You are given a code:

def main_solution(x):
    return ('edbsrc' + 'chgtvl')

Can you predict the output of `main_solution("klhivlxtk")` 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": "klhivlxtk"}, "ref_output": "edbsrcchgtvl", "ref_code": "def main_solution(x):\n    return ('edbsrc' + 'chgtvl')", "funcname": "main_solution"}
rule