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