-ey c-- ccc cce cck ccn cco ce- cec cee cek cen ceo cey ckc cko cky cn- cnc cne cnn cno cny co- coc coe cok con coo coy cyc cye cyk cyn cyo ec- ecc ece eck ecn eco eec eee eek een eeo eey ekc eke eko eky en- enc ene enk enn eno eny eo- eoc eoe eok eon eoo eyc eye eyn eyo kcc kce kck kcn ke- kec kee kek ken keo key kkc kke kkk kkn kky kn- knc kne knk knn kno koc koe kok kon koo koy kyc kye kyn kyo ncc nce nck ncn nco ne- nec nee nek nen neo ney nkc nke nkk nkn nko nky nnc nne nnk nnn nno no- noc noe nok non noo noy nyc nye nyk nyn nyo nyy oc- occ ock ocn oco oec oee oen oeo oey okc oke okk oko on- onc one onk onn ono ony oo- ooc ook oon ooo oye oyo ycc yce yco ycy yec yee yek yen yeo yey ykk ykn yne ynk ynn yny yoc yoe yok yon yoo yoy yyc yye yyy