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