a-be a-ii aaaa aaab aaac aaad aaae aaai aaam aaba aabb aabc aabd aabi aabm aaca aacb aacc aacd aace aaci aacm aada aadc aade aadi aaea aaec aaem aaib aaic aaii aama aamb aamc aamd aame aami abaa abab abac abad abae abai abam abb- abba abbb abbe abbi abca abcb abcc abcd abci abda abdi abec abed abee abia abib abic abid abie abim abma abmb abmc acaa acab acac acad acae acai acba acca accc accd acce acci accm acda acdb acdc acde acdi acdm ace- acea acec aced acem aci- acia acic acid acie acim acma acmc acme acmi adaa adab adac adad adae adai adam adba adbc adbi adcc adci adda addc addd adde addi adea adeb adee adem adia adib adic adie adim adma admb adme admi aeac aebi aecb aeci aede aiai aiba aica aicc aicd aice aida aidb aidc aide aidi aiea aiee aiia aiib aiic aiid aimc aime aimi aimm amaa amac amad amae amai amam amb- amba ambe ambi amca amcc amda amec amed amee amei amia amib amic amid amie amii amm- amma amme ammi ba-i baaa baad baam baba babb babe babi babm bac- baca bacc bace baci bada badb badd bade badi baed baia baib baic baid baie bama bamb bamc bame bami bamm bbad bbbb bbci bbcm bbdd bbeb bcaa bcam bcbc bcca bccc bcci bccm bcda bcde bcec bcia bcie bcma bdbc bddc bdii bdmi bead beam beba bebb bebe bebi beca beci beda bede bedi beeb beed beem beia beic beim bema beme biad biba bibb bibe bibi bica bicc bice bici bida bide bidi bieb bied bima bmaa bmce bmci bmdb bmic bmmi c-cd caaa caab caac caam caba cabe cabi cac- caca cacc cace caci cacm cada cadc cadd cade cadi cadm caec caei caem caia caib caic caid caim cama camb camc came cami camm cbac cbbc cbca cbcc cbce cbcm cbdb cbdc cbdi cbea cbec cbee cbia cbid cbme ccaa ccab ccac ccad ccai ccam ccba ccbc ccca cccb cccc ccci cccm ccdc ccdi ccdm cced ccee ccic ccid ccii ccim ccma ccmb ccmc ccmd ccmm cd-e cdaa cdac cdad cdai cdba cdda cddb cdec cdic cdii cdma ceac cead ceba cec- ceca cece ceci cecm ceda cedd cede cedi ceeb ceec ceem ceim cema cemb ceme cemm ciaa ciam ciba cibc cibe cibi cica cicc cici cida cidc cide cidi ciee ciia ciid ciii cima cimb cimd cime cimi cimm cmaa cmac cmba cmbc cmcc cmda cmdb cmea cmec cmii cmmb cmmc cmmi daab daad daae daam daba dabb daca dace daci dada dade dadi daeb daem daia daid daie daim dama damb dame dami damm dbcc dcbc dcca dccb dccc dcci dcdb dcia dcii dcim dcma dcmi dddd ddie deac dead deae deba debe debi dec- deca decc decd dece deci deda dedd dede dedi deeb deed deem deid deie deim dem- dema demb demd deme demi dia- diab diac diad diam diba dibb dibe dica dice dici dida dide didi diea dieb died diem diii dima dime dimi dimm dmaa dmab dmac dmae dmba dmcc dmcm dmdc dmea eaba eaca eacc eada eadb eadd eadi eaec eama eame ebac ebam ebba ebbc ebcc ebed ebic ebid ecaa ecac ecad ecai ecam ecbc ecbe ecca eccb eccc ecce ecci eccm ecdc eced ecem ecib ecim ecma ecmi edac edad edam edca edda eddc edde eddi eddm ede- edea edei edem edia edie edma edme eeca eede eeea eeee eica eid- eide eidi eiec eied eiei eime eimi emac emad emae emam emba embd embe embi emcc emia emic emid emii emim emma emme emmi i-be iaaa iaac iaai iaba iabm iaca iacc iadb iadc iaea iaec iaia iaim iama iamb iame iami ibac ibad ibbm ibca ibea ibec ibed ibia ibid ibie ibim ibma icaa icab icac icad icai icam icbc icbd icbm icca iccb iccc icci icdc icdd icde icea icec iced icee icem icma icmc icme icmi icmm idad idae idam idbe idbm idca idce idda iddm idea idec ided idee idem idia idic idid idie ieac iecc iedm ieie iema ieme iiac iica iicd iida iide iied iiie iiii iimc imac imad imai imam imba imbe imbi imca imcb imci imdb imdi imea imec imed imid imma imme immi ma-i maaa maac maad maai maam maba mabe mabi mac- maca macb macc macd mace maci mada madb madc madd made madi maee maem maia maib maid maie maii maim mama mamc mame mami mbac mbam mbba mbca mbci mbda mbdb mbed mbia mbim mcaa mcac mcad mcba mcbc mcbi mcca mccc mccd mcci mcdc mcdd mcde mcdi mced mcia mcic mcii mcmc mcmi mdac mdai mdca mdcc mdci mddm mdea mdia mdic mdii mdma mdmc mdme mead meai mebe mec- meca mecc mecd mece meda medb medd mede medi meed meem meic meid mema memc meme miaa miab miac miai miam mibc mica micc micd mice mici mid- mida mide midi miee miem miii mim- mima mimd mime mimi mmaa mmab mmac mmai mmcc mmcd mmci mmcm mmda mmdb mmdc mmdi mmea mmic mmii mmmc mmmd mmmm