You are given a code:

def main_solution(x):
    return func_20(('ivndm' + 'jztcq'), func_15(x))

Can you predict the output of `main_solution("ylxacsihw")` 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": "ylxacsihw"}, "ref_output": "i\u00abvyn\u00bbd\u00abmlj\u00bbz\u00abtxc\u00bbq\u00aba\u00bb\u00abc\u00bb\u00abs\u00bb\u00abi\u00bb\u00abh\u00bb\u00abw\u00bb", "ref_code": "def main_solution(x):\n    return func_20(('ivndm' + 'jztcq'), func_15(x))", "funcname": "main_solution"}
rule