331 4
1 2 1 3 2 1 2 1 4 2 4 2 1 3 2 1 2 1 4 2 0 4 3 0 4 3 0 4 2 0 4 0 0 4 0 0 4 0 1 0 1 0 1 0 0 4 0 0 4 0 0 4 0 3 2 3 0 2 0 1 0 1 0 0 4 0 1 0 0 4 0 1 0 1 0 1 0 1 0 0 4 0 3 2 3 1 0 4 0 1 0 0 4 0 4 3 4 1 4 1