int ss(int x)
{
  double m;
  int i,f=0;
  m=sqrt(x);
  if(x%2==0) return 0;
  for(i=3;i<=m;i++)
    {
      if(x%i==0)               
       {
         f=1;
         break;                        
       }      
    }
  if(f==1) return 0;
  else return 1;
}
int main()
{
  int n,l,f,m;
  double k;
  int i,j,p;
  scanf("%d",&p);
    l=p/2;
    for(i=3;i<=l;i+=2)
       if(ss(i)&&ss(p-i))
       printf("%d %d\n",i,p-i);
    return 0;
}
