-ey c-- ccc cce cck ccm ccp ccs ce- cec cee cek cem cep ces cey ckc ckm cks cky cmc cme cmk cmm cmp cms cmy cpc cpe cpk cpm cpp cps csc cse csk csm csp css csy cyc cye cyk cym cyp cys ec- ecc ece eck ecm ecs eec eee eek eem eep ees eey ekc eke ekp eks eky em- emc eme emk emm emp ems ep- epc epe epm epp eps es- esc ese esk esm esp ess esy eyc eye eym eyp eys kcc kce kck kcm kcp kcs ke- kec kee kek kem kep kes key kkc kke kkk kkm kkp kks kky kmc kme kmk kmm kmp kms kpc kpe kpk kpm kpp kps ksc kse ksk ksm ksp kss kyc kye kym kyp kys mc- mcc mce mck mcm mcp mcs mec mee mek mem mep mes mey mkc mke mkk mkm mkp mks mky mmc mme mmk mmm mmp mms mpc mpe mpk mpm mpp mps msc mse msk msm msp mss msy my- myc mye myk mym mys p-p pcc pce pck pcm pcp pcs pec pee pek pem pep pes pey pkc pke pkm pkp pks pky pmc pme pmk pmm pmp pms ppc ppe ppk ppm ppp pps ps- psc pse psk psm psp pss psy py- pyc pye pyk pym pys scc sce sck scm scp scs se- sec see sek sem sep ses sey sk- skc ske skk skm skp sks sky smc sme smk smm smp sms smy spc spe spk spm spp sps spy ss- ssc sse ssk ssm ssp sss sy- syc sye syk sym syp sys ycc yce ycp ycs ycy yec yee yek yem yep yes yey ykk ykm ymc yme ymm yms yps ysc yse ysk ysm ysp yss ysy yyc yye yys yyy