#include <iostream>
using namespace std;
int main() {
  double a;
  while (cin >> a) {
    if (a <= 48.0) cout << "light fly";
    else if (a <= 51.0) cout << "fly";
    else if (a <= 54.0) cout << "bantam";
    else if (a <= 57.0) cout << "feather";
    else if (a <= 60.0) cout << "light";
    else if (a <= 64.0) cout << "light welter";
    else if (a <= 69.0) cout << "welter";
    else if (a <= 75.0) cout << "light middle";
    else if (a <= 81.0) cout << "middle";
    else if (a <= 91.0) cout << "light heavy";
    else cout << "heavy";
    cout << endl;
  }
  return 0;
}