cccc ccci cccs ccic ccii ccir ccis ccoc ccrc ccri ccrs ccsi ccss cicc cici cico cicr cics ciii ciis cior cios circ ciri ciro cirr cirs cis- cisc cisr ciss cisy coco coir cois coos cor- corc cori coro corr cors cory cosc cosi coso coss cosy coyo coyr coys crcc crcr cric cris croc croo cror croy crss cry- cryo crys cscc csci csco cscr cscs csio csir csis csor csos csrc csrs cssr csys cyc- cycc cycs cyrs cyy- cyyc iccc icci icco iccr iccs icis icoc icor icos icrc icrr icrs icry icsc icsi icsr icss iiii iiio iiis iioi iioo iios iirc iirs iisc iisi iisr ioci ioii ioio iooi iooo ioos iori iors ioso ircc ircs iri- iric irio iris iriy iroc irrc irri irrs iscc isci isco iscr iscs isic isis iso- isoc isor isos isri issc issi isso issr isss issy isys iyos occc occi ocis ocos ocro ocrr ocrs ocys oici oiii oios oiry oisc oocr oooo ooos oory oosi orci orco orcs ori- oric orio oris oro- oror oros oroy orri orro orrs orry orsi orso orsy orys oscc osci osco osii osis osoi osoo osor osos osro ossi osso ossy oyri oyss rccc rccs rcic rcis rcos rcsc rcsi rcss rcyc ricc rico rics riis rios riri rirs risc risi riso riss riyo rocc roco rocs roio roir rois rooi roor roos rorc rori roro rory rosc rosi roso ross rosy roys rrrr rscc rscs rscy rsis rsos ryis rysy s-ic s-ii s-os sccc sccs sccy sci- scic scio scir scis scoo scor scr- scrc scri scrs scry scsc scsi scso scsr sicc sici sico sics sior sios sirc siri siro sirr sirs sisc sisi siss sisy siyi soci soco socr socs socy soic soir sois soor soos sooy sori soro sorr sors sory sosi soso soss soyo soys srcc sris sros sscc ssci sscs ssis ssoc ssrc ssri ssrs sssc sssi ssss syco sycr syis syro syrs syry syso syss yccc yirr yiss yori yoro yory yosi yoso yoyo ysco ysii yyyy