You are given a code:

def main_solution(x):
    return func_20(func_15('ndra'), func_20(x, 'wxsmv'))

Can you predict the output of `main_solution("sgpp")` 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": "sgpp"}, "ref_output": "\u00absnw\u00bbg\u00abxdp\u00bbs\u00abprm\u00bbv\u00aba\u00bb", "ref_code": "def main_solution(x):\n    return func_20(func_15('ndra'), func_20(x, 'wxsmv'))", "funcname": "main_solution"}
rule