#include <iostream>
#include <fstream>
#include <algorithm>
#include <vector>

using namespace std;

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

int T;
string S;
vector<int> ans = { 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};
int main()
{
    fin >> T;
    for (int t = 0; t < T; ++t) {
        fin >> S;
        int x = S[S.length() - 1] - '0';
        if (S.length() > 1) {
            x += 10 * (S[S.length() - 2] - '0');
        }
        fout << ans[x] << "\n";
    }
    return 0;
}