Task: Program Execution
Input (English): 11, 13, ['a', '8057', 'X', 'M', 'R', 'q', '3809', '3231', '1695', 'e', '6809', '519', 'L', '4533', '2783', '4013', '4173', '6853', '5327']
Output (English): 6809, 519, L