#include <iostream>
using namespace std;
 
class Abstract {
  public:
    int x;
    virtual void SetX() = 0;
    virtual void PrintX() { std:: cout << x << std::endl;}
};
 
class Base: public Abstract {
  public:
    int x = 7;
    void SetX() override { Abstract::x = 11; };
    void PrintX() override { std:: cout << x << std::endl;}
};
 
int main() {
  Base *B = new Base();
  B->SetX();
  std::cout << " -----------------\n";
  std::cout << B->Abstract::x << std::endl;
  std::cout << B->Base::x << std::endl;
  std::cout << " -----------------\n";
  B->Abstract::PrintX();
  B->PrintX();
  std::cout << " -----------------\n";
  delete B;
  return 0;
}

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