(VAR V1 V2 N XS X Y YS ZS X1 X2 X3 X4)
(RULES 
active(U101(tt,V1,V2)) -> mark(U102(isNaturalKind(V1),V1,V2))
active(U102(tt,V1,V2)) -> mark(U103(isLNatKind(V2),V1,V2))
active(U103(tt,V1,V2)) -> mark(U104(isLNatKind(V2),V1,V2))
active(U104(tt,V1,V2)) -> mark(U105(isNatural(V1),V2))
active(U105(tt,V2)) -> mark(U106(isLNat(V2)))
active(U106(tt)) -> mark(tt)
active(U11(tt,N,XS)) -> mark(U12(isNaturalKind(N),N,XS))
active(U111(tt,V2)) -> mark(U112(isLNatKind(V2)))
active(U112(tt)) -> mark(tt)
active(U12(tt,N,XS)) -> mark(U13(isLNat(XS),N,XS))
active(U121(tt,V2)) -> mark(U122(isLNatKind(V2)))
active(U122(tt)) -> mark(tt)
active(U13(tt,N,XS)) -> mark(U14(isLNatKind(XS),N,XS))
active(U131(tt)) -> mark(tt)
active(U14(tt,N,XS)) -> mark(snd(splitAt(N,XS)))
active(U141(tt)) -> mark(tt)
active(U151(tt)) -> mark(tt)
active(U161(tt)) -> mark(tt)
active(U171(tt,V2)) -> mark(U172(isLNatKind(V2)))
active(U172(tt)) -> mark(tt)
active(U181(tt,V1)) -> mark(U182(isLNatKind(V1),V1))
active(U182(tt,V1)) -> mark(U183(isLNat(V1)))
active(U183(tt)) -> mark(tt)
active(U191(tt,V1)) -> mark(U192(isNaturalKind(V1),V1))
active(U192(tt,V1)) -> mark(U193(isNatural(V1)))
active(U193(tt)) -> mark(tt)
active(U201(tt,V1,V2)) -> mark(U202(isNaturalKind(V1),V1,V2))
active(U202(tt,V1,V2)) -> mark(U203(isLNatKind(V2),V1,V2))
active(U203(tt,V1,V2)) -> mark(U204(isLNatKind(V2),V1,V2))
active(U204(tt,V1,V2)) -> mark(U205(isNatural(V1),V2))
active(U205(tt,V2)) -> mark(U206(isLNat(V2)))
active(U206(tt)) -> mark(tt)
active(U21(tt,X,Y)) -> mark(U22(isLNatKind(X),X,Y))
active(U211(tt)) -> mark(tt)
active(U22(tt,X,Y)) -> mark(U23(isLNat(Y),X,Y))
active(U221(tt)) -> mark(tt)
active(U23(tt,X,Y)) -> mark(U24(isLNatKind(Y),X))
active(U231(tt,V2)) -> mark(U232(isLNatKind(V2)))
active(U232(tt)) -> mark(tt)
active(U24(tt,X)) -> mark(X)
active(U241(tt,V1,V2)) -> mark(U242(isLNatKind(V1),V1,V2))
active(U242(tt,V1,V2)) -> mark(U243(isLNatKind(V2),V1,V2))
active(U243(tt,V1,V2)) -> mark(U244(isLNatKind(V2),V1,V2))
active(U244(tt,V1,V2)) -> mark(U245(isLNat(V1),V2))
active(U245(tt,V2)) -> mark(U246(isLNat(V2)))
active(U246(tt)) -> mark(tt)
active(U251(tt,V1,V2)) -> mark(U252(isNaturalKind(V1),V1,V2))
active(U252(tt,V1,V2)) -> mark(U253(isLNatKind(V2),V1,V2))
active(U253(tt,V1,V2)) -> mark(U254(isLNatKind(V2),V1,V2))
active(U254(tt,V1,V2)) -> mark(U255(isNatural(V1),V2))
active(U255(tt,V2)) -> mark(U256(isLNat(V2)))
active(U256(tt)) -> mark(tt)
active(U261(tt,V2)) -> mark(U262(isLNatKind(V2)))
active(U262(tt)) -> mark(tt)
active(U271(tt,V2)) -> mark(U272(isLNatKind(V2)))
active(U272(tt)) -> mark(tt)
active(U281(tt,N)) -> mark(U282(isNaturalKind(N),N))
active(U282(tt,N)) -> mark(cons(N,natsFrom(s(N))))
active(U291(tt,N,XS)) -> mark(U292(isNaturalKind(N),N,XS))
active(U292(tt,N,XS)) -> mark(U293(isLNat(XS),N,XS))
active(U293(tt,N,XS)) -> mark(U294(isLNatKind(XS),N,XS))
active(U294(tt,N,XS)) -> mark(head(afterNth(N,XS)))
active(U301(tt,X,Y)) -> mark(U302(isLNatKind(X),Y))
active(U302(tt,Y)) -> mark(U303(isLNat(Y),Y))
active(U303(tt,Y)) -> mark(U304(isLNatKind(Y),Y))
active(U304(tt,Y)) -> mark(Y)
active(U31(tt,N,XS)) -> mark(U32(isNaturalKind(N),N,XS))
active(U311(tt,XS)) -> mark(U312(isLNatKind(XS),XS))
active(U312(tt,XS)) -> mark(pair(nil,XS))
active(U32(tt,N,XS)) -> mark(U33(isLNat(XS),N,XS))
active(U321(tt,N,X,XS)) -> mark(U322(isNaturalKind(N),N,X,XS))
active(U322(tt,N,X,XS)) -> mark(U323(isNatural(X),N,X,XS))
active(U323(tt,N,X,XS)) -> mark(U324(isNaturalKind(X),N,X,XS))
active(U324(tt,N,X,XS)) -> mark(U325(isLNat(XS),N,X,XS))
active(U325(tt,N,X,XS)) -> mark(U326(isLNatKind(XS),N,X,XS))
active(U326(tt,N,X,XS)) -> mark(U327(splitAt(N,XS),X))
active(U327(pair(YS,ZS),X)) -> mark(pair(cons(X,YS),ZS))
active(U33(tt,N,XS)) -> mark(U34(isLNatKind(XS),N))
active(U331(tt,N,XS)) -> mark(U332(isNaturalKind(N),XS))
active(U332(tt,XS)) -> mark(U333(isLNat(XS),XS))
active(U333(tt,XS)) -> mark(U334(isLNatKind(XS),XS))
active(U334(tt,XS)) -> mark(XS)
active(U34(tt,N)) -> mark(N)
active(U341(tt,N,XS)) -> mark(U342(isNaturalKind(N),N,XS))
active(U342(tt,N,XS)) -> mark(U343(isLNat(XS),N,XS))
active(U343(tt,N,XS)) -> mark(U344(isLNatKind(XS),N,XS))
active(U344(tt,N,XS)) -> mark(fst(splitAt(N,XS)))
active(U41(tt,V1,V2)) -> mark(U42(isNaturalKind(V1),V1,V2))
