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9
6
1
7
3
6
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4
4
1
9
3
5
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5
8
3
4
1
1
3
6
5
4
3
8
1
5
7
6
2
3
1
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4
1
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9
3
7
3
4
5
6
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3
1
8
3
4
1
6
3
8
7
6
1
5
2
5
4
3
1
1
2
3
4
5
6
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8
9
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