c-- ccc ccg ccp ccr ccs cct cgc cgg cgp cgr cgs cgt cgy cpc cpg cpp cpr cps cpt crc crg crp crr crs crt cry csc csg csp csr css cst csy ctc ctg ctp ctr cts ctt cty cyc cyg cyp cyr cys cyt g-p gcc gcg gcp gcr gcs gct ggc ggg ggp ggr ggs ggt gpc gpg gpp gpr gps gpt grc grg grp grr grs grt gry gsc gsg gsp gsr gss gst gtc gtg gtp gtr gts gtt gty gy- gyp gyr gys p-p pcc pcg pcp pcr pcs pct pgc pgg pgp pgr pgs pgt pgy ppc ppg ppp ppr pps ppt prc prg prp prr prs prt pry ps- psc psg psp psr pss pst psy pt- ptc ptg ptp ptr pts ptt pty py- pyc pyg pyr pys pyt rcc rcg rcp rcr rcs rct rgc rgg rgp rgr rgs rgt rpc rpg rpp rpr rps rpt rrc rrg rrp rrr rrs rrt rsc rsg rsp rsr rss rst rtc rtg rtp rtr rts rtt rty ry- ryc ryg ryr rys ryy scc scg scp scr scs sct sgc sgg sgp sgr sgs sgt spc spg spp spr sps spt spy sr- src srg srp srr srs srt sry ss- ssc ssg ssp ssr sss sst stc stg stp str sts stt sty sy- syc syg syp syr sys syt tcc tcg tcp tcr tcs tct tgc tgg tgp tgr tgs tgt tgy tpc tpg tpp tpr tps tpt trc trg trp trr trs trt try tsc tsg tsp tsr tss tst tsy ttc ttg ttp ttr tts ttt tty tyc tyg typ tyr tys tyt ycc ycp ycs ycy ygc ypg yps yrc yrg yrp yrs yrt ysc ysg ysp ysr yss yst ysy ytc ytp ytr yts ytt yyc yyg yys yyt yyy