You are given a code:

def main_solution(x):
    return func_20(func_15(x), func_20('txpt', 'awpme'))

Can you predict the output of `main_solution("rnqqwhzwl")` 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": "rnqqwhzwl"}, "ref_output": "\u00abtra\u00bbx\u00abwnp\u00bbp\u00abtqm\u00bbe\u00abq\u00bb\u00abw\u00bb\u00abh\u00bb\u00abz\u00bb\u00abw\u00bb\u00abl\u00bb", "ref_code": "def main_solution(x):\n    return func_20(func_15(x), func_20('txpt', 'awpme'))", "funcname": "main_solution"}
rule