c-- ccc ccd ccg cco ccs cdc cdd cdg cdo cds cdy cgc cgd cgg cgo cgs cgy co- coc cod cog coo cos coy csc csd csg cso css csy cyc cyd cyg cyo cys dcc dcd dcg dco dcs ddc ddd ddg ddo dds ddy dgc dgd dgg dgs doc dod dog doo dos doy dsc dsd dsg dso dss dsy dy- dyc dyd dyo dys dyy g-d gcc gcd gcg gco gcs gdc gdd gdo gds ggc ggd ggg ggo ggs goc god gog goo gos goy gsc gsd gsg gso gss gy- gyd gyo gys oc- occ ocd ocg oco ocs odc odd odg odo ods ogc ogd ogg ogo ogs ogy oo- ooc ood oog ooo oos os- osc osd osg oso oss oyd oyo oys scc scd scg sco scs sdc sdd sdg sdo sds sdy sgc sgd sgg sgo sgs soc sod sog soo sos soy ss- ssc ssd ssg sso sss sy- syc syd syg sys ycc ycd yco ycs ycy ydg ydo yds ydy ygc ygo yoc yod yog yoo yos yoy ysc ysg yso yss ysy yyc yyg yys yyy