-er c-- ccc cce ccl ccn ccr ccs cct ce- cec cee cel cen cer ces cet cl- clc cle cll cln clr cls clt cn- cnc cne cnl cnn cnr cns cnt crc cre crl crn crr crs crt csc cse csl csn csr css cst ctc cte ctl ctn ctr cts ctt ec- ecc ece ecl ecn ecr ecs ect eec eee eel een eer ees eet elc ele ell eln elr els elt en- enc ene enl enn enr ens ent erc ere erl ern err ers ert es- esc ese esl esn esr ess est etc ete etl etn etr ets ett lcc lce lcl lcn lcr lcs lct lec lee lel len ler les let llc lle lll lln llr lls llt lnc lne lnl lnn lnr lns lnt lrc lrn lrr lrs lrt lsc lse lsl lsn lsr lss lst ltc lte ltl ltr lts ltt ncc nce ncl ncn ncr ncs nct ne- nec nee nel nen ner nes net nlc nle nll nln nlr nls nlt nnc nne nnl nnn nns nnt nrc nre nrl nrn nrr nrs nrt nsc nse nsl nsn nsr nss nst ntc nte ntn ntr nts ntt rcc rce rcl rcn rcr rcs rct re- rec ree rel ren rer res ret rlc rle rll rln rlr rls rlt rnc rnn rnr rns rnt rrc rrl rrn rrr rrs rrt rsc rse rsl rsn rsr rss rst rtc rte rtl rtn rtr rts rtt scc sce scl scn scr scs sct se- sec see sel sen ser ses set slc sle sll sln slr sls slt snc sne snl snn snr sns snt sr- src sre srl srn srr srs srt ss- ssc sse ssl ssn ssr sss sst stc ste stl stn str sts stt tcc tce tcl tcn tcr tcs tct te- tec tee tel ten ter tes tet tlc tle tll tln tlr tls tlt tnc tne tnl tnn tnr tns tnt trc tre trl trn trr trs trt tsc tse tsl tsn tsr tss tst ttc tte ttl ttn ttr tts ttt