#include <fstream.h>   
#include <string.h>     
ifstream fin("cifra.in");   
ofstream fout("cifra.out");   
int a[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};   
char nr[104];   
int t;     
int main()   
{   
       
   fin>>t;   
   int i,dim,uc,pc,baza;   
   fin.get();   
   for (i=1;i<=t;i++)   
     {   
     fin.getline(nr,104);   
     pc=0;   
     dim=strlen(nr)-1;   
     uc=nr[dim]-'0';   
     if (dim!=0)   
        pc=nr[dim-1]-'0';   
     baza=pc*10+uc;   
     fout<<a[baza]<<"\n";   
     }    
   return 0;    
}