#include <stdio.h>

int main(void){
	double w;

	while(scanf("%lf", &w) != EOF){
		if(w <= 48.00){
			printf("light fly\n");
		}else if(w > 48.00 && w <= 51.00){
			puts("fly");
		}else if(w > 51.00 && w <= 54.00){
			puts("bantam");
		}else if(w > 54.00 && w <= 57.00){
			puts("feather");
		}else if(w > 57.00 && w <= 60.00){
			puts("light");
		}else if(w > 60.00 && w <= 64.00){
			puts("light welter");
		}else if(w > 64.00 && w <= 69.00){
			puts("welter");
		}else if(w > 69.00 && w <= 75.00){
			puts("light middle");
		}else if(w > 75.00 && w <= 81.00){
			puts("middle");
		}else if(w > 81.00 && w <= 91.00){
			puts("light heavy");
		}else{
			puts("heavy");
		}
	}

	return 0;
}