You are given a code:

def main_solution(x):
    return func_20(func_20('wzijd', 'rcuvfk'), func_15('muzjzc'))

Can you predict the output of `main_solution("qispda")` 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": "qispda"}, "ref_output": "w\u00abrmz\u00bbc\u00abiuu\u00bbj\u00abvzd\u00bbf\u00abkj\u00bb\u00abz\u00bb\u00abc\u00bb", "ref_code": "def main_solution(x):\n    return func_20(func_20('wzijd', 'rcuvfk'), func_15('muzjzc'))", "funcname": "main_solution"}
rule