#include <fstream>

using namespace std;

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

const int A[] = {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};
int T, N;
string S;

int main()
{
    in >> T;
    while(T--)
    {
        in >> S;
        N = S[S.size() - 1] - '0';
        if(S.size() > 1)
        {
            N = (S[S.size() - 2] - '0') * 10 + N;
        }
        out << A[N - 1] << '\n';
    }
    return 0;
}