#include <iostream>
#include <algorithm>
#include <string>
#include <vector>
#include <stack>
#include <queue>
#include <cstring>
#include <limits>
#include <cmath>
#include <cfloat>

#define FOR(i,b,n) for(int i=b;i<n;i++)
#define REP(i,b,n) for(i=b;i<n;i++)
#define CLR(mat) memset(mat, 0, sizeof(mat))

using namespace std;

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