You are given a code:

def main_solution(x):
    return func_20(func_15('uibzc'), func_1(x, 3))

Can you predict the output of `main_solution("bijupeasbz")` 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": "bijupeasbz"}, "ref_output": "\u00abbui\u00bbj\u00abuip\u00bbe\u00ababs\u00bbb\u00abzzb\u00bbi\u00abjcu\u00bbpeasbzbijupeasbz", "ref_code": "def main_solution(x):\n    return func_20(func_15('uibzc'), func_1(x, 3))", "funcname": "main_solution"}
rule