#include <cstring>
#include <cstdio>

using namespace std;

int main()
{
	int T, x;
	const int a[105] = { 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 };
	char s[101];
	FILE *f = fopen("cifra.in", "r");
	FILE *g = fopen("cifra.out", "w");
	//ifstream f("cifra.in");
	//ofstream g("cifra.out");
	fscanf(f, "%d", &T);
	for (int i = 1; i <= T; i++)
	{
		fscanf(f, "%s", s);
		int len = strlen(s);
		x = s[len - 1] - '0';
		if (len > 1)
		{
			x += 10 * (s[len - 2] - '0');
		}
		fprintf(g, "%d\n", a[x]);
	}
	return 0;
}