Task: Program Execution
Input (English): 8, 9, ['2185', 'y', 'N', 'Q', '3453', '5609', '7649', '1663', 'Z', 'y', 'U', 'r', '9393', '2213', '5071', 'B', '5207', '7677', 'B', '8609', '6187', 'p']
Output (English): 1663, Z