-er c-- ccc cce ccl ccn ccp ccr ccs ce- cec cee cel cen cep cer ces cl- clc cle cll cln clp clr cls cn- cnc cne cnl cnn cnp cnr cns cpc cpe cpl cpn cpp cpr cps crc cre crl crn crp crr crs csc cse csl csn csp csr css ec- ecc ece ecl ecn ecr ecs eec eee eel een eep eer ees elc ele ell eln elp elr els en- enc ene enl enn enp enr ens ep- epc epe epl epn epp epr eps erc ere erl ern erp err ers es- esc ese esl esn esp esr ess l-p lcc lce lcl lcn lcp lcr lcs lec lee lel len lep ler les llc lle lll lln llp llr lls lnc lne lnl lnn lnp lnr lns lpc lpe lpl lpn lpp lpr lps lrc lrn lrp lrr lrs lsc lse lsl lsn lsp lsr lss ncc nce ncl ncn ncp ncr ncs ne- nec nee nel nen nep ner nes nlc nle nll nln nlp nlr nls nnc nne nnl nnn nnp nns npc npe npl npn npp npr nps nrc nre nrl nrn nrp nrr nrs nsc nse nsl nsn nsp nsr nss p-p pcc pce pcl pcn pcp pcr pcs pec pee pel pen pep per pes plc ple pll pln plp plr pls pn- pnc pne pnl pnn pnp pnr pns ppc ppe ppl ppn ppp ppr pps prc pre prl prn prp prr prs ps- psc pse psl psn psp psr pss rcc rce rcl rcn rcp rcr rcs re- rec ree rel ren rep rer res rlc rle rll rln rlp rlr rls rnc rnn rnp rnr rns rpc rpe rpl rpn rpp rpr rps rrc rrl rrn rrp rrr rrs rsc rse rsl rsn rsp rsr rss scc sce scl scn scp scr scs se- sec see sel sen sep ser ses slc sle sll sln slp slr sls snc sne snl snn snp snr sns spc spe spl spn spp spr sps sr- src sre srl srn srp srr srs ss- ssc sse ssl ssn ssp ssr sss