You are given a code:

def main_solution(x):
    return func_20(('bzu' + x), func_5('ikpn', 'yxie'))

Can you predict the output of `main_solution("hwbciorf")` 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": "hwbciorf"}, "ref_output": "byzxuihewibkcpinorf", "ref_code": "def main_solution(x):\n    return func_20(('bzu' + x), func_5('ikpn', 'yxie'))", "funcname": "main_solution"}
rule