a__zeros
cons
0
zeros
a__U11
tt
L
s
a__length
mark
L
a__U21
tt
nil
a__U31
tt
IL
M
N
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mark
N
take
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IL
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0
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a__isNat
length
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a__isNatList
V1
a__isNat
s
V1
a__isNat
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V
a__isNatList
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zeros
tt
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cons
V1
V2
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a__isNat
V1
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V2
a__isNatList
nil
tt
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cons
V1
V2
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a__isNat
V1
isNatList
V2
a__isNatList
take
V1
V2
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a__isNat
V1
isNatIList
V2
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nil
0
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N
L
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L
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N
L
a__take
0
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IL
a__take
s
M
cons
N
IL
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a__isNatIList
IL
and
isNat
M
isNat
N
IL
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N
mark
zeros
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mark
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mark
X1
X2
mark
length
X
a__length
mark
X
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X
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X3
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X
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X
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X
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isNatIList
X
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X
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cons
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X2
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mark
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X2
mark
0
0
mark
tt
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mark
s
X
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mark
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nil
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zeros
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a__length
X
length
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U21
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and
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a__isNat
X
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a__isNatList
X
isNatList
X
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X
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X
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a__U11
tt
L
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zeros
a__zeros
a__length
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N
L
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L
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tt
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M
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length
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cons
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take
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and
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mark
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V
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V
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0
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s
M
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N
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IL
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N
IL
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N
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N
L
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X
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X
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V1
V2
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tt
IL
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N
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N
a__length
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N
L
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L
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L
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cons
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V1
V2
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V2
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cons
N
L
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L
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tt
L
mark
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length
V1
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V1
true
U21
1
1
1
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1
0
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2
1
2
0
s
1
1
0
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4
2
4
0
a__isNatIList
1
0
a__isNat
1
0
take
2
1
2
2
and
2
1
2
0
isNatIList
1
0
a__U11
2
2
0
zeros
0
14098
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4
1
2
3
4
2
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2
2
0
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1
0
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1
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1
0
mark
1
1
0
0
0
0
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2
2
0
a__zeros
0
0
a__U21
1
1
1
nil
0
1
mark
1
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0
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2
1
2
0
a__length
1
1
0
isNat
1
0
U31
4
1
2
