#include <fstream>
#include <cstring>
using namespace std;
ifstream fin("cifra.in");
ofstream fout("cifra.out");
char y[105];
int x[105]={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};
int main(){
  int t, i, n;
  fin>>t;
  for(i=1; i<=t; i++){
    fin>>y;
    n=strlen(y);
    if(n==1)
      fout<<x[y[n-1]-49]<<"\n";
    else
      fout<<x[(y[n-2]-48)*10+y[n-1]-49]<<"\n";
  }
  return 0;
}