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