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