#include <cstdio>
#include <cstring>
#include <cmath>
#include <iostream>
#include <algorithm>
#include <vector>
#include <stack>
using namespace std;
int a[1000005];
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;
    }
    return 0;
}

