#include <bits/stdc++.h>

using namespace std;

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

int main()
{
    int t;
    in >> t;
    while (t--)
    {
        string s;
        in >> s;
        int n = s.size();
        int x;
        if (n>1)
            x = s[n-1] + (s[n-2] - '0') * 10 - '0';
        else
            x = s[n-1] - '0';
        out << v[x] << '\n';
    }
    return 0;
}