#include <iostream>
using namespace std;
 
int main()
{
  double w;
    
    while (cin >> w){
      if (w <= 48.0)  cout << "light fly";

      else if (w <= 51.0) cout << "fly";

      else if (w <= 54.0) cout << "bantam";

      else if (w <= 57.0) cout << "feather";

      else if (w <= 60.0) cout << "light";

      else if (w <= 64.0) cout << "light welter";

      else if (w <= 69.0) cout << "welter";

      else if (w <= 75.0) cout << "light middle";

      else if (w <= 81.0) cout << "middle";

      else if (w <= 91.0) cout << "light heavy";

      else  cout << "heavy";
      cout << endl;
    }

    return (0);
}