cccc cccf cccp cccs cccu ccee ccfc ccff ccpe ccpp ccpr ccps ccrc ccre ccrf ccrp ccrs ccsf ccsp ccss ccuc ccup ccus cec- cece cecp cecs ceec cees cef- cefc ceke cepc cepe cepp cepr ceps cer- cerc cere cerf cerp cers cesc cese cesp cesr cess cfcf cfcs cffr cfpr cfps cfre cfrp cfse ckck ckcs cker ckfr ckpc ckpr ckrc cpce cpcs cpcu cpep cper cpff cpps cpre cprs cpsc cpsk cpsr cpsu cpus crcc crce crcr cre- crec cree crep cres creu crfc crfs crkc crkp crpc crps crsp crss crue cruk crup crus cscc csce cscf cscr cscs csec csee csep cser csfc csfr csks cspc cspe csps csrc csrs csse cssr csuf csup csur csus cucc cuce cuck cuek cuer cues cufc cuff cuk- cuke cupe cupp cupr cups cure curf curr curs cusk cusp cuss cusu eccc ecce ecef eces ecfc ecfr ecfs ecks ecpp ecrc ecrf ecrr ecru ecsc ecse ecsp ecss ecsu ecus eecs eeee eees eefe eeke eeks eeps eerc eers eese eesk efes effs efke ekek eker ekes ekfc ekpe ekur epcc epec epee eper epes epfc eppc eppp epps eprp eprs epsc epsf epsp epss epus ercc erce ercp erec erer eres erfc erfs erke erks erpe erps errc erre errs erse eruc erur erus esce escr escs escu esee esek eser eses esfp esfs eske esks esku espc espe espp esps esse essp essu esuf esus euer eufc eur- eurc eure euse f--k fccf fccp fces fcps fcsc fcuk fcup fece feck feek feer fees fefc fefe feff feke fepc feps ferc fere ferk ferr fers feru fese fess feus ffcc ffee ffff ffps ffrr ffss fp-c fpcc fprf frcc frcp free frep fres frfc frps frsc frue fscc fsck fsec fspc fspf fssc fssf fssp fuc- fuck fufc fuff fufu fuke fukk fuku fur- fure furr furs fusc fuse fusk fuss fusu kccc kcck kccr kccu kcec kcee kcep kceu kcfc kcfp kckc kckf kckk kckr kcpc kcpr kcps kcpu kcrc kcrp kcrr kcrs kcru kcsc kcse kcsf kcsp kcsr kcss kcsu kcue kcuf kcuk kcup keck kecr keef keek keep keer kees kefc keff kefr kefs kekc keke keks keku kep- kepc kepe keps kepu ker- kerc kere kerf kerk kerp kerr kers keru kesc kesk kesp kesr kess keup keur keus kfcf kfcr kfcs kfer kfff kffk kfpr kfrc kfre kfrp kfrr kfrs kfru kfse kfsk kfsp kfsr kkck kkcr kkcs kkfr kkfs kkkk kkpc kkpk kkps kkrc kkre kkrf kkrk kkrr kkrs kkse kksf kksp kksr kkss kksu kkup kkus kkuu kpcc kpcr kpcs kpek kper kpfc kpfk kpfr kpke kpkk kpkr kppc kppk kppp kppr kprc kpre kprf kprk kprp kprr kprs kpru kpsc kpsf kpsp kpsu kpur kpus krcc krce krcs krcu krec kree kref krek kres kreu krfc krfe krff krfp krfs krkc krke krkk krkr krks krku krpr krps krpu krrc krre krrf krrk krrr krrs krsc krse krsf krsk krsr krss krsu kruc krue kruf kruk krup krur ksce ksck kscr kscs kscu ksec ksee ksek ksep kser ksfc ksfe ksfr kske kskf kskk kskr ksks ksku kspc kspe kspk kspr ksps ksrf ksrp ksrr ksrs ksse kssr ksss kssu ksue ksup ksuu kucc kuce kucp kucr kuek kues kueu kufc kuff kufr kuke kukk kuks kuku kupe kupr kups kupu kure kurk kurr kurs kuru kusc kusf kusp kusu kuuk kuur kuuu pccc pcce pccs pcep pcer pcfc pcks pcpp pcps pcrc pcre pcrf pcse pece peck pecr pecs peec peek peep peer pees pefc peff pefs peke pekk pepe peps per- perc pere perf perk perp perr pers peru pese pess pesu peur pfce pfcs pfff pffr pfkp pfps pkcs ppcc ppcs pper pppp ppps pprc pprf ppru ppsf ppss ppur prcc prcf prcp prcs pre- prec pree pref prek prep pres preu prfc prfs prps prrs prsc prse prss prue pruf prus pruu pscu psec psfk psfs pspp pspr psps psrk psrp pssc psse pu-e puce puck puer pueu puff puke puku pupe pups pupu pur- pure purp purr purs puru pusk puss puuc rccc rccs rcep rcfc rcps rcsc rcss recc rece reck recp recr recs recu reef reek reep rees refe reff refr refs refu reke reks repe repp repr reps repu rere rers reru rese resp ress reue reuf reuk reup reus reuu rfef rffc rkkf rkss rpcs rpfc rpps rrfc rrrr rrsp rscc rscs rsee rsfc rspk rsps rsre ruce ruck ruer rues rufc rufe ruff ruke rukk ruku rupe rupp rurc rure rurp rurs ruru ruse rusk russ rusu sccc scce sccp sccs scec scee scep scer scfc scfe sck- scpe scps scr- scrc scre scrs scsc scsr scsu scup scur se-c se-e se-f se-k se-s se-u sec- secc sece seck secr secs secu seec seef seek seep seer sees seeu seff seke sekk seku sepe sepp sepr seps sepu serc sere serf serk serp serr sers seru sesc sese sess seur sfcc sfcs sfer sffc sfpc sfrc sfss sfsu skee skep sker skes skfc skpc skss skue skup skur spcc spcs spec spee spef spek sper spes spfc spfs spke spkr sppf spps sprs spse spsp spss spue spur spus srcc srec sres srfc srpc srps srsp sscc ssce sscp sscs ssec ssee ssep sses ssfc ssfp sspc sspe sspf ssps ssrc ssrs sssc sssf ssss suc- succ suck sucr sucs suee suer sues sueu suf- sufc suff sufr sufs sufu suke suks suku sup- supe supp supr sups sur- surc sure surf surp surr surs suru sus- suse susk susp suss susu suus u-rp uccp uces ucrc ucsc ucsf ucsu uers uess ufcu ufer uffe ufuk ukcc ukek ukes ukeu ukps ukrc uksc ukup ukur upcs uppc uppe uppp uppu upsc upse upup ure- ures urfe urff urke urre urse urss ursu uruk urup urur urus us-k uscc usce uscf uscs usee usef user uses usfc usfs uske uspc uspp usps ussc usse ussf ussr usss ussu usus uucp uuuu