It's a knock on the left side of the door, and it's a knock on the side of the phone, and it's a knock on the left hand, and it's a knock on the right side, and it's a knock on the right side, and it's a knock on the left side, and it's a knock on the right side, and it's a knock on the left side, and it's a knock on the left side, and it's a knock on the left side, and it's a knock on the left side, and it's a knock on the right side, and it's a knock on the right side, and it's on the left, and it's on the left, and it's on the left, and it's on the left, and it's on the right, and it's on the left, and it's on the left, and it's on the left, and it's on the left, and it's on the left, and it's on the left, and it's on the left, and it's on the left, and it's on the left, and it's on the left, and it's on the left, and it's on.