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