#include <iostream>
#include <cstdlib>
using namespace std;
  int main() 
  {
     int a;
     cin>>a;
       switch (a)
              {
                     case 1:
                          cout<<"ena";
                          break;
                     case 2:
                          cout<<"duo";
                          break;
                     case 3:
                          cout<<"tria";
                          break;
                     case 4:
                          cout<<"tessera";
                          break;
                     case 5:
                          cout<<"pente";
                          break;
                     case 6:
                          cout<<"eksi";
                          break;
                     case 7:
                          cout<<"efta";
                          break;
                     case 8:
                          cout<<"oxtw";
                          break;
                     case 9:
                          cout<<"ennia";
                          break;
                     default :
                             cout<<"agnwstos tupos";
                             }
                                system("PAUSE");
   return 0;
}