-er eee eef eek eel een eer eet ef- efe eff efi efl efr eft eie eif eii eik eil ein eir eit eke ekf eki ekl ekr ekt ele elf eli elk ell eln elr elt en- ene enf eni enk enl enn enr ent ere erf eri erk erl ern err ert ete etf eti etk etl etn etr ett fee fef fei fek fel fen fer fet ffe fff ffi ffk ffl ffn ffr fft fie fif fii fik fil fin fir fit fkf fki fkk fkl fkt fle flf fli fll fln flr flt fne fnf fni fnk fnl fnn fnr fnt fre frf fri frk frl frn frr frt fte ftf fti ftk ftl ftn ftr ftt i-f ie- iee ief iei iek iel ien ier iet ife iff ifi ifl ifn ifr ift iie iif iii iil iin iir iit ike ikf iki ikk ikl ikr ikt il- ile ilf ili ilk ill iln ilr ilt in- ine inf ini ink inl inn inr int ir- ire irf iri irk irl irn irr irt ite itf iti itk itl itn itt k-t ke- kee kef kei kek kel ken ker ket kff kfi kie kif kii kik kil kin kir kit kke kki kkk kkl kkn kkr kkt kl- klf kli klr klt kn- kne knf kni knk knl knn knr knt krf kri krk krl krn krr krt kte ktf ktk ktl ktn ktr ktt lee lef lei lek lel len ler let lfe lff lfi lfk lfl lfn lfr lft lie lif lii lik lil lin lir lit lkl lkr lkt lle llf lli llk lll lln llr llt lne lni lnk lnl lnn lnr lnt lrf lri lrk lrn lrr lrt lte ltf lti ltk ltl ltr ltt n-i ne- nee nef nei nek nel nen ner net nfe nff nfi nfk nfl nfn nfr nft nie nif nii nik nil nin nir nit nke nkf nki nkk nkn nkr nkt nle nlf nli nlk nll nln nlr nlt nne nnf nni nnk nnl nnn nnt nre nrf nri nrk nrl nrn nrr nrt nte ntf nti ntk ntn ntr ntt re- ree ref rei rek rel ren rer ret rfe rff rfi rfk rfl rfn rfr rft rie rif rii rik ril rin rir rit rke rkf rkk rkt rle rlf rli rll rln rlr rlt rni rnn rnr rnt rrf rri rrk rrl rrn rrr rrt rte rtf rti rtk rtl rtn rtr rtt te- tee tef tei tek tel ten ter tet tfe tff tfi tfk tfl tfn tfr tft tie tif tii tik til tin tir tit tke tkk tkl tkr tkt tle tlf tli tlk tll tln tlr tlt tne tnf tni tnk tnl tnn tnr tnt tre trf tri trk trl trn trr trt tte ttf tti ttk ttl ttn ttr ttt