bbbb bbci bbcm bbdd bcbc bccc bcci bccm bdbc bddc bdii bdmi bibb bibi bicc bici bidi bmci bmdb bmic bmmi c-cd cbbc cbcc cbcm cbdb cbdc cbdi cbid ccbc cccb cccc ccci cccm ccdc ccdi ccdm ccic ccid ccii ccim ccmb ccmc ccmd ccmm cddb cdic cdii cibc cibi cicc cici cidc cidi ciid ciii cimb cimd cimi cimm cmbc cmcc cmdb cmii cmmb cmmc cmmi dbcc dcbc dccb dccc dcci dcdb dcii dcim dcmi dddd dibb dici didi diii dimi dimm dmcc dmcm dmdc ibbm ibid ibim icbc icbd icbm iccb iccc icci icdc icdd icmc icmi icmm idbm iddm idic idid iicd iiii iimc imbi imcb imci imdb imdi imid immi mbci mbdb mbim mcbc mcbi mccc mccd mcci mcdc mcdd mcdi mcic mcii mcmc mcmi mdcc mdci mddm mdic mdii mdmc mibc micc micd mici mid- midi miii mim- mimd mimi mmcc mmcd mmci mmcm mmdb mmdc mmdi mmic mmii mmmc mmmd mmmm