class A
{
	int x = 10;
}
class B extends A
{
	float y = 50.25f;
}
class C extends B
{
	char z = 'K';
}

class Inheritance 
{
	public static void main(String[] args) 
	{
		System.out.println("Hello World!");
		A s1 = new A();
		System.out.println(s1.x);
		B s2 = new B();
		System.out.println(s2.x);
		System.out.println(s2.y);
		C s3 = new C();
		System.out.println(s3.x);
		System.out.println(s3.y);
		System.out.println(s3.z);

	}
}