Task: Program Execution
Input (English): 21, 21, ['C', '9753', 'A', '2263', 'c', '9587', 'z', 'b', '3431', 'j', '6013', 'L', 'p', '3599', '3039', 'I', '3803', '5707', '9957', '6499', 'Q', '6739']
Output (English): Q