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