You are given a code:

def main_solution(x):
    return func_5(func_20('mmw', 'dnhu'), 'xdg')

Can you predict the output of `main_solution("kezaruhe")` 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": "kezaruhe"}, "ref_output": "xdgmdmnwhu", "ref_code": "def main_solution(x):\n    return func_5(func_20('mmw', 'dnhu'), 'xdg')", "funcname": "main_solution"}
rule