You are given a code:

def main_solution(x):
    return func_20(func_15('twlcyn'), (x + 'pduhkm'))

Can you predict the output of `main_solution("triknzhry")` 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": "triknzhry"}, "ref_output": "\u00abttr\u00bbi\u00abkwn\u00bbz\u00abhlr\u00bby\u00abpcd\u00bbu\u00abhyk\u00bbm\u00abn\u00bb", "ref_code": "def main_solution(x):\n    return func_20(func_15('twlcyn'), (x + 'pduhkm'))", "funcname": "main_solution"}
rule