You are given a code:

def main_solution(x):
    return (func_11('fabjt', 3) + func_5('gooq', 'von'))

Can you predict the output of `main_solution("ivvzygwhk")` 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": "ivvzygwhk"}, "ref_output": "idemwvongooq", "ref_code": "def main_solution(x):\n    return (func_11('fabjt', 3) + func_5('gooq', 'von'))", "funcname": "main_solution"}
rule