#include <iostream>
#include <fstream>
#include <cstring>
using namespace std;
int v[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 f("cifra.in");
    ofstream g("cifra.out");
    int iu,ipu;
    char n[101],u,pu;
    long long nr,t,i,j,x,s,p,k;
    f>>t;
    for(i=1;i<=t;i++)
    {
        f>>n;   // Pt. t linii citim n
        s=strlen(n);
        u=n[s-1];
        pu=n[s-2];
        if (s==1)
        {
            iu=(int)u-48;
            g<<v[iu-1]<<'\n';
        }
        else
        {
            iu=(int)u-48;
            ipu=(int)ipu-48;
            nr=ipu*10+iu;
            g<<v[nr-1]<<'\n';
        }
    }


    f.close();
    g.close();
    return 0;
}