#include <iostream>

using namespace std;

int main()
{
	double weight;
	
	while (cin >> weight) {
		if (weight <= 48.0) cout << "light fly"; 
		else if (weight <= 51.0) cout << "fly";
		else if (weight <= 54.0) cout << "bantam";
		else if (weight <= 57.0) cout << "feather";
		else if (weight <= 60.0) cout << "light";
		else if (weight <= 64.0) cout << "light welter";
		else if (weight <= 69.0) cout << "welter";
		else if (weight <= 75.0) cout << "light middle";
		else if (weight <= 81.0) cout << "middle";
		else if (weight <= 91.0) cout << "light heavy";
		else cout << "heavy";
		cout << endl;
	}
	
	return 0;
}