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