You are given a code:

def main_solution(x):
    return (('xcvc' + 'wdjg') + func_15('pvaaph'))

Can you predict the output of `main_solution("lnlwgnn")` 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": "lnlwgnn"}, "ref_output": "xcvcwdjg\u00abp\u00bb\u00abv\u00bb\u00aba\u00bb\u00aba\u00bb\u00abp\u00bb\u00abh\u00bb", "ref_code": "def main_solution(x):\n    return (('xcvc' + 'wdjg') + func_15('pvaaph'))", "funcname": "main_solution"}
rule