You are given a code:

def main_solution(x):
    return func_20(func_15('nhyc'), func_20(x, 'dnpwd'))

Can you predict the output of `main_solution("pfqacowd")` 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": "pfqacowd"}, "ref_output": "\u00abpnd\u00bbf\u00abnhq\u00bbp\u00abayw\u00bbc\u00abdco\u00bbwd", "ref_code": "def main_solution(x):\n    return func_20(func_15('nhyc'), func_20(x, 'dnpwd'))", "funcname": "main_solution"}
rule