cccc cccf ccci cccp cccs ccee ccfc ccff ccfi ccic ccii ccip ccir ccis ccpe ccpp ccpr ccps ccrc ccre ccrf ccri ccrp ccrs ccsf ccsi ccsp ccss cec- cece ceci cecp cecs ceec cees cef- cefc ceip ceke cepc cepe cepp cepr ceps cer- cerc cere cerf ceri cerp cers cesc cese cesi cesp cesr cess cfcf cfcs cffr cfpr cfps cfre cfrp cfse cfsi cicc cici cicr cics ciee cier cies cife ciff cifs ciii ciis cikr cipf cipp cips circ cire ciri cirk cirr cirs cis- cisc cise cisk cisp cisr ciss ckck ckcs cker ckfi ckfr ckpc ckpr ckrc cpce cpcs cpep cper cpff cpic cpif cpps cpre cpri cprs cpsc cpsk cpsr crcc crce crcr cre- crec cree crei crep cres crfc crfs cric crie crif crik crip cris crkc crkp crpc crps crsp crss cscc csce cscf csci cscr cscs csec csee csep cser csfc csfr csik csir csis csks cspc cspe cspi csps csrc csrs csse cssr eccc ecce ecci ecef eces ecfc ecfr ecfs ecip ecis ecks ecpp ecrc ecrf ecri ecrr ecsc ecse ecsp ecss eecs eeee eees eefe eeke eeks eeps eerc eers eese eesi eesk efes effi effs efic efik efke efsi eick eics eiec eiei eier eies eifs eike eiki eiks eipr eire eirs eise eisk eiss ekek eker ekes ekfc ekis ekki ekpe eksi epcc epci epec epee eper epes epfc epi- epic epie epik epip epis eppc eppp epps eprp eprs epsc epsf epsi epsp epss ercc erce ercp erec erei erer eres erfc erfs eric erie erik eris erke erki erks erpe erps errc erre errs erse ersi esce esci escr escs esee esek eser eses esfp esfs esie esik esis eske esks espc espe espi espp esps esri esse essi essp f--k fccf fccp fces fcic fcii fcps fcsc fece feck feek feer fees fefc fefe feff fefi feie feir feis feke fepc feps ferc fere ferk ferr fers fese fess ffcc ffee ffff ffii ffps ffrr ffss ficc fice fick fics fiec fief fier fies fifc fife fiff fifi fiii fike fiki fipp fips fire firk firs fisc fise fisi fisk fiss fp-c fpcc fprf frcc frcp free frei frep fres frfc fric frie frik frip fris frps frsc fscc fsck fsec fsfi fspc fspf fssc fssf fssp iccc iccf icci iccp iccr iccs icec icee icef icer ices icis icke icks icpc icps icrc icre icrf icrr icrs icsc icse icsi icsp icsr icss iecc ieie iere ieri iers iesc iesi iesr ifcp ifer ifes ific ifis ifps ifrf ifri ifsc ifsp iies iiie iiii iiis iipf iirc iirs iisc iisi iisp iisr ikee iker ikes ikki ikri ipcc ipce ipcs ipec ipek iper ipes ipfc ipie ipkf ippc ippf ippr ipri ipsc ipse ipsi ipsp ipss ircc ircs iree irer ires irfe iri- iric irie irip iris irki irks irpc irpe irps irrc irre irri irrs irse irsf irsp iscc isci iscp iscr iscs isec isee isep iser ises isfc isfp isic isie isis iskf ispc ispe ispf ispr isps isri isrp issc isse issf issi issp issr isss k-ci kccc kcci kcck kccr kcec kcee kcei kcep kcfc kcfi kcfp kcic kcie kcif kcii kcir kcis kckc kckf kckk kckr kcpc kcpi kcpr kcps kcrc kcri kcrp kcrr kcrs kcsc kcse kcsf kcsi kcsp kcsr kcss keck kecr keef keek keep keer kees kefc keff kefr kefs keif keii keik keir keis kekc keke keki keks kep- kepc kepe kepi keps ker- kerc kere kerf keri kerk kerp kerr kers kesc kesi kesk kesp kesr kess kfcf kfcr kfcs kfer kfff kffk kfir kfis kfpr kfrc kfre kfri kfrp kfrr kfrs kfse kfsi kfsk kfsp kfsr kicc kice kick kicp kicr kics kief kier kies kife kiff kifr kifs kiic kiii kiik kiip kiis kikc kikf kiki kikk kikr kip- kipe kipi kipp kipr kips kirc kirf kiri kirk kirp kirr kirs kisc kise kisf kisi kisk kisr kiss kkci kkck kkcr kkcs kkfi kkfr kkfs kkic kkik kkkk kkpc kkpk kkps kkrc kkre kkrf kkrk kkrr kkrs kkse kksf kksi kksp kksr kkss kpcc kpcr kpcs kpek kper kpfc kpfk kpfr kpif kpir kpke kpkk kpkr kppc kppk kppp kppr kprc kpre kprf kpri kprk kprp kprr kprs kpsc kpsf kpsi kpsp krcc krce krci krcs krec kree kref krei krek kres krfc krfe krff krfp krfs krik kris krkc krke krki krkk krkr krks krpi krpr krps krrc krre krrf krri krrk krrr krrs krsc krse krsf krsk krsr krss ksce ksci ksck kscr kscs ksec ksee ksei ksek ksep kser ksfc ksfe ksfi ksfr ksif ksii ksik ksip ksir ksis kske kskf kskk kskr ksks kspc kspe kspi kspk kspr ksps ksrf ksrp ksrr ksrs ksse kssi kssr ksss pccc pcce pccs pcep pcer pcfc pcip pcks pcpp pcps pcrc pcre pcrf pcse pece peci peck pecr pecs peec peek peep peer pees pefc peff pefs peip peir peis peke peki pekk pepe pepi peps per- perc pere perf peri perk perp perr pers pese pesi pess pfce pfcs pfff pffr pfic pfis pfkp pfps picc pice pici pick picr pics piep pier pies piff pifs piip pike piki pikk piks pipe pipi pipp pips pirc pire piri pirk pirr pirs pise pisi pisk piss pkcs ppcc ppci ppcs pper ppic ppie ppif pppp ppps pprc pprf ppsf ppss prcc prcf prcp prcs pre- prec pree pref prek prep pres prfc prfs pri- prie prif prii pris prps prri prrs prsc prse prsi prss psci psec psei psfk psfs psip psis pspi pspp pspr psps psrk psrp pssc psse rccc rccs rcep rcfc rcic rcis rcpi rcps rcsc rcsi rcss recc rece reci reck recp recr recs reef reek reep rees refe reff refi refr refs reif reii reik reir reis reke reki reks repe repi repp repr reps rere reri rers rese resi resp ress rfef rffc rfic ricc rice rick rics rief riek riep rier ries rife riff rifs riif riis rike riki rikk ripe