#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();
		int poz = 0;
		if (len > 1)
			poz = (buf[len - 2] - '0') * 10;
		poz += buf[len - 1] - '0';
		cout << ult[poz - 1] << endl;
	}

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

	return 0;
}