m7pn n7pn4 o7pn4m p7pn q7pn4
byqn4 cyqn4m dyqn eyqn4 fyqn4m
0orn4m 1orn 2orn4 3orn4m 4orn
pfsn qfsn4 rfsn4m sfsn tfsn4
e6sn4 f6sn4m g6sn h6sn4 i6sn4m