#include <iostream>
using namespace std;
class klasa_1
{
public:
void metoda_1() { cout<<"Yes"<<endl; }
};
class klasa_2:public klasa_1
{
public:
void metoda_2()
{
klasa_1::metoda_1();
klasa_2::metoda_1();
this->metoda_1();
metoda_1();
}
};
int main()
{
klasa_2 k;
k.metoda_2();
return 0;
}
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