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