c-- ccc ccg ccm cco ccr cct cgc cgg cgm cgo cgr cgt cmc cmg cmm cmo cmr cmt co- coc cog com coo cor cot crc crg crm cro crr crt ctc ctg ctm cto ctr ctt gcc gcg gcm gco gcr gct ggc ggg ggm ggo ggr ggt gmc gmg gmm gmo gmr gmt goc gog gom goo gor got grc grg grm gro grr grt gtc gtg gtm gto gtr gtt m-o m-r mc- mcc mcg mcm mco mcr mct mgc mgm mgo mgr mgt mmc mmg mmm mmo mmr mmt moc mog mom moo mor mot mrc mrg mrm mro mrr mrt mtc mtg mtm mto mtr mtt oc- occ ocg ocm oco ocr oct ogc ogg ogo ogt om- omc omg omm omo omr omt oo- ooc oog oom ooo oor oot or- orc org orm oro orr ort ot- otc otg otm oto otr ott rcc rcg rcm rco rcr rct rgc rgg rgo rgr rgt rmc rmg rmm rmo rmr rmt roc rog rom roo ror rot rrc rrg rrm rrr rrt rtc rtg rtm rto rtr rtt tcc tcg tcm tco tcr tct tgc tgg tgm tgo tgr tgt tmc tmg tmm tmo tmr tmt to- toc tog tom too tor tot trc trg trm tro trr trt ttc ttg ttm tto ttr ttt