#include <cstring>
#include <fstream>

using namespace std;

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

char N[102];

int v[] = {
	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() {
	int T;
	fin >> T;
	fin.get();
	for (int i = 1; i <= T; i++) {
		fin.getline(N, 102);
		int l = strlen(N), result;
		if (l == 1)
			result = v[N[0] - '0'];
		else
			result = v[(N[l - 2] - '0') * 10 + N[l - 1] - '0'];
		fout << result << endl;
	}

	return 0;
}