Stack Exchange network consists of 183 Q&A communities including Stack Overflow, the largest, most trusted online community for developers to learn, share their knowledge, and build their careers.
If I have typed TUNO: I continue with C, I'm back to position 1 with T, anything else and I'm back to nothing. If I have typed COCO: I continue with N, I'm back to position 3 with C, anything else and I'm back to nothing. Does this help clarify the difference?
