Task: Program Execution
Input (English): 20, 21, ['1515', '5869', '8059', 'f', '3033', '5085', '9111', '4337', 'r', '305', '7645', 'y', '5789', 'g', 'w', 's', 'M', 'y', '7347', '751', 'F', 'r', '1615', '8169', '607', 'a', '5185', 'M']
Output (English): 751, F