a
d
x1
d
b
x1
a
x1
b
b
b
x1
d
x1
x1
a
x1
x1
b
d
b
x1
a
d
x1
b
c
x1
c
d
d
x1
a
c
x1
b
b
c
d
x1
2.2
a
x1
b
b
x1
a
c
x1
b
b
c
d
x1
b
d
b
x1
a
d
x1
a
d
x1
d
b
x1
a
d
x1
b
x1
a
c
x1
b
c
d
x1
b
d
b
x1
d
x1
b
c
x1
d
x1
a
x1
b
x1
a
x1
b
b
b
x1
a
c
x1
d
x1
b
c
x1
d
d
x1
true
a
d
x1
b
x1
a
x1
b
b
b
x1
a
x1
b
x1
b
d
b
x1
a
d
x1
a
c
x1
b
b
c
d
x1
a
x1
b
b
x1
true
a
1
1
0
d
1
1
21239
b
1
1
0
c
1
10157
d
1
0
a
1
1
0
b
1
1
0
a
x1
b
b
x1
a
c
x1
b
b
c
d
x1
b
d
b
x1
a
d
x1
a
x1
b
x1
a
x1
b
b
b
x1
a
x1
x1
a
d
x1
d
b
x1
d
x1
x1
b
d
b
x1
a
d
x1
a
c
x1
b
b
c
d
x1
b
c
x1
c
d
d
x1
a
x1
b
b
b
x1
b
d
b
x1
a
d
x1
a
c
x1
b
b
c
d
x1
a
x1
b
x1
a
x1
b
b
x1
a
x1
b
b
b
x1
true
2
1
a
1
1
90159
90159
d
1
1
1
1
1
1
1
21115
b
1
1
30053
30053
c
1
16959
1
d
1
0
0
a
1
0
0
1
1
1
60106
60106
b
1
0
0
1
1
1
0
0
a
x1
b
b
b
x1
b
d
b
x1
a
d
x1
a
x1
x1
a
d
x1
d
b
x1
d
x1
x1
b
d
b
x1
a
d
x1
a
c
x1
b
b
c
d
x1
b
c
x1
c
d
d
x1
a
x1
b
b
b
x1
b
d
b
x1
a
d
x1
a
x1
b
b
b
x1
true
Failed!
NaTT
certifiable-1.6