#include <stdio.h>
#include <string.h>
using namespace std;

int x,t,l,c[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 s[101];

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