3
4
2
a__isNatList
1
0
cons
2
1
2
0
a__take
2
1
2
2
tt
0
0
a__isNat
1
0
a__and
2
1
2
0
length
1
1
0
a__zeros
0
14098
a__length
1
1
0
a__isNat
length
V1
a__isNatList
V1
a__U11
tt
L
mark
L
a__length
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N
L
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a__isNatIList
cons
V1
V2
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V1
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V2
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s
M
cons
N
IL
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a__isNatIList
IL
and
isNat
M
isNat
N
a__length
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N
L
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L
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N
L
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tt
IL
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N
mark
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cons
V1
V2
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V1
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X
mark
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X
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X
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cons
N
L
a__and
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L
isNat
N
a__take
s
M
cons
N
IL
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a__isNatIList
IL
and
isNat
M
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N
IL
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N
a__take
0
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V
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V
a__take
s
M
cons
N
IL
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IL
mark
and
X1
X2
mark
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mark
U11
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X2
mark
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mark
length
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X
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V1
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V1
a__and
tt
X
mark
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X2
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X2
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mark
L
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V1
V2
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V1
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length
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mark
X
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take
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V2
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V1
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take
V1
V2
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V1
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mark
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X
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X
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cons
V1
V2
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a__isNat
V1
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V2
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X
a__isNatList
X
mark
U11
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X2
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mark
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X2
a__take
s
M
cons
N
IL
a__U31
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IL
and
isNat
M
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N
IL
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N
a__U31
tt
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N
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mark
N
take
M
IL
a__length
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0
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V1
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V1
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0
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a__U21
tt
nil
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N
L
a__U11
a__and
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L
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N
L
mark
length
X
a__length
mark
X
a__length
X
length
X
mark
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X
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X
mark
zeros
a__zeros
mark
s
X
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mark
X
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0
IL
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X
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X
a__zeros
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mark
U21
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X
mark
isNatIList
X
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X
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tt
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X2
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length
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X2
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mark
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take
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V2
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a__isNat
V1
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nil
tt
mark
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X4
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X2
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take
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X2
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V2
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V1
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V
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cons
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V2
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X2
