72
 2 2 2 2 2 2 2 2 2 2 2 2 2 2 1 1 1 1 3 3 3 3 0 0 0 0 0 0 0 0 0 1 3 3 3 3 3 3 3
 3 3 3 3 3 2 2 2 2 2 2 1 2 1 1 1 1 1 1 1 1 1 1 0 0 0 0 0 0 0 0 3 0