#include <fstream>
#include <cstring>

using namespace std;

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

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 n,i,l,r,j;
char s[260];

int main()
{
    fin >> n;
    for(i=1; i<=n; i++)
    {
        fin >> s;
        l=strlen(s);
        r=0;
        if(l>=2)
        for(j=l-2; j<=l-1; j++)
            r=r*10+s[j]-'0';
        else
            r=s[0]-'0';
        fout << v[r%100] << "\n";
    }

    return 0;
}