fff ffg ffi ffo ffp ffr fft fgf fgg fgi fgp fgr fgt fif fig fii fip fir fit fof fog foi foo fop for fot fpg fpi fpo fpp fpr fpt frf frg fri fro frp frr frt ftf ftg fti fto ftp ftr ftt g-p gff gfi gfo gfp gfr gft ggg ggi ggo ggp ggr ggt gif gig gii gio gip gir git gof gog goi goo gop gor got gpf gpg gpi gpo gpp gpr gpt grf grg gri gro grp grr grt gtf gtg gti gto gtp gtr gtt i-f iff ifg ifi ifo ifp ifr ift igf igg igi igo igp igr igt iif iii iio iip iir iit io- iof iog ioi ioo iop ior iot ipf ipg ipi ipo ipp ipr ipt ir- irf irg iri iro irp irr irt itf itg iti ito itp itt o-i of- off ofg ofi ofo ofp ofr oft ogf ogg ogi ogo ogp ogt oif oii oio oip oir oit oo- oof oog ooi ooo oop oor oot op- opf opg opi opo opp opr opt or- orf org ori oro orp orr ort ot- otf otg oti oto otp otr ott p-p pff pfg pfi pfo pfp pfr pft pgf pgg pgi pgo pgp pgr pgt pif pig pii pio pip pir pit pof pog poi poo pop por pot ppf ppg ppi ppo ppp ppr ppt prf prg pri pro prp prr prt pt- ptf ptg pti pto ptp ptr ptt rff rfg rfi rfo rfp rfr rft rgf rgg rgi rgo rgp rgr rgt rif rig rii rio rip rir rit rof rog roi roo rop ror rot rpf rpg rpi rpo rpp rpr rpt rrf rrg rri rrp rrr rrt rtf rtg rti rto rtp rtr rtt tff tfg tfi tfo tfp tfr tft tgf tgg tgi tgo tgp tgr tgt tif tig tii tio tip tir tit to- tof tog toi too top tor tot tpf tpg tpi tpo tpp tpr tpt trf trg tri tro trp trr trt ttf ttg tti tto ttp ttr ttt