1 head, extra leg work.

I do a small square, when I detect, that there’s digging to do. In part 2 I add a character to mark the end of line 2, and I go right first, then left.

Part 3 is done in a different way. I wasn’t quite sure how to do this, and then I saw someone mention recursion. Oh yes! It requires going right initially, and when I go down always checking to the left.

All my code .