csrse scrse crsse rcsse srcse rscse cssre scsre cssre scsre sscre sscre crsse rcsse csrse scrse rscse srcse srsce rssce ssrce ssrce rssce srsce csres scres crses rcses srces rsces csers scers cesrs ecsrs secrs escrs cress rcess cerss ecrss recss ercss srecs rsecs sercs esrcs rescs erscs csser scser csser scser sscer sscer csesr scesr cessr ecssr secsr escsr csesr scesr cessr ecssr secsr escsr ssecr ssecr sescr esscr sescr esscr crses rcses csres scres rsces srces cress rcess cerss ecrss recss ercss csers scers cesrs ecsrs secrs escrs rsecs srecs rescs erscs sercs esrcs srsec rssec ssrec ssrec rssec srsec sresc rsesc sersc esrsc ressc erssc sserc sserc sesrc essrc sesrc essrc rsesc sresc ressc erssc sersc esrsc
Note: these 'words' (valid or invalid) are all the permutations of the word csrse. These words are obtained by scrambling the letters in csrse.