-ey c-- ccc cce cck ccn cco ccs ce- cec cee cek cen ceo ces cey ckc cko cks cky cn- cnc cne cnn cno cns cny co- coc coe cok con coo cos coy csc cse csk csn cso css csy cyc cye cyk cyn cyo cys ec- ecc ece eck ecn eco ecs eec eee eek een eeo ees eey ekc eke eko eks eky en- enc ene enk enn eno ens eny eo- eoc eoe eok eon eoo eos es- esc ese esk esn eso ess esy eyc eye eyn eyo eys kcc kce kck kcn kcs ke- kec kee kek ken keo kes key kkc kke kkk kkn kks kky kn- knc kne knk knn kno koc koe kok kon koo kos koy ksc kse ksk ksn kso kss kyc kye kyn kyo kys ncc nce nck ncn nco ncs ne- nec nee nek nen neo nes ney nkc nke nkk nkn nko nks nky nnc nne nnk nnn nno nns no- noc noe nok non noo nos noy nsc nse nsk nsn nso nss nsy nyc nye nyk nyn nyo nys nyy oc- occ ock ocn oco ocs oec oee oen oeo oes oey okc oke okk oko oks on- onc one onk onn ono ons ony oo- ooc ook oon ooo oos os- osc ose osk osn oso oss oye oyo oys scc sce sck scn sco scs se- sec see sek sen seo ses sey sk- skc ske skk sko sks sky snc sne snk snn sno sns sny soc soe sok son soo sos soy ss- ssc sse ssk ssn sso sss sy- syc sye syk syn sys ycc yce yco ycs ycy yec yee yek yen yeo yes yey ykk ykn yne ynk ynn yns yny yoc yoe yok yon yoo yos yoy ysc yse ysk yso yss ysy yyc yye yys yyy