x3)))
   A__SEL(s(from(z0)), cons(x1, sel(x2, x3))) -> c4(A__SEL(a__from(mark(z0)), a__sel(mark(x2), mark(x3))), MARK(sel(x2, x3)))
   A__SEL(s(sel(z0, z1)), cons(x1, sel(x2, x3))) -> c4(A__SEL(a__sel(mark(z0), mark(z1)), a__sel(mark(x2), mark(x3))), MARK(sel(x2, x3)))
   A__SEL(s(s(z0)), cons(x1, sel(x2, x3))) -> c4(A__SEL(s(mark(z0)), a__sel(mark(x2), mark(x3))), MARK(sel(x2, x3)))
   A__SEL(s(0), cons(x1, sel(x2, x3))) -> c4(A__SEL(0, a__sel(mark(x2), mark(x3))), MARK(sel(x2, x3)))
   A__SEL(s(x0), cons(x1, sel(x2, x3))) -> c4(MARK(sel(x2, x3)))
   A__SEL(s(cons(z0, z1)), cons(x1, sel(x2, x3))) -> c4(MARK(sel(x2, x3)))
   A__SEL(s(x0), cons(x1, cons(from(z0), x3))) -> c4(A__SEL(mark(x0), cons(a__from(mark(z0)), x3)), MARK(cons(from(z0), x3)))
   A__SEL(s(x0), cons(x1, cons(sel(z0, z1), x3))) -> c4(A__SEL(mark(x0), cons(a__sel(mark(z0), mark(z1)), x3)), MARK(cons(sel(z0, z1), x3)))
   A__SEL(s(x0), cons(x1, cons(cons(z0, z1), x3))) -> c4(A__SEL(mark(x0), cons(cons(mark(z0), z1), x3)), MARK(cons(cons(z0, z1), x3)))
   A__SEL(s(x0), cons(x1, cons(s(z0), x3))) -> c4(A__SEL(mark(x0), cons(s(mark(z0)), x3)), MARK(cons(s(z0), x3)))
   A__SEL(s(x0), cons(x1, cons(0, x3))) -> c4(A__SEL(mark(x0), cons(0, x3)), MARK(cons(0, x3)))
   A__SEL(s(from(z0)), cons(x1, cons(x2, x3))) -> c4(A__SEL(a__from(mark(z0)), cons(mark(x2), x3)), MARK(cons(x2, x3)))
   A__SEL(s(sel(z0, z1)), cons(x1, cons(x2, x3))) -> c4(A__SEL(a__sel(mark(z0), mark(z1)), cons(mark(x2), x3)), MARK(cons(x2, x3)))
   A__SEL(s(s(z0)), cons(x1, cons(x2, x3))) -> c4(A__SEL(s(mark(z0)), cons(mark(x2), x3)), MARK(cons(x2, x3)))
   A__SEL(s(0), cons(x1, cons(x2, x3))) -> c4(A__SEL(0, cons(mark(x2), x3)), MARK(cons(x2, x3)))
   A__SEL(s(x0), cons(x1, cons(x2, x3))) -> c4(MARK(cons(x2, x3)))
   A__SEL(s(cons(z0, z1)), cons(x1, cons(x2, x3))) -> c4(MARK(cons(x2, x3)))
   A__SEL(s(from(from(z0))), cons(x1, x2)) -> c4(A__SEL(a__from(a__from(mark(z0))), mark(x2)), MARK(x2))
   A__SEL(s(from(sel(z0, z1))), cons(x1, x2)) -> c4(A__SEL(a__from(a__sel(mark(z0), mark(z1))), mark(x2)), MARK(x2))
   A__SEL(s(from(cons(z0, z1))), cons(x1, x2)) -> c4(A__SEL(a__from(cons(mark(z0), z1)), mark(x2)), MARK(x2))
   A__SEL(s(from(s(z0))), cons(x1, x2)) -> c4(A__SEL(a__from(s(mark(z0))), mark(x2)), MARK(x2))
   A__SEL(s(from(0)), cons(x1, x2)) -> c4(A__SEL(a__from(0), mark(x2)), MARK(x2))
   A__SEL(s(from(x0)), cons(x1, s(z0))) -> c4(MARK(s(z0)))
   A__SEL(s(from(x0)), cons(x1, x2)) -> c4(MARK(x2))
   A__SEL(s(sel(x0, from(z0))), cons(x2, x3)) -> c4(A__SEL(a__sel(mark(x0), a__from(mark(z0))), mark(x3)), MARK(x3))
   A__SEL(s(sel(x0, sel(z0, z1))), cons(x2, x3)) -> c4(A__SEL(a__sel(mark(x0), a__sel(mark(z0), mark(z1))), mark(x3)), MARK(x3))
   A__SEL(s(sel(x0, cons(z0, z1))), cons(x2, x3)) -> c4(A__SEL(a__sel(mark(x0), cons(mark(z0), z1)), mark(x3)), MARK(x3))
   A__SEL(s(sel(x0, s(z0))), cons(x2, x3)) -> c4(A__SEL(a__sel(mark(x0), s(mark(z0))), mark(x3)), MARK(x3))
   A__SEL(s(sel(x0, 0)), cons(x2, x3)) -> c4(A__SEL(a__sel(mark(x0), 0), mark(x3)), MARK(x3))
   A__SEL(s(sel(from(z0), x1)), cons(x2, x3)) -> c4(A__SEL(a__sel(a__from(mark(z0)), mark(x1)), mark(x3)), MARK(x3))
   A__SEL(s(sel(sel(z0, z1), x1)), cons(x2, x3)) -> c4(A__SEL(a__sel(a__sel(mark(z0), mark(z1)), mark(x1)), mark(x3)), MARK(x3))
   A__SEL(s(sel(cons(z0, z1), x1)), cons(x2, x3)) -> c4(A__SEL(a__sel(cons(mark(z0), z1), mark(x1)), mark(x3)), MARK(x3))
   A__SEL(s(sel(s(z0), x1)), cons(x2, x3)) -> c4(A__SEL(a__sel(s(mark(z0)), mark(x1)), mark(x3)), MARK(x3))
   A__SEL(s(sel(0, x1)), cons(x2, x3)) -> c4(A__SEL(a__sel(0, mark(x1)), mark(x3)), MARK(x3))
   A__SEL(s(sel(x0, x1)), cons(x2, s(z0))) -> c4(MARK(s(z0)))
   A__SEL(s(sel(x0, x1)), cons(x2, x3)) -> c4(MARK(x3))
   A__SEL(s(s(from(z0))), cons(x1, x2)) -> c4(A__SEL(s(a__from(mark(z0))), mark(x2)), MARK(x2))
   A__SEL(s(s(sel(z0, z1))), cons(x1, x2)) -> c4(A__SEL(s(a__sel(mark(z0), mark(z1))), mark(x2)), MARK(x2))
   A__SEL(s(s(cons(z0, z1))), cons(x1, x2)) -> c4(A__SEL(s(cons(mark(z0), z1)), mark(x2)), MARK(x2))
   A__SEL(s(s(s(z0))), cons(x1, x2)) -> c4(A__SEL(s(s(mark(z0))), mark(x2)), MARK(x2))
   A__SEL(s(s(0)), cons(x1, x2)) -> c4(A__SEL(s(0), mark(x2)), MARK(x2))
   A__SEL(s(s(x0)), cons(x1, s(z0))) -> c4(MARK(s(z0)))
   A__SEL(s(0), cons(x0, s(z0))) -> c4(MARK(s(z0)))
   MARK(sel(x0, from(x1))) -> c7(A__SEL(mark(x0), cons(mark(mark(x1)), from(s(mark(x1))))), MARK(x0))
   MARK(sel(x0, from(from(z0)))) -> c7(A__SEL(mark(x0), a__from(a__from(mark(z0)))), MARK(x0))
   MARK(sel(x0, from(sel(z0, z1)))) -> c7(A__SEL(mark(x0), a__from(a__sel(mark(z0), mark(z1)))), MARK(x0))
   MARK(sel(x0, from(cons(z0, z1)))) -> c7(A__SEL(mark(x0), a__from(cons(mark(z0), z1))), MARK(x0))
   MARK(sel(x0, from(s(z0)))) -> c7(A__SEL(mark(x0), a__from(s(mark(z0)))), MARK(x0))
   MARK(sel(x0, from(0))) -> c7(A__SEL(mark(x0), a__from(0)), MARK(x0))
   MARK(sel(from(z0), from(x1))) -> c7(A__SEL(a__from(mark(z0)), a__from(mark(x1))), MARK(from(z0)))
   MARK(sel(sel(z0, z1), from(x1))) -> c7(A__SEL(a__sel(mark(z0), mark(z1)), a__from(mark(x1))), MARK(sel(z0, z1)))
   MARK(sel(s(z0), from(x1))) -> c7(A__SEL(s(mark(z0)), a__from(mark(x1))), MARK(s(z0)))
   MARK(sel(x0, from(x1))) -> c7(MARK(x0))
   MARK(sel(cons(z0, z1), from(x1))) -> c7(MARK(cons(z0, z1)))
   MARK(sel(0, from(x1))) -> c7(A__SEL(0, a__from(mark(x1))))
   MARK(sel(x0, sel(x1, from(z0)))) -> c7(A__SEL(mark(x0), a__sel(mark(x1), a__from(mark(z0)))), MARK(x0))
   MARK(sel(x0, sel(x1, sel(z0, z1)))) -> c7(A__SEL(mark(x0), a__sel(mark(x1), a__sel(mark(z0), mark(z1)))), MARK(x0))
   MARK(sel(x0, sel(x1, cons(z0, z1)))) -> c7(A__SEL(mark(x0), a__sel(mark(x1), cons(mark(z0), z1))), MARK(x0))
   MARK(sel(x0, sel(x1, s(z0)))) -> c7(A__SEL(mark(x0), a__sel(mark(x1), s(mark(z0)))), MARK(x0))
   MARK(sel(x0, sel(x1, 0))) -> c7(A__SEL(mark(x0), a__sel(mark(x1), 0)), MARK(x0))
   MARK(sel(x0, sel(from(z0), x2))) -> c7(A__SEL(mark(x0), a__sel(a__from(mark(z0)), mark(x2))), MARK(x0))
   MARK(sel(x0, sel(sel(z0, z1), x2))) -> c7(A__SEL(mark(x0), a__sel(a__sel(mark(z0), mark(z1)), mark(x2))), MARK(x0))
   MARK(sel(x0, sel(cons(z0, z1), x2))) -> c7(A__SEL(mark(x0), a__sel(cons(mark(z0), z1), mark(x2))), MARK(x0))
   MARK(sel(x0, sel(s(z0), x2))) -> c7(A__SEL(mark(x0), a__sel(s(mark(z0)), mark(x2))), MARK(x0))
   MARK(sel(x0, sel(0, x2))) -> c7(A__SEL(mark(x0), a__sel(0, mark(x2))), MARK(x0))
   MARK(sel(from(z0), sel(x1, x2))) -> c7(A__SEL(a__from(mark(z0)), a__sel(mark(x1), mark(x2))), MARK(from(z0)))
   MARK(sel(sel(z0, z1), sel(x1, x2))) -> c7(A__SEL(a__sel(mark(z0), mark(z1)), a__sel(mark(x1), mark(x2))), MARK(sel(z0, z1)))
   MARK(sel(s(z0), sel(x1, x2))) -> c7(A__SEL(s(mark(z0)), a__sel(mark(x1), mark(x2))), MARK(s(z0)))
   MARK(sel(x0, sel(x1, x2))) -> c7(MARK(x0))
   MARK(sel(cons(z0, z1), sel(x1, x2))) -> c7(MARK(cons(z0, z1)))
   MARK(sel(0, sel(x1, x2))) -> c7(A__SEL(0, a__sel(mark(x1), mark(x2))))
   MARK(sel(x0, cons(from(z0), x2))) -> c7(A__SEL(mark(x0), cons(a__from(mark(z0)), x2)), MARK(x0))
   MARK(sel(x0, cons(sel(z0, z1), x2))) -> c7(A__SEL(mark(x0), cons(a__sel(mark(z0), mark(z1)), x2)), MARK(x0))
   MARK(sel(x0, cons(cons(z0, z1), x2))) -> c7(A__SEL(mark(x0), cons(cons(mark(z0), z1), x2)), MARK(x0))
   MARK(sel(x0, cons(s(z0), x2))) -> c7(A__SEL(mark(x0), cons(s(mark(z0)), x2)), MARK(x0))
   MARK(sel(x0, cons(0, x2))) -> c7(A__SEL(mark(x0), cons(0, x2)), MARK(x0))
   MARK(sel(from(z0), cons(x1, x2))) -> c7(A__SEL(a__from(mark(z0)), cons(mark(x1), x2)), MARK(from(z0)))
   MARK(sel(sel(z0, z1), cons(x1, x2))) -> c7(A__SEL(a__sel(mark(z0), mark(z1)), cons(mark(x1), x2)), MARK(sel(z0, z1)))
   MARK(sel(s(z0), cons(x1, x2))) -> c7(A__SEL(s(mark(z0)), cons(mark(x1), x2)), MARK(s(z0)))
   MARK(sel(cons(z0, z1), cons(x1, x2))) -> c7(MARK(cons(z0, z1)))
   MARK(sel(0, cons(x1, x2))) -> c7(A__SEL(0, cons(mark(x1), x2)))
   MARK(sel(from(from(z0)), x1)) -> c7(A__SEL(a__from(a__from(mark(z0))), mark(x1)), MARK(from(from(z0))))
   MARK(sel(from(sel(z0, z1)), x1)) -> c7(A__SEL(a__from(a__sel(mark(z0), mark(z1))), mark(x1)), MARK(from(sel(z0, z1))))
   MARK(sel(from(cons(z0, z1)), x1)) -> c7(A__SEL(a__from(cons(mark(z0), z1)), mark(x1)), MARK(from(cons(z0, z1))))
   MARK(sel(from(s(z0)), x1)) -> c7(A__SEL(a__from(s(mark(z0))), mark(x1)), MARK(from(s(z0))))
   MARK(sel(from(0), x1)) -> c7(A__SEL(a__from(0), mark(x1)), MARK(from(0)))
   MARK(sel(from(x0), x1)) -> c7(MARK(from(x0)))
   MARK(sel(from(x0), s(z0))) -> c7(MARK(from(x0)))
   MARK(sel(from(x0), 0)) -> c7(MARK(from(x0)))
   MARK(sel(sel(x0, from(z0)), x2)) -> c7(A__SEL(a__sel(mark(x0), a__from(mark(z0))), mark(x2)), MARK(sel(x0, from(z0))))
   MARK(sel(sel(x0, sel(z0, z1)), x2)) -> c7(A__SEL(a__sel(mark(x0), a__sel(mark(z0), mark(z1))), mark(x2)), MARK(sel(x0, sel(z0, z1))))
   MARK(sel(sel(x0, cons(z0, z1)), x2)) -> c7(A__SEL(a__sel(mark(x0), cons(mark(z0), z1)), mark(x2)), MARK(sel(x0, cons(z0, z1))))
   MARK(sel(sel(x0, s(z0)), x2)) -> c7(A__SEL(a__sel(mark(x0), s(mark(z0))), mark(x2)), MARK(sel(x0, s(z0))))
   MARK(sel(sel(x0, 0), x2)) -> c7(A__SEL(a__sel(mark(x0), 0), mark(x2)), MARK(sel(x0, 0)))
   MARK(sel(sel(from(z0), x1), x2)) -> c7(A__SEL(a__sel(a__from(mark(z0)), mark(x1)), mark(x2)), MARK(sel(from(z0), x1)))
   MARK(sel(sel(sel(z0, z1), x1), x2)) -> c7(A__SEL(a__sel(a__sel(mark(z0), mark(z1)), mark(x1)), mark(x2)), MARK(sel(sel(z0, z1), x1)))
   MARK(sel(sel(cons(z0, z1), x1), x2)) -> c7(A__SEL(a__sel(cons(mark(z0), z1), mark(x1)), mark(x2)), MARK(sel(cons(z0, z1), x1)))
   MARK(sel(sel(s(z0), x1), x2)) -> c7(A__SEL(a__sel(s(mark(z0)), mark(x1)), mark(x2)), MARK(sel(s(z0), x1)))
   MARK(sel(sel(0, x1), x2)) -> c7(A__SEL(a__sel(0, mark(x1)), mark(x2)), MARK(sel(0, x1)))
   MARK(sel(sel(x0, x1), s(z0))) -> c7(MARK(sel(x0, x1)))
   MARK(sel(sel(x0, x1), 0)) -> c7(MARK(sel(x0, x1)))
   MARK(sel(sel(x0, x1), x2)) -> c7(MARK(sel(x0, x1)))
   MARK(sel(s(from(z0)), x1)) -> c7(A__SEL(s(a__from(mark(z0))), mark(x1)), MARK(s(from(z0))))
   MARK(sel(s(sel(z0, z1)), x1)) -> c7(A__SEL(s(a__sel(mark(z0), mark(z1))), mark(x1)), MARK(s(sel(z0, z1))))
   MARK(sel(s(cons(z0, z1)), x1)) -> c7(A__SEL(s(cons(mark(z0), z1)), mark(x1)), MARK(s(cons(z0, z1))))
   MARK(sel(s(s(z0)), x1)) -> c7(A__SEL(s(s(mark(z0))), mark(x1)), MARK(s(s(z0))))
   MARK(sel(s(0), x1)) -> c7(A__SEL(s(0), mark(x1)), MARK(s(0)))
   MARK(sel(s(x0), x1)) -> c7(MARK(s(x0)))
   MARK(sel(s(x0), s(z0))) -> c7(MARK(s(x0)))
   MARK(sel(s(x0), 0)) -> c7(MARK(s(x0)))
   MARK(sel(x0, from(x1))) -> c8(A__SEL(mark(x0), cons(mark(mark(x1)), from(s(mark(x1))))), MARK(from(x1)))
   MARK(sel(x0, from(from(z0)))) -> c8(A__SEL(mark(x0), a__from(a__from(mark(z0)))), MARK(from(from(z0))))
   MARK(sel(x0, from(sel(z0, z1)))) -> c8(A__SEL(mark(x0), a__from(a__sel(mark(z0), mark(z1)))), MARK(from(sel(z0, z1))))
   MARK(sel(x0, from(cons(z0, z1)))) -> c8(A__SEL(mark(x0), a__from(cons(mark(z0), z1))), MARK(from(cons(z0, z1))))
   MARK(sel(x0, from(s(z0)))) -> c8(A__SEL(mark(x0), a__from(s(mark(z0)))), MARK(from(s(z0))))
   MARK(sel(x0, from(0))) -> c8(A__SEL(mark(x0), a__from(0)), MARK(from(0)))
   MARK(sel(from(z0), from(x1))) -> c8(A__SEL(a__from(mark(z0)), a__from(mark(x1))), MARK(from(x1)))
   MARK(sel(sel(z0, z1), from(x1))) -> c8(A__SEL(a__sel(mark(z0), mark(z1)), a__from(mark(x1))), MARK(from(x1)))
   MARK(sel(s(z0), from(x1))) -> c8(A__SEL(s(mark(z0)), a__from(mark(x1))), MARK(from(x1)))
   MARK(sel(0, from(x1))) -> c8(A__SEL(0, a__from(mark(x1))), MARK(from(x1)))
   MARK(sel(x0, from(x1))) -> c8(MARK(from(x1)))
   MARK(sel(cons(z0, z1), from(x1))) -> c8(MARK(from(x1)))
   MARK(sel(x0, sel(x1, from(z0)))) -> c8(A__SEL(mark(x0), a__sel(mark(x1), a__from(mark(z0)))), MARK(sel(x1, from(z0))))
   MARK(sel(x0, sel(x1, sel(z0, z1)))) -> c8(A__SEL(mark(x0), a__sel(mark(x1), a__sel(mark(z0), mark(z1)))), MARK(sel(x1, sel(z0, z1))))
   MARK(sel(x0, sel(x1, cons(z0, z1)))) -> c8(A__SEL(mark(x0), a__sel(mark(x1), cons(mark(z0), z1))), MARK(sel(x1, cons(z0, z1))))
   MARK(sel(x0, sel(x1, s(z0)))) -> c8(A__SEL(mark(x0), a__sel(mark(x1), s(mark(z0)))), MARK(sel(x1, s(z0))))
   MARK(sel(x0, sel(x1, 0))) -> c8(A__SEL(mark(x0), a__sel(mark(x1), 0)), MARK(sel(x1, 0)))
   MARK(sel(x0, sel(from(z0), x2))) -> c8(A__SEL(mark(x0), a__sel(a__from(mark(z0)), mark(x2))), MARK(sel(from(z0), x2)))
   MARK(sel(x0, sel(sel(z0, z1), x2))) -> c8(A__SEL(mark(x0), a__sel(a__sel(mark(z0), mark(z1)), mark(x2))), MARK(sel(sel(z0, z1), x2)))
   MARK(sel(x0, sel(cons(z0, z1), x2))) -> c8(A__SEL(mark(x0), a__sel(cons(mark(z0), z1), mark(x2))), MARK(sel(cons(z0, z1), x2)))
   MARK(sel(x0, sel(s(z0), x2))) -> c8(A__SEL(mark(x0), a__sel(s(mark(z0)), mark(x2))), MARK(sel(s(z0), x2)))
   MARK(sel(x0, sel(0, x2))) -> c8(A__SEL(mark(x0), a__sel(0, mark(x2))), MARK(sel(0, x2)))
   MARK(sel(from(z0), sel(x1, x2))) -> c8(A__SEL(a__from(mark(z0)), a__sel(mark(x1), mark(x2))), MARK(sel(x1, x2)))
   MARK(sel(sel(z0, z1), sel(x1, x2))) -> c8(A__SEL(a__sel(mark(z0), mark(z1)), a__sel(mark(x1), mark(x2))), MARK(sel(x1, x2)))
   MARK(sel(s(z0), sel(x1, x2))) -> c8(A__SEL(s(mark(z0)), a__sel(mark(x1), mark(x2))), MARK(sel(x1, x2)))
   MARK(sel(0, sel(x1, x2))) -> c8(A__SEL(0, a__sel(mark(x1), mark(x2))), MARK(sel(x1, x2)))
   MARK(sel(x0, sel(x1, x2))) -> c8(MARK(sel(x1, x2)))
   MARK(sel(cons(z0, z1), sel(x1, x2))) -> c8(MARK(sel(x1, x2)))
   MARK(sel(x0, cons(from(z0), x2))) -> c8(A__SEL(mark(x0), cons(a__from(mark(z0)), x2)), MARK(cons(from(z0), x2)))
   MARK(sel(x0, cons(sel(z0, z1), x2))) -> c8(A__SEL(mark(x0), cons(a__sel(mark(z0), mark(z1)), x2)), MARK(cons(sel(z0, z1), x2)))
   MARK(sel(x0, cons(cons(z0, z1), x2))) -> c8(A__SEL(mark(x0), cons(cons(mark(z0), z1), x2)), MARK(cons(cons(z0, z1), x2)))
   MARK(sel(x0, cons(s(z0), x2))) -> c8(A__SEL(mark(x0), cons(s(mark(z0)), x2)), MARK(cons(s(z0), x2)))
   MARK(sel(x0, cons(0, x2))) -> c8(A__SEL(mark(x0), cons(0, x2)), MARK(cons(0, x2)))
   MARK(sel(from(z0), cons(x1, x2))) -> c8(A__SEL(a__from(mark(z0)), cons(mark(x1), x2)), MARK(cons(x1, x2)))
   MARK(sel(sel(z0, z1), cons(x1, x2))) -> c8(A__SEL(a__sel(mark(z0), mark(z1)), cons(mark(x1), x2)), MARK(cons(x1, x2)))
   MARK(sel(s(z0), cons(x1, x2))) -> c8(A__SEL(s(mark(z0)), cons(mark(x1), x2)), MARK(cons(x1, x2)))
   MARK(sel(0, cons(x1, x2))) -> c8(A__SEL(0, cons(mark(x1), x2)), MARK(cons(x1, x2)))
   MARK(sel(x0, cons(x1, x2))) -> c8(MARK(cons(x1, x2)))
   MARK(sel(cons(z0, z1), cons(x1, x2))) -> c8(MARK(cons(x1, x2)))
   MARK(sel(from(from(z0)), x1)) -> c8(A__SEL(a__from(a__from(mark(z0))), mark(x1)), MARK(x1))
   MARK(sel(from(sel(z0, z1)), x1)) -> c8(A__SEL(a__from(a__sel(mark(z0), mark(z1))), mark(x1)), MARK(x1))
   MARK(sel(from(cons(z0, z1)), x1)) -> c8(A__SEL(a__from(cons(mark(z0), z1)), mark(x1)), MARK(x1))
   MARK(sel(from(s(z0)), x1)) -> c8(A__SEL(a__from(s(mark(z0))), mark(x1)), MARK(x1))
   MARK(sel(from(0), x1)) -> c8(A__SEL(a__from(0), mark(x1)), MARK(x1))
   MARK(sel(from(x0), s(z0))) -> c8(MARK(s(z0)))
   MARK(sel(from(x0), x1)) -> c8(MARK(x1))
   MARK(sel(sel(x0, from(z0)), x2)) -> c8(A__SEL(a__sel(mark(x0), a__from(mark(z0))), mark(x2)), MARK(x2))
   MARK(sel(sel(x0, sel(z0, z1)), x2)) -> c8(A__SEL(a__sel(mark(x0), a__sel(mark(z0), mark(z1))), mark(x2)), MARK(x2))
   MARK(sel(sel(x0, cons(z0, z1)), x2)) -> c8(A__SEL(a__sel(mark(x0), cons(mark(z0), z1)), mark(x2)), MARK(x2))
   MARK(sel(sel(x0, s(z0)), x2)) -> c8(A__SEL(a__sel(mark(x0), s(mark(z0))), mark(x2)), MARK(x2))
   MARK(sel(sel(x0, 0), x2)) -> c8(A__SEL(a__sel(mark(x0), 0), mark(x2)), MARK(x2))
   MARK(sel(sel(from(z0), x1), x2)) -> c8(A__SEL(a__sel(a__from(mark(z0)), mark(x1)), mark(x2)), MARK(x2))
   MARK(sel(sel(sel(z0, z1), x1), x2)) -> c8(A__SEL(a__sel(a__sel(mark(z0), mark(z1)), mark(x1)), mark(x2)), MARK(x2))
   MARK(sel(sel(cons(z0, z1), x1), x2)) -> c8(A__SEL(a__sel(cons(mark(z0), z1), mark(x1)), mark(x2)), MARK(x2))
   MARK(sel(sel(s(z0), x1), x2)) -> c8(A__SEL(a__sel(s(mark(z0)), mark(x1)), mark(x2)), MARK(x2))
   MARK(sel(sel(0, x1), x2)) -> c8(A__SEL(a__sel(0, mark(x1)), mark(x2)), MARK(x2))
   MARK(sel(sel(x0, x1), s(z0))) -> c8(MARK(s(z0)))
   MARK(sel(sel(x0, x1), x2)) -> c8(MARK(x2))
   MARK(sel(s(from(z0)), x1)) -> c8(A__SEL(s(a__from(mark(z0))), mark(x1)), MARK(x1))
   MARK(sel(s(sel(z0, z1)), x1)) -> c8(A__SEL(s(a__sel(mark(z0), mark(z1))), mark(x1)), MARK(x1))
   MARK(sel(s(cons(z0, z1)), x1)) -> c8(A__SEL(s(cons(mark(z0), z1)), mark(x1)), MARK(x1))
   MARK(sel(s(s(z0)), x1)) -> c8(A__SEL(s(s(mark(z0))), mark(x1)), MARK(x1))
   MARK(sel(s(0), x1)) -> c8(A__SEL(s(0), mark(x1)), MARK(x1))
   MARK(sel(s(x0), s(z0))) -> c8(MARK(s(z0)))
   MARK(sel(0, s(z0))) -> c8(A__SEL(0, s(mark(z0))), MARK(s(z0)))
S tuples:
   A__FROM(z0) -> c(MARK(z0))
   A__SEL(0, cons(z0, z1)) -> c2(MARK(z0))
   MARK(from(z0)) -> c6(A__FROM(mark(z0)), MARK(z0))
   MARK(cons(z0, z1)) -> c9(MARK(z0))
   MARK(s(z0)) -> c10(MARK(z0))
   A__SEL(s(x0), cons(x1, s(z0))) -> c3(MARK(x0))
   A__SEL(s(x0), cons(x1, 0)) -> c3(MARK(x0))
   A__SEL(s(cons(z0, z1)), cons(x1, x2)) -> c3(MARK(cons(z0, z1)))
   A__SEL(s(x0), cons(x1, s(z0))) -> c4(MARK(s(z0)))
   A__SEL(s(cons(z0, z1)), cons(x1, x2)) -> c4(MARK(x2))
   MARK(sel(x0, s(z0))) -> c7(MARK(x0))
   MARK(sel(x0, 0)) -> c7(MARK(x0))
   MARK(sel(cons(z0, z1), x1)) -> c7(MARK(cons(z0, z1)))
   MARK(sel(x0, s(z0))) -> c8(MARK(s(z0)))
   MARK(sel(cons(z0, z1), x1)) -> c8(MARK(x1))
   A__SEL(s(x0), cons(x1, from(x2))) -> c3(A__SEL(mark(x0), cons(mark(mark(x2)), from(s(mark(x2))))), MARK(x0))
   A__SEL(s(x0), cons(x1, from(from(z0)))) -> c3(A__SEL(mark(x0), a__from(a__from(mark(z0)))), MARK(x0))
   A__SEL(s(x0), cons(x1, from(sel(z0, z1)))) -> c3(A__SEL(mark(x0), a__from(a__sel(mark(z0), mark(z1)))), MARK(x0))
   A__SEL(s(x0), cons(x1, from(cons(z0, z1)))) -> c3(A__SEL(mark(x0), a__from(cons(mark(z0), z1))), MARK(x0))
   A__SEL(s(x0), cons(x1, from(s(z0)))) -> c3(A__SEL(mark(x0), a__from(s(mark(z0)))), MARK(x0))
   A__SEL(s(x0), cons(x1, from(0))) -> c3(A__SEL(mark(x0), a__from(0)), MARK(x0))
   A__SEL(s(from(z0)), cons(x1, from(x2))) -> c3(A__SEL(a__from(mark(z0)), a__from(mark(x2))), MARK(from(z0)))
   A__SEL(s(sel(z0, z1)), cons(x1, from(x2))) -> c3(A__SEL(a__sel(mark(z0), mark(z1)), a__from(mark(x2))), MARK(sel(z0, z1)))
   A__SEL(s(s(z0)), cons(x1, from(x2))) -> c3(A__SEL(s(mark(z0)), a__from(mark(x2))), MARK(s(z0)))
   A__SEL(s(x0), cons(x1, from(x2))) -> c3(MARK(x0))
   A__SEL(s(cons(z0, z1)), cons(x1, from(x2))) -> c3(MARK(cons(z0, z1)))
   A__SEL(s(0), cons(x1, from(x2))) -> c3(A__SEL(0, a__from(mark(x2))))
   A__SEL(s(x0), cons(x1, sel(x2, from(z0)))) -> c3(A__SEL(mark(x0), a__sel(mark(x2), a__from(mark(z0)))), MARK(x0))
   A__SEL(s(x0), cons(x1, sel(x2, sel(z0, z1)))) -> c3(A__SEL(mark(x0), a__sel(mark(x2), a__sel(mark(z0), mark(z1)))), MARK(x0))
   A__SEL(s(x0), cons(x1, sel(x2, cons(z0, z1)))) -> c3(A__SEL(mark(x0), a__sel(mark(x2), cons(mark(z0), z1))), MARK(x0))
   A__SEL(s(x0), cons(x1, sel(x2, s(z0)))) -> c3(A__SEL(mark(x0), a__sel(mark(x2), s(mark(z0)))), MARK(x0))
   A__SEL(s(x0), cons(x1, sel(x2, 0))) -> c3(A__SEL(mark(x0), a__sel(mark(x2), 0)), MARK(x0))
   A__SEL(s(x0), cons(x1, sel(from(z0), x3))) -> c3(A__SEL(mark(x0), a__sel(a__from(mark(z0)), mark(x3))), MARK(x0))
   A__SEL(s(x0), cons(x1, sel(sel(z0, z1), x3))) -> c3(A__SEL(mark(x0), a__sel(a__sel(mark(z0), mark(z1)), mark(x3))), MARK(x0))
   A__SEL(s(x0), cons(x1, sel(cons(z0, z1), x3))) -> c3(A__SEL(mark(x0), a__sel(cons(mark(z0), z1), mark(x3))), MARK(x0))
   A__SEL(s(x0), cons(x1, sel(s(z0), x3))) -> c3(A__SEL(mark(x0), a__sel(s(mark(z0)), mark(x3))), MARK(x0))
   A__SEL(s(x0), cons(x1, sel(0, x3))) -> c3(A__SEL(mark(x0), a__sel(0, mark(x3))), MARK(x0))
   A__SEL(s(from(z0)), cons(x1, sel(x2, x3))) -> c3(A__SEL(a__from(mark(z0)), a__sel(mark(x2), mark(x3))), MARK(from(z0)))
   A__SEL(s(sel(z0, z1)), cons(x1, sel(x2, x3))) -> c3(A__SEL(a__sel(mark(z0), mark(z1)), a__sel(mark(x2), mark(x3))), MARK(sel(z0, z1)))
   A__SEL(s(s(z0)), cons(x1, sel(x2, x3))) -> c3(A__SEL(s(mark(z0)), a__sel(mark(x2), mark(x3))), MARK(s(z0)))
   A__SEL(s(x0), cons(x1, sel(x2, x3))) -> c3(MARK(x0))
   A__SEL(s(cons(z0, z1)), cons(x1, sel(x2, x3))) -> c3(MARK(cons(z0, z1)))
   A__SEL(s(0), cons(x1, sel(x2, x3))) -> c3(A__SEL(0, a__sel(mark(x2), mark(x3))))
   A__SEL(s(x0), cons(x1, cons(from(z0), x3))) -> c3(A__SEL(mark(x0), cons(a__from(mark(z0)), x3)), MARK(x0))
   A__SEL(s(x0), cons(x1, cons(sel(z0, z1), x3))) -> c3(A__SEL(mark(x0), cons(a__sel(mark(z0), mark(z1)), x3)), MARK(x0))
   A__SEL(s(x0), cons(x1, cons(cons(z0, z1), x3))) -> c3(A__SEL(mark(x0), cons(cons(mark(z0), z1), x3)), MARK(x0))
   A__SEL(s(x0), cons(x1, cons(s(z0), x3))) -> c3(A__SEL(mark(x0), cons(s(mark(z0)), x3)), MARK(x0))
   A__SEL(s(x0), cons(x1, cons(0, x3))) -> c3(A__SEL(mark(x0), cons(0, x3)), MARK(x0))
   A__SEL(s(from(z0)), cons(x1, cons(x2, x3))) -> c3(A__SEL(a__from(mark(z0)), cons(mark(x2), x3)), MARK(from(z0)))
   A__SEL(s(sel(z0, z1)), cons(x1, cons(x2, x3))) -> c3(A__SEL(a__sel(mark(z0), mark(z1)), cons(mark(x2), x3)), MARK(sel(z0, z1)))
   A__SEL(s(s(z0)), cons(x1, cons(x2, x3))) -> c3(A__SEL(s(mark(z0)), cons(mark(x2), x3)), MARK(s(z0)))
   A__SEL(s(cons(z0, z1)), cons(x1, cons(x2, x3))) -> c3(MARK(cons(z0, z1)))
   A__SEL(s(0), cons(x1, cons(x2, x3))) -> c3(A__SEL(0, cons(mark(x2), x3)))
   A__SEL(s(from(from(z0))), cons(x1, x2)) -> c3(A__SEL(a__from(a__from(mark(z0))), mark(x2)), MARK(from(from(z0))))
   A__SEL(s(from(sel(z0, z1))), cons(x1, x2)) -> c3(A__SEL(a__from(a__sel(mark(z0), mark(z1))), mark(x2)), MARK(from(sel(z0, z1))))
   A__SEL(s(from(cons(z0, z1))), cons(x1, x2)) -> c3(A__SEL(a__from(cons(mark(z0), z1)), mark(x2)), MARK(from(cons(z0, z1))))
   A__SEL(s(from(s(z0))), cons(x1, x2)) -> c3(A__SEL(a__from(s(mark(z0))), mark(x2)), MARK(from(s(z0))))
   A__SEL(s(from(0)), cons(x1, x2)) -> c3(A__SEL(a__from(0), mark(x2)), MARK(from(0)))
   A__SEL(s(from(x0)), cons(x1, x2)) -> c3(MARK(from(x0)))
   A__SEL(s(from(x0)), cons(x1, s(z0))) -> c3(MARK(from(x0)))
   A__SEL(s(from(x0)), cons(x1, 0)) -> c3(MARK(from(x0)))
   A__SEL(s(sel(x0, from(z0))), cons(x2, x3)) -> c3(A__SEL(a__sel(mark(x0), a__from(mark(z0))), mark(x3)), MARK(sel(x0, from(z0))))
   A__SEL(s(sel(x0, sel(z0, z1))), cons(x2, x3)) -> c3(A__SEL(a__sel(mark(x0), a__sel(mark(z0), mark(z1))), mark(x3)), MARK(sel(x0, sel(z0, z1))))
   A__SEL(s(sel(x0, cons(z0, z1))), cons(x2, x3)) -> c3(A__SEL(a__sel(mark(x0), cons(mark(z0), z1)), mark(x3)), MARK(sel(x0, cons(z0, z1))))
   A__SEL(s(sel(x0, s(z0))), cons(x2, x3)) -> c3(A__SEL(a__sel(mark(x0), s(mark(z0))), mark(x3)), MARK(sel(x0, s(z0))))
   A__SEL(s(sel(x0, 0)), cons(x2, x3)) -> c3(A__SEL(a__sel(mark(x0), 0), mark(x3)), MARK(sel(x0, 0)))
   A__SEL(s(sel(from(z0), x1)), cons(x2, x3)) -> c3(A__SEL(a__sel(a__from(mark(z0)), mark(x1)), mark(x3)), MARK(sel(from(z0), x1)))
   A__SEL(s(sel(sel(z0, z1), x1)), cons(x2, x3)) -> c3(A__SEL(a__sel(a__sel(mark(z0), mark(z1)), mark(x1)), mark(x3)), MARK(sel(sel(z0, z1), x1)))
   A__SEL(s(sel(cons(z0, z1), x1)), cons(x2, x3)) -> c3(A__SEL(a__sel(cons(mark(z0), z1), mark(x1)), mark(x3)), MARK(sel(cons(z0, z1), x1)))
   A__SEL(s(sel(s(z0), x1)), cons(x2, x3)) -> c3(A__SEL(a__sel(s(mark(z0)), mark(x1)), mark(x3)), MARK(sel(s(z0), x1)))
   A__SEL(s(sel(0, x1)), cons(x2, x3)) -> c3(A__SEL(a__sel(0, mark(x1)), mark(x3)), MARK(sel(0, x1)))
   A__SEL(s(sel(x0, x1)), cons(x2, s(z0))) -> c3(MARK(sel(x0, x1)))
   A__SEL(s(sel(x0, x1)), cons(x2, 0)) -> c3(MARK(sel(x0, x1)))
   A__SEL(s(sel(x0, x1)), cons(x2, x3)) -> c3(MARK(sel(x0, x1)))
   A__SEL(s(s(from(z0))), cons(x1, x2)) -> c3(A__SEL(s(a__from(mark(z0))), mark(x2)), MARK(s(from(z0))))
   A__SEL(s(s(sel(z0, z1))), cons(x1, x2)) -> c3(A__SEL(s(a__sel(mark(z0), mark(z1))), mark(x2)), MARK(s(sel(z0, z1))))
   A__SEL(s(s(cons(z0, z1))), cons(x1, x2)) -> c3(A__SEL(s(cons(mark(z0), z1)), mark(x2)), MARK(s(cons(z0, z1))))
   A__SEL(s(s(s(z0))), cons(x1, x2)) -> c3(A__SEL(s(s(mark(z0))), mark(x2)), MARK(s(s(z0))))
   A__SEL(s(s(0)), cons(x1, x2)) -> c3(A__SEL(s(0), mark(x2)), MARK(s(0)))
   A__SEL(s(s(x0)), cons(x1, x2)) -> c3(MARK(s(x0)))
   A__SEL(s(s(x0)), cons(x1, s(z0))) -> c3(MARK(s(x0)))
   A__SEL(s(s(x0)), cons(x1, 0)) -> c3(MARK(s(x0)))
   A__SEL(s(x0), cons(x1, from(x2))) -> c4(A__SEL(mark(x0), cons(mark(mark(x2)), from(s(mark(x2))))), MARK(from(x2)))
   A__SEL(s(x0), cons(x1, from(from(z0)))) -> c4(A__SEL(mark(x0), a__from(a__from(mark(z0)))), MARK(from(from(z0))))
   A__SEL(s(x0), cons(x1, from(sel(z0, z1)))) -> c4(A__SEL(mark(x0), a__from(a__sel(mark(z0), mark(z1)))), MARK(from(sel(z0, z1))))
   A__SEL(s(x0), cons(x1, from(cons(z0, z1)))) -> c4(A__SEL(mark(x0), a__from(cons(mark(z0), z1))), MARK(from(cons(z0, z1))))
   A__SEL(s(x0), cons(x1, from(s(z0)))) -> c4(A__SEL(mark(x0), a__from(s(mark(z0)))), MARK(from(s(z0))))
   A__SEL(s(x0), cons(x1, from(0))) -> c4(A__SEL(mark(x0), a__from(0)), MARK(from(0)))
   A__SEL(s(from(z0)), cons(x1, from(x2))) -> c4(A__SEL(a__from(mark(z0)), a__from(mark(x2))), MARK(from(x2)))
   A__SEL(s(sel(z0, z1)), cons(x1, from(x2))) -> c4(A__SEL(a__sel(mark(z0), mark(z1)), a__from(mark(x2))), MARK(from(x2)))
   A__SEL(s(s(z0)), cons(x1, from(x2))) -> c4(A__SEL(s(mark(z0)), a__from(mark(x2))), MARK(from(x2)))
   A__SEL(s(0), cons(x1, from(x2))) -> c4(A__SEL(0, a__from(mark(x2))), MARK(from(x2)))
   A__SEL(s(x0), cons(x1, from(x2))) -> c4(MARK(from(x2)))
   A__SEL(s(cons(z0, z1)), cons(x1, from(x2))) -> c4(MARK(from(x2)))
   A__SEL(s(x0), cons(x1, sel(x2, from(z0)))) -> c4(A__SEL(mark(x0), a__sel(mark(x2), a__from(mark(z0)))), MARK(sel(x2, from(z0))))
   A__SEL(s(x0), cons(x1, sel(x2, sel(z0, z1)))) -> c4(A__SEL(mark(x0), a__sel(mark(x2), a__sel(mark(z0), mark(z1)))), MARK(sel(x2, sel(z0, z1))))
   A__SEL(s(x0), cons(x1, sel(x2, cons(z0, z1)))) -> c4(A__SEL(mark(x0), a__sel(mark(x2), cons(mark(z0), z1))), MARK(sel(x2, cons(z0, z1))))
   A__SEL(s(x0), cons(x1, sel(x2, s(z0)))) -> c4(A__SEL(mark(x0), a__sel(mark(x2), s(mark(z0)))), MARK(sel(x2, s(z0))))
   A__SEL(s(x0), cons(x1, sel(x2, 0))) -> c4(A__SEL(mark(x0), a__sel(mark(x2), 0)), MARK(sel(x2, 0)))
   A__SEL(s(x0), cons(x1, sel(from(z0), x3))) -> c4(A__SEL(mark(x0), a__sel(a__from(mark(z0)), mark(x3))), MARK(sel(from(z0), x3)))
   A__SEL(s(x0), cons(x1, sel(sel(z0, z1), x3))) -> c4(A__SEL(mark(x0), a__sel(a__sel(mark(z0), mark(z1)), mark(x3))), MARK(sel(sel(z0, z1), x3)))
   A__SEL(s(x0), cons(x1, sel(cons(z0, z1), x3))) -> c4(A__SEL(mark(x0), a__sel(cons(mark(z0), z1), mark(x3))), MARK(sel(cons(z0, z1), x3)))
   A__SEL(s(x0), cons(x1, sel(s(z0), x3))) -> c4(A__SEL(mark(x0), a__sel(s(mark(z0)), mark(x3))), MARK(sel(s(z0), x3)))
   A__SEL(s(x0), cons(x1, sel(0, x3))) -> c4(A__SEL(mark(x0), a__sel(0, mark(x3))), MARK(sel(0, x3)))
   A__SEL(s(from(z0)), cons(x1, sel(x2, x3))) -> c4(A__SEL(a__from(mark(z0)), a__sel(mark(x2), mark(x3))), MARK(sel(x2, x3)))
   A__SEL(s(sel(z0, z1)), cons(x1, sel(x2, x3))) -> c4(A__SEL(a__sel(mark(z0), mark(z1)), a__sel(mark(x2), mark(x3))), MARK(sel(x2, x3)))
   A__SEL(s(s(z0)), cons(x1, sel(x2, x3))) -> c4(A__SEL(s(mark(z0)), a__sel(mark(x2), mark(x3))), MARK(sel(x2, x3)))
   A__SEL(s(0), cons(x1, sel(x2, x3))) -> c4(A__SEL(0, a__sel(mark(x2), mark(x3))), MARK(sel(x2, x3)))
   A__SEL(s(x0), cons(x1, sel(x2, x3))) -> c4(MARK(sel(x2, x3)))
   A__SEL(s(cons(z0, z1)), cons(x1, sel(x2, x3))) -> c4(MARK(sel(x2, x3)))
   A__SEL(s(x0), cons(x1, cons(from(z0), x3))) -> c4(A__SEL(mark(x0), cons(a__from(mark(z0)), x3)), MARK(cons(from(z0), x3)))
   A__SEL(s(x0), cons(x1, cons(sel(z0, z1), x3))) -> c4(A__SEL(mark(x0), cons(a__sel(mark(z0), mark(z1)), x3)), MARK(cons(sel(z0, z1), x3)))
   A__SEL(s(x0), cons(x1, cons(cons(z0, z1), x3))) -> c4(A__SEL(mark(x0), cons(cons(mark(z0), z1), x3)), MARK(cons(cons(z0, z1), x3)))
   A__SEL(s(x0), cons(x1, cons(s(z0), x3))) -> c4(A__SEL(mark(x0), cons(s(mark(z0)), x3)), MARK(cons(s(z0), x3)))
   A__SEL(s(x0), cons(x1, cons(0, x3))) -> c4(A__SEL(mark(x0), cons(0, x3)), MARK(cons(0, x3)))
   A__SEL(s(from(z0)), cons(x1, cons(x2, x3))) -> c4(A__SEL(a__from(mark(z0)), cons(mark(x2), x3)), MARK(cons(x2, x3)))
   A__SEL(s(sel(z0, z1)), cons(x1, cons(x2, x3))) -> c4(A__SEL(a__sel(mark(z0), mark(z1)), cons(mark(x2), x3)), MARK(cons(x2, x3)))
   A__SEL(s(s(z0)), cons(x1, cons(x2, x3))) -> c4(A__SEL(s(mark(z0)), cons(mark(x2), x3)), MARK(cons(x2, x3)))
   A__SEL(s(0), cons(x1, cons(x2, x3))) -> c4(A__SEL(0, cons(mark(x2), x3)), MARK(cons(x2, x3)))
   A__SEL(s(x0), cons(x1, cons(x2, x3))) -> c4(MARK(cons(x2, x3)))
   A__SEL(s(cons(z0, z1)), cons(x1, cons(x2, x3))) -> c4(MARK(cons(x2, x3)))
   A__SEL(s(from(from(z0))), cons(x1, x2)) -> c4(A__SEL(a__from(a__from(mark(z0))), mark(x2)), MARK(x2))
   A__SEL(s(from(sel(z0, z1))), cons(x1, x2)) -> c4(A__SEL(a__from(a__sel(mark(z0), mark(z1))), mark(x2)), MARK(x2))
   A__SEL(s(from(cons(z0, z1))), cons(x1, x2)) -> c4(A__SEL(a__from(cons(mark(z0), z1)), mark(x2)), MARK(x2))
   A__SEL(s(from(s(z0))), cons(x1, x2)) -> c4(A__SEL(a__from(s(mark(z0))), mark(x2)), MARK(x2))
   A__SEL(s(from(0)), cons(x1, x2)) -> c4(A__SEL(a__from(0), mark(x2)), MARK(x2))
   A__SEL(s(from(x0)), cons(x1, s(z0))) -> c4(MARK(s(z0)))
   A__SEL(s(from(x0)), cons(x1, x2)) -> c4(MARK(x2))
   A__SEL(s(sel(x0, from(z0))), cons(x2, x3)) -> c4(A__SEL(a__sel(mark(x0), a__from(mark(z0))), mark(x3)), MARK(x3))
   A__SEL(s(sel(x0, sel(z0, z1))), cons(x2, x3)) -> c4(A__SEL(a__sel(mark(x0), a__sel(mark(z0), mark(z1))), mark(x3)), MARK(x3))
   A__SEL(s(sel(x0, cons(z0, z1))), cons(x2, x3)) -> c4(A__SEL(a__sel(mark(x0), cons(mark(z0), z1)), mark(x3)), MARK(x3))
   A__SEL(s(sel(x0, s(z0))), cons(x2, x3)) -> c4(A__SEL(a__sel(mark(x0), s(mark(z0))), mark(x3)), MARK(x3))
   A__SEL(s(sel(x0, 0)), cons(x2, x3)) -> c4(A__SEL(a__sel(mark(x0), 0), mark(x3)), MARK(x3))
   A__SEL(s(sel(from(z0), x1)), cons(x2, x3)) -> c4(A__SEL(a__sel(a__from(mark(z0)), mark(x1)), mark(x3)), MARK(x3))
   A__SEL(s(sel(sel(z0, z1), x1)), cons(x2, x3)) -> c4(A__SEL(a__sel(a__sel(mark(z0), mark(z1)), mark(x1)), mark(x3)), MARK(x3))
   A__SEL(s(sel(cons(z0, z1), x1)), cons(x2, x3)) -> c4(A__SEL(a__sel(cons(mark(z0), z1), mark(x1)), mark(x3)), MARK(x3))
   A__SEL(s(sel(s(z0), x1)), cons(x2, x3)) -> c4(A__SEL(a__sel(s(mark(z0)), mark(x1)), mark(x3)), MARK(x3))
   A__SEL(s(sel(0, x1)), cons(x2, x3)) -> c4(A__SEL(a__sel(0, mark(x1)), mark(x3)), MARK(x3))
   A__SEL(s(sel(x0, x1)), cons(x2, s(z0))) -> c4(MARK(s(z0)))
   A__SEL(s(sel(x0, x1)), cons(x2, x3)) -> c4(MARK(x3))
   A__SEL(s(s(from(z0))), cons(x1, x2)) -> c4(A__SEL(s(a__from(mark(z0))), mark(x2)), MARK(x2))
   A__SEL(s(s(sel(z0, z1))), cons(x1, x2)) -> c4(A__SEL(s(a__sel(mark(z0), mark(z1))), mark(x2)), MARK(x2))
   A__SEL(s(s(cons(z0, z1))), cons(x1, x2)) -> c4(A__SEL(s(cons(mark(z0), z1)), mark(x2)), MARK(x2))
   A__SEL(s(s(s(z0))), cons(x1, x2)) -> c4(A__SEL(s(s(mark(z0))), mark(x2)), MARK(x2))
   A__SEL(s(s(0)), cons(x1, x2)) -> c4(A__SEL(s(0), mark(x2)), MARK(x2))
   A__SEL(s(s(x0)), cons(x1, s(z0))) -> c4(MARK(s(z0)))
   A__SEL(s(0), cons(x0, s(z0))) -> c4(MARK(s(z0)))
   MARK(sel(x0, from(x1))) -> c7(A__SEL(mark(x0), cons(mark(mark(x1)), from(s(mark(x1))))), MARK(x0))
   MARK(sel(x0, from(from(z0)))) -> c7(A__SEL(mark(x0), a__from(a__from(mark(z0)))), MARK(x0))
   MARK(sel(x0, from(sel(z0, z1)))) -> c7(A__SEL(mark(x0), a__from(a__sel(mark(z0), mark(z1)))), MARK(x0))
   MARK(sel(x0, from(cons(z0, z1)))) -> c7(A__SEL(mark(x0), a__from(cons(mark(z0), z1))), MARK(x0))
   MARK(sel(x0, from(s(z0)))) -> c7(A__SEL(mark(x0), a__from(s(mark(z0)))), MARK(x0))
   MARK(sel(x0, from(0))) -> c7(A__SEL(mark(x0), a__from(0)), MARK(x0))
   MARK(sel(from(z0), from(x1))) -> c7(A__SEL(a__from(mark(z0)), a__from(mark(x1))), MARK(from(z0)))
   MARK(sel(sel(z0, z1), from(x1))) -> c7(A__SEL(a__sel(mark(z0), mark(z1)), a__from(mark(x1))), MARK(sel(z0, z1)))
   MARK(sel(s(z0), from(x1))) -> c7(A__SEL(s(mark(z0)), a__from(mark(x1))), MARK(s(z0)))
   MARK(sel(x0, from(x1))) -> c7(MARK(x0))
   MARK(sel(cons(z0, z1), from(x1))) -> c7(MARK(cons(z0, z1)))
   MARK(sel(0, from(x1))) -> c7(A__SEL(0, a__from(mark(x1))))
   MARK(sel(x0, sel(x1, from(z0)))) -> c7(A__SEL(mark(x0), a__sel(mark(x1), a__from(mark(z0)))), MARK(x0))
   MARK(sel(x0, sel(x1, sel(z0, z1)))) -> c7(A__SEL(mark(x0), a__sel(mark(x1), a__sel(mark(z0), mark(z1)))), MARK(x0))
   MARK(sel(x0, sel(x1, cons(z0, z1)))) -> c7(A__SEL(mark(x0), a__sel(mark(x1), cons(mark(z0), z1))), MARK(x0))
   MARK(sel(x0, sel(x1, s(z0)))) -> c7(A__SEL(mark(x0), a__sel(mark(x1), s(mark(z0)))), MARK(x0))
   MARK(sel(x0, sel(x1, 0))) -> c7(A__SEL(mark(x0), a__sel(mark(x1), 0)), MARK(x0))
   MARK(sel(x0, sel(from(z0), x2))) -> c7(A__SEL(mark(x0), a__sel(a__from(mark(z0)), mark(x2))), MARK(x0))
   MARK(sel(x0, sel(sel(z0, z1), x2))) -> c7(A__SEL(mark(x0), a__sel(a__sel(mark(z0), mark(z1)), mark(x2))), MARK(x0))
   MARK(sel(x0, sel(cons(z0, z1), x2))) -> c7(A__SEL(mark(x0), a__sel(cons(mark(z0), z1), mark(x2))), MARK(x0))
   MARK(sel(x0, sel(s(z0), x2))) -> c7(A__SEL(mark(x0), a__sel(s(mark(z0)), mark(x2))), MARK(x0))
   MARK(sel(x0, sel(0, x2))) -> c7(A__SEL(mark(x0), a__sel(0, mark(x2))), MARK(x0))
   MARK(sel(from(z0), sel(x1, x2))) -> c7(A__SEL(a__from(mark(z0)), a__sel(mark(x1), mark(x2))), MARK(from(z0)))
   MARK(sel(sel(z0, z1), sel(x1, x2))) -> c7(A__SEL(a__sel(mark(z0), mark(z1)), a__sel(mark(x1), mark(x2))), MARK(sel(z0, z1)))
   MARK(sel(s(z0), sel(x1, x2))) -> c7(A__SEL(s(mark(z0)), a__sel(mark(x1), mark(x2))), MARK(s(z0)))
   MARK(sel(x0, sel(x1, x2))) -> c7(MARK(x0))
   MARK(sel(cons(z0, z1), sel(x1, x2))) -> c7(MARK(cons(z0, z1)))
   MARK(sel(0, sel(x1, x2))) -> c7(A__SEL(0, a__sel(mark(x1), mark(x2))))
   MARK(sel(x0, cons(from(z0), x2))) -> c7(A__SEL(mark(x0), cons(a__from(mark(z0)), x2)), MARK(x0))
   MARK(sel(x0, cons(sel(z0, z1), x2))) -> c7(A__SEL(mark(x0), cons(a__sel(mark(z0), mark(z1)), x2)), MARK(x0))
   MARK(sel(x0, cons(cons(z0, z1), x2))) -> c7(A__SEL(mark(x0), cons(cons(mark(z0), z1), x2)), MARK(x0))
   MARK(sel(x0, cons(s(z0), x2))) -> c7(A__SEL(mark(x0), cons(s(mark(z0)), x2)), MARK(x0))
   MARK(sel(x0, cons(0, x2))) -> c7(A__SEL(mark(x0), cons(0, x2)), MARK(x0))
   MARK(sel(from(z0), cons(x1, x2))) -> c7(A__SEL(a__from(mark(z0)), cons(mark(x1), x2)), MARK(from(z0)))
   MARK(sel(sel(z0, z1), cons(x1, x2))) -> c7(A__SEL(a__sel(mark(z0), mark(z1)), cons(mark(x1), x2)), MARK(sel(z0, z1)))
   MARK(sel(s(z0), cons(x1, x2))) -> c7(A__SEL(s(mark(z0)), cons(mark(x1), x2)), MARK(s(z0)))
   MARK(sel(cons(z0, z1), cons(x1, x2))) -> c7(MARK(cons(z0, z1)))
   MARK(sel(0, cons(x1, x2))) -> c7(A__SEL(0, cons(mark(x1), x2)))
   MARK(sel(from(from(z0)), x1)) -> c7(A__SEL(a__from(a__from(mark(z0))), mark(x1)), MARK(from(from(z0))))
   MARK(sel(from(sel(z0, z1)), x1)) -> c7(A__SEL(a__from(a__sel(mark(z0), mark(z1))), mark(x1)), MARK(from(sel(z0, z1))))
   MARK(sel(from(cons(z0, z1)), x1)) -> c7(A__SEL(a__from(cons(mark(z0), z1)), mark(x1)), MARK(from(cons(z0, z1))))
   MARK(sel(from(s(z0)), x1)) -> c7(A__SEL(a__from(s(mark(z0))), mark(x1)), MARK(from(s(z0))))
   MARK(sel(from(0), x1)) -> c7(A__SEL(a__from(0), mark(x1)), MARK(from(0)))
   MARK(sel(from(x0), x1)) -> c7(MARK(from(x0)))
   MARK(sel(from(x0), s(z0))) -> c7(MARK(from(x0)))
   MARK(sel(from(x0), 0)) -> c7(MARK(from(x0)))
   MARK(sel(sel(x0, from(z0)), x2)) -> c7(A__SEL(a__sel(mark(x0), a__from(mark(z0))), mark(x2)), MARK(sel(x0, from(z0))))
   MARK(sel(sel(x0, sel(z0, z1)), x2)) -> c7(A__SEL(a__sel(mark(x0), a__sel(mark(z0), mark(z1))), mark(x2)), MARK(sel(x0, sel(z0, z1))))
   MARK(sel(sel(x0, cons(z0, z1)), x2)) -> c7(A__SEL(a__sel(mark(x0), cons(mark(z0), z1)), mark(x2)), MARK(sel(x0, cons(z0, z1))))
   MARK(sel(sel(x0, s(z0)), x2)) -> c7(A__SEL(a__sel(mark(x0), s(mark(z0))), mark(x2)), MARK(sel(x0, s(z0))))
   MARK(sel(sel(x0, 0), x2)) -> c7(A__SEL(a__sel(mark(x0), 0), mark(x2)), MARK(sel(x0, 0)))
   MARK(sel(sel(from(z0), x1), x2)) -> c7(A__SEL(a__sel(a__from(mark(z0)), mark(x1)), mark(x2)), MARK(sel(from(z0), x1)))
   MARK(sel(sel(sel(z0, z1), x1), x2)) -> c7(A__SEL(a__sel(a__sel(mark(z0), mark(z1)), mark(x1)), mark(x2)), MARK(sel(sel(z0, z1), x1)))
   MARK(sel(sel(cons(z0, z1), x1), x2)) -> c7(A__SEL(a__sel(cons(mark(z0), z1), mark(x1)), mark(x2)), MARK(sel(cons(z0, z1), x1)))
   MARK(sel(sel(s(z0), x1), x2)) -> c7(A__SEL(a__sel(s(mark(z0)), mark(x1)), mark(x2)), MARK(sel(s(z0), x1)))
   MARK(sel(sel(0, x1), x2)) -> c7(A__SEL(a__sel(0, mark(x1)), mark(x2)), MARK(sel(0, x1)))
   MARK(sel(sel(x0, x1), s(z0))) -> c7(MARK(sel(x0, x1)))
   MARK(sel(sel(x0, x1), 0)) -> c7(MARK(sel(x0, x1)))
   MARK(sel(sel(x0, x1), x2)) -> c7(MARK(sel(x0, x1)))
   MARK(sel(s(from(z0)), x1)) -> c7(A__SEL(s(a__from(mark(z0))), mark(x1)), MARK(s(from(z0))))
   MARK(sel(s(sel(z0, z1)), x1)) -> c7(A__SEL(s(a__sel(mark(z0), mark(z1))), mark(x1)), MARK(s(sel(z0, z1))))
   MARK(sel(s(cons(z0, z1)), x1)) -> c7(A__SEL(s(cons(mark(z0), z1)), mark(x1)), MARK(s(cons(z0, z1))))
   MARK(sel(s(s(z0)), x1)) -> c7(A__SEL(s(s(mark(z0))), mark(x1)), MARK(s(s(z0))))
   MARK(sel(s(0), x1)) -> c7(A__SEL(s(0), mark(x1)), MARK(s(0)))
   MARK(sel(s(x0), x1)) -> c7(MARK(s(x0)))
   MARK(sel(s(x0), s(z0))) -> c7(MARK(s(x0)))
   MARK(sel(s(x0), 0)) -> c7(MARK(s(x0)))
   MARK(sel(x0, from(x1))) -> c8(A__SEL(mark(x0), cons(mark(mark(x1)), from(s(mark(x1))))), MARK(from(x1)))
   MARK(sel(x0, from(from(z0)))) -> c8(A__SEL(mark(x0), a__from(a__from(mark(z0)))), MARK(from(from(z0))))
   MARK(sel(x0, from(sel(z0, z1)))) -> c8(A__SEL(mark(x0), a__from(a__sel(mark(z0), mark(z1)))), MARK(from(sel(z0, z1))))
   MARK(sel(x0, from(cons(z0, z1)))) -> c8(A__SEL(mark(x0), a__from(cons(mark(z0), z1))), MARK(from(cons(z0, z1))))
   MARK(sel(x0, from(s(z0)))) -> c8(A__SEL(mark(x0), a__from(s(mark(z0)))), MARK(from(s(z0))))
   MARK(sel(x0, from(0))) -> c8(A__SEL(mark(x0), a__from(0)), MARK(from(0)))
   MARK(sel(from(z0), from(x1))) -> c8(A__SEL(a__from(mark(z0)), a__from(mark(x1))), MARK(from(x1)))
   MARK(sel(sel(z0, z1), from(x1))) -> c8(A__SEL(a__sel(mark(z0), mark(z1)), a__from(mark(x1))), MARK(from(x1)))
   MARK(sel(s(z0), from(x1))) -> c8(A__SEL(s(mark(z0)), a__from(mark(x1))), MARK(from(x1)))
   MARK(sel(0, from(x1))) -> c8(A__SEL(0, a__from(mark(x1))), MARK(from(x1)))
   MARK(sel(x0, from(x1))) -> c8(MARK(from(x1)))
   MARK(sel(cons(z0, z1), from(x1))) -> c8(MARK(from(x1)))
   MARK(sel(x0, sel(x1, from(z0)))) -> c8(A__SEL(mark(x0), a__sel(mark(x1), a__from(mark(z0)))), MARK(sel(x1, from(z0))))
   MARK(sel(x0, sel(x1, sel(z0, z1)))) -> c8(A__SEL(mark(x0), a__sel(mark(x1), a__sel(mark(z0), mark(z1)))), MARK(sel(x1, sel(z0, z1))))
   MARK(sel(x0, sel(x1, cons(z0, z1)))) -> c8(A__SEL(mark(x0), a__sel(mark(x1), cons(mark(z0), z1))), MARK(sel(x1, cons(z0, z1))))
   MARK(sel(x0, sel(x1, s(z0)))) -> c8(A__SEL(mark(x0), a__sel(mark(x1), s(mark(z0)))), MARK(sel(x1, s(z0))))
   MARK(sel(x0, sel(x1, 0))) -> c8(A__SEL(mark(x0), a__sel(mark(x1), 0)), MARK(sel(x1, 0)))
   MARK(sel(x0, sel(from(z0), x2))) -> c8(A__SEL(mark(x0), a__sel(a__from(mark(z0)), mark(x2))), MARK(sel(from(z0), x2)))
   MARK(sel(x0, sel(sel(z0, z1), x2))) -> c8(A__SEL(mark(x0), a__sel(a__sel(mark(z0), mark(z1)), mark(x2))), MARK(sel(sel(z0, z1), x2)))
   MARK(sel(x0, sel(cons(z0, z1), x2))) -> c8(A__SEL(mark(x0), a__sel(cons(mark(z0), z1), mark(x2))), MARK(sel(cons(z0, z1), x2)))
   MARK(sel(x0, sel(s(z0), x2))) -> c8(A__SEL(mark(x0), a__sel(s(mark(z0)), mark(x2))), MARK(sel(s(z0), x2)))
   MARK(sel(x0, sel(0, x2))) -> c8(A__SEL(mark(x0), a__sel(0, mark(x2))), MARK(sel(0, x2)))
   MARK(sel(from(z0), sel(x1, x2))) -> c8(A__SEL(a__from(mark(z0)), a__sel(mark(x1), mark(x2))), MARK(sel(x1, x2)))
   MARK(sel(sel(z0, z1), sel(x1, x2))) -> c8(A__SEL(a__sel(mark(z0), mark(z1)), a__sel(mark(x1), mark(x2))), MARK(sel(x1, x2)))
   MARK(sel(s(z0), sel(x1, x2))) -> c8(A__SEL(s(mark(z0)), a__sel(mark(x1), mark(x2))), MARK(sel(x1, x2)))
   MARK(sel(0, sel(x1, x2))) -> c8(A__SEL(0, a__sel(mark(x1), mark(x2))), MARK(sel(x1, x2)))
   MARK(sel(x0, sel(x1, x2))) -> c8(MARK(sel(x1, x2)))
   MARK(sel(cons(z0, z1), sel(x1, x2))) -> c8(MARK(sel(x1, x2)))
   MARK(sel(x0, cons(from(z0), x2))) -> c8(A__SEL(mark(x0), cons(a__from(mark(z0)), x2)), MARK(cons(from(z0), x2)))
   MARK(sel(x0, cons(sel(z0, z1), x2))) -> c8(A__SEL(mark(x0), cons(a__sel(mark(z0), mark(z1)), x2)), MARK(cons(sel(z0, z1), x2)))
   MARK(sel(x0, cons(cons(z0, z1), x2))) -> c8(A__SEL(mark(x0), cons(cons(mark(z0), z1), x2)), MARK(cons(cons(z0, z1), x2)))
   MARK(sel(x0, cons(s(z0), x2))) -> c8(A__SEL(mark(x0), cons(s(mark(z0)), x2)), MARK(cons(s(z0), x2)))
   MARK(sel(x0, cons(0, x2))) -> c8(A__SEL(mark(x0), cons(0, x2)), MARK(cons(0, x2)))
   MARK(sel(from(z0), cons(x1, x2))) -> c8(A__SEL(a__from(mark(z0)), cons(mark(x1), x2)), MARK(cons(x1, x2)))
   MARK(sel(sel(z0, z1), cons(x1, x2))) -> c8(A__SEL(a__sel(mark(z0), mark(z1)), cons(mark(x1), x2)), MARK(cons(x1, x2)))
   MARK(sel(s(z0), cons(x1, x2))) -> c8(A__SEL(s(mark(z0)), cons(mark(x1), x2)), MARK(cons(x1, x2)))
   MARK(sel(0, cons(x1, x2))) -> c8(A__SEL(0, cons(mark(x1), x2)), MARK(cons(x1, x2)))
   MARK(sel(x0, cons(x1, x2))) -> c8(MARK(cons(x1, x2)))
   MARK(sel(cons(z0, z1), cons(x1, x2))) -> c8(MARK(cons(x1, x2)))
   MARK(sel(from(from(z0)), x1)) -> c8(A__SEL(a__from(a__from(mark(z0))), mark(x1)), MARK(x1))
   MARK(sel(from(sel(z0, z1)), x1)) -> c8(A__SEL(a__from(a__sel(mark(z0), mark(z1))), mark(x1)), MARK(x1))
   MARK(sel(from(cons(z0, z1)), x1)) -> c8(A__SEL(a__from(cons(mark(z0), z1)), mark(x1)), MARK(x1))
   MARK(sel(from(s(z0)), x1)) -> c8(A__SEL(a__from(s(mark(z0))), mark(x1)), MARK(x1))
   MARK(sel(from(0), x1)) -> c8(A__SEL(a__from(0), mark(x1)), MARK(x1))
   MARK(sel(from(x0), s(z0))) -> c8(MARK(s(z0)))
   MARK(sel(from(x0), x1)) -> c8(MARK(x1))
   MARK(sel(sel(x0, from(z0)), x2)) -> c8(A__SEL(a__sel(mark(x0), a__from(mark(z0))), mark(x2)), MARK(x2))
   MARK(sel(sel(x0, sel(z0, z1)), x2)) -> c8(A__SEL(a__sel(mark(x0), a__sel(mark(z0), mark(z1))), mark(x2)), MARK(x2))
   MARK(sel(sel(x0, cons(z0, z1)), x2)) -> c8(A__SEL(a__sel(mark(x0), cons(mark(z0), z1)), mark(x2)), MARK(x2))
   MARK(sel(sel(x0, s(z0)), x2)) -> c8(A__SEL(a__sel(mark(x0), s(mark(z0))), mark(x2)), MARK(x2))
   MARK(sel(sel(x0, 0), x2)) -> c8(A__SEL(a__sel(mark(x0), 0), mark(x2)), MARK(x2))
   MARK(sel(sel(from(z0), x1), x2)) -> c8(A__SEL(a__sel(a__from(mark(z0)), mark(x1)), mark(x2)), MARK(x2))
   MARK(sel(sel(sel(z0, z1), x1), x2)) -> c8(A__SEL(a__sel(a__sel(mark(z0), mark(z1)), mark(x1)), mark(x2)), MARK(x2))
   MARK(sel(sel(cons(z0, z1), x1), x2)) -> c8(A__SEL(a__sel(cons(mark(z0), z1), mark(x1)), mark(x2)), MARK(x2))
   MARK(sel(sel(s(z0), x1), x2)) -> c8(A__SEL(a__sel(s(mark(z0)), mark(x1)), mark(x2)), MARK(x2))
   MARK(sel(sel(0, x1), x2)) -> c8(A__SEL(a__sel(0, mark(x1)), mark(x2)), MARK(x2))
   MARK(sel(sel(x0, x1), s(z0))) -> c8(MARK(s(z0)))
   MARK(sel(sel(x0, x1), x2)) -> c8(MARK(x2))
   MARK(sel(s(from(z0)), x1)) -> c8(A__SEL(s(a__from(mark(z0))), mark(x1)), MARK(x1))
   MARK(sel(s(sel(z0, z1)), x1)) -> c8(A__SEL(s(a__sel(mark(z0), mark(z1))), mark(x1)), MARK(x1))
   MARK(sel(s(cons(z0, z1)), x1)) -> c8(A__SEL(s(cons(mark(z0), z1)), mark(x1)), MARK(x1))
   MARK(sel(s(s(z0)), x1)) -> c8(A__SEL(s(s(mark(z0))), mark(x1)), MARK(x1))
   MARK(sel(s(0), x1)) -> c8(A__SEL(s(0), mark(x1)), MARK(x1))
   MARK(sel(s(x0), s(z0))) -> c8(MARK(s(z0)))
   MARK(sel(0, s(z0))) -> c8(A__SEL(0, s(mark(z0))), MARK(s(z0)))
K tuples:none
Defined Rule Symbols:   a__from_1, a__sel_2, mark_1

Defined Pair Symbols:   A__FROM_1, A__SEL_2, MARK_1

Compound Symbols:   c_1, c2_1, c6_2, c9_1, c10_1, c3_1, c4_1, c7_1, c8_1, c3_2, c4_2, c7_2, c8_2


