-ic a-a a-b a-c a-i a-t aaa aab aac aae aai aam aat ab- aba abb abc abe abi abm abt ac- aca acb acc ace aci acm act aea aeb aec aee aei aem aet ai- aia aib aic aie aii aim ait ama amb amc ame ami amm amt at- ata atb atc ate ati atm att baa bab bac bae bai bam bat bba bbb bbc bbe bbi bbm bbt bca bcb bcc bce bci bcm bct be- bea beb bec bee bei bem bet bi- bia bib bic bie bii bim bit bma bmb bmc bme bmi bmm bmt bta btb btc bte bti btm btt c-- caa cab cac cae cai cam cat cba cbb cbc cbe cbi cbm cbt cca ccb ccc cce cci ccm cct ce- cea ceb cec cee cei cem cet ci- cia cib cic cie cii cim cit cma cmb cmc cme cmi cmm cmt cta ctb ctc cte cti ctm ctt eaa eab eac eae eai eam eat eba ebb ebc ebe ebi ebm ebt ec- eca ecb ecc ece eci ecm ect eea eeb eec eee eem eet eia eib eic eie eii eim eit em- ema emb emc eme emi emm emt eta etb etc ete eti etm ett ia- iaa iab iac iae iai iam iat iba ibb ibc ibe ibi ibm ibt ica icb icc ice ici icm ict ie- iea iec iee iei iem iet iia iib iic iie iii iim iit im- ima imb imc ime imi imm imt ita itb itc ite iti itm itt maa mab mac mae mai mam mat mba mbb mbc mbe mbi mbm mbt mc- mca mcb mcc mce mci mcm mct mea meb mec mee mei mem met mi- mia mib mic mie mii mim mit mma mmb mmc mme mmi mmm mmt mta mtb mtc mte mti mtm mtt taa tab tac tae tai tam tat tba tbb tbc tbe tbi tbm tbt tca tcb tcc tce tci tcm tct te- tea teb tec tee tei tem tet tia tib tic tie tii tim tit tma tmb tmc tme tmi tmm tmt tta ttb ttc tte tti ttm ttt

a-be a-ii aaaa aaab aaac aaae aaai aaam aaba aabb aabc aabi aabm aabt aaca aacb aacc aace aaci aacm aact aaea aaec aaem aaib aaic aaii aama aamb aamc aame aami aata aatc aatt abaa abab abac abae abai abam abat abb- abba abbb abbe abbi abbt abca abcb abcc abci abct abec abee abet abia abib abic abie abim abit abma abmb abmc abmt abta ac-t acaa acab acac acae acai acat acba acca accc acce acci accm acct ace- acea acec acem acet aci- acia acic acie acim acma acmc acme acmi acta actc acte acti actt aeac aebi aecb aeci aect aeit aemt aeta aetc aett aiai aiba aica aicc aice aiea aiee aiet aiia aiib aiic aimc aime aimi aimm aita aite aiti aitt amaa amac amae amai amam amat amb- amba ambe ambi amca amcc amec amee amei amet amia amib amic amie amii amit amm- amma amme ammi amta amtc amte amti at-t ataa atab atac atae atai atat atca atcc atea atec atee atei atem atia atic atie atim atit atm- atma atme atta atte atti ba-i baaa baam baat baba babb babe babi babm bac- baca bacc bace baci bact baia baib baic baie bait bama bamb bamc bame bami bamm bata batc bate bati batt bbbb bbci bbcm bbeb bbet bcaa bcam bcat bcbc bcca bccc bcci bccm bcec bcet bcia bcie bcit bcma bctc beam beat beba bebb bebe bebi beca beci beeb beem beet beia beic beim beit bema beme beta betc bete beti bett biat biba bibb bibe bibi bica bicc bice bici bieb biet bima bita bitc bite bitt bmaa bmce bmci bmic bmmi bmtc btaa btcc btec btie bttb caaa caab caac caam caat caba cabe cabi cac- caca cacc cace caci cacm caec caei caem caia caib caic caim cait cama camb camc came cami camm camt cat- cata catb catc cate cati catm catt cbac cbat cbbc cbca cbcc cbce cbcm cbct cbea cbec cbee cbet cbia cbit cbme cbta cbtc ccaa ccab ccac ccai ccam ccat ccba ccbc ccca cccb cccc ccci cccm ccee ccic ccii ccim ccma ccmb ccmc ccmm cctb cctc cctt ceac ceat ceba cec- ceca cece ceci cecm cect ceeb ceec ceem ceim cema cemb ceme cemm cet- ceta cete ceti ciaa ciam ciat ciba cibc cibe cibi cica cicc cici cict ciee ciia ciii ciit cima cimb cime cimi cimm cita citb cite citi citt cmaa cmac cmba cmbc cmcc cmea cmec cmii cmmb cmmc cmmi cmta cmtc ctab ctae ctba ctbi ctca ctec ctia ctic ctma ctta eaba eaca eacc eaec eama eame eata eate eati ebac ebam ebba ebbc ebcc ebic ebit ecaa ecac ecai ecam ecat ecbc ecbe ecca eccb eccc ecce ecci eccm ecct ecem ecib ecim ecit ecma ecmi ect- ecta ectc eeca eeea eeee eeta eetc eete eica eiec eiei eime eimi eita eitb eitc eiti eitm emac emae emam emba embe embi emcc emet emia emic emii emim emit emma emme emmi emta emte etai etam etat etbc etcc etec etee etem etic etim etta ette etti i-be iaaa iaac iaai iaat iaba iabm iaca iacc iact iaea iaec iaia iaim iama iamb iame iami iamt iata iatc iate iati ibac ibat ibbm ibca ibea ibec ibet ibia ibie ibim ibma ibtb ibtc icaa icab icac icai icam icat icbc icbm icca iccb iccc icci icct icea icec icee icem icet icma icmc icme icmi icmm icmt icta ieac ieat iecc ieet ieie iema ieme ieta ietm iett iiac iica iiie iiii iiit iimc iita iitm iitt imac imai imam imat imba imbe imbi imca imcb imci imea imec imet imit imma imme immi immt imta itaa itac itai itam itat itbe itcm itea itec item itet itia itic itie itim itma itme itta ma-i maaa