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