You are given a code:

def main_solution(x):
    return ('gdq' + 'snb')

Can you predict the output of `main_solution("zhpws")` 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": "zhpws"}, "ref_output": "gdqsnb", "ref_code": "def main_solution(x):\n    return ('gdq' + 'snb')", "funcname": "main_solution"}
rule