You are given a code:

def main_solution(x):
    return ('ddd' + 'zmibkk')

Can you predict the output of `main_solution("kzgwkouh")` 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": "kzgwkouh"}, "ref_output": "dddzmibkk", "ref_code": "def main_solution(x):\n    return ('ddd' + 'zmibkk')", "funcname": "main_solution"}
rule