You are given a code:

def main_solution(x):
    return func_20(func_15('gijuy'), func_9('erzfok'))

Can you predict the output of `main_solution("ncdmsr")` 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": "ncdmsr"}, "ref_output": "\u00abegr\u00bbz\u00abfio\u00bbk\u00abkjo\u00bbf\u00abzur\u00bbe\u00aby\u00bb", "ref_code": "def main_solution(x):\n    return func_20(func_15('gijuy'), func_9('erzfok'))", "funcname": "main_solution"}
rule