#include <stdio.h> 
#include <string.h> 
 
 
char n[101]; 
long i,j,k,s,t,d; 
long c[]={0,1,5,2,8,3,9,2,8,7,7,8,4,7,3,8,4,1,5,4,4,5,9,6,2,7,3,6,2,1,1,2,8,1,7,2,8,5,9,8,8,9,3,0,6,1,7,0,6,5,5,6,2,5,1,6,2,9,3,2,2,3,7,4,0,5,1,4,0,9,9,0,6,9,5,0,6,3,7,6,6,7,1,8,4,9,5,8,4,3,3,4,0,3,9,4,0,7,1,0,0}; 
 
 
int main () 
{   freopen("cifra.in","r",stdin); 
    
freopen("cifra.out","w",stdout); 
    
scanf("%ld",&t); 
    
for(i=0;i<t;++i) 
    
{    
        
k=0; 
        
scanf("%s",&n); 
        
d=strlen(n); 
        
if(d>1) 
        
{   k+=n[d-2]-'0'; 
            
k*=10; 
            
k+=n[d-1]-'0'; 
        
} 
        
else
            
k=n[d-1]-'0'; 
        
printf("%ld\n",c[k]); 
    
} 
    
return 0; 
}