a-ha aaaa aaab aaac aaaf aaah aaam aaba aabb aabc aabh aabm aaca aacb aacc aacf aach aacm aafa aafb aafc aaff aaha aama aamb aamc abaa abab abac abaf abam abb- abba abbb abca abcb abcc abcf abch abff abha abhm abma abmb abmc acaa acab acac acba acca accc accf acch accm acfc acfm acha achh acma acmc acmf acmh afaa afam afca afcb afcc afch affa affc afma afmc ahab ahac ahah aham ahfa ahha ahmc amaa amac amah amam amb- amba amca amcc amfm amm- amma baaa baaf baah baam baba babb babm bac- baca bacc bach bafc baff baha bama bamb bamc bamf bamm bbbb bbch bbcm bbfc bcaa bcam bcbc bcca bccc bccm bcfc bcfm bcma bfca bhca bhcc bhff bmaa bmfc caaa caab caac caaf caah caam caba cabf cac- caca cacc cach cacm cafa cafb cafc caff caha cama camb camc camh camm cbac cbbc cbca cbcc cbcm cbfb cbfc cbha ccaa ccab ccac ccaf ccam ccba ccbc ccca cccb cccc cccf cccm ccfa ccfc ccff ccha ccma ccmb ccmc ccmm cfaa cfab cfac cfam cfbc cfca cfcb cfcf cfcm cffb cfma cfmb chaa chab chac chaf chah cham chca chch chcm chfa chfc chha chmb chmc cmaa cmac cmah cmba cmbc cmcc cmfb cmha cmhc cmmb cmmc faaa faac faah faam faba fabm faca facc fach fafa fafc faff faha fama fcab fcba fcca fccf fcch ffcc ffff fmca haab haaf haam haba hafb haff haha hama hamc hamm hbfc hcbc hcca hccb hccc hcch hcfa hcfc hcmc hcmm hfba hhaa hhhh hmhb hmmm maaa maac maaf maam maba mac- maca macb macc mach mafa mafb mafc maff maha mama mamc mamf mbac mbam mbba mbca mcaa mcac mcba mcbc mcca mccc mcfa mcfc mcmc mfbm mfcc mffa mhac mhmm mmaa mmab mmac mmcc mmcm mmff mmhm mmmc mmmh mmmm