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