-ana aaaa aaab aaac aaam aaan aaba aabb aabc aabm aaca aacb aacc aacm aacn aaco aama aamb aamc aamn aamo aana aaon aaoo abaa abab abac abam aban abb- abba abbb abbo abca abcb abcc abcn abma abmb abmc aboa abob abon aboo acaa acab acac acan acba acca accc accm acco acma acmc acoa acom acon amaa amac amam aman amb- amba ambn ambo amca amcc amco amm- amma ammo amno amob amoc amon amoo ana- anaa anab anac anam anan anao anba anbb anbo anca ancc anco anma anna annb anno ano- anoa anom anon aoba aoca aoma aonb aono baaa baam baan baba babb babm babo bac- baca bacc bacn baco bama bamb bamc bamm bamn bana banc bann bano baon bbbb bbcm bcaa bcam bcbc bcca bccc bccm bcma bmaa bman bmoc bnoc boab boac boan boba bobb bobo boca bocm boco boma bomb bona bonc bonn bono boob booc boom boon c-bo caaa caab caac caam caan caba cabo cac- caca cacc cacm caco cama camb camc camm camo cana canc cann cano cbac cbbc cbca cbcc cbcm cbcn cbna ccaa ccab ccac ccam ccba ccbc ccbn ccca cccb cccc cccm ccma ccmb ccmc ccmm ccna ccnb ccnc ccnm ccob ccoc ccom cmaa cmac cmba cmbc cmcc cmmb cmmc cmmn cmoc cmon cnaa cnac cnam cnbc cnbm cnco cnma cnna coan coba cobb cobo coca coco com- coma comb comc comm como con- cona conc conn cono coob coom coon maaa maac maam maan maba mabo mac- maca macb macc maco mama mamc mamo man- mana manc mann mano maoc maon mbac mbam mbba mbca mbna mcaa mcac mcan mcba mcbc mcca mccc mcmc mmaa mmab mmac mman mmcc mmcm mmmc mmmm mnaa mnac mnam mnba mnbb moaa moab moac moam moan moba mobb mobo moca moco moma momo mon- mona monc monn mono mooa moob mooc moon naaa naab naac naam naan naba nabc nabo naca nacc nacm naco nama namb namm namo nan- nana nanb nann nano naoc nbaa nbbc nbbo nbca nbcc nbco ncaa ncac ncba ncbc ncca nccc nccn ncmm ncna ncnc ncoa ncoc nman nmmc nmoc nmon nnmc nnnn noaa noac noam noba nobc nobm nobo noco nom- noma nomo non- nona nonn nono noo- noob noon nooo oama oban obba obbo obon ocab ocac ocam ocan ocbc occa occc occn ocma ocna ocom ocon omac omam oman omao ombo omca omma omn- omo- omoa omon omoo onab onam onan onc- onca onco onna onno onon ooaa ooba ooma oona oooo