Task: Program Execution
Input (English): [5521, 1069, 'O', 'C', '2617', '2939', 'J', 'B', 'H', 'N', 2117, 'x', 'P', 'W', 5259], ['b', 4317, 2659, 'H', 9681, 'C', '2617', '2939', 'J', 'B', 'H', 'J', 7807]
Output (English): C, 2617, 2939, J, B, H