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A simple implementation of Kaprekar's routine in FLUTTER.
6174 is one of those little numerical gremlins that mathematicians adore: Kaprekar’s constant.
Here’s the trick, this thing is like a mathematical gravity well. Any 4-digit number (with at least two distinct digits) gets sucked into 6174 by a simple ritual: 1. Take your number. 2. Arrange digits descending → call that D. 3. Arrange digits ascending → call that A. 4. Compute D – A. 5. Repeat.
No matter where you start, you fall into 6174 in at most 7 iterations. Once you land, it loops forever:
7641 – 1467 = 6174 7641 – 1467 = 6174 (yep, it stays)
A tiny deterministic attractor hiding in the bland land of 4-digit integers. Feels like the universe leaving Post-It notes behind saying “psst… chaos isn’t the boss here.”