a-be a-ii aaaa aaab aaac aaae aaai aaba aabb aabc aabi aabt aaca aacb aacc aace aaci aact aacu aaea aaec aaib aaic aaii aata aatc aatt abaa abab abac abae abai abat abau abb- abba abbb abbe abbi abbt abca abcb abcc abci abct abec abee abet abia abib abic abie abit abiu abta abtu abua abue abut ac-t acaa acab acac acae acai acat acba acca accc acce acci acct accu ace- acea acec acet aci- acia acic acie acta actc acte acti actt actu acu- acue acut aeac aebi aecb aeci aect aeit aeta aetc aett aiai aiba aica aicc aice aiea aiee aiet aiia aiib aiic aita aite aiti aitt aitu aiui at-t ataa atab atac atae atai atat atca atcc atea atec atee atei atia atic atie atit atiu atta atte atti attu atua atub atuc auaa aube auca auce auci auct aut- aute ba-i baaa baat baba babb babe babi babu bac- baca bacc bace baci bact baia baib baic baie bait bata batc bate bati batt batu bau- bbau bbbb bbci bbeb bbet bcaa bcat bcbc bcca bccc bcci bcec bcet bcia bcie bcit bctc bcuc beat beau beba bebb bebe bebi beca beci becu beeb beet beia beic beit beta betc bete beti bett betu biat biba bibb bibe bibi bica bicc bice bici bieb biet bieu bita bitc bite bitt bitu btaa btcc btec btie bttb buat buba bubb bube bubi bubu buca bucc buce buci bucu buea bueu buic buie buit buiu but- buta bute buti butt caaa caab caac caat caba cabe cabi cabu cac- caca cacc cace caci caec caei caeu caia caib caic cait caiu cat- cata catb catc cate cati catt catu cauc caut cbac cbat cbbc cbca cbcc cbce cbct cbcu cbea cbec cbee cbet cbia cbit cbta cbtc ccaa ccab ccac ccai ccat ccba ccbc ccca cccb cccc ccci cccu ccee ccic ccii cctb cctc cctt ccuc ccut ceac ceat ceba cebu cec- ceca cece ceci cect ceeb ceec cet- ceta cete ceti ceui ciaa ciat ciau ciba cibc cibe cibi cica cicc cici cict cicu ciee ciia ciii ciit cita citb cite citi citt citu ciuc ctab ctae ctba ctbi ctca ctec ctia ctic ctta cuau cub- cuba cubb cube cubi cuca cucc cuce cuci cui- cuit cut- cuta cutc cute cutt eaba eaca eacc eaec eaiu eata eate eati ebac ebba ebbc ebcc ebic ebit ecaa ecac ecai ecat ecbc ecbe ecca eccb eccc ecce ecci ecct ecib ecit ect- ecta ectc ecua eeca eeea eeee eeta eetc eete eetu eica eiec eiei eita eitb eitc eiti etai etat etbc etcc etec etee etic etta ette etti ettu etua etui euba eubc eubi i-be iaaa iaac iaai iaat iaba iaca iacc iact iacu iaea iaec iaia iata iatc iate iati ibac ibat ibca ibea ibec ibet ibia ibie ibtb ibtc icaa icab icac icai icat icbc icca iccb iccc icci icct iccu icea icec icee icet icta icub icue ieac ieat iecc ieet ieie ieta iett iiac iica iiie iiii iiit iita iitt iiuc itaa itac itai itat itbe itea itec itet itia itic itie itta iucc iuce iuiu taa- taat taba tabb tabc tabe tabi tabu taca tacc tace taci tact taec taia tait tata tatb tate tati tatt tatu taua taub tauc taue taut tbca tbcb tbcc tbce tbit tbta tcca tccc tccu tctc teac teat teba tebu teca tect teec teet teia teic teie teiu teta tete teti tett tetu teut tiaa tiab tiba tibi tibu tica ticc tice tie- tiea tiee tiei tiet tiit tiiu tita titc tite titi titt titu ttab ttbb tttt tuae tuat tuba tubb tube tubu tuca tucc tuei tuet tuit tuiu tuta tute tuti tutt tutu u-ie uabc uaca uata uatu uaua ubac ubba ubbe ubbi ubet ubic ubii ubit ucai ucat ucbc ucca ucci ucea ucua ucut ueba uica utac utai utau utec utia utti uttu uuta uuuu