p
a
a
x0
p
x1
p
a
x2
x3
p
x2
p
a
a
b
x1
p
a
a
x0
x3
2.2
p
a
a
x0
p
x1
p
a
x2
x3
p
a
a
b
x1
p
a
a
x0
x3
p
a
a
x0
p
x1
p
a
x2
x3
p
a
a
x0
x3
p
a
a
x0
p
x1
p
a
x2
x3
p
x2
p
a
a
b
x1
p
a
a
x0
x3
true
p
a
a
x0
p
x1
p
a
x2
x3
p
x2
p
a
a
b
x1
p
a
a
x0
x3
p
a
a
x0
p
x1
p
a
x2
x3
p
a
a
x0
x3
p
a
a
x0
p
x1
p
a
x2
x3
p
a
a
b
x1
p
a
a
x0
x3
true
a
1
1
b
1
1
p
2
2
0
p
2
2
8856
p
a
a
x0
p
x1
p
a
x2
x3
p
x2
p
a
a
b
x1
p
a
a
x0
x3
p
a
a
x0
p
x1
p
a
x2
x3
p
x2
p
a
a
b
x1
p
a
a
x0
x3
p
a
a
x0
p
x1
p
a
x2
x3
p
x2
p
a
a
b
x1
p
a
a
x0
x3
true
Failed!
NaTT
certifiable-1.6