Task: Program Execution
Input (English): 6, 14, ['4135', 'L', '549', '6097', 's', 'J', '5909', 'I', '7455', 'W', '9521', '5039', '915', 'u', '7543', '3113', '5879', 'F', '2201', 'a', 'U', '1399', 'l', '4669', 'Y', '3471', '3751']
Output (English): J5909I7455W95215039915u