You are given a code:

def main_solution(x):
    return func_20(func_20('fbd', 'qetgs'), func_15('xaiyia'))

Can you predict the output of `main_solution("jgkv")` 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": "jgkv"}, "ref_output": "f\u00abqxb\u00bbe\u00abdat\u00bbg\u00absi\u00bb\u00aby\u00bb\u00abi\u00bb\u00aba\u00bb", "ref_code": "def main_solution(x):\n    return func_20(func_20('fbd', 'qetgs'), func_15('xaiyia'))", "funcname": "main_solution"}
rule