cccc cccm cccp cccu ccmc ccmm ccmp ccpm ccpp ccpr ccrc ccrp ccuc ccup cmcc cmmc cmpc cmpp cmrr cpcm cpcu cpmp cppm cprm crcc crcr crmp crpc crum crup cucc cucm cum- cump cupp cupr curr mccc mcmc mcpc mcpp mcrc mmcc mmcm mmmc mmmm mmpc mmpr mmpu mmrc mmrp mpcc mpmc mppc mppp mprp mr-c mrcc mrcp mrmc mrrc muc- mucc mucu mumm mump mumu murc murr muru pccc pcpm pcpp pcrc pmcc pmmp pmmu pmpm pmrc ppcc ppcm pppp pprc pprm ppru ppur prcc prcp prmc prrm prum pruu pump pupu pur- purp purr puru puuc rccc rcmp rmrp rrmc rrmp rrrr rrum rumm rump rupp rurc rurp ruru u-rp uccp ucmc ucrc umpc upmc uppc uppp uppu upup urum urup urur uucp uuuu