You are given a code:

def main_solution(x):
    return (func_15('gldnt') + func_17('qwn'))

Can you predict the output of `main_solution("nummegjoqg")` 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": "nummegjoqg"}, "ref_output": "\u00abg\u00bb\u00abl\u00bb\u00abd\u00bb\u00abn\u00bb\u00abt\u00bbnwq", "ref_code": "def main_solution(x):\n    return (func_15('gldnt') + func_17('qwn'))", "funcname": "main_solution"}
rule