-er a-a a-c a-t aaa aac aad aae aag aao aar aat aau ac- aca acc acd ace acg aco acr act acu ad- ada adc add ade adg ado adr adt adu aea aec aed aee aeg aeo aer aet aeu ag- aga agc agd age agg ago agr agt agu aoa aoc aod aoe aog aoo aor aot aou ar- ara arc ard are arg aro arr art aru at- ata atc atd ate atg ato atr att atu au- aua auc aud aue aug auo aur aut c-- caa cac cad cae cag cao car cat cau cca ccc ccd cce ccg cco ccr cct ccu cda cdc cdd cde cdg cdo cdr cdt cdu ce- cea cec ced cee ceg ceo cer cet ceu cga cgc cgd cge cgg cgo cgr cgt cgu co- coa coc cod coe cog coo cor cot cou cra crc crd cre crg cro crr crt cru cta ctc ctd cte ctg cto ctr ctt ctu cua cuc cud cue cug cuo cur cut cuu daa dac dad dae dag dao dar dat dau dca dcc dcd dce dcg dco dcr dct dcu dda ddc ddd dde ddg ddo ddr ddt ddu de- dea dec ded dee deg deo der det deu dga dgc dgd dge dgg dgr dgt dgu doa doc dod doe dog doo dor dot dou dra drc drd dre drg dro drr drt dru dta dtc dtd dte dtg dto dtr dtt dtu dua duc dud due dug duo dur dut eaa eac ead eae eag eao ear eat eau ec- eca ecc ecd ece ecg eco ecr ect ecu ed- eda edc edd ede edg edo edr edt edu eea eec eed eee eeg eeo eer eet ega egc egd ege egg ego egr egt egu eo- eoa eoc eod eoe eog eoo eor eot eou era erc erd ere erg ero err ert eru eta etc etd ete etg eto etr ett etu eu- eua euc eud eue eug eur eut g-d gaa gac gad gae gag gao gar gat gau gca gcc gcd gce gcg gco gcr gct gcu gda gdc gdd gde gdo gdr gdt gdu ge- gea gec ged gee geg geo ger get geu gga ggc ggd ggg ggo ggr ggt ggu goa goc god goe gog goo gor got gou gra grc grd gre grg gro grr grt gru gta gtc gtd gte gtg gto gtr gtt gtu gu- gua guc gud gue gug guo gur gut guu oaa oac oad oae oag oao oar oat oau oc- oca occ ocd ocg oco ocr oct ocu oda odc odd ode odg odo odr odt odu oea oec oed oee oeg oeo oer oet oga ogc ogd oge ogg ogo ogt oo- ooa ooc ood oog ooo oor oot or- ora orc ord ore org oro orr ort oru ot- ota otc otd ote otg oto otr ott otu ou- oua ouc oud oue ouo our out ra- raa rac rad rae rag rao rar rat rau rca rcc rcd rce rcg rco rcr rct rcu rda rdc rdd rde rdg rdo rdr rdt rdu re- rea rec red ree reg reo rer ret reu rga rgc rgd rge rgg rgo rgr rgt roa roc rod roe rog roo ror rot rou rra rrc rrd rrg rrr rrt rru rta rtc rtd rte rtg rto rtr rtt rtu rua ruc rud rue rug ruo rur rut ruu taa tac tad tae tag tao tar tat tau tca tcc tcd tce tcg tco tcr tct tcu tda tdc tdd tde tdg tdo tdr tdt tdu te- tea tec ted tee teg teo ter tet teu tga tgc tge tgg tgo tgr tgt tgu to- toa toc tod toe tog too tor tot tou tra trc trd tre trg tro trr trt tru tta ttc ttd tte ttg tto ttr ttt ttu tua tuc tud tue tug tuo tur tut tuu ua- uaa uac uad uae uag uao uar uat uau uca ucc ucd uce ucg uco ucr uct ucu uda udc udd ude udg udo udr udt udu uea uec ued uee ueg uer uet uga ugc uge ugg ugo ugr ugt ugu uoa uoc uod uoe uog uoo uor uot ur- ura urc urd ure urg uro urr urt uru uta utc utd ute uto utr utt utu uua uuc uue uug uur uut uuu