#include <iostream>

using namespace std;

int main() {

	double n;

	while(cin >> n) {
		if(n<=48.00) 
			cout << "light fly" << endl;
		else if(n<=51.00)
			cout << "fly" << endl;
		else if(n<=54.00)
			cout << "bantam" << endl;
		else if(n<=57.00)
			cout << "feather" << endl;
		else if(n<=60.00)
			cout << "light" << endl;
		else if(n<=64.00)
			cout << "light welter" << endl;
		else if(n<=69.00)
			cout << "welter" << endl;
		else if(n<=75.00)
			cout << "light middle" << endl;
		else if(n<=81.00)
			cout << "middle" << endl;
		else if(n<=91.00)
			cout << "light heavy" << endl;
		else
			cout << "heavy" << endl;
	}

	return 0;

}