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