active(U42(tt,V1,V2)) -> mark(U43(isLNatKind(V2),V1,V2))
active(U43(tt,V1,V2)) -> mark(U44(isLNatKind(V2),V1,V2))
active(U44(tt,V1,V2)) -> mark(U45(isNatural(V1),V2))
active(U45(tt,V2)) -> mark(U46(isLNat(V2)))
active(U46(tt)) -> mark(tt)
active(U51(tt,V1,V2)) -> mark(U52(isNaturalKind(V1),V1,V2))
active(U52(tt,V1,V2)) -> mark(U53(isLNatKind(V2),V1,V2))
active(U53(tt,V1,V2)) -> mark(U54(isLNatKind(V2),V1,V2))
active(U54(tt,V1,V2)) -> mark(U55(isNatural(V1),V2))
active(U55(tt,V2)) -> mark(U56(isLNat(V2)))
active(U56(tt)) -> mark(tt)
active(U61(tt,V1)) -> mark(U62(isPLNatKind(V1),V1))
active(U62(tt,V1)) -> mark(U63(isPLNat(V1)))
active(U63(tt)) -> mark(tt)
active(U71(tt,V1)) -> mark(U72(isNaturalKind(V1),V1))
active(U72(tt,V1)) -> mark(U73(isNatural(V1)))
active(U73(tt)) -> mark(tt)
active(U81(tt,V1)) -> mark(U82(isPLNatKind(V1),V1))
active(U82(tt,V1)) -> mark(U83(isPLNat(V1)))
active(U83(tt)) -> mark(tt)
active(U91(tt,V1)) -> mark(U92(isLNatKind(V1),V1))
active(U92(tt,V1)) -> mark(U93(isLNat(V1)))
active(U93(tt)) -> mark(tt)
active(afterNth(N,XS)) -> mark(U11(isNatural(N),N,XS))
active(fst(pair(X,Y))) -> mark(U21(isLNat(X),X,Y))
active(head(cons(N,XS))) -> mark(U31(isNatural(N),N,XS))
active(isLNat(nil)) -> mark(tt)
active(isLNat(afterNth(V1,V2))) -> mark(U41(isNaturalKind(V1),V1,V2))
active(isLNat(cons(V1,V2))) -> mark(U51(isNaturalKind(V1),V1,V2))
active(isLNat(fst(V1))) -> mark(U61(isPLNatKind(V1),V1))
active(isLNat(natsFrom(V1))) -> mark(U71(isNaturalKind(V1),V1))
active(isLNat(snd(V1))) -> mark(U81(isPLNatKind(V1),V1))
active(isLNat(tail(V1))) -> mark(U91(isLNatKind(V1),V1))
active(isLNat(take(V1,V2))) -> mark(U101(isNaturalKind(V1),V1,V2))
active(isLNatKind(nil)) -> mark(tt)
active(isLNatKind(afterNth(V1,V2))) -> mark(U111(isNaturalKind(V1),V2))
active(isLNatKind(cons(V1,V2))) -> mark(U121(isNaturalKind(V1),V2))
active(isLNatKind(fst(V1))) -> mark(U131(isPLNatKind(V1)))
active(isLNatKind(natsFrom(V1))) -> mark(U141(isNaturalKind(V1)))
active(isLNatKind(snd(V1))) -> mark(U151(isPLNatKind(V1)))
active(isLNatKind(tail(V1))) -> mark(U161(isLNatKind(V1)))
active(isLNatKind(take(V1,V2))) -> mark(U171(isNaturalKind(V1),V2))
active(isNatural(0)) -> mark(tt)
active(isNatural(head(V1))) -> mark(U181(isLNatKind(V1),V1))
active(isNatural(s(V1))) -> mark(U191(isNaturalKind(V1),V1))
active(isNatural(sel(V1,V2))) -> mark(U201(isNaturalKind(V1),V1,V2))
active(isNaturalKind(0)) -> mark(tt)
active(isNaturalKind(head(V1))) -> mark(U211(isLNatKind(V1)))
active(isNaturalKind(s(V1))) -> mark(U221(isNaturalKind(V1)))
active(isNaturalKind(sel(V1,V2))) -> mark(U231(isNaturalKind(V1),V2))
active(isPLNat(pair(V1,V2))) -> mark(U241(isLNatKind(V1),V1,V2))
active(isPLNat(splitAt(V1,V2))) -> mark(U251(isNaturalKind(V1),V1,V2))
active(isPLNatKind(pair(V1,V2))) -> mark(U261(isLNatKind(V1),V2))
active(isPLNatKind(splitAt(V1,V2))) -> mark(U271(isNaturalKind(V1),V2))
active(natsFrom(N)) -> mark(U281(isNatural(N),N))
active(sel(N,XS)) -> mark(U291(isNatural(N),N,XS))
active(snd(pair(X,Y))) -> mark(U301(isLNat(X),X,Y))
active(splitAt(0,XS)) -> mark(U311(isLNat(XS),XS))
active(splitAt(s(N),cons(X,XS))) -> mark(U321(isNatural(N),N,X,XS))
active(tail(cons(N,XS))) -> mark(U331(isNatural(N),N,XS))
active(take(N,XS)) -> mark(U341(isNatural(N),N,XS))
mark(U101(X1,X2,X3)) -> active(U101(mark(X1),X2,X3))
mark(tt) -> active(tt)
mark(U102(X1,X2,X3)) -> active(U102(mark(X1),X2,X3))
mark(isNaturalKind(X)) -> active(isNaturalKind(X))
mark(U103(X1,X2,X3)) -> active(U103(mark(X1),X2,X3))
mark(isLNatKind(X)) -> active(isLNatKind(X))
mark(U104(X1,X2,X3)) -> active(U104(mark(X1),X2,X3))
mark(U105(X1,X2)) -> active(U105(mark(X1),X2))
mark(isNatural(X)) -> active(isNatural(X))
mark(U106(X)) -> active(U106(mark(X)))
mark(isLNat(X)) -> active(isLNat(X))
mark(U11(X1,X2,X3)) -> active(U11(mark(X1),X2,X3))
mark(U12(X1,X2,X3)) -> active(U12(mark(X1),X2,X3))
mark(U111(X1,X2)) -> active(U111(mark(X1),X2))
mark(U112(X)) -> active(U112(mark(X)))
mark(U13(X1,X2,X3)) -> active(U13(mark(X1),X2,X3))
mark(U121(X1,X2)) -> active(U121(mark(X1),X2))
mark(U122(X)) -> active(U122(mark(X)))
mark(U14(X1,X2,X3)) -> active(U14(mark(X1),X2,X3))
mark(U131(X)) -> active(U131(mark(X)))
mark(snd(X)) -> active(snd(mark(X)))
mark(splitAt(X1,X2)) -> active(splitAt(mark(X1),mark(X2)))
