#include<fstream>
#include<string.h>
using namespace std;
ifstream fin("cifra.in");
ofstream fout("cifra.out");
char n[102];
long i,t,a;
int solutii[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()
{
    fin>>t;
    for(i=1;i<=t;i++)
    {
        fin>>n;
        a=strlen(n)-1;
        if(a>0)
        {
            int b = (n[a - 1] - '0') * 10 + n[a] - '0';
            fout<<solutii[b]<<endl;
        }
        else
            fout<<solutii[n[a]-'0']<<endl;
    }
    return 0;
}