Task: Program Execution
Input (English): A, n, 7, 9, E, m, 6
Output (English): [['A', 'n', '7', '9', 'E', 'm'], ['A', 'n', '7', '9', 'E', '6'], ['A', 'n', '7', '9', 'm', '6'], ['A', 'n', '7', 'E', 'm', '6'], ['A', 'n', '9', 'E', 'm', '6'], ['A', '7', '9', 'E', 'm', '6'], ['n', '7', '9', 'E', 'm', '6']]