#include <iostream> 
using namespace std;

class A {
public:
    int a;
    int getB() {
        return B::b;
    }
    class B {
    public:
                B() {
            b = 1;
        }
        int b;
    };
};

int main() 
{
    A a;
    cout << a.getB();
    return 0;
}