-er a-a a-c a-t aaa aac aae aaf aag aao aar aat ac- aca acc ace acf acg aco acr act aea aec aee aef aeg aeo aer aet af- afa afc afe aff afg afo afr aft ag- aga agc age agf agg ago agr agt aoa aoc aoe aof aog aoo aor aot ar- ara arc are arf arg aro arr art at- ata atc ate atf atg ato atr att c-- caa cac cae caf cag cao car cat cca ccc cce ccf ccg cco ccr cct ce- cea cec cee cef ceg ceo cer cet cfa cfc cfe cff cfg cfo cfr cft cga cgc cge cgg cgo cgr cgt co- coa coc coe cof cog coo cor cot cra crc cre crf crg cro crr crt cta ctc cte ctf ctg cto ctr ctt eaa eac eae eaf eag eao ear eat ec- eca ecc ece ecf ecg eco ecr ect eea eec eee eef eeg eeo eer eet ef- efa efc efe eff efg efo efr eft ega egc ege egf egg ego egr egt eo- eoa eoc eoe eof eog eoo eor eot era erc ere erf erg ero err ert eta etc ete etf etg eto etr ett faa fac fae faf fag fao far fat fca fcc fce fcf fcg fco fcr fct fea fec fee fef feg feo fer fet ffa ffc ffe fff ffg ffo ffr fft fga fgc fge fgf fgg fgr fgt foa foc foe fof fog foo for fot fra frc fre frf frg fro frr frt fta ftc fte ftf ftg fto ftr ftt gaa gac gae gaf gag gao gar gat gca gcc gce gcf gcg gco gcr gct ge- gea gec gee gef geg geo ger get gfa gfc gfe gff gfo gfr gft gga ggc ggg ggo ggr ggt goa goc goe gof gog goo gor got gra grc gre grf grg gro grr grt gta gtc gte gtf gtg gto gtr gtt oaa oac oae oaf oag oao oar oat oc- oca occ ocf ocg oco ocr oct oea oec oee oef oeg oeo oer oet of- ofa ofc ofe off ofg ofo ofr oft oga ogc oge ogf ogg ogo ogt oo- ooa ooc oof oog ooo oor oot or- ora orc ore orf org oro orr ort ot- ota otc ote otf otg oto otr ott ra- raa rac rae raf rag rao rar rat rca rcc rce rcf rcg rco rcr rct re- rea rec ree ref reg reo rer ret rfa rfc rfe rff rfg rfo rfr rft rga rgc rge rgf rgg rgo rgr rgt roa roc roe rof rog roo ror rot rra rrc rrf rrg rrr rrt rta rtc rte rtf rtg rto rtr rtt taa tac tae taf tag tao tar tat tca tcc tce tcf tcg tco tcr tct te- tea tec tee tef teg teo ter tet tfa tfc tfe tff tfg tfo tfr tft tga tgc tge tgf tgg tgo tgr tgt to- toa toc toe tof tog too tor tot tra trc tre trf trg tro trr trt tta ttc tte ttf ttg tto ttr ttt

aaaa aaac aaae aaaf aaar aaca aacc aace aacf aaco aacr aact aaea aaec aafa aafc aaff aage aaoe aaoo aara aarc aare aaro aart aata aatc aatf aatt ac-t acaa acac acae acag acar acat acca accc acce accf acco acct ace- acea acec acer acet acfc acfe acft acga acgr acoa acoe acog acor acot acr- acra acrc acre acro acrr acta actc acte actf actg acto actt aeac aeaf aect aeer aega aer- aera aerc aero aeta aetc aetf aeto aetr aett afaa afao afar afat afca afcc afee afer afet affa affc affo afft afgf afoa afoe afog afoo afor afr- afra afrc afre afro afta aftc afte ag-o agac agag agao agar agat agca agcc agce agco agct agea agee ager aget agfa agga agge agog agoo agot agra agre agro agta agte agtr aoca aoce aora aort aotc aotf arac arae araf arag arar arat arc- arca arce arco arct area arec aree aref areg areo aret arfa arfc arff arft arga arge argo aroa aroe aroo aror arr- arra arrc arre arrg arro arrr arrt arta artc arte arto artr at-t ataa atac atae atar atat atca atcc atcf atco atcr atea atec atee atef ateo ater atfc atfe atgo atoc atoe atof ator atot atra atrc atre atro atta atte atto attr caaa caac caaf caat cac- caca cacc cace caco cacr caec caer cafa cafc cafe caff caga cage cagg cago cagr caor cara carc care carf caro carr cart cat- cata catc cate catf cato catt ccaa ccac ccaf ccag ccar ccat ccca cccc cccf ccee ccfa ccfc ccff ccga ccgc ccgt ccoc ccra ccrc ccre ccrf ccrg ccrt cctc cctt ceac cear ceat cec- ceca cece ceco cect ceec cef- cefa cefc cege cego ceor cer- cera cerc cere cerf cero cert cet- ceta cete ceto cfaa cfac cfae cfao cfar cfca cfcf cfco cffr cfgo cfoa cfor cfra cfre cfrg cfrt cfta cftc cfte cftr cgac cgcc cgcg cger cgfc cgro coag coat coca coce coco coct cofc cofe coff coft cogo coof coot cor- cora corc core corf corg coro corr cort cota cotc cote coto cott crac craf crag crar crat crca crcc crce crcr cre- crea crec cree creg creo cret crfc croc croe croo cror crot crrt crtc crtf ctae ctag ctca ctcf ctec ctfc ctfo ctge ctgf ctor ctot ctrc ctta eaaf eaca eacc eaec eaga eage eara eare earo eart eata eate ecaa ecac ecao ecar ecat ecca eccc ecce ecco ecct ecef ecfa ecfc ecfr eco- ecog ecot ecra ecrc ecrf ecrr ect- ecta ectc ectf ecto eeca eeea eeee eefa eefe eega eeoc eera eerc eerg eero eeta eetc eete ef-g efca efco efeo efet effa efor eft- efta egaa egae egao egar egat egcc egcg egcr egea egec egee eger egfr egge