c-- ccc ccg cco ccr ccu cgc cgg cgo cgr cgu cgy co- coc cog coo cor cou coy crc crg cro crr cru cry cuc cug cuo cur cuu cuy cyc cyg cyo cyr gcc gcg gco gcr gcu ggc ggg ggo ggr ggu goc gog goo gor gou goy grc grg gro grr gru gry gu- guc gug guo gur guu guy gy- gyo gyr oc- occ ocg oco ocr ocu ogc ogg ogo ogy oo- ooc oog ooo oor or- orc org oro orr oru ory ou- ouc ouo our oyo rcc rcg rco rcr rcu rgc rgg rgo rgr roc rog roo ror rou roy rrc rrg rrr rru ruc rug ruo rur ruu ruy ry- ryc ryg ryo ryr ryu ryy ucc ucg uco ucr ucu ugc ugg ugo ugr ugu uoc uog uoo uor ur- urc urg uro urr uru ury uuc uug uur uuu uyc uyo uyu ycc yco ycu ycy ygc ygo yoc yog yoo yor you yoy yrc yrg yro yru yug yuo yur yuu yuy yyc yyg yyu yyy