#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);
}