-th fff ffg ffh ffi ffs fft fgf fgg fgh fgi fgs fgt fhf fhg fhh fhi fhs fif fig fih fii fis fit fsf fsg fsh fsi fss fst ftf ftg fth fti fts ftt gff gfh gfi gfs gft ggg ggh ggi ggs ggt ghg ghh ghi ghs ght gif gig gih gii gis git gsf gsg gsi gss gst gtf gtg gth gti gts gtt h-i hff hfg hfh hfi hfs hft hgf hgg hgh hgi hgs hgt hhf hhg hhh hhi hhs hht hif hig hih hii his hit hsf hsg hsh hsi hss hst htf htg hth hti hts htt i-f iff ifg ifi ifs ift igf igg igh igi igs igt ihf ihg ihh ihi ihs iht iif iih iii iis iit is- isf isg ish isi iss ist itf itg ith iti its itt sff sfg sfh sfi sfs sft sgf sgg sgh sgi sgs sgt sh- shf shg shh shi shs sht sif sig sih sii sis sit ss- ssf ssg ssh ssi sss sst stf stg sth sti sts stt tff tfg tfh tfi tfs tft tgf tgg tgh tgi tgs tgt th- thf thg thh thi ths tht tif tig tih tii tis tit tsf tsg tsh tsi tss tst ttf ttg tth tti tts ttt