You are given a code:

def main_solution(x):
    return func_20(func_23(x, 2), func_15('jobu'))

Can you predict the output of `main_solution("rqczbiehx")` 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": "rqczbiehx"}, "ref_output": "r\u00abqjc\u00bbz\u00abboi\u00bbe\u00abhbx\u00bb1\u00abu\u00bb", "ref_code": "def main_solution(x):\n    return func_20(func_23(x, 2), func_15('jobu'))", "funcname": "main_solution"}
rule