a-ii aaaa aaab aaac aaai aaam aaba aabb aabc aabi aabm aaca aacb aacc aaci aacm aaco aaib aaic aaii aama aamb aamc aami aamo aaoo abaa abab abac abai abam abb- abba abbb abbi abbo abca abcb abcc abci abia abib abic abim abma abmb abmc aboa abob aboo acaa acab acac acai acba acca accc acci accm acco aci- acia acic acim acma acmc acmi acoa acom aiai aiba aibo aica aicc aiia aiib aiic aimc aimi aimm aimo aioc aioi amaa amac amai amam amb- amba ambi ambo amca amcc amco amia amib amic amii amm- amma ammi ammo amob amoc amoi amoo aoba aoca aoma ba-i baaa baam baba babb babi babm babo bac- baca bacc baci baco baia baib baic baio bama bamb bamc bami bamm bbbb bbci bbcm bcaa bcam bcbc bcca bccc bcci bccm bcia bcma biao biba bibb bibi bibo bica bicc bici bico bima bimo bio- bioc bioi bmaa bmci bmic bmmi bmoc boab boac boai boba bobb bobi bobo boca bocm boco boi- boii boim boma bomb bomi boob booc boom c-bo caaa caab caac caam caba cabi cabo cac- caca cacc caci cacm caco caia caib caic caim caio cama camb camc cami camm camo caoi cbac cbbc cbca cbcc cbcm cbia ccaa ccab ccac ccai ccam ccba ccbc ccca cccb cccc ccci cccm ccic ccii ccim ccma ccmb ccmc ccmm ccob ccoc ccom ciaa ciam ciao ciba cibc cibi cibo cica cicc cici cico ciia ciii cima cimb cimi cimm cimo ciob cmaa cmac cmba cmbc cmcc cmii cmmb cmmc cmmi cmoc coai coba cobb cobi cobo coca coco coia com- coma comb comc comm como coob coom iaaa iaac iaai iaba iabm iaca iacc iaia iaim iama iamb iami ibac ibbm ibca ibia ibim ibma icaa icab icac icai icam icao icbc icbm icca iccb iccc icci icco icma icmc icmi icmm icoc icom iiac iica iiii iiio iimc iioi iioo imac imai imam imao imba imbi imca imcb imci imco imma immi immo ioba iobi ioci ioii ioio ioma iomo iooi iooo ma-i maaa maac maai maam maba mabi mabo mac- maca macb macc maci maco maia maib maii maim maio mama mamc 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 miaa miab miac miai miam miao mibc mica micc mici mico miii miio mim- mima mimi mimo mio- mmaa mmab mmac mmai mmcc mmci mmcm mmic mmii mmmc mmmm moaa moab moac moai moam moba mobb mobi mobo moca moco moii moio moma momi momo mooa moob mooc oaic oama obai obba obbo obia oboi ocab ocac ocam ocbc occa occc occi ocma ocom oiba oici oiii oimb omac omai omam omao ombo omca omia omic omim omio omma omo- omoa omoi omoo ooaa ooba oobi ooia ooma oooo