fff ffg ffi ffr fft fgf fgg fgi fgr fgt fif fig fii fir fit frf frg fri frr frt ftf ftg fti ftr ftt gff gfi gfr gft ggg ggi ggr ggt gif gig gii gir git grf grg gri grr grt gtf gtg gti gtr gtt i-f iff ifg ifi ifr ift igf igg igi igr igt iif iii iir iit ir- irf irg iri irr irt itf itg iti itt rff rfg rfi rfr rft rgf rgg rgi rgr rgt rif rig rii rir rit rrf rrg rri rrr rrt rtf rtg rti rtr rtt tff tfg tfi tfr tft tgf tgg tgi tgr tgt tif tig tii tir tit trf trg tri trr trt ttf ttg tti ttr ttt