Task: Program Execution
Input (English): 5, ['M', '8637', 'O', '4519', '4689', 'f', '3623', 'J', '1285', 'Z', '4441', 'q', '6695', '7935', '1293', 'O', '3715', '9543']
Output (English): M, 8637, O, 4519, 4689