Task: Program Execution
Input (English): 14, 18, ['r', '3745', 'Q', '5471', '7839', 'U', 'i', 'Z', 'c', '9787', '4049', 'l', '2067', 's', 'z', '2513', '7835', '2179', '403']
Output (English): 217978352513zs