You are given a code:

def main_solution(x):
    return func_20(func_20('ozb', 'kvkeq'), ('wea' + 'uzzrg'))

Can you predict the output of `main_solution("kktkyo")` 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": "kktkyo"}, "ref_output": "owkezavubzkzerqg", "ref_code": "def main_solution(x):\n    return func_20(func_20('ozb', 'kvkeq'), ('wea' + 'uzzrg'))", "funcname": "main_solution"}
rule