You are given a code:

def main_solution(x):
    return func_20(func_15('xauotx'), func_5(x, 'azyo'))

Can you predict the output of `main_solution("fufbslg")` 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": "fufbslg"}, "ref_output": "\u00abaxz\u00bby\u00aboaf\u00bbu\u00abfub\u00bbs\u00ablog\u00bb\u00abt\u00bb\u00abx\u00bb", "ref_code": "def main_solution(x):\n    return func_20(func_15('xauotx'), func_5(x, 'azyo'))", "funcname": "main_solution"}
rule