Task: Program Execution
Input (English): 15, ['a', 'm', '4335', '1527', 'K', '5189', 'Q', 'W', '5975', 'S', '2421', '9569', '3711', '7571', '8121', 'm', '3223', 'P', '9169', '8505', 'p', '3109', 's', 'O', 'X', '2257', 'A', '4905', '7557', 'w', 'M', '5523', '2753', '3071', '1697', '6439', 'J', '8887']
Output (English): a, m, M