An array is easy. It was really easy to use. And it's much more efficient in terms of memory and also in terms of execution because the it's a packed data structure where one number is right after the other. An array allocates literally four bytes for instance or whatever in a huge long array, right? Exactly. That's why when you create it, I think that the first stumbling block to create an array is that you have to look up in the documentation. But then when you do that, you're all set.