Task: Program Execution
Input (English): 5, L, 7, 2, 0, 1
Output (English): [['5', 'L', '7', '2', '0'], ['5', 'L', '7', '2', '1'], ['5', 'L', '7', '0', '1'], ['5', 'L', '2', '0', '1'], ['5', '7', '2', '0', '1'], ['L', '7', '2', '0', '1']]