You are given a code:

def main_solution(x):
    return func_20(func_9('xutbfe'), func_15('lpd'))

Can you predict the output of `main_solution("mmin")` 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": "mmin"}, "ref_output": "x\u00abult\u00bbb\u00abfpe\u00bbe\u00abfdb\u00bbtux", "ref_code": "def main_solution(x):\n    return func_20(func_9('xutbfe'), func_15('lpd'))", "funcname": "main_solution"}
rule