a
c
a
x1
c
a
c
x1
a
a
b
x1
a
d
b
x1
a
b
x1
b
a
a
x1
d
d
x1
a
d
b
x1
b
b
x1
b
c
x1
a
d
c
x1
c
a
x1
b
c
x1
a
a
a
x1
2.2
a
a
b
x1
d
b
x1
b
c
x1
a
x1
d
d
x1
d
b
x1
a
b
x1
a
a
x1
a
c
a
x1
a
c
x1
d
d
x1
a
d
b
x1
d
d
x1
b
x1
b
b
x1
b
c
x1
a
b
x1
a
x1
b
c
x1
a
a
x1
a
d
c
x1
a
x1
a
a
b
x1
a
d
b
x1
a
b
x1
b
a
a
x1
b
c
x1
a
a
a
x1
true
b
c
x1
a
a
a
x1
d
d
x1
b
x1
d
d
x1
a
d
b
x1
a
b
x1
b
a
a
x1
a
a
b
x1
a
d
b
x1
a
d
c
x1
a
x1
a
b
x1
a
a
x1
d
d
x1
d
b
x1
b
c
x1
a
x1
b
c
x1
a
a
x1
a
b
x1
a
x1
b
b
x1
b
c
x1
a
a
b
x1
d
b
x1
true
a
1
1
d
1
3
b
1
1
c
1
1
d
1
1
0
a
1
2
b
1
2
b
b
x1
b
c
x1
a
b
x1
a
x1
b
c
x1
a
a
x1
b
c
x1
a
x1
a
b
x1
a
a
x1
a
d
c
x1
a
x1
a
a
b
x1
a
d
b
x1
a
b
x1
b
a
a
x1
b
c
x1
a
a
a
x1
a
c
a
x1
c
a
c
x1
a
b
x1
b
a
a
x1
b
b
x1
b
c
x1
b
c
x1
a
a
a
x1
a
d
c
x1
c
a
x1
a
a
b
x1
a
d
b
x1
a
b
x1
a
x1
a
b
x1
a
a
x1
a
b
x1
b
a
a
x1
b
b
x1
b
c
x1
b
c
x1
a
x1
b
c
x1
a
a
x1
b
c
x1
a
a
a
x1
a
d
c
x1
a
x1
a
a
b
x1
a
d
b
x1
true
2
1
a
1
0
0
0
1
1
0
0
d
1
1
1
0
1
1
32300
0
b
1
0
1
0
1
1
0
32300
c
1
0
0
0
1
1
0
0
d
1
0
0
a
1
0
0
1
0
1
0
0
b
1
0
0
1
0
1
1
0
a
a
b
x1
a
d
b
x1
a
d
c
x1
a
x1
d
d
x1
a
d
b
x1
a
c
a
x1
c
a
c
x1
a
b
x1
b
a
a
x1
b
b
x1
b
c
x1
b
c
x1
a
a
a
x1
a
d
c
x1
c
a
x1
a
a
b
x1
a
d
b
x1
a
d
c
x1
a
x1
a
a
b
x1
a
d
b
x1
true
2
1
a
1
1
1
0
0
1
0
1
d
1
0
1
1
1
1
4445
1
b
1
1
1
0
0
1
4447
1
c
1
1
1
0
0
1
0
1
d
1
0
0
a
1
1
0
0
0
1
0
0
b
1
1
0
d
d
x1
a
d
b
x1
a
c
a
x1
c
a
c
x1
a
b
x1
b
a
a
x1
b
b
x1
b
c
x1
b
c
x1
a
a
a
x1
a
d
c
x1
c
a
x1
a
a
b
x1
a
d
b
x1
a
c
a
x1
a
c
x1
true
Failed!
NaTT
certifiable-1.6