i
0
x1
p
s
p
s
0
p
s
p
s
x1
i
s
x1
p
s
p
s
s
j
p
s
p
s
p
p
p
p
s
s
s
s
x1
j
0
x1
p
s
p
p
s
s
0
p
s
p
s
x1
j
s
x1
s
s
s
s
p
p
s
s
i
p
s
p
s
x1
p
p
s
x1
p
x1
p
s
x1
x1
p
0
x1
0
s
s
s
s
s
s
s
s
x1
2.2
i
s
x1
p
s
s
j
p
s
p
s
p
p
p
p
s
s
s
s
x1
i
s
x1
p
p
p
p
s
s
s
s
x1
j
0
x1
p
s
s
0
p
s
p
s
x1
i
s
x1
p
s
s
s
s
x1
j
0
x1
p
s
p
p
s
s
0
p
s
p
s
x1
j
s
x1
p
s
x1
j
s
x1
p
s
p
s
x1
j
0
x1
p
p
s
s
0
p
s
p
s
x1
j
0
x1
p
s
p
s
x1
j
s
x1
p
p
s
s
i
p
s
p
s
x1
i
s
x1
p
p
p
s
s
s
s
x1
p
p
s
x1
p
x1
i
s
x1
p
s
p
p
p
p
s
s
s
s
x1
j
s
x1
i
p
s
p
s
x1
i
0
x1
p
s
0
p
s
p
s
x1
i
0
x1
p
s
x1
j
s
x1
p
s
s
i
p
s
p
s
x1
i
0
x1
p
s
p
s
0
p
s
p
s
x1
i
s
x1
j
p
s
p
s
p
p
p
p
s
s
s
s
x1
i
s
x1
p
s
p
s
s
j
p
s
p
s
p
p
p
p
s
s
s
s
x1
i
s
x1
p
p
s
s
s
s
x1
j
0
x1
p
s
x1
i
s
x1
p
s
p
s
p
p
p
p
s
s
s
s
x1
i
0
x1
p
s
p
s
x1
true
i
s
x1
j
p
s
p
s
p
p
p
p
s
s
s
s
x1
j
s
x1
i
p
s
p
s
x1
true
Failed!
NaTT
certifiable-1.6