a
a
d
d
x1
d
d
b
b
x1
a
a
x1
b
b
b
b
b
b
x1
b
b
d
d
b
b
x1
a
a
c
c
x1
c
c
x1
d
d
x1
2.2
a
a
x1
b
b
b
b
b
x1
a
a
x1
b
x1
b
b
d
d
b
b
x1
c
c
x1
a
a
d
d
x1
b
b
x1
a
a
d
d
x1
b
x1
b
b
d
d
b
b
x1
a
a
c
c
x1
b
b
d
d
b
b
x1
c
x1
a
a
x1
b
b
x1
a
a
x1
b
b
b
b
x1
a
a
x1
b
b
b
b
b
b
x1
b
b
d
d
b
b
x1
a
c
c
x1
a
a
x1
b
b
b
x1
true
a
a
x1
b
b
b
x1
a
a
d
d
x1
b
x1
b
b
d
d
b
b
x1
a
c
c
x1
a
a
x1
b
b
b
b
b
b
x1
a
a
x1
b
b
b
b
x1
a
a
d
d
x1
b
b
x1
a
a
x1
b
x1
a
a
x1
b
b
x1
b
b
d
d
b
b
x1
a
a
c
c
x1
a
a
x1
b
b
b
b
b
x1
true
a
1
15923
d
1
1
b
1
15923
c
1
1
c
1
0
a
1
1
0
b
1
15923
a
a
x1
b
b
b
b
b
x1
b
b
d
d
b
b
x1
a
a
c
c
x1
a
a
x1
b
b
x1
a
a
x1
b
x1
a
a
d
d
x1
b
b
x1
a
a
x1
b
b
b
b
x1
a
a
x1
b
b
b
b
b
b
x1
a
a
d
d
x1
b
x1
a
a
x1
b
b
b
x1
c
c
x1
d
d
x1
a
a
d
d
x1
d
d
b
b
x1
b
b
d
d
b
b
x1
a
a
c
c
x1
a
a
x1
b
b
b
b
b
b
x1
a
a
d
d
x1
b
x1
a
a
d
d
x1
b
b
x1
b
b
d
d
b
b
x1
a
a
c
c
x1
a
a
x1
b
x1
a
a
x1
b
b
x1
a
a
x1
b
b
b
x1
a
a
x1
b
b
b
b
x1
a
a
x1
b
b
b
b
b
x1
a
a
x1
b
b
b
b
b
b
x1
true
a
1
1
0
d
1
1
52868
b
1
1
0
c
1
1
52868
c
1
0
a
1
1
0
b
1
1
0
a
a
x1
b
b
b
b
b
b
x1
a
a
x1
b
b
b
b
b
x1
a
a
x1
b
b
b
b
x1
a
a
x1
b
b
b
x1
a
a
x1
b
b
x1
a
a
x1
b
x1
b
b
d
d
b
b
x1
a
a
c
c
x1
c
c
x1
d
d
x1
a
a
d
d
x1
d
d
b
b
x1
b
b
d
d
b
b
x1
a
a
c
c
x1
a
a
x1
b
b
b
b
b
b
x1
b
b
d
d
b
b
x1
a
a
c
c
x1
a
a
x1
b
x1
a
a
x1
b
b
x1
a
a
x1
b
b
b
x1
a
a
x1
b
b
b
b
x1
a
a
x1
b
b
b
b
b
x1
a
a
x1
b
b
b
b
b
b
x1
true
a
1
1
2241
d
1
0
b
1
4482
c
1
0
c
1
0
a
1
1
2241
b
1
1
0
a
a
x1
b
b
b
b
b
b
x1
a
a
x1
b
b
b
b
b
x1
a
a
x1
b
b
b
b
x1
a
a
x1
b
b
b
x1
a
a
x1
b
b
x1
b
b
d
d
b
b
x1
a
a
c
c
x1
c
c
x1
d
d
x1
a
a
d
d
x1
d
d
b
b
x1
b
b
d
d
b
b
x1
a
a
c
c
x1
a
a
x1
b
b
b
b
b
b
x1
b
b
d
d
b
b
x1
a
a
c
c
x1
a
a
x1
b
b
x1
a
a
x1
b
b
b
x1
a
a
x1
b
b
b
b
x1
a
a
x1
b
b
b
b
b
x1
a
a
x1
b
b
b
b
b
b
x1
true
2
1
a
1
0
1
1
0
1
1
7
d
1
1
1
1
1
1
1
1
b
1
1
1
1
c
1
1
1
1
1
1
1
1
c
1
0
0
a
1
1
1
1
1
1
3
2
b
1
1
1
1
1
1
0
0
c
c
x1
d
d
x1
a
a
d
d
x1
d
d
b
b
x1
b
b
d
d
b
b
x1
a
a
c
c
x1
a
a
x1
b
b
b
b
b
b
x1
b
b
d
d
b
b
x1
c
c
x1
false
b
b
d
d
b
b
x1
c
x1
false
NaTT
certifiable-1.6