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