You are given a code:

def main_solution(x):
    return func_20(func_20('yuxncu', 'udhzw'), func_15('pmklu'))

Can you predict the output of `main_solution("mwzvlijl")` 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": "mwzvlijl"}, "ref_output": "y\u00abupu\u00bbd\u00abxmh\u00bbn\u00abzkc\u00bbw\u00abul\u00bb\u00abu\u00bb", "ref_code": "def main_solution(x):\n    return func_20(func_20('yuxncu', 'udhzw'), func_15('pmklu'))", "funcname": "main_solution"}
rule