You are given a code:

def main_solution(x):
    return func_5(x, 'wai')

Can you predict the output of `main_solution("qhan")` 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": "qhan"}, "ref_output": "waiqhan", "ref_code": "def main_solution(x):\n    return func_5(x, 'wai')", "funcname": "main_solution"}
rule