e3rrr
f3rrrb
g3rr
h3rrr
i3rrrb
3tsrrb
4tsr
5tsrr
6tsrrb
7tsr
sktr
tktrr
uktrrb
vktr
wktrr
hburr
iburrb
jbur
kburr
lburrb
61urrb
71ur
81urr
91urrb
a2ur