mark(U141(X)) -> active(U141(mark(X)))
mark(U151(X)) -> active(U151(mark(X)))
mark(U161(X)) -> active(U161(mark(X)))
mark(U171(X1,X2)) -> active(U171(mark(X1),X2))
mark(U172(X)) -> active(U172(mark(X)))
mark(U181(X1,X2)) -> active(U181(mark(X1),X2))
mark(U182(X1,X2)) -> active(U182(mark(X1),X2))
mark(U183(X)) -> active(U183(mark(X)))
mark(U191(X1,X2)) -> active(U191(mark(X1),X2))
mark(U192(X1,X2)) -> active(U192(mark(X1),X2))
mark(U193(X)) -> active(U193(mark(X)))
mark(U201(X1,X2,X3)) -> active(U201(mark(X1),X2,X3))
mark(U202(X1,X2,X3)) -> active(U202(mark(X1),X2,X3))
mark(U203(X1,X2,X3)) -> active(U203(mark(X1),X2,X3))
mark(U204(X1,X2,X3)) -> active(U204(mark(X1),X2,X3))
mark(U205(X1,X2)) -> active(U205(mark(X1),X2))
mark(U206(X)) -> active(U206(mark(X)))
mark(U21(X1,X2,X3)) -> active(U21(mark(X1),X2,X3))
mark(U22(X1,X2,X3)) -> active(U22(mark(X1),X2,X3))
mark(U211(X)) -> active(U211(mark(X)))
mark(U23(X1,X2,X3)) -> active(U23(mark(X1),X2,X3))
mark(U221(X)) -> active(U221(mark(X)))
mark(U24(X1,X2)) -> active(U24(mark(X1),X2))
mark(U231(X1,X2)) -> active(U231(mark(X1),X2))
mark(U232(X)) -> active(U232(mark(X)))
mark(U241(X1,X2,X3)) -> active(U241(mark(X1),X2,X3))
mark(U242(X1,X2,X3)) -> active(U242(mark(X1),X2,X3))
mark(U243(X1,X2,X3)) -> active(U243(mark(X1),X2,X3))
mark(U244(X1,X2,X3)) -> active(U244(mark(X1),X2,X3))
mark(U245(X1,X2)) -> active(U245(mark(X1),X2))
mark(U246(X)) -> active(U246(mark(X)))
mark(U251(X1,X2,X3)) -> active(U251(mark(X1),X2,X3))
mark(U252(X1,X2,X3)) -> active(U252(mark(X1),X2,X3))
mark(U253(X1,X2,X3)) -> active(U253(mark(X1),X2,X3))
mark(U254(X1,X2,X3)) -> active(U254(mark(X1),X2,X3))
mark(U255(X1,X2)) -> active(U255(mark(X1),X2))
mark(U256(X)) -> active(U256(mark(X)))
mark(U261(X1,X2)) -> active(U261(mark(X1),X2))
mark(U262(X)) -> active(U262(mark(X)))
mark(U271(X1,X2)) -> active(U271(mark(X1),X2))
mark(U272(X)) -> active(U272(mark(X)))
mark(U281(X1,X2)) -> active(U281(mark(X1),X2))
mark(U282(X1,X2)) -> active(U282(mark(X1),X2))
mark(cons(X1,X2)) -> active(cons(mark(X1),X2))
mark(natsFrom(X)) -> active(natsFrom(mark(X)))
mark(s(X)) -> active(s(mark(X)))
mark(U291(X1,X2,X3)) -> active(U291(mark(X1),X2,X3))
mark(U292(X1,X2,X3)) -> active(U292(mark(X1),X2,X3))
mark(U293(X1,X2,X3)) -> active(U293(mark(X1),X2,X3))
mark(U294(X1,X2,X3)) -> active(U294(mark(X1),X2,X3))
mark(head(X)) -> active(head(mark(X)))
mark(afterNth(X1,X2)) -> active(afterNth(mark(X1),mark(X2)))
mark(U301(X1,X2,X3)) -> active(U301(mark(X1),X2,X3))
mark(U302(X1,X2)) -> active(U302(mark(X1),X2))
mark(U303(X1,X2)) -> active(U303(mark(X1),X2))
mark(U304(X1,X2)) -> active(U304(mark(X1),X2))
mark(U31(X1,X2,X3)) -> active(U31(mark(X1),X2,X3))
mark(U32(X1,X2,X3)) -> active(U32(mark(X1),X2,X3))
mark(U311(X1,X2)) -> active(U311(mark(X1),X2))
mark(U312(X1,X2)) -> active(U312(mark(X1),X2))
mark(pair(X1,X2)) -> active(pair(mark(X1),mark(X2)))
mark(nil) -> active(nil)
mark(U33(X1,X2,X3)) -> active(U33(mark(X1),X2,X3))
mark(U321(X1,X2,X3,X4)) -> active(U321(mark(X1),X2,X3,X4))
mark(U322(X1,X2,X3,X4)) -> active(U322(mark(X1),X2,X3,X4))
mark(U323(X1,X2,X3,X4)) -> active(U323(mark(X1),X2,X3,X4))
mark(U324(X1,X2,X3,X4)) -> active(U324(mark(X1),X2,X3,X4))
mark(U325(X1,X2,X3,X4)) -> active(U325(mark(X1),X2,X3,X4))
mark(U326(X1,X2,X3,X4)) -> active(U326(mark(X1),X2,X3,X4))
mark(U327(X1,X2)) -> active(U327(mark(X1),X2))
mark(U34(X1,X2)) -> active(U34(mark(X1),X2))
mark(U331(X1,X2,X3)) -> active(U331(mark(X1),X2,X3))
mark(U332(X1,X2)) -> active(U332(mark(X1),X2))
mark(U333(X1,X2)) -> active(U333(mark(X1),X2))
mark(U334(X1,X2)) -> active(U334(mark(X1),X2))
mark(U341(X1,X2,X3)) -> active(U341(mark(X1),X2,X3))
mark(U342(X1,X2,X3)) -> active(U342(mark(X1),X2,X3))
mark(U343(X1,X2,X3)) -> active(U343(mark(X1),X2,X3))
mark(U344(X1,X2,X3)) -> active(U344(mark(X1),X2,X3))
mark(fst(X)) -> active(fst(mark(X)))
mark(U41(X1,X2,X3)) -> active(U41(mark(X1),X2,X3))
mark(U42(X1,X2,X3)) -> active(U42(mark(X1),X2,X3))
mark(U43(X1,X2,X3)) -> active(U43(mark(X1),X2,X3))
mark(U44(X1,X2,X3)) -> active(U44(mark(X1),X2,X3))
mark(U45(X1,X2)) -> active(U45(mark(X1),X2))
mark(U46(X)) -> active(U46(mark(X)))
mark(U51(X1,X2,X3)) -> active(U51(mark(X1),X2,X3))
mark(U52(X1,X2,X3)) -> active(U52(mark(X1),X2,X3))
