cccc ccci cccp ccic ccii ccip ccir ccoc ccpp ccpr ccrc ccri ccrp ccrt cctc cctt cicc cici cico cicr cict ciii ciit cior cipo cipp circ ciri ciro cirr cirt citi cito citp citt coco cocp coct coip coir coit coop coot copi copo copp copr copt cor- corc cori coro corp corr cort cotc coti coto cott cpic cpio cpri cprt cptp cptr crcc crcr cric crip crit croc croo crop cror crot crpc crrt crtc crtp ctcp ctic ctor ctot ctpo ctpp ctrc ctrp iccc icci icco iccp iccr icct icoc icor icpc icpo icrc icrr icrt ictp iiii iiio iiit iioi iioo iiop iirc iitr iitt ioci iocp ioii ioio ioit iooi iooo iori ioto ipcc ipct ipop ippc ippo ippr ipri iptc ipto ircc iri- iric irio irip iroc irop irpc irrc irri irti irtp itic itoi itoo itor itpc itri itto occc occi occt ocpp ocro ocrr oct- octi octo oici oiii oipc oirt oitc oiti oocr oooo oort ootp opic opii opio opit opo- opor oppi oppo opti opto orci orco ori- oric orio orit oro- oror orot orpc orpi orri orro ortc orto otic otit oto- otoo otor otpp otro otti otto pccc pcip pcpp pcrc picc pici pico picr pict piip piot pipi pipo pipp pirc piri piro pirr piti pito pitr pitt poco poio poop poor poot pop- popc popi popo popp popt porc pori poro porr port potc poti poto pott ppcc ppci ppic pppo pppp pprc pptt prcc prcp pri- prii pro- proc proo prop prot prri prtc prti prtp prtr ptcc ptop pttc rccc rcic rcpi rcpo rcpt rctc rcti ricc rico rict riot ripi ripp ripr ript riri riti rito ritt rocc roco roio roir roit rooi roop roor root ropo rorc rori roro rort rotc roti roto rotr rott rpii rrrr rtcc rttp tccc tcpo tctc ticc tico tiit tiop tip- tipc tipi tipo tipp tipt tiri tiro tirr titc titi tito titp titt toci toco toit toor toot top- topi topo topp topt torc tori toro torp torr tort totc toti toto totr tott tpcp tpir tppp tppr tptp tptr trcc tri- tric trio trip trit troc troi troo trop trot trpc trpp trtc trtr ttcp ttop tttt