cccc ccci cccp cccs ccic ccii ccip ccis ccoc ccpp ccps ccsi ccsp ccss cicc cici cico cics ciii ciis cios cipo cipp cips cis- cisc cisp ciss coco cocp coip cois coop coos copi copo copp cops cosc cosi coso cosp coss cpcs cpic cpio cpos cpps cpsc cpso cscc csci csco cscs csio csis csos cspc cspi csps iccc icci icco iccp iccs icis icoc icos icpc icpo icps icsc icsi icsp icss iiii iiio iiis iioi iioo iiop iios iisc iisi iisp ioci iocp ioii ioio iooi iooo ioos iops ioso ipcc ipcs ipop ipos ippc ippo ipsc ipsi ipso ipsp ipss iscc isci isco iscp iscs isic isis iso- isoc isop isos ispc isps issc issi isso issp isss occc occi ocis ocos ocpp oici oiii oios oipc oisc oooo ooos oops oosi opic opii opio opis opo- opos oppi oppo opps opsi oscc osci osco osii osip osis osoi osoo osos ossi osso pccc pccs pcip pcos pcpp pcps pcso picc pici pico pics piip pipi pipo pipp pips pisi piso piss poco pocs poio pois poop poos pop- popc popi popo popp pops posi poso poss ppcc ppci ppcs ppic ppos pppo pppp ppps ppss psci psco psip psis psoc psoi psos pspi pspp psps pssc psso s-ic s-ii s-os sccc sccp sccs sci- scic scio scip scis scoo scop scpi scpo scps scsc scsi scso sicc sici sico sicp sics siop sios sipc sipi sipo sipp sips sisc sisi siss soci soco socs soic sois soop soos sopi sopo sopp sops sosi soso soss spcc spco spcs spic spio spip spis spoc spoo spop spos spps spso spsp spss sscc ssci sscp sscs ssis ssoc ssop sspc sspo ssps sssc sssi ssss