You are given a code:

def main_solution(x):
    return ('meuj' + 'njeou')

Can you predict the output of `main_solution("msqqy")` 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": "msqqy"}, "ref_output": "meujnjeou", "ref_code": "def main_solution(x):\n    return ('meuj' + 'njeou')", "funcname": "main_solution"}
rule