Task: Program Execution
Input (English): 30, 30, ['W', '6241', '1441', '2739', '5789', 'y', '2529', 'f', 'I', '3649', '539', '9513', 'i', '7649', 'X', '9457', 'R', '6009', 'v', '7839', '3257', '7565', '8597', 'K', 'E', 'A', 'M', 'X', 'X', 'O']
Output (English): O