bbbb bbbs bbci bcbc bcbp bcbs bccc bcci bccs bcis bcpp bcps bcsc bcss bcuc bcup bibb bibi bibs bicc bici bics biis bipp bips bipu bis- bisc bisp biss bisu bpcp bpsu bsci bscp bscs bsic bspp bssc bsup bubb bubi bubs bubu bucc buci bucs bucu buic buis buiu bupc bups busc busi buss busu buus cbbc cbbs cbcc cbcp cbcs cbcu cbpc cbpp cbsc cbsi cbus ccbc cccb cccc ccci cccp cccs cccu ccic ccii ccip ccis ccpp ccps ccsi ccsp ccss ccuc ccup ccus cibc cibi cicc cici cics cicu ciii ciis cipp cips cis- cisc cisp ciss ciuc ciup cius cpbc cpcs cpcu cpic cpps cpsc cpsu cpus cscb cscc csci cscs csib csis cspb cspc cspi csps csup csus cub- cubb cubi cubs cucc cuci cui- cuis cupp cups cusb cusp cuss cusu ibcs ibis ibss ibus icbc icbp icbs iccb iccc icci iccp iccs iccu icis icpc icps icsb icsc icsi icsp icss icub icup icus iiii iiis iisc iisi iisp iisu iiuc ipcc ipcs ippc ipsc ipsi ipsp ipss ipus iscc isci iscp iscs iscu isic isis ispc isps issc issi issp isss issu isup isus iucc iuiu iupp iuss pbcc pbsp pcbc pcbs pccc pccs pcip pcpb pcpp pcps pibb pibi picc pici pics picu piip pipi pipp pips pisi piss pisu pius ppcc ppci ppcs ppib ppic pppp ppps ppss psci pscu psip psis pspi pspp psps pssc pubs pubu puis puiu pupi pups pupu pusi puss puuc s-ib s-ic s-ii sbbs sbcc sbcs sbic sbsi sbsp sbus scbi sccc sccp sccs sci- scic scip scis scpb scpi scps scsc scsi scsu scub scup sibc sibi sibs sibu sicc sici sicp sics sicu sipc sipi sipp sips sisc sisi siss sisu siui sius spcc spcs spib spic spip spis spps spsp spss spui spus sscc ssci sscp sscs ssis sspc ssps sssb sssc sssi ssss sub- subb subi subs suc- succ suci sucs suis sup- supp sups sus- susi susp suss susu suus ubbi ubic ubii ubis ubpc ucbc ucci uccp ucpb ucsb ucsc ucsu uipi upci upcs upic upis uppc uppp uppu upsc upsi upup usbc usbs uscc uscs usip usis uspc uspp usps ussb ussc usss ussu usui usus uucp uusi uuuu