nr2o7
or2o7t
pr2o
qr2o7
rr2o7t
ci3o7t
di3o
ei3o7
fi3o7t
gi3o
183o
283o7
383o7t
483o
583o7
qz4o7
rz4o7t
sz4o
tz4o7
uz4o7t
fq5o7t
gq5o
hq5o7
iq5o7t
jq5o