Task: Program Execution
Input (English): 4, 8, ['J', '5659', 'c', '6199', '4667', 'P', '7837', '6013', 'N', '5047', 'b', '8627', 'W', 'A', 'O', 'l', '1977', 'Y', '4853', 'B', 'L', 'L', 'F']
Output (English): 6199, 8627, B