cccc ccci cccp cccs ccee ccic ccii ccip ccir ccis ccpe ccpp ccpr ccps ccrc ccre ccri ccrp ccrs ccsi ccsp ccss cec- cece ceci cecp cecs ceec cees ceip cepc cepe cepp cepr ceps cer- cerc cere ceri cerp cers cesc cese cesi cesp cesr cess cicc cici cicr cics ciee cier cies ciii ciis cipp cips circ cire ciri cirr cirs cis- cisc cise cisp cisr ciss cpce cpcs cpep cper cpic cpps cpre cpri cprs cpsc cpsr crcc crce crcr cre- crec cree crei crep cres cric crie crip cris crpc crps crsp crss cscc csce csci cscr cscs csec csee csep cser csir csis cspc cspe cspi csps csrc csrs csse cssr eccc ecce ecci eces ecip ecis ecpp ecrc ecri ecrr ecsc ecse ecsp ecss eecs eeee eees eeps eerc eers eese eesi eics eiec eiei eier eies eipr eire eirs eise eiss epcc epci epec epee eper epes epi- epic epie epip epis eppc eppp epps eprp eprs epsc epsi epsp epss ercc erce ercp erec erei erer eres eric erie eris erpe erps errc erre errs erse ersi esce esci escr escs esee eser eses esie esis espc espe espi espp esps esri esse essi essp iccc icci iccp iccr iccs icec icee icer ices icis icpc icps icrc icre icrr icrs icsc icse icsi icsp icsr icss iecc ieie iere ieri iers iesc iesi iesr iies iiie iiii iiis iirc iirs iisc iisi iisp iisr ipcc ipce ipcs ipec iper ipes ipie ippc ippr ipri ipsc ipse ipsi ipsp ipss ircc ircs iree irer ires iri- iric irie irip iris irpc irpe irps irrc irre irri irrs irse irsp iscc isci iscp iscr iscs isec isee isep iser ises isic isie isis ispc ispe ispr isps isri isrp issc isse issi issp issr isss pccc pcce pccs pcep pcer pcip pcpp pcps pcrc pcre pcse pece peci pecr pecs peec peep peer pees peip peir peis pepe pepi peps per- perc pere peri perp perr pers pese pesi pess picc pice pici picr pics piep pier pies piip pipe pipi pipp pips pirc pire piri pirr pirs pise pisi piss ppcc ppci ppcs pper ppic ppie pppp ppps pprc ppss prcc prcp prcs pre- prec pree prep pres pri- prie prii pris prps prri prrs prsc prse prsi prss psci psec psei psip psis pspi pspp pspr psps psrp pssc psse rccc rccs rcep rcic rcis rcpi rcps rcsc rcsi rcss recc rece reci recp recr recs reep rees reii reir reis repe repi repp repr reps rere reri rers rese resi resp ress ricc rice rics riep rier ries riis ripe ripi ripp ripr rips rire riri rirs risc rise risi risp riss rpcs rpii rpps rrrr rrsp rscc rscs rsee rsis rsps rsre s-ic s-ii sccc scce sccp sccs scec scee scep scer sci- scic scie scip scir scis scpe scpi scps scr- scrc scre scri scrs scsc scsi scsr se-c se-e se-i se-s sec- secc sece secr secs seec seep seer sees seie seii seip seir seis sepe sepi sepp sepr seps serc sere seri serp serr sers sesc sese sesi sess sicc sice sici sicp sics siec sier sies sipc sipe sipi sipp sips sirc sire siri sirp sirr sirs sisc sise sisi siss spcc spcs spec spee sper spes spic spie spip spir spis spps spri sprs spse spsp spss srcc srec sres sris srpc srps srsp sscc ssce ssci sscp sscs ssec ssee ssep sses ssis sspc sspe ssps ssrc ssri ssrs sssc sssi ssss