You are given a code:

def main_solution(x):
    return func_20(func_5('pset', 'dygb'), func_15('ujqp'))

Can you predict the output of `main_solution("wezvvav")` 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": "wezvvav"}, "ref_output": "d\u00abyug\u00bbb\u00abpjs\u00bbe\u00abtq\u00bb\u00abp\u00bb", "ref_code": "def main_solution(x):\n    return func_20(func_5('pset', 'dygb'), func_15('ujqp'))", "funcname": "main_solution"}
rule