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