Task: Program Execution
Input (English): c, 1, 6, W, A, 1, F
Output (English): [['c', '1', '6', 'W', 'A', '1'], ['c', '1', '6', 'W', 'A', 'F'], ['c', '1', '6', 'W', '1', 'F'], ['c', '1', '6', 'A', '1', 'F'], ['c', '1', 'W', 'A', '1', 'F'], ['c', '6', 'W', 'A', '1', 'F'], ['1', '6', 'W', 'A', '1', 'F']]