#include<iostream>
using namespace std;

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