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