c-- ccc ccd ccl ccn ccr ccs cct cdc cdd cdl cdn cdr cds cdt cl- clc cld cll cln clr cls clt cn- cnc cnd cnl cnn cnr cns cnt crc crd crl crn crr crs crt csc csd csl csn csr css cst ctc ctd ctl ctn ctr cts ctt dcc dcd dcl dcn dcr dcs dct ddc ddd ddl ddn ddr dds ddt dl- dlc dld dll dlr dls dlt dnc dnd dnl dnn dnr dns dnt drc drd drl drn drr drs drt dsc dsd dsl dsn dsr dss dst dtc dtd dtl dtn dtr dts dtt lcc lcd lcl lcn lcr lcs lct ldc ldd ldl ldn ldr lds ldt llc lld lll lln llr lls llt lnc lnd lnl lnn lnr lns lnt lrc lrd lrn lrr lrs lrt lsc lsd lsl lsn lsr lss lst ltc ltd ltl ltr lts ltt ncc ncd ncl ncn ncr ncs nct ndc ndd ndl ndn ndr nds ndt nlc nld nll nln nlr nls nlt nnc nnl nnn nns nnt nrc nrd nrl nrn nrr nrs nrt nsc nsd nsl nsn nsr nss nst ntc ntd ntn ntr nts ntt rcc rcd rcl rcn rcr rcs rct rdc rdd rdl rdn rdr rds rdt rlc rld rll rln rlr rls rlt rnc rnd rnn rnr rns rnt rrc rrd rrl rrn rrr rrs rrt rsc rsd rsl rsn rsr rss rst rtc rtd rtl rtn rtr rts rtt scc scd scl scn scr scs sct sdc sdd sdl sdn sdr sds sdt slc sld sll sln slr sls slt snc snd snl snn snr sns snt sr- src srd srl srn srr srs srt ss- ssc ssd ssl ssn ssr sss sst stc std stl stn str sts stt tcc tcd tcl tcn tcr tcs tct tdc tdd tdl tdn tdr tds tdt tlc tld tll tln tlr tls tlt tnc tnd tnl tnn tnr tns tnt trc trd trl trn trr trs trt tsc tsd tsl tsn tsr tss tst ttc ttd ttl ttn ttr tts ttt