cccc cccp cccs cccu ccpp ccpr ccps ccrc ccrp ccrs ccsp ccss ccuc ccup ccus cpcs cpcu cpps cprs cpsc cpsr cpsu cpus crcc crcr crpc crps crsp crss crup crus cry- crys cscc cscr cscs cspc csps csrc csrs cssr csup csur csus csys cucc cupp cupr cups curr curs cury cusp cuss cusu cusy cuy- cuyp cuyr cyc- cycc cycs cypc cyps cyrs cyy- cyyc pccc pccs pcpp pcps pcrc ppcc ppcs pppp ppps pprc ppru ppss ppur prcc prcp prcs prps prrs prsc prss prus pruu prys pscu pspp pspr psps psrp pssc psy- psys pups pupu pupy pur- purp purr purs puru pury puss puuc puy- puys pypy pyr- pyry pyss rccc rccs rcps rcsc rcss rcyc rpcs rpps rpyc rrrr rrsp rscc rscs rscy rsps rupp rupy rurc rurp rurs ruru russ rusu rusy ruys rysy sccc sccp sccs sccy scps scr- scrc scrs scry scsc scsr scsu scup scur spcc spcs spps sprs spry spsp spss spur spus spy- spyr spys srcc srpc srps srsp sscc sscp sscs sspc ssps ssrc ssrs sssc ssss suc- succ sucr sucs sup- supp supr sups supy sur- surc surp surr surs suru sury sus- susp suss susu susy suus suyr suyu sycr syrs syry syss u-rp uccp ucrc ucsc ucsu upcs uppc uppp uppu uppy upsc upsy upup urcy urry urss ursu ursy urup urur urus uscc uscs uspc uspp usps ussc ussr usss ussu ussy usus uucp uuuu yccc ypcc yssu yups yury yuyu yyyy