You are given a code:

def main_solution(x):
    return func_20(func_17('dchsfj'), func_15('kcjd'))

Can you predict the output of `main_solution("uvuioerxkq")` 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": "uvuioerxkq"}, "ref_output": "j\u00abfks\u00bbh\u00abccd\u00bb\u00abj\u00bb\u00abd\u00bb", "ref_code": "def main_solution(x):\n    return func_20(func_17('dchsfj'), func_15('kcjd'))", "funcname": "main_solution"}
rule