#include <iostream>
#include <vector>
#include <cmath>
#include <fstream>
#include <string>

using namespace std;

int main() {

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

	int ult[] = {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 n;
	cin >> n;
	while (n--) {
		string buf;
		cin >> buf;
		int len = buf.size() - 1;
		int poz = 0;
		if (len)
			poz = (buf[len] - '0') * 10;
		poz += buf[len] - '0';
		cout << ult[poz - 1] << endl;
	}

	cin.close();
	cout.close();

	return 0;
}