class A{
int x;
A(int a){
System.out.println("A");
}
void show(){
System.out.println("show");
}
}
class B extends A{
int y;
B(int b){
super(b);
System.out.println("B");
}
}
public class TestAB{
public static void main(String args[]){
B b =new B(1);
b.show();
}
}