#include <iostream>
#include <fstream>
using namespace std;
int precalc[] = {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};
string s;
int t;

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

int main()
{
    fin >> t;
    while(t--){
        fin >> s;
        int val = s[s.size()-1]-'0';
        if(s.size() > 1){
            val = (s[s.size()-2]-'0')*10 + val;
        }
        fout << precalc[val] << "\n";
    }
    return 0;
}