You are given a code:

def main_solution(x):
    return func_20('zsvvfy', 'suyrsn')

Can you predict the output of `main_solution("lpbznirspe")` 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": "lpbznirspe"}, "ref_output": "zssuvyvrfsyn", "ref_code": "def main_solution(x):\n    return func_20('zsvvfy', 'suyrsn')", "funcname": "main_solution"}
rule