#include <stdio.h>  
#include <string.h>  
#define dim 101  
   
char n[dim];  
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]);  
    }  
    fclose(stdin);fclose(stdout);  
    return 0;
}