You are given a code:

def main_solution(x):
    return ('zmcncl' + 'tmzs')

Can you predict the output of `main_solution("mveogyybjf")` 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": "mveogyybjf"}, "ref_output": "zmcncltmzs", "ref_code": "def main_solution(x):\n    return ('zmcncl' + 'tmzs')", "funcname": "main_solution"}
rule