csecu scecu cescu ecscu seccu esccu csceu scceu ccseu ccseu scceu csceu cecsu eccsu ccesu ccesu eccsu cecsu seccu esccu scecu csecu ecscu cescu cseuc sceuc cesuc ecsuc secuc escuc csuec scuec cusec ucsec sucec uscec ceusc ecusc cuesc ucesc eucsc uecsc seucc esucc suecc usecc euscc uescc cscue sccue ccsue ccsue sccue cscue csuce scuce cusce ucsce succe uscce ccuse ccuse cucse uccse cucse uccse scuce csuce succe uscce cusce ucsce cecus eccus cceus cceus eccus cecus ceucs ecucs cuecs ucecs euccs ueccs ccues ccues cuces ucces cuces ucces ecucs ceucs euccs ueccs cuecs ucecs secuc escuc sceuc cseuc ecsuc cesuc seucc esucc suecc usecc euscc uescc scuec csuec sucec uscec cusec ucsec ecusc ceusc eucsc uecsc cuesc ucesc
Note: these 'words' (valid or invalid) are all the permutations of the word csecu. These words are obtained by scrambling the letters in csecu.