#include <fstream>
#include <math.h>

using namespace std;

int main()
{int T,i,vT[100],s,p;
char N[111];
    ifstream f("cifra.txt");
    ofstream g("cifra2.txt");
f>>T;
for(i=1;i<=T;i++)
f>>vT[i];

    int c,c1;
    for(c=1;c<=T;c++){
        c1=1;
        s=0;
    while(c1<=vT[c]){
    p=pow(c1,c1);
    s=s+p;
    c1++;
    }
    g<<s%10<<" ";


    }

    }