cccc cccf ccci cccs ccfc ccff ccfi ccic ccii ccir ccis ccoc ccrc ccrf ccri ccrs ccsf ccsi ccss cfcf cfco cfcs cfcy cffr cfor cfos cfry cfsi cicc cici cico cicr cics ciff cifs ciii ciis cior cios circ ciri ciro cirr cirs cis- cisc cisr ciss cisy coco cofc coff cofi cofs coif coir cois coof coos cor- corc corf cori coro corr cors cory cosc cosi coso coss cosy coyf coyo coyr coys crcc crcr crfc crfs cric crif cris croc croo cror croy crss cry- cryo crys cscc cscf csci csco cscr cscs csfc csfr csio csir csis csor csos csrc csrs cssr csys cyc- cycc cycs cyfi cyfs cyrs cyy- cyyc fccf fcic fcii fcsc ffcc ffff ffii ffrr ffss ficc fico fics fifc fiff fifi fifo fiii fior fios firs firy fisc fisi fiss foci foco focs fofo fois foof foos for- fori foro forr fors fosi foso foss foys frcc frfc fric frio fris fros frsc frso frys fscc fsfi fsfo fssc fssf fyfi fyrs fyry iccc iccf icci icco iccr iccs icis icoc icor icos icrc icrf icrr icrs icry icsc icsi icsr icss ifco iffy ific ifis ifor ifrf ifri ifsc ifso ifyo iiii iiio iiis iioi iioo iios iirc iirs iisc iisi iisr ioci iofc ioii ioio ioof iooi iooo ioos iori iors ioso ircc ircs iri- iric irio iris iriy iroc irrc irri irrs irsf iscc isci isco iscr iscs isfc isic isis iso- isoc isof isor isos isri issc issf issi isso issr isss issy isys iyos occc occi ocis ocos ocro ocrr ocrs ocys ofcr off- offc offo offr offs offy ofor oici oiii oios oiry oisc oocr ooff oofs oofy oooo ooos oory oosi orci orco orcs orff orfi orfs ori- oric orif orio oris oro- orof 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 rcfc rcic rcis rcos rcsc rcsi rcss rcyc rffc rfic ricc rico rics riff rifs riif riis rios riri rirs risc risi riso riss riyf riyo rocc roco rocs rofc roff rofo roif roio roir rois roof rooi roor roos rorc rori roro rory rosc rosi roso ross rosy roys rrfc rrif rrrr rscc rscs rscy rsfc rsis rsos ryff ryif ryis rysy ryyf s-ic s-ii s-os sccc sccs sccy scfc scfi sci- scic scif scio scir scis scoo scor scr- scrc scri scrs scry scsc scsi scso scsr sfcc sfco sfcs sffc sfio sfor sfos sfrc sfro sfss sicc sici sico sics siff sifo sifr sify sior sios sirc sirf siri siro sirr sirs sisc sisi siss sisy siyi soci soco socr socs socy sofi sofo soic soif soir sois soof soor soos sooy sori soro sorr sors sory sosi soso soss soyo soys srcc srfc srfi sris sros sscc ssci sscs ssfc ssis ssoc ssrc ssri ssrs sssc sssf sssi ssss syco sycr syff syfy syis syro syrs syry syso syss yccc yiff yirr yiss yoff yoof yori yoro yory yosi yoso yoyo yrof ysco ysii yyff yyyy