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 cisy citi cito cits citt city coco coct coir cois coit coos coot cor- corc cori coro corr cors cort cory cosc cosi coso coss cost cosy cotc coti coto cots cott coty coyo coyr coys coyt crcc crcr cric cris crit croc croo cror crot croy crrt crss crst crtc crts cry- cryo crys cscc csci csco cscr cscs csio csir csis csit csor csos csot csrc csrs cssr cstc csto cstr csts csys ctic ctor ctos ctot ctrc ctrs ctsc ctss ctts cyc- cycc cycs cyrs cyrt cyst cyt- cyto cyy- cyyc iccc icci icco iccr iccs icct icis icoc icor icos icrc icrr icrs icrt icry 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 iriy 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 issy istc isti isto istr ists isty isys itcs itic itis itoi itoo itor itos itri itrs itry itsi itso itsy itto itty iyos occc occi occt ocis ocos ocro ocrr ocrs oct- octi octo octs octy ocys oici oiii oios oirt oiry oisc oist oitc oiti oocr oooo ooos oort oory oosi oost oots ooty orci orco orcs ori- oric orio oris orit oro- oror oros orot oroy orri orro orrs orry orsi orso orsy ortc orto orts orys oscc osci osco osii osis osoi osoo osor osos osro ossi osso ossy ostc osti ostr osts osyt otic otis otit oto- otoo otor otos otoy otro otrs otry otso otti otto otts otyr oyri oyss oyst rccc rccs rcic rcis rcos rcsc rcsi rcss rctc rcti rcts rcyc ricc rico rics rict riis rios riot riri rirs risc risi riso riss rist riti rito rits ritt riyo rocc roco rocs roio roir rois roit rooi roor roos root rorc rori roro rort rory rosc rosi roso ross rost rosy rotc roti roto rotr rots rott roty roys royt rrrr rscc rscs rscy rsis rsos rsts rtcc rtss rtts ryis ryot rysy rytt ryyt s-ic s-ii s-os sccc sccs scct sccy sci- scic scio scir scis scit scoo scor scot scr- scrc scri scrs scry 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 sisy sit- sitc siti sito sits sitt sity siyi soci soco socr socs socy soic soir sois soit soor soos soot sooy sori soro sorr sors sort sory sosi soso soss sost sotc soto sots soyo soys soyt 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 stoy strc stri stro strs stry stsi stss sttc sttr styr stys syco sycr syis syro syrs syrt syry syso syss syst sytt tccc tcos tctc tcts ticc tico tics tiit tios tiri tiro tirr tirs tiry tisi tiso tiss tist titc titi tito tits titt tiyi tiyo to-y toci toco tois toit toor toos toot torc tori toro torr tors tort tory tosc tosi toso toss tost tosy totc toti toto totr tots tott toty toyo toys toyt trcc tri- tric trio tris trit troc troi troo tros trot troy trsi trst trtc trtr try- tryo trys tscc tsis tsoi tsos tsoy tssi tssr tsst tstc tsts tsys ttoy ttss tttt ttys tyco tyir tyr- tyro tyrr tyss tyst tyti tyto tytt tyty yccc yctc yirr yiss yist yiti yoit yoot yori yoro yort yory yosi yoso yost yott yoyo ysco ysii yyyy