// 2011/07/02 Tazoe

#include <iostream>
using namespace std;

int main()
{
	while(true){
		double wgt;
		cin >> wgt;
		if(cin.eof())
			break;

		if(wgt<=48.0)
			cout << "light fly" << endl;
		else if(wgt<=51.0)
			cout << "fly" << endl;
		else if(wgt<=54.0)
			cout << "bantam" << endl;
		else if(wgt<=57.0)
			cout << "feather" << endl;
		else if(wgt<=60.0)
			cout << "light" << endl;
		else if(wgt<=64.0)
			cout << "light welter" << endl;
		else if(wgt<=69.0)
			cout << "welter" << endl;
		else if(wgt<=75.0)
			cout << "light middle" << endl;
		else if(wgt<=81.0)
			cout << "middle" << endl;
		else if(wgt<=91.0)
			cout << "light heavy" << endl;
		else
			cout << "heavy" << endl;
	}

	return 0;
}