Task: Program Execution
Input (English): 11, ['5405', 't', 'h', 'W', 'B', 'Z', '8705', '6479', '4505', 'E', '4853', '8515', '8271', '3365', '6485', '4621', '9821', '2377', 'P', '6687', 'x', 'I']
Output (English): 8515, 8271, 3365, 6485, 4621, 9821, 2377, P, 6687, x, I