bbbb bbci bbcm bbdd bblb bcbc bccc bcci bccl bccm bcuc bdbc bddc bdii bdmi bibb bibi bibl bicc bici bidi bidu bild bili bill bilu blcu bldc blic blim blub blud blum bmci bmdb bmic bmmi bubb bubi bubu bucc buci bucu budb budd budi budl budu buic buid buiu bulb buld buli bull bulu bum- bumb c-cd cbbc cbcc cbcl cbcm cbcu cbdb cbdc cbdi cbid cblb cblc ccbc cccb cccc ccci cccl cccm cccu ccdc ccdi ccdm ccic ccid ccii ccil ccim cclc ccli cclm ccmb ccmc ccmd ccmm ccuc cddb cddl cdic cdii cdli cibc cibi cicc cici cicu cidc cidi ciid ciii cili cill cimb cimd cimi ciml cimm ciuc clcd cldc clib clic clii clim clmd club clud clum cmbc cmcc cmdb cmii cmli cmll cmmb cmmc cmmi cmml cub- cubb cubi cucc cuci cucm cudi cui- cuil culb culc culd cull culm cum- dbcc dcbc dccb dccc dcci dccl dccu dcdb dcii dcil dcim dcli dcmi dcml dcmu dddd ddlc ddub dibb dici didi didu diii dili dill dimi dimm dimu dlbd dlib dlii dlil dmcc dmcm dmdc dub- dubb dubc dubu dudd dudu duid duil dulc duli dull dulu dumb dumi dumm duul ibbm ibid ibim ibml icbc icbd icbm iccb iccc icci iccl iccu icdc icdd icdl icll icmc icmi icmm icub idbm iddm idic idid idil idli idub iicd iiii iimc iiuc iium ilbc ilbm ilcd ilic ill- illd illi ilud ilum imbi imcb imci imdb imdi imid imli immi iucc iuiu lbcc lbmc lcbc lccc lccm lcdd ldci lddm libc libu lidb lidl liii lilb lili lill lilu limb limc limi liml limm limu llcc lldb lldc lllc llll llud lmcc lmii luci ludd ludi luli lull lulu lumb lumc lumi mbci mbdb mbim mcbc mcbi mccc mccd mcci mccl mcdc mcdd mcdi mcdl mcic mcii mcil mcli mcmc mcmi mcml mdcc mdci mdcl mddl mddm mdic mdii mdil mdli mdmc mdud mibc micc micd mici mid- midi midl miii mild mili mill milu mim- mimd mimi miui mlcc mlii mmcc mmcd mmci mmcl mmcm mmdb mmdc mmdi mmdl mmic mmii mmli mmmc mmmd mmmm mubi muc- mucc mucu mudd mudi mudl mudu muid muil muld muli mull mulm mulu mumm mumu ubbi ubic ubid ubii ubli ubud ucbc ucci ucdc ucdd ucil ucmc udbc uddi udic udid udim udmc uiml ulbc ulcc ulic ulim ulli ulmi ulmu ulul ulum umb- umbi uulu uuuu