You are given a code:

def main_solution(x):
    return func_20(func_15(x), func_9('zpjsd'))

Can you predict the output of `main_solution("qbsvrhvji")` 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": "qbsvrhvji"}, "ref_output": "\u00abzqp\u00bbj\u00absbd\u00bbd\u00abssj\u00bbp\u00abzv\u00bb\u00abr\u00bb\u00abh\u00bb\u00abv\u00bb\u00abj\u00bb\u00abi\u00bb", "ref_code": "def main_solution(x):\n    return func_20(func_15(x), func_9('zpjsd'))", "funcname": "main_solution"}
rule