mark(U53(X1,X2,X3)) -> active(U53(mark(X1),X2,X3))
mark(U54(X1,X2,X3)) -> active(U54(mark(X1),X2,X3))
mark(U55(X1,X2)) -> active(U55(mark(X1),X2))
mark(U56(X)) -> active(U56(mark(X)))
mark(U61(X1,X2)) -> active(U61(mark(X1),X2))
mark(U62(X1,X2)) -> active(U62(mark(X1),X2))
mark(isPLNatKind(X)) -> active(isPLNatKind(X))
mark(U63(X)) -> active(U63(mark(X)))
mark(isPLNat(X)) -> active(isPLNat(X))
mark(U71(X1,X2)) -> active(U71(mark(X1),X2))
mark(U72(X1,X2)) -> active(U72(mark(X1),X2))
mark(U73(X)) -> active(U73(mark(X)))
mark(U81(X1,X2)) -> active(U81(mark(X1),X2))
mark(U82(X1,X2)) -> active(U82(mark(X1),X2))
mark(U83(X)) -> active(U83(mark(X)))
mark(U91(X1,X2)) -> active(U91(mark(X1),X2))
mark(U92(X1,X2)) -> active(U92(mark(X1),X2))
mark(U93(X)) -> active(U93(mark(X)))
mark(tail(X)) -> active(tail(mark(X)))
mark(take(X1,X2)) -> active(take(mark(X1),mark(X2)))
mark(0) -> active(0)
mark(sel(X1,X2)) -> active(sel(mark(X1),mark(X2)))
U101(mark(X1),X2,X3) -> U101(X1,X2,X3)
U101(X1,mark(X2),X3) -> U101(X1,X2,X3)
U101(X1,X2,mark(X3)) -> U101(X1,X2,X3)
U101(active(X1),X2,X3) -> U101(X1,X2,X3)
U101(X1,active(X2),X3) -> U101(X1,X2,X3)
U101(X1,X2,active(X3)) -> U101(X1,X2,X3)
U102(mark(X1),X2,X3) -> U102(X1,X2,X3)
U102(X1,mark(X2),X3) -> U102(X1,X2,X3)
U102(X1,X2,mark(X3)) -> U102(X1,X2,X3)
U102(active(X1),X2,X3) -> U102(X1,X2,X3)
U102(X1,active(X2),X3) -> U102(X1,X2,X3)
U102(X1,X2,active(X3)) -> U102(X1,X2,X3)
isNaturalKind(mark(X)) -> isNaturalKind(X)
isNaturalKind(active(X)) -> isNaturalKind(X)
U103(mark(X1),X2,X3) -> U103(X1,X2,X3)
U103(X1,mark(X2),X3) -> U103(X1,X2,X3)
U103(X1,X2,mark(X3)) -> U103(X1,X2,X3)
U103(active(X1),X2,X3) -> U103(X1,X2,X3)
U103(X1,active(X2),X3) -> U103(X1,X2,X3)
U103(X1,X2,active(X3)) -> U103(X1,X2,X3)
isLNatKind(mark(X)) -> isLNatKind(X)
isLNatKind(active(X)) -> isLNatKind(X)
U104(mark(X1),X2,X3) -> U104(X1,X2,X3)
U104(X1,mark(X2),X3) -> U104(X1,X2,X3)
U104(X1,X2,mark(X3)) -> U104(X1,X2,X3)
U104(active(X1),X2,X3) -> U104(X1,X2,X3)
U104(X1,active(X2),X3) -> U104(X1,X2,X3)
U104(X1,X2,active(X3)) -> U104(X1,X2,X3)
U105(mark(X1),X2) -> U105(X1,X2)
U105(X1,mark(X2)) -> U105(X1,X2)
U105(active(X1),X2) -> U105(X1,X2)
U105(X1,active(X2)) -> U105(X1,X2)
isNatural(mark(X)) -> isNatural(X)
isNatural(active(X)) -> isNatural(X)
U106(mark(X)) -> U106(X)
U106(active(X)) -> U106(X)
isLNat(mark(X)) -> isLNat(X)
isLNat(active(X)) -> isLNat(X)
U11(mark(X1),X2,X3) -> U11(X1,X2,X3)
U11(X1,mark(X2),X3) -> U11(X1,X2,X3)
U11(X1,X2,mark(X3)) -> U11(X1,X2,X3)
U11(active(X1),X2,X3) -> U11(X1,X2,X3)
U11(X1,active(X2),X3) -> U11(X1,X2,X3)
U11(X1,X2,active(X3)) -> U11(X1,X2,X3)
U12(mark(X1),X2,X3) -> U12(X1,X2,X3)
U12(X1,mark(X2),X3) -> U12(X1,X2,X3)
U12(X1,X2,mark(X3)) -> U12(X1,X2,X3)
U12(active(X1),X2,X3) -> U12(X1,X2,X3)
U12(X1,active(X2),X3) -> U12(X1,X2,X3)
U12(X1,X2,active(X3)) -> U12(X1,X2,X3)
U111(mark(X1),X2) -> U111(X1,X2)
U111(X1,mark(X2)) -> U111(X1,X2)
U111(active(X1),X2) -> U111(X1,X2)
U111(X1,active(X2)) -> U111(X1,X2)
U112(mark(X)) -> U112(X)
U112(active(X)) -> U112(X)
U13(mark(X1),X2,X3) -> U13(X1,X2,X3)
U13(X1,mark(X2),X3) -> U13(X1,X2,X3)
U13(X1,X2,mark(X3)) -> U13(X1,X2,X3)
U13(active(X1),X2,X3) -> U13(X1,X2,X3)
U13(X1,active(X2),X3) -> U13(X1,X2,X3)
U13(X1,X2,active(X3)) -> U13(X1,X2,X3)
U121(mark(X1),X2) -> U121(X1,X2)
U121(X1,mark(X2)) -> U121(X1,X2)
U121(active(X1),X2) -> U121(X1,X2)
U121(X1,active(X2)) -> U121(X1,X2)
U122(mark(X)) -> U122(X)
U122(active(X)) -> U122(X)
U14(mark(X1),X2,X3) -> U14(X1,X2,X3)
U14(X1,mark(X2),X3) -> U14(X1,X2,X3)
U14(X1,X2,mark(X3)) -> U14(X1,X2,X3)
U14(active(X1),X2,X3) -> U14(X1,X2,X3)
U14(X1,active(X2),X3) -> U14(X1,X2,X3)
U14(X1,X2,active(X3)) -> U14(X1,X2,X3)
U131(mark(X)) -> U131(X)
U131(active(X)) -> U131(X)
snd(mark(X)) -> snd(X)
snd(active(X)) -> snd(X)
splitAt(mark(X1),X2) -> splitAt(X1,X2)
splitAt(X1,mark(X2)) -> splitAt(X1,X2)
splitAt(active(X1),X2) -> splitAt(X1,X2)
splitAt(X1,active(X2)) -> splitAt(X1,X2)
U141(mark(X)) -> U141(X)
U141(active(X)) -> U141(X)
U151(mark(X)) -> U151(X)
U151(active(X)) -> U151(X)
U161(mark(X)) -> U161(X)
U161(active(X)) -> U161(X)
U171(mark(X1),X2) -> U171(X1,X2)
U171(X1,mark(X2)) -> U171(X1,X2)
U171(active(X1),X2) -> U171(X1,X2)
U171(X1,active(X2)) -> U171(X1,X2)
U172(mark(X)) -> U172(X)
