-ic b-u bbb bbc bbi bbm bbr bbs bbt bbu bcb bcc bci bcm bcr bcs bct bcu bi- bib bic bii bim bir bis bit biu bmb bmc bmi bmm bmr bms bmt bmu brb bri brm brr brs brt bru bsb bsc bsi bsm bsr bss bst bsu btb btc bti btm btr bts btt btu bub buc bui bum bur bus but buu c-- cbb cbc cbi cbm cbr cbs cbt cbu ccb ccc cci ccm ccr ccs cct ccu ci- cib cic cii cim cir cis cit ciu cmb cmc cmi cmm cmr cms cmt cmu crb crc cri crm crr crs crt cru csb csc csi csm csr css cst csu ctb ctc cti ctm ctr cts ctt ctu cub cuc cui cum cur cus cut cuu ibb ibc ibi ibm ibr ibs ibt ibu icb icc ici icm icr ics ict icu iib iic iii iim iir iis iit iiu im- imb imc imi imm ims imt imu ir- irb irc iri irm irr irs irt iru is- isb isc isi ism isr iss ist isu itb itc iti itm its itt itu iu- iub iuc iui ium iur ius iut m-r mbb mbc mbi mbm mbr mbs mbt mbu mc- mcb mcc mci mcm mcr mcs mct mcu mi- mib mic mii mim mir mis mit miu mmb mmc mmi mmm mmr mms mmt mmu mrb mrc mri mrm mrr mrs mrt mru msb msc msi msm msr mss mst msu mtb mtc mti mtm mtr mts mtt mtu mub muc mui mum mur mus mut muu rbb rbc rbi rbm rbr rbs rbt rbu rcb rcc rci rcm rcr rcs rct rcu rib ric rii rim rir ris rit rmb rmc rmi rmm rmr rms rmt rrb rrc rri rrm rrr rrs rrt rru rsb rsc rsi rsm rsr rss rst rsu rtb rtc rti rtm rtr rts rtt rtu rub ruc rui rum rur rus rut ruu sbb sbc sbi sbm sbr sbs sbt sbu scb scc sci scm scr scs sct scu sib sic sii sim sir sis sit siu smb smc smi smm smr sms smt smu sr- srb src sri srm srr srs srt ss- ssb ssc ssi ssm ssr sss sst ssu stb stc sti stm str sts stt stu sub suc sui sum sur sus sut suu tbb tbc tbi tbm tbr tbs tbt tbu tcb tcc tci tcm tcr tcs tct tcu tib tic tii tim tir tis tit tiu tmb tmc tmi tmm tmr tms tmt tmu trb trc tri trm trr trs trt tru tsb tsc tsi tsm tsr tss tst tsu ttb ttc tti ttm ttr tts ttt ttu tub tuc tui tum tur tus tut tuu ubb ubc ubi ubr ubs ubt ubu ucb ucc uci ucm ucr ucs uct ucu uib uic uii uim uir uis uit uiu um- umb umc umi umm umr ums umt umu ur- urb urc uri urm urr urs urt uru usb usc usi usm usr uss ust usu utb utc uti utm utr uts utt utu uuc uum uur uus uut uuu

-ism bbbb bbbs bbci bbcm bbrc bcbc bcbs bccc bcci bccm bccs bcis bcit bcms bcrs bcru bcsc bcsm bcss bctc bcts bcuc bibb bibi bibs bicc bici bics biis bims birb biri birr birs birt biru bis- bisc biss bist bisu bitc bits bitt bitu bmci bmic bmir bmmi bmtc bmts bmus brcb bric brim bris brit brmc brrm brrr brrs brsb brsr brst brtc bruc brum brus brut bsci bscs bsic bsim bsms bsmt bsrm bssc bssm bsts btcc btcs btrc btrt btss bttb btus bubb bubi bubs bubu bucc buci bucs bucu buic buir buis buit buiu bum- bumb bums bur- burb buri burm burr burs burt buru busc busi buss bust busu but- buti buts butt buus cbbc cbbs cbcc cbcm cbcr cbcs cbct cbcu cbir cbit cbms cbrm cbrt cbsc cbsi cbsm cbtc cbus ccbc cccb cccc ccci cccm cccs cccu ccic ccii ccim ccir ccis ccmb ccmc ccmm ccms ccrc ccri ccrs ccrt ccsi ccss ccst cctb cctc cctt ccuc ccus ccut cibc cibi cicc cici cicr cics cict cicu ciii ciis ciit cimb cimi cimm cimr cims cirb circ ciri cirm cirr cirs cirt cis- cisc cism cisr ciss cist citb citi cits citt citu ciuc cius cmbc cmbs cmcc cmcs cmii cmir cmmb cmmc cmmi cmms cmri cmrr cmrs cmsc cmst cmtc cmtu cmus crbc crbu crcc crcr crib cric crim cris crit criu crmb crms crrt crss crst crtc crtm crts crub crum crus crut csbm cscb cscc csci cscr cscs csib csir csis csit csmc csmu csrc csrs cssm cssr cstc cstm cstr csts csum csur csus ctbi ctbs ctic ctrc ctrm ctrs ctsc ctss ctsu ctts cub- cubb cubi cubs cucc cuci cucm cui- cuir cuis cuit cum- cums cumt curb curi curr curs curt cusb cuss cust cusu cut- cutc cuts cutt ibbm ibcs ibim ibis ibms ibrc ibri ibss ibtb ibtc ibts ibus icbc icbm icbs iccb iccc icci iccr iccs icct iccu icis icmc icmi icmm icms icmt icrc icrm icrr icrs icrt icru icsb icsc icsi icsr icss icst icts icub icus iiii iiis iiit iimc iirc iirs iisc iisi iism iisr iist iisu iitm iitr iitt iiuc iium imbi imcb imci imcs imir imit immi imms immt imrc imri imrr imsc imsi imsr imss imst imsu imts imus irbm ircc ircs ircu iri- iric iris irmc irms irrc irri irrs irti irts irus isbt iscc isci iscr iscs isct iscu isic isim isis isit ismc ismi isms isri issc issi issr isss issu istc isti istr ists isum isus itbs itcm itcs itic itim itis itms itri itrs itsi itsu itum itur iucc iuiu iums iuss iust mbbs mbci mbcs mbim mbis mbms mbrs mbus mcbc mcbi mccc mcci mcic mcii mcit mcmc mcmi mcmt mcrc mcri mcss mcst mctc mcts mctu mibc mibs micc mici micr mics mict miii miis miit mim- mimi mims mirc