@Override
	public int compareTo(House obj)
	{
		if ((double) this.value /  (double) this.area > (double) obj.value / (double) obj.area)
		{
			return -1;
		}
		else if ((double) this.value / (double) this.area < (double) obj.value / (double) obj.area)
		{
			return 1;
		}
		else
		{
			if (this.area > obj.area)
			{
				return 1;
			}
			else if (this.area < obj.area)
			{
				return -1;
			}
		}
		return 0;
	}