all valid python 3

project_euler/problem_06/sol1.py

@@ -12,9 +12,9 @@ from __future__ import print_function
 
 suma = 0
 sumb = 0
-n = int(raw_input())
+n = int(input())
 for i in range(1,n+1):
     suma += i**2
     sumb += i
 sum = sumb**2 - suma
-print(sum)
+print(sum)

project_euler/problem_06/sol2.py

@@ -9,8 +9,8 @@ Hence the difference between the sum of the squares of the first ten natural num
 Find the difference between the sum of the squares of the first N natural numbers and the square of the sum.
 '''
 from __future__ import print_function
-n = int(raw_input())
+n = int(input())
 suma = n*(n+1)/2
 suma **= 2
 sumb = n*(n+1)*(2*n+1)/6
-print(suma-sumb)
+print(suma-sumb)