cccc ccci cccp ccic ccii ccip ccir ccpp ccpr ccrc ccri ccrp ccrt cctc cctt cicc cici cicr cict ciii ciit cipp circ ciri cirr cirt citi citp citt cpic cpri cprt cptp cptr crcc crcr cric crip crit crpc crrt crtc crtp ctcp ctic ctpp ctrc ctrp iccc icci iccp iccr icct icpc icrc icrr icrt ictp iiii iiit iirc iitr iitt ipcc ipct ippc ippr ipri iptc ircc iri- iric irip irpc irrc irri irti irtp itic itpc itri pccc pcip pcpp pcrc picc pici picr pict piip pipi pipp pirc piri pirr piti pitr pitt ppcc ppci ppic pppp pprc pptt prcc prcp pri- prii prri prtc prti prtp prtr ptcc pttc rccc rcic rcpi rcpt rctc rcti ricc rict ripi ripp ripr ript riri riti ritt rpii rrrr rtcc rttp tccc tctc ticc tiit tip- tipc tipi tipp tipt tiri tirr titc titi titp titt tpcp tpir tppp tppr tptp tptr trcc tri- tric trip trit trpc trpp trtc trtr ttcp tttt