You are given a code:

def main_solution(x):
    return func_20(func_1('unzoi', 3), func_15(x))

Can you predict the output of `main_solution("hyxkjzdy")` 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": "hyxkjzdy"}, "ref_output": "u\u00abnhz\u00bbo\u00abiyu\u00bbn\u00abzxo\u00bbi\u00abukn\u00bbz\u00aboji\u00bb\u00abz\u00bb\u00abd\u00bb\u00aby\u00bb", "ref_code": "def main_solution(x):\n    return func_20(func_1('unzoi', 3), func_15(x))", "funcname": "main_solution"}
rule