-er -ic c-- ccc cce ccf cci cck cco ccr ce- cec cee cef cei cek ceo cer cfc cfe cff cfi cfk cfo cfr ci- cic cie cif cii cik cio cir ckc cki cko co- coc coe cof coi cok coo cor crc cre crf cri crk cro crr ec- ecc ece ecf eci eck eco ecr eec eee eef eek eeo eer ef- efc efe eff efi efo efr eic eie eif eii eik eio eir ekc eke ekf eki eko ekr eo- eoc eoe eof eoi eok eoo eor erc ere erf eri erk ero err fcc fce fcf fci fck fco fcr fec fee fef fei fek feo fer ffc ffe fff ffi ffk ffo ffr fic fie fif fii fik fir fkc fkf fki fkk foc foe fof foi fok foo for frc fre frf fri frk fro frr i-f icc ice icf ici ick ico icr ie- iec iee ief iei iek ier ifc ife iff ifi ifo ifr iic iie iif iii iio iir ikc ike ikf iki ikk iko ikr io- ioc ioe iof ioi ioo ior ir- irc ire irf iri irk iro irr kcc kce kci kck kcr ke- kec kee kef kei kek keo ker kfc kff kfi kfo kic kie kif kii kik kio kir kkc kke kki kkk kkr koc koe kof koi kok koo kor krc krf kri krk kro krr o-i oc- occ ocf oci ock oco ocr oec oee oef oei oeo oer of- ofc ofe off ofi ofo ofr oic oie oif oii oik oio oir okc oke oki okk oko okr oo- ooc oof ooi ook ooo oor or- orc ore orf ori ork oro orr rcc rce rcf rci rco rcr re- rec ree ref rei rek reo rer rfc rfe rff rfi rfk rfo rfr ric rie rif rii rik rio rir rkc rke rkf rkk rko roc roe rof roi rok roo ror rrc rrf rri rrk rrr

cccc cccf ccci ccee ccfc ccff ccfi ccic ccii ccir ccoc ccrc ccre ccrf ccri cec- cece ceci ceco ceec cef- cefc ceke ceor cer- cerc cere cerf ceri cero cfcf cfco cffr cfor cfre cicc cici cico cicr ciee cier cife ciff ciii ciko cikr cior circ cire ciri cirk ciro cirr ckck ckco cker ckfi ckfr ckoc ckoi ckoo ckor ckrc coce cock coco cofc cofe coff cofi coif coir cok- coke coko coof cook cor- corc core corf cori cork coro corr crcc crce crcr cre- crec cree crei creo crfc cric crie crif crik crkc croc croe crok croo cror eccc ecce ecci ecco ecef ecfc ecfr ecko eco- ecrc ecrf ecri ecrr eeee eefe eeke eeoc eerc eero efco efeo effi efic efik efke efor eick eico eiec eiei eier eike eiki eiko eire ekco ekek eker ekfc ekki ekoi eoir eore eori ercc erce erec erei erer erfc eric erie erik erio erke erki eroc eroe eroi eroo errc erre erro f--k fccf fcic fcii fece feck feek feer fefc fefe feff fefi fefo feie feio feir feke feko feof ferc fere ferk fero ferr ffcc ffee ffff ffii ffrr ficc fice fick fico fiec fief fier fifc fife fiff fifi fifo fiii fike fiki fioe fior fire firk foce foci fock foco foer fofo foie foke foki foof fook for- fore fori fork foro forr frcc free frei freo frfc fric frie frik frio froe iccc iccf icci icco iccr icec icee icef icer icke icoc icor icrc icre icrf icrr iecc ieie ieio iere ieri ifco ifer ific ifor ifrf ifri iiie iiii iiio iioi iioo iirc ikee iker ikki ikko ikoo ikri ioci ioee iofc ioii ioio ioke ioko ioof iooi iooo iore iori ircc iree irer irfe iri- iric irie irio irki iroc irrc irre irri k-ci kccc kcci kcck kccr kcec kcee kcei kceo kcfc kcfi kcfo kcic kcie kcif kcii kcir kckc kckf kckk kcko kckr kcoe kcof kcor kcrc kcri kcro kcrr keck keco kecr keef keek keer kefc keff kefr keif keii keik keio keir kekc keke keki keko keok ker- kerc kere kerf keri kerk kero kerr kfcf kfco kfcr kfer kfff kffk kfio kfir kfok kfoo kfor kfrc kfre kfri kfro kfrr kicc kice kick kicr kief kier kife kiff kifr kiic kiii kiik kikc kikf kiki kikk kiko kikr kioc kioe kioi kiok kioo kirc kirf kiri kirk kiro kirr kkci kkck kkco kkcr kkfi kkfr kkic kkik kkkk kkoo kkor kkrc kkre kkrf kkrk kkro kkrr kocf koci kock koei kofc kofe koff kofi kofk kofo koii koir kokc koke kokf koki kokk koko kokr kooc kooi kook kooo koor korc kore korf kori kork koro korr krcc krce krci krco krec kree kref krei krek kreo krfc krfe krff krfo krik krio krkc krke krki krkk krko krkr kroc kroe krof kroi krok kroo kror krrc krre krrf krri krrk krro krrr o-eo occc occi oce ocee ocef ocke ocre ocro ocrr oec- oecc oeec oere ofcr ofek ofer off- offc offe offo offr ofik ofor ofre oici oick oier oiii oike oiko oire oker okic okie okir okko okok okor okre okro oocr ooer ooff oooo oore orce orci orco ore- orec orek oreo orer orfe orff orfi ori- oric orie orif orio orke orko oro- oroe orof orok oror orri orro rccc rcfc rcic recc rece reci reck recr reef reek refe reff refi refr reif reii reik reir reke reki reko reof rere reri rero rfef rffc rfic ricc rice rick rico rief riek rier rife riff riif rike riki rikk rire riri rkkf rocc roce rock roco roer rofc rofe roff rofo roif roik roio roir roke roki rokk roko rokr roof rooi rook roor rorc rore rori rork roro rrfc rrif rrrr

c-cor ccccc cccii ccifc cciii ceci- cecie ceco- cecri ceere cefor ceoce ceoor cerc- cerce cerci cerco cerec cerer ceric cerie cerik cerio cerke cero- ceroc cerre cerro cicek cicer cicke cieck cifer circe