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

int T,N,l,i,nr;
int main()
{
char string[99]; 
int pos[]={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};
        

freopen("cifra.in", "r", stdin);  
freopen("cifra.out", "w", stdout);  

scanf("%d\n",&T);
for(i=1;i<=T;i++)
{  
     scanf("%s",string);
     l=strlen(string); 
     if(l==1) nr=string[l-1]-'0';
     else
     nr=10*(string[l-2]-'0');           
     printf("%d\n",pos[nr]);        
        
}


return 0;
}