#include <iostream>
#include <string.h>
#include <fstream>
using namespace std;

ifstream f("cifra.in");
ofstream g("cifra.out");

int uc[30002];

int main()
{
 int con[102]={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 ch[101];
 int T;
 f>>T;
 int ppoz=0;
 while(ppoz<=T)
 {
  ppoz++;
  f>>ch;
  int l=strlen(ch);
  int poz;
  if(l<2)
  {
   poz=ch[0]-'0';
  }
  else
   poz=(ch[l-2]-'0')*10+ch[l-1]-'0';
  uc[ppoz]=con[poz];
 }
 for(int k=1;k<=T;k++)
  g<<uc[k]<<"\n";
  f.close();
 g.close();
 return 0;
}