You are given a code:

def main_solution(x):
    return ('gdtr' + 'yxvoop')

Can you predict the output of `main_solution("lqhw")` 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": "lqhw"}, "ref_output": "gdtryxvoop", "ref_code": "def main_solution(x):\n    return ('gdtr' + 'yxvoop')", "funcname": "main_solution"}
rule