a-be a-ii aaaa aaab aaac aaae aaai aaar aaba aabb aabc aabi aabt aaca aacb aacc aace aaci aacr aact aaea aaec aage aaib aaic aaii aara aarc aare aari aart aata aatc aatt abaa abab abac abae abag abai abar abat abb- abba abbb abbe abbi abbr abbt abca abcb abcc abci abcr abct abec abee aber abet abia abib abic abie abig abir abit abra abrc abri abta ac-t acaa acab acac acae acag acai acar acat acba acca accc acce acci acct ace- acea acec acer acet acga acgi acgr aci- acia acic acie acir acr- acra acrc acre acri acrr acta actc acte actg acti actt aeac aebi aecb aeci aect aeer aega aeit aer- aera aerc aeri aeta aetc aetr aett agac agag agai agar agat agba agca agcc agce agct agea agee agei ager aget agga agge aggi agia agib agic agie agig agii agir agit agra agre agri agta agte agtr aiai aiba aica aicc aice aicr aiea aiee aiet aiga aiia aiib aiic aiir aira aire airi airt aita aite aiti aitr aitt arab arac arae arag arai arar arat arba arbe arbi arc- arca arce arci arct area arec aree areg arei aret arga argb arge argi aria arib arie arig arii arit arr- arra arrc arre arrg arri arrr arrt arta artc arte arti artr at-t ataa atab atac atae atai atar atat atca atcc atcr atea atec atee atei ater atia atic atie atit atra atrc atre atri atta atte atti attr ba-i baaa baar baat baba babb babe babi babr bac- baca bacc bace baci bact baer baga bage bagg bagi bagt baia baib baic baie baig bair bait bar- bara barb barc bare barg bari barr bart bata batc bate bati batt bbbb bbci bbeb bbet bbga bbrc bbrg bcaa bcar bcat bcbc bcbg bcca bccc bcci bcec bcer bcet bcia bcie bcit bcra bctc beag bear beat beba bebb bebe bebi beca beci beeb beeg beer beet bega begg begi beia beic beir beit bera berc bere berg beri berr bert beta betc bete beti bett bgca bgia biar biat biba bibb bibe bibi bica bicc bice bicg bici bieb bier biet biga bigb bigc bige bigg bigt bira birb bire birg biri birr birt bita bitc bite bitt brab brac brae brag brai brat brca brcb brce brea breb brec bree breg brei brer bret bria bric brie brig brit brrr brtc btaa btcc btec btie btrc btrt bttb caaa caab caac caat caba cabe cabg cabi cac- caca cacc cace caci cacr caec caei caer caga cage cagg cagi cagr caia caib caic cair cait cara carb carc care cari carr cart cat- cata catb catc cate cati catt cbac cbar cbat cbbc cbca cbcc cbce cbcr cbct cbea cbec cbee cber cbet cbga cbgb cbia cbir cbit cbre cbrt cbta cbtc ccaa ccab ccac ccag ccai ccar ccat ccba ccbc ccca cccb cccc ccci ccee ccga ccgc ccgt ccic ccii ccir ccra ccrc ccre ccrg ccri ccrt cctb cctc cctt ceac cear ceat ceba cec- ceca cece ceci cect ceeb ceec cege cer- cera cerc cere ceri cert cet- ceta cete ceti cgac cgcc cgcg cger ciaa ciar ciat ciba cibc cibe cibi cica cicc cici cicr cict ciee cier ciga cigi ciia ciii ciit cira cirb circ cire ciri cirr cirt cita citb cite citg citi citt crab crac crag crai crar crat crbc crca crcc crce crcr cre- crea creb crec cree creg crei cret cria crib cric crie crig crit crrt crtc ctab ctae ctag ctba ctbi ctca ctec ctge ctia ctic ctrc ctta eaba eaca eacc eaec eaga eage eara earb eare eart eata eate eati ebac ebba ebbc ebbr ebcc eber ebic ebit ecaa ecac ecai ecar ecat ecbc ecbe ecca eccb eccc ecce ecci ecct ecib ecig ecit ecra ecrc ecri ecrr ect- ecta ectc eeca eeea eeee eega eera eerc eerg eeta eetc eete egaa egae egar egat egba egbe egcc egcg egcr egea egec egee eger eggb egge eggi egir egra egre egri egta egte eica eiec eiei eier eige eigg eira eire eita eitb eitc eiti eitr erat erba erbb erbe erca ercc erce ereb erec erei erer eret erg- erga ergg ergi eria eric erie erit erra errc erre erta etag etai etat etbc etbr etcc etec etee eter etic etra etre etta ette etti gaar gaba gabb gabe gabi gabr gabt gace gaea gaec gaer gaga gage gagg gagi gaia gaie gaig gair gait gara garb gare garg gari garr gart gata gatc gate gati gatr gatt gbag gc-c gcaa gcat gcbc gccc gcet gcic gcii gcrg gctc geab geai gear geat geba gebe gebi geca gece geer geet gege gegg geia geic geie geig geir geit gera gerb gere geri gert geta getb gete getg geti gett ggbt gggg giaa giac giai giat giba gibb gibe gica gicr gier giet giga gige gigg gigi gira gire girg giri girr girt gita gite grab grac grae grai grat grbr grcc grce grea greb grec gree greg gret gria grib gric grie grig grit grrr grtc gtaa gtbr gtcr gtea gtta i-be iaaa iaac iaai iaat iaba iaca iacc iacr iact iaea iaec iaia iara iarc iare iart iata iatc iate iati ibac ibar ibat ibca ibea ibec ibeg ibet ibga ibge ibia ibie ibra ibrc ibri ibtb ibtc icaa icab icac icag icai icar icat icbc icca iccb iccc icci iccr icct icea icec icee icer icet icga icgc icra icrc icre icrr icrt icta ieac ieat iecc ieet ieie iera iere ieri ieta iett igac igar igba igbc igcc igea iger iget igga igia igra igri iiac iica iiie iiii iiit iira iirc iita iitr iitt irac irae irai irar irbe irca ircc ircg iree irer iri- iria iric irie irig irra irrc irre irri irta irte irti itaa itac itai itar itat itbe itea itec iter itet itgc itia itic itie itra itri itta raab raag raat raba rabb rabe