-ey -ic c-- ccc cce ccf cci cck cco ce- cec cee cef cei cek ceo cey cfc cfe cff cfi cfk cfo ci- cic cie cif cii cik cio ckc cki cko cky co- coc coe cof coi cok coo coy cyc cye cyf cyk cyo ec- ecc ece ecf eci eck eco eec eee eef eek eeo eey ef- efc efe eff efi efo eic eie eif eii eik eio ekc eke ekf eki eko eky eo- eoc eoe eof eoi eok eoo eyc eye eyo fcc fce fcf fci fck fco fcy fec fee fef fei fek feo fey ffc ffe fff ffi ffk ffo ffy fic fie fif fii fik fkc fkf fki fkk foc foe fof foi fok foo foy fy- fyc fye fyi fyk fyo i-f icc ice icf ici ick ico icy ie- iec iee ief iei iek iey ifc ife iff ifi ifo ify iic iie iif iii iio ikc ike ikf iki ikk iko io- ioc ioe iof ioi ioo iyc iye iyo iyy kcc kce kci kck ke- kec kee kef kei kek keo key kfc kff kfi kfo kic kie kif kii kik kio kkc kke kki kkk kky koc koe kof koi kok koo koy kyc kye kyo o-i oc- occ ocf oci ock oco oec oee oef oei oeo oey of- ofc ofe off ofi ofo oic oie oif oii oik oio okc oke oki okk oko oo- ooc oof ooi ook ooo oye oyi oyo ycc yce ycf yci yco ycy yec yee yef yei yek yeo yey yfc yfe yff yie yif yii yio yki ykk yoc yoe yof yoi yok yoo yoy yyc yye yyf yyy