#include<stdio.h>  
#include<string.h>  
int lng,n,i,k,p,cif,nr[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 s[200];  
int main()  
{  
  freopen("cifra.in","r",stdin);  
  freopen("cifra.out","w",stdout);  
  scanf("%d\n",&p);  
  for(i=1;i<=p;i++)  
  {  
              gets(s);    
              lng=strlen(s); 
              if(strlen(s)==1)     
                 cif=(int)s[0]-(int)'0';     
              else     
                 cif=(int)s[lng-1]-(int)'0'+((int)s[lng-2]-(int)'0')*10;       
              k=cif;  
              printf("%d\n",nr[cif]);  
  }  
  return 0;  
}