You are given a code:

def main_solution(x):
    return func_20(func_3('nwpzse'), func_20('nfyprn', 'rhjbls'))

Can you predict the output of `main_solution("qrbr")` 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": "qrbr"}, "ref_output": "ennrpfshwyzjpbrlns", "ref_code": "def main_solution(x):\n    return func_20(func_3('nwpzse'), func_20('nfyprn', 'rhjbls'))", "funcname": "main_solution"}
rule