#include <iostream>
#include <cstdio>

using namespace std;
#define rep2(x,from,to) for(int x = (from); x < (to); ++(x))
#define rep(x,to) rep2(x,0,to)

int main() {
	double w;
	while(scanf("%lf", &w) != EOF) {
		if(w <= 48.0) cout << "light fly" << endl;
		else if(w <= 51.0) cout << "fly" << endl;
		else if(w <= 54.0) cout << "bantam" << endl;
		else if(w <= 57.0) cout << "feather" << endl;
		else if(w <= 60.0) cout << "light" << endl;
		else if(w <= 64.0) cout << "light welter" << endl;
		else if(w <= 69.0) cout << "welter" << endl;
		else if(w <= 75.0) cout << "light middle" << endl;
		else if(w <= 81.0) cout << "middle" << endl;
		else if(w <= 91.0) cout << "light heavy" << endl;
		else cout << "heavy" << endl;
	}
	return 0;
}