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 ceor cer- cerc cere cerf ceri cero cert cet- cete ceti ceto cfcf cfco cffr cfit cfor cfre cfrt cftc cfte cftr cicc cici cico cicr cict ciee cier cife ciff ciii ciit cior circ cire ciri ciro cirr cirt cite citf citi cito citt coce coco coct cofc cofe coff cofi coft coif coir coit coof coot cor- corc core corf cori coro corr cort cotc cote coti coto cott crcc crce crcr cre- crec cree crei creo cret crfc cric crie crif crit croc croe croo cror crot crrt crtc crtf ctcf ctec ctfc ctfo ctic ctor ctot ctrc eccc ecce ecci ecco ecct ecef ecfc ecfr ecit eco- ecot ecrc ecrf ecri ecrr ect- ectc ectf ecto eeee eefe eeoc eerc eero eetc eete efco efeo efet effi efic efit efor eft- eico eiec eiei eier eire eitc eiti eito eitr eoir eore eori eotc eoto ercc erce erec erei erer eret erfc erft eric erie erio erit eroc eroe eroi eroo errc erre erro etcc etco etec etee eter etfc etfe etic etio etoe etre etro ette etti etto fccf fcic fcii fcot fcto fece fect feer feet fefc fefe feff fefi fefo feie feio feir feit feof ferc fere fero ferr fert fete feti fetr fett ffcc ffee ffff ffii ffrr fftf ficc fice fico fict fiec fief fier fifc fife fiff fifi fifo fift fiii fioe fior fire fitc fite fiti fitt foce foci foco foer fofo foie foof foot for- fore fori foro forr fort fote foti foto fott frcc free frei freo fret frfc fric frie frio frit froe frot ft-c fter ftfc ftii iccc iccf icci icco iccr icct icec icee icef icer icet 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 ioci ioee iofc ioii ioio ioit ioof iooi iooo iore iori iote iotf ioto ircc iree irer irfe iri- iric irie irio iroc irrc irre irri irte irtf irti itec iter itet itic itie itif itof itoi itoo itor itrf itri ittf itto o-eo occc occi occt oce ocee ocef ocet ocre ocro ocrr oct- octe octi octo oec- oecc oeec oere oeti ofcr ofer off- offc offe offo offr ofit ofor ofre oici oier oiii oire oirt oitc oiti oocr ooer ooff oooo oore oort orce orci orco ore- orec oreo orer orfe orff orfi ori- oric orie orif orio orit oro- oroe orof oror orot orri orro ortc orte orto otee oter otfc otic otif otit oto- otoe otof otoo otor otre otro otte otti otto rccc rcet rcfc rcic rctc rcti recc rece reci recr rect reef reet refe reff refi refr reft reif reii reir reit reof reot rere reri rero rert rete reti reto retr rett rfef rffc rfic rftc ricc rice rico rict rief rier riet rife riff rift riif riot rire riri rite riti rito ritt rocc roce roco roer roet rofc rofe roff rofo roif roio roir roit roof rooi roor root rorc rore rori roro rort rotc rote roti roto rotr rott rrfc rrif rrrr rtcc rtce rtee rtei rtfc tccc tcfc tctc teco tecr tect teec teef teer teet tefc teff tefi teft teic teie teir teor ter- terc tere terf teri tero terr tete teti teto tetr tett tfec tfot tftc ticc tice tico tie- tiee tief tiei tieo tier tiet tiff tifo tift tiit tire tiri tiro tirr titc tite titi tito titt toce toci toco toee toei toer toet toff tofi tofo toft toie toit toof toor toot torc tore torf tori toro torr tort totc tote toti toto totr tott trcc tre- trec tree tref trei treo tret trfc trfr tri- tric trie trif trio trit troc troe troi troo trot trtc trte trtr tteo tter ttfc ttff ttoe tttt