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