Task: Program Execution
Input (English): 3, 12, ['2451', '2689', 'S', 'V', '4535', 'G', 'a', '3173', '1175', 'u', '5197', 'O', '5469', 'z', 'z', '3027', '355', 'n', 'Z', 'l']
Output (English): O7915u57113713aG5354VS