cusper ucsper csuper scuper uscper sucper cupser ucpser cpuser pcuser upcser pucser cspuer scpuer cpsuer pcsuer spcuer pscuer uspcer supcer upscer puscer spucer psucer cusepr ucsepr csuepr scuepr uscepr sucepr cuespr ucespr ceuspr ecuspr uecspr eucspr cseupr sceupr cesupr ecsupr secupr escupr usecpr suecpr uescpr euscpr seucpr esucpr cupesr ucpesr cpuesr pcuesr upcesr pucesr cuepsr ucepsr ceupsr ecupsr uecpsr eucpsr cpeusr pceusr cepusr ecpusr pecusr epcusr upecsr puecsr uepcsr eupcsr peucsr epucsr cspeur scpeur cpseur pcseur spceur psceur csepur scepur cespur ecspur secpur escpur cpesur pcesur cepsur ecpsur pecsur epcsur specur psecur sepcur espcur pescur epscur uspecr supecr upsecr pusecr spuecr psuecr usepcr suepcr uespcr euspcr seupcr esupcr upescr puescr uepscr eupscr peuscr epuscr speucr pseucr sepucr espucr pesucr epsucr cuspre ucspre csupre scupre uscpre sucpre cupsre ucpsre cpusre pcusre upcsre pucsre cspure scpure cpsure pcsure spcure pscure uspcre supcre upscre puscre spucre psucre cusrpe ucsrpe csurpe scurpe uscrpe sucrpe curspe ucrspe cruspe rcuspe urcspe rucspe csrupe scrupe crsupe rcsupe srcupe rscupe usrcpe surcpe urscpe ruscpe srucpe rsucpe cuprse ucprse cpurse pcurse upcrse pucrse curpse ucrpse crupse rcupse urcpse rucpse cpruse pcruse crpuse rcpuse prcuse rpcuse uprcse purcse urpcse rupcse prucse rpucse csprue scprue cpsrue pcsrue spcrue pscrue csrpue scrpue crspue rcspue srcpue rscpue cprsue pcrsue crpsue rcpsue prcsue rpcsue sprcue psrcue srpcue rspcue prscue rpscue usprce suprce upsrce pusrce spurce psurce usrpce surpce urspce ruspce srupce rsupce uprsce pursce urpsce rupsce prusce rpusce spruce psruce srpuce rspuce prsuce rpsuce cuserp ucserp csuerp scuerp uscerp sucerp cuesrp ucesrp ceusrp ecusrp uecsrp eucsrp cseurp sceurp cesurp ecsurp securp escurp usecrp suecrp uescrp euscrp seucrp esucrp cusrep ucsrep csurep scurep uscrep sucrep cursep ucrsep crusep rcusep urcsep rucsep csruep scruep crsuep rcsuep srcuep rscuep usrcep surcep urscep ruscep srucep rsucep cuersp ucersp ceursp ecursp uecrsp eucrsp curesp ucresp cruesp rcuesp urcesp rucesp cerusp ecrusp creusp rceusp ercusp recusp uercsp eurcsp urecsp ruecsp erucsp reucsp cserup scerup cesrup ecsrup secrup escrup csreup screup crseup rcseup srceup rsceup cersup ecrsup cresup rcesup ercsup recsup sercup esrcup srecup rsecup erscup rescup usercp suercp uesrcp eusrcp seurcp esurcp usrecp surecp ursecp rusecp sruecp rsuecp uerscp eurscp urescp ruescp eruscp reuscp serucp esrucp sreucp rseucp ersucp resucp cupers ucpers cpuers pcuers upcers pucers cueprs uceprs ceuprs ecuprs uecprs eucprs cpeurs pceurs cepurs ecpurs pecurs epcurs upecrs puecrs uepcrs eupcrs peucrs epucrs cupres ucpres cpures pcures upcres pucres curpes ucrpes crupes rcupes urcpes rucpes cprues pcrues crpues rcpues prcues rpcues uprces purces urpces rupces pruces rpuces cuerps ucerps ceurps ecurps uecrps eucrps cureps ucreps crueps rcueps urceps ruceps cerups ecrups creups rceups ercups recups uercps eurcps urecps ruecps erucps reucps cperus pcerus ceprus ecprus pecrus epcrus cpreus pcreus crpeus rcpeus prceus rpceus cerpus ecrpus crepus rcepus ercpus recpus percus eprcus precus rpecus erpcus repcus upercs puercs ueprcs euprcs peurcs epurcs uprecs purecs urpecs rupecs pruecs rpuecs uerpcs eurpcs urepcs ruepcs erupcs reupcs perucs eprucs preucs rpeucs erpucs repucs csperu scperu cpseru pcseru spceru psceru csepru scepru cespru ecspru secpru escpru cpesru pcesru cepsru ecpsru pecsru epcsru specru psecru sepcru espcru pescru epscru cspreu scpreu cpsreu pcsreu spcreu pscreu csrpeu scrpeu crspeu rcspeu srcpeu rscpeu cprseu pcrseu crpseu rcpseu prcseu rpcseu sprceu psrceu srpceu rspceu prsceu rpsceu cserpu scerpu cesrpu ecsrpu secrpu escrpu csrepu screpu crsepu rcsepu srcepu rscepu cerspu ecrspu crespu rcespu ercspu recspu sercpu esrcpu srecpu rsecpu erscpu rescpu cpersu pcersu ceprsu ecprsu pecrsu epcrsu cpresu pcresu crpesu rcpesu prcesu rpcesu cerpsu ecrpsu crepsu rcepsu ercpsu recpsu percsu eprcsu precsu rpecsu erpcsu repcsu spercu psercu seprcu esprcu pesrcu epsrcu sprecu psrecu srpecu rspecu prsecu rpsecu serpcu esrpcu srepcu rsepcu erspcu respcu perscu eprscu prescu rpescu erpscu repscu usperc superc upserc puserc spuerc psuerc useprc sueprc uesprc eusprc seuprc esuprc upesrc puesrc uepsrc eupsrc peusrc epusrc speurc pseurc sepurc espurc pesurc epsurc usprec suprec upsrec pusrec spurec psurec usrpec surpec urspec ruspec srupec rsupec uprsec pursec urpsec rupsec prusec rpusec spruec psruec srpuec rspuec prsuec rpsuec userpc suerpc uesrpc eusrpc seurpc esurpc usrepc surepc ursepc rusepc sruepc rsuepc uerspc eurspc urespc ruespc eruspc reuspc serupc esrupc sreupc rseupc ersupc resupc upersc puersc ueprsc euprsc peursc epursc upresc puresc urpesc rupesc pruesc rpuesc uerpsc eurpsc urepsc ruepsc erupsc reupsc perusc eprusc preusc rpeusc erpusc repusc speruc pseruc sepruc espruc pesruc epsruc spreuc psreuc srpeuc rspeuc prseuc rpseuc serpuc esrpuc srepuc rsepuc erspuc respuc persuc eprsuc presuc rpesuc erpsuc repsuc
Note: these 'words' (valid or invalid) are all the permutations of the word cusper. These words are obtained by scrambling the letters in cusper.