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

const string cls[] = { "",
"light fly",
"fly",
"bantam",
"feather",
"light",
"light welter",
"welter",
"light middle",
"middle",
"light heavy",
"heavy" };

const int a[] = {
    -100,
    48,
    51,
    54,
    57,
    60,
    64,
    69,
    75,
    81,
    91
};

int main(){
    double w;
    while (cin >> w){
        int i = 0;
        while (w > a[i]) i++;
        cout << cls[i] << endl;
    }
}