You are given a code:

def main_solution(x):
    return func_20(func_5('pqxsg', 'nn'), ('mynjiv' + 'egyi'))

Can you predict the output of `main_solution("mgndsekadt")` 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": "mgndsekadt"}, "ref_output": "nmnypnqjxisvgegyi", "ref_code": "def main_solution(x):\n    return func_20(func_5('pqxsg', 'nn'), ('mynjiv' + 'egyi'))", "funcname": "main_solution"}
rule