You are given a code:

def main_solution(x):
    return (func_15('fvrai') + func_5('wdqfw', 'nv'))

Can you predict the output of `main_solution("wqytgaslxu")` 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": "wqytgaslxu"}, "ref_output": "\u00abf\u00bb\u00abv\u00bb\u00abr\u00bb\u00aba\u00bb\u00abi\u00bbnvwdqfw", "ref_code": "def main_solution(x):\n    return (func_15('fvrai') + func_5('wdqfw', 'nv'))", "funcname": "main_solution"}
rule