a____
__
X
Y
Z
a____
mark
X
a____
mark
Y
mark
Z
a____
X
nil
mark
X
a____
nil
X
mark
X
a__U11
tt
V
a__U12
a__isNeList
V
a__U12
tt
tt
a__U21
tt
V1
V2
a__U22
a__isList
V1
V2
a__U22
tt
V2
a__U23
a__isList
V2
a__U23
tt
tt
a__U31
tt
V
a__U32
a__isQid
V
a__U32
tt
tt
a__U41
tt
V1
V2
a__U42
a__isList
V1
V2
a__U42
tt
V2
a__U43
a__isNeList
V2
a__U43
tt
tt
a__U51
tt
V1
V2
a__U52
a__isNeList
V1
V2
a__U52
tt
V2
a__U53
a__isList
V2
a__U53
tt
tt
a__U61
tt
V
a__U62
a__isQid
V
a__U62
tt
tt
a__U71
tt
V
a__U72
a__isNePal
V
a__U72
tt
tt
a__and
tt
X
mark
X
a__isList
V
a__U11
a__isPalListKind
V
V
a__isList
nil
tt
a__isList
__
V1
V2
a__U21
a__and
a__isPalListKind
V1
isPalListKind
V2
V1
V2
a__isNeList
V
a__U31
a__isPalListKind
V
V
a__isNeList
__
V1
V2
a__U41
a__and
a__isPalListKind
V1
isPalListKind
V2
V1
V2
a__isNeList
__
V1
V2
a__U51
a__and
a__isPalListKind
V1
isPalListKind
V2
V1
V2
a__isNePal
V
a__U61
a__isPalListKind
V
V
a__isNePal
__
I
__
P
I
a__and
a__and
a__isQid
I
isPalListKind
I
and
isPal
P
isPalListKind
P
a__isPal
V
a__U71
a__isPalListKind
V
V
a__isPal
nil
tt
a__isPalListKind
a
tt
a__isPalListKind
e
tt
a__isPalListKind
i
tt
a__isPalListKind
nil
tt
a__isPalListKind
o
tt
a__isPalListKind
u
tt
a__isPalListKind
__
V1
V2
a__and
a__isPalListKind
V1
isPalListKind
V2
a__isQid
a
tt
a__isQid
e
tt
a__isQid
i
tt
a__isQid
o
tt
a__isQid
u
tt
mark
__
X1
X2
a____
mark
X1
mark
X2
mark
U11
X1
X2
a__U11
mark
X1
X2
mark
U12
X
a__U12
mark
X
mark
isNeList
X
a__isNeList
X
mark
U21
X1
X2
X3
a__U21
mark
X1
X2
X3
mark
U22
X1
X2
a__U22
mark
X1
X2
mark
isList
X
a__isList
X
mark
U23
X
a__U23
mark
X
mark
U31
X1
X2
a__U31
mark
X1
X2
mark
U32
X
a__U32
mark
X
mark
isQid
X
a__isQid
X
mark
U41
X1
X2
X3
a__U41
mark
X1
X2
X3
mark
U42
X1
X2
a__U42
mark
X1
X2
mark
U43
X
a__U43
mark
X
mark
U51
X1
X2
X3
a__U51
mark
X1
X2
X3
mark
U52
X1
X2
a__U52
mark
X1
X2
mark
U53
X
a__U53
mark
X
mark
U61
X1
X2
a__U61
mark
X1
X2
mark
U62
X
a__U62
mark
X
mark
U71
X1
X2
a__U71
mark
X1
X2
mark
U72
X
a__U72
mark
X
mark
isNePal
X
a__isNePal
X
mark
and
X1
X2
a__and
mark
X1
X2
mark
isPalListKind
X
a__isPalListKind
X
mark
isPal
X
a__isPal
X
mark
nil
nil
mark
tt
tt
mark
a
a
mark
e
e
mark
i
i
mark
o
o
mark
u
u
a____
X1
X2
__
X1
X2
a__U11
X1
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U11
X1
X2
a__U12
X
U12
X
a__isNeList
X
isNeList
X
a__U21
X1
X2
X3
U21
X1
X2
X3
a__U22
X1
X2
U22
X1
X2
a__isList
X
isList
X
a__U23
X
U23
X
a__U31
X1
X2
U31
X1
X2
a__U32
X
U32
X
a__isQid
X
isQid
X
a__U41
X1
X2
X3
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X1
X2
X3
a__U42
X1
X2
U42
X1
X2
a__U43
X
U43
X
a__U51
X1
X2
X3
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X1
X2
X3
a__U52
X1
X2
U52
X1
X2
a__U53
X
U53
X
a__U61
X1
X2
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X1
X2
a__U62
X
U62
X
a__U71
X1
X2
U71
X1
X2
a__U72
X
U72
X
a__isNePal
X
isNePal
X
a__and
X1
X2
and
X1
X2
a__isPalListKind
X
isPalListKind
X
a__isPal
X
isPal
X
2.2
a__isNePal
__
I
__
P
I
a__and
a__and
a__isQid
I
isPalListKind
I
and
isPal
P
isPalListKind
P
a____
__
X
Y
Z
mark
X
mark
U42
X1
X2
mark
X1
a__U31
tt
V
a__U32
a__isQid
V
a__isList
__
V1
V2
a__U21
a__and
a__isPalListKind
V1
isPalListKind
V2
V1
V2
a__and
tt
X
mark
X
a__isList
V
a__U11
a__isPalListKind
V
V
mark
U62
X
a__U62
mark
