Task: Program Execution
Input (English): n, p, D, U, 4, 7
Output (English): [['n', 'p', 'D', 'U', '4'], ['n', 'p', 'D', 'U', '7'], ['n', 'p', 'D', '4', '7'], ['n', 'p', 'U', '4', '7'], ['n', 'D', 'U', '4', '7'], ['p', 'D', 'U', '4', '7']]