You are given a code:

def main_solution(x):
    return func_20(func_15('rasp'), func_5(x, 'eb'))

Can you predict the output of `main_solution("ziprgztgeu")` 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": "ziprgztgeu"}, "ref_output": "\u00aberb\u00bbz\u00abiap\u00bbr\u00abgsz\u00bbt\u00abgpe\u00bbu", "ref_code": "def main_solution(x):\n    return func_20(func_15('rasp'), func_5(x, 'eb'))", "funcname": "main_solution"}
rule