-er -ey c-- ccc cce ccf ccn cco ccr ce- cec cee cef cen ceo cer cey cfc cfe cff cfn cfo cfr cn- cnc cne cnf cnn cno cnr cny co- coc coe cof con coo cor coy crc cre crf crn cro crr cry cyc cye cyf cyn cyo cyr ec- ecc ece ecf ecn eco ecr eec eee eef een eeo eer eey ef- efc efe eff efo efr en- enc ene enf enn eno enr eny eo- eoc eoe eof eon eoo eor erc ere erf ern ero err ery eyc eye eyn eyo eyr fcc fce fcf fcn fco fcr fcy fec fee fef fen feo fer fey ffc ffe fff ffn ffo ffr ffy fnc fne fnf fnn fnr foc foe fof fon foo for foy frc fre frf frn fro frr fry fy- fyc fye fyn fyo ncc nce ncf ncn nco ncr ne- nec nee nef nen neo ner ney nfc nfe nff nfn nfo nfr nnc nne nnf nnn nno no- noc noe nof non noo nor noy nrc nre nrf nrn nro nrr nry nyc nye nyf nyn nyo nyy oc- occ ocf ocn oco ocr oec oee oef oen oeo oer oey of- ofc ofe off ofn ofo ofr on- onc one onf onn ono onr ony oo- ooc oof oon ooo oor or- orc ore orf orn oro orr ory oye oyo rcc rce rcf rcn rco rcr re- rec ree ref ren reo rer rey rfc rfe rff rfn rfo rfr rnc rnn rno rnr rny roc roe rof ron roo ror roy rrc rrf rrn rrr ry- ryc rye ryf ryn ryo ryr ryy ycc yce ycf yco ycy yec yee yef yen yeo yer yey yfc yfe yff yfr yne ynn yny yoc yoe yof yon yoo yor yoy yrc yre yrf yrn yro yyc yye yyf yyy