Task: Program Execution
Input (English): 3, 3, ['S', '2193', 'B', 'y', 'h', 'G', '9461', 'I', 'Y', 'B', 'u', '6327', '417', '8565', 'x', '9045', 'C', '2959', '6203', 'E']
Output (English): B