You are given a code:

def main_solution(x):
    return ('cuygg' + 'sbgast')

Can you predict the output of `main_solution("qxoikzwfu")` 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": "qxoikzwfu"}, "ref_output": "cuyggsbgast", "ref_code": "def main_solution(x):\n    return ('cuygg' + 'sbgast')", "funcname": "main_solution"}
rule