You are given a code:

def main_solution(x):
    return func_5((x + 'ruy'), 'sk')

Can you predict the output of `main_solution("nsazbmzvpz")` 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": "nsazbmzvpz"}, "ref_output": "sknsazbmzvpzruy", "ref_code": "def main_solution(x):\n    return func_5((x + 'ruy'), 'sk')", "funcname": "main_solution"}
rule