cccc ccci cccs ccic ccii ccir ccis ccoc ccrc ccri ccrs ccrt ccsi ccss ccst cctc cctt cicc cici cico cicr cics cict ciii ciis ciit cior cios circ ciri ciro cirr cirs cirt cis- cisc cisr ciss cist citi cito cits citt coco coct coir cois coit coos coot cor- corc cori coro corr cors cort cosc cosi coso coss cost cotc coti coto cots cott crcc crcr cric cris crit croc croo cror crot crrt crss crst crtc crts cscc csci csco cscr cscs csio csir csis csit csor csos csot csrc csrs cssr cstc csto cstr csts ctic ctor ctos ctot ctrc ctrs ctsc ctss ctts iccc icci icco iccr iccs icct icis icoc icor icos icrc icrr icrs icrt icsc icsi icsr icss icst icts iiii iiio iiis iiit iioi iioo iios iirc iirs iisc iisi iisr iist iitr iitt ioci ioii ioio ioit iooi iooo ioos iori iors ioso ioto ircc ircs iri- iric irio iris iroc irrc irri irrs irti irts iscc isci isco iscr iscs isct isic isis isit iso- isoc isor isos isri issc issi isso issr isss istc isti isto istr ists itcs itic itis itoi itoo itor itos itri itrs itsi itso itto occc occi occt ocis ocos ocro ocrr ocrs oct- octi octo octs oici oiii oios oirt oisc oist oitc oiti oocr oooo ooos oort oosi oost oots orci orco orcs ori- oric orio oris orit oro- oror oros orot orri orro orrs orsi orso ortc orto orts oscc osci osco osii osis osoi osoo osor osos osro ossi osso ostc osti ostr osts otic otis otit oto- otoo otor otos otro otrs otso otti otto otts rccc rccs rcic rcis rcos rcsc rcsi rcss rctc rcti rcts ricc rico rics rict riis rios riot riri rirs risc risi riso riss rist riti rito rits ritt rocc roco rocs roio roir rois roit rooi roor roos root rorc rori roro rort rosc rosi roso ross rost rotc roti roto rotr rots rott rrrr rscc rscs rsis rsos rsts rtcc rtss rtts s-ic s-ii s-os sccc sccs scct sci- scic scio scir scis scit scoo scor scot scr- scrc scri scrs scsc scsi scso scsr scst sctc scto sctr scts sicc sici sico sics siit sior sios siot sirc siri siro sirr sirs sirt sisc sisi siss sist sit- sitc siti sito sits sitt soci soco socr socs soic soir sois soit soor soos soot sori soro sorr sors sort sosi soso soss sost sotc soto sots srcc srct sris sros srtr sscc ssci sscs ssis ssit ssoc ssot ssrc ssri ssrs sssc sssi ssss sstc ssts stcc stcs stic stio stir stis stit stoo stor stos stot strc stri stro strs stsi stss sttc sttr tccc tcos tctc tcts ticc tico tics tiit tios tiri tiro tirr tirs tisi tiso tiss tist titc titi tito tits titt toci toco tois toit toor toos toot torc tori toro torr tors tort tosc tosi toso toss tost totc toti toto totr tots tott trcc tri- tric trio tris trit troc troi troo tros trot trsi trst trtc trtr tscc tsis tsoi tsos tssi tssr tsst tstc tsts ttss tttt