What will be the output of the following C++ code?

#include <new>
#include <iostream>
using namespace std;
struct A 
{
    virtual ~A() {  };
    void operator delete(void* p) 
    {
        cout << "A :: operator delete" << endl;
    }
};
struct B : A 
{
    void operator delete(void* p) 
    {
        cout << "B :: operator delete" << endl;
    }
};
int main() 
{
    A* ap = new B;
    delete ap;
}