cccc ccci cccs ccic ccii ccir ccis ccrc ccri ccrs ccrt ccsi ccss ccst cctc cctt cicc cici cicr cics cict ciii ciis ciit circ ciri cirr cirs cirt cis- cisc cisr ciss cist citi cits citt crcc crcr cric cris crit crrt crss crst crtc crts cscc csci cscr cscs csir csis csit csrc csrs cssr cstc cstr csts ctic ctrc ctrs ctsc ctss ctts iccc icci iccr iccs icct icis icrc icrr icrs icrt icsc icsi icsr icss icst icts iiii iiis iiit iirc iirs iisc iisi iisr iist iitr iitt ircc ircs iri- iric iris irrc irri irrs irti irts iscc isci iscr iscs isct isic isis isit isri issc issi issr isss istc isti istr ists itcs itic itis itri itrs itsi rccc rccs rcic rcis rcsc rcsi rcss rctc rcti rcts ricc rics rict riis riri rirs risc risi riss rist riti rits ritt rrrr rscc rscs rsis rsts rtcc rtss rtts s-ic s-ii sccc sccs scct sci- scic scir scis scit scr- scrc scri scrs scsc scsi scsr scst sctc sctr scts sicc sici sics siit sirc siri sirr sirs sirt sisc sisi siss sist sit- sitc siti sits sitt srcc srct sris srtr sscc ssci sscs ssis ssit ssrc ssri ssrs sssc sssi ssss sstc ssts stcc stcs stic stir stis stit strc stri strs stsi stss sttc sttr tccc tctc tcts ticc tics tiit tiri tirr tirs tisi tiss tist titc titi tits titt trcc tri- tric tris trit trsi trst trtc trtr tscc tsis tssi tssr tsst tstc tsts ttss tttt