Modernize Python 2 code to get ready for Python 3

Project Euler/Problem 03/sol2.py

@@ -3,6 +3,7 @@ Problem:
 The prime factors of 13195 are 5,7,13 and 29. What is the largest prime factor of a given number N?
 e.g. for 10, largest prime factor = 5. For 17, largest prime factor = 17.
 '''
+from __future__ import print_function
 n=int(input())
 prime=1
 i=2
@@ -13,4 +14,4 @@ while(i*i<=n):
     i+=1
 if(n>1):
     prime=n
-print prime
+print(prime)