bbbb bbci bbeb bcbc bccc bcci bcec bcie bebb bebe bebi beby beci beck beeb beek beey beic beik beke beki beye beyi beyk bibb bibe bibi bicc bice bici bick bieb bike bkcy byce byck byik byke byki cbbc cbcc cbce cbec cbee ccbc cccb cccc ccci ccee ccic ccii cec- cece ceci ceeb ceec ceke cibc cibe cibi cicc cici ciee ciii ckbc ckbe ckbi ckck ckcy ckey cybb cybc cybi cyc- cycb cycc cyke cyy- cyyc ebbc ebby ebcc ebic ecbc ecbe eccb eccc ecce ecci ecib ecky eeby eeee eeke eick eiec eiei eike eiki ekeb ekek ekki eyck eyeb eyec eyey eyik eyke i-be i-by ibec ibie ibyi icbc iccb iccc icci icec icee icey icke icky iecc ieie iiie iiii ikee ikey ikki ikky k-ci kbbb kbbc kbbe kbbi kbbk kbcb kbce kbci kbck kbcy kbeb kbec kbee kbek kbey kbib kbic kbie kbik kbiy kbkb kbkk kbky kbyb kbyi kcbc kcbi kcbk kccb kccc kcci kcck kccy kceb kcec kcee kcei kcey kcic kcie kcii kckc kckk kcky kcye kcyk kcyy kebb kebc kebe kebi keck keek keib keii keik kekb kekc keke keki keyb keye keyy kibb kibc kibe kibi kiby kicb kicc kice kick kicy kiic kiii kiik kikc kiki kikk kiyi kiyk kkbb kkbe kkbi kkcb kkci kkck kkcy kkic kkik kkkk kkyc kkyy kybb kybc kybe kybi kyby kycc kyck kyee kykc kyke kykk kyky kyyi kyyk kyyy yccc ycee ycie yeck yeek yeie yeii yeke yeki yeye yeyi yike ykey yyyy