a-a a-c aaa aac aag aah aak aan aao ac- aca acc acg ach ack acn aco ag- aga agc agg agh agk agn ago aha ahc ahg ahh ahk ahn aho aka akc akg akh akk akn ako an- ana anc ang anh ank ann ano aoa aoc aog aoh aok aon aoo c-- caa cac cag cah cak can cao cca ccc ccg cch cck ccn cco cga cgc cgg cgh cgn cgo ch- cha chc chg chh chk chn cho cka ckc ckh cko cn- cna cnc cng cnh cnn cno co- coa coc cog coh cok con coo gaa gac gag gah gak gan gao gca gcc gcg gch gck gcn gco gga ggc ggg ggh ggn ggo gha ghc ghg ghh ghn gho gka gkh gkn gko gna gnc gnn gno goa goc gog goh gok gon goo haa hac hag hah hak han hao hca hcc hcg hch hck hcn hco hga hgc hgg hgh hgk hgn hgo hha hhc hhg hhh hhk hhn hho hka hkg hkh hkk hkn hko hna hnc hng hnh hnk hnn hno hoa hoc hog hoh hok hon hoo ka- kaa kac kag kah kak kan kao kca kcc kcg kch kck kcn kga kgc kgh kgo kha khh khk khn kho kkc kkh kkk kkn kn- kna knc kng knk knn kno koa koc kog koh kok kon koo naa nac nag nah nak nan nao nca ncc ncg nch nck ncn nco nga ngc ngg ngh ngk ngn ngo nha nhc nhg nhh nhk nhn nka nkc nkk nkn nko nna nnc nng nnh nnk nnn nno no- noa noc nog noh nok non noo oaa oac oag oah oak oan oao oc- oca occ ocg och ock ocn oco oga ogc ogg ogh ogn ogo oha ohc ohg ohh ohn oho oka okc okg okk oko on- ona onc ong onh onk onn ono oo- ooa ooc oog ooh ook oon ooo