a-a a-c aaa aac aag aam aao ac- aca acc acg acm aco ag- aga agc agg agm ago ama amc amg amm amo aoa aoc aog aom aoo c-- caa cac cag cam cao cca ccc ccg ccm cco cga cgc cgg cgm cgo cma cmc cmg cmm cmo co- coa coc cog com coo gaa gac gag gam gao gca gcc gcg gcm gco gga ggc ggg ggm ggo gma gmc gmg gmm gmo goa goc gog gom goo m-o maa mac mag mam mao mc- mca mcc mcg mcm mco mga mgc mgm mgo mma mmc mmg mmm mmo moa moc mog mom moo oaa oac oag oam oao oc- oca occ ocg ocm oco oga ogc ogg ogo om- oma omc omg omm omo oo- ooa ooc oog oom ooo