Task: Program Execution
Input (English): 9, 19, ['I', 't', '3515', '6757', 'r', 'G', '6249', 'y', 't', '507', '9655', 'l', '4041', 'y', '8359', 'a', '9217', 'u', 'd', '1613']
Output (English): du7129a9538y1404l5569705t