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