-ic -up b-p b-u bbb bbc bbi bbp bbr bbs bbt bbu bcb bcc bci bcp bcr bcs bct bcu bi- bib bic bii bip bir bis bit biu bpb bpc bpi bpp bpr bps bpt bpu brb bri brp brr brs brt bru bsb bsc bsi bsp bsr bss bst bsu btb btc bti btp btr bts btt btu bub buc bui bup bur bus but buu c-- cbb cbc cbi cbp cbr cbs cbt cbu ccb ccc cci ccp ccr ccs cct ccu ci- cib cic cii cip cir cis cit ciu cpb cpc cpi cpp cpr cps cpt cpu crb crc cri crp crr crs crt cru csb csc csi csp csr css cst csu ctb ctc cti ctp ctr cts ctt ctu cub cuc cui cup cur cus cut cuu ibb ibc ibi ibp ibr ibs ibt ibu icb icc ici icp icr ics ict icu iib iic iii iip iir iis iit iiu ipb ipc ipi ipp ipr ips ipt ipu ir- irb irc iri irp irr irs irt iru is- isb isc isi isp isr iss ist isu itb itc iti itp its itt itu iu- iub iuc iui iup iur ius iut p-p pbb pbc pbi pbp pbr pbs pbt pbu pcb pcc pci pcp pcr pcs pct pcu pib pic pii pip pir pis pit piu ppb ppc ppi ppp ppr pps ppt ppu prb prc pri prp prr prs prt pru ps- psb psc psi psp psr pss pst psu pt- ptb ptc pti ptp ptr pts ptt ptu pub puc pui pup pur pus put puu rbb rbc rbi rbp rbr rbs rbt rbu rcb rcc rci rcp rcr rcs rct rcu rib ric rii rip rir ris rit rpb rpc rpi rpp rpr rps rpt rpu rrb rrc rri rrp rrr rrs rrt rru rsb rsc rsi rsp rsr rss rst rsu rtb rtc rti rtp rtr rts rtt rtu rub ruc rui rup rur rus rut ruu sbb sbc sbi sbp sbr sbs sbt sbu scb scc sci scp scr scs sct scu sib sic sii sip sir sis sit siu spb spc spi spp spr sps spt spu sr- srb src sri srp srr srs srt ss- ssb ssc ssi ssp ssr sss sst ssu stb stc sti stp str sts stt stu sub suc sui sup sur sus sut suu tbb tbc tbi tbp tbr tbs tbt tbu tcb tcc tci tcp tcr tcs tct tcu tib tic tii tip tir tis tit tiu tpb tpc tpi tpp tpr tps tpt tpu trb trc tri trp trr trs trt tru tsb tsc tsi tsp tsr tss tst tsu ttb ttc tti ttp ttr tts ttt ttu tub tuc tui tup tur tus tut tuu ubb ubc ubi ubp ubr ubs ubt ubu ucb ucc uci ucp ucr ucs uct ucu uib uic uii uip uir uis uit uiu up- upb upc upi upp upr ups upt upu ur- urb urc uri urp urr urs urt uru usb usc usi usp usr uss ust usu utb utc uti utp utr uts utt utu uuc uur uus uut uuu

bbbb bbbs bbci bbpr bbrc bcbc bcbp bcbs bccc bcci bccs bcis bcit bcpp bcps bcrs bcru bcsc bcss bctc bcts bcuc bcup bibb bibi bibs bicc bici bics biis bipp bips bipu birb biri birr birs birt biru bis- bisc bisp biss bist bisu bitc bits bitt bitu bpcp bprc bpsu bpti brcb bric bris brit brrr brrs brsb brsr brst brtc bruc brup brus brut bsci bscp bscs bsic bspp bspr bssc bsts bsup btbp btcc btcs btps btrc btrt btss bttb btus bubb bubi bubs bubu bucc buci bucs bucu buic buir buis buit buiu bupc bups bur- burb buri burp burr burs burt buru busc busi buss bust busu but- buti buts butt buus cbbc cbbs cbcc cbcp cbcr cbcs cbct cbcu cbir cbit cbpc cbpp cbrt cbsc cbsi cbtc cbus ccbc cccb cccc ccci cccp cccs cccu ccic ccii ccip ccir ccis ccpp ccpr ccps ccrc ccri ccrp ccrs ccrt ccsi ccsp ccss ccst cctb cctc cctt ccuc ccup ccus ccut cibc cibi cicc cici cicr cics cict cicu ciii ciis ciit cipp cips cirb circ ciri cirr cirs cirt cis- cisc cisp cisr ciss cist citb citi citp cits citt citu ciuc ciup cius cpbc cpcs cpcu cpic cpps cpri cprs cprt cpsc cpsr cpsu cptp cptr cpts cpus crbc crbu crcc crcr crib cric crip cris crit criu crpc crps crrt crsp crss crst crtc crtp crts crub crup crus crut cscb cscc csci cscr cscs csib csir csis csit cspb cspc cspi csps cspt csrc csrs cssr cstc cstr csts csup csur csus ctbi ctbs ctcp ctic ctpp ctps ctrc ctrp ctrs ctsc ctss ctsu ctts cub- cubb cubi cubs cucc cuci cui- cuir cuis cuit cupp cupr cups curb curi curr curs curt cusb cusp cuss cust cusu cut- cutc cuts cutt ibcs ibis ibrc ibri ibss ibtb ibtc ibts ibus icbc icbp icbs iccb iccc icci iccp iccr iccs icct iccu icis icpc icps icrc icrr icrs icrt icru icsb icsc icsi icsp icsr icss icst ictp icts icub icup icus iiii iiis iiit iirc iirs iisc iisi iisp iisr iist iisu iitr iitt iiuc ipcc ipcs ipct ippc ippr ipri ipsc ipsi ipsp ipss iptc ipts ipur ipus iput irbp ircc ircs ircu iri- iric irip iris irpc irps irrc irri irrs irsp irti irtp irts irus isbt iscc isci iscp iscr iscs isct iscu isic isis isit ispc ispr isps isri isrp issc issi issp issr isss issu istc isti istp istr ists isup isus itbs itcs itic itis itpc itri itrs itsi itsp itsu itup itur iucc iuiu iupp iuss iust pbcc pbrs pbsp pcbc pcbs pccc pccs pcip pcpb pcpp pcps pcrc pcts pibb pibi picc pici picr pics pict picu piip pipi pipp pips pirc piri pirr pirs piru pisi piss pist pisu piti pitr pits pitt pitu pius ppcc ppci ppcs ppib ppic