Task: Program Execution
Input (English): 4, 5, ['5721', 'C', 'r', '4641', '5895', '5389', '1531', 'l', '3711', 'H', 'p', 'M', '5553', '1635', '5041', 'W', '4263', 'w', 'f', 'v', 'Q']
Output (English): 4641, 3711, 1635, f