aaaa aaab aaac aaam aaba aabb aabc aabm aabt aaca aacb aacc aacm aact aacu aama aamb aamc aata aatc aatt abaa abab abac abam abat abau abb- abba abbb abbt abca abcb abcc abct abma abmb abmc abmt abta abtu abua abum abut ac-t acaa acab acac acat acba acca accc accm acct accu acma acmc acmu acta actc actt actu acu- acum acut amaa amac amam amat amb- amba ambu amca amcc amm- amma ammu amta amtc amua amum at-t ataa atab atac atat atca atcc atm- atma atmu atta attu atua atub atuc atum auaa auca auct auma aut- baaa baam baat baba babb babm babu bac- baca bacc bact bama bamb bamc bamm bamu bata batc batt batu bau- baum bbau bbbb bbcm bcaa bcam bcat bcbc bcca bccc bccm bcma bctc bcuc bmaa bmtc btaa btcc bttb buat buba bubb bubu buca bucc bucu bum- buma bumb but- buta butt caaa caab caac caam caat caba cabu cac- caca cacc cacm cama camb camc camm camt cat- cata catb catc catm catt catu cauc caum caut cbac cbat cbbc cbca cbcc cbcm cbct cbcu cbta cbtc ccaa ccab ccac ccam ccat ccba ccbc ccca cccb cccc cccm cccu ccma ccmb ccmc ccmm cctb cctc cctt ccuc ccut cmaa cmac cmba cmbc cmcc cmmb cmmc cmta cmtc cmtu ctab ctba ctca ctma ctta cuau cub- cuba cubb cuca cucc cucm cum- cuma cumt cut- cuta cutc cutt maaa maac maam maat maba mabu mac- maca macb macc mact macu mama mamc mamu mata matc matt matu maua maum maut mbac mbam mbba mbca mbta mcaa mcac mcat mcba mcbc mcca mccc mcmc mcmt mctc mctu mmaa mmab mmac mmcc mmcm mmct mmmc mmmm mtaa mtab mtac mtbc mtuc muac muc- mucc mucu muma mumm mumu muta mutt mutu muut taa- taat taba tabb tabc tabu taca tacc tact tama tamc tamm tamu tata tatb tatt tatu taua taub tauc taum taut tbca tbcb tbcc tbta tcam tcca tccc tccu tctc tmaa tmac tmbc tmca tmcc tmcm tmtt ttab ttbb ttma tttt tuam tuat tuba tubb tubu tuca tucc tuma tumb tumu tuta tutt tutu tuum uabc uaca uamc uata uatu uaua ubac ubba ucam ucat ucbc ucca ucmc ucua ucut umaa umac umb- umba umma umut utac utau utmb uttu uuta uuuu