-ic b-u bbb bbc bbi bbn bbr bbs bbt bbu bcb bcc bci bcn bcr bcs bct bcu bcv bi- bib bic bii bin bir bis bit biu biv bnb bnc bni bnn bnr bns bnt bnu bnv brb bri brn brr brs brt bru brv bsb bsc bsi bsn bsr bss bst bsu bsv btb btc bti btn btr bts btt btu btv bub buc bui bun bur bus but buu bvb bvc bvi bvn bvr bvs bvt bvu bvv c-- cbb cbc cbi cbn cbr cbs cbt cbu cbv ccb ccc cci ccn ccr ccs cct ccu ccv ci- cib cic cii cin cir cis cit ciu civ cn- cnb cnc cni cnn cnr cns cnt cnu cnv crb crc cri crn crr crs crt cru crv csb csc csi csn csr css cst csu csv ctb ctc cti ctn ctr cts ctt ctu ctv cub cuc cui cun cur cus cut cuu cuv cvb cvc cvi cvn cvr cvs cvt cvu cvv i-v ibb ibc ibi ibn ibr ibs ibt ibu ibv icb icc ici icn icr ics ict icu icv iib iic iii iin iir iis iit iiu in- inb inc ini inn inr ins int inu inv ir- irb irc iri irn irr irs irt iru irv is- isb isc isi isn isr iss ist isu isv itb itc iti itn its itt itu itv iu- iub iuc iui iur ius iut ivb ivc ivi ivr ivs ivt ivu ivv n-i nbb nbc nbi nbn nbr nbs nbt nbu nbv ncb ncc nci ncn ncr ncs nct ncu ncv nib nic nii nin nir nis nit niu niv nnb nnc nni nnn nns nnt nnu nnv nrb nrc nri nrn nrr nrs nrt nru nrv nsb nsc nsi nsn nsr nss nst nsu nsv ntb ntc nti ntn ntr nts ntt ntu ntv nub nuc nui nun nur nus nut nuu nuv nvb nvc nvi nvn nvt nvu nvv rbb rbc rbi rbn rbr rbs rbt rbu rcb rcc rci rcn rcr rcs rct rcu rcv rib ric rii rin rir ris rit riv rnb rnc rni rnn rnr rns rnt rnu rnv rrb rrc rri rrn rrr rrs rrt rru rsb rsc rsi rsn rsr rss rst rsu rsv rtb rtc rti rtn rtr rts rtt rtu rtv rub ruc rui run rur rus rut ruu ruv rvb rvc rvi rvn rvr rvs rvt rvu rvv sbb sbc sbi sbn sbr sbs sbt sbu sbv scb scc sci scn scr scs sct scu scv sib sic sii sin sir sis sit siu siv snb snc sni snn snr sns snt snu snv sr- srb src sri srn srr srs srt srv ss- ssb ssc ssi ssn ssr sss sst ssu ssv stb stc sti stn str sts stt stu stv sub suc sui sun sur sus sut suu suv svb svc svi svn svr svs svt svu svv tbb tbc tbi tbn tbr tbs tbt tbu tbv tcb tcc tci tcn tcr tcs tct tcu tcv tib tic tii tin tir tis tit tiu tiv tnb tnc tni tnn tnr tns tnt trb trc tri trn trr trs trt tru trv tsb tsc tsi tsn tsr tss tst tsu tsv ttb ttc tti ttn ttr tts ttt ttu ttv tub tuc tui tun tur tus tut tuu tuv tvb tvc tvi tvn tvr tvs tvt tvu ubb ubc ubi ubn ubr ubs ubt ubu ubv ucb ucc uci ucn ucr ucs uct ucu ucv uib uic uii uin uir uis uit uiu un- unb unc uni unn unr uns unt unu unv ur- urb urc uri urn urr urs urt uru usb usc usi usn usr uss ust usu usv utb utc uti utn utr uts utt utu utv uuc uun uur uus uut uuu uvb uvc uvs uvu uvv vbc vbi vbr vbs vbv vcc vci vcn vcr vcs vct vcu vi- vib vic vii vin vir vis vit viu viv vn- vni vnr vns vnu vnv vrb vrc vri vrn vrr vrs vrt vru vsb vsc vsi vsn vsr vss vst vsu vsv vtb vtc vti vtr vts vtt vtu vtv vur vus vut vuv vvb vvc vvi vvr vvs vvt vvv

bbbb bbbs bbci bbin bbrc bcbc bcbs bccc bcci bccs bcis bcit bcnu bcrs bcru bcsc bcsn bcss bctc bcts bcuc bibb bibi bibs bicc bici bics biin biis bin- binc bini binn bins bint binu birb biri birn birr birs birt biru bis- bisc biss bist bisu bitc bits bitt bitu bivi bnib bnin bnrr bnss brcb bric brin bris brit brns brrr brrs brsb brsr brst brtc bruc brun brus brut bruv brvi bsci bscs bsic bsin bsns bssc bsts bstv btcc btcs btrc btrt btss bttb btus btvi bubb bubi bubs bubu bucc buci bucs bucu buic buin buir buis buit buiu bunb buni bunn buns bunt bunu bur- burb buri burn burr burs burt buru busc busi buss bust busu but- buti buts butt buus bvsc cbbc cbbs cbcc cbcn cbcr cbcs cbct cbcu cbir cbit cbrn cbrt cbsc cbsi cbsn cbtc cbtv cbus cbvb cbvn cbvr ccbc ccbn cccb cccc ccci cccs cccu cccv ccic ccii ccir ccis cciv ccnb ccnc ccni ccnr ccns ccnu ccrc ccri ccrs ccrt ccsi ccsn ccss ccst cctb cctc cctt cctv ccuc ccus ccut ccvi ccvs cibc cibi cicc cici cicr cics cict cicu ciii ciis ciit cin- cinc cini cint cinv cirb circ ciri cirr cirs cirt cis- cisc cisn cisr ciss cist cisv citb citi cits citt citu citv ciuc cius civc cnbc cnci cnib cnic cnrc cnrr cnrt cnss cntc cntr cnut crbc crbu crcc crcr crib cric crin cris crit criu crns crrt crss crst crtc crts crtv crub crun crus crut cscb cscc csci cscr cscs csib csir csis csit csrc csrs cssr cstc cstr csts csur csus ctbi ctbs ctic ctns ctrc ctrn ctrs ctsc ctsn ctss ctsu cttn ctts ctvt cub- cubb cubi cubs cucc cuci cucn cui- cuin cuir cuis cuit