cccc cccp cccs cccu ccee ccpe ccpp ccpr ccps ccrc ccre ccrp ccrs ccsp ccss ccuc ccup ccus cec- cece cecp cecs ceec cees cepc cepe cepp cepr ceps cer- cerc cere cerp cers cesc cese cesp cesr cess cpce cpcs cpcu cpep cper cpps cpre cprs cpsc cpsr cpsu cpus crcc crce crcr cre- crec cree crep cres creu crpc crps crsp crss crue crup crus cscc csce cscr cscs csec csee csep cser cspc cspe csps csrc csrs csse cssr csup csur csus cucc cuce cuer cues cupe cupp cupr cups cure curr curs cusp cuss cusu eccc ecce eces ecpp ecrc ecrr ecru ecsc ecse ecsp ecss ecsu ecus eecs eeee eees eeps eerc eers eese epcc epec epee eper epes eppc eppp epps eprp eprs epsc epsp epss epus ercc erce ercp erec erer eres erpe erps errc erre errs erse eruc erur erus esce escr escs escu esee eser eses espc espe espp esps esse essp essu esus euer eur- eurc eure euse pccc pcce pccs pcep pcer pcpp pcps pcrc pcre pcse pece pecr pecs peec peep peer pees pepe peps per- perc pere perp perr pers peru pese pess pesu peur ppcc ppcs pper pppp ppps pprc ppru ppss ppur prcc prcp prcs pre- prec pree prep pres preu prps prrs prsc prse prss prue prus pruu pscu psec pspp pspr psps psrp pssc psse pu-e puce puer pueu pupe pups pupu pur- pure purp purr purs puru puss puuc rccc rccs rcep rcps rcsc rcss recc rece recp recr recs recu reep rees repe repp repr reps repu rere rers reru rese resp ress reue reup reus reuu rpcs rpps rrrr rrsp rscc rscs rsee rsps rsre ruce ruer rues rupe rupp rurc rure rurp rurs ruru ruse russ rusu sccc scce sccp sccs scec scee scep scer scpe scps scr- scrc scre scrs scsc scsr scsu scup scur se-c se-e se-s se-u sec- secc sece secr secs secu seec seep seer sees seeu sepe sepp sepr seps sepu serc sere serp serr sers seru sesc sese sess seur spcc spcs spec spee sper spes spps sprs spse spsp spss spue spur spus srcc srec sres srpc srps srsp sscc ssce sscp sscs ssec ssee ssep sses sspc sspe ssps ssrc ssrs sssc ssss suc- succ sucr sucs suee suer sues sueu sup- supe supp supr sups sur- surc sure surp surr surs suru sus- suse susp suss susu suus u-rp uccp uces ucrc ucsc ucsu uers uess upcs uppc uppe uppp uppu upsc upse upup ure- ures urre urse urss ursu urup urur urus uscc usce uscs usee user uses uspc uspp usps ussc usse ussr usss ussu usus uucp uuuu