#include <vector>
#include <iostream>

// Implementera dina klasser här

// main() ska vara oförändrad
int main()
{   
    int value{0};
    Add a1{3};
    Factorial f1{};
    Add a2{1};
    Factorial f2{};
    std::vector<Behaviour*> behaviours { &a1, &f1, &a2, &f2 };
    
    for ( Behaviour* behaviour_pointer : behaviours ) {
        value = (*behaviour_pointer).apply(value);
    }
    std::cout << value << std::endl;

}