#include <iostream>
using namespace std;
class A{
public:
void info() {cout<<"Komunikat z klasy A"<<endl;}
};
class B: public A{
public:
void info(){cout<<"Komunikat z klasy B"<<endl;}
};
class C: public B{
public:
void info(){cout<<"Komunikat z klasy C"<<endl;}
};
int main(){
C c;
A *ptrC = &c;
ptrC->info();
}