#include <fstream>
#include <cmath>
#include <cstring>
#include <cstdlib>
using namespace std;
const char iname[] = "cifra.in";
const char oname[] = "cifra.out";
ifstream fin(iname);
ofstream fout(oname);
long long N , nr , x , y , z , i;
char b[130];
const int a[100]={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(){
	fin>>N;
	fin.getline(b,3);
	for (i = 0; i < N; i++)
	{
		fin.getline(b,110);
		z = strlen(b);
		if (z > 1)
			x = b[z - 2]-'0';
		else
		   x = 0;
		y = b[z - 1]-'0';
		nr = x * 10 + y;
		fout << a[nr % 100] << "\n";
	}
	return 0;
}