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