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