public int compareTo(Point that)
	{

		if (this.y < that.y)
		{
			return -1;
		} 
		else if (this.y > that.y)
		{
			return 1;
		} 
		else if (this.x < that.x)
		{
			return -1;
		} 
		else if (this.x > that.x)
		{
			return 1;
		}
		else
		{
			return 0;
		}
		/* YOUR CODE HERE */
	}