Task: Program Execution
Input (English): 8, 14, ['x', '4321', 'n', 'q', 'I', 'W', '199', 'Q', '6457', 'L', '139', 'O', '489', 'E', '2931', '6745', 'd', 'u', '1281', 'y']
Output (English): E, 489, O, 139, L, 6457, Q