You are given a code:

def main_solution(x):
    return func_20(func_15('udkpo'), func_20(x, 'qqai'))

Can you predict the output of `main_solution("jbqmvbxbep")` 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": "jbqmvbxbep"}, "ref_output": "\u00abjuq\u00bbb\u00abqdq\u00bba\u00abmki\u00bbv\u00abbpx\u00bbb\u00abeop\u00bb", "ref_code": "def main_solution(x):\n    return func_20(func_15('udkpo'), func_20(x, 'qqai'))", "funcname": "main_solution"}
rule