b-u bbb bbc bbk bbm bbr bbs bbt bbu bcb bcc bck bcm bcr bcs bct bcu bkb bkc bkk bkm bkr bks bkt bmb bmc bmk bmm bmr bms bmt bmu brb brk brm brr brs brt bru bsb bsc bsk bsm bsr bss bst bsu btb btc btk btm btr bts btt btu bub buc buk bum bur bus but buu c-- cbb cbc cbk cbm cbr cbs cbt cbu ccb ccc cck ccm ccr ccs cct ccu ckb ckc ckm cks ckt cmb cmc cmk cmm cmr cms cmt cmu crb crc crk crm crr crs crt cru csb csc csk csm csr css cst csu ctb ctc ctk ctm ctr cts ctt ctu cub cuc cuk cum cur cus cut cuu k-t kbb kbc kbk kbm kbr kbs kbu kcb kcc kck kcm kcr kcs kct kcu kkb kkc kkk kkm kkr kks kkt kku kmb kmc kmk kmm kms kmt kmu krc krk krr krs krt kru ksb ksc ksk ksm ksr kss kst ksu ktb ktc ktk ktm ktr kts ktt ktu kub kuc kuk kum kur kus kut kuu m-r mbb mbc mbk mbm mbr mbs mbt mbu mc- mcb mcc mck mcm mcr mcs mct mcu mkb mkc mkk mkm mkr mks mkt mku mmb mmc mmk mmm mmr mms mmt mmu mrb mrc mrk mrm mrr mrs mrt mru msb msc msk msm msr mss mst msu mtb mtc mtk mtm mtr mts mtt mtu mub muc muk mum mur mus mut muu rbb rbc rbk rbm rbr rbs rbt rbu rcb rcc rcm rcr rcs rct rcu rkb rkc rkk rkm rks rkt rku rmb rmc rmm rmr rms rmt rrb rrc rrk rrm rrr rrs rrt rru rsb rsc rsk rsm rsr rss rst rsu rtb rtc rtk rtm rtr rts rtt rtu rub ruc ruk rum rur rus rut ruu sbb sbc sbk sbm sbr sbs sbt sbu scb scc sck scm scr scs sct scu sk- skb skc skk skm skr sks skt sku smb smc smk smm smr sms smt smu sr- srb src srk srm srr srs srt ss- ssb ssc ssk ssm ssr sss sst ssu stb stc stk stm str sts stt stu sub suc suk sum sur sus sut suu tbb tbc tbk tbm tbr tbs tbt tbu tcb tcc tck tcm tcr tcs tct tcu tkb tkc tkk tkm tkr tks tkt tmb tmc tmk tmm tmr tms tmt tmu trb trc trk trm trr trs trt tru tsb tsc tsk tsm tsr tss tst tsu ttb ttc ttk ttm ttr tts ttt ttu tub tuc tuk tum tur tus tut tuu ubb ubc ubk ubr ubs ubt ubu ucb ucc uck ucm ucr ucs uct ucu ukb ukc ukk ukr uku um- umb umc umm umr ums umt umu ur- urb urc urk urm urr urs urt uru usb usc usk usm usr uss ust usu utb utc utk utm utr uts utt utu uuc uum uur uus uut uuu

bbbb bbbs bbcm bbrc bcbc bcbs bccc bccm bccs bcms bcrs bcru bcsc bcsm bcss bctc bcts bcuc bmtc bmts bmus brcb brkb brmc brrm brrr brrs brsb brsr brst brtc bruc brum brus brut bscs bskt bsms bsmt bsrm bssc bssm bsts btcc btcs btrc btrt btss bttb btus bubb bubs bubu bucc buck bucs bucu bukk buku bum- bumb bums bur- burb burk burm burr burs burt buru busc busk buss bust busu but- buts butt buus cbbc cbbs cbcc cbcm cbcr cbcs cbct cbcu cbkm cbkr cbms cbrm cbrt cbsc cbsm cbtc cbus ccbc cccb cccc cccm cccs cccu cckm ccmb ccmc ccmm ccms ccrc ccrs ccrt ccss ccst cctb cctc cctt ccuc ccus ccut ckbc ckck ckcm ckcs ckrc ckrm cksb ckst cktb ckts cmbc cmbs cmcc cmcs cmmb cmmc cmms cmrr cmrs cmsc cmst cmtc cmtu cmus crbc crbu crcc crcr crkc crmb crms crrt crss crst crtc crtm crts crub cruk crum crus crut csbm cscb cscc cscr cscs csks csmc csmu csrc csrs cssm cssr cstc cstm cstr csts csum csur csus ctbs ctrc ctrm ctrs ctsc ctss ctsu ctts cub- cubb cubs cucc cuck cucm cuk- cum- cums cumt curb curr curs curt cusb cusk cuss cust cusu cut- cutc cuts cutt kbbb kbbc kbbk kbbm kbbr kbbs kbbt kbbu kbcb kbck kbcr kbcs kbct kbcu kbkb kbkk kbkr kbmb kbmc kbmr kbms kbmt kbrb kbrc kbrk kbrt kbru kbsb kbsk kbsm kbsr kbss kbst kbsu kbtb kbtc kbtk kbtm kbtr kbts kbtt kbub kbuc kbuk kbur kbus kbut kbuu kcbc kcbk kcbr kcbs kcbu kccb kccc kcck kccr kcct kccu kckc kckk kckm kckr kcmb kcmc kcmk kcmm kcmr kcms kcmt kcrc kcrr kcrs kcrt kcru kcsb kcsc kcsm kcsr kcss kcst kcsu kctb kctc kctu kcub kcuk kkbb kkbr kkbs kkbt kkcb kkck kkcm kkcr kkcs kkct kkkk kkmc kkmk kkmr kkms kkmt kkrb kkrc kkrk kkrr kkrs kkrt kksm kksr kkss kkst kksu kktc kktk kkts kktu kkus kkut kkuu kmbc kmbr kmbs kmcb kmcc kmcm kmcr kmcs kmcu kmkk kmks kmkt kmmk kmmm kmmr kmms kmmt kmrb kmrc kmrr kmrs kmsb kmsc kmsr kmss kmst kmsu kmtb kmtc kmtk kmtr kmts kmtt kmuc kmur kmus krbb krbk krbm krbr krbt krcb krcc krcm krcs krcu krkc krkk krkr krks krku krmb krmc krmr krms krmt krrb krrc krrk krrm krrr krrs krrt krsc krsk krsr krss krst krsu krtc krtk krtm krtr krts kruc kruk krum krur ksbc ksbr ksbs kscb ksck kscm kscr kscs kscu kskb kskk kskr ksks ksku ksmb ksmc ksmm ksmr ksms ksmt ksmu ksrb ksrm ksrr ksrs ksrt kssm kssr ksss ksst kssu kstb kstc kstk kstm kstr ksts kstt kstu ksub ksum ksut ksuu ktbb ktbc ktbr ktbt ktbu ktcc ktck ktcm ktcr ktcs ktkb ktkc ktkk ktkr ktks ktkt ktku ktmb ktmc ktmk ktmm ktmr ktms ktmt ktmu ktrb ktrc ktrk ktrm ktrr ktrs ktrt ktru ktsc ktsm ktsr ktst ktsu kttc kttk kttr ktts kttt kttu ktub ktuc ktum kubb