c-cd cccc cccm cccs ccdc ccdm ccdn ccds ccmc ccmd ccmm ccms ccnc ccnm ccns ccsd ccsn ccss ccst cctc cctt cdcs cdms cdnc cdss cmcc cmcs cmmc cmmn cmms cmsc cmsn cmst cmtc cndd cnss cntc cntm cscc cscd cscs csdn csmc cssd cssm cstc cstd cstm csts ctns ctsc ctsn ctss cttn ctts dccc dccs dcct dcds dcms dcns dcsc dcss dctc dctm dcts dddd ddss ddts dmcc dmcm dmcs dmdc dmds dmdt dmss dmst dmtn dmts dncs dnsc dntt dscc dscn dscs dsdm dsmc dsms dssc dssn dsst dstc dstn dsts dtcc dtss mccc mccd mcdc mcdd mcmc mcmt mcsd mcss mcst mctc mcts mdcc mddm mdds mdmc mdnt mdsd mdst mmcc mmcd mmcm mmcs mmct mmdc mmds mmmc mmmd mmmm mmms mmsc mmsd mmst mmts mntn mscc msdc msdn msmc msmm msms mssm msst mstc msts mtns mtnt mtss mtst mtts nccc nccn nccs ncct ncdc ncdn ncds ncmm ncnc ncnd ncsc ncss ncst nctc ndcc ndcs ndmc ndnt ndss ndtc nmdc nmds nmmc nmnt nmtc nnmc nnmt nnnn nnss nntn nscc nscd nscs nsds nsdt nsmc nssc nsss nstc nstd nsts ntcc ntds ntnd ntsc ntss nttm sccc sccm sccs scct scdc scds scmc scmm scms scnd scnt scsc scsd scsn scst sctc sctd sctn scts sdcc sddc sdds sdms sdsc sdsm sdss sdtm smcc smdc smnc smsc smsd smsn smss smtc smtd smtn sncc snns snsd sscc sscs ssdc ssdd ssdm ssmc ssns sssc sssm ssss sstc sstd ssts stcc stcs stdm stds stmc stms stmt stnd stnn stns stsm stss sttc sttd tccc tcdd tcnn tctc tcts tdss tmcc tmcm tmnt tmsc tmtt tncc tndd tnts tscc tsmc tssm tsst tstc tstm tsts ttcn ttms ttss tttt