bbbb bbcm bbeb bblb bcbc bccc bccl bccm bcec bebb bebe beck beeb beek beel beem beke bele belk bell belm beme bleb blee blek blem blkb blme bmce cbbc cbcc cbce cbcl cbcm cbec cbee cbkl cbkm cblb cblc cbme ccbc cccb cccc cccl cccm ccee ccel cckm cclc cclm ccmb ccmc ccmm cec- cece cecm ceeb ceec ceel ceem ceke cel- celc cele cell cemb ceme cemm ckbc ckbe ckck ckcl ckcm ckem cklm ckml clec clee clek clem cmbc cmcc cmec cmll cmmb cmmc cmml e-cl ebbc ebcc ebel ecbc ecbe eccb eccc ecce eccl eccm ecem eeee eeke eele ekeb ekek el-b elbe elcb elce elec elee elek elem elke elle elme elml embe emcc emek emel emle emlm emme emml kbbb kbbc kbbe kbbk kbbl kbbm kbcb kbce kbck kbcl kbeb kbec kbee kbek kbel kbkb kbkk kbkl kblb kble kbll kblm kbmb kbmc kbme kcbc kcbk kcbl kccb kccc kcck kccl kceb kcec kcee kcel kckc kckk kckl kckm kclc kcle kclk kcll kclm kcmb kcmc kcme kcmk kcml kcmm kebb kebc kebe keck keek keel keem kekb kekc keke kekl kele kelk kell kelm kemb kemc keme kemm kkbb kkbe kkbl kkcb kkck kkcl kkcm kkkk kklb kklc kkll kkmc kkmk kkml klbb klbc klbe klbl klbm klcb klcc klce klck klcl klcm kleb klec klee klek klem klkc klkk klkl kllb kllc klle kllk klmk klmm kmbc kmbl kmcb kmcc kmce kmcl kmcm kmel kmem kmke kmkk kmkl kmlb kmle kmlk kmme kmmk kmml kmmm lbcc lbmc lcbc lccc lcce lccm lece leck leek leel leem leke lekk lele lell leme lemm llcc lllc llll lmcc mcbc mccc mccl mckk mcmc mcml mebe mec- mecc mece meck meek meel meem meke mel- melb melc mele melk mell memc meme meml mlcc mlle mmcc mmcl mmcm mmmc mmmm