aaaa aaab aaac aaam aaba aabb aabc aabm aaca aacb aacc aacm aaco aama aamb aamc aamo aaoo abaa abab abac abam abb- abba abbb abbo abca abcb abcc abma abmb abmc aboa abob aboo acaa acab acac acba acca accc accm acco acma acmc acoa acom amaa amac amam amb- amba ambo amca amcc amco amm- amma ammo amob amoc amoo aoba aoca aoma baaa baam baba babb babm babo bac- baca bacc baco bama bamb bamc bamm bbbb bbcm bcaa bcam bcbc bcca bccc bccm bcma bmaa bmoc boab boac boba bobb bobo boca bocm boco boma bomb boob booc boom c-bo caaa caab caac caam caba cabo cac- caca cacc cacm caco cama camb camc camm camo cbac cbbc cbca cbcc cbcm ccaa ccab ccac ccam ccba ccbc ccca cccb cccc cccm ccma ccmb ccmc ccmm ccob ccoc ccom cmaa cmac cmba cmbc cmcc cmmb cmmc cmoc coba cobb cobo coca coco com- coma comb comc comm como coob coom maaa maac maam maba mabo mac- maca macb macc maco mama mamc mamo maoc mbac mbam mbba mbca mcaa mcac mcba mcbc mcca mccc mcmc mmaa mmab mmac mmcc mmcm mmmc mmmm moaa moab moac moam moba mobb mobo moca moco moma momo mooa moob mooc oama obba obbo ocab ocac ocam ocbc occa occc ocma ocom omac omam omao ombo omca omma omo- omoa omoo ooaa ooba ooma oooo