You are given a code:

def main_solution(x):
    return func_20(func_22('tbyg'), func_5('vzn', 'hbgn'))

Can you predict the output of `main_solution("kqo")` 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": "kqo"}, "ref_output": "thbbyggnvzn", "ref_code": "def main_solution(x):\n    return func_20(func_22('tbyg'), func_5('vzn', 'hbgn'))", "funcname": "main_solution"}
rule