#include <iostream>
using namespace std;

class Inventory {
public:
    enum Fruit { APPLE, BANANA, GRAPE, ORANGE };
};

int main() {
    if(Inventory::APPLE < Inventory::Fruit::ORANGE) {
        cout << "Comparing C++03 'enum' with C++11 'enum class' is like comparing apples and oranges." << endl;
    }
}