//Class
#include<bits/stdc++.h>
using namespace std;

int main(){
  double w;
  while(cin>>w){
    if(w<=48.0)cout<<"light fly";
    else if(w<=51.0)cout<<"fly";
    else if(w<=54.0)cout<<"bantam";
    else if(w<=57.0)cout<<"feather";
    else if(w<=60.0)cout<<"light";
    else if(w<=64.0)cout<<"light welter";
    else if(w<=69.0)cout<<"welter";
    else if(w<=75.0)cout<<"light middle";
    else if(w<=81.0)cout<<"middle";
    else if(w<=91.0)cout<<"light heavy";
    else cout<<"heavy";
    cout<<endl;
  }
  return 0;
}