Task: Program Execution
Input (English): 9, 10, ['8187', 'Q', '8599', '9367', '6965', '8757', '815', 'x', '3891', 'Y', 'r', 'J', '8473', 'K', 'b', '3957', '7491', 'M', 'w', '5359', '4805', 'f', '5903']
Output (English): Y, 3891