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