bbbb bbci bbrc bcbc bccc bcci bibb bibi bicc bici bick birb biri birk birr biry bkcy bkry brcb bric brik brkb brrr bry- bryk byck byik byki byrk cbbc cbcc cbcr cbir cbkr cbry ccbc cccb cccc ccci ccic ccii ccir ccrc ccri cibc cibi cicc cici cicr ciii cikr cirb circ ciri cirk cirr ckbc ckbi ckck ckcy ckrc ckry crbc crcc crcr crib cric crik crkc cry- cryb cybb cybc cybi cyc- cycb cycc cyrk cyy- cyyc i-by ibrc ibri ibyi icbc iccb iccc icci iccr icky icrc icrr icry iiii iirc ikki ikky ikri irby ircc iri- iric iriy irki irrc irri k-ci kbbb kbbc kbbi kbbk kbbr kbcb kbci kbck kbcr kbcy kbib kbic kbik kbiy kbkb kbkk kbkr kbky kbrb kbrc kbri kbrk kbry kbyb kbyi kbyr kcbc kcbi kcbk kcbr kccb kccc kcci kcck kccr kccy kcic kcii kcir kckc kckk kckr kcky kcrc kcri kcrr kcry kcyk kcyy kibb kibc kibi kibr kiby kicb kicc kick kicr kicy kiic kiii kiik kikc kiki kikk kikr kirb kirc kiri kirk kirr kiyi kiyk kkbb kkbi kkbr kkcb kkci kkck kkcr kkcy kkic kkik kkkk kkrb kkrc kkrk kkrr kkyc kkyy krbb krbi krbk krbr krcb krcc krci krib krik krkc krki krkk krkr krky krrb krrc krri krrk krrr krry kryk kryy kybb kybc kybi kybr kyby kycc kyck kycr kykc kykk kykr kyky kyrc kyrk kyyi kyyk kyyy rbbb rbbr rcbc rccb rccc rcic rcyc rib- riby ricc rick riki rikk riri rrrr ryck ryki ybry yccc yirb yirk yirr yyyy