You are given a code:

def main_solution(x):
    return ('qkshe' + 'xltst')

Can you predict the output of `main_solution("hnrps")` 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": "hnrps"}, "ref_output": "qkshexltst", "ref_code": "def main_solution(x):\n    return ('qkshe' + 'xltst')", "funcname": "main_solution"}
rule