#include <iostream>
#include <fstream>
#include <vector>
#include <math.h>
#include <string>
#include <cstdlib>
using namespace std;
int main()
{
    long long s=0,n;
    int a;
    ifstream f ("cifra.in");
    ofstream g ("cifra.out");
    vector<int> x;
    f>>n;
    for(int i=0; i<n; i++)
    {
        f>>a;
  //int b = stoi(a,0,10);
  cout<<a<<" ";
        s+=pow(a,a);
        g<<s%10;
        cout<<s%10<<" \n";
    }
    f.close();
    g.close();

}