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Create a video with the following content: Hello, I am Nhữ Duy Thìn. Today we will learn together about Stack in programming! In programming, a stack is a data structure that provides a way to organize and manage information. It is called a "stack" because its operation is similar to stacking objects on top of each other. A stack operates on the principle of "LIFO" (Last In, First Out), which means that the last element placed into the stack will be the first one to be taken out. This is similar to placing a set of books on a tray. You can only take the topmost book from the stack without accessing the books below. To make it clearer, imagine you have a stack in programming. You can perform two main operations on this stack: Push and Pop. Pushing a new element onto the top of the stack means adding a new element, which becomes the newest item and is placed on top of the stack. Removing the topmost element from the stack, on the other hand, is known as the Pop operation. When you perform this operation, the to