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