You are given a code:

def main_solution(x):
    return func_20(func_17(x), func_15('sjzk'))

Can you predict the output of `main_solution("ttanodpuyo")` 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": "ttanodpuyo"}, "ref_output": "o\u00abysu\u00bbp\u00abdjo\u00bbn\u00abazt\u00bbt\u00abk\u00bb", "ref_code": "def main_solution(x):\n    return func_20(func_17(x), func_15('sjzk'))", "funcname": "main_solution"}
rule