Task: Program Execution
Input (English): 12, 14, ['F', 'r', '8843', 'H', 'q', '3271', 'O', '6201', '2341', 'L', 'E', '4577', 'v', 'U', 'M', '5331', '333', '5905', 'L', 'c']
Output (English): U, v, 4577