#include <iostream>
#include <algorithm>
using namespace std;

int main()
{
	double r;
	while(cin >> r){
		if(r <= 48.00){
			cout << "light fly" << endl;
		}else if(r <= 51.00){
			cout << "fly" << endl;
		}else if(r <= 54.00){
			cout << "bantam" << endl;
		}else if(r <= 57.00){
			cout << "feather" << endl;
		}else if(r <= 60.00){
			cout << "light" << endl;
		}else if(r <= 64.00){
			cout << "light welter" << endl;
		}else if(r <= 69.00){
			cout << "welter" << endl;
		}else if(r <= 75.00){
			cout << "light middle" << endl;
		}else if(r <= 81.00){
			cout << "middle" << endl;
		}else if(r <= 91.00){
			cout << "light heaby" << endl;
		}else{
			cout << "heaby" << endl;
		}
	}
}