-th fff ffg ffh ffi ffr fft ffy fgf fgg fgh fgi fgr fgt fhf fhg fhh fhi fhr fif fig fih fii fir fit frf frg frh fri frr frt fry ftf ftg fth fti ftr ftt fty fy- fyi gff gfh gfi gfr gft gfy ggg ggh ggi ggr ggt ghg ghh ghi ghr ght gif gig gih gii gir git giy grf grg grh gri grr grt gry gtf gtg gth gti gtr gtt gty gy- gyf gyr h-i hff hfg hfh hfi hfr hft hfy hgf hgg hgh hgi hgr hgt hgy hhf hhg hhh hhi hhr hht hhy hif hig hih hii hir hit hr- hrf hrg hrh hri hrr hrt htf htg hth hti htr htt hty hy- hyg hyh hyi hyr hyt hyy i-f iff ifg ifi ifr ift ify igf igg igh igi igr igt igy ihf ihg ihh ihi ihr iht ihy iif iih iii iir iit ir- irf irg iri irr irt iry itf itg ith iti itt ity iyr iyt iyy rff rfg rfh rfi rfr rft rgf rgg rgh rgi rgr rgt rh- rhf rhg rhh rhi rhr rht rif rig rih rii rir rit riy rrf rrg rrh rri rrr rrt rtf rtg rti rtr rtt rty ry- ryf ryg ryr ryy tff tfg tfh tfi tfr tft tgf tgg tgh tgi tgr tgt tgy th- thf thg thh thi thr tht thy tif tig tih tii tir tit tiy trf trg trh tri trr trt try ttf ttg tth tti ttr ttt tty tyf tyg tyr tyt yff yfr yft yhi yht yif yig yih yii yir yit yrf yrg yrt ytf yth ytr ytt yyf yyg yyt yyy