10 15 2193
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6 5 7 6
0 4 7 1
2 5 4 4
0 3 1 4
1 9 2 9
2 1 9 6
9 1 1 7
8 4 4 5
6 6 9 9
3 6 8 7
5 9 9 8
6 0 3 5
4 1 1 8
4 0 5 3
3 8 4 2