X
mark
U42
X1
X2
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mark
X1
X2
mark
isList
X
a__isList
X
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tt
V2
a__isNeList
V2
a__isList
__
V1
V2
a__isPalListKind
V1
a__U52
tt
V2
a__U53
a__isList
V2
a__U61
tt
V
a__U62
a__isQid
V
mark
U62
X
mark
X
mark
U22
X1
X2
mark
X1
mark
U53
X
a__U53
mark
X
a__isPal
V
a__U71
a__isPalListKind
V
V
a__U71
tt
V
a__U72
a__isNePal
V
a__U61
tt
V
a__isQid
V
mark
U72
X
a__U72
mark
X
mark
__
X1
X2
mark
X1
mark
U11
X1
X2
a__U11
mark
X1
X2
mark
and
X1
X2
mark
X1
mark
U72
X
mark
X
a__isNeList
V
a__isPalListKind
V
a__isList
V
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V
a__U42
tt
V2
a__U43
a__isNeList
V2
mark
isQid
X
a__isQid
X
mark
U31
X1
X2
mark
X1
mark
U21
X1
X2
X3
mark
X1
mark
isNeList
X
a__isNeList
X
mark
U32
X
mark
X
a__U22
tt
V2
a__isList
V2
a__U71
tt
V
a__isNePal
V
a__U11
tt
V
a__isNeList
V
mark
U41
X1
X2
X3
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mark
X1
X2
X3
a__isNeList
__
V1
V2
a__isPalListKind
V1
mark
U52
X1
X2
mark
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a__isNeList
__
V1
V2
a__isPalListKind
V1
mark
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X1
X2
mark
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a__U51
tt
V1
V2
a__isNeList
V1
a__isNeList
__
V1
V2
a__and
a__isPalListKind
V1
isPalListKind
V2
mark
U21
X1
X2
X3
a__U21
mark
X1
X2
X3
a__U41
tt
V1
V2
a__U42
a__isList
V1
V2
a__isNeList
__
V1
V2
a__U41
a__and
a__isPalListKind
V1
isPalListKind
V2
V1
V2
a__U22
tt
V2
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a__isList
V2
a____
__
X
Y
Z
mark
Z
mark
isPal
X
a__isPal
X
mark
U51
X1
X2
X3
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mark
X1
X2
X3
mark
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X1
X2
mark
X2
a__U31
tt
V
a__isQid
V
mark
U22
X1
X2
a__U22
mark
X1
X2
a__isPal
V
a__isPalListKind
V
mark
U41
X1
X2
X3
mark
X1
a__U21
tt
V1
V2
a__U22
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V1
V2
a____
__
X
Y
Z
mark
Y
mark
U12
X
a__U12
mark
X
mark
U11
X1
X2
mark
X1
mark
U32
X
a__U32
mark
X
a__U52
tt
V2
a__isList
V2
a__U11
tt
V
a__U12
a__isNeList
V
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V
a__U61
a__isPalListKind
V
V
mark
U43
X
a__U43
mark
X
mark
U53
X
mark
X
mark
and
X1
X2
a__and
mark
X1
X2
a__U51
tt
V1
V2
a__U52
a__isNeList
V1
V2
a__isNePal
V
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V
mark
U23
X
mark
X
mark
U52
X1
X2
a__U52
mark
X1
X2
mark
U43
X
mark
X
a____
nil
X
mark
X
a____
__
X
Y
Z
a____
mark
Y
mark
Z
mark
U23
X
a__U23
mark
X
mark
__
X1
X2
a____
mark
X1
mark
X2
mark
U61
X1
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mark
X1
a__U41
tt
V1
V2
a__isList
V1
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__
V1
V2
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V1
mark
isNePal
X
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X
mark
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X
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X
a____
__
X
Y
Z
a____
mark
X
a____
mark
Y
mark
Z
a__isNeList
__
V1
V2
a__U51
a__and
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V2
V1
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a__isList
__
V1
V2
a__and
