-er c-- c-j ccc cce ccj ccr ccs cct ce- cec cee cej cer ces cet cjc cjr cjs crc cre crj crr crs crt csc cse csj csr css cst ctc cte ctr cts ctt ec- ecc ece ecj ecr ecs ect eec eee eer ees eet ejc ejt erc ere err ers ert es- esc ese esr ess est etc ete etj etr ets ett jcc jce jcr jcs jct jec jee jej jer jes jet jjc jjj jjr jjs jrc jrr jrs jrt jsc jse jsj jsr jss jst jtc jte jtr jts jtt rcc rce rcj rcr rcs rct re- rec ree rer res ret rjc rjr rrc rrr rrs rrt rsc rse rsj rsr rss rst rtc rte rtj rtr rts rtt scc sce scj scr scs sct se- sec see sej ser ses set sjc sje sjj sjr sjs sjt sr- src sre srj srr srs srt ss- ssc sse ssj ssr sss sst stc ste stj str sts stt tcc tce tcj tcr tcs tct te- tec tee tej ter tes tet tjc tje tjr tjs trc tre trr trs trt tsc tse tsj tsr tss tst ttc tte ttr tts ttt