fff ffg ffi ffl ffn ffr ffs fft fgf fgg fgi fgl fgn fgr fgs fgt fif fig fii fil fin fir fis fit flf flg fli fll fln flr fls flt fnf fng fni fnl fnn fnr fns fnt frf frg fri frl frn frr frs frt fsf fsg fsi fsl fsn fsr fss fst ftf ftg fti ftl ftn ftr fts ftt gff gfi gfl gfr gfs gft ggg ggi ggn ggr ggs ggt gif gig gii gil gin gir gis git glf glg gli gll gln glr gls glt gnf gni gnl gnn gnr gns gnt grf grg gri grl grn grr grs grt gsf gsg gsi gsl gsn gsr gss gst gtf gtg gti gtl gtn gtr gts gtt i-f iff ifg ifi ifl ifn ifr ifs ift igf igg igi igl ign igr igs igt iif iii iil iin iir iis iit il- ilf ilg ili ill iln ilr ils ilt in- inf ing ini inl inn inr ins int ir- irf irg iri irl irn irr irs irt is- isf isg isi isl isn isr iss ist itf itg iti itl itn its itt lff lfg lfi lfl lfn lfr lfs lft lgf lgg lgi lgl lgn lgr lgs lgt lif lig lii lil lin lir lis lit llf llg lli lll lln llr lls llt lng lni lnl lnn lnr lns lnt lrf lrg lri lrn lrr lrs lrt lsf lsg lsi lsl lsn lsr lss lst ltf ltg lti ltl ltr lts ltt n-i nff nfi nfl nfn nfr nfs nft ngf ngg ngi ngl ngn ngs ngt nif nig nii nil nin nir nis nit nlf nlg nli nll nln nlr nls nlt nnf nng nni nnl nnn nns nnt nrf nrg nri nrl nrn nrr nrs nrt nsf nsg nsi nsl nsn nsr nss nst ntf ntg nti ntn ntr nts ntt rff rfg rfi rfl rfn rfr rfs rft rgf rgg rgi rgn rgr rgs rgt rif rig rii ril rin rir ris rit rlf rlg rli rll rln rlr rls rlt rng rni rnn rnr rns rnt rrf rrg rri rrl rrn rrr rrs rrt rsf rsg rsi rsl rsn rsr rss rst rtf rtg rti rtl rtn rtr rts rtt sff sfg sfi sfl sfn sfr sfs sft sgf sgg sgi sgl sgn sgr sgs sgt sif sig sii sil sin sir sis sit slf slg sli sll sln slr sls slt snf sng sni snl snn snr sns snt sr- srf srg sri srl srn srr srs srt ss- ssf ssg ssi ssl ssn ssr sss sst stf stg sti stl stn str sts stt tff tfg tfi tfl tfn tfr tfs tft tgf tgg tgi tgl tgn tgr tgs tgt tif tig tii til tin tir tis tit tlf tlg tli tll tln tlr tls tlt tnf tng tni tnl tnn tnr tns tnt trf trg tri trl trn trr trs trt tsf tsg tsi tsl tsn tsr tss tst ttf ttg tti ttl ttn ttr tts ttt