#include <bits/stdc++.h>
using namespace std;

int main() {
  double w;
  while (cin >> w) {
    if (w <= 48.00) {
      cout << "light fly" << endl;
    } else if (w <= 51.00) {
      cout << "fly" << endl;
    } else if (w <= 54.00) {
      cout << "bantam" << endl;
    } else if (w <= 57.00) {
      cout << "feather" << endl;
    } else if (w <= 60.00) {
      cout << "light" << endl;
    } else if (w <= 64.00) {
      cout << "light welter" << endl;
    } else if (w <= 69.00) {
      cout << "welter" << endl;
    } else if (w <= 75.00) {
      cout << "light middle" << endl;
    } else if (w <= 81.00) {
      cout << "middle" << endl;
    } else if (w <= 91.00) {
      cout << "light heavy" << endl;
    } else {
      cout << "heavy" << endl;
    }
  }
}

