You are given a code:

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

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