bbbb bbcm bbdd bbeb bbrc bcbc bccc bccm bcde bcec bcer bd-r bdbc bddc bdrm bebb bebe bede beeb beed beem beer beme berc berd bere berm berr bmce bmdb brcb brce brdm breb brec bred bree brem brer brmc brrm brrr c-cd cbbc cbcc cbce cbcm cbcr cbdb cbdc cbec cbee cber cbme cbrd cbre cbrm ccbc cccb cccc cccm ccdc ccdm ccdr cced ccee ccmb ccmc ccmd ccmm ccrc ccre cd-e cd-r cddb cddr cdec cder cdre cec- cece cecm cedd cede ceeb ceec ceem cemb ceme cemm cemr cer- cerc cerd cere cmbc cmcc cmdb cmdr cmec cmmb cmmc cmrr crbc crcc crce crcr crdc cre- creb crec cred cree crem crmb dbcc dcbc dccb dccc dcdb dddd ddrc ddre debe dec- decc decd dece dedd dede deeb deed deem deer dem- demb demd deme der- derb derc dere derm derr dmcc dmcm dmdc dmrb dmrc drbc dred dree drem ebbc ebbr ebcc ebed eber ecbc ecbe eccb eccc ecce eccm ecdc eced ecem ecrc ecrm ecrr eddc edde eddm ede- edem eder edme edrm eede eeee eerc embd embe embr emcc emer emme emre erbb erbe ercc erce erde ereb erec ered erem erer ermc erme errc erre mbdb mbed mcbc mccc mccd mcdc mcdd mcde mced mcmc mcrc mcrd mdcc mddm mdmc mdme mdrc mebe mec- mecc mecd mece mecr medb medd mede meed meem meer memc meme memr mer- merb merc merd mere merm mmcc mmcd mmcm mmdb mmdc mmmc mmmd mmmm mmrc mr-c mrbb mrbm mrcb mrcc mrce mrdd mreb mred mree mrmc mrmd mrrc rbbb rbbr rcbc rccb rccc rcdc rcde rcrd rdbm rdcm rder rebb rebe recc recd rece recm recr redc redd rede redr reeb reed reem reme rerd rere rred rrmc rrrr