You are given a code:

def main_solution(x):
    return func_20(func_15('zjavy'), func_1('wprke', 4))

Can you predict the output of `main_solution("wgn")` 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": "wgn"}, "ref_output": "\u00abwzp\u00bbr\u00abkje\u00bbw\u00abpar\u00bbk\u00abevw\u00bbp\u00abryk\u00bbewprke", "ref_code": "def main_solution(x):\n    return func_20(func_15('zjavy'), func_1('wprke', 4))", "funcname": "main_solution"}
rule