8 19 7
1 1 1 1 1 4 1 1 1 4 5 3 2 3 2 6 7 5 4
0 5 0 0 0 0 0 0
0 2 0 0 0 4 0 5
0 6 0 0 0 0 3 0
0 0 0 0 0 0 0 0
0 0 0 0 1 0 0 0
0 0 0 3 1 0 4 0
7 0 0 0 0 0 0 0
0 1 0 0 0 0 4 2
