#include <iostream>
#include <fstream>
#include <string>
#include <math.h>
#include <sstream>
using namespace std;
ifstream fin("cmmdc.in");
ofstream fout("cmmdc.out");

int main()
{
    long q[30000],rez[30000];
    string a;
    string Text = "456";
    int i=0;
    while (fin>>a){
        if ( ! (istringstream(a) >> q[i]) ) q[i] = 0; ++i;
    }
    for (int j=0;j<i;++j){
    
    for (int k=0;j<q[j];++k){
        rez[j]=rez[j]+pow(k,k);
    }
    fout<<rez[j];
    }
}