b-u bbb bbc bbg bbh bbk bbr bbs bbu bcb bcc bcg bch bck bcr bcs bcu bgb bgc bgg bgh bgk bgr bgs bgu bhb bhc bhg bhh bhk bhr bhs bhu bkb bkc bkg bkk bkr bks brb brg brh brk brr brs bru bsb bsc bsg bsh bsk bsr bss bsu bub buc bug buh buk bur bus buu c-- cbb cbc cbg cbh cbk cbr cbs cbu ccb ccc ccg cch cck ccr ccs ccu cgb cgc cgg cgh cgr cgs cgu ch- chb chc chg chh chk chr chs chu ckb ckc ckh cks crb crc crg crh crk crr crs cru csb csc csg csh csk csr css csu cub cuc cug cuh cuk cur cus cuu gbc gbg gbh gbk gbr gbs gbu gcb gcc gcg gch gck gcr gcs gcu ggb ggc ggg ggh ggr ggs ggu ghb ghc ghg ghh ghr ghs gkb gkh gks grb grc grg grh grk grr grs gru gsb gsc gsg gsk gsr gss gsu gu- gub guc gug guk gur gus guu hbb hbc hbg hbh hbk hbr hbs hbu hcb hcc hcg hch hck hcr hcs hgb hgc hgg hgh hgk hgr hgs hgu hhb hhc hhg hhh hhk hhr hhs hhu hkb hkg hkh hkk hkr hks hku hr- hrb hrc hrg hrh hrk hrr hrs hru hsb hsc hsg hsh hsk hsr hss hsu hub huc hug huh huk hur hus huu kbb kbc kbh kbk kbr kbs kbu kcb kcc kcg kch kck kcr kcs kcu kgb kgc kgh kgs kgu khh khk khr khs khu kkb kkc kkh kkk kkr kks kku krc krg krk krr krs kru ksb ksc ksg ksh ksk ksr kss ksu kub kuc kug kuh kuk kur kus kuu rbb rbc rbg rbh rbk rbr rbs rbu rcb rcc rcg rch rcr rcs rcu rgb rgc rgg rgh rgk rgr rgs rh- rhb rhc rhg rhh rhr rhs rhu rkb rkc rkg rkk rks rku rrb rrc rrg rrh rrk rrr rrs rru rsb rsc rsg rsh rsk rsr rss rsu rub ruc rug ruh ruk rur rus ruu sbb sbc sbg sbh sbk sbr sbs sbu scb scc scg sch sck scr scs scu sgb sgc sgg sgh sgk sgr sgs sgu sh- shb shc shg shh shk shr shs shu sk- skb skc skg skh skk skr sks sku sr- srb src srg srh srk srr srs ss- ssb ssc ssg ssh ssk ssr sss ssu sub suc sug suh suk sur sus suu ubb ubc ubg ubh ubk ubr ubs ubu ucb ucc ucg uch uck ucr ucs ucu ugb ugc ugg ugh ugk ugr ugs ugu uhb uhc uhh uhr uhs uhu ukb ukc ukk ukr uku ur- urb urc urg urk urr urs uru usb usc usg ush usk usr uss usu uuc uug uur uus uuu

bbbb bbbs bbch bbhs bbrc bbrg bcbc bcbg bcbs bccc bccs bcgs bchs bcrs bcru bcsc bcss bcuc bggs bghs bhcc bhhs bhur bhuu bkhs brcb brhs brkb brrr brrs brsb brsr bruc brug bruh brus bscs bsgs bshs bssc bubb bubs bubu bucc buch buck bucs bucu bugg bugh bugs buhr buhs bukh bukk buku bur- burb burg burh burk burr burs buru busc bush busk buss busu buus cbbc cbbs cbcc cbcr cbcs cbcu cbgb cbhs cbkg cbkr cbrh cbsc cbus ccbc cccb cccc cccs cccu ccgc ccgs cchr cchs ccrc ccrg ccrs ccsg ccss ccuc ccus cgcc cgcg cggs cghs cgsb cgsh cgss chch chcs chgb chgs chhs chkb chks chrb chrc chrr chrs chsc chsh chsr chub chug chuk chur chus ckbc ckch ckck ckcs ckhs ckrc cksb cksh crbc crbu crcc crcr crgs crhs crkc crss crub crug cruk crus cscb cscc csch cscr cscs csgh cshs csks csrc csrs cssr csur csus cub- cubb cubs cucc cuck cuk- curb curr curs cusb cusg cush cusk cuss cusu gbbs gbhs gc-c gcbc gccc gccs gchs gcrg gcsh gcss gcsu gggg gghg ggss ghhs ghug gkhs grbr grcc grhs grrr grrs grss grub grug grur grus gshs gskb gsur gubb gubs gubu guch guck gugb gugg gugh gugu guhr gurb gurg gurh gurk gurr gurs guru gusb gush guss guus hbbs hbhs hbrs hbss hcbc hcbs hccb hccc hcch hccs hcgh hchs hcsc hcss hggc hghs hhgg hhhh hhhs hhus hkbu hkcc hkcs hrhs hrrc hsbc hscc hshs hsur hubb hubs huch huck hucs hucu hugg hugh hugs huhs huhu hurk hurr hurs huru hush husk huss huub huus kbbb kbbc kbbg kbbk kbbr kbbs kbbu kbcb kbch kbck kbcr kbcs kbcu kbgb kbgg kbgh kbgr kbhb kbhc kbhh kbhr kbhs kbkb kbkg kbkk kbkr kbrb kbrc kbrg kbrh kbrk kbru kbsb kbsg kbsk kbsr kbss kbsu kbub kbuc kbuk kbur kbus kbuu kcbc kcbk kcbr kcbs kcbu kccb kccc kcck kccr kccu kcgc kcgr kcgs kchg kchh kchk kchr kchs kchu kckc kckk kckr kcrc kcrg kcrh kcrr kcrs kcru kcsb kcsc kcsg kcsr kcss kcsu kcub kcuh kcuk kgbb kgbc kgbr kgcb kgcc kgcr kggg kggr kghr kghs kgks kgrb kgrc kgrg kgrk kgrr kgrs kgsr kgus khbc khbr khbs khcb khcc khch khck khcs khgc khgg khhg khhk khhs khkk khkr khks khrk khrr khss khsu khub khug khuk khur khus kkbb kkbg kkbr kkbs kkcb kkch kkck kkcr kkcs kkgb kkgr kkhb kkhh kkhk kkhr kkkk kkrb kkrc kkrh kkrk kkrr kkrs kksr kkss kksu kkus kkuu krbb krbg krbk krbr krcb krcc krcg krch krcs krcu krgs krhc krhs krkc krkh krkk krkr krks krku krrb krrc krrg krrk krrr krrs krsc krsh krsk krsr krss krsu kruc krug kruh kruk krur ksbc ksbh ksbr ksbs kscb ksch ksck kscr kscs kscu ksgc ksgg ksgr ksgu kshb kshk kshr kshs kshu kskb kskg kskk kskr ksks ksku ksrb ksrg ksrh ksrr ksrs kssr ksss kssu ksub ksug ksuh ksuu kubb kubc kubr kubs kubu kucb kucc kuch kucr kugb kugr kugs kuhs kuhu kukh kukk kuks kuku kurb kurk kurr kurs kuru kusb kusc