#include<iostream>

struct A {
    void a();
};

void A::a() {std::cout << "Fungsi dari struct A" << std::endl;}

class B {
    public:
    void b();
    struct A c;
};

void B::b() {std::cout << "Fungsi dari class B" << std::endl;}

int main(){
    B obj;
    obj.b();
    obj.c.a();
    return 0;
}