a-ii aaaa aaab aaac aaai aaam aaba aabb aabc aabi aabm aaca aacb aacc aaci aacm aaib aaic aaii aama aamb aamc aami abaa abab abac abai abam abb- abba abbb abbi abca abcb abcc abci abia abib abic abim abma abmb abmc acaa acab acac acai acba acca accc acci accm aci- acia acic acim acma acmc acmi aiai aiba aica aicc aiia aiib aiic aimc aimi aimm amaa amac amai amam amb- amba ambi amca amcc amia amib amic amii amm- amma ammi ba-i baaa baam baba babb babi babm bac- baca bacc baci baia baib baic bama bamb bamc bami bamm bbbb bbci bbcm bcaa bcam bcbc bcca bccc bcci bccm bcia bcma biba bibb bibi bica bicc bici bima bmaa bmci bmic bmmi caaa caab caac caam caba cabi cac- caca cacc caci cacm caia caib caic caim cama camb camc cami camm 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 ciaa ciam ciba cibc cibi cica cicc cici ciia ciii cima cimb cimi cimm cmaa cmac cmba cmbc cmcc cmii cmmb cmmc cmmi iaaa iaac iaai iaba iabm iaca iacc iaia iaim iama iamb iami ibac ibbm ibca ibia ibim ibma icaa icab icac icai icam icbc icbm icca iccb iccc icci icma icmc icmi icmm iiac iica iiii iimc imac imai imam imba imbi imca imcb imci imma immi ma-i maaa maac maai maam maba mabi mac- maca macb macc maci maia maib maii maim mama mamc mami mbac mbam mbba mbca mbci mbia mbim mcaa mcac mcba mcbc mcbi mcca mccc mcci mcia mcic mcii mcmc mcmi miaa miab miac miai miam mibc mica micc mici miii mim- mima mimi mmaa mmab mmac mmai mmcc mmci mmcm mmic mmii mmmc mmmm