You are given a code:

def main_solution(x):
    return func_17('nin')

Can you predict the output of `main_solution("hnvmbrhv")` 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": "hnvmbrhv"}, "ref_output": "nin", "ref_code": "def main_solution(x):\n    return func_17('nin')", "funcname": "main_solution"}
rule