#include <bits/stdc++.h>
using namespace std;
#define ll long long
#define nmax 105
#define MOD 666013         
#define INF 1000000007
//#define fin cin
//#define fout cout

ifstream fin("cifra.in");
ofstream fout("cifra.out");

int n, len;
char nr[nmax];
// urasc problema asta
int a[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 };

int main()
{
    int i;
    fin >> n;
    for (i = 1; i <= n; i++)
    {
        fin >> nr;
        len = strlen(nr);
        if (nr[len - 2] == 0)
            fout << a[nr[len - 1] - '0'] << "\n";
        else
            fout << a[((nr[len - 1] - '0') * 10 + (nr[len - 2] - '0'))] << "\n";
    }
    fout.close();
    fin.close();
    return 0;
}