c-cd cccc cccm cccs ccdc ccdm ccdn ccdr ccds ccmc ccmd ccmm ccms ccnc ccnm ccnr ccns ccrc ccrs ccrt ccsd ccsn ccss ccst cctc cctt cd-r cdcs cddr cdms cdnc cdrs cdss cmcc cmcs cmdr cmmc cmmn cmms cmrn cmrr cmrs cmsc cmsn cmst cmtc cndd cnrc cnrr cnrt cnss cntc cntm cntr crcc crcr crdc crmn crms crns crrt crss crst crtc crtm crts cscc cscd cscr cscs csdn csdr csmc csrc csrd csrs cssd cssm cssr cstc cstd cstm cstr csts ctns ctrc ctrm ctrn ctrs ctsc ctsn ctss cttn ctts dccc dccs dcct dcds dcms dcns dcsc dcss dctc dctm dcts dddd ddrc ddss ddts dmcc dmcm dmcs dmdc dmds dmdt dmrc dmss dmst dmtn dmts dncs dnrc dnsc dntt drms drrs dscc dscn dscr dscs dsdm dsdr dsmc dsms dsrc dsrr dssc dssn dsst dstc dstn dsts dtcc dtss mccc mccd mcdc mcdd mcmc mcmt mcrc mcrd mcsd mcss mcst mctc mcts mdcc mddm mdds mdmc mdnt mdrc mdsd mdst mmcc mmcd mmcm mmcs mmct mmdc mmds mmmc mmmd mmmm mmms mmrc mmsc mmsd mmst mmts mndr mntn mr-c mrcc mrcs mrdd mrds mrmc mrmd mrnc mrrc mrsc mrsd mrtm mrtn mrts mrtt mscc msdc msdn msmc msmm msms msrt mssm mssr msst mstc mstr msts mtcr mtns mtnt mtrc mtrr mtss mtst mttr mtts nccc nccn nccr nccs ncct ncdc ncdn ncdr ncds ncmm ncnc ncnd ncrc ncsc ncss ncst nctc nctr ndcc ndcs ndmc ndnt ndrc ndss ndtc nmdc nmds nmmc nmnt nmrc nmtc nnmc nnmt nnnn nnss nntn nrcs nrdc nrds nrrc nrrd nrsc nrts nscc nscd nscs nsds nsdt nsmc nsnr nsrc nsrd nssc nssr nsss nstc nstd nsts ntcc ntds ntnd ntrc ntsc ntss nttm nttr rccc rccs rcdc rcds rcms rcnr rcrd rcsc rcsd rcss rctc rcts rdcm rdms rmsc rmst rncs rndc rndm rnds rnnt rntd rrmc rrrr rscc rscn rscs rsdd rsds rsnn rsnr rsts rtcc rtcm rtdt rtmc rtms rtnd rtns rtss rtts sccc sccm sccs scct scdc scds scmc scmm scms scnd scnr scnt scr- scrc scrn scrs scsc scsd scsn scsr scst sctc sctd sctn sctr scts sdcc sddc sdds sdms sdrc sdrs sdsc sdsm sdss sdtm smcc smdc smdr smnc smrt smsc smsd smsn smss smtc smtd smtn sncc snns snrs snsd sntr srcc srct srmc srnn srsd srtr sscc sscs ssdc ssdd ssdm ssmc ssns ssrc ssrm ssrs sssc sssm ssss sstc sstd ssts stcc stcs stdm stds stmc stms stmt stnd stnn stnr stns strc strd strn strs stsm stss sttc sttd sttr tccc tcdd tcnn tctc tcts tdss tmcc tmcm tmnt tmsc tmtt tncc tndd tnts trcc trmd trms trsd trst trtc trtr tscc tsmc tssm tssr tsst tstc tstm tsts ttcn ttms ttss tttt