#include <stdio.h>
#include <string.h>

int T,lungime,i,u,uc[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[101];

int main ()
{
    freopen("cifra.in","r",stdin);
    freopen("cifra.out","w",stdout);
    
    scanf ("%d\n",&T);
    
    for(i=1;i<=T;i++)
    {
        gets(nr);
        lungime=strlen(nr);
       
        if(lungime>=2)
            u=(nr[lungime-2]-'0')*10+(nr[lungime-1]-'0');
        else
            u=nr[0]-'0';
            
        printf("%d\n",uc[u]);
    }
}