a-ak a-ok aaaa aaab aaac aaaf aaam aaba aabb aabc aabm aaca aacb aacc aacf aack aacm aaco aafa aafb aafc aaff aaka aama aamb aamc aamo aaoo abaa abab abac abaf abak abam abb- abba abbb abbo abca abcb abcc abcf abff abma abmb abmc aboa abob abof abok aboo acaa acab acac acba acca accc accf accm acco acfc acfm acma acmc acmf acoa acom afaa afak afam afao afca afcb afcc affa affc affo afka afma afmc afoa afoo akaa akam akao akca akka akko akok akom amaa amac amam amb- amba ambo amca amcc amco amfm amka amm- amma ammo amob amoc amof amok amoo aoba aoca aoma baaa baaf baak baam baba babb babm babo bac- baca bacc back baco bafc baff bafo bak- baka bako bama bamb bamc bamf bamm bbbb bbcm bbfc bcaa bcam bcbc bcca bccc bccm bcfc bcfm bcma bcof bfca bmaa bmfc bmoc boab boac boak boba bobb bobo boca bock bocm boco bofa boff boka boko boma bomb boob booc boof book boom c-bo caaa caab caac caaf caam caba cabf cabo cac- caca cacc cack cacm caco cafa cafb cafc caff caka cama camb camc camk camm camo cbac cbbc cbca cbcc cbcm cbfb cbfc cbka cbkm cbko ccaa ccab ccac ccaf ccam ccba ccbc ccca cccb cccc cccf cccm ccfa ccfc ccff cckm ccma ccmb ccmc ccmm ccob ccoc ccom cfaa cfab cfac cfam cfao cfbc cfca cfcb cfcf cfcm cfco cffb cfma cfmb cfmo cfoa cfom ckac ckbc ckck ckcm ckco ckmo ckoa ckob ckoc ckom ckoo cmaa cmac cmba cmbc cmcc cmfb cmmb cmmc cmoc coak coba cobb cobo coca cock coco cofc coff cok- coka coko com- coma comb comc comm como coob coof cook coom f--k faaa faac faam faba fabm fabo faca facc fack fafa fafc faff fafo fako fama famo fbom fcab fcba fcca fccf ffcc ffff fkab fmca foaf foak foam foba foca fock foco fofo foma fomc fomo foof fook foom kaaa kaab kaaf kaak kaam kaba kabb kabc kabf kabo kacb kacc kaco kafa kafc kaff kafm kaka kakc kakk kakm kako kam- kama kamb kamc kamm kamo kaoa kaoc kaok kbaa kbab kbac kbak kbam kbba kbbb kbbc kbbf kbbk kbbm kbbo kbca kbcb kbck kbco kbfb kbfc kbff kbfk kbfm kbfo kbkb kbkf kbkk kbko kbmb kbmc kbmo kboa kbob kboc kbok kboo kcaa kcab kcac kcam kcba kcbc kcbf kcbk kcca kccb kccc kcck kcfa kcfb kcfc kcfm kcfo kckc kckf kckk kckm kcko kcmb kcmc kcmf kcmk kcmm kcmo kcob kcof kcom kfab kfac kfbc kfbk kfcf kfcm kfco kffa kffb kfff kffk kffm kfka kfkb kfma kfmb kfmf kfmk kfmm kfmo kfok kfom kfoo kkaa kkac kkam kkba kkbb kkbo kkcb kkck kkcm kkco kkfm kkkk kkma kkmc kkmk kkmo kkoa kkob kkoo kmac kmak kmam kmbc kmca kmcb kmcc kmcf kmcm kmco kmfa kmfc kmfm kmkf kmkk kmko kmmf kmmk kmmm kmmo kmoa kmob kmoc kmok kmom koab koac koak koba kobb kobc kobk kobo koca kocb kocf kock kocm kofa kofc koff kofk kofm kofo koka kokb kokc kokf kokk koko koma komb komc komo koob kooc kook kooo maaa maac maaf maak maam maba mabo mac- maca macb macc mack maco mafa mafb mafc maff mafk maka mako mama mamc mamf mamo maoc mbac mbam mbba mbca mcaa mcac mcba mcbc mcca mccc mcfa mcfc mckk mcmc mfbm mfcc mffa mkak mkfc mkfm mmaa mmab mmac mmcc mmcm mmff mmmc mmmm moaa moab moac moaf moam moba mobb mobo moca mock moco mofa moff mofo moka moko moma momo mooa moob mooc mook oafc oafo oama obak obba obbo obkb obok ocab ocac ocak ocam ocbc occa occc ocfa ocma ocom off- offa offc offo okak okam okka okko okmo okok okom omac omak omam omao ombo omca omma omo- omoa omoo ooaa ooak ooba ooff ooma oooo