#include <iostream>
using namespace std;

class someclass
{
public:
	someclass()
	{

	}
	
	virtual ~someclass() = 0;
};

class someclass2 : public someclass
{
public:
	someclass2()
	{
	}

	~someclass2()
	{

	}

private:

};

int main()
{
    someclass2 cls2;
}