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V1
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V2
a__U21
tt
V1
V2
a__isList
V1
mark
U61
X1
X2
a__U61
mark
X1
X2
a__isNePal
__
I
__
P
I
a__and
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I
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I
mark
U71
X1
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a__U71
mark
X1
X2
a____
X
nil
mark
X
a__isNeList
V
a__U31
a__isPalListKind
V
V
mark
U12
X
mark
X
mark
U51
X1
X2
X3
mark
X1
a__isNePal
__
I
__
P
I
a__isQid
I
a__isNeList
__
V1
V2
a__and
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V1
isPalListKind
V2
mark
U31
X1
X2
a__U31
mark
X1
X2
a__isPalListKind
__
V1
V2
a__and
a__isPalListKind
V1
isPalListKind
V2
true
a__isPalListKind
__
V1
V2
a__and
a__isPalListKind
V1
isPalListKind
V2
a__isNeList
__
V1
V2
a__and
a__isPalListKind
V1
isPalListKind
V2
mark
U41
X1
X2
X3
mark
X1
mark
U22
X1
X2
a__U22
mark
X1
X2
a__isPal
V
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V
mark
__
X1
X2
mark
X2
mark
U51
X1
X2
X3
a__U51
mark
X1
X2
X3
mark
isPal
X
a__isPal
X
mark
U51
X1
X2
X3
mark
X1
a____
__
X
Y
Z
mark
Z
a__isNeList
__
V1
V2
a__U41
a__and
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V1
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V2
V1
V2
a__U41
tt
V1
V2
a__U42
a__isList
V1
V2
mark
U21
X1
X2
X3
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mark
X1
X2
X3
a__isNeList
__
V1
V2
a__and
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V1
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V2
mark
U12
X
mark
X
a__U51
tt
V1
V2
a__isNeList
V1
mark
U71
X1
X2
mark
X1
a__isNeList
__
V1
V2
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V1
a____
X
nil
mark
X
mark
U52
X1
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mark
X1
mark
U71
X1
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a__U71
mark
X1
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a__isNeList
__
V1
V2
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V1
a__isNePal
__
I
__
P
I
a__and
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I
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I
mark
U41
X1
X2
X3
a__U41
mark
X1
X2
X3
a__U11
tt
V
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V
a__U21
tt
V1
V2
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V1
a__U71
tt
V
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V
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__
V1
V2
a__and
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V1
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V2
a__U22
tt
V2
a__isList
V2
a__isNeList
__
V1
V2
a__U51
a__and
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V1
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V2
V1
V2
a____
__
X
Y
Z
a____
mark
X
a____
mark
Y
mark
Z
mark
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X
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X
mark
U32
X
mark
X
mark
isNeList
X
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X
mark
U21
X1
X2
X3
mark
X1
mark
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X
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X
mark
U31
X1
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X1
a__U41
tt
V1
