C++ :

#include<iostream>
using namespace std;

class Mammal{
public:
	Mammal(){
	    cout<<"Constructor of Mammal."<<endl;
	}
	~Mammal(){
	    cout<<"Destructor of Mammal."<<endl;
	}
};

class Dog:public Mammal{
public:	
	Dog(){
	    cout<<"Constructor of Dog."<<endl;
	}
	~Dog(){
	    cout<<"Destructor of Dog."<<endl;
	}
};

int main(){
	int n;
	cin>>n;
	Dog *p = new Dog[n];
	delete[] p;
    return 0;
}