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1
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1
1
1
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1
a
1
1
1
1
1
1
1
0
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1
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0
1
0
1
0
0
a
1
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1
3
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b
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a
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b
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a
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b
b
b
b
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x1
true
2
1
a
1
1
0
1
1
1
5906
35703
b
1
1
0
0
0
1
0
0
a
1
1
3
b
1
1
0
0
0
1
0
3
a
a
a
x1
a
a
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a
a
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b
a
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b
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a
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a
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a
a
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a
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a
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a
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a
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a
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a
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a
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a
b
x1
a
b
a
x1
b
a
b
b
a
x1
a
a
x1
a
b
a
x1
NaTT
certifiable-1.6