-er c-- ccc cce ccn ccr ccs ccu ce- cec cee cen ceq cer ces ceu cn- cnc cne cnn cnr cns cnu cqc cqs crc cre crn crq crr crs cru csc cse csn csq csr css csu cuc cue cun cuq cur cus cuu ec- ecc ece ecn ecq ecr ecs ecu eec eee een eer ees en- enc ene enn enr ens enu eqe eqn eqq eqs equ erc ere ern erq err ers eru es- esc ese esn esq esr ess esu eu- euc eue eun eur eus ncc nce ncn ncr ncs ncu ne- nec nee nen ner nes neu nnc nne nnn nns nnu nqc nqs nrc nre nrn nrr nrs nru nsc nse nsn nsr nss nsu nuc nue nun nuq nur nus nuu qcc qcs qec qee qen qne qns qqq qqu qrc qre qrs qru qsc qsr qu- que qur qus rcc rce rcn rcr rcs rcu re- rec ree ren req rer res reu rnc rnn rnr rns rnu rqc rqn rqs rrc rrn rrq rrr rrs rru rsc rse rsn rsq rsr rss rsu ruc rue run rur rus ruu scc sce scn scr scs scu se- sec see sen seq ser ses seu snc sne snn snr sns snu sqn sqq sqr sqs sr- src sre srn srq srr srs ss- ssc sse ssn ssq ssr sss ssu suc sue sun suq sur sus suu ucc uce ucn ucr ucs ucu uec uee uen uer ues un- unc une unn unq unr uns unu ur- urc ure urn urr urs uru usc use usn usr uss usu uuc uue uun uur uus uuu