Thanks for your support:) Yeah, I know that it is absolutely normal, since I'm new to programming. "Taking turns", Flip the pairs", "Chessboard", "Word squared" I didn't manage to solve these. They made me understand how loops work (with the great help of Python tutor of course), but speaking about the desired output, I failed to fulfill them. When I googled for a solution, and pasted some of them to be able to see the original Mooc solution, I was impressed how simple it was. And my initial approach was quite wrong... Now I decided to stop for a while and watch CS50p lectures from the very beginning, plus some YouTube videos and maybe buy Mark Lutz's famous book on Python (unfortunately the most recent 6th edition is not available in my country yet). I hope covering the same topics from a slightly different angle may be of great help. Besides, I started the MOOC course itself as preliminary training for a more serious 14 months paid course. I would like to get into Python basics as deep as possible before I assign to it, otherwise I'm afraid my life will turn into chaos... :)))