You are given a code:

def main_solution(x):
    return func_20(func_20(x, 'edh'), func_15('qyqq'))

Can you predict the output of `main_solution("nqyjl")` 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": "nqyjl"}, "ref_output": "n\u00abeqq\u00bbd\u00abyyh\u00bbj\u00ablq\u00bb\u00abq\u00bb", "ref_code": "def main_solution(x):\n    return func_20(func_20(x, 'edh'), func_15('qyqq'))", "funcname": "main_solution"}
rule