You are given a code:

def main_solution(x):
    return func_20(func_5('vtqt', 'qkh'), func_15('jsn'))

Can you predict the output of `main_solution("yxvweivwa")` 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": "yxvweivwa"}, "ref_output": "q\u00abkjh\u00bbv\u00abtsq\u00bbt\u00abn\u00bb", "ref_code": "def main_solution(x):\n    return func_20(func_5('vtqt', 'qkh'), func_15('jsn'))", "funcname": "main_solution"}
rule