2 9 0 0 7 1 0 0 0
0 8 0 3 0 9 0 0 6
0 4 0 0 0 0 0 0 0
9 0 7 0 8 0 2 0 4
0 0 0 9 0 0 6 0 0
0 0 8 0 2 0 9 1 3
0 2 9 7 0 4 0 3 8
8 0 5 1 0 0 0 7 9
0 7 4 0 9 0 1 6 2