19 10
 3 0 4 5 0 1 2 0 3 0
 0 3 0 4 0 6 0 3 2 0
 0 2 3 0 0 8 3 4 0 0
 0 2 0 4 0 6 0 2 0 3
 6 0 3 0 4 5 0 6 2 0
 5 0 2 0 6 0 7 0 2 2
 0 6 0 4 3 0 2 0 5 6
 0 4 0 5 0 7 0 8 0 9
 2 0 3 0 7 0 4 3 0 2
 0 5 0 6 0 8 0 5 0 2
 0 0 3 0 2 0 0 2 0 2
 0 0 0 0 0 0 0 0 0 0
 2 0 0 4 0 5 4 0 3 2
 2 0 0 3 0 2 2 0 3 2
 5 0 3 0 0 1 1 0 1 1
 4 0 2 0 2 1 2 0 3 3
 2 0 3 2 4 0 3 2 0 0
 4 0 3 0 2 2 0 0 2 0
 3 3 0 4 4 0 5 5 0 1