#include <iostream>
#include <cstdio>
using namespace std;

int main() {
	double w;
    while(EOF != scanf("%lf",&w)){
        if(w<=48.00)cout<<"light fly"<<endl;
        else if(w<=51.00)cout<<"fly"<<endl;
        else if(w<=54.00)cout<<"bantam"<<endl;
        else if(w<=57.00)cout<<"feather"<<endl;
        else if(w<=60.00)cout<<"light"<<endl;
        else if(w<=64.00)cout<<"light welter"<<endl;
        else if(w<=69.00)cout<<"welter"<<endl;
        else if(w<=75.00)cout<<"light middle"<<endl;
        else if(w<=81.00)cout<<"middle"<<endl;
        else if(w<=91.00)cout<<"light heavy"<<endl;
        else cout<<"heavy"<<endl;
    }
	return 0;
}