Task: Program Execution
Input (English): 9, a, 6, O, 0, 4
Output (English): [['9', 'a', '6', 'O', '0'], ['9', 'a', '6', 'O', '4'], ['9', 'a', '6', '0', '4'], ['9', 'a', 'O', '0', '4'], ['9', '6', 'O', '0', '4'], ['a', '6', 'O', '0', '4']]