Task: Program Execution
Input (English): 18, 20, ['6907', 'q', 'Y', '6647', 'o', 'J', '6479', '3585', '2265', '3515', '9353', 'Z', '5359', '5717', '4389', '5753', '9', 'G', 'l', '7003', 'p']
Output (English): 3007lG