You are given a code:

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

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