c-- ccc ccg cco ccr ccs ccu cgc cgg cgo cgr cgs cgu co- coc cog coo cor cos cou crc crg cro crr crs cru csc csg cso csr css csu cuc cug cuo cur cus cuu gcc gcg gco gcr gcs gcu ggc ggg ggo ggr ggs ggu goc gog goo gor gos gou grc grg gro grr grs gru gsc gsg gso gsr gss gsu gu- guc gug guo gur gus guu oc- occ ocg oco ocr ocs ocu ogc ogg ogo ogs oo- ooc oog ooo oor oos or- orc org oro orr ors oru os- osc osg oso osr oss osu ou- ouc ouo our ous rcc rcg rco rcr rcs rcu rgc rgg rgo rgr rgs roc rog roo ror ros rou rrc rrg rrr rrs rru rsc rsg rso rsr rss rsu ruc rug ruo rur rus ruu scc scg sco scr scs scu sgc sgg sgo sgr sgs sgu soc sog soo sor sos sou sr- src srg sro srr srs ss- ssc ssg sso ssr sss ssu suc sug suo sur sus suu ucc ucg uco ucr ucs ucu ugc ugg ugo ugr ugs ugu uoc uog uoo uor uos ur- urc urg uro urr urs uru usc usg uso usr uss usu uuc uug uur uus uuu