You are given a code:

def main_solution(x):
    return func_20((x + 'bjuly'), func_15('zsui'))

Can you predict the output of `main_solution("iunrxkmkil")` 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": "iunrxkmkil"}, "ref_output": "i\u00abuzn\u00bbr\u00abxsk\u00bbm\u00abkui\u00bbl\u00abbij\u00bbuly", "ref_code": "def main_solution(x):\n    return func_20((x + 'bjuly'), func_15('zsui'))", "funcname": "main_solution"}
rule