You are given a code:

def main_solution(x):
    return func_20(func_15('jibkqw'), func_11(x, 5))

Can you predict the output of `main_solution("rzokcfvept")` 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": "rzokcfvept"}, "ref_output": "\u00abwje\u00bbt\u00abpih\u00bbk\u00ababj\u00bbu\u00abyk\u00bb\u00abq\u00bb\u00abw\u00bb", "ref_code": "def main_solution(x):\n    return func_20(func_15('jibkqw'), func_11(x, 5))", "funcname": "main_solution"}
rule