a-be a-ii aaaa aaab aaac aaae aaai aaam aaba aabb aabc aabi aabm aaca aacb aacc aace aaci aacm aaco aaea aaec aaem aaib aaic aaii aama aamb aamc aame aami aamo aaoe aaoo abaa abab abac abae abai abam abb- abba abbb abbe abbi abbo abca abcb abcc abci abec abee abia abib abic abie abim abma abmb abmc aboa abob aboo acaa acab acac acae acai acba acca accc acce acci accm acco ace- acea acec acem aci- acia acic acie acim acma acmc acme acmi acoa acoe acom aeac aebi aecb aeci aeio aeom aiai aiba aibo aica aicc aice aiea aiee aiia aiib aiic aimc aime aimi aimm aimo aioc aioi amaa amac amae amai amam amb- amba ambe ambi ambo amca amcc amco amec amee amei amia amib amic amie amii amm- amma amme ammi ammo amob amoc amoi amoo aoba aoca aoce aoma ba-i baaa baam baba babb babe babi babm babo bac- baca bacc bace baci baco baia baib baic baie baio bama bamb bamc bame bami bamm bbbb bbci bbcm bbeb bcaa bcam bcbc bcca bccc bcci bccm bcec bcia bcie bcma beam beba bebb bebe bebi bebo beca beci beeb beem beia beic beim bema beme beo- biao biba bibb bibe bibi bibo bica bicc bice bici bico bieb bima bimo bio- bioc bioi bmaa bmce bmci bmic bmmi bmoc boab boac boai boba bobb bobe bobi bobo boca boce bocm boco boea boec boee boeo boi- boie boii boim boma bomb bome bomi boob booc booe boom c-bo caaa caab caac caam caba cabe cabi cabo cac- caca cacc cace caci cacm caco caec caei caem caia caib caic caim caio cama camb camc came cami camm camo caoi cbac cbbc cbca cbcc cbce cbcm cbea cbec cbee cbia cbme ccaa ccab ccac ccai ccam ccba ccbc ccca cccb cccc ccci cccm ccee ccic ccii ccim ccma ccmb ccmc ccmm ccob ccoc ccom ceac ceba cec- ceca cece ceci cecm ceco ceeb ceec ceem ceim cema cemb ceme cemm ciaa ciam ciao ciba cibc cibe cibi cibo cica cicc cici cico ciee ciia ciii cima cimb cime cimi cimm cimo ciob cmaa cmac cmba cmbc cmcc cmea cmec cmii cmmb cmmc cmmi cmoc coai coba cobb cobe cobi cobo coca coce coco coia com- coma comb comc come comm como coob coom eaba eaca eacc eaec eama eame eaom ebac ebam ebba ebbc ebbo ebcc ebic eboe eboo ecaa ecac ecai ecam ecao ecbc ecbe ecca eccb eccc ecce ecci eccm ecco ecem ecib ecim ecma ecmi eco- eeca eeea eeee eemo eeoc eiao eica eico eiec eiei eime eimi emac emae emam emba embe embi embo emcc emco emia emic emii emim emma emme emmi i-be iaaa iaac iaai iaba iabm iaca iacc iaea iaec iaia iaim iama iamb iame iami ibac ibbm ibca ibea ibec ibia ibie ibim ibma icaa icab icac icai icam icao icbc icbm icca iccb iccc icci icco icea icec icee icem icma icmc icme icmi icmm icoc icom ieac iecc ieie ieio iema ieme iiac iica iiie iiii iiio iimc iioi iioo imac imai imam imao imba imbe imbi imca imcb imci imco imea imec imma imme immi immo ioba iobi ioci ioee ioii ioio ioma iome iomo iooi iooo ma-i maaa maac maai maam maba mabe mabi mabo mac- maca macb macc mace maci maco maee maem maeo maia maib maie maii maim maio mama mamc mame mami mamo maoc maoi mbac mbam mbba mbca mbci mbia mbim mbio mcaa mcac mcba mcbc mcbi mcca mccc mcci mcia mcic mcii mcmc mcmi meai mebe mebo mec- meca mecc mece meco meem meic mema memc meme memo meoc miaa miab miac miai miam miao mibc mica micc mice mici mico miee miem miii miio mim- mima mime mimi mimo mio- mmaa mmab mmac mmai mmcc mmci mmcm mmea mmic mmii mmmc mmmm moaa moab moac moai moam moba mobb mobe mobi mobo moca moco moea moii moio moma mome momi momo mooa moob mooc mooe o-eo oaic oama obai obba obbo obea obec obia obie oboe oboi ocab ocac ocam ocbc occa occc occi oce ocee ocma ocom oec- oeca oecc oeec oeme oiba oici oiii oimb oime omac omai omam omao ombe ombo omca omee omei omeo omia omic omie omim omio omma omo- omoa omoe omoi omoo ooaa ooba oobe oobi ooia ooma oome oooo