#include <iostream>
#include <string>
 
class MainMenu {
	public:
		MainMenu() = default;
		~MainMenu() = default;
 
		void createAccount();
};
 
class Account {
	public:
		Account() : firstname("John") {}
		~Account() = default;
 
	private:
		friend void MainMenu::createAccount();
		std::string firstname;
};
 
void MainMenu::createAccount() {
	Account newAccount;
	std::cout << newAccount.firstname << '\n';
}
 
int main() {
	MainMenu menu;
	menu.createAccount();
 
	return 0;
}

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