#include <iostream>
using namespace std;
int main( void )
{
	double weight;
	while ( cin >> weight )
	{
		if ( weight <= 48.0 )
			cout << "light fly" << endl;
		else if ( weight <= 51.0 )
			cout << "fly" << endl;
		else if ( weight <= 54.0 )
			cout << "bantam" << endl;
		else if ( weight <= 57.0 )
			cout << "feather" << endl;
		else if ( weight <= 60.0 )
			cout << "light" << endl;
		else if ( weight <= 64.0 )
			cout << "light welter" << endl;
		else if ( weight <= 69.0 )
			cout << "welter" << endl;
		else if ( weight <= 75.0 )
			cout << "light middle" << endl;
		else if ( weight <= 81.0 )
			cout << "middle" << endl;
		else if ( weight <= 91.0 )
			cout << "light heavy" << endl;
		else
			cout << "heavy" << endl;
	}
	return 0;
}