#    ____  ____  ____  ________  ____  ____  ____
# __|R   ||Z   ||S   ||Z       ||R   ||Z   ||S   |__
#
0 1 R
2 1 R
2 1 Z
4 1 Z
4 1 S
6 1 S
6 1 Z
10 1 Z
10 1 R
12 1 R
12 1 Z
14 1 Z
14 1 S
16 1 S
