You are given a code:

def main_solution(x):
    return func_20(func_15('bsgw'), func_9('klnfj'))

Can you predict the output of `main_solution("lltjbsnij")` 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": "lltjbsnij"}, "ref_output": "\u00abkbl\u00bbn\u00abfsj\u00bbj\u00abfgn\u00bbl\u00abkw\u00bb", "ref_code": "def main_solution(x):\n    return func_20(func_15('bsgw'), func_9('klnfj'))", "funcname": "main_solution"}
rule