#include <string>
#include <iostream>
#include <iomanip>
#include <vector>
#include <algorithm>
#include <cstdio>
#include <climits>
#include <cfloat>

using namespace std;

#define rep(i,n) for(int i=0;i<n;i++)

const int INF = INT_MAX;

typedef long long LL;
typedef pair<int,int> P;


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;
}