// ********** TemplateDemo.cpp **********
#include <iostream>
#include <time.h>
using namespace std;

class AbstractClass {
  public:
    void templateMethod() {
      primitiveOperation1();
      primitiveOperation2();
    }
  protected:
    virtual void primitiveOperation1() = 0;
    virtual void primitiveOperation2() = 0;
};
class ConcreteClass1 : public AbstractClass {
  protected:
    void primitiveOperation1() {}
    void primitiveOperation2() {}
};
class ConcreteClass2 : public AbstractClass {
  protected:
    void primitiveOperation1() {}
    void primitiveOperation2() {}
};
const int MAX = 2000;
int main() {
  hrtime_t t1 = gethrtime();
  for (int i=0; i<MAX; i++) {
    AbstractClass* concrete1 = new ConcreteClass1();
    AbstractClass* concrete2 = new ConcreteClass2();
    for (int j=0; j<MAX; j++) {
      concrete1->templateMethod();
      concrete2->templateMethod();
    }
  }
  hrtime_t t2 = gethrtime();
  cout << (t2-t1)/1000000 << " ";
  return 1;
}