a-a a-c aaa aac aag aan aao aar aau ac- aca acc acg acn aco acr acu ag- aga agc agg agn ago agr agu an- ana anc ang ann ano anr anu aoa aoc aog aon aoo aor aou ar- ara arc arg arn aro arr aru au- aua auc aug aun auo aur c-- caa cac cag can cao car cau cca ccc ccg ccn cco ccr ccu cga cgc cgg cgn cgo cgr cgu cn- cna cnc cng cnn cno cnr cnu co- coa coc cog con coo cor cou cra crc crg crn cro crr cru cua cuc cug cun cuo cur cuu gaa gac gag gan gao gar gau gca gcc gcg gcn gco gcr gcu gga ggc ggg ggn ggo ggr ggu gna gnc gnn gno gnr gnu goa goc gog gon goo gor gou gra grc grg grn gro grr gru gu- gua guc gug gun guo gur guu naa nac nag nan nao nar nau nca ncc ncg ncn nco ncr ncu nga ngc ngg ngn ngo ngu nna nnc nng nnn nno nnu no- noa noc nog non noo nor nou nra nrc nrg nrn nro nrr nru nua nuc nug nun nuo nur nuu oaa oac oag oan oao oar oau oc- oca occ ocg ocn oco ocr ocu oga ogc ogg ogn ogo on- ona onc ong onn ono onr onu oo- ooa ooc oog oon ooo oor or- ora orc org orn oro orr oru ou- oua ouc oun ouo our ra- raa rac rag ran rao rar rau rca rcc rcg rcn rco rcr rcu rga rgc rgg rgn rgo rgr rna rnc rng rnn rno rnr rnu roa roc rog ron roo ror rou rra rrc rrg rrn rrr rru rua ruc rug run ruo rur ruu ua- uaa uac uag uan uao uar uau uca ucc ucg ucn uco ucr ucu uga ugc ugg ugn ugo ugr ugu un- una unc ung unn uno unr unu uoa uoc uog uon uoo uor ur- ura urc urg urn uro urr uru uua uuc uug uun uur uuu