#include<iostream>
#include<algorithm>
using namespace std;

int main(){
    double a;
    while(cin>>a){
        if(a<48)
            cout<<"light fly"<<endl;
        else if(a<51)
            cout<<"fly"<<endl;
        else if(a<54)
            cout<<"bantam"<<endl;
        else if(a<57)
            cout<<"feather"<<endl;
        else if(a<60)
            cout<<"light"<<endl;
        else if(a<64)
            cout<<"light welter"<<endl;
        else if(a<69)
            cout<<"welter"<<endl;
        else if(a<75)
            cout<<"light middle"<<endl;
        else if(a<81)
            cout<<"middle"<<endl;
        else if(a<91)
            cout<<"light heavy"<<endl;
        else
            cout<<"heavy"<<endl;
    }
}