#include <fstream>
using namespace std;
#include <string>

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

const 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, 0 };
int T, N;
char s [ 101 ];

int main ()
{
	in >> T; in.get ();
	for ( ; T; --T )
	{
		in.getline ( s, 101 );
		N = strlen ( s );
		if ( N == 1 )
		{
			out << v [ s [ 0 ] - '0' ] << "\n";
			continue;
		}
		N = ( s [ N - 2 ] - '0' ) * 10 + s [ N - 1 ] - '0';
		out << v [ N ] << "\n";
	}
	
	return 0;
}