Translate the text into English. A luxurious ocean liner is preparing for a long voyage. On board are old friends from the Tip-Top hotel: the twins Zack and Cody, the strict Mr. Moseby, who is wearing the uniform of the ship's hotel manager, and London Tip-Top, the daughter of the steamboat's owner. Along with their studies on board, they will meet many new friends, stopping in ports of various countries, where new adventures await them.