You are given a code:

def main_solution(x):
    return func_20(func_15('lvdag'), func_20('wmmkwj', 'yglhcf'))

Can you predict the output of `main_solution("ijh")` 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": "ijh"}, "ref_output": "\u00abwly\u00bbm\u00abgvm\u00bbl\u00abkdh\u00bbw\u00abcaj\u00bbf\u00abg\u00bb", "ref_code": "def main_solution(x):\n    return func_20(func_15('lvdag'), func_20('wmmkwj', 'yglhcf'))", "funcname": "main_solution"}
rule