You are given a code:

def main_solution(x):
    return func_20(func_13('hbzgx', '-'), func_15(x))

Can you predict the output of `main_solution("xsnnnpvyee")` 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": "xsnnnpvyee"}, "ref_output": "h\u00ab-xb\u00bb-\u00abzs-\u00bbg\u00ab-nx\u00bb\u00abn\u00bb\u00abn\u00bb\u00abp\u00bb\u00abv\u00bb\u00aby\u00bb\u00abe\u00bb\u00abe\u00bb", "ref_code": "def main_solution(x):\n    return func_20(func_13('hbzgx', '-'), func_15(x))", "funcname": "main_solution"}
rule