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

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

(204)
Obligation:
Complexity Dependency Tuples Problem

Rules:
   a__from(z0) -> cons(mark(z0), from(s(z0)))
   a__from(z0) -> from(z0)
   a__sel(0, cons(z0, z1)) -> mark(z0)
   a__sel(s(z0), cons(z1, z2)) -> a__sel(mark(z0), mark(z2))
   a__sel(z0, z1) -> sel(z0, z1)
   mark(from(z0)) -> a__from(mark(z0))
   mark(sel(z0, z1)) -> a__sel(mark(z0), mark(z1))
   mark(cons(z0, z1)) -> cons(mark(z0), z1)
   mark(s(z0)) -> s(mark(z0))
   mark(0) -> 0
Tuples:
   A__FROM(z0) -> c(MARK(z0))
   A__SEL(0, cons(z0, z1)) -> c2(MARK(z0))
   MARK(from(z0)) -> c6(A__FROM(mark(z0)), MARK(z0))
   MARK(cons(z0, z1)) -> c9(MARK(z0))
   MARK(s(z0)) -> c10(MARK(z0))
   A__SEL(s(x0), cons(x1, s(z0))) -> c3(MARK(x0))
   A__SEL(s(x0), cons(x1, 0)) -> c3(MARK(x0))
   A__SEL(s(cons(z0, z1)), cons(x1, x2)) -> c3(MARK(cons(z0, z1)))
   A__SEL(s(x0), cons(x1, s(z0))) -> c4(MARK(s(z0)))
   A__SEL(s(cons(z0, z1)), cons(x1, x2)) -> c4(MARK(x2))
   MARK(sel(x0, s(z0))) -> c7(MARK(x0))
   MARK(sel(x0, 0)) -> c7(MARK(x0))
   MARK(sel(cons(z0, z1), x1)) -> c7(MARK(cons(z0, z1)))
   MARK(sel(x0, s(z0))) -> c8(MARK(s(z0)))
   MARK(sel(cons(z0, z1), x1)) -> c8(MARK(x1))
   A__SEL(s(x0), cons(x1, from(x2))) -> c3(A__SEL(mark(x0), cons(mark(mark(x2)), from(s(mark(x2))))), MARK(x0))
   A__SEL(s(x0), cons(x1, from(from(z0)))) -> c3(A__SEL(mark(x0), a__from(a__from(mark(z0)))), MARK(x0))
   A__SEL(s(x0), cons(x1, from(sel(z0, z1)))) -> c3(A__SEL(mark(x0), a__from(a__sel(mark(z0), mark(z1)))), MARK(x0))
   A__SEL(s(x0), cons(x1, from(cons(z0, z1)))) -> c3(A__SEL(mark(x0), a__from(cons(mark(z0), z1))), MARK(x0))
   A__SEL(s(x0), cons(x1, from(s(z0)))) -> c3(A__SEL(mark(x0), a__from(s(mark(z0)))), MARK(x0))
   A__SEL(s(x0), cons(x1, from(0))) -> c3(A__SEL(mark(x0), a__from(0)), MARK(x0))
   A__SEL(s(from(z0)), cons(x1, from(x2))) -> c3(A__SEL(a__from(mark(z0)), a__from(mark(x2))), MARK(from(z0)))
   A__SEL(s(sel(z0, z1)), cons(x1, from(x2))) -> c3(A__SEL(a__sel(mark(z0), mark(z1)), a__from(mark(x2))), MARK(sel(z0, z1)))
   A__SEL(s(s(z0)), cons(x1, from(x2))) -> c3(A__SEL(s(mark(z0)), a__from(mark(x2))), MARK(s(z0)))
   A__SEL(s(x0), cons(x1, from(x2))) -> c3(MARK(x0))
   A__SEL(s(cons(z0, z1)), cons(x1, from(x2))) -> c3(MARK(cons(z0, z1)))
   A__SEL(s(0), cons(x1, from(x2))) -> c3(A__SEL(0, a__from(mark(x2))))
   A__SEL(s(x0), cons(x1, sel(x2, from(z0)))) -> c3(A__SEL(mark(x0), a__sel(mark(x2), a__from(mark(z0)))), MARK(x0))
   A__SEL(s(x0), cons(x1, sel(x2, sel(z0, z1)))) -> c3(A__SEL(mark(x0), a__sel(mark(x2), a__sel(mark(z0), mark(z1)))), MARK(x0))
   A__SEL(s(x0), cons(x1, sel(x2, cons(z0, z1)))) -> c3(A__SEL(mark(x0), a__sel(mark(x2), cons(mark(z0), z1))), MARK(x0))
   A__SEL(s(x0), cons(x1, sel(x2, s(z0)))) -> c3(A__SEL(mark(x0), a__sel(mark(x2), s(mark(z0)))), MARK(x0))
   A__SEL(s(x0), cons(x1, sel(x2, 0))) -> c3(A__SEL(mark(x0), a__sel(mark(x2), 0)), MARK(x0))
   A__SEL(s(x0), cons(x1, sel(from(z0), x3))) -> c3(A__SEL(mark(x0), a__sel(a__from(mark(z0)), mark(x3))), MARK(x0))
   A__SEL(s(x0), cons(x1, sel(sel(z0, z1), x3))) -> c3(A__SEL(mark(x0), a__sel(a__sel(mark(z0), mark(z1)), mark(x3))), MARK(x0))
   A__SEL(s(x0), cons(x1, sel(cons(z0, z1), x3))) -> c3(A__SEL(mark(x0), a__sel(cons(mark(z0), z1), mark(x3))), MARK(x0))
   A__SEL(s(x0), cons(x1, sel(s(z0), x3))) -> c3(A__SEL(mark(x0), a__sel(s(mark(z0)), mark(x3))), MARK(x0))
   A__SEL(s(x0), cons(x1, sel(0, x3))) -> c3(A__SEL(mark(x0), a__sel(0, mark(x3))), MARK(x0))
   A__SEL(s(from(z0)), cons(x1, sel(x2, x3))) -> c3(A__SEL(a__from(mark(z0)), a__sel(mark(x2), mark(x3))), MARK(from(z0)))
   A__SEL(s(sel(z0, z1)), cons(x1, sel(x2, x3))) -> c3(A__SEL(a__sel(mark(z0), mark(z1)), a__sel(mark(x2), mark(x3))), MARK(sel(z0, z1)))
   A__SEL(s(s(z0)), cons(x1, sel(x2, x3))) -> c3(A__SEL(s(mark(z0)), a__sel(mark(x2), mark(x3))), MARK(s(z0)))
   A__SEL(s(x0), cons(x1, sel(x2, x3))) -> c3(MARK(x0))
   A__SEL(s(cons(z0, z1)), cons(x1, sel(x2, x3))) -> c3(MARK(cons(z0, z1)))
   A__SEL(s(0), cons(x1, sel(x2, x3))) -> c3(A__SEL(0, a__sel(mark(x2), mark(x3))))
   A__SEL(s(x0), cons(x1, cons(from(z0), x3))) -> c3(A__SEL(mark(x0), cons(a__from(mark(z0)), x3)), MARK(x0))
   A__SEL(s(x0), cons(x1, cons(sel(z0, z1), x3))) -> c3(A__SEL(mark(x0), cons(a__sel(mark(z0), mark(z1)), x3)), MARK(x0))
   A__SEL(s(x0), cons(x1, cons(cons(z0, z1), x3))) -> c3(A__SEL(mark(x0), cons(cons(mark(z0), z1), x3)), MARK(x0))
   A__SEL(s(x0), cons(x1, cons(s(z0), x3))) -> c3(A__SEL(mark(x0), cons(s(mark(z0)), x3)), MARK(x0))
   A__SEL(s(x0), cons(x1, cons(0, x3))) -> c3(A__SEL(mark(x0), cons(0, x3)), MARK(x0))
   A__SEL(s(from(z0)), cons(x1, cons(x2, x3))) -> c3(A__SEL(a__from(mark(z0)), cons(mark(x2), x3)), MARK(from(z0)))
   A__SEL(s(sel(z0, z1)), cons(x1, cons(x2, x3))) -> c3(A__SEL(a__sel(mark(z0), mark(z1)), cons(mark(x2), x3)), MARK(sel(z0, z1)))
   A__SEL(s(s(z0)), cons(x1, cons(x2, x3))) -> c3(A__SEL(s(mark(z0)), cons(mark(x2), x3)), MARK(s(z0)))
   A__SEL(s(cons(z0, z1)), cons(x1, cons(x2, x3))) -> c3(MARK(cons(z0, z1)))
   A__SEL(s(0), cons(x1, cons(x2, x3))) -> c3(A__SEL(0, cons(mark(x2), x3)))
   A__SEL(s(from(from(z0))), cons(x1, x2)) -> c3(A__SEL(a__from(a__from(mark(z0))), mark(x2)), MARK(from(from(z0))))
   A__SEL(s(from(sel(z0, z1))), cons(x1, x2)) -> c3(A__SEL(a__from(a__sel(mark(z0), mark(z1))), mark(x2)), MARK(from(sel(z0, z1))))
   A__SEL(s(from(cons(z0, z1))), cons(x1, x2)) -> c3(A__SEL(a__from(cons(mark(z0), z1)), mark(x2)), MARK(from(cons(z0, z1))))
   A__SEL(s(from(s(z0))), cons(x1, x2)) -> c3(A__SEL(a__from(s(mark(z0))), mark(x2)), MARK(from(s(z0))))
   A__SEL(s(from(0)), cons(x1, x2)) -> c3(A__SEL(a__from(0), mark(x2)), MARK(from(0)))
   A__SEL(s(from(x0)), cons(x1, x2)) -> c3(MARK(from(x0)))
   A__SEL(s(from(x0)), cons(x1, s(z0))) -> c3(MARK(from(x0)))
   A__SEL(s(from(x0)), cons(x1, 0)) -> c3(MARK(from(x0)))
   A__SEL(s(sel(x0, from(z0))), cons(x2, x3)) -> c3(A__SEL(a__sel(mark(x0), a__from(mark(z0))), mark(x3)), MARK(sel(x0, from(z0))))
   A__SEL(s(sel(x0, sel(z0, z1))), cons(x2, x3)) -> c3(A__SEL(a__sel(mark(x0), a__sel(mark(z0), mark(z1))), mark(x3)), MARK(sel(x0, sel(z0, z1))))
   A__SEL(s(sel(x0, cons(z0, z1))), cons(x2, x3)) -> c3(A__SEL(a__sel(mark(x0), cons(mark(z0), z1)), mark(x3)), MARK(sel(x0, cons(z0, z1))))
   A__SEL(s(sel(x0, s(z0))), cons(x2, x3)) -> c3(A__SEL(a__sel(mark(x0), s(mark(z0))), mark(x3)), MARK(sel(x0, s(z0))))
   A__SEL(s(sel(x0, 0)), cons(x2, x3)) -> c3(A__SEL(a__sel(mark(x0), 0), mark(x3)), MARK(sel(x0, 0)))
   A__SEL(s(sel(from(z0), x1)), cons(x2, x3)) -> c3(A__SEL(a__sel(a__from(mark(z0)), mark(x1)), mark(x3)), MARK(sel(from(z0), x1)))
   A__SEL(s(sel(sel(z0, z1), x1)), cons(x2, x3)) -> c3(A__SEL(a__sel(a__sel(mark(z0), mark(z1)), mark(x1)), mark(x3)), MARK(sel(sel(z0, z1), x1)))
   A__SEL(s(sel(cons(z0, z1), x1)), cons(x2, x3)) -> c3(A__SEL(a__sel(cons(mark(z0), z1), mark(x1)), mark(x3)), MARK(sel(cons(z0, z1), x1)))
   A__SEL(s(sel(s(z0), x1)), cons(x2, x3)) -> c3(A__SEL(a__sel(s(mark(z0)), mark(x1)), mark(x3)), MARK(sel(s(z0), x1)))
   A__SEL(s(sel(0, x1)), cons(x2, x3)) -> c3(A__SEL(a__sel(0, mark(x1)), mark(x3)), MARK(sel(0, x1)))
   A__SEL(s(sel(x0, x1)), cons(x2, s(z0))) -> c3(MARK(sel(x0, x1)))
   A__SEL(s(sel(x0, x1)), cons(x2, 0)) -> c3(MARK(sel(x0, x1)))
   A__SEL(s(sel(x0, x1)), cons(x2, x3)) -> c3(MARK(sel(x0, x1)))
   A__SEL(s(s(from(z0))), cons(x1, x2)) -> c3(A__SEL(s(a__from(mark(z0))), mark(x2)), MARK(s(from(z0))))
   A__SEL(s(s(sel(z0, z1))), cons(x1, x2)) -> c3(A__SEL(s(a__sel(mark(z0), mark(z1))), mark(x2)), MARK(s(sel(z0, z1))))
   A__SEL(s(s(cons(z0, z1))), cons(x1, x2)) -> c3(A__SEL(s(cons(mark(z0), z1)), mark(x2)), MARK(s(cons(z0, z1))))
   A__SEL(s(s(s(z0))), cons(x1, x2)) -> c3(A__SEL(s(s(mark(z0))), mark(x2)), MARK(s(s(z0))))
   A__SEL(s(s(0)), cons(x1, x2)) -> c3(A__SEL(s(0), mark(x2)), MARK(s(0)))
   A__SEL(s(s(x0)), cons(x1, x2)) -> c3(MARK(s(x0)))
   A__SEL(s(s(x0)), cons(x1, s(z0))) -> c3(MARK(s(x0)))
   A__SEL(s(s(x0)), cons(x1, 0)) -> c3(MARK(s(x0)))
   A__SEL(s(x0), cons(x1, from(x2))) -> c4(A__SEL(mark(x0), cons(mark(mark(x2)), from(s(mark(x2))))), MARK(from(x2)))
   A__SEL(s(x0), cons(x1, from(from(z0)))) -> c4(A__SEL(mark(x0), a__from(a__from(mark(z0)))), MARK(from(from(z0))))
   A__SEL(s(x0), cons(x1, from(sel(z0, z1)))) -> c4(A__SEL(mark(x0), a__from(a__sel(mark(z0), mark(z1)))), MARK(from(sel(z0, z1))))
   A__SEL(s(x0), cons(x1, from(cons(z0, z1)))) -> c4(A__SEL(mark(x0), a__from(cons(mark(z0), z1))), MARK(from(cons(z0, z1))))
   A__SEL(s(x0), cons(x1, from(s(z0)))) -> c4(A__SEL(mark(x0), a__from(s(mark(z0)))), MARK(from(s(z0))))
   A__SEL(s(x0), cons(x1, from(0))) -> c4(A__SEL(mark(x0), a__from(0)), MARK(from(0)))
   A__SEL(s(from(z0)), cons(x1, from(x2))) -> c4(A__SEL(a__from(mark(z0)), a__from(mark(x2))), MARK(from(x2)))
   A__SEL(s(sel(z0, z1)), cons(x1, from(x2))) -> c4(A__SEL(a__sel(mark(z0), mark(z1)), a__from(mark(x2))), MARK(from(x2)))
   A__SEL(s(s(z0)), cons(x1, from(x2))) -> c4(A__SEL(s(mark(z0)), a__from(mark(x2))), MARK(from(x2)))
   A__SEL(s(0), cons(x1, from(x2))) -> c4(A__SEL(0, a__from(mark(x2))), MARK(from(x2)))
   A__SEL(s(x0), cons(x1, from(x2))) -> c4(MARK(from(x2)))
   A__SEL(s(cons(z0, z1)), cons(x1, from(x2))) -> c4(MARK(from(x2)))
   A__SEL(s(x0), cons(x1, sel(x2, from(z0)))) -> c4(A__SEL(mark(x0), a__sel(mark(x2), a__from(mark(z0)))), MARK(sel(x2, from(z0))))
   A__SEL(s(x0), cons(x1, sel(x2, sel(z0, z1)))) -> c4(A__SEL(mark(x0), a__sel(mark(x2), a__sel(mark(z0), mark(z1)))), MARK(sel(x2, sel(z0, z1))))
   A__SEL(s(x0), cons(x1, sel(x2, cons(z0, z1)))) -> c4(A__SEL(mark(x0), a__sel(mark(x2), cons(mark(z0), z1))), MARK(sel(x2, cons(z0, z1))))
   A__SEL(s(x0), cons(x1, sel(x2, s(z0)))) -> c4(A__SEL(mark(x0), a__sel(mark(x2), s(mark(z0)))), MARK(sel(x2, s(z0))))
   A__SEL(s(x0), cons(x1, sel(x2, 0))) -> c4(A__SEL(mark(x0), a__sel(mark(x2), 0)), MARK(sel(x2, 0)))
   A__SEL(s(x0), cons(x1, sel(from(z0), x3))) -> c4(A__SEL(mark(x0), a__sel(a__from(mark(z0)), mark(x3))), MARK(sel(from(z0), x3)))
   A__SEL(s(x0), cons(x1, sel(sel(z0, z1), x3))) -> c4(A__SEL(mark(x0), a__sel(a__sel(mark(z0), mark(z1)), mark(x3))), MARK(sel(sel(z0, z1), x3)))
   A__SEL(s(x0), cons(x1, sel(cons(z0, z1), x3))) -> c4(A__SEL(mark(x0), a__sel(cons(mark(z0), z1), mark(x3))), MARK(sel(cons(z0, z1), x3)))
   A__SEL(s(x0), cons(x1, sel(s(z0), x3))) -> c4(A__SEL(mark(x0), a__sel(s(mark(z0)), mark(x3))), MARK(sel(s(z0), x3)))
   A__SEL(s(x0), cons(x1, sel(0, x3))) -> c4(A__SEL(mark(x0), a__sel(0, mark(x3))), MARK(sel(0, x3)))
   A__SEL(s(from(z0)), cons(x1, sel(x2, x3))) -> c4(A__SEL(a__from(mark(z0)), a__sel(mark(x2), mark(x3))), MARK(sel(x2, x3)))
   A__SEL(s(sel(z0, z1)), cons(x1, sel(x2, x3))) -> c4(A__SEL(a__sel(mark(z0), mark(z1)), a__sel(mark(x2), mark(x3))), MARK(sel(x2, x3)))
   A__SEL(s(s(z0)), cons(x1, sel(x2, x3))) -> c4(A__SEL(s(mark(z0)), a__sel(mark(x2), mark(x3))), MARK(sel(x2, x3)))
   A__SEL(s(0), cons(x1, sel(x2, x3))) -> c4(A__SEL(0, a__sel(mark(x2), mark(x3))), MARK(sel(x2, x3)))
   A__SEL(s(x0), cons(x1, sel(x2, x3))) -> c4(MARK(sel(x2, x3)))
   A__SEL(s(cons(z0, z1)), cons(x1, sel(x2, x3))) -> c4(MARK(sel(x2, x3)))
   A__SEL(s(x0), cons(x1, cons(from(z0), x3))) -> c4(A__SEL(mark(x0), cons(a__from(mark(z0)), x3)), MARK(cons(from(z0), x3)))
   A__SEL(s(x0), cons(x1, cons(sel(z0, z1), x3))) -> c4(A__SEL(mark(x0), cons(a__sel(mark(z0), mark(z1)), x3)), MARK(cons(sel(z0, z1), x3)))
   A__SEL(s(x0), cons(x1, cons(cons(z0, z1), x3))) -> c4(A__SEL(mark(x0), cons(cons(mark(z0), z1), x3)), MARK(cons(cons(z0, z1), x3)))
   A__SEL(s(x0), cons(x1, cons(s(z0), x3))) -> c4(A__SEL(mark(x0), cons(s(mark(z0)), x3)), MARK(cons(s(z0), x3)))
   A__SEL(s(x0), cons(x1, cons(0, x3))) -> c4(A__SEL(mark(x0), cons(0, x3)), MARK(cons(0, x3)))
   A__SEL(s(from(z0)), cons(x1, cons(x2, x3))) -> c4(A__SEL(a__from(mark(z0)), cons(mark(x2), x3)), MARK(cons(x2, x3)))
   A__SEL(s(sel(z0, z1)), cons(x1, cons(x2, x3))) -> c4(A__SEL(a__sel(mark(z0), mark(z1)), cons(mark(x2), x3)), MARK(cons(x2, x3)))
   A__SEL(s(s(z0)), cons(x1, cons(x2, x3))) -> c4(A__SEL(s(mark(z0)), cons(mark(x2), x3)), MARK(cons(x2, x3)))
   A__SEL(s(0), cons(x1, cons(x2, x3))) -> c4(A__SEL(0, cons(mark(x2), x3)), MARK(cons(x2, x3)))
   A__SEL(s(x0), cons(x1, cons(x2, x3))) -> c4(MARK(cons(x2, x3)))
   A__SEL(s(cons(z0, z1)), cons(x1, cons(x2, x3))) -> c4(MARK(cons(x2, x3)))
   A__SEL(s(from(from(z0))), cons(x1, x2)) -> c4(A__SEL(a__from(a__from(mark(z0))), mark(x2)), MARK(x2))
   A__SEL(s(from(sel(z0, z1))), cons(x1, x2)) -> c4(A__SEL(a__from(a__sel(mark(z0), mark(z1))), mark(x2)), MARK(x2))
   A__SEL(s(from(cons(z0, z1))), cons(x1, x2)) -> c4(A__SEL(a__from(cons(mark(z0), z1)), mark(x2)), MARK(x2))
   A__SEL(s(from(s(z0))), cons(x1, x2)) -> c4(A__SEL(a__from(s(mark(z0))), mark(x2)), MARK(x2))
   A__SEL(s(from(0)), cons(x1, x2)) -> c4(A__SEL(a__from(0), mark(x2)), MARK(x2))
   A__SEL(s(from(x0)), cons(x1, s(z0))) -> c4(MARK(s(z0)))
   A__SEL(s(from(x0)), cons(x1, x2)) -> c4(MARK(x2))
   A__SEL(s(sel(x0, from(z0))), cons(x2, x3)) -> c4(A__SEL(a__sel(mark(x0), a__from(mark(z0))), mark(x3)), MARK(x3))
   A__SEL(s(sel(x0, sel(z0, z1))), cons(x2, x3)) -> c4(A__SEL(a__sel(mark(x0), a__sel(mark(z0), mark(z1))), mark(x3)), MARK(x3))
   A__SEL(s(sel(x0, cons(z0, z1))), cons(x2, x3)) -> c4(A__SEL(a__sel(mark(x0), cons(mark(z0), z1)), mark(x3)), MARK(x3))
   A__SEL(s(sel(x0, s(z0))), cons(x2, x3)) -> c4(A__SEL(a__sel(mark(x0), s(mark(z0))), mark(x3)), MARK(x3))
   A__SEL(s(sel(x0, 0)), cons(x2, x3)) -> c4(A__SEL(a__sel(mark(x0), 0), mark(x3)), MARK(x3))
   A__SEL(s(sel(from(z0), x1)), cons(x2, x3)) -> c4(A__SEL(a__sel(a__from(mark(z0)), mark(x1)), mark(x3)), MARK(x3))
   A__SEL(s(sel(sel(z0, z1), x1)), cons(x2, x3)) -> c4(A__SEL(a__sel(a__sel(mark(z0), mark(z1)), mark(x1)), mark(x3)), MARK(x3))
   A__SEL(s(sel(cons(z0, z1), x1)), cons(x2, x3)) -> c4(A__SEL(a__sel(cons(mark(z0), z1), mark(x1)), mark(x3)), MARK(x3))
   A__SEL(s(sel(s(z0), x1)), cons(x2, x3)) -> c4(A__SEL(a__sel(s(mark(z0)), mark(x1)), mark(x3)), MARK(x3))
   A__SEL(s(sel(0, x1)), cons(x2, x3)) -> c4(A__SEL(a__sel(0, mark(x1)), mark(x3)), MARK(x3))
   A__SEL(s(sel(x0, x1)), cons(x2, s(z0))) -> c4(MARK(s(z0)))
   A__SEL(s(sel(x0, x1)), cons(x2, x3)) -> c4(MARK(x3))
   A__SEL(s(s(from(z0))), cons(x1, x2)) -> c4(A__SEL(s(a__from(mark(z0))), mark(x2)), MARK(x2))
   A__SEL(s(s(sel(z0, z1))), cons(x1, x2)) -> c4(A__SEL(s(a__sel(mark(z0), mark(z1))), mark(x2)), MARK(x2))
   A__SEL(s(s(cons(z0, z1))), cons(x1, x2)) -> c4(A__SEL(s(cons(mark(z0), z1)), mark(x2)), MARK(x2))
   A__SEL(s(s(s(z0))), cons(x1, x2)) -> c4(A__SEL(s(s(mark(z0))), mark(x2)), MARK(x2))
   A__SEL(s(s(0)), cons(x1, x2)) -> c4(A__SEL(s(0), mark(x2)), MARK(x2))
   A__SEL(s(s(x0)), cons(x1, s(z0))) -> c4(MARK(s(z0)))
   A__SEL(s(0), cons(x0, s(z0))) -> c4(MARK(s(z0)))
   MARK(sel(x0, from(x1))) -> c7(A__SEL(mark(x0), cons(mark(mark(x1)), from(s(mark(x1))))), MARK(x0))
   MARK(sel(x0, from(from(z0)))) -> c7(A__SEL(mark(x0), a__from(a__from(mark(z0)))), MARK(x0))
   MARK(sel(x0, from(sel(z0, z1)))) -> c7(A__SEL(mark(x0), a__from(a__sel(mark(z0), mark(z1)))), MARK(x0))
   MARK(sel(x0, from(cons(z0, z1)))) -> c7(A__SEL(mark(x0), a__from(cons(mark(z0), z1))), MARK(x0))
   MARK(sel(x0, from(s(z0)))) -> c7(A__SEL(mark(x0), a__from(s(mark(z0)))), MARK(x0))
   MARK(sel(x0, from(0))) -> c7(A__SEL(mark(x0), a__from(0)), MARK(x0))
   MARK(sel(from(z0), from(x1))) -> c7(A__SEL(a__from(mark(z0)), a__from(mark(x1))), MARK(from(z0)))
   MARK(sel(sel(z0, z1), from(x1))) -> c7(A__SEL(a__sel(mark(z0), mark(z1)), a__from(mark(x1))), MARK(sel(z0, z1)))
   MARK(sel(s(z0), from(x1))) -> c7(A__SEL(s(mark(z0)), a__from(mark(x1))), MARK(s(z0)))
   MARK(sel(x0, from(x1))) -> c7(MARK(x0))
   MARK(sel(cons(z0, z1), from(x1))) -> c7(MARK(cons(z0, z1)))
   MARK(sel(0, from(x1))) -> c7(A__SEL(0, a__from(mark(x1))))
   MARK(sel(x0, sel(x1, from(z0)))) -> c7(A__SEL(mark(x0), a__sel(mark(x1), a__from(mark(z0)))), MARK(x0))
   MARK(sel(x0, sel(x1, sel(z0, z1)))) -> c7(A__SEL(mark(x0), a__sel(mark(x1), a__sel(mark(z0), mark(z1)))), MARK(x0))
   MARK(sel(x0, sel(x1, cons(z0, z1)))) -> c7(A__SEL(mark(x0), a__sel(mark(x1), cons(mark(z0), z1))), MARK(x0))
   MARK(sel(x0, sel(x1, s(z0)))) -> c7(A__SEL(mark(x0), a__sel(mark(x1), s(mark(z0)))), MARK(x0))
   MARK(sel(x0, sel(x1, 0))) -> c7(A__SEL(mark(x0), a__sel(mark(x1), 0)), MARK(x0))
   MARK(sel(x0, sel(from(z0), x2))) -> c7(A__SEL(mark(x0), a__sel(a__from(mark(z0)), mark(x2))), MARK(x0))
   MARK(sel(x0, sel(sel(z0, z1), x2))) -> c7(A__SEL(mark(x0), a__sel(a__sel(mark(z0), mark(z1)), mark(x2))), MARK(x0))
   MARK(sel(x0, sel(cons(z0, z1), x2))) -> c7(A__SEL(mark(x0), a__sel(cons(mark(z0), z1), mark(x2))), MARK(x0))
   MARK(sel(x0, sel(s(z0), x2))) -> c7(A__SEL(mark(x0), a__sel(s(mark(z0)), mark(x2))), MARK(x0))
   MARK(sel(x0, sel(0, x2))) -> c7(A__SEL(mark(x0), a__sel(0, mark(x2))), MARK(x0))
   MARK(sel(from(z0), sel(x1, x2))) -> c7(A__SEL(a__from(mark(z0)), a__sel(mark(x1), mark(x2))), MARK(from(z0)))
   MARK(sel(sel(z0, z1), sel(x1, x2))) -> c7(A__SEL(a__sel(mark(z0), mark(z1)), a__sel(mark(x1), mark(x2))), MARK(sel(z0, z1)))
   MARK(sel(s(z0), sel(x1, x2))) -> c7(A__SEL(s(mark(z0)), a__sel(mark(x1), mark(x2))), MARK(s(z0)))
   MARK(sel(x0, sel(x1, x2))) -> c7(MARK(x0))
   MARK(sel(cons(z0, z1), sel(x1, x2))) -> c7(MARK(cons(z0, z1)))
   MARK(sel(0, sel(x1, x2))) -> c7(A__SEL(0, a__sel(mark(x1), mark(x2))))
   MARK(sel(x0, cons(from(z0), x2))) -> c7(A__SEL(mark(x0), cons(a__from(mark(z0)), x2)), MARK(x0))
   MARK(sel(x0, cons(sel(z0, z1), x2))) -> c7(A__SEL(mark(x0), cons(a__sel(mark(z0), mark(z1)), x2)), MARK(x0))
   MARK(sel(x0, cons(cons(z0, z1), x2))) -> c7(A__SEL(mark(x0), cons(cons(mark(z0), z1), x2)), MARK(x0))
   MARK(sel(x0, cons(s(z0), x2))) -> c7(A__SEL(mark(x0), cons(s(mark(z0)), x2)), MARK(x0))
   MARK(sel(x0, cons(0, x2))) -> c7(A__SEL(mark(x0), cons(0, x2)), MARK(x0))
   MARK(sel(from(z0), cons(x1, x2))) -> c7(A__SEL(a__from(mark(z0)), cons(mark(x1), x2)), MARK(from(z0)))
   MARK(sel(sel(z0, z1), cons(x1, x2))) -> c7(A__SEL(a__sel(mark(z0), mark(z1)), cons(mark(x1), x2)), MARK(sel(z0, z1)))
   MARK(sel(s(z0), cons(x1, x2))) -> c7(A__SEL(s(mark(z0)), cons(mark(x1), x2)), MARK(s(z0)))
   MARK(sel(cons(z0, z1), cons(x1, x2))) -> c7(MARK(cons(z0, z1)))
   MARK(sel(0, cons(x1, x2))) -> c7(A__SEL(0, cons(mark(x1), x2)))
   MARK(sel(from(from(z0)), x1)) -> c7(A__SEL(a__from(a__from(mark(z0))), mark(x1)), MARK(from(from(z0))))
   MARK(sel(from(sel(z0, z1)), x1)) -> c7(A__SEL(a__from(a__sel(mark(z0), mark(z1))), mark(x1)), MARK(from(sel(z0, z1))))
   MARK(sel(from(cons(z0, z1)), x1)) -> c7(A__SEL(a__from(cons(mark(z0), z1)), mark(x1)), MARK(from(cons(z0, z1))))
   MARK(sel(from(s(z0)), x1)) -> c7(A__SEL(a__from(s(mark(z0))), mark(x1)), MARK(from(s(z0))))
   MARK(sel(from(0), x1)) -> c7(A__SEL(a__from(0), mark(x1)), MARK(from(0)))
   MARK(sel(from(x0), x1)) -> c7(MARK(from(x0)))
   MARK(sel(from(x0), s(z0))) -> c7(MARK(from(x0)))
   MARK(sel(from(x0), 0)) -> c7(MARK(from(x0)))
   MARK(sel(sel(x0, from(z0)), x2)) -> c7(A__SEL(a__sel(mark(x0), a__from(mark(z0))), mark(x2)), MARK(sel(x0, from(z0))))
   MARK(sel(sel(x0, sel(z0, z1)), x2)) -> c7(A__SEL(a__sel(mark(x0), a__sel(mark(z0), mark(z1))), mark(x2)), MARK(sel(x0, sel(z0, z1))))
   MARK(sel(sel(x0, cons(z0, z1)), x2)) -> c7(A__SEL(a__sel(mark(x0), cons(mark(z0), z1)), mark(x2)), MARK(sel(x0, cons(z0, z1))))
   MARK(sel(sel(x0, s(z0)), x2)) -> c7(A__SEL(a__sel(mark(x0), s(mark(z0))), mark(x2)), MARK(sel(x0, s(z0))))
   MARK(sel(sel(x0, 0), x2)) -> c7(A__SEL(a__sel(mark(x0), 0), mark(x2)), MARK(sel(x0, 0)))
   MARK(sel(sel(from(z0), x1), x2)) -> c7(A__SEL(a__sel(a__from(mark(z0)), mark(x1)), mark(x2)), MARK(sel(from(z0), x1)))
   MARK(sel(sel(sel(z0, z1), x1), x2)) -> c7(A__SEL(a__sel(a__sel(mark(z0), mark(z1)), mark(x1)), mark(x2)), MARK(sel(sel(z0, z1), x1)))
   MARK(sel(sel(cons(z0, z1), x1), x2)) -> c7(A__SEL(a__sel(cons(mark(z0), z1), mark(x1)), mark(x2)), MARK(sel(cons(z0, z1), x1)))
   MARK(sel(sel(s(z0), x1), x2)) -> c7(A__SEL(a__sel(s(mark(z0)), mark(x1)), mark(x2)), MARK(sel(s(z0), x1)))
   MARK(sel(sel(0, x1), x2)) -> c7(A__SEL(a__sel(0, mark(x1)), mark(x2)), MARK(sel(0, x1)))
   MARK(sel(sel(x0, x1), s(z0))) -> c7(MARK(sel(x0, x1)))
   MARK(sel(sel(x0, x1), 0)) -> c7(MARK(sel(x0, x1)))
   MARK(sel(sel(x0, x1), x2)) -> c7(MARK(sel(x0, x1)))
   MARK(sel(s(from(z0)), x1)) -> c7(A__SEL(s(a__from(mark(z0))), mark(x1)), MARK(s(from(z0))))
   MARK(sel(s(sel(z0, z1)), x1)) -> c7(A__SEL(s(a__sel(mark(z0), mark(z1))), mark(x1)), MARK(s(sel(z0, z1))))
   MARK(sel(s(cons(z0, z1)), x1)) -> c7(A__SEL(s(cons(mark(z0), z1)), mark(x1)), MARK(s(cons(z0, z1))))
   MARK(sel(s(s(z0)), x1)) -> c7(A__SEL(s(s(mark(z0))), mark(x1)), MARK(s(s(z0))))
   MARK(sel(s(0), x1)) -> c7(A__SEL(s(0), mark(x1)), MARK(s(0)))
   MARK(sel(s(x0), x1)) -> c7(MARK(s(x0)))
   MARK(sel(s(x0), s(z0))) -> c7(MARK(s(x0)))
   MARK(sel(s(x0), 0)) -> c7(MARK(s(x0)))
   MARK(sel(x0, from(x1))) -> c8(A__SEL(mark(x0), cons(mark(mark(x1)), from(s(mark(x1))))), MARK(from(x1)))
   MARK(sel(x0, from(from(z0)))) -> c8(A__SEL(mark(x0), a__from(a__from(mark(z0)))), MARK(from(from(z0))))
   MARK(sel(x0, from(sel(z0, z1)))) -> c8(A__SEL(mark(x0), a__from(a__sel(mark(z0), mark(z1)))), MARK(from(sel(z0, z1))))
   MARK(sel(x0, from(cons(z0, z1)))) -> c8(A__SEL(mark(x0), a__from(cons(mark(z0), z1))), MARK(from(cons(z0, z1))))
   MARK(sel(x0, from(s(z0)))) -> c8(A__SEL(mark(x0), a__from(s(mark(z0)))), MARK(from(s(z0))))
   MARK(sel(x0, from(0))) -> c8(A__SEL(mark(x0), a__from(0)), MARK(from(0)))
   MARK(sel(from(z0), from(x1))) -> c8(A__SEL(a__from(mark(z0)), a__from(mark(x1))), MARK(from(x1)))
   MARK(sel(sel(z0, z1), from(x1))) -> c8(A__SEL(a__sel(mark(z0), mark(z1)), a__from(mark(x1))), MARK(from(x1)))
   MARK(sel(s(z0), from(x1))) -> c8(A__SEL(s(mark(z0)), a__from(mark(x1))), MARK(from(x1)))
   MARK(sel(0, from(x1))) -> c8(A__SEL(0, a__from(mark(x1))), MARK(from(x1)))
   MARK(sel(x0, from(x1))) -> c8(MARK(from(x1)))
   MARK(sel(cons(z0, z1), from(x1))) -> c8(MARK(from(x1)))
   MARK(sel(x0, sel(x1, from(z0)))) -> c8(A__SEL(mark(x0), a__sel(mark(x1), a__from(mark(z0)))), MARK(sel(x1, from(z0))))
   MARK(sel(x0, sel(x1, sel(z0, z1)))) -> c8(A__SEL(mark(x0), a__sel(mark(x1), a__sel(mark(z0), mark(z1)))), MARK(sel(x1, sel(z0, z1))))
   MARK(sel(x0, sel(x1, cons(z0, z1)))) -> c8(A__SEL(mark(x0), a__sel(mark(x1), cons(mark(z0), z1))), MARK(sel(x1, cons(z0, z1))))
   MARK(sel(x0, sel(x1, s(z0)))) -> c8(A__SEL(mark(x0), a__sel(mark(x1), s(mark(z0)))), MARK(sel(x1, s(z0))))
   MARK(sel(x0, sel(x1, 0))) -> c8(A__SEL(mark(x0), a__sel(mark(x1), 0)), MARK(sel(x1, 0)))
   MARK(sel(x0, sel(from(z0), x2))) -> c8(A__SEL(mark(x0), a__sel(a__from(mark(z0)), mark(x2))), MARK(sel(from(z0), x2)))
   MARK(sel(x0, sel(sel(z0, z1), x2))) -> c8(A__SEL(mark(x0), a__sel(a__sel(mark(z0), mark(z1)), mark(x2))), MARK(sel(sel(z0, z1), x2)))
   MARK(sel(x0, sel(cons(z0, z1), x2))) -> c8(A__SEL(mark(x0), a__sel(cons(mark(z0), z1), mark(x2))), MARK(sel(cons(z0, z1), x2)))
   MARK(sel(x0, sel(s(z0), x2))) -> c8(A__SEL(mark(x0), a__sel(s(mark(z0)), mark(x2))), MARK(sel(s(z0), x2)))
   MARK(sel(x0, sel(0, x2))) -> c8(A__SEL(mark(x0), a__sel(0, mark(x2))), MARK(sel(0, x2)))
   MARK(sel(from(z0), sel(x1, x2))) -> c8(A__SEL(a__from(mark(z0)), a__sel(mark(x1), mark(x2))), MARK(sel(x1, x2)))
   MARK(sel(sel(z0, z1), sel(x1, x2))) -> c8(A__SEL(a__sel(mark(z0), mark(z1)), a__sel(mark(x1), mark(x2))), MARK(sel(x1, x2)))
   MARK(sel(s(z0), sel(x1, x2))) -> c8(A__SEL(s(mark(z0)), a__sel(mark(x1), mark(x2))), MARK(sel(x1, x2)))
   MARK(sel(0, sel(x1, x2))) -> c8(A__SEL(0, a__sel(mark(x1), mark(x2))), MARK(sel(x1, x2)))
   MARK(sel(x0, sel(x1, x2))) -> c8(MARK(sel(x1, x2)))
   MARK(sel(cons(z0, z1), sel(x1, x2))) -> c8(MARK(sel(x1, x2)))
   MARK(sel(x0, cons(from(z0), x2))) -> c8(A__SEL(mark(x0), cons(a__from(mark(z0)), x2)), MARK(cons(from(z0), x2)))
   MARK(sel(x0, cons(sel(z0, z1), x2))) -> c8(A__SEL(mark(x0), cons(a__sel(mark(z0), mark(z1)), x2)), MARK(cons(sel(z0, z1), x2)))
   MARK(sel(x0, cons(cons(z0, z1), x2))) -> c8(A__SEL(mark(x0), cons(cons(mark(z0), z1), x2)), MARK(cons(cons(z0, z1), x2)))
   MARK(sel(x0, cons(s(z0), x2))) -> c8(A__SEL(mark(x0), cons(s(mark(z0)), x2)), MARK(cons(s(z0), x2)))
   MARK(sel(x0, cons(0, x2))) -> c8(A__SEL(mark(x0), cons(0, x2)), MARK(cons(0, x2)))
   MARK(sel(from(z0), cons(x1, x2))) -> c8(A__SEL(a__from(mark(z0)), cons(mark(x1), x2)), MARK(cons(x1, x2)))
   MARK(sel(sel(z0, z1), cons(x1, x2))) -> c8(A__SEL(a__sel(mark(z0), mark(z1)), cons(mark(x1), x2)), MARK(cons(x1, x2)))
   MARK(sel(s(z0), cons(x1, x2))) -> c8(A__SEL(s(mark(z0)), cons(mark(x1), x2)), MARK(cons(x1, x2)))
   MARK(sel(0, cons(x1, x2))) -> c8(A__SEL(0, cons(mark(x1), x2)), MARK(cons(x1, x2)))
   MARK(sel(x0, cons(x1, x2))) -> c8(MARK(cons(x1, x2)))
   MARK(sel(cons(z0, z1), cons(x1, x2))) -> c8(MARK(cons(x1, x2)))
   MARK(sel(from(from(z0)), x1)) -> c8(A__SEL(a__from(a__from(mark(z0))), mark(x1)), MARK(x1))
   MARK(sel(from(sel(z0, z1)), x1)) -> c8(A__SEL(a__from(a__sel(mark(z0), mark(z1))), mark(x1)), MARK(x1))
   MARK(sel(from(cons(z0, z1)), x1)) -> c8(A__SEL(a__from(cons(mark(z0), z1)), mark(x1)), MARK(x1))
   MARK(sel(from(s(z0)), x1)) -> c8(A__SEL(a__from(s(mark(z0))), mark(x1)), MARK(x1))
   MARK(sel(from(0), x1)) -> c8(A__SEL(a__from(0), mark(x1)), MARK(x1))
   MARK(sel(from(x0), s(z0))) -> c8(MARK(s(z0)))
   MARK(sel(from(x0), x1)) -> c8(MARK(x1))
   MARK(sel(sel(x0, from(z0)), x2)) -> c8(A__SEL(a__sel(mark(x0), a__from(mark(z0))), mark(x2)), MARK(x2))
   MARK(sel(sel(x0, sel(z0, z1)), x2)) -> c8(A__SEL(a__sel(mark(x0), a__sel(mark(z0), mark(z1))), mark(x2)), MARK(x2))
   MARK(sel(sel(x0, cons(z0, z1)), x2)) -> c8(A__SEL(a__sel(mark(x0), cons(mark(z0), z1)), mark(x2)), MARK(x2))
   MARK(sel(sel(x0, s(z0)), x2)) -> c8(A__SEL(a__sel(mark(x0), s(mark(z0))), mark(x2)), MARK(x2))
   MARK(sel(sel(x0, 0), x2)) -> c8(A__SEL(a__sel(mark(x0), 0), mark(x2)), MARK(x2))
   MARK(sel(sel(from(z0), x1), x2)) -> c8(A__SEL(a__sel(a__from(mark(z0)), mark(x1)), mark(x2)), MARK(x2))
   MARK(sel(sel(sel(z0, z1), x1), x2)) -> c8(A__SEL(a__sel(a__sel(mark(z0), mark(z1)), mark(x1)), mark(x2)), MARK(x2))
   MARK(sel(sel(cons(z0, z1), x1), x2)) -> c8(A__SEL(a__sel(cons(mark(z0), z1), mark(x1)), mark(x2)), MARK(x2))
   MARK(sel(sel(s(z0), x1), x2)) -> c8(A__SEL(a__sel(s(mark(z0)), mark(x1)), mark(x2)), MARK(x2))
   MARK(sel(sel(0, x1), x2)) -> c8(A__SEL(a__sel(0, mark(x1)), mark(x2)), MARK(x2))
   MARK(sel(sel(x0, x1), s(z0))) -> c8(MARK(s(z0)))
   MARK(sel(sel(x0, x1), x2)) -> c8(MARK(x2))
   MARK(sel(s(from(z0)), x1)) -> c8(A__SEL(s(a__from(mark(z0))), mark(x1)), MARK(x1))
   MARK(sel(s(sel(z0, z1)), x1)) -> c8(A__SEL(s(a__sel(mark(z0), mark(z1))), mark(x1)), MARK(x1))
   MARK(sel(s(cons(z0, z1)), x1)) -> c8(A__SEL(s(cons(mark(z0), z1)), mark(x1)), MARK(x1))
   MARK(sel(s(s(z0)), x1)) -> c8(A__SEL(s(s(mark(z0))), mark(x1)), MARK(x1))
   MARK(sel(s(0), x1)) -> c8(A__SEL(s(0), mark(x1)), MARK(x1))
   MARK(sel(s(x0), s(z0))) -> c8(MARK(s(z0)))
   MARK(sel(0, s(z0))) -> c8(MARK(s(z0)))
S tuples:
   A__FROM(z0) -> c(MARK(z0))
   A__SEL(0, cons(z0, z1)) -> c2(MARK(z0))
   MARK(from(z0)) -> c6(A__FROM(mark(z0)), MARK(z0))
   MARK(cons(z0, z1)) -> c9(MARK(z0))
   MARK(s(z0)) -> c10(MARK(z0))
   A__SEL(s(x0), cons(x1, s(z0))) -> c3(MARK(x0))
   A__SEL(s(x0), cons(x1, 0)) -> c3(MARK(x0))
   A__SEL(s(cons(z0, z1)), cons(x1, x2)) -> c3(MARK(cons(z0, z1)))
   A__SEL(s(x0), cons(x1, s(z0))) -> c4(MARK(s(z0)))
   A__SEL(s(cons(z0, z1)), cons(x1, x2)) -> c4(MARK(x2))
   MARK(sel(x0, s(z0))) -> c7(MARK(x0))
   MARK(sel(x0, 0)) -> c7(MARK(x0))
   MARK(sel(cons(z0, z1), x1)) -> c7(MARK(cons(z0, z1)))
   MARK(sel(x0, s(z0))) -> c8(MARK(s(z0)))
   MARK(sel(cons(z0, z1), x1)) -> c8(MARK(x1))
   A__SEL(s(x0), cons(x1, from(x2))) -> c3(A__SEL(mark(x0), cons(mark(mark(x2)), from(s(mark(x2))))), MARK(x0))
   A__SEL(s(x0), cons(x1, from(from(z0)))) -> c3(A__SEL(mark(x0), a__from(a__from(mark(z0)))), MARK(x0))
   A__SEL(s(x0), cons(x1, from(sel(z0, z1)))) -> c3(A__SEL(mark(x0), a__from(a__sel(mark(z0), mark(z1)))), MARK(x0))
   A__SEL(s(x0), cons(x1, from(cons(z0, z1)))) -> c3(A__SEL(mark(x0), a__from(cons(mark(z0), z1))), MARK(x0))
   A__SEL(s(x0), cons(x1, from(s(z0)))) -> c3(A__SEL(mark(x0), a__from(s(mark(z0)))), MARK(x0))
   A__SEL(s(x0), cons(x1, from(0))) -> c3(A__SEL(mark(x0), a__from(0)), MARK(x0))
   A__SEL(s(from(z0)), cons(x1, from(x2))) -> c3(A__SEL(a__from(mark(z0)), a__from(mark(x2))), MARK(from(z0)))
   A__SEL(s(sel(z0, z1)), cons(x1, from(x2))) -> c3(A__SEL(a__sel(mark(z0), mark(z1)), a__from(mark(x2))), MARK(sel(z0, z1)))
   A__SEL(s(s(z0)), cons(x1, from(x2))) -> c3(A__SEL(s(mark(z0)), a__from(mark(x2))), MARK(s(z0)))
   A__SEL(s(x0), cons(x1, from(x2))) -> c3(MARK(x0))
   A__SEL(s(cons(z0, z1)), cons(x1, from(x2))) -> c3(MARK(cons(z0, z1)))
   A__SEL(s(0), cons(x1, from(x2))) -> c3(A__SEL(0, a__from(mark(x2))))
   A__SEL(s(x0), cons(x1, sel(x2, from(z0)))) -> c3(A__SEL(mark(x0), a__sel(mark(x2), a__from(mark(z0)))), MARK(x0))
   A__SEL(s(x0), cons(x1, sel(x2, sel(z0, z1)))) -> c3(A__SEL(mark(x0), a__sel(mark(x2), a__sel(mark(z0), mark(z1)))), MARK(x0))
   A__SEL(s(x0), cons(x1, sel(x2, cons(z0, z1)))) -> c3(A__SEL(mark(x0), a__sel(mark(x2), cons(mark(z0), z1))), MARK(x0))
   A__SEL(s(x0), cons(x1, sel(x2, s(z0)))) -> c3(A__SEL(mark(x0), a__sel(mark(x2), s(mark(z0)))), MARK(x0))
   A__SEL(s(x0), cons(x1, sel(x2, 0))) -> c3(A__SEL(mark(x0), a__sel(mark(x2), 0)), MARK(x0))
   A__SEL(s(x0), cons(x1, sel(from(z0), x3))) -> c3(A__SEL(mark(x0), a__sel(a__from(mark(z0)), mark(x3))), MARK(x0))
   A__SEL(s(x0), cons(x1, sel(sel(z0, z1), x3))) -> c3(A__SEL(mark(x0), a__sel(a__sel(mark(z0), mark(z1)), mark(x3))), MARK(x0))
   A__SEL(s(x0), cons(x1, sel(cons(z0, z1), x3))) -> c3(A__SEL(mark(x0), a__sel(cons(mark(z0), z1), mark(x3))), MARK(x0))
   A__SEL(s(x0), cons(x1, sel(s(z0), x3))) -> c3(A__SEL(mark(x0), a__sel(s(mark(z0)), mark(x3))), MARK(x0))
   A__SEL(s(x0), cons(x1, sel(0, x3))) -> c3(A__SEL(mark(x0), a__sel(0, mark(x3))), MARK(x0))
   A__SEL(s(from(z0)), cons(x1, sel(x2, x3))) -> c3(A__SEL(a__from(mark(z0)), a__sel(mark(x2), mark(x3))), MARK(from(z0)))
   A__SEL(s(sel(z0, z1)), cons(x1, sel(x2, x3))) -> c3(A__SEL(a__sel(mark(z0), mark(z1)), a__sel(mark(x2), mark(x3))), MARK(sel(z0, z1)))
   A__SEL(s(s(z0)), cons(x1, sel(x2, x3))) -> c3(A__SEL(s(mark(z0)), a__sel(mark(x2), mark(x3))), MARK(s(z0)))
   A__SEL(s(x0), cons(x1, sel(x2, x3))) -> c3(MARK(x0))
   A__SEL(s(cons(z0, z1)), cons(x1, sel(x2, x3))) -> c3(MARK(cons(z0, z1)))
   A__SEL(s(0), cons(x1, sel(x2, x3))) -> c3(A__SEL(0, a__sel(mark(x2), mark(x3))))
   A__SEL(s(x0), cons(x1, cons(from(z0), x3))) -> c3(A__SEL(mark(x0), cons(a__from(mark(z0)), x3)), MARK(x0))
   A__SEL(s(x0), cons(x1, cons(sel(z0, z1), x3))) -> c3(A__SEL(mark(x0), cons(a__sel(mark(z0), mark(z1)), x3)), MARK(x0))
   A__SEL(s(x0), cons(x1, cons(cons(z0, z1), x3))) -> c3(A__SEL(mark(x0), cons(cons(mark(z0), z1), x3)), MARK(x0))
   A__SEL(s(x0), cons(x1, cons(s(z0), x3))) -> c3(A__SEL(mark(x0), cons(s(mark(z0)), x3)), MARK(x0))
   A__SEL(s(x0), cons(x1, cons(0, x3))) -> c3(A__SEL(mark(x0), cons(0, x3)), MARK(x0))
   A__SEL(s(from(z0)), cons(x1, cons(x2, x3))) -> c3(A__SEL(a__from(mark(z0)), cons(mark(x2), x3)), MARK(from(z0)))
   A__SEL(s(sel(z0, z1)), cons(x1, cons(x2, x3))) -> c3(A__SEL(a__sel(mark(z0), mark(z1)), cons(mark(x2), x3)), MARK(sel(z0, z1)))
   A__SEL(s(s(z0)), cons(x1, cons(x2, x3))) -> c3(A__SEL(s(mark(z0)), cons(mark(x2), x3)), MARK(s(z0)))
   A__SEL(s(cons(z0, z1)), cons(x1, cons(x2, x3))) -> c3(MARK(cons(z0, z1)))
   A__SEL(s(0), cons(x1, cons(x2, x3))) -> c3(A__SEL(0, cons(mark(x2), x3)))
   A__SEL(s(from(from(z0))), cons(x1, x2)) -> c3(A__SEL(a__from(a__from(mark(z0))), mark(x2)), MARK(from(from(z0))))
   A__SEL(s(from(sel(z0, z1))), cons(x1, x2)) -> c3(A__SEL(a__from(a__sel(mark(z0), mark(z1))), mark(x2)), MARK(from(sel(z0, z1))))
   A__SEL(s(from(cons(z0, z1))), cons(x1, x2)) -> c3(A__SEL(a__from(cons(mark(z0), z1)), mark(x2)), MARK(from(cons(z0, z1))))
   A__SEL(s(from(s(z0))), cons(x1, x2)) -> c3(A__SEL(a__from(s(mark(z0))), mark(x2)), MARK(from(s(z0))))
   A__SEL(s(from(0)), cons(x1, x2)) -> c3(A__SEL(a__from(0), mark(x2)), MARK(from(0)))
   A__SEL(s(from(x0)), cons(x1, x2)) -> c3(MARK(from(x0)))
   A__SEL(s(from(x0)), cons(x1, s(z0))) -> c3(MARK(from(x0)))
   A__SEL(s(from(x0)), cons(x1, 0)) -> c3(MARK(from(x0)))
   A__SEL(s(sel(x0, from(z0))), cons(x2, x3)) -> c3(A__SEL(a__sel(mark(x0), a__from(mark(z0))), mark(x3)), MARK(sel(x0, from(z0))))
   A__SEL(s(sel(x0, sel(z0, z1))), cons(x2, x3)) -> c3(A__SEL(a__sel(mark(x0), a__sel(mark(z0), mark(z1))), mark(x3)), MARK(sel(x0, sel(z0, z1))))
   A__SEL(s(sel(x0, cons(z0, z1))), cons(x2, x3)) -> c3(A__SEL(a__sel(mark(x0), cons(mark(z0), z1)), mark(x3)), MARK(sel(x0, cons(z0, z1))))
   A__SEL(s(sel(x0, s(z0))), cons(x2, x3)) -> c3(A__SEL(a__sel(mark(x0), s(mark(z0))), mark(x3)), MARK(sel(x0, s(z0))))
   A__SEL(s(sel(x0, 0)), cons(x2, x3)) -> c3(A__SEL(a__sel(mark(x0), 0), mark(x3)), MARK(sel(x0, 0)))
   A__SEL(s(sel(from(z0), x1)), cons(x2, x3)) -> c3(A__SEL(a__sel(a__from(mark(z0)), mark(x1)), mark(x3)), MARK(sel(from(z0), x1)))
   A__SEL(s(sel(sel(z0, z1), x1)), cons(x2, x3)) -> c3(A__SEL(a__sel(a__sel(mark(z0), mark(z1)), mark(x1)), mark(x3)), MARK(sel(sel(z0, z1), x1)))
   A__SEL(s(sel(cons(z0, z1), x1)), cons(x2, x3)) -> c3(A__SEL(a__sel(cons(mark(z0), z1), mark(x1)), mark(x3)), MARK(sel(cons(z0, z1), x1)))
   A__SEL(s(sel(s(z0), x1)), cons(x2, x3)) -> c3(A__SEL(a__sel(s(mark(z0)), mark(x1)), mark(x3)), MARK(sel(s(z0), x1)))
   A__SEL(s(sel(0, x1)), cons(x2, x3)) -> c3(A__SEL(a__sel(0, mark(x1)), mark(x3)), MARK(sel(0, x1)))
   A__SEL(s(sel(x0, x1)), cons(x2, s(z0))) -> c3(MARK(sel(x0, x1)))
   A__SEL(s(sel(x0, x1)), cons(x2, 0)) -> c3(MARK(sel(x0, x1)))
   A__SEL(s(sel(x0, x1)), cons(x2, x3)) -> c3(MARK(sel(x0, x1)))
   A__SEL(s(s(from(z0))), cons(x1, x2)) -> c3(A__SEL(s(a__from(mark(z0))), mark(x2)), MARK(s(from(z0))))
   A__SEL(s(s(sel(z0, z1))), cons(x1, x2)) -> c3(A__SEL(s(a__sel(mark(z0), mark(z1))), mark(x2)), MARK(s(sel(z0, z1))))
   A__SEL(s(s(cons(z0, z1))), cons(x1, x2)) -> c3(A__SEL(s(cons(mark(z0), z1)), mark(x2)), MARK(s(cons(z0, z1))))
   A__SEL(s(s(s(z0))), cons(x1, x2)) -> c3(A__SEL(s(s(mark(z0))), mark(x2)), MARK(s(s(z0))))
   A__SEL(s(s(0)), cons(x1, x2)) -> c3(A__SEL(s(0), mark(x2)), MARK(s(0)))
   A__SEL(s(s(x0)), cons(x1, x2)) -> c3(MARK(s(x0)))
   A__SEL(s(s(x0)), cons(x1, s(z0))) -> c3(MARK(s(x0)))
   A__SEL(s(s(x0)), cons(x1, 0)) -> c3(MARK(s(x0)))
   A__SEL(s(x0), cons(x1, from(x2))) -> c4(A__SEL(mark(x0), cons(mark(mark(x2)), from(s(mark(x2))))), MARK(from(x2)))
   A__SEL(s(x0), cons(x1, from(from(z0)))) -> c4(A__SEL(mark(x0), a__from(a__from(mark(z0)))), MARK(from(from(z0))))
   A__SEL(s(x0), cons(x1, from(sel(z0, z1)))) -> c4(A__SEL(mark(x0), a__from(a__sel(mark(z0), mark(z1)))), MARK(from(sel(z0, z1))))
   A__SEL(s(x0), cons(x1, from(cons(z0, z1)))) -> c4(A__SEL(mark(x0), a__from(cons(mark(z0), z1))), MARK(from(cons(z0, z1))))
   A__SEL(s(x0), cons(x1, from(s(z0)))) -> c4(A__SEL(mark(x0), a__from(s(mark(z0)))), MARK(from(s(z0))))
   A__SEL(s(x0), cons(x1, from(0))) -> c4(A__SEL(mark(x0), a__from(0)), MARK(from(0)))
   A__SEL(s(from(z0)), cons(x1, from(x2))) -> c4(A__SEL(a__from(mark(z0)), a__from(mark(x2))), MARK(from(x2)))
   A__SEL(s(sel(z0, z1)), cons(x1, from(x2))) -> c4(A__SEL(a__sel(mark(z0), mark(z1)), a__from(mark(x2))), MARK(from(x2)))
   A__SEL(s(s(z0)), cons(x1, from(x2))) -> c4(A__SEL(s(mark(z0)), a__from(mark(x2))), MARK(from(x2)))
   A__SEL(s(0), cons(x1, from(x2))) -> c4(A__SEL(0, a__from(mark(x2))), MARK(from(x2)))
   A__SEL(s(x0), cons(x1, from(x2))) -> c4(MARK(from(x2)))
   A__SEL(s(cons(z0, z1)), cons(x1, from(x2))) -> c4(MARK(from(x2)))
   A__SEL(s(x0), cons(x1, sel(x2, from(z0)))) -> c4(A__SEL(mark(x0), a__sel(mark(x2), a__from(mark(z0)))), MARK(sel(x2, from(z0))))
   A__SEL(s(x0), cons(x1, sel(x2, sel(z0, z1)))) -> c4(A__SEL(mark(x0), a__sel(mark(x2), a__sel(mark(z0), mark(z1)))), MARK(sel(x2, sel(z0, z1))))
   A__SEL(s(x0), cons(x1, sel(x2, cons(z0, z1)))) -> c4(A__SEL(mark(x0), a__sel(mark(x2), cons(mark(z0), z1))), MARK(sel(x2, cons(z0, z1))))
   A__SEL(s(x0), cons(x1, sel(x2, s(z0)))) -> c4(A__SEL(mark(x0), a__sel(mark(x2), s(mark(z0)))), MARK(sel(x2, s(z0))))
   A__SEL(s(x0), cons(x1, sel(x2, 0))) -> c4(A__SEL(mark(x0), a__sel(mark(x2), 0)), MARK(sel(x2, 0)))
   A__SEL(s(x0), cons(x1, sel(from(z0), x3))) -> c4(A__SEL(mark(x0), a__sel(a__from(mark(z0)), mark(x3))), MARK(sel(from(z0), x3)))
   A__SEL(s(x0), cons(x1, sel(sel(z0, z1), x3))) -> c4(A__SEL(mark(x0), a__sel(a__sel(mark(z0), mark(z1)), mark(x3))), MARK(sel(sel(z0, z1), x3)))
   A__SEL(s(x0), cons(x1, sel(cons(z0, z1), x3))) -> c4(A__SEL(mark(x0), a__sel(cons(mark(z0), z1), mark(x3))), MARK(sel(cons(z0, z1), x3)))
   A__SEL(s(x0), cons(x1, sel(s(z0), x3))) -> c4(A__SEL(mark(x0), a__sel(s(mark(z0)), mark(x3))), MARK(sel(s(z0), x3)))
   A__SEL(s(x0), cons(x1, sel(0, x3))) -> c4(A__SEL(mark(x0), a__sel(0, mark(x3))), MARK(sel(0, x3)))
   A__SEL(s(from(z0)), cons(x1, sel(x2, x3))) -> c4(A__SEL(a__from(mark(z0)), a__sel(mark(x2), mark(x3))), MARK(sel(x2, x3)))
   A__SEL(s(sel(z0, z1)), cons(x1, sel(x2, x3))) -> c4(A__SEL(a__sel(mark(z0), mark(z1)), a__sel(mark(x2), mark(x3))), MARK(sel(x2, x3)))
   A__SEL(s(s(z0)), cons(x1, sel(x2, x3))) -> c4(A__SEL(s(mark(z0)), a__sel(mark(x2), mark(x3))), MARK(sel(x2, x3)))
   A__SEL(s(0), cons(x1, sel(x2, x3))) -> c4(A__SEL(0, a__sel(mark(x2), mark(x3))), MARK(sel(x2, x3)))
   A__SEL(s(x0), cons(x1, sel(x2, x3))) -> c4(MARK(sel(x2, x3)))
   A__SEL(s(cons(z0, z1)), cons(x1, sel(x2, x3))) -> c4(MARK(sel(x2, x3)))
   A__SEL(s(x0), cons(x1, cons(from(z0), x3))) -> c4(A__SEL(mark(x0), cons(a__from(mark(z0)), x3)), MARK(cons(from(z0), x3)))
   A__SEL(s(x0), cons(x1, cons(sel(z0, z1), x3))) -> c4(A__SEL(mark(x0), cons(a__sel(mark(z0), mark(z1)), x3)), MARK(cons(sel(z0, z1), x3)))
   A__SEL(s(x0), cons(x1, cons(cons(z0, z1), x3))) -> c4(A__SEL(mark(x0), cons(cons(mark(z0), z1), x3)), MARK(cons(cons(z0, z1), x3)))
   A__SEL(s(x0), cons(x1, cons(s(z0), x3))) -> c4(A__SEL(mark(x0), cons(s(mark(z0)), x3)), MARK(cons(s(z0), x3)))
   A__SEL(s(x0), cons(x1, cons(0, x3))) -> c4(A__SEL(mark(x0), cons(0, x3)), MARK(cons(0, x3)))
   A__SEL(s(from(z0)), cons(x1, cons(x2, x3))) -> c4(A__SEL(a__from(mark(z0)), cons(mark(x2), x3)), MARK(cons(x2, x3)))
   A__SEL(s(sel(z0, z1)), cons(x1, cons(x2, x3))) -> c4(A__SEL(a__sel(mark(z0), mark(z1)), cons(mark(x2), x3)), MARK(cons(x2, x3)))
   A__SEL(s(s(z0)), cons(x1, cons(x2, x3))) -> c4(A__SEL(s(mark(z0)), cons(mark(x2), x3)), MARK(cons(x2, x3)))
   A__SEL(s(0), cons(x1, cons(x2, x3))) -> c4(A__SEL(0, cons(mark(x2), x3)), MARK(cons(x2, x3)))
   A__SEL(s(x0), cons(x1, cons(x2, x3))) -> c4(MARK(cons(x2, x3)))
   A__SEL(s(cons(z0, z1)), cons(x1, cons(x2, x3))) -> c4(MARK(cons(x2, x3)))
   A__SEL(s(from(from(z0))), cons(x1, x2)) -> c4(A__SEL(a__from(a__from(mark(z0))), mark(x2)), MARK(x2))
   A__SEL(s(from(sel(z0, z1))), cons(x1, x2)) -> c4(A__SEL(a__from(a__sel(mark(z0), mark(z1))), mark(x2)), MARK(x2))
   A__SEL(s(from(cons(z0, z1))), cons(x1, x2)) -> c4(A__SEL(a__from(cons(mark(z0), z1)), mark(x2)), MARK(x2))
   A__SEL(s(from(s(z0))), cons(x1, x2)) -> c4(A__SEL(a__from(s(mark(z0))), mark(x2)), MARK(x2))
   A__SEL(s(from(0)), cons(x1, x2)) -> c4(A__SEL(a__from(0), mark(x2)), MARK(x2))
   A__SEL(s(from(x0)), cons(x1, s(z0))) -> c4(MARK(s(z0)))
   A__SEL(s(from(x0)), cons(x1, x2)) -> c4(MARK(x2))
   A__SEL(s(sel(x0, from(z0))), cons(x2, x3)) -> c4(A__SEL(a__sel(mark(x0), a__from(mark(z0))), mark(x3)), MARK(x3))
   A__SEL(s(sel(x0, sel(z0, z1))), cons(x2, x3)) -> c4(A__SEL(a__sel(mark(x0), a__sel(mark(z0), mark(z1))), mark(x3)), MARK(x3))
   A__SEL(s(sel(x0, cons(z0, z1))), cons(x2, x3)) -> c4(A__SEL(a__sel(mark(x0), cons(mark(z0), z1)), mark(x3)), MARK(x3))
   A__SEL(s(sel(x0, s(z0))), cons(x2, x3)) -> c4(A__SEL(a__sel(mark(x0), s(mark(z0))), mark(x3)), MARK(x3))
   A__SEL(s(sel(x0, 0)), cons(x2, x3)) -> c4(A__SEL(a__sel(mark(x0), 0), mark(x3)), MARK(x3))
   A__SEL(s(sel(from(z0), x1)), cons(x2, x3)) -> c4(A__SEL(a__sel(a__from(mark(z0)), mark(x1)), mark(x3)), MARK(x3))
   A__SEL(s(sel(sel(z0, z1), x1)), cons(x2, x3)) -> c4(A__SEL(a__sel(a__sel(mark(z0), mark(z1)), mark(x1)), mark(x3)), MARK(x3))
   A__SEL(s(sel(cons(z0, z1), x1)), cons(x2, x3)) -> c4(A__SEL(a__sel(cons(mark(z0), z1), mark(x1)), mark(x3)), MARK(x3))
   A__SEL(s(sel(s(z0), x1)), cons(x2, x3)) -> c4(A__SEL(a__sel(s(mark(z0)), mark(x1)), mark(x3)), MARK(x3))
   A__SEL(s(sel(0, x1)), cons(x2, x3)) -> c4(A__SEL(a__sel(0, mark(x1)), mark(x3)), MARK(x3))
   A__SEL(s(sel(x0, x1)), cons(x2, s(z0))) -> c4(MARK(s(z0)))
   A__SEL(s(sel(x0, x1)), cons(x2, x3)) -> c4(MARK(x3))
   A__SEL(s(s(from(z0))), cons(x1, x2)) -> c4(A__SEL(s(a__from(mark(z0))), mark(x2)), MARK(x2))
   A__SEL(s(s(sel(z0, z1))), cons(x1, x2)) -> c4(A__SEL(s(a__sel(mark(z0), mark(z1))), mark(x2)), MARK(x2))
   A__SEL(s(s(cons(z0, z1))), cons(x1, x2)) -> c4(A__SEL(s(cons(mark(z0), z1)), mark(x2)), MARK(x2))
   A__SEL(s(s(s(z0))), cons(x1, x2)) -> c4(A__SEL(s(s(mark(z0))), mark(x2)), MARK(x2))
   A__SEL(s(s(0)), cons(x1, x2)) -> c4(A__SEL(s(0), mark(x2)), MARK(x2))
   A__SEL(s(s(x0)), cons(x1, s(z0))) -> c4(MARK(s(z0)))
   A__SEL(s(0), cons(x0, s(z0))) -> c4(MARK(s(z0)))
   MARK(sel(x0, from(x1))) -> c7(A__SEL(mark(x0), cons(mark(mark(x1)), from(s(mark(x1))))), MARK(x0))
   MARK(sel(x0, from(from(z0)))) -> c7(A__SEL(mark(x0), a__from(a__from(mark(z0)))), MARK(x0))
   MARK(sel(x0, from(sel(z0, z1)))) -> c7(A__SEL(mark(x0), a__from(a__sel(mark(z0), mark(z1)))), MARK(x0))
   MARK(sel(x0, from(cons(z0, z1)))) -> c7(A__SEL(mark(x0), a__from(cons(mark(z0), z1))), MARK(x0))
   MARK(sel(x0, from(s(z0)))) -> c7(A__SEL(mark(x0), a__from(s(mark(z0)))), MARK(x0))
   MARK(sel(x0, from(0))) -> c7(A__SEL(mark(x0), a__from(0)), MARK(x0))
   MARK(sel(from(z0), from(x1))) -> c7(A__SEL(a__from(mark(z0)), a__from(mark(x1))), MARK(from(z0)))
   MARK(sel(sel(z0, z1), from(x1))) -> c7(A__SEL(a__sel(mark(z0), mark(z1)), a__from(mark(x1))), MARK(sel(z0, z1)))
   MARK(sel(s(z0), from(x1))) -> c7(A__SEL(s(mark(z0)), a__from(mark(x1))), MARK(s(z0)))
   MARK(sel(x0, from(x1))) -> c7(MARK(x0))
   MARK(sel(cons(z0, z1), from(x1))) -> c7(MARK(cons(z0, z1)))
   MARK(sel(0, from(x1))) -> c7(A__SEL(0, a__from(mark(x1))))
   MARK(sel(x0, sel(x1, from(z0)))) -> c7(A__SEL(mark(x0), a__sel(mark(x1), a__from(mark(z0)))), MARK(x0))
   MARK(sel(x0, sel(x1, sel(z0, z1)))) -> c7(A__SEL(mark(x0), a__sel(mark(x1), a__sel(mark(z0), mark(z1)))), MARK(x0))
   MARK(sel(x0, sel(x1, cons(z0, z1)))) -> c7(A__SEL(mark(x0), a__sel(mark(x1), cons(mark(z0), z1))), MARK(x0))
   MARK(sel(x0, sel(x1, s(z0)))) -> c7(A__SEL(mark(x0), a__sel(mark(x1), s(mark(z0)))), MARK(x0))
   MARK(sel(x0, sel(x1, 0))) -> c7(A__SEL(mark(x0), a__sel(mark(x1), 0)), MARK(x0))
   MARK(sel(x0, sel(from(z0), x2))) -> c7(A__SEL(mark(x0), a__sel(a__from(mark(z0)), mark(x2))), MARK(x0))
   MARK(sel(x0, sel(sel(z0, z1), x2))) -> c7(A__SEL(mark(x0), a__sel(a__sel(mark(z0), mark(z1)), mark(x2))), MARK(x0))
   MARK(sel(x0, sel(cons(z0, z1), x2))) -> c7(A__SEL(mark(x0), a__sel(cons(mark(z0), z1), mark(x2))), MARK(x0))
   MARK(sel(x0, sel(s(z0), x2))) -> c7(A__SEL(mark(x0), a__sel(s(mark(z0)), mark(x2))), MARK(x0))
   MARK(sel(x0, sel(0, x2))) -> c7(A__SEL(mark(x0), a__sel(0, mark(x2))), MARK(x0))
   MARK(sel(from(z0), sel(x1, x2))) -> c7(A__SEL(a__from(mark(z0)), a__sel(mark(x1), mark(x2))), MARK(from(z0)))
   MARK(sel(sel(z0, z1), sel(x1, x2))) -> c7(A__SEL(a__sel(mark(z0), mark(z1)), a__sel(mark(x1), mark(x2))), MARK(sel(z0, z1)))
   MARK(sel(s(z0), sel(x1, x2))) -> c7(A__SEL(s(mark(z0)), a__sel(mark(x1), mark(x2))), MARK(s(z0)))
   MARK(sel(x0, sel(x1, x2))) -> c7(MARK(x0))
   MARK(sel(cons(z0, z1), sel(x1, x2))) -> c7(MARK(cons(z0, z1)))
   MARK(sel(0, sel(x1, x2))) -> c7(A__SEL(0, a__sel(mark(x1), mark(x2))))
   MARK(sel(x0, cons(from(z0), x2))) -> c7(A__SEL(mark(x0), cons(a__from(mark(z0)), x2)), MARK(x0))
   MARK(sel(x0, cons(sel(z0, z1), x2))) -> c7(A__SEL(mark(x0), cons(a__sel(mark(z0), mark(z1)), x2)), MARK(x0))
   MARK(sel(x0, cons(cons(z0, z1), x2))) -> c7(A__SEL(mark(x0), cons(cons(mark(z0), z1), x2)), MARK(x0))
   MARK(sel(x0, cons(s(z0), x2))) -> c7(A__SEL(mark(x0), cons(s(mark(z0)), x2)), MARK(x0))
   MARK(sel(x0, cons(0, x2))) -> c7(A__SEL(mark(x0), cons(0, x2)), MARK(x0))
   MARK(sel(from(z0), cons(x1, x2))) -> c7(A__SEL(a__from(mark(z0)), cons(mark(x1), x2)), MARK(from(z0)))
   MARK(sel(sel(z0, z1), cons(x1, x2))) -> c7(A__SEL(a__sel(mark(z0), mark(z1)), cons(mark(x1), x2)), MARK(sel(z0, z1)))
   MARK(sel(s(z0), cons(x1, x2))) -> c7(A__SEL(s(mark(z0)), cons(mark(x1), x2)), MARK(s(z0)))
   MARK(sel(cons(z0, z1), cons(x1, x2))) -> c7(MARK(cons(z0, z1)))
   MARK(sel(0, cons(x1, x2))) -> c7(A__SEL(0, cons(mark(x1), x2)))
   MARK(sel(from(from(z0)), x1)) -> c7(A__SEL(a__from(a__from(mark(z0))), mark(x1)), MARK(from(from(z0))))
   MARK(sel(from(sel(z0, z1)), x1)) -> c7(A__SEL(a__from(a__sel(mark(z0), mark(z1))), mark(x1)), MARK(from(sel(z0, z1))))
   MARK(sel(from(cons(z0, z1)), x1)) -> c7(A__SEL(a__from(cons(mark(z0), z1)), mark(x1)), MARK(from(cons(z0, z1))))
   MARK(sel(from(s(z0)), x1)) -> c7(A__SEL(a__from(s(mark(z0))), mark(x1)), MARK(from(s(z0))))
   MARK(sel(from(0), x1)) -> c7(A__SEL(a__from(0), mark(x1)), MARK(from(0)))
   MARK(sel(from(x0), x1)) -> c7(MARK(from(x0)))
   MARK(sel(from(x0), s(z0))) -> c7(MARK(from(x0)))
   MARK(sel(from(x0), 0)) -> c7(MARK(from(x0)))
   MARK(sel(sel(x0, from(z0)), x2)) -> c7(A__SEL(a__sel(mark(x0), a__from(mark(z0))), mark(x2)), MARK(sel(x0, from(z0))))
   MARK(sel(sel(x0, sel(z0, z1)), x2)) -> c7(A__SEL(a__sel(mark(x0), a__sel(mark(z0), mark(z1))), mark(x2)), MARK(sel(x0, sel(z0, z1))))
   MARK(sel(sel(x0, cons(z0, z1)), x2)) -> c7(A__SEL(a__sel(mark(x0), cons(mark(z0), z1)), mark(x2)), MARK(sel(x0, cons(z0, z1))))
   MARK(sel(sel(x0, s(z0)), x2)) -> c7(A__SEL(a__sel(mark(x0), s(mark(z0))), mark(x2)), MARK(sel(x0, s(z0))))
   MARK(sel(sel(x0, 0), x2)) -> c7(A__SEL(a__sel(mark(x0), 0), mark(x2)), MARK(sel(x0, 0)))
   MARK(sel(sel(from(z0), x1), x2)) -> c7(A__SEL(a__sel(a__from(mark(z0)), mark(x1)), mark(x2)), MARK(sel(from(z0), x1)))
   MARK(sel(sel(sel(z0, z1), x1), x2)) -> c7(A__SEL(a__sel(a__sel(mark(z0), mark(z1)), mark(x1)), mark(x2)), MARK(sel(sel(z0, z1), x1)))
   MARK(sel(sel(cons(z0, z1), x1), x2)) -> c7(A__SEL(a__sel(cons(mark(z0), z1), mark(x1)), mark(x2)), MARK(sel(cons(z0, z1), x1)))
   MARK(sel(sel(s(z0), x1), x2)) -> c7(A__SEL(a__sel(s(mark(z0)), mark(x1)), mark(x2)), MARK(sel(s(z0), x1)))
   MARK(sel(sel(0, x1), x2)) -> c7(A__SEL(a__sel(0, mark(x1)), mark(x2)), MARK(sel(0, x1)))
   MARK(sel(sel(x0, x1), s(z0))) -> c7(MARK(sel(x0, x1)))
   MARK(sel(sel(x0, x1), 0)) -> c7(MARK(sel(x0, x1)))
   MARK(sel(sel(x0, x1), x2)) -> c7(MARK(sel(x0, x1)))
   MARK(sel(s(from(z0)), x1)) -> c7(A__SEL(s(a__from(mark(z0))), mark(x1)), MARK(s(from(z0))))
   MARK(sel(s(sel(z0, z1)), x1)) -> c7(A__SEL(s(a__sel(mark(z0), mark(z1))), mark(x1)), MARK(s(sel(z0, z1))))
   MARK(sel(s(cons(z0, z1)), x1)) -> c7(A__SEL(s(cons(mark(z0), z1)), mark(x1)), MARK(s(cons(z0, z1))))
   MARK(sel(s(s(z0)), x1)) -> c7(A__SEL(s(s(mark(z0))), mark(x1)), MARK(s(s(z0))))
   MARK(sel(s(0), x1)) -> c7(A__SEL(s(0), mark(x1)), MARK(s(0)))
   MARK(sel(s(x0), x1)) -> c7(MARK(s(x0)))
   MARK(sel(s(x0), s(z0))) -> c7(MARK(s(x0)))
   MARK(sel(s(x0), 0)) -> c7(MARK(s(x0)))
   MARK(sel(x0, from(x1))) -> c8(A__SEL(mark(x0), cons(mark(mark(x1)), from(s(mark(x1))))), MARK(from(x1)))
   MARK(sel(x0, from(from(z0)))) -> c8(A__SEL(mark(x0), a__from(a__from(mark(z0)))), MARK(from(from(z0))))
   MARK(sel(x0, from(sel(z0, z1)))) -> c8(A__SEL(mark(x0), a__from(a__sel(mark(z0), mark(z1)))), MARK(from(sel(z0, z1))))
   MARK(sel(x0, from(cons(z0, z1)))) -> c8(A__SEL(mark(x0), a__from(cons(mark(z0), z1))), MARK(from(cons(z0, z1))))
   MARK(sel(x0, from(s(z0)))) -> c8(A__SEL(mark(x0), a__from(s(mark(z0)))), MARK(from(s(z0))))
   MARK(sel(x0, from(0))) -> c8(A__SEL(mark(x0), a__from(0)), MARK(from(0)))
   MARK(sel(from(z0), from(x1))) -> c8(A__SEL(a__from(mark(z0)), a__from(mark(x1))), MARK(from(x1)))
   MARK(sel(sel(z0, z1), from(x1))) -> c8(A__SEL(a__sel(mark(z0), mark(z1)), a__from(mark(x1))), MARK(from(x1)))
   MARK(sel(s(z0), from(x1))) -> c8(A__SEL(s(mark(z0)), a__from(mark(x1))), MARK(from(x1)))
   MARK(sel(0, from(x1))) -> c8(A__SEL(0, a__from(mark(x1))), MARK(from(x1)))
   MARK(sel(x0, from(x1))) -> c8(MARK(from(x1)))
   MARK(sel(cons(z0, z1), from(x1))) -> c8(MARK(from(x1)))
   MARK(sel(x0, sel(x1, from(z0)))) -> c8(A__SEL(mark(x0), a__sel(mark(x1), a__from(mark(z0)))), MARK(sel(x1, from(z0))))
   MARK(sel(x0, sel(x1, sel(z0, z1)))) -> c8(A__SEL(mark(x0), a__sel(mark(x1), a__sel(mark(z0), mark(z1)))), MARK(sel(x1, sel(z0, z1))))
   MARK(sel(x0, sel(x1, cons(z0, z1)))) -> c8(A__SEL(mark(x0), a__sel(mark(x1), cons(mark(z0), z1))), MARK(sel(x1, cons(z0, z1))))
   MARK(sel(x0, sel(x1, s(z0)))) -> c8(A__SEL(mark(x0), a__sel(mark(x1), s(mark(z0)))), MARK(sel(x1, s(z0))))
   MARK(sel(x0, sel(x1, 0))) -> c8(A__SEL(mark(x0), a__sel(mark(x1), 0)), MARK(sel(x1, 0)))
   MARK(sel(x0, sel(from(z0), x2))) -> c8(A__SEL(mark(x0), a__sel(a__from(mark(z0)), mark(x2))), MARK(sel(from(z0), x2)))
   MARK(sel(x0, sel(sel(z0, z1), x2))) -> c8(A__SEL(mark(x0), a__sel(a__sel(mark(z0), mark(z1)), mark(x2))), MARK(sel(sel(z0, z1), x2)))
   MARK(sel(x0, sel(cons(z0, z1), x2))) -> c8(A__SEL(mark(x0), a__sel(cons(mark(z0), z1), mark(x2))), MARK(sel(cons(z0, z1), x2)))
   MARK(sel(x0, sel(s(z0), x2))) -> c8(A__SEL(mark(x0), a__sel(s(mark(z0)), mark(x2))), MARK(sel(s(z0), x2)))
   MARK(sel(x0, sel(0, x2))) -> c8(A__SEL(mark(x0), a__sel(0, mark(x2))), MARK(sel(0, x2)))
   MARK(sel(from(z0), sel(x1, x2))) -> c8(A__SEL(a__from(mark(z0)), a__sel(mark(x1), mark(x2))), MARK(sel(x1, x2)))
   MARK(sel(sel(z0, z1), sel(x1, x2))) -> c8(A__SEL(a__sel(mark(z0), mark(z1)), a__sel(mark(x1), mark(x2))), MARK(sel(x1, x2)))
   MARK(sel(s(z0), sel(x1, x2))) -> c8(A__SEL(s(mark(z0)), a__sel(mark(x1), mark(x2))), MARK(sel(x1, x2)))
   MARK(sel(0, sel(x1, x2))) -> c8(A__SEL(0, a__sel(mark(x1), mark(x2))), MARK(sel(x1, x2)))
   MARK(sel(x0, sel(x1, x2))) -> c8(MARK(sel(x1, x2)))
   MARK(sel(cons(z0, z1), sel(x1, x2))) -> c8(MARK(sel(x1, x2)))
   MARK(sel(x0, cons(from(z0), x2))) -> c8(A__SEL(mark(x0), cons(a__from(mark(z0)), x2)), MARK(cons(from(z0), x2)))
   MARK(sel(x0, cons(sel(z0, z1), x2))) -> c8(A__SEL(mark(x0), cons(a__sel(mark(z0), mark(z1)), x2)), MARK(cons(sel(z0, z1), x2)))
   MARK(sel(x0, cons(cons(z0, z1), x2))) -> c8(A__SEL(mark(x0), cons(cons(mark(z0), z1), x2)), MARK(cons(cons(z0, z1), x2)))
   MARK(sel(x0, cons(s(z0), x2))) -> c8(A__SEL(mark(x0), cons(s(mark(z0)), x2)), MARK(cons(s(z0), x2)))
   MARK(sel(x0, cons(0, x2))) -> c8(A__SEL(mark(x0), cons(0, x2)), MARK(cons(0, x2)))
   MARK(sel(from(z0), cons(x1, x2))) -> c8(A__SEL(a__from(mark(z0)), cons(mark(x1), x2)), MARK(cons(x1, x2)))
   MARK(sel(sel(z0, z1), cons(x1, x2))) -> c8(A__SEL(a__sel(mark(z0), mark(z1)), cons(mark(x1), x2)), MARK(cons(x1, x2)))
   MARK(sel(s(z0), cons(x1, x2))) -> c8(A__SEL(s(mark(z0)), cons(mark(x1), x2)), MARK(cons(x1, x2)))
   MARK(sel(0, cons(x1, x2))) -> c8(A__SEL(0, cons(mark(x1), x2)), MARK(cons(x1, x2)))
   MARK(sel(x0, cons(x1, x2))) -> c8(MARK(cons(x1, x2)))
   MARK(sel(cons(z0, z1), cons(x1, x2))) -> c8(MARK(cons(x1, x2)))
   MARK(sel(from(from(z0)), x1)) -> c8(A__SEL(a__from(a__from(mark(z0))), mark(x1)), MARK(x1))
   MARK(sel(from(sel(z0, z1)), x1)) -> c8(A__SEL(a__from(a__sel(mark(z0), mark(z1))), mark(x1)), MARK(x1))
   MARK(sel(from(cons(z0, z1)), x1)) -> c8(A__SEL(a__from(cons(mark(z0), z1)), mark(x1)), MARK(x1))
   MARK(sel(from(s(z0)), x1)) -> c8(A__SEL(a__from(s(mark(z0))), mark(x1)), MARK(x1))
   MARK(sel(from(0), x1)) -> c8(A__SEL(a__from(0), mark(x1)), MARK(x1))
   MARK(sel(from(x0), s(z0))) -> c8(MARK(s(z0)))
   MARK(sel(from(x0), x1)) -> c8(MARK(x1))
   MARK(sel(sel(x0, from(z0)), x2)) -> c8(A__SEL(a__sel(mark(x0), a__from(mark(z0))), mark(x2)), MARK(x2))
   MARK(sel(sel(x0, sel(z0, z1)), x2)) -> c8(A__SEL(a__sel(mark(x0), a__sel(mark(z0), mark(z1))), mark(x2)), MARK(x2))
   MARK(sel(sel(x0, cons(z0, z1)), x2)) -> c8(A__SEL(a__sel(mark(x0), cons(mark(z0), z1)), mark(x2)), MARK(x2))
   MARK(sel(sel(x0, s(z0)), x2)) -> c8(A__SEL(a__sel(mark(x0), s(mark(z0))), mark(x2)), MARK(x2))
   MARK(sel(sel(x0, 0), x2)) -> c8(A__SEL(a__sel(mark(x0), 0), mark(x2)), MARK(x2))
   MARK(sel(sel(from(z0), x1), x2)) -> c8(A__SEL(a__sel(a__from(mark(z0)), mark(x1)), mark(x2)), MARK(x2))
   MARK(sel(sel(sel(z0, z1), x1), x2)) -> c8(A__SEL(a__sel(a__sel(mark(z0), mark(z1)), mark(x1)), mark(x2)), MARK(x2))
   MARK(sel(sel(cons(z0, z1), x1), x2)) -> c8(A__SEL(a__sel(cons(mark(z0), z1), mark(x1)), mark(x2)), MARK(x2))
   MARK(sel(sel(s(z0), x1), x2)) -> c8(A__SEL(a__sel(s(mark(z0)), mark(x1)), mark(x2)), MARK(x2))
   MARK(sel(sel(0, x1), x2)) -> c8(A__SEL(a__sel(0, mark(x1)), mark(x2)), MARK(x2))
   MARK(sel(sel(x0, x1), s(z0))) -> c8(MARK(s(z0)))
   MARK(sel(sel(x0, x1), x2)) -> c8(MARK(x2))
   MARK(sel(s(from(z0)), x1)) -> c8(A__SEL(s(a__from(mark(z0))), mark(x1)), MARK(x1))
   MARK(sel(s(sel(z0, z1)), x1)) -> c8(A__SEL(s(a__sel(mark(z0), mark(z1))), mark(x1)), MARK(x1))
   MARK(sel(s(cons(z0, z1)), x1)) -> c8(A__SEL(s(cons(mark(z0), z1)), mark(x1)), MARK(x1))
   MARK(sel(s(s(z0)), x1)) -> c8(A__SEL(s(s(mark(z0))), mark(x1)), MARK(x1))
   MARK(sel(s(0), x1)) -> c8(A__SEL(s(0), mark(x1)), MARK(x1))
   MARK(sel(s(x0), s(z0))) -> c8(MARK(s(z0)))
   MARK(sel(0, s(z0))) -> c8(MARK(s(z0)))
K tuples:none
Defined Rule Symbols:   a__from_1, a__sel_2, mark_1

