cccc cccf ccci cccs ccfc ccff ccfi ccic ccii ccis ccoc ccsf ccsi ccss cfcf cfco cfcs cfos cfsi cicc cici cico cics ciff cifs ciii ciis cios cis- cisc ciss coco cofc coff cofi cofs coif cois coof coos cosc cosi coso coss cscc cscf csci csco cscs csfc csio csis csos fccf fcic fcii fcsc ffcc ffff ffii ffss ficc fico fics fifc fiff fifi fifo fiii fios fisc fisi fiss foci foco focs fofo fois foof foos fosi foso foss fscc fsfi fsfo fssc fssf iccc iccf icci icco iccs icis icoc icos icsc icsi icss ifco ific ifis ifsc ifso iiii iiio iiis iioi iioo iios iisc iisi ioci iofc ioii ioio ioof iooi iooo ioos ioso iscc isci isco iscs isfc isic isis iso- isoc isof isos issc issf issi isso isss occc occi ocis ocos off- offc offo offs oici oiii oios oisc ooff oofs oooo ooos oosi oscc osci osco osii osis osoi osoo osos ossi osso s-ic s-ii s-os sccc sccs scfc scfi sci- scic scif scio scis scoo scsc scsi scso sfcc sfco sfcs sffc sfio sfos sfss sicc sici sico sics siff sifo sios sisc sisi siss soci soco socs sofi sofo soic soif sois soof soos sosi soso soss sscc ssci sscs ssfc ssis ssoc sssc sssf sssi ssss