You are given a code:

def main_solution(x):
    return func_20(func_15('lcjytw'), func_20(x, 'qkst'))

Can you predict the output of `main_solution("sykzqwfpdx")` 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": "sykzqwfpdx"}, "ref_output": "\u00abslq\u00bby\u00abkck\u00bbs\u00abzjt\u00bbq\u00abwyf\u00bbp\u00abdtx\u00bb\u00abw\u00bb", "ref_code": "def main_solution(x):\n    return func_20(func_15('lcjytw'), func_20(x, 'qkst'))", "funcname": "main_solution"}
rule