#    ____             ____  ____      ____
# __|R   |___________|S   ||Z   |____|Z   |_______
#
#         ____  ____             ____      ____
# _______|Z   ||R   |___________|S   |____|Z   |__
#
#
0 1 R
2 1 R
0 2 Z
2 2 Z
2 2 R
4 2 R
2 1 S
4 1 S
4 1 Z
6 1 Z
4 2 S
6 2 S
6 1 Z
8 1 Z
6 2 Z
8 2 Z
