Task: Program Execution
Input (English): 6, x, t, m, 9, 6
Output (English): [['6', 'x', 't', 'm', '9'], ['6', 'x', 't', 'm', '6'], ['6', 'x', 't', '9', '6'], ['6', 'x', 'm', '9', '6'], ['6', 't', 'm', '9', '6'], ['x', 't', 'm', '9', '6']]