#include<fstream>

#define N 105

using namespace std;

const 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};

char s[N];

int main()
{
  ifstream in("cifra.in");
  ofstream out("cifra.out");

  int t, i, c, p;

  in >> t >> ws;

  for(int i=1;i<=t;i++) {
    in.getline(s, N);
    p ^= p;
    while(s[p]) {
      p ++;
    }
    p --;
    
    if(p)
      c = (s[p-1] - '0') * 10 + (s[p] - '0');
    else
      c = s[0] - '0';
    
    out << v[c] << "\n";
    
  }
  return 0;
}