You are given a code:

def main_solution(x):
    return func_20(func_20('oastl', x), func_15('knljw'))

Can you predict the output of `main_solution("ogwet")` 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": "ogwet"}, "ref_output": "o\u00aboka\u00bbg\u00absnw\u00bbt\u00abell\u00bbt\u00abj\u00bb\u00abw\u00bb", "ref_code": "def main_solution(x):\n    return func_20(func_20('oastl', x), func_15('knljw'))", "funcname": "main_solution"}
rule