You are given a code:

def main_solution(x):
    return func_20(func_15(x), ('xkw' + 'pcdgk'))

Can you predict the output of `main_solution("keuydeopv")` 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": "keuydeopv"}, "ref_output": "\u00abxkk\u00bbw\u00abpec\u00bbd\u00abguk\u00bb\u00aby\u00bb\u00abd\u00bb\u00abe\u00bb\u00abo\u00bb\u00abp\u00bb\u00abv\u00bb", "ref_code": "def main_solution(x):\n    return func_20(func_15(x), ('xkw' + 'pcdgk'))", "funcname": "main_solution"}
rule