#include <iostream>
using namespace std;

void judge(double weight){
	if(weight <= 48.00){
		cout << "light fly" << endl;
	}else if(weight <= 51.00){
		cout << "fly" << endl;
	}else if(weight <= 54.00){
		cout << "bantam" << endl;
	}else if(weight <= 57.00){
		cout << "feather" << endl;
	}else if(weight <= 60.00){
		cout << "light" << endl;
	}else if(weight <= 64.00){
		cout << "light welter" << endl;
	}else if(weight <= 69.00){
		cout << "welter" << endl;
	}else if(weight <= 75.00){
		cout << "light middle" << endl;
	}else if(weight <= 81.00){
		cout << "middle" << endl;
	}else if(weight <= 91.00){
		cout << "light heavy" << endl;
	}else {
		cout << "heavy" << endl;
	}
}

int main(){
	double weight;
	while(cin >> weight) judge(weight);
	return 0;
}