You are given a code:

def main_solution(x):
    return func_5('cli', 'gjop')

Can you predict the output of `main_solution("spjeykib")` 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": "spjeykib"}, "ref_output": "gjopcli", "ref_code": "def main_solution(x):\n    return func_5('cli', 'gjop')", "funcname": "main_solution"}
rule