-er c-- ccc cce ccf ccn cco ccr ccs ccu ce- cec cee cef cen ceo cer ces ceu cfc cfe cff cfn cfo cfr cfs cfu cn- cnc cne cnf cnn cno cnr cns cnu co- coc coe cof con coo cor cos cou crc cre crf crn cro crr crs cru csc cse csf csn cso csr css csu cuc cue cuf cun cuo cur cus cuu ec- ecc ece ecf ecn eco ecr ecs ecu eec eee eef een eeo eer ees ef- efc efe eff efo efr efs en- enc ene enf enn eno enr ens enu eo- eoc eoe eof eon eoo eor eos eou erc ere erf ern ero err ers eru es- esc ese esf esn eso esr ess esu eu- euc eue euf eun eur eus fcc fce fcf fcn fco fcr fcs fcu fec fee fef fen feo fer fes feu ffc ffe fff ffn ffo ffr ffs ffu fnc fne fnf fnn fnr fns fnu foc foe fof fon foo for fos fou frc fre frf frn fro frr frs fru fsc fse fsf fsn fso fsr fss fsu fue fuf fun fuo fur fus fuu ncc nce ncf ncn nco ncr ncs ncu ne- nec nee nef nen neo ner nes neu nfc nfe nff nfn nfo nfr nfs nfu nnc nne nnf nnn nno nns nnu no- noc noe nof non noo nor nos nou nrc nre nrf nrn nro nrr nrs nru nsc nse nsf nsn nso nsr nss nsu nuc nue nun nuo nur nus nuu oc- occ ocf ocn oco ocr ocs ocu oec oee oef oen oeo oer oes of- ofc ofe off ofn ofo ofr ofs ofu on- onc one onf onn ono onr ons onu oo- ooc oof oon ooo oor oos or- orc ore orf orn oro orr ors oru os- osc ose osf osn oso osr oss osu ou- ouc oue ouf oun ouo our ous rcc rce rcf rcn rco rcr rcs rcu re- rec ree ref ren reo rer res reu rfc rfe rff rfn rfo rfr rfs rfu rnc rnn rno rnr rns rnu roc roe rof ron roo ror ros rou rrc rrf rrn rrr rrs rru rsc rse rsf rsn rso rsr rss rsu ruc rue ruf run ruo rur rus ruu scc sce scf scn sco scr scs scu se- sec see sef sen seo ser ses seu sfc sfe sff sfn sfo sfr sfs sfu snc sne snf snn sno snr sns snu soc soe sof son soo sor sos sou sr- src sre srf srn sro srr srs ss- ssc sse ssf ssn sso ssr sss ssu suc sue suf sun suo sur sus suu ucc uce ucf ucn uco ucr ucs ucu uec uee uef uen uer ues ufc ufe uff ufn ufo ufr ufs ufu un- unc une unf unn uno unr uns unu uoc uoe uon uoo uor uos ur- urc ure urf urn uro urr urs uru usc use usf usn uso usr uss usu uuc uue uun uur uus uuu