You are given a code:

def main_solution(x):
    return func_20(func_5('ivmg', 'lceo'), func_15('fios'))

Can you predict the output of `main_solution("wgzbvizdlv")` 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": "wgzbvizdlv"}, "ref_output": "l\u00abcfe\u00bbo\u00abiiv\u00bbm\u00abgo\u00bb\u00abs\u00bb", "ref_code": "def main_solution(x):\n    return func_20(func_5('ivmg', 'lceo'), func_15('fios'))", "funcname": "main_solution"}
rule