U172(active(X)) -> U172(X)
U181(mark(X1),X2) -> U181(X1,X2)
U181(X1,mark(X2)) -> U181(X1,X2)
U181(active(X1),X2) -> U181(X1,X2)
U181(X1,active(X2)) -> U181(X1,X2)
U182(mark(X1),X2) -> U182(X1,X2)
U182(X1,mark(X2)) -> U182(X1,X2)
U182(active(X1),X2) -> U182(X1,X2)
U182(X1,active(X2)) -> U182(X1,X2)
U183(mark(X)) -> U183(X)
U183(active(X)) -> U183(X)
U191(mark(X1),X2) -> U191(X1,X2)
U191(X1,mark(X2)) -> U191(X1,X2)
U191(active(X1),X2) -> U191(X1,X2)
U191(X1,active(X2)) -> U191(X1,X2)
U192(mark(X1),X2) -> U192(X1,X2)
U192(X1,mark(X2)) -> U192(X1,X2)
U192(active(X1),X2) -> U192(X1,X2)
U192(X1,active(X2)) -> U192(X1,X2)
U193(mark(X)) -> U193(X)
U193(active(X)) -> U193(X)
U201(mark(X1),X2,X3) -> U201(X1,X2,X3)
U201(X1,mark(X2),X3) -> U201(X1,X2,X3)
U201(X1,X2,mark(X3)) -> U201(X1,X2,X3)
U201(active(X1),X2,X3) -> U201(X1,X2,X3)
U201(X1,active(X2),X3) -> U201(X1,X2,X3)
U201(X1,X2,active(X3)) -> U201(X1,X2,X3)
U202(mark(X1),X2,X3) -> U202(X1,X2,X3)
U202(X1,mark(X2),X3) -> U202(X1,X2,X3)
U202(X1,X2,mark(X3)) -> U202(X1,X2,X3)
U202(active(X1),X2,X3) -> U202(X1,X2,X3)
U202(X1,active(X2),X3) -> U202(X1,X2,X3)
U202(X1,X2,active(X3)) -> U202(X1,X2,X3)
U203(mark(X1),X2,X3) -> U203(X1,X2,X3)
U203(X1,mark(X2),X3) -> U203(X1,X2,X3)
U203(X1,X2,mark(X3)) -> U203(X1,X2,X3)
U203(active(X1),X2,X3) -> U203(X1,X2,X3)
U203(X1,active(X2),X3) -> U203(X1,X2,X3)
U203(X1,X2,active(X3)) -> U203(X1,X2,X3)
U204(mark(X1),X2,X3) -> U204(X1,X2,X3)
U204(X1,mark(X2),X3) -> U204(X1,X2,X3)
U204(X1,X2,mark(X3)) -> U204(X1,X2,X3)
U204(active(X1),X2,X3) -> U204(X1,X2,X3)
U204(X1,active(X2),X3) -> U204(X1,X2,X3)
U204(X1,X2,active(X3)) -> U204(X1,X2,X3)
U205(mark(X1),X2) -> U205(X1,X2)
U205(X1,mark(X2)) -> U205(X1,X2)
U205(active(X1),X2) -> U205(X1,X2)
U205(X1,active(X2)) -> U205(X1,X2)
U206(mark(X)) -> U206(X)
U206(active(X)) -> U206(X)
U21(mark(X1),X2,X3) -> U21(X1,X2,X3)
U21(X1,mark(X2),X3) -> U21(X1,X2,X3)
U21(X1,X2,mark(X3)) -> U21(X1,X2,X3)
U21(active(X1),X2,X3) -> U21(X1,X2,X3)
U21(X1,active(X2),X3) -> U21(X1,X2,X3)
U21(X1,X2,active(X3)) -> U21(X1,X2,X3)
U22(mark(X1),X2,X3) -> U22(X1,X2,X3)
U22(X1,mark(X2),X3) -> U22(X1,X2,X3)
U22(X1,X2,mark(X3)) -> U22(X1,X2,X3)
U22(active(X1),X2,X3) -> U22(X1,X2,X3)
U22(X1,active(X2),X3) -> U22(X1,X2,X3)
U22(X1,X2,active(X3)) -> U22(X1,X2,X3)
U211(mark(X)) -> U211(X)
U211(active(X)) -> U211(X)
U23(mark(X1),X2,X3) -> U23(X1,X2,X3)
U23(X1,mark(X2),X3) -> U23(X1,X2,X3)
U23(X1,X2,mark(X3)) -> U23(X1,X2,X3)
U23(active(X1),X2,X3) -> U23(X1,X2,X3)
U23(X1,active(X2),X3) -> U23(X1,X2,X3)
U23(X1,X2,active(X3)) -> U23(X1,X2,X3)
U221(mark(X)) -> U221(X)
U221(active(X)) -> U221(X)
U24(mark(X1),X2) -> U24(X1,X2)
U24(X1,mark(X2)) -> U24(X1,X2)
U24(active(X1),X2) -> U24(X1,X2)
U24(X1,active(X2)) -> U24(X1,X2)
U231(mark(X1),X2) -> U231(X1,X2)
U231(X1,mark(X2)) -> U231(X1,X2)
U231(active(X1),X2) -> U231(X1,X2)
U231(X1,active(X2)) -> U231(X1,X2)
U232(mark(X)) -> U232(X)
U232(active(X)) -> U232(X)
U241(mark(X1),X2,X3) -> U241(X1,X2,X3)
U241(X1,mark(X2),X3) -> U241(X1,X2,X3)
U241(X1,X2,mark(X3)) -> U241(X1,X2,X3)
U241(active(X1),X2,X3) -> U241(X1,X2,X3)
U241(X1,active(X2),X3) -> U241(X1,X2,X3)
U241(X1,X2,active(X3)) -> U241(X1,X2,X3)
U242(mark(X1),X2,X3) -> U242(X1,X2,X3)
U242(X1,mark(X2),X3) -> U242(X1,X2,X3)
U242(X1,X2,mark(X3)) -> U242(X1,X2,X3)
U242(active(X1),X2,X3) -> U242(X1,X2,X3)
U242(X1,active(X2),X3) -> U242(X1,X2,X3)
U242(X1,X2,active(X3)) -> U242(X1,X2,X3)
U243(mark(X1),X2,X3) -> U243(X1,X2,X3)
U243(X1,mark(X2),X3) -> U243(X1,X2,X3)
U243(X1,X2,mark(X3)) -> U243(X1,X2,X3)
U243(active(X1),X2,X3) -> U243(X1,X2,X3)
U243(X1,active(X2),X3) -> U243(X1,X2,X3)
U243(X1,X2,active(X3)) -> U243(X1,X2,X3)
U244(mark(X1),X2,X3) -> U244(X1,X2,X3)
U244(X1,mark(X2),X3) -> U244(X1,X2,X3)
U244(X1,X2,mark(X3)) -> U244(X1,X2,X3)
U244(active(X1),X2,X3) -> U244(X1,X2,X3)
U244(X1,active(X2),X3) -> U244(X1,X2,X3)
U244(X1,X2,active(X3)) -> U244(X1,X2,X3)
U245(mark(X1),X2) -> U245(X1,X2)
U245(X1,mark(X2)) -> U245(X1,X2)
U245(active(X1),X2) -> U245(X1,X2)
U245(X1,active(X2)) -> U245(X1,X2)
U246(mark(X)) -> U246(X)
U246(active(X)) -> U246(X)
U251(mark(X1),X2,X3) -> U251(X1,X2,X3)
U251(X1,mark(X2),X3) -> U251(X1,X2,X3)
U251(X1,X2,mark(X3)) -> U251(X1,X2,X3)
U251(active(X1),X2,X3) -> U251(X1,X2,X3)
U251(X1,active(X2),X3) -> U251(X1,X2,X3)
