#    ____                       ____  ________
# __|A   |_____________________|B   ||Z       |__
#
#         ____  ________  ____
# _______|D   ||Z       ||E   |______________
#
#
0 1 A
2 1 A
0 2 D
2 2 D
2 2 Z
6 2 Z
6 2 E
8 2 E
2 1 B
4 1 B
4 1 Z
8 1 Z