import random

def GuessingGame(a = 7, b = 18):
  print "I'm thinking of a number between", a, "and", b

  d = 0
  contador = 0
  c = random.randrange(a,b)

  while c != d:
    e = input ("Enter a number: ")
    d = int(e)

    contador += 1

  print "Correct. It only took you", contador, "tries!"


GuessingGame()