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V1
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__
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U61
X1
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X1
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V
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V
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V
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V
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__
X1
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a____
mark
X1
mark
X2
mark
U72
X
mark
X
mark
and
X1
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mark
X1
mark
__
X1
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mark
X1
mark
U11
X1
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a__U11
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X1
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a____
__
X
Y
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a____
mark
Y
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Z
a____
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X
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X
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U43
X
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X
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V
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V
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U52
X1
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mark
X1
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U22
X1
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U23
X
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X
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V
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V
mark
U62
X
mark
X
a__U51
tt
V1
V2
a__U52
a__isNeList
V1
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mark
and
X1
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mark
X1
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mark
U53
X
mark
X
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__
V1
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V1
a__U42
tt
V2
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V2
mark
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X
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X
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tt
V2
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V2
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U42
X1
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mark
X1
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a__and
tt
X
mark
X
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V
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V
mark
U11
X1
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mark
X1
a____
__
X
Y
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mark
Y
a__isList
__
V1
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a__U21
a__and
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V1
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V2
V1
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a____
__
X
Y
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mark
X
mark
U42
X1
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mark
X1
a__isNePal
__
I
__
P
I
a__and
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I
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I
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P
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P
a__U21
tt
V1
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a__U22
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V1
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a
0
0
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1
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U21
3
1
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3
4
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1
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2
2
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U11
2
1
2
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2
0
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4
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U42
2
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u
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26170
U71
2
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a__U62
1
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2
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0
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1
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1
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U43
1
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0
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3
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U23
1
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2
1
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1
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U72
1
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2
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2
1
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3
1
2
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4
a____
2
1
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0
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1
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U12
1
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1
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1
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2
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3
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2
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3
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1
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0
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U62
1
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1
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2
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U32
1
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1
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2
1
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2
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i
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U52
2
1
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U61
