You are given a code:

def main_solution(x):
    return func_20(func_23('bzrlvo', 1), func_20('jfrhwh', 'vbxa'))

Can you predict the output of `main_solution("skksrwj")` 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": "skksrwj"}, "ref_output": "bjzvrflbvrox1hawh", "ref_code": "def main_solution(x):\n    return func_20(func_23('bzrlvo', 1), func_20('jfrhwh', 'vbxa'))", "funcname": "main_solution"}
rule