import re

wzor = r"([A-Za-z0-9\._]{1,20})@([A-Za-z0-9\._]{1,20})\.([A-Za-z]{2,3})"
kropki = r"(\.){2}|(\.@)|(@\.y)"
for _ in range(int(input())):
    email = input()
    match = re.match(wzor,email)
    if not match:
        print ("Nie")
    elif re.search(kropki,email):
        print("Nie")
    elif len(match.group())==len(email):
        print("Tak")
    else:
        print("Nie")