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