Task: Program Execution
Input (English): 0, e, n, 7, C, O
Output (English): [['0', 'e', 'n', '7', 'C'], ['0', 'e', 'n', '7', 'O'], ['0', 'e', 'n', 'C', 'O'], ['0', 'e', '7', 'C', 'O'], ['0', 'n', '7', 'C', 'O'], ['e', 'n', '7', 'C', 'O']]