Database Choice

scheme = {1: ('Where to go', 2, 3), 2: ('Finish1',), 3: ('The end',)}

node = 1
while (len(scheme[node]) == 3):
  question, if_yes, if_no = scheme[node]
  print(question)
  answer = input()
  node = if_yes if (answer == '1') else if_no

print(scheme[node])