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