You are given a code:

def main_solution(x):
    return func_20(func_15('tolzd'), func_20('rynw', 'acrnuf'))

Can you predict the output of `main_solution("kdyp")` 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": "kdyp"}, "ref_output": "\u00abrta\u00bby\u00abcon\u00bbr\u00abwln\u00bbu\u00abfz\u00bb\u00abd\u00bb", "ref_code": "def main_solution(x):\n    return func_20(func_15('tolzd'), func_20('rynw', 'acrnuf'))", "funcname": "main_solution"}
rule