a-a a-c aaa aac aag aak aan aao ac- aca acc acg ack acn aco ag- aga agc agg agk agn ago aka akc akg akk akn ako an- ana anc ang ank ann ano aoa aoc aog aok aon aoo c-- caa cac cag cak can cao cca ccc ccg cck ccn cco cga cgc cgg cgn cgo cka ckc cko cn- cna cnc cng cnn cno co- coa coc cog cok con coo gaa gac gag gak gan gao gca gcc gcg gck gcn gco gga ggc ggg ggn ggo gka gkn gko gna gnc gnn gno goa goc gog gok gon goo ka- kaa kac kag kak kan kao kca kcc kcg kck kcn kga kgc kgo kkc kkk kkn kn- kna knc kng knk knn kno koa koc kog kok kon koo naa nac nag nak nan nao nca ncc ncg nck ncn nco nga ngc ngg ngk ngn ngo nka nkc nkk nkn nko nna nnc nng nnk nnn nno no- noa noc nog nok non noo oaa oac oag oak oan oao oc- oca occ ocg ock ocn oco oga ogc ogg ogn ogo oka okc okg okk oko on- ona onc ong onk onn ono oo- ooa ooc oog ook oon ooo