You are given a code:

def main_solution(x):
    return ('tuo' + 'eszyex')

Can you predict the output of `main_solution("cdfqco")` 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": "cdfqco"}, "ref_output": "tuoeszyex", "ref_code": "def main_solution(x):\n    return ('tuo' + 'eszyex')", "funcname": "main_solution"}
rule