You are given a code:

def main_solution(x):
    return func_20(func_1('aouw', 4), func_15('lyoi'))

Can you predict the output of `main_solution("aqbiphzuif")` 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": "aqbiphzuif"}, "ref_output": "a\u00abolu\u00bbw\u00abayo\u00bbu\u00abwoa\u00bbo\u00abuiw\u00bbaouw", "ref_code": "def main_solution(x):\n    return func_20(func_1('aouw', 4), func_15('lyoi'))", "funcname": "main_solution"}
rule