You are given a code:

def main_solution(x):
    return func_20(func_15(x), func_3('aebw'))

Can you predict the output of `main_solution("ygvhtkwke")` 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": "ygvhtkwke"}, "ref_output": "\u00abayb\u00bbe\u00abwg\u00bb\u00abv\u00bb\u00abh\u00bb\u00abt\u00bb\u00abk\u00bb\u00abw\u00bb\u00abk\u00bb\u00abe\u00bb", "ref_code": "def main_solution(x):\n    return func_20(func_15(x), func_3('aebw'))", "funcname": "main_solution"}
rule