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