aaaa aaab aaac aaam aaba aabb aabc aabm aabt aaca aacb aacc aacm aact aama aamb aamc aata aatc aatt abaa abab abac abam abat abb- abba abbb abbt abca abcb abcc abct abma abmb abmc abmt abta ac-t acaa acab acac acat acba acca accc accm acct acma acmc acta actc actt amaa amac amam amat amb- amba amca amcc amm- amma amta amtc at-t ataa atab atac atat atca atcc atm- atma atta baaa baam baat baba babb babm bac- baca bacc bact bama bamb bamc bamm bata batc batt bbbb bbcm bcaa bcam bcat bcbc bcca bccc bccm bcma bctc bmaa bmtc btaa btcc bttb caaa caab caac caam caat caba cac- caca cacc cacm cama camb camc camm camt cat- cata catb catc catm catt cbac cbat cbbc cbca cbcc cbcm cbct cbta cbtc ccaa ccab ccac ccam ccat ccba ccbc ccca cccb cccc cccm ccma ccmb ccmc ccmm cctb cctc cctt cmaa cmac cmba cmbc cmcc cmmb cmmc cmta cmtc ctab ctba ctca ctma ctta maaa maac maam maat maba mac- maca macb macc mact mama mamc mata matc matt mbac mbam mbba mbca mbta mcaa mcac mcat mcba mcbc mcca mccc mcmc mcmt mctc mmaa mmab mmac mmcc mmcm mmct mmmc mmmm mtaa mtab mtac mtbc taa- taat taba tabb tabc taca tacc tact tama tamc tamm tata tatb tatt tbca tbcb tbcc tbta tcam tcca tccc tctc tmaa tmac tmbc tmca tmcc tmcm tmtt ttab ttbb ttma tttt