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