You are given a code:

def main_solution(x):
    return func_20(func_15('byig'), (x + 'isqqyi'))

Can you predict the output of `main_solution("wqwg")` 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": "wqwg"}, "ref_output": "\u00abwbq\u00bbw\u00abgyi\u00bbs\u00abqiq\u00bby\u00abig\u00bb", "ref_code": "def main_solution(x):\n    return func_20(func_15('byig'), (x + 'isqqyi'))", "funcname": "main_solution"}
rule