import json
from datetime import datetime

with open("input.json") as ifile:
    data = json.loads(ifile.read())

adm_msgs = sorted(
    filter(
        lambda x: x["from"]["name"] == "Administrasjonen",
        data["data"][0]["messages"]["data"]
    ), key=lambda x: datetime.strptime(x["created_time"], "%Y-%m-%dT%H:%M:%S%z")
)

if "Automatisk svar" in adm_msgs[-1]["message"]:
    print("Siste melding var automatisk")