#include<iostream>
#include<string>
using namespace std;
int main(){
	double w;
	while(cin >> w){
		if(w <= 48.00) cout << "light fly";
		else if(w <= 51.00) cout << "fly";
		else if(w <= 54.00) cout << "bantam";
		else if(w <= 57.00) cout << "feather";
		else if(w <= 60.00) cout << "light";
		else if(w <= 64.00) cout << "light welter";
		else if(w <= 69.00) cout << "welter";
		else if(w <= 75.00) cout << "light middle";
		else if(w <= 81.00) cout << "middle";
		else if(w <= 91.00) cout << "light heavy";
		else cout << "heavy";
	}
}