That's really smart, I didn't know about this kind of slicing (with ::), thanks ! More

I did quite the same but a bit longer :) That 'for else' troubles me a bit, it's weird. oO More

That was my first thought, but I didn't see the comma in the third assert so I based my answer with a string therefore it was a little more "elaborate". (But it was easy, I just had to make sure the entrance variable was of type tuple, else you just replace right by left :)) More

I used the same imports, but I published it in the creative category lol :D More

The use of the set here is really smart ! I note this aside :) More