Consider the following statements regarding Augmented Reality (AR) and Virtual Reality (VR):

1. In Virtual Reality, digital images are overlaid onto the user's view of the real world through a smartphone or computer camera.

2. In Augmented Reality, the real world is completely blocked out so the user experiences a fully simulated environment.

3. Augmented Reality adds computer generated elements onto a live view of the real world, typically viewed through a camera.

4. Virtual Reality creates a fully immersive artificial environment that shuts out the physical surroundings.

Which of the statements given above are correct?