#include <iostream>

namespace foo
{
    class TestClass
    {
    public:
        struct fuckingstruct
        {
            std::string clss;
            struct fuckingstruct1
            {
                int x;
            };
        };
    };
}

using namespace std;


int main()
{
   foo::TestClass::fuckingstruct::fuckingstruct1 test;
   test.x = 3;
   cout << test.x << endl;
}