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