#include <fstream>
#include <cstring>

using namespace std;

int main()
{
    ifstream f("cifra.in");
    ofstream g("cifra.out");

    int v[101]={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 t;
    string n;

    f >> t;
    int a;
    for(int i=1; i<=t; i++)
    {
        f >> n;

        int l=n.size();
        if(l==1) a=n[0]-'0';
        else if(l>=2) a=(n[l-2]-'0')*10+(n[l-1]-'0');

        g << v[a] << endl;
    }
}