U251(X1,X2,active(X3)) -> U251(X1,X2,X3)
U252(mark(X1),X2,X3) -> U252(X1,X2,X3)
U252(X1,mark(X2),X3) -> U252(X1,X2,X3)
U252(X1,X2,mark(X3)) -> U252(X1,X2,X3)
U252(active(X1),X2,X3) -> U252(X1,X2,X3)
U252(X1,active(X2),X3) -> U252(X1,X2,X3)
U252(X1,X2,active(X3)) -> U252(X1,X2,X3)
U253(mark(X1),X2,X3) -> U253(X1,X2,X3)
U253(X1,mark(X2),X3) -> U253(X1,X2,X3)
U253(X1,X2,mark(X3)) -> U253(X1,X2,X3)
U253(active(X1),X2,X3) -> U253(X1,X2,X3)
U253(X1,active(X2),X3) -> U253(X1,X2,X3)
U253(X1,X2,active(X3)) -> U253(X1,X2,X3)
U254(mark(X1),X2,X3) -> U254(X1,X2,X3)
U254(X1,mark(X2),X3) -> U254(X1,X2,X3)
U254(X1,X2,mark(X3)) -> U254(X1,X2,X3)
U254(active(X1),X2,X3) -> U254(X1,X2,X3)
U254(X1,active(X2),X3) -> U254(X1,X2,X3)
U254(X1,X2,active(X3)) -> U254(X1,X2,X3)
U255(mark(X1),X2) -> U255(X1,X2)
U255(X1,mark(X2)) -> U255(X1,X2)
U255(active(X1),X2) -> U255(X1,X2)
U255(X1,active(X2)) -> U255(X1,X2)
U256(mark(X)) -> U256(X)
U256(active(X)) -> U256(X)
U261(mark(X1),X2) -> U261(X1,X2)
U261(X1,mark(X2)) -> U261(X1,X2)
U261(active(X1),X2) -> U261(X1,X2)
U261(X1,active(X2)) -> U261(X1,X2)
U262(mark(X)) -> U262(X)
U262(active(X)) -> U262(X)
U271(mark(X1),X2) -> U271(X1,X2)
U271(X1,mark(X2)) -> U271(X1,X2)
U271(active(X1),X2) -> U271(X1,X2)
U271(X1,active(X2)) -> U271(X1,X2)
U272(mark(X)) -> U272(X)
U272(active(X)) -> U272(X)
U281(mark(X1),X2) -> U281(X1,X2)
U281(X1,mark(X2)) -> U281(X1,X2)
U281(active(X1),X2) -> U281(X1,X2)
U281(X1,active(X2)) -> U281(X1,X2)
U282(mark(X1),X2) -> U282(X1,X2)
U282(X1,mark(X2)) -> U282(X1,X2)
U282(active(X1),X2) -> U282(X1,X2)
U282(X1,active(X2)) -> U282(X1,X2)
cons(mark(X1),X2) -> cons(X1,X2)
cons(X1,mark(X2)) -> cons(X1,X2)
cons(active(X1),X2) -> cons(X1,X2)
cons(X1,active(X2)) -> cons(X1,X2)
natsFrom(mark(X)) -> natsFrom(X)
natsFrom(active(X)) -> natsFrom(X)
s(mark(X)) -> s(X)
s(active(X)) -> s(X)
U291(mark(X1),X2,X3) -> U291(X1,X2,X3)
U291(X1,mark(X2),X3) -> U291(X1,X2,X3)
U291(X1,X2,mark(X3)) -> U291(X1,X2,X3)
U291(active(X1),X2,X3) -> U291(X1,X2,X3)
U291(X1,active(X2),X3) -> U291(X1,X2,X3)
U291(X1,X2,active(X3)) -> U291(X1,X2,X3)
U292(mark(X1),X2,X3) -> U292(X1,X2,X3)
U292(X1,mark(X2),X3) -> U292(X1,X2,X3)
U292(X1,X2,mark(X3)) -> U292(X1,X2,X3)
U292(active(X1),X2,X3) -> U292(X1,X2,X3)
U292(X1,active(X2),X3) -> U292(X1,X2,X3)
U292(X1,X2,active(X3)) -> U292(X1,X2,X3)
U293(mark(X1),X2,X3) -> U293(X1,X2,X3)
U293(X1,mark(X2),X3) -> U293(X1,X2,X3)
U293(X1,X2,mark(X3)) -> U293(X1,X2,X3)
U293(active(X1),X2,X3) -> U293(X1,X2,X3)
U293(X1,active(X2),X3) -> U293(X1,X2,X3)
U293(X1,X2,active(X3)) -> U293(X1,X2,X3)
U294(mark(X1),X2,X3) -> U294(X1,X2,X3)
U294(X1,mark(X2),X3) -> U294(X1,X2,X3)
U294(X1,X2,mark(X3)) -> U294(X1,X2,X3)
U294(active(X1),X2,X3) -> U294(X1,X2,X3)
U294(X1,active(X2),X3) -> U294(X1,X2,X3)
U294(X1,X2,active(X3)) -> U294(X1,X2,X3)
head(mark(X)) -> head(X)
head(active(X)) -> head(X)
afterNth(mark(X1),X2) -> afterNth(X1,X2)
afterNth(X1,mark(X2)) -> afterNth(X1,X2)
afterNth(active(X1),X2) -> afterNth(X1,X2)
afterNth(X1,active(X2)) -> afterNth(X1,X2)
U301(mark(X1),X2,X3) -> U301(X1,X2,X3)
U301(X1,mark(X2),X3) -> U301(X1,X2,X3)
U301(X1,X2,mark(X3)) -> U301(X1,X2,X3)
U301(active(X1),X2,X3) -> U301(X1,X2,X3)
U301(X1,active(X2),X3) -> U301(X1,X2,X3)
U301(X1,X2,active(X3)) -> U301(X1,X2,X3)
U302(mark(X1),X2) -> U302(X1,X2)
U302(X1,mark(X2)) -> U302(X1,X2)
U302(active(X1),X2) -> U302(X1,X2)
U302(X1,active(X2)) -> U302(X1,X2)
U303(mark(X1),X2) -> U303(X1,X2)
U303(X1,mark(X2)) -> U303(X1,X2)
U303(active(X1),X2) -> U303(X1,X2)
U303(X1,active(X2)) -> U303(X1,X2)
U304(mark(X1),X2) -> U304(X1,X2)
U304(X1,mark(X2)) -> U304(X1,X2)
U304(active(X1),X2) -> U304(X1,X2)
U304(X1,active(X2)) -> U304(X1,X2)
U31(mark(X1),X2,X3) -> U31(X1,X2,X3)
U31(X1,mark(X2),X3) -> U31(X1,X2,X3)
U31(X1,X2,mark(X3)) -> U31(X1,X2,X3)
U31(active(X1),X2,X3) -> U31(X1,X2,X3)
U31(X1,active(X2),X3) -> U31(X1,X2,X3)
U31(X1,X2,active(X3)) -> U31(X1,X2,X3)
U32(mark(X1),X2,X3) -> U32(X1,X2,X3)
U32(X1,mark(X2),X3) -> U32(X1,X2,X3)
U32(X1,X2,mark(X3)) -> U32(X1,X2,X3)
U32(active(X1),X2,X3) -> U32(X1,X2,X3)
U32(X1,active(X2),X3) -> U32(X1,X2,X3)
U32(X1,X2,active(X3)) -> U32(X1,X2,X3)
U311(mark(X1),X2) -> U311(X1,X2)
U311(X1,mark(X2)) -> U311(X1,X2)
U311(active(X1),X2) -> U311(X1,X2)
