-ic c-- ccc ccg cci cck cco ccr cgc cgg cgi cgo cgr ci- cic cig cii cik cio cir ckc cki cko co- coc cog coi cok coo cor crc crg cri crk cro crr gcc gcg gci gck gco gcr ggc ggg ggi ggo ggr gic gig gii gik gio gir gko goc gog goi gok goo gor grc grg gri grk gro grr icc icg ici ick ico icr igc igg igi igk igo igr iic iii iio iir ikc iki ikk iko ikr io- ioc iog ioi ioo ior ir- irc irg iri irk iro irr kcc kcg kci kck kcr kgc kgi kgo kic kig kii kik kio kir kkc kki kkk kkr koc kog koi kok koo kor krc krg kri krk kro krr o-i oc- occ ocg oci ock oco ocr ogc ogg ogi ogo oic oii oik oio oir okc okg oki okk oko okr oo- ooc oog ooi ook ooo oor or- orc org ori ork oro orr rcc rcg rci rco rcr rgc rgg rgi rgk rgo rgr ric rig rii rik rio rir rkc rkg rkk rko roc rog roi rok roo ror rrc rrg rri rrk rrr