fff ffi ffl ffn ffr ffs fft fif fii fil fin fir fis fit flf fli fll fln flr fls flt fnf fni fnl fnn fnr fns fnt frf fri frl frn frr frs frt fsf fsi fsl fsn fsr fss fst ftf fti ftl ftn ftr fts ftt i-f iff ifi ifl ifn ifr ifs ift iif iii iil iin iir iis iit il- ilf ili ill iln ilr ils ilt in- inf ini inl inn inr ins int ir- irf iri irl irn irr irs irt is- isf isi isl isn isr iss ist itf iti itl itn its itt lff lfi lfl lfn lfr lfs lft lif lii lil lin lir lis lit llf lli lll lln llr lls llt lni lnl lnn lnr lns lnt lrf lri lrn lrr lrs lrt lsf lsi lsl lsn lsr lss lst ltf lti ltl ltr lts ltt n-i nff nfi nfl nfn nfr nfs nft nif nii nil nin nir nis nit nlf nli nll nln nlr nls nlt nnf nni nnl nnn nns nnt nrf nri nrl nrn nrr nrs nrt nsf nsi nsl nsn nsr nss nst ntf nti ntn ntr nts ntt rff rfi rfl rfn rfr rfs rft rif rii ril rin rir ris rit rlf rli rll rln rlr rls rlt rni rnn rnr rns rnt rrf rri rrl rrn rrr rrs rrt rsf rsi rsl rsn rsr rss rst rtf rti rtl rtn rtr rts rtt sff sfi sfl sfn sfr sfs sft sif sii sil sin sir sis sit slf sli sll sln slr sls slt snf sni snl snn snr sns snt sr- srf sri srl srn srr srs srt ss- ssf ssi ssl ssn ssr sss sst stf sti stl stn str sts stt tff tfi tfl tfn tfr tfs tft tif tii til tin tir tis tit tlf tli tll tln tlr tls tlt tnf tni tnl tnn tnr tns tnt trf tri trl trn trr trs trt tsf tsi tsl tsn tsr tss tst ttf tti ttl ttn ttr tts ttt