You are given a code:

def main_solution(x):
    return ('etn' + 'ytyz')

Can you predict the output of `main_solution("wdiadoypq")` 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": "wdiadoypq"}, "ref_output": "etnytyz", "ref_code": "def main_solution(x):\n    return ('etn' + 'ytyz')", "funcname": "main_solution"}
rule