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