-er ddd dde ddf ddi ddk ddn ddr de- ded dee def dei dek den der dfd dfe dff dfi dfk dfn dfr di- did die dif dii dik din dir dke dki dkk dkr dnd dne dnf dni dnk dnn dnr drd dre dri drk drn drr ed- edd ede edf edi edk edn edr eed eee eef eek een eer ef- efd efe eff efi efr eid eie eif eii eik ein eir ekd eke ekf eki ekr en- end ene enf eni enk enn enr erd ere erf eri erk ern err fdd fde fdf fdi fdk fdn fdr fed fee fef fei fek fen fer ffd ffe fff ffi ffk ffn ffr fid fie fif fii fik fin fir fkf fki fkk fnd fne fnf fni fnk fnn fnr frd fre frf fri frk frn frr i-d i-f idd ide idf idi idk idn idr ie- ied iee ief iei iek ien ier ifd ife iff ifi ifn ifr iid iie iif iii iin iir ike ikf iki ikk ikr in- ind ine inf ini ink inn inr ir- ird ire irf iri irk irn irr kde kdf kdk kdr ke- ked kee kef kei kek ken ker kfd kff kfi kid kie kif kii kik kin kir kke kki kkk kkn kkr kn- knd kne knf kni knk knn knr krd krf kri krk krn krr n-i ndd nde ndf ndi ndk ndn ndr ne- ned nee nef nei nek nen ner nfd nfe nff nfi nfk nfn nfr nid nie nif nii nik nin nir nke nkf nki nkk nkn nkr nne nnf nni nnk nnn nrd nre nrf nri nrk nrn nrr rdd rde rdf rdi rdn rdr re- red ree ref rei rek ren rer rfd rfe rff rfi rfk rfn rfr rid rie rif rii rik rin rir rke rkf rkk rnd rni rnn rnr rrd rrf rri rrk rrn rrr