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