OFF 15 16 0 0 0 0 1 0 0 2 0 0 3 0 0 0 1 0 1 1 0 2 1 0 3 1 0 0 2 0 1 2 0 3 2 0 0 3 0 1 3 0 2 3 0 3 3 0 3 0 1 5 3 0 5 4 3 4 5 9 3 4 9 8 3 8 9 12 3 8 12 11 3 1 2 6 3 1 6 5 3 5 6 9 3 9 13 12 3 2 3 7 3 2 7 6 3 6 7 10 3 10 14 13 3 9 6 10 3 9 10 13