c-- ccc ccg ccn ccs cct cgc cgg cgn cgs cgt cn- cnc cng cnn cns cnt csc csg csn css cst ctc ctg ctn cts ctt gcc gcg gcn gcs gct ggc ggg ggn ggs ggt gnc gnn gns gnt gsc gsg gsn gss gst gtc gtg gtn gts gtt ncc ncg ncn ncs nct ngc ngg ngn ngs ngt nnc nng nnn nns nnt nsc nsg nsn nss nst ntc ntg ntn nts ntt scc scg scn scs sct sgc sgg sgn sgs sgt snc sng snn sns snt ss- ssc ssg ssn sss sst stc stg stn sts stt tcc tcg tcn tcs tct tgc tgg tgn tgs tgt tnc tng tnn tns tnt tsc tsg tsn tss tst ttc ttg ttn tts ttt