You are given a code:

def main_solution(x):
    return func_20(('eowugu' + 'eig'), func_15('beaz'))

Can you predict the output of `main_solution("iunnon")` 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": "iunnon"}, "ref_output": "e\u00abobw\u00bbu\u00abgeu\u00bbe\u00abiag\u00bb\u00abz\u00bb", "ref_code": "def main_solution(x):\n    return func_20(('eowugu' + 'eig'), func_15('beaz'))", "funcname": "main_solution"}
rule