// tank.cc
#include <iostream>
#include <string>
using namespace std;

class Vehicle
{
  public:
    void Move(void) {
      cout << "Vehicle is moving!" << endl;
    }
};

class Weapon
{
  public:
    void Fire(void) {
      cout << "Weapon is firing!" << endl;
    }
};

class Tank: public Vehicle, public Weapon
{
};
  
int main()
{
  Tank MyTank;
  MyTank.Move();
  MyTank.Fire();
}