#include <fstream>
using namespace std;
ifstream f("cifra.in");
ofstream g("cifra.out");
int s[]={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};
int main()
{
    int a, b, x, n, m;
    char p[100];
    f >> n;
    f.getline( p, 101 );
    for (int i = 1; i <= n; i ++){
        f.getline( p, 101 );
        x = strlen( p );
        if ( x-1 >=0 )
            b = p[x-1]-'0';
        else
            b = 0;
        if ( x-2 >= 0)
            a = p[x-2]-'0';
        else
            a = 0;
        m = 10*a + b;
        g << s[m] << '\n';
    }
    f.close();
    g.close();
    return 0;
}