Task: Program Execution
Input (English): 6, 3, O, 6, e, P, k
Output (English): [['6', '3', 'O', '6', 'e', 'P'], ['6', '3', 'O', '6', 'e', 'k'], ['6', '3', 'O', '6', 'P', 'k'], ['6', '3', 'O', 'e', 'P', 'k'], ['6', '3', '6', 'e', 'P', 'k'], ['6', 'O', '6', 'e', 'P', 'k'], ['3', 'O', '6', 'e', 'P', 'k']]