You are given a code:

def main_solution(x):
    return func_20(func_15(x), func_1('jhagyy', 4))

Can you predict the output of `main_solution("nzeexghxwz")` 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": "nzeexghxwz"}, "ref_output": "\u00abjnh\u00bba\u00abgzy\u00bby\u00abjeh\u00bba\u00abgey\u00bby\u00abjxh\u00bba\u00abggy\u00bby\u00abjhh\u00bba\u00abgxy\u00bby\u00abw\u00bb\u00abz\u00bb", "ref_code": "def main_solution(x):\n    return func_20(func_15(x), func_1('jhagyy', 4))", "funcname": "main_solution"}
rule