You are given a code:

def main_solution(x):
    return func_20(func_15('vndg'), func_13('clrwnh', '-'))

Can you predict the output of `main_solution("ceiz")` 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": "ceiz"}, "ref_output": "\u00abcv-\u00bbl\u00ab-nr\u00bb-\u00abwd-\u00bbn\u00ab-gh\u00bb", "ref_code": "def main_solution(x):\n    return func_20(func_15('vndg'), func_13('clrwnh', '-'))", "funcname": "main_solution"}
rule