#include<iostream>
using namespace std;

int main() {
  double n;

  while (cin >> n) {
    if (n<=48.0) cout << "light fly" << endl;
    else if (n<=51.0) cout << "fly" << endl;
    else if (n<=54.0) cout << "bantam" << endl;
    else if (n<=57.0) cout << "feather" << endl;
    else if (n<=60.0) cout << "light" << endl;
    else if (n<=64.0) cout << "light welther" << endl;
    else if (n<=69.0) cout << "welter" << endl;
    else if (n<=75.0) cout << "light middle" << endl;
    else if (n<=81.0) cout << "middle" << endl;
    else if (n<=91.0) cout << "light heavy" << endl;
    else cout << "heavy" << endl; 
    
    
  }
}