#include<iostream>
using namespace std;

int main(){
  double n;

  while(cin >> n){
    if(n<=48.0)cout << "light fly" << endl;
    else if(n>48.00 && n<=51.00)cout << "fly" << endl;
else if(n>51.00 &&n<=54.0)cout << "bantam" << endl;
else if(n>54.00 && n<=57.00)cout << "feather" << endl;
else if(n>57.00 && n<=60.00)cout << "light" << endl;
else if(n>60.00 && n<=64.00)cout << "light welther" << endl;
else if(n>64.00&& n<=69.00)cout << "welter" << endl;
 else if(n>69.00 && n<=75.00)cout << "light middle" << endl;
else if(n>75.00 && n<=81.00)cout << "middle" << endl;
else if(n>81.00 && n<=91.00)cout << "light heavy" << endl;
else if(n>91.00)cout << "heavy" << endl;


  }

}