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 cepc cepe cepp cepr ceps cer- cerc cere cerf ceri cerp cers cery cesc cese cesi cesp cesr cess ceys cfcf cfcs cfcy cffr cfpr cfps cfre cfrp cfry cfse cfsi cicc cici cicr cics ciee cier cies cife ciff cifs ciii ciis cipf cipp cips circ cire ciri cirr cirs cis- cisc cise cisp cisr ciss cisy cpce cpcs cpep cper cpff cpic cpif cpps cpre cpri cprs cpsc cpsr crcc crce crcr cre- crec cree crei crep cres crfc crfs cric crie crif crip cris crpc crps crsp crss cry- crys cscc csce cscf csci cscr cscs csec csee csep cser csfc csfr csir csis cspc cspe cspi csps csrc csrs csse cssr csys cyc- cycc cycs cyfe cyfi cyfs cypc cyps cyre cyrs cyse cyy- cyyc eccc ecce ecci ecef eces ecfc ecfr ecfs ecip ecis ecpp ecrc ecrf ecri ecrr ecsc ecse ecsp ecss eecs eeee eees eefe eeps eerc eers eery eese eesi eesy efes effi effs effy efic efsi eics eiec eiei eier eies eifs eipr eire eirs eiry eise eiss eisy epcc epci epec epee eper epes epfc epi- epic epie epip epis eppc eppp epps eppy eprp eprs epsc epsf epsi epsp epss ercc erce ercp erec erei erer eres erfc erfs eric erie eris erpe erps errc erre errs erse ersi eryc erye esce esci escr escs esee eser eses esfp esfs esie esis espc espe espi espp esps espy esri esse essi essp essy eyec eyer eyes eyey eyfi eyir eype eyre eyry eyse eyyr fccf fccp fces fcic fcii fcps fcsc fece feer fees fefc fefe feff fefi feie feir feis fepc feps ferc fere ferr fers fery fese fess feyr feys ffcc ffee ffff ffii ffps ffrr ffss ficc fice fics fiec fief fier fies fifc fife fiff fifi fiii fipp fips fire firs firy fisc fise fisi fiss fp-c fpcc fprf frcc frcp free frei frep fres frey frfc fric frie frip fris frps frsc frye frys fscc fsec fsfi fspc fspf fssc fssf fssp fyce fyfe fyfi fyre fyrs fyry iccc iccf icci iccp iccr iccs icec icee icef icer ices icey icis icpc icps icrc icre icrf icrr icrs icry icsc icse icsi icsp icsr icss iecc ieie iere ieri iers iesc iesi iesr ifcp ifer ifes iffy ific ifis ifps ifrf ifri ifsc ifsp iies iiie iiii iiis iipf iirc iirs iisc iisi iisp iisr ipcc ipce ipcs ipec iper ipes ipfc ipie ippc ippf ippr ippy ipri ipsc ipse ipsi ipsp ipss ircc ircs iree irer ires irfe iri- iric irie irip iris iriy 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 ispc ispe ispf ispr isps ispy isri isrp issc isse issf issi issp issr isss issy isys iyer iyre iyse pccc pcce pccs pcep pcer pcfc pcip pcpp pcps pcrc pcre pcrf pcse pece peci pecr pecs pecy peec peep peer pees pefc peff pefs peip peir peis pepe pepi peps per- perc pere perf peri perp perr pers pery pese pesi pess pesy peyr peys pfce pfcs pfff pffr pfic pfis pfps picc pice pici picr pics picy piep pier pies piff pifs piip pipe pipi pipp pips pipy pirc pire piri pirr pirs piry pise pisi piss pisy piye piys ppcc ppci ppcs pper ppic ppie ppif pppp ppps pprc pprf ppsf ppss ppye prcc prcf prcp prcs pre- prec pree pref prep pres prey prfc prfs pri- prie prif prii pris prps prri prrs prsc prse prsi prss prys psci psec psei psfs psip psis pspi pspp pspr psps psrp pssc psse psy- psys pyce pyep pyes pyic pype pypy pyr- pyre pyri pyry pyse pyss rccc rccs rcep rcfc rcic rcis rcpi rcps rcsc rcsi rcss rcyc recc rece reci recp recr recs recy reef reep rees refe reff refi refr refs reif reii reir reis repe repi repp repr reps repy rere reri rers rery rese resi resp ress reye reys rfef rffc rfic ricc rice rics rief riep rier ries rife riff rifs riif riis ripe ripi ripp ripr rips rire riri rirs risc rise risi risp riss riyf rpcs rpfc rpii rpps rpyc rrfc rrif rrrr rrsp rscc rscs rscy rsee rsfc rsis rsps rsre ryes ryfe ryff ryif ryip ryis rype rysy ryyf s-ic s-ii sccc scce sccp sccs sccy scec scee scep scer scey scfc scfe scfi sci- scic scie scif scip scir scis scpe scpi scps scr- scrc scre scri scrs scry scsc scsi scsr scye se-c se-e se-f se-i se-s se-y sec- secc sece secr secs secy seec seef seep seer sees seey seff sefi seie seif seii seip seir seis sepe sepi sepp sepr seps serc sere serf seri serp serr sers sery sesc sese sesi sess seye seyf seys sfcc sfcs sfer sffc sfpc sfrc sfss sicc sice sici sicp sics siec sief sier sies sife siff sifr sify sipc sipe sipi sipp sips sipy sirc sire sirf siri sirp sirr sirs sisc sise sisi siss sisy siyi spcc spcs spec spee spef sper spes spey spfc spfs spic spie spip spir spis sppf spps spri sprs spry spse spsp spss spy- spyr spys srcc srec sres srfc srfi sris srpc srps srsp sscc ssce ssci sscp sscs ssec ssee ssep sses ssfc ssfp ssis sspc sspe sspf ssps ssrc ssri ssrs sssc sssf sssi ssss syce sycr syer syes syfe syff syfy syis sype syre syrs syry syse syss yccc ycee ycie yeep yeer yees yefe yeff yeie yeii yeir yepe yepp yeps yere yeri yerr yers yery yesi yess yeye yeyi yeyr yiff yipe yips yire yirr yise yiss ypcc ypir ypsi ysee yser yses ysii yspi ysse yyfe yyff yyyy