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