#include <fstream>
#include <string>

using namespace std;

int main()
{
	int T;
	int a[101] = { 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 };
	string s;
	ifstream f("cifra.in");
	ofstream g("cifra.out");
	f >> T;
	getline(f,s);
	for (int i = 1; i <= T; i++)
	{
		getline(f,s);
		auto len = s.length();
		string subs;
		if (len > 1)
		{
			subs = s.substr(s.length() - 2);
		}
		else
		{
			subs = s;
		}
		int x = stoi(subs);
		g << a[x] << endl;
	}
	f.close();
	g.close();
	return 0;
}