@Override
	public int compare(HumanBeings o1, HumanBeings o2) {
		if(o1 instanceof Men && o2 instanceof Men)
			return 0;
		else if(o1 instanceof Men && o2 instanceof Women)
			return -1;
		else if (o1 instanceof Women && o2 instanceof Men)
			return 1;
		
		return 0;
			
	}