Defined Pair Symbols:   A__FROM_1, A__SEL_2, MARK_1

Compound Symbols:   c_1, c2_1, c6_2, c9_1, c10_1, c3_1, c4_1, c7_1, c8_1, c3_2, c4_2, c7_2, c8_2


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

(205) CdtForwardInstantiationProof (BOTH BOUNDS(ID, ID))
Use forward instantiation to replace A__FROM(z0) -> c(MARK(z0)) by 
   A__FROM(from(y0)) -> c(MARK(from(y0)))
   A__FROM(cons(y0, y1)) -> c(MARK(cons(y0, y1)))
   A__FROM(s(y0)) -> c(MARK(s(y0)))
   A__FROM(sel(y0, s(y1))) -> c(MARK(sel(y0, s(y1))))
   A__FROM(sel(y0, 0)) -> c(MARK(sel(y0, 0)))
   A__FROM(sel(cons(y0, y1), y2)) -> c(MARK(sel(cons(y0, y1), y2)))
   A__FROM(sel(y0, from(y1))) -> c(MARK(sel(y0, from(y1))))
   A__FROM(sel(y0, from(from(y1)))) -> c(MARK(sel(y0, from(from(y1)))))
   A__FROM(sel(y0, from(sel(y1, y2)))) -> c(MARK(sel(y0, from(sel(y1, y2)))))
   A__FROM(sel(y0, from(cons(y1, y2)))) -> c(MARK(sel(y0, from(cons(y1, y2)))))
   A__FROM(sel(y0, from(s(y1)))) -> c(MARK(sel(y0, from(s(y1)))))
   A__FROM(sel(y0, from(0))) -> c(MARK(sel(y0, from(0))))
   A__FROM(sel(from(y0), from(y1))) -> c(MARK(sel(from(y0), from(y1))))
   A__FROM(sel(sel(y0, y1), from(y2))) -> c(MARK(sel(sel(y0, y1), from(y2))))
   A__FROM(sel(s(y0), from(y1))) -> c(MARK(sel(s(y0), from(y1))))
   A__FROM(sel(cons(y0, y1), from(y2))) -> c(MARK(sel(cons(y0, y1), from(y2))))
   A__FROM(sel(0, from(y0))) -> c(MARK(sel(0, from(y0))))
   A__FROM(sel(y0, sel(y1, from(y2)))) -> c(MARK(sel(y0, sel(y1, from(y2)))))
   A__FROM(sel(y0, sel(y1, sel(y2, y3)))) -> c(MARK(sel(y0, sel(y1, sel(y2, y3)))))
   A__FROM(sel(y0, sel(y1, cons(y2, y3)))) -> c(MARK(sel(y0, sel(y1, cons(y2, y3)))))
   A__FROM(sel(y0, sel(y1, s(y2)))) -> c(MARK(sel(y0, sel(y1, s(y2)))))
   A__FROM(sel(y0, sel(y1, 0))) -> c(MARK(sel(y0, sel(y1, 0))))
   A__FROM(sel(y0, sel(from(y1), y2))) -> c(MARK(sel(y0, sel(from(y1), y2))))
   A__FROM(sel(y0, sel(sel(y1, y2), y3))) -> c(MARK(sel(y0, sel(sel(y1, y2), y3))))
   A__FROM(sel(y0, sel(cons(y1, y2), y3))) -> c(MARK(sel(y0, sel(cons(y1, y2), y3))))
   A__FROM(sel(y0, sel(s(y1), y2))) -> c(MARK(sel(y0, sel(s(y1), y2))))
   A__FROM(sel(y0, sel(0, y1))) -> c(MARK(sel(y0, sel(0, y1))))
   A__FROM(sel(from(y0), sel(y1, y2))) -> c(MARK(sel(from(y0), sel(y1, y2))))
   A__FROM(sel(sel(y0, y1), sel(y2, y3))) -> c(MARK(sel(sel(y0, y1), sel(y2, y3))))
   A__FROM(sel(s(y0), sel(y1, y2))) -> c(MARK(sel(s(y0), sel(y1, y2))))
   A__FROM(sel(y0, sel(y1, y2))) -> c(MARK(sel(y0, sel(y1, y2))))
   A__FROM(sel(cons(y0, y1), sel(y2, y3))) -> c(MARK(sel(cons(y0, y1), sel(y2, y3))))
   A__FROM(sel(0, sel(y0, y1))) -> c(MARK(sel(0, sel(y0, y1))))
   A__FROM(sel(y0, cons(from(y1), y2))) -> c(MARK(sel(y0, cons(from(y1), y2))))
   A__FROM(sel(y0, cons(sel(y1, y2), y3))) -> c(MARK(sel(y0, cons(sel(y1, y2), y3))))
   A__FROM(sel(y0, cons(cons(y1, y2), y3))) -> c(MARK(sel(y0, cons(cons(y1, y2), y3))))
   A__FROM(sel(y0, cons(s(y1), y2))) -> c(MARK(sel(y0, cons(s(y1), y2))))
   A__FROM(sel(y0, cons(0, y1))) -> c(MARK(sel(y0, cons(0, y1))))
   A__FROM(sel(from(y0), cons(y1, y2))) -> c(MARK(sel(from(y0), cons(y1, y2))))
   A__FROM(sel(sel(y0, y1), cons(y2, y3))) -> c(MARK(sel(sel(y0, y1), cons(y2, y3))))
   A__FROM(sel(s(y0), cons(y1, y2))) -> c(MARK(sel(s(y0), cons(y1, y2))))
   A__FROM(sel(cons(y0, y1), cons(y2, y3))) -> c(MARK(sel(cons(y0, y1), cons(y2, y3))))
   A__FROM(sel(0, cons(y0, y1))) -> c(MARK(sel(0, cons(y0, y1))))
   A__FROM(sel(from(from(y0)), y1)) -> c(MARK(sel(from(from(y0)), y1)))
   A__FROM(sel(from(sel(y0, y1)), y2)) -> c(MARK(sel(from(sel(y0, y1)), y2)))
   A__FROM(sel(from(cons(y0, y1)), y2)) -> c(MARK(sel(from(cons(y0, y1)), y2)))
   A__FROM(sel(from(s(y0)), y1)) -> c(MARK(sel(from(s(y0)), y1)))
   A__FROM(sel(from(0), y0)) -> c(MARK(sel(from(0), y0)))
   A__FROM(sel(from(y0), y1)) -> c(MARK(sel(from(y0), y1)))
   A__FROM(sel(from(y0), s(y1))) -> c(MARK(sel(from(y0), s(y1))))
   A__FROM(sel(from(y0), 0)) -> c(MARK(sel(from(y0), 0)))
   A__FROM(sel(sel(y0, from(y1)), y2)) -> c(MARK(sel(sel(y0, from(y1)), y2)))
   A__FROM(sel(sel(y0, sel(y1, y2)), y3)) -> c(MARK(sel(sel(y0, sel(y1, y2)), y3)))
   A__FROM(sel(sel(y0, cons(y1, y2)), y3)) -> c(MARK(sel(sel(y0, cons(y1, y2)), y3)))
   A__FROM(sel(sel(y0, s(y1)), y2)) -> c(MARK(sel(sel(y0, s(y1)), y2)))
   A__FROM(sel(sel(y0, 0), y1)) -> c(MARK(sel(sel(y0, 0), y1)))
   A__FROM(sel(sel(from(y0), y1), y2)) -> c(MARK(sel(sel(from(y0), y1), y2)))
   A__FROM(sel(sel(sel(y0, y1), y2), y3)) -> c(MARK(sel(sel(sel(y0, y1), y2), y3)))
   A__FROM(sel(sel(cons(y0, y1), y2), y3)) -> c(MARK(sel(sel(cons(y0, y1), y2), y3)))
   A__FROM(sel(sel(s(y0), y1), y2)) -> c(MARK(sel(sel(s(y0), y1), y2)))
   A__FROM(sel(sel(0, y0), y1)) -> c(MARK(sel(sel(0, y0), y1)))
   A__FROM(sel(sel(y0, y1), s(y2))) -> c(MARK(sel(sel(y0, y1), s(y2))))
   A__FROM(sel(sel(y0, y1), 0)) -> c(MARK(sel(sel(y0, y1), 0)))
   A__FROM(sel(sel(y0, y1), y2)) -> c(MARK(sel(sel(y0, y1), y2)))
   A__FROM(sel(s(from(y0)), y1)) -> c(MARK(sel(s(from(y0)), y1)))
   A__FROM(sel(s(sel(y0, y1)), y2)) -> c(MARK(sel(s(sel(y0, y1)), y2)))
   A__FROM(sel(s(cons(y0, y1)), y2)) -> c(MARK(sel(s(cons(y0, y1)), y2)))
   A__FROM(sel(s(s(y0)), y1)) -> c(MARK(sel(s(s(y0)), y1)))
   A__FROM(sel(s(0), y0)) -> c(MARK(sel(s(0), y0)))
   A__FROM(sel(s(y0), y1)) -> c(MARK(sel(s(y0), y1)))
   A__FROM(sel(s(y0), s(y1))) -> c(MARK(sel(s(y0), s(y1))))
   A__FROM(sel(s(y0), 0)) -> c(MARK(sel(s(y0), 0)))
   A__FROM(sel(y0, cons(y1, y2))) -> c(MARK(sel(y0, cons(y1, y2))))
   A__FROM(sel(0, s(y0))) -> c(MARK(sel(0, s(y0))))

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

(206)
Obligation:
Complexity Dependency Tuples Problem

Rules:
   a__from(z0) -> cons(mark(z0), from(s(z0)))
   a__from(z0) -> from(z0)
   a__sel(0, cons(z0, z1)) -> mark(z0)
   a__sel(s(z0), cons(z1, z2)) -> a__sel(mark(z0), mark(z2))
   a__sel(z0, z1) -> sel(z0, z1)
   mark(from(z0)) -> a__from(mark(z0))
   mark(sel(z0, z1)) -> a__sel(mark(z0), mark(z1))
   mark(cons(z0, z1)) -> cons(mark(z0), z1)
   mark(s(z0)) -> s(mark(z0))
   mark(0) -> 0
Tuples:
   A__SEL(0, cons(z0, z1)) -> c2(MARK(z0))
   MARK(from(z0)) -> c6(A__FROM(mark(z0)), MARK(z0))
   MARK(cons(z0, z1)) -> c9(MARK(z0))
   MARK(s(z0)) -> c10(MARK(z0))
   A__SEL(s(x0), cons(x1, s(z0))) -> c3(MARK(x0))
   A__SEL(s(x0), cons(x1, 0)) -> c3(MARK(x0))
   A__SEL(s(cons(z0, z1)), cons(x1, x2)) -> c3(MARK(cons(z0, z1)))
   A__SEL(s(x0), cons(x1, s(z0))) -> c4(MARK(s(z0)))
   A__SEL(s(cons(z0, z1)), cons(x1, x2)) -> c4(MARK(x2))
   MARK(sel(x0, s(z0))) -> c7(MARK(x0))
   MARK(sel(x0, 0)) -> c7(MARK(x0))
   MARK(sel(cons(z0, z1), x1)) -> c7(MARK(cons(z0, z1)))
   MARK(sel(x0, s(z0))) -> c8(MARK(s(z0)))
   MARK(sel(cons(z0, z1), x1)) -> c8(MARK(x1))
   A__SEL(s(x0), cons(x1, from(x2))) -> c3(A__SEL(mark(x0), cons(mark(mark(x2)), from(s(mark(x2))))), MARK(x0))
   A__SEL(s(x0), cons(x1, from(from(z0)))) -> c3(A__SEL(mark(x0), a__from(a__from(mark(z0)))), MARK(x0))
   A__SEL(s(x0), cons(x1, from(sel(z0, z1)))) -> c3(A__SEL(mark(x0), a__from(a__sel(mark(z0), mark(z1)))), MARK(x0))
   A__SEL(s(x0), cons(x1, from(cons(z0, z1)))) -> c3(A__SEL(mark(x0), a__from(cons(mark(z0), z1))), MARK(x0))
   A__SEL(s(x0), cons(x1, from(s(z0)))) -> c3(A__SEL(mark(x0), a__from(s(mark(z0)))), MARK(x0))
   A__SEL(s(x0), cons(x1, from(0))) -> c3(A__SEL(mark(x0), a__from(0)), MARK(x0))
   A__SEL(s(from(z0)), cons(x1, from(x2))) -> c3(A__SEL(a__from(mark(z0)), a__from(mark(x2))), MARK(from(z0)))
   A__SEL(s(sel(z0, z1)), cons(x1, from(x2))) -> c3(A__SEL(a__sel(mark(z0), mark(z1)), a__from(mark(x2))), MARK(sel(z0, z1)))
   A__SEL(s(s(z0)), cons(x1, from(x2))) -> c3(A__SEL(s(mark(z0)), a__from(mark(x2))), MARK(s(z0)))
   A__SEL(s(x0), cons(x1, from(x2))) -> c3(MARK(x0))
   A__SEL(s(cons(z0, z1)), cons(x1, from(x2))) -> c3(MARK(cons(z0, z1)))
   A__SEL(s(0), cons(x1, from(x2))) -> c3(A__SEL(0, a__from(mark(x2))))
   A__SEL(s(x0), cons(x1, sel(x2, from(z0)))) -> c3(A__SEL(mark(x0), a__sel(mark(x2), a__from(mark(z0)))), MARK(x0))
   A__SEL(s(x0), cons(x1, sel(x2, sel(z0, z1)))) -> c3(A__SEL(mark(x0), a__sel(mark(x2), a__sel(mark(z0), mark(z1)))), MARK(x0))
   A__SEL(s(x0), cons(x1, sel(x2, cons(z0, z1)))) -> c3(A__SEL(mark(x0), a__sel(mark(x2), cons(mark(z0), z1))), MARK(x0))
   A__SEL(s(x0), cons(x1, sel(x2, s(z0)))) -> c3(A__SEL(mark(x0), a__sel(mark(x2), s(mark(z0)))), MARK(x0))
   A__SEL(s(x0), cons(x1, sel(x2, 0))) -> c3(A__SEL(mark(x0), a__sel(mark(x2), 0)), MARK(x0))
   A__SEL(s(x0), cons(x1, sel(from(z0), x3))) -> c3(A__SEL(mark(x0), a__sel(a__from(mark(z0)), mark(x3))), MARK(x0))
   A__SEL(s(x0), cons(x1, sel(sel(z0, z1), x3))) -> c3(A__SEL(mark(x0), a__sel(a__sel(mark(z0), mark(z1)), mark(x3))), MARK(x0))
   A__SEL(s(x0), cons(x1, sel(cons(z0, z1), x3))) -> c3(A__SEL(mark(x0), a__sel(cons(mark(z0), z1), mark(x3))), MARK(x0))
   A__SEL(s(x0), cons(x1, sel(s(z0), x3))) -> c3(A__SEL(mark(x0), a__sel(s(mark(z0)), mark(x3))), MARK(x0))
   A__SEL(s(x0), cons(x1, sel(0, x3))) -> c3(A__SEL(mark(x0), a__sel(0, mark(x3))), MARK(x0))
   A__SEL(s(from(z0)), cons(x1, sel(x2, x3))) -> c3(A__SEL(a__from(mark(z0)), a__sel(mark(x2), mark(x3))), MARK(from(z0)))
   A__SEL(s(sel(z0, z1)), cons(x1, sel(x2, x3))) -> c3(A__SEL(a__sel(mark(z0), mark(z1)), a__sel(mark(x2), mark(x3))), MARK(sel(z0, z1)))
   A__SEL(s(s(z0)), cons(x1, sel(x2, x3))) -> c3(A__SEL(s(mark(z0)), a__sel(mark(x2), mark(x3))), MARK(s(z0)))
   A__SEL(s(x0), cons(x1, sel(x2, x3))) -> c3(MARK(x0))
   A__SEL(s(cons(z0, z1)), cons(x1, sel(x2, x3))) -> c3(MARK(cons(z0, z1)))
   A__SEL(s(0), cons(x1, sel(x2, x3))) -> c3(A__SEL(0, a__sel(mark(x2), mark(x3))))
   A__SEL(s(x0), cons(x1, cons(from(z0), x3))) -> c3(A__SEL(mark(x0), cons(a__from(mark(z0)), x3)), MARK(x0))
   A__SEL(s(x0), cons(x1, cons(sel(z0, z1), x3))) -> c3(A__SEL(mark(x0), cons(a__sel(mark(z0), mark(z1)), x3)), MARK(x0))
   A__SEL(s(x0), cons(x1, cons(cons(z0, z1), x3))) -> c3(A__SEL(mark(x0), cons(cons(mark(z0), z1), x3)), MARK(x0))
   A__SEL(s(x0), cons(x1, cons(s(z0), x3))) -> c3(A__SEL(mark(x0), cons(s(mark(z0)), x3)), MARK(x0))
   A__SEL(s(x0), cons(x1, cons(0, x3))) -> c3(A__SEL(mark(x0), cons(0, x3)), MARK(x0))
   A__SEL(s(from(z0)), cons(x1, cons(x2, x3))) -> c3(A__SEL(a__from(mark(z0)), cons(mark(x2), x3)), MARK(from(z0)))
   A__SEL(s(sel(z0, z1)), cons(x1, cons(x2, x3))) -> c3(A__SEL(a__sel(mark(z0), mark(z1)), cons(mark(x2), x3)), MARK(sel(z0, z1)))
   A__SEL(s(s(z0)), cons(x1, cons(x2, x3))) -> c3(A__SEL(s(mark(z0)), cons(mark(x2), x3)), MARK(s(z0)))
   A__SEL(s(cons(z0, z1)), cons(x1, cons(x2, x3))) -> c3(MARK(cons(z0, z1)))
   A__SEL(s(0), cons(x1, cons(x2, x3))) -> c3(A__SEL(0, cons(mark(x2), x3)))
   A__SEL(s(from(from(z0))), cons(x1, x2)) -> c3(A__SEL(a__from(a__from(mark(z0))), mark(x2)), MARK(from(from(z0))))
   A__SEL(s(from(sel(z0, z1))), cons(x1, x2)) -> c3(A__SEL(a__from(a__sel(mark(z0), mark(z1))), mark(x2)), MARK(from(sel(z0, z1))))
   A__SEL(s(from(cons(z0, z1))), cons(x1, x2)) -> c3(A__SEL(a__from(cons(mark(z0), z1)), mark(x2)), MARK(from(cons(z0, z1))))
   A__SEL(s(from(s(z0))), cons(x1, x2)) -> c3(A__SEL(a__from(s(mark(z0))), mark(x2)), MARK(from(s(z0))))
   A__SEL(s(from(0)), cons(x1, x2)) -> c3(A__SEL(a__from(0), mark(x2)), MARK(from(0)))
   A__SEL(s(from(x0)), cons(x1, x2)) -> c3(MARK(from(x0)))
   A__SEL(s(from(x0)), cons(x1, s(z0))) -> c3(MARK(from(x0)))
   A__SEL(s(from(x0)), cons(x1, 0)) -> c3(MARK(from(x0)))
   A__SEL(s(sel(x0, from(z0))), cons(x2, x3)) -> c3(A__SEL(a__sel(mark(x0), a__from(mark(z0))), mark(x3)), MARK(sel(x0, from(z0))))
   A__SEL(s(sel(x0, sel(z0, z1))), cons(x2, x3)) -> c3(A__SEL(a__sel(mark(x0), a__sel(mark(z0), mark(z1))), mark(x3)), MARK(sel(x0, sel(z0, z1))))
   A__SEL(s(sel(x0, cons(z0, z1))), cons(x2, x3)) -> c3(A__SEL(a__sel(mark(x0), cons(mark(z0), z1)), mark(x3)), MARK(sel(x0, cons(z0, z1))))
   A__SEL(s(sel(x0, s(z0))), cons(x2, x3)) -> c3(A__SEL(a__sel(mark(x0), s(mark(z0))), mark(x3)), MARK(sel(x0, s(z0))))
   A__SEL(s(sel(x0, 0)), cons(x2, x3)) -> c3(A__SEL(a__sel(mark(x0), 0), mark(x3)), MARK(sel(x0, 0)))
   A__SEL(s(sel(from(z0), x1)), cons(x2, x3)) -> c3(A__SEL(a__sel(a__from(mark(z0)), mark(x1)), mark(x3)), MARK(sel(from(z0), x1)))
   A__SEL(s(sel(sel(z0, z1), x1)), cons(x2, x3)) -> c3(A__SEL(a__sel(a__sel(mark(z0), mark(z1)), mark(x1)), mark(x3)), MARK(sel(sel(z0, z1), x1)))
   A__SEL(s(sel(cons(z0, z1), x1)), cons(x2, x3)) -> c3(A__SEL(a__sel(cons(mark(z0), z1), mark(x1)), mark(x3)), MARK(sel(cons(z0, z1), x1)))
   A__SEL(s(sel(s(z0), x1)), cons(x2, x3)) -> c3(A__SEL(a__sel(s(mark(z0)), mark(x1)), mark(x3)), MARK(sel(s(z0), x1)))
   A__SEL(s(sel(0, x1)), cons(x2, x3)) -> c3(A__SEL(a__sel(0, mark(x1)), mark(x3)), MARK(sel(0, x1)))
   A__SEL(s(sel(x0, x1)), cons(x2, s(z0))) -> c3(MARK(sel(x0, x1)))
   A__SEL(s(sel(x0, x1)), cons(x2, 0)) -> c3(MARK(sel(x0, x1)))
   A__SEL(s(sel(x0, x1)), cons(x2, x3)) -> c3(MARK(sel(x0, x1)))
   A__SEL(s(s(from(z0))), cons(x1, x2)) -> c3(A__SEL(s(a__from(mark(z0))), mark(x2)), MARK(s(from(z0))))
   A__SEL(s(s(sel(z0, z1))), cons(x1, x2)) -> c3(A__SEL(s(a__sel(mark(z0), mark(z1))), mark(x2)), MARK(s(sel(z0, z1))))
   A__SEL(s(s(cons(z0, z1))), cons(x1, x2)) -> c3(A__SEL(s(cons(mark(z0), z1)), mark(x2)), MARK(s(cons(z0, z1))))
   A__SEL(s(s(s(z0))), cons(x1, x2)) -> c3(A__SEL(s(s(mark(z0))), mark(x2)), MARK(s(s(z0))))
   A__SEL(s(s(0)), cons(x1, x2)) -> c3(A__SEL(s(0), mark(x2)), MARK(s(0)))
   A__SEL(s(s(x0)), cons(x1, x2)) -> c3(MARK(s(x0)))
   A__SEL(s(s(x0)), cons(x1, s(z0))) -> c3(MARK(s(x0)))
   A__SEL(s(s(x0)), cons(x1, 0)) -> c3(MARK(s(x0)))
   A__SEL(s(x0), cons(x1, from(x2))) -> c4(A__SEL(mark(x0), cons(mark(mark(x2)), from(s(mark(x2))))), MARK(from(x2)))
   A__SEL(s(x0), cons(x1, from(from(z0)))) -> c4(A__SEL(mark(x0), a__from(a__from(mark(z0)))), MARK(from(from(z0))))
   A__SEL(s(x0), cons(x1, from(sel(z0, z1)))) -> c4(A__SEL(mark(x0), a__from(a__sel(mark(z0), mark(z1)))), MARK(from(sel(z0, z1))))
   A__SEL(s(x0), cons(x1, from(cons(z0, z1)))) -> c4(A__SEL(mark(x0), a__from(cons(mark(z0), z1))), MARK(from(cons(z0, z1))))
   A__SEL(s(x0), cons(x1, from(s(z0)))) -> c4(A__SEL(mark(x0), a__from(s(mark(z0)))), MARK(from(s(z0))))
   A__SEL(s(x0), cons(x1, from(0))) -> c4(A__SEL(mark(x0), a__from(0)), MARK(from(0)))
   A__SEL(s(from(z0)), cons(x1, from(x2))) -> c4(A__SEL(a__from(mark(z0)), a__from(mark(x2))), MARK(from(x2)))
   A__SEL(s(sel(z0, z1)), cons(x1, from(x2))) -> c4(A__SEL(a__sel(mark(z0), mark(z1)), a__from(mark(x2))), MARK(from(x2)))
   A__SEL(s(s(z0)), cons(x1, from(x2))) -> c4(A__SEL(s(mark(z0)), a__from(mark(x2))), MARK(from(x2)))
   A__SEL(s(0), cons(x1, from(x2))) -> c4(A__SEL(0, a__from(mark(x2))), MARK(from(x2)))
   A__SEL(s(x0), cons(x1, from(x2))) -> c4(MARK(from(x2)))
   A__SEL(s(cons(z0, z1)), cons(x1, from(x2))) -> c4(MARK(from(x2)))
   A__SEL(s(x0), cons(x1, sel(x2, from(z0)))) -> c4(A__SEL(mark(x0), a__sel(mark(x2), a__from(mark(z0)))), MARK(sel(x2, from(z0))))
   A__SEL(s(x0), cons(x1, sel(x2, sel(z0, z1)))) -> c4(A__SEL(mark(x0), a__sel(mark(x2), a__sel(mark(z0), mark(z1)))), MARK(sel(x2, sel(z0, z1))))
   A__SEL(s(x0), cons(x1, sel(x2, cons(z0, z1)))) -> c4(A__SEL(mark(x0), a__sel(mark(x2), cons(mark(z0), z1))), MARK(sel(x2, cons(z0, z1))))
   A__SEL(s(x0), cons(x1, sel(x2, s(z0)))) -> c4(A__SEL(mark(x0), a__sel(mark(x2), s(mark(z0)))), MARK(sel(x2, s(z0))))
   A__SEL(s(x0), cons(x1, sel(x2, 0))) -> c4(A__SEL(mark(x0), a__sel(mark(x2), 0)), MARK(sel(x2, 0)))
   A__SEL(s(x0), cons(x1, sel(from(z0), x3))) -> c4(A__SEL(mark(x0), a__sel(a__from(mark(z0)), mark(x3))), MARK(sel(from(z0), x3)))
   A__SEL(s(x0), cons(x1, sel(sel(z0, z1), x3))) -> c4(A__SEL(mark(x0), a__sel(a__sel(mark(z0), mark(z1)), mark(x3))), MARK(sel(sel(z0, z1), x3)))
   A__SEL(s(x0), cons(x1, sel(cons(z0, z1), x3))) -> c4(A__SEL(mark(x0), a__sel(cons(mark(z0), z1), mark(x3))), MARK(sel(cons(z0, z1), x3)))
   A__SEL(s(x0), cons(x1, sel(s(z0), x3))) -> c4(A__SEL(mark(x0), a__sel(s(mark(z0)), mark(x3))), MARK(sel(s(z0), x3)))
   A__SEL(s(x0), cons(x1, sel(0, x3))) -> c4(A__SEL(mark(x0), a__sel(0, mark(x3))), MARK(sel(0, x3)))
   A__SEL(s(from(z0)), cons(x1, sel(x2, x3))) -> c4(A__SEL(a__from(mark(z0)), a__sel(mark(x2), mark(x3))), MARK(sel(x2, x3)))
   A__SEL(s(sel(z0, z1)), cons(x1, sel(x2, x3))) -> c4(A__SEL(a__sel(mark(z0), mark(z1)), a__sel(mark(x2), mark(x3))), MARK(sel(x2, x3)))
   A__SEL(s(s(z0)), cons(x1, sel(x2, x3))) -> c4(A__SEL(s(mark(z0)), a__sel(mark(x2), mark(x3))), MARK(sel(x2, x3)))
   A__SEL(s(0), cons(x1, sel(x2, x3))) -> c4(A__SEL(0, a__sel(mark(x2), mark(x3))), MARK(sel(x2, x3)))
   A__SEL(s(x0), cons(x1, sel(x2, x3))) -> c4(MARK(sel(x2, x3)))
   A__SEL(s(cons(z0, z1)), cons(x1, sel(x2, x3))) -> c4(MARK(sel(x2, x3)))
   A__SEL(s(x0), cons(x1, cons(from(z0), x3))) -> c4(A__SEL(mark(x0), cons(a__from(mark(z0)), x3)), MARK(cons(from(z0), x3)))
   A__SEL(s(x0), cons(x1, cons(sel(z0, z1), x3))) -> c4(A__SEL(mark(x0), cons(a__sel(mark(z0), mark(z1)), x3)), MARK(cons(sel(z0, z1), x3)))
   A__SEL(s(x0), cons(x1, cons(cons(z0, z1), x3))) -> c4(A__SEL(mark(x0), cons(cons(mark(z0), z1), x3)), MARK(cons(cons(z0, z1), x3)))
   A__SEL(s(x0), cons(x1, cons(s(z0), x3))) -> c4(A__SEL(mark(x0), cons(s(mark(z0)), x3)), MARK(cons(s(z0), x3)))
   A__SEL(s(x0), cons(x1, cons(0, x3))) -> c4(A__SEL(mark(x0), cons(0, x3)), MARK(cons(0, x3)))
   A__SEL(s(from(z0)), cons(x1, cons(x2, x3))) -> c4(A__SEL(a__from(mark(z0)), cons(mark(x2), x3)), MARK(cons(x2, x3)))
   A__SEL(s(sel(z0, z1)), cons(x1, cons(x2, x3))) -> c4(A__SEL(a__sel(mark(z0), mark(z1)), cons(mark(x2), x3)), MARK(cons(x2, x3)))
   A__SEL(s(s(z0)), cons(x1, cons(x2, x3))) -> c4(A__SEL(s(mark(z0)), cons(mark(x2), x3)), MARK(cons(x2, x3)))
   A__SEL(s(0), cons(x1, cons(x2, x3))) -> c4(A__SEL(0, cons(mark(x2), x3)), MARK(cons(x2, x3)))
   A__SEL(s(x0), cons(x1, cons(x2, x3))) -> c4(MARK(cons(x2, x3)))
   A__SEL(s(cons(z0, z1)), cons(x1, cons(x2, x3))) -> c4(MARK(cons(x2, x3)))
   A__SEL(s(from(from(z0))), cons(x1, x2)) -> c4(A__SEL(a__from(a__from(mark(z0))), mark(x2)), MARK(x2))
   A__SEL(s(from(sel(z0, z1))), cons(x1, x2)) -> c4(A__SEL(a__from(a__sel(mark(z0), mark(z1))), mark(x2)), MARK(x2))
   A__SEL(s(from(cons(z0, z1))), cons(x1, x2)) -> c4(A__SEL(a__from(cons(mark(z0), z1)), mark(x2)), MARK(x2))
   A__SEL(s(from(s(z0))), cons(x1, x2)) -> c4(A__SEL(a__from(s(mark(z0))), mark(x2)), MARK(x2))
   A__SEL(s(from(0)), cons(x1, x2)) -> c4(A__SEL(a__from(0), mark(x2)), MARK(x2))
   A__SEL(s(from(x0)), cons(x1, s(z0))) -> c4(MARK(s(z0)))
   A__SEL(s(from(x0)), cons(x1, x2)) -> c4(MARK(x2))
   A__SEL(s(sel(x0, from(z0))), cons(x2, x3)) -> c4(A__SEL(a__sel(mark(x0), a__from(mark(z0))), mark(x3)), MARK(x3))
   A__SEL(s(sel(x0, sel(z0, z1))), cons(x2, x3)) -> c4(A__SEL(a__sel(mark(x0), a__sel(mark(z0), mark(z1))), mark(x3)), MARK(x3))
   A__SEL(s(sel(x0, cons(z0, z1))), cons(x2, x3)) -> c4(A__SEL(a__sel(mark(x0), cons(mark(z0), z1)), mark(x3)), MARK(x3))
   A__SEL(s(sel(x0, s(z0))), cons(x2, x3)) -> c4(A__SEL(a__sel(mark(x0), s(mark(z0))), mark(x3)), MARK(x3))
   A__SEL(s(sel(x0, 0)), cons(x2, x3)) -> c4(A__SEL(a__sel(mark(x0), 0), mark(x3)), MARK(x3))
   A__SEL(s(sel(from(z0), x1)), cons(x2, x3)) -> c4(A__SEL(a__sel(a__from(mark(z0)), mark(x1)), mark(x3)), MARK(x3))
   A__SEL(s(sel(sel(z0, z1), x1)), cons(x2, x3)) -> c4(A__SEL(a__sel(a__sel(mark(z0), mark(z1)), mark(x1)), mark(x3)), MARK(x3))
   A__SEL(s(sel(cons(z0, z1), x1)), cons(x2, x3)) -> c4(A__SEL(a__sel(cons(mark(z0), z1), mark(x1)), mark(x3)), MARK(x3))
   A__SEL(s(sel(s(z0), x1)), cons(x2, x3)) -> c4(A__SEL(a__sel(s(mark(z0)), mark(x1)), mark(x3)), MARK(x3))
   A__SEL(s(sel(0, x1)), cons(x2, x3)) -> c4(A__SEL(a__sel(0, mark(x1)), mark(x3)), MARK(x3))
   A__SEL(s(sel(x0, x1)), cons(x2, s(z0))) -> c4(MARK(s(z0)))
   A__SEL(s(sel(x0, x1)), cons(x2, x3)) -> c4(MARK(x3))
   A__SEL(s(s(from(z0))), cons(x1, x2)) -> c4(A__SEL(s(a__from(mark(z0))), mark(x2)), MARK(x2))
   A__SEL(s(s(sel(z0, z1))), cons(x1, x2)) -> c4(A__SEL(s(a__sel(mark(z0), mark(z1))), mark(x2)), MARK(x2))
   A__SEL(s(s(cons(z0, z1))), cons(x1, x2)) -> c4(A__SEL(s(cons(mark(z0), z1)), mark(x2)), MARK(x2))
   A__SEL(s(s(s(z0))), cons(x1, x2)) -> c4(A__SEL(s(s(mark(z0))), mark(x2)), MARK(x2))
   A__SEL(s(s(0)), cons(x1, x2)) -> c4(A__SEL(s(0), mark(x2)), MARK(x2))
   A__SEL(s(s(x0)), cons(x1, s(z0))) -> c4(MARK(s(z0)))
   A__SEL(s(0), cons(x0, s(z0))) -> c4(MARK(s(z0)))
   MARK(sel(x0, from(x1))) -> c7(A__SEL(mark(x0), cons(mark(mark(x1)), from(s(mark(x1))))), MARK(x0))
   MARK(sel(x0, from(from(z0)))) -> c7(A__SEL(mark(x0), a__from(a__from(mark(z0)))), MARK(x0))
   MARK(sel(x0, from(sel(z0, z1)))) -> c7(A__SEL(mark(x0), a__from(a__sel(mark(z0), mark(z1)))), MARK(x0))
   MARK(sel(x0, from(cons(z0, z1)))) -> c7(A__SEL(mark(x0), a__from(cons(mark(z0), z1))), MARK(x0))
   MARK(sel(x0, from(s(z0)))) -> c7(A__SEL(mark(x0), a__from(s(mark(z0)))), MARK(x0))
   MARK(sel(x0, from(0))) -> c7(A__SEL(mark(x0), a__from(0)), MARK(x0))
   MARK(sel(from(z0), from(x1))) -> c7(A__SEL(a__from(mark(z0)), a__from(mark(x1))), MARK(from(z0)))
   MARK(sel(sel(z0, z1), from(x1))) -> c7(A__SEL(a__sel(mark(z0), mark(z1)), a__from(mark(x1))), MARK(sel(z0, z1)))
   MARK(sel(s(z0), from(x1))) -> c7(A__SEL(s(mark(z0)), a__from(mark(x1))), MARK(s(z0)))
   MARK(sel(x0, from(x1))) -> c7(MARK(x0))
   MARK(sel(cons(z0, z1), from(x1))) -> c7(MARK(cons(z0, z1)))
   MARK(sel(0, from(x1))) -> c7(A__SEL(0, a__from(mark(x1))))
   MARK(sel(x0, sel(x1, from(z0)))) -> c7(A__SEL(mark(x0), a__sel(mark(x1), a__from(mark(z0)))), MARK(x0))
   MARK(sel(x0, sel(x1, sel(z0, z1)))) -> c7(A__SEL(mark(x0), a__sel(mark(x1), a__sel(mark(z0), mark(z1)))), MARK(x0))
   MARK(sel(x0, sel(x1, cons(z0, z1)))) -> c7(A__SEL(mark(x0), a__sel(mark(x1), cons(mark(z0), z1))), MARK(x0))
   MARK(sel(x0, sel(x1, s(z0)))) -> c7(A__SEL(mark(x0), a__sel(mark(x1), s(mark(z0)))), MARK(x0))
   MARK(sel(x0, sel(x1, 0))) -> c7(A__SEL(mark(x0), a__sel(mark(x1), 0)), MARK(x0))
   MARK(sel(x0, sel(from(z0), x2))) -> c7(A__SEL(mark(x0), a__sel(a__from(mark(z0)), mark(x2))), MARK(x0))
   MARK(sel(x0, sel(sel(z0, z1), x2))) -> c7(A__SEL(mark(x0), a__sel(a__sel(mark(z0), mark(z1)), mark(x2))), MARK(x0))
   MARK(sel(x0, sel(cons(z0, z1), x2))) -> c7(A__SEL(mark(x0), a__sel(cons(mark(z0), z1), mark(x2))), MARK(x0))
   MARK(sel(x0, sel(s(z0), x2))) -> c7(A__SEL(mark(x0), a__sel(s(mark(z0)), mark(x2))), MARK(x0))
   MARK(sel(x0, sel(0, x2))) -> c7(A__SEL(mark(x0), a__sel(0, mark(x2))), MARK(x0))
   MARK(sel(from(z0), sel(x1, x2))) -> c7(A__SEL(a__from(mark(z0)), a__sel(mark(x1), mark(x2))), MARK(from(z0)))
   MARK(sel(sel(z0, z1), sel(x1, x2))) -> c7(A__SEL(a__sel(mark(z0), mark(z1)), a__sel(mark(x1), mark(x2))), MARK(sel(z0, z1)))
   MARK(sel(s(z0), sel(x1, x2))) -> c7(A__SEL(s(mark(z0)), a__sel(mark(x1), mark(x2))), MARK(s(z0)))
   MARK(sel(x0, sel(x1, x2))) -> c7(MARK(x0))
   MARK(sel(cons(z0, z1), sel(x1, x2))) -> c7(MARK(cons(z0, z1)))
   MARK(sel(0, sel(x1, x2))) -> c7(A__SEL(0, a__sel(mark(x1), mark(x2))))
   MARK(sel(x0, cons(from(z0), x2))) -> c7(A__SEL(mark(x0), cons(a__from(mark(z0)), x2)), MARK(x0))
   MARK(sel(x0, cons(sel(z0, z1), x2))) -> c7(A__SEL(mark(x0), cons(a__sel(mark(z0), mark(z1)), x2)), MARK(x0))
   MARK(sel(x0, cons(cons(z0, z1), x2))) -> c7(A__SEL(mark(x0), cons(cons(mark(z0), z1), x2)), MARK(x0))
   MARK(sel(x0, cons(s(z0), x2))) -> c7(A__SEL(mark(x0), cons(s(mark(z0)), x2)), MARK(x0))
   MARK(sel(x0, cons(0, x2))) -> c7(A__SEL(mark(x0), cons(0, x2)), MARK(x0))
   MARK(sel(from(z0), cons(x1, x2))) -> c7(A__SEL(a__from(mark(z0)), cons(mark(x1), x2)), MARK(from(z0)))
   MARK(sel(sel(z0, z1), cons(x1, x2))) -> c7(A__SEL(a__sel(mark(z0), mark(z1)), cons(mark(x1), x2)), MARK(sel(z0, z1)))
   MARK(sel(s(z0), cons(x1, x2))) -> c7(A__SEL(s(mark(z0)), cons(mark(x1), x2)), MARK(s(z0)))
   MARK(sel(cons(z0, z1), cons(x1, x2))) -> c7(MARK(cons(z0, z1)))
   MARK(sel(0, cons(x1, x2))) -> c7(A__SEL(0, cons(mark(x1), x2)))
   MARK(sel(from(from(z0)), x1)) -> c7(A__SEL(a__from(a__from(mark(z0))), mark(x1)), MARK(from(from(z0))))
   MARK(sel(from(sel(z0, z1)), x1)) -> c7(A__SEL(a__from(a__sel(mark(z0), mark(z1))), mark(x1)), MARK(from(sel(z0, z1))))
   MARK(sel(from(cons(z0, z1)), x1)) -> c7(A__SEL(a__from(cons(mark(z0), z1)), mark(x1)), MARK(from(cons(z0, z1))))
   MARK(sel(from(s(z0)), x1)) -> c7(A__SEL(a__from(s(mark(z0))), mark(x1)), MARK(from(s(z0))))
   MARK(sel(from(0), x1)) -> c7(A__SEL(a__from(0), mark(x1)), MARK(from(0)))
   MARK(sel(from(x0), x1)) -> c7(MARK(from(x0)))
   MARK(sel(from(x0), s(z0))) -> c7(MARK(from(x0)))
   MARK(sel(from(x0), 0)) -> c7(MARK(from(x0)))
   MARK(sel(sel(x0, from(z0)), x2)) -> c7(A__SEL(a__sel(mark(x0), a__from(mark(z0))), mark(x2)), MARK(sel(x0, from(z0))))
   MARK(sel(sel(x0, sel(z0, z1)), x2)) -> c7(A__SEL(a__sel(mark(x0), a__sel(mark(z0), mark(z1))), mark(x2)), MARK(sel(x0, sel(z0, z1))))
   MARK(sel(sel(x0, cons(z0, z1)), x2)) -> c7(A__SEL(a__sel(mark(x0), cons(mark(z0), z1)), mark(x2)), MARK(sel(x0, cons(z0, z1))))
   MARK(sel(sel(x0, s(z0)), x2)) -> c7(A__SEL(a__sel(mark(x0), s(mark(z0))), mark(x2)), MARK(sel(x0, s(z0))))
   MARK(sel(sel(x0, 0), x2)) -> c7(A__SEL(a__sel(mark(x0), 0), mark(x2)), MARK(sel(x0, 0)))
   MARK(sel(sel(from(z0), x1), x2)) -> c7(A__SEL(a__sel(a__from(mark(z0)), mark(x1)), mark(x2)), MARK(sel(from(z0), x1)))
   MARK(sel(sel(sel(z0, z1), x1), x2)) -> c7(A__SEL(a__sel(a__sel(mark(z0), mark(z1)), mark(x1)), mark(x2)), MARK(sel(sel(z0, z1), x1)))
   MARK(sel(sel(cons(z0, z1), x1), x2)) -> c7(A__SEL(a__sel(cons(mark(z0), z1), mark(x1)), mark(x2)), MARK(sel(cons(z0, z1), x1)))
   MARK(sel(sel(s(z0), x1), x2)) -> c7(A__SEL(a__sel(s(mark(z0)), mark(x1)), mark(x2)), MARK(sel(s(z0), x1)))
   MARK(sel(sel(0, x1), x2)) -> c7(A__SEL(a__sel(0, mark(x1)), mark(x2)), MARK(sel(0, x1)))
   MARK(sel(sel(x0, x1), s(z0))) -> c7(MARK(sel(x0, x1)))
   MARK(sel(sel(x0, x1), 0)) -> c7(MARK(sel(x0, x1)))
   MARK(sel(sel(x0, x1), x2)) -> c7(MARK(sel(x0, x1)))
   MARK(sel(s(from(z0)), x1)) -> c7(A__SEL(s(a__from(mark(z0))), mark(x1)), MARK(s(from(z0))))
   MARK(sel(s(sel(z0, z1)), x1)) -> c7(A__SEL(s(a__sel(mark(z0), mark(z1))), mark(x1)), MARK(s(sel(z0, z1))))
   MARK(sel(s(cons(z0, z1)), x1)) -> c7(A__SEL(s(cons(mark(z0), z1)), mark(x1)), MARK(s(cons(z0, z1))))
   MARK(sel(s(s(z0)), x1)) -> c7(A__SEL(s(s(mark(z0))), mark(x1)), MARK(s(s(z0))))
   MARK(sel(s(0), x1)) -> c7(A__SEL(s(0), mark(x1)), MARK(s(0)))
   MARK(sel(s(x0), x1)) -> c7(MARK(s(x0)))
   MARK(sel(s(x0), s(z0))) -> c7(MARK(s(x0)))
   MARK(sel(s(x0), 0)) -> c7(MARK(s(x0)))
   MARK(sel(x0, from(x1))) -> c8(A__SEL(mark(x0), cons(mark(mark(x1)), from(s(mark(x1))))), MARK(from(x1)))
   MARK(sel(x0, from(from(z0)))) -> c8(A__SEL(mark(x0), a__from(a__from(mark(z0)))), MARK(from(from(z0))))
   MARK(sel(x0, from(sel(z0, z1)))) -> c8(A__SEL(mark(x0), a__from(a__sel(mark(z0), mark(z1)))), MARK(from(sel(z0, z1))))
   MARK(sel(x0, from(cons(z0, z1)))) -> c8(A__SEL(mark(x0), a__from(cons(mark(z0), z1))), MARK(from(cons(z0, z1))))
   MARK(sel(x0, from(s(z0)))) -> c8(A__SEL(mark(x0), a__from(s(mark(z0)))), MARK(from(s(z0))))
   MARK(sel(x0, from(0))) -> c8(A__SEL(mark(x0), a__from(0)), MARK(from(0)))
   MARK(sel(from(z0), from(x1))) -> c8(A__SEL(a__from(mark(z0)), a__from(mark(x1))), MARK(from(x1)))
   MARK(sel(sel(z0, z1), from(x1))) -> c8(A__SEL(a__sel(mark(z0), mark(z1)), a__from(mark(x1))), MARK(from(x1)))
   MARK(sel(s(z0), from(x1))) -> c8(A__SEL(s(mark(z0)), a__from(mark(x1))), MARK(from(x1)))
   MARK(sel(0, from(x1))) -> c8(A__SEL(0, a__from(mark(x1))), MARK(from(x1)))
   MARK(sel(x0, from(x1))) -> c8(MARK(from(x1)))
   MARK(sel(cons(z0, z1), from(x1))) -> c8(MARK(from(x1)))
   MARK(sel(x0, sel(x1, from(z0)))) -> c8(A__SEL(mark(x0), a__sel(mark(x1), a__from(mark(z0)))), MARK(sel(x1, from(z0))))
   MARK(sel(x0, sel(x1, sel(z0, z1)))) -> c8(A__SEL(mark(x0), a__sel(mark(x1), a__sel(mark(z0), mark(z1)))), MARK(sel(x1, sel(z0, z1))))
   MARK(sel(x0, sel(x1, cons(z0, z1)))) -> c8(A__SEL(mark(x0), a__sel(mark(x1), cons(mark(z0), z1))), MARK(sel(x1, cons(z0, z1))))
   MARK(sel(x0, sel(x1, s(z0)))) -> c8(A__SEL(mark(x0), a__sel(mark(x1), s(mark(z0)))), MARK(sel(x1, s(z0))))
   MARK(sel(x0, sel(x1, 0))) -> c8(A__SEL(mark(x0), a__sel(mark(x1), 0)), MARK(sel(x1, 0)))
   MARK(sel(x0, sel(from(z0), x2))) -> c8(A__SEL(mark(x0), a__sel(a__from(mark(z0)), mark(x2))), MARK(sel(from(z0), x2)))
   MARK(sel(x0, sel(sel(z0, z1), x2))) -> c8(A__SEL(mark(x0), a__sel(a__sel(mark(z0), mark(z1)), mark(x2))), MARK(sel(sel(z0, z1), x2)))
   MARK(sel(x0, sel(cons(z0, z1), x2))) -> c8(A__SEL(mark(x0), a__sel(cons(mark(z0), z1), mark(x2))), MARK(sel(cons(z0, z1), x2)))
   MARK(sel(x0, sel(s(z0), x2))) -> c8(A__SEL(mark(x0), a__sel(s(mark(z0)), mark(x2))), MARK(sel(s(z0), x2)))
   MARK(sel(x0, sel(0, x2))) -> c8(A__SEL(mark(x0), a__sel(0, mark(x2))), MARK(sel(0, x2)))
   MARK(sel(from(z0), sel(x1, x2))) -> c8(A__SEL(a__from(mark(z0)), a__sel(mark(x1), mark(x2))), MARK(sel(x1, x2)))
   MARK(sel(sel(z0, z1), sel(x1, x2))) -> c8(A__SEL(a__sel(mark(z0), mark(z1)), a__sel(mark(x1), mark(x2))), MARK(sel(x1, x2)))
   MARK(sel(s(z0), sel(x1, x2))) -> c8(A__SEL(s(mark(z0)), a__sel(mark(x1), mark(x2))), MARK(sel(x1, x2)))
   MARK(sel(0, sel(x1, x2))) -> c8(A__SEL(0, a__sel(mark(x1), mark(x2))), MARK(sel(x1, x2)))
   MARK(sel(x0, sel(x1, x2))) -> c8(MARK(sel(x1, x2)))
   MARK(sel(cons(z0, z1), sel(x1, x2))) -> c8(MARK(sel(x1, x2)))
   MARK(sel(x0, cons(from(z0), x2))) -> c8(A__SEL(mark(x0), cons(a__from(mark(z0)), x2)), MARK(cons(from(z0), x2)))
   MARK(sel(x0, cons(sel(z0, z1), x2))) -> c8(A__SEL(mark(x0), cons(a__sel(mark(z0), mark(z1)), x2)), MARK(cons(sel(z0, z1), x2)))
   MARK(sel(x0, cons(cons(z0, z1), x2))) -> c8(A__SEL(mark(x0), cons(cons(mark(z0), z1), x2)), MARK(cons(cons(z0, z1), x2)))
   MARK(sel(x0, cons(s(z0), x2))) -> c8(A__SEL(mark(x0), cons(s(mark(z0)), x2)), MARK(cons(s(z0), x2)))
   MARK(sel(x0, cons(0, x2))) -> c8(A__SEL(mark(x0), cons(0, x2)), MARK(cons(0, x2)))
   MARK(sel(from(z0), cons(x1, x2))) -> c8(A__SEL(a__from(mark(z0)), cons(mark(x1), x2)), MARK(cons(x1, x2)))
   MARK(sel(sel(z0, z1), cons(x1, x2))) -> c8(A__SEL(a__sel(mark(z0), mark(z1)), cons(mark(x1), x2)), MARK(cons(x1, x2)))
   MARK(sel(s(z0), cons(x1, x2))) -> c8(A__SEL(s(mark(z0)), cons(mark(x1), x2)), MARK(cons(x1, x2)))
   MARK(sel(0, cons(x1, x2))) -> c8(A__SEL(0, cons(mark(x1), x2)), MARK(cons(x1, x2)))
   MARK(sel(x0, cons(x1, x2))) -> c8(MARK(cons(x1, x2)))
   MARK(sel(cons(z0, z1), cons(x1, x2))) -> c8(MARK(cons(x1, x2)))
   MARK(sel(from(from(z0)), x1)) -> c8(A__SEL(a__from(a__from(mark(z0))), mark(x1)), MARK(x1))
   MARK(sel(from(sel(z0, z1)), x1)) -> c8(A__SEL(a__from(a__sel(mark(z0), mark(z1))), mark(x1)), MARK(x1))
   MARK(sel(from(cons(z0, z1)), x1)) -> c8(A__SEL(a__from(cons(mark(z0), z1)), mark(x1)), MARK(x1))
   MARK(sel(from(s(z0)), x1)) -> c8(A__SEL(a__from(s(mark(z0))), mark(x1)), MARK(x1))
   MARK(sel(from(0), x1)) -> c8(A__SEL(a__from(0), mark(x1)), MARK(x1))
   MARK(sel(from(x0), s(z0))) -> c8(MARK(s(z0)))
   MARK(sel(from(x0), x1)) -> c8(MARK(x1))
   MARK(sel(sel(x0, from(z0)), x2)) -> c8(A__SEL(a__sel(mark(x0), a__from(mark(z0))), mark(x2)), MARK(x2))
   MARK(sel(sel(x0, sel(z0, z1)), x2)) -> c8(A__SEL(a__sel(mark(x0), a__sel(mark(z0), mark(z1))), mark(x2)), MARK(x2))
   MARK(sel(sel(x0, cons(z0, z1)), x2)) -> c8(A__SEL(a__sel(mark(x0), cons(mark(z0), z1)), mark(x2)), MARK(x2))
   MARK(sel(sel(x0, s(z0)), x2)) -> c8(A__SEL(a__sel(mark(x0), s(mark(z0))), mark(x2)), MARK(x2))
   MARK(sel(sel(x0, 0), x2)) -> c8(A__SEL(a__sel(mark(x0), 0), mark(x2)), MARK(x2))
   MARK(sel(sel(from(z0), x1), x2)) -> c8(A__SEL(a__sel(a__from(mark(z0)), mark(x1)), mark(x2)), MARK(x2))
   MARK(sel(sel(sel(z0, z1), x1), x2)) -> c8(A__SEL(a__sel(a__sel(mark(z0), mark(z1)), mark(x1)), mark(x2)), MARK(x2))
   MARK(sel(sel(cons(z0, z1), x1), x2)) -> c8(A__SEL(a__sel(cons(mark(z0), z1), mark(x1)), mark(x2)), MARK(x2))
   MARK(sel(sel(s(z0), x1), x2)) -> c8(A__SEL(a__sel(s(mark(z0)), mark(x1)), mark(x2)), MARK(x2))
   MARK(sel(sel(0, x1), x2)) -> c8(A__SEL(a__sel(0, mark(x1)), mark(x2)), MARK(x2))
   MARK(sel(sel(x0, x1), s(z0))) -> c8(MARK(s(z0)))
   MARK(sel(sel(x0, x1), x2)) -> c8(MARK(x2))
   MARK(sel(s(from(z0)), x1)) -> c8(A__SEL(s(a__from(mark(z0))), mark(x1)), MARK(x1))
   MARK(sel(s(sel(z0, z1)), x1)) -> c8(A__SEL(s(a__sel(mark(z0), mark(z1))), mark(x1)), MARK(x1))
   MARK(sel(s(cons(z0, z1)), x1)) -> c8(A__SEL(s(cons(mark(z0), z1)), mark(x1)), MARK(x1))
   MARK(sel(s(s(z0)), x1)) -> c8(A__SEL(s(s(mark(z0))), mark(x1)), MARK(x1))
   MARK(sel(s(0), x1)) -> c8(A__SEL(s(0), mark(x1)), MARK(x1))
   MARK(sel(s(x0), s(z0))) -> c8(MARK(s(z0)))
   MARK(sel(0, s(z0))) -> c8(MARK(s(z0)))
   A__FROM(from(y0)) -> c(MARK(from(y0)))
   A__FROM(cons(y0, y1)) -> c(MARK(cons(y0, y1)))
   A__FROM(s(y0)) -> c(MARK(s(y0)))
   A__FROM(sel(y0, s(y1))) -> c(MARK(sel(y0, s(y1))))
   A__FROM(sel(y0, 0)) -> c(MARK(sel(y0, 0)))
   A__FROM(sel(cons(y0, y1), y2)) -> c(MARK(sel(cons(y0, y1), y2)))
   A__FROM(sel(y0, from(y1))) -> c(MARK(sel(y0, from(y1))))
   A__FROM(sel(y0, from(from(y1)))) -> c(MARK(sel(y0, from(from(y1)))))
   A__FROM(sel(y0, from(sel(y1, y2)))) -> c(MARK(sel(y0, from(sel(y1, y2)))))
   A__FROM(sel(y0, from(cons(y1, y2)))) -> c(MARK(sel(y0, from(cons(y1, y2)))))
   A__FROM(sel(y0, from(s(y1)))) -> c(MARK(sel(y0, from(s(y1)))))
   A__FROM(sel(y0, from(0))) -> c(MARK(sel(y0, from(0))))
   A__FROM(sel(from(y0), from(y1))) -> c(MARK(sel(from(y0), from(y1))))
   A__FROM(sel(sel(y0, y1), from(y2))) -> c(MARK(sel(sel(y0, y1), from(y2))))
   A__FROM(sel(s(y0), from(y1))) -> c(MARK(sel(s(y0), from(y1))))
   A__FROM(sel(cons(y0, y1), from(y2))) -> c(MARK(sel(cons(y0, y1), from(y2))))
   A__FROM(sel(0, from(y0))) -> c(MARK(sel(0, from(y0))))
   A__FROM(sel(y0, sel(y1, from(y2)))) -> c(MARK(sel(y0, sel(y1, from(y2)))))
   A__FROM(sel(y0, sel(y1, sel(y2, y3)))) -> c(MARK(sel(y0, sel(y1, sel(y2, y3)))))
   A__FROM(sel(y0, sel(y1, cons(y2, y3)))) -> c(MARK(sel(y0, sel(y1, cons(y2, y3)))))
   A__FROM(sel(y0, sel(y1, s(y2)))) -> c(MARK(sel(y0, sel(y1, s(y2)))))
   A__FROM(sel(y0, sel(y1, 0))) -> c(MARK(sel(y0, sel(y1, 0))))
   A__FROM(sel(y0, sel(from(y1), y2))) -> c(MARK(sel(y0, sel(from(y1), y2))))
   A__FROM(sel(y0, sel(sel(y1, y2), y3))) -> c(MARK(sel(y0, sel(sel(y1, y2), y3))))
   A__FROM(sel(y0, sel(cons(y1, y2), y3))) -> c(MARK(sel(y0, sel(cons(y1, y2), y3))))
   A__FROM(sel(y0, sel(s(y1), y2))) -> c(MARK(sel(y0, sel(s(y1), y2))))
   A__FROM(sel(y0, sel(0, y1))) -> c(MARK(sel(y0, sel(0, y1))))
   A__FROM(sel(from(y0), sel(y1, y2))) -> c(MARK(sel(from(y0), sel(y1, y2))))
   A__FROM(sel(sel(y0, y1), sel(y2, y3))) -> c(MARK(sel(sel(y0, y1), sel(y2, y3))))
   A__FROM(sel(s(y0), sel(y1, y2))) -> c(MARK(sel(s(y0), sel(y1, y2))))
   A__FROM(sel(y0, sel(y1, y2))) -> c(MARK(sel(y0, sel(y1, y2))))
   A__FROM(sel(cons(y0, y1), sel(y2, y3))) -> c(MARK(sel(cons(y0, y1), sel(y2, y3))))
