Task: Program Execution
Input (English): 19, 21, ['c', 'B', 'P', '7319', 'G', '2695', 'T', 'L', 'v', '441', 'B', 'E', '4409', '6351', '1833', 'e', 'V', 'h', 'W', 'm', '3409', 'l', 'u', 'F', '5939', '2469']
Output (English): Wm3409