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0
tt
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X2
X3
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X2
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X4
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X
U21
X
a__isNat
X
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X
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X
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X
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X2
U11
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X2
mark
cons
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X2
cons
mark
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X2
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X
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X
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tt
L
s
a__length
mark
L
a__take
s
M
cons
N
IL
a__isNatIList
IL
false
a__take
s
M
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N
IL
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a__isNatIList
IL
and
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N
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s
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cons
N
IL
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IL
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N
IL
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N
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N
mark
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0
IL
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IL
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s
V1
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a__length
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N
L
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L
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L
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L
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X
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a__isNat
length
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V2
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V1
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V2
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V2
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V
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V2
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V2
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X2
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a__U11
tt
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a__U11
tt
L
a__length
mark
L
true
U21
1
1
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1
0
U11
2
1
2
2
s
1
1
0
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4
0
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1
0
a__isNat
1
0
take
2
1
2
31742
and
2
1
2
0
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1
0
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2
2
1
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0
1
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1
2
3
4
31742
a__take
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2
0
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1
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1
0
mark
1
1
0
0
0
0
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0
0
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1
1
nil
0
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mark
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2
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2
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1
1
1
isNat
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0
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4
1
2
3
4
31742
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0
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1
2
0
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2
1
2
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tt
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2
0
length
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2
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0
1
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1
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2
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tt
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length
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X
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X
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X
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X
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L
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L
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N
L
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s
V1
a__isNat
V1
a__take
s
M
cons
N
IL
a__U31
a__and
a__isNatIList
IL
and
isNat
M
isNat
N
IL
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N
a__U31
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N
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mark
N
take
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IL
a__length
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0
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V1
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V1
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cons
0
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a__U21
tt
nil
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N
L
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L
isNat
N
L
mark
length
X
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X
a__length
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X
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tt
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V2
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V1
