c-- ccc ccg cck ccp ccr ccs cgc cgg cgp cgr cgs ckc cks cpc cpg cpk cpp cpr cps crc crg crk crp crr crs csc csg csk csp csr css g-p gcc gcg gck gcp gcr gcs ggc ggg ggp ggr ggs gkp gks gpc gpg gpk gpp gpr gps grc grg grk grp grr grs gsc gsg gsk gsp gsr gss kcc kcg kck kcp kcr kcs kgc kgp kgs kkc kkk kkp kkr kks kpc kpk kpp kpr kps krc krg krk krp krr krs ksc ksg ksk ksp ksr kss p-p pcc pcg pck pcp pcr pcs pgc pgg pgk pgp pgr pgs pkc pkg pkp pkr pks ppc ppg ppk ppp ppr pps prc prg prk prp prr prs ps- psc psg psk psp psr pss rcc rcg rcp rcr rcs rgc rgg rgk rgp rgr rgs rkc rkg rkk rkp rks rpc rpg rpk rpp rpr rps rrc rrg rrk rrp rrr rrs rsc rsg rsk rsp rsr rss scc scg sck scp scr scs sgc sgg sgk sgp sgr sgs sk- skc skg skk skp skr sks spc spg spk spp spr sps sr- src srg srk srp srr srs ss- ssc ssg ssk ssp ssr sss