-ey c-- ccc cce ccn cco ce- cec cee cen ceo cey cn- cnc cne cnn cno cny co- coc coe con coo coy cyc cye cyn cyo ec- ecc ece ecn eco eec eee een eeo eey en- enc ene enn eno eny eo- eoc eoe eon eoo eyc eye eyn eyo ncc nce ncn nco ne- nec nee nen neo ney nnc nne nnn nno no- noc noe non noo noy nyc nye nyn nyo nyy oc- occ ocn oco oec oee oen oeo oey on- onc one onn ono ony oo- ooc oon ooo oye oyo ycc yce yco ycy yec yee yen yeo yey yne ynn yny yoc yoe yon yoo yoy yyc yye yyy