using System;
public class XYZ
{
	int val=0;
	public XYZ(int x)
	{
		val=x;
	}
	public static void Main()
	{
		XYZ a=new XYZ(10);
		XYZ b=new XYZ(11);
		Console.WriteLine(a.Equals(b));
	}
	public override bool Equals(Object obj)
	{
		XYZ xyz=(obj as XYZ);
		if(xyz != null)
		{
			return (xyz.val==val);
		}
		else
			return false;
	}
	public static bool operator!=(XYZ x1, XYZ x2)
	{
			return !x1.Equals(x2);
	}
}