#include <fstream>

using namespace std;
ifstream cin("cifra.in");
ofstream cout("cifra.out");
int v[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;
    cin >> n;
    string s;
    for(int i=0; i<n; i++)
    {
        cin >> s;
        int num;
        if(s.size()>=2)
        num=int(s[s.size()-1]-'0')+int(s[s.size()-2]-'0')*10;
        if(s.size()==1)
            num=int(s[s.size()-1]-'0');
        cout << v[num]<<'\n';
    }
    return 0;
}