bbbb bbbs bbcm bcbc bcbs bccc bccm bccs bcms bcsc bcsm bcss bctc bcts bcuc bmtc bmts bmus bscs bsms bsmt bssc bssm bsts btcc btcs btss bttb btus bubb bubs bubu bucc bucs bucu bum- bumb bums busc buss bust busu but- buts butt buus cbbc cbbs cbcc cbcm cbcs cbct cbcu cbms cbsc cbsm cbtc cbus ccbc cccb cccc cccm cccs cccu ccmb ccmc ccmm ccms ccss ccst cctb cctc cctt ccuc ccus ccut cmbc cmbs cmcc cmcs cmmb cmmc cmms cmsc cmst cmtc cmtu cmus csbm cscb cscc cscs csmc csmu cssm cstc cstm csts csum csus ctbs ctsc ctss ctsu ctts cub- cubb cubs cucc cucm cum- cums cumt cusb cuss cust cusu cut- cutc cuts cutt mbbs mbcs mbms mbus mcbc mccc mcmc mcmt mcss mcst mctc mcts mctu mmcc mmcm mmcs mmct mmmc mmmm mmms mmsc mmst mmsu mmts mmus mscc msmb msmc msmm msms msmu mssm msst mstc msts msus mtbc mtbs mtss mtst mtts mtuc mubs muc- mucc mucu mumm mums mumu musc muss must musu muts mutt mutu muut sbbs sbcc sbcs sbct sbmc sbst sbtc sbus sccc sccm sccs scct scmc scmm scms scsc scst scsu sctc scts scub scum scut smbc smcc smsc smss smtc smtu smus smut sscc sscs ssmc sssb sssc sssm ssss sstb sstc ssts stbc stbs stcc stcs stcu stmc stms stmt stsm stss sttc stub stuc stum stus stut sub- subb subm subs suc- succ sucs sum- sums sumu sus- suss sust susu sutu suum suus tbbs tbcb tbcc tbst tcbs tccc tccu tctc tcts tmbc tmcc tmcm tmsc tmtt tsbc tscc tsmc tssm tsst tstc tstm tsts tsum ttbb ttms ttss tttt tubb tubs tubu tucc tumb tums tumu tusc tusm tuss tust tuts tutt tutu tuum ucbc ucmc ucsb ucsc ucsm ucst ucsu ucut umb- umms umsu umts umus umut usbc usbs uscc uscm uscs usmc usmm usms ussb ussc usss usst ussu ustb ustc ustm usts usus utmb utsc uttu uuuu