2
1
0
e
0
0
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4
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U31
2
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2
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0
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1
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2
1
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3
2
3
5
tt
0
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1
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1
1
0
a__isList
1
1
4
U22
2
1
2
2
U51
3
1
2
3
4
a__and
2
1
2
0
isPalListKind
1
0
U53
1
1
0
U41
3
1
2
3
4
a__U32
1
0
__
2
1
2
2
a__U21
tt
V1
V2
a__U22
a__isList
V1
V2
a____
__
X
Y
Z
mark
X
a____
__
X
Y
Z
mark
Y
a__isList
V
a__U11
a__isPalListKind
V
V
a__and
tt
X
mark
X
mark
U42
X1
X2
a__U42
mark
X1
X2
a__U52
tt
V2
a__isList
V2
mark
isList
X
a__isList
X
a__U42
tt
V2
a__isNeList
V2
mark
U53
X
mark
X
mark
and
X1
X2
a__and
mark
X1
X2
a__U51
tt
V1
V2
a__U52
a__isNeList
V1
V2
mark
U62
X
mark
X
a__isNePal
V
a__isPalListKind
V
mark
U23
X
mark
X
mark
U52
X1
X2
a__U52
mark
X1
X2
a__isPal
V
a__U71
a__isPalListKind
V
V
mark
U43
X
mark
X
a____
nil
X
mark
X
mark
U11
X1
X2
a__U11
mark
X1
X2
mark
and
X1
X2
mark
X1
mark
U72
X
mark
X
mark
U61
X1
X2
mark
X1
a__isPalListKind
__
V1
V2
a__isPalListKind
V1
mark
isNePal
X
a__isNePal
X
mark
isNeList
X
a__isNeList
X
mark
isPalListKind
X
a__isPalListKind
X
a____
__
X
Y
Z
a____
mark
X
a____
mark
Y
mark
Z
a__U22
tt
V2
a__isList
V2
a__U71
tt
V
a__isNePal
V
a__U21
tt
V1
V2
a__isList
V1
a__U11
tt
V
a__isNeList
V
mark
U71
X1
X2
a__U71
mark
X1
X2
a____
X
nil
mark
X
mark
U71
X1
X2
mark
X1
a__U51
tt
V1
V2
a__isNeList
V1
mark
U12
X
mark
X
a____
__
X
Y
Z
mark
Z
mark
isPal
X
a__isPal
X
a__isPal
V
a__isPalListKind
V
mark
U22
X1
X2
a__U22
mark
X1
X2
a__isPalListKind
__
V1
V2
a__and
a__isPalListKind
V1
isPalListKind
V2
a__U62
tt
tt
mark
isList
X
a__isList
X
a__U21
X1
X2
X3
U21
X1
X2
X3
a__U11
tt
V
a__U12
a__isNeList
V
a__U52
tt
V2
a__U53
a__isList
V2
a__U23
tt
tt
mark
isQid
X
a__isQid
X
a____
__
X
Y
Z
a____
mark
X
a____
mark
Y
mark
Z
a__U11
X1
X2
U11
X1
X2
a____
nil
X
mark
X
a__U53
tt
tt
a__and
tt
X
mark
X
a__isPalListKind
o
tt
mark
isPal
X
a__isPal
X
a__U32
X
U32
X
a__isPal
X
isPal
X
a__isNeList
__
V1
V2
a__U41
a__and
a__isPalListKind
V1
isPalListKind
V2
V1
V2
mark
U71
X1
X2
a__U71
mark
X1
X2
a__U71
tt
V
a__U72
a__isNePal
V
a__isPalListKind
a
tt
a__U61
tt
V
a__U62
a__isQid
V
mark
U53
X
a__U53
mark
X
a__isNeList
__
V1
V2
a__U51
a__and
a__isPalListKind
V1
isPalListKind
V2
V1
V2
a__U41
X1
X2
X3
U41
X1
X2
X3
a__U31
X1
X2
U31
X1
X2
a__isPalListKind
i
tt
a__isList
V
a__U11
a__isPalListKind
V
V
a__isNePal
V
a__U61
a__isPalListKind
V
V
mark
isNePal
X
a__isNePal
X
mark
__
X1
X2
a____
mark
X1
mark
X2
a__U12
tt
tt
mark
e
e
a__isPalListKind
e
tt
mark
U72
X
a__U72
mark
X
a__U61
X1
X2
U61
X1
X2
a__U53
X
U53
X
a__U32
tt
tt
a__isQid
a
tt
a__U22
tt
V2
a__U23
a__isList
V2
a__U42
X1
X2
U42
X1
X2
a__U72
tt
tt
a__isNeList
V
a__U31
a__isPalListKind
V
V
mark
U22
X1
X2
a__U22
mark
X1
X2
mark
U31
X1
X2
a__U31
mark
X1
X2
a__isPal
V
a__U71
a__isPalListKind
V
V
mark
U62
X
a__U62
mark
X
a__U51
tt
V1
V2
a__U52
a__isNeList
V1
V2
a__isList
X
isList
X
a__U43
X
U43
X
mark
