a-ak a-ok aaaa aaab aaac aaam aaba aabb aabc aabm aaca aacb aacc aack aacm aaco aaka aama aamb aamc aamo aaoo abaa abab abac abak abam abb- abba abbb abbo abca abcb abcc abma abmb abmc aboa abob abok aboo acaa acab acac acba acca accc accm acco acma acmc acoa acom akaa akam akao akca akka akko akok akom amaa amac amam amb- amba ambo amca amcc amco amka amm- amma ammo amob amoc amok amoo aoba aoca aoma baaa baak baam baba babb babm babo bac- baca bacc back baco bak- baka bako bama bamb bamc bamm bbbb bbcm bcaa bcam bcbc bcca bccc bccm bcma bmaa bmoc boab boac boak boba bobb bobo boca bock bocm boco boka boko boma bomb boob booc book boom c-bo caaa caab caac caam caba cabo cac- caca cacc cack cacm caco caka cama camb camc camk camm camo cbac cbbc cbca cbcc cbcm cbka cbkm cbko ccaa ccab ccac ccam ccba ccbc ccca cccb cccc cccm cckm ccma ccmb ccmc ccmm ccob ccoc ccom ckac ckbc ckck ckcm ckco ckmo ckoa ckob ckoc ckom ckoo cmaa cmac cmba cmbc cmcc cmmb cmmc cmoc coak coba cobb cobo coca cock coco cok- coka coko com- coma comb comc comm como coob cook coom kaaa kaab kaak kaam kaba kabb kabc kabo kacb kacc kaco kaka kakc kakk kakm kako kam- kama kamb kamc kamm kamo kaoa kaoc kaok kbaa kbab kbac kbak kbam kbba kbbb kbbc kbbk kbbm kbbo kbca kbcb kbck kbco kbkb kbkk kbko kbmb kbmc kbmo kboa kbob kboc kbok kboo kcaa kcab kcac kcam kcba kcbc kcbk kcca kccb kccc kcck kckc kckk kckm kcko kcmb kcmc kcmk kcmm kcmo kcob kcom kkaa kkac kkam kkba kkbb kkbo kkcb kkck kkcm kkco kkkk kkma kkmc kkmk kkmo kkoa kkob kkoo kmac kmak kmam kmbc kmca kmcb kmcc kmcm kmco kmkk kmko kmmk kmmm kmmo kmoa kmob kmoc kmok kmom koab koac koak koba kobb kobc kobk kobo koca kocb kock kocm koka kokb kokc kokk koko koma komb komc komo koob kooc kook kooo maaa maac maak maam maba mabo mac- maca macb macc mack maco maka mako mama mamc mamo maoc mbac mbam mbba mbca mcaa mcac mcba mcbc mcca mccc mckk mcmc mkak mmaa mmab mmac mmcc mmcm mmmc mmmm moaa moab moac moam moba mobb mobo moca mock moco moka moko moma momo mooa moob mooc mook oama obak obba obbo obkb obok ocab ocac ocak ocam ocbc occa occc ocma ocom okak okam okka okko okmo okok okom omac omak omam omao ombo omca omma omo- omoa omoo ooaa ooak ooba ooma oooo