fff ffg ffi ffm ffo ffr ffs fft fgf fgg fgi fgm fgr fgs fgt fif fig fii fim fir fis fit fmf fmg fmi fmm fmo fmr fms fmt fof fog foi fom foo for fos fot frf frg fri frm fro frr frs frt fsf fsg fsi fsm fso fsr fss fst ftf ftg fti ftm fto ftr fts ftt gff gfi gfm gfo gfr gfs gft ggg ggi ggm ggo ggr ggs ggt gif gig gii gim gio gir gis git gmf gmg gmi gmm gmo gmr gms gmt gof gog goi gom goo gor gos got grf grg gri grm gro grr grs grt gsf gsg gsi gsm gso gsr gss gst gtf gtg gti gtm gto gtr gts gtt i-f iff ifg ifi ifm ifo ifr ifs ift igf igg igi igm igo igr igs igt iif iii iim iio iir iis iit im- imf img imi imm imo ims imt io- iof iog ioi iom ioo ior ios iot ir- irf irg iri irm iro irr irs irt is- isf isg isi ism iso isr iss ist itf itg iti itm ito its itt m-f m-o m-r mff mfg mfi mfm mfo mfr mfs mft mgf mgi mgm mgo mgr mgs mgt mi- mif mig mii mim mio mir mis mit mmf mmg mmi mmm mmo mmr mms mmt mof mog moi mom moo mor mos mot mrf mrg mri mrm mro mrr mrs mrt msf msg msi msm mso msr mss mst mtf mtg mti mtm mto mtr mts mtt o-i of- off ofg ofi ofm ofo ofr ofs oft ogf ogg ogi ogo ogs ogt oif oii oim oio oir ois oit om- omf omg omi omm omo omr oms omt oo- oof oog ooi oom ooo oor oos oot or- orf org ori orm oro orr ors ort os- osf osg osi osm oso osr oss ost ot- otf otg oti otm oto otr ots ott rff rfg rfi rfm rfo rfr rfs rft rgf rgg rgi rgo rgr rgs rgt rif rig rii rim rio rir ris rit rmf rmg rmi rmm rmo rmr rms rmt rof rog roi rom roo ror ros rot rrf rrg rri rrm rrr rrs rrt rsf rsg rsi rsm rso rsr rss rst rtf rtg rti rtm rto rtr rts rtt sff sfg sfi sfm sfo sfr sfs sft sgf sgg sgi sgm sgo sgr sgs sgt sif sig sii sim sio sir sis sit smf smg smi smm smo smr sms smt sof sog soi som soo sor sos sot sr- srf srg sri srm sro srr srs srt ss- ssf ssg ssi ssm sso ssr sss sst stf stg sti stm sto str sts stt tff tfg tfi tfm tfo tfr tfs tft tgf tgg tgi tgm tgo tgr tgs tgt tif tig tii tim tio tir tis tit tmf tmg tmi tmm tmo tmr tms tmt to- tof tog toi tom too tor tos tot trf trg tri trm tro trr trs trt tsf tsg tsi tsm tso tsr tss tst ttf ttg tti ttm tto ttr tts ttt