You are given a code:

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

Can you predict the output of `main_solution("gvdwwfwma")` 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": "gvdwwfwma"}, "ref_output": "\u00abqgs\u00bbe\u00abgvv\u00bbd\u00abwdw\u00bbf\u00abwwm\u00bba\u00abw\u00bb\u00abf\u00bb\u00abw\u00bb\u00abm\u00bb\u00aba\u00bb", "ref_code": "def main_solution(x):\n    return func_20(func_15(x), ('qse' + x))", "funcname": "main_solution"}
rule