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