#include <iostream>
#include <fstream>
#include <cstring>

using namespace std;

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

    int t;
    f>>t;

    char s[105];

    //tomb generalasa
    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};

    f.get();
    for(int i=1; i<=t; i++)
    {
        f.getline(s, 105);

        int h=strlen(s);
        if(h>=2){
            g<<v[(s[h-2]-48)*10+(s[h-1]-48)]<<endl;
        }
        else g<<v[s[0]-48]<<endl;

    }


    return 0;
}