You are given a code:

def main_solution(x):
    return func_20(('qtvbmi' + x), func_15('uabhs'))

Can you predict the output of `main_solution("nwglgxtnr")` 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": "nwglgxtnr"}, "ref_output": "q\u00abtuv\u00bbb\u00abmai\u00bbn\u00abwbg\u00bbl\u00abghx\u00bbt\u00abnsr\u00bb", "ref_code": "def main_solution(x):\n    return func_20(('qtvbmi' + x), func_15('uabhs'))", "funcname": "main_solution"}
rule