bbbb bbcm bbeb bcbc bccc bccm bcec bebb bebe bebo beeb beem beme beo- bmce bmoc bobb bobe bobo boce bocm boco boec boee boeo bomb bome boob booc booe boom c-bo cbbc cbcc cbce cbcm cbec cbee cbme ccbc cccb cccc cccm ccee ccmb ccmc ccmm ccob ccoc ccom cec- cece cecm ceco ceeb ceec ceem cemb ceme cemm cmbc cmcc cmec cmmb cmmc cmoc cobb cobe cobo coce coco com- comb comc come comm como coob coom ebbc ebbo ebcc eboe eboo ecbc ecbe eccb eccc ecce eccm ecco ecem eco- eeee eemo eeoc embe embo emcc emco emme mcbc mccc mcmc mebe mebo mec- mecc mece meco meem memc meme memo meoc mmcc mmcm mmmc mmmm mobb mobe mobo moco mome momo moob mooc mooe o-eo obbo obec oboe ocbc occc oce ocee ocom oec- oecc oeec oeme ombe ombo omee omeo omo- omoe omoo oobe oome oooo