Task: Program Execution
Input (English): 19, 20, ['8165', 'g', '8291', '6875', '6361', 'S', '9931', 'D', 'C', 'Z', '1821', '5677', '8365', 'S', '519', '2721', '2997', '547', '2335', '8421']
Output (English): 2335, 8421