You are given a code:

def main_solution(x):
    return func_5(func_5('grruu', 'qqzb'), 'hhq')

Can you predict the output of `main_solution("itufsgh")` 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": "itufsgh"}, "ref_output": "hhqqqzbgrruu", "ref_code": "def main_solution(x):\n    return func_5(func_5('grruu', 'qqzb'), 'hhq')", "funcname": "main_solution"}
rule