#include <fstream>
#include <cstring>

using namespace std;

int r[100]={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()
{
    ifstream read("cifra.in");
    ofstream write("cifra.out");
    int T, f, i, n, x, u, pu;
    char N[100];
    read>>f;
    for(i=0; i<f; i++)
    {
        read>>N;
        n=strlen(N);
        u=(int)N[n-1]-48;
        if(n==1)
            write<<r[u-1];
        else
        {
            pu=(int)N[n-2]-48;
            x=pu*10+u;
            write<<r[x-1];
        }
        write<<'\n';
    }
    write.close();
    return 0;
}