You are given a code:

def main_solution(x):
    return func_20(func_15('rfrx'), func_9('mipgu'))

Can you predict the output of `main_solution("wjux")` 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": "wjux"}, "ref_output": "\u00abmri\u00bbp\u00abgfu\u00bbu\u00abgrp\u00bbi\u00abmx\u00bb", "ref_code": "def main_solution(x):\n    return func_20(func_15('rfrx'), func_9('mipgu'))", "funcname": "main_solution"}
rule