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