You are given a code:

def main_solution(x):
    return func_20(func_15(x), func_5('wekhwq', 'gydd'))

Can you predict the output of `main_solution("vcracpk")` 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": "vcracpk"}, "ref_output": "\u00abgvy\u00bbd\u00abdcw\u00bbe\u00abkrh\u00bbw\u00abqa\u00bb\u00abc\u00bb\u00abp\u00bb\u00abk\u00bb", "ref_code": "def main_solution(x):\n    return func_20(func_15(x), func_5('wekhwq', 'gydd'))", "funcname": "main_solution"}
rule