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So there is this robot. Its origin is at (0, 0), index 0. Each pair of coordinates will have same numbers for x and y. How the robot moves is this: (0, 0) index 0, (1, 1) index 1, (1, 1) index 2, (2, 2) index 3, (3, 3) index 4, (5, 5) index 5, ....
However, there is a world border that sends it b...