You are given a code:

def main_solution(x):
    return func_20(func_15('axsuen'), func_5('rgiwet', 'ndhx'))

Can you predict the output of `main_solution("uxbv")` 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": "uxbv"}, "ref_output": "\u00abnad\u00bbh\u00abxxr\u00bbg\u00abisw\u00bbe\u00abtu\u00bb\u00abe\u00bb\u00abn\u00bb", "ref_code": "def main_solution(x):\n    return func_20(func_15('axsuen'), func_5('rgiwet', 'ndhx'))", "funcname": "main_solution"}
rule