You are given a code:

def main_solution(x):
    return func_20(func_22(x), func_15('uflwsx'))

Can you predict the output of `main_solution("xkiahyhbs")` 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": "xkiahyhbs"}, "ref_output": "x\u00abkui\u00bba\u00abhfy\u00bbh\u00abbl\u00bb\u00abw\u00bb\u00abs\u00bb\u00abx\u00bb", "ref_code": "def main_solution(x):\n    return func_20(func_22(x), func_15('uflwsx'))", "funcname": "main_solution"}
rule