cccc cccf ccci ccee ccfc ccff ccfi ccic ccii ccoc cec- cece ceci ceco ceec cef- cefc ceke cfcf cfco cfcy cfyk cicc cici cico ciee cife ciff ciii ciko ckck ckco ckcy ckey ckfi ckoc ckoi ckoo ckoy coce cock coco cofc cofe coff cofi coif cok- coke coko coky coof cook coyf coyo cyc- cycc cyfe cyfi cyke cyy- cyyc eccc ecce ecci ecco ecef ecfc ecko ecky eco- eeee eefe eeke eeoc efco efeo effi effy efic efik efke eick eico eiec eiei eike eiki eiko ekco ekek ekfc ekki ekoi eyck eyec eyey eyfi eyik eyio eyke f--k fccf fcic fcii fece feck feek fefc fefe feff fefi fefo feie feio feke feko feof ffcc ffee ffff ffii ficc fice fick fico fiec fief fifc fife fiff fifi fifo fiii fike fiki fiky fioe foce foci fock foco fofo foie foke foki foof fook fyce fyeo fyfe fyfi fyke iccc iccf icci icco icec icee icef icey icke icky icoc iecc ieie ieio ifco iffy ific ifyo iiie iiii iiio iioi iioo ikee ikey ikki ikko ikky ikoo ioci ioee iofc ioii ioio ioke ioko ioof iooi iooo k-ci kccc kcci kcck kccy kcec kcee kcei kceo kcey kcfc kcfi kcfo kcfy kcic kcie kcif kcii kckc kckf kckk kcko kcky kcoe kcof kcye kcyk kcyy keck keco keef keek kefc keff keif keii keik keio kekc keke keki keko keok keye keyf keyy kfcf kfco kfcy kfff kffk kfio kfok kfoo kfoy kfyi kfyo kicc kice kick kicy kief kife kiff kiic kiii kiik kikc kikf kiki kikk kiko kioc kioe kioi kiok kioo kiyi kiyk kkci kkck kkco kkcy kkfi kkic kkik kkkk kkoo kkoy kkyc kkyy kocf koci kock koei kofc kofe koff kofi kofk kofo kofy koii kokc koke kokf koki kokk koko koky kooc kooi kook kooo koye koyf koyo koyy kycc kyck kyee kyfi kykc kyke kykk kyky kyok kyoo kyoy kyyi kyyk kyyo kyyy o-eo occc occi oce ocee ocef ocke oec- oecc oeec oeye oeyo ofek off- offc offe offo offy ofik oici oick oiii oike oiko okey okic okie okko okok okyo ooff oofy ooky oooo oyce oyee oyke yccc ycee ycie yeck yeek yefe yeff yeie yeii yeke yeki yeof yeye yeyi yeyo yiff yike ykey ykko yock yoff yoik yoke yoki yoko yoky yoof yook yoye yoyo yyfe yyff yyyy