#include <iostream>
using namespace std;

int main()
{
	double w;
	while(cin >> w)
	{
		if(w <= 48)
			cout << "light fly";
		else if(w > 48.00 && w <= 51.00)
		    cout << "fly";
		else if(w > 51.00 && w <= 54.00)
		    cout << "bantam";
		else if(w > 54.00 && w <= 57.00)
		    cout << "feather";
		else if(w > 57.00 && w <= 60.00)
		    cout << "light";
		else if(w > 60.00 && w <= 64.00)
		    cout << "light welter";
		else if(w > 64.00 && w <= 69.00)
		    cout << "welter";
		else if(w > 69.00 && w <= 75.00)
		    cout << "lihgt middle";
		else if(w > 75.00 && w <= 81.00)
		    cout << "middle";
		else if(w > 81.00 && w <= 91.00)
		    cout << "light heavy";
		else
		    cout << "heavy";
		
		cout << endl;
	}
	
	return 0;
}