You are given a code:

def main_solution(x):
    return func_20(func_15('xqflx'), func_20('vggswg', x))

Can you predict the output of `main_solution("rhybuxnt")` 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": "rhybuxnt"}, "ref_output": "\u00abvxr\u00bbg\u00abhqg\u00bby\u00absfb\u00bbw\u00abulg\u00bbx\u00abnxt\u00bb", "ref_code": "def main_solution(x):\n    return func_20(func_15('xqflx'), func_20('vggswg', x))", "funcname": "main_solution"}
rule