Task: Program Execution
Input (English): 9, 21, ['M', 'P', '8637', 'P', '9363', '8453', '497', '6745', 'B', '8889', 'N', '3241', 'p', 'q', 'q', 'b', '8349', 'h', '3425', 'b', '7517', 'D', '6357', 'F', '5387']
Output (English): 31421