Basic Destructors and Multi Inheritance

[Xistenial]

I have created 3 classes that all need to inherit from one another and print out the following :
Destructor of classA
Destructor of classC
Destructor of classB

However I am strugling with the multi inheritance part and I am not entirely sure about the format.Heres what I have so far;

//CLASS A.cpp

classA::classA()
{
}

classA::~classA()
{
	cout << "Destructor of classA" << endl;
}

classC::classC()
{
}

classC::~classC()
{
	cout << "Destructor of classC" << endl;
}

classB::classB()
{
}

classB::~classB()
{
	cout << "Destructor of classB" << endl;
}

And then my header files

using namespace std;

class classA
{
	public:
		classA();
		~classA();
};

And so on for the rest of them. I know i have to implement the multi inheritance in the header file but how? And themn would the .cpp file have to change? Thank you

[Xistenial]

Ok solved it myself.