-ana a-ak aaaa aaab aaac aaam aaan aaba aabb aabc aabm aaca aacb aacc aack aacm aacn aaka aama aamb aamc aamn aana abaa abab abac abak abam aban abb- abba abbb abca abcb abcc abcn abma abmb abmc acaa acab acac acan acba acca accc accm acma acmc akaa akam akan akca akka akna amaa amac amam aman amb- amba ambn amca amcc amka amm- amma ana- anaa anab anac anak anam anan anba anbb anca ancc ank- anka anma anna annb baaa baak baam baan baba babb babm bac- baca bacc back bacn bak- baka bama bamb bamc bamm bamn bana banc bank bann bbbb bbcm bcaa bcam bcbc bcca bccc bccm bcma bmaa bman caaa caab caac caam caan caba cac- caca cacc cack cacm caka cama camb camc camk camm cana canc cank cann cbac cbbc cbca cbcc cbcm cbcn cbka cbkm cbkn cbna ccaa ccab ccac ccam ccba ccbc ccbn ccca cccb cccc cccm cckm ccma ccmb ccmc ccmm ccna ccnb ccnc ccnm ckac ckan ckbc ckck ckcm cknb cknc cmaa cmac cmba cmbc cmcc cmmb cmmc cmmn cnaa cnac cnam cnbc cnbm cnma cnna kaaa kaab kaak kaam kaan kaba kabb kabc kacb kacc kaka kakc kakk kakm kakn kam- kama kamb kamc kamm kamn kana kanb kanm kann kbaa kbab kbac kbak kbam kbba kbbb kbbc kbbk kbbm kbca kbcb kbck kbkb kbkk kbmb kbmc kbna kbnn kcaa kcab kcac kcam kcba kcbc kcbk kcca kccb kccc kcck kckc kckk kckm kckn kcmb kcmc kcmk kcmm kcmn kcnb kcnm kkaa kkac kkam kkan kkba kkbb kkbn kkcb kkck kkcm kkcn kkkk kkma kkmc kkmk kknb kknm kknn kmac kmak kmam kman kmbc kmca kmcb kmcc kmcm kmcn kmkk kmmk kmmm kmna kmnb knaa knab knac knam knan knba knbb knbc knbn knca kncb knck kncm kncn knkk knmb knmc knnb knnk maaa maac maak maam maan maba mac- maca macb macc mack maka mama mamc man- mana manc mank mann mbac mbam mbba mbca mbna mcaa mcac mcan mcba mcbc mcca mccc mckk mcmc mkak mknk mmaa mmab mmac mman mmcc mmcm mmmc mmmm mnaa mnac mnam mnba mnbb naaa naab naac naam naan naba nabc nabk naca nacc nack nacm naka nama namb namm nan- nana nanb nann nbaa nbak nbbc nbca nbcc ncaa ncac ncba ncbc ncca nccc nccn ncmm ncna ncnc nkam nman nmmc nnmc nnnn