#include<iostream.h>  
 #include<fstream.h>  
 int main()  
 {  
     int n,nr,a[101]={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},i;  
     char x='z',y='z',z='z';  
     ifstream f("cifra.in");  
     ofstream g("cifra.out");  
     f>>n;  
     f.get(x);  
    f.get(x);  
     for (i=1;i<=n;i++)  
     {  
     while (x!='\n')  
     {  
         z=y;  
         y=x;  
         f.get(x);  
     }  
     f.get(x);  
     if (z!='z'&&y!='z')  
     nr=(z-'0')*10+y-'0';  
     else nr=y-'0';  
     g<<a[nr]<<'\n';  
     z='z';  
     y='z';  
     }  
     f.close();  
     g.close();  
 return 0;  
 }