Task: Program Execution
Input (English): 1, 4, ['2765', 'a', '6965', 'n', 'K', 'D', 'm', '8173', 'I', '5947', '3221', '4181', 'U', '6483', '9049', 'W', 'V', '75', 'A']
Output (English): n5696a5672