You are given a code:

def main_solution(x):
    return func_20(func_9('mibrpk'), func_15('yia'))

Can you predict the output of `main_solution("owofjoum")` 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": "owofjoum"}, "ref_output": "m\u00abiyb\u00bbr\u00abpik\u00bbk\u00abpar\u00bbbim", "ref_code": "def main_solution(x):\n    return func_20(func_9('mibrpk'), func_15('yia'))", "funcname": "main_solution"}
rule