cccc cccf ccci ccee ccfc ccff ccfi ccic ccii ccir ccoc ccrc ccre ccrf ccri ccrt cctc cctt cec- cece ceci ceco cect ceec cef- cefc ceke ceor cer- cerc cere cerf ceri cero cert cet- cete ceti ceto cfcf cfco cffr cfit cfor cfre cfrt cftc cfte cftk cftr cicc cici cico cicr cict ciee cier cife ciff ciii ciit ciko cikr cior circ cire ciri cirk ciro cirr cirt cite citf citi cito citt ckck ckco cker ckfi ckfr ckoc ckoi ckoo ckor ckot ckrc coce cock coco coct cofc cofe coff cofi coft coif coir coit cok- coke coko coof cook coot cor- corc core corf cori cork coro corr cort cotc cote coti coto cott crcc crce crcr cre- crec cree crei creo cret crfc cric crie crif crik crit crkc croc croe crok croo cror crot crrt crtc crtf ctcf ctec ctfc ctfo ctic ctor ctot ctrc eccc ecce ecci ecco ecct ecef ecfc ecfr ecit ecko eco- ecot ecrc ecrf ecri ecrr ect- ectc ectf ecto eeee eefe eeke eeoc eerc eero eetc eete efco efeo efet effi efic efik efit efke efor eft- eick eico eiec eiei eier eike eiki eiko eire eitc eiti eito eitr ekco ekek eker eket ekfc ekki ekoi eoir eore eori eotc eoto ercc erce erec erei erer eret erfc erft eric erie erik erio erit erke erki eroc eroe eroi eroo errc erre erro etcc etco etec etee eter etfc etfe etic etik etio etoe etok etre etro ette etti etto f--k fccf fcic fcii fcot fcto fece feck fect feek feer feet fefc fefe feff fefi fefo feie feio feir feit feke feko feof ferc fere ferk fero ferr fert fete feti fetr fett ffcc ffee ffff ffii ffrr fftf ficc fice fick fico fict fiec fief fier fifc fife fiff fifi fifo fift fiii fike fiki fioe fior fire firk fitc fite fiti fitt foce foci fock foco foer fofo foie foke foki foof fook foot for- fore fori fork foro forr fort fote foti foto fott frcc free frei freo fret frfc fric frie frik frio frit froe frot ft-c fter ftfc ftii iccc iccf icci icco iccr icct icec icee icef icer icet icke icoc icor icrc icre icrf icrr icrt iecc ieet ieie ieio iere ieri ietf iett ifco ifer ific ifit ifor ifrf ifri ifto iiie iiii iiio iiit iioi iioo iirc iitr iitt ikee iker ikki ikko ikoo ikri ioci ioee iofc ioii ioio ioit ioke ioko ioof iooi iooo iore iori iote iotf ioto ircc iree irer irfe iri- iric irie irio irki iroc irrc irre irri irte irtf irti itec itek iter itet itic itie itif itko itof itoi itoo itor itrf itri ittf itto k-ci kccc kcci kcck kccr kcct kcec kcee kcei kceo kcet kcfc kcfi kcfo kcft kcic kcie kcif kcii kcir kcit kckc kckf kckk kcko kckr kcoe kcof kcor kcot kcrc kcri kcro kcrr kcrt kctc kcte kcti kcto keck keco kecr keef keek keer keet kefc keff kefr keft keif keii keik keio keir kekc keke keki keko keok ker- kerc kere kerf keri kerk kero kerr kert ket- ketc kete ketf keti ketk keto ketr kett kfcf kfco kfcr kfer kfff kffk kfio kfir kfit kfok kfoo kfor kfrc kfre kfri kfro kfrr kftc kfte kfti kftk kftt kicc kice kick kicr kict kief kier kife kiff kifr kift kiic kiii kiik kiit kikc kikf kiki kikk kiko kikr kikt kioc kioe kioi kiok kioo kiot kirc kirf kiri kirk kiro kirr kirt kitc kite kiti kito kitr kitt kkci kkck kkco kkcr kkct kkfi kkfr kkft kkic kkik kkit kkkk kkoo kkor kkot kkrc kkre kkrf kkrk kkro kkrr kkrt kktc kktk kocf koci kock koct koei kofc kofe koff kofi kofk kofo koft koii koir koit kokc koke kokf koki kokk koko kokr kooc kooi kook kooo koor koot korc kore korf kori kork koro korr kort kotc kote koti kotk koto kotr kott krcc krce krci krco krec kree kref krei krek kreo kret krfc krfe krff krfo krft krik krio krit krkc krke krki krkk krko krkr kroc kroe krof kroi krok kroo kror krrc krre krrf krri krrk krro krrr krrt krtc krti krtk krto krtr ktcc ktce ktck ktco ktcr ktec ktee ktek ktfc ktfi ktfo ktic ktie ktik ktkc ktke ktkk ktko ktkr ktkt ktoc ktoe ktok ktoo ktor ktot ktrc ktre ktrf ktri ktrk ktro ktrr ktrt kttc kttf ktti kttk ktto kttr kttt o-eo occc occi occt oce ocee ocef ocet ocke ocre ocro ocrr oct- octe octi octo oec- oecc oeec oere oeti ofcr ofek ofer off- offc offe offo offr ofik ofit ofor ofre oici oick oier oiii oike oiko oire oirt oitc oiti oker oket okic okie okir okko okok okor okot okre okro okto oocr ooer ooff oooo oore oort orce orci orco ore- orec orek oreo orer orfe orff orfi ori- oric orie orif orio orit orke orko oro- oroe orof orok oror orot orri orro ortc orte orto otee oter otfc otic otif otit oto- otoe otof otok otoo otor otre otro otte otti otto rccc rcet rcfc rcic rctc rcti recc rece reci reck recr rect reef reek reet refe reff refi refr reft reif reii reik reir reit reke reki reko rekt reof reot rere reri rero rert rete reti reto retr rett rfef rffc rfic rftc ricc rice rick rico rict rief riek rier riet rife riff rift riif rike riki rikk riot rire riri rite riti rito ritt rkkf rocc roce rock roco roer roet rofc rofe roff rofo roif roik roio roir roit roke roki rokk roko rokr roof rooi rook roor root rorc rore rori rork roro rort rotc rote roti rotk roto rotr rott rrfc rrif rrrr rtcc rtce rtee rtei rtfc tccc tcfc tctc teck teco tecr tect teec teef teek teer teet tefc teff tefi teft teic teie teir teke teok teor ter- terc tere terf teri