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