#include <iostream>
#include <string>
#include <fstream>
using namespace std;

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

	int v[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, 1, 0 };
	int t;
	string n;

	fin >> t;
	int k;
	for (int i = 1; i <= t; i++)
	{
		fin >> n;

		int length = n.size();
		if (length == 1)
		{
			k = n[0] - '0';
		}
		else if (length >= 2)
		{
			k = (n[length - 2] - '0') * 10 + (n[length - 1] - '0');
		}
		fout << v[k] << endl;
	}
	return 0;
}