You are given a code:

def main_solution(x):
    return (func_15('iniwl') + func_9('agndx'))

Can you predict the output of `main_solution("rqnwbnolsw")` 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": "rqnwbnolsw"}, "ref_output": "\u00abi\u00bb\u00abn\u00bb\u00abi\u00bb\u00abw\u00bb\u00abl\u00bbagndxxdnga", "ref_code": "def main_solution(x):\n    return (func_15('iniwl') + func_9('agndx'))", "funcname": "main_solution"}
rule