#include <iostream>
using namespace std;
int main(){
	float input;
	while(cin >> input){
		if(input <= 48.0){
			cout << "light fly" << endl;
		}else if(input <= 51.0){
			cout << "fly" << endl;
		}else if(input <= 54.0){
			cout << "bantam" << endl;
		}else if(input <= 57.0){
			cout << "feather" << endl;
		}else if(input <= 60.0){
			cout << "light" << endl;
		}else if(input <= 64.0){
			cout << "light welter" << endl;
		}else if(input <= 69.0){
			cout << "welter" << endl;
		}else if(input <= 75.0){
			cout << "light middle" << endl;
		}else if(input <= 81.0){
			cout << "middle" << endl;
		}else if(input <= 91.0){
			cout << "light heavy" << endl;
		}else{
			cout << "heavy" << endl;
		}
	}

	return 0;
}