You are given a code:

def main_solution(x):
    return func_20(func_5(x, 'ucpb'), func_15(x))

Can you predict the output of `main_solution("tiswymaqq")` 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": "tiswymaqq"}, "ref_output": "u\u00abctp\u00bbb\u00abtii\u00bbs\u00abwsy\u00bbm\u00abawq\u00bbq\u00aby\u00bb\u00abm\u00bb\u00aba\u00bb\u00abq\u00bb\u00abq\u00bb", "ref_code": "def main_solution(x):\n    return func_20(func_5(x, 'ucpb'), func_15(x))", "funcname": "main_solution"}
rule