c-- ccc ccd ccg cco cdc cdd cdg cdo cdy cgc cgd cgg cgo cgy co- coc cod cog coo coy cyc cyd cyg cyo dcc dcd dcg dco ddc ddd ddg ddo ddy dgc dgd dgg doc dod dog doo doy dy- dyc dyd dyo dyy g-d gcc gcd gcg gco gdc gdd gdo ggc ggd ggg ggo goc god gog goo goy gy- gyd gyo oc- occ ocd ocg oco odc odd odg odo ogc ogd ogg ogo ogy oo- ooc ood oog ooo oyd oyo ycc ycd yco ycy ydg ydo ydy ygc ygo yoc yod yog yoo yoy yyc yyg yyy