You are given a code:

def main_solution(x):
    return func_5('piuup', 'ble')

Can you predict the output of `main_solution("jluth")` 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": "jluth"}, "ref_output": "blepiuup", "ref_code": "def main_solution(x):\n    return func_5('piuup', 'ble')", "funcname": "main_solution"}
rule