cccc ccci cccp cccs ccic ccii ccip ccir ccis ccix ccpp ccpr ccps ccrc ccri ccrp ccrs ccsi ccsp ccss ccxi cicc cici cicr cics ciii ciis cipp cips circ ciri cirr cirs cis- cisc cisp cisr ciss cixi cpcs cpic cpix cpps cpri cprs cpsc cpsr cpsx crcc crcr cric crip cris crpc crps crsp crss cscc csci cscr cscs csir csis csix cspc cspi csps csrc csrs cssr cxii cxix cxxi cxxx iccc icci iccp iccr iccs icis icpc icps icrc icrr icrs icsc icsi icsp icsr icss iiii iiis iirc iirs iisc iisi iisp iisr ipcc ipcs ipix ippc ippr ipri ipsc ipsi ipsp ipss ircc ircs ircx iri- iric irip iris irix irpc irps irrc irri irrs irsp iscc isci iscp iscr iscs isic isis ispc ispr isps isri isrp issc issi issp issr isss ixxi pccc pccs pcip pcpp pcps pcrc picc pici picr pics piip pipi pipp pips pirc piri pirr pirs pisi piss pixx ppcc ppci ppcs ppic pppp ppps pprc ppss prcc prcp prcs pri- prii pris prix prps prri prrs prsc prsi prss psci psip psis pspi pspp pspr psps psrp pssc rccc rccs rcic rcis rcpi rcps rcsc rcsi rcss ricc rics riis ripi ripp ripr rips riri rirs risc risi risp riss rixc rpcs rpii rpix rpps rrrr rrsp rscc rscs rsis rsps s-ic s-ii sccc sccp sccs sci- scic scip scir scis scpi scps scr- scrc scri scrs scsc scsi scsr sicc sici sicp sics sipc sipi sipp sips sirc siri sirp sirr sirs sisc sisi siss sixx spcc spcs spic spip spir spis spix spps spri sprs spsp spss srcc sris srpc srps srpx srsp sscc ssci sscp sscs ssis sspc ssps sspx ssrc ssri ssrs sssc sssi ssss xcii xcis xcri xics xiii xisi xixi xpcc xxii xxix xxxi xxxx