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