You are given a code:

def main_solution(x):
    return func_20(func_15('pzhhlr'), func_9('wuzcy'))

Can you predict the output of `main_solution("wjhpiknp")` 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": "wjhpiknp"}, "ref_output": "\u00abwpu\u00bbz\u00abczy\u00bby\u00abchz\u00bbu\u00abwh\u00bb\u00abl\u00bb\u00abr\u00bb", "ref_code": "def main_solution(x):\n    return func_20(func_15('pzhhlr'), func_9('wuzcy'))", "funcname": "main_solution"}
rule