#include<iostream>

using namespace std;

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

