#include<stdio.h>
//#include<conio.h>
#include<string.h>
#include<stdlib.h>

int v[]={0,1,5,2,8,3,9,2,8,7,7,8,4,7,3,8,4,1,5,4,4,5,9,6,2,7,3,6,2,1,1,2,8,1,7,2,8,5,9,8,8,9,3,0,6,1,7,0,6,5,5,6,2,5,1,6,2,9,3,2,2,3,7,4,0,5,1,4,0,9,9,0,6,9,5,0,6,3,7,6,6,7,1,8,4,9,5,8,4,3,3,4,0,3,9,4,0,7,1,0,0};
long int i,t,k;
int nr;
char n[1000],a[10];
int main()
{
   FILE *in=fopen("cifra.in","rt");
   FILE *out=fopen("cifra.out","wt");
   fscanf(in,"%ld",&t);
   for(i=1;i<=t;i++)
   {
      fscanf(in,"%s",&n);
      k=strlen(n);
      if(k<=2){nr = atoi(n); fprintf(out,"%d\n",v[nr]);}
      else
      {
       nr=0;
       int m=0;
       for(int j=k-3;j<k;j++)
       {a[m]=n[j];m++;}
       nr=atoi(a);
       fprintf(out,"%d\n",v[nr%100]);
      }

   }
   return 0;

}