circs icrcs crics rcics irccs riccs cicrs iccrs ccirs ccirs iccrs cicrs crcis rccis ccris ccris rccis crcis irccs riccs icrcs circs rcics crics cirsc icrsc crisc rcisc ircsc ricsc cisrc icsrc csirc scirc iscrc sicrc crsic rcsic csric scric rscic srcic irscc riscc isrcc sircc rsicc sricc cicsr iccsr ccisr ccisr iccsr cicsr ciscr icscr csicr scicr isccr siccr ccsir ccsir cscir sccir cscir sccir icscr ciscr isccr siccr csicr scicr crcsi rccsi ccrsi ccrsi rccsi crcsi crsci rcsci csrci scrci rscci srcci ccsri ccsri cscri sccri cscri sccri rcsci crsci rscci srcci csrci scrci ircsc ricsc icrsc cirsc rcisc crisc irscc riscc isrcc sircc rsicc sricc icsrc cisrc iscrc sicrc csirc scirc rcsic crsic rscic srcic csric scric
Note: these 'words' (valid or invalid) are all the permutations of the word circs. These words are obtained by scrambling the letters in circs.