You are given a code:

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

Can you predict the output of `main_solution("wrxv")` 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": "wrxv"}, "ref_output": "y\u00abqnz\u00bbm\u00abmgz\u00bbq\u00abyg\u00bb\u00abe\u00bb", "ref_code": "def main_solution(x):\n    return func_20(func_9('yqzm'), func_15('ngge'))", "funcname": "main_solution"}
rule