#include<iostream>
using namespace std;

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