-er c-- c-j ccc ccd cce ccj ccr ccs cct cdc cdd cde cdj cdr cds cdt ce- cec ced cee cej cer ces cet cjc cjd cjr cjs crc crd cre crj crr crs crt csc csd cse csj csr css cst ctc ctd cte ctr cts ctt dcc dcd dce dcr dcs dct ddc ddd dde ddr dds ddt de- dec ded dee dej der des det dj- djc djd dje djs djt drc drd dre drj drr drs drt dsc dsd dse dsj dsr dss dst dtc dtd dte dtj dtr dts dtt ec- ecc ecd ece ecj ecr ecs ect ed- edc edd ede edj edr eds edt eec eed eee eer ees eet ejc ejd ejt erc erd ere err ers ert es- esc esd ese esr ess est etc etd ete etj etr ets ett j-d jcc jcd jce jcr jcs jct jdc jde jdr jds jdt jec jed jee jej jer jes jet jjc jjj jjr jjs jrc jrr jrs jrt jsc jsd jse jsj jsr jss jst jtc jte jtr jts jtt rcc rcd rce rcj rcr rcs rct rdc rdd rde rdj rdr rds rdt re- rec red ree rer res ret rjc rjr rrc rrd rrr rrs rrt rsc rsd rse rsj rsr rss rst rtc rtd rte rtj rtr rts rtt scc scd sce scj scr scs sct sdc sdd sde sdj sdr sds sdt se- sec sed see sej ser ses set sjc sjd sje sjj sjr sjs sjt sr- src srd sre srj srr srs srt ss- ssc ssd sse ssj ssr sss sst stc std ste stj str sts stt tcc tcd tce tcj tcr tcs tct tdc tdd tde tdr tds tdt te- tec ted tee tej ter tes tet tjc tjd tje tjr tjs trc trd tre trr trs trt tsc tsd tse tsj tsr tss tst ttc ttd tte ttr tts ttt