-er a-a a-c a-t aaa aac aae aag aao aar aat aau ac- aca acc ace acg aco acr act acu aea aec aee aeg aeo aer aet aeu ag- aga agc age agg ago agr agt agu aoa aoc aoe aog aoo aor aot aou ar- ara arc are arg aro arr art aru at- ata atc ate atg ato atr att atu au- aua auc aue aug auo aur aut c-- caa cac cae cag cao car cat cau cca ccc cce ccg cco ccr cct ccu ce- cea cec cee ceg ceo cer cet ceu cga cgc cge cgg cgo cgr cgt cgu co- coa coc coe cog coo cor cot cou cra crc cre crg cro crr crt cru cta ctc cte ctg cto ctr ctt ctu cua cuc cue cug cuo cur cut cuu eaa eac eae eag eao ear eat eau ec- eca ecc ece ecg eco ecr ect ecu eea eec eee eeg eeo eer eet ega egc ege egg ego egr egt egu eo- eoa eoc eoe eog eoo eor eot eou era erc ere erg ero err ert eru eta etc ete etg eto etr ett etu eu- eua euc eue eug eur eut gaa gac gae gag gao gar gat gau gca gcc gce gcg gco gcr gct gcu ge- gea gec gee geg geo ger get geu gga ggc ggg ggo ggr ggt ggu goa goc goe gog goo gor got gou gra grc gre grg gro grr grt gru gta gtc gte gtg gto gtr gtt gtu gu- gua guc gue gug guo gur gut guu oaa oac oae oag oao oar oat oau oc- oca occ ocg oco ocr oct ocu oea oec oee oeg oeo oer oet oga ogc oge ogg ogo ogt oo- ooa ooc oog ooo oor oot or- ora orc ore org oro orr ort oru ot- ota otc ote otg oto otr ott otu ou- oua ouc oue ouo our out ra- raa rac rae rag rao rar rat rau rca rcc rce rcg rco rcr rct rcu re- rea rec ree reg reo rer ret reu rga rgc rge rgg rgo rgr rgt roa roc roe rog roo ror rot rou rra rrc rrg rrr rrt rru rta rtc rte rtg rto rtr rtt rtu rua ruc rue rug ruo rur rut ruu taa tac tae tag tao tar tat tau tca tcc tce tcg tco tcr tct tcu te- tea tec tee teg teo ter tet teu tga tgc tge tgg tgo tgr tgt tgu to- toa toc toe tog too tor tot tou tra trc tre trg tro trr trt tru tta ttc tte ttg tto ttr ttt ttu tua tuc tue tug tuo tur tut tuu ua- uaa uac uae uag uao uar uat uau uca ucc uce ucg uco ucr uct ucu uea uec uee ueg uer uet uga ugc uge ugg ugo ugr ugt ugu uoa uoc uoe uog uoo uor uot ur- ura urc ure urg uro urr urt uru uta utc ute uto utr utt utu uua uuc uue uug uur uut uuu