class C3 extends A {
int cx;
void m1( ) {ax = 100; cx=1;
}
public static void main(String[] s) {
  A a = A2.a2;
  B b = new B();
  int x = A2.myZero;
  a=b;
  b.m1();
  b.m2();

//  System.out.println("Hello World"));
//  System.out.println("C: "+ ax +"; B: "+b.ax +"; A: "+a.ax);
 } 
}