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