Task: Program Execution
Input (English): n, 7, c, 1, w, 7, 2
Output (English): [['n', '7', 'c', '1', 'w', '7'], ['n', '7', 'c', '1', 'w', '2'], ['n', '7', 'c', '1', '7', '2'], ['n', '7', 'c', 'w', '7', '2'], ['n', '7', '1', 'w', '7', '2'], ['n', 'c', '1', 'w', '7', '2'], ['7', 'c', '1', 'w', '7', '2']]