Task: Program Execution
Input (English): 7, 8, ['7351', '2661', 'b', 'r', '8681', '6519', '6343', 'Z', '3227', 'K', '9877', 'L', '4519', '8371', '4245', '5799', 'G', '8909', 'L', '7975', '765', '4177']
Output (English): 6343Z