#include <iostream>

namespace NS1
{
	namespace NS2
	{
		struct MyStruct
		{
			int x = 0;
		};
	}
	
	using NS2::MyStruct;
}

int main()
{
	NS1::MyStruct myStruct;
	myStruct.x = 357;
	
	std::cout << myStruct.x;
	
	return 0;
}