Task: Program Execution
Input (English): 13, 18, ['8469', '8595', '4801', 'x', 'r', '1645', '4319', 'q', 'v', 'B', 'd', 'P', 'M', '399', '9461', 'U', 'b', 'V', 'V']
Output (English): V, b, U, 9461, 399, M