Task: Program Execution
Input (English): n, d, 7, 3, a, N, 4
Output (English): [['n', 'd', '7', '3', 'a', 'N'], ['n', 'd', '7', '3', 'a', '4'], ['n', 'd', '7', '3', 'N', '4'], ['n', 'd', '7', 'a', 'N', '4'], ['n', 'd', '3', 'a', 'N', '4'], ['n', '7', '3', 'a', 'N', '4'], ['d', '7', '3', 'a', 'N', '4']]