# include <fstream>
# include <cstring>
using namespace std;
char s[30003][100];
int main ()
{
    int t, p, z, i, v[]={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};
    ofstream fout ("cifra.out");       
    ifstream fin ("cifra.in");
    fin>>t;
    fin.get();
    for (i=1;i<=t;i++)
        fin.getline(s[i], 101);
    for (i=1;i<=t;i++)
    {
        p=strlen(s[i])-1;
        z=0;
        if (p>0)z=s[i][p-1]-'0';
        z=z*10+s[i][p]-'0';
        fout<<v[z]<<endl;
    }
    return 0;
}