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