c-- ccc ccg ccn cco ccs cct cgc cgg cgn cgo cgs cgt cgy cn- cnc cng cnn cno cns cnt cny co- coc cog con coo cos cot coy csc csg csn cso css cst csy ctc ctg ctn cto cts ctt cty cyc cyg cyn cyo cys cyt gcc gcg gcn gco gcs gct ggc ggg ggn ggo ggs ggt gnc gnn gno gns gnt goc gog gon goo gos got goy gsc gsg gsn gso gss gst gtc gtg gtn gto gts gtt gty gy- gyn gyo gys ncc ncg ncn nco ncs nct ngc ngg ngn ngo ngs ngt nnc nng nnn nno nns nnt no- noc nog non noo nos not noy nsc nsg nsn nso nss nst nsy ntc ntg ntn nto nts ntt nyc nyg nyn nyo nys nyt nyy oc- occ ocg ocn oco ocs oct ogc ogg ogn ogo ogs ogt ogy on- onc ong onn ono ons ont ony oo- ooc oog oon ooo oos oot os- osc osg osn oso oss ost ot- otc otg otn oto ots ott oyo oys scc scg scn sco scs sct sgc sgg sgn sgo sgs sgt snc sng snn sno sns snt sny soc sog son soo sos sot soy ss- ssc ssg ssn sso sss sst stc stg stn sto sts stt sty sy- syc syg syn sys syt tcc tcg tcn tco tcs tct tgc tgg tgn tgo tgs tgt tgy tnc tng tnn tno tns tnt to- toc tog ton too tos tot toy tsc tsg tsn tso tss tst tsy ttc ttg ttn tto tts ttt tty tyc tyg tyn tyo tys tyt ycc yco ycs ycy ygc ygo yng ynn yns yny yoc yog yon yoo yos yot yoy ysc ysg yso yss yst ysy ytc ytn yto yts ytt yyc yyg yys yyt yyy