-ey c-- c-j ccc cce ccj cck cco ccs ce- cec cee cej cek ceo ces cey cjc cjk cjs ckc cko cks cky co- coc coe coj cok coo cos coy csc cse csj csk cso css csy cyc cye cyk cyo cys ec- ecc ece ecj eck eco ecs eec eee eek eeo ees eey ejc ejo ekc eke eko eks eky eo- eoc eoe eok eoo eos es- esc ese esk eso ess esy eyc eye eyo eys jcc jce jck jco jcs jec jee jej jek jeo jes jey jjc jjj jjk jjs jjy jkk jko jks joc joe joj jok joo jos joy jsc jse jsj jsk jso jss jsy jyj jys kcc kce kck kcs ke- kec kee kek keo kes key kjc kje kjs kkc kke kkk kks kky koc koe kok koo kos koy ksc kse ksk kso kss kyc kye kyo kys oc- occ ocj ock oco ocs oec oee oeo oes oey ojc oje ojo ojs ojy okc oke okj okk oko oks oo- ooc ook ooo oos os- osc ose osj osk oso oss oye oyo oys scc sce scj sck sco scs se- sec see sej sek seo ses sey sjc sje sjj sjk sjs sk- skc ske skj skk sko sks sky soc soe soj sok soo sos soy ss- ssc sse ssj ssk sso sss sy- syc sye syk sys ycc yce yco ycs ycy yec yee yek yeo yes yey ykk yoc yoe yoj yok yoo yos yoy ysc yse ysj ysk yso yss ysy yyc yye yys yyy