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nil
tt
mark
U31
X1
X2
X3
X4
a__U31
mark
X1
X2
X3
X4
mark
take
X1
X2
a__take
mark
X1
mark
X2
a__isNatIList
cons
V1
V2
a__and
a__isNat
V1
isNatIList
V2
a__isNatIList
V
a__isNatList
V
a__isNatList
cons
V1
V2
a__and
a__isNat
V1
isNatList
V2
a__and
X1
X2
and
X1
X2
a__isNat
0
tt
a__U31
X1
X2
X3
X4
U31
X1
X2
X3
X4
a__U21
X
U21
X
a__isNat
X
isNat
X
a__isNatList
X
isNatList
X
a__U11
X1
X2
U11
X1
X2
mark
cons
X1
X2
cons
mark
X1
X2
a__isNatIList
X
isNatIList
X
a__U11
tt
L
s
a__length
mark
L
a__isNat
s
V1
a__isNat
V1
mark
isNat
X
a__isNat
X
mark
s
X
mark
X
mark
isNatList
X
a__isNatList
X
mark
isNatIList
X
a__isNatIList
X
a__and
tt
X
mark
X
a__isNat
length
V1
a__isNatList
V1
mark
and
X1
X2
mark
X1
mark
and
X1
X2
a__and
mark
X1
X2
a__isNatList
take
V1
V2
a__isNat
V1
a__isNatList
take
V1
V2
a__and
a__isNat
V1
isNatIList
V2
a__isNatIList
cons
V1
V2
a__isNat
V1
a__isNatIList
cons
V1
V2
a__and
a__isNat
V1
isNatIList
V2
a__isNatIList
V
a__isNatList
V
a__isNatList
cons
V1
V2
a__isNat
V1
a__isNatList
cons
V1
V2
a__and
a__isNat
V1
isNatList
V2
mark
cons
X1
X2
mark
X1
true
U21
1
36998
isNatList
1
0
U11
2
2
s
1
1
0
a__U31
4
0
a__isNatIList
1
1
a__isNat
1
0
take
2
2
36998
and
2
1
2
0
isNatIList
1
0
a__U11
2
1
zeros
0
1
a__U31
4
1
4
24168
a__take
2
2
0
a__isNatList
1
1
a__U21
1
0
a__isNatIList
1
0
mark
1
1
0
0
0
0
a__and
2
2
0
a__zeros
0
0
a__U21
1
36998
nil
0
36998
mark
1
1
1
a__U11
2
2
a__length
1
1
1
isNat
1
0
U31
4
1
4
24168
a__isNatList
1
0
cons
2
1
1
a__take
2
2
36998
tt
0
1
a__isNat
1
1
a__and
2
1
2
0
length
1
1
a__zeros
0
1
a__length
1
2
a__isNatList
cons
V1
V2
a__and
a__isNat
V1
isNatList
V2
a__isNatList
cons
V1
V2
a__isNat
V1
a__isNatIList
V
a__isNatList
V
a__isNatIList
cons
V1
V2
a__and
a__isNat
V1
isNatIList
V2
a__isNatIList
cons
V1
V2
a__isNat
V1
a__isNatList
take
V1
V2
a__and
a__isNat
V1
isNatIList
V2
a__isNatList
take
V1
V2
a__isNat
V1
mark
and
X1
X2
a__and
mark
X1
X2
mark
and
X1
X2
mark
X1
a__isNat
length
V1
a__isNatList
V1
a__and
tt
X
mark
X
mark
isNatIList
X
a__isNatIList
X
mark
isNatList
X
a__isNatList
X
mark
s
X
mark
X
mark
isNat
X
a__isNat
X
a__isNat
s
V1
a__isNat
V1
a__take
s
M
cons
N
IL
a__U31
a__and
a__isNatIList
IL
and
isNat
M
isNat
N
IL
M
N
a__U31
tt
IL
M
N
cons
mark
N
take
M
IL
a__length
nil
0
a__isNat
s
V1
a__isNat
V1
a__zeros
cons
0
zeros
a__U21
tt
nil
a__length
cons
N
L
a__U11
a__and
a__isNatList
L
isNat
N
L
mark
length
X
a__length
mark
X
a__length
X
length
X
mark
isNat
X
a__isNat
X
mark
zeros
a__zeros
mark
s
X
s
mark
X
a__take
0
IL
a__U21
a__isNatIList
IL
mark
isNatList
X
a__isNatList
X
a__zeros
zeros
mark
U21
X
a__U21
mark
X
mark
isNatIList
X
a__isNatIList
X
a__and
tt
X
mark
X
mark
nil
nil
a__isNatIList
zeros
tt
a__take
X1
X2
take
X1
X2
a__isNat
length
V1
a__isNatList
V1
mark
U11
X1
X2
a__U11
mark
X1
X2
mark
and
X1
X2
a__and
mark
X1
X2
mark
0
0
a__isNatList
take
V1
V2
a__and
a__isNat
V1
isNatIList
V2
mark
tt
tt
a__isNatList
nil
tt
mark
U31
X1
X2
X3
X4
a__U31
mark
X1
X2
X3
X4
mark
take
X1
X2
a__take
mark
X1
mark
X2
a__isNatIList
cons
V1
V2
a__and
a__isNat
V1
isNatIList
V2
a__isNatIList
V
a__isNatList
V
a__isNatList
cons
V1
V2
a__and
a__isNat
V1
isNatList
V2
a__and
X1
X2
and
X1
X2
a__isNat
0
tt
a__U31
X1
X2
X3
X4
U31
X1
X2
X3
X4
a__U21
X
U21
X
a__isNat
X
isNat
X
a__isNatList
X
isNatList
X
a__U11
X1
X2
U11
X1
X2
mark
cons
X1
X2
cons
mark
X1
X2
a__isNatIList
X
isNatIList
X
a__U11
tt
L
s
a__length
mark
L
a__isNat
s
V1
a__isNat
V1
mark
isNat
X
a__isNat
X
mark
s
X
mark
X
mark
isNatList
X
a__isNatList
X
mark
isNatIList
X
a__isNatIList
X
a__and
tt
X
mark
X
a__isNat
length
V1
a__isNatList
V1
mark
and
X1
X2
mark
X1
mark
and
X1
X2
a__and
mark
X1
X2
a__isNatList
take
V1
V2
a__isNat
V1
a__isNatList
take
V1
V2
a__and
a__isNat
V1
isNatIList
V2
a__isNatIList
cons
V1
V2
a__isNat
V1
a__isNatIList
cons
V1
V2
a__and
a__isNat
V1
isNatIList
V2
a__isNatIList
V
a__isNatList
V
a__isNatList
cons
V1
V2
a__isNat
V1
a__isNatList
cons
V1
V2
a__and
a__isNat
V1
isNatList
V2
true
U21
1
1
12547
isNatList
1
1
11671
U11
2
2
437
s
1
1
0
a__U31
4
0
a__isNatIList
1
1
12545
a__isNat
1
1
11670
take
2
1
2
12544
and
2
1
2
11669
isNatIList
1
1
12546
a__U11
2
1
zeros
0
438
a__U31
4
1
4
1
a__take
2
0
a__isNatList
1
1
12546
a__U21
1
0
a__isNatIList
1
1
12546
mark
1
1
0
0
0
437
a__and
2
2
11668
a__zeros
0
0
a__U21
1
12546
nil
0
12547
mark
1
12545
a__U11
2
436
a__length
1
1
isNat
1
1
12546
U31
4
1
2
2
a__isNatList
1
1
11671
cons
2
1
2
11670
a__take
2
2
1
tt
0
12983
a__isNat
1
1
12545
a__and
2
2
12545
length
1
1
1
a__zeros
0
12545
a__length
1
436
a__isNat
length
V1
a__isNatList
V1
mark
isNatIList
X
a__isNatIList
X
mark
isNatList
X
a__isNatList
X
mark
s
X
mark
X
a__isNat
s
V1
a__isNat
V1
a__isNat
s
V1
a__isNat
V1
true
U21
1
5
isNatList
1
1
1
U11
2
2
1
s
1
1
1
a__U31
4
0
a__isNatIList
1
1
2
a__isNat
1
1
11670
take
2
1
2
1
and
2
1
2
2
isNatIList
1
1
7
a__U11
2
1
zeros
0
9
a__U31
4
1
4
0
a__take
2
0
a__isNatList
1
1
4
a__U21
1
0
a__isNatIList
1
12546
mark
1
0
0
0
5
a__and
2
11668
a__zeros
0
0
a__U21
1
1
4
nil
0
12
mark
1
1
2
a__U11
2
1
0
a__length
1
1
isNat
1
1
2
U31
4
1
2
720
a__isNatList
1
11671
cons
2
1
6
a__take
2
1
2
0
tt
0
7
a__isNat
1
1
1
a__and
2
2
2
length
1
1
3
a__zeros
0
11
a__length
1
4
mark
s
X
mark
X
true
U21
1
6
isNatList
1
1
1
U11
2
2
1
s
1
1
1
a__U31
4
0
a__isNatIList
1
1
1
a__isNat
1
11670
take
2
1
2
1
and
2
1
2
2
isNatIList
1
1
6
a__U11
2
1
zeros
0
9
a__U31
4
1
4
0
a__take
2
0
a__isNatList
1
1
4
a__U21
1
0
a__isNatIList
1
12546
mark
1
1
0
0
0
5
a__and
2
11668
a__zeros
0
0
a__U21
1
1
5
nil
0
13
mark
1
1
2
a__U11
2
1
0
a__length
1
1
isNat
1
1
2
U31
4
1
2
720
a__isNatList
1
11671
cons
2
1
6
a__take
2
1
2
0
tt
0
7
a__isNat
1
1
1
a__and
2
2
2
length
1
1
3
a__zeros
0
11
a__length
1
4
mark
isNatList
X
a__isNatList
X
false
mark
isNatIList
X
a__isNatIList
X
false
a__isNat
length
V1
a__isNatList
V1
false
a__length
cons
N
L
a__U11
a__and
a__isNatList
L
isNat
N
L
a__U11
tt
L
a__length
mark
L
true
Failed!
NaTT
certifiable-1.6