a-a a-c aaa aac aag aah aan aao ac- aca acc acg ach acn aco ag- aga agc agg agh agn ago aha ahc ahg ahh ahn aho an- ana anc ang anh ann ano aoa aoc aog aoh aon aoo c-- caa cac cag cah can cao cca ccc ccg cch ccn cco cga cgc cgg cgh cgn cgo ch- cha chc chg chh chn cho cn- cna cnc cng cnh cnn cno co- coa coc cog coh con coo gaa gac gag gah gan gao gca gcc gcg gch gcn gco gga ggc ggg ggh ggn ggo gha ghc ghg ghh ghn gho gna gnc gnn gno goa goc gog goh gon goo haa hac hag hah han hao hca hcc hcg hch hcn hco hga hgc hgg hgh hgn hgo hha hhc hhg hhh hhn hho hna hnc hng hnh hnn hno hoa hoc hog hoh hon hoo naa nac nag nah nan nao nca ncc ncg nch ncn nco nga ngc ngg ngh ngn ngo nha nhc nhg nhh nhn nna nnc nng nnh nnn nno no- noa noc nog noh non noo oaa oac oag oah oan oao oc- oca occ ocg och ocn oco oga ogc ogg ogh ogn ogo oha ohc ohg ohh ohn oho on- ona onc ong onh onn ono oo- ooa ooc oog ooh oon ooo