Task: Program Execution
Input (English): 1, ['1465', 'P', '8445', 'n', 'c', '5405', 'e', '6923', 's', '613', 't', '371', 't', 'U', '8867', 'x', '3045', '4923', '4285', '8753', 'r']
Output (English): 1465