c-cd cccc cccl cccm cccs ccdc ccdm ccdn ccds cclc cclm ccls ccmc ccmd ccmm ccms ccnc ccnm ccns ccsd ccsl ccsn ccss ccst cctc cctl cctt cdcs cddl cdls cdms cdnc cdss clcd cldc clmd clsc clsm cltc clts cmcc cmcs cmll cmmc cmml cmmn cmms cmsc cmsn cmst cmtc cndd cnsl cnss cntc cntm cscc cscd cscl cscs csdn csld csmc cssd cssm cstc cstd cstm csts ctls ctns ctsc ctsn ctss cttn ctts dccc dccl dccs dcct dcds dcls dcml dcms dcns dcsc dcss dctc dctm dcts dddd ddlc ddss ddts dlcs dlst dmcc dmcm dmcs dmdc dmds dmdt dmss dmst dmtn dmts dncs dnsc dntt dscc dscn dscs dsdm dsls dsmc dsml dsms dssc dssn dsst dstc dstn dsts dtcc dtss lccc lccm lccs lcdd lcds lcls lcms lcsc lcsd lctl lctm lcts lddm ldls llcc llcs lldc llds lllc llll llms lmcc lmds lmln lmms lmnt lndn lntc lntm lnts lscm lscs lsds lsts ltcc ltcs ltds ltns ltnt lttc mccc mccd mccl mcdc mcdd mcdl mclt mcmc mcml mcmt mcsd mcss mcst mctc mcts mdcc mdcl mddl mddm mdds mdmc mdnt mdsd mdst mlcc mlss mmcc mmcd mmcl mmcm mmcs mmct mmdc mmdl mmds mmmc mmmd mmmm mmms mmsc mmsd mmst mmts mnls mntn mscc mscl msdc msdn msmc msml msmm msms mssm msst mstc msts mtld mtns mtnt mtsl mtss mtst mtts nccc nccn nccs ncct ncdc ncdn ncds nclc ncln ncmm ncnc ncnd ncsc ncsl ncss ncst nctc ndcc ndcs ndls ndmc ndnt ndsl ndss ndtc nlcc nlcs nlls nlsc nmdc nmds nmls nmmc nmml nmnt nmtc nnls nnmc nnmt nnnn nnsl nnss nntn nscc nscd nscl nscs nsdl nsds nsdt nsls nsmc nssc nsss nstc nstd nstl nsts ntcc ntds ntnd ntsc ntss nttm sccc sccl sccm sccs scct scdc scds scl- sclc sclm scls scmc scmm scms scnd scnt scsc scsd scsl scsn scst sctc sctd sctl sctn scts sdcc sddc sdds sdlc sdls sdlt sdms sdsc sdsl sdsm sdss sdtm slcc slcd slds sllm slln slmm slsc slst slts smcc smdc smlc smls smnc smsc smsd smsn smss smtc smtd smtn sncc snns snsd sscc sscs ssdc ssdd ssdm sslc sslt ssmc ssml ssns sssc sssm ssss sstc sstd sstl ssts stcc stcs stdm stds stlc stld stln stlt stmc stms stmt stnd stnn stns stsm stss sttc sttd tccc tcdd tcnn tctc tcts tdls tdss tmcc tmcm tmnt tmsc tmtt tncc tndd tnts tscc tsmc tssm tsst tstc tstm tsts ttcn ttml ttms ttss tttt