#include<iostream>
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;
	}
}