A test level
3 3
 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0
 0 0 0 0 0 0 0 1 1 1 1 1 1 0 1 1 1 1 1 0
 0 0 1 1 1 0 0 1 0 0 0 1 4 0 010 0 0 1 0
 0 0 1 1 1 0 0 1 1 1 0 1 0 0 0 1 3 0 1 0
 0 0 1 1 1 0 0 0 0 1 0 1 0 2 2 2 2 0 1 0
 0 0 0 1 0 0 0 0 0 1 0 1 0 1 1 1 1 1 1 0
 0 0 0 1 0 0 0 1 1 1 0 1 0 1 1 1 1 1 1 0
 0 1 1 1 0 0 0 1 0 0 0 1 0 1 0 0 0 0 0 0
 0 1 0 0 0 0 0 1 0 0 0 1 0 1 0 1 1 1 1 0
 0 1 0 0 0 0 0 1 1 1 1 1 0 1 0 1 1 2 1 0
 0 1 1 1 1 1 1 1 1 1 1 1 0 1 0 1 2 2 1 0
 0 0 6 0 0 0 0 1 1 0 0 0 0 1 1 1 2 2 1 0
 0 0 1 1 1 0 0 1 1 1 1 1 0 0 0 0 0 0 1 0
 0 0 1 1 8 0 0 1 1 1 1 1 6 1 1 1 1 1 1 0
 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0
3 13 0