c-cd cccc cccl cccs ccdc ccdn ccdr ccds cclc ccls ccnc ccnr ccns ccrc ccrl ccrs ccrt ccsd ccsl ccsn ccss ccst cctc cctl cctt cd-r cdcs cddl cddr cdls cdnc cdrs cdss clcd cldc cldr clrd clrs clsc cltc clts cndd cnrc cnrr cnrt cnsl cnss cntc cntr crcc crcr crdc crls crns crrt crss crst crtc crtl crts cscc cscd cscl cscr cscs csdn csdr csld cslr csrc csrd csrs cssd cssr cstc cstd cstr csts ctls ctns ctrc ctrl ctrn ctrs ctsc ctsn ctss cttn ctts dccc dccl dccs dcct dcds dcls dcns dcsc dcss dctc dcts dddd ddlc ddrc ddss ddts dlcs dlrs dlst dncs dnrc dnsc dntt drrs dscc dscn dscr dscs dsdr dsls dsrc dsrr dssc dssn dsst dstc dstn dsts dtcc dtrl dtss lccc lccs lcdd lcdr lcds lcls lcrd lcrl lcrs lcsc lcsd lcsr lctl lcts ldls ldrs llcc llcs lldc llds lllc llll lncr lndn lntc lnts lrcs lrdd lrds lrrc lrrr lrst lrts ls-r lscs lsds lsrc lssr lsts ltcc ltcs ltds ltns ltnt ltrs ltsr lttc lttr nccc nccn nccr nccs ncct ncdc ncdn ncdr ncds nclc ncln nclr ncnc ncnd ncrc ncsc ncsl ncss ncst nctc nctr ndcc ndcs ndls ndnt ndrc ndsl ndss ndtc nlcc nlcs nlls nlsc nnls nnnn nnsl nnss nntn nrcs nrdc nrds nrrc nrrd nrrl nrsc nrtl nrts nscc nscd nscl nscs nsdl nsds nsdt nslr nsls nsnr nsrc nsrd nsrl nssc nssr nsss nstc nstd nstl nsts ntcc ntds ntnd ntrc ntrl ntsc ntss nttr rccc rccs rcdc rcds rcls rcnl rcnr rcrd rcsc rcsd rcsl rcss rctc rcts rlcs rlds rldt rlls rncs rndc rnds rnld rnnt rntd rrrr rscc rscn rscs rsdd rsdl rsds rslc rsnn rsnr rssl rsts rtcc rtdt rtls rtlt rtnd rtns rtss rtts sccc sccl sccs scct scdc scds scl- sclc scls scnd scnr scnt scr- scrc scrn scrs scsc scsd scsl scsn scsr scst sctc sctd sctl sctn sctr scts sdcc sddc sdds sdlc sdls sdlt sdrc sdrs sdsc sdsl sdss slcc slcd slds slln slrc slrn slrs slsc slst slts sncc snns snrs snsd sntr srcc srct srnn srsd srtr sscc sscs ssdc ssdd sslc sslt ssns ssrc ssrl ssrs sssc ssss sstc sstd sstl ssts stcc stcs stds stlc stld stln stlt stnd stnn stnr stns strc strd strn strs stss sttc sttd sttr tccc tcdd tcnn tctc tcts tdls tdss tldr tlrs tncc tndd tnts trcc trcl trsd trst trtc trtr tscc tssr tsst tstc tsts ttcn ttss tttt