You are given a code:

def main_solution(x):
    return func_5('soolxh', 'amhw')

Can you predict the output of `main_solution("dtnrh")` 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": "dtnrh"}, "ref_output": "amhwsoolxh", "ref_code": "def main_solution(x):\n    return func_5('soolxh', 'amhw')", "funcname": "main_solution"}
rule