You are given a code:

def main_solution(x):
    return func_20(func_5('qsuo', 'ex'), func_15('odvwst'))

Can you predict the output of `main_solution("mhfgdhjlq")` 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": "mhfgdhjlq"}, "ref_output": "e\u00abxoq\u00bbs\u00abudo\u00bb\u00abv\u00bb\u00abw\u00bb\u00abs\u00bb\u00abt\u00bb", "ref_code": "def main_solution(x):\n    return func_20(func_5('qsuo', 'ex'), func_15('odvwst'))", "funcname": "main_solution"}
rule