Task: Program Execution
Input (English): 5, f, L, 5, a, 7
Output (English): [['5', 'f', 'L', '5', 'a'], ['5', 'f', 'L', '5', '7'], ['5', 'f', 'L', 'a', '7'], ['5', 'f', '5', 'a', '7'], ['5', 'L', '5', 'a', '7'], ['f', 'L', '5', 'a', '7']]