U311(X1,active(X2)) -> U311(X1,X2)
U312(mark(X1),X2) -> U312(X1,X2)
U312(X1,mark(X2)) -> U312(X1,X2)
U312(active(X1),X2) -> U312(X1,X2)
U312(X1,active(X2)) -> U312(X1,X2)
pair(mark(X1),X2) -> pair(X1,X2)
pair(X1,mark(X2)) -> pair(X1,X2)
pair(active(X1),X2) -> pair(X1,X2)
pair(X1,active(X2)) -> pair(X1,X2)
U33(mark(X1),X2,X3) -> U33(X1,X2,X3)
U33(X1,mark(X2),X3) -> U33(X1,X2,X3)
U33(X1,X2,mark(X3)) -> U33(X1,X2,X3)
U33(active(X1),X2,X3) -> U33(X1,X2,X3)
U33(X1,active(X2),X3) -> U33(X1,X2,X3)
U33(X1,X2,active(X3)) -> U33(X1,X2,X3)
U321(mark(X1),X2,X3,X4) -> U321(X1,X2,X3,X4)
U321(X1,mark(X2),X3,X4) -> U321(X1,X2,X3,X4)
U321(X1,X2,mark(X3),X4) -> U321(X1,X2,X3,X4)
U321(X1,X2,X3,mark(X4)) -> U321(X1,X2,X3,X4)
U321(active(X1),X2,X3,X4) -> U321(X1,X2,X3,X4)
U321(X1,active(X2),X3,X4) -> U321(X1,X2,X3,X4)
U321(X1,X2,active(X3),X4) -> U321(X1,X2,X3,X4)
U321(X1,X2,X3,active(X4)) -> U321(X1,X2,X3,X4)
U322(mark(X1),X2,X3,X4) -> U322(X1,X2,X3,X4)
U322(X1,mark(X2),X3,X4) -> U322(X1,X2,X3,X4)
U322(X1,X2,mark(X3),X4) -> U322(X1,X2,X3,X4)
U322(X1,X2,X3,mark(X4)) -> U322(X1,X2,X3,X4)
U322(active(X1),X2,X3,X4) -> U322(X1,X2,X3,X4)
U322(X1,active(X2),X3,X4) -> U322(X1,X2,X3,X4)
U322(X1,X2,active(X3),X4) -> U322(X1,X2,X3,X4)
U322(X1,X2,X3,active(X4)) -> U322(X1,X2,X3,X4)
U323(mark(X1),X2,X3,X4) -> U323(X1,X2,X3,X4)
U323(X1,mark(X2),X3,X4) -> U323(X1,X2,X3,X4)
U323(X1,X2,mark(X3),X4) -> U323(X1,X2,X3,X4)
U323(X1,X2,X3,mark(X4)) -> U323(X1,X2,X3,X4)
U323(active(X1),X2,X3,X4) -> U323(X1,X2,X3,X4)
U323(X1,active(X2),X3,X4) -> U323(X1,X2,X3,X4)
U323(X1,X2,active(X3),X4) -> U323(X1,X2,X3,X4)
U323(X1,X2,X3,active(X4)) -> U323(X1,X2,X3,X4)
U324(mark(X1),X2,X3,X4) -> U324(X1,X2,X3,X4)
U324(X1,mark(X2),X3,X4) -> U324(X1,X2,X3,X4)
U324(X1,X2,mark(X3),X4) -> U324(X1,X2,X3,X4)
U324(X1,X2,X3,mark(X4)) -> U324(X1,X2,X3,X4)
U324(active(X1),X2,X3,X4) -> U324(X1,X2,X3,X4)
U324(X1,active(X2),X3,X4) -> U324(X1,X2,X3,X4)
U324(X1,X2,active(X3),X4) -> U324(X1,X2,X3,X4)
U324(X1,X2,X3,active(X4)) -> U324(X1,X2,X3,X4)
U325(mark(X1),X2,X3,X4) -> U325(X1,X2,X3,X4)
U325(X1,mark(X2),X3,X4) -> U325(X1,X2,X3,X4)
U325(X1,X2,mark(X3),X4) -> U325(X1,X2,X3,X4)
U325(X1,X2,X3,mark(X4)) -> U325(X1,X2,X3,X4)
U325(active(X1),X2,X3,X4) -> U325(X1,X2,X3,X4)
U325(X1,active(X2),X3,X4) -> U325(X1,X2,X3,X4)
U325(X1,X2,active(X3),X4) -> U325(X1,X2,X3,X4)
U325(X1,X2,X3,active(X4)) -> U325(X1,X2,X3,X4)
U326(mark(X1),X2,X3,X4) -> U326(X1,X2,X3,X4)
U326(X1,mark(X2),X3,X4) -> U326(X1,X2,X3,X4)
U326(X1,X2,mark(X3),X4) -> U326(X1,X2,X3,X4)
U326(X1,X2,X3,mark(X4)) -> U326(X1,X2,X3,X4)
U326(active(X1),X2,X3,X4) -> U326(X1,X2,X3,X4)
U326(X1,active(X2),X3,X4) -> U326(X1,X2,X3,X4)
U326(X1,X2,active(X3),X4) -> U326(X1,X2,X3,X4)
U326(X1,X2,X3,active(X4)) -> U326(X1,X2,X3,X4)
U327(mark(X1),X2) -> U327(X1,X2)
U327(X1,mark(X2)) -> U327(X1,X2)
U327(active(X1),X2) -> U327(X1,X2)
U327(X1,active(X2)) -> U327(X1,X2)
U34(mark(X1),X2) -> U34(X1,X2)
U34(X1,mark(X2)) -> U34(X1,X2)
U34(active(X1),X2) -> U34(X1,X2)
U34(X1,active(X2)) -> U34(X1,X2)
U331(mark(X1),X2,X3) -> U331(X1,X2,X3)
U331(X1,mark(X2),X3) -> U331(X1,X2,X3)
U331(X1,X2,mark(X3)) -> U331(X1,X2,X3)
U331(active(X1),X2,X3) -> U331(X1,X2,X3)
U331(X1,active(X2),X3) -> U331(X1,X2,X3)
U331(X1,X2,active(X3)) -> U331(X1,X2,X3)
U332(mark(X1),X2) -> U332(X1,X2)
U332(X1,mark(X2)) -> U332(X1,X2)
U332(active(X1),X2) -> U332(X1,X2)
U332(X1,active(X2)) -> U332(X1,X2)
U333(mark(X1),X2) -> U333(X1,X2)
U333(X1,mark(X2)) -> U333(X1,X2)
U333(active(X1),X2) -> U333(X1,X2)
U333(X1,active(X2)) -> U333(X1,X2)
U334(mark(X1),X2) -> U334(X1,X2)
U334(X1,mark(X2)) -> U334(X1,X2)
U334(active(X1),X2) -> U334(X1,X2)
U334(X1,active(X2)) -> U334(X1,X2)
U341(mark(X1),X2,X3) -> U341(X1,X2,X3)
U341(X1,mark(X2),X3) -> U341(X1,X2,X3)
U341(X1,X2,mark(X3)) -> U341(X1,X2,X3)
U341(active(X1),X2,X3) -> U341(X1,X2,X3)
U341(X1,active(X2),X3) -> U341(X1,X2,X3)
U341(X1,X2,active(X3)) -> U341(X1,X2,X3)
U342(mark(X1),X2,X3) -> U342(X1,X2,X3)
U342(X1,mark(X2),X3) -> U342(X1,X2,X3)
U342(X1,X2,mark(X3)) -> U342(X1,X2,X3)
U342(active(X1),X2,X3) -> U342(X1,X2,X3)
U342(X1,active(X2),X3) -> U342(X1,X2,X3)
U342(X1,X2,active(X3)) -> U342(X1,X2,X3)
U343(mark(X1),X2,X3) -> U343(X1,X2,X3)
U343(X1,mark(X2),X3) -> U343(X1,X2,X3)
U343(X1,X2,mark(X3)) -> U343(X1,X2,X3)
