#include <iostream>
using namespace std;
class A
{

public:
void m1()
{
cout<<"\n m1 from class A";
}

};

class B: public A//B class inherits A as Parent
{

public:
void m2()
{
cout<<"\n m2 from class B";
}
//contains data of A+B

};

class C: public A//C class inherits A as Parent
{

public:
void m3()
{
cout<<"\n m3 from class C"; } //Contains data of A+C }; class D:public B//multilevel inheritance from A->B->D 
{

public:
void m4()
{
  cout<<"\n m4 from class D"; } //contains data of class A+B+D }; class E:public C//multilevel inheritance from A->C->E
{

public:
void m5()
{
  cout<<"\n m5 from class E";
}
  //contains data of class A+C+E

};

main()
{
  D d;//contains A+B+D properties 
  d.m1();
  d.m2();
  d.m4();
  E e;//contains A+C+E properties 
  e.m1();
  e.m3();
  e.m5();

}