You are given a code:

def main_solution(x):
    return func_20(('ludsf' + x), func_15('qzti'))

Can you predict the output of `main_solution("yeneros")` 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": "yeneros"}, "ref_output": "l\u00abuqd\u00bbs\u00abfzy\u00bbe\u00abnte\u00bbr\u00abois\u00bb", "ref_code": "def main_solution(x):\n    return func_20(('ludsf' + x), func_15('qzti'))", "funcname": "main_solution"}
rule