You are given a code:

def main_solution(x):
    return ('dzixwg' + 'mwef')

Can you predict the output of `main_solution("fsfmyg")` 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": "fsfmyg"}, "ref_output": "dzixwgmwef", "ref_code": "def main_solution(x):\n    return ('dzixwg' + 'mwef')", "funcname": "main_solution"}
rule