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