Task: Program Execution
Input (English): 11, ['3811', 'E', '3549', 'X', '6505', '437', '4587', 'y', '8519', 'u', 'E', 'O', 'd', '2801', 'z', 'x', '9993', '2557', 'u', '4543', '2777', '3019', '4973', 'i', '7751', '5715', 'l', '8441', 'M', '8135', 'z', '517']
Output (English): 3811, O, 4973