cccc ccci cccp ccee ccic ccii ccip ccoc ccpe ccpp cec- cece ceci ceco cecp ceec ceip ceke ceop cepc cepe cepo cepp cicc cici cico ciee ciii ciko cipo cipp ckck ckco ckoc ckoi ckoo ckpc coce cock coco cocp coep coip cok- coke coko cook coop cope copi copo copp cpce cpep cpic cpio eccc ecce ecci ecco ecip ecko eco- ecop ecpp eeee eeke eeoc eick eico eiec eiei eike eiki eiko eipo ekco ekek ekki ekoi ekpe ekpo epcc epci epec epee epi- epic epie epik epip epoc eppc eppo eppp iccc icci icco iccp icec icee icke icoc icpc icpo iecc ieie ieio iiie iiii iiio iioi iioo iiop ikee ikki ikko ikoo ioci iocp ioee ioii ioio ioke ioko iooi iooo ipcc ipce ipec ipek ipie ipko ipoe ipop ippc ippo k-ci kccc kcci kcck kcec kcee kcei kceo kcep kcic kcie kcii kckc kckk kcko kcoe kcpc kcpi kcpo keck keco keek keep keii keik keio kekc keke keki keko keok kep- kepc kepe kepi kicc kice kick kicp kiic kiii kiik kiip kikc kiki kikk kiko kioc kioe kioi kiok kioo kip- kipe kipi kipo kipp kkci kkck kkco kkic kkik kkkk kkoo kkpc kkpk koci kock kocp koei koii kokc koke koki kokk koko kokp kooc kooi kook kooo koop kope kopi kopp kpcc kpek kpke kpkk kpoc kpoe kpok kpoo kpop kppc kppk kppo kppp o-eo occc occi oce ocee ocke ocpp oec- oecc oeec oici oick oiii oike oiko oipc okic okie okko okok okpe okpo oooo opec opei opep opic opie opii opio opo- oppi oppo pccc pcce pcep pcip pcoe pcpp pece peci peck peco peec peek peep peio peip peke peki pekk peko pepe pepi pepo picc pice pici pick pico piep piip pike piki pikk piko pipe pipi pipo pipp poce pock poco poik poio poke poko pook poop pop- popc pope popi popo popp ppcc ppci ppic ppie pppo pppp