You are given a code:

def main_solution(x):
    return func_20(func_15('uqyylg'), func_20('uphk', x))

Can you predict the output of `main_solution("bdpxymy")` 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": "bdpxymy"}, "ref_output": "\u00abuub\u00bbp\u00abdqh\u00bbp\u00abkyx\u00bby\u00abmyy\u00bb\u00abl\u00bb\u00abg\u00bb", "ref_code": "def main_solution(x):\n    return func_20(func_15('uqyylg'), func_20('uphk', x))", "funcname": "main_solution"}
rule