bbbb bbci bbcm bbrc bcbc bccc bcci bccm bibb bibi bicc bici birb biri birr bmci bmic bmir bmmi brcb bric brim brmc brrm brrr cbbc cbcc cbcm cbcr cbir cbrm ccbc cccb cccc ccci cccm ccic ccii ccim ccir ccmb ccmc ccmm ccrc ccri cibc cibi cicc cici cicr ciii cimb cimi cimm cimr cirb circ ciri cirm cirr cmbc cmcc cmii cmir cmmb cmmc cmmi cmri cmrr crbc crcc crcr crib cric crim crmb ibbm ibim ibrc ibri icbc icbm iccb iccc icci iccr icmc icmi icmm icrc icrm icrr iiii iimc iirc imbi imcb imci imir immi imrc imri imrr irbm ircc iri- iric irmc irrc irri mbci mbim mcbc mcbi mccc mcci mcic mcii mcmc mcmi mcrc mcri mibc micc mici micr miii mim- mimi mirc miri mirr mmcc mmci mmcm mmic mmii mmmc mmmm mmrc mr-c mrbb mrbm mrcb mrcc mrmc mrrc rbbb rbbr rcbc rccb rccc rcic rib- ricc rimi rimm riri rrmc rrrr