fff ffg ffi ffo ffp fft fgf fgg fgi fgp fgt fif fig fii fip fit fof fog foi foo fop fot fpg fpi fpo fpp fpt ftf ftg fti fto ftp ftt g-p gff gfi gfo gfp gft ggg ggi ggo ggp ggt gif gig gii gio gip git gof gog goi goo gop got gpf gpg gpi gpo gpp gpt gtf gtg gti gto gtp gtt i-f iff ifg ifi ifo ifp ift igf igg igi igo igp igt iif iii iio iip iit io- iof iog ioi ioo iop iot ipf ipg ipi ipo ipp ipt itf itg iti ito itp itt o-i of- off ofg ofi ofo ofp oft ogf ogg ogi ogo ogp ogt oif oii oio oip oit oo- oof oog ooi ooo oop oot op- opf opg opi opo opp opt ot- otf otg oti oto otp ott p-p pff pfg pfi pfo pfp pft pgf pgg pgi pgo pgp pgt pif pig pii pio pip pit pof pog poi poo pop pot ppf ppg ppi ppo ppp ppt pt- ptf ptg pti pto ptp ptt tff tfg tfi tfo tfp tft tgf tgg tgi tgo tgp tgt tif tig tii tio tip tit to- tof tog toi too top tot tpf tpg tpi tpo tpp tpt ttf ttg tti tto ttp ttt