Karel doesn't just want to solve puzzles; he wants to create. So his plan is to build a spiral of items, as shown below (he was watching a popular tv show and got inspired). Karel starts off in an empty map with only walls at the edges. He is in a random position (so not necessarily in the center) and facing a random direction. To build his spiral, he puts one item at his starting tile (which is not necessarily in the center) and then heads north for one tile and puts one item. Then he turns east, and continues building his spiral from there (clockwise). During this process, he drops an item on each tile. There should always be exactly one empty tile between the arm of the spiral and the previous arm. Start position End position Karel stops and executes turn_off() when his intended next step in this building process is blocked by the edge of the map. This is the end of his task. Basically, he keeps building his spiral until he is blocked by a wall. He starts off with an infinite number of items in his bag. Write your code in spiral.c.