b-u bbb bbc bbk bbl bbr bbu bcb bcc bck bcl bcr bcu bkb bkc bkk bkl bkr blb blc blk bll blr blu brb brk brl brr bru bub buc buk bul bur buu c-- cbb cbc cbk cbl cbr cbu ccb ccc cck ccl ccr ccu ckb ckc cl- clb clc clk cll clr clu crb crc crk crl crr cru cub cuc cuk cul cur cuu kbb kbc kbk kbl kbr kbu kcb kcc kck kcl kcr kcu kkb kkc kkk kkl kkr kku kl- klb klc klr klu krc krk krl krr kru kub kuc kuk kul kur kuu lbb lbc lbk lbl lbr lbu lcb lcc lck lcl lcr lcu lkb lkl lkr llb llc llk lll llr llu lrb lrc lrk lrr lru lub luc luk lul lur luu rbb rbc rbk rbl rbr rbu rcb rcc rcl rcr rcu rkb rkc rkk rku rlc rll rlr rlu rrb rrc rrk rrl rrr rru rub ruc ruk rur ruu ubb ubc ubk ubl ubr ubu ucb ucc uck ucl ucr ucu ukb ukc ukk ukl ukr uku ulb ulc ulk ull ulr ulu ur- urb urc urk url urr uru uuc uur uuu

bbbb bblb bbrc bcbc bccc bccl bcru bcuc blcu blkb blrc blub blur brcb brkb brrr bruc bubb bubu bucc buck bucu bukk buku bulb bulk bull bulu bur- burb burk burl burr buru cbbc cbcc cbcl cbcr cbcu cbkl cbkr cblb cblc cbrl ccbc cccb cccc cccl cccu cclc ccrc ccrl ccuc ckbc ckck ckcl ckrc club crbc crbu crcc crcr crkc crkl crub cruk cub- cubb cucc cuck cuk- culb culc culk cull curb curl curr kbbb kbbc kbbk kbbl kbbr kbbu kbcb kbck kbcl kbcr kbcu kbkb kbkk kbkl kbkr kblb kbll kblr kblu kbrb kbrc kbrk kbrl kbru kbub kbuc kbuk kbul kbur kbuu kcbc kcbk kcbl kcbr kcbu kccb kccc kcck kccl kccr kccu kckc kckk kckl kckr kclc kclk kcll kclr kclu kcrc kcrr kcru kcub kcuk kcul kkbb kkbl kkbr kkcb kkck kkcl kkcr kkkk kklb kklc kkll kkrb kkrc kkrk kkrl kkrr kkuu klbb klbc klbl klbu klcb klcc klck klcl klcr klkc klkk klkl klkr kllb kllc kllk klrc klrk klrr klru klub kluk klur kluu krbb krbk krbl krbr krcb krcc krcl krcu krkc krkk krkr krku krlc krrb krrc krrk krrl krrr kruc kruk krul krur kubb kubc kubr kubu kucb kucc kucr kukk kukl kuku kulb kull kulu kurb kurk kurl kurr kuru kuub kuuk kuul kuur kuuu lbcc lblr lcbc lccc lcrl llcc lllc llll lrrc lrrr luck lull lulu lurk luuk rbbb rbbr rbcl rcbc rccb rccc rrrr rubb rubu ruck rukk ruku rulk rull rurc ruru ucbc ucrc ukcc ukrc ukur ulbc ulcc ullr uluk ulul uruk urur uulu uuuu

b-r-k blurb blurr brrrr bruck brull bucku bucur bukk- bulb- bulck bull- bulul burck burcu burru buruc buruk ccccc ccrcl clubb cluck clurr cruck crull cubub cucuk cullu culur curll curlu krull kubul kucuk kukur kullu kulul kulur kurbu kurku kurlu kuruc kuruk lubur lucur luluc lulul lurck rucul ullur ululu uluru urubu urucu uuuuu

bbbbbb blublu brubru bububu bukkur bukuru bulbul burbur buruku cucurb k-club klub-u kullur kululu kurkcu kurkul kururu lukulu lurulu ullucu urkulu

bbbbbbb cubukcu curuklu kucuklu kulullu kurculu

bbbbbbbb buckbuck buruburu cucurucu curucucu curukluk kukukuku kukuruku kuruburu kurukuru

ulkucu ulkuculuk

cluckcluck kukkurukuu

bbbbbbbbbbbbbbb ccccccccccccccc