You are given a code:

def main_solution(x):
    return func_20(func_9(x), func_15('lfpuwk'))

Can you predict the output of `main_solution("xdpawk")` 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": "xdpawk"}, "ref_output": "x\u00abdlp\u00bba\u00abwfk\u00bbk\u00abwpa\u00bbp\u00abdux\u00bb\u00abw\u00bb\u00abk\u00bb", "ref_code": "def main_solution(x):\n    return func_20(func_9(x), func_15('lfpuwk'))", "funcname": "main_solution"}
rule