Task: Program Execution
Input (English): 8, 13, ['Q', '7315', 'v', 'i', 'l', '5657', '5517', '6897', 'u', '4925', '9437', '2499', 'R', '4207', '937', '6043', '6515', '3777']
Output (English): R, 2499, 9437, 4925, u, 6897