-ic b-u bbb bbc bbg bbi bbk bbr bbs bbu bcb bcc bcg bci bck bcr bcs bcu bcv bgb bgc bgg bgi bgk bgr bgs bgu bgv bi- bib bic big bii bik bir bis biu biv bkb bkc bkg bkk bkr bks bkv brb brg bri brk brr brs bru brv bsb bsc bsg bsi bsk bsr bss bsu bsv bub buc bug bui buk bur bus buu bvb bvc bvg bvi bvk bvr bvs bvu bvv c-- cbb cbc cbg cbi cbk cbr cbs cbu cbv ccb ccc ccg cci cck ccr ccs ccu ccv cgb cgc cgg cgi cgr cgs cgu cgv ci- cib cic cig cii cik cir cis ciu civ ckb ckc cki cks crb crc crg cri crk crr crs cru crv csb csc csg csi csk csr css csu csv cub cuc cug cui cuk cur cus cuu cuv cvb cvc cvg cvi cvk cvr cvs cvu cvv gbc gbg gbi gbk gbr gbs gbu gbv gcb gcc gcg gci gck gcr gcs gcu ggb ggc ggg ggi ggr ggs ggu ggv gib gic gig gii gik gir gis giu giv gkb gks grb grc grg gri grk grr grs gru grv gsb gsc gsg gsi gsk gsr gss gsu gsv gu- gub guc gug gui guk gur gus guu guv gvb gvc gvg gvi gvk gvr gvs gvu i-v ibb ibc ibg ibi ibk ibr ibs ibu ibv icb icc icg ici ick icr ics icu icv igb igc igg igi igk igr igs igu iib iic iii iir iis iiu ikb ikc iki ikk ikr iks iku ikv ir- irb irc irg iri irk irr irs iru irv is- isb isc isg isi isk isr iss isu isv iu- iub iuc iug iui iur ius ivb ivc ivg ivi ivr ivs ivu ivv kbb kbc kbi kbk kbr kbs kbu kcb kcc kcg kci kck kcr kcs kcu kgb kgc kgi kgs kgu kgv kib kic kig kii kik kir kis kiu kiv kkb kkc kki kkk kkr kks kku kkv krc krg kri krk krr krs kru krv ksb ksc ksg ksi ksk ksr kss ksu ksv kub kuc kug kui kuk kur kus kuu kvb kvi kvk kvr kvs kvv rbb rbc rbg rbi rbk rbr rbs rbu rcb rcc rcg rci rcr rcs rcu rcv rgb rgc rgg rgi rgk rgr rgs rgv rib ric rig rii rik rir ris riv rkb rkc rkg rkk rks rku rkv rrb rrc rrg rri rrk rrr rrs rru rsb rsc rsg rsi rsk rsr rss rsu rsv rub ruc rug rui ruk rur rus ruu ruv rvb rvc rvg rvi rvr rvs rvu rvv sbb sbc sbg sbi sbk sbr sbs sbu sbv scb scc scg sci sck scr scs scu scv sgb sgc sgg sgi sgk sgr sgs sgu sgv sib sic sig sii sik sir sis siu siv sk- skb skc skg ski skk skr sks sku sr- srb src srg sri srk srr srs srv ss- ssb ssc ssg ssi ssk ssr sss ssu ssv sub suc sug sui suk sur sus suu suv svb svc svg svi svk svr svs svu svv ubb ubc ubg ubi ubk ubr ubs ubu ubv ucb ucc ucg uci uck ucr ucs ucu ucv ugb ugc ugg ugi ugk ugr ugs ugu uib uic uig uii uir uis uiu ukb ukc uki ukk ukr uku ur- urb urc urg uri urk urr urs uru usb usc usg usi usk usr uss usu usv uuc uug uur uus uuu uvb uvc uvs uvu uvv vbc vbg vbi vbk vbr vbs vbv vcc vci vcr vcs vcu vgc vgg vgr vgs vgu vi- vib vic vig vii vik vir vis viu viv vkb vkg vrb vrc vrg vri vrk vrr vrs vru vsb vsc vsg vsi vsk vsr vss vsu vsv vug vuk vur vus vuv vvb vvc vvg vvi vvr vvs vvv

bbbb bbbs bbci bbrc bbrg bcbc bcbg bcbs bccc bcci bccs bcgs bcis bcrs bcru bcsc bcss bcuc bggs bibb bibi bibs bicc bicg bici bick bics bigb bigc bigg bigs bigu biis biku birb birg biri birk birr birs biru bis- bisc bisk biss bisu bivi brcb bric brig brik bris brkb brrr brrs brsb brsr bruc brug brus bruv brvi bsci bscs bsgs bsic bssc bubb bubi bubs bubu bucc buci buck bucs bucu bugg bugi bugs buic buik buir buis buiu buki bukk buku bur- burb burg buri burk burr burs buru busc busi busk buss busu buus bvsc cbbc cbbs cbcc cbcr cbcs cbcu cbgb cbir cbkg cbkr cbsc cbsi cbus cbvb cbvg cbvr ccbc cccb cccc ccci cccs cccu cccv ccgc ccgs ccic ccii ccir ccis cciv ccrc ccrg ccri ccrs ccsg ccsi ccss ccuc ccus ccvi ccvs cgcc cgcg cggs cgis cgsb cgss cibc cibi cicc cici cicr cics cicu cigi cigs cigu ciii ciis cikr cirb circ ciri cirk cirr cirs cis- cisc cisk cisr ciss cisv ciuc cius civc ckbc ckbi ckck ckcs ckcv ckrc cksb crbc crbu crcc crcr crgs crib cric crig crik cris criu crkc crss crub crug cruk crus cscb cscc csci cscr cscs csib csik csir csis csks csrc csrs cssr csur csus cub- cubb cubi cubs cucc cuci cuck cui- cuir cuis cuk- curb curi curr curs cusb cusg cusk cuss cusu cvbs cvcc cvii cvrg cvrr cvss gbbs gc-c gcbc gccc gccs gcic gcii gciv gcrg gcss gcsu gggg ggss gibb gibs gick gicr gigg gigi gigs giis giku girg giri girk girr girs giru giss giur gius grbr grcc grib gric grig gris grrr grrs grss grub grug grui grur grus gsis gskb gsur gubb gubi gubs gubu guci guck gugb gugg gugi gugu guib guik guis gurb gurg guri gurk gurr gurs guru gusb guss guus guvs gvcs gvvv ibcs ibis ibrc ibri ibss ibus icbc icbs iccb iccc icci iccr iccs iccu icgc icis icks icrc icrr icrs icru icsb icsc icsi icsr icss icub icus igbc igcc iggs igis