#include<stdio.h>   

void func(float); 

int main(void) 
{
	float tai;
	
	while(scanf("%f",&tai)!=EOF)    { 
        	func(tai);
	}  
   	return 0;
}	 
	void func(float tai) 
	{     
	float lim[10]={48.0,51.0,54.0,57.0,60.0,64.0,69.0,75.0,81.0,91.0};   
  	char kai[11][13]={"light fly","fly","bantam","feather","light","light welter","welter","light","middle","light heavy","heavy"};    
 	int i;
       	
	for(i=0;i<10;i++)    {    
		if(lim[i]>=tai){  
			break;   
	      } 
	}     
	printf("%s\n",kai[i]);
}