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bbbb bbbs bbeb bbet bbfc bcbc bcbs bccc bccs bcec bces bcet bcfc bcsc bcss bctc bcts bcuc bebb bebe becs becu beeb beef bees beet befe beff beft bes- bese bess best betc bete bets bett betu bfcs bffs bfts bftt bscs bseb bsec bsee bses bset bsfc bsff bsfs bssc bsse bsts btcc btcs btec btfc btss bttb btus bubb bube bubs bubu bucc buce bucs bucu bueu bufc bufe buff busc buse buss bust busu but- bute buts butt buus cbbc cbbs cbcc cbce cbcs cbct cbcu cbec cbee cbef cbet cbfb cbfc cbsc cbse cbtc cbtf cbus ccbc cccb cccc cccf cccs cccu ccee ccfc ccff ccsf ccss ccst cctb cctc cctt ccuc ccus ccut cebs cebu cec- cece cecs cect ceeb ceec cees cef- cefc cesc cese cess cest cet- cete cets cfbc cfbs cfbt cfcb cfcf cfcs cffb cfse cftc cfte csbf cscb cscc csce cscf cscs csec csee cset csfc csse cstc csts csuf csus ctbs ctcf ctec ctfc ctfs ctsc ctss ctsu ctts cub- cubb cube cubs cucc cuce cues cufc cuff cusb cuss cust cusu cut- cutc cute cuts cutt ebbc ebbs ebcc ebes ebfc ebus ecbc ecbe eccb eccc ecce ecct ecef eces ecfc ecfs ecsc ecse ecss ecsu ect- ectc ectf ects ecus eecs eeee eees eefe eese eetc eete eets eetu efes efet effs eft- efts eftu esbs escb esce escs escu esee eses eset esfs esse esst essu estc este ests esuf esus etbc etcc etcs etec etee etes etfb etfc etfe etsu ette ettu eubc eufc euse fbus fcbs fccf fces fcsc fcst febs fece fect feeb fees feet fefc fefe feff fese fess fest fete fets fett fetu feus ffcc ffee ffff ffss fftf fscb fscc fsec fssc fssf ft-c ftfc ftse ftub ftuc fubb fubs fubu fuc- fuct fuet fufc fuff fufu fusc fuse fuss fust fusu fute futs futu sbbs sbcc sbcs sbct sbef sbfc sbse sbst sbtc sbus sccc scce sccs scct scec scee scet scfc scfe scsc scst scsu sctc scts scub scut se-c se-e se-f se-s se-t se-u sebe sebs sebt sec- secc sece secs sect secu seeb seec seef sees seet seeu seff seft sesc sese sess sest set- setc sete setf sets sett sfbc sfcc sfcs sffc sfss sfsu sfts sscc ssce sscs ssec ssee sses sset ssfc sssb sssc sssf ssss sstb sstc ssts stbc stbs stcc stcs stcu stec stee stef stes stet stfc stfu stsf stss sttc stub stuc stue stuf stus stut sub- subb subs suc- succ sucs suee sues suet sueu suf- sufc suff sufs sufu sus- suse suss sust susu sute sutu suus tbbs tbcb tbcc tbce tbst tcbs tccc tccu tcfc tctc tcts tebu tecs tect teec teef tees teet tefc teff teft tesc tese tess test tete tets tett tetu teut tfcu tfeb tfec tfss tftc tsbc tscc tsec tses tset tsfc tsse tssf tsst tstc tsts ttbb ttfc ttff ttss tttt tubb tube tubs tubu tucc tues tuet tufc tufe tuff tuft tufu tusc tuss tust tute tuts tutt tutu ubbe ubet ubtf ucbc uces ucfb ucsb ucsc ucsf ucst ucsu ucut uess ufcu uffe usbc usbe usbs uscc usce uscf uscs usee usef uses uset usfc usfs ussb ussc usse ussf usss usst ussu ustb ustc uste usts usus utec utes utsc uttu uutf uuuu

bbbee bbuss bcbst bebes becue becut beebe beebs beefs beeft beest beete beets beeut beffe besee beset besse beste bests besut betee betes bett- bette betts betus beust beute btc-e btstu bubbe buces bucet bucsu bufet buffe buffs buses busse bussu buste busts busut busuu butec butes butte butts butut c-bus c-tec cbeff cbeft ccccc ccett cebec cebes cebus ceese cefcu cesce cesse ceste cests cetes cette cetus cfu-e cstcc cttee cubbe cubeb cubes cubub cufeu cuffe cuffs cusec cusse custe cutcu cutee cutes cutts ebbet ectfe eeeee ef-ts ef-tu efetf effet effts efuse efutu esbus esces esect