cutto uctto ctuto tcuto utcto tucto cutto uctto ctuto tcuto utcto tucto cttuo tctuo cttuo tctuo ttcuo ttcuo uttco tutco uttco tutco ttuco ttuco cutot uctot ctuot tcuot utcot tucot cuott ucott coutt ocutt uoctt ouctt ctout tcout cotut octut tocut otcut utoct tuoct uotct outct touct otuct cutot uctot ctuot tcuot utcot tucot cuott ucott coutt ocutt uoctt ouctt ctout tcout cotut octut tocut otcut utoct tuoct uotct outct touct otuct cttou tctou cttou tctou ttcou ttcou ctotu tcotu cottu octtu toctu otctu ctotu tcotu cottu octtu toctu otctu ttocu ttocu totcu ottcu totcu ottcu uttoc tutoc uttoc tutoc ttuoc ttuoc utotc tuotc uottc outtc toutc otutc utotc tuotc uottc outtc toutc otutc ttouc ttouc totuc ottuc totuc ottuc
Note: these 'words' (valid or invalid) are all the permutations of the word cutto. These words are obtained by scrambling the letters in cutto.