using System;

[Serializable]
public class neighbor_class
{
	public int left;

	public int right;

	public int top;

	public int bottom;

	public int top_left;

	public int top_right;

	public int bottom_left;

	public int bottom_right;

	public int self;

	public neighbor_class()
	{
		left = -1;
		right = -1;
		top = -1;
		bottom = -1;
		top_left = -1;
		top_right = -1;
		bottom_left = -1;
		bottom_right = -1;
	}
}