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