You are given a code:

def main_solution(x):
    return func_20(('rom' + 'wqrd'), func_15('ock'))

Can you predict the output of `main_solution("adsbhkvf")` 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": "adsbhkvf"}, "ref_output": "r\u00aboom\u00bbw\u00abqcr\u00bbd\u00abk\u00bb", "ref_code": "def main_solution(x):\n    return func_20(('rom' + 'wqrd'), func_15('ock'))", "funcname": "main_solution"}
rule