You are given a code:

def main_solution(x):
    return func_20(func_15('vid'), func_20('jknov', 'qhddeb'))

Can you predict the output of `main_solution("rou")` without writing any code? Please reason and put your final answer in the following json format: {"output": <your output>}, where <your output> should be the final string.
user
{"ref_input": {"x": "rou"}, "ref_output": "\u00abjvq\u00bbk\u00abhin\u00bbd\u00abodd\u00bbveb", "ref_code": "def main_solution(x):\n    return func_20(func_15('vid'), func_20('jknov', 'qhddeb'))", "funcname": "main_solution"}
rule