You are given a code:

def main_solution(x):
    return func_20(func_20(x, 'hnqw'), func_15(x))

Can you predict the output of `main_solution("dzsuzuavln")` 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": "dzsuzuavln"}, "ref_output": "d\u00abhdz\u00bbn\u00abszq\u00bbu\u00abwsz\u00bbu\u00abauv\u00bbl\u00abnz\u00bb\u00abu\u00bb\u00aba\u00bb\u00abv\u00bb\u00abl\u00bb\u00abn\u00bb", "ref_code": "def main_solution(x):\n    return func_20(func_20(x, 'hnqw'), func_15(x))", "funcname": "main_solution"}
rule