#include <iostream>

class A1
{
public:
    void draw(){ std::cout << "A1::draw()"; }
};

class A2
{
public:
    void draw(){ std::cout << "A2::draw()"; }
};

class A : public A1, public A2
{};

int main()
{
    A a;
    a.A1::draw();
}