yu1o
zu1o0
0u1o0b
1u1o
2u1o0
nl2o0
ol2o0b
pl2o
ql2o0
rl2o0b
cc3o0b
dc3o
ec3o0
fc3o0b
gc3o
123o
223o0
323o0b
423o
523o0
qt4o0
rt4o0b
st4o
tt4o0
ut4o0b