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