You are given a code:

def main_solution(x):
    return func_20(func_15(x), func_20('pwfxk', 'wmh'))

Can you predict the output of `main_solution("pdcltokav")` 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": "pdcltokav"}, "ref_output": "\u00abppw\u00bbw\u00abmdf\u00bbh\u00abxck\u00bb\u00abl\u00bb\u00abt\u00bb\u00abo\u00bb\u00abk\u00bb\u00aba\u00bb\u00abv\u00bb", "ref_code": "def main_solution(x):\n    return func_20(func_15(x), func_20('pwfxk', 'wmh'))", "funcname": "main_solution"}
rule