#include <iostream>
using namespace std;

class Outer{
    public:
    void show(){
        cout<<"In A show"<<endl;
    }
    class Inner{
        public:
        void display(){
            cout<<"In B display"<<endl;
        }
    };
};
int main() {
    Outer obj;
    Inner obj3;
    obj3.display();
    obj.show();
    return 0;
}