-er ddd dde ddf ddm ddn ddr ddu de- ded dee def dem den der deu dfd dfe dff dfm dfn dfr dfu dmd dme dmf dmm dmn dmr dmu dnd dne dnf dnm dnn dnr drd dre drm drn drr dru dud due duf dum dun dur ed- edd ede edf edm edn edr edu eed eee eef eem een eer ef- efd efe eff efm efr em- emd eme emf emm emn emr emu en- end ene enf enm enn enr enu erd ere erf erm ern err eru eu- eud eue euf eun eur fdd fde fdf fdm fdn fdr fdu fed fee fef fem fen fer feu ffd ffe fff ffm ffn ffr ffu fmd fme fmf fmm fmn fmr fmu fnd fne fnf fnm fnn fnr fnu frd fre frf frm frn frr fru fud fue fuf fum fun fur fuu m-f m-r mdd mde mdf mdm mdn mdr mdu med mee mef mem men mer meu mfd mfe mff mfm mfn mfr mfu mmd mme mmf mmm mmn mmr mmu mne mnf mnm mnn mnr mnu mrd mre mrf mrm mrn mrr mru mud mue muf mum mun mur muu ndd nde ndf ndm ndn ndr ndu ne- ned nee nef nem nen ner neu nfd nfe nff nfn nfr nfu nmd nme nmm nmn nmr nmu nne nnf nnm nnn nnu nrd nre nrf nrm nrn nrr nru nud nue num nun nur nuu rdd rde rdf rdm rdn rdr rdu re- red ree ref rem ren rer reu rfd rfe rff rfm rfn rfr rfu rmd rme rmf rmm rmn rmr rnd rnm rnn rnr rnu rrd rrf rrm rrn rrr rru rud rue ruf rum run rur ruu udd ude udf udm udn udr udu ued uee uef uem uen uer ufd ufe uff ufm ufn ufr ufu um- umd ume umf umm umn umr umu un- und une unf unm unn unr unu ur- urd ure urf urm urn urr uru uue uum uun uur uuu