Task: Program Execution
Input (English): E, 6, l, 8, 1, m
Output (English): [['E', '6', 'l', '8', '1'], ['E', '6', 'l', '8', 'm'], ['E', '6', 'l', '1', 'm'], ['E', '6', '8', '1', 'm'], ['E', 'l', '8', '1', 'm'], ['6', 'l', '8', '1', 'm']]