c-- ccc ccg ccm cco ccs cct cgc cgg cgm cgo cgs cgt cmc cmg cmm cmo cms cmt co- coc cog com coo cos cot csc csg csm cso css cst ctc ctg ctm cto cts ctt gcc gcg gcm gco gcs gct ggc ggg ggm ggo ggs ggt gmc gmg gmm gmo gms gmt goc gog gom goo gos got gsc gsg gsm gso gss gst gtc gtg gtm gto gts gtt m-o mc- mcc mcg mcm mco mcs mct mgc mgm mgo mgs mgt mmc mmg mmm mmo mms mmt moc mog mom moo mos mot msc msg msm mso mss mst mtc mtg mtm mto mts mtt oc- occ ocg ocm oco ocs oct ogc ogg ogo ogs ogt om- omc omg omm omo oms omt oo- ooc oog oom ooo oos oot os- osc osg osm oso oss ost ot- otc otg otm oto ots ott scc scg scm sco scs sct sgc sgg sgm sgo sgs sgt smc smg smm smo sms smt soc sog som soo sos sot ss- ssc ssg ssm sso sss sst stc stg stm sto sts stt tcc tcg tcm tco tcs tct tgc tgg tgm tgo tgs tgt tmc tmg tmm tmo tms tmt to- toc tog tom too tos tot tsc tsg tsm tso tss tst ttc ttg ttm tto tts ttt