#include <iostream>
#include <algorithm>
#include <string>
using namespace std;

void solve(double w) {
  if(w <= 48.0) {
    cout << "light fly" << endl;
  } else if(w <= 51.0) {
    cout << "fly" << endl;
  } else if(w <= 54.0) {
    cout << "bantam" << endl;
  } else if(w <= 57.0) {
    cout << "feather" << endl;
  } else if(w <= 60.0) {
    cout << "light" << endl;
  } else if(w <= 64.0) {
    cout << "light welter" << endl;
  } else if(w <= 69.0) {
    cout << "welter" << endl;
  } else if(w <= 75.0) {
    cout << "light middle" << endl;
  } else if(w <= 81.0) {
    cout << "middle" << endl;
  } else if(w <= 91.0) {
    cout << "light heavy" << endl;
  } else {
    cout << "heavy" << endl;
  }
}

main() {
  double w;
  while((cin >> w)) {
    solve(w);
  }
}