#include<fstream>
#include<string.h>

using namespace std;

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

long long s[200]={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 i,k,n,nr;
    char a[101];
    fin>>n;
    fin.get();
    for(i=1;i<=n;i++)
    {k=i;nr=0;
                   fin.getline(a,101);
                  // fout<<"a= "<<a<<"\n";
                   if(strlen(a)>1)
                   {nr=nr*10+int(a[strlen(a)-2])-'0';
                //   fout<<nr<<" ";
                  
                   } nr=nr*10+int(a[strlen(a)-1])-'0';
                   //fout<<nr<<"\n";
                    // k=k%100-1;
                     fout<<s[nr-1];
                    // if(i!=n)
                     fout<<"\n";}
return 0;
}