You are given a code:

def main_solution(x):
    return func_20(func_15('zzxp'), func_9('oixgf'))

Can you predict the output of `main_solution("tluncngw")` 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": "tluncngw"}, "ref_output": "\u00abozi\u00bbx\u00abgzf\u00bbf\u00abgxx\u00bbi\u00abop\u00bb", "ref_code": "def main_solution(x):\n    return func_20(func_15('zzxp'), func_9('oixgf'))", "funcname": "main_solution"}
rule