cccc ccci cccs ccic ccii ccis ccsi ccss ccst cctc cctt cicc cici cics cict ciii ciis ciit cis- cisc ciss cist citi cits citt cscc csci cscs csis csit cstc csts ctic ctsc ctss ctts iccc icci iccs icct icis icsc icsi icss icst icts iiii iiis iiit iisc iisi iist iitt iscc isci iscs isct isic isis isit issc issi isss istc isti ists itcs itic itis itsi s-ic s-ii sccc sccs scct sci- scic scis scit scsc scsi scst sctc scts sicc sici sics siit sisc sisi siss sist sit- sitc siti sits sitt sscc ssci sscs ssis ssit sssc sssi ssss sstc ssts stcc stcs stic stis stit stsi stss sttc tccc tctc tcts ticc tics tiit tisi tiss tist titc titi tits titt tscc tsis tssi tsst tstc tsts ttss tttt