#include <iostream>
using namespace std;
 
class ITestA                 { public: virtual void methodA() = 0; };
class ITestB                 { public: virtual void methodB() = 0; };
 
class CBaseA : public ITestA
{ public: virtual void methodA() override { cout << "CBaseA methodA\n"; } };
class CBaseB : public CBaseA, public ITestB
{ public: virtual void methodB() override { cout << "CBaseB methodB\n"; } };
 
int main() {
	CBaseB b;
	b.methodA();
	b.methodB();
	return 0;
}
 

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