#include<fstream>
#include<cstring>
#include<cstdlib>
using namespace std;

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

int main()
{
    char char c[102],a[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 n,s=0;
    in>>n;
    for(int i=1; i<n; i++)
    {
        gets(c);
        n=strlen(c)-1;
        if(n>0) s=((int)c[n-1]-48)*10+((int)c[n]-48);
        else s=(int)c[n]-48;

        out<<a[s%100]<<"\n";
    }
    in.close();
    out.close();
    return 0;
}