//c4:Class4.java
//author:ZhangHongbin 
//This program is protected by copyright laws.
//Overuse of class.  
class Class0
{
	void func()
	{
		int i=0;
		System.out.println("Class"+i);
	}
}
class Class1 extends Class0
{
	void func()
	{
		int i=1;
		System.out.println("Class"+i);
	}
}	
class Class2 extends Class1
{
	void func()
	{
		int i=2;
		System.out.println("Class"+i);
	}

}	

class Class3 extends Class2
{
}
class Class4 extends Class3
{
	/*
	void func()
	{
		int i=4;
		System.out.println("Class"+i);
	}
	*/
	public static void main(String[] args)
	{
		Class4 c4=new Class4();
		c4.func();

	}
}