You are given a code:

def main_solution(x):
    return func_20(func_15('uoqog'), func_9('yegwyx'))

Can you predict the output of `main_solution("qnxfws")` 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": "qnxfws"}, "ref_output": "\u00abyue\u00bbg\u00abwoy\u00bbx\u00abxqy\u00bbw\u00abgoe\u00bby\u00abg\u00bb", "ref_code": "def main_solution(x):\n    return func_20(func_15('uoqog'), func_9('yegwyx'))", "funcname": "main_solution"}
rule