nn1of
on1ofo
pn1o
qn1of
rn1ofo
ce2ofo
de2o
ee2of
fe2ofo
ge2o
142o
242of
342ofo
442o
542of
qv3of
rv3ofo
sv3o
tv3of
uv3ofo
fm4ofo
gm4o
hm4of
im4ofo
jm4o