# include <stdio.h>
# include <math.h>
# include <string.h>
long i,j,t,s,s1=0,l;
char x,y,n[200],a[]="1528392878930617065671849584345962736212374051409015283928789306170656718495843459627362123740514090";
int main ()
{

freopen ("cifra.in","r",stdin);
freopen ("cifra.out","w",stdout);
scanf("%i",&t);

for(i=1;i<=t;i++){
	     n[0]=0;
	     scanf("%s",&n);
	     long l;

	     l=strlen(n);

	     if(l>=2){
	     x=(n[l-2]-'0')*10+(n[l-1]-'0');
	       }
	     else x=n[l-1]-'0';
	     x=a[x-1];
	     printf("%i\n",x-48);
	      }
return 0;
}