I don't understand why this isn't working?

  from random import *
    for i in range(5):
  x = randint(1, 2)
  y = randint(1, 2)
  sum = float(x) + float(y)
  for i in range(2):
    print (x , end =" "),
    print ('+', end =" "),
    print (y)
    a = input('\n')
    if a == sum:  # this should let it know if it is right.
      print ('Good job')
      break
    else:
      if i<1: print ('Try again')
      elif i==1: print ('Wrong, the answer is, %s.' % sum)

My code is supposed to ask an addition question and be able to tell if you are wrong or right. Currently, it says everything is wrong. I don't understand why it does this.