Task: Program Execution
Input (English): 0, e, 9, O, 9, r
Output (English): [['0', 'e', '9', 'O', '9'], ['0', 'e', '9', 'O', 'r'], ['0', 'e', '9', '9', 'r'], ['0', 'e', 'O', '9', 'r'], ['0', '9', 'O', '9', 'r'], ['e', '9', 'O', '9', 'r']]