Task: Program Execution
Input (English): l, 5, 5, s, f, 2
Output (English): [['l', '5', '5', 's', 'f'], ['l', '5', '5', 's', '2'], ['l', '5', '5', 'f', '2'], ['l', '5', 's', 'f', '2'], ['l', '5', 's', 'f', '2'], ['5', '5', 's', 'f', '2']]