   A__FROM(sel(0, sel(y0, y1))) -> c(MARK(sel(0, sel(y0, y1))))
   A__FROM(sel(y0, cons(from(y1), y2))) -> c(MARK(sel(y0, cons(from(y1), y2))))
   A__FROM(sel(y0, cons(sel(y1, y2), y3))) -> c(MARK(sel(y0, cons(sel(y1, y2), y3))))
   A__FROM(sel(y0, cons(cons(y1, y2), y3))) -> c(MARK(sel(y0, cons(cons(y1, y2), y3))))
   A__FROM(sel(y0, cons(s(y1), y2))) -> c(MARK(sel(y0, cons(s(y1), y2))))
   A__FROM(sel(y0, cons(0, y1))) -> c(MARK(sel(y0, cons(0, y1))))
   A__FROM(sel(from(y0), cons(y1, y2))) -> c(MARK(sel(from(y0), cons(y1, y2))))
   A__FROM(sel(sel(y0, y1), cons(y2, y3))) -> c(MARK(sel(sel(y0, y1), cons(y2, y3))))
   A__FROM(sel(s(y0), cons(y1, y2))) -> c(MARK(sel(s(y0), cons(y1, y2))))
   A__FROM(sel(cons(y0, y1), cons(y2, y3))) -> c(MARK(sel(cons(y0, y1), cons(y2, y3))))
   A__FROM(sel(0, cons(y0, y1))) -> c(MARK(sel(0, cons(y0, y1))))
   A__FROM(sel(from(from(y0)), y1)) -> c(MARK(sel(from(from(y0)), y1)))
   A__FROM(sel(from(sel(y0, y1)), y2)) -> c(MARK(sel(from(sel(y0, y1)), y2)))
   A__FROM(sel(from(cons(y0, y1)), y2)) -> c(MARK(sel(from(cons(y0, y1)), y2)))
   A__FROM(sel(from(s(y0)), y1)) -> c(MARK(sel(from(s(y0)), y1)))
   A__FROM(sel(from(0), y0)) -> c(MARK(sel(from(0), y0)))
   A__FROM(sel(from(y0), y1)) -> c(MARK(sel(from(y0), y1)))
   A__FROM(sel(from(y0), s(y1))) -> c(MARK(sel(from(y0), s(y1))))
   A__FROM(sel(from(y0), 0)) -> c(MARK(sel(from(y0), 0)))
   A__FROM(sel(sel(y0, from(y1)), y2)) -> c(MARK(sel(sel(y0, from(y1)), y2)))
   A__FROM(sel(sel(y0, sel(y1, y2)), y3)) -> c(MARK(sel(sel(y0, sel(y1, y2)), y3)))
   A__FROM(sel(sel(y0, cons(y1, y2)), y3)) -> c(MARK(sel(sel(y0, cons(y1, y2)), y3)))
   A__FROM(sel(sel(y0, s(y1)), y2)) -> c(MARK(sel(sel(y0, s(y1)), y2)))
   A__FROM(sel(sel(y0, 0), y1)) -> c(MARK(sel(sel(y0, 0), y1)))
   A__FROM(sel(sel(from(y0), y1), y2)) -> c(MARK(sel(sel(from(y0), y1), y2)))
   A__FROM(sel(sel(sel(y0, y1), y2), y3)) -> c(MARK(sel(sel(sel(y0, y1), y2), y3)))
   A__FROM(sel(sel(cons(y0, y1), y2), y3)) -> c(MARK(sel(sel(cons(y0, y1), y2), y3)))
   A__FROM(sel(sel(s(y0), y1), y2)) -> c(MARK(sel(sel(s(y0), y1), y2)))
   A__FROM(sel(sel(0, y0), y1)) -> c(MARK(sel(sel(0, y0), y1)))
   A__FROM(sel(sel(y0, y1), s(y2))) -> c(MARK(sel(sel(y0, y1), s(y2))))
   A__FROM(sel(sel(y0, y1), 0)) -> c(MARK(sel(sel(y0, y1), 0)))
   A__FROM(sel(sel(y0, y1), y2)) -> c(MARK(sel(sel(y0, y1), y2)))
   A__FROM(sel(s(from(y0)), y1)) -> c(MARK(sel(s(from(y0)), y1)))
   A__FROM(sel(s(sel(y0, y1)), y2)) -> c(MARK(sel(s(sel(y0, y1)), y2)))
   A__FROM(sel(s(cons(y0, y1)), y2)) -> c(MARK(sel(s(cons(y0, y1)), y2)))
   A__FROM(sel(s(s(y0)), y1)) -> c(MARK(sel(s(s(y0)), y1)))
   A__FROM(sel(s(0), y0)) -> c(MARK(sel(s(0), y0)))
   A__FROM(sel(s(y0), y1)) -> c(MARK(sel(s(y0), y1)))
   A__FROM(sel(s(y0), s(y1))) -> c(MARK(sel(s(y0), s(y1))))
   A__FROM(sel(s(y0), 0)) -> c(MARK(sel(s(y0), 0)))
   A__FROM(sel(y0, cons(y1, y2))) -> c(MARK(sel(y0, cons(y1, y2))))
   A__FROM(sel(0, s(y0))) -> c(MARK(sel(0, s(y0))))
S tuples:
   A__SEL(0, cons(z0, z1)) -> c2(MARK(z0))
   MARK(from(z0)) -> c6(A__FROM(mark(z0)), MARK(z0))
   MARK(cons(z0, z1)) -> c9(MARK(z0))
   MARK(s(z0)) -> c10(MARK(z0))
   A__SEL(s(x0), cons(x1, s(z0))) -> c3(MARK(x0))
   A__SEL(s(x0), cons(x1, 0)) -> c3(MARK(x0))
   A__SEL(s(cons(z0, z1)), cons(x1, x2)) -> c3(MARK(cons(z0, z1)))
   A__SEL(s(x0), cons(x1, s(z0))) -> c4(MARK(s(z0)))
   A__SEL(s(cons(z0, z1)), cons(x1, x2)) -> c4(MARK(x2))
   MARK(sel(x0, s(z0))) -> c7(MARK(x0))
   MARK(sel(x0, 0)) -> c7(MARK(x0))
   MARK(sel(cons(z0, z1), x1)) -> c7(MARK(cons(z0, z1)))
   MARK(sel(x0, s(z0))) -> c8(MARK(s(z0)))
   MARK(sel(cons(z0, z1), x1)) -> c8(MARK(x1))
   A__SEL(s(x0), cons(x1, from(x2))) -> c3(A__SEL(mark(x0), cons(mark(mark(x2)), from(s(mark(x2))))), MARK(x0))
   A__SEL(s(x0), cons(x1, from(from(z0)))) -> c3(A__SEL(mark(x0), a__from(a__from(mark(z0)))), MARK(x0))
   A__SEL(s(x0), cons(x1, from(sel(z0, z1)))) -> c3(A__SEL(mark(x0), a__from(a__sel(mark(z0), mark(z1)))), MARK(x0))
   A__SEL(s(x0), cons(x1, from(cons(z0, z1)))) -> c3(A__SEL(mark(x0), a__from(cons(mark(z0), z1))), MARK(x0))
   A__SEL(s(x0), cons(x1, from(s(z0)))) -> c3(A__SEL(mark(x0), a__from(s(mark(z0)))), MARK(x0))
   A__SEL(s(x0), cons(x1, from(0))) -> c3(A__SEL(mark(x0), a__from(0)), MARK(x0))
   A__SEL(s(from(z0)), cons(x1, from(x2))) -> c3(A__SEL(a__from(mark(z0)), a__from(mark(x2))), MARK(from(z0)))
   A__SEL(s(sel(z0, z1)), cons(x1, from(x2))) -> c3(A__SEL(a__sel(mark(z0), mark(z1)), a__from(mark(x2))), MARK(sel(z0, z1)))
   A__SEL(s(s(z0)), cons(x1, from(x2))) -> c3(A__SEL(s(mark(z0)), a__from(mark(x2))), MARK(s(z0)))
   A__SEL(s(x0), cons(x1, from(x2))) -> c3(MARK(x0))
   A__SEL(s(cons(z0, z1)), cons(x1, from(x2))) -> c3(MARK(cons(z0, z1)))
   A__SEL(s(0), cons(x1, from(x2))) -> c3(A__SEL(0, a__from(mark(x2))))
   A__SEL(s(x0), cons(x1, sel(x2, from(z0)))) -> c3(A__SEL(mark(x0), a__sel(mark(x2), a__from(mark(z0)))), MARK(x0))
   A__SEL(s(x0), cons(x1, sel(x2, sel(z0, z1)))) -> c3(A__SEL(mark(x0), a__sel(mark(x2), a__sel(mark(z0), mark(z1)))), MARK(x0))
   A__SEL(s(x0), cons(x1, sel(x2, cons(z0, z1)))) -> c3(A__SEL(mark(x0), a__sel(mark(x2), cons(mark(z0), z1))), MARK(x0))
   A__SEL(s(x0), cons(x1, sel(x2, s(z0)))) -> c3(A__SEL(mark(x0), a__sel(mark(x2), s(mark(z0)))), MARK(x0))
   A__SEL(s(x0), cons(x1, sel(x2, 0))) -> c3(A__SEL(mark(x0), a__sel(mark(x2), 0)), MARK(x0))
   A__SEL(s(x0), cons(x1, sel(from(z0), x3))) -> c3(A__SEL(mark(x0), a__sel(a__from(mark(z0)), mark(x3))), MARK(x0))
   A__SEL(s(x0), cons(x1, sel(sel(z0, z1), x3))) -> c3(A__SEL(mark(x0), a__sel(a__sel(mark(z0), mark(z1)), mark(x3))), MARK(x0))
   A__SEL(s(x0), cons(x1, sel(cons(z0, z1), x3))) -> c3(A__SEL(mark(x0), a__sel(cons(mark(z0), z1), mark(x3))), MARK(x0))
   A__SEL(s(x0), cons(x1, sel(s(z0), x3))) -> c3(A__SEL(mark(x0), a__sel(s(mark(z0)), mark(x3))), MARK(x0))
   A__SEL(s(x0), cons(x1, sel(0, x3))) -> c3(A__SEL(mark(x0), a__sel(0, mark(x3))), MARK(x0))
   A__SEL(s(from(z0)), cons(x1, sel(x2, x3))) -> c3(A__SEL(a__from(mark(z0)), a__sel(mark(x2), mark(x3))), MARK(from(z0)))
   A__SEL(s(sel(z0, z1)), cons(x1, sel(x2, x3))) -> c3(A__SEL(a__sel(mark(z0), mark(z1)), a__sel(mark(x2), mark(x3))), MARK(sel(z0, z1)))
   A__SEL(s(s(z0)), cons(x1, sel(x2, x3))) -> c3(A__SEL(s(mark(z0)), a__sel(mark(x2), mark(x3))), MARK(s(z0)))
   A__SEL(s(x0), cons(x1, sel(x2, x3))) -> c3(MARK(x0))
   A__SEL(s(cons(z0, z1)), cons(x1, sel(x2, x3))) -> c3(MARK(cons(z0, z1)))
   A__SEL(s(0), cons(x1, sel(x2, x3))) -> c3(A__SEL(0, a__sel(mark(x2), mark(x3))))
   A__SEL(s(x0), cons(x1, cons(from(z0), x3))) -> c3(A__SEL(mark(x0), cons(a__from(mark(z0)), x3)), MARK(x0))
   A__SEL(s(x0), cons(x1, cons(sel(z0, z1), x3))) -> c3(A__SEL(mark(x0), cons(a__sel(mark(z0), mark(z1)), x3)), MARK(x0))
   A__SEL(s(x0), cons(x1, cons(cons(z0, z1), x3))) -> c3(A__SEL(mark(x0), cons(cons(mark(z0), z1), x3)), MARK(x0))
   A__SEL(s(x0), cons(x1, cons(s(z0), x3))) -> c3(A__SEL(mark(x0), cons(s(mark(z0)), x3)), MARK(x0))
   A__SEL(s(x0), cons(x1, cons(0, x3))) -> c3(A__SEL(mark(x0), cons(0, x3)), MARK(x0))
   A__SEL(s(from(z0)), cons(x1, cons(x2, x3))) -> c3(A__SEL(a__from(mark(z0)), cons(mark(x2), x3)), MARK(from(z0)))
   A__SEL(s(sel(z0, z1)), cons(x1, cons(x2, x3))) -> c3(A__SEL(a__sel(mark(z0), mark(z1)), cons(mark(x2), x3)), MARK(sel(z0, z1)))
   A__SEL(s(s(z0)), cons(x1, cons(x2, x3))) -> c3(A__SEL(s(mark(z0)), cons(mark(x2), x3)), MARK(s(z0)))
   A__SEL(s(cons(z0, z1)), cons(x1, cons(x2, x3))) -> c3(MARK(cons(z0, z1)))
   A__SEL(s(0), cons(x1, cons(x2, x3))) -> c3(A__SEL(0, cons(mark(x2), x3)))
   A__SEL(s(from(from(z0))), cons(x1, x2)) -> c3(A__SEL(a__from(a__from(mark(z0))), mark(x2)), MARK(from(from(z0))))
   A__SEL(s(from(sel(z0, z1))), cons(x1, x2)) -> c3(A__SEL(a__from(a__sel(mark(z0), mark(z1))), mark(x2)), MARK(from(sel(z0, z1))))
   A__SEL(s(from(cons(z0, z1))), cons(x1, x2)) -> c3(A__SEL(a__from(cons(mark(z0), z1)), mark(x2)), MARK(from(cons(z0, z1))))
   A__SEL(s(from(s(z0))), cons(x1, x2)) -> c3(A__SEL(a__from(s(mark(z0))), mark(x2)), MARK(from(s(z0))))
   A__SEL(s(from(0)), cons(x1, x2)) -> c3(A__SEL(a__from(0), mark(x2)), MARK(from(0)))
   A__SEL(s(from(x0)), cons(x1, x2)) -> c3(MARK(from(x0)))
   A__SEL(s(from(x0)), cons(x1, s(z0))) -> c3(MARK(from(x0)))
   A__SEL(s(from(x0)), cons(x1, 0)) -> c3(MARK(from(x0)))
   A__SEL(s(sel(x0, from(z0))), cons(x2, x3)) -> c3(A__SEL(a__sel(mark(x0), a__from(mark(z0))), mark(x3)), MARK(sel(x0, from(z0))))
   A__SEL(s(sel(x0, sel(z0, z1))), cons(x2, x3)) -> c3(A__SEL(a__sel(mark(x0), a__sel(mark(z0), mark(z1))), mark(x3)), MARK(sel(x0, sel(z0, z1))))
   A__SEL(s(sel(x0, cons(z0, z1))), cons(x2, x3)) -> c3(A__SEL(a__sel(mark(x0), cons(mark(z0), z1)), mark(x3)), MARK(sel(x0, cons(z0, z1))))
   A__SEL(s(sel(x0, s(z0))), cons(x2, x3)) -> c3(A__SEL(a__sel(mark(x0), s(mark(z0))), mark(x3)), MARK(sel(x0, s(z0))))
   A__SEL(s(sel(x0, 0)), cons(x2, x3)) -> c3(A__SEL(a__sel(mark(x0), 0), mark(x3)), MARK(sel(x0, 0)))
   A__SEL(s(sel(from(z0), x1)), cons(x2, x3)) -> c3(A__SEL(a__sel(a__from(mark(z0)), mark(x1)), mark(x3)), MARK(sel(from(z0), x1)))
   A__SEL(s(sel(sel(z0, z1), x1)), cons(x2, x3)) -> c3(A__SEL(a__sel(a__sel(mark(z0), mark(z1)), mark(x1)), mark(x3)), MARK(sel(sel(z0, z1), x1)))
   A__SEL(s(sel(cons(z0, z1), x1)), cons(x2, x3)) -> c3(A__SEL(a__sel(cons(mark(z0), z1), mark(x1)), mark(x3)), MARK(sel(cons(z0, z1), x1)))
   A__SEL(s(sel(s(z0), x1)), cons(x2, x3)) -> c3(A__SEL(a__sel(s(mark(z0)), mark(x1)), mark(x3)), MARK(sel(s(z0), x1)))
   A__SEL(s(sel(0, x1)), cons(x2, x3)) -> c3(A__SEL(a__sel(0, mark(x1)), mark(x3)), MARK(sel(0, x1)))
   A__SEL(s(sel(x0, x1)), cons(x2, s(z0))) -> c3(MARK(sel(x0, x1)))
   A__SEL(s(sel(x0, x1)), cons(x2, 0)) -> c3(MARK(sel(x0, x1)))
   A__SEL(s(sel(x0, x1)), cons(x2, x3)) -> c3(MARK(sel(x0, x1)))
   A__SEL(s(s(from(z0))), cons(x1, x2)) -> c3(A__SEL(s(a__from(mark(z0))), mark(x2)), MARK(s(from(z0))))
   A__SEL(s(s(sel(z0, z1))), cons(x1, x2)) -> c3(A__SEL(s(a__sel(mark(z0), mark(z1))), mark(x2)), MARK(s(sel(z0, z1))))
   A__SEL(s(s(cons(z0, z1))), cons(x1, x2)) -> c3(A__SEL(s(cons(mark(z0), z1)), mark(x2)), MARK(s(cons(z0, z1))))
   A__SEL(s(s(s(z0))), cons(x1, x2)) -> c3(A__SEL(s(s(mark(z0))), mark(x2)), MARK(s(s(z0))))
   A__SEL(s(s(0)), cons(x1, x2)) -> c3(A__SEL(s(0), mark(x2)), MARK(s(0)))
   A__SEL(s(s(x0)), cons(x1, x2)) -> c3(MARK(s(x0)))
   A__SEL(s(s(x0)), cons(x1, s(z0))) -> c3(MARK(s(x0)))
   A__SEL(s(s(x0)), cons(x1, 0)) -> c3(MARK(s(x0)))
   A__SEL(s(x0), cons(x1, from(x2))) -> c4(A__SEL(mark(x0), cons(mark(mark(x2)), from(s(mark(x2))))), MARK(from(x2)))
   A__SEL(s(x0), cons(x1, from(from(z0)))) -> c4(A__SEL(mark(x0), a__from(a__from(mark(z0)))), MARK(from(from(z0))))
   A__SEL(s(x0), cons(x1, from(sel(z0, z1)))) -> c4(A__SEL(mark(x0), a__from(a__sel(mark(z0), mark(z1)))), MARK(from(sel(z0, z1))))
   A__SEL(s(x0), cons(x1, from(cons(z0, z1)))) -> c4(A__SEL(mark(x0), a__from(cons(mark(z0), z1))), MARK(from(cons(z0, z1))))
   A__SEL(s(x0), cons(x1, from(s(z0)))) -> c4(A__SEL(mark(x0), a__from(s(mark(z0)))), MARK(from(s(z0))))
   A__SEL(s(x0), cons(x1, from(0))) -> c4(A__SEL(mark(x0), a__from(0)), MARK(from(0)))
   A__SEL(s(from(z0)), cons(x1, from(x2))) -> c4(A__SEL(a__from(mark(z0)), a__from(mark(x2))), MARK(from(x2)))
   A__SEL(s(sel(z0, z1)), cons(x1, from(x2))) -> c4(A__SEL(a__sel(mark(z0), mark(z1)), a__from(mark(x2))), MARK(from(x2)))
   A__SEL(s(s(z0)), cons(x1, from(x2))) -> c4(A__SEL(s(mark(z0)), a__from(mark(x2))), MARK(from(x2)))
   A__SEL(s(0), cons(x1, from(x2))) -> c4(A__SEL(0, a__from(mark(x2))), MARK(from(x2)))
   A__SEL(s(x0), cons(x1, from(x2))) -> c4(MARK(from(x2)))
   A__SEL(s(cons(z0, z1)), cons(x1, from(x2))) -> c4(MARK(from(x2)))
   A__SEL(s(x0), cons(x1, sel(x2, from(z0)))) -> c4(A__SEL(mark(x0), a__sel(mark(x2), a__from(mark(z0)))), MARK(sel(x2, from(z0))))
   A__SEL(s(x0), cons(x1, sel(x2, sel(z0, z1)))) -> c4(A__SEL(mark(x0), a__sel(mark(x2), a__sel(mark(z0), mark(z1)))), MARK(sel(x2, sel(z0, z1))))
   A__SEL(s(x0), cons(x1, sel(x2, cons(z0, z1)))) -> c4(A__SEL(mark(x0), a__sel(mark(x2), cons(mark(z0), z1))), MARK(sel(x2, cons(z0, z1))))
   A__SEL(s(x0), cons(x1, sel(x2, s(z0)))) -> c4(A__SEL(mark(x0), a__sel(mark(x2), s(mark(z0)))), MARK(sel(x2, s(z0))))
   A__SEL(s(x0), cons(x1, sel(x2, 0))) -> c4(A__SEL(mark(x0), a__sel(mark(x2), 0)), MARK(sel(x2, 0)))
   A__SEL(s(x0), cons(x1, sel(from(z0), x3))) -> c4(A__SEL(mark(x0), a__sel(a__from(mark(z0)), mark(x3))), MARK(sel(from(z0), x3)))
   A__SEL(s(x0), cons(x1, sel(sel(z0, z1), x3))) -> c4(A__SEL(mark(x0), a__sel(a__sel(mark(z0), mark(z1)), mark(x3))), MARK(sel(sel(z0, z1), x3)))
   A__SEL(s(x0), cons(x1, sel(cons(z0, z1), x3))) -> c4(A__SEL(mark(x0), a__sel(cons(mark(z0), z1), mark(x3))), MARK(sel(cons(z0, z1), x3)))
   A__SEL(s(x0), cons(x1, sel(s(z0), x3))) -> c4(A__SEL(mark(x0), a__sel(s(mark(z0)), mark(x3))), MARK(sel(s(z0), x3)))
   A__SEL(s(x0), cons(x1, sel(0, x3))) -> c4(A__SEL(mark(x0), a__sel(0, mark(x3))), MARK(sel(0, x3)))
   A__SEL(s(from(z0)), cons(x1, sel(x2, x3))) -> c4(A__SEL(a__from(mark(z0)), a__sel(mark(x2), mark(x3))), MARK(sel(x2, x3)))
   A__SEL(s(sel(z0, z1)), cons(x1, sel(x2, x3))) -> c4(A__SEL(a__sel(mark(z0), mark(z1)), a__sel(mark(x2), mark(x3))), MARK(sel(x2, x3)))
   A__SEL(s(s(z0)), cons(x1, sel(x2, x3))) -> c4(A__SEL(s(mark(z0)), a__sel(mark(x2), mark(x3))), MARK(sel(x2, x3)))
   A__SEL(s(0), cons(x1, sel(x2, x3))) -> c4(A__SEL(0, a__sel(mark(x2), mark(x3))), MARK(sel(x2, x3)))
   A__SEL(s(x0), cons(x1, sel(x2, x3))) -> c4(MARK(sel(x2, x3)))
   A__SEL(s(cons(z0, z1)), cons(x1, sel(x2, x3))) -> c4(MARK(sel(x2, x3)))
   A__SEL(s(x0), cons(x1, cons(from(z0), x3))) -> c4(A__SEL(mark(x0), cons(a__from(mark(z0)), x3)), MARK(cons(from(z0), x3)))
   A__SEL(s(x0), cons(x1, cons(sel(z0, z1), x3))) -> c4(A__SEL(mark(x0), cons(a__sel(mark(z0), mark(z1)), x3)), MARK(cons(sel(z0, z1), x3)))
   A__SEL(s(x0), cons(x1, cons(cons(z0, z1), x3))) -> c4(A__SEL(mark(x0), cons(cons(mark(z0), z1), x3)), MARK(cons(cons(z0, z1), x3)))
   A__SEL(s(x0), cons(x1, cons(s(z0), x3))) -> c4(A__SEL(mark(x0), cons(s(mark(z0)), x3)), MARK(cons(s(z0), x3)))
   A__SEL(s(x0), cons(x1, cons(0, x3))) -> c4(A__SEL(mark(x0), cons(0, x3)), MARK(cons(0, x3)))
   A__SEL(s(from(z0)), cons(x1, cons(x2, x3))) -> c4(A__SEL(a__from(mark(z0)), cons(mark(x2), x3)), MARK(cons(x2, x3)))
   A__SEL(s(sel(z0, z1)), cons(x1, cons(x2, x3))) -> c4(A__SEL(a__sel(mark(z0), mark(z1)), cons(mark(x2), x3)), MARK(cons(x2, x3)))
   A__SEL(s(s(z0)), cons(x1, cons(x2, x3))) -> c4(A__SEL(s(mark(z0)), cons(mark(x2), x3)), MARK(cons(x2, x3)))
   A__SEL(s(0), cons(x1, cons(x2, x3))) -> c4(A__SEL(0, cons(mark(x2), x3)), MARK(cons(x2, x3)))
   A__SEL(s(x0), cons(x1, cons(x2, x3))) -> c4(MARK(cons(x2, x3)))
   A__SEL(s(cons(z0, z1)), cons(x1, cons(x2, x3))) -> c4(MARK(cons(x2, x3)))
   A__SEL(s(from(from(z0))), cons(x1, x2)) -> c4(A__SEL(a__from(a__from(mark(z0))), mark(x2)), MARK(x2))
   A__SEL(s(from(sel(z0, z1))), cons(x1, x2)) -> c4(A__SEL(a__from(a__sel(mark(z0), mark(z1))), mark(x2)), MARK(x2))
   A__SEL(s(from(cons(z0, z1))), cons(x1, x2)) -> c4(A__SEL(a__from(cons(mark(z0), z1)), mark(x2)), MARK(x2))
   A__SEL(s(from(s(z0))), cons(x1, x2)) -> c4(A__SEL(a__from(s(mark(z0))), mark(x2)), MARK(x2))
   A__SEL(s(from(0)), cons(x1, x2)) -> c4(A__SEL(a__from(0), mark(x2)), MARK(x2))
   A__SEL(s(from(x0)), cons(x1, s(z0))) -> c4(MARK(s(z0)))
   A__SEL(s(from(x0)), cons(x1, x2)) -> c4(MARK(x2))
   A__SEL(s(sel(x0, from(z0))), cons(x2, x3)) -> c4(A__SEL(a__sel(mark(x0), a__from(mark(z0))), mark(x3)), MARK(x3))
   A__SEL(s(sel(x0, sel(z0, z1))), cons(x2, x3)) -> c4(A__SEL(a__sel(mark(x0), a__sel(mark(z0), mark(z1))), mark(x3)), MARK(x3))
   A__SEL(s(sel(x0, cons(z0, z1))), cons(x2, x3)) -> c4(A__SEL(a__sel(mark(x0), cons(mark(z0), z1)), mark(x3)), MARK(x3))
   A__SEL(s(sel(x0, s(z0))), cons(x2, x3)) -> c4(A__SEL(a__sel(mark(x0), s(mark(z0))), mark(x3)), MARK(x3))
   A__SEL(s(sel(x0, 0)), cons(x2, x3)) -> c4(A__SEL(a__sel(mark(x0), 0), mark(x3)), MARK(x3))
   A__SEL(s(sel(from(z0), x1)), cons(x2, x3)) -> c4(A__SEL(a__sel(a__from(mark(z0)), mark(x1)), mark(x3)), MARK(x3))
   A__SEL(s(sel(sel(z0, z1), x1)), cons(x2, x3)) -> c4(A__SEL(a__sel(a__sel(mark(z0), mark(z1)), mark(x1)), mark(x3)), MARK(x3))
   A__SEL(s(sel(cons(z0, z1), x1)), cons(x2, x3)) -> c4(A__SEL(a__sel(cons(mark(z0), z1), mark(x1)), mark(x3)), MARK(x3))
   A__SEL(s(sel(s(z0), x1)), cons(x2, x3)) -> c4(A__SEL(a__sel(s(mark(z0)), mark(x1)), mark(x3)), MARK(x3))
   A__SEL(s(sel(0, x1)), cons(x2, x3)) -> c4(A__SEL(a__sel(0, mark(x1)), mark(x3)), MARK(x3))
   A__SEL(s(sel(x0, x1)), cons(x2, s(z0))) -> c4(MARK(s(z0)))
   A__SEL(s(sel(x0, x1)), cons(x2, x3)) -> c4(MARK(x3))
   A__SEL(s(s(from(z0))), cons(x1, x2)) -> c4(A__SEL(s(a__from(mark(z0))), mark(x2)), MARK(x2))
   A__SEL(s(s(sel(z0, z1))), cons(x1, x2)) -> c4(A__SEL(s(a__sel(mark(z0), mark(z1))), mark(x2)), MARK(x2))
   A__SEL(s(s(cons(z0, z1))), cons(x1, x2)) -> c4(A__SEL(s(cons(mark(z0), z1)), mark(x2)), MARK(x2))
   A__SEL(s(s(s(z0))), cons(x1, x2)) -> c4(A__SEL(s(s(mark(z0))), mark(x2)), MARK(x2))
   A__SEL(s(s(0)), cons(x1, x2)) -> c4(A__SEL(s(0), mark(x2)), MARK(x2))
   A__SEL(s(s(x0)), cons(x1, s(z0))) -> c4(MARK(s(z0)))
   A__SEL(s(0), cons(x0, s(z0))) -> c4(MARK(s(z0)))
   MARK(sel(x0, from(x1))) -> c7(A__SEL(mark(x0), cons(mark(mark(x1)), from(s(mark(x1))))), MARK(x0))
   MARK(sel(x0, from(from(z0)))) -> c7(A__SEL(mark(x0), a__from(a__from(mark(z0)))), MARK(x0))
   MARK(sel(x0, from(sel(z0, z1)))) -> c7(A__SEL(mark(x0), a__from(a__sel(mark(z0), mark(z1)))), MARK(x0))
   MARK(sel(x0, from(cons(z0, z1)))) -> c7(A__SEL(mark(x0), a__from(cons(mark(z0), z1))), MARK(x0))
   MARK(sel(x0, from(s(z0)))) -> c7(A__SEL(mark(x0), a__from(s(mark(z0)))), MARK(x0))
   MARK(sel(x0, from(0))) -> c7(A__SEL(mark(x0), a__from(0)), MARK(x0))
   MARK(sel(from(z0), from(x1))) -> c7(A__SEL(a__from(mark(z0)), a__from(mark(x1))), MARK(from(z0)))
   MARK(sel(sel(z0, z1), from(x1))) -> c7(A__SEL(a__sel(mark(z0), mark(z1)), a__from(mark(x1))), MARK(sel(z0, z1)))
   MARK(sel(s(z0), from(x1))) -> c7(A__SEL(s(mark(z0)), a__from(mark(x1))), MARK(s(z0)))
   MARK(sel(x0, from(x1))) -> c7(MARK(x0))
   MARK(sel(cons(z0, z1), from(x1))) -> c7(MARK(cons(z0, z1)))
   MARK(sel(0, from(x1))) -> c7(A__SEL(0, a__from(mark(x1))))
   MARK(sel(x0, sel(x1, from(z0)))) -> c7(A__SEL(mark(x0), a__sel(mark(x1), a__from(mark(z0)))), MARK(x0))
   MARK(sel(x0, sel(x1, sel(z0, z1)))) -> c7(A__SEL(mark(x0), a__sel(mark(x1), a__sel(mark(z0), mark(z1)))), MARK(x0))
   MARK(sel(x0, sel(x1, cons(z0, z1)))) -> c7(A__SEL(mark(x0), a__sel(mark(x1), cons(mark(z0), z1))), MARK(x0))
   MARK(sel(x0, sel(x1, s(z0)))) -> c7(A__SEL(mark(x0), a__sel(mark(x1), s(mark(z0)))), MARK(x0))
   MARK(sel(x0, sel(x1, 0))) -> c7(A__SEL(mark(x0), a__sel(mark(x1), 0)), MARK(x0))
   MARK(sel(x0, sel(from(z0), x2))) -> c7(A__SEL(mark(x0), a__sel(a__from(mark(z0)), mark(x2))), MARK(x0))
   MARK(sel(x0, sel(sel(z0, z1), x2))) -> c7(A__SEL(mark(x0), a__sel(a__sel(mark(z0), mark(z1)), mark(x2))), MARK(x0))
   MARK(sel(x0, sel(cons(z0, z1), x2))) -> c7(A__SEL(mark(x0), a__sel(cons(mark(z0), z1), mark(x2))), MARK(x0))
   MARK(sel(x0, sel(s(z0), x2))) -> c7(A__SEL(mark(x0), a__sel(s(mark(z0)), mark(x2))), MARK(x0))
   MARK(sel(x0, sel(0, x2))) -> c7(A__SEL(mark(x0), a__sel(0, mark(x2))), MARK(x0))
   MARK(sel(from(z0), sel(x1, x2))) -> c7(A__SEL(a__from(mark(z0)), a__sel(mark(x1), mark(x2))), MARK(from(z0)))
   MARK(sel(sel(z0, z1), sel(x1, x2))) -> c7(A__SEL(a__sel(mark(z0), mark(z1)), a__sel(mark(x1), mark(x2))), MARK(sel(z0, z1)))
   MARK(sel(s(z0), sel(x1, x2))) -> c7(A__SEL(s(mark(z0)), a__sel(mark(x1), mark(x2))), MARK(s(z0)))
   MARK(sel(x0, sel(x1, x2))) -> c7(MARK(x0))
   MARK(sel(cons(z0, z1), sel(x1, x2))) -> c7(MARK(cons(z0, z1)))
   MARK(sel(0, sel(x1, x2))) -> c7(A__SEL(0, a__sel(mark(x1), mark(x2))))
   MARK(sel(x0, cons(from(z0), x2))) -> c7(A__SEL(mark(x0), cons(a__from(mark(z0)), x2)), MARK(x0))
   MARK(sel(x0, cons(sel(z0, z1), x2))) -> c7(A__SEL(mark(x0), cons(a__sel(mark(z0), mark(z1)), x2)), MARK(x0))
   MARK(sel(x0, cons(cons(z0, z1), x2))) -> c7(A__SEL(mark(x0), cons(cons(mark(z0), z1), x2)), MARK(x0))
   MARK(sel(x0, cons(s(z0), x2))) -> c7(A__SEL(mark(x0), cons(s(mark(z0)), x2)), MARK(x0))
   MARK(sel(x0, cons(0, x2))) -> c7(A__SEL(mark(x0), cons(0, x2)), MARK(x0))
   MARK(sel(from(z0), cons(x1, x2))) -> c7(A__SEL(a__from(mark(z0)), cons(mark(x1), x2)), MARK(from(z0)))
   MARK(sel(sel(z0, z1), cons(x1, x2))) -> c7(A__SEL(a__sel(mark(z0), mark(z1)), cons(mark(x1), x2)), MARK(sel(z0, z1)))
   MARK(sel(s(z0), cons(x1, x2))) -> c7(A__SEL(s(mark(z0)), cons(mark(x1), x2)), MARK(s(z0)))
   MARK(sel(cons(z0, z1), cons(x1, x2))) -> c7(MARK(cons(z0, z1)))
   MARK(sel(0, cons(x1, x2))) -> c7(A__SEL(0, cons(mark(x1), x2)))
   MARK(sel(from(from(z0)), x1)) -> c7(A__SEL(a__from(a__from(mark(z0))), mark(x1)), MARK(from(from(z0))))
   MARK(sel(from(sel(z0, z1)), x1)) -> c7(A__SEL(a__from(a__sel(mark(z0), mark(z1))), mark(x1)), MARK(from(sel(z0, z1))))
   MARK(sel(from(cons(z0, z1)), x1)) -> c7(A__SEL(a__from(cons(mark(z0), z1)), mark(x1)), MARK(from(cons(z0, z1))))
   MARK(sel(from(s(z0)), x1)) -> c7(A__SEL(a__from(s(mark(z0))), mark(x1)), MARK(from(s(z0))))
   MARK(sel(from(0), x1)) -> c7(A__SEL(a__from(0), mark(x1)), MARK(from(0)))
   MARK(sel(from(x0), x1)) -> c7(MARK(from(x0)))
   MARK(sel(from(x0), s(z0))) -> c7(MARK(from(x0)))
   MARK(sel(from(x0), 0)) -> c7(MARK(from(x0)))
   MARK(sel(sel(x0, from(z0)), x2)) -> c7(A__SEL(a__sel(mark(x0), a__from(mark(z0))), mark(x2)), MARK(sel(x0, from(z0))))
   MARK(sel(sel(x0, sel(z0, z1)), x2)) -> c7(A__SEL(a__sel(mark(x0), a__sel(mark(z0), mark(z1))), mark(x2)), MARK(sel(x0, sel(z0, z1))))
   MARK(sel(sel(x0, cons(z0, z1)), x2)) -> c7(A__SEL(a__sel(mark(x0), cons(mark(z0), z1)), mark(x2)), MARK(sel(x0, cons(z0, z1))))
   MARK(sel(sel(x0, s(z0)), x2)) -> c7(A__SEL(a__sel(mark(x0), s(mark(z0))), mark(x2)), MARK(sel(x0, s(z0))))
   MARK(sel(sel(x0, 0), x2)) -> c7(A__SEL(a__sel(mark(x0), 0), mark(x2)), MARK(sel(x0, 0)))
   MARK(sel(sel(from(z0), x1), x2)) -> c7(A__SEL(a__sel(a__from(mark(z0)), mark(x1)), mark(x2)), MARK(sel(from(z0), x1)))
   MARK(sel(sel(sel(z0, z1), x1), x2)) -> c7(A__SEL(a__sel(a__sel(mark(z0), mark(z1)), mark(x1)), mark(x2)), MARK(sel(sel(z0, z1), x1)))
   MARK(sel(sel(cons(z0, z1), x1), x2)) -> c7(A__SEL(a__sel(cons(mark(z0), z1), mark(x1)), mark(x2)), MARK(sel(cons(z0, z1), x1)))
   MARK(sel(sel(s(z0), x1), x2)) -> c7(A__SEL(a__sel(s(mark(z0)), mark(x1)), mark(x2)), MARK(sel(s(z0), x1)))
   MARK(sel(sel(0, x1), x2)) -> c7(A__SEL(a__sel(0, mark(x1)), mark(x2)), MARK(sel(0, x1)))
   MARK(sel(sel(x0, x1), s(z0))) -> c7(MARK(sel(x0, x1)))
   MARK(sel(sel(x0, x1), 0)) -> c7(MARK(sel(x0, x1)))
   MARK(sel(sel(x0, x1), x2)) -> c7(MARK(sel(x0, x1)))
   MARK(sel(s(from(z0)), x1)) -> c7(A__SEL(s(a__from(mark(z0))), mark(x1)), MARK(s(from(z0))))
   MARK(sel(s(sel(z0, z1)), x1)) -> c7(A__SEL(s(a__sel(mark(z0), mark(z1))), mark(x1)), MARK(s(sel(z0, z1))))
   MARK(sel(s(cons(z0, z1)), x1)) -> c7(A__SEL(s(cons(mark(z0), z1)), mark(x1)), MARK(s(cons(z0, z1))))
   MARK(sel(s(s(z0)), x1)) -> c7(A__SEL(s(s(mark(z0))), mark(x1)), MARK(s(s(z0))))
   MARK(sel(s(0), x1)) -> c7(A__SEL(s(0), mark(x1)), MARK(s(0)))
   MARK(sel(s(x0), x1)) -> c7(MARK(s(x0)))
   MARK(sel(s(x0), s(z0))) -> c7(MARK(s(x0)))
   MARK(sel(s(x0), 0)) -> c7(MARK(s(x0)))
   MARK(sel(x0, from(x1))) -> c8(A__SEL(mark(x0), cons(mark(mark(x1)), from(s(mark(x1))))), MARK(from(x1)))
   MARK(sel(x0, from(from(z0)))) -> c8(A__SEL(mark(x0), a__from(a__from(mark(z0)))), MARK(from(from(z0))))
   MARK(sel(x0, from(sel(z0, z1)))) -> c8(A__SEL(mark(x0), a__from(a__sel(mark(z0), mark(z1)))), MARK(from(sel(z0, z1))))
   MARK(sel(x0, from(cons(z0, z1)))) -> c8(A__SEL(mark(x0), a__from(cons(mark(z0), z1))), MARK(from(cons(z0, z1))))
   MARK(sel(x0, from(s(z0)))) -> c8(A__SEL(mark(x0), a__from(s(mark(z0)))), MARK(from(s(z0))))
   MARK(sel(x0, from(0))) -> c8(A__SEL(mark(x0), a__from(0)), MARK(from(0)))
   MARK(sel(from(z0), from(x1))) -> c8(A__SEL(a__from(mark(z0)), a__from(mark(x1))), MARK(from(x1)))
   MARK(sel(sel(z0, z1), from(x1))) -> c8(A__SEL(a__sel(mark(z0), mark(z1)), a__from(mark(x1))), MARK(from(x1)))
   MARK(sel(s(z0), from(x1))) -> c8(A__SEL(s(mark(z0)), a__from(mark(x1))), MARK(from(x1)))
   MARK(sel(0, from(x1))) -> c8(A__SEL(0, a__from(mark(x1))), MARK(from(x1)))
   MARK(sel(x0, from(x1))) -> c8(MARK(from(x1)))
   MARK(sel(cons(z0, z1), from(x1))) -> c8(MARK(from(x1)))
   MARK(sel(x0, sel(x1, from(z0)))) -> c8(A__SEL(mark(x0), a__sel(mark(x1), a__from(mark(z0)))), MARK(sel(x1, from(z0))))
   MARK(sel(x0, sel(x1, sel(z0, z1)))) -> c8(A__SEL(mark(x0), a__sel(mark(x1), a__sel(mark(z0), mark(z1)))), MARK(sel(x1, sel(z0, z1))))
   MARK(sel(x0, sel(x1, cons(z0, z1)))) -> c8(A__SEL(mark(x0), a__sel(mark(x1), cons(mark(z0), z1))), MARK(sel(x1, cons(z0, z1))))
   MARK(sel(x0, sel(x1, s(z0)))) -> c8(A__SEL(mark(x0), a__sel(mark(x1), s(mark(z0)))), MARK(sel(x1, s(z0))))
   MARK(sel(x0, sel(x1, 0))) -> c8(A__SEL(mark(x0), a__sel(mark(x1), 0)), MARK(sel(x1, 0)))
   MARK(sel(x0, sel(from(z0), x2))) -> c8(A__SEL(mark(x0), a__sel(a__from(mark(z0)), mark(x2))), MARK(sel(from(z0), x2)))
   MARK(sel(x0, sel(sel(z0, z1), x2))) -> c8(A__SEL(mark(x0), a__sel(a__sel(mark(z0), mark(z1)), mark(x2))), MARK(sel(sel(z0, z1), x2)))
   MARK(sel(x0, sel(cons(z0, z1), x2))) -> c8(A__SEL(mark(x0), a__sel(cons(mark(z0), z1), mark(x2))), MARK(sel(cons(z0, z1), x2)))
   MARK(sel(x0, sel(s(z0), x2))) -> c8(A__SEL(mark(x0), a__sel(s(mark(z0)), mark(x2))), MARK(sel(s(z0), x2)))
   MARK(sel(x0, sel(0, x2))) -> c8(A__SEL(mark(x0), a__sel(0, mark(x2))), MARK(sel(0, x2)))
   MARK(sel(from(z0), sel(x1, x2))) -> c8(A__SEL(a__from(mark(z0)), a__sel(mark(x1), mark(x2))), MARK(sel(x1, x2)))
   MARK(sel(sel(z0, z1), sel(x1, x2))) -> c8(A__SEL(a__sel(mark(z0), mark(z1)), a__sel(mark(x1), mark(x2))), MARK(sel(x1, x2)))
   MARK(sel(s(z0), sel(x1, x2))) -> c8(A__SEL(s(mark(z0)), a__sel(mark(x1), mark(x2))), MARK(sel(x1, x2)))
   MARK(sel(0, sel(x1, x2))) -> c8(A__SEL(0, a__sel(mark(x1), mark(x2))), MARK(sel(x1, x2)))
   MARK(sel(x0, sel(x1, x2))) -> c8(MARK(sel(x1, x2)))
   MARK(sel(cons(z0, z1), sel(x1, x2))) -> c8(MARK(sel(x1, x2)))
   MARK(sel(x0, cons(from(z0), x2))) -> c8(A__SEL(mark(x0), cons(a__from(mark(z0)), x2)), MARK(cons(from(z0), x2)))
   MARK(sel(x0, cons(sel(z0, z1), x2))) -> c8(A__SEL(mark(x0), cons(a__sel(mark(z0), mark(z1)), x2)), MARK(cons(sel(z0, z1), x2)))
   MARK(sel(x0, cons(cons(z0, z1), x2))) -> c8(A__SEL(mark(x0), cons(cons(mark(z0), z1), x2)), MARK(cons(cons(z0, z1), x2)))
   MARK(sel(x0, cons(s(z0), x2))) -> c8(A__SEL(mark(x0), cons(s(mark(z0)), x2)), MARK(cons(s(z0), x2)))
   MARK(sel(x0, cons(0, x2))) -> c8(A__SEL(mark(x0), cons(0, x2)), MARK(cons(0, x2)))
   MARK(sel(from(z0), cons(x1, x2))) -> c8(A__SEL(a__from(mark(z0)), cons(mark(x1), x2)), MARK(cons(x1, x2)))
   MARK(sel(sel(z0, z1), cons(x1, x2))) -> c8(A__SEL(a__sel(mark(z0), mark(z1)), cons(mark(x1), x2)), MARK(cons(x1, x2)))
   MARK(sel(s(z0), cons(x1, x2))) -> c8(A__SEL(s(mark(z0)), cons(mark(x1), x2)), MARK(cons(x1, x2)))
   MARK(sel(0, cons(x1, x2))) -> c8(A__SEL(0, cons(mark(x1), x2)), MARK(cons(x1, x2)))
   MARK(sel(x0, cons(x1, x2))) -> c8(MARK(cons(x1, x2)))
   MARK(sel(cons(z0, z1), cons(x1, x2))) -> c8(MARK(cons(x1, x2)))
   MARK(sel(from(from(z0)), x1)) -> c8(A__SEL(a__from(a__from(mark(z0))), mark(x1)), MARK(x1))
   MARK(sel(from(sel(z0, z1)), x1)) -> c8(A__SEL(a__from(a__sel(mark(z0), mark(z1))), mark(x1)), MARK(x1))
   MARK(sel(from(cons(z0, z1)), x1)) -> c8(A__SEL(a__from(cons(mark(z0), z1)), mark(x1)), MARK(x1))
   MARK(sel(from(s(z0)), x1)) -> c8(A__SEL(a__from(s(mark(z0))), mark(x1)), MARK(x1))
   MARK(sel(from(0), x1)) -> c8(A__SEL(a__from(0), mark(x1)), MARK(x1))
   MARK(sel(from(x0), s(z0))) -> c8(MARK(s(z0)))
   MARK(sel(from(x0), x1)) -> c8(MARK(x1))
   MARK(sel(sel(x0, from(z0)), x2)) -> c8(A__SEL(a__sel(mark(x0), a__from(mark(z0))), mark(x2)), MARK(x2))
   MARK(sel(sel(x0, sel(z0, z1)), x2)) -> c8(A__SEL(a__sel(mark(x0), a__sel(mark(z0), mark(z1))), mark(x2)), MARK(x2))
   MARK(sel(sel(x0, cons(z0, z1)), x2)) -> c8(A__SEL(a__sel(mark(x0), cons(mark(z0), z1)), mark(x2)), MARK(x2))
   MARK(sel(sel(x0, s(z0)), x2)) -> c8(A__SEL(a__sel(mark(x0), s(mark(z0))), mark(x2)), MARK(x2))
   MARK(sel(sel(x0, 0), x2)) -> c8(A__SEL(a__sel(mark(x0), 0), mark(x2)), MARK(x2))
   MARK(sel(sel(from(z0), x1), x2)) -> c8(A__SEL(a__sel(a__from(mark(z0)), mark(x1)), mark(x2)), MARK(x2))
   MARK(sel(sel(sel(z0, z1), x1), x2)) -> c8(A__SEL(a__sel(a__sel(mark(z0), mark(z1)), mark(x1)), mark(x2)), MARK(x2))
   MARK(sel(sel(cons(z0, z1), x1), x2)) -> c8(A__SEL(a__sel(cons(mark(z0), z1), mark(x1)), mark(x2)), MARK(x2))
   MARK(sel(sel(s(z0), x1), x2)) -> c8(A__SEL(a__sel(s(mark(z0)), mark(x1)), mark(x2)), MARK(x2))
   MARK(sel(sel(0, x1), x2)) -> c8(A__SEL(a__sel(0, mark(x1)), mark(x2)), MARK(x2))
   MARK(sel(sel(x0, x1), s(z0))) -> c8(MARK(s(z0)))
   MARK(sel(sel(x0, x1), x2)) -> c8(MARK(x2))
   MARK(sel(s(from(z0)), x1)) -> c8(A__SEL(s(a__from(mark(z0))), mark(x1)), MARK(x1))
   MARK(sel(s(sel(z0, z1)), x1)) -> c8(A__SEL(s(a__sel(mark(z0), mark(z1))), mark(x1)), MARK(x1))
   MARK(sel(s(cons(z0, z1)), x1)) -> c8(A__SEL(s(cons(mark(z0), z1)), mark(x1)), MARK(x1))
   MARK(sel(s(s(z0)), x1)) -> c8(A__SEL(s(s(mark(z0))), mark(x1)), MARK(x1))
   MARK(sel(s(0), x1)) -> c8(A__SEL(s(0), mark(x1)), MARK(x1))
   MARK(sel(s(x0), s(z0))) -> c8(MARK(s(z0)))
   MARK(sel(0, s(z0))) -> c8(MARK(s(z0)))
   A__FROM(from(y0)) -> c(MARK(from(y0)))
   A__FROM(cons(y0, y1)) -> c(MARK(cons(y0, y1)))
   A__FROM(s(y0)) -> c(MARK(s(y0)))
   A__FROM(sel(y0, s(y1))) -> c(MARK(sel(y0, s(y1))))
   A__FROM(sel(y0, 0)) -> c(MARK(sel(y0, 0)))
   A__FROM(sel(cons(y0, y1), y2)) -> c(MARK(sel(cons(y0, y1), y2)))
   A__FROM(sel(y0, from(y1))) -> c(MARK(sel(y0, from(y1))))
   A__FROM(sel(y0, from(from(y1)))) -> c(MARK(sel(y0, from(from(y1)))))
   A__FROM(sel(y0, from(sel(y1, y2)))) -> c(MARK(sel(y0, from(sel(y1, y2)))))
   A__FROM(sel(y0, from(cons(y1, y2)))) -> c(MARK(sel(y0, from(cons(y1, y2)))))
   A__FROM(sel(y0, from(s(y1)))) -> c(MARK(sel(y0, from(s(y1)))))
   A__FROM(sel(y0, from(0))) -> c(MARK(sel(y0, from(0))))
   A__FROM(sel(from(y0), from(y1))) -> c(MARK(sel(from(y0), from(y1))))
   A__FROM(sel(sel(y0, y1), from(y2))) -> c(MARK(sel(sel(y0, y1), from(y2))))
   A__FROM(sel(s(y0), from(y1))) -> c(MARK(sel(s(y0), from(y1))))
   A__FROM(sel(cons(y0, y1), from(y2))) -> c(MARK(sel(cons(y0, y1), from(y2))))
   A__FROM(sel(0, from(y0))) -> c(MARK(sel(0, from(y0))))
   A__FROM(sel(y0, sel(y1, from(y2)))) -> c(MARK(sel(y0, sel(y1, from(y2)))))
   A__FROM(sel(y0, sel(y1, sel(y2, y3)))) -> c(MARK(sel(y0, sel(y1, sel(y2, y3)))))
   A__FROM(sel(y0, sel(y1, cons(y2, y3)))) -> c(MARK(sel(y0, sel(y1, cons(y2, y3)))))
   A__FROM(sel(y0, sel(y1, s(y2)))) -> c(MARK(sel(y0, sel(y1, s(y2)))))
   A__FROM(sel(y0, sel(y1, 0))) -> c(MARK(sel(y0, sel(y1, 0))))
   A__FROM(sel(y0, sel(from(y1), y2))) -> c(MARK(sel(y0, sel(from(y1), y2))))
   A__FROM(sel(y0, sel(sel(y1, y2), y3))) -> c(MARK(sel(y0, sel(sel(y1, y2), y3))))
   A__FROM(sel(y0, sel(cons(y1, y2), y3))) -> c(MARK(sel(y0, sel(cons(y1, y2), y3))))
   A__FROM(sel(y0, sel(s(y1), y2))) -> c(MARK(sel(y0, sel(s(y1), y2))))
   A__FROM(sel(y0, sel(0, y1))) -> c(MARK(sel(y0, sel(0, y1))))
   A__FROM(sel(from(y0), sel(y1, y2))) -> c(MARK(sel(from(y0), sel(y1, y2))))
   A__FROM(sel(sel(y0, y1), sel(y2, y3))) -> c(MARK(sel(sel(y0, y1), sel(y2, y3))))
   A__FROM(sel(s(y0), sel(y1, y2))) -> c(MARK(sel(s(y0), sel(y1, y2))))
   A__FROM(sel(y0, sel(y1, y2))) -> c(MARK(sel(y0, sel(y1, y2))))
   A__FROM(sel(cons(y0, y1), sel(y2, y3))) -> c(MARK(sel(cons(y0, y1), sel(y2, y3))))
   A__FROM(sel(0, sel(y0, y1))) -> c(MARK(sel(0, sel(y0, y1))))
   A__FROM(sel(y0, cons(from(y1), y2))) -> c(MARK(sel(y0, cons(from(y1), y2))))
   A__FROM(sel(y0, cons(sel(y1, y2), y3))) -> c(MARK(sel(y0, cons(sel(y1, y2), y3))))
   A__FROM(sel(y0, cons(cons(y1, y2), y3))) -> c(MARK(sel(y0, cons(cons(y1, y2), y3))))
   A__FROM(sel(y0, cons(s(y1), y2))) -> c(MARK(sel(y0, cons(s(y1), y2))))
   A__FROM(sel(y0, cons(0, y1))) -> c(MARK(sel(y0, cons(0, y1))))
   A__FROM(sel(from(y0), cons(y1, y2))) -> c(MARK(sel(from(y0), cons(y1, y2))))
   A__FROM(sel(sel(y0, y1), cons(y2, y3))) -> c(MARK(sel(sel(y0, y1), cons(y2, y3))))
   A__FROM(sel(s(y0), cons(y1, y2))) -> c(MARK(sel(s(y0), cons(y1, y2))))
   A__FROM(sel(cons(y0, y1), cons(y2, y3))) -> c(MARK(sel(cons(y0, y1), cons(y2, y3))))
   A__FROM(sel(0, cons(y0, y1))) -> c(MARK(sel(0, cons(y0, y1))))
   A__FROM(sel(from(from(y0)), y1)) -> c(MARK(sel(from(from(y0)), y1)))
   A__FROM(sel(from(sel(y0, y1)), y2)) -> c(MARK(sel(from(sel(y0, y1)), y2)))
   A__FROM(sel(from(cons(y0, y1)), y2)) -> c(MARK(sel(from(cons(y0, y1)), y2)))
   A__FROM(sel(from(s(y0)), y1)) -> c(MARK(sel(from(s(y0)), y1)))
   A__FROM(sel(from(0), y0)) -> c(MARK(sel(from(0), y0)))
   A__FROM(sel(from(y0), y1)) -> c(MARK(sel(from(y0), y1)))
   A__FROM(sel(from(y0), s(y1))) -> c(MARK(sel(from(y0), s(y1))))
   A__FROM(sel(from(y0), 0)) -> c(MARK(sel(from(y0), 0)))
   A__FROM(sel(sel(y0, from(y1)), y2)) -> c(MARK(sel(sel(y0, from(y1)), y2)))
   A__FROM(sel(sel(y0, sel(y1, y2)), y3)) -> c(MARK(sel(sel(y0, sel(y1, y2)), y3)))
   A__FROM(sel(sel(y0, cons(y1, y2)), y3)) -> c(MARK(sel(sel(y0, cons(y1, y2)), y3)))
   A__FROM(sel(sel(y0, s(y1)), y2)) -> c(MARK(sel(sel(y0, s(y1)), y2)))
   A__FROM(sel(sel(y0, 0), y1)) -> c(MARK(sel(sel(y0, 0), y1)))
   A__FROM(sel(sel(from(y0), y1), y2)) -> c(MARK(sel(sel(from(y0), y1), y2)))
   A__FROM(sel(sel(sel(y0, y1), y2), y3)) -> c(MARK(sel(sel(sel(y0, y1), y2), y3)))
   A__FROM(sel(sel(cons(y0, y1), y2), y3)) -> c(MARK(sel(sel(cons(y0, y1), y2), y3)))
   A__FROM(sel(sel(s(y0), y1), y2)) -> c(MARK(sel(sel(s(y0), y1), y2)))
   A__FROM(sel(sel(0, y0), y1)) -> c(MARK(sel(sel(0, y0), y1)))
   A__FROM(sel(sel(y0, y1), s(y2))) -> c(MARK(sel(sel(y0, y1), s(y2))))
   A__FROM(sel(sel(y0, y1), 0)) -> c(MARK(sel(sel(y0, y1), 0)))
   A__FROM(sel(sel(y0, y1), y2)) -> c(MARK(sel(sel(y0, y1), y2)))
   A__FROM(sel(s(from(y0)), y1)) -> c(MARK(sel(s(from(y0)), y1)))
   A__FROM(sel(s(sel(y0, y1)), y2)) -> c(MARK(sel(s(sel(y0, y1)), y2)))
   A__FROM(sel(s(cons(y0, y1)), y2)) -> c(MARK(sel(s(cons(y0, y1)), y2)))
   A__FROM(sel(s(s(y0)), y1)) -> c(MARK(sel(s(s(y0)), y1)))
   A__FROM(sel(s(0), y0)) -> c(MARK(sel(s(0), y0)))
   A__FROM(sel(s(y0), y1)) -> c(MARK(sel(s(y0), y1)))
   A__FROM(sel(s(y0), s(y1))) -> c(MARK(sel(s(y0), s(y1))))
   A__FROM(sel(s(y0), 0)) -> c(MARK(sel(s(y0), 0)))
   A__FROM(sel(y0, cons(y1, y2))) -> c(MARK(sel(y0, cons(y1, y2))))
   A__FROM(sel(0, s(y0))) -> c(MARK(sel(0, s(y0))))
K tuples:none
Defined Rule Symbols:   a__from_1, a__sel_2, mark_1

