#include<iostream>
using namespace std;

int main()
{
    double w;

    while( cin >> 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;
}
