You are given a code:

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

Can you predict the output of `main_solution("dfwogn")` 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": "dfwogn"}, "ref_output": "g\u00abbcm\u00bbn\u00abdmf\u00bbw\u00abokg\u00bbn\u00abe\u00bb\u00abz\u00bb", "ref_code": "def main_solution(x):\n    return func_20(('gbmn' + x), func_15('cmkez'))", "funcname": "main_solution"}
rule