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