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


#define Nmax 128

int t,n,v[101]={0,1,5,2,8,3,9,2,8,7,7,8,4,7,3,8,4,1,5,4,4,5,9,6,2,7,3,6,2,1,1,2,8,1,7,2,8,5,9,8,8,9,3,0,6,1,7,0,6,5,5,6,2,5,1,6,2,9,3,2,2,3,7,4,0,5,1,4,0,9,9,0,6,9,5,0,6,3,7,6,6,7,1,8,4,9,5,8,4,3,3,4,0,3,9,4,0,7,1,0,0,};
char c[Nmax];


int main()
{
    int i;
    freopen("cifra.in","r",stdin);
    freopen("cifra.out","w",stdout);
    scanf("%d",&t);
    
    for(i=1;i<=t;++i)
        {
            scanf("%s\n",c);
            n=strlen(c);
            if(n==1)
                n=c[0]-'0';
            else
                n=(c[n-2]-'0')*10+c[n-1]-'0';
            printf("%d\n",v[n]);
        }
            
    
    return 0;    
}