-er ddd dde ddf ddi ddn ddr de- ded dee def dei den der dfd dfe dff dfi dfn dfr di- did die dif dii din dir dnd dne dnf dni dnn dnr drd dre dri drn drr ed- edd ede edf edi edn edr eed eee eef een eer ef- efd efe eff efi efr eid eie eif eii ein eir en- end ene enf eni enn enr erd ere erf eri ern err fdd fde fdf fdi fdn fdr fed fee fef fei fen fer ffd ffe fff ffi ffn ffr fid fie fif fii fin fir fnd fne fnf fni fnn fnr frd fre frf fri frn frr i-d i-f idd ide idf idi idn idr ie- ied iee ief iei ien ier ifd ife iff ifi ifn ifr iid iie iif iii iin iir in- ind ine inf ini inn inr ir- ird ire irf iri irn irr n-i ndd nde ndf ndi ndn ndr ne- ned nee nef nei nen ner nfd nfe nff nfi nfn nfr nid nie nif nii nin nir nne nnf nni nnn nrd nre nrf nri nrn nrr rdd rde rdf rdi rdn rdr re- red ree ref rei ren rer rfd rfe rff rfi rfn rfr rid rie rif rii rin rir rnd rni rnn rnr rrd rrf rri rrn rrr