#include <fstream>
#include <vector>
#include <string>

using namespace std;

vector <int> sol{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};

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

int main()
{
    int nDecimal;
    int nUnit;
    int nSize;
    int nNumbers;
    string buffer;
    f>>nNumbers;
    f.ignore();
    for (int i=0;i<nNumbers;++i){
        nDecimal=0;
        getline(f,buffer);
        nSize=buffer.size();
        nUnit=buffer[nSize-1]-'0';
        if(nSize>=2)
            nDecimal=buffer[nSize-2]-'0';
        t<<sol[nDecimal*10+nUnit]<<'\n';
    }
    return 0;
}