You are given a code:

def main_solution(x):
    return func_20(func_15('dgnzhp'), func_20(x, 'vobnd'))

Can you predict the output of `main_solution("eirjctpo")` 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": "eirjctpo"}, "ref_output": "\u00abedv\u00bbi\u00abogr\u00bbb\u00abjnn\u00bbc\u00abdzt\u00bbp\u00aboh\u00bb\u00abp\u00bb", "ref_code": "def main_solution(x):\n    return func_20(func_15('dgnzhp'), func_20(x, 'vobnd'))", "funcname": "main_solution"}
rule