-ic c-- ccc ccg cci cck cco ccr cct cgc cgg cgi cgo cgr cgt ci- cic cig cii cik cio cir cit ckc cki cko ckt co- coc cog coi cok coo cor cot crc crg cri crk cro crr crt ctc ctg cti ctk cto ctr ctt gcc gcg gci gck gco gcr gct ggc ggg ggi ggo ggr ggt gic gig gii gik gio gir git gko gkt goc gog goi gok goo gor got grc grg gri grk gro grr grt gtc gtg gti gtk gto gtr gtt icc icg ici ick ico icr ict igc igg igi igk igo igr igt iic iii iio iir iit ikc iki ikk iko ikr ikt io- ioc iog ioi ioo ior iot ir- irc irg iri irk iro irr irt itc itg iti itk ito itt k-t kcc kcg kci kck kcr kct kgc kgi kgo kic kig kii kik kio kir kit kkc kki kkk kkr kkt koc kog koi kok koo kor kot krc krg kri krk kro krr krt ktc ktg ktk kto ktr ktt o-i oc- occ ocg oci ock oco ocr oct ogc ogg ogi ogo ogt oic oii oik oio oir oit okc okg oki okk oko okr oo- ooc oog ooi ook ooo oor oot or- orc org ori ork oro orr ort ot- otc otg oti otk oto otr ott rcc rcg rci rco rcr rct rgc rgg rgi rgk rgo rgr rgt ric rig rii rik rio rir rit rkc rkg rkk rko rkt roc rog roi rok roo ror rot rrc rrg rri rrk rrr rrt rtc rtg rti rtk rto rtr rtt tcc tcg tci tck tco tcr tct tgc tgg tgi tgk tgo tgr tgt tic tig tii tik tio tir tit tkc tkg tkk tko tkr tkt to- toc tog toi tok too tor tot trc trg tri trk tro trr trt ttc ttg tti ttk tto ttr ttt