Task: Program Execution
Input (English): 2, 9, ['l', 'Q', 'n', '1733', '5107', '807', 'j', 'Q', 'g', 'M', 'H', 'g', 'i', 'p', 'g', 'f', '7891', '5717', '8373', 'S', '7571']
Output (English): Q, H, S