-ey c-- ccc cce ccg cco ccx ce- cec cee ceg ceo cex cey cgc cge cgg cgo cgy co- coc coe cog coo cox coy cxc cxo cxx cyc cye cyg cyo ec- ecc ece ecg eco ecx eec eee eeg eeo eex eey egc ege egg ego egx egy eo- eoc eoe eog eoo ex- exc exe exo exx exy eyc eye eyo gcc gce gcg gco ge- gec gee geg geo gex gey ggc ggg ggo goc goe gog goo gox goy gy- gye gyo oc- occ ocg oco ocx oec oee oeg oeo oex oey ogc oge ogg ogo ogx ogy oo- ooc oog ooo oox ox- oxc oxo oxx oxy oye oyo xcx xee xeg xex xge xoc xog xoo xox xxo xxx xxy xyy ycc yce yco ycy yec yee yeg yeo yex yey ygc ygo yoc yoe yog yoo yox yoy yxe yxy yyc yye yyg yyy