Defined Pair Symbols:   A__SEL_2, MARK_1, A__FROM_1

Compound Symbols:   c2_1, c6_2, c9_1, c10_1, c3_1, c4_1, c7_1, c8_1, c3_2, c4_2, c7_2, c8_2, c_1


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

(207) CdtNarrowingProof (BOTH BOUNDS(ID, ID))
Use narrowing to replace MARK(from(z0)) -> c6(A__FROM(mark(z0)), MARK(z0)) by 
   MARK(from(from(z0))) -> c6(A__FROM(a__from(mark(z0))), MARK(from(z0)))
   MARK(from(sel(z0, z1))) -> c6(A__FROM(a__sel(mark(z0), mark(z1))), MARK(sel(z0, z1)))
   MARK(from(cons(z0, z1))) -> c6(A__FROM(cons(mark(z0), z1)), MARK(cons(z0, z1)))
   MARK(from(s(z0))) -> c6(A__FROM(s(mark(z0))), MARK(s(z0)))
   MARK(from(0)) -> c6(A__FROM(0), MARK(0))

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

(208)
Obligation:
Complexity Dependency Tuples Problem

Rules:
   a__from(z0) -> cons(mark(z0), from(s(z0)))
   a__from(z0) -> from(z0)
   a__sel(0, cons(z0, z1)) -> mark(z0)
   a__sel(s(z0), cons(z1, z2)) -> a__sel(mark(z0), mark(z2))
   a__sel(z0, z1) -> sel(z0, z1)
   mark(from(z0)) -> a__from(mark(z0))
   mark(sel(z0, z1)) -> a__sel(mark(z0), mark(z1))
   mark(cons(z0, z1)) -> cons(mark(z0), z1)
   mark(s(z0)) -> s(mark(z0))
   mark(0) -> 0
Tuples:
   A__SEL(0, cons(z0, z1)) -> c2(MARK(z0))
   MARK(cons(z0, z1)) -> c9(MARK(z0))
   MARK(s(z0)) -> c10(MARK(z0))
   A__SEL(s(x0), cons(x1, s(z0))) -> c3(MARK(x0))
   A__SEL(s(x0), cons(x1, 0)) -> c3(MARK(x0))
   A__SEL(s(cons(z0, z1)), cons(x1, x2)) -> c3(MARK(cons(z0, z1)))
   A__SEL(s(x0), cons(x1, s(z0))) -> c4(MARK(s(z0)))
   A__SEL(s(cons(z0, z1)), cons(x1, x2)) -> c4(MARK(x2))
   MARK(sel(x0, s(z0))) -> c7(MARK(x0))
   MARK(sel(x0, 0)) -> c7(MARK(x0))
   MARK(sel(cons(z0, z1), x1)) -> c7(MARK(cons(z0, z1)))
   MARK(sel(x0, s(z0))) -> c8(MARK(s(z0)))
   MARK(sel(cons(z0, z1), x1)) -> c8(MARK(x1))
   A__SEL(s(x0), cons(x1, from(x2))) -> c3(A__SEL(mark(x0), cons(mark(mark(x2)), from(s(mark(x2))))), MARK(x0))
   A__SEL(s(x0), cons(x1, from(from(z0)))) -> c3(A__SEL(mark(x0), a__from(a__from(mark(z0)))), MARK(x0))
   A__SEL(s(x0), cons(x1, from(sel(z0, z1)))) -> c3(A__SEL(mark(x0), a__from(a__sel(mark(z0), mark(z1)))), MARK(x0))
   A__SEL(s(x0), cons(x1, from(cons(z0, z1)))) -> c3(A__SEL(mark(x0), a__from(cons(mark(z0), z1))), MARK(x0))
   A__SEL(s(x0), cons(x1, from(s(z0)))) -> c3(A__SEL(mark(x0), a__from(s(mark(z0)))), MARK(x0))
   A__SEL(s(x0), cons(x1, from(0))) -> c3(A__SEL(mark(x0), a__from(0)), MARK(x0))
   A__SEL(s(from(z0)), cons(x1, from(x2))) -> c3(A__SEL(a__from(mark(z0)), a__from(mark(x2))), MARK(from(z0)))
   A__SEL(s(sel(z0, z1)), cons(x1, from(x2))) -> c3(A__SEL(a__sel(mark(z0), mark(z1)), a__from(mark(x2))), MARK(sel(z0, z1)))
   A__SEL(s(s(z0)), cons(x1, from(x2))) -> c3(A__SEL(s(mark(z0)), a__from(mark(x2))), MARK(s(z0)))
   A__SEL(s(x0), cons(x1, from(x2))) -> c3(MARK(x0))
   A__SEL(s(cons(z0, z1)), cons(x1, from(x2))) -> c3(MARK(cons(z0, z1)))
   A__SEL(s(0), cons(x1, from(x2))) -> c3(A__SEL(0, a__from(mark(x2))))
   A__SEL(s(x0), cons(x1, sel(x2, from(z0)))) -> c3(A__SEL(mark(x0), a__sel(mark(x2), a__from(mark(z0)))), MARK(x0))
   A__SEL(s(x0), cons(x1, sel(x2, sel(z0, z1)))) -> c3(A__SEL(mark(x0), a__sel(mark(x2), a__sel(mark(z0), mark(z1)))), MARK(x0))
   A__SEL(s(x0), cons(x1, sel(x2, cons(z0, z1)))) -> c3(A__SEL(mark(x0), a__sel(mark(x2), cons(mark(z0), z1))), MARK(x0))
   A__SEL(s(x0), cons(x1, sel(x2, s(z0)))) -> c3(A__SEL(mark(x0), a__sel(mark(x2), s(mark(z0)))), MARK(x0))
   A__SEL(s(x0), cons(x1, sel(x2, 0))) -> c3(A__SEL(mark(x0), a__sel(mark(x2), 0)), MARK(x0))
   A__SEL(s(x0), cons(x1, sel(from(z0), x3))) -> c3(A__SEL(mark(x0), a__sel(a__from(mark(z0)), mark(x3))), MARK(x0))
   A__SEL(s(x0), cons(x1, sel(sel(z0, z1), x3))) -> c3(A__SEL(mark(x0), a__sel(a__sel(mark(z0), mark(z1)), mark(x3))), MARK(x0))
   A__SEL(s(x0), cons(x1, sel(cons(z0, z1), x3))) -> c3(A__SEL(mark(x0), a__sel(cons(mark(z0), z1), mark(x3))), MARK(x0))
   A__SEL(s(x0), cons(x1, sel(s(z0), x3))) -> c3(A__SEL(mark(x0), a__sel(s(mark(z0)), mark(x3))), MARK(x0))
   A__SEL(s(x0), cons(x1, sel(0, x3))) -> c3(A__SEL(mark(x0), a__sel(0, mark(x3))), MARK(x0))
   A__SEL(s(from(z0)), cons(x1, sel(x2, x3))) -> c3(A__SEL(a__from(mark(z0)), a__sel(mark(x2), mark(x3))), MARK(from(z0)))
   A__SEL(s(sel(z0, z1)), cons(x1, sel(x2, x3))) -> c3(A__SEL(a__sel(mark(z0), mark(z1)), a__sel(mark(x2), mark(x3))), MARK(sel(z0, z1)))
   A__SEL(s(s(z0)), cons(x1, sel(x2, x3))) -> c3(A__SEL(s(mark(z0)), a__sel(mark(x2), mark(x3))), MARK(s(z0)))
   A__SEL(s(x0), cons(x1, sel(x2, x3))) -> c3(MARK(x0))
   A__SEL(s(cons(z0, z1)), cons(x1, sel(x2, x3))) -> c3(MARK(cons(z0, z1)))
   A__SEL(s(0), cons(x1, sel(x2, x3))) -> c3(A__SEL(0, a__sel(mark(x2), mark(x3))))
   A__SEL(s(x0), cons(x1, cons(from(z0), x3))) -> c3(A__SEL(mark(x0), cons(a__from(mark(z0)), x3)), MARK(x0))
   A__SEL(s(x0), cons(x1, cons(sel(z0, z1), x3))) -> c3(A__SEL(mark(x0), cons(a__sel(mark(z0), mark(z1)), x3)), MARK(x0))
   A__SEL(s(x0), cons(x1, cons(cons(z0, z1), x3))) -> c3(A__SEL(mark(x0), cons(cons(mark(z0), z1), x3)), MARK(x0))
   A__SEL(s(x0), cons(x1, cons(s(z0), x3))) -> c3(A__SEL(mark(x0), cons(s(mark(z0)), x3)), MARK(x0))
   A__SEL(s(x0), cons(x1, cons(0, x3))) -> c3(A__SEL(mark(x0), cons(0, x3)), MARK(x0))
   A__SEL(s(from(z0)), cons(x1, cons(x2, x3))) -> c3(A__SEL(a__from(mark(z0)), cons(mark(x2), x3)), MARK(from(z0)))
   A__SEL(s(sel(z0, z1)), cons(x1, cons(x2, x3))) -> c3(A__SEL(a__sel(mark(z0), mark(z1)), cons(mark(x2), x3)), MARK(sel(z0, z1)))
   A__SEL(s(s(z0)), cons(x1, cons(x2, x3))) -> c3(A__SEL(s(mark(z0)), cons(mark(x2), x3)), MARK(s(z0)))
   A__SEL(s(cons(z0, z1)), cons(x1, cons(x2, x3))) -> c3(MARK(cons(z0, z1)))
   A__SEL(s(0), cons(x1, cons(x2, x3))) -> c3(A__SEL(0, cons(mark(x2), x3)))
   A__SEL(s(from(from(z0))), cons(x1, x2)) -> c3(A__SEL(a__from(a__from(mark(z0))), mark(x2)), MARK(from(from(z0))))
   A__SEL(s(from(sel(z0, z1))), cons(x1, x2)) -> c3(A__SEL(a__from(a__sel(mark(z0), mark(z1))), mark(x2)), MARK(from(sel(z0, z1))))
   A__SEL(s(from(cons(z0, z1))), cons(x1, x2)) -> c3(A__SEL(a__from(cons(mark(z0), z1)), mark(x2)), MARK(from(cons(z0, z1))))
   A__SEL(s(from(s(z0))), cons(x1, x2)) -> c3(A__SEL(a__from(s(mark(z0))), mark(x2)), MARK(from(s(z0))))
   A__SEL(s(from(0)), cons(x1, x2)) -> c3(A__SEL(a__from(0), mark(x2)), MARK(from(0)))
   A__SEL(s(from(x0)), cons(x1, x2)) -> c3(MARK(from(x0)))
   A__SEL(s(from(x0)), cons(x1, s(z0))) -> c3(MARK(from(x0)))
   A__SEL(s(from(x0)), cons(x1, 0)) -> c3(MARK(from(x0)))
   A__SEL(s(sel(x0, from(z0))), cons(x2, x3)) -> c3(A__SEL(a__sel(mark(x0), a__from(mark(z0))), mark(x3)), MARK(sel(x0, from(z0))))
   A__SEL(s(sel(x0, sel(z0, z1))), cons(x2, x3)) -> c3(A__SEL(a__sel(mark(x0), a__sel(mark(z0), mark(z1))), mark(x3)), MARK(sel(x0, sel(z0, z1))))
   A__SEL(s(sel(x0, cons(z0, z1))), cons(x2, x3)) -> c3(A__SEL(a__sel(mark(x0), cons(mark(z0), z1)), mark(x3)), MARK(sel(x0, cons(z0, z1))))
   A__SEL(s(sel(x0, s(z0))), cons(x2, x3)) -> c3(A__SEL(a__sel(mark(x0), s(mark(z0))), mark(x3)), MARK(sel(x0, s(z0))))
   A__SEL(s(sel(x0, 0)), cons(x2, x3)) -> c3(A__SEL(a__sel(mark(x0), 0), mark(x3)), MARK(sel(x0, 0)))
   A__SEL(s(sel(from(z0), x1)), cons(x2, x3)) -> c3(A__SEL(a__sel(a__from(mark(z0)), mark(x1)), mark(x3)), MARK(sel(from(z0), x1)))
   A__SEL(s(sel(sel(z0, z1), x1)), cons(x2, x3)) -> c3(A__SEL(a__sel(a__sel(mark(z0), mark(z1)), mark(x1)), mark(x3)), MARK(sel(sel(z0, z1), x1)))
   A__SEL(s(sel(cons(z0, z1), x1)), cons(x2, x3)) -> c3(A__SEL(a__sel(cons(mark(z0), z1), mark(x1)), mark(x3)), MARK(sel(cons(z0, z1), x1)))
   A__SEL(s(sel(s(z0), x1)), cons(x2, x3)) -> c3(A__SEL(a__sel(s(mark(z0)), mark(x1)), mark(x3)), MARK(sel(s(z0), x1)))
   A__SEL(s(sel(0, x1)), cons(x2, x3)) -> c3(A__SEL(a__sel(0, mark(x1)), mark(x3)), MARK(sel(0, x1)))
   A__SEL(s(sel(x0, x1)), cons(x2, s(z0))) -> c3(MARK(sel(x0, x1)))
   A__SEL(s(sel(x0, x1)), cons(x2, 0)) -> c3(MARK(sel(x0, x1)))
   A__SEL(s(sel(x0, x1)), cons(x2, x3)) -> c3(MARK(sel(x0, x1)))
   A__SEL(s(s(from(z0))), cons(x1, x2)) -> c3(A__SEL(s(a__from(mark(z0))), mark(x2)), MARK(s(from(z0))))
   A__SEL(s(s(sel(z0, z1))), cons(x1, x2)) -> c3(A__SEL(s(a__sel(mark(z0), mark(z1))), mark(x2)), MARK(s(sel(z0, z1))))
   A__SEL(s(s(cons(z0, z1))), cons(x1, x2)) -> c3(A__SEL(s(cons(mark(z0), z1)), mark(x2)), MARK(s(cons(z0, z1))))
   A__SEL(s(s(s(z0))), cons(x1, x2)) -> c3(A__SEL(s(s(mark(z0))), mark(x2)), MARK(s(s(z0))))
   A__SEL(s(s(0)), cons(x1, x2)) -> c3(A__SEL(s(0), mark(x2)), MARK(s(0)))
   A__SEL(s(s(x0)), cons(x1, x2)) -> c3(MARK(s(x0)))
   A__SEL(s(s(x0)), cons(x1, s(z0))) -> c3(MARK(s(x0)))
   A__SEL(s(s(x0)), cons(x1, 0)) -> c3(MARK(s(x0)))
   A__SEL(s(x0), cons(x1, from(x2))) -> c4(A__SEL(mark(x0), cons(mark(mark(x2)), from(s(mark(x2))))), MARK(from(x2)))
   A__SEL(s(x0), cons(x1, from(from(z0)))) -> c4(A__SEL(mark(x0), a__from(a__from(mark(z0)))), MARK(from(from(z0))))
   A__SEL(s(x0), cons(x1, from(sel(z0, z1)))) -> c4(A__SEL(mark(x0), a__from(a__sel(mark(z0), mark(z1)))), MARK(from(sel(z0, z1))))
   A__SEL(s(x0), cons(x1, from(cons(z0, z1)))) -> c4(A__SEL(mark(x0), a__from(cons(mark(z0), z1))), MARK(from(cons(z0, z1))))
   A__SEL(s(x0), cons(x1, from(s(z0)))) -> c4(A__SEL(mark(x0), a__from(s(mark(z0)))), MARK(from(s(z0))))
   A__SEL(s(x0), cons(x1, from(0))) -> c4(A__SEL(mark(x0), a__from(0)), MARK(from(0)))
   A__SEL(s(from(z0)), cons(x1, from(x2))) -> c4(A__SEL(a__from(mark(z0)), a__from(mark(x2))), MARK(from(x2)))
   A__SEL(s(sel(z0, z1)), cons(x1, from(x2))) -> c4(A__SEL(a__sel(mark(z0), mark(z1)), a__from(mark(x2))), MARK(from(x2)))
   A__SEL(s(s(z0)), cons(x1, from(x2))) -> c4(A__SEL(s(mark(z0)), a__from(mark(x2))), MARK(from(x2)))
   A__SEL(s(0), cons(x1, from(x2))) -> c4(A__SEL(0, a__from(mark(x2))), MARK(from(x2)))
   A__SEL(s(x0), cons(x1, from(x2))) -> c4(MARK(from(x2)))
   A__SEL(s(cons(z0, z1)), cons(x1, from(x2))) -> c4(MARK(from(x2)))
   A__SEL(s(x0), cons(x1, sel(x2, from(z0)))) -> c4(A__SEL(mark(x0), a__sel(mark(x2), a__from(mark(z0)))), MARK(sel(x2, from(z0))))
   A__SEL(s(x0), cons(x1, sel(x2, sel(z0, z1)))) -> c4(A__SEL(mark(x0), a__sel(mark(x2), a__sel(mark(z0), mark(z1)))), MARK(sel(x2, sel(z0, z1))))
   A__SEL(s(x0), cons(x1, sel(x2, cons(z0, z1)))) -> c4(A__SEL(mark(x0), a__sel(mark(x2), cons(mark(z0), z1))), MARK(sel(x2, cons(z0, z1))))
   A__SEL(s(x0), cons(x1, sel(x2, s(z0)))) -> c4(A__SEL(mark(x0), a__sel(mark(x2), s(mark(z0)))), MARK(sel(x2, s(z0))))
   A__SEL(s(x0), cons(x1, sel(x2, 0))) -> c4(A__SEL(mark(x0), a__sel(mark(x2), 0)), MARK(sel(x2, 0)))
   A__SEL(s(x0), cons(x1, sel(from(z0), x3))) -> c4(A__SEL(mark(x0), a__sel(a__from(mark(z0)), mark(x3))), MARK(sel(from(z0), x3)))
   A__SEL(s(x0), cons(x1, sel(sel(z0, z1), x3))) -> c4(A__SEL(mark(x0), a__sel(a__sel(mark(z0), mark(z1)), mark(x3))), MARK(sel(sel(z0, z1), x3)))
   A__SEL(s(x0), cons(x1, sel(cons(z0, z1), x3))) -> c4(A__SEL(mark(x0), a__sel(cons(mark(z0), z1), mark(x3))), MARK(sel(cons(z0, z1), x3)))
   A__SEL(s(x0), cons(x1, sel(s(z0), x3))) -> c4(A__SEL(mark(x0), a__sel(s(mark(z0)), mark(x3))), MARK(sel(s(z0), x3)))
   A__SEL(s(x0), cons(x1, sel(0, x3))) -> c4(A__SEL(mark(x0), a__sel(0, mark(x3))), MARK(sel(0, x3)))
   A__SEL(s(from(z0)), cons(x1, sel(x2, x3))) -> c4(A__SEL(a__from(mark(z0)), a__sel(mark(x2), mark(x3))), MARK(sel(x2, x3)))
   A__SEL(s(sel(z0, z1)), cons(x1, sel(x2, x3))) -> c4(A__SEL(a__sel(mark(z0), mark(z1)), a__sel(mark(x2), mark(x3))), MARK(sel(x2, x3)))
   A__SEL(s(s(z0)), cons(x1, sel(x2, x3))) -> c4(A__SEL(s(mark(z0)), a__sel(mark(x2), mark(x3))), MARK(sel(x2, x3)))
   A__SEL(s(0), cons(x1, sel(x2, x3))) -> c4(A__SEL(0, a__sel(mark(x2), mark(x3))), MARK(sel(x2, x3)))
   A__SEL(s(x0), cons(x1, sel(x2, x3))) -> c4(MARK(sel(x2, x3)))
   A__SEL(s(cons(z0, z1)), cons(x1, sel(x2, x3))) -> c4(MARK(sel(x2, x3)))
   A__SEL(s(x0), cons(x1, cons(from(z0), x3))) -> c4(A__SEL(mark(x0), cons(a__from(mark(z0)), x3)), MARK(cons(from(z0), x3)))
   A__SEL(s(x0), cons(x1, cons(sel(z0, z1), x3))) -> c4(A__SEL(mark(x0), cons(a__sel(mark(z0), mark(z1)), x3)), MARK(cons(sel(z0, z1), x3)))
   A__SEL(s(x0), cons(x1, cons(cons(z0, z1), x3))) -> c4(A__SEL(mark(x0), cons(cons(mark(z0), z1), x3)), MARK(cons(cons(z0, z1), x3)))
   A__SEL(s(x0), cons(x1, cons(s(z0), x3))) -> c4(A__SEL(mark(x0), cons(s(mark(z0)), x3)), MARK(cons(s(z0), x3)))
   A__SEL(s(x0), cons(x1, cons(0, x3))) -> c4(A__SEL(mark(x0), cons(0, x3)), MARK(cons(0, x3)))
   A__SEL(s(from(z0)), cons(x1, cons(x2, x3))) -> c4(A__SEL(a__from(mark(z0)), cons(mark(x2), x3)), MARK(cons(x2, x3)))
   A__SEL(s(sel(z0, z1)), cons(x1, cons(x2, x3))) -> c4(A__SEL(a__sel(mark(z0), mark(z1)), cons(mark(x2), x3)), MARK(cons(x2, x3)))
   A__SEL(s(s(z0)), cons(x1, cons(x2, x3))) -> c4(A__SEL(s(mark(z0)), cons(mark(x2), x3)), MARK(cons(x2, x3)))
   A__SEL(s(0), cons(x1, cons(x2, x3))) -> c4(A__SEL(0, cons(mark(x2), x3)), MARK(cons(x2, x3)))
   A__SEL(s(x0), cons(x1, cons(x2, x3))) -> c4(MARK(cons(x2, x3)))
   A__SEL(s(cons(z0, z1)), cons(x1, cons(x2, x3))) -> c4(MARK(cons(x2, x3)))
   A__SEL(s(from(from(z0))), cons(x1, x2)) -> c4(A__SEL(a__from(a__from(mark(z0))), mark(x2)), MARK(x2))
   A__SEL(s(from(sel(z0, z1))), cons(x1, x2)) -> c4(A__SEL(a__from(a__sel(mark(z0), mark(z1))), mark(x2)), MARK(x2))
   A__SEL(s(from(cons(z0, z1))), cons(x1, x2)) -> c4(A__SEL(a__from(cons(mark(z0), z1)), mark(x2)), MARK(x2))
   A__SEL(s(from(s(z0))), cons(x1, x2)) -> c4(A__SEL(a__from(s(mark(z0))), mark(x2)), MARK(x2))
   A__SEL(s(from(0)), cons(x1, x2)) -> c4(A__SEL(a__from(0), mark(x2)), MARK(x2))
   A__SEL(s(from(x0)), cons(x1, s(z0))) -> c4(MARK(s(z0)))
   A__SEL(s(from(x0)), cons(x1, x2)) -> c4(MARK(x2))
   A__SEL(s(sel(x0, from(z0))), cons(x2, x3)) -> c4(A__SEL(a__sel(mark(x0), a__from(mark(z0))), mark(x3)), MARK(x3))
   A__SEL(s(sel(x0, sel(z0, z1))), cons(x2, x3)) -> c4(A__SEL(a__sel(mark(x0), a__sel(mark(z0), mark(z1))), mark(x3)), MARK(x3))
   A__SEL(s(sel(x0, cons(z0, z1))), cons(x2, x3)) -> c4(A__SEL(a__sel(mark(x0), cons(mark(z0), z1)), mark(x3)), MARK(x3))
   A__SEL(s(sel(x0, s(z0))), cons(x2, x3)) -> c4(A__SEL(a__sel(mark(x0), s(mark(z0))), mark(x3)), MARK(x3))
   A__SEL(s(sel(x0, 0)), cons(x2, x3)) -> c4(A__SEL(a__sel(mark(x0), 0), mark(x3)), MARK(x3))
   A__SEL(s(sel(from(z0), x1)), cons(x2, x3)) -> c4(A__SEL(a__sel(a__from(mark(z0)), mark(x1)), mark(x3)), MARK(x3))
   A__SEL(s(sel(sel(z0, z1), x1)), cons(x2, x3)) -> c4(A__SEL(a__sel(a__sel(mark(z0), mark(z1)), mark(x1)), mark(x3)), MARK(x3))
   A__SEL(s(sel(cons(z0, z1), x1)), cons(x2, x3)) -> c4(A__SEL(a__sel(cons(mark(z0), z1), mark(x1)), mark(x3)), MARK(x3))
   A__SEL(s(sel(s(z0), x1)), cons(x2, x3)) -> c4(A__SEL(a__sel(s(mark(z0)), mark(x1)), mark(x3)), MARK(x3))
   A__SEL(s(sel(0, x1)), cons(x2, x3)) -> c4(A__SEL(a__sel(0, mark(x1)), mark(x3)), MARK(x3))
   A__SEL(s(sel(x0, x1)), cons(x2, s(z0))) -> c4(MARK(s(z0)))
   A__SEL(s(sel(x0, x1)), cons(x2, x3)) -> c4(MARK(x3))
   A__SEL(s(s(from(z0))), cons(x1, x2)) -> c4(A__SEL(s(a__from(mark(z0))), mark(x2)), MARK(x2))
   A__SEL(s(s(sel(z0, z1))), cons(x1, x2)) -> c4(A__SEL(s(a__sel(mark(z0), mark(z1))), mark(x2)), MARK(x2))
   A__SEL(s(s(cons(z0, z1))), cons(x1, x2)) -> c4(A__SEL(s(cons(mark(z0), z1)), mark(x2)), MARK(x2))
   A__SEL(s(s(s(z0))), cons(x1, x2)) -> c4(A__SEL(s(s(mark(z0))), mark(x2)), MARK(x2))
   A__SEL(s(s(0)), cons(x1, x2)) -> c4(A__SEL(s(0), mark(x2)), MARK(x2))
   A__SEL(s(s(x0)), cons(x1, s(z0))) -> c4(MARK(s(z0)))
   A__SEL(s(0), cons(x0, s(z0))) -> c4(MARK(s(z0)))
   MARK(sel(x0, from(x1))) -> c7(A__SEL(mark(x0), cons(mark(mark(x1)), from(s(mark(x1))))), MARK(x0))
   MARK(sel(x0, from(from(z0)))) -> c7(A__SEL(mark(x0), a__from(a__from(mark(z0)))), MARK(x0))
   MARK(sel(x0, from(sel(z0, z1)))) -> c7(A__SEL(mark(x0), a__from(a__sel(mark(z0), mark(z1)))), MARK(x0))
   MARK(sel(x0, from(cons(z0, z1)))) -> c7(A__SEL(mark(x0), a__from(cons(mark(z0), z1))), MARK(x0))
   MARK(sel(x0, from(s(z0)))) -> c7(A__SEL(mark(x0), a__from(s(mark(z0)))), MARK(x0))
   MARK(sel(x0, from(0))) -> c7(A__SEL(mark(x0), a__from(0)), MARK(x0))
   MARK(sel(from(z0), from(x1))) -> c7(A__SEL(a__from(mark(z0)), a__from(mark(x1))), MARK(from(z0)))
   MARK(sel(sel(z0, z1), from(x1))) -> c7(A__SEL(a__sel(mark(z0), mark(z1)), a__from(mark(x1))), MARK(sel(z0, z1)))
   MARK(sel(s(z0), from(x1))) -> c7(A__SEL(s(mark(z0)), a__from(mark(x1))), MARK(s(z0)))
   MARK(sel(x0, from(x1))) -> c7(MARK(x0))
   MARK(sel(cons(z0, z1), from(x1))) -> c7(MARK(cons(z0, z1)))
   MARK(sel(0, from(x1))) -> c7(A__SEL(0, a__from(mark(x1))))
   MARK(sel(x0, sel(x1, from(z0)))) -> c7(A__SEL(mark(x0), a__sel(mark(x1), a__from(mark(z0)))), MARK(x0))
   MARK(sel(x0, sel(x1, sel(z0, z1)))) -> c7(A__SEL(mark(x0), a__sel(mark(x1), a__sel(mark(z0), mark(z1)))), MARK(x0))
   MARK(sel(x0, sel(x1, cons(z0, z1)))) -> c7(A__SEL(mark(x0), a__sel(mark(x1), cons(mark(z0), z1))), MARK(x0))
   MARK(sel(x0, sel(x1, s(z0)))) -> c7(A__SEL(mark(x0), a__sel(mark(x1), s(mark(z0)))), MARK(x0))
   MARK(sel(x0, sel(x1, 0))) -> c7(A__SEL(mark(x0), a__sel(mark(x1), 0)), MARK(x0))
   MARK(sel(x0, sel(from(z0), x2))) -> c7(A__SEL(mark(x0), a__sel(a__from(mark(z0)), mark(x2))), MARK(x0))
   MARK(sel(x0, sel(sel(z0, z1), x2))) -> c7(A__SEL(mark(x0), a__sel(a__sel(mark(z0), mark(z1)), mark(x2))), MARK(x0))
   MARK(sel(x0, sel(cons(z0, z1), x2))) -> c7(A__SEL(mark(x0), a__sel(cons(mark(z0), z1), mark(x2))), MARK(x0))
   MARK(sel(x0, sel(s(z0), x2))) -> c7(A__SEL(mark(x0), a__sel(s(mark(z0)), mark(x2))), MARK(x0))
   MARK(sel(x0, sel(0, x2))) -> c7(A__SEL(mark(x0), a__sel(0, mark(x2))), MARK(x0))
   MARK(sel(from(z0), sel(x1, x2))) -> c7(A__SEL(a__from(mark(z0)), a__sel(mark(x1), mark(x2))), MARK(from(z0)))
   MARK(sel(sel(z0, z1), sel(x1, x2))) -> c7(A__SEL(a__sel(mark(z0), mark(z1)), a__sel(mark(x1), mark(x2))), MARK(sel(z0, z1)))
   MARK(sel(s(z0), sel(x1, x2))) -> c7(A__SEL(s(mark(z0)), a__sel(mark(x1), mark(x2))), MARK(s(z0)))
   MARK(sel(x0, sel(x1, x2))) -> c7(MARK(x0))
   MARK(sel(cons(z0, z1), sel(x1, x2))) -> c7(MARK(cons(z0, z1)))
   MARK(sel(0, sel(x1, x2))) -> c7(A__SEL(0, a__sel(mark(x1), mark(x2))))
   MARK(sel(x0, cons(from(z0), x2))) -> c7(A__SEL(mark(x0), cons(a__from(mark(z0)), x2)), MARK(x0))
   MARK(sel(x0, cons(sel(z0, z1), x2))) -> c7(A__SEL(mark(x0), cons(a__sel(mark(z0), mark(z1)), x2)), MARK(x0))
   MARK(sel(x0, cons(cons(z0, z1), x2))) -> c7(A__SEL(mark(x0), cons(cons(mark(z0), z1), x2)), MARK(x0))
   MARK(sel(x0, cons(s(z0), x2))) -> c7(A__SEL(mark(x0), cons(s(mark(z0)), x2)), MARK(x0))
   MARK(sel(x0, cons(0, x2))) -> c7(A__SEL(mark(x0), cons(0, x2)), MARK(x0))
   MARK(sel(from(z0), cons(x1, x2))) -> c7(A__SEL(a__from(mark(z0)), cons(mark(x1), x2)), MARK(from(z0)))
   MARK(sel(sel(z0, z1), cons(x1, x2))) -> c7(A__SEL(a__sel(mark(z0), mark(z1)), cons(mark(x1), x2)), MARK(sel(z0, z1)))
   MARK(sel(s(z0), cons(x1, x2))) -> c7(A__SEL(s(mark(z0)), cons(mark(x1), x2)), MARK(s(z0)))
   MARK(sel(cons(z0, z1), cons(x1, x2))) -> c7(MARK(cons(z0, z1)))
   MARK(sel(0, cons(x1, x2))) -> c7(A__SEL(0, cons(mark(x1), x2)))
   MARK(sel(from(from(z0)), x1)) -> c7(A__SEL(a__from(a__from(mark(z0))), mark(x1)), MARK(from(from(z0))))
   MARK(sel(from(sel(z0, z1)), x1)) -> c7(A__SEL(a__from(a__sel(mark(z0), mark(z1))), mark(x1)), MARK(from(sel(z0, z1))))
   MARK(sel(from(cons(z0, z1)), x1)) -> c7(A__SEL(a__from(cons(mark(z0), z1)), mark(x1)), MARK(from(cons(z0, z1))))
   MARK(sel(from(s(z0)), x1)) -> c7(A__SEL(a__from(s(mark(z0))), mark(x1)), MARK(from(s(z0))))
   MARK(sel(from(0), x1)) -> c7(A__SEL(a__from(0), mark(x1)), MARK(from(0)))
   MARK(sel(from(x0), x1)) -> c7(MARK(from(x0)))
   MARK(sel(from(x0), s(z0))) -> c7(MARK(from(x0)))
   MARK(sel(from(x0), 0)) -> c7(MARK(from(x0)))
   MARK(sel(sel(x0, from(z0)), x2)) -> c7(A__SEL(a__sel(mark(x0), a__from(mark(z0))), mark(x2)), MARK(sel(x0, from(z0))))
   MARK(sel(sel(x0, sel(z0, z1)), x2)) -> c7(A__SEL(a__sel(mark(x0), a__sel(mark(z0), mark(z1))), mark(x2)), MARK(sel(x0, sel(z0, z1))))
   MARK(sel(sel(x0, cons(z0, z1)), x2)) -> c7(A__SEL(a__sel(mark(x0), cons(mark(z0), z1)), mark(x2)), MARK(sel(x0, cons(z0, z1))))
   MARK(sel(sel(x0, s(z0)), x2)) -> c7(A__SEL(a__sel(mark(x0), s(mark(z0))), mark(x2)), MARK(sel(x0, s(z0))))
   MARK(sel(sel(x0, 0), x2)) -> c7(A__SEL(a__sel(mark(x0), 0), mark(x2)), MARK(sel(x0, 0)))
   MARK(sel(sel(from(z0), x1), x2)) -> c7(A__SEL(a__sel(a__from(mark(z0)), mark(x1)), mark(x2)), MARK(sel(from(z0), x1)))
   MARK(sel(sel(sel(z0, z1), x1), x2)) -> c7(A__SEL(a__sel(a__sel(mark(z0), mark(z1)), mark(x1)), mark(x2)), MARK(sel(sel(z0, z1), x1)))
   MARK(sel(sel(cons(z0, z1), x1), x2)) -> c7(A__SEL(a__sel(cons(mark(z0), z1), mark(x1)), mark(x2)), MARK(sel(cons(z0, z1), x1)))
   MARK(sel(sel(s(z0), x1), x2)) -> c7(A__SEL(a__sel(s(mark(z0)), mark(x1)), mark(x2)), MARK(sel(s(z0), x1)))
   MARK(sel(sel(0, x1), x2)) -> c7(A__SEL(a__sel(0, mark(x1)), mark(x2)), MARK(sel(0, x1)))
   MARK(sel(sel(x0, x1), s(z0))) -> c7(MARK(sel(x0, x1)))
   MARK(sel(sel(x0, x1), 0)) -> c7(MARK(sel(x0, x1)))
   MARK(sel(sel(x0, x1), x2)) -> c7(MARK(sel(x0, x1)))
   MARK(sel(s(from(z0)), x1)) -> c7(A__SEL(s(a__from(mark(z0))), mark(x1)), MARK(s(from(z0))))
   MARK(sel(s(sel(z0, z1)), x1)) -> c7(A__SEL(s(a__sel(mark(z0), mark(z1))), mark(x1)), MARK(s(sel(z0, z1))))
   MARK(sel(s(cons(z0, z1)), x1)) -> c7(A__SEL(s(cons(mark(z0), z1)), mark(x1)), MARK(s(cons(z0, z1))))
   MARK(sel(s(s(z0)), x1)) -> c7(A__SEL(s(s(mark(z0))), mark(x1)), MARK(s(s(z0))))
   MARK(sel(s(0), x1)) -> c7(A__SEL(s(0), mark(x1)), MARK(s(0)))
   MARK(sel(s(x0), x1)) -> c7(MARK(s(x0)))
   MARK(sel(s(x0), s(z0))) -> c7(MARK(s(x0)))
   MARK(sel(s(x0), 0)) -> c7(MARK(s(x0)))
   MARK(sel(x0, from(x1))) -> c8(A__SEL(mark(x0), cons(mark(mark(x1)), from(s(mark(x1))))), MARK(from(x1)))
   MARK(sel(x0, from(from(z0)))) -> c8(A__SEL(mark(x0), a__from(a__from(mark(z0)))), MARK(from(from(z0))))
   MARK(sel(x0, from(sel(z0, z1)))) -> c8(A__SEL(mark(x0), a__from(a__sel(mark(z0), mark(z1)))), MARK(from(sel(z0, z1))))
   MARK(sel(x0, from(cons(z0, z1)))) -> c8(A__SEL(mark(x0), a__from(cons(mark(z0), z1))), MARK(from(cons(z0, z1))))
   MARK(sel(x0, from(s(z0)))) -> c8(A__SEL(mark(x0), a__from(s(mark(z0)))), MARK(from(s(z0))))
   MARK(sel(x0, from(0))) -> c8(A__SEL(mark(x0), a__from(0)), MARK(from(0)))
   MARK(sel(from(z0), from(x1))) -> c8(A__SEL(a__from(mark(z0)), a__from(mark(x1))), MARK(from(x1)))
   MARK(sel(sel(z0, z1), from(x1))) -> c8(A__SEL(a__sel(mark(z0), mark(z1)), a__from(mark(x1))), MARK(from(x1)))
   MARK(sel(s(z0), from(x1))) -> c8(A__SEL(s(mark(z0)), a__from(mark(x1))), MARK(from(x1)))
   MARK(sel(0, from(x1))) -> c8(A__SEL(0, a__from(mark(x1))), MARK(from(x1)))
   MARK(sel(x0, from(x1))) -> c8(MARK(from(x1)))
   MARK(sel(cons(z0, z1), from(x1))) -> c8(MARK(from(x1)))
   MARK(sel(x0, sel(x1, from(z0)))) -> c8(A__SEL(mark(x0), a__sel(mark(x1), a__from(mark(z0)))), MARK(sel(x1, from(z0))))
   MARK(sel(x0, sel(x1, sel(z0, z1)))) -> c8(A__SEL(mark(x0), a__sel(mark(x1), a__sel(mark(z0), mark(z1)))), MARK(sel(x1, sel(z0, z1))))
   MARK(sel(x0, sel(x1, cons(z0, z1)))) -> c8(A__SEL(mark(x0), a__sel(mark(x1), cons(mark(z0), z1))), MARK(sel(x1, cons(z0, z1))))
   MARK(sel(x0, sel(x1, s(z0)))) -> c8(A__SEL(mark(x0), a__sel(mark(x1), s(mark(z0)))), MARK(sel(x1, s(z0))))
   MARK(sel(x0, sel(x1, 0))) -> c8(A__SEL(mark(x0), a__sel(mark(x1), 0)), MARK(sel(x1, 0)))
   MARK(sel(x0, sel(from(z0), x2))) -> c8(A__SEL(mark(x0), a__sel(a__from(mark(z0)), mark(x2))), MARK(sel(from(z0), x2)))
   MARK(sel(x0, sel(sel(z0, z1), x2))) -> c8(A__SEL(mark(x0), a__sel(a__sel(mark(z0), mark(z1)), mark(x2))), MARK(sel(sel(z0, z1), x2)))
   MARK(sel(x0, sel(cons(z0, z1), x2))) -> c8(A__SEL(mark(x0), a__sel(cons(mark(z0), z1), mark(x2))), MARK(sel(cons(z0, z1), x2)))
   MARK(sel(x0, sel(s(z0), x2))) -> c8(A__SEL(mark(x0), a__sel(s(mark(z0)), mark(x2))), MARK(sel(s(z0), x2)))
   MARK(sel(x0, sel(0, x2))) -> c8(A__SEL(mark(x0), a__sel(0, mark(x2))), MARK(sel(0, x2)))
   MARK(sel(from(z0), sel(x1, x2))) -> c8(A__SEL(a__from(mark(z0)), a__sel(mark(x1), mark(x2))), MARK(sel(x1, x2)))
   MARK(sel(sel(z0, z1), sel(x1, x2))) -> c8(A__SEL(a__sel(mark(z0), mark(z1)), a__sel(mark(x1), mark(x2))), MARK(sel(x1, x2)))
   MARK(sel(s(z0), sel(x1, x2))) -> c8(A__SEL(s(mark(z0)), a__sel(mark(x1), mark(x2))), MARK(sel(x1, x2)))
   MARK(sel(0, sel(x1, x2))) -> c8(A__SEL(0, a__sel(mark(x1), mark(x2))), MARK(sel(x1, x2)))
   MARK(sel(x0, sel(x1, x2))) -> c8(MARK(sel(x1, x2)))
   MARK(sel(cons(z0, z1), sel(x1, x2))) -> c8(MARK(sel(x1, x2)))
   MARK(sel(x0, cons(from(z0), x2))) -> c8(A__SEL(mark(x0), cons(a__from(mark(z0)), x2)), MARK(cons(from(z0), x2)))
   MARK(sel(x0, cons(sel(z0, z1), x2))) -> c8(A__SEL(mark(x0), cons(a__sel(mark(z0), mark(z1)), x2)), MARK(cons(sel(z0, z1), x2)))
   MARK(sel(x0, cons(cons(z0, z1), x2))) -> c8(A__SEL(mark(x0), cons(cons(mark(z0), z1), x2)), MARK(cons(cons(z0, z1), x2)))
   MARK(sel(x0, cons(s(z0), x2))) -> c8(A__SEL(mark(x0), cons(s(mark(z0)), x2)), MARK(cons(s(z0), x2)))
   MARK(sel(x0, cons(0, x2))) -> c8(A__SEL(mark(x0), cons(0, x2)), MARK(cons(0, x2)))
   MARK(sel(from(z0), cons(x1, x2))) -> c8(A__SEL(a__from(mark(z0)), cons(mark(x1), x2)), MARK(cons(x1, x2)))
   MARK(sel(sel(z0, z1), cons(x1, x2))) -> c8(A__SEL(a__sel(mark(z0), mark(z1)), cons(mark(x1), x2)), MARK(cons(x1, x2)))
   MARK(sel(s(z0), cons(x1, x2))) -> c8(A__SEL(s(mark(z0)), cons(mark(x1), x2)), MARK(cons(x1, x2)))
   MARK(sel(0, cons(x1, x2))) -> c8(A__SEL(0, cons(mark(x1), x2)), MARK(cons(x1, x2)))
   MARK(sel(x0, cons(x1, x2))) -> c8(MARK(cons(x1, x2)))
   MARK(sel(cons(z0, z1), cons(x1, x2))) -> c8(MARK(cons(x1, x2)))
   MARK(sel(from(from(z0)), x1)) -> c8(A__SEL(a__from(a__from(mark(z0))), mark(x1)), MARK(x1))
   MARK(sel(from(sel(z0, z1)), x1)) -> c8(A__SEL(a__from(a__sel(mark(z0), mark(z1))), mark(x1)), MARK(x1))
   MARK(sel(from(cons(z0, z1)), x1)) -> c8(A__SEL(a__from(cons(mark(z0), z1)), mark(x1)), MARK(x1))
   MARK(sel(from(s(z0)), x1)) -> c8(A__SEL(a__from(s(mark(z0))), mark(x1)), MARK(x1))
   MARK(sel(from(0), x1)) -> c8(A__SEL(a__from(0), mark(x1)), MARK(x1))
   MARK(sel(from(x0), s(z0))) -> c8(MARK(s(z0)))
   MARK(sel(from(x0), x1)) -> c8(MARK(x1))
   MARK(sel(sel(x0, from(z0)), x2)) -> c8(A__SEL(a__sel(mark(x0), a__from(mark(z0))), mark(x2)), MARK(x2))
   MARK(sel(sel(x0, sel(z0, z1)), x2)) -> c8(A__SEL(a__sel(mark(x0), a__sel(mark(z0), mark(z1))), mark(x2)), MARK(x2))
   MARK(sel(sel(x0, cons(z0, z1)), x2)) -> c8(A__SEL(a__sel(mark(x0), cons(mark(z0), z1)), mark(x2)), MARK(x2))
   MARK(sel(sel(x0, s(z0)), x2)) -> c8(A__SEL(a__sel(mark(x0), s(mark(z0))), mark(x2)), MARK(x2))
   MARK(sel(sel(x0, 0), x2)) -> c8(A__SEL(a__sel(mark(x0), 0), mark(x2)), MARK(x2))
   MARK(sel(sel(from(z0), x1), x2)) -> c8(A__SEL(a__sel(a__from(mark(z0)), mark(x1)), mark(x2)), MARK(x2))
   MARK(sel(sel(sel(z0, z1), x1), x2)) -> c8(A__SEL(a__sel(a__sel(mark(z0), mark(z1)), mark(x1)), mark(x2)), MARK(x2))
   MARK(sel(sel(cons(z0, z1), x1), x2)) -> c8(A__SEL(a__sel(cons(mark(z0), z1), mark(x1)), mark(x2)), MARK(x2))
   MARK(sel(sel(s(z0), x1), x2)) -> c8(A__SEL(a__sel(s(mark(z0)), mark(x1)), mark(x2)), MARK(x2))
   MARK(sel(sel(0, x1), x2)) -> c8(A__SEL(a__sel(0, mark(x1)), mark(x2)), MARK(x2))
   MARK(sel(sel(x0, x1), s(z0))) -> c8(MARK(s(z0)))
   MARK(sel(sel(x0, x1), x2)) -> c8(MARK(x2))
   MARK(sel(s(from(z0)), x1)) -> c8(A__SEL(s(a__from(mark(z0))), mark(x1)), MARK(x1))
   MARK(sel(s(sel(z0, z1)), x1)) -> c8(A__SEL(s(a__sel(mark(z0), mark(z1))), mark(x1)), MARK(x1))
   MARK(sel(s(cons(z0, z1)), x1)) -> c8(A__SEL(s(cons(mark(z0), z1)), mark(x1)), MARK(x1))
   MARK(sel(s(s(z0)), x1)) -> c8(A__SEL(s(s(mark(z0))), mark(x1)), MARK(x1))
   MARK(sel(s(0), x1)) -> c8(A__SEL(s(0), mark(x1)), MARK(x1))
   MARK(sel(s(x0), s(z0))) -> c8(MARK(s(z0)))
   MARK(sel(0, s(z0))) -> c8(MARK(s(z0)))
   A__FROM(from(y0)) -> c(MARK(from(y0)))
   A__FROM(cons(y0, y1)) -> c(MARK(cons(y0, y1)))
   A__FROM(s(y0)) -> c(MARK(s(y0)))
   A__FROM(sel(y0, s(y1))) -> c(MARK(sel(y0, s(y1))))
   A__FROM(sel(y0, 0)) -> c(MARK(sel(y0, 0)))
   A__FROM(sel(cons(y0, y1), y2)) -> c(MARK(sel(cons(y0, y1), y2)))
   A__FROM(sel(y0, from(y1))) -> c(MARK(sel(y0, from(y1))))
   A__FROM(sel(y0, from(from(y1)))) -> c(MARK(sel(y0, from(from(y1)))))
   A__FROM(sel(y0, from(sel(y1, y2)))) -> c(MARK(sel(y0, from(sel(y1, y2)))))
   A__FROM(sel(y0, from(cons(y1, y2)))) -> c(MARK(sel(y0, from(cons(y1, y2)))))
   A__FROM(sel(y0, from(s(y1)))) -> c(MARK(sel(y0, from(s(y1)))))
   A__FROM(sel(y0, from(0))) -> c(MARK(sel(y0, from(0))))
   A__FROM(sel(from(y0), from(y1))) -> c(MARK(sel(from(y0), from(y1))))
   A__FROM(sel(sel(y0, y1), from(y2))) -> c(MARK(sel(sel(y0, y1), from(y2))))
   A__FROM(sel(s(y0), from(y1))) -> c(MARK(sel(s(y0), from(y1))))
   A__FROM(sel(cons(y0, y1), from(y2))) -> c(MARK(sel(cons(y0, y1), from(y2))))
   A__FROM(sel(0, from(y0))) -> c(MARK(sel(0, from(y0))))
   A__FROM(sel(y0, sel(y1, from(y2)))) -> c(MARK(sel(y0, sel(y1, from(y2)))))
   A__FROM(sel(y0, sel(y1, sel(y2, y3)))) -> c(MARK(sel(y0, sel(y1, sel(y2, y3)))))
   A__FROM(sel(y0, sel(y1, cons(y2, y3)))) -> c(MARK(sel(y0, sel(y1, cons(y2, y3)))))
   A__FROM(sel(y0, sel(y1, s(y2)))) -> c(MARK(sel(y0, sel(y1, s(y2)))))
   A__FROM(sel(y0, sel(y1, 0))) -> c(MARK(sel(y0, sel(y1, 0))))
   A__FROM(sel(y0, sel(from(y1), y2))) -> c(MARK(sel(y0, sel(from(y1), y2))))
   A__FROM(sel(y0, sel(sel(y1, y2), y3))) -> c(MARK(sel(y0, sel(sel(y1, y2), y3))))
   A__FROM(sel(y0, sel(cons(y1, y2), y3))) -> c(MARK(sel(y0, sel(cons(y1, y2), y3))))
   A__FROM(sel(y0, sel(s(y1), y2))) -> c(MARK(sel(y0, sel(s(y1), y2))))
   A__FROM(sel(y0, sel(0, y1))) -> c(MARK(sel(y0, sel(0, y1))))
   A__FROM(sel(from(y0), sel(y1, y2))) -> c(MARK(sel(from(y0), sel(y1, y2))))
   A__FROM(sel(sel(y0, y1), sel(y2, y3))) -> c(MARK(sel(sel(y0, y1), sel(y2, y3))))
   A__FROM(sel(s(y0), sel(y1, y2))) -> c(MARK(sel(s(y0), sel(y1, y2))))
   A__FROM(sel(y0, sel(y1, y2))) -> c(MARK(sel(y0, sel(y1, y2))))
   A__FROM(sel(cons(y0, y1), sel(y2, y3))) -> c(MARK(sel(cons(y0, y1), sel(y2, y3))))
   A__FROM(sel(0, sel(y0, y1))) -> c(MARK(sel(0, sel(y0, y1))))
   A__FROM(sel(y0, cons(from(y1), y2))) -> c(MARK(sel(y0, cons(from(y1), y2))))
   A__FROM(sel(y0, cons(sel(y1, y2), y3))) -> c(MARK(sel(y0, cons(sel(y1, y2), y3))))
   A__FROM(sel(y0, cons(cons(y1, y2), y3))) -> c(MARK(sel(y0, cons(cons(y1, y2), y3))))
   A__FROM(sel(y0, cons(s(y1), y2))) -> c(MARK(sel(y0, cons(s(y1), y2))))
   A__FROM(sel(y0, cons(0, y1))) -> c(MARK(sel(y0, cons(0, y1))))
   A__FROM(sel(from(y0), cons(y1, y2))) -> c(MARK(sel(from(y0), cons(y1, y2))))
   A__FROM(sel(sel(y0, y1), cons(y2, y3))) -> c(MARK(sel(sel(y0, y1), cons(y2, y3))))
   A__FROM(sel(s(y0), cons(y1, y2))) -> c(MARK(sel(s(y0), cons(y1, y2))))
   A__FROM(sel(cons(y0, y1), cons(y2, y3))) -> c(MARK(sel(cons(y0, y1), cons(y2, y3))))
   A__FROM(sel(0, cons(y0, y1))) -> c(MARK(sel(0, cons(y0, y1))))
   A__FROM(sel(from(from(y0)), y1)) -> c(MARK(sel(from(from(y0)), y1)))
   A__FROM(sel(from(sel(y0, y1)), y2)) -> c(MARK(sel(from(sel(y0, y1)), y2)))
   A__FROM(sel(from(cons(y0, y1)), y2)) -> c(MARK(sel(from(cons(y0, y1)), y2)))
   A__FROM(sel(from(s(y0)), y1)) -> c(MARK(sel(from(s(y0)), y1)))
   A__FROM(sel(from(0), y0)) -> c(MARK(sel(from(0), y0)))
   A__FROM(sel(from(y0), y1)) -> c(MARK(sel(from(y0), y1)))
   A__FROM(sel(from(y0), s(y1))) -> c(MARK(sel(from(y0), s(y1))))
   A__FROM(sel(from(y0), 0)) -> c(MARK(sel(from(y0), 0)))
   A__FROM(sel(sel(y0, from(y1)), y2)) -> c(MARK(sel(sel(y0, from(y1)), y2)))
   A__FROM(sel(sel(y0, sel(y1, y2)), y3)) -> c(MARK(sel(sel(y0, sel(y1, y2)), y3)))
   A__FROM(sel(sel(y0, cons(y1, y2)), y3)) -> c(MARK(sel(sel(y0, cons(y1, y2)), y3)))
   A__FROM(sel(sel(y0, s(y1)), y2)) -> c(MARK(sel(sel(y0, s(y1)), y2)))
   A__FROM(sel(sel(y0, 0), y1)) -> c(MARK(sel(sel(y0, 0), y1)))
   A__FROM(sel(sel(from(y0), y1), y2)) -> c(MARK(sel(sel(from(y0), y1), y2)))
   A__FROM(sel(sel(sel(y0, y1), y2), y3)) -> c(MARK(sel(sel(sel(y0, y1), y2), y3)))
   A__FROM(sel(sel(cons(y0, y1), y2), y3)) -> c(MARK(sel(sel(cons(y0, y1), y2), y3)))
   A__FROM(sel(sel(s(y0), y1), y2)) -> c(MARK(sel(sel(s(y0), y1), y2)))
   A__FROM(sel(sel(0, y0), y1)) -> c(MARK(sel(sel(0, y0), y1)))
   A__FROM(sel(sel(y0, y1), s(y2))) -> c(MARK(sel(sel(y0, y1), s(y2))))
   A__FROM(sel(sel(y0, y1), 0)) -> c(MARK(sel(sel(y0, y1), 0)))
   A__FROM(sel(sel(y0, y1), y2)) -> c(MARK(sel(sel(y0, y1), y2)))
   A__FROM(sel(s(from(y0)), y1)) -> c(MARK(sel(s(from(y0)), y1)))
   A__FROM(sel(s(sel(y0, y1)), y2)) -> c(MARK(sel(s(sel(y0, y1)), y2)))
   A__FROM(sel(s(cons(y0, y1)), y2)) -> c(MARK(sel(s(cons(y0, y1)), y2)))
   A__FROM(sel(s(s(y0)), y1)) -> c(MARK(sel(s(s(y0)), y1)))
   A__FROM(sel(s(0), y0)) -> c(MARK(sel(s(0), y0)))
   A__FROM(sel(s(y0), y1)) -> c(MARK(sel(s(y0), y1)))
