cccc ccci ccic ccii ccir cciw ccoc ccow ccrc ccri ccrt cctc cctt cicc cici cico cicr cict ciii ciit cior circ ciri ciro cirr cirt citi cito citt ciww coco coct coir coit coot cor- corc cori coro corr cort cotc coti coto cott cotw cowt crcc crcr cric crit croc croo cror crot crow crrt crtc ctic ctor ctot ctrc cttw cwot cwrw iccc icci icco iccr icct icoc icor icrc icrr icrt icrw iiii iiio iiit iioi iioo iirc iitr iitt iiwi ioci ioii ioio ioit iooi iooo iori ioto ircc iri- iric irio iroc irrc irri irti itic itoi itoo itor itri itto iwcc iwiw occc occi occt ocro ocrr oct- octi octo oici oiii oirt oitc oiti oocr oooo oort ootw orci orco ori- oric orio orit oro- oror orot orri orro ortc orto orwo otic otit oto- otoo otor otow otro otti otto otwo owir owow owt- owtt rccc rcic rctc rcti ricc rico rict riot riri riti rito ritt riwo rocc roco roio roir roit rooi roor root rorc rori roro rort rotc roti roto rotr rott rowi rowr rowt roww rrrr rtcc tccc tctc ticc tico tiit tiri tiro tirr titc titi tito titt tiwi toci toco toit toor toot torc tori toro torr tort totc toti toto totr tott trcc tri- tric trio trit troc troi troo trot trow trtc trtr tttt twi- twic twit two- twoc twoo twot wccc wcci wcco wccr wcct wccw wcic wcii wcir wcit wcoc wcoo wcor wcot wcrc wcri wcro wcrr wcrt wcrw wctc wcti wcto wctr wctt wctw wcwc wcwi wicc wici wico wicr wiii wiit wioc wioi wioo wiot wiri wiro wirr wirt witc witi witr witt wiwi wocc woco wocr woic woio woir wooc woot woow worc wori woro worr wort worw wotc wotr wott wotw wowc wowi wowo wowt woww wrci wrco wrcr wrct wrcw wric writ wroc wroi wroo wrot wrow wrrc wrro wrrw wrtc wrti wrto wrtr wrtw wrwc wrwr wtcc wtci wtco wtcr wtct wtcw wtic wtoc wtor wtot wtow wtrc wtri wtro wtrt wtrw wttc wtti wtto wttr wttt wttw wtwo wtwr wtwt wtww wwco wwcr wwct wwcw wwii wwio wwor wwot wwow wwrc wwrr wwrw wwtc wwti wwtr wwtw wwwc wwwi wwwr wwww