Task: Program Execution
Input (English): 13, 17, ['3445', '15', 'v', '1831', 'D', '4089', '7675', 'H', '9809', '9331', '899', 'A', 'c', 'v', 'v', '7845', 'U', '3449', '2599', 'I']
Output (English): c, v, v, 7845, U