#include <stdio.h>  
#include <string.h>  
using namespace std;  
int main()  
{  
int i,t,x1,x2,l;  
FILE *f,*g;  
f=fopen("cifra.in","r");  
g=fopen("cifra.out", "w");  
     
 
char c[102];  
int      a[102]=  { 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 };  
fscanf(f,"%d",&t);  
for(i=1; i<=t; i++)  
{  
fscanf(f,"%s",c);  
l=strlen(c);  
if(l==1)   
x1=0;  
else
x1=c[l-2]-'0';  
x2=c[l-1]-'0';  
fprintf(g,"%d\n",a[x1*10+x2]);  
}  
return 0; }