-er c-- ccc cce ccf ccm ccn cco ccr ccs ce- cec cee cef cem cen ceo cer ces cfc cfe cff cfm cfn cfo cfr cfs cmc cme cmf cmm cmn cmo cmr cms cn- cnc cne cnf cnm cnn cno cnr cns co- coc coe cof com con coo cor cos crc cre crf crm crn cro crr crs csc cse csf csm csn cso csr css ec- ecc ece ecf ecm ecn eco ecr ecs eec eee eef eem een eeo eer ees ef- efc efe eff efm efo efr efs em- emc eme emf emm emn emo emr ems en- enc ene enf enm enn eno enr ens eo- eoc eoe eof eom eon eoo eor eos erc ere erf erm ern ero err ers es- esc ese esf esm esn eso esr ess fcc fce fcf fcm fcn fco fcr fcs fec fee fef fem fen feo fer fes ffc ffe fff ffm ffn ffo ffr ffs fmc fme fmf fmm fmn fmo fmr fms fnc fne fnf fnm fnn fnr fns foc foe fof fom fon foo for fos frc fre frf frm frn fro frr frs fsc fse fsf fsm fsn fso fsr fss m-f m-o m-r mc- mcc mce mcf mcm mcn mco mcr mcs mec mee mef mem men meo mer mes mfc mfe mff mfm mfn mfo mfr mfs mmc mme mmf mmm mmn mmo mmr mms mnc mne mnf mnm mnn mno mnr mns moc moe mof mom mon moo mor mos mrc mre mrf mrm mrn mro mrr mrs msc mse msf msm msn mso msr mss ncc nce ncf ncm ncn nco ncr ncs ne- nec nee nef nem nen neo ner nes nfc nfe nff nfn nfo nfr nfs nmc nme nmm nmn nmo nmr nms nnc nne nnf nnm nnn nno nns no- noc noe nof nom non noo nor nos nrc nre nrf nrm nrn nro nrr nrs nsc nse nsf nsm nsn nso nsr nss oc- occ ocf ocm ocn oco ocr ocs oec oee oef oem oen oeo oer oes of- ofc ofe off ofm ofn ofo ofr ofs om- omc ome omf omm omn omo omr oms on- onc one onf onn ono onr ons oo- ooc oof oom oon ooo oor oos or- orc ore orf orm orn oro orr ors os- osc ose osf osm osn oso osr oss rcc rce rcf rcm rcn rco rcr rcs re- rec ree ref rem ren reo rer res rfc rfe rff rfm rfn rfo rfr rfs rmc rme rmf rmm rmn rmo rmr rms rnc rnm rnn rno rnr rns roc roe rof rom ron roo ror ros rrc rrf rrm rrn rrr rrs rsc rse rsf rsm rsn rso rsr rss scc sce scf scm scn sco scr scs se- sec see sef sem sen seo ser ses sfc sfe sff sfm sfn sfo sfr sfs smc sme smf smm smn smo smr sms snc sne snf snm snn sno snr sns soc soe sof som son soo sor sos sr- src sre srf srm srn sro srr srs ss- ssc sse ssf ssm ssn sso ssr sss