The conversation between human and AI assistant.
I have a passcode with 4 numbers, how many combinations are there? The password can't have any of the same numbers and you can enter the code in whatever order. So, if the code is 1234, can you also enter: 4321?
Interesting. Can you give me an example of a password that wouldn't work?
Sure. If your password was 1111 or 1233, those wouldn't be valid passwords since they have duplicate numbers.