You are given a code:

def main_solution(x):
    return func_20(func_20('avcwah', 'fpj'), func_15('nysqsa'))

Can you predict the output of `main_solution("dkgjm")` 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": "dkgjm"}, "ref_output": "a\u00abfnv\u00bbp\u00abcyj\u00bbw\u00abash\u00bb\u00abq\u00bb\u00abs\u00bb\u00aba\u00bb", "ref_code": "def main_solution(x):\n    return func_20(func_20('avcwah', 'fpj'), func_15('nysqsa'))", "funcname": "main_solution"}
rule