U42
X1
X2
a__U42
mark
X1
X2
a__isNeList
X
isNeList
X
a__isPal
nil
tt
a__U42
tt
V2
a__U43
a__isNeList
V2
mark
nil
nil
a__U72
X
U72
X
mark
U11
X1
X2
a__U11
mark
X1
X2
a__U12
X
U12
X
a__U22
X1
X2
U22
X1
X2
a__isList
nil
tt
mark
tt
tt
a__isList
__
V1
V2
a__U21
a__and
a__isPalListKind
V1
isPalListKind
V2
V1
V2
a__U62
X
U62
X
a____
X1
X2
__
X1
X2
mark
U43
X
a__U43
mark
X
a__and
X1
X2
and
X1
X2
a__U41
tt
V1
V2
a__U42
a__isList
V1
V2
a__U31
tt
V
a__U32
a__isQid
V
a__U43
tt
tt
mark
U23
X
a__U23
mark
X
a__U51
X1
X2
X3
U51
X1
X2
X3
a__isQid
e
tt
mark
isPalListKind
X
a__isPalListKind
X
mark
U41
X1
X2
X3
a__U41
mark
X1
X2
X3
mark
U52
X1
X2
a__U52
mark
X1
X2
a__U21
tt
V1
V2
a__U22
a__isList
V1
V2
a__isPalListKind
__
V1
V2
a__and
a__isPalListKind
V1
isPalListKind
V2
mark
U61
X1
X2
a__U61
mark
X1
X2
mark
U51
X1
X2
X3
a__U51
mark
X1
X2
X3
mark
o
o
mark
u
u
mark
U21
X1
X2
X3
a__U21
mark
X1
X2
X3
mark
a
a
mark
U32
X
a__U32
mark
X
mark
isNeList
X
a__isNeList
X
mark
i
i
a__U52
X1
X2
U52
X1
X2
a__isNePal
X
isNePal
X
a__isPalListKind
X
isPalListKind
X
a__isPalListKind
u
tt
a__isQid
i
tt
a__U71
X1
X2
U71
X1
X2
a__isQid
o
tt
mark
U12
X
a__U12
mark
X
mark
and
X1
X2
a__and
mark
X1
X2
a__U23
X
U23
X
a__isPalListKind
nil
tt
a__isNePal
__
I
__
P
I
a__and
a__and
a__isQid
I
isPalListKind
I
and
isPal
P
isPalListKind
P
a__isQid
u
tt
a__isQid
X
isQid
X
a____
X
nil
mark
X
a____
__
X
Y
Z
a____
mark
X
a____
mark
Y
mark
Z
true
a
0
1
a__isNePal
1
2
U21
3
1
2
a__U72
1
0
a__U71
2
2
U11
2
1
2
a__U31
2
0
a__isNeList
1
4
isNeList
1
2
a__U23
1
0
isPal
1
1
1
U42
2
2
u
0
21822
U71
2
1
1
a__U62
1
1
1
and
2
1
2
0
a__U43
1
0
a__isPal
1
2
U43
1
1
a__U51
3
4
U23
1
0
a__U22
2
1
0
isNePal
1
1
2
U72
1
1
a__U11
2
4
a__U31
2
1
2
a__U51
3
1
2
a____
2
1
0
a__U53
1
0
U12
1
1
0
a__U43
1
1
isQid
1
1
a__U62
1
0
a____
2
1
2
38593
a__U42
2
4
a__U41
3
1
2
a__isList
1
2
a__isNeList
1
2
a__U12
1
0
o
0
0
a__U21
3
4
a__U61
2
0
mark
1
2
isList
1
2
a__and
2
2
a__U21
3
1
2
a__U32
1
1
1
nil
0
11453
U62
1
1
1
a__isQid
1
0
a__U52
2
4
mark
1
1
0
a__U72
1
1
a__isNePal
1
1
2
a__U11
2
1
2
a__isPalListKind
1
0
U32
1
1
1
a__U53
1
1
0
a__U42
2
2
a__U52
2
2
a__U12
1
1
0
i
0
43724
U52
2
2
U61
2
1
2
2
e
0
0
a__U22
2
4
a__isPalListKind
1
2
U31
2
1
2
a__U71
2
1
1
a__isPal
1
1
1
a__U61
2
1
2
2
a__U41
3
5
tt
0
0
a__isQid
1
1
a__U23
1
0
a__isList
1
4
U22
2
1
0
U51
3
1
2
a__and
2
1
2
0
isPalListKind
1
0
U53
1
1
0
U41
3
1
2
a__U32
1
0
__
2
1
2
38593
a__U62
tt
tt
mark
isList
X
a__isList
X
a__U21
X1
X2
X3
U21
X1
X2
X3
a__U11
tt
V
a__U12
a__isNeList
V
a__U52
tt
V2
a__U53
a__isList
V2
a__U23
tt
tt
mark
isQid
X
a__isQid
X
a____
__
X
Y
Z
a____
mark
X
a____
mark
Y
mark
Z
a__U11
X1
X2
U11
X1
X2
a____
nil
X
mark
X
a__U53
tt
tt
a__and
tt
X
mark
X
a__isPalListKind
o
tt
mark
isPal
X
a__isPal
X
a__U32
X
U32
X
a__isPal
X
isPal
X
a__isNeList
__
V1
V2
a__U41
a__and
a__isPalListKind
V1
isPalListKind
V2
V1
V2
mark
U71
X1
X2
a__U71
mark
X1
X2
a__U71
tt
V
a__U72
a__isNePal
V
a__isPalListKind
a
tt
a__U61
tt
V
a__U62
a__isQid
V
mark
U53
X
a__U53
mark
X
a__isNeList
__
V1
V2
a__U51
a__and
a__isPalListKind
V1
isPalListKind
V2
V1
V2
a__U41
X1
X2
X3
U41
X1
X2
X3
a__U31
X1
X2
U31
X1
X2
a__isPalListKind
i
tt
a__isList
V
a__U11
a__isPalListKind
V
V
a__isNePal
V
a__U61
a__isPalListKind
V
V
mark
