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

