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