Task: Program Execution
Input (English): 13, 14, ['j', '8421', 'l', 'U', 'b', '2445', 'H', 'N', 's', '9059', '5001', 'w', 'U', '5133', '7199', '8503', 'x', 'k', 'Y', '2877', 'p', '7717', 'k', '5321', '7111', '7989', 'U', '5827']
Output (English): U5133