-er c-- ccc ccd cce ccf ccm ccn ccr cdc cdd cde cdf cdm cdn cdr ce- cec ced cee cef cem cen cer cfc cfd cfe cff cfm cfn cfr cmc cmd cme cmf cmm cmn cmr cn- cnc cnd cne cnf cnm cnn cnr crc crd cre crf crm crn crr dcc dcd dce dcf dcm dcn dcr ddc ddd dde ddf ddm ddn ddr de- dec ded dee def dem den der dfc dfd dfe dff dfm dfn dfr dmc dmd dme dmf dmm dmn dmr dnc dnd dne dnf dnm dnn dnr drc drd dre drm drn drr ec- ecc ecd ece ecf ecm ecn ecr ed- edc edd ede edf edm edn edr eec eed eee eef eem een eer ef- efc efd efe eff efm efr em- emc emd eme emf emm emn emr en- enc end ene enf enm enn enr erc erd ere erf erm ern err fcc fcd fce fcf fcm fcn fcr fdc fdd fde fdf fdm fdn fdr fec fed fee fef fem fen fer ffc ffd ffe fff ffm ffn ffr fmc fmd fme fmf fmm fmn fmr fnc fnd fne fnf fnm fnn fnr frc frd fre frf frm frn frr m-f m-r mc- mcc mcd mce mcf mcm mcn mcr mdc mdd mde mdf mdm mdn mdr mec med mee mef mem men mer mfc mfd mfe mff mfm mfn mfr mmc mmd mme mmf mmm mmn mmr mnc mne mnf mnm mnn mnr mrc mrd mre mrf mrm mrn mrr ncc ncd nce ncf ncm ncn ncr ndc ndd nde ndf ndm ndn ndr ne- nec ned nee nef nem nen ner nfc nfd nfe nff nfn nfr nmc nmd nme nmm nmn nmr nnc nne nnf nnm nnn nrc nrd nre nrf nrm nrn nrr rcc rcd rce rcf rcm rcn rcr rdc rdd rde rdf rdm rdn rdr re- rec red ree ref rem ren rer rfc rfd rfe rff rfm rfn rfr rmc rmd rme rmf rmm rmn rmr rnc rnd rnm rnn rnr rrc rrd rrf rrm rrn rrr