-er eee eef een eer ees eet ef- efe eff efi efr efs eft eie eif eii ein eir eis eit en- ene enf eni enn enr ens ent ere erf eri ern err ers ert es- ese esf esi esn esr ess est ete etf eti etn etr ets ett fee fef fei fen fer fes fet ffe fff ffi ffn ffr ffs fft fie fif fii fin fir fis fit fne fnf fni fnn fnr fns fnt fre frf fri frn frr frs frt fse fsf fsi fsn fsr fss fst fte ftf fti ftn ftr fts ftt i-f ie- iee ief iei ien ier ies iet ife iff ifi ifn ifr ifs ift iie iif iii iin iir iis iit in- ine inf ini inn inr ins int ir- ire irf iri irn irr irs irt is- ise isf isi isn isr iss ist ite itf iti itn its itt n-i ne- nee nef nei nen ner nes net nfe nff nfi nfn nfr nfs nft nie nif nii nin nir nis nit nne nnf nni nnn nns nnt nre nrf nri nrn nrr nrs nrt nse nsf nsi nsn nsr nss nst nte ntf nti ntn ntr nts ntt re- ree ref rei ren rer res ret rfe rff rfi rfn rfr rfs rft rie rif rii rin rir ris rit rni rnn rnr rns rnt rrf rri rrn rrr rrs rrt rse rsf rsi rsn rsr rss rst rte rtf rti rtn rtr rts rtt se- see sef sei sen ser ses set sfe sff sfi sfn sfr sfs sft sie sif sii sin sir sis sit sne snf sni snn snr sns snt sr- sre srf sri srn srr srs srt ss- sse ssf ssi ssn ssr sss sst ste stf sti stn str sts stt te- tee tef tei ten ter tes tet tfe tff tfi tfn tfr tfs tft tie tif tii tin tir tis tit tne tnf tni tnn tnr tns tnt tre trf tri trn trr trs trt tse tsf tsi tsn tsr tss tst tte ttf tti ttn ttr tts ttt