#include <iostream>
using namespace std;

int main()
{
	double kg;

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