#include <iostream>
 
class ServoPart {
public:
    virtual bool move() {
        std::cout << "servopart::move" << std::endl;
        return true;
    }
};
 
struct RoboPart {
    virtual void doJob() =0;
    virtual bool move() =0;
};
 
 
struct ServoRoboPart: public ServoPart, RoboPart
{
	virtual bool move(){ ServoPart::move(); return true; };
};
 
class Claw : public ServoRoboPart {
public:
    void doJob() {std::cout << "claw::doJob" << std::endl;}
};
 
class Arm : RoboPart {
public:
    void doJob() {std::cout << "arm::doJob" << std::endl;}
    bool move() {std::cout << "arm::move" << std::endl; return true;}
};
 
int main()
{
	Claw c;
	Arm a;
	a.move();
	a.doJob();
	c.move();
	c.doJob();
}

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