#include <iostream>

namespace One {
namespace Two {

class ExampleClass {
public:

    // static members can be accessed without a class being instantiated
	static int i;
};

}
}

// they also need to be defined outside the class
int One::Two::ExampleClass::i = 500;

int main()
{
	std::cout << One::Two::ExampleClass::i << std::endl;
}