  void main()
  {int a,b,c,i,s;
     scanf("%d", &a);
	 for (b=3;b<=a/2;b=b+2)
	 {c=a-b;
	   s=0;
	   for (i=3;i<=b/2;i=i+2)
	   {if (b%i==0)
	   {s=1;break;}
	   }
	   if (s==1) continue;
	   else 
           for (i=3;i<=c/2;i=i+2)
	   {if (c%i==0)
	   {s=1;break;}
	   }
	   if (s==0)
		   printf("%d %d\n", b,c);
	 }
  } 