You are given a code:

def main_solution(x):
    return func_3((x + 'eweutj'))

Can you predict the output of `main_solution("cslokoj")` 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": "cslokoj"}, "ref_output": "ceejjkloostuw", "ref_code": "def main_solution(x):\n    return func_3((x + 'eweutj'))", "funcname": "main_solution"}
rule