-er ddd dde ddf ddi ddn ddr dds ddt de- ded dee def dei den der des det dfd dfe dff dfi dfn dfr dfs dft di- did die dif dii din dir dis dit dnd dne dnf dni dnn dnr dns dnt drd dre dri drn drr drs drt dsd dse dsf dsi dsn dsr dss dst dtd dte dtf dti dtn dtr dts dtt ed- edd ede edf edi edn edr eds edt eed eee eef een eer ees eet ef- efd efe eff efi efr efs eft eid eie eif eii ein eir eis eit en- end ene enf eni enn enr ens ent erd ere erf eri ern err ers ert es- esd ese esf esi esn esr ess est etd ete etf eti etn etr ets ett fdd fde fdf fdi fdn fdr fds fdt fed fee fef fei fen fer fes fet ffd ffe fff ffi ffn ffr ffs fft fid fie fif fii fin fir fis fit fnd fne fnf fni fnn fnr fns fnt frd fre frf fri frn frr frs frt fsd fse fsf fsi fsn fsr fss fst ftd fte ftf fti ftn ftr fts ftt i-d i-f idd ide idf idi idn idr ids idt ie- ied iee ief iei ien ier ies iet ifd ife iff ifi ifn ifr ifs ift iid iie iif iii iin iir iis iit in- ind ine inf ini inn inr ins int ir- ird ire irf iri irn irr irs irt is- isd ise isf isi isn isr iss ist itd ite itf iti itn its itt n-i ndd nde ndf ndi ndn ndr nds ndt ne- ned nee nef nei nen ner nes net nfd nfe nff nfi nfn nfr nfs nft nid nie nif nii nin nir nis nit nne nnf nni nnn nns nnt nrd nre nrf nri nrn nrr nrs nrt nsd nse nsf nsi nsn nsr nss nst ntd nte ntf nti ntn ntr nts ntt rdd rde rdf rdi rdn rdr rds rdt re- red ree ref rei ren rer res ret rfd rfe rff rfi rfn rfr rfs rft rid rie rif rii rin rir ris rit rnd rni rnn rnr rns rnt rrd rrf rri rrn rrr rrs rrt rsd rse rsf rsi rsn rsr rss rst rtd rte rtf rti rtn rtr rts rtt sdd sde sdf sdi sdn sdr sds sdt se- sed see sef sei sen ser ses set sfd sfe sff sfi sfn sfr sfs sft sid sie sif sii sin sir sis sit snd sne snf sni snn snr sns snt sr- srd sre srf sri srn srr srs srt ss- ssd sse ssf ssi ssn ssr sss sst std ste stf sti stn str sts stt tdd tde tdf tdi tdn tdr tds tdt te- ted tee tef tei ten ter tes tet tfd tfe tff tfi tfn tfr tfs tft tid tie tif tii tin tir tis tit tnd tne tnf tni tnn tnr tns tnt trd tre trf tri trn trr trs trt tsd tse tsf tsi tsn tsr tss tst ttd tte ttf tti ttn ttr tts ttt