cccc cccf ccci cccs ccfc ccff ccfi ccic ccii ccir ccis ccoc ccrc ccrf ccri ccrs ccsf ccsi ccss cfcf cfco cfcs cffr cfor cfos cfsi cicc cici cico cicr cics ciff cifs ciii ciis cior cios circ ciri ciro cirr cirs cis- cisc cisr ciss coco cofc coff cofi cofs coif coir cois coof coos cor- corc corf cori coro corr cors cosc cosi coso coss crcc crcr crfc crfs cric crif cris croc croo cror crss cscc cscf csci csco cscr cscs csfc csfr csio csir csis csor csos csrc csrs cssr fccf fcic fcii fcsc ffcc ffff ffii ffrr ffss ficc fico fics fifc fiff fifi fifo fiii fior fios firs fisc fisi fiss foci foco focs fofo fois foof foos for- fori foro forr fors fosi foso foss frcc frfc fric frio fris fros frsc frso fscc fsfi fsfo fssc fssf iccc iccf icci icco iccr iccs icis icoc icor icos icrc icrf icrr icrs icsc icsi icsr icss ifco ific ifis ifor ifrf ifri ifsc ifso 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 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 occc occi ocis ocos ocro ocrr ocrs ofcr off- offc offo offr offs ofor oici oiii oios oisc oocr ooff oofs oooo ooos oosi orci orco orcs orff orfi orfs ori- oric orif orio oris oro- orof oror oros orri orro orrs orsi orso oscc osci osco osii osis osoi osoo osor osos osro ossi osso rccc rccs rcfc rcic rcis rcos rcsc rcsi rcss rffc rfic ricc rico rics riff rifs riif riis rios riri rirs risc risi riso riss rocc roco rocs rofc roff rofo roif roio roir rois roof rooi roor roos rorc rori roro rosc rosi roso ross rrfc rrif rrrr rscc rscs rsfc rsis rsos s-ic s-ii s-os sccc sccs scfc scfi sci- scic scif scio scir scis scoo scor scr- scrc scri scrs scsc scsi scso scsr sfcc sfco sfcs sffc sfio sfor sfos sfrc sfro sfss sicc sici sico sics siff sifo sifr sior sios sirc sirf siri siro sirr sirs sisc sisi siss soci soco socr socs sofi sofo soic soif soir sois soof soor soos sori soro sorr sors sosi soso soss srcc srfc srfi sris sros sscc ssci sscs ssfc ssis ssoc ssrc ssri ssrs sssc sssf sssi ssss