-er c-- ccc cce ccl ccn ccr ccs ccu ce- cec cee cel cen cer ces ceu cl- clc cle cll cln clr cls clu cn- cnc cne cnl cnn cnr cns cnu crc cre crl crn crr crs cru csc cse csl csn csr css csu cuc cue cul cun cur cus cuu ec- ecc ece ecl ecn ecr ecs ecu eec eee eel een eer ees elc ele ell eln elr els elu en- enc ene enl enn enr ens enu erc ere erl ern err ers eru es- esc ese esl esn esr ess esu eu- euc eue eul eun eur eus lcc lce lcl lcn lcr lcs lcu lec lee lel len ler les leu llc lle lll lln llr lls llu lnc lne lnl lnn lnr lns lnu lrc lrn lrr lrs lru lsc lse lsl lsn lsr lss lsu luc lue lul lun lur lus luu ncc nce ncl ncn ncr ncs ncu ne- nec nee nel nen ner nes neu nlc nle nll nln nlr nls nlu nnc nne nnl nnn nns nnu nrc nre nrl nrn nrr nrs nru nsc nse nsl nsn nsr nss nsu nuc nue nul nun nur nus nuu rcc rce rcl rcn rcr rcs rcu re- rec ree rel ren rer res reu rlc rle rll rln rlr rls rlu rnc rnn rnr rns rnu rrc rrl rrn rrr rrs rru rsc rse rsl rsn rsr rss rsu ruc rue run rur rus ruu scc sce scl scn scr scs scu se- sec see sel sen ser ses seu slc sle sll sln slr sls slu snc sne snl snn snr sns snu sr- src sre srl srn srr srs ss- ssc sse ssl ssn ssr sss ssu suc sue sul sun sur sus suu ucc uce ucl ucn ucr ucs ucu uec uee uel uen uer ues ulc ule ull uln ulr uls ulu un- unc une unl unn unr uns unu ur- urc ure url urn urr urs uru usc use usl usn usr uss usu uuc uue uun uur uus uuu