cccc cccm cccp ccmc ccmm ccmp ccpm ccpp ccpr ccrc ccrp ccrt cctc cctt cmcc cmmc cmpc cmpp cmrr cmtc cpcm cpmp cppm cprm cprt cptp cptr crcc crcr crmp crpc crrt crtc crtm crtp cry- crym ctcp ctpp ctrc ctrm ctrp cyc- cycc cym- cypc cyrt cyt- cyy- cyyc mccc mcmc mcmt mcpc mcpp mcrc mctc mmcc mmcm mmct mmmc mmmm mmpc mmpr mmrc mmrp mmyy mpcc mpct mpmc mppc mppp mprp mptc mptp mr-c mrcc mrcp mrmc mrrc mrtm mrtt mtcr mtrc mtrr mttr myc- mymp mymy myrr myrt myry pccc pcpm pcpp pcrc pmcc pmmp pmpm pmrc pmrt ppcc ppcm pppp pprc pprm pptt prcc prcp prmc prrm prtc prtm prtp prtr prym ptcc ptmp pttc pym- pymt pypy pyr- pyry pytt rccc rcmp rcpt rctc rcyc rmrp rpyc rrmc rrmp rrrr rtcc rtcm rtmc rtmp rttp rytt ryyt tccc tcpy tctc tmcc tmcm tmtt tpcp tpmt tppp tppr tptp tptr trcc trpc trpm trpp trtc trtr try- trym tryp ttcp tttt tymp typ- typp typy tyr- tyrr tytt tyty yccc yctc ypcc yyyy