-er c-- ccc cce ccn cco ccr ccs ccu ce- cec cee cen ceo ceq cer ces ceu cn- cnc cne cnn cno cnr cns cnu co- coc coe con coo coq cor cos cou cqc cqo cqs crc cre crn cro crq crr crs cru csc cse csn cso csq csr css csu cuc cue cun cuo cuq cur cus cuu ec- ecc ece ecn eco ecq ecr ecs ecu eec eee een eeo eer ees en- enc ene enn eno enr ens enu eo- eoc eoe eon eoo eoq eor eos eou eqe eqn eqq eqs equ erc ere ern ero erq err ers eru es- esc ese esn eso esq esr ess esu eu- euc eue eun eur eus ncc nce ncn nco ncr ncs ncu ne- nec nee nen neo ner nes neu nnc nne nnn nno nns nnu no- noc noe non noo nor nos nou nqc nqs nrc nre nrn nro nrr nrs nru nsc nse nsn nso nsr nss nsu nuc nue nun nuo nuq nur nus nuu oc- occ ocn oco ocr ocs ocu oec oee oen oeo oer oes on- onc one onn ono onr ons onu oo- ooc oon ooo oor oos oqo or- orc ore orn oro orr ors oru os- osc ose osn oso osq osr oss osu ou- ouc oue oun ouo our ous qcc qco qcs qec qee qen qeo qne qns qoo qor qos qqq qqu qrc qre qrs qru qsc qso qsr qu- que quo qur qus rcc rce rcn rco rcr rcs rcu re- rec ree ren reo req rer res reu rnc rnn rno rnr rns rnu roc roe ron roo ror ros rou rqc rqn rqs rrc rrn rrq rrr rrs rru rsc rse rsn rso rsq rsr rss rsu ruc rue run ruo rur rus ruu scc sce scn sco scr scs scu se- sec see sen seo seq ser ses seu snc sne snn sno snr sns snu soc soe son soo soq sor sos sou sqn sqq sqr sqs sr- src sre srn sro srq srr srs ss- ssc sse ssn sso ssq ssr sss ssu suc sue sun suo suq sur sus suu ucc uce ucn uco ucr ucs ucu uec uee uen uer ues un- unc une unn uno unq unr uns unu uoc uoe uon uoo uor uos ur- urc ure urn uro urr urs uru usc use usn uso usr uss usu uuc uue uun uur uus uuu