#include <iostream>

using namespace std;


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