#include <stdio.h>
   #include <string.h>  
    
 
    
int v[]={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};  
   
 int uc(char a[]) {  
    int n=0,b=0;  
      n=strlen(a);  
      if (n==1)  
           b=a[0]-'0';  
      else   
           if (n==2)  
              b=(a[0]-'0')*10+(a[1]-'0');  
           else  
             b=(a[n-2]-'0')*10+(a[n-1]-'0');  
       return b;  
   }  
     
   int main() {  
       int n;  
       char nr[102];  
       freopen("cifra.in","r",stdin);  
      freopen("cifra.out","w",stdout);  
       scanf("%d\n", &n);  
       while (gets(nr)) {  
           printf("%d\n",v[uc(nr)]);  
           nr[0]=NULL;  
       }  
       return 0;  
   }