2vvbb
3vvbba
4vvb
5vvbb
6vvbba
rmwbba
smwb
tmwbb
umwbba
vmwb
gdxb
hdxbb
idxbba
jdxb
kdxbb
53xbb
63xbba
73xb
83xbb
93xbba
uuybba
vuyb
wuybb
xuybba
yuyb