You are given a code:

def main_solution(x):
    return func_20(func_15(x), func_5(x, 'kwdn'))

Can you predict the output of `main_solution("lfoxwah")` 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": "lfoxwah"}, "ref_output": "\u00abklw\u00bbd\u00abnfl\u00bbf\u00aboox\u00bbw\u00abaxh\u00bb\u00abw\u00bb\u00aba\u00bb\u00abh\u00bb", "ref_code": "def main_solution(x):\n    return func_20(func_15(x), func_5(x, 'kwdn'))", "funcname": "main_solution"}
rule