You are given a code:

def main_solution(x):
    return func_20(('wquh' + 'abo'), func_15('cekjkw'))

Can you predict the output of `main_solution("uijxdqk")` 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": "uijxdqk"}, "ref_output": "w\u00abqcu\u00bbh\u00abaeb\u00bbo\u00abk\u00bb\u00abj\u00bb\u00abk\u00bb\u00abw\u00bb", "ref_code": "def main_solution(x):\n    return func_20(('wquh' + 'abo'), func_15('cekjkw'))", "funcname": "main_solution"}
rule