Python: If Else Syntax error

I am trying to make it print a bunch of numbers if the user does not type "stop" forever. The code gives me an error at the else line.

import random
breaker= input()
while True:
if breaker =="stop":
    print ("You found out how to stop the code!!!"
else:
    print(random.randint(100000000000000000000000000000000000000000000000000000000000000000000000000, 1000000000000000000000000000000000000000000000000000000000000000000000000000))
    import time
    time.sleep(3)