main() {
        auto {
            a = 2 + 3;
            x = new X();
            {
              int b = a + 5;
            }
            //here b is out of scope!
             //But if i declare b using 'auto' in this way:
            auto {
                b = a + 5;
            }
            new_var = b + a; //b is visible
            {
                auto example = 2;
            }
            //here example is out of scope!
        }
    }