#include <iostream>
#include <fstream>
#include <string>
using namespace std;
int main() {
    int n, i, j, p, q, t, s=0, k, l, z, x, c;
    char pop[1000];
    fstream f1, f2;
    int vect[100]={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};
    f2.open("cifra.out", ios::out);
    f1.open("cifra.in", ios::in);
    f1>>n;
    int len;
    for(i=0; i<n; i++) {
             f1>>pop;
             len = strlen(pop);
             if(pop[len-2]) {
                          x=(pop[len-2]-'0')*10 + (pop[len-1]-'0');
             }
             else {
                  x=pop[len-1]-'0';
             }
             f2<<vect[x]<<endl;
    }
    f1.close(); f2.close();
    return 0;
}