virt

#include <cstdlib>
#include <iostream>

using namespace std;

class instrument
{
      public: virtual void gra()
      {
             cout<<"gram /n";
      };
};

class gitara : public instrument{
      void gra(){
           cout << "gram na gitarze\n""
           }
           };

int main(int argc, char *argv[])
{

    system("PAUSE");
    return EXIT_SUCCESS;
}