You are given a code:

def main_solution(x):
    return func_9('trln')

Can you predict the output of `main_solution("xdvjbzjx")` 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": "xdvjbzjx"}, "ref_output": "trlnnlrt", "ref_code": "def main_solution(x):\n    return func_9('trln')", "funcname": "main_solution"}
rule