-er c-- ccc ccd cce ccl ccp ccr ccs cct cdc cdd cde cdl cdp cdr cds cdt ce- cec ced cee cel cep cer ces cet cl- clc cld cle cll clp clr cls clt cpc cpd cpe cpl cpp cpr cps cpt crc crd cre crl crp crr crs crt csc csd cse csl csp csr css cst ctc ctd cte ctl ctp ctr cts ctt dcc dcd dce dcl dcp dcr dcs dct ddc ddd dde ddl ddp ddr dds ddt de- dec ded dee del dep der des det dl- dlc dld dle dll dlp dlr dls dlt dpc dpd dpe dpl dpp dpr dps dpt drc drd dre drl drp drr drs drt dsc dsd dse dsl dsp dsr dss dst dtc dtd dte dtl dtp dtr dts dtt ec- ecc ecd ece ecl ecr ecs ect ed- edc edd ede edl edp edr eds edt eec eed eee eel eep eer ees eet elc eld ele ell elp elr els elt ep- epc epd epe epl epp epr eps ept erc erd ere erl erp err ers ert es- esc esd ese esl esp esr ess est etc etd ete etl etp etr ets ett l-p lcc lcd lce lcl lcp lcr lcs lct ldc ldd lde ldl ldp ldr lds ldt lec led lee lel lep ler les let llc lld lle lll llp llr lls llt lpc lpd lpe lpl lpp lpr lps lpt lrc lrd lrp lrr lrs lrt lsc lsd lse lsl lsp lsr lss lst ltc ltd lte ltl ltp ltr lts ltt p-p pcc pcd pce pcl pcp pcr pcs pct pdc pdd pde pdl pdp pdr pds pdt pec ped pee pel pep per pes pet plc pld ple pll plp plr pls plt ppc ppd ppe ppl ppp ppr pps ppt prc prd pre prl prp prr prs prt ps- psc psd pse psl psp psr pss pst pt- ptc ptd pte ptl ptp ptr pts ptt rcc rcd rce rcl rcp rcr rcs rct rdc rdd rde rdl rdp rdr rds rdt re- rec red ree rel rep rer res ret rlc rld rle rll rlp rlr rls rlt rpc rpd rpe rpl rpp rpr rps rpt rrc rrd rrl rrp rrr rrs rrt rsc rsd rse rsl rsp rsr rss rst rtc rtd rte rtl rtp rtr rts rtt scc scd sce scl scp scr scs sct sdc sdd sde sdl sdp sdr sds sdt se- sec sed see sel sep ser ses set slc sld sle sll slp slr sls slt spc spd spe spl spp spr sps spt sr- src srd sre srl srp srr srs srt ss- ssc ssd sse ssl ssp ssr sss sst stc std ste stl stp str sts stt tcc tcd tce tcl tcp tcr tcs tct tdc tdd tde tdl tdp tdr tds tdt te- tec ted tee tel tep ter tes tet tlc tld tle tll tlp tlr tls tlt tpc tpd tpe tpl tpp tpr tps tpt trc trd tre trl trp trr trs trt tsc tsd tse tsl tsp tsr tss tst ttc ttd tte ttl ttp ttr tts ttt