U343(active(X1),X2,X3) -> U343(X1,X2,X3)
U343(X1,active(X2),X3) -> U343(X1,X2,X3)
U343(X1,X2,active(X3)) -> U343(X1,X2,X3)
U344(mark(X1),X2,X3) -> U344(X1,X2,X3)
U344(X1,mark(X2),X3) -> U344(X1,X2,X3)
U344(X1,X2,mark(X3)) -> U344(X1,X2,X3)
U344(active(X1),X2,X3) -> U344(X1,X2,X3)
U344(X1,active(X2),X3) -> U344(X1,X2,X3)
U344(X1,X2,active(X3)) -> U344(X1,X2,X3)
fst(mark(X)) -> fst(X)
fst(active(X)) -> fst(X)
U41(mark(X1),X2,X3) -> U41(X1,X2,X3)
U41(X1,mark(X2),X3) -> U41(X1,X2,X3)
U41(X1,X2,mark(X3)) -> U41(X1,X2,X3)
U41(active(X1),X2,X3) -> U41(X1,X2,X3)
U41(X1,active(X2),X3) -> U41(X1,X2,X3)
U41(X1,X2,active(X3)) -> U41(X1,X2,X3)
U42(mark(X1),X2,X3) -> U42(X1,X2,X3)
U42(X1,mark(X2),X3) -> U42(X1,X2,X3)
U42(X1,X2,mark(X3)) -> U42(X1,X2,X3)
U42(active(X1),X2,X3) -> U42(X1,X2,X3)
U42(X1,active(X2),X3) -> U42(X1,X2,X3)
U42(X1,X2,active(X3)) -> U42(X1,X2,X3)
U43(mark(X1),X2,X3) -> U43(X1,X2,X3)
U43(X1,mark(X2),X3) -> U43(X1,X2,X3)
U43(X1,X2,mark(X3)) -> U43(X1,X2,X3)
U43(active(X1),X2,X3) -> U43(X1,X2,X3)
U43(X1,active(X2),X3) -> U43(X1,X2,X3)
U43(X1,X2,active(X3)) -> U43(X1,X2,X3)
U44(mark(X1),X2,X3) -> U44(X1,X2,X3)
U44(X1,mark(X2),X3) -> U44(X1,X2,X3)
U44(X1,X2,mark(X3)) -> U44(X1,X2,X3)
U44(active(X1),X2,X3) -> U44(X1,X2,X3)
U44(X1,active(X2),X3) -> U44(X1,X2,X3)
U44(X1,X2,active(X3)) -> U44(X1,X2,X3)
U45(mark(X1),X2) -> U45(X1,X2)
U45(X1,mark(X2)) -> U45(X1,X2)
U45(active(X1),X2) -> U45(X1,X2)
U45(X1,active(X2)) -> U45(X1,X2)
U46(mark(X)) -> U46(X)
U46(active(X)) -> U46(X)
U51(mark(X1),X2,X3) -> U51(X1,X2,X3)
U51(X1,mark(X2),X3) -> U51(X1,X2,X3)
U51(X1,X2,mark(X3)) -> U51(X1,X2,X3)
U51(active(X1),X2,X3) -> U51(X1,X2,X3)
U51(X1,active(X2),X3) -> U51(X1,X2,X3)
U51(X1,X2,active(X3)) -> U51(X1,X2,X3)
U52(mark(X1),X2,X3) -> U52(X1,X2,X3)
U52(X1,mark(X2),X3) -> U52(X1,X2,X3)
U52(X1,X2,mark(X3)) -> U52(X1,X2,X3)
U52(active(X1),X2,X3) -> U52(X1,X2,X3)
U52(X1,active(X2),X3) -> U52(X1,X2,X3)
U52(X1,X2,active(X3)) -> U52(X1,X2,X3)
U53(mark(X1),X2,X3) -> U53(X1,X2,X3)
U53(X1,mark(X2),X3) -> U53(X1,X2,X3)
U53(X1,X2,mark(X3)) -> U53(X1,X2,X3)
U53(active(X1),X2,X3) -> U53(X1,X2,X3)
U53(X1,active(X2),X3) -> U53(X1,X2,X3)
U53(X1,X2,active(X3)) -> U53(X1,X2,X3)
U54(mark(X1),X2,X3) -> U54(X1,X2,X3)
U54(X1,mark(X2),X3) -> U54(X1,X2,X3)
U54(X1,X2,mark(X3)) -> U54(X1,X2,X3)
U54(active(X1),X2,X3) -> U54(X1,X2,X3)
U54(X1,active(X2),X3) -> U54(X1,X2,X3)
U54(X1,X2,active(X3)) -> U54(X1,X2,X3)
U55(mark(X1),X2) -> U55(X1,X2)
U55(X1,mark(X2)) -> U55(X1,X2)
U55(active(X1),X2) -> U55(X1,X2)
U55(X1,active(X2)) -> U55(X1,X2)
U56(mark(X)) -> U56(X)
U56(active(X)) -> U56(X)
U61(mark(X1),X2) -> U61(X1,X2)
U61(X1,mark(X2)) -> U61(X1,X2)
U61(active(X1),X2) -> U61(X1,X2)
U61(X1,active(X2)) -> U61(X1,X2)
U62(mark(X1),X2) -> U62(X1,X2)
U62(X1,mark(X2)) -> U62(X1,X2)
U62(active(X1),X2) -> U62(X1,X2)
U62(X1,active(X2)) -> U62(X1,X2)
isPLNatKind(mark(X)) -> isPLNatKind(X)
isPLNatKind(active(X)) -> isPLNatKind(X)
U63(mark(X)) -> U63(X)
U63(active(X)) -> U63(X)
isPLNat(mark(X)) -> isPLNat(X)
isPLNat(active(X)) -> isPLNat(X)
U71(mark(X1),X2) -> U71(X1,X2)
U71(X1,mark(X2)) -> U71(X1,X2)
U71(active(X1),X2) -> U71(X1,X2)
U71(X1,active(X2)) -> U71(X1,X2)
U72(mark(X1),X2) -> U72(X1,X2)
U72(X1,mark(X2)) -> U72(X1,X2)
U72(active(X1),X2) -> U72(X1,X2)
U72(X1,active(X2)) -> U72(X1,X2)
U73(mark(X)) -> U73(X)
U73(active(X)) -> U73(X)
U81(mark(X1),X2) -> U81(X1,X2)
U81(X1,mark(X2)) -> U81(X1,X2)
U81(active(X1),X2) -> U81(X1,X2)
U81(X1,active(X2)) -> U81(X1,X2)
U82(mark(X1),X2) -> U82(X1,X2)
U82(X1,mark(X2)) -> U82(X1,X2)
U82(active(X1),X2) -> U82(X1,X2)
U82(X1,active(X2)) -> U82(X1,X2)
U83(mark(X)) -> U83(X)
U83(active(X)) -> U83(X)
U91(mark(X1),X2) -> U91(X1,X2)
U91(X1,mark(X2)) -> U91(X1,X2)
U91(active(X1),X2) -> U91(X1,X2)
U91(X1,active(X2)) -> U91(X1,X2)
U92(mark(X1),X2) -> U92(X1,X2)
U92(X1,mark(X2)) -> U92(X1,X2)
U92(active(X1),X2) -> U92(X1,X2)
U92(X1,active(X2)) -> U92(X1,X2)
U93(mark(X)) -> U93(X)
U93(active(X)) -> U93(X)
tail(mark(X)) -> tail(X)
tail(active(X)) -> tail(X)
take(mark(X1),X2) -> take(X1,X2)
take(X1,mark(X2)) -> take(X1,X2)
take(active(X1),X2) -> take(X1,X2)
take(X1,active(X2)) -> take(X1,X2)
sel(mark(X1),X2) -> sel(X1,X2)
sel(X1,mark(X2)) -> sel(X1,X2)
sel(active(X1),X2) -> sel(X1,X2)
sel(X1,active(X2)) -> sel(X1,X2)
)