#include<bits/stdc++.h>
using namespace std;
int main(){
	double w;
	while(scanf("%lf", &w) != EOF){
		if(w <= 48.0) printf("light fly\n");
		else if(w <= 51.0) printf("fly\n");
		else if(w <= 54.0) printf("bantam\n");
		else if(w <= 57.0) printf("feather\n");
		else if(w <= 60.0) printf("light\n");
		else if(w <= 64.0) printf("light welter\n");
		else if(w <= 69.0) printf("welter\n");
		else if(w <= 75.0) printf("light middle\n");
		else if(w <= 81.0) printf("middle\n");
		else if(w <= 91.0) printf("light heavy\n");
		else printf("heavy\n");
	}
	return 0;
}