You are given a code:

def main_solution(x):
    return func_20(func_20('iufoue', x), func_15('jfcs'))

Can you predict the output of `main_solution("iwbmmeozp")` 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": "iwbmmeozp"}, "ref_output": "i\u00abiju\u00bbw\u00abffb\u00bbo\u00abmcu\u00bbm\u00abese\u00bbozp", "ref_code": "def main_solution(x):\n    return func_20(func_20('iufoue', x), func_15('jfcs'))", "funcname": "main_solution"}
rule