#include <iostream>
using namespace std;

int main(){
    double d;

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

    return 0;
}