a-a a-b a-c aaa aab aac aag aam aas aau ab- aba abb abc abg abm abs abu ac- aca acb acc acg acm acs acu ag- aga agb agc agg agm ags agu ama amb amc amg amm ams amu as- asa asb asc asg asm ass asu au- aua aub auc aug aum aus b-u baa bab bac bag bam bas bau bba bbb bbc bbg bbm bbs bbu bca bcb bcc bcg bcm bcs bcu bga bgb bgc bgg bgm bgs bgu bma bmb bmc bmg bmm bms bmu bsa bsb bsc bsg bsm bss bsu bua bub buc bug bum bus buu c-- caa cab cac cag cam cas cau cba cbb cbc cbg cbm cbs cbu cca ccb ccc ccg ccm ccs ccu cga cgb cgc cgg cgm cgs cgu cma cmb cmc cmg cmm cms cmu csa csb csc csg csm css csu cua cub cuc cug cum cus cuu gaa gab gac gag gam gas gau gba gbc gbg gbm gbs gbu gca gcb gcc gcg gcm gcs gcu gga ggb ggc ggg ggm ggs ggu gma gmb gmc gmg gmm gms gsa gsb gsc gsg gsm gss gsu gu- gua gub guc gug gum gus guu maa mab mac mag mam mas mau mba mbb mbc mbg mbm mbs mbu mc- mca mcb mcc mcg mcm mcs mcu mga mgb mgc mgm mgs mgu mma mmb mmc mmg mmm mms mmu msa msb msc msg msm mss msu mua mub muc mug mum mus muu saa sab sac sag sam sas sau sba sbb sbc sbg sbm sbs sbu sca scb scc scg scm scs scu sga sgb sgc sgg sgm sgs sgu sma smb smc smg smm sms smu ss- ssa ssb ssc ssg ssm sss ssu sua sub suc sug sum sus suu ua- uaa uab uac uag uam uas uau uba ubb ubc ubg ubs ubu uca ucb ucc ucg ucm ucs ucu uga ugb ugc ugg ugm ugs ugu um- uma umb umc umg umm ums umu usa usb usc usg usm uss usu uua uuc uug uum uus uuu

aaaa aaab aaac aaam aaas aaba aabb aabc aabm aaca aacb aacc aacm aacs aacu aama aamb aamc aams aasa aasc aasm aass aasu aaus abaa abab abac abag abam abas abau abb- abba abbb abbs abca abcb abcc abcs abma abmb abmc abms abs- absa abss absu abua abug abum abus acaa acab acac acag acas acba acca accc accm accs accu acga acgs acma acmc acmg acms acmu acsa acsc acsm acss acu- acum acus agac agag agam agas agau agba agca agcc agga aggu agma agmc agms agsa agsg agsm agsu agua agus amaa amac amag amam amas amb- amba ambs ambu amca amcc amcs amga amm- amma ammu amsa amsc amss amua amum asaa asab asac asag asam asas asau asba asbm asbu asc- asca ascb ascc asma asmm asms assa assc asss assu asub asum asus auaa auca auga augs auma ausa ausm ausu auug baaa baam baas baba babb babm babs babu bac- baca bacc bacs baga bagg bags bama bamb bamc bamm bams bamu basa basc bass basu bau- baug baum bbas bbau bbbb bbbs bbcm bbga bbgm bbmg bcaa bcam bcas bcbc bcbg bcbs bcca bccc bccm bccs bcgs bcma bcms bcsa bcsc bcsm bcss bcuc bgca bggs bmaa bmag bmgs bmus bsaa bsac bsam bsas bscs bsgs bsms bssc bssm buba bubb bubs bubu buca bucc bucs bucu buga bugg bugs bum- buma bumb bums busa busc buss busu buus caaa caab caac caam caas caba cabg cabs cabu cac- caca cacc cacm caga cagg cags cama camb camc camm cams casa casb casc casm cass casu cauc caum caus cbac cbbc cbbs cbca cbcc cbcm cbcs cbcu cbga cbgb cbms cbsa cbsc cbsm cbus ccaa ccab ccac ccag ccam ccas ccba ccbc ccca cccb cccc cccm cccs cccu ccga ccgc ccgs ccma ccmb ccmc ccmm ccms ccsa ccsg ccss ccuc ccus cgac cgas cgcc cgcg cggs cgmc cgsb cgsm cgss cmaa cmac cmas cmba cmbc cmbs cmcc cmcs cmmb cmmc cmms cmsa cmsc cmus csaa csab csac csas csbm cscb cscc cscs csma csmc csmu cssa cssm csua csum csus cuau cub- cuba cubb cubs cuca cucc cucm cuga cum- cuma cums cusa cusb cusg cuss cusu gaas gaba gabb gabs gabu gaga gagg gags gagu gam- gama gamb gamm gams gasa gasb gasc gass gaua gaub gaum gaus gbag gbas gbbs gbmc gc-c gcaa gcbc gccc gccs gcma gcmc gcms gcss gcsu gggg ggss gmac gmcs gsab guaa guac guag guam guba gubb gubs gubu guca guga gugb gugg gugu guma gumb gumm gums gusa gusb guss guus maaa maac maag maam maas maba mabs mabu mac- maca macb macc macs macu maga magg mags magu mama mamc mams mamu masa masc mass masu maua maum maus mbac mbam mbas mbba mbbs mbca mbcs mbms mbus mcaa mcac mcas mcba mcbc mcca mccc mcga mcmc mcsa mcss mcug mgam mgbs mgga mgsm mgus mmaa mmab mmac mmas mmcc mmcg mmcm mmcs mmmc mmmm mmms mmsc mmsu mmus msaa msas msau msba msca mscc msgs msma msmb msmc msmm msms msmu mssa mssg mssm msus muac mubs muc- mucc mucu muga mugg mugs mugu muma mumm mums mumu musa musc muss musu sa-c saab saac saag saam saas saba sabb sabc sabs sabu saca sacc sacs sacu saga sagg sags sagu sam- sama samc samm sams samu sasa sasc sasm sass saua sauc saum saus sbaa sbac sbas sbbs sbca sbcc sbcs sbma sbmc sbsa sbus scaa scab scac scag scam scas scba sccc sccm sccs scgs scma scmc scmm scms scsa scsc scsu scua scub scug scum sgaa sgac sgau sgca sgcb sgcg sggg sggs sgsm sgss smaa smac smas smba smbc smcc smgs smsc smss smug smus ssaa ssab ssac ssam ssas ssau ssca sscc sscs ssgs ssmc sssa sssb sssc sssm ssss suam suas sub- suba subb subg subm subs suc- succ sucs sug- suga