You are given a code:

def main_solution(x):
    return func_20(func_20('phijy', 'uyu'), func_15('zyznc'))

Can you predict the output of `main_solution("lynhw")` 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": "lynhw"}, "ref_output": "p\u00abuzh\u00bby\u00abiyu\u00bbj\u00abyz\u00bb\u00abn\u00bb\u00abc\u00bb", "ref_code": "def main_solution(x):\n    return func_20(func_20('phijy', 'uyu'), func_15('zyznc'))", "funcname": "main_solution"}
rule