   A__FROM(sel(s(y0), s(y1))) -> c(MARK(sel(s(y0), s(y1))))
   A__FROM(sel(s(y0), 0)) -> c(MARK(sel(s(y0), 0)))
   A__FROM(sel(y0, cons(y1, y2))) -> c(MARK(sel(y0, cons(y1, y2))))
   A__FROM(sel(0, s(y0))) -> c(MARK(sel(0, s(y0))))
   MARK(from(from(z0))) -> c6(A__FROM(a__from(mark(z0))), MARK(from(z0)))
   MARK(from(sel(z0, z1))) -> c6(A__FROM(a__sel(mark(z0), mark(z1))), MARK(sel(z0, z1)))
   MARK(from(cons(z0, z1))) -> c6(A__FROM(cons(mark(z0), z1)), MARK(cons(z0, z1)))
   MARK(from(s(z0))) -> c6(A__FROM(s(mark(z0))), MARK(s(z0)))
   MARK(from(0)) -> c6(A__FROM(0), MARK(0))
S tuples:
   A__SEL(0, cons(z0, z1)) -> c2(MARK(z0))
   MARK(cons(z0, z1)) -> c9(MARK(z0))
   MARK(s(z0)) -> c10(MARK(z0))
   A__SEL(s(x0), cons(x1, s(z0))) -> c3(MARK(x0))
   A__SEL(s(x0), cons(x1, 0)) -> c3(MARK(x0))
   A__SEL(s(cons(z0, z1)), cons(x1, x2)) -> c3(MARK(cons(z0, z1)))
   A__SEL(s(x0), cons(x1, s(z0))) -> c4(MARK(s(z0)))
   A__SEL(s(cons(z0, z1)), cons(x1, x2)) -> c4(MARK(x2))
   MARK(sel(x0, s(z0))) -> c7(MARK(x0))
   MARK(sel(x0, 0)) -> c7(MARK(x0))
   MARK(sel(cons(z0, z1), x1)) -> c7(MARK(cons(z0, z1)))
   MARK(sel(x0, s(z0))) -> c8(MARK(s(z0)))
   MARK(sel(cons(z0, z1), x1)) -> c8(MARK(x1))
   A__SEL(s(x0), cons(x1, from(x2))) -> c3(A__SEL(mark(x0), cons(mark(mark(x2)), from(s(mark(x2))))), MARK(x0))
   A__SEL(s(x0), cons(x1, from(from(z0)))) -> c3(A__SEL(mark(x0), a__from(a__from(mark(z0)))), MARK(x0))
   A__SEL(s(x0), cons(x1, from(sel(z0, z1)))) -> c3(A__SEL(mark(x0), a__from(a__sel(mark(z0), mark(z1)))), MARK(x0))
   A__SEL(s(x0), cons(x1, from(cons(z0, z1)))) -> c3(A__SEL(mark(x0), a__from(cons(mark(z0), z1))), MARK(x0))
   A__SEL(s(x0), cons(x1, from(s(z0)))) -> c3(A__SEL(mark(x0), a__from(s(mark(z0)))), MARK(x0))
   A__SEL(s(x0), cons(x1, from(0))) -> c3(A__SEL(mark(x0), a__from(0)), MARK(x0))
   A__SEL(s(from(z0)), cons(x1, from(x2))) -> c3(A__SEL(a__from(mark(z0)), a__from(mark(x2))), MARK(from(z0)))
   A__SEL(s(sel(z0, z1)), cons(x1, from(x2))) -> c3(A__SEL(a__sel(mark(z0), mark(z1)), a__from(mark(x2))), MARK(sel(z0, z1)))
   A__SEL(s(s(z0)), cons(x1, from(x2))) -> c3(A__SEL(s(mark(z0)), a__from(mark(x2))), MARK(s(z0)))
   A__SEL(s(x0), cons(x1, from(x2))) -> c3(MARK(x0))
   A__SEL(s(cons(z0, z1)), cons(x1, from(x2))) -> c3(MARK(cons(z0, z1)))
   A__SEL(s(0), cons(x1, from(x2))) -> c3(A__SEL(0, a__from(mark(x2))))
   A__SEL(s(x0), cons(x1, sel(x2, from(z0)))) -> c3(A__SEL(mark(x0), a__sel(mark(x2), a__from(mark(z0)))), MARK(x0))
   A__SEL(s(x0), cons(x1, sel(x2, sel(z0, z1)))) -> c3(A__SEL(mark(x0), a__sel(mark(x2), a__sel(mark(z0), mark(z1)))), MARK(x0))
   A__SEL(s(x0), cons(x1, sel(x2, cons(z0, z1)))) -> c3(A__SEL(mark(x0), a__sel(mark(x2), cons(mark(z0), z1))), MARK(x0))
   A__SEL(s(x0), cons(x1, sel(x2, s(z0)))) -> c3(A__SEL(mark(x0), a__sel(mark(x2), s(mark(z0)))), MARK(x0))
   A__SEL(s(x0), cons(x1, sel(x2, 0))) -> c3(A__SEL(mark(x0), a__sel(mark(x2), 0)), MARK(x0))
   A__SEL(s(x0), cons(x1, sel(from(z0), x3))) -> c3(A__SEL(mark(x0), a__sel(a__from(mark(z0)), mark(x3))), MARK(x0))
   A__SEL(s(x0), cons(x1, sel(sel(z0, z1), x3))) -> c3(A__SEL(mark(x0), a__sel(a__sel(mark(z0), mark(z1)), mark(x3))), MARK(x0))
   A__SEL(s(x0), cons(x1, sel(cons(z0, z1), x3))) -> c3(A__SEL(mark(x0), a__sel(cons(mark(z0), z1), mark(x3))), MARK(x0))
   A__SEL(s(x0), cons(x1, sel(s(z0), x3))) -> c3(A__SEL(mark(x0), a__sel(s(mark(z0)), mark(x3))), MARK(x0))
   A__SEL(s(x0), cons(x1, sel(0, x3))) -> c3(A__SEL(mark(x0), a__sel(0, mark(x3))), MARK(x0))
   A__SEL(s(from(z0)), cons(x1, sel(x2, x3))) -> c3(A__SEL(a__from(mark(z0)), a__sel(mark(x2), mark(x3))), MARK(from(z0)))
   A__SEL(s(sel(z0, z1)), cons(x1, sel(x2, x3))) -> c3(A__SEL(a__sel(mark(z0), mark(z1)), a__sel(mark(x2), mark(x3))), MARK(sel(z0, z1)))
   A__SEL(s(s(z0)), cons(x1, sel(x2, x3))) -> c3(A__SEL(s(mark(z0)), a__sel(mark(x2), mark(x3))), MARK(s(z0)))
   A__SEL(s(x0), cons(x1, sel(x2, x3))) -> c3(MARK(x0))
   A__SEL(s(cons(z0, z1)), cons(x1, sel(x2, x3))) -> c3(MARK(cons(z0, z1)))
   A__SEL(s(0), cons(x1, sel(x2, x3))) -> c3(A__SEL(0, a__sel(mark(x2), mark(x3))))
   A__SEL(s(x0), cons(x1, cons(from(z0), x3))) -> c3(A__SEL(mark(x0), cons(a__from(mark(z0)), x3)), MARK(x0))
   A__SEL(s(x0), cons(x1, cons(sel(z0, z1), x3))) -> c3(A__SEL(mark(x0), cons(a__sel(mark(z0), mark(z1)), x3)), MARK(x0))
   A__SEL(s(x0), cons(x1, cons(cons(z0, z1), x3))) -> c3(A__SEL(mark(x0), cons(cons(mark(z0), z1), x3)), MARK(x0))
   A__SEL(s(x0), cons(x1, cons(s(z0), x3))) -> c3(A__SEL(mark(x0), cons(s(mark(z0)), x3)), MARK(x0))
   A__SEL(s(x0), cons(x1, cons(0, x3))) -> c3(A__SEL(mark(x0), cons(0, x3)), MARK(x0))
   A__SEL(s(from(z0)), cons(x1, cons(x2, x3))) -> c3(A__SEL(a__from(mark(z0)), cons(mark(x2), x3)), MARK(from(z0)))
   A__SEL(s(sel(z0, z1)), cons(x1, cons(x2, x3))) -> c3(A__SEL(a__sel(mark(z0), mark(z1)), cons(mark(x2), x3)), MARK(sel(z0, z1)))
   A__SEL(s(s(z0)), cons(x1, cons(x2, x3))) -> c3(A__SEL(s(mark(z0)), cons(mark(x2), x3)), MARK(s(z0)))
   A__SEL(s(cons(z0, z1)), cons(x1, cons(x2, x3))) -> c3(MARK(cons(z0, z1)))
   A__SEL(s(0), cons(x1, cons(x2, x3))) -> c3(A__SEL(0, cons(mark(x2), x3)))
   A__SEL(s(from(from(z0))), cons(x1, x2)) -> c3(A__SEL(a__from(a__from(mark(z0))), mark(x2)), MARK(from(from(z0))))
   A__SEL(s(from(sel(z0, z1))), cons(x1, x2)) -> c3(A__SEL(a__from(a__sel(mark(z0), mark(z1))), mark(x2)), MARK(from(sel(z0, z1))))
   A__SEL(s(from(cons(z0, z1))), cons(x1, x2)) -> c3(A__SEL(a__from(cons(mark(z0), z1)), mark(x2)), MARK(from(cons(z0, z1))))
   A__SEL(s(from(s(z0))), cons(x1, x2)) -> c3(A__SEL(a__from(s(mark(z0))), mark(x2)), MARK(from(s(z0))))
   A__SEL(s(from(0)), cons(x1, x2)) -> c3(A__SEL(a__from(0), mark(x2)), MARK(from(0)))
   A__SEL(s(from(x0)), cons(x1, x2)) -> c3(MARK(from(x0)))
   A__SEL(s(from(x0)), cons(x1, s(z0))) -> c3(MARK(from(x0)))
   A__SEL(s(from(x0)), cons(x1, 0)) -> c3(MARK(from(x0)))
   A__SEL(s(sel(x0, from(z0))), cons(x2, x3)) -> c3(A__SEL(a__sel(mark(x0), a__from(mark(z0))), mark(x3)), MARK(sel(x0, from(z0))))
   A__SEL(s(sel(x0, sel(z0, z1))), cons(x2, x3)) -> c3(A__SEL(a__sel(mark(x0), a__sel(mark(z0), mark(z1))), mark(x3)), MARK(sel(x0, sel(z0, z1))))
   A__SEL(s(sel(x0, cons(z0, z1))), cons(x2, x3)) -> c3(A__SEL(a__sel(mark(x0), cons(mark(z0), z1)), mark(x3)), MARK(sel(x0, cons(z0, z1))))
   A__SEL(s(sel(x0, s(z0))), cons(x2, x3)) -> c3(A__SEL(a__sel(mark(x0), s(mark(z0))), mark(x3)), MARK(sel(x0, s(z0))))
   A__SEL(s(sel(x0, 0)), cons(x2, x3)) -> c3(A__SEL(a__sel(mark(x0), 0), mark(x3)), MARK(sel(x0, 0)))
   A__SEL(s(sel(from(z0), x1)), cons(x2, x3)) -> c3(A__SEL(a__sel(a__from(mark(z0)), mark(x1)), mark(x3)), MARK(sel(from(z0), x1)))
   A__SEL(s(sel(sel(z0, z1), x1)), cons(x2, x3)) -> c3(A__SEL(a__sel(a__sel(mark(z0), mark(z1)), mark(x1)), mark(x3)), MARK(sel(sel(z0, z1), x1)))
   A__SEL(s(sel(cons(z0, z1), x1)), cons(x2, x3)) -> c3(A__SEL(a__sel(cons(mark(z0), z1), mark(x1)), mark(x3)), MARK(sel(cons(z0, z1), x1)))
   A__SEL(s(sel(s(z0), x1)), cons(x2, x3)) -> c3(A__SEL(a__sel(s(mark(z0)), mark(x1)), mark(x3)), MARK(sel(s(z0), x1)))
   A__SEL(s(sel(0, x1)), cons(x2, x3)) -> c3(A__SEL(a__sel(0, mark(x1)), mark(x3)), MARK(sel(0, x1)))
   A__SEL(s(sel(x0, x1)), cons(x2, s(z0))) -> c3(MARK(sel(x0, x1)))
   A__SEL(s(sel(x0, x1)), cons(x2, 0)) -> c3(MARK(sel(x0, x1)))
   A__SEL(s(sel(x0, x1)), cons(x2, x3)) -> c3(MARK(sel(x0, x1)))
   A__SEL(s(s(from(z0))), cons(x1, x2)) -> c3(A__SEL(s(a__from(mark(z0))), mark(x2)), MARK(s(from(z0))))
   A__SEL(s(s(sel(z0, z1))), cons(x1, x2)) -> c3(A__SEL(s(a__sel(mark(z0), mark(z1))), mark(x2)), MARK(s(sel(z0, z1))))
   A__SEL(s(s(cons(z0, z1))), cons(x1, x2)) -> c3(A__SEL(s(cons(mark(z0), z1)), mark(x2)), MARK(s(cons(z0, z1))))
   A__SEL(s(s(s(z0))), cons(x1, x2)) -> c3(A__SEL(s(s(mark(z0))), mark(x2)), MARK(s(s(z0))))
   A__SEL(s(s(0)), cons(x1, x2)) -> c3(A__SEL(s(0), mark(x2)), MARK(s(0)))
   A__SEL(s(s(x0)), cons(x1, x2)) -> c3(MARK(s(x0)))
   A__SEL(s(s(x0)), cons(x1, s(z0))) -> c3(MARK(s(x0)))
   A__SEL(s(s(x0)), cons(x1, 0)) -> c3(MARK(s(x0)))
   A__SEL(s(x0), cons(x1, from(x2))) -> c4(A__SEL(mark(x0), cons(mark(mark(x2)), from(s(mark(x2))))), MARK(from(x2)))
   A__SEL(s(x0), cons(x1, from(from(z0)))) -> c4(A__SEL(mark(x0), a__from(a__from(mark(z0)))), MARK(from(from(z0))))
   A__SEL(s(x0), cons(x1, from(sel(z0, z1)))) -> c4(A__SEL(mark(x0), a__from(a__sel(mark(z0), mark(z1)))), MARK(from(sel(z0, z1))))
   A__SEL(s(x0), cons(x1, from(cons(z0, z1)))) -> c4(A__SEL(mark(x0), a__from(cons(mark(z0), z1))), MARK(from(cons(z0, z1))))
   A__SEL(s(x0), cons(x1, from(s(z0)))) -> c4(A__SEL(mark(x0), a__from(s(mark(z0)))), MARK(from(s(z0))))
   A__SEL(s(x0), cons(x1, from(0))) -> c4(A__SEL(mark(x0), a__from(0)), MARK(from(0)))
   A__SEL(s(from(z0)), cons(x1, from(x2))) -> c4(A__SEL(a__from(mark(z0)), a__from(mark(x2))), MARK(from(x2)))
   A__SEL(s(sel(z0, z1)), cons(x1, from(x2))) -> c4(A__SEL(a__sel(mark(z0), mark(z1)), a__from(mark(x2))), MARK(from(x2)))
   A__SEL(s(s(z0)), cons(x1, from(x2))) -> c4(A__SEL(s(mark(z0)), a__from(mark(x2))), MARK(from(x2)))
   A__SEL(s(0), cons(x1, from(x2))) -> c4(A__SEL(0, a__from(mark(x2))), MARK(from(x2)))
   A__SEL(s(x0), cons(x1, from(x2))) -> c4(MARK(from(x2)))
   A__SEL(s(cons(z0, z1)), cons(x1, from(x2))) -> c4(MARK(from(x2)))
   A__SEL(s(x0), cons(x1, sel(x2, from(z0)))) -> c4(A__SEL(mark(x0), a__sel(mark(x2), a__from(mark(z0)))), MARK(sel(x2, from(z0))))
   A__SEL(s(x0), cons(x1, sel(x2, sel(z0, z1)))) -> c4(A__SEL(mark(x0), a__sel(mark(x2), a__sel(mark(z0), mark(z1)))), MARK(sel(x2, sel(z0, z1))))
   A__SEL(s(x0), cons(x1, sel(x2, cons(z0, z1)))) -> c4(A__SEL(mark(x0), a__sel(mark(x2), cons(mark(z0), z1))), MARK(sel(x2, cons(z0, z1))))
   A__SEL(s(x0), cons(x1, sel(x2, s(z0)))) -> c4(A__SEL(mark(x0), a__sel(mark(x2), s(mark(z0)))), MARK(sel(x2, s(z0))))
   A__SEL(s(x0), cons(x1, sel(x2, 0))) -> c4(A__SEL(mark(x0), a__sel(mark(x2), 0)), MARK(sel(x2, 0)))
   A__SEL(s(x0), cons(x1, sel(from(z0), x3))) -> c4(A__SEL(mark(x0), a__sel(a__from(mark(z0)), mark(x3))), MARK(sel(from(z0), x3)))
   A__SEL(s(x0), cons(x1, sel(sel(z0, z1), x3))) -> c4(A__SEL(mark(x0), a__sel(a__sel(mark(z0), mark(z1)), mark(x3))), MARK(sel(sel(z0, z1), x3)))
   A__SEL(s(x0), cons(x1, sel(cons(z0, z1), x3))) -> c4(A__SEL(mark(x0), a__sel(cons(mark(z0), z1), mark(x3))), MARK(sel(cons(z0, z1), x3)))
   A__SEL(s(x0), cons(x1, sel(s(z0), x3))) -> c4(A__SEL(mark(x0), a__sel(s(mark(z0)), mark(x3))), MARK(sel(s(z0), x3)))
   A__SEL(s(x0), cons(x1, sel(0, x3))) -> c4(A__SEL(mark(x0), a__sel(0, mark(x3))), MARK(sel(0, x3)))
   A__SEL(s(from(z0)), cons(x1, sel(x2, x3))) -> c4(A__SEL(a__from(mark(z0)), a__sel(mark(x2), mark(x3))), MARK(sel(x2, x3)))
   A__SEL(s(sel(z0, z1)), cons(x1, sel(x2, x3))) -> c4(A__SEL(a__sel(mark(z0), mark(z1)), a__sel(mark(x2), mark(x3))), MARK(sel(x2, x3)))
   A__SEL(s(s(z0)), cons(x1, sel(x2, x3))) -> c4(A__SEL(s(mark(z0)), a__sel(mark(x2), mark(x3))), MARK(sel(x2, x3)))
   A__SEL(s(0), cons(x1, sel(x2, x3))) -> c4(A__SEL(0, a__sel(mark(x2), mark(x3))), MARK(sel(x2, x3)))
   A__SEL(s(x0), cons(x1, sel(x2, x3))) -> c4(MARK(sel(x2, x3)))
   A__SEL(s(cons(z0, z1)), cons(x1, sel(x2, x3))) -> c4(MARK(sel(x2, x3)))
   A__SEL(s(x0), cons(x1, cons(from(z0), x3))) -> c4(A__SEL(mark(x0), cons(a__from(mark(z0)), x3)), MARK(cons(from(z0), x3)))
   A__SEL(s(x0), cons(x1, cons(sel(z0, z1), x3))) -> c4(A__SEL(mark(x0), cons(a__sel(mark(z0), mark(z1)), x3)), MARK(cons(sel(z0, z1), x3)))
   A__SEL(s(x0), cons(x1, cons(cons(z0, z1), x3))) -> c4(A__SEL(mark(x0), cons(cons(mark(z0), z1), x3)), MARK(cons(cons(z0, z1), x3)))
   A__SEL(s(x0), cons(x1, cons(s(z0), x3))) -> c4(A__SEL(mark(x0), cons(s(mark(z0)), x3)), MARK(cons(s(z0), x3)))
   A__SEL(s(x0), cons(x1, cons(0, x3))) -> c4(A__SEL(mark(x0), cons(0, x3)), MARK(cons(0, x3)))
   A__SEL(s(from(z0)), cons(x1, cons(x2, x3))) -> c4(A__SEL(a__from(mark(z0)), cons(mark(x2), x3)), MARK(cons(x2, x3)))
   A__SEL(s(sel(z0, z1)), cons(x1, cons(x2, x3))) -> c4(A__SEL(a__sel(mark(z0), mark(z1)), cons(mark(x2), x3)), MARK(cons(x2, x3)))
   A__SEL(s(s(z0)), cons(x1, cons(x2, x3))) -> c4(A__SEL(s(mark(z0)), cons(mark(x2), x3)), MARK(cons(x2, x3)))
   A__SEL(s(0), cons(x1, cons(x2, x3))) -> c4(A__SEL(0, cons(mark(x2), x3)), MARK(cons(x2, x3)))
   A__SEL(s(x0), cons(x1, cons(x2, x3))) -> c4(MARK(cons(x2, x3)))
   A__SEL(s(cons(z0, z1)), cons(x1, cons(x2, x3))) -> c4(MARK(cons(x2, x3)))
   A__SEL(s(from(from(z0))), cons(x1, x2)) -> c4(A__SEL(a__from(a__from(mark(z0))), mark(x2)), MARK(x2))
   A__SEL(s(from(sel(z0, z1))), cons(x1, x2)) -> c4(A__SEL(a__from(a__sel(mark(z0), mark(z1))), mark(x2)), MARK(x2))
   A__SEL(s(from(cons(z0, z1))), cons(x1, x2)) -> c4(A__SEL(a__from(cons(mark(z0), z1)), mark(x2)), MARK(x2))
   A__SEL(s(from(s(z0))), cons(x1, x2)) -> c4(A__SEL(a__from(s(mark(z0))), mark(x2)), MARK(x2))
   A__SEL(s(from(0)), cons(x1, x2)) -> c4(A__SEL(a__from(0), mark(x2)), MARK(x2))
   A__SEL(s(from(x0)), cons(x1, s(z0))) -> c4(MARK(s(z0)))
   A__SEL(s(from(x0)), cons(x1, x2)) -> c4(MARK(x2))
   A__SEL(s(sel(x0, from(z0))), cons(x2, x3)) -> c4(A__SEL(a__sel(mark(x0), a__from(mark(z0))), mark(x3)), MARK(x3))
   A__SEL(s(sel(x0, sel(z0, z1))), cons(x2, x3)) -> c4(A__SEL(a__sel(mark(x0), a__sel(mark(z0), mark(z1))), mark(x3)), MARK(x3))
   A__SEL(s(sel(x0, cons(z0, z1))), cons(x2, x3)) -> c4(A__SEL(a__sel(mark(x0), cons(mark(z0), z1)), mark(x3)), MARK(x3))
   A__SEL(s(sel(x0, s(z0))), cons(x2, x3)) -> c4(A__SEL(a__sel(mark(x0), s(mark(z0))), mark(x3)), MARK(x3))
   A__SEL(s(sel(x0, 0)), cons(x2, x3)) -> c4(A__SEL(a__sel(mark(x0), 0), mark(x3)), MARK(x3))
   A__SEL(s(sel(from(z0), x1)), cons(x2, x3)) -> c4(A__SEL(a__sel(a__from(mark(z0)), mark(x1)), mark(x3)), MARK(x3))
   A__SEL(s(sel(sel(z0, z1), x1)), cons(x2, x3)) -> c4(A__SEL(a__sel(a__sel(mark(z0), mark(z1)), mark(x1)), mark(x3)), MARK(x3))
   A__SEL(s(sel(cons(z0, z1), x1)), cons(x2, x3)) -> c4(A__SEL(a__sel(cons(mark(z0), z1), mark(x1)), mark(x3)), MARK(x3))
   A__SEL(s(sel(s(z0), x1)), cons(x2, x3)) -> c4(A__SEL(a__sel(s(mark(z0)), mark(x1)), mark(x3)), MARK(x3))
   A__SEL(s(sel(0, x1)), cons(x2, x3)) -> c4(A__SEL(a__sel(0, mark(x1)), mark(x3)), MARK(x3))
   A__SEL(s(sel(x0, x1)), cons(x2, s(z0))) -> c4(MARK(s(z0)))
   A__SEL(s(sel(x0, x1)), cons(x2, x3)) -> c4(MARK(x3))
   A__SEL(s(s(from(z0))), cons(x1, x2)) -> c4(A__SEL(s(a__from(mark(z0))), mark(x2)), MARK(x2))
   A__SEL(s(s(sel(z0, z1))), cons(x1, x2)) -> c4(A__SEL(s(a__sel(mark(z0), mark(z1))), mark(x2)), MARK(x2))
   A__SEL(s(s(cons(z0, z1))), cons(x1, x2)) -> c4(A__SEL(s(cons(mark(z0), z1)), mark(x2)), MARK(x2))
   A__SEL(s(s(s(z0))), cons(x1, x2)) -> c4(A__SEL(s(s(mark(z0))), mark(x2)), MARK(x2))
   A__SEL(s(s(0)), cons(x1, x2)) -> c4(A__SEL(s(0), mark(x2)), MARK(x2))
   A__SEL(s(s(x0)), cons(x1, s(z0))) -> c4(MARK(s(z0)))
   A__SEL(s(0), cons(x0, s(z0))) -> c4(MARK(s(z0)))
   MARK(sel(x0, from(x1))) -> c7(A__SEL(mark(x0), cons(mark(mark(x1)), from(s(mark(x1))))), MARK(x0))
   MARK(sel(x0, from(from(z0)))) -> c7(A__SEL(mark(x0), a__from(a__from(mark(z0)))), MARK(x0))
   MARK(sel(x0, from(sel(z0, z1)))) -> c7(A__SEL(mark(x0), a__from(a__sel(mark(z0), mark(z1)))), MARK(x0))
   MARK(sel(x0, from(cons(z0, z1)))) -> c7(A__SEL(mark(x0), a__from(cons(mark(z0), z1))), MARK(x0))
   MARK(sel(x0, from(s(z0)))) -> c7(A__SEL(mark(x0), a__from(s(mark(z0)))), MARK(x0))
   MARK(sel(x0, from(0))) -> c7(A__SEL(mark(x0), a__from(0)), MARK(x0))
   MARK(sel(from(z0), from(x1))) -> c7(A__SEL(a__from(mark(z0)), a__from(mark(x1))), MARK(from(z0)))
   MARK(sel(sel(z0, z1), from(x1))) -> c7(A__SEL(a__sel(mark(z0), mark(z1)), a__from(mark(x1))), MARK(sel(z0, z1)))
   MARK(sel(s(z0), from(x1))) -> c7(A__SEL(s(mark(z0)), a__from(mark(x1))), MARK(s(z0)))
   MARK(sel(x0, from(x1))) -> c7(MARK(x0))
   MARK(sel(cons(z0, z1), from(x1))) -> c7(MARK(cons(z0, z1)))
   MARK(sel(0, from(x1))) -> c7(A__SEL(0, a__from(mark(x1))))
   MARK(sel(x0, sel(x1, from(z0)))) -> c7(A__SEL(mark(x0), a__sel(mark(x1), a__from(mark(z0)))), MARK(x0))
   MARK(sel(x0, sel(x1, sel(z0, z1)))) -> c7(A__SEL(mark(x0), a__sel(mark(x1), a__sel(mark(z0), mark(z1)))), MARK(x0))
   MARK(sel(x0, sel(x1, cons(z0, z1)))) -> c7(A__SEL(mark(x0), a__sel(mark(x1), cons(mark(z0), z1))), MARK(x0))
   MARK(sel(x0, sel(x1, s(z0)))) -> c7(A__SEL(mark(x0), a__sel(mark(x1), s(mark(z0)))), MARK(x0))
   MARK(sel(x0, sel(x1, 0))) -> c7(A__SEL(mark(x0), a__sel(mark(x1), 0)), MARK(x0))
   MARK(sel(x0, sel(from(z0), x2))) -> c7(A__SEL(mark(x0), a__sel(a__from(mark(z0)), mark(x2))), MARK(x0))
   MARK(sel(x0, sel(sel(z0, z1), x2))) -> c7(A__SEL(mark(x0), a__sel(a__sel(mark(z0), mark(z1)), mark(x2))), MARK(x0))
   MARK(sel(x0, sel(cons(z0, z1), x2))) -> c7(A__SEL(mark(x0), a__sel(cons(mark(z0), z1), mark(x2))), MARK(x0))
   MARK(sel(x0, sel(s(z0), x2))) -> c7(A__SEL(mark(x0), a__sel(s(mark(z0)), mark(x2))), MARK(x0))
   MARK(sel(x0, sel(0, x2))) -> c7(A__SEL(mark(x0), a__sel(0, mark(x2))), MARK(x0))
   MARK(sel(from(z0), sel(x1, x2))) -> c7(A__SEL(a__from(mark(z0)), a__sel(mark(x1), mark(x2))), MARK(from(z0)))
   MARK(sel(sel(z0, z1), sel(x1, x2))) -> c7(A__SEL(a__sel(mark(z0), mark(z1)), a__sel(mark(x1), mark(x2))), MARK(sel(z0, z1)))
   MARK(sel(s(z0), sel(x1, x2))) -> c7(A__SEL(s(mark(z0)), a__sel(mark(x1), mark(x2))), MARK(s(z0)))
   MARK(sel(x0, sel(x1, x2))) -> c7(MARK(x0))
   MARK(sel(cons(z0, z1), sel(x1, x2))) -> c7(MARK(cons(z0, z1)))
   MARK(sel(0, sel(x1, x2))) -> c7(A__SEL(0, a__sel(mark(x1), mark(x2))))
   MARK(sel(x0, cons(from(z0), x2))) -> c7(A__SEL(mark(x0), cons(a__from(mark(z0)), x2)), MARK(x0))
   MARK(sel(x0, cons(sel(z0, z1), x2))) -> c7(A__SEL(mark(x0), cons(a__sel(mark(z0), mark(z1)), x2)), MARK(x0))
   MARK(sel(x0, cons(cons(z0, z1), x2))) -> c7(A__SEL(mark(x0), cons(cons(mark(z0), z1), x2)), MARK(x0))
   MARK(sel(x0, cons(s(z0), x2))) -> c7(A__SEL(mark(x0), cons(s(mark(z0)), x2)), MARK(x0))
   MARK(sel(x0, cons(0, x2))) -> c7(A__SEL(mark(x0), cons(0, x2)), MARK(x0))
   MARK(sel(from(z0), cons(x1, x2))) -> c7(A__SEL(a__from(mark(z0)), cons(mark(x1), x2)), MARK(from(z0)))
   MARK(sel(sel(z0, z1), cons(x1, x2))) -> c7(A__SEL(a__sel(mark(z0), mark(z1)), cons(mark(x1), x2)), MARK(sel(z0, z1)))
   MARK(sel(s(z0), cons(x1, x2))) -> c7(A__SEL(s(mark(z0)), cons(mark(x1), x2)), MARK(s(z0)))
   MARK(sel(cons(z0, z1), cons(x1, x2))) -> c7(MARK(cons(z0, z1)))
   MARK(sel(0, cons(x1, x2))) -> c7(A__SEL(0, cons(mark(x1), x2)))
   MARK(sel(from(from(z0)), x1)) -> c7(A__SEL(a__from(a__from(mark(z0))), mark(x1)), MARK(from(from(z0))))
   MARK(sel(from(sel(z0, z1)), x1)) -> c7(A__SEL(a__from(a__sel(mark(z0), mark(z1))), mark(x1)), MARK(from(sel(z0, z1))))
   MARK(sel(from(cons(z0, z1)), x1)) -> c7(A__SEL(a__from(cons(mark(z0), z1)), mark(x1)), MARK(from(cons(z0, z1))))
   MARK(sel(from(s(z0)), x1)) -> c7(A__SEL(a__from(s(mark(z0))), mark(x1)), MARK(from(s(z0))))
   MARK(sel(from(0), x1)) -> c7(A__SEL(a__from(0), mark(x1)), MARK(from(0)))
   MARK(sel(from(x0), x1)) -> c7(MARK(from(x0)))
   MARK(sel(from(x0), s(z0))) -> c7(MARK(from(x0)))
   MARK(sel(from(x0), 0)) -> c7(MARK(from(x0)))
   MARK(sel(sel(x0, from(z0)), x2)) -> c7(A__SEL(a__sel(mark(x0), a__from(mark(z0))), mark(x2)), MARK(sel(x0, from(z0))))
   MARK(sel(sel(x0, sel(z0, z1)), x2)) -> c7(A__SEL(a__sel(mark(x0), a__sel(mark(z0), mark(z1))), mark(x2)), MARK(sel(x0, sel(z0, z1))))
   MARK(sel(sel(x0, cons(z0, z1)), x2)) -> c7(A__SEL(a__sel(mark(x0), cons(mark(z0), z1)), mark(x2)), MARK(sel(x0, cons(z0, z1))))
   MARK(sel(sel(x0, s(z0)), x2)) -> c7(A__SEL(a__sel(mark(x0), s(mark(z0))), mark(x2)), MARK(sel(x0, s(z0))))
   MARK(sel(sel(x0, 0), x2)) -> c7(A__SEL(a__sel(mark(x0), 0), mark(x2)), MARK(sel(x0, 0)))
   MARK(sel(sel(from(z0), x1), x2)) -> c7(A__SEL(a__sel(a__from(mark(z0)), mark(x1)), mark(x2)), MARK(sel(from(z0), x1)))
   MARK(sel(sel(sel(z0, z1), x1), x2)) -> c7(A__SEL(a__sel(a__sel(mark(z0), mark(z1)), mark(x1)), mark(x2)), MARK(sel(sel(z0, z1), x1)))
   MARK(sel(sel(cons(z0, z1), x1), x2)) -> c7(A__SEL(a__sel(cons(mark(z0), z1), mark(x1)), mark(x2)), MARK(sel(cons(z0, z1), x1)))
   MARK(sel(sel(s(z0), x1), x2)) -> c7(A__SEL(a__sel(s(mark(z0)), mark(x1)), mark(x2)), MARK(sel(s(z0), x1)))
   MARK(sel(sel(0, x1), x2)) -> c7(A__SEL(a__sel(0, mark(x1)), mark(x2)), MARK(sel(0, x1)))
   MARK(sel(sel(x0, x1), s(z0))) -> c7(MARK(sel(x0, x1)))
   MARK(sel(sel(x0, x1), 0)) -> c7(MARK(sel(x0, x1)))
   MARK(sel(sel(x0, x1), x2)) -> c7(MARK(sel(x0, x1)))
   MARK(sel(s(from(z0)), x1)) -> c7(A__SEL(s(a__from(mark(z0))), mark(x1)), MARK(s(from(z0))))
   MARK(sel(s(sel(z0, z1)), x1)) -> c7(A__SEL(s(a__sel(mark(z0), mark(z1))), mark(x1)), MARK(s(sel(z0, z1))))
   MARK(sel(s(cons(z0, z1)), x1)) -> c7(A__SEL(s(cons(mark(z0), z1)), mark(x1)), MARK(s(cons(z0, z1))))
   MARK(sel(s(s(z0)), x1)) -> c7(A__SEL(s(s(mark(z0))), mark(x1)), MARK(s(s(z0))))
   MARK(sel(s(0), x1)) -> c7(A__SEL(s(0), mark(x1)), MARK(s(0)))
   MARK(sel(s(x0), x1)) -> c7(MARK(s(x0)))
   MARK(sel(s(x0), s(z0))) -> c7(MARK(s(x0)))
   MARK(sel(s(x0), 0)) -> c7(MARK(s(x0)))
   MARK(sel(x0, from(x1))) -> c8(A__SEL(mark(x0), cons(mark(mark(x1)), from(s(mark(x1))))), MARK(from(x1)))
   MARK(sel(x0, from(from(z0)))) -> c8(A__SEL(mark(x0), a__from(a__from(mark(z0)))), MARK(from(from(z0))))
   MARK(sel(x0, from(sel(z0, z1)))) -> c8(A__SEL(mark(x0), a__from(a__sel(mark(z0), mark(z1)))), MARK(from(sel(z0, z1))))
   MARK(sel(x0, from(cons(z0, z1)))) -> c8(A__SEL(mark(x0), a__from(cons(mark(z0), z1))), MARK(from(cons(z0, z1))))
   MARK(sel(x0, from(s(z0)))) -> c8(A__SEL(mark(x0), a__from(s(mark(z0)))), MARK(from(s(z0))))
   MARK(sel(x0, from(0))) -> c8(A__SEL(mark(x0), a__from(0)), MARK(from(0)))
   MARK(sel(from(z0), from(x1))) -> c8(A__SEL(a__from(mark(z0)), a__from(mark(x1))), MARK(from(x1)))
   MARK(sel(sel(z0, z1), from(x1))) -> c8(A__SEL(a__sel(mark(z0), mark(z1)), a__from(mark(x1))), MARK(from(x1)))
   MARK(sel(s(z0), from(x1))) -> c8(A__SEL(s(mark(z0)), a__from(mark(x1))), MARK(from(x1)))
   MARK(sel(0, from(x1))) -> c8(A__SEL(0, a__from(mark(x1))), MARK(from(x1)))
   MARK(sel(x0, from(x1))) -> c8(MARK(from(x1)))
   MARK(sel(cons(z0, z1), from(x1))) -> c8(MARK(from(x1)))
   MARK(sel(x0, sel(x1, from(z0)))) -> c8(A__SEL(mark(x0), a__sel(mark(x1), a__from(mark(z0)))), MARK(sel(x1, from(z0))))
   MARK(sel(x0, sel(x1, sel(z0, z1)))) -> c8(A__SEL(mark(x0), a__sel(mark(x1), a__sel(mark(z0), mark(z1)))), MARK(sel(x1, sel(z0, z1))))
   MARK(sel(x0, sel(x1, cons(z0, z1)))) -> c8(A__SEL(mark(x0), a__sel(mark(x1), cons(mark(z0), z1))), MARK(sel(x1, cons(z0, z1))))
   MARK(sel(x0, sel(x1, s(z0)))) -> c8(A__SEL(mark(x0), a__sel(mark(x1), s(mark(z0)))), MARK(sel(x1, s(z0))))
   MARK(sel(x0, sel(x1, 0))) -> c8(A__SEL(mark(x0), a__sel(mark(x1), 0)), MARK(sel(x1, 0)))
   MARK(sel(x0, sel(from(z0), x2))) -> c8(A__SEL(mark(x0), a__sel(a__from(mark(z0)), mark(x2))), MARK(sel(from(z0), x2)))
   MARK(sel(x0, sel(sel(z0, z1), x2))) -> c8(A__SEL(mark(x0), a__sel(a__sel(mark(z0), mark(z1)), mark(x2))), MARK(sel(sel(z0, z1), x2)))
   MARK(sel(x0, sel(cons(z0, z1), x2))) -> c8(A__SEL(mark(x0), a__sel(cons(mark(z0), z1), mark(x2))), MARK(sel(cons(z0, z1), x2)))
   MARK(sel(x0, sel(s(z0), x2))) -> c8(A__SEL(mark(x0), a__sel(s(mark(z0)), mark(x2))), MARK(sel(s(z0), x2)))
   MARK(sel(x0, sel(0, x2))) -> c8(A__SEL(mark(x0), a__sel(0, mark(x2))), MARK(sel(0, x2)))
   MARK(sel(from(z0), sel(x1, x2))) -> c8(A__SEL(a__from(mark(z0)), a__sel(mark(x1), mark(x2))), MARK(sel(x1, x2)))
   MARK(sel(sel(z0, z1), sel(x1, x2))) -> c8(A__SEL(a__sel(mark(z0), mark(z1)), a__sel(mark(x1), mark(x2))), MARK(sel(x1, x2)))
   MARK(sel(s(z0), sel(x1, x2))) -> c8(A__SEL(s(mark(z0)), a__sel(mark(x1), mark(x2))), MARK(sel(x1, x2)))
   MARK(sel(0, sel(x1, x2))) -> c8(A__SEL(0, a__sel(mark(x1), mark(x2))), MARK(sel(x1, x2)))
   MARK(sel(x0, sel(x1, x2))) -> c8(MARK(sel(x1, x2)))
   MARK(sel(cons(z0, z1), sel(x1, x2))) -> c8(MARK(sel(x1, x2)))
   MARK(sel(x0, cons(from(z0), x2))) -> c8(A__SEL(mark(x0), cons(a__from(mark(z0)), x2)), MARK(cons(from(z0), x2)))
   MARK(sel(x0, cons(sel(z0, z1), x2))) -> c8(A__SEL(mark(x0), cons(a__sel(mark(z0), mark(z1)), x2)), MARK(cons(sel(z0, z1), x2)))
   MARK(sel(x0, cons(cons(z0, z1), x2))) -> c8(A__SEL(mark(x0), cons(cons(mark(z0), z1), x2)), MARK(cons(cons(z0, z1), x2)))
   MARK(sel(x0, cons(s(z0), x2))) -> c8(A__SEL(mark(x0), cons(s(mark(z0)), x2)), MARK(cons(s(z0), x2)))
   MARK(sel(x0, cons(0, x2))) -> c8(A__SEL(mark(x0), cons(0, x2)), MARK(cons(0, x2)))
   MARK(sel(from(z0), cons(x1, x2))) -> c8(A__SEL(a__from(mark(z0)), cons(mark(x1), x2)), MARK(cons(x1, x2)))
   MARK(sel(sel(z0, z1), cons(x1, x2))) -> c8(A__SEL(a__sel(mark(z0), mark(z1)), cons(mark(x1), x2)), MARK(cons(x1, x2)))
   MARK(sel(s(z0), cons(x1, x2))) -> c8(A__SEL(s(mark(z0)), cons(mark(x1), x2)), MARK(cons(x1, x2)))
   MARK(sel(0, cons(x1, x2))) -> c8(A__SEL(0, cons(mark(x1), x2)), MARK(cons(x1, x2)))
   MARK(sel(x0, cons(x1, x2))) -> c8(MARK(cons(x1, x2)))
   MARK(sel(cons(z0, z1), cons(x1, x2))) -> c8(MARK(cons(x1, x2)))
   MARK(sel(from(from(z0)), x1)) -> c8(A__SEL(a__from(a__from(mark(z0))), mark(x1)), MARK(x1))
   MARK(sel(from(sel(z0, z1)), x1)) -> c8(A__SEL(a__from(a__sel(mark(z0), mark(z1))), mark(x1)), MARK(x1))
   MARK(sel(from(cons(z0, z1)), x1)) -> c8(A__SEL(a__from(cons(mark(z0), z1)), mark(x1)), MARK(x1))
   MARK(sel(from(s(z0)), x1)) -> c8(A__SEL(a__from(s(mark(z0))), mark(x1)), MARK(x1))
   MARK(sel(from(0), x1)) -> c8(A__SEL(a__from(0), mark(x1)), MARK(x1))
   MARK(sel(from(x0), s(z0))) -> c8(MARK(s(z0)))
   MARK(sel(from(x0), x1)) -> c8(MARK(x1))
   MARK(sel(sel(x0, from(z0)), x2)) -> c8(A__SEL(a__sel(mark(x0), a__from(mark(z0))), mark(x2)), MARK(x2))
   MARK(sel(sel(x0, sel(z0, z1)), x2)) -> c8(A__SEL(a__sel(mark(x0), a__sel(mark(z0), mark(z1))), mark(x2)), MARK(x2))
   MARK(sel(sel(x0, cons(z0, z1)), x2)) -> c8(A__SEL(a__sel(mark(x0), cons(mark(z0), z1)), mark(x2)), MARK(x2))
   MARK(sel(sel(x0, s(z0)), x2)) -> c8(A__SEL(a__sel(mark(x0), s(mark(z0))), mark(x2)), MARK(x2))
   MARK(sel(sel(x0, 0), x2)) -> c8(A__SEL(a__sel(mark(x0), 0), mark(x2)), MARK(x2))
   MARK(sel(sel(from(z0), x1), x2)) -> c8(A__SEL(a__sel(a__from(mark(z0)), mark(x1)), mark(x2)), MARK(x2))
   MARK(sel(sel(sel(z0, z1), x1), x2)) -> c8(A__SEL(a__sel(a__sel(mark(z0), mark(z1)), mark(x1)), mark(x2)), MARK(x2))
   MARK(sel(sel(cons(z0, z1), x1), x2)) -> c8(A__SEL(a__sel(cons(mark(z0), z1), mark(x1)), mark(x2)), MARK(x2))
   MARK(sel(sel(s(z0), x1), x2)) -> c8(A__SEL(a__sel(s(mark(z0)), mark(x1)), mark(x2)), MARK(x2))
   MARK(sel(sel(0, x1), x2)) -> c8(A__SEL(a__sel(0, mark(x1)), mark(x2)), MARK(x2))
   MARK(sel(sel(x0, x1), s(z0))) -> c8(MARK(s(z0)))
   MARK(sel(sel(x0, x1), x2)) -> c8(MARK(x2))
   MARK(sel(s(from(z0)), x1)) -> c8(A__SEL(s(a__from(mark(z0))), mark(x1)), MARK(x1))
   MARK(sel(s(sel(z0, z1)), x1)) -> c8(A__SEL(s(a__sel(mark(z0), mark(z1))), mark(x1)), MARK(x1))
   MARK(sel(s(cons(z0, z1)), x1)) -> c8(A__SEL(s(cons(mark(z0), z1)), mark(x1)), MARK(x1))
   MARK(sel(s(s(z0)), x1)) -> c8(A__SEL(s(s(mark(z0))), mark(x1)), MARK(x1))
   MARK(sel(s(0), x1)) -> c8(A__SEL(s(0), mark(x1)), MARK(x1))
   MARK(sel(s(x0), s(z0))) -> c8(MARK(s(z0)))
   MARK(sel(0, s(z0))) -> c8(MARK(s(z0)))
   A__FROM(from(y0)) -> c(MARK(from(y0)))
   A__FROM(cons(y0, y1)) -> c(MARK(cons(y0, y1)))
   A__FROM(s(y0)) -> c(MARK(s(y0)))
   A__FROM(sel(y0, s(y1))) -> c(MARK(sel(y0, s(y1))))
   A__FROM(sel(y0, 0)) -> c(MARK(sel(y0, 0)))
   A__FROM(sel(cons(y0, y1), y2)) -> c(MARK(sel(cons(y0, y1), y2)))
   A__FROM(sel(y0, from(y1))) -> c(MARK(sel(y0, from(y1))))
   A__FROM(sel(y0, from(from(y1)))) -> c(MARK(sel(y0, from(from(y1)))))
   A__FROM(sel(y0, from(sel(y1, y2)))) -> c(MARK(sel(y0, from(sel(y1, y2)))))
   A__FROM(sel(y0, from(cons(y1, y2)))) -> c(MARK(sel(y0, from(cons(y1, y2)))))
   A__FROM(sel(y0, from(s(y1)))) -> c(MARK(sel(y0, from(s(y1)))))
   A__FROM(sel(y0, from(0))) -> c(MARK(sel(y0, from(0))))
   A__FROM(sel(from(y0), from(y1))) -> c(MARK(sel(from(y0), from(y1))))
   A__FROM(sel(sel(y0, y1), from(y2))) -> c(MARK(sel(sel(y0, y1), from(y2))))
   A__FROM(sel(s(y0), from(y1))) -> c(MARK(sel(s(y0), from(y1))))
   A__FROM(sel(cons(y0, y1), from(y2))) -> c(MARK(sel(cons(y0, y1), from(y2))))
   A__FROM(sel(0, from(y0))) -> c(MARK(sel(0, from(y0))))
   A__FROM(sel(y0, sel(y1, from(y2)))) -> c(MARK(sel(y0, sel(y1, from(y2)))))
   A__FROM(sel(y0, sel(y1, sel(y2, y3)))) -> c(MARK(sel(y0, sel(y1, sel(y2, y3)))))
   A__FROM(sel(y0, sel(y1, cons(y2, y3)))) -> c(MARK(sel(y0, sel(y1, cons(y2, y3)))))
   A__FROM(sel(y0, sel(y1, s(y2)))) -> c(MARK(sel(y0, sel(y1, s(y2)))))
   A__FROM(sel(y0, sel(y1, 0))) -> c(MARK(sel(y0, sel(y1, 0))))
   A__FROM(sel(y0, sel(from(y1), y2))) -> c(MARK(sel(y0, sel(from(y1), y2))))
   A__FROM(sel(y0, sel(sel(y1, y2), y3))) -> c(MARK(sel(y0, sel(sel(y1, y2), y3))))
   A__FROM(sel(y0, sel(cons(y1, y2), y3))) -> c(MARK(sel(y0, sel(cons(y1, y2), y3))))
   A__FROM(sel(y0, sel(s(y1), y2))) -> c(MARK(sel(y0, sel(s(y1), y2))))
   A__FROM(sel(y0, sel(0, y1))) -> c(MARK(sel(y0, sel(0, y1))))
   A__FROM(sel(from(y0), sel(y1, y2))) -> c(MARK(sel(from(y0), sel(y1, y2))))
   A__FROM(sel(sel(y0, y1), sel(y2, y3))) -> c(MARK(sel(sel(y0, y1), sel(y2, y3))))
   A__FROM(sel(s(y0), sel(y1, y2))) -> c(MARK(sel(s(y0), sel(y1, y2))))
   A__FROM(sel(y0, sel(y1, y2))) -> c(MARK(sel(y0, sel(y1, y2))))
   A__FROM(sel(cons(y0, y1), sel(y2, y3))) -> c(MARK(sel(cons(y0, y1), sel(y2, y3))))
   A__FROM(sel(0, sel(y0, y1))) -> c(MARK(sel(0, sel(y0, y1))))
   A__FROM(sel(y0, cons(from(y1), y2))) -> c(MARK(sel(y0, cons(from(y1), y2))))
   A__FROM(sel(y0, cons(sel(y1, y2), y3))) -> c(MARK(sel(y0, cons(sel(y1, y2), y3))))
   A__FROM(sel(y0, cons(cons(y1, y2), y3))) -> c(MARK(sel(y0, cons(cons(y1, y2), y3))))
   A__FROM(sel(y0, cons(s(y1), y2))) -> c(MARK(sel(y0, cons(s(y1), y2))))
   A__FROM(sel(y0, cons(0, y1))) -> c(MARK(sel(y0, cons(0, y1))))
   A__FROM(sel(from(y0), cons(y1, y2))) -> c(MARK(sel(from(y0), cons(y1, y2))))
   A__FROM(sel(sel(y0, y1), cons(y2, y3))) -> c(MARK(sel(sel(y0, y1), cons(y2, y3))))
   A__FROM(sel(s(y0), cons(y1, y2))) -> c(MARK(sel(s(y0), cons(y1, y2))))
   A__FROM(sel(cons(y0, y1), cons(y2, y3))) -> c(MARK(sel(cons(y0, y1), cons(y2, y3))))
   A__FROM(sel(0, cons(y0, y1))) -> c(MARK(sel(0, cons(y0, y1))))
   A__FROM(sel(from(from(y0)), y1)) -> c(MARK(sel(from(from(y0)), y1)))
   A__FROM(sel(from(sel(y0, y1)), y2)) -> c(MARK(sel(from(sel(y0, y1)), y2)))
   A__FROM(sel(from(cons(y0, y1)), y2)) -> c(MARK(sel(from(cons(y0, y1)), y2)))
   A__FROM(sel(from(s(y0)), y1)) -> c(MARK(sel(from(s(y0)), y1)))
   A__FROM(sel(from(0), y0)) -> c(MARK(sel(from(0), y0)))
   A__FROM(sel(from(y0), y1)) -> c(MARK(sel(from(y0), y1)))
   A__FROM(sel(from(y0), s(y1))) -> c(MARK(sel(from(y0), s(y1))))
   A__FROM(sel(from(y0), 0)) -> c(MARK(sel(from(y0), 0)))
   A__FROM(sel(sel(y0, from(y1)), y2)) -> c(MARK(sel(sel(y0, from(y1)), y2)))
   A__FROM(sel(sel(y0, sel(y1, y2)), y3)) -> c(MARK(sel(sel(y0, sel(y1, y2)), y3)))
   A__FROM(sel(sel(y0, cons(y1, y2)), y3)) -> c(MARK(sel(sel(y0, cons(y1, y2)), y3)))
   A__FROM(sel(sel(y0, s(y1)), y2)) -> c(MARK(sel(sel(y0, s(y1)), y2)))
   A__FROM(sel(sel(y0, 0), y1)) -> c(MARK(sel(sel(y0, 0), y1)))
   A__FROM(sel(sel(from(y0), y1), y2)) -> c(MARK(sel(sel(from(y0), y1), y2)))
   A__FROM(sel(sel(sel(y0, y1), y2), y3)) -> c(MARK(sel(sel(sel(y0, y1), y2), y3)))
   A__FROM(sel(sel(cons(y0, y1), y2), y3)) -> c(MARK(sel(sel(cons(y0, y1), y2), y3)))
   A__FROM(sel(sel(s(y0), y1), y2)) -> c(MARK(sel(sel(s(y0), y1), y2)))
   A__FROM(sel(sel(0, y0), y1)) -> c(MARK(sel(sel(0, y0), y1)))
   A__FROM(sel(sel(y0, y1), s(y2))) -> c(MARK(sel(sel(y0, y1), s(y2))))
   A__FROM(sel(sel(y0, y1), 0)) -> c(MARK(sel(sel(y0, y1), 0)))
   A__FROM(sel(sel(y0, y1), y2)) -> c(MARK(sel(sel(y0, y1), y2)))
   A__FROM(sel(s(from(y0)), y1)) -> c(MARK(sel(s(from(y0)), y1)))
   A__FROM(sel(s(sel(y0, y1)), y2)) -> c(MARK(sel(s(sel(y0, y1)), y2)))
   A__FROM(sel(s(cons(y0, y1)), y2)) -> c(MARK(sel(s(cons(y0, y1)), y2)))
   A__FROM(sel(s(s(y0)), y1)) -> c(MARK(sel(s(s(y0)), y1)))
   A__FROM(sel(s(0), y0)) -> c(MARK(sel(s(0), y0)))
   A__FROM(sel(s(y0), y1)) -> c(MARK(sel(s(y0), y1)))
   A__FROM(sel(s(y0), s(y1))) -> c(MARK(sel(s(y0), s(y1))))
   A__FROM(sel(s(y0), 0)) -> c(MARK(sel(s(y0), 0)))
   A__FROM(sel(y0, cons(y1, y2))) -> c(MARK(sel(y0, cons(y1, y2))))
   A__FROM(sel(0, s(y0))) -> c(MARK(sel(0, s(y0))))
   MARK(from(from(z0))) -> c6(A__FROM(a__from(mark(z0))), MARK(from(z0)))
   MARK(from(sel(z0, z1))) -> c6(A__FROM(a__sel(mark(z0), mark(z1))), MARK(sel(z0, z1)))
   MARK(from(cons(z0, z1))) -> c6(A__FROM(cons(mark(z0), z1)), MARK(cons(z0, z1)))
   MARK(from(s(z0))) -> c6(A__FROM(s(mark(z0))), MARK(s(z0)))
   MARK(from(0)) -> c6(A__FROM(0), MARK(0))
K tuples:none
Defined Rule Symbols:   a__from_1, a__sel_2, mark_1

