#include <iostream>
using namespace std;

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