#include <iostream>

using namespace std;


class A {
  public:
    A(int a):_a(a) {}
    int geta() {
        return _a;
    }
    static int _b;
  private:
    int _a;
};

int A::_b = 0;

int main(void){
  A a(2);
  A *b = new A(2);
  cout << b->geta() << endl;
  cout << b->_b << endl;
  cout << a._b << endl;
  A::_b = 42;
  cout << b->geta() << endl;
  cout << b->_b << endl;
  cout << a._b << endl;
  return 0;
}