You are given a code:

def main_solution(x):
    return func_20(func_5(x, 'zwb'), func_15('ygb'))

Can you predict the output of `main_solution("voabeiq")` 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": "voabeiq"}, "ref_output": "z\u00abwyb\u00bbv\u00aboga\u00bbb\u00abebi\u00bbq", "ref_code": "def main_solution(x):\n    return func_20(func_5(x, 'zwb'), func_15('ygb'))", "funcname": "main_solution"}
rule