#include<iostream>
#include<string>
using namespace std;
int main(void){
    double c;
    while(cin >> c){
        if(c<=48.00)                    cout << "light fly" << endl;
        else if(48.00<c && c<=51.00)    cout << "fly" << endl;
        else if(51.00<c && c<=54.00)    cout << "bantam" << endl;
        else if(54.00<c && c<=57.00)    cout << "feather" << endl;
        else if(57.00<c && c<=60.00)    cout << "light" << endl;        
        else if(60.00<c && c<=64.00)    cout << "light welter" << endl;
        else if(64.00<c && c<=69.00)    cout << "welter" << endl;
        else if(69.00<c && c<=75.00)    cout << "light middle" << endl;
        else if(75.00<c && c<=81.00)    cout << "middle" << endl;
        else if(81.00<c && c<=91.00)    cout << "light heavy" << endl;
        else                            cout << "heavy" << endl;
    }
}
