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

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