Task: Program Execution
Input (English): 1, 8, ['1609', 'x', 'v', '8357', '1435', 'U', 'L', 'm', 'J', '8367', 'U', 'K', 'F', 'h', '887', '2075', '4671', '1645', 'd', 'z', '7625', 'Y']
Output (English): 1609, J, 4671