fff ffg ffi ffo ffp ffs fft fgf fgg fgi fgp fgs fgt fif fig fii fip fis fit fof fog foi foo fop fos fot fpg fpi fpo fpp fps fpt fsf fsg fsi fso fsp fss fst ftf ftg fti fto ftp fts ftt g-p gff gfi gfo gfp gfs gft ggg ggi ggo ggp ggs ggt gif gig gii gio gip gis git gof gog goi goo gop gos got gpf gpg gpi gpo gpp gps gpt gsf gsg gsi gso gsp gss gst gtf gtg gti gto gtp gts gtt i-f iff ifg ifi ifo ifp ifs ift igf igg igi igo igp igs igt iif iii iio iip iis iit io- iof iog ioi ioo iop ios iot ipf ipg ipi ipo ipp ips ipt is- isf isg isi iso isp iss ist itf itg iti ito itp its itt o-i of- off ofg ofi ofo ofp ofs oft ogf ogg ogi ogo ogp ogs ogt oif oii oio oip ois oit oo- oof oog ooi ooo oop oos oot op- opf opg opi opo opp ops opt os- osf osg osi oso osp oss ost ot- otf otg oti oto otp ots ott p-p pff pfg pfi pfo pfp pfs pft pgf pgg pgi pgo pgp pgs pgt pif pig pii pio pip pis pit pof pog poi poo pop pos pot ppf ppg ppi ppo ppp pps ppt ps- psf psg psi pso psp pss pst pt- ptf ptg pti pto ptp pts ptt sff sfg sfi sfo sfp sfs sft sgf sgg sgi sgo sgp sgs sgt sif sig sii sio sip sis sit sof sog soi soo sop sos sot spf spg spi spo spp sps spt ss- ssf ssg ssi sso ssp sss sst stf stg sti sto stp sts stt tff tfg tfi tfo tfp tfs tft tgf tgg tgi tgo tgp tgs tgt tif tig tii tio tip tis tit to- tof tog toi too top tos tot tpf tpg tpi tpo tpp tps tpt tsf tsg tsi tso tsp tss tst ttf ttg tti tto ttp tts ttt