1 2 3 4 5 6 7 8 9 10 11 12 13
# ____ ____ ____ ____ ____ # __|R ||R ||S ||S ||Z |__ # 0 1 R 2 1 R 2 1 R 4 1 R 4 1 S 6 1 S 6 1 S 8 1 S 8 1 Z 10 1 Z