Defined Pair Symbols:   A__SEL_2, MARK_1, A__FROM_1

Compound Symbols:   c2_1, c9_1, c10_1, c3_1, c4_1, c7_1, c8_1, c3_2, c4_2, c7_2, c8_2, c_1, c6_2


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

(209) CdtLeafRemovalProof (BOTH BOUNDS(ID, ID))
Removed 1 trailing nodes:
   MARK(from(0)) -> c6(A__FROM(0), MARK(0))

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

(210)
Obligation:
Complexity Dependency Tuples Problem

Rules:
   a__from(z0) -> cons(mark(z0), from(s(z0)))
   a__from(z0) -> from(z0)
   a__sel(0, cons(z0, z1)) -> mark(z0)
   a__sel(s(z0), cons(z1, z2)) -> a__sel(mark(z0), mark(z2))
   a__sel(z0, z1) -> sel(z0, z1)
   mark(from(z0)) -> a__from(mark(z0))
   mark(sel(z0, z1)) -> a__sel(mark(z0), mark(z1))
   mark(cons(z0, z1)) -> cons(mark(z0), z1)
   mark(s(z0)) -> s(mark(z0))
   mark(0) -> 0
Tuples:
   A__SEL(0, cons(z0, z1)) -> c2(MARK(z0))
   MARK(cons(z0, z1)) -> c9(MARK(z0))
   MARK(s(z0)) -> c10(MARK(z0))
   A__SEL(s(x0), cons(x1, s(z0))) -> c3(MARK(x0))
   A__SEL(s(x0), cons(x1, 0)) -> c3(MARK(x0))
   A__SEL(s(cons(z0, z1)), cons(x1, x2)) -> c3(MARK(cons(z0, z1)))
   A__SEL(s(x0), cons(x1, s(z0))) -> c4(MARK(s(z0)))
   A__SEL(s(cons(z0, z1)), cons(x1, x2)) -> c4(MARK(x2))
   MARK(sel(x0, s(z0))) -> c7(MARK(x0))
   MARK(sel(x0, 0)) -> c7(MARK(x0))
   MARK(sel(cons(z0, z1), x1)) -> c7(MARK(cons(z0, z1)))
   MARK(sel(x0, s(z0))) -> c8(MARK(s(z0)))
   MARK(sel(cons(z0, z1), x1)) -> c8(MARK(x1))
   A__SEL(s(x0), cons(x1, from(x2))) -> c3(A__SEL(mark(x0), cons(mark(mark(x2)), from(s(mark(x2))))), MARK(x0))
   A__SEL(s(x0), cons(x1, from(from(z0)))) -> c3(A__SEL(mark(x0), a__from(a__from(mark(z0)))), MARK(x0))
   A__SEL(s(x0), cons(x1, from(sel(z0, z1)))) -> c3(A__SEL(mark(x0), a__from(a__sel(mark(z0), mark(z1)))), MARK(x0))
   A__SEL(s(x0), cons(x1, from(cons(z0, z1)))) -> c3(A__SEL(mark(x0), a__from(cons(mark(z0), z1))), MARK(x0))
   A__SEL(s(x0), cons(x1, from(s(z0)))) -> c3(A__SEL(mark(x0), a__from(s(mark(z0)))), MARK(x0))
   A__SEL(s(x0), cons(x1, from(0))) -> c3(A__SEL(mark(x0), a__from(0)), MARK(x0))
   A__SEL(s(from(z0)), cons(x1, from(x2))) -> c3(A__SEL(a__from(mark(z0)), a__from(mark(x2))), MARK(from(z0)))
   A__SEL(s(sel(z0, z1)), cons(x1, from(x2))) -> c3(A__SEL(a__sel(mark(z0), mark(z1)), a__from(mark(x2))), MARK(sel(z0, z1)))
   A__SEL(s(s(z0)), cons(x1, from(x2))) -> c3(A__SEL(s(mark(z0)), a__from(mark(x2))), MARK(s(z0)))
   A__SEL(s(x0), cons(x1, from(x2))) -> c3(MARK(x0))
   A__SEL(s(cons(z0, z1)), cons(x1, from(x2))) -> c3(MARK(cons(z0, z1)))
   A__SEL(s(0), cons(x1, from(x2))) -> c3(A__SEL(0, a__from(mark(x2))))
   A__SEL(s(x0), cons(x1, sel(x2, from(z0)))) -> c3(A__SEL(mark(x0), a__sel(mark(x2), a__from(mark(z0)))), MARK(x0))
   A__SEL(s(x0), cons(x1, sel(x2, sel(z0, z1)))) -> c3(A__SEL(mark(x0), a__sel(mark(x2), a__sel(mark(z0), mark(z1)))), MARK(x0))
   A__SEL(s(x0), cons(x1, sel(x2, cons(z0, z1)))) -> c3(A__SEL(mark(x0), a__sel(mark(x2), cons(mark(z0), z1))), MARK(x0))
   A__SEL(s(x0), cons(x1, sel(x2, s(z0)))) -> c3(A__SEL(mark(x0), a__sel(mark(x2), s(mark(z0)))), MARK(x0))
   A__SEL(s(x0), cons(x1, sel(x2, 0))) -> c3(A__SEL(mark(x0), a__sel(mark(x2), 0)), MARK(x0))
   A__SEL(s(x0), cons(x1, sel(from(z0), x3))) -> c3(A__SEL(mark(x0), a__sel(a__from(mark(z0)), mark(x3))), MARK(x0))
   A__SEL(s(x0), cons(x1, sel(sel(z0, z1), x3))) -> c3(A__SEL(mark(x0), a__sel(a__sel(mark(z0), mark(z1)), mark(x3))), MARK(x0))
   A__SEL(s(x0), cons(x1, sel(cons(z0, z1), x3))) -> c3(A__SEL(mark(x0), a__sel(cons(mark(z0), z1), mark(x3))), MARK(x0))
   A__SEL(s(x0), cons(x1, sel(s(z0), x3))) -> c3(A__SEL(mark(x0), a__sel(s(mark(z0)), mark(x3))), MARK(x0))
   A__SEL(s(x0), cons(x1, sel(0, x3))) -> c3(A__SEL(mark(x0), a__sel(0, mark(x3))), MARK(x0))
   A__SEL(s(from(z0)), cons(x1, sel(x2, x3))) -> c3(A__SEL(a__from(mark(z0)), a__sel(mark(x2), mark(x3))), MARK(from(z0)))
   A__SEL(s(sel(z0, z1)), cons(x1, sel(x2, x3))) -> c3(A__SEL(a__sel(mark(z0), mark(z1)), a__sel(mark(x2), mark(x3))), MARK(sel(z0, z1)))
   A__SEL(s(s(z0)), cons(x1, sel(x2, x3))) -> c3(A__SEL(s(mark(z0)), a__sel(mark(x2), mark(x3))), MARK(s(z0)))
   A__SEL(s(x0), cons(x1, sel(x2, x3))) -> c3(MARK(x0))
   A__SEL(s(cons(z0, z1)), cons(x1, sel(x2, x3))) -> c3(MARK(cons(z0, z1)))
   A__SEL(s(0), cons(x1, sel(x2, x3))) -> c3(A__SEL(0, a__sel(mark(x2), mark(x3))))
   A__SEL(s(x0), cons(x1, cons(from(z0), x3))) -> c3(A__SEL(mark(x0), cons(a__from(mark(z0)), x3)), MARK(x0))
   A__SEL(s(x0), cons(x1, cons(sel(z0, z1), x3))) -> c3(A__SEL(mark(x0), cons(a__sel(mark(z0), mark(z1)), x3)), MARK(x0))
   A__SEL(s(x0), cons(x1, cons(cons(z0, z1), x3))) -> c3(A__SEL(mark(x0), cons(cons(mark(z0), z1), x3)), MARK(x0))
   A__SEL(s(x0), cons(x1, cons(s(z0), x3))) -> c3(A__SEL(mark(x0), cons(s(mark(z0)), x3)), MARK(x0))
   A__SEL(s(x0), cons(x1, cons(0, x3))) -> c3(A__SEL(mark(x0), cons(0, x3)), MARK(x0))
   A__SEL(s(from(z0)), cons(x1, cons(x2, x3))) -> c3(A__SEL(a__from(mark(z0)), cons(mark(x2), x3)), MARK(from(z0)))
   A__SEL(s(sel(z0, z1)), cons(x1, cons(x2, x3))) -> c3(A__SEL(a__sel(mark(z0), mark(z1)), cons(mark(x2), x3)), MARK(sel(z0, z1)))
   A__SEL(s(s(z0)), cons(x1, cons(x2, x3))) -> c3(A__SEL(s(mark(z0)), cons(mark(x2), x3)), MARK(s(z0)))
   A__SEL(s(cons(z0, z1)), cons(x1, cons(x2, x3))) -> c3(MARK(cons(z0, z1)))
   A__SEL(s(0), cons(x1, cons(x2, x3))) -> c3(A__SEL(0, cons(mark(x2), x3)))
   A__SEL(s(from(from(z0))), cons(x1, x2)) -> c3(A__SEL(a__from(a__from(mark(z0))), mark(x2)), MARK(from(from(z0))))
   A__SEL(s(from(sel(z0, z1))), cons(x1, x2)) -> c3(A__SEL(a__from(a__sel(mark(z0), mark(z1))), mark(x2)), MARK(from(sel(z0, z1))))
   A__SEL(s(from(cons(z0, z1))), cons(x1, x2)) -> c3(A__SEL(a__from(cons(mark(z0), z1)), mark(x2)), MARK(from(cons(z0, z1))))
   A__SEL(s(from(s(z0))), cons(x1, x2)) -> c3(A__SEL(a__from(s(mark(z0))), mark(x2)), MARK(from(s(z0))))
   A__SEL(s(from(0)), cons(x1, x2)) -> c3(A__SEL(a__from(0), mark(x2)), MARK(from(0)))
   A__SEL(s(from(x0)), cons(x1, x2)) -> c3(MARK(from(x0)))
   A__SEL(s(from(x0)), cons(x1, s(z0))) -> c3(MARK(from(x0)))
   A__SEL(s(from(x0)), cons(x1, 0)) -> c3(MARK(from(x0)))
   A__SEL(s(sel(x0, from(z0))), cons(x2, x3)) -> c3(A__SEL(a__sel(mark(x0), a__from(mark(z0))), mark(x3)), MARK(sel(x0, from(z0))))
   A__SEL(s(sel(x0, sel(z0, z1))), cons(x2, x3)) -> c3(A__SEL(a__sel(mark(x0), a__sel(mark(z0), mark(z1))), mark(x3)), MARK(sel(x0, sel(z0, z1))))
   A__SEL(s(sel(x0, cons(z0, z1))), cons(x2, x3)) -> c3(A__SEL(a__sel(mark(x0), cons(mark(z0), z1)), mark(x3)), MARK(sel(x0, cons(z0, z1))))
   A__SEL(s(sel(x0, s(z0))), cons(x2, x3)) -> c3(A__SEL(a__sel(mark(x0), s(mark(z0))), mark(x3)), MARK(sel(x0, s(z0))))
   A__SEL(s(sel(x0, 0)), cons(x2, x3)) -> c3(A__SEL(a__sel(mark(x0), 0), mark(x3)), MARK(sel(x0, 0)))
   A__SEL(s(sel(from(z0), x1)), cons(x2, x3)) -> c3(A__SEL(a__sel(a__from(mark(z0)), mark(x1)), mark(x3)), MARK(sel(from(z0), x1)))
   A__SEL(s(sel(sel(z0, z1), x1)), cons(x2, x3)) -> c3(A__SEL(a__sel(a__sel(mark(z0), mark(z1)), mark(x1)), mark(x3)), MARK(sel(sel(z0, z1), x1)))
   A__SEL(s(sel(cons(z0, z1), x1)), cons(x2, x3)) -> c3(A__SEL(a__sel(cons(mark(z0), z1), mark(x1)), mark(x3)), MARK(sel(cons(z0, z1), x1)))
   A__SEL(s(sel(s(z0), x1)), cons(x2, x3)) -> c3(A__SEL(a__sel(s(mark(z0)), mark(x1)), mark(x3)), MARK(sel(s(z0), x1)))
   A__SEL(s(sel(0, x1)), cons(x2, x3)) -> c3(A__SEL(a__sel(0, mark(x1)), mark(x3)), MARK(sel(0, x1)))
   A__SEL(s(sel(x0, x1)), cons(x2, s(z0))) -> c3(MARK(sel(x0, x1)))
   A__SEL(s(sel(x0, x1)), cons(x2, 0)) -> c3(MARK(sel(x0, x1)))
   A__SEL(s(sel(x0, x1)), cons(x2, x3)) -> c3(MARK(sel(x0, x1)))
   A__SEL(s(s(from(z0))), cons(x1, x2)) -> c3(A__SEL(s(a__from(mark(z0))), mark(x2)), MARK(s(from(z0))))
   A__SEL(s(s(sel(z0, z1))), cons(x1, x2)) -> c3(A__SEL(s(a__sel(mark(z0), mark(z1))), mark(x2)), MARK(s(sel(z0, z1))))
   A__SEL(s(s(cons(z0, z1))), cons(x1, x2)) -> c3(A__SEL(s(cons(mark(z0), z1)), mark(x2)), MARK(s(cons(z0, z1))))
   A__SEL(s(s(s(z0))), cons(x1, x2)) -> c3(A__SEL(s(s(mark(z0))), mark(x2)), MARK(s(s(z0))))
   A__SEL(s(s(0)), cons(x1, x2)) -> c3(A__SEL(s(0), mark(x2)), MARK(s(0)))
   A__SEL(s(s(x0)), cons(x1, x2)) -> c3(MARK(s(x0)))
   A__SEL(s(s(x0)), cons(x1, s(z0))) -> c3(MARK(s(x0)))
   A__SEL(s(s(x0)), cons(x1, 0)) -> c3(MARK(s(x0)))
   A__SEL(s(x0), cons(x1, from(x2))) -> c4(A__SEL(mark(x0), cons(mark(mark(x2)), from(s(mark(x2))))), MARK(from(x2)))
   A__SEL(s(x0), cons(x1, from(from(z0)))) -> c4(A__SEL(mark(x0), a__from(a__from(mark(z0)))), MARK(from(from(z0))))
   A__SEL(s(x0), cons(x1, from(sel(z0, z1)))) -> c4(A__SEL(mark(x0), a__from(a__sel(mark(z0), mark(z1)))), MARK(from(sel(z0, z1))))
   A__SEL(s(x0), cons(x1, from(cons(z0, z1)))) -> c4(A__SEL(mark(x0), a__from(cons(mark(z0), z1))), MARK(from(cons(z0, z1))))
   A__SEL(s(x0), cons(x1, from(s(z0)))) -> c4(A__SEL(mark(x0), a__from(s(mark(z0)))), MARK(from(s(z0))))
   A__SEL(s(x0), cons(x1, from(0))) -> c4(A__SEL(mark(x0), a__from(0)), MARK(from(0)))
   A__SEL(s(from(z0)), cons(x1, from(x2))) -> c4(A__SEL(a__from(mark(z0)), a__from(mark(x2))), MARK(from(x2)))
   A__SEL(s(sel(z0, z1)), cons(x1, from(x2))) -> c4(A__SEL(a__sel(mark(z0), mark(z1)), a__from(mark(x2))), MARK(from(x2)))
   A__SEL(s(s(z0)), cons(x1, from(x2))) -> c4(A__SEL(s(mark(z0)), a__from(mark(x2))), MARK(from(x2)))
   A__SEL(s(0), cons(x1, from(x2))) -> c4(A__SEL(0, a__from(mark(x2))), MARK(from(x2)))
   A__SEL(s(x0), cons(x1, from(x2))) -> c4(MARK(from(x2)))
   A__SEL(s(cons(z0, z1)), cons(x1, from(x2))) -> c4(MARK(from(x2)))
   A__SEL(s(x0), cons(x1, sel(x2, from(z0)))) -> c4(A__SEL(mark(x0), a__sel(mark(x2), a__from(mark(z0)))), MARK(sel(x2, from(z0))))
   A__SEL(s(x0), cons(x1, sel(x2, sel(z0, z1)))) -> c4(A__SEL(mark(x0), a__sel(mark(x2), a__sel(mark(z0), mark(z1)))), MARK(sel(x2, sel(z0, z1))))
   A__SEL(s(x0), cons(x1, sel(x2, cons(z0, z1)))) -> c4(A__SEL(mark(x0), a__sel(mark(x2), cons(mark(z0), z1))), MARK(sel(x2, cons(z0, z1))))
   A__SEL(s(x0), cons(x1, sel(x2, s(z0)))) -> c4(A__SEL(mark(x0), a__sel(mark(x2), s(mark(z0)))), MARK(sel(x2, s(z0))))
   A__SEL(s(x0), cons(x1, sel(x2, 0))) -> c4(A__SEL(mark(x0), a__sel(mark(x2), 0)), MARK(sel(x2, 0)))
   A__SEL(s(x0), cons(x1, sel(from(z0), x3))) -> c4(A__SEL(mark(x0), a__sel(a__from(mark(z0)), mark(x3))), MARK(sel(from(z0), x3)))
   A__SEL(s(x0), cons(x1, sel(sel(z0, z1), x3))) -> c4(A__SEL(mark(x0), a__sel(a__sel(mark(z0), mark(z1)), mark(x3))), MARK(sel(sel(z0, z1), x3)))
   A__SEL(s(x0), cons(x1, sel(cons(z0, z1), x3))) -> c4(A__SEL(mark(x0), a__sel(cons(mark(z0), z1), mark(x3))), MARK(sel(cons(z0, z1), x3)))
   A__SEL(s(x0), cons(x1, sel(s(z0), x3))) -> c4(A__SEL(mark(x0), a__sel(s(mark(z0)), mark(x3))), MARK(sel(s(z0), x3)))
   A__SEL(s(x0), cons(x1, sel(0, x3))) -> c4(A__SEL(mark(x0), a__sel(0, mark(x3))), MARK(sel(0, x3)))
   A__SEL(s(from(z0)), cons(x1, sel(x2, x3))) -> c4(A__SEL(a__from(mark(z0)), a__sel(mark(x2), mark(x3))), MARK(sel(x2, x3)))
   A__SEL(s(sel(z0, z1)), cons(x1, sel(x2, x3))) -> c4(A__SEL(a__sel(mark(z0), mark(z1)), a__sel(mark(x2), mark(x3))), MARK(sel(x2, x3)))
   A__SEL(s(s(z0)), cons(x1, sel(x2, x3))) -> c4(A__SEL(s(mark(z0)), a__sel(mark(x2), mark(x3))), MARK(sel(x2, x3)))
   A__SEL(s(0), cons(x1, sel(x2, x3))) -> c4(A__SEL(0, a__sel(mark(x2), mark(x3))), MARK(sel(x2, x3)))
   A__SEL(s(x0), cons(x1, sel(x2, x3))) -> c4(MARK(sel(x2, x3)))
   A__SEL(s(cons(z0, z1)), cons(x1, sel(x2, x3))) -> c4(MARK(sel(x2, x3)))
   A__SEL(s(x0), cons(x1, cons(from(z0), x3))) -> c4(A__SEL(mark(x0), cons(a__from(mark(z0)), x3)), MARK(cons(from(z0), x3)))
   A__SEL(s(x0), cons(x1, cons(sel(z0, z1), x3))) -> c4(A__SEL(mark(x0), cons(a__sel(mark(z0), mark(z1)), x3)), MARK(cons(sel(z0, z1), x3)))
   A__SEL(s(x0), cons(x1, cons(cons(z0, z1), x3))) -> c4(A__SEL(mark(x0), cons(cons(mark(z0), z1), x3)), MARK(cons(cons(z0, z1), x3)))
   A__SEL(s(x0), cons(x1, cons(s(z0), x3))) -> c4(A__SEL(mark(x0), cons(s(mark(z0)), x3)), MARK(cons(s(z0), x3)))
   A__SEL(s(x0), cons(x1, cons(0, x3))) -> c4(A__SEL(mark(x0), cons(0, x3)), MARK(cons(0, x3)))
   A__SEL(s(from(z0)), cons(x1, cons(x2, x3))) -> c4(A__SEL(a__from(mark(z0)), cons(mark(x2), x3)), MARK(cons(x2, x3)))
   A__SEL(s(sel(z0, z1)), cons(x1, cons(x2, x3))) -> c4(A__SEL(a__sel(mark(z0), mark(z1)), cons(mark(x2), x3)), MARK(cons(x2, x3)))
   A__SEL(s(s(z0)), cons(x1, cons(x2, x3))) -> c4(A__SEL(s(mark(z0)), cons(mark(x2), x3)), MARK(cons(x2, x3)))
   A__SEL(s(0), cons(x1, cons(x2, x3))) -> c4(A__SEL(0, cons(mark(x2), x3)), MARK(cons(x2, x3)))
   A__SEL(s(x0), cons(x1, cons(x2, x3))) -> c4(MARK(cons(x2, x3)))
   A__SEL(s(cons(z0, z1)), cons(x1, cons(x2, x3))) -> c4(MARK(cons(x2, x3)))
   A__SEL(s(from(from(z0))), cons(x1, x2)) -> c4(A__SEL(a__from(a__from(mark(z0))), mark(x2)), MARK(x2))
   A__SEL(s(from(sel(z0, z1))), cons(x1, x2)) -> c4(A__SEL(a__from(a__sel(mark(z0), mark(z1))), mark(x2)), MARK(x2))
   A__SEL(s(from(cons(z0, z1))), cons(x1, x2)) -> c4(A__SEL(a__from(cons(mark(z0), z1)), mark(x2)), MARK(x2))
   A__SEL(s(from(s(z0))), cons(x1, x2)) -> c4(A__SEL(a__from(s(mark(z0))), mark(x2)), MARK(x2))
   A__SEL(s(from(0)), cons(x1, x2)) -> c4(A__SEL(a__from(0), mark(x2)), MARK(x2))
   A__SEL(s(from(x0)), cons(x1, s(z0))) -> c4(MARK(s(z0)))
   A__SEL(s(from(x0)), cons(x1, x2)) -> c4(MARK(x2))
   A__SEL(s(sel(x0, from(z0))), cons(x2, x3)) -> c4(A__SEL(a__sel(mark(x0), a__from(mark(z0))), mark(x3)), MARK(x3))
   A__SEL(s(sel(x0, sel(z0, z1))), cons(x2, x3)) -> c4(A__SEL(a__sel(mark(x0), a__sel(mark(z0), mark(z1))), mark(x3)), MARK(x3))
   A__SEL(s(sel(x0, cons(z0, z1))), cons(x2, x3)) -> c4(A__SEL(a__sel(mark(x0), cons(mark(z0), z1)), mark(x3)), MARK(x3))
   A__SEL(s(sel(x0, s(z0))), cons(x2, x3)) -> c4(A__SEL(a__sel(mark(x0), s(mark(z0))), mark(x3)), MARK(x3))
   A__SEL(s(sel(x0, 0)), cons(x2, x3)) -> c4(A__SEL(a__sel(mark(x0), 0), mark(x3)), MARK(x3))
   A__SEL(s(sel(from(z0), x1)), cons(x2, x3)) -> c4(A__SEL(a__sel(a__from(mark(z0)), mark(x1)), mark(x3)), MARK(x3))
   A__SEL(s(sel(sel(z0, z1), x1)), cons(x2, x3)) -> c4(A__SEL(a__sel(a__sel(mark(z0), mark(z1)), mark(x1)), mark(x3)), MARK(x3))
   A__SEL(s(sel(cons(z0, z1), x1)), cons(x2, x3)) -> c4(A__SEL(a__sel(cons(mark(z0), z1), mark(x1)), mark(x3)), MARK(x3))
   A__SEL(s(sel(s(z0), x1)), cons(x2, x3)) -> c4(A__SEL(a__sel(s(mark(z0)), mark(x1)), mark(x3)), MARK(x3))
   A__SEL(s(sel(0, x1)), cons(x2, x3)) -> c4(A__SEL(a__sel(0, mark(x1)), mark(x3)), MARK(x3))
   A__SEL(s(sel(x0, x1)), cons(x2, s(z0))) -> c4(MARK(s(z0)))
   A__SEL(s(sel(x0, x1)), cons(x2, x3)) -> c4(MARK(x3))
   A__SEL(s(s(from(z0))), cons(x1, x2)) -> c4(A__SEL(s(a__from(mark(z0))), mark(x2)), MARK(x2))
   A__SEL(s(s(sel(z0, z1))), cons(x1, x2)) -> c4(A__SEL(s(a__sel(mark(z0), mark(z1))), mark(x2)), MARK(x2))
   A__SEL(s(s(cons(z0, z1))), cons(x1, x2)) -> c4(A__SEL(s(cons(mark(z0), z1)), mark(x2)), MARK(x2))
   A__SEL(s(s(s(z0))), cons(x1, x2)) -> c4(A__SEL(s(s(mark(z0))), mark(x2)), MARK(x2))
   A__SEL(s(s(0)), cons(x1, x2)) -> c4(A__SEL(s(0), mark(x2)), MARK(x2))
   A__SEL(s(s(x0)), cons(x1, s(z0))) -> c4(MARK(s(z0)))
   A__SEL(s(0), cons(x0, s(z0))) -> c4(MARK(s(z0)))
   MARK(sel(x0, from(x1))) -> c7(A__SEL(mark(x0), cons(mark(mark(x1)), from(s(mark(x1))))), MARK(x0))
   MARK(sel(x0, from(from(z0)))) -> c7(A__SEL(mark(x0), a__from(a__from(mark(z0)))), MARK(x0))
   MARK(sel(x0, from(sel(z0, z1)))) -> c7(A__SEL(mark(x0), a__from(a__sel(mark(z0), mark(z1)))), MARK(x0))
   MARK(sel(x0, from(cons(z0, z1)))) -> c7(A__SEL(mark(x0), a__from(cons(mark(z0), z1))), MARK(x0))
   MARK(sel(x0, from(s(z0)))) -> c7(A__SEL(mark(x0), a__from(s(mark(z0)))), MARK(x0))
   MARK(sel(x0, from(0))) -> c7(A__SEL(mark(x0), a__from(0)), MARK(x0))
   MARK(sel(from(z0), from(x1))) -> c7(A__SEL(a__from(mark(z0)), a__from(mark(x1))), MARK(from(z0)))
   MARK(sel(sel(z0, z1), from(x1))) -> c7(A__SEL(a__sel(mark(z0), mark(z1)), a__from(mark(x1))), MARK(sel(z0, z1)))
   MARK(sel(s(z0), from(x1))) -> c7(A__SEL(s(mark(z0)), a__from(mark(x1))), MARK(s(z0)))
   MARK(sel(x0, from(x1))) -> c7(MARK(x0))
   MARK(sel(cons(z0, z1), from(x1))) -> c7(MARK(cons(z0, z1)))
   MARK(sel(0, from(x1))) -> c7(A__SEL(0, a__from(mark(x1))))
   MARK(sel(x0, sel(x1, from(z0)))) -> c7(A__SEL(mark(x0), a__sel(mark(x1), a__from(mark(z0)))), MARK(x0))
   MARK(sel(x0, sel(x1, sel(z0, z1)))) -> c7(A__SEL(mark(x0), a__sel(mark(x1), a__sel(mark(z0), mark(z1)))), MARK(x0))
   MARK(sel(x0, sel(x1, cons(z0, z1)))) -> c7(A__SEL(mark(x0), a__sel(mark(x1), cons(mark(z0), z1))), MARK(x0))
   MARK(sel(x0, sel(x1, s(z0)))) -> c7(A__SEL(mark(x0), a__sel(mark(x1), s(mark(z0)))), MARK(x0))
   MARK(sel(x0, sel(x1, 0))) -> c7(A__SEL(mark(x0), a__sel(mark(x1), 0)), MARK(x0))
   MARK(sel(x0, sel(from(z0), x2))) -> c7(A__SEL(mark(x0), a__sel(a__from(mark(z0)), mark(x2))), MARK(x0))
   MARK(sel(x0, sel(sel(z0, z1), x2))) -> c7(A__SEL(mark(x0), a__sel(a__sel(mark(z0), mark(z1)), mark(x2))), MARK(x0))
   MARK(sel(x0, sel(cons(z0, z1), x2))) -> c7(A__SEL(mark(x0), a__sel(cons(mark(z0), z1), mark(x2))), MARK(x0))
   MARK(sel(x0, sel(s(z0), x2))) -> c7(A__SEL(mark(x0), a__sel(s(mark(z0)), mark(x2))), MARK(x0))
   MARK(sel(x0, sel(0, x2))) -> c7(A__SEL(mark(x0), a__sel(0, mark(x2))), MARK(x0))
   MARK(sel(from(z0), sel(x1, x2))) -> c7(A__SEL(a__from(mark(z0)), a__sel(mark(x1), mark(x2))), MARK(from(z0)))
   MARK(sel(sel(z0, z1), sel(x1, x2))) -> c7(A__SEL(a__sel(mark(z0), mark(z1)), a__sel(mark(x1), mark(x2))), MARK(sel(z0, z1)))
   MARK(sel(s(z0), sel(x1, x2))) -> c7(A__SEL(s(mark(z0)), a__sel(mark(x1), mark(x2))), MARK(s(z0)))
   MARK(sel(x0, sel(x1, x2))) -> c7(MARK(x0))
   MARK(sel(cons(z0, z1), sel(x1, x2))) -> c7(MARK(cons(z0, z1)))
   MARK(sel(0, sel(x1, x2))) -> c7(A__SEL(0, a__sel(mark(x1), mark(x2))))
   MARK(sel(x0, cons(from(z0), x2))) -> c7(A__SEL(mark(x0), cons(a__from(mark(z0)), x2)), MARK(x0))
   MARK(sel(x0, cons(sel(z0, z1), x2))) -> c7(A__SEL(mark(x0), cons(a__sel(mark(z0), mark(z1)), x2)), MARK(x0))
   MARK(sel(x0, cons(cons(z0, z1), x2))) -> c7(A__SEL(mark(x0), cons(cons(mark(z0), z1), x2)), MARK(x0))
   MARK(sel(x0, cons(s(z0), x2))) -> c7(A__SEL(mark(x0), cons(s(mark(z0)), x2)), MARK(x0))
   MARK(sel(x0, cons(0, x2))) -> c7(A__SEL(mark(x0), cons(0, x2)), MARK(x0))
   MARK(sel(from(z0), cons(x1, x2))) -> c7(A__SEL(a__from(mark(z0)), cons(mark(x1), x2)), MARK(from(z0)))
   MARK(sel(sel(z0, z1), cons(x1, x2))) -> c7(A__SEL(a__sel(mark(z0), mark(z1)), cons(mark(x1), x2)), MARK(sel(z0, z1)))
   MARK(sel(s(z0), cons(x1, x2))) -> c7(A__SEL(s(mark(z0)), cons(mark(x1), x2)), MARK(s(z0)))
   MARK(sel(cons(z0, z1), cons(x1, x2))) -> c7(MARK(cons(z0, z1)))
   MARK(sel(0, cons(x1, x2))) -> c7(A__SEL(0, cons(mark(x1), x2)))
   MARK(sel(from(from(z0)), x1)) -> c7(A__SEL(a__from(a__from(mark(z0))), mark(x1)), MARK(from(from(z0))))
   MARK(sel(from(sel(z0, z1)), x1)) -> c7(A__SEL(a__from(a__sel(mark(z0), mark(z1))), mark(x1)), MARK(from(sel(z0, z1))))
   MARK(sel(from(cons(z0, z1)), x1)) -> c7(A__SEL(a__from(cons(mark(z0), z1)), mark(x1)), MARK(from(cons(z0, z1))))
   MARK(sel(from(s(z0)), x1)) -> c7(A__SEL(a__from(s(mark(z0))), mark(x1)), MARK(from(s(z0))))
   MARK(sel(from(0), x1)) -> c7(A__SEL(a__from(0), mark(x1)), MARK(from(0)))
   MARK(sel(from(x0), x1)) -> c7(MARK(from(x0)))
   MARK(sel(from(x0), s(z0))) -> c7(MARK(from(x0)))
   MARK(sel(from(x0), 0)) -> c7(MARK(from(x0)))
   MARK(sel(sel(x0, from(z0)), x2)) -> c7(A__SEL(a__sel(mark(x0), a__from(mark(z0))), mark(x2)), MARK(sel(x0, from(z0))))
   MARK(sel(sel(x0, sel(z0, z1)), x2)) -> c7(A__SEL(a__sel(mark(x0), a__sel(mark(z0), mark(z1))), mark(x2)), MARK(sel(x0, sel(z0, z1))))
   MARK(sel(sel(x0, cons(z0, z1)), x2)) -> c7(A__SEL(a__sel(mark(x0), cons(mark(z0), z1)), mark(x2)), MARK(sel(x0, cons(z0, z1))))
   MARK(sel(sel(x0, s(z0)), x2)) -> c7(A__SEL(a__sel(mark(x0), s(mark(z0))), mark(x2)), MARK(sel(x0, s(z0))))
   MARK(sel(sel(x0, 0), x2)) -> c7(A__SEL(a__sel(mark(x0), 0), mark(x2)), MARK(sel(x0, 0)))
   MARK(sel(sel(from(z0), x1), x2)) -> c7(A__SEL(a__sel(a__from(mark(z0)), mark(x1)), mark(x2)), MARK(sel(from(z0), x1)))
   MARK(sel(sel(sel(z0, z1), x1), x2)) -> c7(A__SEL(a__sel(a__sel(mark(z0), mark(z1)), mark(x1)), mark(x2)), MARK(sel(sel(z0, z1), x1)))
   MARK(sel(sel(cons(z0, z1), x1), x2)) -> c7(A__SEL(a__sel(cons(mark(z0), z1), mark(x1)), mark(x2)), MARK(sel(cons(z0, z1), x1)))
   MARK(sel(sel(s(z0), x1), x2)) -> c7(A__SEL(a__sel(s(mark(z0)), mark(x1)), mark(x2)), MARK(sel(s(z0), x1)))
   MARK(sel(sel(0, x1), x2)) -> c7(A__SEL(a__sel(0, mark(x1)), mark(x2)), MARK(sel(0, x1)))
   MARK(sel(sel(x0, x1), s(z0))) -> c7(MARK(sel(x0, x1)))
   MARK(sel(sel(x0, x1), 0)) -> c7(MARK(sel(x0, x1)))
   MARK(sel(sel(x0, x1), x2)) -> c7(MARK(sel(x0, x1)))
   MARK(sel(s(from(z0)), x1)) -> c7(A__SEL(s(a__from(mark(z0))), mark(x1)), MARK(s(from(z0))))
   MARK(sel(s(sel(z0, z1)), x1)) -> c7(A__SEL(s(a__sel(mark(z0), mark(z1))), mark(x1)), MARK(s(sel(z0, z1))))
   MARK(sel(s(cons(z0, z1)), x1)) -> c7(A__SEL(s(cons(mark(z0), z1)), mark(x1)), MARK(s(cons(z0, z1))))
   MARK(sel(s(s(z0)), x1)) -> c7(A__SEL(s(s(mark(z0))), mark(x1)), MARK(s(s(z0))))
   MARK(sel(s(0), x1)) -> c7(A__SEL(s(0), mark(x1)), MARK(s(0)))
   MARK(sel(s(x0), x1)) -> c7(MARK(s(x0)))
   MARK(sel(s(x0), s(z0))) -> c7(MARK(s(x0)))
   MARK(sel(s(x0), 0)) -> c7(MARK(s(x0)))
   MARK(sel(x0, from(x1))) -> c8(A__SEL(mark(x0), cons(mark(mark(x1)), from(s(mark(x1))))), MARK(from(x1)))
   MARK(sel(x0, from(from(z0)))) -> c8(A__SEL(mark(x0), a__from(a__from(mark(z0)))), MARK(from(from(z0))))
   MARK(sel(x0, from(sel(z0, z1)))) -> c8(A__SEL(mark(x0), a__from(a__sel(mark(z0), mark(z1)))), MARK(from(sel(z0, z1))))
   MARK(sel(x0, from(cons(z0, z1)))) -> c8(A__SEL(mark(x0), a__from(cons(mark(z0), z1))), MARK(from(cons(z0, z1))))
   MARK(sel(x0, from(s(z0)))) -> c8(A__SEL(mark(x0), a__from(s(mark(z0)))), MARK(from(s(z0))))
   MARK(sel(x0, from(0))) -> c8(A__SEL(mark(x0), a__from(0)), MARK(from(0)))
   MARK(sel(from(z0), from(x1))) -> c8(A__SEL(a__from(mark(z0)), a__from(mark(x1))), MARK(from(x1)))
   MARK(sel(sel(z0, z1), from(x1))) -> c8(A__SEL(a__sel(mark(z0), mark(z1)), a__from(mark(x1))), MARK(from(x1)))
   MARK(sel(s(z0), from(x1))) -> c8(A__SEL(s(mark(z0)), a__from(mark(x1))), MARK(from(x1)))
   MARK(sel(0, from(x1))) -> c8(A__SEL(0, a__from(mark(x1))), MARK(from(x1)))
   MARK(sel(x0, from(x1))) -> c8(MARK(from(x1)))
   MARK(sel(cons(z0, z1), from(x1))) -> c8(MARK(from(x1)))
   MARK(sel(x0, sel(x1, from(z0)))) -> c8(A__SEL(mark(x0), a__sel(mark(x1), a__from(mark(z0)))), MARK(sel(x1, from(z0))))
   MARK(sel(x0, sel(x1, sel(z0, z1)))) -> c8(A__SEL(mark(x0), a__sel(mark(x1), a__sel(mark(z0), mark(z1)))), MARK(sel(x1, sel(z0, z1))))
   MARK(sel(x0, sel(x1, cons(z0, z1)))) -> c8(A__SEL(mark(x0), a__sel(mark(x1), cons(mark(z0), z1))), MARK(sel(x1, cons(z0, z1))))
   MARK(sel(x0, sel(x1, s(z0)))) -> c8(A__SEL(mark(x0), a__sel(mark(x1), s(mark(z0)))), MARK(sel(x1, s(z0))))
   MARK(sel(x0, sel(x1, 0))) -> c8(A__SEL(mark(x0), a__sel(mark(x1), 0)), MARK(sel(x1, 0)))
   MARK(sel(x0, sel(from(z0), x2))) -> c8(A__SEL(mark(x0), a__sel(a__from(mark(z0)), mark(x2))), MARK(sel(from(z0), x2)))
   MARK(sel(x0, sel(sel(z0, z1), x2))) -> c8(A__SEL(mark(x0), a__sel(a__sel(mark(z0), mark(z1)), mark(x2))), MARK(sel(sel(z0, z1), x2)))
   MARK(sel(x0, sel(cons(z0, z1), x2))) -> c8(A__SEL(mark(x0), a__sel(cons(mark(z0), z1), mark(x2))), MARK(sel(cons(z0, z1), x2)))
   MARK(sel(x0, sel(s(z0), x2))) -> c8(A__SEL(mark(x0), a__sel(s(mark(z0)), mark(x2))), MARK(sel(s(z0), x2)))
   MARK(sel(x0, sel(0, x2))) -> c8(A__SEL(mark(x0), a__sel(0, mark(x2))), MARK(sel(0, x2)))
   MARK(sel(from(z0), sel(x1, x2))) -> c8(A__SEL(a__from(mark(z0)), a__sel(mark(x1), mark(x2))), MARK(sel(x1, x2)))
   MARK(sel(sel(z0, z1), sel(x1, x2))) -> c8(A__SEL(a__sel(mark(z0), mark(z1)), a__sel(mark(x1), mark(x2))), MARK(sel(x1, x2)))
   MARK(sel(s(z0), sel(x1, x2))) -> c8(A__SEL(s(mark(z0)), a__sel(mark(x1), mark(x2))), MARK(sel(x1, x2)))
   MARK(sel(0, sel(x1, x2))) -> c8(A__SEL(0, a__sel(mark(x1), mark(x2))), MARK(sel(x1, x2)))
   MARK(sel(x0, sel(x1, x2))) -> c8(MARK(sel(x1, x2)))
   MARK(sel(cons(z0, z1), sel(x1, x2))) -> c8(MARK(sel(x1, x2)))
   MARK(sel(x0, cons(from(z0), x2))) -> c8(A__SEL(mark(x0), cons(a__from(mark(z0)), x2)), MARK(cons(from(z0), x2)))
   MARK(sel(x0, cons(sel(z0, z1), x2))) -> c8(A__SEL(mark(x0), cons(a__sel(mark(z0), mark(z1)), x2)), MARK(cons(sel(z0, z1), x2)))
   MARK(sel(x0, cons(cons(z0, z1), x2))) -> c8(A__SEL(mark(x0), cons(cons(mark(z0), z1), x2)), MARK(cons(cons(z0, z1), x2)))
   MARK(sel(x0, cons(s(z0), x2))) -> c8(A__SEL(mark(x0), cons(s(mark(z0)), x2)), MARK(cons(s(z0), x2)))
   MARK(sel(x0, cons(0, x2))) -> c8(A__SEL(mark(x0), cons(0, x2)), MARK(cons(0, x2)))
   MARK(sel(from(z0), cons(x1, x2))) -> c8(A__SEL(a__from(mark(z0)), cons(mark(x1), x2)), MARK(cons(x1, x2)))
   MARK(sel(sel(z0, z1), cons(x1, x2))) -> c8(A__SEL(a__sel(mark(z0), mark(z1)), cons(mark(x1), x2)), MARK(cons(x1, x2)))
   MARK(sel(s(z0), cons(x1, x2))) -> c8(A__SEL(s(mark(z0)), cons(mark(x1), x2)), MARK(cons(x1, x2)))
   MARK(sel(0, cons(x1, x2))) -> c8(A__SEL(0, cons(mark(x1), x2)), MARK(cons(x1, x2)))
   MARK(sel(x0, cons(x1, x2))) -> c8(MARK(cons(x1, x2)))
   MARK(sel(cons(z0, z1), cons(x1, x2))) -> c8(MARK(cons(x1, x2)))
   MARK(sel(from(from(z0)), x1)) -> c8(A__SEL(a__from(a__from(mark(z0))), mark(x1)), MARK(x1))
   MARK(sel(from(sel(z0, z1)), x1)) -> c8(A__SEL(a__from(a__sel(mark(z0), mark(z1))), mark(x1)), MARK(x1))
   MARK(sel(from(cons(z0, z1)), x1)) -> c8(A__SEL(a__from(cons(mark(z0), z1)), mark(x1)), MARK(x1))
   MARK(sel(from(s(z0)), x1)) -> c8(A__SEL(a__from(s(mark(z0))), mark(x1)), MARK(x1))
   MARK(sel(from(0), x1)) -> c8(A__SEL(a__from(0), mark(x1)), MARK(x1))
   MARK(sel(from(x0), s(z0))) -> c8(MARK(s(z0)))
   MARK(sel(from(x0), x1)) -> c8(MARK(x1))
   MARK(sel(sel(x0, from(z0)), x2)) -> c8(A__SEL(a__sel(mark(x0), a__from(mark(z0))), mark(x2)), MARK(x2))
   MARK(sel(sel(x0, sel(z0, z1)), x2)) -> c8(A__SEL(a__sel(mark(x0), a__sel(mark(z0), mark(z1))), mark(x2)), MARK(x2))
   MARK(sel(sel(x0, cons(z0, z1)), x2)) -> c8(A__SEL(a__sel(mark(x0), cons(mark(z0), z1)), mark(x2)), MARK(x2))
   MARK(sel(sel(x0, s(z0)), x2)) -> c8(A__SEL(a__sel(mark(x0), s(mark(z0))), mark(x2)), MARK(x2))
   MARK(sel(sel(x0, 0), x2)) -> c8(A__SEL(a__sel(mark(x0), 0), mark(x2)), MARK(x2))
   MARK(sel(sel(from(z0), x1), x2)) -> c8(A__SEL(a__sel(a__from(mark(z0)), mark(x1)), mark(x2)), MARK(x2))
   MARK(sel(sel(sel(z0, z1), x1), x2)) -> c8(A__SEL(a__sel(a__sel(mark(z0), mark(z1)), mark(x1)), mark(x2)), MARK(x2))
   MARK(sel(sel(cons(z0, z1), x1), x2)) -> c8(A__SEL(a__sel(cons(mark(z0), z1), mark(x1)), mark(x2)), MARK(x2))
   MARK(sel(sel(s(z0), x1), x2)) -> c8(A__SEL(a__sel(s(mark(z0)), mark(x1)), mark(x2)), MARK(x2))
   MARK(sel(sel(0, x1), x2)) -> c8(A__SEL(a__sel(0, mark(x1)), mark(x2)), MARK(x2))
   MARK(sel(sel(x0, x1), s(z0))) -> c8(MARK(s(z0)))
   MARK(sel(sel(x0, x1), x2)) -> c8(MARK(x2))
   MARK(sel(s(from(z0)), x1)) -> c8(A__SEL(s(a__from(mark(z0))), mark(x1)), MARK(x1))
   MARK(sel(s(sel(z0, z1)), x1)) -> c8(A__SEL(s(a__sel(mark(z0), mark(z1))), mark(x1)), MARK(x1))
   MARK(sel(s(cons(z0, z1)), x1)) -> c8(A__SEL(s(cons(mark(z0), z1)), mark(x1)), MARK(x1))
   MARK(sel(s(s(z0)), x1)) -> c8(A__SEL(s(s(mark(z0))), mark(x1)), MARK(x1))
   MARK(sel(s(0), x1)) -> c8(A__SEL(s(0), mark(x1)), MARK(x1))
   MARK(sel(s(x0), s(z0))) -> c8(MARK(s(z0)))
   MARK(sel(0, s(z0))) -> c8(MARK(s(z0)))
   A__FROM(from(y0)) -> c(MARK(from(y0)))
   A__FROM(cons(y0, y1)) -> c(MARK(cons(y0, y1)))
   A__FROM(s(y0)) -> c(MARK(s(y0)))
   A__FROM(sel(y0, s(y1))) -> c(MARK(sel(y0, s(y1))))
   A__FROM(sel(y0, 0)) -> c(MARK(sel(y0, 0)))
   A__FROM(sel(cons(y0, y1), y2)) -> c(MARK(sel(cons(y0, y1), y2)))
   A__FROM(sel(y0, from(y1))) -> c(MARK(sel(y0, from(y1))))
   A__FROM(sel(y0, from(from(y1)))) -> c(MARK(sel(y0, from(from(y1)))))
   A__FROM(sel(y0, from(sel(y1, y2)))) -> c(MARK(sel(y0, from(sel(y1, y2)))))
   A__FROM(sel(y0, from(cons(y1, y2)))) -> c(MARK(sel(y0, from(cons(y1, y2)))))
   A__FROM(sel(y0, from(s(y1)))) -> c(MARK(sel(y0, from(s(y1)))))
   A__FROM(sel(y0, from(0))) -> c(MARK(sel(y0, from(0))))
   A__FROM(sel(from(y0), from(y1))) -> c(MARK(sel(from(y0), from(y1))))
   A__FROM(sel(sel(y0, y1), from(y2))) -> c(MARK(sel(sel(y0, y1), from(y2))))
   A__FROM(sel(s(y0), from(y1))) -> c(MARK(sel(s(y0), from(y1))))
   A__FROM(sel(cons(y0, y1), from(y2))) -> c(MARK(sel(cons(y0, y1), from(y2))))
   A__FROM(sel(0, from(y0))) -> c(MARK(sel(0, from(y0))))
   A__FROM(sel(y0, sel(y1, from(y2)))) -> c(MARK(sel(y0, sel(y1, from(y2)))))
   A__FROM(sel(y0, sel(y1, sel(y2, y3)))) -> c(MARK(sel(y0, sel(y1, sel(y2, y3)))))
   A__FROM(sel(y0, sel(y1, cons(y2, y3)))) -> c(MARK(sel(y0, sel(y1, cons(y2, y3)))))
   A__FROM(sel(y0, sel(y1, s(y2)))) -> c(MARK(sel(y0, sel(y1, s(y2)))))
   A__FROM(sel(y0, sel(y1, 0))) -> c(MARK(sel(y0, sel(y1, 0))))
   A__FROM(sel(y0, sel(from(y1), y2))) -> c(MARK(sel(y0, sel(from(y1), y2))))
   A__FROM(sel(y0, sel(sel(y1, y2), y3))) -> c(MARK(sel(y0, sel(sel(y1, y2), y3))))
   A__FROM(sel(y0, sel(cons(y1, y2), y3))) -> c(MARK(sel(y0, sel(cons(y1, y2), y3))))
   A__FROM(sel(y0, sel(s(y1), y2))) -> c(MARK(sel(y0, sel(s(y1), y2))))
   A__FROM(sel(y0, sel(0, y1))) -> c(MARK(sel(y0, sel(0, y1))))
   A__FROM(sel(from(y0), sel(y1, y2))) -> c(MARK(sel(from(y0), sel(y1, y2))))
   A__FROM(sel(sel(y0, y1), sel(y2, y3))) -> c(MARK(sel(sel(y0, y1), sel(y2, y3))))
   A__FROM(sel(s(y0), sel(y1, y2))) -> c(MARK(sel(s(y0), sel(y1, y2))))
   A__FROM(sel(y0, sel(y1, y2))) -> c(MARK(sel(y0, sel(y1, y2))))
   A__FROM(sel(cons(y0, y1), sel(y2, y3))) -> c(MARK(sel(cons(y0, y1), sel(y2, y3))))
   A__FROM(sel(0, sel(y0, y1))) -> c(MARK(sel(0, sel(y0, y1))))
   A__FROM(sel(y0, cons(from(y1), y2))) -> c(MARK(sel(y0, cons(from(y1), y2))))
   A__FROM(sel(y0, cons(sel(y1, y2), y3))) -> c(MARK(sel(y0, cons(sel(y1, y2), y3))))
   A__FROM(sel(y0, cons(cons(y1, y2), y3))) -> c(MARK(sel(y0, cons(cons(y1, y2), y3))))
   A__FROM(sel(y0, cons(s(y1), y2))) -> c(MARK(sel(y0, cons(s(y1), y2))))
   A__FROM(sel(y0, cons(0, y1))) -> c(MARK(sel(y0, cons(0, y1))))
   A__FROM(sel(from(y0), cons(y1, y2))) -> c(MARK(sel(from(y0), cons(y1, y2))))
   A__FROM(sel(sel(y0, y1), cons(y2, y3))) -> c(MARK(sel(sel(y0, y1), cons(y2, y3))))
   A__FROM(sel(s(y0), cons(y1, y2))) -> c(MARK(sel(s(y0), cons(y1, y2))))
   A__FROM(sel(cons(y0, y1), cons(y2, y3))) -> c(MARK(sel(cons(y0, y1), cons(y2, y3))))
   A__FROM(sel(0, cons(y0, y1))) -> c(MARK(sel(0, cons(y0, y1))))
   A__FROM(sel(from(from(y0)), y1)) -> c(MARK(sel(from(from(y0)), y1)))
   A__FROM(sel(from(sel(y0, y1)), y2)) -> c(MARK(sel(from(sel(y0, y1)), y2)))
   A__FROM(sel(from(cons(y0, y1)), y2)) -> c(MARK(sel(from(cons(y0, y1)), y2)))
   A__FROM(sel(from(s(y0)), y1)) -> c(MARK(sel(from(s(y0)), y1)))
   A__FROM(sel(from(0), y0)) -> c(MARK(sel(from(0), y0)))
   A__FROM(sel(from(y0), y1)) -> c(MARK(sel(from(y0), y1)))
   A__FROM(sel(from(y0), s(y1))) -> c(MARK(sel(from(y0), s(y1))))
   A__FROM(sel(from(y0), 0)) -> c(MARK(sel(from(y0), 0)))
   A__FROM(sel(sel(y0, from(y1)), y2)) -> c(MARK(sel(sel(y0, from(y1)), y2)))
   A__FROM(sel(sel(y0, sel(y1, y2)), y3)) -> c(MARK(sel(sel(y0, sel(y1, y2)), y3)))
   A__FROM(sel(sel(y0, cons(y1, y2)), y3)) -> c(MARK(sel(sel(y0, cons(y1, y2)), y3)))
   A__FROM(sel(sel(y0, s(y1)), y2)) -> c(MARK(sel(sel(y0, s(y1)), y2)))
   A__FROM(sel(sel(y0, 0), y1)) -> c(MARK(sel(sel(y0, 0), y1)))
   A__FROM(sel(sel(from(y0), y1), y2)) -> c(MARK(sel(sel(from(y0), y1), y2)))
   A__FROM(sel(sel(sel(y0, y1), y2), y3)) -> c(MARK(sel(sel(sel(y0, y1), y2), y3)))
   A__FROM(sel(sel(cons(y0, y1), y2), y3)) -> c(MARK(sel(sel(cons(y0, y1), y2), y3)))
   A__FROM(sel(sel(s(y0), y1), y2)) -> c(MARK(sel(sel(s(y0), y1), y2)))
   A__FROM(sel(sel(0, y0), y1)) -> c(MARK(sel(sel(0, y0), y1)))
   A__FROM(sel(sel(y0, y1), s(y2))) -> c(MARK(sel(sel(y0, y1), s(y2))))
   A__FROM(sel(sel(y0, y1), 0)) -> c(MARK(sel(sel(y0, y1), 0)))
   A__FROM(sel(sel(y0, y1), y2)) -> c(MARK(sel(sel(y0, y1), y2)))
   A__FROM(sel(s(from(y0)), y1)) -> c(MARK(sel(s(from(y0)), y1)))
   A__FROM(sel(s(sel(y0, y1)), y2)) -> c(MARK(sel(s(sel(y0, y1)), y2)))
   A__FROM(sel(s(cons(y0, y1)), y2)) -> c(MARK(sel(s(cons(y0, y1)), y2)))
   A__FROM(sel(s(s(y0)), y1)) -> c(MARK(sel(s(s(y0)), y1)))
   A__FROM(sel(s(0), y0)) -> c(MARK(sel(s(0), y0)))
   A__FROM(sel(s(y0), y1)) -> c(MARK(sel(s(y0), y1)))
   A__FROM(sel(s(y0), s(y1))) -> c(MARK(sel(s(y0), s(y1))))
   A__FROM(sel(s(y0), 0)) -> c(MARK(sel(s(y0), 0)))
   A__FROM(sel(y0, cons(y1, y2))) -> c(MARK(sel(y0, cons(y1, y2))))
   A__FROM(sel(0, s(y0))) -> c(MARK(sel(0, s(y0))))
   MARK(from(from(z0))) -> c6(A__FROM(a__from(mark(z0))), MARK(from(z0)))
   MARK(from(sel(z0, z1))) -> c6(A__FROM(a__sel(mark(z0), mark(z1))), MARK(sel(z0, z1)))
   MARK(from(cons(z0, z1))) -> c6(A__FROM(cons(mark(z0), z1)), MARK(cons(z0, z1)))
   MARK(from(s(z0))) -> c6(A__FROM(s(mark(z0))), MARK(s(z0)))
S tuples:
   A__SEL(0, cons(z0, z1)) -> c2(MARK(z0))
   MARK(cons(z0, z1)) -> c9(MARK(z0))
   MARK(s(z0)) -> c10(MARK(z0))
   A__SEL(s(x0), cons(x1, s(z0))) -> c3(MARK(x0))
   A__SEL(s(x0), cons(x1, 0)) -> c3(MARK(x0))
   A__SEL(s(cons(z0, z1)), cons(x1, x2)) -> c3(MARK(cons(z0, z1)))
   A__SEL(s(x0), cons(x1, s(z0))) -> c4(MARK(s(z0)))
   A__SEL(s(cons(z0, z1)), cons(x1, x2)) -> c4(MARK(x2))
   MARK(sel(x0, s(z0))) -> c7(MARK(x0))
   MARK(sel(x0, 0)) -> c7(MARK(x0))
   MARK(sel(cons(z0, z1), x1)) -> c7(MARK(cons(z0, z1)))
   MARK(sel(x0, s(z0))) -> c8(MARK(s(z0)))
   MARK(sel(cons(z0, z1), x1)) -> c8(MARK(x1))
   A__SEL(s(x0), cons(x1, from(x2))) -> c3(A__SEL(mark(x0), cons(mark(mark(x2)), from(s(mark(x2))))), MARK(x0))
   A__SEL(s(x0), cons(x1, from(from(z0)))) -> c3(A__SEL(mark(x0), a__from(a__from(mark(z0)))), MARK(x0))
   A__SEL(s(x0), cons(x1, from(sel(z0, z1)))) -> c3(A__SEL(mark(x0), a__from(a__sel(mark(z0), mark(z1)))), MARK(x0))
   A__SEL(s(x0), cons(x1, from(cons(z0, z1)))) -> c3(A__SEL(mark(x0), a__from(cons(mark(z0), z1))), MARK(x0))
   A__SEL(s(x0), cons(x1, from(s(z0)))) -> c3(A__SEL(mark(x0), a__from(s(mark(z0)))), MARK(x0))
   A__SEL(s(x0), cons(x1, from(0))) -> c3(A__SEL(mark(x0), a__from(0)), MARK(x0))
   A__SEL(s(from(z0)), cons(x1, from(x2))) -> c3(A__SEL(a__from(mark(z0)), a__from(mark(x2))), MARK(from(z0)))
   A__SEL(s(sel(z0, z1)), cons(x1, from(x2))) -> c3(A__SEL(a__sel(mark(z0), mark(z1)), a__from(mark(x2))), MARK(sel(z0, z1)))
   A__SEL(s(s(z0)), cons(x1, from(x2))) -> c3(A__SEL(s(mark(z0)), a__from(mark(x2))), MARK(s(z0)))
   A__SEL(s(x0), cons(x1, from(x2))) -> c3(MARK(x0))
   A__SEL(s(cons(z0, z1)), cons(x1, from(x2))) -> c3(MARK(cons(z0, z1)))
   A__SEL(s(0), cons(x1, from(x2))) -> c3(A__SEL(0, a__from(mark(x2))))
   A__SEL(s(x0), cons(x1, sel(x2, from(z0)))) -> c3(A__SEL(mark(x0), a__sel(mark(x2), a__from(mark(z0)))), MARK(x0))
   A__SEL(s(x0), cons(x1, sel(x2, sel(z0, z1)))) -> c3(A__SEL(mark(x0), a__sel(mark(x2), a__sel(mark(z0), mark(z1)))), MARK(x0))
   A__SEL(s(x0), cons(x1, sel(x2, cons(z0, z1)))) -> c3(A__SEL(mark(x0), a__sel(mark(x2), cons(mark(z0), z1))), MARK(x0))
   A__SEL(s(x0), cons(x1, sel(x2, s(z0)))) -> c3(A__SEL(mark(x0), a__sel(mark(x2), s(mark(z0)))), MARK(x0))
   A__SEL(s(x0), cons(x1, sel(x2, 0))) -> c3(A__SEL(mark(x0), a__sel(mark(x2), 0)), MARK(x0))
   A__SEL(s(x0), cons(x1, sel(from(z0), x3))) -> c3(A__SEL(mark(x0), a__sel(a__from(mark(z0)), mark(x3))), MARK(x0))
   A__SEL(s(x0), cons(x1, sel(sel(z0, z1), x3))) -> c3(A__SEL(mark(x0), a__sel(a__sel(mark(z0), mark(z1)), mark(x3))), MARK(x0))
   A__SEL(s(x0), cons(x1, sel(cons(z0, z1), x3))) -> c3(A__SEL(mark(x0), a__sel(cons(mark(z0), z1), mark(x3))), MARK(x0))
   A__SEL(s(x0), cons(x1, sel(s(z0), x3))) -> c3(A__SEL(mark(x0), a__sel(s(mark(z0)), mark(x3))), MARK(x0))
   A__SEL(s(x0), cons(x1, sel(0, x3))) -> c3(A__SEL(mark(x0), a__sel(0, mark(x3))), MARK(x0))
   A__SEL(s(from(z0)), cons(x1, sel(x2, x3))) -> c3(A__SEL(a__from(mark(z0)), a__sel(mark(x2), mark(x3))), MARK(from(z0)))
   A__SEL(s(sel(z0, z1)), cons(x1, sel(x2, x3))) -> c3(A__SEL(a__sel(mark(z0), mark(z1)), a__sel(mark(x2), mark(x3))), MARK(sel(z0, z1)))
   A__SEL(s(s(z0)), cons(x1, sel(x2, x3))) -> c3(A__SEL(s(mark(z0)), a__sel(mark(x2), mark(x3))), MARK(s(z0)))
   A__SEL(s(x0), cons(x1, sel(x2, x3))) -> c3(MARK(x0))
   A__SEL(s(cons(z0, z1)), cons(x1, sel(x2, x3))) -> c3(MARK(cons(z0, z1)))
   A__SEL(s(0), cons(x1, sel(x2, x3))) -> c3(A__SEL(0, a__sel(mark(x2), mark(x3))))
   A__SEL(s(x0), cons(x1, cons(from(z0), x3))) -> c3(A__SEL(mark(x0), cons(a__from(mark(z0)), x3)), MARK(x0))
   A__SEL(s(x0), cons(x1, cons(sel(z0, z1), x3))) -> c3(A__SEL(mark(x0), cons(a__sel(mark(z0), mark(z1)), x3)), MARK(x0))
   A__SEL(s(x0), cons(x1, cons(cons(z0, z1), x3))) -> c3(A__SEL(mark(x0), cons(cons(mark(z0), z1), x3)), MARK(x0))
   A__SEL(s(x0), cons(x1, cons(s(z0), x3))) -> c3(A__SEL(mark(x0), cons(s(mark(z0)), x3)), MARK(x0))
   A__SEL(s(x0), cons(x1, cons(0, x3))) -> c3(A__SEL(mark(x0), cons(0, x3)), MARK(x0))
   A__SEL(s(from(z0)), cons(x1, cons(x2, x3))) -> c3(A__SEL(a__from(mark(z0)), cons(mark(x2), x3)), MARK(from(z0)))
   A__SEL(s(sel(z0, z1)), cons(x1, cons(x2, x3))) -> c3(A__SEL(a__sel(mark(z0), mark(z1)), cons(mark(x2), x3)), MARK(sel(z0, z1)))
   A__SEL(s(s(z0)), cons(x1, cons(x2, x3))) -> c3(A__SEL(s(mark(z0)), cons(mark(x2), x3)), MARK(s(z0)))
   A__SEL(s(cons(z0, z1)), cons(x1, cons(x2, x3))) -> c3(MARK(cons(z0, z1)))
   A__SEL(s(0), cons(x1, cons(x2, x3))) -> c3(A__SEL(0, cons(mark(x2), x3)))
   A__SEL(s(from(from(z0))), cons(x1, x2)) -> c3(A__SEL(a__from(a__from(mark(z0))), mark(x2)), MARK(from(from(z0))))
   A__SEL(s(from(sel(z0, z1))), cons(x1, x2)) -> c3(A__SEL(a__from(a__sel(mark(z0), mark(z1))), mark(x2)), MARK(from(sel(z0, z1))))
   A__SEL(s(from(cons(z0, z1))), cons(x1, x2)) -> c3(A__SEL(a__from(cons(mark(z0), z1)), mark(x2)), MARK(from(cons(z0, z1))))
   A__SEL(s(from(s(z0))), cons(x1, x2)) -> c3(A__SEL(a__from(s(mark(z0))), mark(x2)), MARK(from(s(z0))))
   A__SEL(s(from(0)), cons(x1, x2)) -> c3(A__SEL(a__from(0), mark(x2)), MARK(from(0)))
   A__SEL(s(from(x0)), cons(x1, x2)) -> c3(MARK(from(x0)))
   A__SEL(s(from(x0)), cons(x1, s(z0))) -> c3(MARK(from(x0)))
   A__SEL(s(from(x0)), cons(x1, 0)) -> c3(MARK(from(x0)))
   A__SEL(s(sel(x0, from(z0))), cons(x2, x3)) -> c3(A__SEL(a__sel(mark(x0), a__from(mark(z0))), mark(x3)), MARK(sel(x0, from(z0))))
   A__SEL(s(sel(x0, sel(z0, z1))), cons(x2, x3)) -> c3(A__SEL(a__sel(mark(x0), a__sel(mark(z0), mark(z1))), mark(x3)), MARK(sel(x0, sel(z0, z1))))
   A__SEL(s(sel(x0, cons(z0, z1))), cons(x2, x3)) -> c3(A__SEL(a__sel(mark(x0), cons(mark(z0), z1)), mark(x3)), MARK(sel(x0, cons(z0, z1))))
   A__SEL(s(sel(x0, s(z0))), cons(x2, x3)) -> c3(A__SEL(a__sel(mark(x0), s(mark(z0))), mark(x3)), MARK(sel(x0, s(z0))))
   A__SEL(s(sel(x0, 0)), cons(x2, x3)) -> c3(A__SEL(a__sel(mark(x0), 0), mark(x3)), MARK(sel(x0, 0)))
   A__SEL(s(sel(from(z0), x1)), cons(x2, x3)) -> c3(A__SEL(a__sel(a__from(mark(z0)), mark(x1)), mark(x3)), MARK(sel(from(z0), x1)))
   A__SEL(s(sel(sel(z0, z1), x1)), cons(x2, x3)) -> c3(A__SEL(a__sel(a__sel(mark(z0), mark(z1)), mark(x1)), mark(x3)), MARK(sel(sel(z0, z1), x1)))
   A__SEL(s(sel(cons(z0, z1), x1)), cons(x2, x3)) -> c3(A__SEL(a__sel(cons(mark(z0), z1), mark(x1)), mark(x3)), MARK(sel(cons(z0, z1), x1)))
   A__SEL(s(sel(s(z0), x1)), cons(x2, x3)) -> c3(A__SEL(a__sel(s(mark(z0)), mark(x1)), mark(x3)), MARK(sel(s(z0), x1)))
   A__SEL(s(sel(0, x1)), cons(x2, x3)) -> c3(A__SEL(a__sel(0, mark(x1)), mark(x3)), MARK(sel(0, x1)))
   A__SEL(s(sel(x0, x1)), cons(x2, s(z0))) -> c3(MARK(sel(x0, x1)))
   A__SEL(s(sel(x0, x1)), cons(x2, 0)) -> c3(MARK(sel(x0, x1)))
   A__SEL(s(sel(x0, x1)), cons(x2, x3)) -> c3(MARK(sel(x0, x1)))
   A__SEL(s(s(from(z0))), cons(x1, x2)) -> c3(A__SEL(s(a__from(mark(z0))), mark(x2)), MARK(s(from(z0))))
   A__SEL(s(s(sel(z0, z1))), cons(x1, x2)) -> c3(A__SEL(s(a__sel(mark(z0), mark(z1))), mark(x2)), MARK(s(sel(z0, z1))))
   A__SEL(s(s(cons(z0, z1))), cons(x1, x2)) -> c3(A__SEL(s(cons(mark(z0), z1)), mark(x2)), MARK(s(cons(z0, z1))))
   A__SEL(s(s(s(z0))), cons(x1, x2)) -> c3(A__SEL(s(s(mark(z0))), mark(x2)), MARK(s(s(z0))))
   A__SEL(s(s(0)), cons(x1, x2)) -> c3(A__SEL(s(0), mark(x2)), MARK(s(0)))
   A__SEL(s(s(x0)), cons(x1, x2)) -> c3(MARK(s(x0)))
   A__SEL(s(s(x0)), cons(x1, s(z0))) -> c3(MARK(s(x0)))
   A__SEL(s(s(x0)), cons(x1, 0)) -> c3(MARK(s(x0)))
   A__SEL(s(x0), cons(x1, from(x2))) -> c4(A__SEL(mark(x0), cons(mark(mark(x2)), from(s(mark(x2))))), MARK(from(x2)))
   A__SEL(s(x0), cons(x1, from(from(z0)))) -> c4(A__SEL(mark(x0), a__from(a__from(mark(z0)))), MARK(from(from(z0))))
   A__SEL(s(x0), cons(x1, from(sel(z0, z1)))) -> c4(A__SEL(mark(x0), a__from(a__sel(mark(z0), mark(z1)))), MARK(from(sel(z0, z1))))
   A__SEL(s(x0), cons(x1, from(cons(z0, z1)))) -> c4(A__SEL(mark(x0), a__from(cons(mark(z0), z1))), MARK(from(cons(z0, z1))))
   A__SEL(s(x0), cons(x1, from(s(z0)))) -> c4(A__SEL(mark(x0), a__from(s(mark(z0)))), MARK(from(s(z0))))
   A__SEL(s(x0), cons(x1, from(0))) -> c4(A__SEL(mark(x0), a__from(0)), MARK(from(0)))
   A__SEL(s(from(z0)), cons(x1, from(x2))) -> c4(A__SEL(a__from(mark(z0)), a__from(mark(x2))), MARK(from(x2)))
   A__SEL(s(sel(z0, z1)), cons(x1, from(x2))) -> c4(A__SEL(a__sel(mark(z0), mark(z1)), a__from(mark(x2))), MARK(from(x2)))
   A__SEL(s(s(z0)), cons(x1, from(x2))) -> c4(A__SEL(s(mark(z0)), a__from(mark(x2))), MARK(from(x2)))
   A__SEL(s(0), cons(x1, from(x2))) -> c4(A__SEL(0, a__from(mark(x2))), MARK(from(x2)))
   A__SEL(s(x0), cons(x1, from(x2))) -> c4(MARK(from(x2)))
   A__SEL(s(cons(z0, z1)), cons(x1, from(x2))) -> c4(MARK(from(x2)))
   A__SEL(s(x0), cons(x1, sel(x2, from(z0)))) -> c4(A__SEL(mark(x0), a__sel(mark(x2), a__from(mark(z0)))), MARK(sel(x2, from(z0))))
   A__SEL(s(x0), cons(x1, sel(x2, sel(z0, z1)))) -> c4(A__SEL(mark(x0), a__sel(mark(x2), a__sel(mark(z0), mark(z1)))), MARK(sel(x2, sel(z0, z1))))
   A__SEL(s(x0), cons(x1, sel(x2, cons(z0, z1)))) -> c4(A__SEL(mark(x0), a__sel(mark(x2), cons(mark(z0), z1))), MARK(sel(x2, cons(z0, z1))))
   A__SEL(s(x0), cons(x1, sel(x2, s(z0)))) -> c4(A__SEL(mark(x0), a__sel(mark(x2), s(mark(z0)))), MARK(sel(x2, s(z0))))
   A__SEL(s(x0), cons(x1, sel(x2, 0))) -> c4(A__SEL(mark(x0), a__sel(mark(x2), 0)), MARK(sel(x2, 0)))
   A__SEL(s(x0), cons(x1, sel(from(z0), x3))) -> c4(A__SEL(mark(x0), a__sel(a__from(mark(z0)), mark(x3))), MARK(sel(from(z0), x3)))
   A__SEL(s(x0), cons(x1, sel(sel(z0, z1), x3))) -> c4(A__SEL(mark(x0), a__sel(a__sel(mark(z0), mark(z1)), mark(x3))), MARK(sel(sel(z0, z1), x3)))
   A__SEL(s(x0), cons(x1, sel(cons(z0, z1), x3))) -> c4(A__SEL(mark(x0), a__sel(cons(mark(z0), z1), mark(x3))), MARK(sel(cons(z0, z1), x3)))
   A__SEL(s(x0), cons(x1, sel(s(z0), x3))) -> c4(A__SEL(mark(x0), a__sel(s(mark(z0)), mark(x3))), MARK(sel(s(z0), x3)))
   A__SEL(s(x0), cons(x1, sel(0, x3))) -> c4(A__SEL(mark(x0), a__sel(0, mark(x3))), MARK(sel(0, x3)))
   A__SEL(s(from(z0)), cons(x1, sel(x2, x3))) -> c4(A__SEL(a__from(mark(z0)), a__sel(mark(x2), mark(x3))), MARK(sel(x2, x3)))
   A__SEL(s(sel(z0, z1)), cons(x1, sel(x2, x3))) -> c4(A__SEL(a__sel(mark(z0), mark(z1)), a__sel(mark(x2), mark(x3))), MARK(sel(x2, x3)))
   A__SEL(s(s(z0)), cons(x1, sel(x2, x3))) -> c4(A__SEL(s(mark(z0)), a__sel(mark(x2), mark(x3))), MARK(sel(x2, x3)))
   A__SEL(s(0), cons(x1, sel(x2, x3))) -> c4(A__SEL(0, a__sel(mark(x2), mark(x3))), MARK(sel(x2, x3)))
   A__SEL(s(x0), cons(x1, sel(x2, x3))) -> c4(MARK(sel(x2, x3)))
   A__SEL(s(cons(z0, z1)), cons(x1, sel(x2, x3))) -> c4(MARK(sel(x2, x3)))
   A__SEL(s(x0), cons(x1, cons(from(z0), x3))) -> c4(A__SEL(mark(x0), cons(a__from(mark(z0)), x3)), MARK(cons(from(z0), x3)))
   A__SEL(s(x0), cons(x1, cons(sel(z0, z1), x3))) -> c4(A__SEL(mark(x0), cons(a__sel(mark(z0), mark(z1)), x3)), MARK(cons(sel(z0, z1), x3)))
   A__SEL(s(x0), cons(x1, cons(cons(z0, z1), x3))) -> c4(A__SEL(mark(x0), cons(cons(mark(z0), z1), x3)), MARK(cons(cons(z0, z1), x3)))
   A__SEL(s(x0), cons(x1, cons(s(z0), x3))) -> c4(A__SEL(mark(x0), cons(s(mark(z0)), x3)), MARK(cons(s(z0), x3)))
   A__SEL(s(x0), cons(x1, cons(0, x3))) -> c4(A__SEL(mark(x0), cons(0, x3)), MARK(cons(0, x3)))
   A__SEL(s(from(z0)), cons(x1, cons(x2, x3))) -> c4(A__SEL(a__from(mark(z0)), cons(mark(x2), x3)), MARK(cons(x2, x3)))
   A__SEL(s(sel(z0, z1)), cons(x1, cons(x2, x3))) -> c4(A__SEL(a__sel(mark(z0), mark(z1)), cons(mark(x2), x3)), MARK(cons(x2, x3)))
   A__SEL(s(s(z0)), cons(x1, cons(x2, x3))) -> c4(A__SEL(s(mark(z0)), cons(mark(x2), x3)), MARK(cons(x2, x3)))
   A__SEL(s(0), cons(x1, cons(x2, x3))) -> c4(A__SEL(0, cons(mark(x2), x3)), MARK(cons(x2, x3)))
   A__SEL(s(x0), cons(x1, cons(x2, x3))) -> c4(MARK(cons(x2, x3)))
   A__SEL(s(cons(z0, z1)), cons(x1, cons(x2, x3))) -> c4(MARK(cons(x2, x3)))
   A__SEL(s(from(from(z0))), cons(x1, x2)) -> c4(A__SEL(a__from(a__from(mark(z0))), mark(x2)), MARK(x2))
   A__SEL(s(from(sel(z0, z1))), cons(x1, x2)) -> c4(A__SEL(a__from(a__sel(mark(z0), mark(z1))), mark(x2)), MARK(x2))
   A__SEL(s(from(cons(z0, z1))), cons(x1, x2)) -> c4(A__SEL(a__from(cons(mark(z0), z1)), mark(x2)), MARK(x2))
   A__SEL(s(from(s(z0))), cons(x1, x2)) -> c4(A__SEL(a__from(s(mark(z0))), mark(x2)), MARK(x2))
   A__SEL(s(from(0)), cons(x1, x2)) -> c4(A__SEL(a__from(0), mark(x2)), MARK(x2))
   A__SEL(s(from(x0)), cons(x1, s(z0))) -> c4(MARK(s(z0)))
   A__SEL(s(from(x0)), cons(x1, x2)) -> c4(MARK(x2))
   A__SEL(s(sel(x0, from(z0))), cons(x2, x3)) -> c4(A__SEL(a__sel(mark(x0), a__from(mark(z0))), mark(x3)), MARK(x3))
   A__SEL(s(sel(x0, sel(z0, z1))), cons(x2, x3)) -> c4(A__SEL(a__sel(mark(x0), a__sel(mark(z0), mark(z1))), mark(x3)), MARK(x3))
   A__SEL(s(sel(x0, cons(z0, z1))), cons(x2, x3)) -> c4(A__SEL(a__sel(mark(x0), cons(mark(z0), z1)), mark(x3)), MARK(x3))
   A__SEL(s(sel(x0, s(z0))), cons(x2, x3)) -> c4(A__SEL(a__sel(mark(x0), s(mark(z0))), mark(x3)), MARK(x3))
   A__SEL(s(sel(x0, 0)), cons(x2, x3)) -> c4(A__SEL(a__sel(mark(x0), 0), mark(x3)), MARK(x3))
   A__SEL(s(sel(from(z0), x1)), cons(x2, x3)) -> c4(A__SEL(a__sel(a__from(mark(z0)), mark(x1)), mark(x3)), MARK(x3))
   A__SEL(s(sel(sel(z0, z1), x1)), cons(x2, x3)) -> c4(A__SEL(a__sel(a__sel(mark(z0), mark(z1)), mark(x1)), mark(x3)), MARK(x3))
   A__SEL(s(sel(cons(z0, z1), x1)), cons(x2, x3)) -> c4(A__SEL(a__sel(cons(mark(z0), z1), mark(x1)), mark(x3)), MARK(x3))
   A__SEL(s(sel(s(z0), x1)), cons(x2, x3)) -> c4(A__SEL(a__sel(s(mark(z0)), mark(x1)), mark(x3)), MARK(x3))
   A__SEL(s(sel(0, x1)), cons(x2, x3)) -> c4(A__SEL(a__sel(0, mark(x1)), mark(x3)), MARK(x3))
   A__SEL(s(sel(x0, x1)), cons(x2, s(z0))) -> c4(MARK(s(z0)))
   A__SEL(s(sel(x0, x1)), cons(x2, x3)) -> c4(MARK(x3))
   A__SEL(s(s(from(z0))), cons(x1, x2)) -> c4(A__SEL(s(a__from(mark(z0))), mark(x2)), MARK(x2))
   A__SEL(s(s(sel(z0, z1))), cons(x1, x2)) -> c4(A__SEL(s(a__sel(mark(z0), mark(z1))), mark(x2)), MARK(x2))
   A__SEL(s(s(cons(z0, z1))), cons(x1, x2)) -> c4(A__SEL(s(cons(mark(z0), z1)), mark(x2)), MARK(x2))
   A__SEL(s(s(s(z0))), cons(x1, x2)) -> c4(A__SEL(s(s(mark(z0))), mark(x2)), MARK(x2))
   A__SEL(s(s(0)), cons(x1, x2)) -> c4(A__SEL(s(0), mark(x2)), MARK(x2))
   A__SEL(s(s(x0)), cons(x1, s(z0))) -> c4(MARK(s(z0)))
   A__SEL(s(0), cons(x0, s(z0))) -> c4(MARK(s(z0)))
   MARK(sel(x0, from(x1))) -> c7(A__SEL(mark(x0), cons(mark(mark(x1)), from(s(mark(x1))))), MARK(x0))
   MARK(sel(x0, from(from(z0)))) -> c7(A__SEL(mark(x0), a__from(a__from(mark(z0)))), MARK(x0))
   MARK(sel(x0, from(sel(z0, z1)))) -> c7(A__SEL(mark(x0), a__from(a__sel(mark(z0), mark(z1)))), MARK(x0))
   MARK(sel(x0, from(cons(z0, z1)))) -> c7(A__SEL(mark(x0), a__from(cons(mark(z0), z1))), MARK(x0))
   MARK(sel(x0, from(s(z0)))) -> c7(A__SEL(mark(x0), a__from(s(mark(z0)))), MARK(x0))
   MARK(sel(x0, from(0))) -> c7(A__SEL(mark(x0), a__from(0)), MARK(x0))
   MARK(sel(from(z0), from(x1))) -> c7(A__SEL(a__from(mark(z0)), a__from(mark(x1))), MARK(from(z0)))
   MARK(sel(sel(z0, z1), from(x1))) -> c7(A__SEL(a__sel(mark(z0), mark(z1)), a__from(mark(x1))), MARK(sel(z0, z1)))
   MARK(sel(s(z0), from(x1))) -> c7(A__SEL(s(mark(z0)), a__from(mark(x1))), MARK(s(z0)))
   MARK(sel(x0, from(x1))) -> c7(MARK(x0))
   MARK(sel(cons(z0, z1), from(x1))) -> c7(MARK(cons(z0, z1)))
   MARK(sel(0, from(x1))) -> c7(A__SEL(0, a__from(mark(x1))))
   MARK(sel(x0, sel(x1, from(z0)))) -> c7(A__SEL(mark(x0), a__sel(mark(x1), a__from(mark(z0)))), MARK(x0))
   MARK(sel(x0, sel(x1, sel(z0, z1)))) -> c7(A__SEL(mark(x0), a__sel(mark(x1), a__sel(mark(z0), mark(z1)))), MARK(x0))
   MARK(sel(x0, sel(x1, cons(z0, z1)))) -> c7(A__SEL(mark(x0), a__sel(mark(x1), cons(mark(z0), z1))), MARK(x0))
   MARK(sel(x0, sel(x1, s(z0)))) -> c7(A__SEL(mark(x0), a__sel(mark(x1), s(mark(z0)))), MARK(x0))
   MARK(sel(x0, sel(x1, 0))) -> c7(A__SEL(mark(x0), a__sel(mark(x1), 0)), MARK(x0))
   MARK(sel(x0, sel(from(z0), x2))) -> c7(A__SEL(mark(x0), a__sel(a__from(mark(z0)), mark(x2))), MARK(x0))
   MARK(sel(x0, sel(sel(z0, z1), x2))) -> c7(A__SEL(mark(x0), a__sel(a__sel(mark(z0), mark(z1)), mark(x2))), MARK(x0))
   MARK(sel(x0, sel(cons(z0, z1), x2))) -> c7(A__SEL(mark(x0), a__sel(cons(mark(z0), z1), mark(x2))), MARK(x0))
   MARK(sel(x0, sel(s(z0), x2))) -> c7(A__SEL(mark(x0), a__sel(s(mark(z0)), mark(x2))), MARK(x0))
   MARK(sel(x0, sel(0, x2))) -> c7(A__SEL(mark(x0), a__sel(0, mark(x2))), MARK(x0))
   MARK(sel(from(z0), sel(x1, x2))) -> c7(A__SEL(a__from(mark(z0)), a__sel(mark(x1), mark(x2))), MARK(from(z0)))
   MARK(sel(sel(z0, z1), sel(x1, x2))) -> c7(A__SEL(a__sel(mark(z0), mark(z1)), a__sel(mark(x1), mark(x2))), MARK(sel(z0, z1)))
   MARK(sel(s(z0), sel(x1, x2))) -> c7(A__SEL(s(mark(z0)), a__sel(mark(x1), mark(x2))), MARK(s(z0)))
   MARK(sel(x0, sel(x1, x2))) -> c7(MARK(x0))
   MARK(sel(cons(z0, z1), sel(x1, x2))) -> c7(MARK(cons(z0, z1)))
   MARK(sel(0, sel(x1, x2))) -> c7(A__SEL(0, a__sel(mark(x1), mark(x2))))
   MARK(sel(x0, cons(from(z0), x2))) -> c7(A__SEL(mark(x0), cons(a__from(mark(z0)), x2)), MARK(x0))
   MARK(sel(x0, cons(sel(z0, z1), x2))) -> c7(A__SEL(mark(x0), cons(a__sel(mark(z0), mark(z1)), x2)), MARK(x0))
   MARK(sel(x0, cons(cons(z0, z1), x2))) -> c7(A__SEL(mark(x0), cons(cons(mark(z0), z1), x2)), MARK(x0))
   MARK(sel(x0, cons(s(z0), x2))) -> c7(A__SEL(mark(x0), cons(s(mark(z0)), x2)), MARK(x0))
   MARK(sel(x0, cons(0, x2))) -> c7(A__SEL(mark(x0), cons(0, x2)), MARK(x0))
   MARK(sel(from(z0), cons(x1, x2))) -> c7(A__SEL(a__from(mark(z0)), cons(mark(x1), x2)), MARK(from(z0)))
   MARK(sel(sel(z0, z1), cons(x1, x2))) -> c7(A__SEL(a__sel(mark(z0), mark(z1)), cons(mark(x1), x2)), MARK(sel(z0, z1)))
   MARK(sel(s(z0), cons(x1, x2))) -> c7(A__SEL(s(mark(z0)), cons(mark(x1), x2)), MARK(s(z0)))
   MARK(sel(cons(z0, z1), cons(x1, x2))) -> c7(MARK(cons(z0, z1)))
   MARK(sel(0, cons(x1, x2))) -> c7(A__SEL(0, cons(mark(x1), x2)))
   MARK(sel(from(from(z0)), x1)) -> c7(A__SEL(a__from(a__from(mark(z0))), mark(x1)), MARK(from(from(z0))))
   MARK(sel(from(sel(z0, z1)), x1)) -> c7(A__SEL(a__from(a__sel(mark(z0), mark(z1))), mark(x1)), MARK(from(sel(z0, z1))))
   MARK(sel(from(cons(z0, z1)), x1)) -> c7(A__SEL(a__from(cons(mark(z0), z1)), mark(x1)), MARK(from(cons(z0, z1))))
   MARK(sel(from(s(z0)), x1)) -> c7(A__SEL(a__from(s(mark(z0))), mark(x1)), MARK(from(s(z0))))
   MARK(sel(from(0), x1)) -> c7(A__SEL(a__from(0), mark(x1)), MARK(from(0)))
   MARK(sel(from(x0), x1)) -> c7(MARK(from(x0)))
   MARK(sel(from(x0), s(z0))) -> c7(MARK(from(x0)))
   MARK(sel(from(x0), 0)) -> c7(MARK(from(x0)))
   MARK(sel(sel(x0, from(z0)), x2)) -> c7(A__SEL(a__sel(mark(x0), a__from(mark(z0))), mark(x2)), MARK(sel(x0, from(z0))))
   MARK(sel(sel(x0, sel(z0, z1)), x2)) -> c7(A__SEL(a__sel(mark(x0), a__sel(mark(z0), mark(z1))), mark(x2)), MARK(sel(x0, sel(z0, z1))))
   MARK(sel(sel(x0, cons(z0, z1)), x2)) -> c7(A__SEL(a__sel(mark(x0), cons(mark(z0), z1)), mark(x2)), MARK(sel(x0, cons(z0, z1))))
   MARK(sel(sel(x0, s(z0)), x2)) -> c7(A__SEL(a__sel(mark(x0), s(mark(z0))), mark(x2)), MARK(sel(x0, s(z0))))
   MARK(sel(sel(x0, 0), x2)) -> c7(A__SEL(a__sel(mark(x0), 0), mark(x2)), MARK(sel(x0, 0)))
   MARK(sel(sel(from(z0), x1), x2)) -> c7(A__SEL(a__sel(a__from(mark(z0)), mark(x1)), mark(x2)), MARK(sel(from(z0), x1)))
   MARK(sel(sel(sel(z0, z1), x1), x2)) -> c7(A__SEL(a__sel(a__sel(mark(z0), mark(z1)), mark(x1)), mark(x2)), MARK(sel(sel(z0, z1), x1)))
   MARK(sel(sel(cons(z0, z1), x1), x2)) -> c7(A__SEL(a__sel(cons(mark(z0), z1), mark(x1)), mark(x2)), MARK(sel(cons(z0, z1), x1)))
   MARK(sel(sel(s(z0), x1), x2)) -> c7(A__SEL(a__sel(s(mark(z0)), mark(x1)), mark(x2)), MARK(sel(s(z0), x1)))
   MARK(sel(sel(0, x1), x2)) -> c7(A__SEL(a__sel(0, mark(x1)), mark(x2)), MARK(sel(0, x1)))
   MARK(sel(sel(x0, x1), s(z0))) -> c7(MARK(sel(x0, x1)))
   MARK(sel(sel(x0, x1), 0)) -> c7(MARK(sel(x0, x1)))
   MARK(sel(sel(x0, x1), x2)) -> c7(MARK(sel(x0, x1)))
   MARK(sel(s(from(z0)), x1)) -> c7(A__SEL(s(a__from(mark(z0))), mark(x1)), MARK(s(from(z0))))
   MARK(sel(s(sel(z0, z1)), x1)) -> c7(A__SEL(s(a__sel(mark(z0), mark(z1))), mark(x1)), MARK(s(sel(z0, z1))))
   MARK(sel(s(cons(z0, z1)), x1)) -> c7(A__SEL(s(cons(mark(z0), z1)), mark(x1)), MARK(s(cons(z0, z1))))
   MARK(sel(s(s(z0)), x1)) -> c7(A__SEL(s(s(mark(z0))), mark(x1)), MARK(s(s(z0))))
   MARK(sel(s(0), x1)) -> c7(A__SEL(s(0), mark(x1)), MARK(s(0)))
   MARK(sel(s(x0), x1)) -> c7(MARK(s(x0)))
   MARK(sel(s(x0), s(z0))) -> c7(MARK(s(x0)))
   MARK(sel(s(x0), 0)) -> c7(MARK(s(x0)))
   MARK(sel(x0, from(x1))) -> c8(A__SEL(mark(x0), cons(mark(mark(x1)), from(s(mark(x1))))), MARK(from(x1)))
   MARK(sel(x0, from(from(z0)))) -> c8(A__SEL(mark(x0), a__from(a__from(mark(z0)))), MARK(from(from(z0))))
   MARK(sel(x0, from(sel(z0, z1)))) -> c8(A__SEL(mark(x0), a__from(a__sel(mark(z0), mark(z1)))), MARK(from(sel(z0, z1))))
   MARK(sel(x0, from(cons(z0, z1)))) -> c8(A__SEL(mark(x0), a__from(cons(mark(z0), z1))), MARK(from(cons(z0, z1))))
   MARK(sel(x0, from(s(z0)))) -> c8(A__SEL(mark(x0), a__from(s(mark(z0)))), MARK(from(s(z0))))
   MARK(sel(x0, from(0))) -> c8(A__SEL(mark(x0), a__from(0)), MARK(from(0)))
   MARK(sel(from(z0), from(x1))) -> c8(A__SEL(a__from(mark(z0)), a__from(mark(x1))), MARK(from(x1)))
   MARK(sel(sel(z0, z1), from(x1))) -> c8(A__SEL(a__sel(mark(z0), mark(z1)), a__from(mark(x1))), MARK(from(x1)))
   MARK(sel(s(z0), from(x1))) -> c8(A__SEL(s(mark(z0)), a__from(mark(x1))), MARK(from(x1)))
   MARK(sel(0, from(x1))) -> c8(A__SEL(0, a__from(mark(x1))), MARK(from(x1)))
   MARK(sel(x0, from(x1))) -> c8(MARK(from(x1)))
   MARK(sel(cons(z0, z1), from(x1))) -> c8(MARK(from(x1)))
   MARK(sel(x0, sel(x1, from(z0)))) -> c8(A__SEL(mark(x0), a__sel(mark(x1), a__from(mark(z0)))), MARK(sel(x1, from(z0))))
   MARK(sel(x0, sel(x1, sel(z0, z1)))) -> c8(A__SEL(mark(x0), a__sel(mark(x1), a__sel(mark(z0), mark(z1)))), MARK(sel(x1, sel(z0, z1))))
   MARK(sel(x0, sel(x1, cons(z0, z1)))) -> c8(A__SEL(mark(x0), a__sel(mark(x1), cons(mark(z0), z1))), MARK(sel(x1, cons(z0, z1))))
   MARK(sel(x0, sel(x1, s(z0)))) -> c8(A__SEL(mark(x0), a__sel(mark(x1), s(mark(z0)))), MARK(sel(x1, s(z0))))
   MARK(sel(x0, sel(x1, 0))) -> c8(A__SEL(mark(x0), a__sel(mark(x1), 0)), MARK(sel(x1, 0)))
   MARK(sel(x0, sel(from(z0), x2))) -> c8(A__SEL(mark(x0), a__sel(a__from(mark(z0)), mark(x2))), MARK(sel(from(z0), x2)))
   MARK(sel(x0, sel(sel(z0, z1), x2))) -> c8(A__SEL(mark(x0), a__sel(a__sel(mark(z0), mark(z1)), mark(x2))), MARK(sel(sel(z0, z1), x2)))
   MARK(sel(x0, sel(cons(z0, z1), x2))) -> c8(A__SEL(mark(x0), a__sel(cons(mark(z0), z1), mark(x2))), MARK(sel(cons(z0, z1), x2)))
   MARK(sel(x0, sel(s(z0), x2))) -> c8(A__SEL(mark(x0), a__sel(s(mark(z0)), mark(x2))), MARK(sel(s(z0), x2)))
   MARK(sel(x0, sel(0, x2))) -> c8(A__SEL(mark(x0), a__sel(0, mark(x2))), MARK(sel(0, x2)))
   MARK(sel(from(z0), sel(x1, x2))) -> c8(A__SEL(a__from(mark(z0)), a__sel(mark(x1), mark(x2))), MARK(sel(x1, x2)))
   MARK(sel(sel(z0, z1), sel(x1, x2))) -> c8(A__SEL(a__sel(mark(z0), mark(z1)), a__sel(mark(x1), mark(x2))), MARK(sel(x1, x2)))
   MARK(sel(s(z0), sel(x1, x2))) -> c8(A__SEL(s(mark(z0)), a__sel(mark(x1), mark(x2))), MARK(sel(x1, x2)))
   MARK(sel(0, sel(x1, x2))) -> c8(A__SEL(0, a__sel(mark(x1), mark(x2))), MARK(sel(x1, x2)))
   MARK(sel(x0, sel(x1, x2))) -> c8(MARK(sel(x1, x2)))
   MARK(sel(cons(z0, z1), sel(x1, x2))) -> c8(MARK(sel(x1, x2)))
   MARK(sel(x0, cons(from(z0), x2))) -> c8(A__SEL(mark(x0), cons(a__from(mark(z0)), x2)), MARK(cons(from(z0), x2)))
   MARK(sel(x0, cons(sel(z0, z1), x2))) -> c8(A__SEL(mark(x0), cons(a__sel(mark(z0), mark(z1)), x2)), MARK(cons(sel(z0, z1), x2)))
   MARK(sel(x0, cons(cons(z0, z1), x2))) -> c8(A__SEL(mark(x0), cons(cons(mark(z0), z1), x2)), MARK(cons(cons(z0, z1), x2)))
   MARK(sel(x0, cons(s(z0), x2))) -> c8(A__SEL(mark(x0), cons(s(mark(z0)), x2)), MARK(cons(s(z0), x2)))
   MARK(sel(x0, cons(0, x2))) -> c8(A__SEL(mark(x0), cons(0, x2)), MARK(cons(0, x2)))
   MARK(sel(from(z0), cons(x1, x2))) -> c8(A__SEL(a__from(mark(z0)), cons(mark(x1), x2)), MARK(cons(x1, x2)))
   MARK(sel(sel(z0, z1), cons(x1, x2))) -> c8(A__SEL(a__sel(mark(z0), mark(z1)), cons(mark(x1), x2)), MARK(cons(x1, x2)))
   MARK(sel(s(z0), cons(x1, x2))) -> c8(A__SEL(s(mark(z0)), cons(mark(x1), x2)), MARK(cons(x1, x2)))
   MARK(sel(0, cons(x1, x2))) -> c8(A__SEL(0, cons(mark(x1), x2)), MARK(cons(x1, x2)))
   MARK(sel(x0, cons(x1, x2))) -> c8(MARK(cons(x1, x2)))
   MARK(sel(cons(z0, z1), cons(x1, x2))) -> c8(MARK(cons(x1, x2)))
   MARK(sel(from(from(z0)), x1)) -> c8(A__SEL(a__from(a__from(mark(z0))), mark(x1)), MARK(x1))
   MARK(sel(from(sel(z0, z1)), x1)) -> c8(A__SEL(a__from(a__sel(mark(z0), mark(z1))), mark(x1)), MARK(x1))
   MARK(sel(from(cons(z0, z1)), x1)) -> c8(A__SEL(a__from(cons(mark(z0), z1)), mark(x1)), MARK(x1))
   MARK(sel(from(s(z0)), x1)) -> c8(A__SEL(a__from(s(mark(z0))), mark(x1)), MARK(x1))
   MARK(sel(from(0), x1)) -> c8(A__SEL(a__from(0), mark(x1)), MARK(x1))
   MARK(sel(from(x0), s(z0))) -> c8(MARK(s(z0)))
   MARK(sel(from(x0), x1)) -> c8(MARK(x1))
   MARK(sel(sel(x0, from(z0)), x2)) -> c8(A__SEL(a__sel(mark(x0), a__from(mark(z0))), mark(x2)), MARK(x2))
   MARK(sel(sel(x0, sel(z0, z1)), x2)) -> c8(A__SEL(a__sel(mark(x0), a__sel(mark(z0), mark(z1))), mark(x2)), MARK(x2))
   MARK(sel(sel(x0, cons(z0, z1)), x2)) -> c8(A__SEL(a__sel(mark(x0), cons(mark(z0), z1)), mark(x2)), MARK(x2))
   MARK(sel(sel(x0, s(z0)), x2)) -> c8(A__SEL(a__sel(mark(x0), s(mark(z0))), mark(x2)), MARK(x2))
   MARK(sel(sel(x0, 0), x2)) -> c8(A__SEL(a__sel(mark(x0), 0), mark(x2)), MARK(x2))
   MARK(sel(sel(from(z0), x1), x2)) -> c8(A__SEL(a__sel(a__from(mark(z0)), mark(x1)), mark(x2)), MARK(x2))
   MARK(sel(sel(sel(z0, z1), x1), x2)) -> c8(A__SEL(a__sel(a__sel(mark(z0), mark(z1)), mark(x1)), mark(x2)), MARK(x2))
   MARK(sel(sel(cons(z0, z1), x1), x2)) -> c8(A__SEL(a__sel(cons(mark(z0), z1), mark(x1)), mark(x2)), MARK(x2))
   MARK(sel(sel(s(z0), x1), x2)) -> c8(A__SEL(a__sel(s(mark(z0)), mark(x1)), mark(x2)), MARK(x2))
   MARK(sel(sel(0, x1), x2)) -> c8(A__SEL(a__sel(0, mark(x1)), mark(x2)), MARK(x2))
   MARK(sel(sel(x0, x1), s(z0))) -> c8(MARK(s(z0)))
   MARK(sel(sel(x0, x1), x2)) -> c8(MARK(x2))
   MARK(sel(s(from(z0)), x1)) -> c8(A__SEL(s(a__from(mark(z0))), mark(x1)), MARK(x1))
   MARK(sel(s(sel(z0, z1)), x1)) -> c8(A__SEL(s(a__sel(mark(z0), mark(z1))), mark(x1)), MARK(x1))
   MARK(sel(s(cons(z0, z1)), x1)) -> c8(A__SEL(s(cons(mark(z0), z1)), mark(x1)), MARK(x1))
   MARK(sel(s(s(z0)), x1)) -> c8(A__SEL(s(s(mark(z0))), mark(x1)), MARK(x1))
   MARK(sel(s(0), x1)) -> c8(A__SEL(s(0), mark(x1)), MARK(x1))
   MARK(sel(s(x0), s(z0))) -> c8(MARK(s(z0)))
   MARK(sel(0, s(z0))) -> c8(MARK(s(z0)))
   A__FROM(from(y0)) -> c(MARK(from(y0)))
   A__FROM(cons(y0, y1)) -> c(MARK(cons(y0, y1)))
   A__FROM(s(y0)) -> c(MARK(s(y0)))
   A__FROM(sel(y0, s(y1))) -> c(MARK(sel(y0, s(y1))))
   A__FROM(sel(y0, 0)) -> c(MARK(sel(y0, 0)))
   A__FROM(sel(cons(y0, y1), y2)) -> c(MARK(sel(cons(y0, y1), y2)))
   A__FROM(sel(y0, from(y1))) -> c(MARK(sel(y0, from(y1))))
   A__FROM(sel(y0, from(from(y1)))) -> c(MARK(sel(y0, from(from(y1)))))
   A__FROM(sel(y0, from(sel(y1, y2)))) -> c(MARK(sel(y0, from(sel(y1, y2)))))
   A__FROM(sel(y0, from(cons(y1, y2)))) -> c(MARK(sel(y0, from(cons(y1, y2)))))
   A__FROM(sel(y0, from(s(y1)))) -> c(MARK(sel(y0, from(s(y1)))))
   A__FROM(sel(y0, from(0))) -> c(MARK(sel(y0, from(0))))
   A__FROM(sel(from(y0), from(y1))) -> c(MARK(sel(from(y0), from(y1))))
   A__FROM(sel(sel(y0, y1), from(y2))) -> c(MARK(sel(sel(y0, y1), from(y2))))
   A__FROM(sel(s(y0), from(y1))) -> c(MARK(sel(s(y0), from(y1))))
   A__FROM(sel(cons(y0, y1), from(y2))) -> c(MARK(sel(cons(y0, y1), from(y2))))
   A__FROM(sel(0, from(y0))) -> c(MARK(sel(0, from(y0))))
   A__FROM(sel(y0, sel(y1, from(y2)))) -> c(MARK(sel(y0, sel(y1, from(y2)))))
   A__FROM(sel(y0, sel(y1, sel(y2, y3)))) -> c(MARK(sel(y0, sel(y1, sel(y2, y3)))))
   A__FROM(sel(y0, sel(y1, cons(y2, y3)))) -> c(MARK(sel(y0, sel(y1, cons(y2, y3)))))
   A__FROM(sel(y0, sel(y1, s(y2)))) -> c(MARK(sel(y0, sel(y1, s(y2)))))
   A__FROM(sel(y0, sel(y1, 0))) -> c(MARK(sel(y0, sel(y1, 0))))
   A__FROM(sel(y0, sel(from(y1), y2))) -> c(MARK(sel(y0, sel(from(y1), y2))))
   A__FROM(sel(y0, sel(sel(y1, y2), y3))) -> c(MARK(sel(y0, sel(sel(y1, y2), y3))))
   A__FROM(sel(y0, sel(cons(y1, y2), y3))) -> c(MARK(sel(y0, sel(cons(y1, y2), y3))))
   A__FROM(sel(y0, sel(s(y1), y2))) -> c(MARK(sel(y0, sel(s(y1), y2))))
   A__FROM(sel(y0, sel(0, y1))) -> c(MARK(sel(y0, sel(0, y1))))
   A__FROM(sel(from(y0), sel(y1, y2))) -> c(MARK(sel(from(y0), sel(y1, y2))))
   A__FROM(sel(sel(y0, y1), sel(y2, y3))) -> c(MARK(sel(sel(y0, y1), sel(y2, y3))))
   A__FROM(sel(s(y0), sel(y1, y2))) -> c(MARK(sel(s(y0), sel(y1, y2))))
   A__FROM(sel(y0, sel(y1, y2))) -> c(MARK(sel(y0, sel(y1, y2))))
   A__FROM(sel(cons(y0, y1), sel(y2, y3))) -> c(MARK(sel(cons(y0, y1), sel(y2, y3))))
   A__FROM(sel(0, sel(y0, y1))) -> c(MARK(sel(0, sel(y0, y1))))
   A__FROM(sel(y0, cons(from(y1), y2))) -> c(MARK(sel(y0, cons(from(y1), y2))))
   A__FROM(sel(y0, cons(sel(y1, y2), y3))) -> c(MARK(sel(y0, cons(sel(y1, y2), y3))))
   A__FROM(sel(y0, cons(cons(y1, y2), y3))) -> c(MARK(sel(y0, cons(cons(y1, y2), y3))))
   A__FROM(sel(y0, cons(s(y1), y2))) -> c(MARK(sel(y0, cons(s(y1), y2))))
   A__FROM(sel(y0, cons(0, y1))) -> c(MARK(sel(y0, cons(0, y1))))
   A__FROM(sel(from(y0), cons(y1, y2))) -> c(MARK(sel(from(y0), cons(y1, y2))))
   A__FROM(sel(sel(y0, y1), cons(y2, y3))) -> c(MARK(sel(sel(y0, y1), cons(y2, y3))))
   A__FROM(sel(s(y0), cons(y1, y2))) -> c(MARK(sel(s(y0), cons(y1, y2))))
   A__FROM(sel(cons(y0, y1), cons(y2, y3))) -> c(MARK(sel(cons(y0, y1), cons(y2, y3))))
   A__FROM(sel(0, cons(y0, y1))) -> c(MARK(sel(0, cons(y0, y1))))
   A__FROM(sel(from(from(y0)), y1)) -> c(MARK(sel(from(from(y0)), y1)))
   A__FROM(sel(from(sel(y0, y1)), y2)) -> c(MARK(sel(from(sel(y0, y1)), y2)))
   A__FROM(sel(from(cons(y0, y1)), y2)) -> c(MARK(sel(from(cons(y0, y1)), y2)))
   A__FROM(sel(from(s(y0)), y1)) -> c(MARK(sel(from(s(y0)), y1)))
   A__FROM(sel(from(0), y0)) -> c(MARK(sel(from(0), y0)))
   A__FROM(sel(from(y0), y1)) -> c(MARK(sel(from(y0), y1)))
   A__FROM(sel(from(y0), s(y1))) -> c(MARK(sel(from(y0), s(y1))))
   A__FROM(sel(from(y0), 0)) -> c(MARK(sel(from(y0), 0)))
   A__FROM(sel(sel(y0, from(y1)), y2)) -> c(MARK(sel(sel(y0, from(y1)), y2)))
   A__FROM(sel(sel(y0, sel(y1, y2)), y3)) -> c(MARK(sel(sel(y0, sel(y1, y2)), y3)))
   A__FROM(sel(sel(y0, cons(y1, y2)), y3)) -> c(MARK(sel(sel(y0, cons(y1, y2)), y3)))
   A__FROM(sel(sel(y0, s(y1)), y2)) -> c(MARK(sel(sel(y0, s(y1)), y2)))
   A__FROM(sel(sel(y0, 0), y1)) -> c(MARK(sel(sel(y0, 0), y1)))
   A__FROM(sel(sel(from(y0), y1), y2)) -> c(MARK(sel(sel(from(y0), y1), y2)))
   A__FROM(sel(sel(sel(y0, y1), y2), y3)) -> c(MARK(sel(sel(sel(y0, y1), y2), y3)))
   A__FROM(sel(sel(cons(y0, y1), y2), y3)) -> c(MARK(sel(sel(cons(y0, y1), y2), y3)))
   A__FROM(sel(sel(s(y0), y1), y2)) -> c(MARK(sel(sel(s(y0), y1), y2)))
   A__FROM(sel(sel(0, y0), y1)) -> c(MARK(sel(sel(0, y0), y1)))
   A__FROM(sel(sel(y0, y1), s(y2))) -> c(MARK(sel(sel(y0, y1), s(y2))))
   A__FROM(sel(sel(y0, y1), 0)) -> c(MARK(sel(sel(y0, y1), 0)))
   A__FROM(sel(sel(y0, y1), y2)) -> c(MARK(sel(sel(y0, y1), y2)))
   A__FROM(sel(s(from(y0)), y1)) -> c(MARK(sel(s(from(y0)), y1)))
   A__FROM(sel(s(sel(y0, y1)), y2)) -> c(MARK(sel(s(sel(y0, y1)), y2)))
   A__FROM(sel(s(cons(y0, y1)), y2)) -> c(MARK(sel(s(cons(y0, y1)), y2)))
   A__FROM(sel(s(s(y0)), y1)) -> c(MARK(sel(s(s(y0)), y1)))
   A__FROM(sel(s(0), y0)) -> c(MARK(sel(s(0), y0)))
   A__FROM(sel(s(y0), y1)) -> c(MARK(sel(s(y0), y1)))
   A__FROM(sel(s(y0), s(y1))) -> c(MARK(sel(s(y0), s(y1))))
   A__FROM(sel(s(y0), 0)) -> c(MARK(sel(s(y0), 0)))
   A__FROM(sel(y0, cons(y1, y2))) -> c(MARK(sel(y0, cons(y1, y2))))
   A__FROM(sel(0, s(y0))) -> c(MARK(sel(0, s(y0))))
   MARK(from(from(z0))) -> c6(A__FROM(a__from(mark(z0))), MARK(from(z0)))
   MARK(from(sel(z0, z1))) -> c6(A__FROM(a__sel(mark(z0), mark(z1))), MARK(sel(z0, z1)))
   MARK(from(cons(z0, z1))) -> c6(A__FROM(cons(mark(z0), z1)), MARK(cons(z0, z1)))
   MARK(from(s(z0))) -> c6(A__FROM(s(mark(z0))), MARK(s(z0)))
K tuples:none
Defined Rule Symbols:   a__from_1, a__sel_2, mark_1

