Problem: kaprekars routine

Code: kaprekars+routine/tails_1766045584

Nibbles version: 0.2 | 0.21 | 0.22 | 0.23 | 0.24 | 0.25 | 1.00

Format: Compact | Simple | +Type | Table | JSON | .nbl (DeBruijn) | .nbl (names)

>> `. @ 
      & "0" 
        , $ 
        = r \ ; `< $ 
            10 
          $ 
10