isNePal
X
a__isNePal
X
mark
__
X1
X2
a____
mark
X1
mark
X2
a__U12
tt
tt
mark
e
e
a__isPalListKind
e
tt
mark
U72
X
a__U72
mark
X
a__U61
X1
X2
U61
X1
X2
a__U53
X
U53
X
a__U32
tt
tt
a__isQid
a
tt
a__U22
tt
V2
a__U23
a__isList
V2
a__U42
X1
X2
U42
X1
X2
a__U72
tt
tt
a__isNeList
V
a__U31
a__isPalListKind
V
V
mark
U22
X1
X2
a__U22
mark
X1
X2
mark
U31
X1
X2
a__U31
mark
X1
X2
a__isPal
V
a__U71
a__isPalListKind
V
V
mark
U62
X
a__U62
mark
X
a__U51
tt
V1
V2
a__U52
a__isNeList
V1
V2
a__isList
X
isList
X
a__U43
X
U43
X
mark
U42
X1
X2
a__U42
mark
X1
X2
a__isNeList
X
isNeList
X
a__isPal
nil
tt
a__U42
tt
V2
a__U43
a__isNeList
V2
mark
nil
nil
a__U72
X
U72
X
mark
U11
X1
X2
a__U11
mark
X1
X2
a__U12
X
U12
X
a__U22
X1
X2
U22
X1
X2
a__isList
nil
tt
mark
tt
tt
a__isList
__
V1
V2
a__U21
a__and
a__isPalListKind
V1
isPalListKind
V2
V1
V2
a__U62
X
U62
X
a____
X1
X2
__
X1
X2
mark
U43
X
a__U43
mark
X
a__and
X1
X2
and
X1
X2
a__U41
tt
V1
V2
a__U42
a__isList
V1
V2
a__U31
tt
V
a__U32
a__isQid
V
a__U43
tt
tt
mark
U23
X
a__U23
mark
X
a__U51
X1
X2
X3
U51
X1
X2
X3
a__isQid
e
tt
mark
isPalListKind
X
a__isPalListKind
X
mark
U41
X1
X2
X3
a__U41
mark
X1
X2
X3
mark
U52
X1
X2
a__U52
mark
X1
X2
a__U21
tt
V1
V2
a__U22
a__isList
V1
V2
a__isPalListKind
__
V1
V2
a__and
a__isPalListKind
V1
isPalListKind
V2
mark
U61
X1
X2
a__U61
mark
X1
X2
mark
U51
X1
X2
X3
a__U51
mark
X1
X2
X3
mark
o
o
mark
u
u
mark
U21
X1
X2
X3
a__U21
mark
X1
X2
X3
mark
a
a
mark
U32
X
a__U32
mark
X
mark
isNeList
X
a__isNeList
X
mark
i
i
a__U52
X1
X2
U52
X1
X2
a__isNePal
X
isNePal
X
a__isPalListKind
X
isPalListKind
X
a__isPalListKind
u
tt
a__isQid
i
tt
a__U71
X1
X2
U71
X1
X2
a__isQid
o
tt
mark
U12
X
a__U12
mark
X
mark
and
X1
X2
a__and
mark
X1
X2
a__U23
X
U23
X
a__isPalListKind
nil
tt
a__isNePal
__
I
__
P
I
a__and
a__and
a__isQid
I
isPalListKind
I
and
isPal
P
isPalListKind
P
a__isQid
u
tt
a__isQid
X
isQid
X
a____
X
nil
mark
X
a____
__
X
Y
Z
mark
X
false
a____
__
X
Y
Z
mark
Y
false
a____
__
X
Y
Z
mark
Z
false
a____
nil
X
mark
X
false
a__U51
tt
V1
V2
a__isNeList
V1
false
a__U51
tt
V1
V2
a__U52
a__isNeList
V1
V2
false
a__U21
tt
V1
V2
a__isList
V1
false
a__U21
tt
V1
V2
a__U22
a__isList
V1
V2
false
a____
X
nil
mark
X
false
a__and
tt
X
mark
X
mark
isPal
X
a__isPal
X
mark
U71
X1
X2
mark
X1
mark
U71
X1
X2
a__U71
mark
X1
X2
a__U71
tt
V
a__isNePal
V
mark
U53
X
mark
X
a__isNePal
V
a__isPalListKind
V
mark
isNePal
X
a__isNePal
X
mark
U72
X
mark
X
a__isPal
V
a__isPalListKind
V
a__isPal
V
a__U71
a__isPalListKind
V
V
mark
U62
X
mark
X
mark
U43
X
mark
X
mark
U23
X
mark
X
mark
isPalListKind
X
a__isPalListKind
X
a__isPalListKind
__
V1
V2
a__isPalListKind
V1
a__isPalListKind
__
V1
V2
a__and
a__isPalListKind
V1
isPalListKind
V2
mark
U61
X1
X2
mark
X1
mark
U12
X
mark
X
mark
and
X1
X2
mark
X1
mark
and
X1
X2
a__and
mark
X1
X2
true
a
0
1
a__isNePal
1
3
U21
3
1
2
3
1
a__U72
1
0
a__U71
2
4
U11
2
1
2
0
a__U31
2
0
a__isNeList
1
4
isNeList
1
1
0
a__U23
1
0
isPal
1
4
U42
2
2
1
u
0
10883
U71
2
1
4
a__U62
1
1
1
and
2
1
2
0
a__U43
1
0
a__isPal
1
5
U43
1
1
1
a__U51
3
4
U23
1
1
0
a__U22
2
1
2
0
isNePal
1
4
U72
1
1
0
a__U11
2
4
a__U31
2
1
0
a__U51
3
1
3
1
a____
2
1
0
a__U53
1
0
U12
1
1
0
a__U43
1
1
1
isQid
1
0
a__U62
1
0
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NaTT
certifiable-1.6