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