c-- ccc ccf ccg ccm cco cct cfc cff cfg cfm cfo cft cgc cgg cgm cgo cgt cgy cmc cmf cmg cmm cmo cmt cmy co- coc cof cog com coo cot coy ctc ctf ctg ctm cto ctt cty cyc cyf cyg cym cyo cyt fcc fcf fcg fcm fco fct fcy ffc fff ffg ffm ffo fft ffy fgc fgf fgg fgm fgt fmc fmf fmg fmm fmo fmt foc fof fog fom foo fot foy ftc ftf ftg ftm fto ftt fty fy- fyc fyo gcc gcf gcg gcm gco gct gfc gff gfm gfo gft gfy ggc ggg ggm ggo ggt gmc gmf gmg gmm gmo gmt gmy goc gof gog gom goo got goy gtc gtf gtg gtm gto gtt gty gy- gyf gym gyo m-f m-o mc- mcc mcf mcg mcm mco mct mfc mff mfg mfm mfo mft mfy mgc mgf mgm mgo mgt mgy mmc mmf mmg mmm mmo mmt moc mof mog mom moo mot moy mtc mtf mtg mtm mto mtt my- myc myf myg mym myo myt oc- occ ocf ocg ocm oco oct of- ofc off ofg ofm ofo oft ogc ogf ogg ogo ogt ogy om- omc omf omg omm omo omt omy oo- ooc oof oog oom ooo oot ot- otc otf otg otm oto ott oyo tcc tcf tcg tcm tco tct tfc tff tfg tfm tfo tft tgc tgf tgg tgm tgo tgt tgy tmc tmf tmg tmm tmo tmt tmy to- toc tof tog tom too tot toy ttc ttf ttg ttm tto ttt tty tyc tyf tyg tym tyo tyt ycc ycf yco ycy yfc yff yfm yft ygc ygm ygo ymc ymg ymm ymo ymt yoc yof yog yom yoo yot yoy ytc ytf ytm yto ytt yyc yyf yyg yyt yyy