Task: Program Execution
Input (English): 8, 21, ['9033', '8291', '9515', 'P', '9493', 'U', '9807', 'H', 'W', '7081', '7591', 'S', '491', 'N', '9001', 'B', 'Q', '9969', 'K', 'z', '7459', 'a', 'F']
Output (English): 9547zK9699QB1009N194S19571807WH