-er eee eef eel een eer ef- efe eff efi efl efr eie eif eii eil ein eir ele elf eli ell eln elr en- ene enf eni enl enn enr ere erf eri erl ern err fee fef fei fel fen fer ffe fff ffi ffl ffn ffr fie fif fii fil fin fir fle flf fli fll fln flr fne fnf fni fnl fnn fnr fre frf fri frl frn frr i-f ie- iee ief iei iel ien ier ife iff ifi ifl ifn ifr iie iif iii iil iin iir il- ile ilf ili ill iln ilr in- ine inf ini inl inn inr ir- ire irf iri irl irn irr lee lef lei lel len ler lfe lff lfi lfl lfn lfr lie lif lii lil lin lir lle llf lli lll lln llr lne lni lnl lnn lnr lrf lri lrn lrr n-i ne- nee nef nei nel nen ner nfe nff nfi nfl nfn nfr nie nif nii nil nin nir nle nlf nli nll nln nlr nne nnf nni nnl nnn nre nrf nri nrl nrn nrr re- ree ref rei rel ren rer rfe rff rfi rfl rfn rfr rie rif rii ril rin rir rle rlf rli rll rln rlr rni rnn rnr rrf rri rrl rrn rrr