#include<iostream>
using namespace std;

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