You are given a code:

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

Can you predict the output of `main_solution("lvgommzvnj")` 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": "lvgommzvnj"}, "ref_output": "q\u00abqlv\u00bba\u00ablvv\u00bbg\u00abogm\u00bbm\u00abzov\u00bbn\u00abjm\u00bb\u00abm\u00bb\u00abz\u00bb\u00abv\u00bb\u00abn\u00bb\u00abj\u00bb", "ref_code": "def main_solution(x):\n    return func_20(('qqva' + x), func_15(x))", "funcname": "main_solution"}
rule