#338 Expresie5

#include <iostream>

using namespace std;

int main()

{

   unsigned long long int n, S=0, p;

   cin >> n;

   for (int i=1; i<=n; ++i)

   {

       p=1;

       for (int j=1; j<=i; ++j)

           p*=i;

       S+=p;

   }

   cout << "Rezultatul este " << S << endl;

}