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

int fucking_lookup_table[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()
{
	int n, nr;
	string buffer;
	ifstream fin( "cifra.in" );
	ofstream fout( "cifra.out" );

	for( fin >> n; n; --n )
	{
		fin >> buffer;
		nr = buffer[buffer.size()-1] - '0';
		if( buffer.size() > 1 )
		{
			nr += 10 * (buffer[buffer.size()-2] - '0');
		}
		fout << fucking_lookup_table[nr] << endl;
	}

	fin.close();
	fout.close();
	return 0;
}