189 3
2 1 2 1 2 1 2 1 2 1 2 1 2 1 2 0 2 0 3 2 1 2 1 2 1 2 1 2 1 2 1 2 1 2 1 2 1 2 1 2 1 2 1 2 1 2 1 2 1 2 0 2 0 2 0 2 0 2 0 2 0 2 0 2 0 2 0 3 2 1 2 1 2 1 2 1 2 0 2 0 2 0 3 2 1 2 1 2 1 2 1 2 1 2 1 2 1 2 1 2