You are given a code:

def main_solution(x):
    return func_9('fxqwfw')

Can you predict the output of `main_solution("wxfmllp")` 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": "wxfmllp"}, "ref_output": "fxqwfwwfwqxf", "ref_code": "def main_solution(x):\n    return func_9('fxqwfw')", "funcname": "main_solution"}
rule