#include <iostream>
#include <string>
using namespace std;
int main(){
	double w;
	while(cin>>w){
		if(w<=48){cout<<"light fly"<<endl;
		}else if(48<w&&w<=51){cout<<"fly"<<endl;
		}else if(51<w&&w<=54){cout<<"bantam"<<endl;
		}else if(54<w&&w<=57){cout<<"feather"<<endl;
		}else if(57<w&&w<=60){cout<<"light"<<endl;
		}else if(60<w&&w<=64){cout<<"light welter"<<endl;
		}else if(64<w&&w<=69){cout<<"welter"<<endl;
		}else if(69<w&&w<=75){cout<<"light middle"<<endl;
		}else if(75<w&&w<=81){cout<<"middle"<<endl;
		}else if(81<w&&w<=91){cout<<"light heavy"<<endl;
		}else{cout<<"heavy"<<endl;
		}
	}
	return 0;
}