You are given a code:

def main_solution(x):
    return func_20('wfkain', 'gwer')

Can you predict the output of `main_solution("gsedcwjd")` 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": "gsedcwjd"}, "ref_output": "wgfwkearin", "ref_code": "def main_solution(x):\n    return func_20('wfkain', 'gwer')", "funcname": "main_solution"}
rule