#include <iostream>
using namespace std;

int main(void){
	double n;
	while(cin>>n){
		if(n<=48.00)cout<<"light fly"<<endl;
		else if(n<=51.0)cout<<"fly"<<endl;
		else if(n<=54.0)cout<<"bantam"<<endl;
		else if(n<=57.0)cout<<"feather"<<endl;
		else if(n<=60.0)cout<<"light"<<endl;
		else if(n<=64.0)cout<<"light welter"<<endl;
		else if(n<=69.0)cout<<"welter"<<endl;
		else if(n<=75.0)cout<<"light middle"<<endl;
		else if(n<=81.0)cout<<"middle"<<endl;
		else if(n<=91.0)cout<<"light heavy"<<endl;
		else cout<<"heavy"<<endl;
	}
	return 0;
}