#include <iostream>
#include <string.h>
#include <fstream>
#include <stdlib.h>

using namespace std;

int main()
{
int l,nr,t,p[101]={0,1,5,2,8,3,9,2,8,7,7,8,4,7,3,8,4,1,5,4,4,5,9,6,2,7,3,6,2,1,1,2,8,1,7,2,8,5,9,8,8,9,3,0,6,1,7,0,6,5,5,6,2,5,1,6,2,9,3,
                 2,2,3,7,4,0,5,1,4,0,9,9,0,6,9,5,0,6,3,7,6,6,7,1,8,4,9,5,8,4,3,3,4,0,3,9,4,0,7,1,0,0};
char n[30000];
ifstream f;
ofstream g;

    f.open("cifra.in");
    g.open("cifra.out");

    f>>t;
    for (int i=1;i<=t;i++) {f>>n;
                            l=strlen(n);
                            if (l<=2) nr=atoi(n);
                            else nr=atoi(n+l-2);
                            g<<p[nr]<<endl;}

    g.close();
    f.close();


return 0;}