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