Thanks friend I'll give that a shot.

Read the english again carefully. I solved the problem. But the description doesnt make any sense. As written you could only go all the way north and hit a wall. All the way south and hit a wall. All the way east and hit a wall. Or all the way west and hit a wall. Those would be your only options. You couldnt change directions and for example, go east after you had started going south.

"you can only move in one of the four cardinal directions"
to go south then east would be to move in TWO of the cardinal directions.

This is so hard to understand.

I have NO idea what I'm supposed to do for this problem. The description doesnt help at all. And why does it come with a bunch of code? Am I supposed to use that? Why does the description not even mention all of that commented out code?

This is great. This implements a lot of the ideas I had in my solution but does them in a much more logical place in the flow of the program. Makes it so easy to comprehend what is going on.

(concat . map) = concatMap

Wow! I knew someone would come up with a short composed 1 liner but I couldnt even guess what it would look like.

this is clearly the better contender for best practices imo

I like this better than the most popular solution. It's more clear and explicit. I mean neither is confusing really. But this is simpler.

I kneel.

This is good. I like this a lot.

This is good but why make your own sum'?