#include<iostream>
using namespace std;

int main(){
  double n;

  while(cin >> n){
    if(n<=48.0)cout << "light fly" << endl;
    else if(n>48.0 && n<=51.0)cout << "fly" << endl;
    else if(n>51.0 &&n<=54.0)cout << "bantam" << endl;
    else if(n>54.0 && n<=57.0)cout << "feather" << endl;
    else if(n>57.0 && n<=60.0)cout << "light" << endl;
    else if(n>60.0 && n<=64.0)cout << "light welther" << endl;
    else if(n>64.0 && n<=69.0)cout << "welter" << endl;
    else if(n>69.0 && n<=75.0)cout << "light middle" << endl;
    else if(n>75.0 && n<=81.0)cout << "middle" << endl;
    else if(n>81.0 && n<=91.0)cout << "light heavy" << endl;
    else{cout << "heavy" << endl;}
    
    
  }
  
  
  
  
  return 0;
}