Task: Program Execution
Input (English): 10, 12, ['P', 'R', 'B', '4925', '7859', 'q', '3741', '8177', '4927', 'I', '9453', 'Q', '6881', '1633', 'E', '1735', '6911', '2997', 'H', 'r', '3389', '6457']
Output (English): Q9453I