Defined Pair Symbols:   A__SEL_2, MARK_1, A__FROM_1

Compound Symbols:   c2_1, c9_1, c10_1, c3_1, c4_1, c7_1, c8_1, c3_2, c4_2, c7_2, c8_2, c_1, c6_2


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

(211) CdtRhsSimplificationProcessorProof (BOTH BOUNDS(ID, ID))
Removed 4 trailing tuple parts
----------------------------------------

(212)
Obligation:
Complexity Dependency Tuples Problem

Rules:
   a__from(z0) -> cons(mark(z0), from(s(z0)))
   a__from(z0) -> from(z0)
   a__sel(0, cons(z0, z1)) -> mark(z0)
   a__sel(s(z0), cons(z1, z2)) -> a__sel(mark(z0), mark(z2))
   a__sel(z0, z1) -> sel(z0, z1)
   mark(from(z0)) -> a__from(mark(z0))
   mark(sel(z0, z1)) -> a__sel(mark(z0), mark(z1))
   mark(cons(z0, z1)) -> cons(mark(z0), z1)
   mark(s(z0)) -> s(mark(z0))
   mark(0) -> 0
Tuples:
   A__SEL(0, cons(z0, z1)) -> c2(MARK(z0))
   MARK(cons(z0, z1)) -> c9(MARK(z0))
   MARK(s(z0)) -> c10(MARK(z0))
   A__SEL(s(x0), cons(x1, s(z0))) -> c3(MARK(x0))
   A__SEL(s(x0), cons(x1, 0)) -> c3(MARK(x0))
   A__SEL(s(cons(z0, z1)), cons(x1, x2)) -> c3(MARK(cons(z0, z1)))
   A__SEL(s(x0), cons(x1, s(z0))) -> c4(MARK(s(z0)))
   A__SEL(s(cons(z0, z1)), cons(x1, x2)) -> c4(MARK(x2))
   MARK(sel(x0, s(z0))) -> c7(MARK(x0))
   MARK(sel(x0, 0)) -> c7(MARK(x0))
   MARK(sel(cons(z0, z1), x1)) -> c7(MARK(cons(z0, z1)))
   MARK(sel(x0, s(z0))) -> c8(MARK(s(z0)))
   MARK(sel(cons(z0, z1), x1)) -> c8(MARK(x1))
   A__SEL(s(x0), cons(x1, from(x2))) -> c3(A__SEL(mark(x0), cons(mark(mark(x2)), from(s(mark(x2))))), MARK(x0))
   A__SEL(s(x0), cons(x1, from(from(z0)))) -> c3(A__SEL(mark(x0), a__from(a__from(mark(z0)))), MARK(x0))
   A__SEL(s(x0), cons(x1, from(sel(z0, z1)))) -> c3(A__SEL(mark(x0), a__from(a__sel(mark(z0), mark(z1)))), MARK(x0))
   A__SEL(s(x0), cons(x1, from(cons(z0, z1)))) -> c3(A__SEL(mark(x0), a__from(cons(mark(z0), z1))), MARK(x0))
   A__SEL(s(x0), cons(x1, from(s(z0)))) -> c3(A__SEL(mark(x0), a__from(s(mark(z0)))), MARK(x0))
   A__SEL(s(x0), cons(x1, from(0))) -> c3(A__SEL(mark(x0), a__from(0)), MARK(x0))
   A__SEL(s(from(z0)), cons(x1, from(x2))) -> c3(A__SEL(a__from(mark(z0)), a__from(mark(x2))), MARK(from(z0)))
   A__SEL(s(sel(z0, z1)), cons(x1, from(x2))) -> c3(A__SEL(a__sel(mark(z0), mark(z1)), a__from(mark(x2))), MARK(sel(z0, z1)))
   A__SEL(s(s(z0)), cons(x1, from(x2))) -> c3(A__SEL(s(mark(z0)), a__from(mark(x2))), MARK(s(z0)))
   A__SEL(s(x0), cons(x1, from(x2))) -> c3(MARK(x0))
   A__SEL(s(cons(z0, z1)), cons(x1, from(x2))) -> c3(MARK(cons(z0, z1)))
   A__SEL(s(0), cons(x1, from(x2))) -> c3(A__SEL(0, a__from(mark(x2))))
   A__SEL(s(x0), cons(x1, sel(x2, from(z0)))) -> c3(A__SEL(mark(x0), a__sel(mark(x2), a__from(mark(z0)))), MARK(x0))
   A__SEL(s(x0), cons(x1, sel(x2, sel(z0, z1)))) -> c3(A__SEL(mark(x0), a__sel(mark(x2), a__sel(mark(z0), mark(z1)))), MARK(x0))
   A__SEL(s(x0), cons(x1, sel(x2, cons(z0, z1)))) -> c3(A__SEL(mark(x0), a__sel(mark(x2), cons(mark(z0), z1))), MARK(x0))
   A__SEL(s(x0), cons(x1, sel(x2, s(z0)))) -> c3(A__SEL(mark(x0), a__sel(mark(x2), s(mark(z0)))), MARK(x0))
   A__SEL(s(x0), cons(x1, sel(x2, 0))) -> c3(A__SEL(mark(x0), a__sel(mark(x2), 0)), MARK(x0))
   A__SEL(s(x0), cons(x1, sel(from(z0), x3))) -> c3(A__SEL(mark(x0), a__sel(a__from(mark(z0)), mark(x3))), MARK(x0))
   A__SEL(s(x0), cons(x1, sel(sel(z0, z1), x3))) -> c3(A__SEL(mark(x0), a__sel(a__sel(mark(z0), mark(z1)), mark(x3))), MARK(x0))
   A__SEL(s(x0), cons(x1, sel(cons(z0, z1), x3))) -> c3(A__SEL(mark(x0), a__sel(cons(mark(z0), z1), mark(x3))), MARK(x0))
   A__SEL(s(x0), cons(x1, sel(s(z0), x3))) -> c3(A__SEL(mark(x0), a__sel(s(mark(z0)), mark(x3))), MARK(x0))
   A__SEL(s(x0), cons(x1, sel(0, x3))) -> c3(A__SEL(mark(x0), a__sel(0, mark(x3))), MARK(x0))
   A__SEL(s(from(z0)), cons(x1, sel(x2, x3))) -> c3(A__SEL(a__from(mark(z0)), a__sel(mark(x2), mark(x3))), MARK(from(z0)))
   A__SEL(s(sel(z0, z1)), cons(x1, sel(x2, x3))) -> c3(A__SEL(a__sel(mark(z0), mark(z1)), a__sel(mark(x2), mark(x3))), MARK(sel(z0, z1)))
   A__SEL(s(s(z0)), cons(x1, sel(x2, x3))) -> c3(A__SEL(s(mark(z0)), a__sel(mark(x2), mark(x3))), MARK(s(z0)))
   A__SEL(s(x0), cons(x1, sel(x2, x3))) -> c3(MARK(x0))
   A__SEL(s(cons(z0, z1)), cons(x1, sel(x2, x3))) -> c3(MARK(cons(z0, z1)))
   A__SEL(s(0), cons(x1, sel(x2, x3))) -> c3(A__SEL(0, a__sel(mark(x2), mark(x3))))
   A__SEL(s(x0), cons(x1, cons(from(z0), x3))) -> c3(A__SEL(mark(x0), cons(a__from(mark(z0)), x3)), MARK(x0))
   A__SEL(s(x0), cons(x1, cons(sel(z0, z1), x3))) -> c3(A__SEL(mark(x0), cons(a__sel(mark(z0), mark(z1)), x3)), MARK(x0))
   A__SEL(s(x0), cons(x1, cons(cons(z0, z1), x3))) -> c3(A__SEL(mark(x0), cons(cons(mark(z0), z1), x3)), MARK(x0))
   A__SEL(s(x0), cons(x1, cons(s(z0), x3))) -> c3(A__SEL(mark(x0), cons(s(mark(z0)), x3)), MARK(x0))
   A__SEL(s(x0), cons(x1, cons(0, x3))) -> c3(A__SEL(mark(x0), cons(0, x3)), MARK(x0))
   A__SEL(s(from(z0)), cons(x1, cons(x2, x3))) -> c3(A__SEL(a__from(mark(z0)), cons(mark(x2), x3)), MARK(from(z0)))
   A__SEL(s(sel(z0, z1)), cons(x1, cons(x2, x3))) -> c3(A__SEL(a__sel(mark(z0), mark(z1)), cons(mark(x2), x3)), MARK(sel(z0, z1)))
   A__SEL(s(s(z0)), cons(x1, cons(x2, x3))) -> c3(A__SEL(s(mark(z0)), cons(mark(x2), x3)), MARK(s(z0)))
   A__SEL(s(cons(z0, z1)), cons(x1, cons(x2, x3))) -> c3(MARK(cons(z0, z1)))
   A__SEL(s(0), cons(x1, cons(x2, x3))) -> c3(A__SEL(0, cons(mark(x2), x3)))
   A__SEL(s(from(from(z0))), cons(x1, x2)) -> c3(A__SEL(a__from(a__from(mark(z0))), mark(x2)), MARK(from(from(z0))))
   A__SEL(s(from(sel(z0, z1))), cons(x1, x2)) -> c3(A__SEL(a__from(a__sel(mark(z0), mark(z1))), mark(x2)), MARK(from(sel(z0, z1))))
   A__SEL(s(from(cons(z0, z1))), cons(x1, x2)) -> c3(A__SEL(a__from(cons(mark(z0), z1)), mark(x2)), MARK(from(cons(z0, z1))))
   A__SEL(s(from(s(z0))), cons(x1, x2)) -> c3(A__SEL(a__from(s(mark(z0))), mark(x2)), MARK(from(s(z0))))
   A__SEL(s(from(x0)), cons(x1, x2)) -> c3(MARK(from(x0)))
   A__SEL(s(from(x0)), cons(x1, s(z0))) -> c3(MARK(from(x0)))
   A__SEL(s(from(x0)), cons(x1, 0)) -> c3(MARK(from(x0)))
   A__SEL(s(sel(x0, from(z0))), cons(x2, x3)) -> c3(A__SEL(a__sel(mark(x0), a__from(mark(z0))), mark(x3)), MARK(sel(x0, from(z0))))
   A__SEL(s(sel(x0, sel(z0, z1))), cons(x2, x3)) -> c3(A__SEL(a__sel(mark(x0), a__sel(mark(z0), mark(z1))), mark(x3)), MARK(sel(x0, sel(z0, z1))))
   A__SEL(s(sel(x0, cons(z0, z1))), cons(x2, x3)) -> c3(A__SEL(a__sel(mark(x0), cons(mark(z0), z1)), mark(x3)), MARK(sel(x0, cons(z0, z1))))
   A__SEL(s(sel(x0, s(z0))), cons(x2, x3)) -> c3(A__SEL(a__sel(mark(x0), s(mark(z0))), mark(x3)), MARK(sel(x0, s(z0))))
   A__SEL(s(sel(x0, 0)), cons(x2, x3)) -> c3(A__SEL(a__sel(mark(x0), 0), mark(x3)), MARK(sel(x0, 0)))
   A__SEL(s(sel(from(z0), x1)), cons(x2, x3)) -> c3(A__SEL(a__sel(a__from(mark(z0)), mark(x1)), mark(x3)), MARK(sel(from(z0), x1)))
   A__SEL(s(sel(sel(z0, z1), x1)), cons(x2, x3)) -> c3(A__SEL(a__sel(a__sel(mark(z0), mark(z1)), mark(x1)), mark(x3)), MARK(sel(sel(z0, z1), x1)))
   A__SEL(s(sel(cons(z0, z1), x1)), cons(x2, x3)) -> c3(A__SEL(a__sel(cons(mark(z0), z1), mark(x1)), mark(x3)), MARK(sel(cons(z0, z1), x1)))
   A__SEL(s(sel(s(z0), x1)), cons(x2, x3)) -> c3(A__SEL(a__sel(s(mark(z0)), mark(x1)), mark(x3)), MARK(sel(s(z0), x1)))
   A__SEL(s(sel(0, x1)), cons(x2, x3)) -> c3(A__SEL(a__sel(0, mark(x1)), mark(x3)), MARK(sel(0, x1)))
   A__SEL(s(sel(x0, x1)), cons(x2, s(z0))) -> c3(MARK(sel(x0, x1)))
   A__SEL(s(sel(x0, x1)), cons(x2, 0)) -> c3(MARK(sel(x0, x1)))
   A__SEL(s(sel(x0, x1)), cons(x2, x3)) -> c3(MARK(sel(x0, x1)))
   A__SEL(s(s(from(z0))), cons(x1, x2)) -> c3(A__SEL(s(a__from(mark(z0))), mark(x2)), MARK(s(from(z0))))
   A__SEL(s(s(sel(z0, z1))), cons(x1, x2)) -> c3(A__SEL(s(a__sel(mark(z0), mark(z1))), mark(x2)), MARK(s(sel(z0, z1))))
   A__SEL(s(s(cons(z0, z1))), cons(x1, x2)) -> c3(A__SEL(s(cons(mark(z0), z1)), mark(x2)), MARK(s(cons(z0, z1))))
   A__SEL(s(s(s(z0))), cons(x1, x2)) -> c3(A__SEL(s(s(mark(z0))), mark(x2)), MARK(s(s(z0))))
   A__SEL(s(s(0)), cons(x1, x2)) -> c3(A__SEL(s(0), mark(x2)), MARK(s(0)))
   A__SEL(s(s(x0)), cons(x1, x2)) -> c3(MARK(s(x0)))
   A__SEL(s(s(x0)), cons(x1, s(z0))) -> c3(MARK(s(x0)))
   A__SEL(s(s(x0)), cons(x1, 0)) -> c3(MARK(s(x0)))
   A__SEL(s(x0), cons(x1, from(x2))) -> c4(A__SEL(mark(x0), cons(mark(mark(x2)), from(s(mark(x2))))), MARK(from(x2)))
   A__SEL(s(x0), cons(x1, from(from(z0)))) -> c4(A__SEL(mark(x0), a__from(a__from(mark(z0)))), MARK(from(from(z0))))
   A__SEL(s(x0), cons(x1, from(sel(z0, z1)))) -> c4(A__SEL(mark(x0), a__from(a__sel(mark(z0), mark(z1)))), MARK(from(sel(z0, z1))))
   A__SEL(s(x0), cons(x1, from(cons(z0, z1)))) -> c4(A__SEL(mark(x0), a__from(cons(mark(z0), z1))), MARK(from(cons(z0, z1))))
   A__SEL(s(x0), cons(x1, from(s(z0)))) -> c4(A__SEL(mark(x0), a__from(s(mark(z0)))), MARK(from(s(z0))))
   A__SEL(s(from(z0)), cons(x1, from(x2))) -> c4(A__SEL(a__from(mark(z0)), a__from(mark(x2))), MARK(from(x2)))
   A__SEL(s(sel(z0, z1)), cons(x1, from(x2))) -> c4(A__SEL(a__sel(mark(z0), mark(z1)), a__from(mark(x2))), MARK(from(x2)))
   A__SEL(s(s(z0)), cons(x1, from(x2))) -> c4(A__SEL(s(mark(z0)), a__from(mark(x2))), MARK(from(x2)))
   A__SEL(s(0), cons(x1, from(x2))) -> c4(A__SEL(0, a__from(mark(x2))), MARK(from(x2)))
   A__SEL(s(x0), cons(x1, from(x2))) -> c4(MARK(from(x2)))
   A__SEL(s(cons(z0, z1)), cons(x1, from(x2))) -> c4(MARK(from(x2)))
   A__SEL(s(x0), cons(x1, sel(x2, from(z0)))) -> c4(A__SEL(mark(x0), a__sel(mark(x2), a__from(mark(z0)))), MARK(sel(x2, from(z0))))
   A__SEL(s(x0), cons(x1, sel(x2, sel(z0, z1)))) -> c4(A__SEL(mark(x0), a__sel(mark(x2), a__sel(mark(z0), mark(z1)))), MARK(sel(x2, sel(z0, z1))))
   A__SEL(s(x0), cons(x1, sel(x2, cons(z0, z1)))) -> c4(A__SEL(mark(x0), a__sel(mark(x2), cons(mark(z0), z1))), MARK(sel(x2, cons(z0, z1))))
   A__SEL(s(x0), cons(x1, sel(x2, s(z0)))) -> c4(A__SEL(mark(x0), a__sel(mark(x2), s(mark(z0)))), MARK(sel(x2, s(z0))))
   A__SEL(s(x0), cons(x1, sel(x2, 0))) -> c4(A__SEL(mark(x0), a__sel(mark(x2), 0)), MARK(sel(x2, 0)))
   A__SEL(s(x0), cons(x1, sel(from(z0), x3))) -> c4(A__SEL(mark(x0), a__sel(a__from(mark(z0)), mark(x3))), MARK(sel(from(z0), x3)))
   A__SEL(s(x0), cons(x1, sel(sel(z0, z1), x3))) -> c4(A__SEL(mark(x0), a__sel(a__sel(mark(z0), mark(z1)), mark(x3))), MARK(sel(sel(z0, z1), x3)))
   A__SEL(s(x0), cons(x1, sel(cons(z0, z1), x3))) -> c4(A__SEL(mark(x0), a__sel(cons(mark(z0), z1), mark(x3))), MARK(sel(cons(z0, z1), x3)))
   A__SEL(s(x0), cons(x1, sel(s(z0), x3))) -> c4(A__SEL(mark(x0), a__sel(s(mark(z0)), mark(x3))), MARK(sel(s(z0), x3)))
   A__SEL(s(x0), cons(x1, sel(0, x3))) -> c4(A__SEL(mark(x0), a__sel(0, mark(x3))), MARK(sel(0, x3)))
   A__SEL(s(from(z0)), cons(x1, sel(x2, x3))) -> c4(A__SEL(a__from(mark(z0)), a__sel(mark(x2), mark(x3))), MARK(sel(x2, x3)))
   A__SEL(s(sel(z0, z1)), cons(x1, sel(x2, x3))) -> c4(A__SEL(a__sel(mark(z0), mark(z1)), a__sel(mark(x2), mark(x3))), MARK(sel(x2, x3)))
   A__SEL(s(s(z0)), cons(x1, sel(x2, x3))) -> c4(A__SEL(s(mark(z0)), a__sel(mark(x2), mark(x3))), MARK(sel(x2, x3)))
   A__SEL(s(0), cons(x1, sel(x2, x3))) -> c4(A__SEL(0, a__sel(mark(x2), mark(x3))), MARK(sel(x2, x3)))
   A__SEL(s(x0), cons(x1, sel(x2, x3))) -> c4(MARK(sel(x2, x3)))
   A__SEL(s(cons(z0, z1)), cons(x1, sel(x2, x3))) -> c4(MARK(sel(x2, x3)))
   A__SEL(s(x0), cons(x1, cons(from(z0), x3))) -> c4(A__SEL(mark(x0), cons(a__from(mark(z0)), x3)), MARK(cons(from(z0), x3)))
   A__SEL(s(x0), cons(x1, cons(sel(z0, z1), x3))) -> c4(A__SEL(mark(x0), cons(a__sel(mark(z0), mark(z1)), x3)), MARK(cons(sel(z0, z1), x3)))
   A__SEL(s(x0), cons(x1, cons(cons(z0, z1), x3))) -> c4(A__SEL(mark(x0), cons(cons(mark(z0), z1), x3)), MARK(cons(cons(z0, z1), x3)))
   A__SEL(s(x0), cons(x1, cons(s(z0), x3))) -> c4(A__SEL(mark(x0), cons(s(mark(z0)), x3)), MARK(cons(s(z0), x3)))
   A__SEL(s(x0), cons(x1, cons(0, x3))) -> c4(A__SEL(mark(x0), cons(0, x3)), MARK(cons(0, x3)))
   A__SEL(s(from(z0)), cons(x1, cons(x2, x3))) -> c4(A__SEL(a__from(mark(z0)), cons(mark(x2), x3)), MARK(cons(x2, x3)))
   A__SEL(s(sel(z0, z1)), cons(x1, cons(x2, x3))) -> c4(A__SEL(a__sel(mark(z0), mark(z1)), cons(mark(x2), x3)), MARK(cons(x2, x3)))
   A__SEL(s(s(z0)), cons(x1, cons(x2, x3))) -> c4(A__SEL(s(mark(z0)), cons(mark(x2), x3)), MARK(cons(x2, x3)))
   A__SEL(s(0), cons(x1, cons(x2, x3))) -> c4(A__SEL(0, cons(mark(x2), x3)), MARK(cons(x2, x3)))
   A__SEL(s(x0), cons(x1, cons(x2, x3))) -> c4(MARK(cons(x2, x3)))
   A__SEL(s(cons(z0, z1)), cons(x1, cons(x2, x3))) -> c4(MARK(cons(x2, x3)))
   A__SEL(s(from(from(z0))), cons(x1, x2)) -> c4(A__SEL(a__from(a__from(mark(z0))), mark(x2)), MARK(x2))
   A__SEL(s(from(sel(z0, z1))), cons(x1, x2)) -> c4(A__SEL(a__from(a__sel(mark(z0), mark(z1))), mark(x2)), MARK(x2))
   A__SEL(s(from(cons(z0, z1))), cons(x1, x2)) -> c4(A__SEL(a__from(cons(mark(z0), z1)), mark(x2)), MARK(x2))
   A__SEL(s(from(s(z0))), cons(x1, x2)) -> c4(A__SEL(a__from(s(mark(z0))), mark(x2)), MARK(x2))
   A__SEL(s(from(0)), cons(x1, x2)) -> c4(A__SEL(a__from(0), mark(x2)), MARK(x2))
   A__SEL(s(from(x0)), cons(x1, s(z0))) -> c4(MARK(s(z0)))
   A__SEL(s(from(x0)), cons(x1, x2)) -> c4(MARK(x2))
   A__SEL(s(sel(x0, from(z0))), cons(x2, x3)) -> c4(A__SEL(a__sel(mark(x0), a__from(mark(z0))), mark(x3)), MARK(x3))
   A__SEL(s(sel(x0, sel(z0, z1))), cons(x2, x3)) -> c4(A__SEL(a__sel(mark(x0), a__sel(mark(z0), mark(z1))), mark(x3)), MARK(x3))
   A__SEL(s(sel(x0, cons(z0, z1))), cons(x2, x3)) -> c4(A__SEL(a__sel(mark(x0), cons(mark(z0), z1)), mark(x3)), MARK(x3))
   A__SEL(s(sel(x0, s(z0))), cons(x2, x3)) -> c4(A__SEL(a__sel(mark(x0), s(mark(z0))), mark(x3)), MARK(x3))
   A__SEL(s(sel(x0, 0)), cons(x2, x3)) -> c4(A__SEL(a__sel(mark(x0), 0), mark(x3)), MARK(x3))
   A__SEL(s(sel(from(z0), x1)), cons(x2, x3)) -> c4(A__SEL(a__sel(a__from(mark(z0)), mark(x1)), mark(x3)), MARK(x3))
   A__SEL(s(sel(sel(z0, z1), x1)), cons(x2, x3)) -> c4(A__SEL(a__sel(a__sel(mark(z0), mark(z1)), mark(x1)), mark(x3)), MARK(x3))
   A__SEL(s(sel(cons(z0, z1), x1)), cons(x2, x3)) -> c4(A__SEL(a__sel(cons(mark(z0), z1), mark(x1)), mark(x3)), MARK(x3))
   A__SEL(s(sel(s(z0), x1)), cons(x2, x3)) -> c4(A__SEL(a__sel(s(mark(z0)), mark(x1)), mark(x3)), MARK(x3))
   A__SEL(s(sel(0, x1)), cons(x2, x3)) -> c4(A__SEL(a__sel(0, mark(x1)), mark(x3)), MARK(x3))
   A__SEL(s(sel(x0, x1)), cons(x2, s(z0))) -> c4(MARK(s(z0)))
   A__SEL(s(sel(x0, x1)), cons(x2, x3)) -> c4(MARK(x3))
   A__SEL(s(s(from(z0))), cons(x1, x2)) -> c4(A__SEL(s(a__from(mark(z0))), mark(x2)), MARK(x2))
   A__SEL(s(s(sel(z0, z1))), cons(x1, x2)) -> c4(A__SEL(s(a__sel(mark(z0), mark(z1))), mark(x2)), MARK(x2))
   A__SEL(s(s(cons(z0, z1))), cons(x1, x2)) -> c4(A__SEL(s(cons(mark(z0), z1)), mark(x2)), MARK(x2))
   A__SEL(s(s(s(z0))), cons(x1, x2)) -> c4(A__SEL(s(s(mark(z0))), mark(x2)), MARK(x2))
   A__SEL(s(s(0)), cons(x1, x2)) -> c4(A__SEL(s(0), mark(x2)), MARK(x2))
   A__SEL(s(s(x0)), cons(x1, s(z0))) -> c4(MARK(s(z0)))
   A__SEL(s(0), cons(x0, s(z0))) -> c4(MARK(s(z0)))
   MARK(sel(x0, from(x1))) -> c7(A__SEL(mark(x0), cons(mark(mark(x1)), from(s(mark(x1))))), MARK(x0))
   MARK(sel(x0, from(from(z0)))) -> c7(A__SEL(mark(x0), a__from(a__from(mark(z0)))), MARK(x0))
   MARK(sel(x0, from(sel(z0, z1)))) -> c7(A__SEL(mark(x0), a__from(a__sel(mark(z0), mark(z1)))), MARK(x0))
   MARK(sel(x0, from(cons(z0, z1)))) -> c7(A__SEL(mark(x0), a__from(cons(mark(z0), z1))), MARK(x0))
   MARK(sel(x0, from(s(z0)))) -> c7(A__SEL(mark(x0), a__from(s(mark(z0)))), MARK(x0))
   MARK(sel(x0, from(0))) -> c7(A__SEL(mark(x0), a__from(0)), MARK(x0))
   MARK(sel(from(z0), from(x1))) -> c7(A__SEL(a__from(mark(z0)), a__from(mark(x1))), MARK(from(z0)))
   MARK(sel(sel(z0, z1), from(x1))) -> c7(A__SEL(a__sel(mark(z0), mark(z1)), a__from(mark(x1))), MARK(sel(z0, z1)))
   MARK(sel(s(z0), from(x1))) -> c7(A__SEL(s(mark(z0)), a__from(mark(x1))), MARK(s(z0)))
   MARK(sel(x0, from(x1))) -> c7(MARK(x0))
   MARK(sel(cons(z0, z1), from(x1))) -> c7(MARK(cons(z0, z1)))
   MARK(sel(0, from(x1))) -> c7(A__SEL(0, a__from(mark(x1))))
   MARK(sel(x0, sel(x1, from(z0)))) -> c7(A__SEL(mark(x0), a__sel(mark(x1), a__from(mark(z0)))), MARK(x0))
   MARK(sel(x0, sel(x1, sel(z0, z1)))) -> c7(A__SEL(mark(x0), a__sel(mark(x1), a__sel(mark(z0), mark(z1)))), MARK(x0))
   MARK(sel(x0, sel(x1, cons(z0, z1)))) -> c7(A__SEL(mark(x0), a__sel(mark(x1), cons(mark(z0), z1))), MARK(x0))
   MARK(sel(x0, sel(x1, s(z0)))) -> c7(A__SEL(mark(x0), a__sel(mark(x1), s(mark(z0)))), MARK(x0))
   MARK(sel(x0, sel(x1, 0))) -> c7(A__SEL(mark(x0), a__sel(mark(x1), 0)), MARK(x0))
   MARK(sel(x0, sel(from(z0), x2))) -> c7(A__SEL(mark(x0), a__sel(a__from(mark(z0)), mark(x2))), MARK(x0))
   MARK(sel(x0, sel(sel(z0, z1), x2))) -> c7(A__SEL(mark(x0), a__sel(a__sel(mark(z0), mark(z1)), mark(x2))), MARK(x0))
   MARK(sel(x0, sel(cons(z0, z1), x2))) -> c7(A__SEL(mark(x0), a__sel(cons(mark(z0), z1), mark(x2))), MARK(x0))
   MARK(sel(x0, sel(s(z0), x2))) -> c7(A__SEL(mark(x0), a__sel(s(mark(z0)), mark(x2))), MARK(x0))
   MARK(sel(x0, sel(0, x2))) -> c7(A__SEL(mark(x0), a__sel(0, mark(x2))), MARK(x0))
   MARK(sel(from(z0), sel(x1, x2))) -> c7(A__SEL(a__from(mark(z0)), a__sel(mark(x1), mark(x2))), MARK(from(z0)))
   MARK(sel(sel(z0, z1), sel(x1, x2))) -> c7(A__SEL(a__sel(mark(z0), mark(z1)), a__sel(mark(x1), mark(x2))), MARK(sel(z0, z1)))
   MARK(sel(s(z0), sel(x1, x2))) -> c7(A__SEL(s(mark(z0)), a__sel(mark(x1), mark(x2))), MARK(s(z0)))
   MARK(sel(x0, sel(x1, x2))) -> c7(MARK(x0))
   MARK(sel(cons(z0, z1), sel(x1, x2))) -> c7(MARK(cons(z0, z1)))
   MARK(sel(0, sel(x1, x2))) -> c7(A__SEL(0, a__sel(mark(x1), mark(x2))))
   MARK(sel(x0, cons(from(z0), x2))) -> c7(A__SEL(mark(x0), cons(a__from(mark(z0)), x2)), MARK(x0))
   MARK(sel(x0, cons(sel(z0, z1), x2))) -> c7(A__SEL(mark(x0), cons(a__sel(mark(z0), mark(z1)), x2)), MARK(x0))
   MARK(sel(x0, cons(cons(z0, z1), x2))) -> c7(A__SEL(mark(x0), cons(cons(mark(z0), z1), x2)), MARK(x0))
   MARK(sel(x0, cons(s(z0), x2))) -> c7(A__SEL(mark(x0), cons(s(mark(z0)), x2)), MARK(x0))
   MARK(sel(x0, cons(0, x2))) -> c7(A__SEL(mark(x0), cons(0, x2)), MARK(x0))
   MARK(sel(from(z0), cons(x1, x2))) -> c7(A__SEL(a__from(mark(z0)), cons(mark(x1), x2)), MARK(from(z0)))
   MARK(sel(sel(z0, z1), cons(x1, x2))) -> c7(A__SEL(a__sel(mark(z0), mark(z1)), cons(mark(x1), x2)), MARK(sel(z0, z1)))
   MARK(sel(s(z0), cons(x1, x2))) -> c7(A__SEL(s(mark(z0)), cons(mark(x1), x2)), MARK(s(z0)))
   MARK(sel(cons(z0, z1), cons(x1, x2))) -> c7(MARK(cons(z0, z1)))
   MARK(sel(0, cons(x1, x2))) -> c7(A__SEL(0, cons(mark(x1), x2)))
   MARK(sel(from(from(z0)), x1)) -> c7(A__SEL(a__from(a__from(mark(z0))), mark(x1)), MARK(from(from(z0))))
   MARK(sel(from(sel(z0, z1)), x1)) -> c7(A__SEL(a__from(a__sel(mark(z0), mark(z1))), mark(x1)), MARK(from(sel(z0, z1))))
   MARK(sel(from(cons(z0, z1)), x1)) -> c7(A__SEL(a__from(cons(mark(z0), z1)), mark(x1)), MARK(from(cons(z0, z1))))
   MARK(sel(from(s(z0)), x1)) -> c7(A__SEL(a__from(s(mark(z0))), mark(x1)), MARK(from(s(z0))))
   MARK(sel(from(x0), x1)) -> c7(MARK(from(x0)))
   MARK(sel(from(x0), s(z0))) -> c7(MARK(from(x0)))
   MARK(sel(from(x0), 0)) -> c7(MARK(from(x0)))
   MARK(sel(sel(x0, from(z0)), x2)) -> c7(A__SEL(a__sel(mark(x0), a__from(mark(z0))), mark(x2)), MARK(sel(x0, from(z0))))
   MARK(sel(sel(x0, sel(z0, z1)), x2)) -> c7(A__SEL(a__sel(mark(x0), a__sel(mark(z0), mark(z1))), mark(x2)), MARK(sel(x0, sel(z0, z1))))
   MARK(sel(sel(x0, cons(z0, z1)), x2)) -> c7(A__SEL(a__sel(mark(x0), cons(mark(z0), z1)), mark(x2)), MARK(sel(x0, cons(z0, z1))))
   MARK(sel(sel(x0, s(z0)), x2)) -> c7(A__SEL(a__sel(mark(x0), s(mark(z0))), mark(x2)), MARK(sel(x0, s(z0))))
   MARK(sel(sel(x0, 0), x2)) -> c7(A__SEL(a__sel(mark(x0), 0), mark(x2)), MARK(sel(x0, 0)))
   MARK(sel(sel(from(z0), x1), x2)) -> c7(A__SEL(a__sel(a__from(mark(z0)), mark(x1)), mark(x2)), MARK(sel(from(z0), x1)))
   MARK(sel(sel(sel(z0, z1), x1), x2)) -> c7(A__SEL(a__sel(a__sel(mark(z0), mark(z1)), mark(x1)), mark(x2)), MARK(sel(sel(z0, z1), x1)))
   MARK(sel(sel(cons(z0, z1), x1), x2)) -> c7(A__SEL(a__sel(cons(mark(z0), z1), mark(x1)), mark(x2)), MARK(sel(cons(z0, z1), x1)))
   MARK(sel(sel(s(z0), x1), x2)) -> c7(A__SEL(a__sel(s(mark(z0)), mark(x1)), mark(x2)), MARK(sel(s(z0), x1)))
   MARK(sel(sel(0, x1), x2)) -> c7(A__SEL(a__sel(0, mark(x1)), mark(x2)), MARK(sel(0, x1)))
   MARK(sel(sel(x0, x1), s(z0))) -> c7(MARK(sel(x0, x1)))
   MARK(sel(sel(x0, x1), 0)) -> c7(MARK(sel(x0, x1)))
   MARK(sel(sel(x0, x1), x2)) -> c7(MARK(sel(x0, x1)))
   MARK(sel(s(from(z0)), x1)) -> c7(A__SEL(s(a__from(mark(z0))), mark(x1)), MARK(s(from(z0))))
   MARK(sel(s(sel(z0, z1)), x1)) -> c7(A__SEL(s(a__sel(mark(z0), mark(z1))), mark(x1)), MARK(s(sel(z0, z1))))
   MARK(sel(s(cons(z0, z1)), x1)) -> c7(A__SEL(s(cons(mark(z0), z1)), mark(x1)), MARK(s(cons(z0, z1))))
   MARK(sel(s(s(z0)), x1)) -> c7(A__SEL(s(s(mark(z0))), mark(x1)), MARK(s(s(z0))))
   MARK(sel(s(0), x1)) -> c7(A__SEL(s(0), mark(x1)), MARK(s(0)))
   MARK(sel(s(x0), x1)) -> c7(MARK(s(x0)))
   MARK(sel(s(x0), s(z0))) -> c7(MARK(s(x0)))
   MARK(sel(s(x0), 0)) -> c7(MARK(s(x0)))
   MARK(sel(x0, from(x1))) -> c8(A__SEL(mark(x0), cons(mark(mark(x1)), from(s(mark(x1))))), MARK(from(x1)))
   MARK(sel(x0, from(from(z0)))) -> c8(A__SEL(mark(x0), a__from(a__from(mark(z0)))), MARK(from(from(z0))))
   MARK(sel(x0, from(sel(z0, z1)))) -> c8(A__SEL(mark(x0), a__from(a__sel(mark(z0), mark(z1)))), MARK(from(sel(z0, z1))))
   MARK(sel(x0, from(cons(z0, z1)))) -> c8(A__SEL(mark(x0), a__from(cons(mark(z0), z1))), MARK(from(cons(z0, z1))))
   MARK(sel(x0, from(s(z0)))) -> c8(A__SEL(mark(x0), a__from(s(mark(z0)))), MARK(from(s(z0))))
   MARK(sel(from(z0), from(x1))) -> c8(A__SEL(a__from(mark(z0)), a__from(mark(x1))), MARK(from(x1)))
   MARK(sel(sel(z0, z1), from(x1))) -> c8(A__SEL(a__sel(mark(z0), mark(z1)), a__from(mark(x1))), MARK(from(x1)))
   MARK(sel(s(z0), from(x1))) -> c8(A__SEL(s(mark(z0)), a__from(mark(x1))), MARK(from(x1)))
   MARK(sel(0, from(x1))) -> c8(A__SEL(0, a__from(mark(x1))), MARK(from(x1)))
   MARK(sel(x0, from(x1))) -> c8(MARK(from(x1)))
   MARK(sel(cons(z0, z1), from(x1))) -> c8(MARK(from(x1)))
   MARK(sel(x0, sel(x1, from(z0)))) -> c8(A__SEL(mark(x0), a__sel(mark(x1), a__from(mark(z0)))), MARK(sel(x1, from(z0))))
   MARK(sel(x0, sel(x1, sel(z0, z1)))) -> c8(A__SEL(mark(x0), a__sel(mark(x1), a__sel(mark(z0), mark(z1)))), MARK(sel(x1, sel(z0, z1))))
   MARK(sel(x0, sel(x1, cons(z0, z1)))) -> c8(A__SEL(mark(x0), a__sel(mark(x1), cons(mark(z0), z1))), MARK(sel(x1, cons(z0, z1))))
   MARK(sel(x0, sel(x1, s(z0)))) -> c8(A__SEL(mark(x0), a__sel(mark(x1), s(mark(z0)))), MARK(sel(x1, s(z0))))
   MARK(sel(x0, sel(x1, 0))) -> c8(A__SEL(mark(x0), a__sel(mark(x1), 0)), MARK(sel(x1, 0)))
   MARK(sel(x0, sel(from(z0), x2))) -> c8(A__SEL(mark(x0), a__sel(a__from(mark(z0)), mark(x2))), MARK(sel(from(z0), x2)))
   MARK(sel(x0, sel(sel(z0, z1), x2))) -> c8(A__SEL(mark(x0), a__sel(a__sel(mark(z0), mark(z1)), mark(x2))), MARK(sel(sel(z0, z1), x2)))
   MARK(sel(x0, sel(cons(z0, z1), x2))) -> c8(A__SEL(mark(x0), a__sel(cons(mark(z0), z1), mark(x2))), MARK(sel(cons(z0, z1), x2)))
   MARK(sel(x0, sel(s(z0), x2))) -> c8(A__SEL(mark(x0), a__sel(s(mark(z0)), mark(x2))), MARK(sel(s(z0), x2)))
   MARK(sel(x0, sel(0, x2))) -> c8(A__SEL(mark(x0), a__sel(0, mark(x2))), MARK(sel(0, x2)))
   MARK(sel(from(z0), sel(x1, x2))) -> c8(A__SEL(a__from(mark(z0)), a__sel(mark(x1), mark(x2))), MARK(sel(x1, x2)))
   MARK(sel(sel(z0, z1), sel(x1, x2))) -> c8(A__SEL(a__sel(mark(z0), mark(z1)), a__sel(mark(x1), mark(x2))), MARK(sel(x1, x2)))
   MARK(sel(s(z0), sel(x1, x2))) -> c8(A__SEL(s(mark(z0)), a__sel(mark(x1), mark(x2))), MARK(sel(x1, x2)))
   MARK(sel(0, sel(x1, x2))) -> c8(A__SEL(0, a__sel(mark(x1), mark(x2))), MARK(sel(x1, x2)))
   MARK(sel(x0, sel(x1, x2))) -> c8(MARK(sel(x1, x2)))
   MARK(sel(cons(z0, z1), sel(x1, x2))) -> c8(MARK(sel(x1, x2)))
   MARK(sel(x0, cons(from(z0), x2))) -> c8(A__SEL(mark(x0), cons(a__from(mark(z0)), x2)), MARK(cons(from(z0), x2)))
   MARK(sel(x0, cons(sel(z0, z1), x2))) -> c8(A__SEL(mark(x0), cons(a__sel(mark(z0), mark(z1)), x2)), MARK(cons(sel(z0, z1), x2)))
   MARK(sel(x0, cons(cons(z0, z1), x2))) -> c8(A__SEL(mark(x0), cons(cons(mark(z0), z1), x2)), MARK(cons(cons(z0, z1), x2)))
   MARK(sel(x0, cons(s(z0), x2))) -> c8(A__SEL(mark(x0), cons(s(mark(z0)), x2)), MARK(cons(s(z0), x2)))
   MARK(sel(x0, cons(0, x2))) -> c8(A__SEL(mark(x0), cons(0, x2)), MARK(cons(0, x2)))
   MARK(sel(from(z0), cons(x1, x2))) -> c8(A__SEL(a__from(mark(z0)), cons(mark(x1), x2)), MARK(cons(x1, x2)))
   MARK(sel(sel(z0, z1), cons(x1, x2))) -> c8(A__SEL(a__sel(mark(z0), mark(z1)), cons(mark(x1), x2)), MARK(cons(x1, x2)))
   MARK(sel(s(z0), cons(x1, x2))) -> c8(A__SEL(s(mark(z0)), cons(mark(x1), x2)), MARK(cons(x1, x2)))
   MARK(sel(0, cons(x1, x2))) -> c8(A__SEL(0, cons(mark(x1), x2)), MARK(cons(x1, x2)))
   MARK(sel(x0, cons(x1, x2))) -> c8(MARK(cons(x1, x2)))
   MARK(sel(cons(z0, z1), cons(x1, x2))) -> c8(MARK(cons(x1, x2)))
   MARK(sel(from(from(z0)), x1)) -> c8(A__SEL(a__from(a__from(mark(z0))), mark(x1)), MARK(x1))
   MARK(sel(from(sel(z0, z1)), x1)) -> c8(A__SEL(a__from(a__sel(mark(z0), mark(z1))), mark(x1)), MARK(x1))
   MARK(sel(from(cons(z0, z1)), x1)) -> c8(A__SEL(a__from(cons(mark(z0), z1)), mark(x1)), MARK(x1))
   MARK(sel(from(s(z0)), x1)) -> c8(A__SEL(a__from(s(mark(z0))), mark(x1)), MARK(x1))
   MARK(sel(from(0), x1)) -> c8(A__SEL(a__from(0), mark(x1)), MARK(x1))
   MARK(sel(from(x0), s(z0))) -> c8(MARK(s(z0)))
   MARK(sel(from(x0), x1)) -> c8(MARK(x1))
   MARK(sel(sel(x0, from(z0)), x2)) -> c8(A__SEL(a__sel(mark(x0), a__from(mark(z0))), mark(x2)), MARK(x2))
   MARK(sel(sel(x0, sel(z0, z1)), x2)) -> c8(A__SEL(a__sel(mark(x0), a__sel(mark(z0), mark(z1))), mark(x2)), MARK(x2))
   MARK(sel(sel(x0, cons(z0, z1)), x2)) -> c8(A__SEL(a__sel(mark(x0), cons(mark(z0), z1)), mark(x2)), MARK(x2))
   MARK(sel(sel(x0, s(z0)), x2)) -> c8(A__SEL(a__sel(mark(x0), s(mark(z0))), mark(x2)), MARK(x2))
   MARK(sel(sel(x0, 0), x2)) -> c8(A__SEL(a__sel(mark(x0), 0), mark(x2)), MARK(x2))
   MARK(sel(sel(from(z0), x1), x2)) -> c8(A__SEL(a__sel(a__from(mark(z0)), mark(x1)), mark(x2)), MARK(x2))
   MARK(sel(sel(sel(z0, z1), x1), x2)) -> c8(A__SEL(a__sel(a__sel(mark(z0), mark(z1)), mark(x1)), mark(x2)), MARK(x2))
   MARK(sel(sel(cons(z0, z1), x1), x2)) -> c8(A__SEL(a__sel(cons(mark(z0), z1), mark(x1)), mark(x2)), MARK(x2))
   MARK(sel(sel(s(z0), x1), x2)) -> c8(A__SEL(a__sel(s(mark(z0)), mark(x1)), mark(x2)), MARK(x2))
   MARK(sel(sel(0, x1), x2)) -> c8(A__SEL(a__sel(0, mark(x1)), mark(x2)), MARK(x2))
   MARK(sel(sel(x0, x1), s(z0))) -> c8(MARK(s(z0)))
   MARK(sel(sel(x0, x1), x2)) -> c8(MARK(x2))
   MARK(sel(s(from(z0)), x1)) -> c8(A__SEL(s(a__from(mark(z0))), mark(x1)), MARK(x1))
   MARK(sel(s(sel(z0, z1)), x1)) -> c8(A__SEL(s(a__sel(mark(z0), mark(z1))), mark(x1)), MARK(x1))
   MARK(sel(s(cons(z0, z1)), x1)) -> c8(A__SEL(s(cons(mark(z0), z1)), mark(x1)), MARK(x1))
   MARK(sel(s(s(z0)), x1)) -> c8(A__SEL(s(s(mark(z0))), mark(x1)), MARK(x1))
   MARK(sel(s(0), x1)) -> c8(A__SEL(s(0), mark(x1)), MARK(x1))
   MARK(sel(s(x0), s(z0))) -> c8(MARK(s(z0)))
   MARK(sel(0, s(z0))) -> c8(MARK(s(z0)))
   A__FROM(from(y0)) -> c(MARK(from(y0)))
   A__FROM(cons(y0, y1)) -> c(MARK(cons(y0, y1)))
   A__FROM(s(y0)) -> c(MARK(s(y0)))
   A__FROM(sel(y0, s(y1))) -> c(MARK(sel(y0, s(y1))))
   A__FROM(sel(y0, 0)) -> c(MARK(sel(y0, 0)))
   A__FROM(sel(cons(y0, y1), y2)) -> c(MARK(sel(cons(y0, y1), y2)))
   A__FROM(sel(y0, from(y1))) -> c(MARK(sel(y0, from(y1))))
   A__FROM(sel(y0, from(from(y1)))) -> c(MARK(sel(y0, from(from(y1)))))
   A__FROM(sel(y0, from(sel(y1, y2)))) -> c(MARK(sel(y0, from(sel(y1, y2)))))
   A__FROM(sel(y0, from(cons(y1, y2)))) -> c(MARK(sel(y0, from(cons(y1, y2)))))
   A__FROM(sel(y0, from(s(y1)))) -> c(MARK(sel(y0, from(s(y1)))))
   A__FROM(sel(y0, from(0))) -> c(MARK(sel(y0, from(0))))
   A__FROM(sel(from(y0), from(y1))) -> c(MARK(sel(from(y0), from(y1))))
   A__FROM(sel(sel(y0, y1), from(y2))) -> c(MARK(sel(sel(y0, y1), from(y2))))
   A__FROM(sel(s(y0), from(y1))) -> c(MARK(sel(s(y0), from(y1))))
   A__FROM(sel(cons(y0, y1), from(y2))) -> c(MARK(sel(cons(y0, y1), from(y2))))
   A__FROM(sel(0, from(y0))) -> c(MARK(sel(0, from(y0))))
   A__FROM(sel(y0, sel(y1, from(y2)))) -> c(MARK(sel(y0, sel(y1, from(y2)))))
   A__FROM(sel(y0, sel(y1, sel(y2, y3)))) -> c(MARK(sel(y0, sel(y1, sel(y2, y3)))))
   A__FROM(sel(y0, sel(y1, cons(y2, y3)))) -> c(MARK(sel(y0, sel(y1, cons(y2, y3)))))
   A__FROM(sel(y0, sel(y1, s(y2)))) -> c(MARK(sel(y0, sel(y1, s(y2)))))
   A__FROM(sel(y0, sel(y1, 0))) -> c(MARK(sel(y0, sel(y1, 0))))
   A__FROM(sel(y0, sel(from(y1), y2))) -> c(MARK(sel(y0, sel(from(y1), y2))))
   A__FROM(sel(y0, sel(sel(y1, y2), y3))) -> c(MARK(sel(y0, sel(sel(y1, y2), y3))))
   A__FROM(sel(y0, sel(cons(y1, y2), y3))) -> c(MARK(sel(y0, sel(cons(y1, y2), y3))))
   A__FROM(sel(y0, sel(s(y1), y2))) -> c(MARK(sel(y0, sel(s(y1), y2))))
   A__FROM(sel(y0, sel(0, y1))) -> c(MARK(sel(y0, sel(0, y1))))
   A__FROM(sel(from(y0), sel(y1, y2))) -> c(MARK(sel(from(y0), sel(y1, y2))))
   A__FROM(sel(sel(y0, y1), sel(y2, y3))) -> c(MARK(sel(sel(y0, y1), sel(y2, y3))))
   A__FROM(sel(s(y0), sel(y1, y2))) -> c(MARK(sel(s(y0), sel(y1, y2))))
   A__FROM(sel(y0, sel(y1, y2))) -> c(MARK(sel(y0, sel(y1, y2))))
   A__FROM(sel(cons(y0, y1), sel(y2, y3))) -> c(MARK(sel(cons(y0, y1), sel(y2, y3))))
   A__FROM(sel(0, sel(y0, y1))) -> c(MARK(sel(0, sel(y0, y1))))
   A__FROM(sel(y0, cons(from(y1), y2))) -> c(MARK(sel(y0, cons(from(y1), y2))))
   A__FROM(sel(y0, cons(sel(y1, y2), y3))) -> c(MARK(sel(y0, cons(sel(y1, y2), y3))))
   A__FROM(sel(y0, cons(cons(y1, y2), y3))) -> c(MARK(sel(y0, cons(cons(y1, y2), y3))))
   A__FROM(sel(y0, cons(s(y1), y2))) -> c(MARK(sel(y0, cons(s(y1), y2))))
   A__FROM(sel(y0, cons(0, y1))) -> c(MARK(sel(y0, cons(0, y1))))
   A__FROM(sel(from(y0), cons(y1, y2))) -> c(MARK(sel(from(y0), cons(y1, y2))))
   A__FROM(sel(sel(y0, y1), cons(y2, y3))) -> c(MARK(sel(sel(y0, y1), cons(y2, y3))))
   A__FROM(sel(s(y0), cons(y1, y2))) -> c(MARK(sel(s(y0), cons(y1, y2))))
   A__FROM(sel(cons(y0, y1), cons(y2, y3))) -> c(MARK(sel(cons(y0, y1), cons(y2, y3))))
   A__FROM(sel(0, cons(y0, y1))) -> c(MARK(sel(0, cons(y0, y1))))
   A__FROM(sel(from(from(y0)), y1)) -> c(MARK(sel(from(from(y0)), y1)))
   A__FROM(sel(from(sel(y0, y1)), y2)) -> c(MARK(sel(from(sel(y0, y1)), y2)))
   A__FROM(sel(from(cons(y0, y1)), y2)) -> c(MARK(sel(from(cons(y0, y1)), y2)))
   A__FROM(sel(from(s(y0)), y1)) -> c(MARK(sel(from(s(y0)), y1)))
   A__FROM(sel(from(0), y0)) -> c(MARK(sel(from(0), y0)))
   A__FROM(sel(from(y0), y1)) -> c(MARK(sel(from(y0), y1)))
   A__FROM(sel(from(y0), s(y1))) -> c(MARK(sel(from(y0), s(y1))))
   A__FROM(sel(from(y0), 0)) -> c(MARK(sel(from(y0), 0)))
   A__FROM(sel(sel(y0, from(y1)), y2)) -> c(MARK(sel(sel(y0, from(y1)), y2)))
   A__FROM(sel(sel(y0, sel(y1, y2)), y3)) -> c(MARK(sel(sel(y0, sel(y1, y2)), y3)))
   A__FROM(sel(sel(y0, cons(y1, y2)), y3)) -> c(MARK(sel(sel(y0, cons(y1, y2)), y3)))
   A__FROM(sel(sel(y0, s(y1)), y2)) -> c(MARK(sel(sel(y0, s(y1)), y2)))
   A__FROM(sel(sel(y0, 0), y1)) -> c(MARK(sel(sel(y0, 0), y1)))
   A__FROM(sel(sel(from(y0), y1), y2)) -> c(MARK(sel(sel(from(y0), y1), y2)))
   A__FROM(sel(sel(sel(y0, y1), y2), y3)) -> c(MARK(sel(sel(sel(y0, y1), y2), y3)))
   A__FROM(sel(sel(cons(y0, y1), y2), y3)) -> c(MARK(sel(sel(cons(y0, y1), y2), y3)))
   A__FROM(sel(sel(s(y0), y1), y2)) -> c(MARK(sel(sel(s(y0), y1), y2)))
   A__FROM(sel(sel(0, y0), y1)) -> c(MARK(sel(sel(0, y0), y1)))
   A__FROM(sel(sel(y0, y1), s(y2))) -> c(MARK(sel(sel(y0, y1), s(y2))))
   A__FROM(sel(sel(y0, y1), 0)) -> c(MARK(sel(sel(y0, y1), 0)))
   A__FROM(sel(sel(y0, y1), y2)) -> c(MARK(sel(sel(y0, y1), y2)))
   A__FROM(sel(s(from(y0)), y1)) -> c(MARK(sel(s(from(y0)), y1)))
   A__FROM(sel(s(sel(y0, y1)), y2)) -> c(MARK(sel(s(sel(y0, y1)), y2)))
   A__FROM(sel(s(cons(y0, y1)), y2)) -> c(MARK(sel(s(cons(y0, y1)), y2)))
   A__FROM(sel(s(s(y0)), y1)) -> c(MARK(sel(s(s(y0)), y1)))
   A__FROM(sel(s(0), y0)) -> c(MARK(sel(s(0), y0)))
   A__FROM(sel(s(y0), y1)) -> c(MARK(sel(s(y0), y1)))
   A__FROM(sel(s(y0), s(y1))) -> c(MARK(sel(s(y0), s(y1))))
   A__FROM(sel(s(y0), 0)) -> c(MARK(sel(s(y0), 0)))
   A__FROM(sel(y0, cons(y1, y2))) -> c(MARK(sel(y0, cons(y1, y2))))
   A__FROM(sel(0, s(y0))) -> c(MARK(sel(0, s(y0))))
   MARK(from(from(z0))) -> c6(A__FROM(a__from(mark(z0))), MARK(from(z0)))
   MARK(from(sel(z0, z1))) -> c6(A__FROM(a__sel(mark(z0), mark(z1))), MARK(sel(z0, z1)))
   MARK(from(cons(z0, z1))) -> c6(A__FROM(cons(mark(z0), z1)), MARK(cons(z0, z1)))
   MARK(from(s(z0))) -> c6(A__FROM(s(mark(z0))), MARK(s(z0)))
   A__SEL(s(from(0)), cons(x1, x2)) -> c3(A__SEL(a__from(0), mark(x2)))
   A__SEL(s(x0), cons(x1, from(0))) -> c4(A__SEL(mark(x0), a__from(0)))
   MARK(sel(from(0), x1)) -> c7(A__SEL(a__from(0), mark(x1)))
   MARK(sel(x0, from(0))) -> c8(A__SEL(mark(x0), a__from(0)))
S tuples:
   A__SEL(0, cons(z0, z1)) -> c2(MARK(z0))
   MARK(cons(z0, z1)) -> c9(MARK(z0))
   MARK(s(z0)) -> c10(MARK(z0))
   A__SEL(s(x0), cons(x1, s(z0))) -> c3(MARK(x0))
   A__SEL(s(x0), cons(x1, 0)) -> c3(MARK(x0))
   A__SEL(s(cons(z0, z1)), cons(x1, x2)) -> c3(MARK(cons(z0, z1)))
   A__SEL(s(x0), cons(x1, s(z0))) -> c4(MARK(s(z0)))
   A__SEL(s(cons(z0, z1)), cons(x1, x2)) -> c4(MARK(x2))
   MARK(sel(x0, s(z0))) -> c7(MARK(x0))
   MARK(sel(x0, 0)) -> c7(MARK(x0))
   MARK(sel(cons(z0, z1), x1)) -> c7(MARK(cons(z0, z1)))
   MARK(sel(x0, s(z0))) -> c8(MARK(s(z0)))
   MARK(sel(cons(z0, z1), x1)) -> c8(MARK(x1))
   A__SEL(s(x0), cons(x1, from(x2))) -> c3(A__SEL(mark(x0), cons(mark(mark(x2)), from(s(mark(x2))))), MARK(x0))
   A__SEL(s(x0), cons(x1, from(from(z0)))) -> c3(A__SEL(mark(x0), a__from(a__from(mark(z0)))), MARK(x0))
   A__SEL(s(x0), cons(x1, from(sel(z0, z1)))) -> c3(A__SEL(mark(x0), a__from(a__sel(mark(z0), mark(z1)))), MARK(x0))
   A__SEL(s(x0), cons(x1, from(cons(z0, z1)))) -> c3(A__SEL(mark(x0), a__from(cons(mark(z0), z1))), MARK(x0))
   A__SEL(s(x0), cons(x1, from(s(z0)))) -> c3(A__SEL(mark(x0), a__from(s(mark(z0)))), MARK(x0))
   A__SEL(s(x0), cons(x1, from(0))) -> c3(A__SEL(mark(x0), a__from(0)), MARK(x0))
   A__SEL(s(from(z0)), cons(x1, from(x2))) -> c3(A__SEL(a__from(mark(z0)), a__from(mark(x2))), MARK(from(z0)))
   A__SEL(s(sel(z0, z1)), cons(x1, from(x2))) -> c3(A__SEL(a__sel(mark(z0), mark(z1)), a__from(mark(x2))), MARK(sel(z0, z1)))
   A__SEL(s(s(z0)), cons(x1, from(x2))) -> c3(A__SEL(s(mark(z0)), a__from(mark(x2))), MARK(s(z0)))
   A__SEL(s(x0), cons(x1, from(x2))) -> c3(MARK(x0))
   A__SEL(s(cons(z0, z1)), cons(x1, from(x2))) -> c3(MARK(cons(z0, z1)))
   A__SEL(s(0), cons(x1, from(x2))) -> c3(A__SEL(0, a__from(mark(x2))))
   A__SEL(s(x0), cons(x1, sel(x2, from(z0)))) -> c3(A__SEL(mark(x0), a__sel(mark(x2), a__from(mark(z0)))), MARK(x0))
   A__SEL(s(x0), cons(x1, sel(x2, sel(z0, z1)))) -> c3(A__SEL(mark(x0), a__sel(mark(x2), a__sel(mark(z0), mark(z1)))), MARK(x0))
   A__SEL(s(x0), cons(x1, sel(x2, cons(z0, z1)))) -> c3(A__SEL(mark(x0), a__sel(mark(x2), cons(mark(z0), z1))), MARK(x0))
   A__SEL(s(x0), cons(x1, sel(x2, s(z0)))) -> c3(A__SEL(mark(x0), a__sel(mark(x2), s(mark(z0)))), MARK(x0))
   A__SEL(s(x0), cons(x1, sel(x2, 0))) -> c3(A__SEL(mark(x0), a__sel(mark(x2), 0)), MARK(x0))
   A__SEL(s(x0), cons(x1, sel(from(z0), x3))) -> c3(A__SEL(mark(x0), a__sel(a__from(mark(z0)), mark(x3))), MARK(x0))
   A__SEL(s(x0), cons(x1, sel(sel(z0, z1), x3))) -> c3(A__SEL(mark(x0), a__sel(a__sel(mark(z0), mark(z1)), mark(x3))), MARK(x0))
   A__SEL(s(x0), cons(x1, sel(cons(z0, z1), x3))) -> c3(A__SEL(mark(x0), a__sel(cons(mark(z0), z1), mark(x3))), MARK(x0))
   A__SEL(s(x0), cons(x1, sel(s(z0), x3))) -> c3(A__SEL(mark(x0), a__sel(s(mark(z0)), mark(x3))), MARK(x0))
   A__SEL(s(x0), cons(x1, sel(0, x3))) -> c3(A__SEL(mark(x0), a__sel(0, mark(x3))), MARK(x0))
   A__SEL(s(from(z0)), cons(x1, sel(x2, x3))) -> c3(A__SEL(a__from(mark(z0)), a__sel(mark(x2), mark(x3))), MARK(from(z0)))
   A__SEL(s(sel(z0, z1)), cons(x1, sel(x2, x3))) -> c3(A__SEL(a__sel(mark(z0), mark(z1)), a__sel(mark(x2), mark(x3))), MARK(sel(z0, z1)))
   A__SEL(s(s(z0)), cons(x1, sel(x2, x3))) -> c3(A__SEL(s(mark(z0)), a__sel(mark(x2), mark(x3))), MARK(s(z0)))
   A__SEL(s(x0), cons(x1, sel(x2, x3))) -> c3(MARK(x0))
   A__SEL(s(cons(z0, z1)), cons(x1, sel(x2, x3))) -> c3(MARK(cons(z0, z1)))
   A__SEL(s(0), cons(x1, sel(x2, x3))) -> c3(A__SEL(0, a__sel(mark(x2), mark(x3))))
   A__SEL(s(x0), cons(x1, cons(from(z0), x3))) -> c3(A__SEL(mark(x0), cons(a__from(mark(z0)), x3)), MARK(x0))
   A__SEL(s(x0), cons(x1, cons(sel(z0, z1), x3))) -> c3(A__SEL(mark(x0), cons(a__sel(mark(z0), mark(z1)), x3)), MARK(x0))
   A__SEL(s(x0), cons(x1, cons(cons(z0, z1), x3))) -> c3(A__SEL(mark(x0), cons(cons(mark(z0), z1), x3)), MARK(x0))
   A__SEL(s(x0), cons(x1, cons(s(z0), x3))) -> c3(A__SEL(mark(x0), cons(s(mark(z0)), x3)), MARK(x0))
   A__SEL(s(x0), cons(x1, cons(0, x3))) -> c3(A__SEL(mark(x0), cons(0, x3)), MARK(x0))
   A__SEL(s(from(z0)), cons(x1, cons(x2, x3))) -> c3(A__SEL(a__from(mark(z0)), cons(mark(x2), x3)), MARK(from(z0)))
   A__SEL(s(sel(z0, z1)), cons(x1, cons(x2, x3))) -> c3(A__SEL(a__sel(mark(z0), mark(z1)), cons(mark(x2), x3)), MARK(sel(z0, z1)))
   A__SEL(s(s(z0)), cons(x1, cons(x2, x3))) -> c3(A__SEL(s(mark(z0)), cons(mark(x2), x3)), MARK(s(z0)))
   A__SEL(s(cons(z0, z1)), cons(x1, cons(x2, x3))) -> c3(MARK(cons(z0, z1)))
   A__SEL(s(0), cons(x1, cons(x2, x3))) -> c3(A__SEL(0, cons(mark(x2), x3)))
   A__SEL(s(from(from(z0))), cons(x1, x2)) -> c3(A__SEL(a__from(a__from(mark(z0))), mark(x2)), MARK(from(from(z0))))
   A__SEL(s(from(sel(z0, z1))), cons(x1, x2)) -> c3(A__SEL(a__from(a__sel(mark(z0), mark(z1))), mark(x2)), MARK(from(sel(z0, z1))))
   A__SEL(s(from(cons(z0, z1))), cons(x1, x2)) -> c3(A__SEL(a__from(cons(mark(z0), z1)), mark(x2)), MARK(from(cons(z0, z1))))
   A__SEL(s(from(s(z0))), cons(x1, x2)) -> c3(A__SEL(a__from(s(mark(z0))), mark(x2)), MARK(from(s(z0))))
   A__SEL(s(from(x0)), cons(x1, x2)) -> c3(MARK(from(x0)))
   A__SEL(s(from(x0)), cons(x1, s(z0))) -> c3(MARK(from(x0)))
   A__SEL(s(from(x0)), cons(x1, 0)) -> c3(MARK(from(x0)))
   A__SEL(s(sel(x0, from(z0))), cons(x2, x3)) -> c3(A__SEL(a__sel(mark(x0), a__from(mark(z0))), mark(x3)), MARK(sel(x0, from(z0))))
   A__SEL(s(sel(x0, sel(z0, z1))), cons(x2, x3)) -> c3(A__SEL(a__sel(mark(x0), a__sel(mark(z0), mark(z1))), mark(x3)), MARK(sel(x0, sel(z0, z1))))
   A__SEL(s(sel(x0, cons(z0, z1))), cons(x2, x3)) -> c3(A__SEL(a__sel(mark(x0), cons(mark(z0), z1)), mark(x3)), MARK(sel(x0, cons(z0, z1))))
   A__SEL(s(sel(x0, s(z0))), cons(x2, x3)) -> c3(A__SEL(a__sel(mark(x0), s(mark(z0))), mark(x3)), MARK(sel(x0, s(z0))))
   A__SEL(s(sel(x0, 0)), cons(x2, x3)) -> c3(A__SEL(a__sel(mark(x0), 0), mark(x3)), MARK(sel(x0, 0)))
   A__SEL(s(sel(from(z0), x1)), cons(x2, x3)) -> c3(A__SEL(a__sel(a__from(mark(z0)), mark(x1)), mark(x3)), MARK(sel(from(z0), x1)))
   A__SEL(s(sel(sel(z0, z1), x1)), cons(x2, x3)) -> c3(A__SEL(a__sel(a__sel(mark(z0), mark(z1)), mark(x1)), mark(x3)), MARK(sel(sel(z0, z1), x1)))
   A__SEL(s(sel(cons(z0, z1), x1)), cons(x2, x3)) -> c3(A__SEL(a__sel(cons(mark(z0), z1), mark(x1)), mark(x3)), MARK(sel(cons(z0, z1), x1)))
   A__SEL(s(sel(s(z0), x1)), cons(x2, x3)) -> c3(A__SEL(a__sel(s(mark(z0)), mark(x1)), mark(x3)), MARK(sel(s(z0), x1)))
   A__SEL(s(sel(0, x1)), cons(x2, x3)) -> c3(A__SEL(a__sel(0, mark(x1)), mark(x3)), MARK(sel(0, x1)))
   A__SEL(s(sel(x0, x1)), cons(x2, s(z0))) -> c3(MARK(sel(x0, x1)))
   A__SEL(s(sel(x0, x1)), cons(x2, 0)) -> c3(MARK(sel(x0, x1)))
   A__SEL(s(sel(x0, x1)), cons(x2, x3)) -> c3(MARK(sel(x0, x1)))
   A__SEL(s(s(from(z0))), cons(x1, x2)) -> c3(A__SEL(s(a__from(mark(z0))), mark(x2)), MARK(s(from(z0))))
   A__SEL(s(s(sel(z0, z1))), cons(x1, x2)) -> c3(A__SEL(s(a__sel(mark(z0), mark(z1))), mark(x2)), MARK(s(sel(z0, z1))))
   A__SEL(s(s(cons(z0, z1))), cons(x1, x2)) -> c3(A__SEL(s(cons(mark(z0), z1)), mark(x2)), MARK(s(cons(z0, z1))))
   A__SEL(s(s(s(z0))), cons(x1, x2)) -> c3(A__SEL(s(s(mark(z0))), mark(x2)), MARK(s(s(z0))))
   A__SEL(s(s(0)), cons(x1, x2)) -> c3(A__SEL(s(0), mark(x2)), MARK(s(0)))
   A__SEL(s(s(x0)), cons(x1, x2)) -> c3(MARK(s(x0)))
   A__SEL(s(s(x0)), cons(x1, s(z0))) -> c3(MARK(s(x0)))
   A__SEL(s(s(x0)), cons(x1, 0)) -> c3(MARK(s(x0)))
   A__SEL(s(x0), cons(x1, from(x2))) -> c4(A__SEL(mark(x0), cons(mark(mark(x2)), from(s(mark(x2))))), MARK(from(x2)))
   A__SEL(s(x0), cons(x1, from(from(z0)))) -> c4(A__SEL(mark(x0), a__from(a__from(mark(z0)))), MARK(from(from(z0))))
   A__SEL(s(x0), cons(x1, from(sel(z0, z1)))) -> c4(A__SEL(mark(x0), a__from(a__sel(mark(z0), mark(z1)))), MARK(from(sel(z0, z1))))
   A__SEL(s(x0), cons(x1, from(cons(z0, z1)))) -> c4(A__SEL(mark(x0), a__from(cons(mark(z0), z1))), MARK(from(cons(z0, z1))))
   A__SEL(s(x0), cons(x1, from(s(z0)))) -> c4(A__SEL(mark(x0), a__from(s(mark(z0)))), MARK(from(s(z0))))
   A__SEL(s(from(z0)), cons(x1, from(x2))) -> c4(A__SEL(a__from(mark(z0)), a__from(mark(x2))), MARK(from(x2)))
   A__SEL(s(sel(z0, z1)), cons(x1, from(x2))) -> c4(A__SEL(a__sel(mark(z0), mark(z1)), a__from(mark(x2))), MARK(from(x2)))
   A__SEL(s(s(z0)), cons(x1, from(x2))) -> c4(A__SEL(s(mark(z0)), a__from(mark(x2))), MARK(from(x2)))
   A__SEL(s(0), cons(x1, from(x2))) -> c4(A__SEL(0, a__from(mark(x2))), MARK(from(x2)))
   A__SEL(s(x0), cons(x1, from(x2))) -> c4(MARK(from(x2)))
   A__SEL(s(cons(z0, z1)), cons(x1, from(x2))) -> c4(MARK(from(x2)))
   A__SEL(s(x0), cons(x1, sel(x2, from(z0)))) -> c4(A__SEL(mark(x0), a__sel(mark(x2), a__from(mark(z0)))), MARK(sel(x2, from(z0))))
   A__SEL(s(x0), cons(x1, sel(x2, sel(z0, z1)))) -> c4(A__SEL(mark(x0), a__sel(mark(x2), a__sel(mark(z0), mark(z1)))), MARK(sel(x2, sel(z0, z1))))
   A__SEL(s(x0), cons(x1, sel(x2, cons(z0, z1)))) -> c4(A__SEL(mark(x0), a__sel(mark(x2), cons(mark(z0), z1))), MARK(sel(x2, cons(z0, z1))))
   A__SEL(s(x0), cons(x1, sel(x2, s(z0)))) -> c4(A__SEL(mark(x0), a__sel(mark(x2), s(mark(z0)))), MARK(sel(x2, s(z0))))
   A__SEL(s(x0), cons(x1, sel(x2, 0))) -> c4(A__SEL(mark(x0), a__sel(mark(x2), 0)), MARK(sel(x2, 0)))
   A__SEL(s(x0), cons(x1, sel(from(z0), x3))) -> c4(A__SEL(mark(x0), a__sel(a__from(mark(z0)), mark(x3))), MARK(sel(from(z0), x3)))
   A__SEL(s(x0), cons(x1, sel(sel(z0, z1), x3))) -> c4(A__SEL(mark(x0), a__sel(a__sel(mark(z0), mark(z1)), mark(x3))), MARK(sel(sel(z0, z1), x3)))
   A__SEL(s(x0), cons(x1, sel(cons(z0, z1), x3))) -> c4(A__SEL(mark(x0), a__sel(cons(mark(z0), z1), mark(x3))), MARK(sel(cons(z0, z1), x3)))
   A__SEL(s(x0), cons(x1, sel(s(z0), x3))) -> c4(A__SEL(mark(x0), a__sel(s(mark(z0)), mark(x3))), MARK(sel(s(z0), x3)))
   A__SEL(s(x0), cons(x1, sel(0, x3))) -> c4(A__SEL(mark(x0), a__sel(0, mark(x3))), MARK(sel(0, x3)))
   A__SEL(s(from(z0)), cons(x1, sel(x2, x3))) -> c4(A__SEL(a__from(mark(z0)), a__sel(mark(x2), mark(x3))), MARK(sel(x2, x3)))
   A__SEL(s(sel(z0, z1)), cons(x1, sel(x2, x3))) -> c4(A__SEL(a__sel(mark(z0), mark(z1)), a__sel(mark(x2), mark(x3))), MARK(sel(x2, x3)))
   A__SEL(s(s(z0)), cons(x1, sel(x2, x3))) -> c4(A__SEL(s(mark(z0)), a__sel(mark(x2), mark(x3))), MARK(sel(x2, x3)))
   A__SEL(s(0), cons(x1, sel(x2, x3))) -> c4(A__SEL(0, a__sel(mark(x2), mark(x3))), MARK(sel(x2, x3)))
   A__SEL(s(x0), cons(x1, sel(x2, x3))) -> c4(MARK(sel(x2, x3)))
   A__SEL(s(cons(z0, z1)), cons(x1, sel(x2, x3))) -> c4(MARK(sel(x2, x3)))
   A__SEL(s(x0), cons(x1, cons(from(z0), x3))) -> c4(A__SEL(mark(x0), cons(a__from(mark(z0)), x3)), MARK(cons(from(z0), x3)))
   A__SEL(s(x0), cons(x1, cons(sel(z0, z1), x3))) -> c4(A__SEL(mark(x0), cons(a__sel(mark(z0), mark(z1)), x3)), MARK(cons(sel(z0, z1), x3)))
   A__SEL(s(x0), cons(x1, cons(cons(z0, z1), x3))) -> c4(A__SEL(mark(x0), cons(cons(mark(z0), z1), x3)), MARK(cons(cons(z0, z1), x3)))
   A__SEL(s(x0), cons(x1, cons(s(z0), x3))) -> c4(A__SEL(mark(x0), cons(s(mark(z0)), x3)), MARK(cons(s(z0), x3)))
   A__SEL(s(x0), cons(x1, cons(0, x3))) -> c4(A__SEL(mark(x0), cons(0, x3)), MARK(cons(0, x3)))
   A__SEL(s(from(z0)), cons(x1, cons(x2, x3))) -> c4(A__SEL(a__from(mark(z0)), cons(mark(x2), x3)), MARK(cons(x2, x3)))
   A__SEL(s(sel(z0, z1)), cons(x1, cons(x2, x3))) -> c4(A__SEL(a__sel(mark(z0), mark(z1)), cons(mark(x2), x3)), MARK(cons(x2, x3)))
   A__SEL(s(s(z0)), cons(x1, cons(x2, x3))) -> c4(A__SEL(s(mark(z0)), cons(mark(x2), x3)), MARK(cons(x2, x3)))
   A__SEL(s(0), cons(x1, cons(x2, x3))) -> c4(A__SEL(0, cons(mark(x2), x3)), MARK(cons(x2, x3)))
   A__SEL(s(x0), cons(x1, cons(x2, x3))) -> c4(MARK(cons(x2, x3)))
   A__SEL(s(cons(z0, z1)), cons(x1, cons(x2, x3))) -> c4(MARK(cons(x2, x3)))
   A__SEL(s(from(from(z0))), cons(x1, x2)) -> c4(A__SEL(a__from(a__from(mark(z0))), mark(x2)), MARK(x2))
   A__SEL(s(from(sel(z0, z1))), cons(x1, x2)) -> c4(A__SEL(a__from(a__sel(mark(z0), mark(z1))), mark(x2)), MARK(x2))
   A__SEL(s(from(cons(z0, z1))), cons(x1, x2)) -> c4(A__SEL(a__from(cons(mark(z0), z1)), mark(x2)), MARK(x2))
   A__SEL(s(from(s(z0))), cons(x1, x2)) -> c4(A__SEL(a__from(s(mark(z0))), mark(x2)), MARK(x2))
   A__SEL(s(from(0)), cons(x1, x2)) -> c4(A__SEL(a__from(0), mark(x2)), MARK(x2))
   A__SEL(s(from(x0)), cons(x1, s(z0))) -> c4(MARK(s(z0)))
   A__SEL(s(from(x0)), cons(x1, x2)) -> c4(MARK(x2))
   A__SEL(s(sel(x0, from(z0))), cons(x2, x3)) -> c4(A__SEL(a__sel(mark(x0), a__from(mark(z0))), mark(x3)), MARK(x3))
   A__SEL(s(sel(x0, sel(z0, z1))), cons(x2, x3)) -> c4(A__SEL(a__sel(mark(x0), a__sel(mark(z0), mark(z1))), mark(x3)), MARK(x3))
   A__SEL(s(sel(x0, cons(z0, z1))), cons(x2, x3)) -> c4(A__SEL(a__sel(mark(x0), cons(mark(z0), z1)), mark(x3)), MARK(x3))
   A__SEL(s(sel(x0, s(z0))), cons(x2, x3)) -> c4(A__SEL(a__sel(mark(x0), s(mark(z0))), mark(x3)), MARK(x3))
   A__SEL(s(sel(x0, 0)), cons(x2, x3)) -> c4(A__SEL(a__sel(mark(x0), 0), mark(x3)), MARK(x3))
   A__SEL(s(sel(from(z0), x1)), cons(x2, x3)) -> c4(A__SEL(a__sel(a__from(mark(z0)), mark(x1)), mark(x3)), MARK(x3))
   A__SEL(s(sel(sel(z0, z1), x1)), cons(x2, x3)) -> c4(A__SEL(a__sel(a__sel(mark(z0), mark(z1)), mark(x1)), mark(x3)), MARK(x3))
   A__SEL(s(sel(cons(z0, z1), x1)), cons(x2, x3)) -> c4(A__SEL(a__sel(cons(mark(z0), z1), mark(x1)), mark(x3)), MARK(x3))
   A__SEL(s(sel(s(z0), x1)), cons(x2, x3)) -> c4(A__SEL(a__sel(s(mark(z0)), mark(x1)), mark(x3)), MARK(x3))
   A__SEL(s(sel(0, x1)), cons(x2, x3)) -> c4(A__SEL(a__sel(0, mark(x1)), mark(x3)), MARK(x3))
   A__SEL(s(sel(x0, x1)), cons(x2, s(z0))) -> c4(MARK(s(z0)))
   A__SEL(s(sel(x0, x1)), cons(x2, x3)) -> c4(MARK(x3))
   A__SEL(s(s(from(z0))), cons(x1, x2)) -> c4(A__SEL(s(a__from(mark(z0))), mark(x2)), MARK(x2))
   A__SEL(s(s(sel(z0, z1))), cons(x1, x2)) -> c4(A__SEL(s(a__sel(mark(z0), mark(z1))), mark(x2)), MARK(x2))
   A__SEL(s(s(cons(z0, z1))), cons(x1, x2)) -> c4(A__SEL(s(cons(mark(z0), z1)), mark(x2)), MARK(x2))
   A__SEL(s(s(s(z0))), cons(x1, x2)) -> c4(A__SEL(s(s(mark(z0))), mark(x2)), MARK(x2))
   A__SEL(s(s(0)), cons(x1, x2)) -> c4(A__SEL(s(0), mark(x2)), MARK(x2))
   A__SEL(s(s(x0)), cons(x1, s(z0))) -> c4(MARK(s(z0)))
   A__SEL(s(0), cons(x0, s(z0))) -> c4(MARK(s(z0)))
   MARK(sel(x0, from(x1))) -> c7(A__SEL(mark(x0), cons(mark(mark(x1)), from(s(mark(x1))))), MARK(x0))
   MARK(sel(x0, from(from(z0)))) -> c7(A__SEL(mark(x0), a__from(a__from(mark(z0)))), MARK(x0))
   MARK(sel(x0, from(sel(z0, z1)))) -> c7(A__SEL(mark(x0), a__from(a__sel(mark(z0), mark(z1)))), MARK(x0))
   MARK(sel(x0, from(cons(z0, z1)))) -> c7(A__SEL(mark(x0), a__from(cons(mark(z0), z1))), MARK(x0))
   MARK(sel(x0, from(s(z0)))) -> c7(A__SEL(mark(x0), a__from(s(mark(z0)))), MARK(x0))
   MARK(sel(x0, from(0))) -> c7(A__SEL(mark(x0), a__from(0)), MARK(x0))
   MARK(sel(from(z0), from(x1))) -> c7(A__SEL(a__from(mark(z0)), a__from(mark(x1))), MARK(from(z0)))
   MARK(sel(sel(z0, z1), from(x1))) -> c7(A__SEL(a__sel(mark(z0), mark(z1)), a__from(mark(x1))), MARK(sel(z0, z1)))
   MARK(sel(s(z0), from(x1))) -> c7(A__SEL(s(mark(z0)), a__from(mark(x1))), MARK(s(z0)))
   MARK(sel(x0, from(x1))) -> c7(MARK(x0))
   MARK(sel(cons(z0, z1), from(x1))) -> c7(MARK(cons(z0, z1)))
   MARK(sel(0, from(x1))) -> c7(A__SEL(0, a__from(mark(x1))))
   MARK(sel(x0, sel(x1, from(z0)))) -> c7(A__SEL(mark(x0), a__sel(mark(x1), a__from(mark(z0)))), MARK(x0))
   MARK(sel(x0, sel(x1, sel(z0, z1)))) -> c7(A__SEL(mark(x0), a__sel(mark(x1), a__sel(mark(z0), mark(z1)))), MARK(x0))
   MARK(sel(x0, sel(x1, cons(z0, z1)))) -> c7(A__SEL(mark(x0), a__sel(mark(x1), cons(mark(z0), z1))), MARK(x0))
   MARK(sel(x0, sel(x1, s(z0)))) -> c7(A__SEL(mark(x0), a__sel(mark(x1), s(mark(z0)))), MARK(x0))
   MARK(sel(x0, sel(x1, 0))) -> c7(A__SEL(mark(x0), a__sel(mark(x1), 0)), MARK(x0))
   MARK(sel(x0, sel(from(z0), x2))) -> c7(A__SEL(mark(x0), a__sel(a__from(mark(z0)), mark(x2))), MARK(x0))
   MARK(sel(x0, sel(sel(z0, z1), x2))) -> c7(A__SEL(mark(x0), a__sel(a__sel(mark(z0), mark(z1)), mark(x2))), MARK(x0))
   MARK(sel(x0, sel(cons(z0, z1), x2))) -> c7(A__SEL(mark(x0), a__sel(cons(mark(z0), z1), mark(x2))), MARK(x0))
   MARK(sel(x0, sel(s(z0), x2))) -> c7(A__SEL(mark(x0), a__sel(s(mark(z0)), mark(x2))), MARK(x0))
   MARK(sel(x0, sel(0, x2))) -> c7(A__SEL(mark(x0), a__sel(0, mark(x2))), MARK(x0))
   MARK(sel(from(z0), sel(x1, x2))) -> c7(A__SEL(a__from(mark(z0)), a__sel(mark(x1), mark(x2))), MARK(from(z0)))
   MARK(sel(sel(z0, z1), sel(x1, x2))) -> c7(A__SEL(a__sel(mark(z0), mark(z1)), a__sel(mark(x1), mark(x2))), MARK(sel(z0, z1)))
   MARK(sel(s(z0), sel(x1, x2))) -> c7(A__SEL(s(mark(z0)), a__sel(mark(x1), mark(x2))), MARK(s(z0)))
   MARK(sel(x0, sel(x1, x2))) -> c7(MARK(x0))
   MARK(sel(cons(z0, z1), sel(x1, x2))) -> c7(MARK(cons(z0, z1)))
   MARK(sel(0, sel(x1, x2))) -> c7(A__SEL(0, a__sel(mark(x1), mark(x2))))
   MARK(sel(x0, cons(from(z0), x2))) -> c7(A__SEL(mark(x0), cons(a__from(mark(z0)), x2)), MARK(x0))
   MARK(sel(x0, cons(sel(z0, z1), x2))) -> c7(A__SEL(mark(x0), cons(a__sel(mark(z0), mark(z1)), x2)), MARK(x0))
   MARK(sel(x0, cons(cons(z0, z1), x2))) -> c7(A__SEL(mark(x0), cons(cons(mark(z0), z1), x2)), MARK(x0))
   MARK(sel(x0, cons(s(z0), x2))) -> c7(A__SEL(mark(x0), cons(s(mark(z0)), x2)), MARK(x0))
   MARK(sel(x0, cons(0, x2))) -> c7(A__SEL(mark(x0), cons(0, x2)), MARK(x0))
   MARK(sel(from(z0), cons(x1, x2))) -> c7(A__SEL(a__from(mark(z0)), cons(mark(x1), x2)), MARK(from(z0)))
   MARK(sel(sel(z0, z1), cons(x1, x2))) -> c7(A__SEL(a__sel(mark(z0), mark(z1)), cons(mark(x1), x2)), MARK(sel(z0, z1)))
   MARK(sel(s(z0), cons(x1, x2))) -> c7(A__SEL(s(mark(z0)), cons(mark(x1), x2)), MARK(s(z0)))
   MARK(sel(cons(z0, z1), cons(x1, x2))) -> c7(MARK(cons(z0, z1)))
   MARK(sel(0, cons(x1, x2))) -> c7(A__SEL(0, cons(mark(x1), x2)))
   MARK(sel(from(from(z0)), x1)) -> c7(A__SEL(a__from(a__from(mark(z0))), mark(x1)), MARK(from(from(z0))))
   MARK(sel(from(sel(z0, z1)), x1)) -> c7(A__SEL(a__from(a__sel(mark(z0), mark(z1))), mark(x1)), MARK(from(sel(z0, z1))))
   MARK(sel(from(cons(z0, z1)), x1)) -> c7(A__SEL(a__from(cons(mark(z0), z1)), mark(x1)), MARK(from(cons(z0, z1))))
   MARK(sel(from(s(z0)), x1)) -> c7(A__SEL(a__from(s(mark(z0))), mark(x1)), MARK(from(s(z0))))
   MARK(sel(from(x0), x1)) -> c7(MARK(from(x0)))
   MARK(sel(from(x0), s(z0))) -> c7(MARK(from(x0)))
   MARK(sel(from(x0), 0)) -> c7(MARK(from(x0)))
   MARK(sel(sel(x0, from(z0)), x2)) -> c7(A__SEL(a__sel(mark(x0), a__from(mark(z0))), mark(x2)), MARK(sel(x0, from(z0))))
   MARK(sel(sel(x0, sel(z0, z1)), x2)) -> c7(A__SEL(a__sel(mark(x0), a__sel(mark(z0), mark(z1))), mark(x2)), MARK(sel(x0, sel(z0, z1))))
   MARK(sel(sel(x0, cons(z0, z1)), x2)) -> c7(A__SEL(a__sel(mark(x0), cons(mark(z0), z1)), mark(x2)), MARK(sel(x0, cons(z0, z1))))
   MARK(sel(sel(x0, s(z0)), x2)) -> c7(A__SEL(a__sel(mark(x0), s(mark(z0))), mark(x2)), MARK(sel(x0, s(z0))))
   MARK(sel(sel(x0, 0), x2)) -> c7(A__SEL(a__sel(mark(x0), 0), mark(x2)), MARK(sel(x0, 0)))
   MARK(sel(sel(from(z0), x1), x2)) -> c7(A__SEL(a__sel(a__from(mark(z0)), mark(x1)), mark(x2)), MARK(sel(from(z0), x1)))
   MARK(sel(sel(sel(z0, z1), x1), x2)) -> c7(A__SEL(a__sel(a__sel(mark(z0), mark(z1)), mark(x1)), mark(x2)), MARK(sel(sel(z0, z1), x1)))
   MARK(sel(sel(cons(z0, z1), x1), x2)) -> c7(A__SEL(a__sel(cons(mark(z0), z1), mark(x1)), mark(x2)), MARK(sel(cons(z0, z1), x1)))
   MARK(sel(sel(s(z0), x1), x2)) -> c7(A__SEL(a__sel(s(mark(z0)), mark(x1)), mark(x2)), MARK(sel(s(z0), x1)))
   MARK(sel(sel(0, x1), x2)) -> c7(A__SEL(a__sel(0, mark(x1)), mark(x2)), MARK(sel(0, x1)))
   MARK(sel(sel(x0, x1), s(z0))) -> c7(MARK(sel(x0, x1)))
   MARK(sel(sel(x0, x1), 0)) -> c7(MARK(sel(x0, x1)))
   MARK(sel(sel(x0, x1), x2)) -> c7(MARK(sel(x0, x1)))
   MARK(sel(s(from(z0)), x1)) -> c7(A__SEL(s(a__from(mark(z0))), mark(x1)), MARK(s(from(z0))))
   MARK(sel(s(sel(z0, z1)), x1)) -> c7(A__SEL(s(a__sel(mark(z0), mark(z1))), mark(x1)), MARK(s(sel(z0, z1))))
   MARK(sel(s(cons(z0, z1)), x1)) -> c7(A__SEL(s(cons(mark(z0), z1)), mark(x1)), MARK(s(cons(z0, z1))))
   MARK(sel(s(s(z0)), x1)) -> c7(A__SEL(s(s(mark(z0))), mark(x1)), MARK(s(s(z0))))
   MARK(sel(s(0), x1)) -> c7(A__SEL(s(0), mark(x1)), MARK(s(0)))
   MARK(sel(s(x0), x1)) -> c7(MARK(s(x0)))
   MARK(sel(s(x0), s(z0))) -> c7(MARK(s(x0)))
   MARK(sel(s(x0), 0)) -> c7(MARK(s(x0)))
   MARK(sel(x0, from(x1))) -> c8(A__SEL(mark(x0), cons(mark(mark(x1)), from(s(mark(x1))))), MARK(from(x1)))
   MARK(sel(x0, from(from(z0)))) -> c8(A__SEL(mark(x0), a__from(a__from(mark(z0)))), MARK(from(from(z0))))
   MARK(sel(x0, from(sel(z0, z1)))) -> c8(A__SEL(mark(x0), a__from(a__sel(mark(z0), mark(z1)))), MARK(from(sel(z0, z1))))
   MARK(sel(x0, from(cons(z0, z1)))) -> c8(A__SEL(mark(x0), a__from(cons(mark(z0), z1))), MARK(from(cons(z0, z1))))
   MARK(sel(x0, from(s(z0)))) -> c8(A__SEL(mark(x0), a__from(s(mark(z0)))), MARK(from(s(z0))))
   MARK(sel(from(z0), from(x1))) -> c8(A__SEL(a__from(mark(z0)), a__from(mark(x1))), MARK(from(x1)))
   MARK(sel(sel(z0, z1), from(x1))) -> c8(A__SEL(a__sel(mark(z0), mark(z1)), a__from(mark(x1))), MARK(from(x1)))
   MARK(sel(s(z0), from(x1))) -> c8(A__SEL(s(mark(z0)), a__from(mark(x1))), MARK(from(x1)))
   MARK(sel(0, from(x1))) -> c8(A__SEL(0, a__from(mark(x1))), MARK(from(x1)))
   MARK(sel(x0, from(x1))) -> c8(MARK(from(x1)))
   MARK(sel(cons(z0, z1), from(x1))) -> c8(MARK(from(x1)))
   MARK(sel(x0, sel(x1, from(z0)))) -> c8(A__SEL(mark(x0), a__sel(mark(x1), a__from(mark(z0)))), MARK(sel(x1, from(z0))))
   MARK(sel(x0, sel(x1, sel(z0, z1)))) -> c8(A__SEL(mark(x0), a__sel(mark(x1), a__sel(mark(z0), mark(z1)))), MARK(sel(x1, sel(z0, z1))))
   MARK(sel(x0, sel(x1, cons(z0, z1)))) -> c8(A__SEL(mark(x0), a__sel(mark(x1), cons(mark(z0), z1))), MARK(sel(x1, cons(z0, z1))))
   MARK(sel(x0, sel(x1, s(z0)))) -> c8(A__SEL(mark(x0), a__sel(mark(x1), s(mark(z0)))), MARK(sel(x1, s(z0))))
   MARK(sel(x0, sel(x1, 0))) -> c8(A__SEL(mark(x0), a__sel(mark(x1), 0)), MARK(sel(x1, 0)))
   MARK(sel(x0, sel(from(z0), x2))) -> c8(A__SEL(mark(x0), a__sel(a__from(mark(z0)), mark(x2))), MARK(sel(from(z0), x2)))
   MARK(sel(x0, sel(sel(z0, z1), x2))) -> c8(A__SEL(mark(x0), a__sel(a__sel(mark(z0), mark(z1)), mark(x2))), MARK(sel(sel(z0, z1), x2)))
   MARK(sel(x0, sel(cons(z0, z1), x2))) -> c8(A__SEL(mark(x0), a__sel(cons(mark(z0), z1), mark(x2))), MARK(sel(cons(z0, z1), x2)))
   MARK(sel(x0, sel(s(z0), x2))) -> c8(A__SEL(mark(x0), a__sel(s(mark(z0)), mark(x2))), MARK(sel(s(z0), x2)))
   MARK(sel(x0, sel(0, x2))) -> c8(A__SEL(mark(x0), a__sel(0, mark(x2))), MARK(sel(0, x2)))
   MARK(sel(from(z0), sel(x1, x2))) -> c8(A__SEL(a__from(mark(z0)), a__sel(mark(x1), mark(x2))), MARK(sel(x1, x2)))
   MARK(sel(sel(z0, z1), sel(x1, x2))) -> c8(A__SEL(a__sel(mark(z0), mark(z1)), a__sel(mark(x1), mark(x2))), MARK(sel(x1, x2)))
   MARK(sel(s(z0), sel(x1, x2))) -> c8(A__SEL(s(mark(z0)), a__sel(mark(x1), mark(x2))), MARK(sel(x1, x2)))
   MARK(sel(0, sel(x1, x2))) -> c8(A__SEL(0, a__sel(mark(x1), mark(x2))), MARK(sel(x1, x2)))
   MARK(sel(x0, sel(x1, x2))) -> c8(MARK(sel(x1, x2)))
   MARK(sel(cons(z0, z1), sel(x1, x2))) -> c8(MARK(sel(x1, x2)))
   MARK(sel(x0, cons(from(z0), x2))) -> c8(A__SEL(mark(x0), cons(a__from(mark(z0)), x2)), MARK(cons(from(z0), x2)))
   MARK(sel(x0, cons(sel(z0, z1), x2))) -> c8(A__SEL(mark(x0), cons(a__sel(mark(z0), mark(z1)), x2)), MARK(cons(sel(z0, z1), x2)))
   MARK(sel(x0, cons(cons(z0, z1), x2))) -> c8(A__SEL(mark(x0), cons(cons(mark(z0), z1), x2)), MARK(cons(cons(z0, z1), x2)))
   MARK(sel(x0, cons(s(z0), x2))) -> c8(A__SEL(mark(x0), cons(s(mark(z0)), x2)), MARK(cons(s(z0), x2)))
   MARK(sel(x0, cons(0, x2))) -> c8(A__SEL(mark(x0), cons(0, x2)), MARK(cons(0, x2)))
   MARK(sel(from(z0), cons(x1, x2))) -> c8(A__SEL(a__from(mark(z0)), cons(mark(x1), x2)), MARK(cons(x1, x2)))
   MARK(sel(sel(z0, z1), cons(x1, x2))) -> c8(A__SEL(a__sel(mark(z0), mark(z1)), cons(mark(x1), x2)), MARK(cons(x1, x2)))
   MARK(sel(s(z0), cons(x1, x2))) -> c8(A__SEL(s(mark(z0)), cons(mark(x1), x2)), MARK(cons(x1, x2)))
   MARK(sel(0, cons(x1, x2))) -> c8(A__SEL(0, cons(mark(x1), x2)), MARK(cons(x1, x2)))
   MARK(sel(x0, cons(x1, x2))) -> c8(MARK(cons(x1, x2)))
   MARK(sel(cons(z0, z1), cons(x1, x2))) -> c8(MARK(cons(x1, x2)))
   MARK(sel(from(from(z0)), x1)) -> c8(A__SEL(a__from(a__from(mark(z0))), mark(x1)), MARK(x1))
   MARK(sel(from(sel(z0, z1)), x1)) -> c8(A__SEL(a__from(a__sel(mark(z0), mark(z1))), mark(x1)), MARK(x1))
   MARK(sel(from(cons(z0, z1)), x1)) -> c8(A__SEL(a__from(cons(mark(z0), z1)), mark(x1)), MARK(x1))
   MARK(sel(from(s(z0)), x1)) -> c8(A__SEL(a__from(s(mark(z0))), mark(x1)), MARK(x1))
   MARK(sel(from(0), x1)) -> c8(A__SEL(a__from(0), mark(x1)), MARK(x1))
   MARK(sel(from(x0), s(z0))) -> c8(MARK(s(z0)))
   MARK(sel(from(x0), x1)) -> c8(MARK(x1))
   MARK(sel(sel(x0, from(z0)), x2)) -> c8(A__SEL(a__sel(mark(x0), a__from(mark(z0))), mark(x2)), MARK(x2))
   MARK(sel(sel(x0, sel(z0, z1)), x2)) -> c8(A__SEL(a__sel(mark(x0), a__sel(mark(z0), mark(z1))), mark(x2)), MARK(x2))
   MARK(sel(sel(x0, cons(z0, z1)), x2)) -> c8(A__SEL(a__sel(mark(x0), cons(mark(z0), z1)), mark(x2)), MARK(x2))
   MARK(sel(sel(x0, s(z0)), x2)) -> c8(A__SEL(a__sel(mark(x0), s(mark(z0))), mark(x2)), MARK(x2))
   MARK(sel(sel(x0, 0), x2)) -> c8(A__SEL(a__sel(mark(x0), 0), mark(x2)), MARK(x2))
   MARK(sel(sel(from(z0), x1), x2)) -> c8(A__SEL(a__sel(a__from(mark(z0)), mark(x1)), mark(x2)), MARK(x2))
   MARK(sel(sel(sel(z0, z1), x1), x2)) -> c8(A__SEL(a__sel(a__sel(mark(z0), mark(z1)), mark(x1)), mark(x2)), MARK(x2))
   MARK(sel(sel(cons(z0, z1), x1), x2)) -> c8(A__SEL(a__sel(cons(mark(z0), z1), mark(x1)), mark(x2)), MARK(x2))
   MARK(sel(sel(s(z0), x1), x2)) -> c8(A__SEL(a__sel(s(mark(z0)), mark(x1)), mark(x2)), MARK(x2))
   MARK(sel(sel(0, x1), x2)) -> c8(A__SEL(a__sel(0, mark(x1)), mark(x2)), MARK(x2))
   MARK(sel(sel(x0, x1), s(z0))) -> c8(MARK(s(z0)))
   MARK(sel(sel(x0, x1), x2)) -> c8(MARK(x2))
   MARK(sel(s(from(z0)), x1)) -> c8(A__SEL(s(a__from(mark(z0))), mark(x1)), MARK(x1))
   MARK(sel(s(sel(z0, z1)), x1)) -> c8(A__SEL(s(a__sel(mark(z0), mark(z1))), mark(x1)), MARK(x1))
   MARK(sel(s(cons(z0, z1)), x1)) -> c8(A__SEL(s(cons(mark(z0), z1)), mark(x1)), MARK(x1))
   MARK(sel(s(s(z0)), x1)) -> c8(A__SEL(s(s(mark(z0))), mark(x1)), MARK(x1))
   MARK(sel(s(0), x1)) -> c8(A__SEL(s(0), mark(x1)), MARK(x1))
   MARK(sel(s(x0), s(z0))) -> c8(MARK(s(z0)))
   MARK(sel(0, s(z0))) -> c8(MARK(s(z0)))
   A__FROM(from(y0)) -> c(MARK(from(y0)))
   A__FROM(cons(y0, y1)) -> c(MARK(cons(y0, y1)))
   A__FROM(s(y0)) -> c(MARK(s(y0)))
   A__FROM(sel(y0, s(y1))) -> c(MARK(sel(y0, s(y1))))
   A__FROM(sel(y0, 0)) -> c(MARK(sel(y0, 0)))
   A__FROM(sel(cons(y0, y1), y2)) -> c(MARK(sel(cons(y0, y1), y2)))
   A__FROM(sel(y0, from(y1))) -> c(MARK(sel(y0, from(y1))))
   A__FROM(sel(y0, from(from(y1)))) -> c(MARK(sel(y0, from(from(y1)))))
   A__FROM(sel(y0, from(sel(y1, y2)))) -> c(MARK(sel(y0, from(sel(y1, y2)))))
   A__FROM(sel(y0, from(cons(y1, y2)))) -> c(MARK(sel(y0, from(cons(y1, y2)))))
   A__FROM(sel(y0, from(s(y1)))) -> c(MARK(sel(y0, from(s(y1)))))
   A__FROM(sel(y0, from(0))) -> c(MARK(sel(y0, from(0))))
   A__FROM(sel(from(y0), from(y1))) -> c(MARK(sel(from(y0), from(y1))))
   A__FROM(sel(sel(y0, y1), from(y2))) -> c(MARK(sel(sel(y0, y1), from(y2))))
   A__FROM(sel(s(y0), from(y1))) -> c(MARK(sel(s(y0), from(y1))))
   A__FROM(sel(cons(y0, y1), from(y2))) -> c(MARK(sel(cons(y0, y1), from(y2))))
   A__FROM(sel(0, from(y0))) -> c(MARK(sel(0, from(y0))))
   A__FROM(sel(y0, sel(y1, from(y2)))) -> c(MARK(sel(y0, sel(y1, from(y2)))))
   A__FROM(sel(y0, sel(y1, sel(y2, y3)))) -> c(MARK(sel(y0, sel(y1, sel(y2, y3)))))
   A__FROM(sel(y0, sel(y1, cons(y2, y3)))) -> c(MARK(sel(y0, sel(y1, cons(y2, y3)))))
   A__FROM(sel(y0, sel(y1, s(y2)))) -> c(MARK(sel(y0, sel(y1, s(y2)))))
   A__FROM(sel(y0, sel(y1, 0))) -> c(MARK(sel(y0, sel(y1, 0))))
   A__FROM(sel(y0, sel(from(y1), y2))) -> c(MARK(sel(y0, sel(from(y1), y2))))
   A__FROM(sel(y0, sel(sel(y1, y2), y3))) -> c(MARK(sel(y0, sel(sel(y1, y2), y3))))
   A__FROM(sel(y0, sel(cons(y1, y2), y3))) -> c(MARK(sel(y0, sel(cons(y1, y2), y3))))
   A__FROM(sel(y0, sel(s(y1), y2))) -> c(MARK(sel(y0, sel(s(y1), y2))))
   A__FROM(sel(y0, sel(0, y1))) -> c(MARK(sel(y0, sel(0, y1))))
   A__FROM(sel(from(y0), sel(y1, y2))) -> c(MARK(sel(from(y0), sel(y1, y2))))
   A__FROM(sel(sel(y0, y1), sel(y2, y3))) -> c(MARK(sel(sel(y0, y1), sel(y2, y3))))
   A__FROM(sel(s(y0), sel(y1, y2))) -> c(MARK(sel(s(y0), sel(y1, y2))))
   A__FROM(sel(y0, sel(y1, y2))) -> c(MARK(sel(y0, sel(y1, y2))))
   A__FROM(sel(cons(y0, y1), sel(y2, y3))) -> c(MARK(sel(cons(y0, y1), sel(y2, y3))))
   A__FROM(sel(0, sel(y0, y1))) -> c(MARK(sel(0, sel(y0, y1))))
   A__FROM(sel(y0, cons(from(y1), y2))) -> c(MARK(sel(y0, cons(from(y1), y2))))
   A__FROM(sel(y0, cons(sel(y1, y2), y3))) -> c(MARK(sel(y0, cons(sel(y1, y2), y3))))
   A__FROM(sel(y0, cons(cons(y1, y2), y3))) -> c(MARK(sel(y0, cons(cons(y1, y2), y3))))
   A__FROM(sel(y0, cons(s(y1), y2))) -> c(MARK(sel(y0, cons(s(y1), y2))))
   A__FROM(sel(y0, cons(0, y1))) -> c(MARK(sel(y0, cons(0, y1))))
   A__FROM(sel(from(y0), cons(y1, y2))) -> c(MARK(sel(from(y0), cons(y1, y2))))
   A__FROM(sel(sel(y0, y1), cons(y2, y3))) -> c(MARK(sel(sel(y0, y1), cons(y2, y3))))
   A__FROM(sel(s(y0), cons(y1, y2))) -> c(MARK(sel(s(y0), cons(y1, y2))))
   A__FROM(sel(cons(y0, y1), cons(y2, y3))) -> c(MARK(sel(cons(y0, y1), cons(y2, y3))))
   A__FROM(sel(0, cons(y0, y1))) -> c(MARK(sel(0, cons(y0, y1))))
   A__FROM(sel(from(from(y0)), y1)) -> c(MARK(sel(from(from(y0)), y1)))
   A__FROM(sel(from(sel(y0, y1)), y2)) -> c(MARK(sel(from(sel(y0, y1)), y2)))
   A__FROM(sel(from(cons(y0, y1)), y2)) -> c(MARK(sel(from(cons(y0, y1)), y2)))
   A__FROM(sel(from(s(y0)), y1)) -> c(MARK(sel(from(s(y0)), y1)))
   A__FROM(sel(from(0), y0)) -> c(MARK(sel(from(0), y0)))
   A__FROM(sel(from(y0), y1)) -> c(MARK(sel(from(y0), y1)))
   A__FROM(sel(from(y0), s(y1))) -> c(MARK(sel(from(y0), s(y1))))
   A__FROM(sel(from(y0), 0)) -> c(MARK(sel(from(y0), 0)))
   A__FROM(sel(sel(y0, from(y1)), y2)) -> c(MARK(sel(sel(y0, from(y1)), y2)))
   A__FROM(sel(sel(y0, sel(y1, y2)), y3)) -> c(MARK(sel(sel(y0, sel(y1, y2)), y3)))
   A__FROM(sel(sel(y0, cons(y1, y2)), y3)) -> c(MARK(sel(sel(y0, cons(y1, y2)), y3)))
   A__FROM(sel(sel(y0, s(y1)), y2)) -> c(MARK(sel(sel(y0, s(y1)), y2)))
   A__FROM(sel(sel(y0, 0), y1)) -> c(MARK(sel(sel(y0, 0), y1)))
   A__FROM(sel(sel(from(y0), y1), y2)) -> c(MARK(sel(sel(from(y0), y1), y2)))
   A__FROM(sel(sel(sel(y0, y1), y2), y3)) -> c(MARK(sel(sel(sel(y0, y1), y2), y3)))
   A__FROM(sel(sel(cons(y0, y1), y2), y3)) -> c(MARK(sel(sel(cons(y0, y1), y2), y3)))
   A__FROM(sel(sel(s(y0), y1), y2)) -> c(MARK(sel(sel(s(y0), y1), y2)))
   A__FROM(sel(sel(0, y0), y1)) -> c(MARK(sel(sel(0, y0), y1)))
   A__FROM(sel(sel(y0, y1), s(y2))) -> c(MARK(sel(sel(y0, y1), s(y2))))
   A__FROM(sel(sel(y0, y1), 0)) -> c(MARK(sel(sel(y0, y1), 0)))
   A__FROM(sel(sel(y0, y1), y2)) -> c(MARK(sel(sel(y0, y1), y2)))
   A__FROM(sel(s(from(y0)), y1)) -> c(MARK(sel(s(from(y0)), y1)))
   A__FROM(sel(s(sel(y0, y1)), y2)) -> c(MARK(sel(s(sel(y0, y1)), y2)))
   A__FROM(sel(s(cons(y0, y1)), y2)) -> c(MARK(sel(s(cons(y0, y1)), y2)))
   A__FROM(sel(s(s(y0)), y1)) -> c(MARK(sel(s(s(y0)), y1)))
   A__FROM(sel(s(0), y0)) -> c(MARK(sel(s(0), y0)))
   A__FROM(sel(s(y0), y1)) -> c(MARK(sel(s(y0), y1)))
   A__FROM(sel(s(y0), s(y1))) -> c(MARK(sel(s(y0), s(y1))))
   A__FROM(sel(s(y0), 0)) -> c(MARK(sel(s(y0), 0)))
   A__FROM(sel(y0, cons(y1, y2))) -> c(MARK(sel(y0, cons(y1, y2))))
   A__FROM(sel(0, s(y0))) -> c(MARK(sel(0, s(y0))))
   MARK(from(from(z0))) -> c6(A__FROM(a__from(mark(z0))), MARK(from(z0)))
   MARK(from(sel(z0, z1))) -> c6(A__FROM(a__sel(mark(z0), mark(z1))), MARK(sel(z0, z1)))
   MARK(from(cons(z0, z1))) -> c6(A__FROM(cons(mark(z0), z1)), MARK(cons(z0, z1)))
   MARK(from(s(z0))) -> c6(A__FROM(s(mark(z0))), MARK(s(z0)))
   A__SEL(s(from(0)), cons(x1, x2)) -> c3(A__SEL(a__from(0), mark(x2)))
   A__SEL(s(x0), cons(x1, from(0))) -> c4(A__SEL(mark(x0), a__from(0)))
   MARK(sel(from(0), x1)) -> c7(A__SEL(a__from(0), mark(x1)))
   MARK(sel(x0, from(0))) -> c8(A__SEL(mark(x0), a__from(0)))
K tuples:none
Defined Rule Symbols:   a__from_1, a__sel_2, mark_1

Defined Pair Symbols:   A__SEL_2, MARK_1, A__FROM_1

Compound Symbols:   c2_1, c9_1, c10_1, c3_1, c4_1, c7_1, c8_1, c3_2, c4_2, c7_2, c8_2, c_1, c6_2