#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;}
    
    
  }
  
  
  
  
  return 0;
}