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