Task: Program Execution
Input (English): 1, ['R', '3337', 's', '991', '9043', '3429', '8995', 'z', '3115', '697', 'P', 'K', '8441', '1723', 'v', 'y', 'l', '2383', '9597', '6735', '8171', '1865', '6213', '6689']
Output (English): R