#include <iostream>
#include <fstream>
#include <cstring>

using namespace std;

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

int main()
{
    int nr[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 T,a,c,s;
    char n[102];
    fin>>T;
    for(int j=1;j<=T;j++)
    {
        fin>>n;
        a=strlen(n);
        c=0;
        if (a-2>=0)
        {
            c=n[a-2]-'0';
        }
        s=c*10+(n[a-1]-'0');
        fout<<nr[s]<<endl;
    }
    return 0;
}