-er ddd dde ddf ddm ddn ddr ddt de- ded dee def dem den der det dfd dfe dff dfm dfn dfr dft dmd dme dmf dmm dmn dmr dmt dnd dne dnf dnm dnn dnr dnt drd dre drm drn drr drt dtd dte dtf dtm dtn dtr dtt ed- edd ede edf edm edn edr edt eed eee eef eem een eer eet ef- efd efe eff efm efr eft em- emd eme emf emm emn emr emt en- end ene enf enm enn enr ent erd ere erf erm ern err ert etd ete etf etm etn etr ett fdd fde fdf fdm fdn fdr fdt fed fee fef fem fen fer fet ffd ffe fff ffm ffn ffr fft fmd fme fmf fmm fmn fmr fmt fnd fne fnf fnm fnn fnr fnt frd fre frf frm frn frr frt ftd fte ftf ftm ftn ftr ftt m-f m-r mdd mde mdf mdm mdn mdr mdt med mee mef mem men mer met mfd mfe mff mfm mfn mfr mft mmd mme mmf mmm mmn mmr mmt mne mnf mnm mnn mnr mnt mrd mre mrf mrm mrn mrr mrt mtd mte mtf mtm mtn mtr mtt ndd nde ndf ndm ndn ndr ndt ne- ned nee nef nem nen ner net nfd nfe nff nfn nfr nft nmd nme nmm nmn nmr nmt nne nnf nnm nnn nnt nrd nre nrf nrm nrn nrr nrt ntd nte ntf ntm ntn ntr ntt rdd rde rdf rdm rdn rdr rdt re- red ree ref rem ren rer ret rfd rfe rff rfm rfn rfr rft rmd rme rmf rmm rmn rmr rmt rnd rnm rnn rnr rnt rrd rrf rrm rrn rrr rrt rtd rte rtf rtm rtn rtr rtt tdd tde tdf tdm tdn tdr tdt te- ted tee tef tem ten ter tet tfd tfe tff tfm tfn tfr tft tmd tme tmf tmm tmn tmr tmt tnd tne tnf tnm tnn tnr tnt trd tre trf trm trn trr trt ttd tte ttf ttm ttn ttr ttt