You are given a code:

def main_solution(x):
    return func_5(func_5('tsj', 'uu'), 'zqo')

Can you predict the output of `main_solution("ibnd")` 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": "ibnd"}, "ref_output": "zqouutsj", "ref_code": "def main_solution(x):\n    return func_5(func_5('tsj', 'uu'), 'zqo')", "funcname": "main_solution"}
rule