#include <iostream>
using namespace std;
int main() {
    double w;
    while (cin >> w) {
        if (w <= 48) {
            cout << "light fly" << "\n";
        } else if (w <= 51) {
            cout << "fly" << "\n";
        } else if (w <= 54) {
            cout << "bantam" << "\n";
        } else if (w <= 57) {
            cout << "feather" << "\n";
        } else if (w <= 60) {
            cout << "light" << "\n";
        } else if (w <= 64) {
            cout << "light welter" << "\n";
        } else if (w <= 69) {
            cout << "welter" << "\n";
        } else if (w <= 75) {
            cout << "light middle" << "\n";
        } else if (w <= 81) {
            cout << "middle" << "\n";
        } else if (w <= 91) {
            cout << "light heavy" << "\n";
        } else {
            cout << "heavy" << "\n";
        }
    }
    return 0;
}